Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jian Wen Chen0
Chin Yang Chen0
Date of Patent
July 26, 2011
0Patent Application Number
124834900
Date Filed
June 12, 2009
0Patent Primary Examiner
Patent abstract
A circuit for reducing popping sound comprises a waveform generator, a voltage accumulator, and a comparator. The waveform generator is configured for generating a periodic waveform, and the voltage accumulator is configured for generating an increased voltage. The comparator is configured for comparing the periodic waveform with the increased voltage for generating a successive pulse signal. A percentage of a duty cycle in the successive pulse signal is increased gradually.
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