发明名称 External input signal processing circuit for a television receiver with a video tape recorder for the purpose of viewing copy-protected video signals
摘要 A television receiver with a video tape recorder, in which a common terminal of an external-input changeover switch is connnected to one input terminal of a first changeover switch via an AGC circuit, the other input terminal is connected to an output of a video signal reproducing circuit, and a common terminal of the first changeover switch is connected to a television signal processing circuit. Further, a second changeover switch is interposed between the common terminal of the first changeover switch and the television signal processing circuit, one input terminal of the second changeover switch is connected to an input terminal side of the AGC circuit, the other input terminal is connected to the common terminal of the first changeover switch, and the common terminal is connected to the television signal processing circuit. Furthermore, a switch circuit is disposed which controls the first and second changeover switches so as to be operated in an interlocked manner.
申请公布号 US6285821(B1) 申请公布日期 2001.09.04
申请号 US19950439793 申请日期 1995.05.12
申请人 FUNAI ELECTRIC CO., LTD. 发明人 YOSHIDA NOBORU
分类号 H04N5/44;H04N5/765;H04N5/775;H04N5/91;H04N5/93;(IPC1-7):H04N5/923 主分类号 H04N5/44
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