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:
Sep. 27, 2016
Filed:
Nov. 07, 2013
Institut Polytechnique DE Grenoble, Grenoble, FR;
Tagsys, La Ciotat, FR;
Smail Tedjini, Beaumont les Valence, FR;
Yvan Duroc, Valence, FR;
Gianfranco Andia Vera, Valence, FR;
Christophe Loussert, Aix-en-Provence, FR;
Marc Recouly, La Ciotat, FR;
INSTITUT POLYTECHNIQUE DE GRENOBLE, Grenoble, FR;
TAGSYS, La Ciotat, FR;
Abstract
An RFID communication system comprises an interrogator including a signal generator for generating an interrogation signal at a predetermined frequency fand a first interrogator antenna for transmitting said interrogation signal and receiving a first reply signal at a frequency f, and processing means, and a passive transponder including a first transponder antenna for transmitting said first rely signal and receiving said interrogation signal and a chip comprising nonlinear components for generating said first reply signal in response to the interrogation signal. The interrogator is arranged to receive a second reply signal whose frequency is a multiple of the predetermined frequency f, said multiple being either odd or even, said second reply frequency being generated by the nonlinear components of the transponder chip, said first and second reply signals being processed by the processing means of the interrogator in order to complete or improve the functionality of the system.