发明公开
EP0702323A2 System and method for radio frequency tag group select
失效
Auswahlsystem und -verfahrenfüreine Gruppe von HF-Etiketten
- 专利标题： System and method for radio frequency tag group select
- 专利标题（中）： Auswahlsystem und -verfahrenfüreine Gruppe von HF-Etiketten
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申请号： EP95112672.1申请日： 1995-08-11
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公开(公告)号： EP0702323A2公开(公告)日： 1996-03-20
- 发明人: Chan, Shun Shing , Cesar, Christian Lenz , Cofino, Thomas Anthony , Goldman, Kenneth Alan , Greene, Sharon L. , Heinrich, Harley Kent , McAuliffe, Kevin Patrick
- 申请人： International Business Machines Corporation
- 申请人地址： Old Orchard Road Armonk, N.Y. 10504 US
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： Old Orchard Road Armonk, N.Y. 10504 US
- 代理机构： Schäfer, Wolfgang, Dipl.-Ing.
- 优先权： US303965 19940909
- 主分类号： G06K17/00
- IPC分类号： G06K17/00 ; G06K7/10
摘要：
A system and method is disclosed for selecting certain subgroups of radio frequency (RF) tags for querying, communicating, and/or identifying by a base station. The base station sends commands to a group tags within a RF field of the base station. The tags use control logic to determine whether or not they meet certain criteria sent out by the commands. This may cause the tags to change state which either prevents or allows a given tag to participate in an identification process. In this way, a given subgroup(s) of tags meeting certain criteria can be selected for querying, communicating, and/or identifying.
公开/授权文献
- EP0702323B1 System and method for radio frequency tag group select 公开/授权日：2003-05-02
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