Skew signal generating apparatus for digital TV

Details Skew signal generating apparatus for digital TV Skew signal generating apparatus for digital TV

1987-03-31

1988-09-20

Chin, Tommy P.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 36, 358167, 358337, H04N 5213, H04N 595

Patent

active

047729376

ABSTRACT:
A divider divides down the output of a high frequency oscillator to generate a master clock signal MCS for the purposes of sampling an incoming composite video signal CVS. A skew measuring circuit latches the current state of the divider at a predetermined edge of every incoming horizontal sync signal pulse IHSSP to provide skew data representative of the timing or phase offset between the clock signal MCS and the incoming horizontal sync signal IHSS at the start of each new line of picture information.

REFERENCES:
patent: 4638360 (1987-01-01), Christopher et al.
patent: 4667240 (1987-05-01), Willis

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