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. 21, 2026
Filed:
Sep. 13, 2023
Giesecke+devrient Epayments Gmbh, Munich, DE;
Michael Baldischweiler, Munich, DE;
Paul Wurstle, Munich, DE;
GIESECKE+DEVRIENT EPAYMENTS GMBH, Munich, DE;
Abstract
A method is implemented by a chip embedded in a chip card to adjust the internal supply voltage of the chip based on the strength of an external electromagnetic field that powers the chip. The internal supply voltage can be lowered by toggling a reduction in the threshold voltage. The chip includes a sensor register displaying a field strength value dependent on the external field strength and the adjusted internal supply voltage. Additionally, a corresponding computer program product, a storage medium containing the computer program product, a method for setting up the chip within the chip card using the storage medium to execute the method for adjusting the internal supply voltage, as well as a chip card featuring the chip, in which the method for adjusting the internal supply voltage of the chip is implemented, are also provided.