发明名称 |
DERIVING A COMPSITE SYNCHRONIZING SIGNAL IN A TELEVISION RECEIVER |
摘要 |
<p>An arrangement for a television receiver is disclosed which facilitates the coupling of synchronization signals to an on-screen display integrated circuit of the receiver. The receiver includes sources of periodic vertical and horizontal rate pulses. A composite timing signal generator combines the vertical and horizontal rate pulses so as to form a composite timing signal in which the horizontal rate pulses are absent during the duration of each vertical rate pulse. The composite timing signal is coupled via a single conductor path to an input terminal of the on-screen display circuit. The composite timing signal can be readily decoded by a simple digital counter to provide separate horizontal and vertical rate pulses for the on-screen display circuit.</p> |
申请公布号 |
AU569288(B2) |
申请公布日期 |
1988.01.28 |
申请号 |
AU19840026047 |
申请日期 |
1984.03.23 |
申请人 |
R.C.A. CORP., |
发明人 |
GREGORY GEORGE TAMER |
分类号 |
H04N5/68;H04N5/04;H04N5/06;H04N5/445;(IPC1-7):H04N5/08 |
主分类号 |
H04N5/68 |
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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