An electronic timepiece includes a storage that stores specific-region DST application rule information and local time information that includes, in association with each other, DST application rules for each region and standard-wave transmitting station information indicating each station transmitting standard waves receivable in the region; a processor that controls clock time to be kept by a clock circuit and displays time to be displayed on a display; and a standard wave receiver that receives standard waves and obtains time information. The processor calibrates the clock time based on the time information indicated by the standard waves received by the standard wave receiver, and controls the display time based on whether the specific-region DST application rule information and the DST application rule information associated with the standard-wave transmitting station information indicating a station transmitting the received standard waves satisfy a predetermined condition.

An electronic timepiece includes a storage that stores specific-region DST application rule information and local time information that includes, in association with each other, DST application rules for each region and standard-wave transmitting station information indicating each station transmitting standard waves receivable in the region; a processor that controls clock time to be kept by a clock circuit and displays time to be displayed on a display; and a standard wave receiver that receives standard waves and obtains time information. The processor calibrates the clock time based on the time information indicated by the standard waves received by the standard wave receiver, and controls the display time based on whether the specific-region DST application rule information and the DST application rule information associated with the standard-wave transmitting station information indicating a station transmitting the received standard waves satisfy a predetermined condition.

A band-type electronic apparatus includes a band-shaped body configured to be attached to and detached from a user, a display that is contained in the body and displays information, and a first communicator that is contained in the body on an opposite side of the user via the display, with the body being attached to the user, and performs a short distance wireless communication.

A wearable device is used to authenticate a user into a user account at a user device of the user. In particular, the wearable device may include a sensor configured to detect whether the wearable device is worn by or is with the user. If so, the wearable device may send a signal to the user device and the user device may authenticate the user based on the signal received from the wearable device. For example, when the sensor detects that the wearable device is worn by the user, the wearable device may send a unique signal periodically, such as every five seconds or every 10 seconds. Based on whether the unique signal from the wearable device is received, the user device may authenticate the user.

A time synchronization system includes a first wireless device and a second wireless device. A wireless unit of the first wireless device wirelessly transmits timing information and time information separately, the time information being acquired from a first clock and relating to a transmission time when the timing information was transmitted. A wireless unit of the second wireless device receives the wirelessly transmitted timing information and time information separately. A correction unit of the second wireless device corrects s a second clock on the basis of a reference time indicated by the second clock at a time when the wireless unit received the timing information, and a transmission time obtained from the time information.

A time synchronization system includes a first wireless device and a second wireless device. A wireless unit of the first wireless device wirelessly transmits timing information and time information separately, the time information being acquired from a first clock and relating to a transmission time when the timing information was transmitted. A wireless unit of the second wireless device receives the wirelessly transmitted timing information and time information separately. A correction unit of the second wireless device corrects s a second clock on the basis of a reference time indicated by the second clock at a time when the wireless unit received the timing information, and a transmission time obtained from the time information.

Plural communication apparatuses connected via communication are synchronized while flexibly coping with a change in the communication state.

A clock time management section manages a clock time. A clock time measurement section measures a clock time of another clock time management section of another apparatus and a clock time of the clock time management section of this apparatus for every predetermined processing, in the course of communication with the other apparatus having the other clock time management section. A clock time difference generation section generates a clock time difference between the clock time of the other clock time management section and the clock time of the clock time management section on the basis of the measured clock times. A clock time correction instruction section instructs the other apparatus to correct the clock time of the other clock time management section on the basis of the generated clock time difference.

Provided is an antenna reception device including an antenna, a board including three or more electrodes, and two connectors that respectively connect two of the electrodes to the antenna. The electrodes include a first electrode that is connected to a ground and a second electrode that is connected to a feed point. The board includes a first signal line between the ground and the first electrode and a second signal line between the feed point and the second electrode. The electrodes include two or more first electrodes and/or two or more second electrodes, and the board includes two or more respective first signal lines with different lengths and/or two or more respective second signal lines with different lengths.

A vehicular apparatus operates a plurality of operating systems concurrently on a single hardware module. Each operating system is operated based on a corresponding own clock function holding a time. The vehicular apparatus is provided with a synchronization unit for synchronizing the times of the respective operating systems by issuing, to each operating system, a notification indicating a change in the time made in one operating system.

A method for setting an electronic watch including a near-field communication module and a microcontroller configured to exchange electric signals with this module, the method including: establishing a near-field connection between the electronic appliance and the watch; verifying, by way of the microcontroller of the electronic appliance, the accuracy of a datum indicating the clock state of the watch; sending, to the near-field communication module of the watch, by way of the near-field communication device and when instructed to do so by the microcontroller of the electronic appliance, at least one watch setting instruction when the clock state datum is inaccurate; processing said at least one instruction received by means of the microcontroller of the watch, in order to generate watch setting parameters; and configuring the watch when instructed to do so by the microcontroller of the watch, according to the setting parameters generated.