Generating an adjustable signal
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United States of America Patent
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Oct 22, 2013
Grant Date -
May 24, 2012
app pub date -
Sep 30, 2011
filing date -
Nov 22, 2010
priority date (Note) -
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Abstract
A method and device for generating an adjustable signal includes a voltage generator configured to continuously adjust an output voltage and output the voltage, a ΣΔ modulator configured to output a digital signal of pre-determined-cycle based on the output voltage and a reference voltage, a counter configured to count the number of a target level in the digital signal of a pre-determined number of cycles, and a digital signal generator configured to generate a target signal based on the number of the target level. The method and device may improve the accuracy of the generated signal while remaining the same feel of continuous adjustment.
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