Abstract: A regulator of the present disclosure includes a regulator pin having a pair of leg portions in which a hairspring is loosely fitted in a gap between the pair of leg portions, a regulator body configured to hold the regulator pin, and a pin support having an attachment portion that is detachably attached to the regulator pin or the regulator body, and a receiving portion that prevents the hairspring from being detached from the pair of leg portions.

Abstract: An electronic timepiece enables driving by appropriate drive conditions even when the load on a motor changes. The electronic timepiece includes a motor having a coil; a driver that is controlled to an on state supplying drive current to the coil, and an off state not supplying the drive current; a driver controller configured to control the driver to the on state or the off state based on a control parameter and current value through the coil; and a control parameter setter configured to maintain or change the control parameter based on the on state or the off state control state of the driver controller.

Abstract: An electronic watch includes a motor including a coil, a driver controlled to an ON state for supplying a driving current to the coil and an OFF state for not supplying the driving current, a driver controller configured to control the driver to the ON state or the OFF state depending on a value of a current flowing through the coil, and a polarity switcher configured to switch a polarity of the driving current when a prescribed condition is satisfied after detecting that an ON time, which is a duration of the ON state of the driver controller, reaches a maximum.

Abstract: A stepping motor, a driver, a current detection circuit, a first driving circuit configured to output a first driving signal to the driver, a rotation detection circuit configured to detect rotation of the rotor, and a second driving circuit configured to output a second driving signal selected from plural kinds of the second driving signals with different supply times of the driving current supplied to the coil, and configured to output a correction driving pulse that is preset to the driver when, after outputting the second driving signal, the rotation detection circuit detects that the rotor is not rotating, are included, and a resistance value R[?] of the coil and the driving voltage V [V] of the stepping motor satisfy 900 V[?]?R?1100 V[?], and 1.8 [V]?V?2.4 [V].

Abstract: Provided is a motor drive circuit capable of driving a stepper motor even if the load on the stepper motor varies. A motor drive circuit has a first drive circuit that outputs a first drive signal to the driver; a second drive circuit that outputs a second drive signal to the driver; a controller that controls the first drive circuit and second drive circuit. The first drive circuit is configured to output a first drive signal based on the current value of current flow of a coil of a stepper motor. The second drive circuit is configured to output multiple types of second drive signals that differ by the supply time of drive current supplied to the coil. Based on a result of driving by the first drive circuit, the controller selects the type of second drive signal the second drive circuit outputs.

Abstract: An electronic watch includes a motor including a coil, a driver controlled to an ON state for supplying a driving current to the coil and an OFF state for not supplying the driving current, a driver controller configured to control the driver to the ON state or the OFF state depending on a value of a current flowing through the coil, and a polarity switcher configured to switch a polarity of the driving current when a prescribed condition is satisfied after detecting that an ON time, which is a duration of the ON state of the driver controller, reaches a maximum.

Abstract: An electronic timepiece enables driving by appropriate drive conditions even when the load on a motor changes. The electronic timepiece includes a motor having a coil; a driver that is controlled to an on state supplying drive current to the coil, and an off state not supplying the drive current; a driver controller configured to control the driver to the on state or the off state based on a control parameter and current value through the coil; and a control parameter setter configured to maintain or change the control parameter based on the on state or the off state control state of the driver controller.

Abstract: Provided is a motor drive circuit capable of driving a stepper motor even if the load on the stepper motor varies. A motor drive circuit has a first drive circuit that outputs a first drive signal to the driver; a second drive circuit that outputs a second drive signal to the driver; a controller that controls the first drive circuit and second drive circuit. The first drive circuit is configured to output a first drive signal based on the current value of current flow of a coil of a stepper motor. The second drive circuit is configured to output multiple types of second drive signals that differ by the supply time of drive current supplied to the coil. Based on a result of driving by the first drive circuit, the controller selects the type of second drive signal the second drive circuit outputs.

Abstract: An electronic timepiece has a plurality of modes and includes a plurality of indicating hands including a first indicating hand as a mode hand that indicates each mode, an operation section that allows mode switching operation that instructs switching among the modes, and a display control section that moves the plurality of indicating hands to be moved on the basis of the mode switching operation in such a way that periods for which the plurality of indicating hands move in high-speed advance action do not overlap with one another. The display control section first moves the first indicating hand among the plurality of indicating hands.

Abstract: An electronic device is equipped with power generating means (unit), a secondary battery, a device, charging detection means (unit), battery voltage detection means (unit), and a time display control means (unit). The time display control means (unit) is equipped with an operation suspension portion, an operation resumption portion, a timer, a persistence display control portion and a timer updating portion. The timer updating portion updates the remaining time of the timer to the persistence time according to the detected voltage detected by the battery voltage detection means (unit) is longer than the remaining time, and operates the timer in operation as it is when the persistence time according to the detected voltage is equal to or less than the remaining time of the timer in operation.

