SPEED-REGULATING DEVICE FOR A ROTATING WHEEL SET OF A TIMEPIECE

    公开(公告)号:US20240337984A1

    公开(公告)日:2024-10-10

    申请号:US18606399

    申请日:2024-03-15

    CPC classification number: G04B17/30 G04B19/30

    Abstract: A timepiece with, in order to regulate the speed of rotation of a rotating wheel set, a regulating device including a microgenerator and an LED powered by the microgenerator without storage of electrical energy and arranged such that, for a range of functional speeds of the rotating wheel set, the corresponding range of frequencies of rotation of the rotor of the microgenerator generates, in its coils, an induced voltage range whose maximum voltage value for the maximum frequency is greater than a threshold voltage, preferably also the minimum voltage value for the minimum frequency, the motor device which drives the rotating wheel set being arranged to have a useful motor torque range allowing the rotating wheel set to be driven within the functional speed range. Also a related method.

    MOBILE LUMINOUS DISPLAY DEVICE, IN PARTICULAR FOR WATCHES

    公开(公告)号:US20240329603A1

    公开(公告)日:2024-10-03

    申请号:US18293430

    申请日:2022-07-18

    CPC classification number: G04B19/30

    Abstract: The invention relates to a display device (10), in particular for watchmaking, the display device including at least one dial (13) and a first movable body (12), for example a first hand, the first movable body (12) being configured to move relative to the dial (13) so as to indicate a plurality of positions on the dial (13), characterised in that it comprises a light source (18) arranged to emit a light radiation (16) through the dial (13), and in that the first movable body (12) comprises a colour filter (21) allowing modifying the colour of part of the light radiation (17) passing through the first movable body (12), so that the first movable body (12) has a different colour from the dial (13).
    The invention also relates to a timepiece comprising such a display device (10).

    BALANCE PROVIDED WITH MEANS FOR ADJUSTING ITS TEMPERATURE SENSITIVITY

    公开(公告)号:US20240329598A1

    公开(公告)日:2024-10-03

    申请号:US18610350

    申请日:2024-03-20

    CPC classification number: G04B17/222

    Abstract: A balance for a regulating member of a horological movement, the balance including, at least in part, a body that can be deformed as a function of temperature, the deformable body being arranged, at least in part, on the periphery of the balance, the balance being configured so as to be able to move about a centre of rotation, the balance including a device for adjusting the sensitivity of the deformable body to temperature change, the adjustment device being provided with a first inertial element arranged on the deformable body in order to be able to modify the moment of inertia thereof, the first inertial element being capable of moving relative to the deformable body into a plurality of positions, wherein the positions form a continuous set. A horological movement and a regulating member can include such a balance.

    METHOD FOR DEVELOPING A RESONATOR MECHANISM WITH A ROTATING FLEXIBLE GUIDE TO REDUCE OUT-OF-PLANE OSCILLATIONS

    公开(公告)号:US20240310783A1

    公开(公告)日:2024-09-19

    申请号:US18599503

    申请日:2024-03-08

    CPC classification number: G04B17/045

    Abstract: A method of setting up a resonator mechanism for timepieces, including a structure and an anchoring block from which is suspended at least one inertial element subjected to return forces exerted by a flexible pivot including a plurality of resilient blades deformable essentially in a plane XY perpendicular to the first direction Z, the anchoring block being suspended from the structure by a flexible suspension, the method including measuring a reference oscillation frequency of the inertial element about the Z direction in the XY plane, measuring a secondary oscillation frequency of the inertial element, comparing the secondary oscillation frequency with the reference oscillation frequency, adapting flexible suspension or substituting flexible suspension with another flexible suspension.

    Timepiece resonator including at least one flexible guide

    公开(公告)号:US12092995B2

    公开(公告)日:2024-09-17

    申请号:US17481790

    申请日:2021-09-22

    CPC classification number: G04B17/045 G04B17/32

    Abstract: A timepiece resonator including an inertial element moveable in relation to a fixed structure, and suspended to a flexible guide including flexible strips crossed in projection on a plane XY at a single crossing zone ZC, each one deformable in a plane parallel to the plane XY each one extending in a ribbon on either side of a neutral surface perpendicular to the plane XY and joining the first recess with the structure and the second recess with the inertial element, and including at least one rib asymmetrical in relation to its neutral surface, and, at the crossing zone ZC, either each flexible strip does not include any rib, or each rib is asymmetrical in relation to its neutral surface.

    DEVICE FOR AUTONOMOUS ADJUSTMENT OF THE ACTIVE LENGTH OF A BALANCE SPRING

    公开(公告)号:US20240302796A1

    公开(公告)日:2024-09-12

    申请号:US18427050

    申请日:2024-01-30

    CPC classification number: G04B18/04

    Abstract: A device (6) for autonomous adjustment of the active length of a spiral (5), for a balance-spiral type oscillator (4, 5), including a cock (12) mounted on a plate (13) of a horological movement (2) and in which a balance shaft pivots, the spiral (5) including an inner end secured to the balance shaft and an outer end secured to a balance spring stud (8) fastened to a balance spring stud holder (10), the balance spring stud holder (10) being pivotably mounted on the cock (12) concentrically with the balance shaft, and means for modifying the active length of the spiral (5).

    Timepiece mechanism provided with a magnetic gear

    公开(公告)号:US12074494B2

    公开(公告)日:2024-08-27

    申请号:US17872544

    申请日:2022-07-25

    CPC classification number: H02K49/102 G04B13/02

    Abstract: A mechanism including a magnetic gear including a first wheel, a second wheel and a third wheel. The first wheel is provided with permanent magnetic poles which are arranged so as to form the magnetised teeth of a first magnetic toothing. The second wheel and the third wheel are provided with teeth made of a soft ferromagnetic material respectively defining a second magnetic toothing and a third magnetic toothing, each with a number of teeth that is greater than that of the first magnetic toothing and having a magnetic coupling with this first magnetic toothing. The second magnetic toothing is directly coupled with the first magnetic toothing and with the third magnetic toothing thanks to the magnetic fluxes provided by the magnetised teeth of the first toothing and the teeth of the second magnetic toothing are magnetically separated from one another.

    METHOD FOR OPERATING A FAST START-UP OSCILLATOR SYSTEM, AND FAST START-UP OSCILLATOR SYSTEM

    公开(公告)号:US20240275333A1

    公开(公告)日:2024-08-15

    申请号:US18407528

    申请日:2024-01-09

    CPC classification number: H03B5/06 H03B5/32 H03K3/014 H03K3/0307 H03B2200/0094

    Abstract: A method for operating a fast start-up oscillator system, which includes a reference oscillator and a quartz oscillator connected to an electronic oscillator circuit, which is provided to supply a master clock signal to a start-up controller configured to perform a fast start-up procedure of the quartz oscillator via the reference oscillator. The start-up controller includes a calculation unit and a memory unit for storing data in connection with the reference oscillator for starting the quartz oscillator. The method includes parameterising the calculation unit for starting the quartz oscillator, generating excitation bursts, determining a phase deviation in different successive periods between the oscillation of the reference oscillator and the oscillation of the quartz oscillator, calculating a frequency error in the calculation unit, and correcting the frequency of the reference oscillator to the frequency of the quartz oscillator.

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