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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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Применить Всего найдено 49. Отображено 49.
20-03-2018 дата публикации

포락선 신호 처리 장치 및 방법

Номер: KR0101840536B1
Автор: 장승현, 박봉혁, 이희동
Принадлежит: 한국전자통신연구원

... 전력 증폭기의 입력 신호와 출력 신호의 차이값에 따라 포락선 신호에 적용되는 증폭 이득을 결정하는 신호 처리 장치가 제공된다. 상기 신호 처리 장치는 전력 증폭기의 입력 신호 및 출력 신호 사이의 진폭 크기의 차이값을 계산하여 이득 제어 신호를 생성하는 계산부 및 입력된 상기 이득 제어 신호에 따라 상기 입력 신호의 포락선 신호(envelope signal)에 적용되는 이득(gain)을 결정하고, 상기 포락선 신호의 크기를 조정하는 증폭부를 포함할 수 있다.

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Номер записи: 1
27-09-2017 дата публикации

ENVELOPE SIGNAL TIME DELAY ADJUSTING APPARATUS FOR ENVELOPE-TRACKING POWER AMPLIFIER

Номер: KR1020170108407A
Автор: JANG, SEUNG HYUN, PARK, BONG HYUK, LEE, HUI DONG
Принадлежит:

The present invention relates to an envelope signal time delay adjusting apparatus which minimizes a time delay of an envelope-tacking modulator. The envelope signal time delay adjusting apparatus comprises: a negative group delay unit for converting an envelope signal received by a signal generator into an envelope signal having a group delay of a negative value whose frequency increases after a predetermined frequency band, and outputting the envelope signal; an envelope-tracking modulation unit for amplifying the envelope signal output from the negative group delay unit with power, and outputting the envelope signal; and a frequency limitation unit for limiting a bandwidth of the envelope-tracking modulation unit to be lower than an original bandwidth. COPYRIGHT KIPO 2017 (10) Signal generator (100) Envelope signal time delay adjusting apparatus (110) Negative group delay unit (111) Frequency determination unit (112) Negative group delay auxiliary unit (120) Envelope-tracking modulation ...

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Номер записи: 2
29-06-2017 дата публикации

TRANSCEIVER FOR RF SYSTEM

Номер: KR1020170074159A
Автор: KANG, BYUNG SU, KWON, HEON KOOK, PARK, BONG HYUK
Принадлежит:

The present invention relates to a transceiver for an RF system, wherein the transceiver transceives signals through an antenna array between an RF system and an external environment. The transceiver comprises: a transceiving unit for providing transmission signals from the RF system toward the antenna array, and providing reception signals from the antenna array toward the RF system; an external signal receiving unit for receiving external signals from an antenna other than an antenna used for communications of the transceiving unit among antennas in the antenna array, and providing the external signals to the RF system; and a switching unit for providing transmission signals from the transceiving unit to the antenna array through a switching operation, providing reception signals from the antenna array to the transceiving unit, and providing external signals from the antenna array to the external signal receiving unit. A loss of a transmission rate can be minimized. COPYRIGHT KIPO 2017 ...

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Номер записи: 3
18-09-2018 дата публикации

저전력 고주파 증폭기

Номер: KR0101899922B1
Автор: 공선우, 박봉혁, 이문식, 이희동
Принадлежит: 한국전자통신연구원

... 이하, 저전력 고주파 증폭기가 개시된다. 실시예에 따른 저전력 고주파 증폭기는 1 트랜지스터; 제2 트랜지스터; 제1 트랜지스터의 드레인과 제2 트랜지스터의 소스에 연결되는 제1 인덕터; 제1 트랜지스터의 게이트와 제2 트랜지스터의 소스에 연결되는 제2 인덕터; 및 제2 트랜지스터의 게이트에 연결되는 제3 인덕터를 포함하고, 제1 트랜지스터의 게이트는 입력단과 연결되고 제2 트랜지스터의 드레인은 출력단과 연결되며 제1 트랜지스터의 소스는 그라운드로 연결될 수 있다.

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Номер записи: 4
07-12-2016 дата публикации

JAMMING SIGNAL PROCESSING DEVICE, JAMMING SIGNAL PROCESSING METHOD, AND TRANSMISSION/RECEPTION SYSTEM

Номер: KR1020160139788A
Автор: JUNG, JAE HO, PARK, BONG HYUK
Принадлежит:

A jamming signal processing device according to an embodiment of the present invention can comprise: a first filter which generates a first removal signal from a transmission signal based on first control information; a second filter which generates a second removal signal from the transmission signal based on second control information; a coupling unit which combines the first jamming signal with the first removal signal and combines a second jamming signal, which is generated by combining the first jamming signal with the first removal signal, with a second jamming signal; and a control unit which generates the first control information by using the first jamming signal and the transmission signal and generates the second control information by using the second jamming signal and the transmission signal. According to the present invention, the jamming signal, which is generated from the transmission signal, can be effectively removed. COPYRIGHT KIPO 2016 (110) First filter (120) Second ...

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Номер записи: 5
01-09-2017 дата публикации

TERMINAL AND BEAMFORMING METHOD BY INTEGRATING SENSOR INFORMATION THEREOF

Номер: KR1020170099684A
Автор: LEE, JU YUL, KIM, MYUNG DON, PARK, BONG HYUK, PARK, JAE JOON
Принадлежит:

Disclosed are a beamforming method in a terminal and the terminal performing the same. The beamforming method of a terminal according to the embodiment can comprise the steps of: acquiring a beamforming signal; calculating a beamforming coefficient to correspond to the transceiver position based on the beamforming signal; acquiring sensor information of a terminal; estimating a channel parameter based on sensor information; and determining a final beamforming coefficient by using the beamforming coefficient and the channel parameter. COPYRIGHT KIPO 2017 (610) Acquiring a beamforming signal (620) Calculating a beamforming coefficient to correspond to a transceiver position based on the beamforming signal (630) Acquiring sensor information of a terminal (640) Estimating a channel parameter based on the sensor information (650) Determining a final beamforming coefficient by using the beamforming coefficient and the channel parameter (AA) Start (BB) End ...

