TIMEPIECE AND TIMEPIECE CONTROL METHOD
    11.
    发明申请

    公开(公告)号:US20200225621A1

    公开(公告)日:2020-07-16

    申请号:US16737391

    申请日:2020-01-08

    Inventor: Kosuke Yamamoto

    Abstract: A timepiece includes a determination unit configured to execute determination processing of determining whether a braking force that brakes a rotor is preferably large or small, the rotor being rotated in a normal rotation direction to rotate a pointer clockwise; and a detection control unit configured to cause execution of rotation detection processing of detecting rotation of the rotor based on a first induced voltage output to a predetermined terminal among the first terminal and the second terminal being connected to a coil configured to generate a magnetic flux to rotate the rotor in the normal rotation direction, the predetermined terminal being selected based on the determination by the determination unit.

    Timepiece, electronic device, and control method of timepiece

    公开(公告)号:US10539927B2

    公开(公告)日:2020-01-21

    申请号:US16135535

    申请日:2018-09-19

    Abstract: A timepiece includes a voltage detection unit that detects a voltage applied to a stepping motor for driving an indicating hand, and that outputs a voltage detection result, and a drive control unit that controls a rotor to perform reverse rotation by using a reverse rotation pulse including a first pulse whose polarity is the same as that of a normal rotation pulse for causing the rotor of the stepping motor to perform normal rotation, a second pulse whose polarity is reverse to that of the first pulse, and a third pulse whose polarity is reverse to that of the second pulse, and to control the rotor to perform the reverse rotation by using the third pulse having a pulse width set in accordance with the voltage detection result.

    STEPPING MOTOR, TIMEPIECE MOVEMENT, TIMEPIECE, AND MANUFACTURING METHOD OF STEPPING MOTOR
    13.
    发明申请
    STEPPING MOTOR, TIMEPIECE MOVEMENT, TIMEPIECE, AND MANUFACTURING METHOD OF STEPPING MOTOR 审中-公开
    步进电机,定时运动,定时电机和步进电机的制造方法

    公开(公告)号:US20160209812A1

    公开(公告)日:2016-07-21

    申请号:US14997714

    申请日:2016-01-18

    CPC classification number: H02K15/02 G04C3/14 H02K1/02 H02K1/04 H02K15/12 H02K37/16

    Abstract: There is provided a stepping motor including a stator that is integrally molded by using a Fe—Ni alloy plate through machining, that has a rotor accommodating through-hole, and in which a magnetic path is disposed around the rotor accommodating through-hole, a rotor that is rotatably arranged inside the rotor accommodating through-hole, and a coil that is disposed in the stator. A Cr-diffusion region having a molten-solidified portion of Cr is formed in a portion of the magnetic path.

    Abstract translation: 提供了一种步进电动机,其包括使用通过机械加工的Fe-Ni合金板整体模制的定子,该定子具有转子容纳通孔,并且其中磁路设置在转子容纳通孔周围, 可旋转地设置在转子容纳通孔内部的转子和设置在定子中的线圈。 具有熔融凝固部分Cr的Cr扩散区形成在磁路的一部分中。

    Analog timepiece and control method of analog timepiece

    公开(公告)号:US10520897B2

    公开(公告)日:2019-12-31

    申请号:US15412646

    申请日:2017-01-23

    Inventor: Kosuke Yamamoto

    Abstract: There is provided an analog timepiece including an hour hand, a minute hand, and a second hand which are rotated by a unit step operation of a stepping motor. The analog timepiece includes a rotor that rotates the hour hand, the minute hand, and the second hand, and that has a magnetic polarity, a stator that includes magnetic pole portions disposed around the rotor, coils that excite the magnetic pole portions, and a control unit that controls each unit step of the rotor in accordance with each pulse group by applying a pulse group including a rotary pulse for rotating the rotor and a braking pulse for braking rotation of the rotor, which is applied before the rotary pulse is applied, to the coil.

    Electronic timepiece and control method of electronic timepiece
    16.
    发明授权
    Electronic timepiece and control method of electronic timepiece 有权
    电子钟表及电子表的控制方法

    公开(公告)号:US09442465B2

    公开(公告)日:2016-09-13

    申请号:US14938968

    申请日:2015-11-12

    Abstract: An electronic timepiece includes a solar power source, a voltage stabilizer circuit that generates a constant voltage by using power supplied from the solar power source, and a control circuit that clocks the time by driving a rotating body at first hand operation speed and at second hand operation speed which is faster than the first hand operation speed. The control circuit selects a voltage of the solar power source so as to drive the rotating body in a case of the first hand operation speed, and selects at least any one voltage of the constant voltage and the voltage of the solar power source so as to drive the rotating body in a case of the second hand operation speed.

    Abstract translation: 电子钟表包括:太阳能电源,通过使用从太阳能电源供给的电力产生恒定电压的稳压电路;以及控制电路,其通过以第一手操作速度驱动旋转体和秒针来控制时间 操作速度比第一手操作速度快。 控制电路在第一手操作速度的情况下选择太阳能源的电压以驱动旋转体,并且选择太阳能源的恒定电压和电压的至少一个电压,以便 在二手操作速度的情况下驱动旋转体。

    Stepping motor control circuit, movement, and analogue electronic timepiece
    17.
    发明授权
    Stepping motor control circuit, movement, and analogue electronic timepiece 失效
    步进电机控制电路,机芯及模拟电子表

    公开(公告)号:US08721170B2

    公开(公告)日:2014-05-13

    申请号:US13713060

    申请日:2012-12-13

    CPC classification number: G04C3/143 G04B99/00

    Abstract: A rotation detection unit configured to detect the condition of rotation of a stepping motor on the basis of an induced signal generated in a drive coil of the stepping motor in a detection period in which the condition of rotation of the stepping motor is detected and a control unit configured to rotationally drive the stepping motor by supplying a drive signal to the drive coil of the stepping motor within the driving period in which the stepping motor is rotationally driven are provided. The driving period and part of the detection period are configured to overlap with each other in a first time interval, and the control unit stops supply of the drive signal to the drive coil of the stepping motor in the first time interval.

    Abstract translation: 一种旋转检测单元,被配置为在检测步进电动机的旋转条件的检测时段中,基于在步进电动机的驱动线圈中产生的感应信号来检测步进电动机的旋转状态, 通过在步进电动机旋转驱动的驱动期间内设置驱动步进电动机的驱动信号的单元,该驱动信号被提供给步进电动机的驱动线圈。 驱动期间和检测期间的一部分被配置为在第一时间间隔内彼此重叠,并且控制单元在第一时间间隔内停止向步进电机的驱动线圈供应驱动信号。

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