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. 29, 2018
Filed:
Dec. 18, 2015
Applicant:
Infineon Technologies Ag, Neubiberg, DE;
Inventors:
Stephan Rampetzreiter, Graz, AT;
Martin Buchsbaum, Graz, AT;
Jakob Jongsma, Graz, AT;
Georg Skacel, Graz, AT;
Bernhard Wedl, Graz, AT;
Andreas Woerle, Graz, AT;
Assignee:
INFINEON TECHNOLOGIES AG, Neubiberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 19/07 (2006.01); G06K 19/077 (2006.01);
U.S. Cl.
CPC ...
G06K 19/0726 (2013.01); G06K 19/0723 (2013.01); G06K 19/07794 (2013.01);
Abstract
According to one embodiment, a chip card is described including a chip, an antenna, a coupling structure configured to transmit energy from the antenna to the chip and a control element configured to control, depending on a field strength of a magnetic field to which the chip card is exposed, at least one of the resonance frequency of the antenna, the quality factor of the antenna and an energy transmission efficiency of the coupling structure.