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Номер записи: 6
05-08-2016 дата публикации

ENVELOPE SIGNAL DELAY CONTROL DEVICE FOR ENVELOPE-TRACKING POWER AMPLIFIER AND METHOD THEREOF

Номер: KR1020160092644A
Автор: JANG, SEUNG HYUN, PARK, BONG HYUK, RYU, NAM SIK, KWON, DONG SEUNG
Принадлежит:

According to an embodiment of the present invention, an envelope signal delay control device for an envelope-tracking power amplifier includes: an envelope signal provider which provides an envelope signal; a variable negative group delay unit which controls group delay of the envelope signal received from the envelope signal provider and outputs the result; an envelope modulator which modulates an envelope signal outputted from the variable negative group delay unit; a group delay difference detector which detects a difference between the envelope signal outputted from the envelope signal provider and the envelope signal outputted from the envelope modulator; and a control signal generator which generates a signal for controlling the group delay value of the variable negative group delay unit according to the group delay difference. COPYRIGHT KIPO 2016 (110) Envelope signal provider (120) Variable negative group delay unit (130) Envelope modulator (140) Group delay difference detector ...

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Номер записи: 7
03-07-2017 дата публикации

APPARATUS AND METHOD FOR SEPARATING TRANSMITTING SIGNAL AND RECEIVING SIGNAL

Номер: KR1020170075632A
Автор: JUNG, JAE HO, KANG, BYUNG SU, PARK, BONG HYUK
Принадлежит:

An objective of the present invention is to provide an apparatus and method for separating a transmitting signal and a receiving signal to remove a transmitting signal flowing into a receiving antenna by using one transmitting antenna and at least two receiving antennas. To this end, the apparatus for separating a transmitting signal according to the present invention includes a transmitting part for outputting transmission data to a wireless communication network; and a transmitting signal and a receiving signal separating part including at least two receiving antennas and removing a leakage transmission signal among radio signals received through the receiving antennas by using a weight given to the leakage transmission signal transmitted from the transmitting part. COPYRIGHT KIPO 2017 (AA) Weight w1 (BB) Weight w2 ...

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Номер записи: 8
27-04-2016 дата публикации

OSCILLATION CIRCUIT AND TRANSMITTER INCLUDING OSCILLATION CIRCUIT

Номер: KR1020160045240A
Автор: LEE, HUI DONG, PARK, BONG HYUK, LEE, MOON SIK
Принадлежит:

The present invention is to provide a transmitter including an oscillation circuit which is operated at a high speed with low power. The oscillation circuit according to an embodiment of the present invention comprises: a voltage regulator which adjusts the magnitude of power voltage in accordance with a digital signal; an LC tank circuit which is connected between a first node and a second node and generates a resonance signal on the basis of the power voltage with the adjusted magnitude; and a differential amplification circuit which oscillates the resonance signal or deforms an oscillation state and outputs first and second output voltage signals to the first node and the second node, respectively. COPYRIGHT KIPO 2016 (510) Signal deformation unit (530) Matching circuit (AA) Digital signal ...

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Номер записи: 9
12-07-2016 дата публикации

LOCAL OSCILLATOR

Номер: KR1020160083798A
Автор: KWON, HEON KOOK, KANG, BYUNG SU, PARK, BONG HYUK
Принадлежит:

The present invention relates to a local oscillator. The local oscillator according to the present invention comprises: a fixed frequency oscillator for generating a fixed frequency signal having an integer multiple of a frequency interval between multiple carrier frequencies; a frequency divider for dividing the fixed frequency signal at a fixed ratio; a mixer for mixing the frequency signal divided through the frequency divider and a center frequency signal to output the mixed signal; a first switch for selecting and outputting either the signal mixed through the mixer or the center frequency signal; a center frequency oscillator for generating the center frequency signal; and a second switch for switching the center frequency signal outputted from the center frequency oscillator to either the mixer or the first switch, wherein the center frequency signal is located at the center for the entire bandwidth of the multiple carrier frequencies. Therefore, the local oscillator according to ...

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Номер записи: 10
03-08-2016 дата публикации

APPARATUS AND METHOD FOR CALIBRATING ERROR IN ARRAY ANTENNA SYSTEM

Номер: KR1020160091748A
Автор: JUNG, JAE HO, KWON, HEON KOOK, PARK, BONG HYUK
Принадлежит:

An apparatus for calibrating an error in an array antenna system according to an embodiment of the present invention, which is an apparatus for calibrating an error in an array transmission antenna system having a plurality of array antennas, comprises: a calibration signal generator for generating an error calibration signal as a single frequency signal in an area which does not interfere with a passband of a transmitted signal; an array RF transmitter for upwardly converting the transmitted signal into an RF band to transmit the converted signal to the plurality of array antennas; an error calibration estimator for correlating the error calibration signal and the receiving single frequency signal received by passing through the array RF transmitter to estimate a transfer function of the array RF transmitter and extract a filter coefficient by using the estimated transfer function; and a complex filter for calibrating an error of the transmitted signal by applying the filter coefficient ...

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Номер записи: 11
31-08-2017 дата публикации

VERTICAL PIN DIODE

Номер: KR1020170099286A
Автор: KIM, CHEOL HO, KWON, DONG SEUNG, PARK, BONG HYUK, CHO, YOUNG KYUN
Принадлежит:

Disclosed is a vertical pin diode for a solid plasma antenna. The vertical pin diode comprises: a semiconductor substrate which comprises a P-type area, an intrinsic area, and an N-type area arranged in order in a vertical direction and formed therein; a first electrode formed on one side of the semiconductor substrate to come in electric contact with the P-type area; a second electrode formed on the other side of the semiconductor substrate to come in electric contact with the N-type area. The P-type area and the N-type area are arranged to face each other on upper and lower surfaces of the semiconductor substrate, respectively. The present invention is to provide the vertical pin diode, which can be manufactured in an easy manner and does not have a problem of electric wave interference. COPYRIGHT KIPO 2017 ...

