Dual picture video signal processsing circuit

Details Dual picture video signal processsing circuit Dual picture video signal processsing circuit

1990-05-16

1992-01-14

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358183, H04N 5272

Patent

active

050815229

ABSTRACT:
A dual picture video signal processisng circuit performs a subpicture processisng after the Y/C separation when a composite video signal is supplied. When separate Y and C signals are supplied, the circuit performs the subpicture processing directly to the Y and C signals. By this feature the circuit automatically performs the subpicture processing both for the composite video signal and the separate Y and C signals for the subpicture, and deterioration of the picture quality of the subpicture is prevented.

REFERENCES:
patent: 4750039 (1988-06-01), Willis
patent: 4782391 (1988-11-01), McNeeley et al.
patent: 4802000 (1989-01-01), Willis

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