DC ELECTRIC MOTOR WITH ASYMMETRICAL STATOR INDUCTORS

    公开(公告)号:US20200186064A1

    公开(公告)日:2020-06-11

    申请号:US16671381

    申请日:2019-11-01

    Abstract: A DC motor including a continuous rotation rotor; a first inductor characterized by first parameters; a second inductor characterized by second parameters; a voltage supply unit; a measurement unit for detecting time instants when a first induced voltage in the first inductor equals a second induced voltage in the second inductor; and a control unit for controlling the application of drive voltage pulses to the inductors. The rotor faces first the second inductor before facing the first inductor when being rotated. At least one of the second parameters is selected different from a corresponding parameter of the first parameters such that a maximum induced voltage in the first inductor is greater than a maximum induced voltage in the second inductor. The control unit is arranged to trigger each of the drive voltage pulses after a detection of an equal induced voltage in the first and second inductors.

    DEVICE AND METHOD FOR ADJUSTING THE RATE OF A WATCH

    公开(公告)号:US20180341226A1

    公开(公告)日:2018-11-29

    申请号:US15957949

    申请日:2018-04-20

    Abstract: A method for adjusting the rate of a watch with an oscillator arranged to generate oscillation at a nominal frequency N0, with a servo-system including a master oscillator arranged to generate excitation oscillation at an excitation frequency NE, which is approximately equal to, or equal to the nominal frequency N0, or to an integer multiple of this nominal frequency N0, the watch is subjected to excitation oscillation or to a modulated motion, generated by the master oscillator, during a transition phase after which the oscillator of the watch is stabilised at excitation frequency NE, and there is incorporated in the servo-system a winder for mechanical or automatic watches, arranged to move a support on which such a watch is fixed.

    DEVICE AND METHOD FOR ADJUSTING THE RATE AND CORRECTING THE STATE OF DISPLAY OF A WATCH

    公开(公告)号:US20180341225A1

    公开(公告)日:2018-11-29

    申请号:US15948192

    申请日:2018-04-09

    Abstract: Method for adjusting the rate of a basic oscillator of a watch arranged to oscillate at a nominal frequency N0, with a master oscillator generating an excitation frequency NE approximately equal to an integer multiple of this nominal frequency N0, the master oscillator subjecting the watch to excitation or a modulated motion during a transition phase after which the basic oscillator is stabilised at the excitation frequency NE, and a state of display correction method with a winder for mechanical or automatic watches, moving a support carrying the watch and comprising a state of display correction oscillator, having a lower variation of rate value than the initial variation of rate value DI of this basic oscillator, and oscillating at a correction frequency NC to impose oscillation or a motion on the watch, during a state of display correction phase whose duration is adjusted to exactly correct a state of display error measured at the initial moment of actuation.

    SELF-WINDING WATCH
    14.
    发明申请
    SELF-WINDING WATCH 审中-公开

    公开(公告)号:US20180088534A1

    公开(公告)日:2018-03-29

    申请号:US15710209

    申请日:2017-09-20

    CPC classification number: G04B5/08 G04B5/16 G04C1/062 G04C10/02

    Abstract: The invention relates to a self-winding watch comprising a movement connected to a winding device of a barrel spring comprising an oscillating weight pivoting around an axis A, a reduction wheel train cooperating with the oscillating weight to transmit the torque to the barrel, a storage unit for electrical energy, a photovoltaic cell arranged to receive the ambient light and charge the electrical energy storage unit, a control circuit connected to the terminals of said electrical energy storage unit and drive means connected to the circuit and coupled to the oscillating weight to displace it. According to the invention the electrical energy storage unit, the control circuit and the drive means are integrated to the oscillating weight.

    COMBINED RESONATOR WITH IMPROVED ISOCHRONISM
    16.
    发明申请
    COMBINED RESONATOR WITH IMPROVED ISOCHRONISM 有权
    具有改进的ISOCHRONISM的组合式谐振器

    公开(公告)号:US20160246258A1

    公开(公告)日:2016-08-25

    申请号:US15027478

    申请日:2015-07-07

    Abstract: A timepiece assembly including a combined resonator with at least two degrees of freedom which includes a first linear or rotary oscillator with reduced amplitude in a first direction relative to which oscillates a second linear or rotary oscillator with reduced amplitude in a second direction substantially orthogonal to the first direction. The rotary oscillator includes a second weight carrying a sliding-block. A wheel set is arranged for application of a torque to the resonator, the wheel set including a groove in which the sliding-block slides with minimal play. The sliding-block is arranged at least either to follow curvature of the groove when present, or to rub with friction in the groove, or to repel the inner lateral surfaces of the groove by magnetically or electrically charged surfaces in the sliding-block.

