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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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