G04C9/08

Timepiece, timepiece system, and method of controlling timepiece
10838368 · 2020-11-17 · ·

There is provided a timepiece which includes a movable pointer, an acquisition unit which acquires information on a movable range corresponding to at least a portion of a movable range of the movable pointer and acquires information indicating a target position to which the pointer is to be moved, a control unit which compares the target position with the movable range and determines a movement direction of the pointer based on the comparison result, and a drive unit which drives the pointer in the determined movement direction.

Timepiece, timepiece system, and method of controlling timepiece
10838368 · 2020-11-17 · ·

There is provided a timepiece which includes a movable pointer, an acquisition unit which acquires information on a movable range corresponding to at least a portion of a movable range of the movable pointer and acquires information indicating a target position to which the pointer is to be moved, a control unit which compares the target position with the movable range and determines a movement direction of the pointer based on the comparison result, and a drive unit which drives the pointer in the determined movement direction.

Timepiece, motor control device, control method of timepiece, and motor control method
10831158 · 2020-11-10 · ·

A timepiece includes a motor control unit driving a motor for driving an indicating hand, based on an instruction signal, and a control unit receiving an instruction confirmation signal corresponding to a drive state of the motor in response to the instruction signal from the motor control unit, and determining whether or not the motor is driven in accordance with the instruction signal, based on the instruction confirmation signal.

Timepiece, motor control device, control method of timepiece, and motor control method
10831158 · 2020-11-10 · ·

A timepiece includes a motor control unit driving a motor for driving an indicating hand, based on an instruction signal, and a control unit receiving an instruction confirmation signal corresponding to a drive state of the motor in response to the instruction signal from the motor control unit, and determining whether or not the motor is driven in accordance with the instruction signal, based on the instruction confirmation signal.

Electronic Timepiece And Motor Control Circuit
20200310354 · 2020-10-01 ·

An electronic timepiece can prevent overrunning when driving a motor at a high speed. The electronic timepiece has a controller that controls a driver to an on state or an off state according to the current value detected by the current detector; a polarity changer that determines driving one step of the motor ended and changes the polarity of the drive current when the on time or off time is detected to meet a specific condition; and a drive period adjuster that sets the terminal supplying the drive current to the coil to a first state if the remaining drive step count is greater than the remaining count evaluation number, and if the remaining drive step count is less than or equal to the remaining count evaluation number, sets the terminal to a second state in which the brake force applied to the rotor is greater than in the first state.

Electronic Timepiece And Motor Control Circuit
20200310354 · 2020-10-01 ·

An electronic timepiece can prevent overrunning when driving a motor at a high speed. The electronic timepiece has a controller that controls a driver to an on state or an off state according to the current value detected by the current detector; a polarity changer that determines driving one step of the motor ended and changes the polarity of the drive current when the on time or off time is detected to meet a specific condition; and a drive period adjuster that sets the terminal supplying the drive current to the coil to a first state if the remaining drive step count is greater than the remaining count evaluation number, and if the remaining drive step count is less than or equal to the remaining count evaluation number, sets the terminal to a second state in which the brake force applied to the rotor is greater than in the first state.

Electronic device and timepiece

An electronic device and time piece are shown. The electronic device includes: a plurality of antenna devices; a plurality of motors; and antimagnetic plates, each fully or partially covering the motors and having cutouts at positions overlapping with the antenna devices.

Electronic device and timepiece

An electronic device and time piece are shown. The electronic device includes: a plurality of antenna devices; a plurality of motors; and antimagnetic plates, each fully or partially covering the motors and having cutouts at positions overlapping with the antenna devices.

ELECTRONIC TIMEPIECE AND INDICATOR POSITION DETECTION METHOD
20200117144 · 2020-04-16 ·

An electronic timepiece that shortens the time from starting to completing indicator position detection. The electronic timepiece 1 an indicator 11; an actuator 12 that drives the indicator 11; a light emitter 21; a photodetector 22 that detects light emitted from the light emitter 21 selectively when when the indicator 11 is at a reference position; and a control circuit 35 that executes a first mode to drive the indicator 11 continuously in one direction until the indicator 11 is detected while the light emitter 21 is emitting, and a second mode to alternately drive the indicator 11 and drive the light emitter 21 to emit to detect the indicator 11 at the reference position after the photodetector 22 detects light in the first mode and the indicator 11 has past the reference position.

ELECTRONIC TIMEPIECE AND INDICATOR POSITION DETECTION METHOD
20200117144 · 2020-04-16 ·

An electronic timepiece that shortens the time from starting to completing indicator position detection. The electronic timepiece 1 an indicator 11; an actuator 12 that drives the indicator 11; a light emitter 21; a photodetector 22 that detects light emitted from the light emitter 21 selectively when when the indicator 11 is at a reference position; and a control circuit 35 that executes a first mode to drive the indicator 11 continuously in one direction until the indicator 11 is detected while the light emitter 21 is emitting, and a second mode to alternately drive the indicator 11 and drive the light emitter 21 to emit to detect the indicator 11 at the reference position after the photodetector 22 detects light in the first mode and the indicator 11 has past the reference position.