发明名称 |
Mode-diversity RFAID tag and interrogator system and method for identifying an RFAID transponder |
摘要 |
Methods and apparatus are provided for mode diversity radio frequency identification (RFAID). The apparatus comprises a first transducer configured to receive a first radio frequency (RF) signal, a second transducer configured to receive an acoustic signal, and an impedance modulator coupled to the first transducer and the second transducer and configured to emit a signal identifying an RFAID tag when the first transducer receives the first RF signal and/or the second transducer receives the acoustic signal. The method comprises transmitting an RF signal and an acoustic frequency signal, and detecting a first modulated signal indicating an RFAID transponder. The first modulated signal is based on one of the RF signal and the acoustic signal.
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申请公布号 |
US7259676(B2) |
申请公布日期 |
2007.08.21 |
申请号 |
US20050142054 |
申请日期 |
2005.05.31 |
申请人 |
SYMBOL TECHNOLOGIES, INC. |
发明人 |
KNADLE, JR. RICHARD T.;DURON MARK WILLIAM |
分类号 |
G08B13/14 |
主分类号 |
G08B13/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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