Abstract: A control device (2) for controlling power supply to a continuous-rotation motor, of the horological, DC type, is arranged to generate electrical pulses with a lower supply voltage to drive the rotor. The number of pulses per time interval is a function of the load applied to the motor. A voltage divider is arranged to supply the lower supply voltage with a plurality of different values and thus the electrical pulses with a variable voltage. A logic circuit counts the numbers of electrical pulses in successive time periods; to periodically select a voltage value, from among a plurality of different values, as a function of a counted number of electrical pulses or of a succession of counted numbers of electrical pulses; and to control the voltage divider so that the latter supplies the lower supply voltage with the selected voltage value after the selection of this voltage value.

Abstract: A coiling limitation device for a timepiece barrel includes at least one non-return notch arranged to cooperate with a sliding flange of the spring of the barrel, which is integrated in a watch including a resonator cooperating with an escapement mechanism. This device includes an acoustic device for the acoustic monitoring of the coiling of the barrel of a watch positioned on a receptacle included by the device, which acoustic devices are arranged to identify a click noise during each start of cooperation between the sliding flange and a notch. The device includes piloting devices arranged to stop the coiling of the barrel at the instant of the perception of the click noise or the repetition of the click noise.

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.

Abstract: A non-acoustic alarm for a portable object includes an electromagnetic motor which can be electrically controlled in order to generate a vibratory effect. The electromagnetic motor includes a movable magnetic circuit and a stationary magnetic circuit. The movable magnetic circuit includes a coil, a ferromagnetic core coupled to a magnetic cage forming an extension of the ferromagnetic core. The magnetic assembly of the movable magnetic circuit constitutes a movable magnetic mass of the non-acoustic alarm capable of generating the vibratory effect. The non-acoustic alarm includes resilient connection elements resiliently connecting the movable magnetic circuit to the stationary magnetic circuit. The resilient connection elements are shaped to guide and ensure that the movable magnetic circuit undergoes a linear, or quasi-linear, oscillatory motion during the electrical control of the electromagnetic motor.

Abstract: A method for measuring the medium frequency of a digital signal derived from a reference periodic signal generated by an electronic oscillator (quartz oscillator) forming a timepiece (2) which includes an analogue time display device and a continuous rotation electromechanical transducer (generator or continuous rotation motor) which is kinematically linked to this display device and wherein the medium rotational speed is regulated by a regulation device. The medium frequency of the digital signal is determined by a measurement device (70) without galvanic contact with the movement of the timepiece. The measurement method makes it possible to determine the rate of the timepiece and the precision of the electronic oscillator based on regulation impulses detected by a magnetic sensor (72) and over a measurement period limited to the duration of an inhibition cycle of periods of the reference periodic signal.

Abstract: A time-limited power generation device (100) for a timepiece (1000), including a manoeuvring member (1) manoeuvrable by a user against an elastic return (2) arranged to indirectly drive an electric generator (6) for generating an electric current for a limited time period, and including a toothed member (3) movable with a degree of freedom relative to said manoeuvring member (1) and delimiting therewith a separate chamber (20) for receiving each elastic return (2), held compressed in its chamber (20) between a pre-stressed position of rest and a maximum compression position, between a first support banking (11) that includes the manoeuvring member (1) and a second support banking (32) that includes the toothed member (3), arranged to be driven by the elastic return (2) for driving the electric generator (6) directly or indirectly through a geartrain.

Abstract: A modular watch (1) including at least a middle (10), a back (11), a display module (12) having a dial, time display means, a crystal and first magnetic gear means, a horological module (13) including a horological movement with second magnetic gear means arranged to cooperate with the magnetic gear means of the display module (12), and first and second bracelet strands integral with the middle (10) at a pair of horns (20, 30). The display module (12) and the horological module (13) are mounted one on top of the other, said display module (12) being mounted such that it is fixed against the middle (10), and the horological module (13) being mounted such that it can rotate between the back (11) and the display module (12) in order to set the time.

Abstract: A horological movement provided with a generator and a circuit for regulating the frequency of rotation of this generator, the regulation circuit being arranged to be able to detect the zero crossings of an induced voltage generated in the stator by the rotating rotor and to generate first braking pulses which are triggered after zero crossings and each end before the induced voltage reaches a peak value, preferably before the rectified induced voltage reaches a power supply voltage provided by a power supply capacity. In addition, the regulation circuit is arranged so as to be able to further generate second braking pulses each of which occurs after detection of the end of a charging period of the power supply capacity during which the induced voltage reaches a peak value and each end before the induced voltage crosses zero.

Abstract: A watch including a gasket (18) arranged at the periphery of the glass (14), an intermediate portion (20) laterally surrounding the analogue display and defining a radial surface forming an axial stop for the glass, a solar cell (30) extending at least mostly between the lower level of the dial and the glass and being arranged behind the intermediate portion, which is formed at least partially by a translucent or transparent material and configured to make it possible for the incident light to propagate in the intermediate portion and to subsequently reach the solar cell. The gasket is also formed at least mostly by a translucent or transparent material and it forms with the intermediate portion axially a continuous medium. In variants, the gasket is arranged axially adjacent to the intermediate portion or it is axially separated from the intermediate portion by a translucent or transparent intermediate medium.

Abstract: An inertial mass with adjustment of inertia and/or unbalance for a horological resonator, including a plurality of mobiles for adjusting inertia and/or unbalance, toothed or fluted, each mounted pivotably about a mobile axis with respect to a flange that the inertial mass includes, and with a centre of mass off-centre with respect to this mobile axis, each mobile cooperating by meshing with an inertia and/or unbalance adjustment crown, toothed or fluted, under a permanent constraint exerted by an elastic return force exerted by the crown and/or the mobile.

