发明授权
- 专利标题： Positioning with RF-ID transponders
- 专利标题（中）： 使用RF-ID转发器定位
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申请号： US667297申请日： 1996-06-20
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公开(公告)号： US5621411A公开(公告)日： 1997-04-15
- 发明人: Andreas Hagl , Horst Mollik , Kostantin Aslanidis
- 申请人： Andreas Hagl , Horst Mollik , Kostantin Aslanidis
- 申请人地址： TX Dallas
- 专利权人： Texas Instruments Incorporated
- 当前专利权人： Texas Instruments Incorporated
- 当前专利权人地址： TX Dallas
- 主分类号： G01S13/06
- IPC分类号： G01S13/06 ; G01S11/06 ; G01S13/74 ; G01S13/87 ; H04B1/59 ; G01S13/75 ; G01S13/84
摘要：
A method of determining the exact location of a transponder with respect to a reader antenna, with no additional components to the existing system required, is disclosed. An existing pin of the reader IC, the RSTP pin, provides an analog fieldstrength signal from which the distance to the reader antenna is deduced via known in the art signal processing methods. A grid or even an exact position location along a route is also achievable with initial set-up of at least two transponders a predetermined distance apart and a reader antenna.
公开/授权文献
- US5161003A Compatible television system with companding auxiliary signal 公开/授权日：1992-11-03
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