Mechanical timepiece comprising a movement which running is enhanced by a regulation device

    公开(公告)号:US11480925B2

    公开(公告)日:2022-10-25

    申请号:US16494496

    申请日:2018-03-16

    Inventor: Lionel Tombez

    Abstract: The mechanical timepiece is equipped with a movement which includes an indicator mechanism of at least one time data item, a mechanical resonator forming a slave oscillator which paces the running of the indicator mechanism, and a mechanical correction device to prevent a possible time drift in the running of the indicator mechanism. The mechanical correction device is formed by a master mechanical oscillator and a mechanical braking device of the mechanical resonator, this braking device arranged to apply periodically to the mechanical resonator mechanical braking pulses at a braking frequency determined by the master mechanical oscillator. Then, the mechanical system, formed by the mechanical resonator and the braking device, is configured to enable the braking device to be able to start the braking pulses preferably at any position of the mechanical resonator. Preferably, the braking pulses have a duration of less than one quarter of a set-point period.

    Measuring device for a mechanical watch

    公开(公告)号:US11372375B2

    公开(公告)日:2022-06-28

    申请号:US17030954

    申请日:2020-09-24

    Abstract: A portable device, and related method, that allows the values of one or more parameters characterising the operation of a mechanical watch to be measured. The device is provided with a contact microphone including a contact piece and a piezoelectric element. The contact piece is brought into physical contact with the case of a watch during a measurement period. The device further includes a power source, such as a rechargeable or replaceable battery, a microprocessor, a memory, and a screen for displaying the values measured, preferably a touch-sensitive screen. Preferably, the dimensions of the device are of a same order of magnitude as the case of a wristwatch. The device may have the shape of a horological eyeglass.

    METHOD OF FABRICATING A LIQUID CRYSTAL DISPLAY DEVICE AND A LIQUID CRYSTAL DISPLAY DEVICE

    公开(公告)号:US20220197084A1

    公开(公告)日:2022-06-23

    申请号:US17486177

    申请日:2021-09-27

    Abstract: A method of fabricating a liquid crystal display device including a reflective or transflective liquid crystal cell whose liquid crystal molecules are aligned in a planar or vertical manner, this liquid crystal cell being formed of a transparent front substrate located on the side of an observer, and a rear substrate, also transparent, which extends beneath the front substrate, parallel to and at a distance from the latter, these two front and rear substrates being joined to each other with a sealing frame which defines a sealed enclosure in which a liquid crystal composition is confined, the front and rear substrates being coated on their opposite faces with electrically conductive transparent electrodes and counter-electrodes, the optical properties of the liquid crystal composition being modified by application of an electric field at the point of intersection between an electrode and a corresponding counter-electrode.

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

    公开(公告)号:US20220137559A1

    公开(公告)日:2022-05-05

    申请号:US17647733

    申请日:2022-01-11

    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.

    WINDING DEVICE FOR AUTOMATIC WATCH
    240.
    发明申请

    公开(公告)号:US20220113682A1

    公开(公告)日:2022-04-14

    申请号:US17246891

    申请日:2021-05-03

    Abstract: The winding device includes a motorization device for driving a watch holder carrying at least one automatic watch with a mobile oscillating mass, and a measuring device for measuring the variation in the resistive torque opposed to the motorization device by the watch holder equipped with watches, depending on the degree of winding of the watches. The measuring device includes a speed measuring device to determine the speed and/or the variation in the speed of the motorization device, and/or include a torque measuring device to determine the value of the torque and/or the variation in the torque at the watch holder, and/or include a current measuring device to determine the value of the current and/or the variation in the current of an electric motor of the motorization device.

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