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. 09, 2011
Filed:
Aug. 17, 2009
Applicants:
Hien Nguyen, San Diego, CA (US);
Vijay Parpia, Sunnyvale, CA (US);
Yi Zhou, San Diego, CA (US);
Inventors:
Assignees:
Sony Corporation, Tokyo, JP;
Sony Electronics Inc., Park Ridge, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An impedance matching circuit for a radio receives antenna signals and has its matching elements, such as capacitors, progressively switched into the circuit, with the matching element configuration resulting in the highest RSSI being subsequently used until a succeeding test or antenna impedance change. The effect of the matching circuit is accounted for in the transmitter calibration routine so that the matching circuit works for both half duplex and full duplex.