发明授权
- 专利标题： Signal line structure for a radio-frequency identification system
- 专利标题（中）： 射频识别系统的信号线结构
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申请号： US11904616申请日： 2007-09-27
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公开(公告)号： US08289163B2公开(公告)日： 2012-10-16
- 发明人: David P. Erickson , Michele A. Waldner , James P. McGee , Swagata R. Banerjee
- 申请人： David P. Erickson , Michele A. Waldner , James P. McGee , Swagata R. Banerjee
- 申请人地址： US MN St. Paul
- 专利权人： 3M Innovative Properties Company
- 当前专利权人： 3M Innovative Properties Company
- 当前专利权人地址： US MN St. Paul
- 主分类号： G08B13/14
- IPC分类号： G08B13/14
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.
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