发明授权
- 专利标题： Method of identifying and authenticating a radio tag by a reader
- 专利标题（中）： 读者识别无线电标签的方法
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申请号： US13576586申请日： 2011-01-26
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公开(公告)号： US09332430B2公开(公告)日： 2016-05-03
- 发明人: Matthew Robshaw , Henri Gilbert
- 申请人： Matthew Robshaw , Henri Gilbert
- 申请人地址： FR Paris
- 专利权人： FRANCE TELECOM
- 当前专利权人： FRANCE TELECOM
- 当前专利权人地址： FR Paris
- 代理机构： Westman Champlin & Koehler, P.A.
- 代理商 David D. Brush
- 优先权： FR1050694 20100201
- 国际申请： PCT/FR2011/050146 WO 20110126
- 国际公布： WO2011/092426 WO 20110804
- 主分类号： G06K7/01
- IPC分类号： G06K7/01 ; G05B19/00 ; H04W12/06
摘要：
A method and apparatus are provided for identifying and authenticating a radio tag by a radio reader. The tag forms part of a set of tags in a radio range of the reader and has selected a time slot from a set of available time slots. The method includes: a step of the reader sending a query message during the selected time slot; and a step of the reader receiving a reply message from the tag that selected the time slot. The reply message includes a random value selected by the tag. The tag stores authentication coupons and the reply from the tag received by the reader during the time slot contains, as a random value selected by the tag, a value that is a function of one of the coupons.
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