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Номер записи: 12
20-08-2018 дата публикации

ENVELOPE DETECTION CIRCUIT

Номер: KR1020180092706A
Автор: JANG, SEUNG HYUN, PARK, BONG HYUK
Принадлежит:

The present invention provides an envelope detection circuit capable of suppressing that an output signal is saturated. The envelope detection circuit comprises: a first square circuit outputting current corresponding to a square signal obtained by squaring an input signal; a variable attenuator attenuating magnitude of the input signal; a second square circuit outputting current corresponding to a square signal obtained by squaring the output signal of the variable attenuator; a current circuit connected to the first square circuit and the second square circuit, receiving the signals, and differentially supplying bias current to the first square circuit and the second square circuit according to each input signal; a differential input amplifier differentially receiving the output current of the first and second square circuits and amplifying to output the output current; and a signal eliminator receiving an output signal of the differential input amplifier and removing and outputting the ...

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Номер записи: 13
20-08-2015 дата публикации

APPARATUS AND METHOD FOR GENERATING DIFFERENTIAL SIGNAL, TRANSMISSION APPARATUS INCLUDING SAME, AND METHOD INCLUDING SAME

Номер: KR1020150095087A
Автор: CHO, YOUNG KYUN, LEE, SUNG JUN, JANG, SEUNG HYUN, PARK, BONG HYUK, JUNG, JAE HO, LEE, KWANG CHUN
Принадлежит:

Disclosed is a technology related to a transmission apparatus. A method for generating a differential signal includes the steps of: generating a first signal having the size same with the size of an envelope signal referring to 0 as a reference value by offsetting the envelope signal; generating a second signal by scaling the first signal at a predetermined ratio; generating a third signal, which is a reversed second signal, by converting the second signal; and generating the differential signal by using the second signal and the third signal. COPYRIGHT KIPO 2015 (AA) Start (BB) End (S210) Input an envelop signal (S220) Generate a first signal by adding predetermined offset to the envelope signal (S230) Generate a second signal by scaling the first signal at a predetermined ratio (S240) Generate a third signal by zero-crossing the second signal (S250) Generate a differential signal by using the second signal and the third signal (S260) Generate a differential signal to which common mode ...

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Номер записи: 14
03-07-2017 дата публикации

ANTENNA FOR FORMING TILTED BEAM USING RADIATION PATTERN SYNTHESIS

Номер: KR1020170075626A
Автор: KIM, DONG HO, KANG, BYUNG SU, KO, JUN BONG, PARK, BONG HYUK, PARK, JANG SOON
Принадлежит:

The present invention relates to an antenna for forming a tilted beam. The antenna includes: a substrate; a radiator, a probe, and a transmission line formed on one surface of the substrate; and a ground surface formed on the other surface of the substrate. The length of the radiator in a y direction is shorter than the length of the radiator in an x direction, and a ratio of the length in the y direction and the length in the x direction of the radiator is adjusted, thereby separating and radiating the radiated beam. Accordingly, the present invention can reduce the size of the antenna by tilting the beam without using an array antenna method or an RF device. COPYRIGHT KIPO 2017 ...

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Номер записи: 15
30-07-2018 дата публикации

CONTINUOUS TIME DELTA-SIGMA MODULATOR FOR SUPPORTING MULTIPLE MODES

Номер: KR1020180085996A
Автор: CHO, YOUNG KYUN, PARK, BONG HYUK
Принадлежит:

A delta-sigma modulator is disclosed. The delta-sigma modulator comprises: a loop filter which integrates and outputs a difference between an input signal and an analog signal; a quantizer which quantizes and outputs a signal outputted from the loop filter; and a digital-to-analog converter (DAC) which outputs the analog signal by performing digital-to-analog conversion on a signal outputted from the quantizer. Accordingly, difference conversion of the loop filter included in the delta-sigma modulator is possible, and thus it is possible to enable a stable output at a wide sampling frequency. COPYRIGHT KIPO 2018 ...

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Номер записи: 16
18-06-2018 дата публикации

MULTI-STAGE AMPLIFIER HAVING IMPROVED LINEARITY AND EFFICIENCY BY APPLYING ADAPTIVE POWER SUPPLY VOLTAGE

Номер: KR1020180065930A
Автор: LEE, HUI DONG, KONG, SUN WOO, KIM, CHEOL HO, PARK, BONG HYUK
Принадлежит:

Disclosed is a multi-stage amplifier to which power supply voltage is adaptively supplied. The multi-stage amplifier to which the power supply voltage is adaptively supplied comprises: a plurality of power amplifiers sequentially amplifying and outputting an input signal through a plurality of steps; a detector detecting an output of the power amplifier belonging to the selected step among the plurality of steps; and a voltage controller adaptively supplying the voltage applied to the power amplifier belonging to one of the previous step of the final step of the plurality of steps according to the output detected by the detector. Therefore, linearity and power efficiency of the power amplifier can be improved. COPYRIGHT KIPO 2018 (111) Detector (AA) Controller and switch ...

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Номер записи: 17
08-07-2016 дата публикации

ANTENNA STRUCTURE

Номер: KR1020160082459A
Автор: KIM, CHEOL HO, LEE, KWANG CHUN, KWON, DONG SEUNG, PARK, BONG HYUK
Принадлежит:

An antenna structure comprises: a substrate; and a radiation unit, a reflection unit, and a waveguide unit provided onto the substrate and configured to transceive, reflect, and guide a radio wave having a first wavelength, respectively. The radiation unit comprises: a first region having a first length in a first direction in parallel with an upper surface of the substrate; and a second region having the first length in the first direction and separated from the first region in the first direction. The first region and the second region are PIN diodes formed by being doped in an upper portion of the substrate, respectively. COPYRIGHT KIPO 2016 ...

