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:
Mar. 14, 2000
Filed:
Mar. 06, 1998
Applicant:
Inventors:
Bhasker P Patel, Laguna Niguel, CA (US);
Kenneth E Garey, Irvine, CA (US);
Assignee:
Conexant Systems, Inc., Newport Beach, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06G / ;
U.S. Cl.
CPC ...
327560 ; 327363 ; 327563 ; 330260 ; 330291 ;
Abstract
The AGC circuit and method especially applicable in circuits where fast response and stability of the system is necessary, such as where input signals are speech patterns. A gain feedback loop repeatedly adapts the gain and a long term average energy E.sub.mean of the output signal until it approaches a predetermined level. In each pass through the gain feedback loop the long term average energy E.sub.mean is increased by a gain compensation parameter directly proportional to a gain change, thereby rapidly adapting the long term average energy E.sub.mean to converge to the predetermined level.