Abstract: A watch includes a striking mechanism, including an attached gong (4) and a hammer (15), as well as a battery (6) and an integrated circuit (7) powered by the battery and configured to produce current pulses, and an electrodynamic actuator (17) which is connected to the integrated circuit and configured to receive said pulses, the actuator being integral with the hammer or connected to the hammer to generate in response to the pulses a movement of the hammer from a rest position thereof, the movement being able to actuate an impact of the hammer on the gong. The mechanism also includes a spring (27) connected to the hammer so as to return the hammer to its rest position after the impact. Depending on particular embodiments, the hammer undergoes one or more pre-oscillations before reaching the impact. The hammer and the gong may be provided with attracting magnets.

Abstract: A control device (2) for controlling power supply to a continuous-rotation motor, of the horological, DC type, is arranged to generate electrical pulses with a lower supply voltage to drive the rotor. The number of pulses per time interval is a function of the load applied to the motor. A voltage divider is arranged to supply the lower supply voltage with a plurality of different values and thus the electrical pulses with a variable voltage. A logic circuit counts the numbers of electrical pulses in successive time periods; to periodically select a voltage value, from among a plurality of different values, as a function of a counted number of electrical pulses or of a succession of counted numbers of electrical pulses; and to control the voltage divider so that the latter supplies the lower supply voltage with the selected voltage value after the selection of this voltage value.

Abstract: A rotary piezoelectric motor (1), in particular for a timepiece, including a rotor (3) configured to rotate and actuate a mechanical device, and a stator (2) configured to rotate the rotor (3), the stator (2) including a piezoelectric actuator provided with a resonator (29) arranged to perform an oscillatory motion, and a fixed element (4). The resonator in a movable element (5) arranged at a distance from the fixed element (4) and connected to the fixed element (4), the piezoelectric actuator being configured to move the movable element (5) against the rotor (3) to make it rotate, the movement of the movable element (5) making the rotor (3) rotate in a first direction.

Abstract: A universal device is for preparation of a watch with a gain/loss correction crown and an oscillating resonator. The device includes winding and a gain/loss corrector with a robotic manipulator for manoeuvring the crown. It also includes an adjustment device with a gain/loss correction device including a gain/loss-corrector oscillator generating an oscillation to subject the watch to an oscillation at a correction frequency NC and/or to a modulated movement. The gain/loss correction device includes a gain/loss controller that controls the oscillation of the gain/loss-corrector oscillator, interfaced with a device to measure the gain/loss of the watch. The gain/loss correction device also includes an automatic winder with a watch-holder stand subjected to the oscillations or movements generated by the gain/loss-corrector oscillator.

Abstract: A watch self-winding device with rotary motion, including a base carrying a motor driving in rotation a support carrying a watch and includes an upper watch holder with a surface in direct contact with a watch, this support includes a microphone for listening to a watch and an embedded electronic circuit processing the signal from the microphone, the device includes, in order to supply power to the embedded electronic circuit, a first coil fixed to the base and powered by a power source carried or relayed by the base, and a second coil embedded in the support, coaxial to the first coil and arranged to transmit power to the embedded electronic circuit, which is arranged to exchange information with a static electronic circuit in the base.

Abstract: A timepiece assembly includes a watch having a mechanical movement and an analogue time display, the running of which is set by a mechanical resonator, and a support for the watch. To correct a time displayed by the analogue display, the timepiece assembly includes a correction system which is formed by a mechanical device incorporated into the watch and by an electrical device incorporated into the support. The mechanical device includes a magnet supported by an elastic blade and is arranged in the watch to brake the oscillating mechanical resonator, for example by applying periodic braking, or to momentarily stop its oscillation by exerting a magnetic force on the magnet with a magnetic field produced by a coil of the electrical device and passing through the case of the watch, to carry out essentially a set correction of the time displayed.

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.

Abstract: A mechanism (1) including a magnetic gear (2) including a first wheel (6B) and a second wheel (6C) provided with a first magnetic toothing (10) and a second magnetic toothing (12) respectively. The first and second magnetic toothings are respectively formed by first and second teeth made of a soft ferromagnetic material; and the magnetic gear (2) further includes a third wheel (6A) arranged between the first and second wheels (6B, 6C) and provided with a third magnetic toothing (8) formed by permanent magnetic poles, in particular by bipolar magnets. In general, the first wheel is a drive wheel, whereas the second wheel is driven into order to carry out a function or transmit a torque. The third intermediate wheel is preferably mounted such that it can rotate freely.

Abstract: A bearing for an arbor or staff of a rotary wheel set of a timepiece movement, the bearing including a bearing block provided with a housing and an endstone arranged inside the housing, the endstone having a main body provided with a cavity configured to receive a pivot of the arbor of the rotary wheel set, the pivot having the shape of a first cone having a first solid angle, the apex of the first cone being rounded with a predefined first radius of curvature in a range from 0.2 ?m to 50 ?m, the cavity having a second cone shape with a second solid angle, greater than the first solid angle, so that the pivot can rotate in the cavity, the apex of the second cone being rounded and having a predefined second radius of curvature. The second radius of curvature is smaller than the first radius of curvature.

Abstract: A horological movement (6) including: a plate (7); a mechanical resonator (8) including an oscillating balance (11) rotatably mounted relative to the plate (7), and a spiral spring (22) coupled to the balance (11); an electromagnetic regulator (29) coupled to the mechanical resonator (8) to regulate the frequency of the oscillations of the balance (11), and including at least one permanent magnet (30) fixedly mounted relative to the plate (7), at least one coil (31), a quartz or silicon resonator (32) and an electronic circuit (33) connected to the resonator (32) and to the coil (31), all mounted on the balance (11) while being completely included in an inner cavity (18) delimited by the latter.