    Abstract translation: 一种包括具有至少两个自由度的组合谐振器的钟表组件,其包括在第一方向上具有减小的振幅的第一线性或旋转振荡器,所述第一线性或旋转振荡器相对于第一线性或旋转振荡器在基本上垂直于 第一个方向 旋转振荡器包括承载滑块的第二重物。 轮组设置用于向谐振器施加扭矩,轮组包括滑块以最小的间隙滑动的凹槽。 滑动块至少布置成当存在时跟随凹槽的曲率,或者在凹槽中摩擦摩擦,或者通过滑动块中的磁性或带电表面排斥凹槽的内侧表面。

    TUNING FORK OSCILLATOR FOR TIMEPIECES
    17.
    发明申请
    TUNING FORK OSCILLATOR FOR TIMEPIECES 有权
    调频摇摆振荡器

    公开(公告)号:US20160179058A1

    公开(公告)日:2016-06-23

    申请号:US14958373

    申请日:2015-12-03

    CPC classification number: G04C3/101 G04B17/04 G04B17/045 G04C3/008

    Abstract: A timepiece oscillator including a resonator formed by a tuning fork which includes at least two mobile oscillating parts, fixed to a connection element by flexible elements whose geometry determines a virtual pivot axis having a determined position with respect to this connection element and around which the respective mobile part oscillates, and the centre of masse of the mobile part coincides in the rest position with the respective virtual pivot axis, and, for at least one of the two mobile parts the flexible elements are formed of intersecting resilient strips extending at a distance from each other in two parallel planes, and whose directions, in projection on one of the parallel planes, intersect at the virtual pivot axis of the mobile part.

    Abstract translation: 一种钟表振荡器,包括由音叉形成的谐振器,所述谐振器包括至少两个可移动振荡部分,所述振荡部分通过柔性元件固定到连接元件,柔性元件的几何形状决定了相对于该连接元件具有确定位置的虚拟枢转轴线, 可移动部分振动,并且可移动部分的大块的中心与相应的虚拟枢转轴线重合在静止位置,并且对于两个可移动部件中的至少一个,柔性元件由相交的弹性条形成, 彼此在两个平行的平面中,并且在其中一个平行平面上的投影中的方向在可移动部分的虚拟枢转轴线处相交。

    REGULATING SYSTEM FOR A MECHANICAL WATCH
    18.
    发明申请
    REGULATING SYSTEM FOR A MECHANICAL WATCH 审中-公开
    机械手表调节系统

    公开(公告)号:US20160070235A1

    公开(公告)日:2016-03-10

    申请号:US14784175

    申请日:2014-07-22

    Abstract: Regulating members for a mechanical timepiece, specifically a system based on magnetic interaction between a resonator, in a form of a tuning fork for example, and an escape wheel, as a magnetic escapement. In the system plural areas of magnetic interaction between the resonator and the escape wheel are arranged such that torques produced at the escape wheel by the interactions compensate each other if the escape wheel is not synchronized at the frequency of the resonator. This results in negligible torque in the escape wheel when the escape wheel rotates slowly in a direction of an arrow or opposite direction. This allows the timepiece to start with a low mainspring torque and without any start procedure or device and provides better resistance of the timepiece against a loss of synchronization in event of a shock.

    Abstract translation: 用于机械钟表的调节构件,特别是基于例如音叉形式的谐振器与擒纵轮之间的磁相互作用的系统作为磁擒纵机构。 在该系统中,谐振器和擒纵轮之间的磁性相互作用的多个区域被布置成使得如果擒纵轮在谐振器的频率处不同步,则相互补偿在擒纵轮产生的扭矩相互补偿。 当擒纵轮在箭头方向或相反方向上缓慢旋转时,这导致擒纵轮中的扭矩可忽略不计。 这允许钟表以低发条扭矩开始,并且没有任何启动程序或装置,并且在震动的情况下提供更好的时钟电阻以防同步损失。

    WATCH WITH LIGHT SENSOR AND ANTENNA
    20.
    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

    CPC classification number: G04C10/02 G04B19/12 H01Q1/27

    Abstract: 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.

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