Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-11-29
2005-11-29
Lefkowitz, Sumati (Department: 2675)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S030000, C345S055000, C345S093000, C345S204000, C345S211000, C345S212000, C345S213000, C345S214000, C345S215000, C330S096000, C330S098000, C330S123000, C330S127000, C330S199000, C330S250000, C330S253000
Reexamination Certificate
active
06970152
ABSTRACT:
A column driver for a graphics display has reduced power consumption by sharing power between upper and lower column amplifiers. The upper column amplifier operates over an upper supply range, while the lower column amplifier operates over a lower supply range. The upper and lower amplifiers have the substantially the same quiescent operating current such that the total operating current for the column drivers in the graphics display is reduced by a factor of two. Each column amplifier can be driven over half of the power-supply range such that lower voltage amplifiers may be employed for the column driver amplifiers.
REFERENCES:
patent: 5598180 (1997-01-01), Suzuki et al.
patent: 6166725 (2000-12-01), Isami et al.
patent: 6256025 (2001-07-01), Imai et al.
patent: 6501467 (2002-12-01), Miyazaki
patent: 2002/0008686 (2002-01-01), Kumada et al.
Bell Marshall J.
Erhart Richard Alexander
Ludden Christopher A.
Beck Alexander S.
Hertzberg Brett A.
Merchant & Gould P,C,
National Semiconductor Corporation
LandOfFree
Stacked amplifier arrangement for graphics displays does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stacked amplifier arrangement for graphics displays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stacked amplifier arrangement for graphics displays will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3460384