Audio-visual teaching system
    3.
    发明授权
    Audio-visual teaching system 失效
    视听教学系统

    公开(公告)号:US4052798A

    公开(公告)日:1977-10-11

    申请号:US672970

    申请日:1976-04-02

    CPC分类号: G09B7/077

    摘要: A system for selectively supplying information including video information to operators, such as students, at plural stations, the information requiring responses, or answers, and the correctness of each operator's answer being displayed. A television monitor is provided at each station to display video picture information. In reply to a question, which may be displayed or audibly reproduced, a responding device is selectively operated by the operator. The video picture information displayed at each television monitor is stored in a main storage device in the form of video picture signals representing predetermined still video information. Selected ones of the video picture signals are supplied from the main storage device as a function of each response, or answer, by the operators. A buffer store having a plurality of video picture signals storage channels corresponding to the number of stations is coupled to the main storage device to receive the selected video picture signals and to transmit these received signals to particular ones of the stations. A control unit is coupled to the main storage device and to the buffer store for controlling the transmission of selected video picture signals from the main storage device to a particular video picture signal storage channel and for controlling the transmission of video picture signals from the storage channels in the buffer store to selected ones of the stations.In one embodiment, a video display of the correctness of the operator's answer is provided. It is one feature of this system to transmit new video information to each monitor in accordance with the pace, or progress, of each operator.

    摘要翻译: 一种系统,用于选择性地向运营商(例如学生,多个站)提供包括视频信息的信息,需要响应的信息或答案,以及正在显示的每个操作者的答案。 在每个电台提供电视监视器以显示视频图像信息。 在回答可以显示或可听见地再现的问题时,响应装置由操作者有选择地操作。 在每个电视监视器上显示的视频图像信息以表示预定的静止视频信息的视频图像信号的形式存储在主存储装置中。 所选择的视频图像信号作为每个响应的函数从主存储装置提供,或由操作者回答。 具有多个视频图像信号的缓冲存储器存储与站数相对应的存储信道被耦合到主存储设备以接收所选择的视频图像信号,并将这些接收到的信号发送到该站的特定站。 控制单元耦合到主存储设备和缓冲存储器,用于控制从主存储设备到特定视频图像信号存储通道的所选视频图像信号的传输,并用于控制来自存储通道的视频图像信号的传输 在缓冲存储器中选择一个站。