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    • 7. 发明授权
    • Analogue alarm electronic timepiece
    • 模拟报警电子表
    • US4358840A
    • 1982-11-09
    • US124255
    • 1980-02-25
    • Kenichi OnoShuji OtawaMasaharu Shida
    • Kenichi OnoShuji OtawaMasaharu Shida
    • G04C3/00G04C3/14G04C9/08G04G13/02G04C21/16G04C23/14
    • G04G13/025G04C3/14
    • An analogue alarm electronic timepiece has electronic circuitry for controlling the drive of the time-indicating hands by a reversible stepping motor to selectively position the hands at desired alarm time and display time settings. Externally operable switches control the operation of the electronic circuitry and enable re-positioning of the hands by the motor to the previously set alarm time so that the user of the timepiece may confirm the alarm time setting. The electronic circuit includes a first settable memory means for storing the time difference between the alarm time and the present time, and a second settable memory means for storing the time difference between the present time and the display time. First means are provided for detecting coincidences between the alarm time and the present time. Second means are provided for detecting coincidence between the present time and the display time.
    • 模拟警报电子表具有电子电路,用于通过可逆步进电机来控制指示指针的驱动,以选择性地将手定位在所需的警报时间和显示时间设置。 外部可操作的开关控制电子电路的操作,并且使电动机的手能够重新定位到先前设置的报警时间,以便钟表的使用者可以确认报警时间设置。 电子电路包括用于存储报警时间和当前时间之间的时间差的第一可设置存储装置,以及用于存储当前时间和显示时间之间的时间差的第二可设置存储装置。 提供了用于检测报警时间和当前时间之间的巧合的第一装置。 提供了用于检测当前时间和显示时间之间的一致性的第二装置。
    • 10. 发明授权
    • Electronic watch
    • 电子手表
    • US4274150A
    • 1981-06-16
    • US919611
    • 1978-06-27
    • Masataka IkenishiJoichi MiyazakiShozo KushidaHiromasa NakanishiMakoto UedaMasaharu Shida
    • Masataka IkenishiJoichi MiyazakiShozo KushidaHiromasa NakanishiMakoto UedaMasaharu Shida
    • G04C3/14G04C9/00G04C9/04G04C9/08H02P8/02G04B17/12
    • G04C3/14G04C3/143G04C9/00G04C9/04
    • An electronic timepiece having a stepping motor and a drive circuit responsive to a control signal for applying electrical drive pulses having polarities determined by the control signal for rotating the rotor of the stepping motor. The control circuit normally operates in a mode for applying a control signal to the drive circuit effective to control the drive circuit to apply alternate polarity electrical drive pulses to rotate the stepping motor rotor in a normal direction. Resetting circuitry is operable for correcting the time kept by the timepiece. A detecting circuit detects whether the stepping motor rotor is in a position to be rotated by a forthcoming drive pulse after resetting. If the stepping motor rotor is not in a position for rotation a detection circuit signal is applied to the control circuit so that the control signal controls the drive circuit to apply an electrical pulse effective to rotate the stepping motor rotor after resetting. Consequently, after resetting the immediately forthcoming drive pulse will have a polarity effective to rotate the stepping motor rotor and no time will be lost.
    • 一种具有步进电机和驱动电路的电子表,其响应于控制信号,用于施加具有由控制信号确定的极性的电驱动脉冲,以旋转步进电机的转子。 控制电路通常以向驱动电路施加控制信号的方式工作,该控制信号有效地控制驱动电路以施加极性电驱动脉冲以使步进电动机转子沿法向旋转。 复位电路可操作用于校正由钟表保持的时间。 检测电路检测步进电动机转子是否处于在复位后由即将到来的驱动脉冲旋转的位置。 如果步进电动机转子不在旋转位置,则检测电路信号被施加到控制电路,使得控制信号控制驱动电路以在复位之后施加有效地旋转步进电动机转子的电脉冲。 因此,在复位之后,即将到来的驱动脉冲将具有有效旋转步进电动机转子的极性,并且不会丢失时间。