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:
Feb. 02, 2010
Filed:
Feb. 26, 2008
Applicants:
Francis Beaudoin, Brossard, CA;
Matthew Mcadam, Vancouver, CA;
Inventors:
Francis Beaudoin, Brossard, CA;
Matthew McAdam, Vancouver, CA;
Assignee:
PMC-Sierra, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods and apparatus control the gain of an RF amplifier. In an example, the RF amplifier is biased for low distortion. The bias is not changed to adjust gain. Rather, the amplifier's gain is controlled by selectively activating or deactivating RF amplifier cells of the RF amplifier. This individual RF amplifier cells to be biased for good linearity and relatively good spectral performance, while permitting gain control.