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.

Patent No.:

US 8488808 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 16, 2013

Filed:

Jul. 18, 2012
Applicant:

Chih-haur Huang, Sinshih Township, Tainan County, TW;

Inventor:

Chih-Haur Huang, Sinshih Township, Tainan County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An audio amplifier includes a timing control circuit, an amplifying circuit, and a bias control circuit. The timing control circuit generates a first power down signal and a second power down signal, in which the first power down signal is asserted before the second power down signal is asserted. The amplifying circuit receives a bias voltage to amplify an audio signal and is deactivated when the first power down signal is asserted. The bias control circuit provides the bias voltage for the amplifying circuit and is deactivated when the second power down signal is asserted.


Find Patent Forward Citations

Huang, Chih-Haur. (2013). Method of powering down an audio amplifier with timing circuit to power down bias control and amplifying circuits in sequence (U.S. Patent No. 8488808). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8488808

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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