发明授权
US07232068B2 Non-contact IC card reader/writer device, non-contact IC card, input device, and method of calculating location of non-contact IC card
有权
非接触式IC卡读写器装置，非接触式IC卡，输入装置以及计算非接触式IC卡位置的方法
- 专利标题： Non-contact IC card reader/writer device, non-contact IC card, input device, and method of calculating location of non-contact IC card
- 专利标题（中）： 非接触式IC卡读写器装置，非接触式IC卡，输入装置以及计算非接触式IC卡位置的方法
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申请号： US10625772申请日： 2003-07-24
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公开(公告)号： US07232068B2公开(公告)日： 2007-06-19
- 发明人: Takuya Uchiyama , Satoshi Sakurai , Nobuo Yatsu , Norio Endo
- 申请人： Takuya Uchiyama , Satoshi Sakurai , Nobuo Yatsu , Norio Endo
- 申请人地址： JP Tokyo
- 专利权人： Fujitsu Component Limited
- 当前专利权人： Fujitsu Component Limited
- 当前专利权人地址： JP Tokyo
- 代理机构： Staas & Halsey LLP
- 优先权： JP2002-299171 20021011
- 主分类号： G06K7/08
- IPC分类号： G06K7/08 ; G06K5/00 ; G06K19/00
摘要：
A non-contact IC card reader/writer device includes antennas that perform carrier wave transmission and reception with a non-contact IC card, an A/D converter that detects the voltage level of each carrier wave received from the non-contact IC card through the antennas, and a control unit that calculates the location of the non-contact IC card from the voltage levels detected by the A/D converter.
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