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:
Oct. 18, 2016
Filed:
Dec. 22, 2014
Applicant:
Qualcomm, Incorporated, San Diego, CA (US);
Inventors:
Sherif Galal, Irvine, CA (US);
Xinwang Zhang, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H03G 11/00 (2006.01); H03G 3/20 (2006.01); H03F 1/52 (2006.01); H03F 3/185 (2006.01); H03F 3/217 (2006.01); H04R 29/00 (2006.01);
U.S. Cl.
CPC ...
H04R 3/007 (2013.01); H03F 1/523 (2013.01); H03F 3/185 (2013.01); H03F 3/2173 (2013.01); H03G 3/20 (2013.01); H03G 11/00 (2013.01); H03F 2200/03 (2013.01); H03F 2200/321 (2013.01); H03F 2200/462 (2013.01); H03F 2203/45138 (2013.01); H04R 29/003 (2013.01);
Abstract
In one embodiment, a method for speaker operation comprises sensing an input common mode signal of a driver, wherein the driver drives a speaker, and adjusting the input common mode signal of the driver based on a difference between the sensed input common mode signal and a reference signal. The method also comprises sensing a current of a coil of the speaker, and control an output volume of the speaker based at least in part on the sensed current.