Video disc player having time base variations eliminated in both audio and video signals
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United States of America Patent
Stats
-
Jan 10, 1984
Grant Date -
N/A
app pub date -
May 5, 1981
filing date -
May 6, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video disc player in which undesirable frequency variations in reproduced video and audio signals due to absence of the color burst signal during the vertical retrace time are eliminated. A first control unit actuates a tangential mirror driver unit in response to a phase difference produced by comparing a horizontal synchronizing signal from the reproduced video signal with a reference color subcarrier signal. The video signal is delayed by an electronically-controlled variable delay line the delay time of which is set on accordance with a phase difference between the color burst signal and a reference horizontal synchronizing signal.
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