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1.发明授权Electric control system for magnetic sheet recording and reproducing apparatus for audiovisual instruction 失效用于视听指令的磁片记录和再现装置的电气控制系统
公开(公告)号：US4091427A
公开(公告)日：1978-05-23
申请号：US618898
申请日：1975-10-02
申请人： Masao Iwaoka , Yosuke Igeta , Toyochika Kiku , Fumio Kobayashi , Tatsuhiko Sugai
发明人： Masao Iwaoka , Yosuke Igeta , Toyochika Kiku , Fumio Kobayashi , Tatsuhiko Sugai
CPC分类号： G09B5/062 , G11B21/043 , G11B5/5526
摘要： Recording-reproducing apparatus utilizing as the recording medium a rectangular sheet of paper or the like having a spiral magnetic track on one surface and printed material on the opposite surface for audiovisual educational purposes. For electrically controlling the operation of the apparatus, switches for playback, recording, stop and backspacing operations are connected to a reversible drive motor via a control circuit comprising a relay with a plurality of relay contact sets. The control circuit includes means for automatically suspending the rotation of the drive motor in response to a stop signal generated when, during playback, the magnetic head reaches a specific zone or zones on the track.
摘要翻译： 记录再现装置利用在一个表面上具有螺旋磁迹的矩形纸或类似物作为记录介质，并且用于视听教育目的的相对表面上的印刷材料。 为了电控制设备的操作，用于回放，记录，停止和后退操作的开关经由包括具有多个继电器触点组的继电器的控制电路连接到可逆驱动电动机。 控制电路包括用于响应于在重放期间磁头到达轨道上的特定区域或区域时产生的停止信号来自动暂停驱动电动机的旋转的装置。
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公开(公告)号：US4020505A
公开(公告)日：1977-04-26
申请号：US624128
申请日：1975-10-20
申请人： Masao Iwaoka , Yosuke Igeta , Toyochika Kiku , Fumio Kobayashi , Tatsuhiko Sugai
发明人： Masao Iwaoka , Yosuke Igeta , Toyochika Kiku , Fumio Kobayashi , Tatsuhiko Sugai
CPC分类号： G11B21/043 , G09B5/062 , G11B17/0255 , G11B17/32 , G11B5/48
摘要： A teaching machine on which is replaceably mounted a rectangular sheet of paper or the like with a spiral magnetic track on one surface, which is directed downwardly, and with printed material on the other surface for visual presentation of the subject of audio information prerecorded on the track. A movable magnetic head under the sheet follows its track for playback or recording. To afford closer contact between head and sheet and hence to improve the playback quality, a hinged holder frame secures the sheet to the machine casing at its marginal edges only, and the head is spring biased into abutting contact with the yieldably supported sheet. The head itself is supported out of the perpendicular to the plane of the sheet so as to remain in intimate contact therewith throughout its travel along the complete track on the sheet.
摘要翻译： 一种教学机器，其上可替换地安装一个矩形的纸张等，其中一个表面上具有螺旋磁迹，其被向下指向，并且在另一个表面上用印刷材料可视地呈现预先记录在其上的音频信息的对象 跟踪。 片下的可移动磁头跟随其轨道进行播放或录制。 为了提供头部和片材之间的更接近的接触并且因此提高播放质量，铰接的支架框架仅将片材固定在机器壳体的边缘处，并且头部被弹簧偏置成与可屈服支撑的片材邻接接触。 头部本身被支撑在与片材平面垂直的位置上，以便沿其沿片材上的完整轨道整个行进时保持紧密接触。
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