Electronic timepiece, communication system and storage medium

Patent metadata

Field	Value
Publication number	US-10054910-B2
Application number	US-201514980279-A
Country	US
Kind code	B2
Filing date	Dec 28, 2015
Priority date	Feb 24, 2015
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

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;
a timepiece-side communication unit that communicates with an external device, and acquires data including a setting position of a local time setting by the communication with the external device;
a timepiece-side storage unit that stores (i) a current position and (ii) daylight saving time implementation information at least at the current position; and
a processor that, when the setting position of the local time setting included in the data acquired by the communication with the external device does not match the current position stored in the timepiece-side storage unit, corrects the local time in correspondence to an implementation situation of daylight saving time at the setting position of the local time setting included in the data acquired by the communication with the external device, based on the daylight saving time implementation information,
wherein the processor 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.

2. The electronic timepiece according to claim 1 , wherein:
the processor further acquires date and time information from the external device; and
the processor corrects the local time which is 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 storage unit stores an implementation time period of daylight saving time, as the daylight saving time implementation information; and
the processor selects an implementation time period of the daylight saving time from the daylight saving time implementation information based on the setting position of the local time setting included in the data acquired by the communication with the external device, 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;
the timer unit counts a 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 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 (i) correcting the local time in correspondence with a setting as to whether to implement the daylight saving time set by an input operation on the operation unit and (ii) correcting 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.

7. The electronic timepiece according to claim 3 , further comprising:
an operation unit that receives a user input operation,
wherein:
the processor selects a switching setting of switching between (i) correcting the local time in correspondence with a setting as to whether to implement the daylight saving time set by an input operation on the operation unit and (ii) correcting 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 setting position of the local time setting included in the data acquired by the communication with the external device matches the current position stored in the timepiece-side storage unit and when the 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 and an electronic device, the electronic timepiece and the electronic device being capable of communicating with each other,
the electronic timepiece comprising:
a timer unit that counts local time;
a timepiece-side communication unit that communicates with the electronic device, and that acquires data including a setting position of a local time setting based on the communication with the electronic device;
a timepiece-side storage unit that stores (i) a current position, and (ii) daylight saving time implementation information at least at the current position; and
a processor that, when the setting position of the local time setting included in the data acquired by the communication with the electronic device does not match the current position stored in the timepiece-side storage unit, corrects the local time in correspondence to an implementation situation of daylight saving time at the setting position of the local time setting included in the data acquired by the communication with the electronic device, based on the daylight saving time implementation information,

wherein the processor 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 communication unit;
a device-side 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 setting position by referring to the daylight saving time implementation information stored in the device-side 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 storage unit matches the daylight saving time implementation information stored in the device-side storage unit; and
when the processor of the electronic device determines that the daylight saving time implementation information stored in the timepiece-side storage unit does not match the daylight saving time implementation information stored in the device-side storage unit, the processor of the electronic device transmits, as the update information, the daylight saving time implementation information at least at the setting position to the electronic timepiece through the device-side communication unit.

10. A non-transitory storage medium storing a program executable by a computer comprising a device-side communication unit which communicates with an electronic timepiece, the program, when executed by the computer, causing the computer to perform operations comprising:
storing (i) a current position as a setting position, (ii) daylight saving time implementation information, the daylight saving time implementation information including an implementation time period of daylight saving time, and (iii) a local time setting including a time zone including the setting position and the daylight saving time implementation information at the setting position; and
transmitting by the device-side communication unit, as update information, the current position stored as the setting position and the local time setting.

Assignees

• Casio Computer Co Ltd

Inventors

• Nagareda Hirofumi

Classifications

• G04R20/30

  Decoding time data; Circuits therefor · CPC title

• 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

• G04R20/14

  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