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.:

US 8881974 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 11, 2014

Filed:

Dec. 10, 2003
Applicants:

Paul Dischamp, Paris, FR;

Christophe Giraud, Paris, FR;

Inventors:

Paul Dischamp, Paris, FR;

Christophe Giraud, Paris, FR;

Assignee:

Oberthur Technologies, Colombes, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 7/10 (2006.01); G06F 17/00 (2006.01); G06F 21/00 (2013.01); G06F 11/30 (2006.01); G01D 15/20 (2006.01); G06F 12/14 (2006.01); G06K 19/073 (2006.01);
U.S. Cl.
CPC ...
G06K 19/073 (2013.01);
Abstract

The invention concerns a secure electronic entity () containing a time measuring unit () and comprising a unit () for certifying an information concerning a date or a time interval, the certifying unit () receiving from the time measuring unit () data concerning the date or the time interval and producing certification data of the information concerning a date or a time interval addressed to and external entity. The invention is applicable in particular to microcircuit cards.


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