Luminance/chrominance separation circuitry

Details Luminance/chrominance separation circuitry Luminance/chrominance separation circuitry

1985-07-29

1987-08-04

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

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358 37, H04N 978

Patent

active

046849777

ABSTRACT:
A frame comb type composite video decoder which does not require motion adaptive processing circuitry generates low frequency luminance signal components from one field of composite video signal. The high frequency luminance component is derived from two lines of composite video signal from each of two fields disposed before and after the field from which the low frequency luminance signals is developed.

REFERENCES:
patent: 4107736 (1978-08-01), Lowry et al.
patent: 4498100 (1985-02-01), Bunting et al.
patent: 4551753 (1985-11-01), Nishizawa et al.
patent: 4598309 (1986-07-01), Casey
patent: 4626895 (1986-12-01), Reitmeier
J. O. Drewery, "The Filtering of Luminance and Chrominance Signals to Avoid Cross-Colour in a PAL Colour System", BBC Eng., 9/76, pp. 8-39.
SN 741,591, Filed 6/5/85 "Video Signal Processing Apparatus", by C. H. Strolle et al.
SN. 615,544, Filed 5/31/84, "Field Comb for Luminance Separation of NTSC Signals", W. A. Moles et al.

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