Abstract: A rotating piezoelectric motor including a piezoelectric actuator including a resonator having a pair of arms connected at one of their ends in a connection area, the other two ends being referred to as ‘free’, a passive element able to be driven in rotation by the friction of the free ends on the passive element, the passive element including a disc and a rim extending from the periphery of the disc, the rim passing between the free ends of the arms.

Abstract: The present invention relates to a method for setting a quartz watch, the watch comprising an optical sensor and a microcontroller configured to receive electrical signals generated by the optical sensor, the method being performed by way of a portable electronic appliance comprising a point light source and a microcontroller configured to control said point light source, the method comprising the following steps: placing the optical sensor of the watch facing the point light source of the electronic appliance on the order of the microcontroller of the electronic appliance, flashing the point light source of the electronic appliance so as to form a sequence of light pulses corresponding to a coding of setting parameters, the sequence then being received by the optical sensor of the watch decoding the received light sequence, by way of the microcontroller of the watch, in order to recover the setting parameters on the order of the microcontroller of the watch, setting the watch according to the setting para

Abstract: A device for selecting a combination of patterns for a timepiece, including an inner disc including N angular sectors of the same size, each bearing a symbol on its periphery, with N being a whole number greater than 1; an outer disc coaxial to the inner disc and with a larger diameter, the outer disc bearing M symbols distributed over M*N angular sectors of the same size, with M being a whole number greater than 1, each of the M symbols of the outer disc being repeated on N consecutive sectors of the outer disc; a dial extending opposite the inner disc, the dial including an aperture allowing a pattern of the inner disc to be matched with a pattern of the outer disc; an activation device allowing the inner disc to rotate and a meshing device coupling the two discs according to a speed reducing ratio M.

Abstract: A rotating piezoelectric motor including a piezoelectric actuator including a resonator having a pair of arms connected at one of their ends in a connection area, the other two ends being referred to as ‘free’, a passive element including a cylindrical part extending orthogonally to the resonator, the cylindrical part being able to be rotated by the friction of the free ends of the arms on the cylindrical part, each free end including a protuberance such that the protuberances extend towards one another and together form a housing for a portion of the cylindrical part, the motor including a device for holding the portion of the cylindrical part inside the housing.

Abstract: A rotating piezoelectric motor including a piezoelectric actuator including a resonator having a pair of arms connected at one of their ends in a connection area, the other two ends being free, a passive element including a cylindrical part extending substantially orthogonally to the resonator and passing between the free ends of the arms, the cylindrical part being rotatable by friction of the free ends, the passive element including: a lower and upper truncated cones, the small bases of the cones being arranged facing each other and on either side of the resonator, the cylindrical part of the passive element at least partly axially traversing the cones, the upper truncated cone being movable along the cylindrical part, and at least one of the cones being integral in rotation with the cylindrical part, a device for holding the lateral surfaces of the cones in contact with each of the free ends of the arms of the resonator.

Abstract: A device for selection of a combination of motifs for a timepiece, including an inner disc, and a coaxial outer disc, the inner disc having a smaller diameter than the outer disc, the discs including angular sectors of the same size, at least two angular sectors of each disc bearing a motif on their periphery; a device for actuation permitting rotation of the inner disc, and a gear device for coupling the two discs according to a reduction ratio; a dial extending opposite the inner disc, the dial including an aperture to put a motif of the inner disc and a motif of the outer disc into correspondence, such that a complete rotation of the inner disc gives rise to a rotation of the outer disc by one angular sector, the size of the aperture being sufficiently large for each motif of the outer disc to be in correspondence successively with all the motifs of the inner disc, when the inner disc is rotated.

Abstract: A timepiece including a case middle closed by a glass and the following elements positioned in the case middle: a dial, a rigid mounting plate extending under the dial, a module including an electric motor, referred to as the motor module, a printed circuit board, of which at least a first portion is interposed between the mounting plate and the motor module, means for the assembly of the motor module on the mounting plate through the first portion of the printed circuit board.

Abstract: A device for controlling at least two electronic and/or mechanical functions of a portable object of small dimensions includes a control stem that is axially movable between at least a first and a second position. The control stem is provided at a first end with an actuation member, and is provided towards a second end with a position indexing plate arranged to cooperate with an elastic member in order to match each of the first and second positions of the control stem with one of the mechanical or electronic functions.

Abstract: A method for adjusting a timepiece including: providing a portable object including a screen and a camera; testing accuracy of a piece of time information of the timepiece by using the camera of the portable object to compare with a piece of time information obtained from an external source; sending the time information from the portable object to the timepiece if a difference is detected, the timepiece including at least one phototransistor arranged at a case for receiving the time information, the timepiece to display the correct time information, the sending including: defining on the screen of the portable object an area of shape and dimensions similar to the case of the timepiece; holding the case of the timepiece against the area; sequentially displaying black or white in the area, in a sequence of black and white corresponding to a luminous coding of the time information.