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Номер записи: 18
08-07-2016 дата публикации

BIDIRECTIONAL TRANSIVER

Номер: KR1020160082228A
Автор: KONG, SUN WOO, KANG, BYUNG SU, PARK, BONG HYUK
Принадлежит:

The present invention provides a bidirectional transceiver to minimize signal loss in a transceiving terminal. The bidirectional transceiver comprises: a signal processing unit processing a transmitting signal and a receiving signal; a signal transceiving unit connecting to a plurality of antennas through at least one first unit module, and transmitting the transmitting signal to the plurality of antennas and receiving the receiving signal from the plurality of antennas through transmitting and receiving path control of the first unit module; and a signal input/output unit connecting between the signal processing unit and the signal transceiving unit, and outputting the transmitting signal to the signal transceiving unit and outputting the receiving signal to the signal processing unit through transmitting and receiving path control of at least one second unit module. The first and the second unit module individually comprise: a reference signal line; additional signal lines placed in both ...

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Номер записи: 19
03-08-2015 дата публикации

POWER AMPLIFYING APPARATUS

Номер: KR1020150088472A
Автор: PARK, BONG HYUK, JUNG, JAE HO, LEE, KWANG CHUN
Принадлежит:

Disclosed is a technology related to a switching power amplifying apparatus having high efficiency. The power amplifying apparatus includes: a power amplifying unit which amplifies the power of a plurality of input signals individually; a signal conversing unit which converts the output signals of the power amplifying unit into single ended signals; and a signal restoring unit which restores the single ended signals to signal forms before the input signals. COPYRIGHT KIPO 2015 (500) Load (AA) + Signal (BB) - Signal (400) Signal Restorating unit (300) Signal converting unit (200) Power amplifying unit ...

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Номер записи: 20
07-04-2016 дата публикации

CENTRAL CONTROL STATION DEVICE, REMOTE BASE STATION DEVICE, AND COMMUNICATION METHOD FOR SAME

Номер: KR1020160038547A
Автор: JANG, SEUNG HYUN, PARK, BONG HYUK, KWON, DONG SEUNG
Принадлежит:

The present invention relates to a central control station device, a remote base station device, and a communication method for the same, which can be used for a radio over fiber (RoF) technology. Various embodiments of the present invention can provide a central control station device and a communication method, allowing an analog signal to be converted to a signal that has a carrier wave of an intermediate frequency, and the signal to be converted to a digital signal for transmission to a remote control station device. In addition, the various embodiments of the present invention can provide a remote base station device and a communication method, allowing a corresponding analog signal to be induced in a simple manner by filtering the digital signal that has the carrier wave of the intermediate frequency. COPYRIGHT KIPO 2016 (101) Signal conversion module (103) Modulation module (105) Transmission module (201) Receiving module (300) Channel (401) Input signal (A1,A2) Carrier wave of intermediate ...

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Номер записи: 21
12-07-2016 дата публикации

DEVICE FOR SELECTING TRANSFERRED AND RECEIVED BEAM OF MOBILE COMMUNICATIONS TERMINAL USING PLURALITY OF DIRECTIONAL ANTENNAS AND SELECTING METHOD THEREOF

Номер: KR1020160083797A
Автор: KANG, BYUNG SU, KWON, HEON KOOK, PARK, BONG HYUK
Принадлежит:

According to the present invention, a motion calculation circuit periodically tracks a posture changing value of a terminal and tracks whether the posture changing value is changed to exceed a threshold value set in accordance with a configuration of the terminal. The threshold value is basically set in accordance with the number of terminal antennas. Assuming that 360° horizontal omni-direction is divided and charged by n antennas, one antenna is in charge of 360/n wherein the threshold value is +-360/2n. COPYRIGHT KIPO 2016 ...

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Номер записи: 22
28-01-2019 дата публикации

재구성 델타 시그마 모듈레이터를 이용한 스위치 모드 파워 서플라이 및 이의 구동 방법

Номер: KR1020190009131A
Автор: 조영균, 김명돈, 현석봉, 박봉혁, 김철호
Принадлежит:

... 본 발명은 차수 변환이 가능한 루프필터를 사용하여 델타-시그마 모듈레이터(DSM: Delta-Sigma Modulator)를 다중 모드로 동작시킴으로써 출력 전압 특성 및 효율을 최적화할 수 있는 재구성 델타 시그마 모듈레이터(DSM)를 이용한 스위치 모드 파워 서플라이 및 이의 구동 방법에 관한 것이다. 본 발명의 실시 예에 따른 재구성 델타 시그마 모듈레이터를 이용한 스위치 모드 파워 서플라이는 전류 센싱부, 보상기, 재구성 델타 시그마 모듈레이터, 파워 스위치부 및 감쇠기를 포함한다. 상기 전류 센싱부는 출력단의 전류의 센싱 결과에 기초하여 동작 모드를 선택할 수 있다. 상기 재구성 델타 시그마 모듈레이터는 상기 보상 신호를 노이즈 쉐이핑하여 디지털 신호를 출력하고, 로드전류의 크기에 따라서 루프필터의 차수를 변경할 수 있다.

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Номер записи: 23
25-01-2018 дата публикации

APPARATUS FOR GENERATING ULTRAHIGH FREQUENCY SIGNAL USING FREQUENCY MULTIPLIER

Номер: KR1020180008983A
Автор: LEE, HUI DONG, PARK, BONG HYUK, CHO, YOUNG KYUN
Принадлежит:

Provided is an apparatus for generating an ultrahigh frequency signal using a frequency multiplier. The apparatus, which is a voltage control oscillator outputting a different four-phase clock signal, comprises: first and second voltage control oscillators which are composed of a resonant unit composed of an inductor and a variable capacitor and a pair of differential switching transistors connected to the resonant unit and having a drain and a gate interconnected to each other; and a plurality of coupling transistors which are connected in series to the differential switching transistors, respectively, and have a grounding and a common node. The inductor of the resonant unit is formed with an intermediate tap, an additional inductor is formed between the intermediate tap and a power terminal, and the ultrahigh frequency signal which is generated by the intermediate tap is outputted. COPYRIGHT KIPO 2018 ...

