04217605 is referenced by 4 patents and cites 3 patents.

A comb filter comprising a charge transfer device (CTD) structure for separating frequency interleaved luminance and chrominance components of a composite color television signal directly within the CTD structure. The CTD structure has first and second pairs of input sections of substantially identical geometry, one input section of the second pair being preceded by a signal inverter. Signal charge as applied to the first and second input pairs are delayed such that signal charge from the first input pair exhibits a 1H delay relative to signal charge from the second input pair, when the signal charge from the respective input pairs are combined with each other. A first charge summing well combines mutually in-phase signal charge at multiples of the line scanning frequency from the first and second inputs to provide a combed luminance signal charge component, while a second well combines mutually inverted or out-of-phase signal charge at these frequencies from the first and second inputs to provide a combed chrominance signal charge component.

Title
Comb filter employing a charge transfer device with plural mutually proportioned signal charge inputs
Application Number
5/930379
Publication Number
4217605
Application Date
August 2, 1978
Publication Date
August 12, 1980
Inventor
Walter F Kosonocky
Skillman
NJ, US
Robert H Dawson
Princeton
NJ, US
James E Carnes
Indianapolis
IN, US
Agent
Ronald H Kurdy
William H Meagher
Eugene M Whitacre
Assignee
RCA Corporation
NY, US
IPC
H04N 9/535
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