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:
Jan. 18, 2011
Filed:
Jul. 07, 2006
Ulrich Friedrich, Ellhofen, DE;
Ulrich Friedrich, Ellhofen, DE;
Atmel Automotive GmbH, Heilbronn, DE;
Abstract
A method for transponder access control is disclosed, in which a first identification is stored in the transponder, which is transmitted to a reader unit upon appropriate request by the unit. At least one second identification and an identification selection criterion are stored in the transponder, during a request by the reader unit depending on the identification selection criterion either the first identification or the at least second identification is transmitted and, when the second identification is transmitted, access to the transponder, particularly to the first identification, is released by the transponder when the reader unit transmits a password assigned to the second identification to the transponder.