Multi-protocol rfid system
作者： Steven J. Catanach , Robert W. Tiernay , Joseph H. Kao , Michael Melville , Kelly Gravelle
DOI:
关键词: Interference (wave propagation) 、 Electronic engineering 、 Computer hardware 、 Backscatter 、 Multi protocol 、 Engineering 、 Telecommunications link 、 Synchronization 、 Time frame
摘要: A multi-protocol RFID interrogating system employs a synchronization technique (step-lock) for backscatter that allows simultaneous operation of closely spaced interrogators. The can communicate with transponders having different output protocols and active including: Title 21 compliant transponders; IT2000 provide an extended mode capability beyond 21; EGOTM transponders, SEGOTM ATA, ISO, ANSI AAR IAG technology transponders. implements step-lock operation, whereby adjacent interrogators are synchronized to ensure all downlinks operate within the same time frame uplinks frame, eliminate downlink on uplink interference.
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