Method and apparatus for remote adjustment of a time delay circuit of externally synchronized video transmitters
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United States of America Patent
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Dec 10, 2002
Grant Date -
N/A
app pub date -
Aug 23, 1999
filing date -
Aug 23, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method and apparatus for delaying propagation time of an external synchronizing signal transmitted from a receiver to transmitters which transmit a video signal to the receiver, each transmitter has an adjustable propagation delay timer which delays propagation of the external synchronizing signal. The receiver includes a detection circuit for detecting a time coincidence or a time difference between the external synchronizing signal and a sync portion of a video signal selected by a selector to be transmitted to the receiver, and a circuit which modifies the external synchronizing signal to produce a fluctuated external synchronizing signal when the detection circuit detects the time difference between the external synchronizing signal and the sync portion of the selected video signal.
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