Television – Bandwidth reduction system – Format type
Patent
1996-01-26
1999-11-30
Lee, Michael H.
Television
Bandwidth reduction system
Format type
348206, H04N 701, H04N 1120, H04N 328
Patent
active
059951524
ABSTRACT:
A video monitor including logic circuitry which superimposes a high frequency periodic wave on the vertical positioning provided by the monitor's vertical deflection plates in low resolution modes. The waveform operates to slightly and periodically adjust the electromagnetic output of the vertical deflection plates, enabling the electron beam to pass through the shadow mask in a plurality of locations. In low resolution modes, the electron beam passes through additional holes in the shadow mask line that formerly presented a black stripe, thus enabling additional pixels to be struck and causing the black lines to disappear. This creates the appearance of a larger electron beam without changing the electron gun or adding additional deflection hardware.
REFERENCES:
patent: 2143933 (1939-01-01), Barthelemy
patent: 2222934 (1940-11-01), Blumlein
patent: 3418519 (1968-12-01), Ferrier, Jr. et al.
patent: 3792196 (1974-02-01), Wendland
patent: 4301473 (1981-11-01), Wallace et al.
patent: 4612482 (1986-09-01), Beamon, III et al.
patent: 4710799 (1987-12-01), Songer
patent: 4725756 (1988-02-01), Kaplan
patent: 5162694 (1992-11-01), Capek et al.
patent: 5198730 (1993-03-01), Vancil
Dell USA, L.P., A Texas Limited Partnership
Lee Michael H.
Terrile Stephen A.
LandOfFree
Video monitor which superimposes a high frequency periodic wave does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video monitor which superimposes a high frequency periodic wave , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video monitor which superimposes a high frequency periodic wave will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1679506