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. 22, 2014
Filed:
Aug. 31, 2006
Xiao Hui Yang, Saratoga, CA (US);
Guo Yin, Shanghai, CH;
Xiao Hui Yang, Saratoga, CA (US);
Guo Yin, Shanghai, CH;
WG Security Products, Campbell, CA (US);
Abstract
An EAS system comprises a central circuit for sequentially generating signal bursts. At least one local transmitting antenna is positioned remote from the central circuit for receiving and propagating the signal bursts into an interrogation zone. A receiver is associated with the local transmitting antenna for detecting the presence of an electronic tag in the interrogation zone by means of a response tag signal from the electronic tag and transmitting the response tag signal to the central circuit. A synchronization device is provided for detecting the signal burst propagated from the local transmitting antenna, and controls the activation of the receiver for the purpose of receiving the response tag signal based on the timing of the signal burst.