Television signal memory-write circuit

Details Television signal memory-write circuit Television signal memory-write circuit

H - Electricity

04

N

350/81

H04N 5/21 (2006.01) H04N 5/907 (2006.01) H04N 5/91 (2006.01) H04N 5/937 (2006.01)

Patent

CA 1240035

ABSTRACT: In a television signal memory write circuit which is synchronized by a horizontal and vertical syn- chronizing signal pattern obtained from the television signal to be entered, the mutual positions of these pat- terns are measured with the aid of a measuring circuit (25) and depending on this measurement the vertical syn- chronizing signal pattern is delayed by a variable delay circuit (17) to such an extent that in practice the pat- terns are prevented from coinciding, so that a change in the position of a predetermined line number in the tele- vision signal memory circuit (5) is prevented to the best possible extent, which renders the circuit less sensitive to interference.

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