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Номер записи: 24
28-07-2017 дата публикации

THIRD ORDER LOOP FILTER AND DELTA-SIGMA MODULATOR INCLUDING SAME

Номер: KR1020170087309A
Автор: CHO, YOUNG KYUN, PARK, BONG HYUK
Принадлежит:

Disclosed is a third order loop filter for a delta-sigma modulator. The third order loop filter comprises: a single operation amplifier; and a resistor-capacitor network connected to the operation amplifier wherein the resistor-capacitor network comprises a plurality of capacitors and a plurality of resistors which satisfy a third order transfer function. COPYRIGHT KIPO 2017 ...

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Номер записи: 25
02-08-2016 дата публикации

FREQUENCY MULTIPLICATION CIRCUIT USING HIGH FREQUENCY OSCILLATOR

Номер: KR1020160091197A
Автор: LEE, HUI DONG, PARK, BONG HYUK, LEE, MOON SIK
Принадлежит:

The present invention relates to a frequency multiplication circuit applied to various electronic circuits. The frequency multiplication circuit according to various embodiments of the present invention may include a logic circuit part which synchronizes an input signal and generates a signal having a designated duty ratio, based on a pulse signal which synchronizes with the input signal and an inversion input signal which is an inversed input signal, and a multiplication part which generates a multiplication signal having a preset duty ratio based on the generated signal. COPYRIGHT KIPO 2016 (500) Logic circuit part (600) Multiplication part (AA) Pulse signal ...

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Номер записи: 26
25-07-2018 дата публикации

DATA MODULATION METHOD FOR WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF

Номер: KR1020180084625A
Автор: KONG, SUN WOO, PARK, BONG HYUK, LEE, MOON SIK, LEE, HUI DONG
Принадлежит:

Disclosed is a data modulation apparatus for a wireless communication system. According to the present invention, a data modulation apparatus includes: a single-to-differential (S2D) converter including a first amplifier operating based on a carrier signal and two transformers receiving an output signal of the first amplifier; a first switch for transmitting the state of input data to the first amplifier; a differential amplifier for differentially amplifying an output signal of the S2D converter; a differential-to-single (D2S) converter for converting an output signal of the differential amplifier into a single output signal and modulating the single output signal; and a second switch for transmitting the output signal of the differential amplifier to the D2S converter based on the input data. COPYRIGHT KIPO 2018 (500) OOK modulator (505) Carrier input unit (510) Input matching circuit (520) First switch (525) Data input unit (530) S2D converter (540) Differential amplifier (550) Second ...

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Номер записи: 27
22-09-2016 дата публикации

LOOP FILTER FOR DATA CONVERTER IN WIRELESS COMMUNICATION SYSTEM AND METHOD OF CONFIGURING SAME

Номер: KR1020160110607A
Автор: CHO, YOUNG KYUN, PARK, BONG HYUK, OH, JUNG HOON
Принадлежит:

Disclosed is a loop filter for a data converter in a wireless communication system for improving both an anti-aliasing filtering characteristic and a power consumption characteristic. Such a loop filter comprises: first and third resistors connected to an input terminal in order, fourth and second resistors connected between an inverting output terminal and a ground in order, a first capacitor connected between one end of the first resistor and one end of the fourth resistor, a second capacitor connected between one end of the fourth resistor and an output terminal, a third capacitor connected between one end of the third resistor and the output terminal, and an operational amplifier which includes an inverting terminal connected to the one end of the first resistor and a non-inverting terminal connected to a ground and outputs an amplified response to the output terminal. COPYRIGHT KIPO 2016 ...

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Номер записи: 28
04-07-2018 дата публикации

고주파 수신기

Номер: KR0101873754B1
Автор: 현석봉, 박봉혁, 최윤호, 정재호
Принадлежит: 한국전자통신연구원

... 본 발명의 고주파 수신기는 SAW 필터 없이 대역외 방해신호 및 간섭신호를 제거한다. 고주파 수신기는 안테나를 통해 수신된 신호를 증폭하는 저잡음 증폭기, 상기 저잡음 증폭기로부터 출력되는 신호에 포함된 대역외 방해신호 또는 간섭신호에 의한 2차 혼변조를 제거하는 2차 혼변조제거부, 상기 2차 혼변조제거부로부터 출력되는 신호의 주파수를 변환하는 수동형 믹서부, 및 상기 수동형 믹서부로부터 출력되는 신호에 포함된 대역외 방해신호 또는 간섭신호를 제거하여 트랜스임피던스 증폭기로 전달하는 저역통과필터부를 포함한다.

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Номер записи: 29
26-06-2017 дата публикации

HIGH SPEED DATA INTERPOLATOR HAVING MULTIPLE POLYPHASE STRUCTURE AND HIGH SPEED DATA TRANSMITTER USING INTERPOLATOR

Номер: KR1020170072109A
Автор: JUNG, JAE HO, KANG, BYUNG SU, PARK, BONG HYUK
Принадлежит:

The present invention relates to a high speed data interpolator having a multiple polyphase structure and a high speed data transmitter using the interpolator. The interpolator has a superimposed polyphase structure to easily remove noise image signal components (distortion) generated when high speed digital data is converted into an analog signal and transmitted. The interpolator includes a first polyphaser filter and a second polyphaser filter. COPYRIGHT KIPO 2017 (111) First inverse bandpass filter (112) Second inverse bandpass filter (121,BB) First group N/S bandpass filter (122,CC) Second group N/S bandpass filter (150) Delayer (AA) 1x transmission data (DD) Nx transmission data ...

