Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1989-11-28
1993-01-26
Shepperd, John W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 28, 358 80, H04N 964, H04N 968
Patent
active
RE0341690
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: 3558806 (1971-01-01), Monahan et al.
patent: 3604841 (1971-09-01), Ettlinger et al.
patent: 3610815 (1971-10-01), Gould et al.
patent: 3637920 (1972-01-01), Becker et al.
patent: 3735026 (1973-05-01), Smith et al.
patent: 3740459 (1973-06-01), Okada
patent: 3824336 (1974-07-01), Gould et al.
patent: 3893166 (1975-07-01), Pugsley
patent: 3970774 (1976-07-01), Bazin et al.
patent: 4069432 (1978-01-01), Bazin
patent: 4096523 (1978-06-01), Belmares-Sarabia et al.
patent: 4223343 (1980-09-01), Belmares-Sarabia et al.
patent: 4272780 (1981-06-01), Belmares-Sarabia et al.
patent: 4314274 (1982-02-01), Atoji et al.
patent: 4410908 (1983-10-01), Belmares-Sarabia et al.
patent: 4418358 (1983-11-01), Poetsch et al.
patent: 4456927 (1984-06-01), Marin
patent: 4511916 (1985-04-01), Fujimoto
patent: 4525726 (1985-06-01), Korman
patent: 4533938 (1985-08-01), Hurst
patent: 4544944 (1985-10-01), Chin
Kitson, et al., "Preprogrammed and Automatic Color Correction for Telecine" SMPTE Journal, Aug. 1974 pp. 633-639.
Pete Comandini, "Signal Processing in the Image Transform System" SMPTE, vol. 86 Aug. 1977.
Harwood, "A Chrominance Demodulator IC with Dynamic Flesh Correction" IEEE Trans. Cons. Electronics., vol. CE-22, pp. 111-117 (Feb. 1976).
Rzeszewski "A Novel Automatic Hue Control System" IEEE Trans. Cons. Electronics, vol. CE-21 pp. 155-162 (May 1975).
Rathore et al, "An Accurate Digital Phase Measurement Scheme" Proceedings of the IEEE vol. 72, No. 3, p. 397 (Mar. 1984).
Bacon James I.
Hemsky Robert L.
Osburn Michael L.
Colorgraphics Systems, Inc.
Shepperd John W.
LandOfFree
Phase responsive composite video signal control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Phase responsive composite video signal control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase responsive composite video signal control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1406177