TIMEPIECE COMPRISING A MECHANICAL MOVEMENT WHOSE RATE IS REGULATED BY AN ELECTRONIC DEVICE

    公开(公告)号:US20190286063A1

    公开(公告)日:2019-09-19

    申请号:US16354217

    申请日:2019-03-15

    Abstract: A timepiece includes a mechanical oscillator, formed by a balance and a piezoelectric balance spring, and a regulating device for regulating the frequency of the mechanical oscillator which is arranged to be able to produce time-separated regulating pulses, each consisting of a momentary decrease in an electrical resistance applied by the regulating device between two electrodes of the balance spring relative to a nominal electrical resistance. Each regulating pulse produces a variation of rate which varies as a function of its moment of starting in a half-period of the mechanical oscillator, the characteristic function of this variation of rate relative to the moment of starting of at least one regulating pulse respectively in at least one half-period of the mechanical oscillator being negative in a first temporal zone of at least one half-period and positive in a second temporal zone of at least one half-period.

    TIMEPIECE COMPRISING A MECHANICAL OSCILLATOR ASSOCIATED WITH A REGULATION SYSTEM

    公开(公告)号:US20190187623A1

    公开(公告)日:2019-06-20

    申请号:US16220232

    申请日:2018-12-14

    Inventor: Lionel TOMBEZ

    CPC classification number: G04C3/068 G04B17/06 G04C3/04 G04C10/00 G04G19/06

    Abstract: A timepiece includes a mechanical movement with a mechanical oscillator and an electronic device for regulating the medium frequency of this mechanical oscillator. It includes an electromagnetic transducer and an electric converter which includes a primary storage unit for powering the regulation circuit. The electromagnetic transducer is arranged to supply a voltage signal exhibiting first voltage lobes in first half-alternations and second voltage lobes in second half-alternations of the oscillations of the mechanical oscillator. The regulating device includes a load pump arranged to transfer electric loads from the primary storage unit into a secondary storage unit, these electric loads being extracted selectively in different time zones according to a time drift detected in the functioning of the mechanical oscillator relative to an auxiliary oscillator, particularly quartz-based.

    Method for maintaining and regulating the frequency of a timepiece resonator

    公开(公告)号:US10324416B2

    公开(公告)日:2019-06-18

    申请号:US15620050

    申请日:2017-06-12

    Abstract: A method for maintaining and regulating frequency of a timepiece resonator mechanism around its natural frequency, the method including: at least one regulator device acting on the resonator mechanism with a periodic motion, to impose a periodic modulation of resonant frequency or quality factor or a position of a point of rest of the resonator mechanism, with a regulation frequency between 0.9 times and 1.1 times the value of an integer multiple of the natural frequency, the integer being greater than or equal to 2 and less than or equal to 10, and the periodic motion imposes a periodic modulation of the quality factor of the resonator mechanism, by acting on losses and/or damping and/or friction of the resonator mechanism.

    Altitude measurement device and portable object comprising the same

    公开(公告)号:US10295344B2

    公开(公告)日:2019-05-21

    申请号:US15215760

    申请日:2016-07-21

    Abstract: Altitude measurement device including an atmospheric pressure sensor arranged to be compressed or to expand in a rectilinear direction as a function of the atmospheric pressure to be measured which increases or decreases, wherein the movements of deformation of the atmospheric pressure sensor are transformed, via a transmission system, into a pivoting motion, in a plane perpendicular to the rectilinear direction of deformation of the atmospheric pressure sensor, of an activation system which drives the pivoting of an indicator hand, wherein the indicator hand moves over a graduated circular scale, wherein the atmospheric pressure sensor is arranged to be able to be moved in one direction or in the opposite direction depending on the rectilinear direction of deformation thereof relative to the other components of the altitude measurement device, wherein the atmospheric pressure sensor is mounted on a seat which is fixed in a support, which forms a case with a cover.

    Dial applique for a timepiece
    289.
    发明授权

    公开(公告)号:US10268161B2

    公开(公告)日:2019-04-23

    申请号:US15380367

    申请日:2016-12-15

    Inventor: Pierry Vuille

    Abstract: An applique intended to be affixed to a timepiece dial including at least one foot portion having a first end attached to the applique and a second, free end, the foot portion being arranged to be capable of insertion into a hole provided in the dial. The foot portion includes at least one aperture opening towards the exterior and forming a housing arranged to receive anchor for anchoring the foot portion to the dial, once the foot portion is inserted into the hole in the dial.

    METHOD FOR CUTTING WATCH CRYSTALS
    290.
    发明申请

    公开(公告)号:US20190113890A1

    公开(公告)日:2019-04-18

    申请号:US16104238

    申请日:2018-08-17

    Abstract: Method for cutting a watch crystal along a contour in a plate of transparent material, with the following steps: making, on a first side of the plate, a first cut line or kerf to form a first chamfer, for each crystal of the plate; turning the plate over and marking the position of the first chamfers or of a previously made machined marking; making, on a second side, a second cut line or kerf to form a second chamfer, for each crystal; separating the crystals by machining through the plate at each contour to form an edge of the crystal.

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