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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 289. Отображено 180.
21-01-2020 дата публикации

Method and apparatus for protecting wireless power receiver from excessive charging temperature

Номер: US0010541564B2

An apparatus and a method for are provided for a wireless power receiver. The method includes receiving power from a wireless power transmitter; measuring a temperature of a point in the wireless power receiver during reception of the wireless power; regulating the received power; identifying the temperature at a first time point; maintaining an amount of the regulated power to be provided to a battery with a first level if the identified temperature is lower than a preset temperature; decreasing the amount of the regulated power if the identified temperature is greater than or equal to the preset temperature; in response to decreasing the amount of the regulated power, identifying the temperature at a second time point after the first time point; and increasing the amount of the regulated power to the first level if the identified temperature at the second time point is lower than the preset temperature.

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25-04-2013 дата публикации

RECEIVED POWER CONVERSION DEVICE FOR RESONANT WIRELESS CHARGING SYSTEM

Номер: US20130099591A1

Provided is a received power conversion device for a resonant wireless charging system, including a wireless power receiver for receiving wireless power from a wireless power transmission device, a rectifier for rectifying power in an Alternating Current (AC) form received in the wireless power receiver into a Direct Current (DC), a free-wheeling switching unit for switching according to a switching control signal to form a path for free-wheeling the power in the AC form, a feedback circuit fed back with an output signal of a corresponding power conversion device to detect a level of the output signal, and a controller for controlling switching of the free-wheeling switching unit according to the output level detected by the feedback circuit. 1. A received power conversion device for a resonant wireless charging system , the received power conversion device comprising:a wireless power receiver for receiving wireless power transmitted from a wireless power transmission device;a rectifier for rectifying power in an Alternating Current (AC) form received in the wireless power receiver into a Direct Current (DC);a free-wheeling switching unit for performing a switching operation according to a switching control signal and forming a path for free-wheeling the power in the AC form received in the wireless power receiver;a feedback circuit fed back with an output signal of a corresponding power conversion device and detecting a level of the output signal; anda controller for controlling a switching operation of the free-wheeling switching unit according to the output level detected by the feedback circuit.2. The received power conversion device of claim 1 , wherein the wireless power receiver comprises a second coil for absorbing electric waves emitted from a first coil of the wireless power transmission device and a resonant first capacitor serially connected with the second coil.3. The received power conversion device of claim 1 , wherein the free-wheeling switching unit ...

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06-07-2021 дата публикации

Wireless charging apparatus and method

Номер: US0011056932B2

Methods and apparatus for wireless charging are provided. Transmission power transmitted from a wireless power transmitter is received at a power receiver of a wireless power receiver. A battery of the wireless power receiver is charged with the received transmission power. It is determined whether the battery is fully charged. A packet from a communication unit of the wireless power receiver is transmitted to the wireless power transmitter when the battery is fully charged. An auxiliary charge of the battery is performed by receiving strength-reduced transmission power from the wireless power transmitter.

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07-03-2017 дата публикации

Integrated circuit for wireless charging and operating method thereof

Номер: US0009590450B2

An integrated circuit for wireless charging and a method for wireless charging by an integrated circuit are provided. The integrated circuit includes a first wireless communication unit configured to support a first wireless communication method; a first route selection unit configured to perform a selection from among a first power input from a battery and a second power input according to wireless charging to be allowed as input; a power block configured to receive the selected power from the first route selection unit, and provide the received power to the first wireless communication unit; and a controller configured to control an operation of the first route selection unit.

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25-07-2017 дата публикации

Rechargeable lithium battery and method of preparing same

Номер: US0009716288B2
Автор: Se-Ho Park
Принадлежит: Samsung SDI Co., Ltd.

A rechargeable lithium battery and a method of preparing the same are described. The rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and a liquid electrolyte including a lithium salt and a non-aqueous organic solvent. A separator is interposed between the negative electrode and positive electrode and includes a support. A fluoro-based polymer layer is positioned on both sides of the support. The positive electrode includes the positive active material in an amount from about 30 to about 70 mg/cm2.

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06-09-2016 дата публикации

Apparatus and method for transmitting wireless power

Номер: US0009438074B2

A method and a wireless power transmitter are provided for transmitting wireless power to at least one wireless power receiver. The method includes setting, by the wireless power transmitter, a search channel to be used for communication with the at least one wireless power receiver; detecting at least one of an energy level and a Received Signal Strength Indication (RSSI) value of a signal received on the search channel; and determining whether to designate the search channel as a communication channel based on the detection results.

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13-11-2018 дата публикации

Power transmitting method and power transmitter for communication with power receiver

Номер: US0010128690B2

A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.

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09-11-2021 дата публикации

Power transmitting and receiving apparatus and method for performing a wireless multi-power transmission

Номер: US0011171519B2

A method and an apparatus for wireless power transmission by a power transmitting apparatus is provided. The method includes transmitting detection power towards a power receiving apparatus, detecting an impedance change made by the power receiving apparatus, transmitting driving power for communication with the power receiving apparatus towards the power receiving apparatus, receiving a search signal from the power receiving apparatus within a preset time, and determining whether the impedance change is within a first acceptable range based on the received search signal.

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19-12-2017 дата публикации

Over-voltage protection device for resonant wireless power transmission device and method for controlling the over-voltage protection device

Номер: US0009847668B2

A wireless power transmission device is provided. The wireless power transmission device includes a resonance signal generator and a controller. The resonance signal generator is configured to transmit wireless power to a wireless power reception device. The controller is configured to adjust the wireless power transmitted to the wireless power reception device, when a predetermined condition caused by over-voltage protection operation at the wireless power reception device is detected.

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24-03-2020 дата публикации

Wireless charging apparatus and method

Номер: US0010601263B2

Methods and apparatus for wireless charging are provided. Transmission power transmitted from a wireless power transmitter is received at a power receiver of a wireless power receiver. A battery of the wireless power receiver is charged with the received transmission power. It is determined whether the battery is fully charged. A packet from a communication unit of the wireless power receiver is transmitted to the wireless power transmitter when the battery is fully charged. An auxiliary charge of the battery is performed by receiving strength-reduced transmission power from the wireless power transmitter.

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05-08-2010 дата публикации

ELECTRODE ASSEMBLY AND SECONDARY BATTERY HAVING THE SAME

Номер: US20100196755A1
Принадлежит: Samsung SDI Co., Ltd.

An electrode assembly and a secondary battery having the same, which include a positive electrode having a positive electrode active material layer deposited on a positive electrode collector, a negative electrode having a negative electrode active material layer deposited on a negative electrode collector, and a separator separating the positive electrode from the negative electrode. The negative electrode active material layer includes a negative electrode active material of a metal-graphite complex, and the thickness of the negative electrode collector is in the range from 16.3 to 24.2% of that of the negative electrode active material layer. The thickness of the secondary battery can be reduced while maintaining battery capacity by controlling the ratio of the thickness of the negative active material layer to the negative electrode collector and controlling the tensile stress of the negative electrode collector.

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28-04-2020 дата публикации

Method and power transmitter for controlling power transmission

Номер: US0010637275B2
Принадлежит: Samsung Electronics Co., Ltd

Methods and apparatuses are provided for controlling power transmission in a power transmitter. Voltage information including a minimum voltage, a maximum voltage, and a first voltage, is received from each of a plurality of power receivers. Power is transmitted to the plurality of power receivers based on the voltage information. A respective report about a power reception condition is received from each of the plurality of power receivers while transmitting the power. Each respective report includes a measured voltage at a corresponding power receiver of the plurality of power receivers. A power receiver is selected from among the plurality of power receivers based on the received reports. An amount of the power is adjusted by reducing a difference between a first voltage of the selected power receiver and a measured voltage of the selected power receiver.

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05-05-2015 дата публикации

Method and apparatus for controlling wireless power of a receiver in a wireless power transmission/reception system

Номер: US0009024484B2

A method and apparatus are provided for controlling power of a receiver in a wireless power transmission/reception system, wherein a wireless power quantity supplied to receivers from a transmitter is controlled through communication between the receivers. The method includes receiving required power information transmitted from a joining receiver in a charging area of a transmitter; determining whether the transmitter is capable of supplying required power to the joining receiver based on the required power information; and requesting the joining receiver to maintain a standby state, when the transmitter is not capable of supplying the required power to the joining receiver.

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02-07-2019 дата публикации

Method and power transmitter for controlling power transmission

Номер: US0010340726B2

Methods and apparatuses are provided for controlling power transmission in a power transmitter. A first message including a first voltage and a second voltage that is greater than the first voltage, is received from at least one power receiver. Power is transmitted to the at least one power receiver. A second message including a third voltage measured at the at least one power receiver during power transmission from the power transmitter, is received from the at least one power receiver. An amount of the power is adjusted based on whether the third voltage is between the first voltage and the second voltage. The first voltage is a minimum voltage for the at least one power receiver.

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25-04-2013 дата публикации

WIRELESS POWER RECEIVER FOR ADJUSTING MAGNITUDE OF WIRELESS POWER

Номер: US20130099588A1

A wireless power receiver for wirelessly receiving power from a wireless power supplier includes a power receiver for receiving wireless power from the wireless power supplier and storing the wireless power for a first time period, a rectifier connected to the power receiver for rectifying the wireless power, a power adjuster connected to the rectifier and an output end, for adjusting a magnitude of the wireless power by enabling the power receiver to store the wireless power for the first time period and delivering the wireless power to the output end for a second time period, and a controller for determining the first and second time periods. 1. A wireless power receiver that wirelessly receives power from a wireless power supplier , the wireless power receiver comprising:a power receiver that receives wireless power from the wireless power supplier and stores the wireless power for a first time period;a rectifier, connected to the power receiver, that rectifies the wireless power;a power adjuster, connected to the rectifier and an output end, that adjusts a magnitude of the wireless power by enabling the power receiver to store the wireless power for the first time period and deliver the wireless power to the output end for a second time period; anda controller that determines the first and second time periods.2. The wireless power receiver of claim 1 , wherein the power adjuster comprises a switch which is open-circuited to disconnect the power rectifier from the output end for the first time period and is short-circuited to connect the power rectifier and the output end.3. The wireless power receiver of claim 2 , wherein the switch comprises an N-type metal-oxide-semiconductor field-effect transistor (MOSFET) device claim 2 ,wherein the controller determines the first and second time periods by adjusting a voltage applied to a gate of the N-type MOSFET.4. The wireless power receiver of claim 3 , further comprising a bootstrapper that bootstraps the voltage ...

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16-07-2019 дата публикации

Wireless power receiver and control method thereof

Номер: US0010355529B2

Methods and apparatus are provided for controlling a wireless power receiver for wirelessly receiving power. A drive power for driving the wireless power receiver is received from a wireless power transmitter. A communication network is established with the wireless power transmitter. A wireless power network that is controlled by the wireless power transmitter is joined. A charge power is received from the wireless power transmitter.

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16-02-2010 дата публикации

Disease diagnosis apparatus and method using photocurrent of amorphous silicon

Номер: US0007662613B2

Provided is a disease diagnosis apparatus and method for detecting a specific disease. The disease diagnosis chip, includes: a light sensing layer; a probe molecule fixed on the light sensing layer; and an electrode connected to the light sensing layer to detect an electric signal corresponding to photoelectric charges of the light sensing layer.

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17-01-2013 дата публикации

WIRELESS POWER RECEIVER

Номер: US20130015813A1
Принадлежит: Samsung Electronics Co., Ltd.

A wireless power receiver is provided for wirelessly receiving driving power from a wireless power transmitter. The wireless power receiver includes a power reception unit for wirelessly receiving the driving power from the wireless power transmitter. The wireless power receiver also includes a rectifier for rectifying the driving power output from the power reception unit into an Alternating Current (AC) power type. The wireless power receiver additionally includes a load unit for storing the rectified driving power output from the rectifier. The wireless power receiver further includes a controller for detecting an amount of the rectified driving power stored in the load unit to control output from the rectifier to the load unit. The wireless power receiver also includes an impedance adjuster for adjusting an impedance in the power reception unit according to the amount of the rectified driving power stored in the load unit. 1. A wireless power receiver for wirelessly receiving driving power from a wireless power transmitter , the wireless power receiver comprising:a power reception unit for wirelessly receiving the driving power from the wireless power transmitter;a rectifier for rectifying the driving power output from the power reception unit into an Alternating Current (AC) power type;a load unit for storing the rectified driving power output from the rectifier;a controller for detecting an amount of the rectified driving power stored in the load unit to control output from the rectifier to the load unit; andan impedance adjuster for adjusting an impedance in the power reception unit according to the amount of the rectified driving power stored in the load unit.2. The wireless power receiver as claimed in claim 1 , wherein the controller detects that the amount of the rectified driving power stored in the load unit changes a charging mode from a Constant Current (CC) mode to a Constant Voltage (CV) mode.3. The wireless power receiver as claimed in claim 2 , ...

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24-07-2014 дата публикации

WIRELESS ELECTRIC POWER TRANSMITTER

Номер: US20140203772A1

A wireless electric power transmitter for transmitting electric power for a charging function to a wireless electric power receiver is provided. The wireless electric power transmitter includes an electric power supply unit which supplies electric power; an amplifier which amplifies and outputs the electric power supplied from the electric power supply unit by a preset gain as a magnitude of measured impedance increases; and a transmitter which transmits the amplified electric power to the wireless electric power receiver. 1. A wireless electric power transmitter for transmitting electric power for a charging function to a wireless electric power receiver , the wireless electric power transmitter comprising:an electric power supply unit which supplies electric power;an amplifier which amplifies and outputs the electric power supplied from the electric power supply unit by a preset gain as a magnitude of measured impedance increases; anda transmitter which transmits the amplified electric power to the wireless electric power receiver.2. The wireless electric power transmitter as claimed in claim 1 , wherein the amplifier is a class D type amplifier.3. The wireless electric power transmitter as claimed in claim 1 , wherein the amplifier comprises:an RF choke device which is connected to the electric power supply unit and is supplied with the electric power from the electric power supply unit;a first node which is connected to one end of the RF choke device;a second node which is connected to another end of the RF choke device;a load resistor; andan impedance changing and filtering unit which includes a capacitor having one end connected to the first node and another end connected to one end of the second node and one end of the load resistor, and a coil having one end connected to the first node and another end connected to another end of the load resistor.6. The wireless electric power transmitter as claimed in claim 1 , wherein the amplifier comprises:an RF choke ...

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24-09-2013 дата публикации

System and method for efficient wireless charging of a mobile terminal

Номер: US0008541975B2

Disclosed is a method and apparatus for efficient wireless charging of a mobile terminal. The method includes detecting the mobile terminal by a charging apparatus, receiving a unique identifier of the mobile terminal from the mobile terminal and determining if the mobile terminal is a rechargeable device, when the mobile terminal is a rechargeable device, applying a direct voltage to a first coil of the charging apparatus and arranging the charging apparatus and the mobile terminal, and terminating an application of the direct voltage and then applying an alternating voltage, to supply charging power required for the mobile terminal.

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13-07-2017 дата публикации

METHOD FOR PROMOTING VIRUS INFECTION AND INCREASING VIRUS PRODUCTION, BY USING CELL LINE HAVING LOST BST2 GENE FUNCTIONS

Номер: US20170198025A1
Принадлежит:

The present invention relates to a method for promoting virus infection and increasing virus production, by using a cell line having lost Bst2 gene functions and, more specifically, to a method for promoting target virus infection and increasing target virus production, in addition to promoting virus budding and inhibiting host cell apoptosis by removing the Bst2 gene from a cell line having the ability to produce a virus. According to the present invention, the method for promoting target virus infection and increasing target virus production, by using an animal cell line having lost Bst2 gene functions, can improve production yields of a target virus and an antigen protein, and thus can be useful for the preparation of vaccines for treating and preventing viral diseases. 1. A method for promoting an infection of a target virus , the method comprising infecting a cell line which lacks the function of Bst2 gene and has the ability to produce virus , with a target virus.2. A method for increasing a production of a target virus , the method comprising:infecting a cell line which lacks the function of Bst2 gene and has an ability to produce virus, with a target virus; andculturing the infected cell line.3. A method for producing an antigenic protein , the method comprising:infecting a cell line which lacks the function of Bst2 gene and has an ability to produce virus, with a target virus; andculturing the infected cell line, thereby producing the antigenic protein.4. The method of claim 3 , wherein the cell line is an animal cell line.5. The method of claim 4 , wherein the animal cell line is selected from the group consisting of MDCK claim 4 , Vero claim 4 , a mouse fibroblast claim 4 , and a human cell.6. The method of claim 3 , wherein the virus is an enveloped or naked virus.7. The method of claim 6 , wherein the enveloped virus is influenza or herpesvirus.8. The method of claim 3 , wherein the virus is a DNA or RNA virus.9. The method of claim 3 , wherein the cell ...

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02-01-2018 дата публикации

Wireless charging apparatus and method

Номер: US0009859746B2

Methods and apparatus for wireless charging are provided. Transmission power transmitted from a wireless power transmitter is received at a power receiver of a wireless power receiver. A battery of the wireless power receiver is charged with the received transmission power. It is determined whether the battery is fully charged. A packet from a communication unit of the wireless power receiver is transmitted to the wireless power transmitter when the battery is fully charged. An auxiliary charge of the battery is performed by receiving strength-reduced transmission power from the wireless power transmitter.

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19-09-2019 дата публикации

POWER TRANSMITTING METHOD AND POWER TRANSMITTER FOR COMMUNICATION WITH POWER RECEIVER

Номер: US20190288562A1
Принадлежит:

A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.

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18-07-2013 дата публикации

WIRELESS POWER TRANSMITTER, WIRELESS POWER RECEIVER, AND CONTROL METHODS THEREOF

Номер: US20130181665A1
Принадлежит: Samsung Electronics Co., Ltd.

Disclosed is a control method of a wireless power transmitter for transmitting charging power to a wireless power receiver. The control method includes receiving a communication request signal for transmitting a wireless power from the wireless power receiver, determining whether to set a communication with the wireless power receiver based on the received communication request signal, when it is determined to set the communication with the wireless power receiver, transmitting a charge command signal to control an on state of a load switch at a predetermined point in time to the wireless power receiver, applying the charging power and detecting a load change by the wireless power receiver at the predetermined point in time. 1. A control method of a wireless power transmitter for transmitting charging power to a wireless power receiver , the control method comprising:receiving a communication request signal for transmitting wireless power from the wireless power receiver;determining whether to set a communication with the wireless power receiver based on the received communication request signal;when it is determined to set the communication with the wireless power receiver, transmitting a charge command signal to control an on state of a load switch at a predetermined point in time to the wireless power receiver;applying the charging power; anddetecting a load change by the wireless power receiver at the predetermined point in time.2. The control method of claim 1 , further comprising:comparing the predetermined point in time with a load change detected point in time.3. The control method of claim 2 , further comprising:maintaining applying the charging power if the predetermined point in time is associated with the load change detected point in time, and stopping applying the charging power if the predetermined point in time is not associated with the load change detected point in time.4. The control method of claim 1 , further comprising:before receiving the ...

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12-04-2018 дата публикации

ELECTRONIC DEVICE FOR REDUCING INTERFERENCE BETWEEN A CHARGING COIL AND AN ANTENNA

Номер: US20180102212A1
Принадлежит:

Disclosed is an electronic device including a battery, a case covering the battery, a wireless charging coil positioned between the battery and the case; and a communication antenna positioned between the battery and the wireless charging coil, wherein one of the communication antenna and the wireless charging coil is positioned to surround the other one of the communication antenna and the wireless charging coil, and wherein the communication antenna is spaced from the wireless charging coil by a predetermined distance and prevents interference between the communication antenna and the wireless charging coil. 1. An electronic device comprising:a battery;a case covering the battery;a wireless charging coil positioned between the battery and the case; anda communication antenna positioned between the battery and the wireless charging coil,wherein one of the communication antenna and the wireless charging coil is positioned to surround the other one of the communication antenna and the wireless charging coil, andwherein the communication antenna is spaced from the wireless charging coil by a predetermined distance and prevents interference between the communication antenna and the wireless charging coil.2. The electronic device of claim 1 , wherein the wireless charging coil is positioned to surround the communication antenna.3. The electronic device of claim 1 , wherein the communication antenna is positioned to surround the wireless charging coil.4. The electronic device of claim 1 , wherein the wireless charging coil is electrically connected to the electronic device.5. The electronic device of claim 1 , wherein the communication antenna is electrically connected to the electronic device.6. The electronic device of claim 1 , further comprising a shielding portion disposed along the wireless charging coil and having a shape corresponding to a shape of the wireless charging coil.7. The electronic device of claim 6 , wherein the shielding portion is made from ferrite ...

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24-04-2018 дата публикации

Method and apparatus for controlling wireless power transmission

Номер: US0009954376B2

A wireless power transmission controlling apparatus and method are provided. The apparatus includes a communication unit; and a controller configured to compute an amount of transmission power to be transmitted, based on information received from a wireless power receiving apparatus; output a wireless power transmission control signal corresponding to the computed amount of transmission power; filter the wireless power transmission control signal and pass a harmonic wave corresponding to a predetermined communication frequency band; and control the communication unit to transmit the wireless power transmission control signal based on the harmonic wave.

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16-10-2014 дата публикации

WIRELESS CHARGING APPARATUS AND METHOD

Номер: US20140308996A1
Принадлежит: Samsung Electronics Co., Ltd.

The present invention relates to a method for adjusting a power information transmission period from a mobile terminal to be charged in a wireless charging apparatus. To this end, a wireless charging apparatus according to the present invention comprises: a communication unit for receiving power information from at least one mobile terminal; and a control unit for determining a transmission period of power information for each of the at least one mobile terminal based on the power information and adjusting the transmission period according to whether the power information is received from the at least one mobile terminal. As described above, the waste of resources, which may occur due to unnecessary packet transmission, can be reduced by adaptively adjusting the transmission period, thereby increasing the efficiency of power transmission . 1. An apparatus for wirelessly charging a mobile terminal , the apparatus comprising:a communication unit that receives power information from at least one mobile terminal capable of being charged; anda control unit that determines a mobile terminal with which communication is to be performed during an allocation period with respect to the at least one mobile terminal, schedules a cycle for receiving power information for the each mobile terminal during the allocation period, and transmits the scheduled information.2. The apparatus as claimed in claim 1 , wherein the scheduled information is provided to the at least one mobile terminal by using a notice frame.3. The apparatus as claimed in claim 1 , wherein the control unit reduces a transmission cycle of power information of a mobile terminal that has not transmitted the power information.4. The apparatus as claimed in claim 3 , wherein the control unit determines whether there is a mobile terminal having the transmission cycle of the power information which becomes 0 according to the reduction of the transmission cycle of the power information claim 3 , and deletes the mobile ...

