Invention Grant
US08314687B2 Multi-protocol RFID system using bit-lock or step-lock synchronization
有权
多协议RFID系统采用位锁或步锁同步
- Patent Title: Multi-protocol RFID system using bit-lock or step-lock synchronization
- Patent Title (中): 多协议RFID系统采用位锁或步锁同步
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Application No.: US13274092Application Date: 2011-10-14
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Publication No.: US08314687B2Publication Date: 2012-11-20
- Inventor: Kelly Gravelle , Steven J. Catanach , Robert W. Tiernay , Joseph H. Kao , Michael Melville
- Applicant: Kelly Gravelle , Steven J. Catanach , Robert W. Tiernay , Joseph H. Kao , Michael Melville
- Applicant Address: US NM Albuquerque
- Assignee: Amtech System, LLC
- Current Assignee: Amtech System, LLC
- Current Assignee Address: US NM Albuquerque
- Agency: Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd.
- Main IPC: H04Q5/22
- IPC: H04Q5/22 ; G05B19/00 ; G08B29/00 ; H04B1/00
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
- US20120032788A1 MULTI-PROTOCOL RFID SYSTEM USING BIT-LOCK OR STEP-LOCK SYNCHRONIZATION Public/Granted day:2012-02-09
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