Raster-scanned display devices
    2.
    发明授权
    Raster-scanned display devices 失效
    RASTER-SCANNED显示设备

    公开(公告)号:US3812491A

    公开(公告)日:1974-05-21

    申请号:US30109072

    申请日:1972-10-25

    发明人: BARRACLOUGH C BROWN J

    CPC分类号: G09G5/20

    摘要: A synthetic graphics generating system, using a C.R.T. scanned in a T.V. type raster. The video signal for each linescan is calculated digitally in real time, either during the linescan flyback periods, or during execution of the preceding linescan. The described system is used to generate a number of vectors, the calculations for which are performed on a time-shared basis by common circuitry. To prevent a stepped appearance, progressive increase and decrease in brightness is used, preferably using three discrete brightness levels.

    Coupling device between a digital computer and an analogically controlled installation
    3.
    发明授权
    Coupling device between a digital computer and an analogically controlled installation 失效
    数字计算机与模拟控制安装之间的耦合装置

    公开(公告)号:US3764827A

    公开(公告)日:1973-10-09

    申请号:US3764827D

    申请日:1972-04-18

    发明人: PECHEYRAN R FAUVET E

    CPC分类号: H04B10/802

    摘要: A coupling device for use between a digital computer supplying incremental control signals and a plurality of analog stations which are respectively controlled by analog control signals, said coupling device comprising, for each station, two photocouplings for receiving pulses representing the increasing variations and decreasing variations respectively, of said incremental control signals, and an integrator for receiving the outputs of said photocouplings to supply the corresponding analog quantities to the analog stations, the photocouplings being adapted to ensure a galvanic isolation between the analog stations themselves on the one hand and the analog stations in relation to the coupling on the other hand, while allowing a very short coupling occupation time.

    摘要翻译: 一种耦合装置,用于在提供增量控制信号的数字计算机和分别由模拟控制信号控制的多个模拟站之间使用,所述耦合装置包括用于每个站的两个光耦合,用于分别接收表示增加的变化和减小的变化的脉冲 的所述增量控制信号,以及积分器,用于接收所述光耦合器的输出以将相应的模拟量提供给模拟站,所述光耦合器适于确保模拟站本身与模拟站之间的电隔离 另一方面,相对于耦合,同时允许非常短的耦合占用时间。