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193 条记录 (耗时 0.012 秒)

    Electronic wristwatch
    51.
    发明授权
    Electronic wristwatch 失效
    电子手表

    公开(公告)号：US4236237A

    公开(公告)日：1980-11-25

    申请号：US928797

    申请日：1978-07-28

    申请人： Singo Ichikawa

    发明人： Singo Ichikawa

    IPC分类号： G04C10/04 ,  G04B9/00 ,  G04C9/00 ,  G04C23/00

    CPC分类号： G04C10/04

    摘要： In an electronic wristwatch having a digital type of photo-electric display and powered by a battery, a battery life warning system is provided whereby the battery voltage is checked at periodic intervals and the photoelectric display is caused to flash on and off repetitively to indicate the approach of the end of the battery life. The timing of sampling pulses applied to a voltage detection circuit is controlled such that a temporary drop in battery voltage does not cause a display warning signal to be generated.

    摘要翻译： 在具有数字式光电显示器并由电池供电的电子手表中，提供电池寿命警报系统，其中以周期性间隔检查电池电压，并且使光电显示器重复地开启和关闭以指示 方法结束电池的使用寿命。 控制施加到电压检测电路的采样脉冲的定时，使得电池电压的暂时下降不会导致产生显示警告信号。

    Measuring and indicating arrangement
    52.
    发明授权
    Measuring and indicating arrangement 失效
    测量和指示安排

    公开(公告)号：US3665703A

    公开(公告)日：1972-05-30

    申请号：US3665703D

    申请日：1971-03-09

    申请人： BRAUN AG

    发明人： COBARG CLAUS CHRISTIAN

    IPC分类号： G01R31/36 ,  G04B9/00 ,  G04C10/04 ,  G04B47/06 ,  G04C3/00

    CPC分类号： G01R31/362 ,  G01R31/3627 ,  G01R31/3682 ,  G04B9/00 ,  G04C10/04 ,  Y10S320/21

    摘要： An arrangement for measuring the voltage of a battery to determine the state of charge of the battery when used to operate electrical timepieces. A pair of momentary contact switches are actuated by the hours wheel of the clock mechanism on the one hand, and by either the minutes wheel or the seconds wheel of the clock mechanism on the other hand, and when actuated in coincidence complete an electrical circuit which connects the battery with a voltage measuring instrument. An indicating device associated with the instrument indicates the measurement taken and is held in place by a holding device, after the measurement has been completed. The indicating device becomes released and permitted to turn to its initial position prior to the instant when a subsequent measurement is to be taken.

    Reserve power indicating system in a timepiece
    53.
    发明授权
    Reserve power indicating system in a timepiece 失效
    在时钟上预留电源指示系统

    公开(公告)号：US3222860A

    公开(公告)日：1965-12-14

    申请号：US37510464

    申请日：1964-06-15

    申请人： OMEGA BRANDT & FRERES SA LOUIS

    发明人： GASTON RAVAL

    IPC分类号： G04B9/00 ,  G04C3/04

    CPC分类号： G04B9/00 ,  G04C3/04

    摘要： 1,056,696. Watches. OMEGA, LOUIS BRANDT & FRERE S. A. June 15, 1964 [July 20, 1963], No.24706/64. Heading G3T. A battery reserve power indicating device in an electric timepiece having a balance wheel, comprises a mark 4 on the balance wheel 1, Fig. 1 (not shown), and a window 3 in a dial 2. All the time the battery contains sufficient power to guarantee that the timepiece maintains the correct time the mark 4 will appear at the window 3 during oscillation of the balance wheel, but when the amplitude of the wheel falls due to a voltage drop the mark 4 will no longer appear at the window and an indication will be given that insufficient power is available to drive the timepiece. The window 3 may be of any shape and may be replaced by a mark on a larger window. The position of the mark may be adjustable. A window may be provided at each amplitude limit of the wheel 1.