Abstract: The method for test the rate of an electronic watch with a time base device (1) comprises three main steps for the test on test equipment. The time base device comprises at least one watch module (2) with a resonator (3) connected to an oscillator of an electronic circuit (4), which is followed by a divider circuit, which is controlled by an inhibition circuit, and which provides a divided timing signal for a motor. In a first step, a measurement is made of the frequency of the oscillator reference signal in at least one measurement period without inhibition. A second step is provided for acquiring the current inhibition value to inhibit a certain number of clock pulses in a subsequently inhibition period and to determine the inhibition value. Finally, a third step is provided for calculating the corresponding rate frequency of the watch.

Abstract: An electronic module including at least one electric motor for driving an analog display, a clock module including a time base delivering a clock signal connected to a divider circuit, the divider circuit delivering a reference signal sent to a control circuit arranged to control the electric motor, the clock module further including a measuring and correction circuit arranged between the time base and the divider circuit and delivering an intermediate compensated signal. The time base, the compensation module, the divider circuit, and the control circuit are arranged in a same case to form the clock module.

Abstract: An electronic device including: a calculation unit configured to generate a signal representative of a physical magnitude, for a motor driving a display device, the motor including two terminals, one positive and one negative, via which the calculation unit controls the motor; at least one shock detection circuit connected between the calculation unit and one terminal of the motor for detection of an external shock applied to the motor. The shock detection circuit includes a comparison part comparing an induced voltage generated in the motor following a shock to a predetermined reference voltage to identify a shock, and a selection part.

Abstract: The present invention concerns an electronic device comprising a calculation unit capable of generating a signal representative of a physical magnitude, for a motor driving a display device, said motor comprising a rotor in a magnetic circuit, two terminals, one positive and one negative, via which the calculation unit controls the motor, the electronic device further comprising at least one shock detector circuit connected between the calculation unit and a motor terminal for the detection of an external shock applied to the motor, said motor having a first position of stable equilibrium placed at a reference angular position and a second position of stable equilibrium placed at 180° from the first stable angular position, for each direction of rotation, a maximum angular position from which it is no longer possible to return the motor rotor into a prior angular position, the calculation unit using an algorithm which, following a shock, can detect the direction of rotation of the rotor by analyzing an induc

Abstract: An electronic device including: a calculation unit configured to generate a signal representative of a physical magnitude, for a motor driving a display device, the motor including two terminals, one positive and one negative, via which the calculation unit controls the motor; at least one shock detection circuit connected between the calculation unit and one terminal of the motor for detection of an external shock applied to the motor. The shock detection circuit includes a comparison part comparing an induced voltage generated in the motor following a shock to a predetermined reference voltage to identify a shock, and a selection part.

Abstract: The time base includes an oscillator generating a periodic signal, a frequency divider circuit formed by a division chain defining several division stages and a circuit for adjusting the divided frequency by inhibiting, in each inhibition period of a plurality of successive inhibition periods, an integer number of clocking pulses at the input of a given stage of the division chain. The time base is arranged to produce, in each inhibition period, a first real number corresponding to the real number of clocking pulses that must be removed to be precise and the adjustment circuit is arranged to calculate, in each inhibition period, a second real number equal to the addition of the first real number and the fractional part of the second real number obtained in the preceding inhibition period, the integer part of this second real number defining the number of clocking pulses to be inhibited in each inhibition period.

Abstract: The method for test the rate of an electronic watch with a time base device (1) comprises three main steps for the test on test equipment. The time base device comprises at least one watch module (2) with a resonator (3) connected to an oscillator of an electronic circuit (4), which is followed by a divider circuit, which is controlled by an inhibition circuit, and which provides a divided timing signal for a motor. In a first step, a measurement is made of the frequency of the oscillator reference signal in at least one measurement period without inhibition. A second step is provided for acquiring the current inhibition value to inhibit a certain number of clock pulses in a subsequently inhibition period and to determine the inhibition value. Finally, a third step is provided for calculating the corresponding rate frequency of the watch.

Abstract: The present invention concerns an electronic device comprising a calculation unit capable of generating a signal representative of a physical magnitude, for a motor driving a display device, said motor comprising a rotor in a magnetic circuit, two terminals, one positive and one negative, via which the calculation unit controls the motor, the electronic device further comprising at least one shock detector circuit connected between the calculation unit and a motor terminal for the detection of an external shock applied to the motor, said motor having a first position of stable equilibrium placed at a reference angular position and a second position of stable equilibrium placed at 180° from the first stable angular position, for each direction of rotation, a maximum angular position from which it is no longer possible to return the motor rotor into a prior angular position, the calculation unit using an algorithm which, following a shock, can detect the direction of rotation of the rotor by analysing an induc

Abstract: An electronic module including at least one electric motor for driving an analog display, a clock module including a time base delivering a clock signal connected to a divider circuit, the divider circuit delivering a reference signal sent to a control circuit arranged to control the electric motor, the clock module further including a measuring and correction circuit arranged between the time base and the divider circuit and delivering an intermediate compensated signal. The time base, the compensation module, the divider circuit, and the control circuit are arranged in a same case to form the clock module.

Abstract: The time base includes an oscillator generating a periodic signal, a frequency divider circuit formed by a division chain defining several division stages and a circuit for adjusting the divided frequency by inhibiting, in each inhibition period of a plurality of successive inhibition periods, an integer number of clocking pulses at the input of a given stage of the division chain. The time base is arranged to produce, in each inhibition period, a first real number corresponding to the real number of clocking pulses that must be removed to be precise and the adjustment circuit is arranged to calculate, in each inhibition period, a second real number equal to the addition of the first real number and the fractional part of the second real number obtained in the preceding inhibition period, the integer part of this second real number defining the number of clocking pulses to be inhibited in each inhibition period.

