Chroma generation system

Details Chroma generation system Chroma generation system

1977-06-01

1979-02-13

Griffin, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 902

Patent

active

041398637

ABSTRACT:
A chroma generation system provides the six major discrete colors in a NTSC color television system. This is achieved simply and inexpensively by a pair of resonant circuits which shift a fundamental color subcarrier signal by lead and lag relationships to provide yellow and magenta colors, respectively, and also provides the proper magnitudes so that when the vectors are combined, a red signal results. The fundamental color signal when inverted provides the complements of the foregoing colors to thus provide the six different discrete saturated colors.

REFERENCES:
patent: 2943142 (1960-06-01), Loughlin
patent: 3146302 (1964-08-01), Moore
patent: 3485943 (1969-12-01), Gold
patent: 3715479 (1973-02-01), Brush et al.
patent: 3825673 (1974-07-01), Schreiner et al.
patent: 3886588 (1975-05-01), Dalke
patent: 4003078 (1977-01-01), Owen

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