发明申请
- 专利标题： Method and Reader to Conduct a Label Query in a Radio Frequency Identification System
- 专利标题（中）： 在射频识别系统中进行标签查询的方法和读者
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申请号： US12675825申请日： 2008-07-22
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公开(公告)号： US20100207731A1公开(公告)日： 2010-08-19
- 发明人: Dieter Horst , Dan Yu , Yong Yuan , Liang Zhang
- 申请人： Dieter Horst , Dan Yu , Yong Yuan , Liang Zhang
- 申请人地址： DE München
- 专利权人： Siemens AGü
- 当前专利权人： Siemens AGü
- 当前专利权人地址： DE München
- 优先权： CN200710148372.9 20070831
- 国际申请： PCT/EP2008/059582 WO 20080722
- 主分类号： H04Q5/22
- IPC分类号： H04Q5/22
摘要：
A method for conducting a passive label query in a radio frequency identification system, wherein a query process conducted by a reader for a group of passive labels comprises a first query and a subsequent query. The link frequency used by a reverse link from the passive label to the reader in the subsequent query is smaller than that the link frequency used by the reverse link in the first query. The method improves the reverse link performance of a passive label radio frequency identification system, and increased the reading success rate of the passive label. A reader is also provided to implement the method.
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