发明名称 Teletext reception indicator
摘要 An indicator is described for alerting a television viewer to the fact that a teletext signal is being received. In the preferred embodiment, the indicator includes a control which senses the detection of the framing code associated with the received teletext signal to actuate an indicator lamp.
申请公布号 US4520392(A) 申请公布日期 1985.05.28
申请号 US19830471978 申请日期 1983.03.04
申请人 ZENITH ELECTRONICS CORPORATION 发明人 COX, CHARLES M.;HEUER, CHARLES
分类号 H04N5/445;H04N7/088;(IPC1-7):H04N7/04 主分类号 H04N5/445
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