Circuit arrangement for separating chrominance and luminance inf

Details Circuit arrangement for separating chrominance and luminance inf Circuit arrangement for separating chrominance and luminance inf

1978-03-21

1980-05-27

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 23, H04N 9535, H04N 950

Patent

active

042053358

ABSTRACT:
A color signal processing circuit comprising a first bandpass filter for extracting a modulated color signal from a composite video signal, a first comb filter having two charge transfer devices and a subtractor for providing a first sampled color signal, a second comb filter having two charge transfer devices and a subtractor for providing a second sampled color signal, an adder circuit for arithmetically determining a sum of the first and second sampled color signals, a second bandpass filter for reproducing only the modulated color signal from the sum of the first and second sampled color signals, and a subtraction circuit for arithmetically determining a difference signal between the composite video signal and an output signal from the second bandpass filter, so that first and second demodulated color signal outputs utterly free of a luminance signal component are obtained from the first and second comb filters respectively through a low pass filter while a luminance signal output is obtained from the subtraction circuit which is utterly free of a color signal component, whereby the prevention of the cross-color phenomenon as well as the dot interference can be achieved.

REFERENCES:
patent: 3707596 (1972-12-01), Kuhn
patent: 4074321 (1978-02-01), Miller

Affiliated with

Also associated with

Rating

Circuit arrangement for separating chrominance and luminance inf 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 arrangement for separating chrominance and luminance inf, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit arrangement for separating chrominance and luminance inf will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1122405