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.:
Date of Patent:
Nov. 22, 2016
Filed:
Mar. 28, 2013
Applicant:
Hewlett-packard Development Company, L.p., Houston, TX (US);
Inventor:
Hsin-Tso Lin, Taipei, TW;
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/181 (2006.01); H03F 3/183 (2006.01); H03F 3/185 (2006.01); H03F 1/30 (2006.01);
U.S. Cl.
CPC ...
H03F 3/181 (2013.01); H03F 1/305 (2013.01); H03F 3/183 (2013.01); H03F 3/1855 (2013.01);
Abstract
An audio amplifier is to transition between a power-down mode and an active mode, based on assertion and deassertion of a power down signal. A power down control module is to selectively assert and deassert the power down signal to the audio amplifier. The power down control module may identify at least one of a digital detection signal and an analog detection signal. The digital detection signal indicates the availability of a digital audio signal to be amplified, and the analog detection signal indicates the availability of an analog audio signal to be amplified.