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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 8. Отображено 8.
08-07-2015 дата публикации

EXPANSION-TYPE BUSDUCT JOINT

Номер: KR1020150077968A
Автор: LEE, JOON KEUN, PARK, SUNG HEE, KIM, BONG SUK, CHOI, JI WOOK, PARK, SEOL HEE
Принадлежит:

Disclosed is an expansion-type busduct joint. An expansion-type busduct joint according to an embodiment of the present invention can prevent the bucking phenomenon of a busbar by absorbing expansion when contraction load due to the contraction of a building or the thermal expansion of the busduct is generated. The expansion of the busduct is absorbed by simply changing structure. Thereby, installation convenience can be improved and costs can be reduced. Also, an increase of resistance due to the deformation of the busbar is prevented and a constant conduction performance is maintained. Thereby, the reliability of products can be improved. COPYRIGHT KIPO 2015 ...

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Номер записи: 1
14-11-2019 дата публикации

APPARATUS AND METHOD FOR AUTOMATICALLY SUPPLYING SOLDER CONTAINER

Номер: WO2019216516A1
Автор: KIM, Gwi Han, CHOI, Ji Uk, SIM, Eun Hyeok
Принадлежит:

The present invention relates to an apparatus and a method for automatically supplying a solder container, the apparatus comprising: a supply unit for supplying a solder container by means of the weight of the solder container; a mount unit for mounting the solder container supplied from the supply unit; a work unit for applying solder paste on a printed circuit board while having mounted the solder container supplied from the mount unit; and a transfer unit for reciprocatively transferring the mount unit between the supply unit and the work unit. The work unit can comprise: a standby zone in which the solder container is positioned in a standby state before being mounted; a mount zone in which the solder container moved from the standby zone is mounted; and a discharge zone in which, in accordance with a remaining amount measurement value from a sensor which has measured the amount of remaining solder paste inside the solder container mounted in the mount zone, the mounted solder container ...

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Номер записи: 2
21-12-2016 дата публикации

THREE PHASE ELECTRICITY INTERIOR WIRING USING REVERSE PHASE

Номер: KR1020160146004A
Автор: CHOI, JI UK
Принадлежит:

The present invention relates to a method using three phase electricity provided from an electric operator. When the existing three phase alternating current is used for interior wiring, a potential difference between phases is greater than a phase difference between grounds, which makes services get bigger in order to obtain insulation between phases. A natural line installation should be installed additionally up to a place where a phase voltage is used. A reverse phase is supplied from the electric operator, and the existing three phase alternating current is supplied and converted into the reverse phase autonomously. According to the effects of the present invention, when the reverse phase is mixed with the existing three phase, a line voltage is lowered to an identical level with the phase voltage, thereby minimizing the services or reducing an insulation cost, lowering a failure probability of insulation damage, and minimizing a device. In addition, the phase voltage can be used without ...

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Номер записи: 3
23-11-2016 дата публикации

THREE-PHASE ELECTRIC POWER TRANSMITTING METHOD USING REVERSE PHASE

Номер: KR1020160134313A
Автор: CHOI, JI UK
Принадлежит:

The present invention relates to a method of transmitting three-phase electric power. In a conventional three-phase electric power transmitting method, a line potential difference, which is a potential difference between phases, is greater than a potential difference between each phase and ground. Accordingly, inter-phase insulation cost is increased, possibility of inter-line dielectric breakdown is increased, and a phase voltage is stably used only when a neutral line is present. -A, -B, and -C phases, which are reverse phases of A, B, and C phases, respectively, are used for the three-phase electric power transmitting method. When the reverse phase is used upon transmitting the three-phase electric power, a line voltage is decreased equivalent to the phase voltage, thereby reducing the inter-phase insulation cost and an insulation distance. Further, various uses for decreasing insulation inside a device, converting a direct current, and so on, as well as transmitting the electric power ...

