Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Patent
1997-06-24
1998-11-24
Brier, Jeffery
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
345 3, 345 99, G09G 500, G09G 336
Patent
active
058414304
ABSTRACT:
An analog video interface for a digital video display, comprising an analog video input for receiving at least one analog video signal with composite or separate horizontal and vertical deflection signals; digitizing apparatus for digitizing the analog video signal; apparatus for generating a basic clock signal having a frequency at least n times a desired video frequency, where n.gtoreq.1 and for generating control signals for the digital display and a sampling clock signal for the digitizing means in synchronization with the basic clock signal. The video interface further includes determining the actual video frequency of the analog video signal from the actual received video signals and a programmable frequency synthesizer responsive to the actual video frequency for synthesizing the basic clock signal having a frequency at least n times the determined actual video frequency where n.gtoreq.1.
REFERENCES:
patent: 3649750 (1972-03-01), Gibson
patent: 4760387 (1988-07-01), Ishii et al.
patent: 4860246 (1989-08-01), Inoue
patent: 4926166 (1990-05-01), Fujisawa et al.
patent: 4977446 (1990-12-01), Shiomi et al.
patent: 4998100 (1991-03-01), Ishii
patent: 5068732 (1991-11-01), Satoh
patent: 5121440 (1992-06-01), Ballard et al.
patent: 5140427 (1992-08-01), Nakane et al.
patent: 5172221 (1992-12-01), Ko
patent: 5285192 (1994-02-01), Johary et al.
patent: 5293485 (1994-03-01), Zenda
patent: 5309168 (1994-05-01), Itoh et al.
patent: 5389859 (1995-02-01), Stesson et al.
patent: 5400053 (1995-03-01), Johary et al.
patent: 5479184 (1995-12-01), Tokumitsu
patent: 5508714 (1996-04-01), Zenda
patent: 5515068 (1996-05-01), Uragami et al.
patent: 5579025 (1996-11-01), Itoh
patent: 5610621 (1997-03-01), Itoh et al.
patent: 5673058 (1997-09-01), Uragami et al.
Bell Paul A.
Brier Jeffery
ICL Personal Systems Oy
LandOfFree
Digital video display having analog interface with clock and vid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital video display having analog interface with clock and vid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital video display having analog interface with clock and vid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1708329