Luminance/chrominance separating apparatus

Details Luminance/chrominance separating apparatus Luminance/chrominance separating apparatus

1986-01-13

1987-10-27

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 22, H04N 978

Patent

active

047033428

ABSTRACT:
A luminance/chrominance separating apparatus for a composite video signal comprises a vertical direction filter section for extracting a delayed chrominance signal and a delayed luminance signal from the composite video signal; a horizontal direction filter section for extracting a non-delayed chrominance signal and a non-delayed luminance signal from the composite video signal; a correlation detector section for detecting a correlation of the composite video signal and producing a gain control signal in response to such detected correlation; and respective gain control circuits for receiving and processing the delayed and non-delayed chrominance and luminance signals in accordance with the gain control signal. In accordance with the gain control signal, complementary gain factors are determined, and applied to the delayed chrominance signal and non-delayed chrominance signal by the respective gain control circuits. The outputs of the gain control circuits are then added to produce chrominance and luminance output signals. The gain factors are selected such that when a correlation of the composite video signal is detected, the output chrominance signal is the delayed chrominance signal; but when no correlation is detected, the output chrominance signal is the non-delayed chrominance signal. The delayed and non-delayed luminance signals are processed in the same way.

REFERENCES:
patent: 4513311 (1985-04-01), Hirai
patent: 4570177 (1986-02-01), Kondo
patent: 4591911 (1986-05-01), Tanaka

Affiliated with

Also associated with

Rating

Luminance/chrominance separating apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Luminance/chrominance separating apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Luminance/chrominance separating apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1274845