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Номер записи: 30
26-01-2018 дата публикации

ULTRAHIGH FREQUENCY TRANSMISSION DEVICE USING VARIABLE OUTPUT LEVEL AND METHOD THEREOF

Номер: KR1020180009155A
Автор: LEE, HUI DONG, KONG, SUN WOO, PARK, BONG HYUK, LEE, MOON SIK
Принадлежит:

The present invention provides an ultrahigh frequency transmission device performing high-speed modulation with low power by changing an amplitude of an output signal in accordance with a logic level of an input signal, and a method thereof. The ultrahigh frequency transmission device applied to an ultrahigh frequency communication system includes: a signal source generating an ultrahigh frequency carrier signal; and a modulator outputting a modulation signal by composing input digital data with the carrier signal. The modulator includes: a signal transforming unit changing an output level of the input digital data and outputting transformed digital data; a first switch switching in accordance with a logic level of the transformed digital data and controlling a current flow on the modulator; a second switch and a third switch, which mix the input digital data with the carrier signal by individually switching at a high speed by the carrier signal; and a fourth switch switching in accordance ...

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Номер записи: 31
27-07-2018 дата публикации

고주파수 발진기를 이용한 주파수 체배 회로

Номер: KR0101882947B1
Автор: 이희동, 박봉혁, 이문식
Принадлежит: 한국전자통신연구원

... 본 발명은 다양한 전자 회로에 적용 가능한 주파수 체배 회로에 관한 것이다. 본 발명의 다양한 실시예에 따른 주파수 체배 회로는, 입력신호에 동기하는 펄스신호 및 상기 입력신호를 반전시킨 반전 입력신호를 기초로, 상기 입력신호에 동기하고 지정된 듀티비를 가진 신호를 생성하는 논리회로부와, 상기 생성된 신호를 기초로 소정의 듀티비를 가진 체배신호를 생성하는 체배부를 포함할 수 있다.

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Номер записи: 32
23-12-2016 дата публикации

ANTENNA DEVICE HAVING ABSORPTIVE SWITCH AND METHOD FOR CONTROLLING REACTANCE LOAD

Номер: KR1020160147433A
Автор: CHO, YOUNG KYUN, PARK, BONG HYUK, OH, JUNG HOON
Принадлежит:

An antenna device according to an embodiment of the present invention includes an active antenna for transmitting and receiving signals; a plurality of passive antennas formed around the active antenna to determine a beam pattern; a plurality of reactance rods for respectively controlling the driving of the passive antennas; and a switching element for controlling the driving of the reactance rod. The reactance value of the reactance load is determined according to an impedance of the switching element and a transmission line. COPYRIGHT KIPO 2017 (AA) Start (BB) Yes (CC) No (DD) End (S100) Measuring an impedance including a switch and a transmission line in a parasitic antenna port (S200) Initial impedance modeling (Z_I,_real) (S300) Is the measured impedance the same with an ideal target impedance? (S400) Using as one of reactance rods (S500) Additionally performing impedance matching ...

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Номер записи: 33
02-05-2017 дата публикации

배열 안테나 시스템의 오차 보정 장치 및 그 방법

Номер: KR0101727600B1
Автор: 정재호, 권헌국, 박봉혁
Принадлежит: 한국전자통신연구원

... 본 발명의 실시예에 따른 배열 안테나 시스템의 오차 보정 장치는 다수의 배열 안테나를 구비한 배열 송신 안테나 시스템의 오차 보정장치에 있어서, 송신신호의 통과대역과 간섭하지 않는 영역에 단일 주파수 신호로 오차 보정 신호를 생성하는 보정신호 생성기; 상기 송신신호를 RF 대역으로 상향 변환하여 상기 다수의 배열 안테나로 전달하는 배열 RF 송신기; 상기 오차 보정 신호와 상기 배열 RF 송신기를 통과하여 수신되는 수신 단일 주파수 신호를 상관하여 상기 배열 RF 송신기의 전달함수를 추정하고 추정된 전달함수를 이용하여 필터계수를 추출하는 오차보정 추정기; 및 상기 필터계수를 적용하여 송신신호의 오차를 보정하여 보정된 송신신호를 상기 배열 RF 송신기로 출력하는 복소 필터를 포함할 수 있다.

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Номер записи: 34
12-10-2016 дата публикации

MIMO SYSTEM USING SINGLE RF CHAIN

Номер: KR1020160118695A
Автор: OH, JUNG HOON, PARK, BONG HYUK, LEE, KWANG CHUN
Принадлежит:

The present invention relates to a beam space-MIMO (BS-MIMO) system capable of simultaneously transmitting multi-level signals by using an ESPAR antenna. The BS-MIMO system can simultaneously transmit multi-level signals, which can not be transmitted by an existing BS-MIMO system, to be used in a variety of mobile communication systems. The BS-MIMO system uses a single RF chain to reduce complexity and power consumption compared to an MIMO system using an existing antenna array. COPYRIGHT KIPO 2016 (120) Multi-level converter ...

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Номер записи: 35
27-11-2017 дата публикации

POWER AMPLIFIER

Номер: KR101801938B1
Автор: LEE, HUI DONG, PARK, BONG HYUK, JANG, SEUNG HYUN
Принадлежит: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

The present invention provides a power amplifier capable of satisfying linearity required from a system. The power amplifier comprises: a power amplification part including a plurality of first transistors, and amplifying voltage applied to a first electrode of the plurality of first transistors to output the voltage through a second electrode of the plurality of first transistors; and a plurality of bias circuits generating bias voltage for individually determining operation points of the plurality of first transistors, and applying the bias voltage to each first electrode of the plurality of first transistors. COPYRIGHT KIPO 2017 (910,920) Bias circuit (940,950) Input impedance mapping part (962) Impedance mapping part ...