Abstract: An electronic timepiece has a plurality of modes and includes a plurality of indicating hands including a first indicating hand as a mode hand that indicates each mode, an operation section that allows mode switching operation that instructs switching among the modes, and a display control section that moves the plurality of indicating hands to be moved on the basis of the mode switching operation in such a way that periods for which the plurality of indicating hands move in high-speed advance action do not overlap with one another. The display control section first moves the first indicating hand among the plurality of indicating hands.

Abstract: An electronic timepiece with a solar cell is provided with a solar cell, a solar cell holding member, a light-transmissive character plate, a ground plate, and a ring-shaped calendar wheel. The solar cell includes a base material that is made of an insulating material, and a light-receiving unit that is arranged on a first surface of the base material. The solar cell holding member is fixedly attached to a second surface of the base material. The light-transmissive character plate is arranged on a timepiece front side of the solar cell. The ground plate is arranged on a back surface of the solar cell. The ring-shaped calendar wheel is disposed between the character plate and the ground plate. The solar cell holding member is arranged on a character plate side of the calendar wheel to position the calendar wheel.

Abstract: An electronic timepiece with a solar cell is provided with a solar cell, a solar cell holding member, a light-transmissive character plate, a ground plate, and a ring-shaped calendar wheel. The solar cell includes a base material that is made of an insulating material, and a light-receiving unit that is arranged on a first surface of the base material. The solar cell holding member is fixedly attached to a second surface of the base material. The light-transmissive character plate is arranged on a timepiece front side of the solar cell. The ground plate is arranged on a back surface of the solar cell. The ring-shaped calendar wheel is disposed between the character plate and the ground plate. The solar cell holding member is arranged on a character plate side of the calendar wheel to position the calendar wheel.

Abstract: A motor includes a vibrating plate having a projection part to be pressed against a driven member and a piezoelectric material provided on the vibrating plate, wherein a Young's modulus EL in the pressing direction of the vibrating plate and a Young's modulus ES in a direction crossing the pressing direction are different.

Abstract: To provide an electronic timepiece with a solar cell whereby a movement can be reduced in size and whereby a calendar function using a calendar wheel can be achieved, an electronic timepiece with a solar cell is provided with: a solar cell, a character plate, a ground plate arranged on a back surface of the solar cell, a ring-shaped date wheel arranged between the character plate and the ground plate, and a circuit board electrically connected to an electrode of the solar cell via a conduction spring. The conduction spring is arranged on the inside of the date wheel when in plan view seen from the character plate side. In comparison to a case where a conduction spring is provided to the outside of a date wheel, the movement can be reduced in size, and because the date wheel can be arranged, a calendar function can be achieved.

Abstract: An electronic device is equipped with power generating means (unit), a secondary battery, a device, charging detection means (unit), battery voltage detection means (unit), and a time display control means (unit). The time display control means (unit) is equipped with an operation suspension portion, an operation resumption portion, a timer, a persistence display control portion and a timer updating portion. The timer updating portion updates the remaining time of the timer to the persistence time according to the detected voltage detected by the battery voltage detection means (unit) is longer than the remaining time, and operates the timer in operation as it is when the persistence time according to the detected voltage is equal to or less than the remaining time of the timer in operation.

Abstract: A motor includes a vibrating plate having a projection part to be pressed against a driven member and a piezoelectric material provided on the vibrating plate, wherein a Young's modulus EL in the pressing direction of the vibrating plate and a Young's modulus ES in a direction crossing the pressing direction are different.

Abstract: A motor includes a vibrating plate having a projection part to be pressed against a driven member and a piezoelectric material provided on the vibrating plate, wherein a Young's modulus EL in the pressing direction of the vibrating plate and a Young's modulus ES in a direction crossing the pressing direction are different.

Abstract: A motor includes a vibrating plate having a projection part to be pressed against a driven member and a piezoelectric material provided on the vibrating plate, wherein a Young's modulus EL in the pressing direction of the vibrating plate and a Young's modulus ES in a direction crossing the pressing direction are different.

Abstract: A generally diamond-shaped detection electrode is formed in the approximate center of the piezoelectric element. The strain resulting from the bending secondary vibration mode in the vicinity of the detection electrode is minimized because the detection electrode is formed in such a manner as to include a vibrational node of the longitudinal primary vibrational mode and a vibrational node of the bending secondary vibrational mode. As a result, when the phase difference between the drive signal and the detection signal is detected, the effect of vibration in the bending secondary vibration mode on the detected phase difference can be suppressed and a single drive frequency can be determined with respect to a prescribed phase difference. Thus, the drive performance of the vibrating body with respect to a driven body (i.e.