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. 09, 2002
Filed:
Jul. 06, 1999
Applicant:
Inventors:
Hanno Dietrich, Paderborn, DE;
Andreas Rottmann, Hagen, DE;
Assignee:
Orga Kartensysteme GmbH, Paderborn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 1/906 ;
U.S. Cl.
CPC ...
G06K 1/906 ;
Abstract
The invention relates to a method and an apparatus for controlling communication between a terminal and a number of chip cards. Electromagnetic waves are continuously emitted by the terminal to form a communication zone within which communication between the terminal and the chip cards is initiated and sustained. After the sequence emitted by a first chip card, an identifier is generated in the terminal identifying the same chip card and is stored in the terminal.