Graphic figure reproduction for visually impaired students
    1.
    发明授权
    Graphic figure reproduction for visually impaired students 失效
    视觉图形学生的图形生成

    公开(公告)号:US3768180A

    公开(公告)日:1973-10-30

    申请号:US3768180D

    申请日:1972-02-09

    Applicant: SAAB SCANIA AB

    Inventor: ARRDAL C

    CPC classification number: G09B21/003 B43L13/022

    Abstract: Recordable electric signals are produced by signal generating means connected with a tracing stylus that is guided over a graphic figure by a sighted person. Such signals control horizontal movements of a carriage that carries a striker pin, moving the pin in correspondence with stylus movements. As the carriage moves, the pin repeatedly thrusts up against deformable sheet material to produce therein a succession of raised projections that depict the traced figure in a manner detectable with the fingers.

    Abstract translation: 可记录的电信号由信号发生装置产生,该信号产生装置与跟踪触针相连,导视人员由图形人物引导。 这样的信号控制承载撞针的滑架的水平运动,使针与触针运动相对应地移动。 当托架移动时,销重复地向上推动可变形片材,以在其中产生一系列凸起的凸起,其以可用手指检测的方式描绘所追踪的图形。

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