发明授权
US06827281B2 Encoded SAW RFID tags and sensors for multi-user detection using IDT finger phase modulation
失效
编码的SAW RFID标签和传感器，用于使用IDT手指相位调制的多用户检测
- 专利标题： Encoded SAW RFID tags and sensors for multi-user detection using IDT finger phase modulation
- 专利标题（中）： 编码的SAW RFID标签和传感器，用于使用IDT手指相位调制的多用户检测
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申请号： US10323827申请日： 2002-12-20
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公开(公告)号： US06827281B2公开(公告)日： 2004-12-07
- 发明人: Peter J. Edmonson , Colin K. Campbell
- 申请人： Peter J. Edmonson , Colin K. Campbell
- 主分类号： G06K1906
- IPC分类号： G06K1906
摘要：
A group of SAW RFID tags or sensors each has a transducer with interdigitated fingers, a different set of fingers in each tag or sensor being reversed in phase to cause the tag or sensor to provide a unique identifier in a returned impulse response produced by the tag or sensor when interrogated by an interrogation signal.
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