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성과물

특허 검색
구분 출원국
출원년도 ~ 키워드

상세정보

등록 전지 등화 장치, 이를 이용한 VSB 전송 시스템 및 그 전송 방법

전지 등화 장치, 이를 이용한 VSB 전송 시스템 및 그 전송 방법
이미지 확대
발명자
서재현, 이용태, 김승원
출원번호
10267818 (2002.10.10)
공개번호
20040008764 (2004.01.15)
등록번호
7406132 (2008.07.29)
출원국
미국
협약과제
초록
Disclosed is a pre-equalizer, a vestigial sideband (VSB) transmission system using the pre-equalizer, and a VSB transmission method. A first transmit signal is stored in a first memory, and a pre-equalizer pre-equalizes the first transmit signal based on a set tap coefficient. A transmitter modulates the pre-equalized first transmit signal, and sends the modulated signal. The first transmit signal is fed back to a receiver, which demodulates the transmitted first transmit signal and stores the demodulated signal as the second transmit signal in a second memory. Subsequently, the pre-equalizer calculates a tap coefficient based on an error value as the difference between the first transmit signal and the second transmit signal, and updates the set tap coefficient based on the calculated tap coefficient.
KSP 제안 키워드
Modulated signal, Pre-equalizer, Transmission system, Vestigial side band(VSB), signal based, transmission method