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Номер записи: 36
25-01-2017 дата публикации

SEMICONDUCTOR PLASMA ANTENNA APPARATUS

Номер: KR1020170009587A
Автор: CHO, YOUNG KYUN, KIM, CHEOL HO, PARK, BONG HYUK
Принадлежит:

The present invention relates to a semiconductor plasma antenna apparatus. The semiconductor plasma antenna apparatus according to the present invention includes a cell array unit in which a plurality of PIN diode cells are arranged and a cell pattern is formed by using a predetermined PIN diode cell among the plurality of PIN diode cells, and a driving circuit unit which controls the driving of the predetermined PIN diode cell. Accordingly, the present invention can simplify complex routing and increase the performance of an antenna. COPYRIGHT KIPO 2017 (200) Driving circuit unit ...

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Номер записи: 37
03-08-2016 дата публикации

SMART ANTENNA SYSTEM AND METHOD FOR IMPROVING RECEIVING PERFORMANCE THEREOF

Номер: KR1020160091747A
Автор: CHO, YOUNG KYUN, PARK, BONG HYUK, OH, JUNG HOON, LEE, JUNG NAM, JO, GWEON DO
Принадлежит:

According to an embodiment of the present invention, provided is a smart antenna system, having a beam forming antenna including an active antenna and a plurality of parasitic antennas. The smart antenna system includes: a reactance load connected to the parasitic antennas; a transceiver transmitting/receiving a signal to/from the beam forming antenna; and an antenna adjustment unit tracking a signal source in real time by using a plurality of beam patterns and forming a beam in a direction where the signal has the highest intensity, thereby improving the sensitivity of the signal. COPYRIGHT KIPO 2016 (10) Signal source (310) Signal reception unit (320) Parasitic antenna adjustment unit (AA) Amplifier (BB) Interface (CC) Transmitter (DD) Receiver ...

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Номер записи: 38
20-08-2015 дата публикации

HIGH FREQUENCY TRANSCEIVER

Номер: KR1020150095076A
Автор: PARK, BONG HYUK, LEE, MOON SIK, LEE, KWANG CHUN
Принадлежит:

Disclosed is a technique for a high frequency transceiver suitable for high frequency characteristic and ultra low power. A high frequency transceiver includes a power control oscillator which provides an oscillation signal and a power amplifier which generates a carrier signal by multiplying an oscillation signal with integer times, generates a mixed signal by mixing a base band signal and the carrier signal, and amplifies the power of the mixed signal. COPYRIGHT KIPO 2015 ...

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Номер записи: 39
03-12-2018 дата публикации

고주파를 이용하여 무선 신호를 증폭하기 위한 회로

Номер: KR0101924639B1
Автор: 공선우, 박봉혁, 이문식, 이희동
Принадлежит: 한국전자통신연구원

... 고주파를 이용하여 무선 신호를 증폭하기 위한 회로가 개시된다. 고주파 증폭기 회로는 드레인, 게이트 및 소스를 포함하는 트랜지스터, 상기 드레인에 연결된 LC 탱크 및 상기 게이트 및 상기 소스에 연결된 변압기를 포함할 수 있다.

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Номер записи: 40
12-07-2016 дата публикации

ANALOG PREDISTORTION DEVICE

Номер: KR1020160083795A
Автор: RYU, NAM SIK, KANG, BYUNG SU, PARK, BONG HYUK, JANG, SEUNG HYUN
Принадлежит:

The present invention relates to an analog predistortion device for improving the linearity of a power amplifier. The analog predistortion device of the present invention comprises: a first envelope detector for outputting a first envelope signal based on a first input signal; a negative group delay circuit for performing a negative group delay on a second input signal according to a first control signal and outputting the delayed signal; a signal attenuator for attenuating the output signal of the negative group delay circuit and outputting the attenuated signal; a second envelope detector for outputting a second envelope signal based on the output signal of the signal attenuator; and a control circuit for outputting a first control signal based on the first envelope signal and the second envelope signal and outputting a second control signal to an external device based on the comparison results of the phase and size of the first envelope signal and the second envelope signal. COPYRIGHT ...

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Номер записи: 41
27-10-2017 дата публикации

LOW-POWER HIGH FREQUENCY AMPLIFIER

Номер: KR1020170119387A
Автор: KONG, SUN WOO, PARK, BONG HYUK, LEE, MOON SIK, LEE, HUI DONG
Принадлежит:

Disclosed is a low-power high frequency amplifier which simultaneously maintains low-power and high performance operations. According to an embodiment of the present invention, the low-power high frequency amplifier comprises: a first transistor; a second transistor; a first inductor connected to a drain of the first transistor and a source of the second transistor; a second inductor connected to a gate of the first transistor and the source of the second transistor; and a third inductor connected to a gate of the second transistor. The gate of the first transistor can be connected to an input terminal, a drain of the second transistor can be connected to an output terminal, and a source of the first transistor can be connected to the ground. COPYRIGHT KIPO 2017 ...

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Номер записи: 42
24-10-2017 дата публикации

CIRCUIT FOR AMPLIFYING WIRELESS SIGNAL USING HIGH FREQUENCY

Номер: KR1020170117822A
Автор: KONG, SUN WOO, PARK, BONG HYUK, LEE, MOON SIK, LEE, HUI DONG
Принадлежит:

Disclosed is a circuit for amplifying a wireless signal using high frequency. A high frequency amplifier circuit can comprise: a transistor including a drain, a gate, and a source; an LC tank connected to the drain; and a transformer connected to the gate and the source. According to an embodiment of the present invention, an oscillation phenomenon can be alleviated by the transformer, and stability and performance of the high frequency amplifier circuit can be improved at the same time. COPYRIGHT KIPO 2017 ...