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31-10-2017 дата публикации

Apparatus and method for determining whether a power receiver is removed from the apparatus

Номер: US0009806537B2

A method and apparatus are provided for determining, by a wireless power transmitter, whether a wireless power receiver is removed from a wireless power network managed by the wireless power transmitter. The method includes transmitting a command signal to report power information of the wireless power receiver at stated periods; determining whether a report signal corresponding to the command signal is received from the wireless power receiver; and determining that the wireless power receiver is removed from the wireless power network, if the report signal is not received after transmitting the command signal a predetermined number of times at the stated periods.

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10-01-2023 дата публикации

Method and power transmitter for controlling power transmission

Номер: US0011552480B2
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Methods and apparatuses are provided for controlling power transmission in a power transmitter. Voltage information including a minimum voltage, a maximum voltage, and a first voltage, is received from each of a plurality of power receivers. Power is transmitted to the plurality of power receivers based on the voltage information. A respective report about a power reception condition is received from each of the plurality of power receivers while transmitting the power. Each respective report includes a measured voltage at a corresponding power receiver of the plurality of power receivers. A power receiver is selected from among the plurality of power receivers based on the received reports. An amount of the power is adjusted by reducing a difference between a first voltage of the selected power receiver and a measured voltage of the selected power receiver.

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10-11-2016 дата публикации

CELL STRAIN HAVING INCREASED VIRUS PRODUCTION ABILITY AND PRODUCTION METHOD THEREFOR

Номер: US20160326498A1
Принадлежит:

The present invention relates to a cell line having an increased ability to produce virus and a method for preparing thereof, and more particularly, to a cell line that has an increased ability to produce virus, due to the loss of the function of the Bst-2 (tetherin) gene, and to a production method thereof. According to the present invention, a cell line lacking the function of the Bst-2 gene has an excellent ability to produce virus, compared to a wild-type cell line. Thus, when the mutant cell line is used as a virus-producing cell line, the production yield of virus can be increased. In addition, the mutant cell line can be used for the production and research of vaccines for preventing and treating viral diseases.

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05-01-2016 дата публикации

Integrated circuit for wireless charging and operating method thereof

Номер: US0009231431B2

An integrated circuit for wireless charging and a wireless charging method in an integrated circuit are provided. The integrated circuit includes a first wireless communication unit configured to support a first wireless communication method; a second wireless communication unit configured to support a second wireless communication method; a first route selection unit configured to perform a selection from among a first power input according to wired charging and a second power input according to wireless charging to be allowed as input; a second route selection unit configured to perform a selection from among a power between a third power input from a battery and a fourth power input according to wireless charging to be allowed as input; a power block configured to receive the power from any the first and second route selection units; and a controller configured to control an operation of the first and second route selection units.

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30-11-2017 дата публикации

POWER TRANSMITTING AND RECEIVING APPARATUS AND METHOD FOR PERFORMING A WIRELESS MULTI-POWER TRANSMISSION

Номер: US20170346332A1
Принадлежит:

A method and an apparatus for wireless power transmission by a power transmitting apparatus is provided. The method includes transmitting detection power towards a power receiving apparatus, detecting an impedance change made by the power receiving apparatus, transmitting driving power for communication with the power receiving apparatus towards the power receiving apparatus, receiving a search signal from the power receiving apparatus within a preset time, and determining whether the impedance change is within a first acceptable range based on the received search signal.

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02-09-2014 дата публикации

Wireless power transmission and reception apparatus having resonance frequency stabilization circuit and method thereof

Номер: US0008823215B2
Принадлежит: Samsung Electronics Co., Ltd

A wireless power transmission apparatus and method for wirelessly transmitting power to a wireless power reception apparatus electromagnetically coupled to the wireless power reception apparatus and supplying power for loads of the wireless power reception apparatus is provided. The apparatus includes a power generator for generating power having a fixed oscillation frequency; a power transmission resonator, which has a resonance frequency identical to the oscillation frequency, for wirelessly transmitting the power generated by the power generator to the wireless power reception apparatus; and a power transmission resonance frequency controller for controlling the resonance frequency of the power transmission resonator in response to a change of the resonance frequency of the power transmission resonator.

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09-11-2021 дата публикации

Method and electronic device for performing wireless charging

Номер: US0011171512B2

A method and electronic device for performing wireless charging are provided. The electronic device includes a housing, a conductive coil, a power transmission circuit electrically connected to the conductive coil, and configured to wirelessly transmit power to an outside of the housing through the conductive coil, a voltage source electrically connected to the power transmission circuit, and a control circuit electrically connected between the power transmission circuit and the voltage source. The control circuit is configured to change power radiated through the conductive coil, monitor a frequency of a signal and/or electromagnetic waves radiated through the conductive coil, and adjust a level of a voltage from the voltage source based on at least a part of a monitored result of the frequency.

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11-11-2010 дата публикации

NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY COMPRISING SAME

Номер: US20100285359A1
Принадлежит: Samsung SDI Co., Ltd.

A negative active material for a rechargeable lithium battery includes: a crystalline carbon core including pores; an amorphous carbon shell positioned on the core surface; metal nanoparticles dispersed inside the pores; and amorphous carbon inside the pores, wherein a first particle diameter difference (D50−D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90−D50) of the nanoparticles is from about 440 to about 520 nm.

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22-06-2021 дата публикации

Wireless power receiver and controlling method thereof

Номер: US0011043856B2

A method for controlling an electronic device including a charging circuit is provided. The method includes receiving power wirelessly from a power transmitting device; rectifying the received power; based on a voltage of the rectified power being greater than or equal to an allowable voltage of the charging circuit, controlling to convert the rectified power through a converting circuit of the electronic device and to output the converted power to the charging circuit for charging a battery of the electronic device, wherein the allowable voltage relates to a maximum voltage or a preferable voltage to be applied to the charging circuit; and based on the voltage of the rectified power being less than the allowable voltage of the charging circuit, controlling to stop converting the rectified power and to output the rectified power to the charging circuit by connecting the rectifying circuit to the charging circuit.

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20-10-2022 дата публикации

Active Material Reuse Method Using Cathode Scrap

Номер: US20220336879A1
Принадлежит: LG Energy Solution, Ltd.

There is provided a method for collecting and reusing an active material from positive electrode scrap. The positive electrode active material reuse method of the present disclosure includes (a) thermally treating positive electrode scrap comprising a lithium composite transition metal oxide positive electrode active material layer on a current collector in air at 300 to 650° C. for 1 hour or less for thermal decomposition of a binder and a conductive material in the active material layer, to separate the current collector from the active material layer, and collecting an active material in the active material layer, and (b) annealing the collected active material with an addition of a lithium precursor to obtain a reusable active material.

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20-03-2012 дата публикации

Printed circuit board with conductive ink/paste, having plating layers, and method for manufacturing the same

Номер: US0008138422B2

A Printed Circuit Board (PCB) and a method for manufacturing the same are provided. A circuit pattern is formed by printing conductive ink/paste on a substrate, and sintering a layer of the conductive ink or curing a layer of the conductive paste by applying heat. A primary plating layer is formed through electroless plating or electrolytic plating of a high-melting point metal on the circuit pattern. A secondary plating layer is formed through electroless plating or electrolytic plating of a precious metal on the primary plating layer to improve wetting with solder.

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06-09-2016 дата публикации

Wireless electric power receiver for wirelessly regulating electric power using switch

Номер: US0009438062B2

A wireless electric power receiver for receiving wireless electric power from a wireless electric transmitter is provided. The wireless electric power receiver includes an electric power receiving unit that receives wireless electric power from the wireless electric power transmitter; a rectifying unit that rectifies wireless electric power in the form of alternating current output from the wireless electric power receiving unit and outputs rectified electric power; and an electric power regulation unit that receives an input of the rectified electric power, outputs first electric power which has a lower value of a first voltage than that of the rectified electric power for a first period, and does not output electric power for a second period, so as to output electric power with a predetermined voltage value.

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17-11-2011 дата публикации

NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Номер: US20110281180A1
Принадлежит:

Embodiments of the present invention are directed to negative active materials for lithium rechargeable batteries and to lithium rechargeable batteries including the negative active materials. The negative active material includes a crystalline carbon material having pores, and amorphous conductive nanoparticles in the pores, on the surface of the crystalline carbon, or both in the pores and on the surface of the crystalline carbon. The conductive nanoparticles have a FWHM of about 0.35 degrees (°) or greater at the crystal plane that produces the highest peak as measured by X-ray diffraction.

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10-08-2017 дата публикации

RECHARGEABLE LITHIUM BATTERY AND METHOD OF PREPARING SAME

Номер: US20170229741A1
Принадлежит:

A rechargeable lithium battery and a method of preparing the same are described. The rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and a liquid electrolyte including a lithium salt and a non-aqueous organic solvent. A separator is interposed between the negative electrode and positive electrode and includes a support. A fluoro-based polymer layer is positioned on both sides of the support. The positive electrode includes the positive active material in an amount from about 30 to about 70 mg/cm. 1. A method of preparing a rechargeable lithium battery , the method comprising:{'sup': 2', '2, 'preparing a positive electrode comprising from about 30 mg/cmto about 70 mg/cmof a positive active material;'}preparing a negative electrode;interposing a separator between the negative electrode and the positive electrode to provide an electrode assembly, the separator comprising a support and a fluoro-based polymer layer on each side of the support which interfaces with the positive electrode or the negative electrode; andinjecting a liquid electrolyte including a lithium salt and a non-aqueous organic solvent into the electrode assembly.2. The method of claim 1 , wherein the positive electrode comprises the positive active material in an amount from about 35 mg/cmto about 65 mg/cm.3. The method of claim 1 , wherein the positive electrode has a thickness from about 90 μm to about 190 μm.4. The method of claim 1 , wherein the non-aqueous organic solvent comprises a cyclic carbonate in an amount greater than or equal to about 20 volume % of based on a total volume of the electrolyte.5. The method of claim 1 , wherein the fluoro-based polymer comprises polyvinylidene fluoride.6. The method of claim 1 , wherein the fluoro-based polymer layer has a thickness from about 2 μm to about 6 μm.7. The method of claim 1 , wherein the support comprises at least two layers.8. The ...

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07-08-2001 дата публикации

Optical fiber for light amplifier

Номер: US0006272277B1

An optical fiber for use in a light amplifier. The optical fiber is formed by doping a gerrnanium-gallium-sulfur (Ge-Ga-S) glass containing less sulfur than a GeS2-Ga2S3 stoichiometric composition line with a rare earth element, and further contains 0.1~10 atomic % of a halogen element base on the Ge-Ga-S glass. By using optical fiber, clustering of praseodymium (Pr+3) ions can be suppressed even when the concentration of added Pr+3 is high, thereby improving light amplification efficiency.

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28-04-2020 дата публикации

Power transmitting method and power transmitter for communication with power receiver

Номер: US0010637299B2

A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.

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13-02-2024 дата публикации

Method of making a reusable active material by using positive electrode scrap

Номер: US0011901528B2

There is provided a method for collecting and reusing an active material from positive electrode scrap. The method for reusing a positive electrode active material of the present disclosure includes (a) thermally treating positive electrode scrap comprising an active material layer on a current collector in air for thermal decomposition of a binder and a conductive material in the active material layer, to separate the current collector from the active material layer, and collecting an active material in the active material layer, (b-1) washing the active material collected from the step (a) with a lithium compound solution which is basic in an aqueous solution, (b-2) mixing the active material washed from the step (b-1) with a lithium precursor aqueous solution and spray drying, and (c) annealing the active material spray dried from the step (b-2) to obtain a reusable active material.

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13-12-2012 дата публикации

METHOD OF PERFORMING BIDIRECTIONAL COMMUNICATION BETWEEN TRANSMITTER AND RECEIVER IN WIRELESS POWER TRANSMISSION/RECEPTION SYSTEM, THE TRANSMITTER, AND THE RECEIVER

Номер: US20120313447A1
Принадлежит: Samsung Electronics Co., Ltd.

A method and apparatus for performing bidirectional communication between a transmitter and a receiver in a wireless power transmission system are provided. The method includes detecting the receiver; transmitting, when the receiver is detected, transmitting a predetermined level of power to the receiver through a transmission (Tx) resonator; receiving a request for transmitting wireless power from the receiver through a wireless communication module; allocating a Short IDentification (SID) and a time slot corresponding to the receiver; transmitting the SID and the time slot to the receiver through the wireless communication module; receiving a request for required power from the receiver through the wireless communication module; determining whether the required power is greater than a residual power of the transmitter; and when the required power is greater than the residual power, informing the receiver through the wireless communication module that the required power cannot be transmitted. 1. A method of performing bidirectional communication by a transmitter in a wireless power transmission/reception system , the method comprising:detecting a receiver;transmitting, when the receiver is detected, a predetermined level of power to the receiver through a transmission (Tx) resonator;receiving a request for transmitting wireless power from the receiver through a wireless communication module;allocating a Short IDentification (SID) and a time slot corresponding to the receiver;transmitting the SID and the time slot to the receiver through the wireless communication module;receiving a request for required power from the receiver through the wireless communication module;determining whether the required power is greater than a residual power of the transmitter; andwhen the required power is greater than the residual power, informing the receiver through the wireless communication module that the required power cannot be transmitted.2. The method as claimed in claim 1 , ...

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21-01-2010 дата публикации

METHOD FOR FABRICATING PRINTED CIRCUIT BOARD

Номер: US20100011573A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method for fabricating a printed circuit board is provided. The method includes manufacturing a base film including a first side and a second side opposite to the first side; printing a first wiring on the first side with a high-viscosity conductive material having a viscosity of 5,000 to 300,000 centipoise (CPS); forming a via-hole that passes through both sides of the base film, and passes by the first wiring; and printing a second wiring on the second side with a low-viscosity conductive material having a viscosity of 100 to 5,000 CPS. The low-viscosity conductive material is applied to an inner wall of the via-hole to conductively connect the first wiring to the second wiring.

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05-08-2014 дата публикации

Wireless charger for charging control and charging control method therefor

Номер: US0008796989B2

A coil structure and a charging control method in a wireless charger having a primary coil are provided to supply an induced electromotive force suitable for a charging target having a secondary coil. Concentric coils having different radii are arranged in a wireless charger, and a coil suitable for the location of a charging target placed on the wireless charger is selected. An input power corresponding to the selected coil is determined, and the determined power is applied to the selected coil. Then the same charging efficiency can be provided irrespective of a location of a charging target placed on the wireless charger.

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23-03-2021 дата публикации

Method and apparatus for transmitting wireless power

Номер: US0010958080B2

A method and apparatus are provided for operating a wireless power transmitter. The method includes controlling the wireless power transmitter to wirelessly transmit power for charging a first power receiver, and while transmitting the power, receiving a search signal from a second power receiver, transmitting a search response signal corresponding to the search signal, and receiving, from the second power receiver, a request join signal including at least one piece of information associated with a power requirement of the second power receiver. Based on identifying that the wireless power transmitter is capable of providing the power having an amount greater than the power requirement of the second power receiver, the method further includes transmitting a charge start command to the second power receiver.

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27-10-2015 дата публикации

Electronic device for reducing interference between a charging coil and an antenna

Номер: US0009172263B2

An electronic device is provided. The electronic device includes a main body including a battery pack and a battery cover; a non-contact near field communication antenna included in the battery pack; and a wireless charging coil portion included in the battery cover and disposed around an outer periphery of the antenna, such that the wireless coil portion does not overlap with the non-contact near field communication antenna.

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07-01-2020 дата публикации

Method for promoting virus infection and increasing virus production, by using cell line having lost BST2 gene functions

Номер: US0010526393B2
Принадлежит: IMMUNOMAX CO., LTD., IMMUNOMAX CO LTD

The present invention relates to a method for promoting virus infection and increasing virus production, by using a cell line having lost Bst2 gene functions and, more specifically, to a method for promoting target virus infection and increasing target virus production, in addition to promoting virus budding and inhibiting host cell apoptosis by removing the Bst2 gene from a cell line having the ability to produce a virus. According to the present invention, the method for promoting target virus infection and increasing target virus production, by using an animal cell line having lost Bst2 gene functions, can improve production yields of a target virus and an antigen protein, and thus can be useful for the preparation of vaccines for treating and preventing viral diseases.

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06-10-2020 дата публикации

Wireless power receiver and controlling method thereof

Номер: US0010797538B2

A method for controlling a wireless power receiver including a charging unit and a wireless power receiver are provided. The method includes receiving wireless power; rectifying the received wireless power and outputting Direct Current (DC) wireless power; and determining whether a voltage of the rectified wireless power is equal to or higher than an allowable voltage of the charging unit.

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29-11-2016 дата публикации

Wireless power receiver and control method thereof

Номер: US0009509151B2

Methods and apparatus are provided for controlling a wireless power receiver for wirelessly receiving power. A drive power for driving the wireless power receiver is received from a wireless power transmitter. A communication network is established with the wireless power transmitter. A wireless power network that is controlled by the wireless power transmitter is joined. A charge power is received from the wireless power transmitter.

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04-02-2020 дата публикации

Apparatus and method for transmitting wireless power

Номер: US0010554051B2

A method and apparatus are provided for determining, by a wireless power transmitter, whether a wireless power receiver is removed from a wireless power network managed by the wireless power transmitter. The method includes transmitting a command signal to report power information of the wireless power receiver at stated periods; determining whether a report signal corresponding to the command signal is received from the wireless power receiver; and determining that the wireless power receiver is removed from the wireless power network, if the report signal is not received after transmitting the command signal a predetermined number of times at the stated periods.

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16-05-2017 дата публикации

Cell strain having increased virus production ability and production method therefor

Номер: US0009650613B2
Принадлежит: IMMUNOMAX CO., LTD., IMMUNOMAX CO LTD

The present invention relates to a cell line having an increased ability to produce virus and a method for preparing thereof, and more particularly, to a cell line that has an increased ability to produce virus, due to the loss of the function of the Bst-2 (tetherin) gene, and to a production method thereof. According to the present invention, a cell line lacking the function of the Bst-2 gene has an excellent ability to produce virus, compared to a wild-type cell line. Thus, when the mutant cell line is used as a virus-producing cell line, the production yield of virus can be increased. In addition, the mutant cell line can be used for the production and research of vaccines for preventing and treating viral diseases.

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10-05-2012 дата публикации

Negative Active Material for Rechargeable Lithium Battery and Rechargeable Lithium Battery Including Same

Номер: US20120115033A1
Принадлежит:

A negative active material for a rechargeable lithium battery includes a core including crystalline carbon, a metal nano particle and a MOx nano particle (where x is from 0.5 to 1.5, and M is Si, Sn, In, Al, or a combination thereof) disposed on the core surface, and a coating layer including an amorphous carbon surrounding the core surface, the metal nano particle and the MOx nano particle. A lithium rechargeable battery includes the negative active material ...

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02-05-2017 дата публикации

Cassette transfer apparatus and cassette transferring method using the same

Номер: US0009640417B2

A cassette transfer apparatus includes a holding unit configured to hold a cassette having a wafer loaded therein, the cassette having at least one stepped part, and the holding unit including at least one holding part configured to have the at least one stepped part placed thereon. The at least one stepped part includes a pair of stepped parts provided at opposite surfaces of the cassette, and the at least one holding part includes a pair of holding parts that extends back and forth and is configured to have the pair of stepped parts placed thereon.

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23-06-2015 дата публикации

Over-voltage protection device for resonant wireless power transmission device and method for controlling the over-voltage protection device

Номер: US0009065276B2

Provided is an over-voltage protection device for a resonant wireless power transmission device. The over-voltage protection device includes an amplifier for amplifying a transmission signal, a resonance signal generator for generating a wireless resonance signal according to the transmission signal amplified by the amplifier, a voltage detector for sensing a voltage of the wireless resonance signal generated by the resonance signal generator, and a controller for monitoring the voltage detected by the voltage detector to determine whether the voltage repetitively increases and decreases with periodicity when the voltage is greater than a reference voltage and controlling the amplifier to decrease an output of the transmission device by a value according to a result of the determination.

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06-10-2020 дата публикации

Power transmitting method and power transmitter for communication with power receiver

Номер: US0010797530B2

A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.

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23-02-2017 дата публикации

WIRELESS POWER RECEIVER AND CONTROL METHOD THEREOF

Номер: US20170054331A1
Принадлежит:

Methods and apparatus are provided for controlling a wireless power receiver for wirelessly receiving power. A drive power for driving the wireless power receiver is received from a wireless power transmitter. A communication network is established with the wireless power transmitter. A wireless power network that is controlled by the wireless power transmitter is joined. A charge power is received from the wireless power transmitter. 1. A method of controlling a wireless power receiver , the method comprising:receiving, from a wireless power transmitter, a first power for initiating a communication unit;establishing a communication connection with the wireless power transmitter while receiving the first power;joining a wireless power network corresponding to the wireless power transmitter while receiving the first power;receiving a command signal indicating a charge start command from the wireless power transmitter; andafter receiving the command signal, receiving, from the wireless power transmitter, a second power for charging the wireless power receiver.2. The method as claimed in claim 1 , wherein establishing the communication connection includes:transmitting a first signal to the wireless power transmitter; andreceiving a second signal corresponding to the first signal from the wireless power transmitter.3. The method as claimed in claim 2 , wherein the first signal comprises information of impedance regarding the wireless power receiver.4. The method as claimed in claim 1 , wherein the joining the wireless power network includes:transmitting a third signal to the wireless power transmitter; andreceiving a fourth signal corresponding to the third signal from the wireless power transmitter.5. The method as claimed in claim 4 ,wherein the third signal comprises at least one of information regarding a Product ID of the wireless power receiver, information regarding a minimum voltage value applied to an input stage of a DC/DC conversion unit of the wireless power ...

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15-11-2016 дата публикации

Apparatus and method for transmitting wireless power by using resonant coupling and system for the same

Номер: US0009496731B2

Disclosed are an apparatus and a method for charging power using a resonant coupling. The apparatus includes a transmission power converter for converting Direct Current (DC) power to Alternating Current (AC) power, a controller for adjusting a Q factor of a transmission resonator by using a frequency of the converted AC power and a resonant frequency of the transmission resonator and controlling adaptive impedance matching, and a transmission resonator for wirelessly transmitting the converted AC power to a receiver through the adjusted Q factor and the controlled adaptive impedance matching, the transmission resonator having a coil installed in the transmitter.

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03-12-2013 дата публикации

Rechargeable lithium battery

Номер: US0008597833B2

A rechargeable lithium battery including: a negative electrode having a composite negative active material of a metal and a carbonaceous material; a positive electrode having a mixed positive active material of about 90 to 99 wt % of a first positive active material selected from cobalt, manganese, phosphate acid-based, or combinations thereof and about 1 to about 10 wt % of a nickel-based second positive active material; and a non-aqueous electrolyte.

