Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-09-18
2007-09-18
Nguyen, Kevin M (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S204000
Reexamination Certificate
active
10872559
ABSTRACT:
A display control circuit disclosed includes a selector circuit, an operational amplifier controlling circuit and an operational amplifier. The selector circuit is connected to a digital image data signal line to output an analog signal of the amplitude corresponding to input digital image data. The operational amplifier controlling circuit is connected to the digital image data signal line to output control signals of the polarity according to the input digital image data. The operational amplifier includes a first input stage and a second input stage, made up by complementary connection of differential transistor pairs of opposite conductivity types, and is designed to selectively turn on a first constant current source supplying the bias current to the first input stage or a second constant current source supplying the bias current to the second input stage depending on the polarity of the control signal.
REFERENCES:
patent: 5006739 (1991-04-01), Kimura et al.
patent: 5440256 (1995-08-01), Erhart et al.
patent: 6100762 (2000-08-01), Kato
patent: 6909414 (2005-06-01), Tsuchi et al.
patent: 7027027 (2006-04-01), Minamizaki et al.
patent: 2001/0026251 (2001-10-01), Hunter et al.
patent: 1088288 (2002-07-01), None
patent: 1396580 (2003-02-01), None
patent: 63-292709 (1988-11-01), None
patent: 8-204470 (1996-08-01), None
patent: 11-88076 (1999-03-01), None
patent: 11-150427 (1999-06-01), None
patent: 11-305735 (1999-11-01), None
patent: 2001-4974 (2001-01-01), None
patent: 2001-156559 (2001-06-01), None
patent: 2002-6812 (2002-01-01), None
patent: 2002-169501 (2002-06-01), None
patent: 3338771 (2002-08-01), None
patent: 2003-22056 (2003-01-01), None
patent: 2003-157054 (2003-05-01), None
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