A method for time synchronization in a vehicle may include transmitting, by a satellite navigation device to a controller and at least one LiDAR device, a UTC and a PPS signal. The satellite navigation device may have a first clock. The method may include synchronizing, by the controller, a second clock of the controller with the first clock of the satellite navigation device based on the PPS signal and the UTC. The method may include synchronizing, by the at least one LiDAR device, a third clock of the at least one LiDAR device with the first clock of the satellite navigation device based on the PPS signal and the UTC. The method may include synchronizing, by at least one camera, a fourth clock of the at least one camera with the second clock of the controller.

A method for time synchronization in a vehicle may include transmitting, by a satellite navigation device to a controller and at least one LiDAR device, a UTC and a PPS signal. The satellite navigation device may have a first clock. The method may include synchronizing, by the controller, a second clock of the controller with the first clock of the satellite navigation device based on the PPS signal and the UTC. The method may include synchronizing, by the at least one LiDAR device, a third clock of the at least one LiDAR device with the first clock of the satellite navigation device based on the PPS signal and the UTC. The method may include synchronizing, by at least one camera, a fourth clock of the at least one camera with the second clock of the controller.

A satellite radio wave receiving device including: one or more controllers configured to: continually perform calculation of a current location based on radio waves from positioning satellites received by a receiver; determine whether an action state of the satellite radio wave receiving device detected by an action detection sensor has changed to a stop state; in response to determining that the action state of the satellite radio wave receiving device has changed to the stop state, interrupt the calculation of the current location by causing the receiver to interrupt reception of the radio waves; and cause an output device to perform an interruption notification operation for notifying that the calculation of the current location is being interrupted.

A satellite radio wave receiving device including: one or more controllers configured to: continually perform calculation of a current location based on radio waves from positioning satellites received by a receiver; determine whether an action state of the satellite radio wave receiving device detected by an action detection sensor has changed to a stop state; in response to determining that the action state of the satellite radio wave receiving device has changed to the stop state, interrupt the calculation of the current location by causing the receiver to interrupt reception of the radio waves; and cause an output device to perform an interruption notification operation for notifying that the calculation of the current location is being interrupted.

A watch includes an hour hand having a first conductive portion and rotating about an hour hand shaft, a seconds hand having a second conductive portion and rotating at a rotational speed faster than that of the hour hand about a seconds hand shaft, which is coaxial with the hour hand shaft, and a planar inverted-F antenna disposed, in plan view viewed from a direction parallel to the hour hand shaft, at a position overlapping a rotation range of the first conductive portion and a rotation range of the second conductive portion, and receiving a radio wave, and when the planar inverted-F antenna receives a radio wave, a controller, after rotating the seconds hand and then stopping the seconds hand at a reception indication position, rotates the hour hand such that the first conductive portion and the second conductive portion overlap each other in the plan view.

A watch includes an hour hand having a first conductive portion and rotating about an hour hand shaft, a seconds hand having a second conductive portion and rotating at a rotational speed faster than that of the hour hand about a seconds hand shaft, which is coaxial with the hour hand shaft, and a planar inverted-F antenna disposed, in plan view viewed from a direction parallel to the hour hand shaft, at a position overlapping a rotation range of the first conductive portion and a rotation range of the second conductive portion, and receiving a radio wave, and when the planar inverted-F antenna receives a radio wave, a controller, after rotating the seconds hand and then stopping the seconds hand at a reception indication position, rotates the hour hand such that the first conductive portion and the second conductive portion overlap each other in the plan view.

In some implementations, a device may receive, via a universal serial bus (USB) interface, configuration information and a supply of power from a network device. The device may receive, via an antenna that is external to the device, a first signal indicating timing information. The device may generate, based on the first signal, a second signal and a third signal, wherein the second signal comprises a one pulse per second signal and the third signal comprises a ten-megahertz signal. The device may provide, to the network device, the second signal and the third signal. The device may receive, via an input port, a clock signal to provide an extended holdover functionality to the network device.

In some implementations, a device may receive, via a universal serial bus (USB) interface, configuration information and a supply of power from a network device. The device may receive, via an antenna that is external to the device, a first signal indicating timing information. The device may generate, based on the first signal, a second signal and a third signal, wherein the second signal comprises a one pulse per second signal and the third signal comprises a ten-megahertz signal. The device may provide, to the network device, the second signal and the third signal. The device may receive, via an input port, a clock signal to provide an extended holdover functionality to the network device.

In some implementations, a device may receive, via a universal serial bus (USB) interface, configuration information and a supply of power from a network device. The device may receive, via an antenna that is external to the device, a first signal indicating timing information. The device may generate, based on the first signal, a second signal and a third signal, wherein the second signal comprises a one pulse per second signal and the third signal comprises a ten-megahertz signal. The device may provide, to the network device, the second signal and the third signal. The device may receive, via an input port, a clock signal to provide an extended holdover functionality to the network device.

In some implementations, a device may receive, via a universal serial bus (USB) interface, configuration information and a supply of power from a network device. The device may receive, via an antenna that is external to the device, a first signal indicating timing information. The device may generate, based on the first signal, a second signal and a third signal, wherein the second signal comprises a one pulse per second signal and the third signal comprises a ten-megahertz signal. The device may provide, to the network device, the second signal and the third signal. The device may receive, via an input port, a clock signal to provide an extended holdover functionality to the network device.