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14-03-2013 дата публикации

WIRELESS POWER RECEIVER AND CONTROL METHOD THEREOF

Номер: US20130063082A1
Принадлежит: Samsung Electronics Co., Ltd.

Methods and apparatus are provided for controlling a wireless power receiver for wirelessly receiving power. A drive power for driving the wireless power receiver is received from a wireless power transmitter. A communication network is established with the wireless power transmitter. A wireless power network that is controlled by the wireless power transmitter is joined. A charge power is received from the wireless power transmitter. 1. A method of controlling a wireless power receiver for wirelessly receiving power , the method comprising the steps of:receiving a drive power for driving the wireless power receiver, from one or more wireless power transmitters;determining a wireless power transmitter from which to wirelessly receive power from among the one or more wireless power transmitters;establishing a communication network with the wireless power transmitter from which it was determined to wirelessly receive power;joining a wireless power network that is controlled by the wireless power transmitter; andreceiving a charge power from the wireless power transmitter.2. The method as claimed in claim 1 , wherein determining the wireless power transmitter from which to wirelessly receive power comprises:establishing a scan channel, generating a wireless power transmitter search signal for a wireless power transmitter search, and transmitting the generated wireless power transmitter search signal over the scan channel;receiving a wireless power transmitter search response signal from each of the one or more wireless power transmitters using the scan channel in response to the wireless power transmitter search signal; andparsing each of the wireless power transmitter search response signals to determine the wireless power transmitter from which to wirelessly receive power.3. The method as claimed in claim 2 , wherein establishing the scan channel comprises establishing one of IEEE802.15.4 channel 11 claim 2 , IEEE802.15.4 channel 15 claim 2 , IEEE802.15.4 channel 20 ...

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11-05-2021 дата публикации

Wireless power transmitter, wireless power receiver, and operating method thereof

Номер: US0011005294B2

Provided is a wireless power receiver for wirelessly receiving power from a wireless power transmitter, including a resonator that wirelessly receives power from the wireless power transmitter, a communication module that performs communication with the wireless power transmitter, and a controller that transmits manufacturer information on the wireless power receiver to the wireless power transmitter through the communication module, receives an authority over whether to allow each of at least one function of the wireless power receiver through the communication module, and performs a function allowed for the wireless power receiver based on the authority.

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20-10-2015 дата публикации

Method and apparatus for controlling wireless power transmission

Номер: US0009166446B2

A wireless power transmission controlling apparatus and method are provided. The apparatus includes a power amplifier that receives a source power, amplifies the received source power, and outputs a wireless power transmission signal from the amplified received source power, a band pass filter that filters the wireless power transmission signal, and passes a harmonic wave corresponding to a communication frequency band, and a communication unit that transmits a wireless power transmission control signal using the harmonic wave corresponding to the communication frequency band.

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30-06-2020 дата публикации

Method and apparatus for transmitting wireless power

Номер: US0010700531B2

A method and apparatus are provided for operating a wireless power transmitter. The method includes controlling the wireless power transmitter to wirelessly transmit power for charging a first power receiver, and while transmitting the power, receiving a search signal from a second power receiver, transmitting a search response signal corresponding to the search signal, and receiving, from the second power receiver, a request join signal including at least one piece of information associated with a power requirement of the second power receiver. Based on identifying that the wireless power transmitter is capable of providing the power having an amount greater than the power requirement of the second power receiver, the method further includes transmitting a charge start command to the second power receiver.

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10-08-2021 дата публикации

Portable terminal including multiple coil

Номер: US0011088570B2

A portable terminal is provided. The portable terminal includes a shielding member attached to an inner surface of an external part, a shielding wall formed on the shielding member, a first coil attached to a surface of the shielding member that faces the inner surface of the external part, and a second coil attached to the surface of the shielding member, with the second coil surrounds the first coil on a same plane and the shielding wall being disposed between the first and second coil.

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20-12-2005 дата публикации

Plastic optical fiber and method for producing the same

Номер: US0006978077B2
Автор: Se-Ho Park, PARK SE-HO

A plastic optical fiber and a method for producing the same is disclosed. The plastic optical fiber is formed as a fiber of core-cladding structure. A protective layer or shield layer may be provided on the outer surface of the optical fiber of core-cladding structure for improving thermal resistance of the optical fiber and protecting the optical fiber from air and moisture. The plastic optical fiber uses fluorinated plastic, which contains a rare earth component as a core material, and a cladding material, which does not comprise a rare earth component but essentially consists of a polymer chain, which essentially consists of bonded -[CF2]n- monomers and has a refractive index lower than that of the core material. The optical fiber is produced by a melting-drawing technique.

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17-04-2014 дата публикации

WIRELESS ELECTRIC POWER RECEIVER FOR WIRELESSLY REGULATING ELECTRIC POWER USING SWITCH

Номер: US20140104898A1

A wireless electric power receiver for receiving wireless electric power from a wireless electric transmitter is provided. The wireless electric power receiver includes an electric power receiving unit that receives wireless electric power from the wireless electric power transmitter; a rectifying unit that rectifies wireless electric power in the form of alternating current output from the wireless electric power receiving unit and outputs rectified electric power; and an electric power regulation unit that receives an input of the rectified electric power, outputs first electric power which has a lower value of a first voltage than that of the rectified electric power for a first period, and does not output electric power for a second period, so as to output electric power with a predetermined voltage value. 1. A wireless electric power receiver for receiving wireless electric power from a wireless electric transmitter , the wireless electric power receiver comprising:an electric power receiving unit that receives the wireless electric power from the wireless electric power transmitter;a rectifying unit that rectifies wireless electric power in a form of alternating current output from the wireless electric power receiving unit and outputs rectified electric power; andan electric power regulation unit that receives an input of the rectified electric power, outputs first electric power which has a lower value of a first voltage than that of the rectified electric power for a first period, and does not output electric power for a second period, so as to output electric power with a predetermined voltage value.2. The wireless electric power receiver as claimed in claim 1 , wherein the electric power regulation unit increases impedance of the wireless electric power receiver for the first period.3. The wireless electric power receiver as claimed in claim 1 , wherein the electric power regulation unit controls wireless electric power received from the wireless electric ...

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12-06-2014 дата публикации

PORTABLE TERMINAL HAVING WIRELESS CHARGING MODULE

Номер: US20140159657A1
Принадлежит: Samsung Electronics Co., Ltd.

A portable terminal is provided, including a cover member which is detachably provided at a rear surface of a main body of a terminal, a resonant antenna for a reception unit provided inside of the cover member, a reception circuit unit provided inside of the main body, and a connection unit for connecting the resonant antenna for a reception unit with the reception circuit unit. The portable terminal efficiently receives the signal power provided from a charger by arranging the resonant antenna inside of the cover member, and minimizes the thickness of the portable terminal by providing the reception circuit unit inside of the main body of the terminal. 1. A portable terminal , comprising:a cover member that is detachably provided on a back surface of a body of the portable terminal;a receiving-side resonant antenna provided on an inner surface of the cover member;a receiving circuit unit accommodated inside the body of the portable terminal; anda connection device that electrically connects the receiving-side resonant antenna and the receiving circuit unit.2. The portable terminal of claim 1 , wherein the receiving circuit unit includes a wireless charging circuit.3. The portable terminal of claim 1 , wherein receiving-side resonant antenna is attached to the inner surface of the cover member.4. The portable terminal of claim 1 , wherein the receiving-side resonant antenna is configured as a receiving-side resonator.5. The portable terminal of claim 1 , further comprising a second cover member attached to the cover member and concealing the receiving-side resonant antenna.6. The portable terminal of claim 5 , wherein the second cover member is a shielding member that is interposed between the receiving-side resonant antenna and the body of the portable terminal.7. The portable terminal of claim 1 , wherein the connection device includes:a connection pad fixed to the inner surface of the cover member while being connected to the receiving-side resonant antenna; ...

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02-07-2019 дата публикации

Power transmitting method and power transmitter for communication with power receiver

Номер: US0010340747B2

A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.

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27-09-2012 дата публикации

NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Номер: US20120244428A1
Принадлежит: SAMSUNG, SDI CO., LTD.

A negative electrode for a rechargeable lithium battery, including a negative active material layer including a polymer binder including a repeating unit represented by the following Chemical Formula 1 or the following Chemical Formula 2 and a Si-based negative active material; and a current collector supporting the negative active material layer, is provided: 2. The negative electrode of claim 1 , wherein the Si-based negative active material comprises SiO(0 Подробнее

21-03-2017 дата публикации

Resonance terminal device for resonant wireless power reception system

Номер: US0009601264B2

A shunt capacitor is connected to a wireless charging resonator to prevent harmonics emitted from a power amplifier from radiating to the outside, and at least one circuit having a high impedance relative to a Near Field Wireless Communication (NFC) frequency band is formed at a front side or a rear side of the shunt capacitor for solving the problems of radiating noise components due to wireless charging and of lowering an NFC signal and a power transmission intensity due to a concurrent interference between a wireless charging resonator and an NFC antenna.

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29-06-2021 дата публикации

Wireless charging apparatus and method

Номер: US0011050303B2

Methods and apparatus for wireless charging are provided. Transmission power transmitted from a wireless power transmitter is received at a power receiver of a wireless power receiver. A battery of the wireless power receiver is charged with the received transmission power. It is determined whether the battery is fully charged. A packet from a communication unit of the wireless power receiver is transmitted to the wireless power transmitter when the battery is fully charged. An auxiliary charge of the battery is performed by receiving strength-reduced transmission power from the wireless power transmitter.

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17-04-2014 дата публикации

WIRELESS ELECTRIC POWER RECEIVER FOR WIRELESSLY REGULATING ELECTRIC POWER USING SWITCH

Номер: US20140106826A1

A wireless electric power receiver for receiving wireless electric power from a wireless electric transmitter is provided. The wireless electric power receiver includes an electric power receiving unit that receives wireless electric power from the wireless electric power transmitter; a rectifying unit that rectifies wireless electric power in the form of alternating current output from the wireless electric power receiving unit and outputs rectified electric power; and an electric power regulation unit that receives an input of the rectified electric power, outputs first electric power which has a lower value of a first voltage than that of the rectified electric power for a first period, and does not output electric power for a second period, so as to output electric power with a predetermined voltage value. 1. A wireless electric power receiver for receiving wireless electric power from a wireless electric transmitter , the wireless electric power receiver comprising:an electric power receiving unit that receives the wireless electric power from the wireless electric power transmitter;a rectifying unit that rectifies wireless electric power in the form of alternating current output from the wireless electric power receiving unit and outputs rectified electric power; andan electric power regulation unit that receives an input of the rectified electric power, and outputs first electric power which has a lower value of a first voltage than that of the rectified electric power for a first period while outputting second electric power which has a second voltage of the rectified electric power for a second period, so as to output electric power with a predetermined voltage value.2. The wireless electric power receiver as claimed in claim 1 , wherein the electric power regulation unit increases impedance of the wireless electric power receiver for the first period claim 1 , and reduces impedance of the wireless electric power receiver for the second period.3. The ...

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11-07-2013 дата публикации

OVER-VOLTAGE PROTECTION DEVICE FOR RESONANT WIRELESS POWER TRANSMISSION DEVICE AND METHOD FOR CONTROLLING THE OVER-VOLTAGE PROTECTION DEVICE

Номер: US20130176652A1
Принадлежит: Samsung Electronics Co., Ltd.

Provided is an over-voltage protection device for a resonant wireless power transmission device. The over-voltage protection device includes an amplifier for amplifying a transmission signal, a resonance signal generator for generating a wireless resonance signal according to the transmission signal amplified by the amplifier, a voltage detector for sensing a voltage of the wireless resonance signal generated by the resonance signal generator, and a controller for monitoring the voltage detected by the voltage detector to determine whether the voltage repetitively increases and decreases with periodicity when the voltage is greater than a reference voltage and controlling the amplifier to decrease an output of the transmission device by a value according to a result of the determination.

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04-09-2018 дата публикации

Wireless power receiver for adjusting magnitude of wireless power

Номер: US0010069340B2

A wireless power receiver for wirelessly receiving power from a wireless power supplier includes a power receiver for receiving wireless power from the wireless power supplier and storing the wireless power for a first time period, a rectifier connected to the power receiver for rectifying the wireless power, a power adjuster connected to the rectifier and an output end, for adjusting a magnitude of the wireless power by enabling the power receiver to store the wireless power for the first time period and delivering the wireless power to the output end for a second time period, and a controller for determining the first and second time periods.

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07-12-2021 дата публикации

Power transmitting method and power transmitter for communication with power receiver

Номер: US0011192460B2

A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.

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30-08-2016 дата публикации

Method and apparatus for protecting wireless power receiver from excessive charging temperature

Номер: US0009431848B2

An apparatus and a method for protecting a wireless power receiver from excessive temperature caused by charging are provided. The wireless power receiver includes a power receiver for receiving wireless power in an Alternate Current (AC) form from a wireless power transmitter; a regulator for regulating the wireless power; a power management unit for controlling charging by providing the regulated wireless power to a battery; a temperature measurement unit for measuring a temperature of a point in the wireless power receiver during reception of the wireless power; and a controller configured to provide a control signal for the wireless power receiver to be charged with a regulated charging power if a temperature measured by the temperature measurement unit exceeds a preset temperature.

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03-10-2017 дата публикации

Wireless power receiver and method for controlling the same

Номер: US0009780568B2

A wireless power receiver that receives wireless power from a wireless power transmitter and a control method thereof are provided, wherein the wireless power receiver receives the wireless power from the wireless power transmitter; rectifies the wireless power; monitoring a voltage value of the rectified wireless power; determines whether a ripple of the voltage value of the wireless power is greater than or equal to a preset threshold; and if the ripple of the voltage value of the wireless power is greater than or equal to the preset threshold, changes at least one element value of the wireless power receiver to suppress the ripple below the preset threshold.

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20-06-2013 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING WIRELESS POWER

Номер: US20130154557A1
Принадлежит: Samsung Electronics Co., Ltd.

A method and apparatus are provided for transmitting wireless power to a wireless power receiver. The method includes detecting wireless power receiver within a service area of a wireless power transmitter; transmitting driving power for driving the wireless power receiver; joining the wireless power receiver in a wireless power network managed by the wireless power transmitter; and transmitting charging power to the wireless power receiver. 1. A method for transmitting wireless power to a wireless power receiver by a wireless power transmitter , the method comprising:detecting the wireless power receiver;transmitting driving power for driving the wireless power receiver;joining the wireless power receiver in a wireless power network managed by the wireless power transmitter; andtransmitting charging power to the wireless power receiver.2. The method of claim 1 , further comprising forming a communication network with the wireless power receiver.3. The method of claim 2 , wherein forming the communication network with the wireless power receiver comprises:receiving a wireless power transmitter search signal from the wireless power receiver; andtransmitting a wireless power transmitter search response signal in response to the wireless power transmitter search signal.4. The method of claim 3 , wherein the wireless power transmitter search signal includes at least one of a protocol version claim 3 , a sequence number claim 3 , company information claim 3 , product information claim 3 , impedance information claim 3 , and capacity information.5. The method of claim 3 , wherein the wireless power transmitter search response signal includes at least one of a sequence number claim 3 , and network IDentifier (ID) information of the wireless power transmitter.6. The method of claim 2 , wherein joining the wireless power receiver in the wireless power network comprises:receiving a request join signal from the wireless power receiver;determining whether to permit the wireless ...

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05-12-2017 дата публикации

Portable terminal having a wireless charging module

Номер: US0009837863B2

A portable terminal is provided. The portable terminal includes a back surface on which a battery-mounting groove is formed; and a receiving-side resonant antenna arranged around the battery-mounting groove on the body. The receiving-side resonant antenna is arranged parallel to at least three sides of the battery-mounting groove.

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23-01-2018 дата публикации

Method and power transmitter for controlling power transmission

Номер: US0009876378B2

Methods and apparatus are provided for controlling power transmission. A minimum voltage and a maximum voltage receivable at the at least one power receiver, a reference voltage used to divide a range between the minimum voltage and the maximum voltage, and a demanded voltage required by the at least one power receiver, are received from at least one power receiver. A report about a power reception condition is received from the at least one power receiver. The report includes a measured voltage at the at least one power receiver during power transmission from the power transmitter. It is determined whether the measured voltage is between the minimum voltage and the reference voltage. Power is adjusted and supplied when the measured voltage is not between the minimum voltage and the reference voltage.

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30-05-2017 дата публикации

Rechargeable lithium battery and method of preparing same

Номер: US0009666900B2
Автор: Se-Ho Park
Принадлежит: Samsung SDI Co., Ltd.

A rechargeable lithium battery and a method of preparing the same are described. The rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and a liquid electrolyte including a lithium salt and a non-aqueous organic solvent. A separator is interposed between the negative electrode and positive electrode and includes a support. A fluoro-based polymer layer is positioned on both sides of the support. The positive electrode includes the positive active material in an amount from about 30 to about 70 mg/cm2.

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02-10-2018 дата публикации

Rechargeable lithium battery and method of preparing same

Номер: US0010090563B2
Принадлежит: Samsung SDI Co., Ltd., SAMSUNG SDI CO LTD

A rechargeable lithium battery and a method of preparing the same are described. The rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and a liquid electrolyte including a lithium salt and a non-aqueous organic solvent. A separator is interposed between the negative electrode and positive electrode and includes a support. A fluoro-based polymer layer is positioned on both sides of the support. The positive electrode includes the positive active material in an amount from about 30 to about 70 mg/cm2.

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23-08-2016 дата публикации

Wireless power receiver

Номер: US0009425629B2

A wireless power receiver is provided for wirelessly receiving driving power from a wireless power transmitter. The wireless power receiver includes a power reception unit for wirelessly receiving the driving power from the wireless power transmitter. The wireless power receiver also includes a rectifier for rectifying the driving power from the power reception unit into a Direct Current (DC) power type. The wireless power receiver additionally includes a load unit for storing the rectified driving power from the rectifier. The wireless power receiver further includes a controller for detecting an amount of the rectified driving power stored in the load unit to control output from the rectifier to the load unit. The wireless power receiver also includes an impedance adjuster for adjusting an impedance in the power reception unit according to the amount of the rectified driving power stored in the load unit.

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26-12-2017 дата публикации

Negative electrode for rechargeable lithium battery, method of preparing same and rechargeable lithium battery including same

Номер: US0009853291B2

A negative electrode for a rechargeable lithium battery, including a negative active material layer including a polymer binder including a repeating unit represented by the following Chemical Formula 1 or the following Chemical Formula 2 and a Si-based negative active material; and a current collector supporting the negative active material layer, is provided: wherein in Chemical Formulae 1 and 2, R1and R2are the same or different and hydrogen, OH or OOH.

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31-01-2017 дата публикации

Power transmitter and method for controlling power transmission

Номер: US0009558883B2

Methods and apparatus are provided for detecting a non-intended object of power reception by a power transmitter. Power transmission for communication is performed, when the load change is sensed that has a value greater than or equal to a predetermined threshold. It is determined whether a subscription request, for subscribing to a network is received within a predetermined time period. The power transmission for communication is stopped when the subscription request is not received within the predetermined time period. Power is transmitted to a power receiver that has transmitted the subscription request, when the subscription request is received within the predetermined time period. It is determined whether a leakage power value exceeds an allowable range, when the power state report is received from the power receiver. The transmission of the power to the power receiver is stopped, when the leakage power value exceeds the allowable range.

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31-05-2016 дата публикации

Wireless power receiver and control method of same

Номер: US0009356475B2

A wireless power receiver is provided that includes a communication unit for receiving wireless power and a communication signal from a wireless power supplier; a controller for determining whether the wireless power is received from the wireless power supplier; a loader for storing the wireless power; and a switching unit for, when the wireless power is received, dividing the wireless power and the communication signal by a predetermined ratio and transferring the divided power to the controller and the loader based on the predetermined ratio.

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18-06-2019 дата публикации

Wireless power system comprising power transmitter and power receiver and method for receiving and transmitting power of the apparatuses

Номер: US0010326309B2

Provided is a transmitter in a wireless power transmission system, the transmitter including a Transmission (Tx) power converter for converting a Direct Current (DC) voltage into a first Alternating Current (AC) voltage, and converting the converted first AC voltage into a second AC voltage by amplifying the converted first AC voltage, a Tx matching circuit for matching an impedance thereof with that of a receiver for receiving the second AC voltage to transmit the second AC voltage, a Tx resonator for resonating the second AC voltage into resonant waves to transmit the second AC voltage to the receiver, and a Tx controller for determining an amplification rate of the first AC voltage and controlling the Tx power converter to convert the first AC voltage into the second AC voltage according to the determined amplification rate.

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15-08-2017 дата публикации

Power transmitting method and power transmitter for communication with power receiver

Номер: US0009735623B2

A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.

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23-11-2021 дата публикации

Method and apparatus for protecting wireless power receiver from excessive charging temperature

Номер: US0011183884B2

An apparatus and a method for are provided for a wireless power receiver. The method includes receiving power from a wireless power transmitter; converting the power in an alternating current (AC) form into a direct current (DC) form and providing the converted power to a battery of the electronic device; measuring a temperature of a point in the wireless power receiver during reception of the wireless power; maintaining an amount of the converted power at a first level if the temperature is lower than a first temperature; decreasing the amount of the converted power to a second level which is lower than the first level if the amount of the converted power is at the first level and the temperature is higher than or equal to the first temperature; stopping providing the converted power to the battery if the temperature is higher than a second temperature; and transmitting, to the wireless power transmitter, a signal including status information of the wireless power receiver device and control ...

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21-04-2020 дата публикации

Portable terminal having a wireless charger coil and antenna element

Номер: US0010630107B2

A portable terminal is provided. The portable terminal includes a shielding member attached to an inner surface of an external part, a shielding wall formed on the shielding member, a first coil attached to a surface of the shielding member that faces the inner surface of the external part, and a second coil attached to the surface of the shielding member, with the second coil surrounds the first coil on a same plane and the shielding wall being disposed between the first and second coil.

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16-07-2013 дата публикации

Internal antenna and portable communication terminal using the same

Номер: US0008487818B2

An internal antenna is provided that includes a first antenna having a first antenna pattern formed on a first dielectric layer, and a second antenna having a second antenna pattern formed on a second dielectric layer. The second dielectric layer has a higher dielectric constant than the first dielectric layer. The first and second antenna patterns are electrically connected to each other.

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31-08-2021 дата публикации

Electronic device including multiple coils

Номер: US0011108271B2

A portable terminal is provided. The portable terminal includes a shielding member attached to an inner surface of an external part, a shielding wall formed on the shielding member, a first coil attached to a surface of the shielding member that faces the inner surface of the external part, and a second coil attached to the surface of the shielding member, with the second coil surrounds the first coil on a same plane and the shielding wall being disposed between the first and second coil.

