Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1981-05-27
1984-08-14
Chin, Tommy P.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 40, H04N 9535
Patent
active
044660162
ABSTRACT:
A signal separation system is provided which includes a plurality of serially-coupled signal transfer stages. A video information signal is applied to an input stage and is delayed by at least the time interval of one horizontal television line (1-H) as it passes through the stages. Various ones of the stages which are 1-H apart in time include outputs, which are combined by weighting function and summing or difference circuits to produce bandwidth-limited transversal filter output signals. These signals are additively and subtractively combined to produce a combed band passed chrominance signal and a fully restored and combed luminance signal, thereby obviating the need for subsequent filtering before the signals are further processed. The bandwidth-limited signals may also be combined to provide a user adjustable peaking control signal for the luminance information channel.
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A CCD Comb Filter for Color TV Receiver Picture Enhancement, by D. H. Pritchard, RCA Review, vol. 41, No. 1 Mar. 1980, pp. 3 to 28.
Chin Tommy P.
Herrmann E. P.
Rasmussen P. J.
RCA Corporation
Whitacre E. M.
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