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:
Apr. 22, 2014
Filed:
Jun. 26, 2009
Ming-ren Lian, Boca Raton, FL (US);
Manuel A. Soto, Lake Worth, FL (US);
Douglas A. Narlow, Coral Springs, FL (US);
Ming-Ren Lian, Boca Raton, FL (US);
Manuel A. Soto, Lake Worth, FL (US);
Douglas A. Narlow, Coral Springs, FL (US);
Tyco Fire & Security Services GmbH, Neuhausen am Rheinfall, CH;
Abstract
A method for detecting metal using an electronic article surveillance ('EAS') system. The EAS system includes a transmitter and a receiver. An EAS interrogation signal is transmitted to establish the interrogation zone. The EAS interrogation signal is used to detect EAS markers and metal objects within the interrogation zone. The EAS signal is received and a metal object present in the interrogation zone is detected during a metal detection cycle. The metal object is detected based upon perturbations in the received EAS interrogation signal. The metal detection cycle is periodically interspersed with at least one EAS detection cycle.