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07-11-2017 дата публикации

Wireless power receiver

Номер: US0009812893B2

A wireless power receiver for wirelessly receiving driving power from a wireless power transmitter and a method for wirelessly receiving charging power at a wireless power receiver from a wireless power transmitter are provided. The wireless power receiver includes a power reception unit configured to wirelessly receive the charging power from the wireless power transmitter; a rectifier configured to rectify the charging power from the power reception unit; a load unit configured to store the rectified charging power from the rectifier; and a controller configured to detect a change of a charging mode for the load unit, and control to adjust an impedance in the power reception unit according to the change of the charging mode.

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14-01-2014 дата публикации

Large capacity memory module mounting device for portable terminal

Номер: US0008630096B2

A large capacity memory module mounting device employed in a portable terminal is provided, including a large capacity memory module including a plurality of first contact pads; and a flexible circuit board including a plurality of second contact pads and electrically connected to the large capacity memory module by forming solder pads in a heating process after the first and second contact pads are positioned in a face-to-face manner. Accordingly, the large capacity memory module can be advantageously mounted to the portable terminal and an electromagnetic field can be effectively shielded.

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09-11-2017 дата публикации

WIRELESS POWER TRANSMITTER, WIRELESS POWER RECEIVER, AND OPERATING METHOD THEREOF

Номер: US20170324279A1
Принадлежит:

Provided is a wireless power receiver for wirelessly receiving power from a wireless power transmitter, including a resonator that wirelessly receives power from the wireless power transmitter, a communication module that performs communication with the wireless power transmitter, and a controller that transmits manufacturer information on the wireless power receiver to the wireless power transmitter through the communication module, receives an authority over whether to allow each of at least one function of the wireless power receiver through the communication module, and performs a function allowed for the wireless power receiver based on the authority.

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09-06-2015 дата публикации

Communication method and apparatus in wireless recharging system

Номер: US0009054547B2

A method of performing communication between a wireless power transmitter and a wireless power receiver, which includes performing load detection by detecting wireless power provided by the wireless power transmitter being applied to the wireless power receiver; setting up a common channel having a predetermined first frequency for establishing a connection with the wireless power receiver, which is performed by the wireless power transmitter; establishing the connection with the wireless power receiver using the common channel; determining, from among available channels, a selection channel having an optimal condition for communicating with the wireless power receiver and a predetermined second frequency through use of the common channel; and performing data transmission and reception with the wireless power receiver through the selection channel.

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16-05-2013 дата публикации

WIRELESS POWER RECEIVER AND CONTROL METHOD OF SAME

Номер: US20130119780A1
Принадлежит: Samsung Electronics Co., Ltd.

A wireless power receiver is provided that includes a communication unit for receiving wireless power and a communication signal from a wireless power supplier; a controller for determining whether the wireless power is received from the wireless power supplier; a loader for storing the wireless power; and a switching unit for, when the wireless power is received, dividing the wireless power and the communication signal by a predetermined ratio and transferring the divided power to the controller and the loader based on the predetermined ratio. 1. A wireless power receiver comprising:a communication unit for receiving wireless power and a communication signal from a wireless power supplier, wherein the received wireless power and received communication signal power are a total input power;a controller for determining whether the wireless power is received from the wireless power supplier;a loader for storing the received wireless power; anda switching unit for, when the wireless power is determined to have been received dividing the total input power by a predetermined ratio and transferring the divided power to the controller and the loader, based on the predetermined ratio.2. The wireless power receiver of claim 1 , wherein the switching unit comprises:a first switch for switching between the communication unit and the controller; anda second switch for switching the controller;wherein the first switch and the second switch are connected in parallel.3. The wireless power receiver of claim 2 , wherein claim 2 , when the communication unit simultaneously receives the wireless power and the communication signal claim 2 , the controller opens the first switch and closes the second switch.4. The wireless power receiver of claim 3 , wherein the second switch outputs the total input power to the controller and the communication unit according to the predetermined ratio.5. The wireless power receiver of claim 2 , wherein claim 2 , when the communication unit receives only ...

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07-06-2018 дата публикации

METHOD AND POWER TRANSMITTER FOR CONTROLLING POWER TRANSMISSION

Номер: US20180159356A1
Принадлежит:

Methods and apparatuses are provided for controlling power transmission in a power transmitter. A first message including a first voltage and a second voltage that is greater than the first voltage, is received from at least one power receiver. Power is transmitted to the at least one power receiver. A second message including a third voltage measured at the at least one power receiver during power transmission from the power transmitter, is received from the at least one power receiver. An amount of the power is adjusted based on whether the third voltage is between the first voltage and the second voltage. The first voltage is a minimum voltage for the at least one power receiver. 1. A method of controlling power transmission in a power transmitter , the method comprising:receiving, from at least one power receiver, a first message including a first voltage and a second voltage that is greater than the first voltage;transmitting power to the at least one power receiver;receiving, from the at least one power receiver, a second message including a third voltage measured at the at least one power receiver during power transmission from the power transmitter; andadjusting an amount of the power based on whether the third voltage is between the first voltage and the second voltage,wherein the first voltage is a minimum voltage for the at least one power receiver.2. The method of claim 1 , wherein adjusting the amount of the power comprises:decreasing the amount of the power, if the third voltage is greater than the second voltage, and increasing the amount of the power, if the third voltage is lower than the first voltage.3. The method of claim 1 , further comprising stopping the power transmission claim 1 , if the third voltage is greater than a predetermined value.4. The method of claim 1 , wherein the second voltage is a reference voltage for determining a voltage region having a charging efficiency greater than a threshold value.5. The method of claim 1 , wherein ...

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26-04-2012 дата публикации

Wireless charging method and apparatus

Номер: US20120098485A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A wireless charging method includes synchronizing power phases of at least two charging power supply devices, and wirelessly charging a terminal using the at least two charging power supply devices.

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22-11-2012 дата публикации

POWER TRANSMITTING METHOD AND POWER TRANSMITTER FOR COMMUNICATION WITH POWER RECEIVER

Номер: US20120293007A1
Принадлежит: Samsung Electronics Co., Ltd

A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target. 1. A method of controlling power transmission for communication with at least one power receiver by a power transmitter , the method comprising:performing, when a predetermined measurement cycle arrives, a load measurement;comparing a current load measurement value corresponding to the load measurement with a previous load measurement value;determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold;gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; andstopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.2. The method as ...

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22-11-2012 дата публикации

WIRELESS POWER RECEIVER AND METHOD FOR CONTROLLING THE SAME

Номер: US20120293008A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A wireless power receiver that receives wireless power from a wireless power transmitter and a control method thereof are provided, wherein the wireless power receiver receives the wireless power from the wireless power transmitter; rectifies the wireless power; monitoring a voltage value of the rectified wireless power; determines whether a ripple of the voltage value of the wireless power is greater than or equal to a preset threshold; and if the ripple of the voltage value of the wireless power is greater than or equal to the preset threshold, changes at least one element value of the wireless power receiver to suppress the ripple below the preset threshold. 1. A control method in a wireless power receiver that receives wireless power from a wireless power transmitter , the method comprising:receiving the wireless power from the wireless power transmitter;rectifying the wireless power;monitoring a voltage value of the rectified wireless power;determining whether a ripple of the voltage value of the rectified wireless power is greater than or equal to a preset threshold; andif the ripple of the voltage value of the wireless power is greater than or equal to the preset threshold, changing at least one element value of the wireless power receiver to suppress the ripple below the preset threshold.2. The control method of claim 1 , further comprising outputting the rectified wireless power in a form of Direct Current (DC)3. The control method of claim 1 , further comprising modulating the rectified wireless power.4. The control method of claim 3 , wherein the rectified wireless power is modulated based on a resistive load modulation scheme.5. The control method of claim 3 , wherein the rectified wireless power is modulated based on a capacitive load modulation scheme.6. The control method of claim 1 , wherein changing the at least one element value comprises changing a resistance of a variable resistor.7. The control method of claim 1 , wherein changing the at least ...

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22-11-2012 дата публикации

Method and apparatus for controlling wireless power transmission

Номер: US20120293010A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A wireless power transmission controlling apparatus and method are provided. The apparatus includes a power amplifier that receives a source power, amplifies the received source power, and outputs a wireless power transmission signal from the amplified received source power, a band pass filter that filters the wireless power transmission signal, and passes a harmonic wave corresponding to a communication frequency band, and a communication unit that transmits a wireless power transmission control signal using the harmonic wave corresponding to the communication frequency band.

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22-11-2012 дата публикации

Power transmitting and receiving apparatus and method for performing a wireless multi-power transmission

Номер: US20120293011A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An apparatus and method are provided for transmitting and receiving power for wireless power transmission. A power transmitting apparatus includes a power supplier for generating power; a resonator for transmitting the power generated by the power supplier to a plurality of power receiving apparatuses; and a controller for determining whether a power transmission to a new power receiving apparatus is possible using a power receiving apparatus management table, when the new power receiving apparatus is detected while the power transmissions of the plurality of power receiving apparatuses are being performed, and controlling the resonator to transmit power to the new power receiving apparatus, when the power transmission to the new receiving apparatus is possible. The power transmitting apparatus stably supplies power to a plurality of power receiving apparatuses by determining power transmission states of the plurality of power receiving apparatuses.

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22-11-2012 дата публикации

Wireless charging apparatus and method

Номер: US20120293119A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Methods and apparatus for wireless charging are provided. Transmission power transmitted from a wireless power transmitter is received at a power receiver of a wireless power receiver. A battery of the wireless power receiver is charged with the received transmission power. It is determined whether the battery is fully charged. A packet from a communication unit of the wireless power receiver is transmitted to the wireless power transmitter when the battery is fully charged. An auxiliary charge of the battery is performed by receiving strength-reduced transmission power from the wireless power transmitter.

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06-12-2012 дата публикации

WIRELESS POWER SYSTEM COMPRISING POWER TRANSMITTER AND POWER RECEIVER AND METHOD FOR RECEIVING AND TRANSMITTING POWER OF THE APPARATUSES

Номер: US20120306284A1
Принадлежит:

Provided is a transmitter in a wireless power transmission system, the transmitter including a Transmission (Tx) power converter for converting a Direct Current (DC) voltage into a first Alternating Current (AC) voltage, and converting the converted first AC voltage into a second AC voltage by amplifying the converted first AC voltage, a Tx matching circuit for matching an impedance thereof with that of a receiver for receiving the second AC voltage to transmit the second AC voltage, a Tx resonator for resonating the second AC voltage into resonant waves to transmit the second AC voltage to the receiver, and a Tx controller for determining an amplification rate of the first AC voltage and controlling the Tx power converter to convert the first AC voltage into the second AC voltage according to the determined amplification rate. 1. A transmitter in a wireless power transmission system , the transmitter comprising:a Transmission (Tx) power converter for converting a Direct Current (DC) voltage into a first Alternating Current (AC) voltage, and converting the converted first AC voltage into a second AC voltage by amplifying the converted first AC voltage;a Tx matching circuit for matching an impedance thereof with that of a receiver for receiving the second AC voltage to transmit the second AC voltage;a Tx resonator for resonating the second AC voltage into resonant waves to transmit the second AC voltage to the receiver; anda Tx controller for determining an amplification rate of the first AC voltage and controlling the Tx power converter to convert the first AC voltage into the second AC voltage according to the determined amplification rate.2. A receiver in a wireless power transmission system , the receiver comprising:a Reception (Rx) resonator for receiving an Alternating Current (AC) voltage resonated as resonant waves by a transmitter;an Rx matching circuit for matching an impedance thereof with that of the transmitter to receive the AC voltage from the ...

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13-12-2012 дата публикации

METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER OF A RECEIVER IN A WIRELESS POWER TRANSMISSION/RECEPTION SYSTEM

Номер: US20120313446A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method and apparatus are provided for controlling power of a receiver in a wireless power transmission/reception system, wherein a wireless power quantity supplied to receivers from a transmitter is controlled through communication between the receivers. The method includes receiving required power information transmitted from a joining receiver in a charging area of a transmitter; determining whether the transmitter is capable of supplying required power to the joining receiver based on the required power information; and requesting the joining receiver to maintain a standby state, when the transmitter is not capable of supplying the required power to the joining receiver. 1. A method for controlling wireless power of a receiver in a wireless power transmission and reception system , the method comprising:receiving required power information transmitted from a joining receiver in a charging area of a transmitter;determining whether the transmitter is capable of supplying required power to the joining receiver based on the required power information; andrequesting the joining receiver to maintain a standby state, when the transmitter is not capable of supplying the required power to the joining receiver.2. The method of claim 1 , further comprising receiving charging power information from a registered receiver included in the charging area.3. The method of claim 2 , wherein determining whether the transmitter is capable of supplying the required power to the joining receiver comprises:calculating remaining power of the transmitter based on the charging power information; anddetermining whether the remaining power is larger than the required power.4. The method of claim 3 , further comprising determining that the transmitter is capable of supplying the required power to the joining receiver claim 3 , when the remaining power is larger than the required power.5. The method of claim 3 , further comprising determining that the transmitter is not capable of supplying ...

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14-02-2013 дата публикации

PORTABLE TERMINAL HAVING A WIRELESS CHARGER COIL AND AN ANTENNA ELEMENT ON THE SAME PLANE

Номер: US20130038278A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A portable terminal having a wireless charger coil and an antenna element on the same plane is provided, in which a shielding member is attached to an inner surface of an external part, a first coil is attached to one surface of the shielding member, facing the inner surface of the external part, and a second coil is attached to the one surface of the shielding member, surrounding the first coil on the same plane. 1. A portable terminal comprising:a shielding member attached to an inner surface of an external part;a first coil attached to a surface of the shielding member that faces the inner surface of the external part; anda second coil attached to the surface of the shielding member, wherein the second coil surrounds the first coil on a same plane.2. The portable terminal of claim 1 , wherein the first coil is a secondary coil for inductive coupling with a charger and the second coil is an antenna element.3. The portable terminal of claim 1 , wherein the first coil is an antenna element and the second coil is a secondary coil for inductive coupling with a charger.4. The portable terminal of claim 1 , further comprising a battery mounting recess formed on a housing of the portable terminal claim 1 , wherein the external part is a battery cover detachably engaged with the housing claim 1 , for opening or covering the battery mounting recess.51. The portable terminal of claim 1 , wherein a battery pack connected to the first coil is accommodated in the portable terminal and the first coil is a secondary coil for inductive coupling with a charger claim 1 , connected to the battery pack.6. The portable terminal of claim 1 , wherein the second coil is a Near Field Communication (NFC) antenna element.7. The portable terminal of claim 1 , further comprising an NFC control circuit built in the portable terminal claim 1 , wherein one of the first and second coils is connected to a communication circuit of the portable terminal through the NFC control circuit.8. The ...

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21-02-2013 дата публикации

WIRELESS POWER RECEIVER FOR CONTROLLING WIRELESS POWER BY USING SWITCH

Номер: US20130043737A1
Принадлежит:

A wireless power receiver for wirelessly receiving a supply of power from a wireless power supplier is disclosed. The wireless power receiver includes a power reception unit for wirelessly receiving wireless power from the wireless power supplier; a rectifier for rectifying the wireless power into power including a DC waveform; a power adjustor for configuring a closed loop with the power reception unit for a first period and transferring the wireless power to the rectifier for a second period to adjust a size of the wireless power; and a controller for determining the first period and the second period, wherein the power adjustor is electrically connected to the power reception unit and the rectifier. 1. A wireless power receiver for wirelessly receiving a supply of power from a wireless power supplier , the wireless power receiver comprising:a power reception unit for wirelessly receiving wireless power from the wireless power supplier;a rectifier for rectifying the wireless power into power including a DC waveform;a power adjustor for configuring a closed loop with the power reception unit for a first period and transferring the wireless power to the rectifier for a second period to adjust a size of the wireless power,; anda controller for determining the first period and the second period,wherein the power adjustor is electrically connected to the power reception unit and the rectifier.2. The wireless power receiver of claim 1 , wherein the power adjustor comprises:a power storage unit for storing the wireless power for the first period,; anda switch unit for connecting the power reception unit and the power storage unit through short-circuiting for the first period and connecting the power reception unit and the rectifier through disconnection for the second period,wherein the power storage unit is connected to the power reception unit in series.3. The wireless power receiver of claim 2 , wherein the power storage unit comprises an inductor and a capacitor ...

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07-03-2013 дата публикации

Apparatus and method of controlling wireless power transmission

Номер: US20130057079A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An apparatus for controlling wireless power transmission includes a near-field wireless communication antenna for receiving wireless power transmission control signals from a power transmitting device at a communication frequency, a near-field wireless communication Integrated Circuit (IC) for delivering wireless power transmission control messages based on the wireless power transmission control signals received through the near-field wireless communication antenna to a power IC, a Wireless Power Transmission (WPT) coil for resonating at a frequency band corresponding to a resonant frequency of the power transmitting device, to receive power supplied from the power transmitting device, and the power IC for controlling output of a constant voltage, using the supply power received by the WPT coil, based on the wireless power transmission control messages from the near-field wireless communication IC.

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14-03-2013 дата публикации

NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY COMPRISING SAME

Номер: US20130065131A1
Принадлежит: Samsung SDI Co., Ltd.

A negative active material for a rechargeable lithium battery includes: a crystalline carbon core including pores; an amorphous carbon shell positioned on the core surface; metal nanoparticles dispersed inside the pores; and amorphous carbon inside the pores, wherein a first particle diameter difference (D50−D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90−D50) of the nanoparticles is from about 440 to about 520 nm. 1. A negative active material for a rechargeable lithium battery , comprising:a crystalline carbon core including pores;an amorphous carbon shell positioned on a surface of the core;metal nanoparticles dispersed inside the pores and on the surface of the core;amorphous carbon inside the pores,wherein a first particle diameter difference (D50−D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90−D50) of the nanoparticles is from about 440 to about 520 nm.2. The negative active material of claim 1 , wherein the metal nanoparticles have an average particle diameter of from about 100 to about 500 nm.3. The negative active material of claim 1 , wherein the metal nanoparticles comprise at least one selected from the group consisting of Si claim 1 , a Si—Y alloy claim 1 , Sn claim 1 , a Sn-Q alloy claim 1 , Al claim 1 , Ga claim 1 , In claim 1 , Pb claim 1 , As claim 1 , Sb claim 1 , Ag claim 1 , and combinations thereof;wherein Y and Q are each independently an element selected from the group consisting of an alkali metal, an alkaline-earth metal, a group 13 element, a group 14 element, a transition element, a rare earth element, and combinations thereof,wherein Y is not Si; andwherein Q is not Sn.4. The negative active material of claim 1 , wherein the pores include closed pores not connected to the shell and open pores connected to the shell.5. The negative active material of claim 1 , wherein the pores include closed pores not connected to the ...

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04-04-2013 дата публикации

APPARATUS AND METHOD FOR WIRELESS CHARGING

Номер: US20130082651A1
Автор: Lee Young-Min, Park Se-Ho
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Methods and apparatus are provided for wireless charging. Wireless power is supplied by a wireless power supply apparatus and is received at a wireless power reception apparatus. Wireless charging is performed by the wireless power reception apparatus. It is determined whether a human body is approaching while the wireless power reception power apparatus is receiving the wireless power. The wireless charging is interrupted, when it is determined that the human body is approaching. 1. A method of wireless charging , the method comprising the steps of:receiving wireless power at a wireless power reception apparatus and performing wireless charging by the wireless power reception apparatus;determining whether a human body is approaching the wireless power reception apparatus while the wireless power reception power apparatus is receiving the wireless power; andinterrupting the wireless charging, when it is determined that the human body is approaching the wireless power reception apparatus.2. The method of claim 1 , wherein interrupting the wireless charging comprises:transmitting a wireless power interruption request signal from the wireless power reception apparatus to a wireless power supply apparatus.3. A method of wireless charging claim 1 , the method comprising the steps of:supplying wireless power by a wireless power supply apparatus;determining whether a human body is approaching the wireless supply reception apparatus while the wireless power supply apparatus is supplying the wireless power; andinterrupting the wireless charging, when it is determined that the human body is approaching the wireless power supply apparatus.4. The method of claim 3 , wherein interrupting the wireless charging comprises:transmitting a wireless power interruption signal from the wireless power supply apparatus to a wireless power reception apparatus.5. An apparatus for wireless charging claim 3 , the apparatus comprising:a power receiver for receiving a supply power through ...

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25-04-2013 дата публикации

WIRELESS POWER TRANSMITTER AND METHOD OF CONTROLLING THE SAME

Номер: US20130099733A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method and a wireless power transmitter for transmitting charging power to a wireless power receiver are provided. The method includes applying the charging power to the wireless power receiver; determining whether a current value of the charging power is greater than a predetermined threshold; and driving the overcurrent protection circuit upon a determination that the current value of the charging power is greater than the predetermined threshold. 1. A wireless power transmitter for transmitting charging power to a wireless power receiver , the wireless power transmitter comprising:a power supply for supplying the charging power;a power transmitter for transmitting the charging power to the wireless power receiver;an overcurrent protection circuit for changing an impedance of the wireless power transmitter to prevent a current value of the charging power from exceeding a predetermined threshold; anda controller for determining whether the current value of the charging power is greater than the predetermined threshold and controlling to connect the overcurrent protection circuit to the power transmitter upon a determination that the current value of the charging power is greater than the predetermined threshold.2. The wireless power transmitter of claim 1 , wherein the overcurrent protection circuit includes at least one element of a capacitor claim 1 , a coil claim 1 , and a resistor.3. The wireless power transmitter of claim 2 , wherein the overcurrent protection circuit further includes a first switch connected between the controller and the overcurrent protection circuit and a second switch connected between the overcurrent protection circuit and the power transmitter.4. The wireless power transmitter of claim 3 , wherein the controller controls the first and second switches to be in an “ON” state if the current value of the charging power is greater than the predetermined threshold.5. The wireless power transmitter of claim 4 , wherein the controller ...

