Television signal synchronizing apparatus

Details Television signal synchronizing apparatus Television signal synchronizing apparatus

H - Electricity

04

N

350/66, 350/91

H04N 9/12 (2006.01) H04N 9/475 (2006.01)

Patent

CA 1227565

ABSTRACT According to the present invention, there is provided a television signal synchronizing apparatus comprising: a write-in address generating circuit; a memory for storing a video signal contained in an input television signal in response to the write-in address; a read-out address generating circuit to read the video signal from the memory; a phase relationship detecting circuit for producing a phase signal indicating a phase relationship between a horizontal sync signal and a color subcarrier both contained in a read-out reference signal; and a forced clear pulse producing circuit in response to the horizontal sync signal and a vertical sync signal contained in the read-out reference signal, and the phase signal, whereby the read-out address circuit is cleared by the forced clear pulse.

464791

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