Abstract: An electronic watch includes a navigation processor that perform navigation processing of causing a positioning processor to perform positioning processing, and calculating a distance to a destination based on current position information acquired by the positioning processing and destination position information, and also calculating a direction of the destination based on current position information, geomagnetism, and destination position information, and moreover causing a display unit to display the direction of the destination, and an operation device configured to case the navigation processor to start navigation processing when a predetermined operation is performed.

Abstract: An electronic timepiece includes a detection axis calibration unit configured to execute first calibration processing of calibrating an axial direction and second calibration processing of calibrating a direction along a third detection axis, the second calibrating processing being executed after first calibration processing, a mode setting unit configured to set a first measurement mode when second calibration processing is not completed after completion of the first calibration processing, and set a second measurement mode when the second calibration processing is completed, a first azimuth calculation unit configured to calculate an azimuth, based on detected values of a three-axis magnetic sensor in two axial directions, when the first measurement mode is set, and a second azimuth calculation unit configured to calculate an azimuth, based on detected values of the three-axis magnetic sensor in three axial directions and a detected value of a inclination sensor, when the second measurement mode is set.

Abstract: An electronic watch includes a display surface, a magnetic sensor including a first detection axis and a second detection axis orthogonal to the first detection axis, with the first detection axis and the second detection axis being disposed in a plane parallel to the display surface, a correction unit configured to correct an error due to an offset magnetic field included in a detection value of the magnetic sensor, a calculation unit configured to calculate a bearing and magnetic intensity, based on a value acquired by correcting the detection value by the correction unit, and a display unit configured to cause the display surface to display the bearing and the magnetic intensity that are calculated by the calculation unit to be displayed.

Abstract: An electronic timepiece is provided that executes navigation to a destination site. The timepiece includes a display unit, a magnetic sensor, a reception unit that receives time information indicating a time from a GPS satellite, a storage unit that stores orbit information indicating an orbit of the GPS satellite, and a control unit that generates positional information indicating a position of the electronic timepiece using the time information received by the reception unit and the orbit information stored in the storage unit and executes the navigation using the display unit based on the positional information, an output of the magnetic sensor, and destination site information indicating a position of the destination site. When the orbit information is stored in the storage unit and then a first predetermined time equal to or less than a valid period of the orbit information elapses, the control unit updates the orbit information stored in the storage unit.

Abstract: An electronic watch includes a first hand that is rotated by a first motor, and indicates a higher digit of numerical information or time information, a second hand that is rotated by a second motor, and indicates a lower digit of the numerical information or the time information, and a motor controller. The motor controller performes a numerical value indication mode for driving the first motor and the second motor simultaneously to indicate an increase or decrease in the numerical information, or time correction mode for driving the first motor and the second motor simultaneously to correct the time information, and in the numerical value indication mode or the time correction mode, controls a drive frequency of the first motor and a drive frequency of the second motor such that angular velocity of hand movement of the first hand is less than angular velocity of hand movement of the second hand.

Abstract: An electronic timepiece includes an indicating hand, a distance display hand, a GPS receiver that receives satellite signals transmitted from GPS satellites, a magnetic sensor, and a controller. The controller determines the direction to a destination on the basis of the satellite signals received by the GPS receiver, the output from the magnetic sensor, and destination information representing the position of the destination, determines the distance to the destination on the basis of the satellite signals and the destination information, causes the indicating hand to indicate the direction to the destination, and causes the distance display hand to display the distance to the destination.

Abstract: An electronic timepiece includes a detection axis calibration unit configured to execute first calibration processing of calibrating an axial direction and second calibration processing of calibrating a direction along a third detection axis, the second calibrating processing being executed after first calibration processing, a mode setting unit configured to set a first measurement mode when second calibration processing is not completed after completion of the first calibration processing, and set a second measurement mode when the second calibration processing is completed, a first azimuth calculation unit configured to calculate an azimuth, based on detected values of a three-axis magnetic sensor in two axial directions, when the first measurement mode is set, and a second azimuth calculation unit configured to calculate an azimuth, based on detected values of the three-axis magnetic sensor in three axial directions and a detected value of a inclination sensor, when the second measurement mode is set.

Abstract: An electronic watch includes a display surface, a magnetic sensor including a first detection axis and a second detection axis orthogonal to the first detection axis, with the first detection axis and the second detection axis being disposed in a plane parallel to the display surface, a correction unit configured to correct an error due to an offset magnetic field included in a detection value of the magnetic sensor, a calculation unit configured to calculate a bearing and magnetic intensity, based on a value acquired by correcting the detection value by the correction unit, and a display unit configured to cause the display surface to display the bearing and the magnetic intensity that are calculated by the calculation unit to be displayed.

Abstract: An electronic watch includes a navigation processor that perform navigation processing of causing a positioning processor to perform positioning processing, and calculating a distance to a destination based on current position information acquired by the positioning processing and destination position information, and also calculating a direction of the destination based on current position information, geomagnetism, and destination position information, and moreover causing a display unit to display the direction of the destination, and an operation device configured to case the navigation processor to start navigation processing when a predetermined operation is performed.

Abstract: An electronic watch includes a pointer, a receiver (GPS receiver) configured to receive positional identification information for identifying a current location, a magnetic sensor, and a controller configured to acquire destination information indicating a position of a destination, identify a direction of the destination, based on the positional identification information, an output of the magnetic sensor, and the destination information, identify a distance to the destination, based on the positional identification information and the destination information, and display a direction of the destination with the pointer. The controller switches the pointer to a set hand movement operation when the identified distance a threshold value.

