Circuit for automatically compensating delay difference between

Details Circuit for automatically compensating delay difference between Circuit for automatically compensating delay difference between

1997-01-10

1998-09-15

Powell, Mark R.

Television

Image signal processing circuitry specific to television

Color television signal processing

348663, 348914, H04N 977, H04N 978

Patent

active

058087010

ABSTRACT:
A video signal processing system includes a circuit for detecting the delay between a luminance signal and a color signal in a video signal, and for automatically compensating for the delay. The circuit includes a Y/C separator for separating a composite video signal into the luminance signal and the color signal, and a color difference and synchronous signals separator for separating the luminance and color signals into synchronous and color difference signals. A delay circuit receives and delays the luminance signal based on a delay control signal, and outputs the delayed luminance signal to a video signal processor, which also receives the color difference signals directly from the color difference and synchronous signals separator. The delay control signal is generated by a delay correction signal generator, which is responsive to the synchronous signals generated by the color difference and synchronous signals separator, and outputs of the video signal processor, including a delayed luminance signal and color difference signals. The delay correction signal generator 22 reciprocally compares the luminance signal with the color signals in accordance with the separated synchronous signals, and outputs the delay control signal, corresponding to the detected amount of delay, to the delay circuit, in order to delay the luminance signal, and thereby compensate for the delay between the color signals and luminance signal.

REFERENCES:
patent: 4982179 (1991-01-01), Ogawa et al.
patent: 5095364 (1992-03-01), Asaida et al.
patent: 5355179 (1994-10-01), Ciardi et al.
patent: 5657387 (1997-08-01), Mogi et al.

Affiliated with

Also associated with

Rating

Circuit for automatically compensating delay difference between does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for automatically compensating delay difference between , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for automatically compensating delay difference between will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-93586