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. 10, 2012
Filed:
Oct. 10, 2007
Applicants:
Junxiong Deng, San Diego, CA (US);
Maulin Pareshbhai Bhagat, San Diego, CA (US);
Gurkanwal Singh Sahota, San Diego, CA (US);
Inventors:
Junxiong Deng, San Diego, CA (US);
Maulin Pareshbhai Bhagat, San Diego, CA (US);
Gurkanwal Singh Sahota, San Diego, CA (US);
Assignee:
QUALCOMM, Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/02 (2006.01); H04B 1/04 (2006.01); H01Q 11/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A transmitter includes a transformer and a transformer tuning circuit. The transformer transforms a differential radio frequency (RF) signal to a single-ended RF signal. The transformer tuning circuit tunes the transformer to permit the transmitter to transmit the single-ended RF signal in a first frequency band (e.g., cellular frequency band) or a second frequency band (e.g., PCS frequency band).