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Номер записи: 43
16-01-2017 дата публикации

델타-시그마 변조기 및 이를 포함하는 송신장치

Номер: KR0101696269B1
Автор: 조영균, 이성준, 장승현, 박봉혁, 정재호, 이광천
Принадлежит: 한국전자통신연구원

... 델타-시그마 변조기 및 이를 포함하는 송신장치가 개시된다. 송신장치에 포함되는 델타-시그마 변조기는 입력신호와 피드백된 제1 신호를 적분하는 1 적분기와, 제1 적분기의 출력신호와 피드백된 제2 신호를 적분하는 제2 적분기와, 제2 적분기의 출력과 기준신호를 비교하여 제1 비교신호 및 제2 비교신호를 각각 출력하는 제1 비교기 및 제2 비교기와, 제1 비교신호 및 제2 비교신호에 상응하여 제1 신호 및 제2 신호를 각각 생성하는 제1 DAC 및 제2 DAC와, 제1 비교신호 및 제2 비교신호를 미리 설정된 시간만큼 지연시킨 신호를 생성하는 지연부 및 지연 신호에 상응하여 다중 전압 레벨의 출력신호를 생성하는 출력 DAC를 포함한다. 따라서, 송신장치의 성능 및 효율을 향상시킬 수 있다.

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Номер записи: 44
18-06-2018 дата публикации

IMPEDANCE MATCHING CIRCUIT OF COMMUNICATION DEVICE

Номер: KR1020180065905A
Автор: KONG SUN WOO, KIM CHEOL HO, PARK BONG HYUK, LEE, HUI DONG
Принадлежит:

The present invention relates to an impedance matching circuit of a communication device, capable of controlling mutual inductance and a coupling coefficient and reducing a circuit area. According to an embodiment of the present invention, the impedance matching circuit includes: a first inductor placed on a primary side of a transformer; a second inductor placed on a secondary side of the transformer; and an impedance element connected to the first and second inductors. Here, a first terminal of the first inductor is connected to an input terminal of the transformer, and a second terminal of the first inductor is connected to a common node connected to the ground. In addition, a first terminal of the second inductor is connected to an output terminal of the transformer, and a second terminal of the second inductor is connected to the common node. Moreover, a first terminal of the impedance element is connected to the common node, and a second terminal of the impedance element is connected ...

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Номер записи: 45
18-07-2018 дата публикации

CURRENT CONTROL CIRCUIT FOR ANTENNA, AND METHOD THEREOF

Номер: KR1020180082081A
Автор: HYUN, SEOK BONG, PARK, BONG HYUK, CHO, YOUNG KYUN, KIM, CHEOL HO
Принадлежит:

The present invention is to provide a current control circuit for an antenna and a method thereof. The current control circuit for an antenna comprises: a current sensor which senses a load current of an antenna element; an over current protection (OCP) unit which determines the existence of overcurrent from an output value of the current sensor, and generates an OCP signal; and a control unit which is connected with a main processing device for providing data adjusting a signal level of a signal, that is, determination standards of the overcurrent, and controls to output a consistent supply power to the antenna regardless of the element of the antenna by using the OCP signal. Therefore, the current control device and the current control method for an antenna can stably supply power necessary for operation of a plasma antenna, and can protect an antenna system from overcurrent that may occur during antenna drive. COPYRIGHT KIPO 2018 (101) Plasma antenna (103) Current Sensor (104) OCP unit ...

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Номер записи: 46
29-03-2018 дата публикации

VOLTAGE COMPARATOR, VOLTAGE COMPARING METHOD THEREOF, AND RESET METHOD THEREOF

Номер: KR1020180032126A
Автор: CHO, YOUNG KYUN, KIM, CHEOL HO, PARK, BONG HYUK, LEE, KWANG CHUN, JUNG, JAE HO, HYUN, SEOK BONG
Принадлежит:

Provided is a voltage comparator for comparing a voltage of a first input signal and a voltage of a second input signal. The voltage comparator comprises: a first switch pair configured to transfer the first input signal and the second input signal to a control terminal of a first transistor and a control terminal of a second terminal in response to a clock signal; a second switch pair configured to connect a first terminal and a second terminal of the first transistor and connect a first terminal and a second terminal of the second transistor in response to at least one of the clock signal and a reset signal; and a first reset switch configured to connect the control terminal of the first transistor and the control terminal of the second transistor in response to the reset signal. Therefore, the voltage comparator can minimize power consumption and an area. COPYRIGHT KIPO 2018 ...

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Номер записи: 47
27-09-2017 дата публикации

DEVICE AND METHOD FOR PROCESSING ENVELOPE SIGNAL

Номер: KR1020170108241A
Автор: JANG, SEUNG HYUN, PARK, BONG HYUK, LEE, HUI DONG
Принадлежит:

The present invention provides a signal processing device determining an amplification gain applied to an envelope signal according to a difference value between an input signal and an output signal of a power amplifier. The signal processing device comprises: a calculation part calculating the difference value of an amplitude size between the input signal and the output signal of the power amplifier, and generating a gain control signal; and an amplification part determining a gain applied to the envelope signal of the input signal according to the input gain control signal, and adjusting a size of the envelop signal. COPYRIGHT KIPO 2017 (210) Envelope signal extractor (220) Amplifier (230) Group delay compensation part (240) Envelope modulator (250) Power amplifier (260) Signal distributor (270) Calculation part ...

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Номер записи: 48
15-03-2017 дата публикации

SEMICONDUCTOR ELEMENT AND METHOD FOR ADJUSTING CARRIER CONCENTRATION OF SEMICONDUCTOR ELEMENT

Номер: KR1020170029287A
Автор: CHO, YOUNG KYUN, KIM, CHEOL HO, PARK, BONG HYUK, LEE, KWANG CHUN, LEE, HUI DONG, JUNG, JAE HO
Принадлежит:

Provided is a semiconductor element which can improve performance of a semiconductor plasma antenna apparatus by increasing carrier concentration in an intrinsic area of the semiconductor element. According to an embodiment of the present invention, the semiconductor element comprises: an embedded oxide film embedded in a semiconductor substrate; an intrinsic area formed by including a quantum well in an upper part of the embedded oxide film; and a p-type impurity area and an n-type impurity area formed by being separated from the intrinsic area for a certain distance. COPYRIGHT KIPO 2017 (AA) Radiation ...

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Номер записи: 49