发明名称 DEVICE AND SYSTEM FOR SIGNAL DISTRIBUTION, AND SIGNAL DISTRIBUTION SYSTEM CONSTRUCTING METHOD
摘要 PROBLEM TO BE SOLVED: To provide a signal distributing device which is advantageous in cost and suitable for making it small-sized and to provide a signal distribution system which suitably improves the reliability of signal transmission. SOLUTION: A concentrator device 80 of this signal distribution system is equipped with connection terminals 82a to 82d to which STBs can be connected, tuners 54a to 54d which extract desired channel signals from a multiplexed signal down-converted from an RF signal to an intermediate- frequency signal and which correspond to the connection terminals 82a to 82d, and a signal processing system 84, which processes the channel signals from the tuners 54a to 54d on a time-division basis as specified. When request signals are inputted from STBs 50a to 50d via the connection terminals 82a to 82d, the channel signals corresponding to the request signals are extracted from the multiplexed signal, processed as prescribed, and outputted to the connection terminals 82a to 82d having inputted the request signals.
申请公布号 JP2000092470(A) 申请公布日期 2000.03.31
申请号 JP19980261653 申请日期 1998.09.16
申请人 ASAHI CHEM IND CO LTD 发明人 SAOTOME ISAO
分类号 H04N5/00;H04N7/173;H04N21/426;H04N21/438;H04N21/61 主分类号 H04N5/00
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