Pulse width modulation circuit and pulse width modulation signal generating method having two refresh rates
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United States of America Patent
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Dec 9, 2014
Grant Date -
Nov 21, 2013
app pub date -
Dec 28, 2012
filing date -
May 16, 2012
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Abstract
A PWM circuit that can have two refresh rates, including: a first PWM signal generator and a second PWM signal generator; wherein the first PWM signal generator and the second PWM signal generator respectively control refresh rates in two dimensions of an output data generated from a target apparatus. A PWM signal generation method that can have two refresh rates, including: generating a first PWM signal; generating a second PWM signal; and controlling refresh rates in different dimensions of an output data generated from a target apparatus respectively by using the first PWM signal and the second PWM signal.
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