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. 24, 2015
Filed:
Apr. 08, 2014
Applicant:
C-media Electronics Inc., Taipei, TW;
Inventor:
Kuen-Ying Ou, Taichung, TW;
Assignee:
C-MEDIA ELECTRONICS INC., Taipei, TW;
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/16 (2006.01); H03G 3/20 (2006.01); G10K 11/178 (2006.01); H03G 3/24 (2006.01); H04R 3/00 (2006.01); H04R 1/10 (2006.01);
U.S. Cl.
CPC ...
H03G 3/20 (2013.01); G10K 11/16 (2013.01); H04R 1/1083 (2013.01); G10K 11/178 (2013.01); G10K 2210/1082 (2013.01); H03G 3/24 (2013.01); H04R 1/1008 (2013.01); H04R 3/002 (2013.01); H04R 2420/09 (2013.01); H04R 2460/01 (2013.01);
Abstract
A headphone with active noise cancelling and auto-calibration method thereof is disclosed. The headphone includes a first gain-amplifier, an active noise cancelling module, a speaker, a measurement circuit, a calibration control circuit and USB driving circuit. Auto-calibration of the headphone is by use of a USB interface in the instant disclosure, so as to significantly reduce calibration time and then improve production efficiency.