公开(公告)号：US07586592B2

公开(公告)日：2009-09-08

申请号：US11667845

申请日：2005-11-11

申请人： Eiji Itako ,  Yasuyuki Kimura ,  Futoshi Houjo ,  Satoru Tsurumaki ,  Seiji Takamatsu

发明人： Eiji Itako ,  Yasuyuki Kimura ,  Futoshi Houjo ,  Satoru Tsurumaki ,  Seiji Takamatsu

IPC分类号： G06K9/74

CPC分类号： G07D7/121 ,  G01N21/255 ,  G01N21/55 ,  G01N21/86 ,  G07D7/1205

摘要： A sheet recognizing device and method for precisely checking the authentication of a sheet by performing recognition of color and watermark of a sheet and detecting the subtle characteristic of a hue ink printed on one side of the sheet. The sheet recognizing device comprises first and third light sources for projecting light at predetermined angles to a sheet, a second light source for projecting light from a vertical direction, first and second light-receiving elements for receiving light at angles at which the hues of the hue ink printed area originated from the lights from the first and second light sources are different, a third light-receiving element opposed to the second light source with the sheet interposed therebetween, first computing means for computing a first color tone depending on the hue ink printed area on the basis of the light-reception outputs from the first light-receiving element due to the light from the first light source and from the second light-receiving element due to the light from the third light source, second computing means for computing a second color tone independent of the hue ink printed area on the basis of the light-reception outputs from the first light-receiving element due to the light from the second light source and from the third light-receiving element due to the light from the third light source, whereby the sheet is checked on the basis of the computation results by the first and second computing means.

摘要翻译： 一种纸张识别装置和方法，用于通过识别纸张的颜色和水印以及检测打印在纸张的一面上的色调油墨的微妙特性来精确地检查纸张的认证。 片材识别装置包括用于将预定角度的光投射到片材的第一和第三光源，用于从垂直方向投射光的第二光源，用于以角度接收光的第一和第二光接收元件， 来自第一和第二光源的光的色相墨水印刷区域是不同的，与第二光源相对的第三光接收元件，其间插入片材;第一计算装置，用于根据色相墨水计算第一色调 基于来自第一光源的光和来自第三光源的光的来自第二受光元件的来自第一光接收元件的光接收输出的打印区域，用于计算的第二计算装置 基于来自第一光接收元件的光接收输出，第二色调与色调墨水打印区域无关，由于 由于来自第三光源的光而来自第二光源和第三光接收元件的光，由此基于第一和第二计算装置的计算结果来检查片材。

公开(公告)号：US20080137072A1

公开(公告)日：2008-06-12

申请号：US11667845

申请日：2005-11-11

申请人： Eiji Itako ,  Yasuyuki Kimura ,  Futoshi Houjo ,  Satoru Tsurumaki ,  Seiji Takamatsu

发明人： Eiji Itako ,  Yasuyuki Kimura ,  Futoshi Houjo ,  Satoru Tsurumaki ,  Seiji Takamatsu

IPC分类号： G01N21/00

CPC分类号： G07D7/121 ,  G01N21/255 ,  G01N21/55 ,  G01N21/86 ,  G07D7/1205

摘要： A sheet recognizing device and method for precisely checking the authentication of a sheet by performing recognition of color and watermark of a sheet and detecting the subtle characteristic of a hue ink printed on one side of the sheet. The predetermined angles to a sheet, a second light source for projecting light from a vertical direction, first and second light-receiving elements for receiving light at angles at which the hues of the hue ink printed area originated from the lights from the first and second light sources are different, a third light-receiving element opposed to the second light source with the sheet interposed therebetween, first computing means for computing a first color tone depending on the hue ink printed area on the basis of the light-reception outputs from the first light-receiving element due to the light from the first light source and from the second light-receiving element due to the light from the third light source, second computing means for computing a second color tone independent of the hue ink printed area on the basis of the light-reception outputs from the first light-receiving element due to the light from the second light source and from the third light-receiving element due to the light from the third light source, whereby the sheet is checked on the basis of the computation results by the first and second computing means.

摘要翻译： 一种纸张识别装置和方法，用于通过识别纸张的颜色和水印以及检测打印在纸张的一面上的色调油墨的微妙特性来精确地检查纸张的认证。 与片材的预定角度，用于从垂直方向投射光的第二光源，用于以从第一和第二部分的光源起的色调墨水印刷区域的色调的角度接收光的第一和第二光接收元件 光源不同，与第二光源相对的第三光接收元件，其间插入片材;第一计算装置，用于根据色调墨水打印区域根据来自所述第二光源的光接收输出计算第一色调 由于来自第一光源的光和来自第二光接收元件的第一光接收元件由于来自第三光源的光而产生，第二计算装置用于计算独立于色调油墨印刷区域上的第二色调 由于来自第二光源的光和来自第三光接收元件的来自第一光接收元件的光接收输出的基础是由于 来自第三光源的光，由此基于第一和第二计算装置的计算结果检查片材。