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:
May. 21, 2013
Filed:
Nov. 18, 2011
Applicants:
Xin Fan, Irvine, CA (US);
Christian Larsen, Irvine, CA (US);
Lorenzo Crespi, Costa Mesa, CA (US);
Inventors:
Assignee:
Conexant Systems, Inc., Newport Beach, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 1/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Presently many audio chips suffer from pop issues, which is especially serious for single ended audio drivers. An audio pop is a disturbance in the output caused by a sudden transition of chip power, particularly when a chip is powered on or powered off. Furthermore, compensation networks included in the amplifiers on audio chips for stability offer a significant path for transmitting power disturbances to the output. Hence, circuitry is developed to suppress pops in the output stages of an amplifier.