发明名称 Synchronisation signal delay circuit for video recorder - separates horizontal and vertical pulses and forms twice horizontal frequency signal for generating delayed signal
摘要 <p>The delay circuit obtains pulses of twice the line frequency, pulses with the line frequency and pulses with the vertical frequency from the original composite sync. signal. The composite sync. signal is then reconstructed from these three sets of pulses to give the original sync. signal shifted in time by the wanted amount. The original composite sync. signal is identified by pulse counting and the dividers needed for regeneration are preprogrammed by the result of the count such that the delayed sync. signal is in accordance with the original in terms of the number of different width pulses.</p>
申请公布号 DE2831224(A1) 申请公布日期 1980.01.24
申请号 DE19782831224 申请日期 1978.07.15
申请人 LICENTIA PATENT-VERWALTUNGS-GMBH 发明人 SCHOLZ,WERNER,DIPL.-ING.
分类号 H04N5/04;H04N5/067;H04N5/932;H04N9/81;H04N9/86;(IPC1-7):04N5/06;04N5/76 主分类号 H04N5/04
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