摘要:
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).
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.