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2. 发明授权

US3868681A Character input equipment 失效
标题翻译：字符输入设备
公开(公告)号：US3868681A
公开(公告)日：1975-02-25
申请号：US29098172
申请日：1972-09-21
申请人： NIPPON ELECTRIC CO
发明人： OHYAMA CHISHIO , TACHIBANA MAKOTO , TAKADA TAKESHI
IPC分类号： G06F3/033 , G06F3/046 , G06K9/16
CPC分类号： G06F3/046
摘要： Electronic hardware especially adapted for use in converting each one of a group of characters into binary digital information comprising a character matrix for visually identifying each selectable character. An electronic matrix positioned beneath the character matrix and comprised of perpendicularly aligned drive and sense line sets is pulsed in a predetermined sequential fashion to create current pulses in each of the current drive lines. A bar which is selectively positionable adjacent any one of the characters creates an inductive path between the drive and sense lines which intersect at the location of the desired character causing a detection circuit to indicate this condition and terminate the sequential stepping. The sense lines are provided with activating circuits for selectively coupling each of the sense lines to the detection means which halts the operations of the drive and sense line control circuits when the desired character has been detected. The outputs of the drive and sense line control circuits may then be converted into binary digital information representing any one of the selectable characters.
摘要翻译：特别适用于将一组字符中的每一个转换成二进制数字信息的电子硬件，包括用于视觉识别每个可选字符的字符矩阵。位于字符矩阵下面并由垂直对准的驱动和感测线组组成的电子矩阵以预定的顺序方式脉冲，以在每条电流驱动线中产生电流脉冲。可以相对于任何一个字符选择性地定位的条形件在驱动和检测线之间产生感应路径，该感应路径在所需字符的位置处相交，导致检测电路指示该条件并终止顺序步进。感测线设置有用于选择性地将每个感测线耦合到检测装置的激活电路，当检测到期望的字符时，该检测装置停止驱动和感测线控制电路的操作。然后可以将驱动和感测线路控制电路的输出转换成表示任意一个可选字符的二进制数字信息。

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