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:
Dec. 11, 2007
Filed:
Nov. 12, 2003
Applicants:
Pierre Rizzo, Aix en Provence, FR;
Jérôme Conraux, Trets, FR;
Inventors:
Pierre Rizzo, Aix en Provence, FR;
Jérôme Conraux, Trets, FR;
Assignee:
STMicroelectronics S.A., Montrouge, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 1/66 (2006.01); H04Q 5/22 (2006.01); G08B 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electromagnetic transponder intended to draw the power necessary to its operation of from a field radiated by a terminal of transmission of a carrier at a first supply frequency and to back-modulate the received signal at the rate of a sub-carrier at a second frequency lower than the first one, and comprising means capable of demodulating and decoding signals modulated by said sub-carrier, as well as a system of communication between such transponders.