Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Converging with plural inputs and single output
Reexamination Certificate
2007-09-04
2007-09-04
Zweizig, Jeffrey (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Converging with plural inputs and single output
C327S534000
Reexamination Certificate
active
11433356
ABSTRACT:
A voltage generating circuit that drives multiple output terminals in alternating positive and negative cycles has two resistor ladders, one resistor ladder generating voltages for the positive cycles, the other resistor ladder generating voltages for the negative cycles. Single-ended amplifiers are connected directly to the resistor ladders, and a switching circuit connects each output terminal to a selectable one of the amplifiers. The output terminals may be precharged to opposite potentials at the beginning of positive and negative cycles, and the resistor ladders may include switching elements that initially set all generated voltages to these potentials so that the amplifiers start each cycle with equal input and output levels, reducing overshoot and undershoot. This voltage generating circuit saves space and power in driving, for example, a display panel in a mobile telephone.
REFERENCES:
patent: 6570560 (2003-05-01), Hashimoto
patent: 2002/0175904 (2002-11-01), Matsumoti
patent: 2003/0006979 (2003-01-01), Tsuchi et al.
patent: 2002-353792 (2002-12-01), None
patent: 2003-022056 (2003-01-01), None
Oki Electric Industry Co. Ltd.
Zweizig Jeffrey
LandOfFree
Voltage generating circuit with two resistor ladders does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage generating circuit with two resistor ladders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage generating circuit with two resistor ladders will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3732427