Invention Application
- Patent Title: EAS READER DETECTING EAS FUNCTION FROM RFID DEVICE
- Patent Title (中): EAS读取器从RFID设备检测EAS功能
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Application No.: PCT/US2005/041680Application Date: 2005-11-18
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Publication No.: WO2006055709A1Publication Date: 2006-05-26
- Inventor: LIAN, Ming-Ren , SHAFER, Gary, Mark
- Applicant: SENSORMATIC ELECTRONICS CORPORATION , LIAN, Ming-Ren , SHAFER, Gary, Mark
- Applicant Address: 6600 Congress Avenue, Boca Raton, Florida 33487 US
- Assignee: SENSORMATIC ELECTRONICS CORPORATION,LIAN, Ming-Ren,SHAFER, Gary, Mark
- Current Assignee: SENSORMATIC ELECTRONICS CORPORATION,LIAN, Ming-Ren,SHAFER, Gary, Mark
- Current Assignee Address: 6600 Congress Avenue, Boca Raton, Florida 33487 US
- Priority: US60/629,571 20041118
- Main IPC: G08B13/24
- IPC: G08B13/24
Abstract:
A reader device for electronic article surveillance (EAS) is disclosed which includes an exciter; a transmitter, the transmitter operatively coupled to the exciter via a first signal gate; a transmitter antenna operatively coupled to the transmitter; a receiver antenna operatively coupled to a receiver front end; and a signal detector, the receiver front end operatively coupled to the signal detector via a second signal gate, wherein the exciter generates a burst of electromagnetic energy in a pulse or a continuous wave at an operating frequency of a radiofrequency identification (RFID) tag within a read range of the EAS reader such that the energy level of the burst generates a residual or ring-down signal from the RFID tag indicating the presence of the RFID tag without activating the RED functions of the tag. The ring-down signal is read by the EAS reader as an EAS function.
Information query