Filter for separating luminance and chrominance signals from com

Details Filter for separating luminance and chrominance signals from com Filter for separating luminance and chrominance signals from com

1988-02-25

1990-09-04

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 978

Patent

active

049548859

ABSTRACT:
A filtering circuit separates from the composite color television signal both the luminance and chrominance signals that includes a delay circuit for delaying the composite color video signal. A first filter is also provided which is responsive to the video signal and the delayed video signal and extracts a chrominance signal corresponding to a frequency component of a color subcarrier in a vertical direction. A second filter is used which is responsive to at least the delayed video signal and extracts a chrominance signal corresponding to a frequency component of the color subcarrier in a horizontal direction. Lastly, a third filter is utilized which is responsive to the video signal and the delayed video signal and extracts a chrominance signal corresponding to a frequency component of the color subcarrier in both the vertical and horizontal direction. This filter circuit then determines, in response to the video signal and the delayed video signal, a correlation in a televised picture in the vertical and horizontal directions, respectively. In accordance with this determination, a switching circuit selects one of the chrominance signals extracted, respectively, by the first to third filters as an output.

REFERENCES:
patent: 4754322 (1988-06-01), Okuda et al.
patent: 4789890 (1988-12-01), Itoh et al.

Affiliated with

Also associated with

Rating

Filter for separating luminance and chrominance signals from com does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter for separating luminance and chrominance signals from com, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter for separating luminance and chrominance signals from com will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-445513