发明名称 Noise removal device
摘要 An improved noise removal device (1) capable of improving a removal precision of removing a pulse noise from a received signal. The noise removal device comprises: a hold control unit (3) for receiving an input signal containing a received signal and a pulse noise mixed in the received signal, detecting pulse noise occurring periods, and deciding hold periods corresponding to the pulse noise occurring periods; a pilot signal extracting unit (4) for extracting a pilot signal from the input signal; a pilot signal removing unit (5) for removing and outputting a pilot signal from the input signal; a main signal extracting unit (6) for extracting a main signal from the input signal; a hold circuit (7) for holding, during hold periods, signal containing the main signal outputted from the main signal extracting unit (6); and a signal synthesizing unit (10) for synthesizing the pilot signal with a signal outputted from the hold circuit (7) during hold periods and with a signal outputted from the pilot signal removing unit during periods other than hold periods, thereby producing and outputting a received signal free from any pulse noise. <IMAGE>
申请公布号 EP1548950(A1) 申请公布日期 2005.06.29
申请号 EP20040029116 申请日期 2004.12.08
申请人 PIONEER CORPORATION 发明人 SUGANUMA, HISASHI
分类号 H04B1/10;H04B1/16 主分类号 H04B1/10
代理机构 代理人
主权项
地址