Abstract: An electronic timepiece is provided that executes navigation to a destination site. The timepiece includes a display unit, a magnetic sensor, a reception unit that receives time information indicating a time from a GPS satellite, a storage unit that stores orbit information indicating an orbit of the GPS satellite, and a control unit that generates positional information indicating a position of the electronic timepiece using the time information received by the reception unit and the orbit information stored in the storage unit and executes the navigation using the display unit based on the positional information, an output of the magnetic sensor, and destination site information indicating a position of the destination site. When the orbit information is stored in the storage unit and then a first predetermined time equal to or less than a valid period of the orbit information elapses, the control unit updates the orbit information stored in the storage unit.

Abstract: An electronic timepiece includes a pointing hand, a distance display hand, a magnetic sensor, a GPS receiver receiving GPS time information from a GPS satellite, a storage unit storing ephemeris data of the GPS satellite, and a control unit generating positional information of the electronic timepiece using the GPS time information received by the GPS receiver and the ephemeris data stored in the storage unit and executing navigation using the pointing hand and the distance display hand based on the positional information, an output of the magnetic sensor, and destination site information. When the ephemeris data is stored in the storage unit and then a first predetermined time equal to or less than a valid period of the ephemeris data elapses, the control unit receives the ephemeris data using the GPS receiver and updates the ephemeris data stored in the storage unit to ephemeris data received using the GPS receiver.

Abstract: An electronic timepiece includes a magnetic sensor that serves as a magnetic detection unit, a GPS reception unit that serves as a reception unit receiving positional information of a current position, a time zone setting unit that sets a time zone, a specifying unit that specifies a declination angle based on the positional information of the current position, a decision unit that decides a direction of a due north based on an output of the magnetic sensor and a declination angle, and an azimuth display unit that displays the direction of the due north decided by the decision unit.

Abstract: An electronic timepiece includes an indicating hand, a distance display hand, a GPS receiver that receives satellite signals transmitted from GPS satellites, a magnetic sensor, and a controller. The controller determines the direction to a destination on the basis of the satellite signals received by the GPS receiver, the output from the magnetic sensor, and destination information representing the position of the destination, determines the distance to the destination on the basis of the satellite signals and the destination information, causes the indicating hand to indicate the direction to the destination, and causes the distance display hand to display the distance to the destination.

Abstract: An electronic timepiece includes an indicating hand, a distance display hand, a GPS receiver that receives satellite signals transmitted from GPS satellites, a magnetic sensor, and a controller. The controller determines the direction to a destination on the basis of the satellite signals received by the GPS receiver, the output from the magnetic sensor, and destination information representing the position of the destination, determines the distance to the destination on the basis of the satellite signals and the destination information, causes the indicating hand to indicate the direction to the destination, and causes the distance display hand to display the distance to the destination.

Abstract: An electronic timepiece that has a plurality of operation modes and uses a secondary battery as a power supply includes a 2 o'clock side information display unit that displays a residual quantity of the secondary battery, a navigation start switch that receives a user manipulation, and a control unit that decides an execution operation mode to be executed by the electronic timepiece among the plurality of operation modes according to the user manipulation received by the navigation start switch and switches display of a residual quantity of a battery in the 2 o'clock side information display unit according to the execution operation mode.

Abstract: An electronic timepiece includes a mode setter that sets an azimuth mode in which the azimuth is measured and displayed, at least one indicating hand that operates when the azimuth mode is set, markings at which the indicating hand points, a stepper motor including a rotor, a wheel train that moves the indicating hand in synchronization with the rotor, a magnetism sensor, and an azimuth measurer that measures magnetism with the magnetism sensor when the azimuth mode is set and acquires the azimuth based on the measured magnetism information. The reduction ratio of the wheel train is so set that the indicating hand moves by the distance corresponding to one marking when the rotor makes N turns, where N is an integer greater than or equal to 1, and the azimuth measurer measures the magnetism during the period for which the indicating hand stationarily points at any of the markings.

Abstract: An electronic timepiece includes a magnetic sensor that serves as a magnetic detection unit, a GPS reception unit that serves as a reception unit receiving positional information of a current position, a time zone setting unit that sets a time zone, a specifying unit that specifies a declination angle based on the positional information of the current position, a decision unit that decides a direction of a due north based on an output of the magnetic sensor and a declination angle, and an azimuth display unit that displays the direction of the due north decided by the decision unit.

Abstract: An electronic timepiece that has a plurality of operation modes and uses a secondary battery as a power supply includes a 2 o?clock side information display unit that displays a residual quantity of the secondary battery, a navigation start switch that receives a user manipulation, and a control unit that decides an execution operation mode to be executed by the electronic timepiece among the plurality of operation modes according to the user manipulation received by the navigation start switch and switches display of a residual quantity of a battery in the 2 o?clock side information display unit according to the execution operation mode.

Abstract: An electronic timepiece includes a pointing hand, a distance display hand, a magnetic sensor, a GPS receiver receiving GPS time information from a GPS satellite, a storage unit storing ephemeris data of the GPS satellite, and a control unit generating positional information of the electronic timepiece using the GPS time information received by the GPS receiver and the ephemeris data stored in the storage unit and executing navigation using the pointing hand and the distance display hand based on the positional information, an output of the magnetic sensor, and destination site information. When the ephemeris data is stored in the storage unit and then a first predetermined time equal to or less than a valid period of the ephemeris data elapses, the control unit receives the ephemeris data using the GPS receiver and updates the ephemeris data stored in the storage unit to ephemeris data received using the GPS receiver.