发明名称 |
SIGNAL LINE STRUCTURE FOR A RADIO-FREQUENCY IDENTIFICATION SYSTEM |
摘要 |
The invention provides one or more signal line structures that produce an electromagnetic field having a magnitude of at least an interrogation threshold of a radio frequency identification (RFID) tag for a substantial portion of an interrogation region. The signal lines may be made from copper and laid across a shelf in a storage area. The electromagnetic field may cause the tag to backscatter radio frequency (RF) signals to an RFID reader via the signal line. |
申请公布号 |
EP2212831(B1) |
申请公布日期 |
2016.08.31 |
申请号 |
EP20080834691 |
申请日期 |
2008.09.22 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
ERICKSON, DAVID P.;WALDNER, MICHELE A.;MCGEE, JAMES P.;BANERJEE, SWAGATA R. |
分类号 |
H01Q1/34;H01Q1/22;H01Q13/10;H01Q21/00;H01Q21/28 |
主分类号 |
H01Q1/34 |
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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