Color difference signal processing

Details Color difference signal processing Color difference signal processing

2005-11-22

2005-11-22

Lee, Michael H. (Department: 2614)

Television

Image signal processing circuitry specific to television

Dc insertion

C348S692000, C348S694000

Reexamination Certificate

active

06967691

ABSTRACT:
A color video display signal processor comprises a source of a color difference signal and an analog to digital converter for converting the color difference signal to a digital signal. A potential divider is coupled to reference voltages of the analog to digital converter for generating a clamp voltage. A clamp arrangement is coupled to the color difference signal and to the analog to digital converter and receives the clamp reference voltage. In response to a clamp pulse the clamp arrangement couples said clamp voltage to said color difference signal.

REFERENCES:
patent: 5200833 (1993-04-01), Suzuki et al.
patent: 5371552 (1994-12-01), Brummette et al.
patent: 60171889 (1985-05-01), None
patent: 07203485 (1995-04-01), None

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