The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 04, 2019

Filed:

Feb. 14, 2017
Applicant:

Anpec Electronics Corporation, Hsinchu, TW;

Inventor:

Che-Chang Chang, Hsinchu County, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 7/00 (2006.01); H03G 3/30 (2006.01); H04R 29/00 (2006.01);
U.S. Cl.
CPC ...
H03G 7/004 (2013.01); H03G 3/301 (2013.01); H03G 3/3005 (2013.01); H04R 29/004 (2013.01); H04R 2430/01 (2013.01);
Abstract

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.


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