发明授权
US07007854B2 Method of checking authenticity of sheet with built-in electronic circuit chip
失效
使用内置电子电路芯片检查纸张真实性的方法
- 专利标题： Method of checking authenticity of sheet with built-in electronic circuit chip
- 专利标题（中）： 使用内置电子电路芯片检查纸张真实性的方法
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申请号： US10673451申请日： 2003-09-30
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公开(公告)号： US07007854B2公开(公告)日： 2006-03-07
- 发明人: Chikashi Okamoto , Kazuo Takaragi , Kazutaka Tsuji , Mitsuo Usami , Chizuko Yasunobu , Asahiko Isobe , Yasuhiro Tsunemi , Hiroyuki Yagi
- 申请人： Chikashi Okamoto , Kazuo Takaragi , Kazutaka Tsuji , Mitsuo Usami , Chizuko Yasunobu , Asahiko Isobe , Yasuhiro Tsunemi , Hiroyuki Yagi
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： Hitachi, Ltd.,Hitachi Research Institute
- 当前专利权人： Hitachi, Ltd.,Hitachi Research Institute
- 当前专利权人地址： JP Tokyo JP Tokyo
- 代理机构： Mattingly, Stanger, Malur & Brundidge, PC
- 优先权： JP10-346738 19981207
- 主分类号： G06K19/06
- IPC分类号： G06K19/06
摘要：
A method of checking sheets as to forgery thereof, the sheet being provided with an electronic circuit chip from which information can be read cut or written and having visible information. The method includes a step of encrypting the visible information of the sheet and storing the encrypted visible information in the electronic circuit chip, and a step of determining discriminatively the authenticity of the sheet by comparing the visible information of the sheet with the information stored in the electronic circuit chip.
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