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:
Oct. 31, 2006
Filed:
Apr. 30, 2004
Anthony F. Piccoli, Audubon, NJ (US);
Lawrence Appalucci, Villanova, PA (US);
David Lopez Perez, Ponce, PR (US);
Luis Francisco Solerbonnin, Guanica, PR (US);
Gary T. Mazoki, Sewell, NJ (US);
Anthony F. Piccoli, Audubon, NJ (US);
Lawrence Appalucci, Villanova, PA (US);
David Lopez Perez, Ponce, PR (US);
Luis Francisco SolerBonnin, Guanica, PR (US);
Gary T. Mazoki, Sewell, NJ (US);
Checkpoint Systems, Inc., Thorofare, NJ (US);
Abstract
A security tag includes a combination of a resonant frequency circuit with an adjacent amplification shield for enhancing output signal amplitude. The amplification shield is located adjacent to the resonant frequency circuit and is preferably in the same or substantially the same plane as the resonant frequency circuit or is in a close, generally parallel plane. In an exemplary embodiment, the resonant frequency circuit includes an inductor electrically coupled to a capacitor. The resonant frequency circuit has a center frequency and is arranged to resonate in response to exposure to electromagnetic energy at or near the center frequency, providing an output signal having an amplitude. The amplification shield is arranged to direct a portion of the electromagnetic energy to the resonant frequency circuit to amplify the amplitude of the output signal from the resonant frequency circuit.