Invention Grant
- Patent Title: Multi-protocol RFID system
- Patent Title (中): 多协议RFID系统
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Application No.: US14808696Application Date: 2015-08-12
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Publication No.: US09361492B2Publication Date: 2016-06-07
- Inventor: Kelly Gravelle , Steven J. Catanach , Robert W. Tiernay , Joseph H. Kao , Michael Melville
- Applicant: Amtech Systems, LLC
- Applicant Address: US NM Albuquerque
- Assignee: Amtech Systems, LLC
- Current Assignee: Amtech Systems, LLC
- Current Assignee Address: US NM Albuquerque
- Agency: Caesar Rivise, PC
- Main IPC: H04Q5/22
- IPC: H04Q5/22 ; G08B13/14 ; G08G1/01 ; G06K7/10 ; G06K7/00 ; G06K7/016 ; G07B15/06
Abstract:
A multi-protocol RFID interrogating system employs a synchronization technique (step-lock) for a backscatter RFID system that allows simultaneous operation of closely spaced interrogators. The multi-protocol RFID interrogating system can communicate with backscatter transponders having different output protocols and with active transponders including: Title 21 compliant RFID backscatter transponders; IT2000 RFID backscatter transponders that provide an extended mode capability beyond Title 21; EGO™ RFID backscatter transponders, SEGO™ RFID backscatter transponders; ATA, ISO, ANSI AAR compliant RFID backscatter transponders; and IAG compliant active technology transponders. The system implements a step-lock operation, whereby adjacent interrogators are synchronized to ensure that all downlinks operate within the same time frame and all uplinks operate within the same time frame, to eliminate downlink on uplink interference.
Public/Granted literature
- US20160004893A1 MULTI-PROTOCOL RFID SYSTEM Public/Granted day:2016-01-07
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