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.

Date of Patent:
Oct. 20, 2015

Filed:

Oct. 31, 2012
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Alain Bruno Chateau, Cagnes sur Mer, FR;

D Georges Poissonnier, Paris, FR;

Vasile Zoicas, La Gaude, FR;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01Q 1/22 (2006.01); H01Q 1/24 (2006.01); H01Q 1/27 (2006.01); H01Q 7/00 (2006.01); A61B 5/0428 (2006.01); H02J 7/02 (2006.01); H02J 7/04 (2006.01); H02J 17/00 (2006.01); H01Q 5/321 (2015.01); H04B 5/00 (2006.01);
U.S. Cl.
CPC ...
H01Q 1/2225 (2013.01); A61B 5/0428 (2013.01); H01Q 1/248 (2013.01); H01Q 1/273 (2013.01); H01Q 5/321 (2015.01); H01Q 7/00 (2013.01); H02J 7/025 (2013.01); H02J 7/045 (2013.01); H02J 17/00 (2013.01); H04B 5/0075 (2013.01); A61B 2560/0214 (2013.01); H04B 5/0037 (2013.01);
Abstract

A multifunction antenna is described in which the multifunction antenna is divided into a first segment and a second segment by an impedance circuit that produces low impedance at a low frequency and high impedance at a high frequency. A high frequency radio frequency (HF-RF) signal may be transmitted or received using only the first segment of the multifunction antenna from a HF-RF transceiver by blocking the HF-RF signal from the second segment by the impedance circuit. A low frequency radio frequency (LF-RF) signal may be received using both the first segment and the second segment of the multifunction antenna by passing the LF-RF signal through the impedance circuit.


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