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:
Jun. 10, 2014
Filed:
Feb. 03, 2011
Applicants:
Franz Amtmann, Graz, AT;
Mario Steiner, Tobelbad, AT;
Heinze Elzinga, Lassnitzhoehe, AT;
Inventors:
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 5/22 (2006.01); G08B 1/08 (2006.01); G08B 21/00 (2006.01); G06K 15/00 (2006.01); G06K 19/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for use in electronic article surveillance EAS is disclosed which comprises a resonant circuit, typically designed for 8.2 MHz operation, in addition to a transponder, such as RFID, for non-contact communication with a communication station. The RFID transponder can provide a signal to detune the resonant circuit to disable the EAS and optionally another signal to tune or retune the resonant circuit to enable or re-enable the EAS. The detuning and tuning or retuning may preferably be achieved using phase change memory material, configured as a programmable switch having two states with different resistances.