Abstract: An electronic timepiece with a first and second electric motors for driving time indicating hands with a set of gear wheels, and a microcontroller connected to the motion sensor and controlling each motor. A motion sensor includes a movable element arranged to move freely inside a structure connected to the timepiece movement. As a function of the position and movement of the moving element inside the housing, a first and second electric signals, different from each other, are generated by the motion sensor for the microcontroller in a defined time period to determine whether the timepiece is in use. If only one electric signal is detected by the microcontroller in the defined time period, the timepiece changes into a sleep mode, by stopping at least the first electric motor intended to drive the seconds hand.

Abstract: A push-piece winding button control device is for a portable object of small dimensions. This device includes a pivoting control stem axially movable between at least a transitory first position and a stable second position. The device further includes a position indexing plate arranged to be integral in translation with the control stem, while keeping the same orientation relative to the frame. The device also includes a cam follower arranged to cooperate with a longitudinal cam path formed in the position indexing plate. The cam path includes a recess defining the stable position of the control stem, and a ramp-shaped profile portion which rises from the recess towards the transitory position.

Abstract: A universal moon phase display device for a watch including a device that calculates or receives the date, that receives a geolocation signal, that calculates or receives a lunar calendar with the correlation between the date of the moon phase, that converts the day's moon phase into a first angular position of a first display member included in this device and which includes a representation of the normal moon, and that further determines the northern or southern hemisphere in which this device is located and controls the direction of rotation of first drive device included in this device in order to drive the first display member in opposite directions in the northern hemisphere and in the southern hemisphere.

Abstract: A watch including a case containing a plate and an electronic module powered by a button cell battery, a conductor electrically connecting the button cell battery to the electronic module and a clamping device capable of ensuring an electrical connection between the button cell battery and the conductor, wherein the clamping device includes a magnet.

Abstract: A timepiece including a timepiece movement and sunrise and sunset indicating device that take account of the date and geolocation of the user, the device including a first device for receiving the current date, a second device for receiving a geolocation signal, and a disc bearing a representation of the sun, arranged to be capable of pivoting about an axis passing through the centre of the disc. The sunrise and sunset indicating device include a movable horizon arranged to move above the disc and to indicate the position of the sun with respect to the horizon.

Abstract: A motor group including motor modules, each including a motor device driving a display wheel set, with a centre pipe fixed on a plate, including a device for rotational guiding, about a main axis, of a display wheel set internal or external to the centre pipe, this module includes an axial stop arranged to limit to a predetermined value the axial play in the direction of the main axis between the centre pipe and the display wheel set, wherein a protruding surface of the centre pipe or of the display wheel set, or an added axial stop, captively mounted between the centre pipe and the display wheel set, or fixed to the display wheel set.

Abstract: A method of detecting a movement of a timepiece setting stem arranged to be moved axially along and/or rotated about its longitudinal axis. The method includes a light source illuminating a portion of the setting stem; a light detector receiving a reflected or diffracted light pattern from the setting stem; a processor forming a first pixel pattern representative of the reflected light pattern at a first time instant; the processor forming a second pixel pattern representative of the reflected light pattern at a second, later time instant; and determining that the setting stem has been moved, if the second pixel pattern is different or shifted with respect to the first pixel pattern.

Abstract: The invention relates to a portable electronic device including a case and a watchband link attached to said case, the case comprising a pair of horns, between which is disposed a female electrical connector, the link comprising a male electrical connector disposed at the end of the link and adapted to make an electrical connection with the female electrical connector when the link is mounted on the case. According to the invention, each horn comprises a bar intended to come to be housed in an opposite housing of the watchband, the bars engaging successively in a guide groove and then in a locking groove formed in the link, the device comprising a manual actuation member for moving the bars into a retracted position.

Abstract: A device for rotating a toothed wheel, including a linear piezoelectric motor including: a passive element having an elongated shape, a piezoelectric actuator capable of axially moving the passive element in a bidirectional manner, a transmission member fastened to the passive element, meshing with a toothing of the wheel in such a way as to rotate the wheel by one tooth in a first direction of rotation when the passive element is moved axially in a first direction of movement, a jumper mobile between two end positions, including a lowered position in which it blocks a rotation of the wheel in a second direction of rotation opposite to the first direction of rotation.

Abstract: A timepiece includes a case in which an electronic module supplying at least one item of information is arranged. The at least one item of information is displayed on a dial by a display. The electronic module also includes a communication unit having an optical receiving device. The optical receiving device includes at least one photoelectric receiver arranged to face a first aperture formed on the dial so that an optical signal can be received by the optical receiver.

Abstract: A timepiece includes a timepiece movement provided with an analog display and at least one wheel rotating integrally with a rotary indicator of the analog display. The wheel includes an electrically conductive plate pierced with at least one aperture. The timepiece also includes a device for detection of a reference angular position of the aperture. The detection device includes a first electrode, a second electrode, and a common electrode which are planar and arranged in a plane parallel to the wheel. The common electrode is arranged along portions of the first electrode and of the second electrode. The aperture is at least partially above or below: the first electrode in a first position of disequilibrium; the first electrode and the second electrode in a position of equilibrium; and the second electrode in a second position of disequilibrium.