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:
Nov. 29, 2005
Filed:
Jun. 26, 2000
Michael Anthony Pugel, Noblesville, IN (US);
David Jay Duffield, Indianapolis, IN (US);
Robert James Ramspacher, Fishers, IN (US);
Michael Anthony Pugel, Noblesville, IN (US);
David Jay Duffield, Indianapolis, IN (US);
Robert James Ramspacher, Fishers, IN (US);
Thomson Licensing S.A., Boulogne-Billancourt, FR;
Abstract
A device for sensing unauthorized use of an electronic security device has a host device and a detector with a loop antenna associated with the port that receives the electronic security device, such as a smart card. The host device comprises a housing having the port formed therein. In one embodiment, the port detector senses radiation emitted from unauthorized use of the electronic security device by attachment of hot-wire conductors to the security device, which conductors carry currents through the port and the detector. In an alternate embodiment, the dielectric constant of the electronic security device is measured and compared to a predetermined value for distinguishing a nominal device from one with attached hot wiring.