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23-05-2013 дата публикации

APPARATUS AND METHOD FOR CONTROLLING CHARGING POWER OF WIRELESS POWER RECEIVER

Номер: US20130127410A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

In an apparatus for adjusting charging power of a wireless power receiver, when one or more wireless power receivers require charging, it is determined whether the sum of required charging powers required by the one or more wireless power receivers exceeds maximum supplied power provided by a wireless power transmitter. When a result indicates that the sum exceeds the maximum supplied power, a control operation is performed to adjust the required charging power of each wireless power receiver. Therefore, it is possible to wirelessly charge each wireless power receiver without interruption. 1. A transmission apparatus for adjusting charging power of a wireless power receiver , the transmission apparatus comprising:a power supply unit which outputs a power signal; anda transmission controller which calculates a sum of required charging powers of one or more wireless power receivers when a data signal for wireless charging is received from the one or more wireless power receivers, and generates a charging power adjustment signal for adjusting the required charging power of each of the one or more wireless power receivers and transmitting the generated charging power adjustment signal to each of the one or more wireless power receivers, when the calculated sum exceeds maximum supplied power capable of being supplied by the transmission apparatus.2. The transmission apparatus of claim 1 , wherein the data signal includes identification information and characteristic information of each of the one or more wireless power receivers.3. The transmission apparatus of claim 2 , wherein the characteristic information includes information on total power of the one or more wireless power receivers.4. The transmission apparatus of claim 3 , wherein the transmission controller calculates a sum of maximum charging powers in a constant current mode for the one or more wireless power receivers by using the characteristic information claim 3 , and determines whether the calculated sum ...

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20-06-2013 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING WIRELESS POWER

Номер: US20130154387A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method and a wireless power transmitter are provided for transmitting wireless power to at least one wireless power receiver. The method includes setting, by the wireless power transmitter, a search channel to be used for communication with the at least one wireless power receiver; detecting at least one of an energy level and a Received Signal Strength Indication (RSSI) value of a signal received on the search channel; and determining whether to designate the search channel as a communication channel based on the detection results. 1. A method of a wireless power transmitter for transmitting wireless power to at least one wireless power receiver , the method comprising:setting, by the wireless power transmitter, a search channel to be used for communication with the at least one wireless power receiver;detecting at least one of an energy level and a Received Signal Strength Indication (RSSI) value of a signal received on the search channel; anddetermining whether to designate the search channel as a communication channel based on the detection results.2. The method of claim 1 , wherein determining whether to designate the search channel comprises:determining whether the at least one of the energy level and the RSSI value of the received signal is less than a predetermined threshold; anddesignating the search channel as the communication channel, when the at least one of the energy level and the RSSI value is less than the predetermined threshold.3. The method of claim 2 , further comprising changing the search channel to another channel claim 2 , when the at least one of the energy level and the RSSI value of the received signal is greater than or equal to the predetermined threshold.4. The method of claim 3 , further comprising:determining whether there is a remaining another channel, when at least one of an energy level and an RSSI value of a signal received on the changed search channels is greater than or equal to the threshold; andincreasing the threshold, ...

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20-06-2013 дата публикации

Method and apparatus for transmitting wireless power

Номер: US20130154558A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and apparatus are provided for transmitting wireless power in a wireless power network managed by a wireless power transmitter. The method includes transmitting first charging power to a first wireless power receiver; detecting a second wireless power receiver; and transmitting second charging power to the second wireless power receiver.

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04-07-2013 дата публикации

ELECTRONIC DEVICE FOR REDUCING INTERFERENCE BETWEEN A CHARGING COIL AND AN ANTENNA

Номер: US20130169223A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

An electronic device is provided. The electronic device includes a main body including a battery pack and a battery cover; a non-contact near field communication antenna included in the battery pack; and a wireless charging coil portion included in the battery cover and disposed around an outer periphery of the antenna, such that the wireless coil portion does not overlap with the non-contact near field communication antenna. 1. An electronic device comprising:a main body including a battery pack and a battery cover;a non-contact near field communication antenna included in the battery pack; anda wireless charging coil portion included in the battery cover and disposed around an outer periphery of the non-contact near field communication antenna, such that the wireless coil portion does not overlap with the non-contact near field communication antenna.2. The electronic device of claim 1 , wherein the wireless charging coil portion includes a shielding portion disposed along the wireless charging coil portion and having a shape corresponding to a shape of the wireless charging coil portion.3. The electronic device of claim 2 , wherein the shielding portion is made from ferrite or a polymer.4. The electronic device of claim 1 , wherein the non-contact near field communication antenna uses the frequency bands ranging from 12 to 14 MHz claim 1 , and the wireless charging coil portion uses the frequency bands ranging from 100 KHz to 14 MHz.5. The electronic device of claim 2 , wherein the battery cover is formed with a seating groove for seating the wireless charging coil portion and the shielding portion.6. The electronic device of claim 1 , wherein a predetermined distance is defined between the non-contact near field communication antenna and the wireless charging coil portion.7. An electronic device comprising:a main body including a battery pack and a battery cover;a non-contact near field communication antenna included in the battery pack; anda wireless charging ...

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11-07-2013 дата публикации

OVER-VOLTAGE PROTECTION DEVICE FOR RESONANT WIRELESS POWER RECEPTION DEVICE AND METHOD FOR CONTROLLING THE OVER-VOLTAGE PROTECTION DEVICE

Номер: US20130176653A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Provided is an over-voltage protection device for a resonant wireless power reception device. The over-voltage protection device includes a resonance signal receiver for receiving a wireless resonance signal transmitted from a wireless power transmission device, an over-voltage protector which is driven by a driver in an over-voltage protection operation to detune a resonance frequency of the reception device, thereby reducing reception power, the driver for driving the over-voltage protector according to a control signal in the over-voltage protection operation, and a controller for outputting the control signal for driving the over-voltage protector to the driver when it is determined that over-voltage occurs. 1. An over-voltage protection device for a resonant wireless power reception device , the over-voltage protection device comprising:a resonance signal receiver for receiving a wireless resonance signal transmitted from a wireless power transmission device;an over-voltage protector which is driven by a driver in an over-voltage protection operation to detune a resonance frequency of the reception device, thereby reducing reception power;the driver for driving the over-voltage protector according to a control signal in the over-voltage protection operation; anda controller for outputting the control signal for driving the over-voltage protector to the driver when it is determined that over-voltage occurs.2. The over-voltage protection device of claim 1 , wherein the over-voltage protector comprises resonance-detuning first and second capacitors which are connected with two connection terminals of a resonator of the resonance signal receiver claim 1 , respectively.3. The over-voltage protection device of claim 2 , wherein the driver comprises a switch structure in which the driver performs a switching operation according to the control signal output from the controller to connect the first and second capacitors of the over-voltage protector to a ground terminal ...

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25-07-2013 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING WIRELESS POWER BY USING RESONANT COUPLING AND SYSTEM FOR THE SAME

Номер: US20130187598A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Disclosed are an apparatus and a method for charging power using a resonant coupling. The apparatus includes a transmission power converter for converting Direct Current (DC) power to Alternating Current (AC) power, a controller for adjusting a Q factor of a transmission resonator by using a frequency of the converted AC power and a resonant frequency of the transmission resonator and controlling adaptive impedance matching, and a transmission resonator for wirelessly transmitting the converted AC power to a receiver through the adjusted Q factor and the controlled adaptive impedance matching, the transmission resonator having a coil installed in the transmitter. 1. An apparatus for transmitting wireless power of a transmitter using a resonant coupling , the apparatus comprising:a transmission power converter which converts Direct Current (DC) power to Alternating Current (AC) power;a controller which adjusts a Q factor of a transmission resonator by using a frequency of the converted AC power and a resonant frequency of the transmission resonator and controls adaptive impedance matching; anda transmission resonator which wirelessly transmits the converted AC power to a receiver through the adjusted Q factor and the controlled adaptive impedance matching, the transmission resonator having a coil installed in the transmitter.2. The apparatus of claim 1 , wherein the coil is installed in an inner side surface of the transmitter or an upper surface of a charging pad of the transmitter.3. The apparatus of claim 1 , wherein the controller matches the frequency of the AC power with the resonant frequency of the transmission resonator by adjusting the Q factor and controlling the adaptive impedance matching4. The apparatus of claim 3 , wherein the controller adjusts the Q factor by multiplying the resonant frequency of the transmission resonator by inductance and then dividing a result by a radiation loss.6. The apparatus of claim 3 , wherein the controller adjusts the Q ...

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29-08-2013 дата публикации

WIRELESS POWER RECEIVER AND CONTROLLING METHOD THEREOF

Номер: US20130221914A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Disclosed is a method for controlling a wireless power receiver including a charging unit. The method includes receiving wireless power, rectifying the received wireless power and outputting Direct Current (DC) wireless power, and determining whether the voltage of the rectified wireless power is greater than or equal to the allowable voltage of the charging unit. 1. A method for controlling a wireless power receiver including a charging unit , the method comprising:receiving wireless power;rectifying the received wireless power and outputting Direct Current (DC) wireless power; anddetermining whether a voltage of the rectified wireless power is equal to or higher than an allowable voltage of the charging unit.2. The method for controlling a wireless power receiver according to claim 1 , further comprising:converting the voltage of the rectified wireless power to a predetermined voltage and outputting the converted wireless power to the charging unit, if the voltage of the rectified wireless power is greater than or equal to the allowable voltage of the charging unit.3. The method for controlling a wireless power receiver according to claim 1 , further comprising:directly outputting the rectified wireless power to the charging unit, if the voltage of the rectified wireless power is lower than the allowable voltage of the charging unit.4. The method for controlling a wireless power receiver according to claim 1 , wherein the determining of whether the voltage of the rectified wireless power is greater than or equal to the allowable voltage of the charging unit claim 1 , comprises:reading information on the allowable voltage of the charging unit; anddetermining whether the voltage of the rectified wireless power is equal to or higher than the allowable voltage of the charging unit based on the read information on the allowable voltage.5. The method for controlling a wireless power receiver according to claim 1 , wherein the determining of whether the voltage of the ...

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07-11-2013 дата публикации

RESONANCE TERMINAL DEVICE FOR RESONANT WIRELESS POWER RECEPTION SYSTEM

Номер: US20130293027A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A shunt capacitor is connected to a wireless charging resonator to prevent harmonics emitted from a power amplifier from radiating to the outside, and at least one circuit having a high impedance relative to a Near Field Wireless Communication (NFC) frequency band is formed at a front side or a rear side of the shunt capacitor for solving the problems of radiating noise components due to wireless charging and of lowering an NFC signal and a power transmission intensity due to a concurrent interference between a wireless charging resonator and an NFC antenna.

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07-11-2013 дата публикации

POWER TRANSMITTER AND METHOD FOR DETECTING NON-INTENDED OBJECT OF POWER RECEPTION

Номер: US20130293028A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Methods and apparatus are provided for detecting a non-intended object of power reception by a power transmitter. Power transmission for communication is performed, when the load change is sensed that has a value greater than or equal to a predetermined threshold. It is determined whether a subscription request, for subscribing to a network is received within a predetermined time period. The power transmission for communication is stopped when the subscription request is not received within the predetermined time period. Power is transmitted to a power receiver that has transmitted the subscription request, when the subscription request is received within the predetermined time period. It is determined whether a leakage power value exceeds an allowable range, when the power state report is received from the power receiver. The transmission of the power to the power receiver is stopped, when the leakage power value exceeds the allowable range.

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16-01-2014 дата публикации

METHOD AND POWER TRANSMITTER FOR CONTROLLING POWER TRANSMISSION

Номер: US20140015330A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Methods and apparatus are provided for controlling power transmission. A minimum voltage and a maximum voltage receivable at the at least one power receiver, a reference voltage used to divide a range between the minimum voltage and the maximum voltage, and a demanded voltage required by the at least one power receiver, are received from at least one power receiver. A report about a power reception condition is received from the at least one power receiver. The report includes a measured voltage at the at least one power receiver during power transmission from the power transmitter. It is determined whether the measured voltage is between the minimum voltage and the reference voltage. Power is adjusted and supplied when the measured voltage is not between the minimum voltage and the reference voltage. 1. A method of controlling power transmission in a power transmitter , the method comprising the steps of:receiving, from at least one power receiver, a minimum voltage and a maximum voltage receivable at the at least one power receiver, a reference voltage used to divide a range between the minimum voltage and the maximum voltage, and a demanded voltage required by the at least one power receiver;receiving, from the at least one power receiver, a report about a power reception condition, wherein the report includes a measured voltage at the at least one power receiver during power transmission from the power transmitter;determining whether the measured voltage is between the minimum voltage and the reference voltage; andadjusting and supplying power, when the measured voltage is not between the minimum voltage and the reference voltage.2. The method of claim 1 , wherein adjusting and supplying of the power comprises:decreasing and supplying the power, when the measured voltage is between the reference voltage and the maximum voltage.3. The method of claim 1 , wherein adjusting and supplying of the power comprises:increasing and supplying the power, when the measured ...

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16-01-2014 дата публикации

Wireless power transmitter, wireless power receiver, and methods of controlling the same

Номер: US20140015335A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A wireless power transmitter, a wireless power receiver, and methods of controlling the same are provided. A method of detecting a rogue device other than a wireless power receiver in the wireless power transmitter includes receiving power consumption information about the wireless power receiver from the wireless power receiver, calculating a power loss based on the received power consumption information about the wireless power receiver, determining whether the power loss exceeds a threshold, and controlling transmission power of the wireless power transmitter, determining that a rogue device exists on the wireless power transmitter, if the power loss exceeds the threshold.

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16-01-2014 дата публикации

CORDLESS CHARGING APPARATUS

Номер: US20140017998A1
Принадлежит:

A cordless charging apparatus is provided. The cordless charging apparatus includes a cordless power reception resonator including a feeding connector for electric feeding, and a ground connector for grounding. The ground connector is spaced apart from a connection terminal connecting the cordless power reception resonator to a circuit. 1. A cordless charging apparatus comprising:a cordless power reception resonator including a feeding connector for electric feeding and a ground connector for grounding,wherein the ground connector is spaced apart from a connection terminal connecting the cordless power reception resonator to a circuit.2. The cordless charging apparatus of claim 1 , wherein the connection terminal is disposed between the circuit and the wireless power reception resonator claim 1 , the feeding connector is proximate to one side of the connection terminal claim 1 , and the ground connector is formed at a location adjacent to a location of the connection terminal to be spaced apart from the connection terminal toward an opposite side of the connection terminal.3. The cordless charging apparatus of claim 2 , wherein the feeding connector and the ground connector are spaced apart from each other by at least 1 mm.4. The cordless charging apparatus of claim 2 , wherein an NFC module is installed on an inner side of the cordless power reception resonator claim 2 , and a feeding point for supplying electric power to the NFC module is located adjacent to the connection terminal.5. The cordless charging apparatus of claim 4 , wherein the feeding point and the ground connector are spaced apart from each other by at least 1 mm.6. A cordless charging apparatus comprising:a cordless power reception resonator,wherein a terminal of the cordless power reception resonator is spaced apart from connection ends of internal antenna modules disposed on an inner side of the cordless power reception resonator.7. The cordless charging apparatus of claim 6 , wherein the ...

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04-01-2018 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING WIRELESS POWER

Номер: US20180006465A1
Принадлежит:

A method and apparatus are provided for determining, by a wireless power transmitter, whether a wireless power receiver is removed from a wireless power network managed by the wireless power transmitter. The method includes transmitting a command signal to report power information of the wireless power receiver at stated periods; determining whether a report signal corresponding to the command signal is received from the wireless power receiver; and determining that the wireless power receiver is removed from the wireless power network, if the report signal is not received after transmitting the command signal a predetermined number of times at the stated periods. 1. A method for controlling a wireless power transmitter , the method comprising:applying a first power for a wireless power receiver;detecting an error condition while applying the first power;after detecting the error condition, periodically applying a second power for detecting a load variation; anddetecting the load variation indicating that the wireless power receiver is removed from the wireless power transmitter while applying the second power.2. The method of claim 1 , wherein detecting the load variation comprises:detecting a load of a power transmitter of the wireless power transmitter; anddetecting a load variation of the power transmitter of the wireless power transmitter.3. The method of claim 2 , further comprising:storing a first value of the load of the power transmitter before the wireless power receiver is placed on a charging area; anddetecting a second value of the load of the power transmitter when the wireless power receiver is placed on the charging area,wherein detecting the load variation comprises detecting that the load of the power transmitter is changed from the second value to the first value.4. The method of claim 3 , further comprising:determining that the wireless power receiver is removed from the charging area in response to detecting that the load of the power ...

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04-01-2018 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING WIRELESS POWER

Номер: US20180006467A1
Принадлежит:

A method and apparatus are provided for controlling wireless power in a wireless power network managed by a wireless power transmitter. The control method includes registering a wireless power receiver to a wireless power network corresponding to the wireless power transmitter; applying a charging power for charging the wireless power receiver to a resonator of the wireless power transmitter; detecting a change of magnitude of power applied to the resonator; detecting that a communication unit of the wireless power transmitter fails to receive a communication signal from the wireless power receiver a predetermined time; and in response to detecting the change of the magnitude of power applied to the resonator and that the communication unit fails to receive the communication signal from the wireless power receiver in the predetermined time, removing the wireless power receiver from the wireless power network. 1. A wireless power transmitter , comprising:a resonator;a communication device; and register a wireless power receiver to a wireless power network corresponding to the wireless power transmitter,', 'control such that a charging power for charging the wireless power receiver is applied to the resonator,', 'detect a change of magnitude of power applied to the resonator,', 'detect that the communication unit fails to receive a communication signal from the wireless power receiver in a predetermined time, and', 'in response to detecting the change of the magnitude of the power applied to the resonator and that the communication unit fails to receive the communication signal from the wireless power receiver in the predetermined time, remove the wireless power receiver from the wireless power network., 'a processor configured to2. The wireless power transmitter of claim 1 , wherein the processor is further configured to control such that a detecting power for detecting another load change caused by a placement of an object is applied to the resonator claim 1 , when ...

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07-01-2021 дата публикации

PORTABLE TERMINAL HAVING A WIRELESS CHARGER COIL AND AN ANTENNA ELEMENT ON THE SAME PLANE

Номер: US20210006092A1
Принадлежит:

A portable terminal is provided. The portable terminal includes a shielding member attached to an inner surface of an external part, a shielding wall formed on the shielding member, a first coil attached to a surface of the shielding member that faces the inner surface of the external part, and a second coil attached to the surface of the shielding member, with the second coil surrounds the first coil on a same plane and the shielding wall being disposed between the first and second coil. 1. An electronic device comprising:a battery;a circuit board;a first coil, provided at an inside of the electronic device, for generating power based on an energy field provided from a wireless power transmitting device;a second coil, provided at the inside of the electronic device, for use in performing near field communication (NFC);circuitry comprising a first circuit and a second circuit, wherein the first circuit is configured to control charging of the battery using the power generated at the first coil, and the second circuit is configured to control performing of the NFC through the second coil, wherein the circuitry is located at the circuit board;a magnetic shield disposed between the circuitry and at least one of the first coil or the second coil; andfirst coil connection ends and second coil connection ends provided at the inside of the electronic device and respectively connected to the first coil and the second coil,wherein the first coil connection ends and the second coil connection ends are respectively connected to the first circuit and the second circuit via a plurality of terminals.2. The electronic device of claim 1 ,wherein the first coil is a secondary coil for inductive coupling the wireless power transmitting device.3. The electronic device of claim 1 , wherein the first circuit includes a wireless charging control circuit claim 1 , andwherein the first coil is connected to the battery via the wireless charging control circuit.4. The electronic device of ...

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07-01-2021 дата публикации

METHOD AND APPARATUS FOR PROTECTING WIRELESS POWER RECEIVER FROM EXCESSIVE CHARGING TEMPERATURE

Номер: US20210006096A1
Принадлежит:

An apparatus and a method for are provided for a wireless power receiver. The method includes receiving power from a wireless power transmitter; converting the power in an alternating current (AC) form into a direct current (DC) form and providing the converted power to a battery of the electronic device; measuring a temperature of a point in the wireless power receiver during reception of the wireless power; maintaining an amount of the converted power at a first level if the temperature is lower than a first temperature; decreasing the amount of the converted power to a second level which is lower than the first level if the amount of the converted power is at the first level and the temperature is higher than or equal to the first temperature; stopping providing the converted power to the battery if the temperature is higher than a second temperature; and transmitting, to the wireless power transmitter, a signal including status information of the wireless power receiver device and control information to control the wireless power transmitter. 113-. (canceled)14. An electronic device including a wireless power receiver , the electronic device comprising:a power receiving circuitry configured to wirelessly receive power from a wireless power transmitter;a power converting circuitry configured to convert the received power in an alternating current (AC) form into a direct current (DC) form;a power management circuitry configured to provide the converted power to a battery of the electronic device;a temperature measurement unit configured to measure a temperature of a point in the electronic device;a communication unit; anda controller configured to:control the power management circuitry to maintain an amount of the converted power at a first level if the temperature measured by the temperature measurement unit is lower than a first temperature,control the power management circuitry to decrease the amount of the converted power to a second level which is lower than ...

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07-01-2021 дата публикации

Wireless charging apparatus and method

Номер: US20210006099A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Methods and apparatus for wireless charging are provided. Transmission power transmitted from a wireless power transmitter is received at a power receiver of a wireless power receiver. A battery of the wireless power receiver is charged with the received transmission power. It is determined whether the battery is fully charged. A packet from a communication unit of the wireless power receiver is transmitted to the wireless power transmitter when the battery is fully charged. An auxiliary charge of the battery is performed by receiving strength-reduced transmission power from the wireless power transmitter.

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07-01-2021 дата публикации

Wireless power receiver and controlling method thereof

Номер: US20210006100A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method for controlling an electronic device including a charging circuit is provided. The method includes receiving power wirelessly from a power transmitting device; rectifying the received power; based on a voltage of the rectified power being greater than or equal to an allowable voltage of the charging circuit, controlling to convert the rectified power through a converting circuit of the electronic device and to output the converted power to the charging circuit for charging a battery of the electronic device, wherein the allowable voltage relates to a maximum voltage or a preferable voltage to be applied to the charging circuit; and based on the voltage of the rectified power being less than the allowable voltage of the charging circuit, controlling to stop converting the rectified power and to output the rectified power to the charging circuit by connecting the rectifying circuit to the charging circuit.

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24-04-2014 дата публикации

RECHARGEABLE LITHIUM BATTERY AND METHOD OF PREPARING SAME

Номер: US20140113205A1
Автор: Park Se-Ho
Принадлежит: Samsung SDI Co., Ltd.

