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. 20, 2018
Filed:
Dec. 20, 2016
Applicant:
Avnera Corporation, Beaverton, OR (US);
Inventors:
Ali Hadiashar, Portland, OR (US);
Wai Laing Lee, Austin, TX (US);
Assignee:
Avnera Corporation, Beaverton, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/20 (2006.01); H03F 3/183 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 3/183 (2013.01); H03F 3/45941 (2013.01); H03F 2200/03 (2013.01); H03F 2200/372 (2013.01); H03F 2203/45418 (2013.01);
Abstract
A new compensation system for an audio input reduces noise by matching feedback ratios in the positive and negative paths. A variable resistance network allows for fine control of resistance trimming in one of the signal paths, which allows for compensation between tolerance of resistors that are external to an integrated circuit and those that are internal to the integrated circuit.