Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1985-07-29
1988-02-23
Shepperd, John W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 27, 358 28, H04N 968, H04N 974
Patent
active
047274123
ABSTRACT:
A phase responsive video parameter control system operative for correcting hue, saturation, and luminance of a phase encoded component of a composite video signal. A digital phase detector detects the instantaneous hue of the video image, and provides a signal which selects which one of a plurality of color intervals or bands the detected instantaneous hue falls in. Prestored digital correction values associated with the selected color interval are retrieved from memory and converted into analog correction signals which modify the phase, amplitude, and DC level of the composite video signal. New digital correction values, which reflect operator control panel adjustments, may be loaded into memory during the vertical retrace interval, thereby allowing frame-by-frame color correction.
REFERENCES:
patent: 3255305 (1966-06-01), Chatten
patent: 3588321 (1971-06-01), Bruch
patent: 3604841 (1971-09-01), Ettlanger
patent: 3649748 (1972-03-01), Knauer
patent: 3740459 (1973-06-01), Okada
patent: 4236174 (1980-11-01), Gall
patent: 4500919 (1985-02-01), Schreiber
patent: 4525736 (1985-06-01), Korman
patent: 4533938 (1985-08-01), Hurst
Fearing Craig F.
Hemsky Robert L.
Orsburn Michael L.
Schwarz Robert E.
Tucker Terry L.
Shepperd John W.
Utah Scientific Advanced Development Center, Inc.
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