Method of gray scale generation for displays using a sample and hold circuit with discharge
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
May 30, 2002
app pub date -
Nov 29, 2000
filing date -
Nov 29, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A circuit and method for generating pulse width modulated signal from an analog video signal. The circuit includes a first circuit portion that includes a first switch, a voltage storage device that stores a portion of the analog video signal as a voltage value according to the first switch activated according to sample time information within a portion of time of the analog video signal, and a second switch that outputs the stored voltage value when activated according to a next portion of time of the analog video signal. The circuit also includes a second circuit portion that converts the outputted voltage value into a pulse width modulated signal.
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