Electronic timepiece, wireless device, wireless communication system, time correction method, and non-transitory recording medium
AssigneeCasio Computer Co., Ltd.
InventorKazuho KYOU
Life of this patent
Estimating the term…
Abstract
Time is appropriately corrected without needlessly consuming power. In step S101 and step S102, a CPU of an electronic timepiece determines whether to correct a time measured by a timekeeping circuit. Then, when a determination is made to correct the time measured by the timekeeping circuit, in step S111 and step S112, the time measured by the timekeeping circuit is corrected on the basis of time information held by a wireless device.
Claims19
An electronic timepiece, comprising:
- a receiver that communicates wirelessly with a wireless device, and that receives time information from the wireless device;
- a timekeeping circuit that measures time;
- and
- at least one processor,
- wherein
- the processor is configured to execute
- a determination operation in which, when a communication connection with the wireless device is established via the receiver, a determination is made whether correction of the time measured by the timekeeping circuit is needed, and
- a correction operation in which, when, in the determination operation, a determination is made that correction of the time measured by the timekeeping circuit is needed, the time measured by the timekeeping circuit is corrected based on the time information acquired from the wireless device and, when, in the determination operation, a determination is not made that correction of the time measured by the timekeeping circuit is needed, the time measured by the timekeeping circuit is not corrected.
An electronic timepiece, comprising:
- a receiver that communicates wirelessly with a wireless device, and that receives time information from the wireless device;
- a timekeeping circuit that measures time;
- and
- a processor,
- wherein
- the processor is configured to execute
- a determination operation in which, after a communication connection with the wireless device is established via the receiver, when a signal from the wireless device inquiring whether time correction is needed is received, a determination is made whether correction of the time measured by the timekeeping circuit is needed, and
- a correction operation in which, when, in the determination operation, a determination is made that correction of the time measured by the timekeeping circuit is needed, the time measured by the timekeeping circuit is corrected based on the time information acquired from the wireless device and, when, in the determination operation, a determination is not made that correction of the time measured by the timekeeping circuit is needed, the time measured by the timekeeping circuit is not corrected.
A wireless device, comprising:
- a communicator that communicates wirelessly with an electronic timepiece;
- and
- at least one processor,
- wherein
- the processor is configured to execute
- a determination operation in which, when a communication connection with the electronic timepiece is established via the communicator, a determination is made whether to transmit time information to the electronic timepiece, and
- a transmission operation in which, when, in the determination operation, a determination is made to transmit the time information to the electronic timepiece, the time information is transmitted to the electronic timepiece via the communicator.
A wireless communication system, comprising:
- an electronic timepiece and a wireless device that are capable of wirelessly communicating with each other, wherein
- when a communication connection is established between the electronic timepiece and the wireless device, a determination is made whether to correct time information held by the electronic timepiece and, if a determination is made to correct the time information held by the electronic timepiece, correct, based on time information held by the wireless device, the time information held by the electronic timepiece.
A time correction method executed by an electronic timepiece that communicates wirelessly with a wireless device and that includes a receiver that receives time information from the wireless device, and a timekeeping circuit that measures a time, the method comprising:
- determining whether to correct the time measured by the timekeeping circuit when a communication connection with the wireless device is established via the receiver, and
- correcting, based on the time information acquired from the wireless device, the time measured by the timekeeping circuit when a determination is made to correct the time measured by the timekeeping circuit, and not correcting the time measured by the timekeeping circuit when a determination is not made to correct the time measured by the timekeeping circuit.
A non-transitory recording medium that stores a program for causing a computer of an electronic timepiece that communicates wirelessly with a wireless device and that includes a receiver that receives time information from the wireless device, and a timekeeping circuit that measures a time, to:
- determine whether to correct the time measured by the timekeeping circuit when a communication connection with the wireless device is established via the receiver;
- and
- when a determination is made to correct the time measured by the timekeeping circuit, correct, based on the time information acquired from the wireless device, the time measured by the timekeeping circuit, and when a determination is not made to correct of the time measured by the timekeeping circuit is needed, not correct the time measured by the timekeeping circuit.
Dependencies are inferred from the claim text.