Li & Cai Intellectual Property (USA) Office
Audio control circuit
An audio control circuit is provided in the present disclosure. The audio control circuit includes an input module, a volume signal detecting module and a volume adjusting module. The input module is used for receiving an audio signal. The volume signal detecting module is used for receiving a volume control signal and generates a volume adjusting signal according to the volume control signal. The volume adjusting module is used for receiving the audio signal and the volume adjusting signals and generates an amplified audio signal according to the audio signal and the volume adjusting signal. The volume control signal is a pulse width modulation signal.
ANPEC ELECTRONICS CORPORATION
H H H H H
H03G H03G H03G H04R H04R
inventional inventional inventional additional additional
Che-Chang
Chang