Television – Synchronization – Locking of video or audio to reference timebase
Patent
1996-10-15
1998-07-28
Lee, Michael H.
Television
Synchronization
Locking of video or audio to reference timebase
348539, 348540, H04N 9475
Patent
active
057868662
ABSTRACT:
A color subcarrier signal generator for use e.g, in a video converter measures the average error of the horizontal synchronizing signal frequency. The measured error is used as a compensator signal to control a direct digital synthesizer to generate a correct color subcarrier signal. The direct digital frequency synthesizer includes an address generator receiving the error signal and a look up table driven by the address generator.
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Bucklen Willard K.
Hsu De Dzwo
Sani Mehdi H.
Fairchild Semiconductor Corporation
Klivans Norman R.
Lee Michael H.
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