发明授权
- 专利标题： Identifying system of overlapped tag
- 专利标题（中）： 识别重叠标签系统
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申请号： US10222790申请日： 2002-08-19
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公开(公告)号： US06840440B2公开(公告)日： 2005-01-11
- 发明人: Gakuji Uozumi , Osamu Ishihara , Tomohiro Mori
- 申请人： Gakuji Uozumi , Osamu Ishihara , Tomohiro Mori
- 申请人地址： JP Tokyo
- 专利权人： Mitsubishi Materials Corporation
- 当前专利权人： Mitsubishi Materials Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP10-320153 19981111
- 主分类号： G06K7/00
- IPC分类号： G06K7/00 ; G06K19/07 ; G06K19/077 ; G06F17/00
摘要：
An identifying system for overlapped tags, wherein one of the tags, e.g., a tag to be appended to an article, has an antenna coil and a radio frequency identification device (RFID) connected to the antenna coil. Two or more resonance capacitors are connected in parallel to each other and in parallel to the antenna coil and two or more switches electrically connect the two or more resonance capacitors to the antenna coil and to the RFID. A control circuit is configured to operate on-off controls of the two or more switches to change a resonance frequency of the identifying system.
公开/授权文献
- US20030057279A1 Identifying system of overlapped tag 公开/授权日：2003-03-27
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