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특허 검색
구분 출원국
출원년도 ~ 키워드

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등록 재확산 부호를 이용한 주파수 선택적 변조장치 및 방법

재확산 부호를 이용한 주파수 선택적 변조장치 및 방법
이미지 확대
발명자
임인기, 박형일, 강성원, 강태욱, 형창희, 김진경, 황정환, 최병건, 김성은, 강태영, 현석봉, 김정범, 김경수, 박경환
출원번호
12853499 (2010.08.10)
공개번호
20110058591 (2011.03.10)
등록번호
8599902 (2013.12.03)
출원국
미국
협약과제
09MB1900, 인체통신 컨트롤러 SoC, 강성원
초록
A frequency selective modulation apparatus and method using re-spreading codes are disclosed. The frequency selective modulation apparatus includes: a serial-to-parallel converter receiving transmission data and performing serial-to-parallel conversion on the transmission data at a pre-set ratio; one or more sub-frequency selective spreaders selecting one spreading code by using data bits received from the serial-to-parallel converter; a majority value selection unit selecting a majority value from one or more spreading codes which have been selected by each of the one or more of the sub-frequency selective spreaders; and a first XOR logic circuit XORing an output of the majority value selection unit and a re-spreading code Wn to re-spread a frequency selective baseband to a frequency selective passband.
KSP 제안 키워드
Frequency selective, Parallel converter, Serial-to-parallel conversion, Serial-to-parallel converter, XOR logic, logic circuit, pre-set, spreading code