A rechargeable lithium battery and a method of preparing the same are described. The rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and a liquid electrolyte including a lithium salt and a non-aqueous organic solvent. A separator is interposed between the negative electrode and positive electrode and includes a support. A fluoro-based polymer layer is positioned on both sides of the support. The positive electrode includes the positive active material in an amount from about 30 to about 70 mg/cm. 1. A rechargeable lithium battery , comprising:{'sup': 2', '2, 'a positive electrode comprising from about 30 mg/cmto about 70 mg/cmof a positive active material;'}a negative electrode comprising a negative active material;a liquid electrolyte comprising a lithium salt and a non-aqueous organic solvent; anda separator interposed between the negative electrode and the positive electrode and comprising a support and a fluoro-based polymer layer on each side of the support which is adapted to interface with the negative electrode or the positive electrode.2. The rechargeable lithium battery of claim 1 , wherein the positive electrode comprises the positive active material in an amount from about 35 mg/cmto about 65 mg/cm.3. The rechargeable lithium battery of claim 1 , wherein the positive electrode has a thickness from about 90 μm to about 190 μm.4. The rechargeable lithium battery of claim 1 , wherein the non-aqueous organic solvent comprises a cyclic carbonate in an amount greater than or equal to about 20 volume % based on a total volume of the electrolyte.5. The rechargeable lithium battery of claim 1 , wherein the fluoro-based polymer comprises polyvinylidene fluoride.6. The rechargeable lithium battery of claim 1 , wherein the fluoro-based polymer layer has a thickness from about 2 μm to about 6 μm.7. The rechargeable lithium battery of claim 1 , wherein the ...

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23-01-2020 дата публикации

WIRELESS POWER RECEIVER AND CONTROLLING METHOD THEREOF

Номер: US20200028387A1
Принадлежит:

A method for controlling a wireless power receiver including a charging unit and a wireless power receiver are provided. The method includes receiving wireless power; rectifying the received wireless power and outputting Direct Current (DC) wireless power; and determining whether a voltage of the rectified wireless power is equal to or higher than an allowable voltage of the charging unit. 1. A method for controlling a wireless power receiver including a charging unit , the method comprising:receiving wireless power;rectifying the received wireless power and outputting Direct Current (DC) wireless power; anddetermining whether a voltage of the rectified wireless power is equal to or higher than an allowable voltage of the charging unit.2. The method for controlling a wireless power receiver according to claim 1 , further comprising:converting the voltage of the rectified wireless power to a predetermined voltage and outputting the converted wireless power to the charging unit, if the voltage of the rectified wireless power is greater than or equal to the allowable voltage of the charging unit.3. The method for controlling a wireless power receiver according to claim 1 , further comprising:directly outputting the rectified wireless power to the charging unit, if the voltage of the rectified wireless power is lower than the allowable voltage of the charging unit.4. The method for controlling a wireless power receiver according to claim 1 , wherein the determining of whether the voltage of the rectified wireless power is greater than or equal to the allowable voltage of the charging unit claim 1 , comprises:reading information on the allowable voltage of the charging unit; anddetermining whether the voltage of the rectified wireless power is equal to or higher than the allowable voltage of the charging unit based on the read information on the allowable voltage.5. The method for controlling a wireless power receiver according to claim 1 , wherein the determining of ...

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01-02-2018 дата публикации

METHOD AND POWER TRANSMITTER FOR CONTROLLING POWER TRANSMISSION

Номер: US20180034306A1
Принадлежит:

Methods and apparatuses are provided for method is provided for controlling power transmission in a power transmitter. Voltage information required by a plurality of power receivers is received from the plurality of power receivers. The voltage information includes a minimum voltage, a reference voltage that is greater than the minimum voltage, and a demanded voltage. Power is transmitted to the plurality of power receivers. A report about a power reception condition while transmitting the power is received from the plurality of power receivers. The report includes a measured voltage at the plurality of power receivers. One of the plurality of power receivers is selected. An amount of the power is adjusted by minimizing a difference between the demanded voltage and the measured voltage of the selected power receiver. 1. A method of controlling power transmission in a power transmitter , the method comprising:receiving, from a plurality of power receivers, voltage information required by the plurality of power receivers, wherein the voltage information includes a minimum voltage, a reference voltage that is greater than the minimum voltage, and a demanded voltage;transmitting power to the plurality of power receivers;receiving, from the plurality of power receivers, a report about a power reception condition while transmitting the power, wherein the report includes a measured voltage at the plurality of power receivers;selecting one of the plurality of power receivers; andadjusting an amount of the power by minimizing a difference between the demanded voltage and the measured voltage of the selected power receiver.2. The method of claim 1 , further comprising stopping the power transmission claim 1 , if the measured voltage is greater than a predetermined value.3. The method of claim 1 , wherein selecting one of the plurality of power receivers comprises selecting a power receiver with a highest power usage rate among the plurality of power receivers.4. The method of ...

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11-02-2016 дата публикации

ELECTRONIC DEVICE FOR REDUCING INTERFERENCE BETWEEN A CHARGING COIL AND AN ANTENNA

Номер: US20160042863A1
Принадлежит:

An electronic device is provided. The electronic device includes a battery; a non-contact near field communication antenna; a wireless charging coil; and a case covering the battery, wherein the wireless charging coil is positioned between the battery and the case, and wherein one of the non-contact near field communication antenna and the wireless charging coil is positioned to surround the other one of the non-contact near field communication antenna and the wireless charging coil. 1. An electronic device comprising:a battery;a non-contact near field communication antenna;a wireless charging coil; anda case covering the battery,wherein the wireless charging coil is positioned between the battery and the case, andwherein one of the non-contact near field communication antenna and the wireless charging coil is positioned to surround the other one of the non-contact near field communication antenna and the wireless charging coil.2. The electronic device of claim 1 , wherein the wireless charging coil is positioned to surround the non-contact near field communication antenna.3. The electronic device of claim 1 , wherein the non-contact near field communication antenna is positioned to surround the wireless charging coil.4. The electronic device of claim 1 , wherein the non-contact near field communication antenna is positioned between the battery and the wireless charging coil.5. The electronic device of claim 1 , wherein the non-contact near field communication antenna is spaced from the wireless charging coil by a predetermined distance to prevent an interference between the non-contact near field communication antenna and the wireless charging coil.6. The electronic device of claim 1 , wherein the wireless charging coil is electrically connected to the electronic device.7. The electronic device of claim 1 , wherein the non-contact near field communication antenna is electrically connected to the electronic device.8. The electronic device of claim 1 , further ...

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11-02-2016 дата публикации

METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER TRANSMISSION

Номер: US20160043573A1
Принадлежит:

A wireless power transmission controlling apparatus and method are provided. The apparatus includes a communication unit; and a controller configured to compute an amount of transmission power to be transmitted, based on information received from a wireless power receiving apparatus; output a wireless power transmission control signal corresponding to the computed amount of transmission power; filter the wireless power transmission control signal and pass a harmonic wave corresponding to a predetermined communication frequency band; and control the communication unit to transmit the wireless power transmission control signal based on the harmonic wave. 1. An apparatus for controlling wireless power transmission , the apparatus comprising:a communication unit; and compute an amount of transmission power to be transmitted, based on information received from a wireless power receiving apparatus;', 'output a wireless power transmission control signal corresponding to the computed amount of transmission power;', 'filter the wireless power transmission control signal and pass a harmonic wave corresponding to a predetermined communication frequency band; and', 'control the communication unit to transmit the wireless power transmission control signal based on the harmonic wave., 'a controller configured to2. The apparatus of claim 1 , wherein the communication unit performs near field communication (NFC).3. The apparatus of claim 1 , wherein the controller is further configured to control to resonate at a wireless power transmission frequency band to output the wireless power transmission control signal.4. The apparatus of claim 3 , wherein the predetermined communication frequency band and the wireless power transmission frequency band are different frequency bands.5. The apparatus of claim 3 , wherein the wireless power transmission frequency band is 6.78 MHz.6. The apparatus of claim 1 , wherein the predetermined communication frequency band is 13.56 megahertz (MHz).7. A ...

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08-05-2014 дата публикации

Wireless power transmitter and wireless power receiver

Номер: US20140125278A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Disclosed is a wireless power transmitter that includes a resonator that provides charging electric power to a wireless power receiver and a metal layer spaced apart from the resonator by a preset interval, with a line width of the resonator being smaller than the preset interval between the resonator and the metal layer.

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15-05-2014 дата публикации

CORDLESS CHARGING APPARATUS

Номер: US20140132211A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A cordless charging apparatus is provided. The cordless charging apparatus includes a charging pad, an electronic device including a charging module which is disposed on the charging pad and is electrically conducted so as to cordlessly charge a battery with electric power, and a dispersing member which is disposed in the charging pad and disperses heat generated in the charging module to the charging pad. 1. A cordless charging apparatus , comprising:a charging pad;an electronic device which is placed on and associated with the charging pad to cordlessly charge a battery in the electronic device; anda dispersing member which is provided on the charging pad and disperses heat, which is generated from the electronic device, toward the charging pad.2. The cordless charging apparatus as claimed in claim 1 , wherein the charging pad has a charging region on which the electronic device is seated claim 1 , and the dispersing member is provided on the charging region so as to disperse the heat which is generated from the electronic device.3. The cordless charging apparatus of claim 2 , wherein the electronic device includes a charging module which charges the battery with the charging pad.4. The cordless charging apparatus of claim 3 , wherein the charging module generates heat claim 3 , which is dispersed by the dispersing member.5. The cordless charging apparatus as claimed in claim 1 , wherein the dispersing member has heat conductivity claim 1 , and is electrically insulated.6. The cordless charging apparatus as claimed in claim 5 , wherein the dispersing member includes a thermally conductive plastic.7. The cordless charging apparatus as claimed in claim 6 , wherein the thermally conductive plastic receives and disperses the heat generated from the charging module.8. The cordless charging apparatus as claimed in claim 6 , wherein the thermally conductive plastic is attached to an external surface of the charging region by at least one of a heat bonding claim 6 , an ...

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01-03-2018 дата публикации

Method and system for managing wireless charging

Номер: US20180062422A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An electronic device is provided. The electronic device includes a power receiver (PRx) that includes a receiver coil for receiving a power signal from a wireless power transmitting device and a wireless charging integrated circuit (IC) for converting the power signal into electrical energy, a power management circuit that is electrically connected to the PRx and configured to charge a battery using the electrical energy, and a processor that is electrically connected with the PRx and the power management circuit. The processor activates a power hold mode (PHM) if a charging level of the battery is a fully charged level and controls auxiliary charging of the battery.

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02-03-2017 дата публикации

ELECTRONIC DEVICE AND METHOD FOR CONTROLLING TEMPERATURE OF ELECTRONIC DEVICE

Номер: US20170063141A1
Принадлежит:

According to various embodiments of the present disclosure, an electronic device comprising: a housing; a conductive pattern that is provided in the housing; and a controller that is electrically connected with the conductive pattern, configured to apply a current to the conductive pattern, monitor the current, and if the monitored current value exceeds a first threshold value for more than a selected time, changes the current value to a first selected value that is equal to or less than the first threshold value; wherein the conductive pattern is configured to generate induced electric power responsive to application of current by the controller. Various embodiments may be provided. 1. An electronic device comprising:a housing;a conductive pattern that is provided in the housing; anda controller that is electrically connected with the conductive pattern, configured to apply a current to the conductive pattern, monitor the current, and if the monitored current value exceeds a first threshold value for more than a selected time, changes the current value to a first selected value that is equal to or less than the first threshold value;wherein the conductive pattern is configured to generate induced electric power responsive to application of current by the controller.2. The electronic device of claim 1 , wherein the controller claim 1 , if the monitored current value is greater than a second threshold value for more than a selected time claim 1 , changes the current value to a second selected value that is equal to or less than the second threshold value.3. The electronic device of claim 2 , wherein the controller claim 2 , if the monitored current value is between the first threshold value and the second threshold value for more than a selected time claim 2 , maintains the current value.4. The electronic device of claim 1 , wherein the controller controls to change the current value to a selected value that is equal to or less than the first threshold value claim 1 ...

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27-02-2020 дата публикации

Method for manufacturing structure

Номер: US20200067069A1

A method of preparing a structure, more particularly, a method of preparing a structure capable of ensuring a space for carrying an electrode active material by a simple method which includes an electrospinning process using a double nozzle electrospinning device and a heat treatment process.

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27-02-2020 дата публикации

METHOD AND SYSTEM FOR MANAGING WIRELESS CHARGING

Номер: US20200067342A1
Принадлежит:

An electronic device is provided. The electronic device includes a power receiver (PRx) that includes a receiver coil for receiving a power signal from a wireless power transmitting device and a wireless charging integrated circuit (IC) for converting the power signal into electrical energy, a power management circuit that is electrically connected to the PRx and configured to charge a battery using the electrical energy, and a processor that is electrically connected with the PRx and the power management circuit. The processor activates a power hold mode (PHM) if a charging level of the battery is a fully charged level and controls auxiliary charging of the battery. 1. An electronic device comprising:a power receiver including a receiver coil configured to receive a power signal from a wireless power transmitting device and a wireless charging integrated circuit (IC) configured to convert the power signal into electrical energy;a power management circuit electrically connected to the power receiver and configured to charge a battery using the electrical energy; anda processor electrically connected with the power receiver and the power management circuit,wherein the processor is configured to activate a power hold mode if a charging level of the battery is a fully charged level and allow the power receiver to transmit a charging hold message representing that the power hold mode is activated to the wireless power transmitting device,wherein the power receiver is configured to receive a charging hold message from the wireless power transmitting device in an active state of the power hold mode, andwherein the processor is configured to control auxiliary charging of the battery based on a current charging level of the battery, in response to receiving the charging hold message.2. The electronic device of claim 1 , wherein the processor is further configured to auxiliarily charge the battery if the current charging level of the battery is not greater than a specified ...

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12-06-2014 дата публикации

METHOD AND APPARATUS FOR PROTECTING WIRELESS POWER RECEIVER FROM EXCESSIVE CHARGING TEMPERATURE

Номер: US20140159654A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

An apparatus and a method for protecting a wireless power receiver from excessive temperature caused by charging are provided. The wireless power receiver includes a power receiver for receiving wireless power in an Alternate Current (AC) form from a wireless power transmitter; a regulator for regulating the wireless power; a power management unit for controlling charging by providing the regulated wireless power to a battery; a temperature measurement unit for measuring a temperature of a point in the wireless power receiver during reception of the wireless power; and a controller configured to provide a control signal for the wireless power receiver to be charged with a regulated charging power if a temperature measured by the temperature measurement unit exceeds a preset temperature. 1. A wireless power receiver for preventing excessive temperature caused by charging , the wireless power receiver comprising:a power receiver configured to receive wireless power in an Alternate Current (AC) form from a wireless power transmitter;a regulator configured to regulate the wireless power;a power management unit configured to control charging by providing the regulated wireless power to a battery;a temperature measurement unit configured to measure a temperature of a point in the wireless power receiver during reception of the wireless power; anda controller configured to provide a control signal for the wireless power receiver to be charged with a regulated charging power if a temperature measured by the temperature measurement unit exceeds a preset temperature.2. The wireless power receiver of claim 1 , wherein the preset temperature is set below an Over Temperature Protection (OTP) temperature.3. The wireless power receiver of claim 1 , wherein the controller is configured to regulate the charging power by providing the control signal to the regulator to decrease output current to the power management unit.4. The wireless power receiver of claim 1 , further comprising: ...

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12-06-2014 дата публикации

INTEGRATED CIRCUIT FOR WIRELESS CHARGING AND OPERATING METHOD THEREOF

Номер: US20140159655A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

An integrated circuit for wireless charging and a wireless charging method in an integrated circuit are provided. The integrated circuit includes a first wireless communication unit configured to support a first wireless communication method; a second wireless communication unit configured to support a second wireless communication method; a first route selection unit configured to perform a selection from among a first power input according to wired charging and a second power input according to wireless charging to be allowed as input; a second route selection unit configured to perform a selection from among a power between a third power input from a battery and a fourth power input according to wireless charging to be allowed as input; a power block configured to receive the power from any the first and second route selection units; and a controller configured to control an operation of the first and second route selection units. 1. An integrated circuit for wireless charging , comprising:a first wireless communication unit configured to support a first wireless communication method;a second wireless communication unit configured to support a second wireless communication method;a first route selection unit configured to perform a selection from among a first power input according to wired charging and a second power input according to wireless charging to be allowed as input;a second route selection unit configured to perform a selection from among a power between a third power input from a battery and a fourth power input according to wireless charging to be allowed as input;a power block configured to receive the power from any the first and second route selection units; anda controller configured to control an operation of the first and second route selection units.2. The integrated circuit of claim 1 , wherein the first route selection unit allows the first power input according to the wired charging to be transferred to the power block under the control of ...

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22-03-2018 дата публикации

Method and apparatus for controlling wireless power of a receiver in a wireless power transmission/reception system

Номер: US20180083454A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and apparatus are provided for controlling power in a wireless power transmission/reception system. The method includes receiving power information from a receiver within a charging area; determining whether power is available for the receiver based on the power information; if the power is available for the receiver, transmitting, to the receiver, a first response requesting the receiver to perform charging; and if the power is not available for the receiver, transmitting, to the receiver, a second response requesting the receiver to maintain a standby state

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14-03-2019 дата публикации

Power transmitting method and power transmitter for communication with power receiver

Номер: US20190081513A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.

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02-04-2015 дата публикации

PORTABLE TERMINAL HAVING A WIRELESS CHARGER COIL AND AN ANTENNA ELEMENT ON THE SAME PLANE

Номер: US20150091524A1
Принадлежит:

A portable terminal is provided. The portable terminal includes a shielding member disposed on an external part, a first coil disposed on a surface of the shielding member that faces the external part, and a second coil disposed on the surface of the shielding member, and surrounding the first coil on a same plane. 1. A portable terminal comprising:a shielding member disposed on an external part;a first coil disposed on a surface of the shielding member that faces the external part; anda second coil disposed on the surface of the shielding member, and surrounding the first coil on a same plane.2. The portable terminal of claim 1 , wherein the first coil is a secondary coil for inductive coupling with a charger and the second coil is an antenna element.3. The portable terminal of claim 1 , wherein the first coil is an antenna element and the second coil is a secondary coil for inductive coupling with a charger.4. The portable terminal of claim 1 , further comprising a battery mounting recess formed on a housing of the portable terminal claim 1 , wherein the external part is a battery cover detachably engaged with the housing claim 1 , for opening or covering the battery mounting recess.51. The portable terminal of claim 1 , wherein a battery pack connected to the first coil is accommodated in the portable terminal and the first coil is a secondary coil for inductive coupling with a charger claim 1 , connected to the battery pack.6. The portable terminal of claim 1 , wherein the second coil is a Near Field Communication (NFC) antenna element.7. The portable terminal of claim 1 , further comprising a Near Field Communication (NFC) control circuit built in the portable terminal claim 1 , wherein one of the first and second coils is connected to a communication circuit of the portable terminal through the NFC control circuit.8. The portable terminal of claim 1 , further comprising a wireless charging control circuit built in the external part or the portable terminal ...

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05-04-2018 дата публикации

WIRELESS CHARGING APPARATUS AND METHOD

Номер: US20180097409A1
Принадлежит:

Methods and apparatus for wireless charging are provided. Transmission power transmitted from a wireless power transmitter is received at a power receiver of a wireless power receiver. A battery of the wireless power receiver is charged with the received transmission power. It is determined whether the battery is fully charged. A packet from a communication unit of the wireless power receiver is transmitted to the wireless power transmitter when the battery is fully charged. An auxiliary charge of the battery is performed by receiving strength-reduced transmission power from the wireless power transmitter. 1: An electronic device comprising:a battery;a communication circuit;a power receiving circuit for generating a current based on an electromagnetic field provided from a wireless power transmitting device; andcontrolling circuitry configured to at least:control to charge the battery using a first current generated at the power receiving circuit based on an electromagnetic field with a first strength provided from the wireless power transmitting device,based on a full charge condition for the battery being satisfied, control to transmit, through the communication circuit, first information towards the wireless power transmitting device, the first information comprising a charging status of the battery of the electronic device, andafter the first information is transmitted, control to charge the battery using a second current generated at the power receiving circuit based on the electromagnetic field with the second strength provided from the wireless power transmitting device, to maintain the full charge condition for the battery.2: The electronic device of claim 1 , wherein the first information comprises a charge status (CS) packet claim 1 , and wherein the CS packet is based on a Wireless Power Consortium (WPC) standard.3: The electronic device of claim 2 , wherein the CS packet comprises a charge level having a value between 1 and 100 claim 2 , and wherein the ...

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28-03-2019 дата публикации

METHOD AND POWER TRANSMITTER FOR CONTROLLING POWER TRANSMISSION

Номер: US20190097449A1
Принадлежит:

Methods and apparatuses are provided for controlling power transmission in a power transmitter. Voltage information including a minimum voltage, a maximum voltage, and a first voltage, is received from each of a plurality of power receivers. Power is transmitted to the plurality of power receivers based on the voltage information. A respective report about a power reception condition is received from each of the plurality of power receivers while transmitting the power. Each respective report includes a measured voltage at a corresponding power receiver of the plurality of power receivers. A power receiver is selected from among the plurality of power receivers based on the received reports. An amount of the power is adjusted by reducing a difference between a first voltage of the selected power receiver and a measured voltage of the selected power receiver. 1. A method of controlling power transmission in a power transmitter , the method comprising:receiving, from each of a plurality of power receivers, voltage information including a minimum voltage, a maximum voltage, and a first voltage;transmitting power to the plurality of power receivers based on the voltage information;receiving, from each of the plurality of power receivers, a respective report about a power reception condition while transmitting the power, wherein each respective report includes a measured voltage at a corresponding power receiver of the plurality of power receivers;selecting a power receiver from among the plurality of power receivers based on the received reports; andadjusting an amount of the power by reducing a difference between a first voltage of the selected power receiver and a measured voltage of the selected power receiver.2. The method of claim 1 , wherein the first voltage is a desired voltage which is set by each of the plurality of power receivers.3. The method of claim 1 , further comprising stopping power transmission claim 1 , if the measured voltage at the corresponding ...

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26-03-2020 дата публикации

METHOD FOR PREPARING HOLLOW STRUCTURE

Номер: US20200099040A1
Принадлежит: LG CHEM, LTD.

A method for preparing a hollow structure, and more particularly, to a method for preparing a hollow structure having various stable structures by using polystyrene particles, into which a functional group is introduced, as a template for preparing the hollow structure. 1. A method of making a hollow structure comprising the steps of:(S1) preparing polystyrene having one or more functional group by a method comprising reacting a styrene monomer, a monomer for introducing the functional group and an initiator;(S2) adding the polystyrene of step (S1) to a metal solution to form polystyrene into which metal is introduced;(S3) coating the metal-introduced polystyrene with a carbon-based polymer;(S4) performing a first heat treatment on the metal-introduced polystyrene coated with the carbon-based polymer, to remove the polystyrene; and(S5) performing a second heat treatment on the result of step (S4) to carbonize the result of step (S4).2. The method of making the hollow structure according to claim 1 , wherein the functional group is at least one selected from the group consisting of a carboxyl group (—COOH) claim 1 , a hydroxyl group (—OH) and an amine group (—NH).3. The method of making the hollow structure according to claim 1 , wherein the monomer for introducing the functional group is at least one selected from the group consisting of acrylic acid claim 1 , 2-hydroxyethyl acrylate claim 1 , and allyl amine.4. The method of making the hollow structure according to claim 1 , wherein the initiator is at least one selected from the group consisting of 4 claim 1 ,4′-azobis(4-cyanovaleric acid) claim 1 , 2 claim 1 ,2′-azobis(2-methylpropionamidine) dihydrochloride and potassium persulfate.5. The method of making the hollow structure according to claim 1 , wherein in the polymerization of step (S1) claim 1 , 60 to 95% by weight of the styrene monomer; 1 to 30% by weight of the monomer for introducing the functional group; and 1 to 10% by weight of the initiator are ...

