Electronic timepiece, control method, and non-transitory recording medium

Patent metadata

Field	Value
Publication number	US-11269296-B2
Application number	US-201816142055-A
Country	US
Kind code	B2
Filing date	Sep 26, 2018
Priority date	Sep 27, 2017
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

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.

First claim

What is claimed is:

1. An electronic timepiece comprising:
a storage configured to store local time information and specific-region daylight-saving-time (DST) application rule information, wherein the local time information includes DST application rule information for each region and standard-wave transmitting station information in association with each other, the standard-wave transmitting station information indicating each station transmitting standard waves receivable in the region, and the specific-region DST application rule information indicates DST application rules for a specific region;
a clock circuit configured to keep time;
a display configured to display time;
a processor configured to control clock time to be kept by the clock circuit and display time to be displayed on the display; and
a standard wave receiver configured to receive the standard waves and obtain time information,
wherein the processor is configured to:
calibrate the clock time based on the time information indicated by the standard waves received by the standard wave receiver;
control the display time based on whether the DST application rule information and the specific-region DST application rule information satisfy a predetermined condition; and
in a case in which the DST application rule information matches the specific-region DST application rule information, determine that the predetermined condition is satisfied, and set the display time to be the same as the clock time after applying the DST application rule information to the clock time, and
wherein the DST application rule information is associated with the standard-wave transmitting station information in the local time information and the standard-wave transmitting station information indicates a station transmitting the standard waves received by the standard wave receiver.

2. The electronic timepiece according to claim 1 ,
wherein in a case in which the DST application rule information does not match the specific-region DST application rule information, the processor is configured to determine that the predetermined condition is not satisfied, and set the display time to be the same as the clock time without applying the DST application rule information to the clock time, and
wherein the DST application rule information is associated with the standard-wave transmitting station information in the local time information and the standard-wave transmitting station information indicates the station transmitting the standard waves received by the standard wave receiver.

3. The electronic timepiece according to claim 2 , further comprising:
an operation receiver configured to receive an operation of designating a time difference,
wherein the processor is configured to set the display time to be the same as the clock time after applying the time difference received by the operation receiver to the clock time, and store, as the specific-region DST application rule information, a specific value indicating that DST application rule information corresponding to the time difference is not specified.

4. The electronic timepiece according to claim 1 , further comprising:
an operation receiver configured to receive an operation of designating a time difference,
wherein the processor is configured to set the display time to be the same as the clock time after applying the time difference received by the operation receiver to the clock time, and store, as the specific-region DST application rule information, a specific value indicating that DST application rule information corresponding to the time difference is not specified.

5. A control method for controlling an electronic timepiece comprising:
a storage configured to store local time information and specific-region daylight-saving-time (DST) application rule information, wherein the local time information includes DST application rule information for each region and standard-wave transmitting station information in association with each other, the standard-wave transmitting station information indicating each station transmitting standard waves receivable in the region, and the specific-region DST application rule information indicates DST application rules for a specific region;
a clock circuit configured to keep time;
a display configured to display time; and
a standard wave receiver configured to receive the standard waves and obtain time information,
wherein the control method comprises:
controlling clock time to be kept by the clock circuit and display time to be displayed on the display;
calibrating the clock time based on the time information indicated by the standard waves received by the standard wave receiver;
controlling the display time based on whether the DST application rule information and the specific-region DST application rule information satisfy a predetermined condition; and
in a case in which the DST application rule information matches the specific-region DST application rule information, determining that the predetermined condition is satisfied, and setting the display time to be the same as the clock time after applying the DST application rule information to the clock time,
wherein the DST application rule information is associated with the standard-wave transmitting station information in the local time information and the standard-wave transmitting station information indicates a station transmitting the standard waves received by the standard wave receiver.

6. A non-transitory recording medium storing a computer-readable program for controlling an electronic timepiece comprising:
a storage configured to store local time information and specific-region daylight-saving-time (DST) application rule information, wherein the local time information includes DST application rule information for each region and standard-wave transmitting station information in association with each other, the standard-wave transmitting station information indicating each station transmitting standard waves receivable in the region, and the specific-region DST application rule information indicates DST application rules for a specific region;
a clock circuit configured to keep time;
a display configured to display time; and
a standard wave receiver configured to receive the standard waves and obtain time information,
wherein the computer-readable program causes a computer to:
control clock time to be kept by the clock circuit and display time to be displayed on the display;
calibrate the clock time based on the time information indicated by the standard waves received by the standard wave receiver;
control the display time based on whether the DST application rule information and the specific-region DST application rule information satisfy a predetermined condition; and
in a case in which the DST application rule information matches the specific-region DST application rule information, determine that the predetermined condition is satisfied, and set the display time to be the same as the clock time after applying the DST application rule information to the clock time,
wherein the DST application rule information is associated with the standard-wave transmitting station information in the local time information and the standard-wave transmitting station information indicates a station transmitting the standard waves received by the standard wave receiver.

7. An electronic timepiece comprising:
a storage configured to store local time information and specific-region daylight-saving-time (DST) application rule information, wherein the local time information includes DST application rule information for each region and standard-wave transmitting station information in association with each other, the standard-wave transmitting station information indic

Assignees

• Casio Computer Co Ltd

Inventors

• Oikawa Shuto

Classifications

• G04G9/0076

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

• G04R20/26

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

• G04G7/02

  by radio · CPC title

• G04R20/16 Primary

  Tuning or receiving; Circuits therefor · CPC title

• G04R20/08

  the radio signal being broadcast from a long-wave call sign, e.g. DCF77, JJY40, JJY60, MSF60 or WWVB · CPC title