发明授权
US5559504A Surface shape sensor, identification device using this sensor, and
protected system using this device
失效
表面形状传感器，使用该传感器的识别装置，以及使用该装置的受保护系统
- 专利标题： Surface shape sensor, identification device using this sensor, and protected system using this device
- 专利标题（中）： 表面形状传感器，使用该传感器的识别装置，以及使用该装置的受保护系统
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申请号： US178902申请日： 1994-01-07
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公开(公告)号： US5559504A公开(公告)日： 1996-09-24
- 发明人: Kazuhiro Itsumi , Masayuki Shiratori , Tatsuro Beppu , Shiroh Saitoh , Yujiro Naruse , Shigeki Obata , Shunji Shirouzu
- 申请人： Kazuhiro Itsumi , Masayuki Shiratori , Tatsuro Beppu , Shiroh Saitoh , Yujiro Naruse , Shigeki Obata , Shunji Shirouzu
- 申请人地址： JPX Kawasaki
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX5-002059 19930108; JPX5-256401 19930920
- 主分类号： G01B7/287
- IPC分类号： G01B7/287 ; G01B7/32 ; G01L1/20 ; G06F3/033 ; G06F3/041 ; G06K9/00 ; G07C9/00 ; H04Q1/00
摘要：
A device for performing identification by sensing the fingerprint of a finger includes an input unit. The input unit is constituted by a plurality of linear contact electrodes formed on a substrate, and a pressure-sensitive sheet formed on the linear contact electrodes and a resistance thereof changes in accordance with a pressure applied thereto. When the finger touches the surface of the pressure-sensitive sheet, a change in resistance is caused between the electrodes, and this change is converted to data of a one-dimensional electrical signal distribution. The obtained data is compared with registered data, thereby performing identification. The time required for signal processing necessary in the identification device can be decreased.
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