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:
May. 22, 2007
Filed:
Mar. 27, 2002
Applicant:
Paul Dischamp, Paris, FR;
Inventor:
Paul Dischamp, Paris, FR;
Assignee:
Oberthur Card Systems SA, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 19/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for protecting an electronic entity such as a smart card, against simple/differential power analysis, by integrating a current accumulator in said entity. The current accumulator () powers a processor (P) via a multiplexer () when the processor is loaded to execute so-called sensitive operations.