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. 21, 2012
Filed:
Sep. 10, 2010
Yogesh Darwhekar, Bhopal, IN;
Alok Prakash Joshi, Thane, IN;
Gireesh Rajendran, Trivandrum, IN;
Subhashish Mukherjee, Bangalore, IN;
Apu Sivadas, Bangalore, IN;
Yogesh Darwhekar, Bhopal, IN;
Alok Prakash Joshi, Thane, IN;
Gireesh Rajendran, Trivandrum, IN;
Subhashish Mukherjee, Bangalore, IN;
Apu Sivadas, Bangalore, IN;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A near field communication (NFC) transceiver contains a transmitter portion to generate a transmit wireless signal, and a receiver portion to receive and process a receive wireless signal. The circuit further contains a shunt capacitor, a switch, and an antenna interface to couple the transmitter portion and the receiver portion to an antenna designed to communicate with external antennas by inductive coupling. The switch couples the shunt capacitor in parallel with the antenna in one operational mode, and decouples the shunt capacitor from the antenna in another operational mode. Transmit and receive performance of the NFC transceiver are enhanced as a result.