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:
Aug. 11, 2015
Filed:
Apr. 03, 2013
Applicant:
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Inventors:
Assignee:
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 27/20 (2006.01); H04L 27/36 (2006.01); H03F 1/02 (2006.01); H03F 3/24 (2006.01); H04B 1/04 (2006.01); H03C 3/40 (2006.01); H03C 1/00 (2006.01); H03C 1/06 (2006.01);
U.S. Cl.
CPC ...
H04L 27/362 (2013.01); H03F 1/0222 (2013.01); H03F 1/0227 (2013.01); H03F 3/24 (2013.01); H04B 1/0475 (2013.01); H04L 27/368 (2013.01); H03C 1/00 (2013.01); H03C 1/06 (2013.01); H03C 3/40 (2013.01); H03F 2200/336 (2013.01); H03F 2200/451 (2013.01); H04B 2001/0416 (2013.01); H04L 27/361 (2013.01);
Abstract
A method and system for achieving increased efficiency in a quadrature modulated power amplifier () are disclosed. In some embodiments, a supply path () and a gain path () are provided in each of an I-channel and a Q-channel. The supply path () produces a variable voltage and the gain path () produces a gain control signal. The variable voltage and gain control signal are used by a variable gain power amplifier () to modulate a local oscillator signal to produce a modulated radio signal.