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:
Feb. 07, 2012
Filed:
May. 16, 2005
Applicants:
Pierre Rizzo, Aix en Provence, FR;
Christophe Moreaux, Eguilles, FR;
Inventors:
Pierre Rizzo, Aix en Provence, FR;
Christophe Moreaux, Eguilles, FR;
Assignee:
STMicroelectronics SA, Montrouge, FR;
Primary Examiner:
Int. Cl.
CPC ...
H04Q 5/00 (2006.01); G06K 19/077 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electromagnetic transponder and a method for controlling by pulse trains a switch for modulating the load of this transponder in an electromagnetic field from which it extracts its power supply, the duty ratio of the pulses being controlled according to the transponder supply voltage.