ANTI-POP DEVICE FOR AUDIO AMPLIFIERS
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United States of America Patent
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Issued Date -
Nov 9, 2006
app pub date -
May 2, 2006
filing date -
May 3, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An anti-pop device for audio amplifier is suitable for outputting signals to a speaker to produce sound waves. The audio amplifier comprises a pre-processing unit, a filter and a voltage level detection unit electrically connected to the pre-processing unit. The voltage level detection unit detects the supply voltage. As the supply voltage is lower than a predetermined value, the voltage level detection unit outputs a signal to the pre-processing unit for lowering the audio volume so that a pop noise caused by circuit malfunction resulted from excessively-low supply voltage can be prevented.
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