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30-04-2015 дата публикации

CASSETTE TRANSFER APPARATUS AND CASSETTE TRANSFERRING METHOD USING THE SAME

Номер: US20150117988A1
Принадлежит:

A cassette transfer apparatus includes a holding unit configured to hold a cassette having a wafer loaded therein, the cassette having at least one stepped part, and the holding unit including at least one holding part configured to have the at least one stepped part placed thereon. The at least one stepped part includes a pair of stepped parts provided at opposite surfaces of the cassette, and the at least one holding part includes a pair of holding parts that extends back and forth and is configured to have the pair of stepped parts placed thereon. 1. A cassette transfer apparatus , comprising a holding unit configured to hold a cassette having a wafer loaded therein , wherein the cassette has at least one stepped part , and the holding unit includes at least one holding part configured to have the at least one stepped part placed thereon.2. The cassette transfer apparatus of claim 1 , wherein the at least one stepped part includes a pair of stepped parts provided at opposite surfaces of the cassette claim 1 , and the at least one holding part includes a pair of holding parts that extends back and forth and is configured to have the pair of stepped parts placed thereon.3. The cassette transfer apparatus of claim 2 , wherein the holding unit includes a bottom surface supporting part configured to support a bottom surface of the cassette claim 2 , and the pair of holding parts is configured to move upward relative to the bottom surface supporting part and to lift a front portion of the cassette to make the front portion of the cassette positioned higher than a rear portion of the cassette.4. The cassette transfer apparatus of claim 3 , wherein the holding unit includes a holding member and a lifting device claim 3 , the holding member including the pair of holding parts and a connection part that connects the pair of holding parts claim 3 , and the lifting device is configured to lift the holding member.5. The cassette transfer apparatus of claim 3 , wherein the ...

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28-04-2016 дата публикации

INTEGRATED CIRCUIT FOR WIRELESS CHARGING AND OPERATING METHOD THEREOF

Номер: US20160118843A1
Принадлежит:

An integrated circuit for wireless charging and a method for wireless charging by an integrated circuit are provided. The integrated circuit includes a first wireless communication unit configured to support a first wireless communication method; a first route selection unit configured to perform a selection from among a first power input from a battery and a second power input according to wireless charging to be allowed as input; a power block configured to receive the selected power from the first route selection unit, and provide the received power to the first wireless communication unit; and a controller configured to control an operation of the first route selection unit. 1. An integrated circuit for wireless charging , comprising:a first wireless communication unit configured to support a first wireless communication method;a first route selection unit configured to perform a selection from among a first power input from a battery and a second power input according to wireless charging to be allowed as input;a power block configured to receive the selected power from the first route selection unit, and provide the received power to the first wireless communication unit; anda controller configured to control an operation of the first route selection unit.2. The integrated circuit of claim 1 , further comprising:a second wireless communication unit configured to support a second wireless communication method.3. The integrated circuit of claim 2 , further comprising:a second route selection unit configured to perform a selection from among a power between a third power input from the battery and a fourth power input according to wireless charging to be allowed as input.4. The integrated circuit of claim 3 , wherein the controller is further configured to the second route selection unit to transfer the fourth power to the power block if the third power and the fourth power are inputted.5. The integrated circuit of claim 4 , wherein the controller determines ...

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28-04-2016 дата публикации

WIRELESS POWER TRANSMITTER AND METHOD OF CONTROLLING THE SAME

Номер: US20160118844A1
Принадлежит:

A wireless power transmitter and a method of controlling the wireless power transmitter are provided. The wireless power transmitter includes a power supply configured to supply charging power; a power transmitter configured to transmit the charging power to a wireless power receiver; an overcurrent protection circuit configured to change an impedance of the wireless power transmitter; and a controller configured to monitor a current value of an output terminal of the power supply, and connect the overcurrent protection circuit to the power transmitter if the monitored current value is greater than a predetermined threshold. 1. A wireless power transmitter , comprising:a power supply configured to supply charging power;a power transmitter configured to transmit the charging power to a wireless power receiver;an overcurrent protection circuit configured to change an impedance of the wireless power transmitter; anda controller configured to:monitor a current value of an output terminal of the power supply, and connect the overcurrent protection circuit to the power transmitter if the monitored current value is greater than a predetermined threshold.2. The wireless power transmitter of claim 1 , wherein the overcurrent protection circuit includes at least one element of a capacitor claim 1 , a coil claim 1 , and a resistor.3. The wireless power transmitter of claim 2 , wherein the overcurrent protection circuit further includes a first switch connected between the controller and the overcurrent protection circuit and a second switch connected between the overcurrent protection circuit and the power transmitter.4. The wireless power transmitter of claim 3 , wherein the controller controls the first and second switches to be in an “ON” state if the current value of the charging power is greater than the predetermined threshold.5. The wireless power transmitter of claim 4 , wherein the controller includes a comparator connected to the power supply.6. The wireless power ...

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05-05-2016 дата публикации

RECHARGEABLE BATTERY

Номер: US20160126528A1
Принадлежит:

A rechargeable battery includes a wound electrode assembly comprising a separator between a first electrode and a second electrode, wherein the first and second electrodes each include uncoated regions and coated regions; a case accommodating the electrode assembly; and a first electrode terminal and a second electrode terminal respectively coupled to the first and second electrodes and extending from the case, wherein an uncoated region of the first electrode includes inner and outer uncoated regions of a terminal end portion located at an outermost side of the electrode assembly, and wherein the second electrode includes an outer uncoated region of a terminal end portion facing the inner uncoated region of the first electrode and an additional inner coated region at an opposite side of the outer uncoated region. 1. A rechargeable battery comprising:a wound electrode assembly comprising a separator between a first electrode and a second electrode, wherein the first and second electrodes each include uncoated regions and coated regions;a case accommodating the electrode assembly; anda first electrode terminal and a second electrode terminal respectively coupled to the first and second electrodes and extending from the case, wherein an uncoated region of the first electrode includes inner and outer uncoated regions of a terminal end portion located at an outermost side of the electrode assembly, and wherein the second electrode includes an outer uncoated region of a terminal end portion facing the inner uncoated region of the first electrode and an additional inner coated region at an opposite side of the outer uncoated region.212. The rechargeable battery of claim 1 , wherein claim 1 , in the terminal end portion claim 1 , the inner uncoated region of the first electrode has a first length L corresponding to a width W of the electrode assembly claim 1 , and the outer uncoated region of the first electrode has a second length L corresponding to one winding range of ...

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19-05-2016 дата публикации

METAL NANOPLATE, A METHOD FOR PREPARING THE SAME, A CONDUCTIVE INK COMPOSITION, AND A CONDUCTIVE FILM COMPRISING THE SAME

Номер: US20160137865A1
Принадлежит: LG CHEM, LTD.

The present invention relates to a metal nanoplate, a method for manufacturing same, and a conductive ink composition and a conductive film comprising metal nanoplate. The metal nanoplate does not require application of a high temperature and high pressure and thus can be easily manufactured at a low temperature and at normal pressure, and a conductive film or a conductive pattern, among others, having excellent conductivity can be formed even when the conductive ink composition comprising the metal nanoplate is printed on a substrate and then heat-treated or dried at a low temperature. As a result, the metal nanoplate and the conductive ink composition comprising same can be very appropriately applied to various semiconductor elements, display devices, or when forming a conductive pattern or a conductive film for a solar cell in an environment requiring low-temperature firing. 1. A metal nanoplate , comprising a metal connected by the medium of a conductive polymer and having the thickness of 0.5 nm to 100 nm , the diameter of 200 nm or more , and the width larger than the thickness and equal to or less than the diameter , wherein the ratio of width/diameter is 0.6 to 1.2. The metal nanoplate of claim 1 , wherein the diameter is 200 nm to 100 μm.3. The metal nanoplate of claim 1 , wherein the width is 120 nm to 100 μm.4. The metal nanoplate of claim 1 , wherein a ratio of diameter/thickness is 10 to 20 claim 1 ,000.5. The metal nanoplate of claim 1 , wherein the metal nanoplate has a plate shape of polygon claim 1 , circle claim 1 , or oval.6. The metal nanoplate of claim 1 , wherein the metal nanoplate comprises a metal oxide less than 1 wt %.7. The metal nanoplate of claim 1 , wherein the metal comprises one or more metals selected from the group consisting of silver (Ag) claim 1 , gold (Au) claim 1 , platinum (Pt) claim 1 , palladium (Pd) claim 1 , iridium (Ir) claim 1 , ruthenium (Ru) claim 1 , rhodium (Rh) claim 1 , copper (Cu) claim 1 , and nickel (Ni).8. The ...

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02-05-2019 дата публикации

Lithium-rich antiperovskite-coated lco-based lithium composite, method for preparing same, and positive electrode active material and lithium secondary battery comprising same

Номер: US20190131651A1
Принадлежит: LG Chem Ltd

The present invention relates to a Li-rich antiperovskite-coated LCO-based lithium complex, a method of preparing the same, and a positive electrode active material and a lithium secondary battery, both of which include the LCO-based lithium complex. When a lithium complex in which a coating layer of a compound having a lithium-rich antiperovskite (LiRAP) crystal structure is formed on surfaces of LCO-based particles is applied as the positive electrode active material, the lithium complex is favorable for batteries which are operated at a high voltage, has high lithium ion conductivity, and can be applied to lithium secondary batteries which are driven at a high temperature due to high thermal stability.

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23-04-2020 дата публикации

NEGATIVE ELECTRODE COMPRISING MULTIPLE PROTECTION LAYERS AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: US20200127293A1
Принадлежит: LG CHEM, LTD.

The present invention relates to a negative electrode including a multi-protective layer and a lithium secondary battery including the same. The multi-protective layer is capable of effectively transferring lithium ions to a lithium metal electrode while physically suppressing lithium dendrite growth on the electrode surface, and does not cause an overvoltage during charge and discharge since the protective layer itself does not function as a resistive layer due to excellent ion conductivity of the multi-protective layer, and therefore, is capable of preventing battery performance decline and securing stability during battery operation. 1. A negative electrode for a lithium secondary battery comprising:a lithium metal layer,a first protective layer formed on the lithium metal layer and maintaining an interface with the lithium metal layer,a second protective layer formed on the first protective layer and physically suppressing dendrite growth, anda third protective layer formed on the second protective layer and supporting a structure of the second protective layer.2. The negative electrode for a lithium secondary battery of claim 1 , wherein the first protective layer has ion conductivity of 10S/Cm or greater and liquid electrolyte uptake of 150% by weight or greater.3. The negative electrode for a lithium secondary battery of claim 1 , wherein the first protective layer includes one or more selected from the group consisting of a PVdF-HFP polymer claim 1 , polyurethane-based polymers and polyacryl-based polymers.4. The negative electrode for a lithium secondary battery of claim 1 , wherein the second protective layer has Young's modulus of 5 GPa or greater claim 1 , Li ion conductivity of 10S/Cm or greater and liquid electrolyte uptake of 150% by weight or less.5. The negative electrode for a lithium secondary battery of claim 1 , wherein the second protective layer includes one or more selected from the group consisting of lithium phosphorus oxynitride (LiPON) ...

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19-05-2016 дата публикации

PORTABLE TERMINAL HAVING A WIRELESS CHARGER COIL AND AN ANTENNA ELEMENT ON THE SAME PLANE

Номер: US20160142110A1
Принадлежит:

A portable terminal is provided. The portable terminal includes a shielding member attached to an inner surface of an external part, a shielding wall formed on the shielding member, a first coil attached to a surface of the shielding member that faces the inner surface of the external part, and a second coil attached to the surface of the shielding member, with the second coil surrounds the first coil on a same plane and the shielding wall being disposed between the first and second coil. 1. A portable terminal comprising:a shielding member attached to an inner surface of an external part;a shielding wall formed on the shielding member;a first coil attached to a surface of the shielding member that faces the inner surface of the external part; anda second coil attached to the surface of the shielding member,wherein the second coil surrounds the first coil on a same plane, andwherein the shielding wall is disposed between the first and second coil.2. The portable terminal of claim 1 , wherein the first coil is a secondary coil for inductive coupling with a charger and the second coil is an antenna element.3. The portable terminal of claim 1 , wherein the first coil is an antenna element and the second coil is a secondary coil for inductive coupling with a charger.4. The portable terminal of claim 1 , further comprising a battery mounting recess formed on a housing of the portable terminal claim 1 , wherein the external part is a battery cover detachably engaged with the housing claim 1 , for opening or covering the battery mounting recess.5. The portable terminal of claim 1 , wherein a battery pack connected to the first coil is accommodated in the portable terminal and the first coil is a secondary coil for inductive coupling with a charger connected to the battery pack.6. The portable terminal of claim 1 , wherein the second coil is a Near Field Communication (NFC) antenna element.7. The portable terminal of claim 1 , further comprising an NFC control circuit built ...

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18-05-2017 дата публикации

INTEGRATED CIRCUIT FOR WIRELESS CHARGING AND OPERATING METHOD THEREOF

Номер: US20170141607A1
Принадлежит:

An integrated circuit for wireless charging and a method for wireless charging by an integrated circuit are provided. The integrated circuit includes a first wireless communication unit configured to support a first wireless communication method; a first route selection unit configured to perform a selection from among a first power input from a battery and a second power input according to wireless charging to be allowed as input; a power block configured to receive the selected power from the first route selection unit, and provide the received power to the first wireless communication unit; and a controller configured to control an operation of the first route selection unit. 1. An integrated circuit , comprising:a first wireless communication unit configured to support a first wireless communication method used for wireless charging;a power block configured to receive a first power from a battery through a first route or a second power according to wireless charging through a second route and provide the received first power or the received second power to the first wireless communication unit; anda controller configured to control an operation of the power block.2. The integrated circuit of claim 1 , wherein the controller is further configured to control the power block to receive the first power among the first power and the second power if the first power from the battery and the second power according to the wireless charging are received.3. The integrated circuit of claim 1 , wherein the controller is further configured to control the power block to receive the second power if the first power from the battery is not received and the second power according to the wireless charging is received.4. The integrated circuit of claim 1 , further comprising:a second wireless communication unit configured to support a second wireless communication method.5. The integrated circuit of claim 4 , wherein the controller determines whether charging from the battery or the ...

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26-05-2016 дата публикации

SIGNAL RECEIVING AND TRANSMITTING CIRCUIT AND ELECTRONIC DEVICE INCLUDING THE SAME

Номер: US20160149416A1
Принадлежит:

A signal transmission and reception circuit is provided. The signal transmission and reception circuit includes a coil configured to receive power wirelessly supplied from the outside or output a specific signal wirelessly, a transmission and reception control module including a signal conversion switching circuit that is connected to the coil to rectify the wirelessly supplied power or convert a signal to be output and a driver that controls a switching state of the signal conversion switching circuit, and a filter configured to convert, the signal to be output, into a specific signal. 1. A signal transmission and reception circuit comprising:a coil;a transmission and reception control module comprising a signal conversion switching circuit that is connected to the coil to rectify wirelessly supplied power or convert a signal to be output, and a driver that controls a switching state of the signal conversion switching circuit; anda filter configured to convert the signal to be output into a specific signal.2. The signal transmission and reception circuit according to claim 1 , further comprising a capacitor connected in parallel to the filter and disposed between the signal conversion switching circuit and the coil.3. The signal transmission and reception circuit according to claim 2 , wherein a capacitance of the filter is equal to or greater than a capacitance of the capacitor.4. The signal transmission and reception circuit according to claim 2 , further comprising a first state switch configured to control a connection of the filter and the signal conversion switching circuit corresponding to a specific condition.5. The signal transmission and reception circuit according to claim 4 , wherein the first state switch is a turn-off state while the power is received.6. The signal transmission and reception circuit according to claim 1 , wherein the coil comprises:a first coil configured to output the specific signal; anda second coil configured to receive power ...

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24-05-2018 дата публикации

ELECTRONIC DEVICE INCLUDING CONDUCTIVE HOUSING

Номер: US20180144861A1
Принадлежит:

An electronic device is provided. The electronic device includes a housing and a first coil disposed in the housing and wound around a space formed inside. The housing includes a front cover and a rear cover. The rear cover includes a hole located in a first region of the rear cover that corresponds to the space of the first coil, a first slit that extends from an edge of the rear cover to the hole, and a second slit spaced apart from the first slit and extending from the edge. One end of the second slit is located in a second region of the rear cover that corresponds to the first coil. In addition, various other embodiments recognized through the present specification are possible. 1. An electronic device comprising:a housing; anda first coil disposed in the housing, the first coil being wound around a space formed inside,wherein the housing includes a front cover and a rear cover, a hole located in a first region of the rear cover that corresponds to the space of the first coil;', 'a first slit extended from an edge of the rear cover to the hole; and', 'a second slit spaced apart from the first slit and extended from the edge, and, 'wherein the rear cover includeswherein one end of the second slit is located in a second region of the rear cover that corresponds to the first coil.2. The electronic device of claim 1 , wherein the rear cover further includes a third slit spaced apart from the first slit and extended from the edge claim 1 , andwherein the third slit is disposed on the opposite side to the second slit with respect to the first slit.3. The electronic device of claim 2 , wherein one end of the third slit is located in the second region.4. The electronic device of claim 2 , wherein the one end of the second slit and one end of the third slit are located at an outer periphery of the second region.5. The electronic device of claim 2 , wherein the one end of the second slit and one end of the third slit are located at an inner periphery of the second region. ...

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31-05-2018 дата публикации

Method and apparatus for protecting wireless power receiver from excessive charging temperature

Номер: US20180152052A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An apparatus and a method for are provided for a wireless power receiver. The method includes receiving power from a wireless power transmitter; measuring a temperature of a point in the wireless power receiver during reception of the wireless power; regulating the received power; identifying the temperature at a first time point; maintaining an amount of the regulated power to be provided to a battery with a first level if the identified temperature is lower than a preset temperature; decreasing the amount of the regulated power if the identified temperature is greater than or equal to the preset temperature; in response to decreasing the amount of the regulated power, identifying the temperature at a second time point after the first time point; and increasing the amount of the regulated power to the first level if the identified temperature at the second time point is lower than the preset temperature.

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09-06-2016 дата публикации

BISPHENOL A PREPARATION APPARATUS AND PREPARATION METHOD

Номер: US20160159716A1
Принадлежит:

Provided are an apparatus and a method for preparing bisphenol A. In the present invention, all or some of a mother liquid stream is circulated to a flash rector through a bypass line after crystallization in a process of preparing bisphenol A so as to increase a conversion rate of bisphenol A in a reactor, reduce energy, and use a heating source of phenol to be discharged to an upper side of the flash reactor, and thus the reaction efficiency of the whole process can be increased. 1. A bisphenol A preparing apparatus comprising:a main reactor that discharges a reaction product of a reaction between phenol and acetone through a reaction product stream;a flash reactor that separates the reaction product stream into a bisphenol A concentration stream and a phenol concentration stream;a bisphenol A purification unit that separates the bisphenol A concentration stream into a bisphenol A purification stream and a mother liquid stream and discharges the separated mother liquid stream to the main reactor; anda bypass line that introduces at least some of the separated mother liquid stream into the flash reactor.2. The bisphenol A preparing apparatus of claim 1 , further comprising:a heating source that supplies heat to the flash reactor.3. The bisphenol A preparing apparatus of claim 1 , further comprising:a recovery reactor that discharges a recovered reaction product, which is obtained by additionally reacting the mother liquid stream separated in the bisphenol A purification unit, to the main reactor through a recovered reaction product stream,wherein the bypass line is positioned between the recovery reactor and the main reactor.4. The bisphenol A preparing apparatus of claim 1 , further comprising:a dehydrator that is positioned between the main reactor and the flash reactor and separates the reaction product stream into a reactor reflux stream and a bisphenol A production stream.5. The bisphenol A preparing apparatus of claim 1 , wherein the bisphenol A purification ...

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11-06-2015 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING WIRELESS POWER

Номер: US20150162779A1
Принадлежит:

A method and apparatus are provided for transmitting wireless power in a wireless power network managed by a wireless power transmitter. The method includes transmitting a command signal, at stated periods, that controls the first wireless power receiver to report power information to the wireless power transmitter; determining whether a report signal corresponding to the command signal is received from the first wireless power receiver; and determining that the first wireless power receiver is removed from the wireless power network, when the report signal is not received from the first wireless power receiver after transmitting the command signal a predetermined number of times at the stated periods. 1. A method for transmitting wireless power to a first wireless power receiver and a second wireless power receiver in a wireless power network managed by a wireless power transmitter , the method comprising:transmitting a command signal, at stated periods, that controls the first wireless power receiver to report power information to the wireless power transmitter;determining whether a report signal corresponding to the command signal is received from the first wireless power receiver; anddetermining that the first wireless power receiver is removed from the wireless power network, when the report signal is not received from the first wireless power receiver after transmitting the command signal a predetermined number of times at the stated periods.2. The method of claim 1 , further comprising transmitting a notice signal including information about the wireless power transmitter at a regular cycle;wherein the stated period is the regular cycle.3. The method of claim 1 , wherein the predetermined number of times is three.4. The method of claim 1 , further comprising reducing charging power that is transmitted to the first wireless power receiver.5. The method of claim 1 , further comprising re-allocating a full cycle including a communication period for the first ...

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21-05-2020 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING WIRELESS POWER

Номер: US20200161899A1
Принадлежит:

A method and apparatus are provided for determining, by a wireless power transmitter, whether a wireless power receiver is removed from a wireless power network managed by the wireless power transmitter. The method includes transmitting a command signal to report power information of the wireless power receiver at stated periods; determining whether a report signal corresponding to the command signal is received from the wireless power receiver; and determining that the wireless power receiver is removed from the wireless power network, if the report signal is not received after transmitting the command signal a predetermined number of times at the stated periods. 1. A method for controlling a wireless power transmitter , the method comprising:periodically outputting a first power for detecting a load variation;based on detecting a first load variation caused by placement of a wireless power receiver within the wireless power transmitter while outputting the first power, continuously outputting a second power for communicating with the wireless power receiver;detecting a system error while outputting the second power;based on detecting the system error, providing an indication regarding the system error and periodically outputting the first power for detecting the load variation; anddetecting a second load variation indicating that the wireless power receiver is removed from the wireless power transmitter.2. The method of claim 1 , further comprising:detecting a load of a power transmitter of the wireless power transmitter; anddetecting a load variation of the power transmitter of the wireless power transmitter.3. The method of claim 2 , further comprising:storing a first value of the load of the power transmitter before the wireless power receiver is placed on a charging area; anddetecting a second value of the load of the power transmitter when the wireless power receiver is placed on the charging area,wherein detecting the load variation of the power transmitter ...

