Abstract: Power consumption due to failed automatic calibration is suppressed. An electronic watch is provided with a magnetic sensor, a processor for performing calibration of the magnetic sensor and controlling two or more function modes, and an acceleration sensor for sensing movement of a user. The processor determines whether a state of movement sensed by the acceleration sensor is a calibratable state in which calibration of the magnetic sensor can be performed, performs discrimination of a function mode being executed among the two or more function modes, and performs the calibration of the magnetic sensor when (i) the state of movement sensed by the acceleration sensor is the calibratable state and (ii) the function mode is not a non-default mode, the non-default mode being a function mode executed in accordance with an operation by the user.

Abstract: The present disclosure provides as electronic device, a calibration method, and a program, which can suppress the power consumed by calibration of a geomagnetic sensor while maintaining high convenience. The electronic device operable in a plurality of types of usage modes including an activity mode associated with a predetermined activity, includes: a geomagnetic sensor that detects geomagnetic data; one or more processors; and one or more memories storing a program to be executed by the one or more processors. The program causes the one or more processors to perform the following: starting calibration of the geomagnetic sensor when it is determined. that the electronic device is operating in the usage mode of the activity mode associated with the predetermined activity.

Abstract: An electronic device includes a biometric detection value acquirer to acquire a biometric detection value for calculation of biometric information of a wearer of the electronic device and a processor, in which the processor estimates a change trend of information related to an action detail of the wearer and, based on the estimated change trend of information related to an action detail, selects an algorithm to calculate the biometric information from the biometric detection value.

Abstract: An electronic device includes a first outputter and a processor. The processor is configured to acquire biometric information that is information about a living body, calculate a reliability of the biometric information based on the acquired biometric information, and output the biometric information to the first outputter in an output mode associated with the calculated reliability.

Abstract: An electronic device includes a display to display information with a hand and at least one processor, in which the processor is configured to acquire the number of pulsations of a living body during a predetermined period and control the display to express a pulsation period based on the acquired number of pulsations of the living body with the hand.

Abstract: In the case where a ticking timing of a clock unit changes, a CPU of an electronic timepiece outputs a synchronization request signal to a CPU of a display module at the next ticking timing after the change so as to request resynchronization. Each time a timer circuit counts a prescribed number of pulses in a clock signal generated by a clock generation circuit on the basis of the ticking timing, the CPU of the display module instructs a liquid crystal driver circuit to invert the polarity of an AC voltage to be applied to a liquid crystal panel. Moreover, upon receiving the synchronization request signal from the CPU of the electronic timepiece, the CPU of the display module sets the timer circuit to start a new count of the clock.

Abstract: A hand driving device includes first to third stepping motors, a driving circuit, a magnetic sensor, and at least one processor. The first to third stepping motors move hands. The driving circuit drives the first to third stepping motors. The processor controls a magnetic sensor, based on movement of the first to third stepping motors, determines whether or not the driving circuit has rotated the stepping motors while the magnetic sensor does not perform measurement, and, when determining that the motors have not rotated, makes the magnetic sensor start measurement.

Abstract: Power consumption due to failed automatic calibration is suppressed. An electronic watch is provided with a magnetic sensor, a processor for performing calibration of the magnetic sensor and controlling two or more function modes, and an acceleration sensor for sensing movement of a user. The processor determines whether a state of movement sensed by the acceleration sensor is a calibratable state in which calibration of the magnetic sensor can be performed, performs discrimination of a function mode being executed among the two or more function modes, and performs the calibration of the magnetic sensor when (i) the state of movement sensed by the acceleration sensor is the calibratable state and (ii) the function mode is not a non-default mode, the non-default mode being a function mode executed in accordance with an operation by the user.

Abstract: In the case where a ticking timing of a clock unit changes, a CPU of an electronic timepiece outputs a synchronization request signal to a CPU of a display module at the next ticking timing after the change so as to request resynchronization. Each time a timer circuit counts a prescribed number of pulses in a clock signal generated by a clock generation circuit on the basis of the ticking timing, the CPU of the display module instructs a liquid crystal driver circuit to invert the polarity of an AC voltage to be applied to a liquid crystal panel. Moreover, upon receiving the synchronization request signal from the CPU of the electronic timepiece, the CPU of the display module sets the timer circuit to start a new count of the clock.

Abstract: An electronic timepiece includes a turnable hand and a processor that controls a turn of the hand. When the processor performs a rapid shift of the hand to a set target position, the processor performs a control of a damping of reciprocation of the hand in which the hand performs a predetermined reciprocation about the target position as a reference position and gradually decreases an amplitude of the reciprocation thereof during the rapid shift.

Abstract: An electronic watch includes a liquid crystal driver to drive a liquid crystal panel in which a plurality of pixels are arranged, and a CPU to control the liquid crystal driver. The CPU instructs the liquid crystal driver to output image data to the pixels. The CPU instructs the liquid crystal driver to output AC voltage while reversing the polarity of the AC voltage in predetermined cycles to be applied to display elements included in the respective pixels. When a timing of reversing the polarity is within a period of output of the image data, the CPU delays the timing until after the period.

Abstract: A warning notification device includes a sensor, a notification unit, and a processor. The processor is configured to calculate a water depth from an output of the sensor every predetermined time and to calculate a surfacing amount from a change in the calculated water depth every predetermined time. When a long-term surfacing speed condition, which is to be determined on the basis of the surfacing amounts of a first number, is satisfied or when a short-term surfacing speed condition, which is to be determined on the basis of the recent surfacing amounts of a second number smaller than the first number, is satisfied, the processor enables the notification unit to issue a warning of a surfacing operation.

Abstract: A warning notification device includes a sensor, a notification unit, and a processor. The processor is configured to calculate a water depth from an output of the sensor every predetermined time and to calculate a surfacing amount from a change in the calculated water depth every predetermined time. When a long-term surfacing speed condition, which is to be determined on the basis of the surfacing amounts of a first number, is satisfied or when a short-term surfacing speed condition, which is to be determined on the basis of the recent surfacing amounts of a second number smaller than the first number, is satisfied, the processor enables the notification unit to issue a warning of a surfacing operation.

Abstract: An electronic timepiece includes a turnable hand and a processor that controls a turn of the hand. When the processor performs a rapid shift of the hand to a set target position, the processor performs a control of a damping of reciprocation of the hand in which the hand performs a predetermined reciprocation about the target position as a reference position and gradually decreases an amplitude of the reciprocation thereof during the rapid shift.