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:
Apr. 18, 2006
Filed:
Mar. 23, 2004
Applicant:
Janice Chiu, Tustin, CA (US);
Inventor:
Janice Chiu, Tustin, CA (US);
Assignee:
Broadcom Corporation, Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A circuit is provided for controlling the gain of an amplifier, such as an amplifier that may be used in telecommunication devices. The circuit includes an analog portion that receives signals from one or more mixers and that produces an output that is an inverse logarithmic function of the input signal. The output signal is digitally processed by a digital portion of the circuit, which determines whether gain of the amplifier should be increased, decreased, or held constant. Also, methods are provided for controlling the gain of an amplifier.