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06-06-2019 дата публикации

SIGNAL RECEIVING AND TRANSMITTING CIRCUIT AND ELECTRONIC DEVICE INCLUDING THE SAMESIGNAL RECEIVING AND TRANSMITTING CIRCUIT AND ELECTRONIC DEVICE INCLUDING THE SAME

Номер: US20190173290A1
Принадлежит:

A signal transmission and reception circuit is provided. The signal transmission and reception circuit includes a coil configured to receive power wirelessly supplied from the outside or output a specific signal wirelessly, a transmission and reception control module including a signal conversion switching circuit that is connected to the coil to rectify the wirelessly supplied power or convert a signal to be output and a driver that controls a switching state of the signal conversion switching circuit, and a filter configured to convert, the signal to be output, into a specific signal. 1. A portable electronic device supporting a communication function , comprising:a display having an input function;a coil;a battery; rectify power, which is supplied wirelessly, to charge the battery, and', 'invert power which is stored in the battery, to discharge through the coil wirelessly; and, 'a transmission and reception control circuit configured toa control circuit configured to control the transmission and reception control circuit, receive a user input for selecting a wireless power transmission mode via the display to output power stored in the battery to the external electronic device, and', 'in response to the user input, control the transmission and reception control circuit to complete a wireless power transmission path for outputting the power stored in the battery to the external electronic device., 'wherein the control circuit is configured to2. The portable electronic of claim 1 , wherein the receiving of the user input for selecting the wireless power transmission mode further comprises:output at least one of a menu or an icon to a display, andreceive the user input for selecting at least one of the menu or the icon to perform the wireless power transmission mode.3. The portable electronic of claim 1 , wherein the control circuit is further configured to:allocate a key button capable of switching from a wireless power reception mode to the wireless power ...

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02-07-2015 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING WIRELESS POWER

Номер: US20150188322A1
Принадлежит:

A method and apparatus are provided for determining, by a wireless power transmitter, whether a wireless power receiver is removed from a wireless power network managed by the wireless power transmitter. The method includes transmitting a command signal to report power information of the wireless power receiver at stated periods; determining whether a report signal corresponding to the command signal is received from the wireless power receiver; and determining that the wireless power receiver is removed from the wireless power network, if the report signal is not received after transmitting the command signal a predetermined number of times at the stated periods. 1. A method for determining , by a wireless power transmitter , whether a wireless power receiver is removed from a wireless power network managed by the wireless power transmitter , the method comprising:transmitting a command signal to report power information of the wireless power receiver at stated periods;determining whether a report signal corresponding to the command signal is received from the wireless power receiver; anddetermining that the wireless power receiver is removed from the wireless power network, if the report signal is not received after transmitting the command signal a predetermined number of times at the stated periods.2. The method of claim 1 , further comprising transmitting a notice signal including information about the wireless power transmitter at a regular cycle;wherein the stated period is the regular cycle.3. The method of claim 1 , wherein the predetermined number of times is three.4. The method of claim 1 , further comprising:reducing charging power; andapplying detection power for detecting an object.5. A wireless power transmitter for transmitting wireless power claim 1 , the wireless power transmitter comprising:a communication unit that transmits a command signal to report power information of a wireless power receiver, at stated periods; anda controller that ...

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02-07-2015 дата публикации

WIRELESS CHARGING APPARATUS AND METHOD

Номер: US20150188359A1
Принадлежит:

Methods and apparatus for wireless charging are provided. Transmission power transmitted from a wireless power transmitter is received at a power receiver of a wireless power receiver. A battery of the wireless power receiver is charged with the received transmission power. It is determined whether the battery is fully charged. A packet from a communication unit of the wireless power receiver is transmitted to the wireless power transmitter when the battery is fully charged. An auxiliary charge of the battery is performed by receiving strength-reduced transmission power from the wireless power transmitter. 1. A wireless power receiver comprising:a communication unit;a power receiver configured to receive transmission power transmitted from a wireless power transmitter;a battery configured to charge with the received transmission power; anda Power Management Integrated Circuit (PMIC) configured to determine whether the battery is fully charged, to control the communication unit to transmit a Charge Status (CS) packet to the wireless power transmitter when the battery is fully charged, and to perform an auxiliary charge of the battery by receiving strength-reduced transmission power from the wireless power transmitter.2. The wireless power receiver of claim 1 , wherein the CS packet is based on a Wireless Power Consortium (WPC) standard.3. The wireless power receiver of claim 2 , wherein the CS packet comprises information indicating a charge level and has a value of 1 to 100 claim 2 , and wherein the CS packet has a value of 0×63 indicating a value of 100 when the battery is fully charged.4. The wireless power receiver of claim 1 , further comprising a display configured to display a fully charged status of the battery when the battery is fully charged. This application is a continuation application of U.S. patent application Ser. No. 13/474,300, filed May 17, 2013, and claims priority under 35 U.S.C. §119(a) to a Korean Patent Application filed in the Korean ...

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06-07-2017 дата публикации

RESONANCE TERMINAL DEVICE FOR RESONANT WIRELESS POWER RECEPTION SYSTEM

Номер: US20170194818A1
Принадлежит:

A resonant wireless power reception apparatus includes a wireless near field communication (NFC) antenna for performing an NFC function through an NFC frequency band, a resonator for receiving resonant wireless power using a resonance frequency different from the NFC frequency band, the resonator being installed adjacent to the NFC antenna, and a high impedance circuit for filtering a signal having the NFC frequency band provided from the NFC antenna, the high impedance circuit being connected to the resonator. 1. A resonant wireless power reception apparatus , comprising:a wireless near field communication (NFC) antenna for performing an NFC function through an NFC frequency band;a resonator for receiving resonant wireless power using a resonance frequency different from the NFC frequency band, the resonator being installed adjacent to the NFC antenna; anda high impedance circuit for filtering a signal having the NFC frequency band provided from the NFC antenna, the high impedance circuit being connected to the resonator.2. The resonant wireless power reception apparatus of claim 1 , further comprising:a shunt capacitor connected between two terminals of the resonator and having a preset capacity.3. The resonant wireless power reception apparatus of claim 2 , wherein the high impedance circuit is installed at a front side or a rear side of the shunt capacitor.4. The resonant wireless power reception apparatus of claim 3 , wherein the high impedance circuit comprises a band stop filter (BSF) that is applied to both terminals of the resonator.5. The resonant wireless power reception apparatus of claim 1 , wherein the resonator includes two terminals claim 1 , and the high impedance circuit comprises a band stop filter (BSF) that is applied to both terminals of the resonator.6. The resonant wireless power reception apparatus of claim 1 , wherein the NFC antenna is mechanically disposed inside the resonator. This application is a Continuation of U.S. patent application ...

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19-07-2018 дата публикации

METHOD FOR PREPARING MAGNETIC IRON OXIDE-GRAPHENE COMPOSITE

Номер: US20180206366A1
Принадлежит: LG CHEM, LTD.

The present invention relates to a method for preparing a magnetic iron oxide-graphene composite, a magnetic iron oxide-graphene composite prepared thereby and a composition for electromagnetic wave shielding including the same, and since graphene is prepared from a stage 1-GIC using FeCl, magnetic particles in the form of FeOare naturally formed on the surface of graphene during the preparation process. In addition, a magnetic material is formed on the surface of graphene while the defects of graphene are minimized, and thus the magnetic iron oxide-graphene composite prepared according to the present invention can be useful as an electromagnetic wave absorber. 1. A method for preparing a magnetic iron oxide-graphene composite comprising the steps of:mixing graphite and a halogen salt of iron and heat-treating the same (Step 1);{'sub': '1-20', 'reacting the product of step 1 with a (Calkyl) amine (Step 2);'}washing the product of step 2 (Step 3);subjecting the product of step 3 to a high-speed homogenization (Step 4); andsubjecting the product of step 4 to sonication or a high-pressure homogenization (Step 5).2. The method according to claim 1 ,{'sub': 3', '2, 'wherein the halogen salt of iron is FeCl, FeCl, or a mixture thereof.'}3. The method according to claim 1 , wherein claim 1 , in step 1 claim 1 , the weight ratio between graphite and halogen salt of iron is 1:1 to 1:10.4. The method according to claim 1 , wherein the heat treatment is carried out at 300° C. to 400° C.5. The method according to claim 1 , wherein the step 1 is carried out for 24 hours or more.6. The method according to claim 1 , wherein (Calkyl) amine is hexylamine claim 1 , or dodecylamine.7. The method according to claim 1 , wherein the step 2 is carried out at 30° C. to 250° C. for 6 hours or more.8. The method according to claim 1 , wherein the high-speed homogenization of step 4 is carried out by stirring the product of Step 2 at 3000 to 8000 rpm.9. The method according to claim 1 , ...

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26-07-2018 дата публикации

PORTABLE TERMINAL HAVING WIRELESS CHARGING MODULE

Номер: US20180212473A1
Принадлежит:

A portable terminal is provided, including a cover member which is detachably provided at a rear surface of a main body of a terminal, a resonant antenna for a reception unit provided inside of the cover member, a reception circuit unit provided inside of the main body, and a connection unit for connecting the resonant antenna for a reception unit with the reception circuit unit. The portable terminal efficiently receives the signal power provided from a charger by arranging the resonant antenna inside of the cover member, and minimizes the thickness of the portable terminal by providing the reception circuit unit inside of the main body of the terminal. 1: An electronic device , comprising:a housing;an antenna provided at an inside of the housing and configured to receive a first power based on an electromagnetic field provided from an external charger device;a circuit board including a receiving circuit, wherein the receiving circuit is configured to convert the first power received by the antenna into a second power for charging a battery of the electronic device; anda connection circuit configured to electrically connect the antenna and the receiving circuit, a connection pad located at one end of a flexible printed circuit board (FPCB) and electrically connected to the antenna; and', 'a connection terminal configured to physically contact the connection pad and electrically connected to the receiving circuit., 'wherein the connection circuit comprises2: The electronic device of claim 1 , wherein the antenna is configured as a resonator.3: The electronic device of claim 1 , wherein the antenna is attached by an electromagnetic shield to the inside of the housing.4: The electronic device of claim 1 , further comprising another antenna for near field communication at the inside of the housing.5: The electronic device of claim 4 , wherein the another antenna is concealed by an electromagnetic shield which attaches the antenna to the inside of the housing.6: The ...

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16-10-2014 дата публикации

Apparatus and Method for Battery Balancing

Номер: US20140306666A1
Принадлежит: SK INNOVATION CO., LTD.

Provided are an apparatus and a method for battery balancing, and more particularly, an apparatus and a method for battery balancing capable of implementing balancing between batteries which are connected in parallel by controlling a power relay assembly. 1. An apparatus for battery balancing , comprising:a plurality of batteries including positive terminals and negative terminals;a plurality of power relay assemblies including precharge resistors, a plurality of relays, input terminals, and output terminals and electrically connecting or disconnecting the input terminals to or from the output terminals, the input terminals being connected to the positive terminals and the negative terminals of the batteries; anda manager connected to each of the batteries and the power relay assemblies, monitoring a state of each of the batteries, and determining a balancing mode at the time of the occurrence of the battery of which the voltage unbalance is sensed to control the power relay assembly,wherein the output terminals of the power relay assemblies are connected in parallel.2. The apparatus of claim 1 , wherein the power relay assembly includes:an input terminal including a positive input terminal connected to the positive terminal of the battery and a negative input terminal connected to the negative terminal of the battery;an output terminal including a positive output terminal connected to the outside and a negative output terminal connected to the outside;a first main relay connected to the positive terminal of the battery in series and cutting off a current applied from the battery;a second main relay connected to the negative terminal of the battery in series and cutting off a current applied from the battery; anda precharge unit connected to the first main relay or the second main relay in parallel and including a precharge resistor and a precharge relay, the precharge resistor and the precharge relay being connected in series.3. The apparatus of claim 1 , wherein ...

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03-08-2017 дата публикации

PARTIALLY OXIDIZED GRAPHENE AND METHOD FOR PREPARING SAME

Номер: US20170217775A1
Принадлежит: LG CHEM, LTD.

The present invention relates to a partially oxidized graphene and a method for preparing the same. Since the partially oxidized graphene is prepared by subjecting the partially oxidized graphite to a high pressure homogenization, the exfoliation efficiency is excellent, the inherent characteristics of graphene are maintained even without using a reduction step after exfoliation, and the dispersibility thereof in organic solvents is excellent, and thus the invention can be applied to various fields. 1. A partially oxidized graphene having:an oxygen/carbon (O/C) atomic ratio of 5 to 20%,an average size (lateral size) of 100 nm to 20 μm, anda thickness of 0.34 nm to 30 nm.2. The partially oxidized graphene according to claim 1 , whereinthe partially oxidized graphene has a ratio of D/G in the Raman spectra of 0.12 to 0.5.3. A method for preparing a partially oxidized graphene claim 1 , comprising a step of passing a feed solution including partially oxidized graphite through a high-pressure homogenizer including an inlet claim 1 , an outlet claim 1 , and a micro-channel that connects between the inlet and the outlet and has a diameter in a micrometer scale claim 1 ,wherein the partially oxidized graphene has an oxygen/carbon (O/C) atomic ratio of 5 to 20%.4. The method for preparing graphene according to claim 3 , whereinthe partially oxidized graphite may be prepared by oxidizing a pristine graphite with at least one acidic solution selected from the group consisting of nitric acid and sulfuric acid.5. The method for preparing graphene according to claim 4 , whereinthe oxidation time is 2 to 30 hours.6. The method for preparing graphene according to claim 3 , whereinthe concentration of the partially oxidized graphite in the feed solution is 0.05 to 100 mg/mL.7. The method for preparing graphene according to claim 3 , whereinthe solvent of the feed solution is one or more selected from the group consisting of water, NMP (N-methyl-2-pyrrolidone), acetone, DMF (N,N- ...

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02-08-2018 дата публикации

PORTABLE TERMINAL HAVING A WIRELESS CHARGER COIL

Номер: US20180219417A1
Принадлежит:

A portable terminal is provided. The portable terminal includes a shielding member attached to an inner surface of an external part, a shielding wall formed on the shielding member, a first coil attached to a surface of the shielding member that faces the inner surface of the external part, and a second coil attached to the surface of the shielding member, with the second coil surrounds the first coil on a same plane and the shielding wall being disposed between the first and second coil. 1: An electronic device comprising:a camera module;a battery;a circuit board;a housing including an opening for the camera module;a first coil, provided at an inside of the housing, for generating power based on an energy field provided from a wireless power transmitting device;a second coil, provided at the inside of the housing, for use in performing near field communication (NFC);circuitry comprising a first circuit and a second circuit, wherein the first circuit is configured to control charging of the battery using the power generated at the first coil, and the second circuit is configured to control performing of the NFC through the second coil, wherein the circuitry is located at the circuit board;a magnetic shield disposed between the circuitry and at least one of the first coil and the second coil; andfirst coil connection ends and second coil connection ends provided at the inside of the housing and respectively connected to the first coil and the second coil,wherein the first coil connection ends end and the second coil connection ends are respectively connected to the first circuit and the second circuit via a connector terminal.2: The electronic device of claim 1 ,wherein the first coil is a secondary coil for inductive coupling the wireless power transmitting device.3: The electronic device of claim 1 , further comprisinga battery mounting recess formed on the back surface of the housing of the electronic device; anda cover detachably coupled to the housing and ...

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02-07-2020 дата публикации

WIRELESS CHARGING APPARATUS AND METHOD

Номер: US20200212727A1
Принадлежит:

Methods and apparatus for wireless charging are provided. Transmission power transmitted from a wireless power transmitter is received at a power receiver of a wireless power receiver. A battery of the wireless power receiver is charged with the received transmission power. It is determined whether the battery is fully charged. A packet from a communication unit of the wireless power receiver is transmitted to the wireless power transmitter when the battery is fully charged. An auxiliary charge of the battery is performed by receiving strength-reduced transmission power from the wireless power transmitter. 1: A mobile terminal comprising:a coil;a battery;a display;a communication unit; receive first power from a wireless power transmitter through the coil to provide the received first power to a power management integrated circuit, PMIC, and', 'receive second power from the wireless power transmitter through the coil to provide the received second power to the PMIC while the battery is in a fully charged state, wherein the second power is lower than the first power and the second power is continuously transmitted from the wireless power transmitter without being interrupted, the PMIC configured to:', 'perform charging of the battery based on the provided first power, and', 'while the battery is in the fully charged state, perform an auxiliary charging of the battery based on the provided second power having a predetermined voltage, wherein the power receiver is adapted to keep the predetermined voltage provided to the PMIC during the fully charged state, wherein the auxiliary charging is performed to supplement power that is self discharged,, 'a power receiver configured to control the communication unit to send a message indicating the fully charged state of the battery to the wireless power transmitter upon receiving a full charge message from the PMIC, and', 'upon receiving the full charge message from the PMIC, control to display a full charge status on the ...

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20-08-2015 дата публикации

METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER OF A RECEIVER IN A WIRELESS POWER TRANSMISSION/RECEPTION SYSTEM

Номер: US20150236521A1
Принадлежит:

A method and apparatus are provided for controlling power in a wireless power transmission/reception system. The method includes receiving power information from a receiver entering a charging area; determining whether power can be supplied to the receiver, based on the power information; and if the power can be supplied to the receiver, transmitting, to the receiver, a response indicating that the power can be supplied to the receiver. 1. A method for managing wireless power at an electronic device , the method comprising:receiving power information from a receiver entering a charging area;determining whether power can be supplied to the receiver, based on the power information; andif the power can be supplied to the receiver, transmitting, to the receiver, a response indicating that the power can be supplied to the receiver.2. The method of claim 1 , wherein the response includes information about an available quantity power of the electronic device.3. The method of claim 1 , wherein the response includes a total power quantity capable of being supplied to the receiver from the electronic device.4. The method of claim 1 , wherein determining whether the power of the receiver can be supplied to the receiver comprises:determining remaining power of the electronic device; anddetermining whether the remaining power is larger than power to be supplied to the receiver.5. The method of claim 4 , further comprising claim 4 , if the remaining power is larger than the power to be supplied to the receiver claim 4 , determining that the power of the receiver can be supplied to the receiver.6. The method of claim 5 , further comprising claim 5 , if the remaining power is not larger than the power to be supplied to the receiver claim 5 , determining that the power of the receiver cannot be supplied to the receiver.7. The method of claim 1 , further comprising claim 1 , if the power cannot be supplied to the receiver claim 1 , transmitting a request to wait for another response ...

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18-07-2019 дата публикации

PORTABLE TERMINAL HAVING A WIRELESS CHARGER COIL AND AN ANTENNA ELEMENT ON THE SAME PLANE

Номер: US20190222063A1
Принадлежит:

A portable terminal is provided. The portable terminal includes a shielding member attached to an inner surface of an external part, a shielding wall formed on the shielding member, a first coil attached to a surface of the shielding member that faces the inner surface of the external part, and a second coil attached to the surface of the shielding member, with the second coil surrounds the first coil on a same plane and the shielding wall being disposed between the first and second coil. 1. An electronic device comprising:a battery;a circuit board;a first coil, provided at an inside of the electronic device, for generating power based on an energy field provided from a wireless power transmitting device;a second coil, provided at the inside of the electronic device, for use in performing near field communication (NFC);circuitry comprising a first circuit and a second circuit, wherein the first circuit is configured to control charging of the battery using the power generated at the first coil, and the second circuit is configured to control performing of the NFC through the second coil, wherein the circuitry is located at the circuit board;a magnetic shield disposed between the circuitry and at least one of the first coil or the second coil; andfirst coil connection ends and second coil connection ends provided at the inside of the electronic device and respectively connected to the first coil and the second coil,wherein the first coil connection ends and the second coil connection ends are respectively connected to the first circuit and the second circuit via a plurality of terminals.2. The electronic device of claim 1 ,wherein the first coil is a secondary coil for inductive coupling the wireless power transmitting device.3. The electronic device of claim 1 , wherein the first circuit includes a wireless charging control circuit claim 1 , andwherein the first coil is connected to the battery via the wireless charging control circuit.4. The electronic device of ...

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25-07-2019 дата публикации

Electroplating solution for lithium metal, and method for manufacturing lithium metal electrode by using same

Номер: US20190226109A1
Принадлежит: LG Chem Ltd

An electroplating solution for lithium metal, and a method for preparing a lithium metal electrode using the same, and in particular, while preparing a lithium metal electrode using electroplating, a lithium metal electrode having enhanced surface properties may be prepared by electroplating using a plating solution including a lithium nitrogen oxide and a metal nitrogen oxide, and, by using such a lithium metal electrode in a battery, lifetime properties of the battery may be enhanced.

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06-11-2014 дата публикации

METHOD AND APPARATUS FOR CONTROLLING ABNORMAL CONDITION IN WIRELESS POWER RECEIVER

Номер: US20140327393A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method for controlling an abnormal state of a wireless Power Receiving Unit (PRU) is provided. The method includes measuring a temperature by a period shorter than a previous measurement period when a temperature measured by the wireless PRU in response to a transmission of power from a wireless Power Transmitting Unit (PTU) is higher than a temperature required to be monitored; determining whether the measured temperature is higher than a temperature at which a load switch connected to a charging unit is turned off if the measured temperature is equal to or higher than the temperature required to be monitored; and turning off the load switch if the measured temperature is higher than the temperature at which the load switch is turned off. 1. A method for controlling an abnormal condition of a wireless Power Receiving Unit (PRU) , the method comprising:measuring a temperature of the wireless PRU by a period shorter than a previous measurement period when a temperature measured by the wireless PRU in response to a transmission of power from a wireless Power Transmitting Unit (PTU) is higher than a temperature required to be monitored;determining whether the measured temperature is higher than a temperature at which a load switch connected to a charging unit is turned off if the measured temperature is equal to or higher than the temperature required to be monitored; andturning off the load switch if the measured temperature is higher than the temperature at which the load switch is turned off.2. The method as claimed in claim 1 , further comprising:determining whether the measured temperature is higher than a predetermined over-temperature, after the load switch is turned off; andnotifying wireless PTU of an over-temperature state so that the wireless PTU interrupts the transmission of the power, if it is determined that the measured temperature is higher than the predetermined over-temperature.3. The method as claimed in claim 1 , further comprising:notifying of a ...

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