发明名称 GHOST CANCELING CIRCUIT
摘要 A ghost canceling circuit comprising a Fourier transforming circuit for Fourier transforming a reference waveform contained in the received television signal while converting the analogue signal into digital form, means for holding and outputting a reference waveform Fourier coefficient obtained by Fourier transforming the reference waveform contained in the television signal at the transmission side, a signal processing portion in which the outputted reference waveform Fourier coefficient is divided by the result of the A/D conversion, the divided Fourier coefficient is reverse Fourier transformed, and the reverse Fourier transformed Fourier coefficient is supplied to a transversal filter recognizing it as a tap gain.
申请公布号 CA1302557(C) 申请公布日期 1992.06.02
申请号 CA19890593393 申请日期 1989.03.10
申请人 NEC HOME ELECTRONICS LTD.;NIPPON HOSO KYOKAI 发明人 TANAKA, TADAAKI;SASAKI, FUMIYOSHI;MIYAZAKI, TETSURO;KOBAYASHI, REIICHI;SHIKI, TATSUYA;KOBAYASHI, MICHIO
分类号 H04N5/21;(IPC1-7):H04N5/21 主分类号 H04N5/21
代理机构 代理人
主权项
地址