Abstract: Process for adjusting a time base by inhibiting clock pulses supplied by a clock circuit, this adjustment process comprising the following steps: selecting an inhibition period; determining a first number N of clock pulses to be suppressed per inhibition period to adjust over each inhibition period the number of clock pulses activating a frequency divider circuit such that the frequency of the time base comes closest to a reference unit frequency; selecting a plurality K of sub-periods for each inhibition period; suppressing in each sub-period a second number N1 of clock pulses corresponding to the result of the integral division of the first number by the number of sub-periods, and in addition to the suppression of the preceding step, suppressing in each inhibition period a third number N2 of clock pulses corresponding to the remainder of said integral division.

Abstract: The invention concerns an electronic watch (8) including: a motor (5), a power circuit (7) supplying first and second voltage levels; a case (11), in which there are mounted: first and second (A, D) output connections; a switch (9) actuated by an external actuator to connect the first connection to the second level (Vdd); a control circuit (4) for the motor including first and second three-state gates (12, 14) respectively connected to the first and second connections (A, D), a member (13) selectively connecting the first connection to the first level, the circuit including a test mode wherein the gates are brought to high impedance, the first connection (D) is connected to the first level (Vss), actuation of the actuator is determined as a function of the voltage measured at the output of the first gate.

Abstract: The invention concerns an electronic watch (8) including: a motor (5), a power circuit (7) supplying first and second voltage levels; a case (11), in which there are mounted: first and second (A, D) output connections; a switch (9) actuated by an external actuator to connect the first connection to the second level (Vdd); a control circuit (4) for the motor including first and second three-state gates (12, 14) respectively connected to the first and second connections (A, D), a member (13) selectively connecting the first connection to the first level, the circuit including a test mode wherein the gates are brought to high impedance, the first connection (D) is connected to the first level (Vss), actuation of the actuator is determined as a function of the voltage measured at the output of the first gate.

Abstract: The invention concerns a method for filtering signals (Vin) generated by a piezo-electric type accelerometer in response to detection of a shock applied to an object to which the accelerometer is connected, this method characterised in that it ensures, during a particular step, that the signal (Vin) generated by the accelerometer, after having increased and exceeded a first threshold value (VTH,ON) decreases and becomes lower than a second threshold value (VTH,OFF) lower than the first threshold value (VTH,ON) after a period of time (TP,ON) greater than a minimum period of time (TP,ON,MIN) and less than a maximum period of time (TP,ON,MAX). The invention also concerns a device for filtering signals generated by an accelerometer in response to detection of a shock applied to an object connected to the accelerometer. Finally, the invention concerns a portable object such as a wristwatch including a detection device of this kind.

Abstract: The present invention concerns a method for filtering signals (VIN) generated by a piezo-electric type accelerometer (34) in response to detection of a shock applied to an object to which the accelerometer is connected, this method being characterised in that it is ensured, during a first step, that the signal (VIN) generated by the accelerometer (34), after having increased and exceeded a first threshold value (VTH,ON) decreases and becomes lower than a second threshold value (VTH,OFF) lower than the first threshold value (VTH,ON) after a period of time (TP,ON) greater than a minimum period of time (TP,ON,MIN) and less than a maximum period of time (TP,ON,MAX). The invention also concerns a device for filtering the signals generated by an accelerometer in response to detection of a shock applied to an object to which the accelerometer is connected. Finally, the invention concerns a portable object such as a wristwatch including a detection device of this kind.

Abstract: A method for adjusting the rate of a horological module, said horological module including a printed circuit (1) on which are mounted in particular a quartz (10) and an integrated circuit (20) including an oscillator (21) driven by the quartz (10), a frequency divider circuit (22) with several stages (22.1 to 22.15), an adjustment circuit (23) allowing the introduction of a correction factor of the division ratio of said frequency divider circuit (22), and a memory circuit (24) containing data (N) representing said correction factor. The adjustment method according to the present invention uses a laser device to allow said data (N) representing the correction factor to be coded by the selective destruction of fuses (F1, F2; F.1 to F.6; F.1* to F.6*) forming memory elements of said memory circuit (24).

Abstract: An analog electronic timepiece also having a display (4) for at least two other items of time information comprising a timekeeping circuit delivering a daily signal S.sub.j to a perpetual calendar circuit delivering, in response to a command signal S.sub.k, an order signal S.sub.c representing the ranking occupied by the information on the display (4), and a disc signal S.sub.D representing the value of the instantaneous ranking of the time information displayed, in which a comparator-subtractor analysing the signals S.sub.c and S.sub.D in recurring manner delivers a signal S.sub.R modifying the display (4) until S.sub.D =S.sub.C, said display (4) having at least two distinct zones (4a, 4b) provided with different symbols occupying successive rankings.

Abstract: A circuit for suppressing the effect of rebounds of a contactor (2) on a control signal (C) produced thereby, wherein the contactor (2) ideally changes from one position to another position and remains in the other position for a predetermined time. The circuit comprises a sampling means (3) for sampling the control signal (C) at a first sampling rate (CLKA) and providing a output signal (C.sub.i) being in either a first or a second state, a detecting means (4) for determining a change of said output signal (C.sub.i) from one of said states to the other state, and a sampling prevention means (5) for preventing the sampling means (3) from sampling the control signal (C) for said predetermined time in response to the change in said output signal (C.sub.i), in order that said output signal (C.sub.i) remains in said other state for at least said predetermined time.