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    • 62. 发明授权
    • Digital display device
    • 数字显示设备
    • US3781851A
    • 1973-12-25
    • US3781851D
    • 1972-06-22
    • IBM
    • ALEXANDER A
    • G06F11/32G09G3/30G06G7/04
    • G06F11/325G09G3/30G09G2300/08G09G2300/088
    • A digital display device includes an upper and lower row of electroluminescent display elements each controlled by a silicon controlled rectifier gated by the output of a stage of a data buffer for applying an alternating potential to each display element; a blanking control circuit for controlling the amplitude of the alternating potential applied to the display elements; an image control switch for selectively operating the display device to be unblanked, to be blanked or to be automatically blanked except when input lines are energized; and a display time extension circuit for allowing a display device to be operational for a period of time after the input lines are de-energized.
    • 数字显示装置包括上和下排的电致发光显示元件,每个电致发光显示元件由可控硅整流器控制,该可控硅整流器由数据缓冲器级的输出端控制,用于向每个显示元件施加交替电位; 用于控制施加到显示元件的交变电位的幅度的消隐控制电路; 图像控制开关,用于选择性地将显示装置操作为未被打开,被消隐或被自动消隐,除非输入线被通电; 以及显示时间延长电路,用于允许显示装置在输入线断电之后的一段时间内可操作。
    • 63. 发明授权
    • Read out system
    • 读出系统
    • US3633012A
    • 1972-01-04
    • US3633012D
    • 1969-10-29
    • SHERWOOD MEDICAL IND INC
    • WILHELMSON JACK LMICHAELS BRUCE E
    • G01N21/27G06G7/04
    • G01N21/272
    • A servomechanism system coupled to a spectrophotometer provides direct and simultaneous read out of the transmittance, optical density, concentration and rate of chemical reaction of a solution being analyzed. To calculate rate of chemical reaction, a circuit differentiates an optical density signal modified by a circuit which selectably limits the maximum rate of change of the signal. Circuits associated with the servomechanism control as adjustable and dynamic deadband compensation network, and a detent or index means associated with the read out device to produce discrete readings from a continuously varying input.
    • 耦合到分光光度计的伺服机构系统可以直接和同时读出所分析溶液的透光率,光密度,浓度和化学反应速率。 为了计算化学反应速率,电路使由电路修改的光密度信号区分出可选择地限制信号的最大变化率。 与伺服机构控制相关联的电路作为可调和动态死区补偿网络,以及与读出装置相关联的制动器或索引装置,以从连续变化的输入产生离散读数。