STEPPING MOTOR CONTROL DEVICE, MOVEMENT, WATCH, AND STEPPING MOTOR CONTROL METHOD

    公开(公告)号:US20240313677A1

    公开(公告)日:2024-09-19

    申请号:US18599769

    申请日:2024-03-08

    IPC分类号: H02P8/40 G04C3/14

    CPC分类号: H02P8/40 G04C3/146

    摘要: Provided is a stepping motor control device that prevents a terminal voltage of a battery from decreasing even when a plurality of motors are driven simultaneously at a high speed. The stepping motor control device includes: a control unit configured to control a driving unit that drives a plurality of motors including a first motor driven at a prescribed driving cycle, and a second motor driven at a driving cycle that is the same as or an integral multiple of the driving cycle of the first motor to drive the motors by outputting a driving pulse; and a storage unit configured to store a width of the first driving pulse and a width of the second driving pulse. When a sum of a pulse width of the first driving pulse and a pulse width of the second driving pulse is longer than the driving cycle of the first motor, in the driving cycle of the first motor, a part of the first driving pulse and at least a part of the second driving pulse are simultaneously output, and a pause period is provided, in which neither the first driving pulse nor the second driving pulse is output after the first driving pulse and the second driving pulse are output and before a start timing of a next driving cycle of the first motor.

    Electrical pulse generator harvesting body movement energy

    公开(公告)号:US11988992B2

    公开(公告)日:2024-05-21

    申请号:US16600046

    申请日:2019-10-11

    发明人: Xudong Wang Jun Li

    IPC分类号: G04B1/02 G04C1/08 G04C10/00

    CPC分类号: G04B1/02 G04C1/082 G04C10/00

    摘要: An energy harvesting system for use with the human body may use an eccentrically mounted weight winding a mainspring that drives a mechanical clock mechanism. The mechanical clock mechanism in turn may produce pulses of electricity, for example, through periodic flexing of a piezoelectric or triboelectric material during the regular motion of the mechanical timing mechanism. By remaining in a mechanical rather than electrical domain, improved simplicity and efficiency may be obtained in the generation of regularly spaced uniform pulses.

    Watch
    7.
    发明授权
    Watch 有权

    公开(公告)号:US11921467B2

    公开(公告)日:2024-03-05

    申请号:US17161715

    申请日:2021-01-29

    IPC分类号: G04C3/08 G04C3/00

    CPC分类号: G04C3/08 G04C3/008

    摘要: A watch includes a crystal oscillator, a controller including an oscillation circuit configured to cause the crystal oscillator to oscillate, wiring that couples the crystal oscillator with the controller, and the crystal oscillator, a storage container that stores the crystal oscillator, the wiring, and the controller, and an outer case that stores the storage container, in which the crystal oscillator and the controller are placed side by side inside the storage container in plan view.

    WATCH WITH LIGHT SENSOR AND ANTENNA
    8.
    发明公开

    公开(公告)号:US20240069495A1

    公开(公告)日:2024-02-29

    申请号:US18356561

    申请日:2023-07-21

    IPC分类号: G04C10/02 G04B19/12 H01Q1/27

    CPC分类号: G04C10/02 G04B19/12 H01Q1/27

    摘要: A watch incorporating an assembly (70) including a light sensor (72), including a photovoltaic cell, a negative electrode (78) and a positive electrode (79). The assembly has a first portion (52A), in which the electrodes are arranged, and a second portion (54A) which is not included in the first portion and which comprises or covers an antenna (80). The semiconductor material wafer extends into the first and second portions, and all the electrodes are arranged below the semiconductor material wafer. Preferably, this semiconductor material wafer or layer has no conductive doping in the second portion. The wafer, or layer, determines, together with additional layers provided thereon, the homogeneous colour and uniform appearance of the assembly from the side of its upper surface. Also, a dial formed by such an assembly.

    Watch
    9.
    发明授权
    Watch 有权

    公开(公告)号:US11868091B2

    公开(公告)日:2024-01-09

    申请号:US17158087

    申请日:2021-01-26

    发明人: Eiichi Hiraya

    摘要: A watch includes a power reserve hand configured to be visually recognizable from a watch rear side, an oscillating weight including a weight, a transmission wheel configured to rotate a ratchet wheel, a pawl lever configured to engage with the transmission wheel, an eccentric wheel including an eccentric shaft member to which the pawl lever is attached and an eccentric toothed gear, a train wheel bridge provided between the pawl lever and the oscillating weight, and a seconds wheel and pinion including a seconds hand shaft. The eccentric shaft member and the seconds hand shaft are supported by the train wheel bridge. The power reserve hand is disposed in a position that does not overlap the weight in plan view, and is disposed in a position that overlaps the train wheel bridge in side view orthogonal to the seconds hand shaft.

    DISPLAY APPARATUS AND WATCH
    10.
    发明公开

    公开(公告)号:US20240004349A1

    公开(公告)日:2024-01-04

    申请号:US18468260

    申请日:2023-09-15

    发明人: Eiji YAMAKAWA

    IPC分类号: G04C10/02 H02S40/22 G04G17/04

    摘要: A display apparatus includes a protecting plate formed of a material which transmits light, light transmitting type solar panel which is positioned below the protecting plate, a display below the light transmitting type solar panel, which is provided in contact with the light transmitting type solar panel, and which includes a display region which can be viewed from outside. An air layer which is positioned between the protecting plate and the light transmitting type solar panel, and at least one light reflection prevention layer on at least one of a first surface of the protecting plate facing the air layer and a second surface of the light transmitting type solar panel facing the air layer, wherein the display region of the display can be viewed from outside through the protecting plate, the at least one light reflection prevention layer, the air layer, and the light transmitting type solar panel.