Title:
RFID COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/072812
Kind Code:
A3
Abstract:
The present invention relates to a RFID communication system comprising an interrogator (10) including a signal generator (12) for generating an interrogation signal at a predetermined frequency f0 and a first interrogator antenna (11) for transmitting said interrogation signal and receiving a first reply signal at a frequency f0, and processing means (13), and a passive transponder (20) including a first transponder antenna (21) for receiving said interrogation signal and a chip (22) comprising nonlinear components for generating said first reply signal in response to the interrogation signal, said first reply signal being transmitted by said first transponder antenna. According to the invention, the interrogator is arranged to receive a second reply signal whose frequency is a multiple of the predetermined frequency f0, 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.
Inventors:
TEDJINI SMAIL (FR)
DUROC YVAN (FR)
ANDIA VERA GIANFRANCO (FR)
LOUSSERT CHRISTOPHE (FR)
RECOULY MARC (FR)
DUROC YVAN (FR)
ANDIA VERA GIANFRANCO (FR)
LOUSSERT CHRISTOPHE (FR)
RECOULY MARC (FR)
Application Number:
PCT/IB2013/002628
Publication Date:
July 03, 2014
Filing Date:
November 07, 2013
Export Citation:
Assignee:
INST POLYTECHNIQUE GRENOBLE (FR)
TAGSYS (FR)
TAGSYS (FR)
International Classes:
H04B5/00; G06K19/07
Foreign References:
| EP2098979A1 | 2009-09-09 | |||
| US3944928A | 1976-03-16 | |||
| US5626630A | 1997-05-06 |
Attorney, Agent or Firm:
CABINET BEAUMONT (Grenoble, Grenoble, FR)
Download PDF:
Previous Patent: METHOD OF PROCESSING SEISMIC IMAGE OF THE SUBSURFACE
Next Patent: ACCUMULATING CHARGE FROM MULTIPLE IMAGING EXPOSURE PERIODS
Next Patent: ACCUMULATING CHARGE FROM MULTIPLE IMAGING EXPOSURE PERIODS