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:
Apr. 10, 2012
Filed:
May. 26, 2005
Applicants:
Jean-paul Caruana, Marseilles, FR;
Alain Guinet, Le Beausset, FR;
Gregory Capomaggio, Marseilles, FR;
Inventors:
Jean-Paul Caruana, Marseilles, FR;
Alain Guinet, Le Beausset, FR;
Gregory Capomaggio, Marseilles, FR;
Assignee:
Gemalto SA, Meudon, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 5/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of demodulating signals of an electromagnetic field induced by a contactless transponder includes a step in which the signals from the transponder are detected at given times or frequency. The times or frequency of the detection are synchronized in phase with the electromagnetic field. An associated demodulator and reader are also disclosed.