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:
Jul. 26, 2022
Filed:
Jul. 21, 2017
Applicant:
Tagsys, La Ciotat, FR;
Inventor:
Luc Bellisard, Seyssins, FR;
Assignee:
TAGSYS, La Ciotat, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/06 (2006.01); G06K 7/10 (2006.01); G06K 19/07 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0656 (2013.01); G06K 7/10366 (2013.01); G06K 19/0723 (2013.01);
Abstract
A secure communication method between an RFID transponder and an RFID reader. The method includes at least the following steps: the RFID reader sends a series of random numbers Ato the RFID transponder; the RFID transponder sends a series of random numbers Ato the RFID reader; the RFID reader sends a result Rto the at least one RFID transponder; the RFID transponder compares the result Rwith a result R'. If R′ is equal to R, then the RFID transponder switches from a locked communication mode to an unlocked communication mode, and sends a result R′ to the at least one RFID reader.