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:
Jul. 14, 2015
Filed:
Oct. 18, 2012
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Nitish Krishna Murthy, Allen, TX (US);
Supriyo Palit, Kolkata, IN;
Edwin Randolph Cole, Dallas, TX (US);
Jorge Francisco Arbona Miskimen, Dallas, TX (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/178 (2006.01);
U.S. Cl.
CPC ...
G10K 11/1788 (2013.01); G10K 2210/1081 (2013.01); G10K 2210/3028 (2013.01); G10K 2210/3033 (2013.01); G10K 2210/3214 (2013.01);
Abstract
A method and apparatus for active noise canceling. The method includes retrieving an input sample from at least one of a feedback or feedforward microphone digitized through the sigma-delta converter, retrieving the input sample and a related filter, wherein the filter is customized to the particular headset, outputting a filtered signal through a speaker without any interpolation and reducing order of CIC filters, and outputting a response sharply tapered down.