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1. 发明授权

US5142139A Apparatus for treating image information of printed material and discriminating same 失效
标题翻译：用于处理印刷材料的图像信息和辨别图像信息的装置
公开(公告)号：US5142139A
公开(公告)日：1992-08-25
申请号：US656490
申请日：1991-02-19
申请人： Makoto Hayashi , Shizunori Kaneko , Mitsuhiko Iida , Mutsumi Naniwa , Seiichi Tsuchiya , Kimio Suzuki
发明人： Makoto Hayashi , Shizunori Kaneko , Mitsuhiko Iida , Mutsumi Naniwa , Seiichi Tsuchiya , Kimio Suzuki
IPC分类号： B41F33/14 , B41F33/00 , B41F33/04 , G01N21/89 , G01N21/892
CPC分类号： B41F33/00
摘要： A printing machine such as a rotary offset press includes a printed material monitoring apparatus comprising sensor units for detecting light reflected from a number of unit pixel domains which are divided in a direction perpendicular to a direction in which a print surface of a printed material flows, optical fiber units for transmitting light reflected from the unit pixel domains to the sensor units and a signal processing unit for processing signals transmitted from the sensor units. The sensor units comprise detection sensors each being equipped with a plurality of light reception elements corresponding to the unit pixel domains respectively. The light reception elements are arranged in a plurality of rows of a fixed amount in a direction in which the print surface of the printed material flows to form groups of fixed amount of rows in which the light reception elements are arranged. The signal processing unit comprises analog multiplexer for multiplexing analog information detected by each of the light reception elements in the groups in which the rows of the light reception elements are arranged and digital multiplexer for further digitizing and multiplexing the multiplexed analog information transmitted from each of the groups of the light reception elements.
摘要翻译：诸如旋转胶版印刷机的印刷机包括印刷材料监测装置，其包括用于检测从与印刷材料的印刷表面流动的方向垂直的方向分割的多个单位像素畴反射的光的传感器单元，用于将从单位像素域反射的光传送到传感器单元的光纤单元和用于处理从传感器单元发送的信号的信号处理单元。传感器单元包括检测传感器，每个检测传感器分别配备有对应于单位像素域的多个光接收元件。光接收元件在打印材料的印刷表面流动的方向上以固定数量的多行排列，以形成其中布置有光接收元件的固定行数的组。信号处理单元包括模拟多路复用器，用于复用由光接收元件的行排列的组中的每个光接收元件检测的模拟信息，以及数字多路复用器，用于进一步数字化和复用从每个一组光接收元件。

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