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:
Jan. 17, 2006
Filed:
Jun. 24, 2003
Applicants:
Frank Winter, San Diego, CA (US);
Ian Robinson, Venice, CA (US);
Walter Demore, San Diego, CA (US);
Inventors:
Assignee:
Northrop Grumman Corpoation, Los Angeles, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
An amplifier system is provided that switches between operation in a polar mode and a linear mode based on a characteristic of an input signal relative to a threshold level. The system operates as a polar amplifier in the polar mode, and as a linear amplifier in the linear mode. A mode selector controls whether polar components of the input signal are sent to a power amplifier or whether a composite signal is amplified.