상세정보
등록 직교주파수분할다중화 시스템에서의 초기동기정보를 이용한 디지털 디씨 오프셋 제거 방법 및 장치
- 출원번호
- 11721139 (2005.09.06)
- 공개번호
- 20100128819 (2010.05.27)
- 등록번호
- 8170147 (2012.05.01)
- 출원국
- 미국
- 초록
- An apparatus and method for canceling a DC offset efficiently removes the DC offset by calculating the DC offset after acquiring synchronization in a terminal receiver used for an orthogonal frequency division multiplexing system. The apparatus for canceling the DC offset includes an adding/averaging unit (130), an accumulator (140), a synchronization determiner (150), and a pulse density modulation signal generator (160). The adding and averaging the added input data signals over one frame. The accumulator (140) outputs a DC offset control value by successively accumulating the DX offsets calculated from the adding and averaging unit. The synchronization determiner (150) determines whether to output the DC offset control value provided by the accumulator (140) based on synchronization information. The pulse density modulation signal generator (160) generates a digital pulse density modulation signal based on a representative value provided by the synchronization determiner (150).
- KSP 제안 키워드
- DC-offset, Density modulation, Frequency division, Frequency division multiplexing, Orthogonal frequency division Multiplexing(OFDM), Pulse density, Representative value, Signal Generator, dc offset control, division multiplexing, input data, modulation signal, pulse density modulation, signal based
- 패밀리
| 구분 | 특허 | 출원국 | KIPRIS |
|---|---|---|---|
| 등록 | OFDM 시스템의 단말의 수신기용 DC 오프셋 제거 장치 및 그 방법 | 대한민국 | KIPRIS |