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Номер записи: 4
21-02-2019 дата публикации

APPARATUS AND METHOD FOR FREQUENCY LATTICE MODULATION IN WIRELESS COMMUNICATION SYSTEM

Номер: WO2019035688A1
Автор: LIM, Jongbu, LEE, Namyoon, CHOI, Jiwook, KIM, Chanhong, YUN, Yeohun, HONG, Sungnam
Принадлежит:

The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transfer rate beyond a 4th generation (4G) communication system, such as long term evolution (LTE). A transmission device in a wireless environment according to various embodiments may comprise a transceiver, and a processor functionally coupled to the transceiver, wherein the processor is configured to: generate a codeword associated with transmission data; generate symbols from the codeword by using a plurality of transmission symbol vectors determined using a linear combination of vectors corresponding to each of rows of a lattice generation matrix; and transmit a signal generated on the basis of the symbols, through the transceiver.

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Номер записи: 5
08-08-2018 дата публикации

COMMUNICATION APPARATUS AND METHOD FOR IMPROVING TRANSMISSION EFFICIENCY IN MULTIPLE-INPUT MULTIPLE-OUTPUT ANTENNA COMMUNICATION SYSTEM

Номер: KR1020180089263A
Автор: LEE, NAM YOON, CHOI, JI WOOK
Принадлежит:

The present invention relates to a communication apparatus and method for improving transmission efficiency in a multiple-input multiple-output antenna communication system. The present specification provides a transmission apparatus which includes a plurality of transmission antennas including at least one active antenna, and a processor for mapping an input data bit to a combination of the at least one active antenna and at least one modulation symbol (hereinafter referred to as antenna-symbol combination), generating the at least one modulation symbol based on mapping and transmitting the at least one modulation symbol or at least one zero vector through the at least one active antenna. Accordingly, the present invention can improve frequency efficiency and reduce a bit error rate. COPYRIGHT KIPO 2018 (AA) Start (BB) End (S510) Estimate all available antenna-symbol combinations (S530) Calculate the number of data bits which can be modulated at once (S550) Map input bit data to the antenna-symbol ...

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Номер записи: 6
27-02-2019 дата публикации

무선 통신 시스템에서 주파수 격자 변조를 위한 장치 및 방법

Номер: KR1020190019372A
Автор: 임종부, 이남윤, 최지욱, 김찬홍, 윤여훈, 홍성남
Принадлежит:

... 본 개시(disclosure)는 LTE(Long Term Evolution)와 같은 4G(4th generation) 통신 시스템 이후 보다 높은 데이터 전송률을 지원하기 위한 5G(5th generation) 또는 pre-5G 통신 시스템에 관련된 것이다. 다양한 실시 예들에 따른 무선 환경(wireless environment)에서 송신 장치(transmission device)는, 송수신기(transceiver)와, 상기 송수신기와 기능적으로 결합된 프로세서(processor)를 포함하고, 상기 프로세서는, 송신 데이터에 관련된 코드워드를 생성하고, 격자 생성 행렬의 행들 각각에 대응하는 벡터들의 선형 결합을 이용하여 결정된 복수의 송신 심볼 벡터들을 이용하여 상기 코드워드로부터 심볼들을 생성하고, 상기 심볼들에 기반하여 생성된 신호를 상기 송수신기를 통해 송신하도록 설정될 수 있다.

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Номер записи: 7
12-09-2018 дата публикации

SPATIAL GRID MODULATION METHOD IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE INPUT MULTIPLE OUTPUT SCHEME AND DEVICE USING SAME

Номер: KR1020180101127A
Автор: LEE, NAM YOON, CHOI, JI WOOK, NAM, YUN SEO
Принадлежит:

The present invention relates to a spatial grid modulation method in a wireless communication system for supporting a multiple input multiple output (MIMO) scheme and a device using the same. A transmitter device in a wireless communication system for supporting a MIMO scheme includes: multiple transmission antennas; and a processor which maps input data onto combinations of multiple virtual antenna dimensions and one or more modulation symbols, hereinafter referred to as a dimension-symbol combination. The processor also generates one or more modulation symbols based on the mapping and transmits the modulation symbols through one or more of the transmission antennas. The virtual antenna dimensions can be defined with antennas transmitting equivalent real signals in complex signals being transmitted by the transmission antennas. COPYRIGHT KIPO 2018 (AA) Start (BB) End (S610) Map input data onto combinations of dimensions and symbols based on mapping information (S620) Generate one or more ...

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Номер записи: 8