Electronic circuit apparatus for separating the luminance and co

Details Electronic circuit apparatus for separating the luminance and co Electronic circuit apparatus for separating the luminance and co

1984-04-09

1987-02-03

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358105, H04N 978

Patent

active

046411801

ABSTRACT:
A single television signal delay chain is interconnected with linear combination matrices for frame comb filtering and line comb filtering. Related circuits provide correction signals for controllably eliminating the frame or the line comb filtering. Detectors are provided for movement and for edges in the picture content and these detectors supply signals to a picture blending circuit for selecting the most appropriate kind of comb filtering for the current picture content. The circuits operate on a digital basis with a sampling frequency which is an integral multiple of the line scanning frequency.

REFERENCES:
patent: 4050084 (1977-09-01), Rossi
patent: 4498100 (1985-02-01), Bunting et al.
G. Illetschko and H. Schonfelder, "Ein Kammfilter fur das PAL-Verfahrene", Internatinale Elektronische Rundschau 1969, Nr. 8, pp. 197-200 and English translation.

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