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公开(公告)号：US4399553A
公开(公告)日：1983-08-16
申请号：US221107
申请日：1980-12-29
申请人： Akira Toyama
发明人： Akira Toyama
CPC分类号： G06K9/186
摘要： A character reader recognition data extracting device for use in an optical character reader system for reading characters printed in magnetized ink. Characters printed in magnetized ink on a substrate are magnetized with a magnetic polarity opposite that of stray magnetic particles which may adhere to a conveying roll for the substrate. Signals produced at the output of the magnetic head due to the presence of the stray particles are discriminated from those produced in response to the characters due to the differences in magnetic polarity. A processing circuit is disclosed which operates upon the output signal from the magnetic head to provide digital signals representative of the sensed characters. This circuit includes a sample-and-hold circuit, an offset circuit and comparators which compare the output of the sample-and-hold circuit shifted by the offset circuit with the unshifted signal at a prior sampling period.
摘要翻译： 一种用于读取在磁化墨水中印刷的字符的光学字符读取器系统中的字符读取器识别数据提取装置。 印刷在基板上的磁化墨水中的字符被磁化，其磁极性与杂散磁性颗粒相反，磁性颗粒可粘附到用于基底的输送辊。 由于杂散颗粒的存在而在磁头的输出处产生的信号与由于磁极性差异而响应于字符而产生的信号被区分开。 公开了一种处理电路，其操作于来自磁头的输出信号以提供表示感测字符的数字信号。 该电路包括采样保持电路，偏移电路和比较器，其将在偏移电路偏移的采样和保持电路的输出与先前采样周期的未移位信号进行比较。
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公开(公告)号：US4231072A
公开(公告)日：1980-10-28
申请号：US889802
申请日：1978-03-24
申请人： Akira Toyama
发明人： Akira Toyama
CPC分类号： G06K13/08
摘要： The present invention relates to a record/playback device for magnetic recording of manual drive type in which information can be exchanged while a magnetic card is manually being driven. In the device according to the present invention a write-only magnetic head and a read-only magnetic head are provided in a magnetic card path formed within the device. Writing of information into the magnetic card is done by said write-only head, while reading of information out of the magnetic card is done by said read-only head. Of these two magnetic heads, the one for write-in is located at a specific height above the fixed card guide formed at the deepest end of the magnetic card path, while the one for read-out is located at a greater height than the one for write-in. Between these two heads there is provided a movable card guide which is free to move along the magnetic card path. When the movable card guide goes into the magnetic card path, the magnetic card guide surface of the movable card guide runs parallel to the magnetic card guide surface of the fixed card guide. Thus when a magnetic card runs along the fixed card guide, information is written into this magnetic card. When it runs along the movable card guide, information is read out of it.
摘要翻译： 本发明涉及一种用于在手动驱动磁卡的情况下交换信息的手动驱动型磁记录装置。 在根据本发明的装置中，只写磁头和只读磁头设置在装置内形成的磁卡路径中。 将信息写入磁卡由所述只写头完成，而从磁卡读出信息由所述只读磁头完成。 在这两个磁头中，用于写入的磁头位于形成在磁卡路径的最深端的固定卡引导件上方的特定高度，而用于读出的磁头位于比该卡的更大高度 用于写入。 在这两个头之间，设置有一个可移动的卡引导件，可自由地沿着磁卡路径移动。 当可动卡引导件进入磁卡路径时，可移动卡引导件的磁卡引导表面平行于固定卡引导件的磁卡引导表面延伸。 因此，当磁卡沿着固定卡引导件运行时，信息被写入该磁卡。 当它沿着可移动卡片指南运行时，信息被读出。
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公开(公告)号：US3989810A
公开(公告)日：1976-11-02
申请号：US552763
申请日：1975-02-24
申请人： Akira Toyama , Koji Ishizaki
发明人： Akira Toyama , Koji Ishizaki
CPC分类号： C01B17/05 , B01D53/523 , C10K1/14 , C10K1/20
摘要： A process for the removal and conversion into sulfur of hydrogen sulfide in a gaseous or liquid material which comprises essentially treating the said material with an oxidative lignin prepared by treating lignins with oxidizing agents, nitrating agents and/or demethylating agents and, if desired, introducing hydrophilic groups into the resultant product. The lignins include protolignin, isolated lignins and other denatured lignins. The process is advantageous essentially in that hydrogen sulfide can be removed economically and converted completely into sulfur, and that the desulfurization agents, i.e. the oxidative lignins, are non-toxic and non-corrosive.
摘要翻译： 一种在气态或液态物质中去除和转化成硫化硫的方法，其包括用氧化木质素基本上处理所述材料，所述氧化木质素通过用氧化剂，硝化剂和/或去甲基化剂处理木质素和如果需要引入 将亲水基团转化成所得产物。 木质素包括原木质素，分离的木质素和其他变性木质素。 该方法基本上是有利的，其中硫化氢可以经济地除去并完全转化成硫，脱硫剂即氧化木质素是无毒和无腐蚀性的。
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