Comb filters

Details Comb filters Comb filters

1983-04-01

1985-07-30

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 9535

Patent

active

045325421

ABSTRACT:
A filter circuit for processing a composite video signal comprises a series circuit of a delay device for delaying an input composite video signal for the duration of one line of the video signal and a first bandpass filter connected to the delay device to receive the delayed video signal. A transversal bandpass filter receives the input composite video signal and provides as outputs a delayed composite video signal and a delayed chrominance component. A first summing device sums the delayed chrominance component and the output of the series circuit, while a second summing device sums the delayed composite video signal and the output of the first summing device. The series circuit can be selectively disabled so as not to apply the delayed video signal to the first summing device.

REFERENCES:
patent: 4466016 (1984-08-01), Pritchard

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