Electronic timepiece, communication system and storage medium

Patent metadata

Field	Value
Publication number	US-2016246264-A1
Application number	US-201514980279-A
Country	US
Kind code	A1
Filing date	Dec 28, 2015
Priority date	Feb 24, 2015
Publication date	Aug 25, 2016
Grant date	—

Abstract

An electronic timepiece includes a timer unit, a timepiece-side communication unit, a timepiece-side daylight saving time information storage unit and a processor. The timer unit counts local time at a current position. The timepiece-side communication unit communicates with an external device. The timepiece-side daylight saving time information storage unit stores daylight saving time implementation information therein at least at the current position. The processor corrects the local time in correspondence to an implementation situation of daylight saving time at the current position, based on the daylight saving time implementation information, acquires update information of the daylight saving time implementation information from the external device through the timepiece-side communication unit and reflects the acquired update information in the daylight saving time implementation information.

First claim

What is claimed is:

1 . An electronic timepiece comprising:
a timer unit that counts local time at a current position; a timepiece-side communication unit that communicates with an external device; a timepiece-side daylight saving time information storage unit that stores daylight saving time implementation information therein at least at the current position; and a processor that corrects the local time in correspondence to an implementation situation of daylight saving time at the current position, based on the daylight saving time implementation information, that acquires update information of the daylight saving time implementation information from the external device through the timepiece-side communication unit and that reflects the acquired update information in the daylight saving time implementation information.

2 . The electronic timepiece according to claim 1 , wherein:
the processor acquires date and time information and the update information from the external device; and the processor corrects the local time which is to be counted by the timer unit, based on the acquired date and time information.

3 . The electronic timepiece according to claim 1 , wherein:
the timepiece-side daylight saving time information storage unit stores an implementation time period of daylight saving time, as the daylight saving time implementation information; the processor acquires a local time setting which is related to counting of the local time at the current position, from the external device; and the processor selects an implementation time period of the daylight saving time at the current position from the daylight saving time implementation information based on the acquired local time setting and corrects the local time according to the selected implementation time period.

4 . The electronic timepiece according to claim 3 , wherein:
the processor acquires the update information together with the local time setting.

5 . The electronic timepiece according to claim 3 , wherein:
the local time setting includes information of a time zone to which the current position belongs; the timer unit counts reference date and time; and the timer unit calculates the local time based on a time difference from the reference date and time in the acquired the time zone.

6 . The electronic timepiece according to claim 1 , further comprising:
an operation unit that receives a user input operation, wherein: the processor selects a switching setting of switching between to correct the local time in correspondence to whether implementation of the daylight saving time set based on an input operation on the operation unit and to correct the local time in correspondence to an implementation situation of the daylight saving time at the current position obtained by using the daylight saving time implementation information.

7 . The electronic timepiece according to claim 3 , further comprising:
an operation unit that receives a user input operation, wherein: the local time setting includes information indicating the current position; the processor selects a switching setting of switching between to correct the local time in correspondence to whether implementation of the daylight saving time set based on an input operation on the operation unit and to correct the local time in correspondence to an implementation situation of the daylight saving time at the current position obtained by using the daylight saving time implementation information; when the acquired current position is different from a setting position set as a current position upon acquisition of the current position, the processor corrects the local time in correspondence to the implementation situation of the daylight saving time at the current position obtained by using the daylight saving time implementation information; and when the acquired current position matches the setting position and when a setting as to whether to implement the daylight saving time is set based on a user input operation, the processor corrects the local time in correspondence to the set setting as to whether to implement the daylight saving time.

8 . A communication system comprising an electronic timepiece including a timepiece-side communication unit and an electronic device including a device-side communication unit, the electronic timepiece and the electronic device being capable of communicating with each other through the timepiece-side communication unit and through the device-side communication unit,
the electronic timepiece comprising:
a timer unit that counts local time at a current position;
a timepiece-side daylight saving time information storage unit that stores daylight saving time implementation information therein at least at the current position; and
a processor that corrects the local time in correspondence to an implementation situation of daylight saving time at the current position, based on the daylight saving time implementation information, that acquires update information of the daylight saving time implementation information from the electronic device through the timepiece-side communication unit and that reflects the acquired update information in the daylight saving time implementation information, and the electronic device comprising:
a device-side daylight saving time information storage unit that stores an implementation time period of daylight saving time therein, as daylight saving time implementation information; and
a processor that transmits, as the update information, daylight saving time implementation information at least at the current position by referring the daylight saving time implementation information stored in the device-side daylight saving time information storage unit, to the electronic timepiece through the device-side communication unit.

9 . The communication system according to claim 8 , wherein:
the processor of the electronic device determines whether the daylight saving time implementation information stored in the timepiece-side daylight saving time information storage unit matches with corresponding information of the daylight saving time implementation information stored in the device-side daylight saving time information storage unit; and when the processor determines that the daylight saving time implementation information stored in the timepiece-side daylight saving time information storage unit does not match with the corresponding information of the daylight saving time implementation information stored in the device-side daylight saving time information storage unit, the processor of the electronic device transmits, as the update information, the daylight saving time implementation information at least at the current position to the electronic timepiece through the device-side communication unit.

10 . A non-transitory storage medium storing a program which causes a computer to perform processes, the computer comprising a device-side communication unit which communicates with an electronic timepiece and a device-side daylight saving time information storage unit which stores an implementation time period of daylight saving time therein as daylight saving time implementation information, wherein:
the computer causes the electronic timepiece to transmit, as update information, daylight saving time implementation information at least at a current position by referring the daylight saving time implementation information stored in the device-side daylight saving time information storage unit, through the device-side communication unit.

11 . The storage medium according to claim 10 , wherein:
the computer determines whether daylight saving time implementation information

Assignees

• Casio Computer Co Ltd
• Casio Computer Co Ltd

Inventors

• Nagareda Hirofumi

Classifications

• G04G9/0076

  in which the time in another time-zone or in another city can be displayed at will · CPC title

• G04G7/00

  Synchronisation (radio-controlled time-pieces G04R) · CPC title

• G04R20/30

  Decoding time data; Circuits therefor · CPC title

• G04R20/14

  the radio signal being a telecommunication standard signal, e.g. GSM · CPC title

• G04R20/26 Primary

  the radio signal being a near-field communication signal · CPC title