JP7410649B2 - Electronic clocks and electronic clock control methods - Google Patents

Description

The present invention relates to an electronic timepiece and a control method for an electronic timepiece.

There was a desire to know the time in other areas in addition to the time related to the current location. For this reason, various watches have been devised that have multiple different time display functions. In particular, there are watches that have a world time function and display the time in each city. In watches with such a world time function, the pointer points to a city name that has been prepared in advance by printing or engraving on the dial or bezel, so you can tell which city the currently displayed time is in. There are some devices that have a function of indicating whether the device is being displayed or not (for example, see Patent Document 1).

Patent No. 3150852

However, according to this conventional clock equipped with a world time function, when displaying the time of a city that is not prepared in advance, if the time of a city that is not prepared in advance is displayed, one of the city names that are prepared in advance (or In some cases, the display was substituted by pointing to the name of a city belonging to a nearby (close) time zone. In this case, the name of the city at the time actually displayed and the name of the city pointed to by the hand may not match, which may cause trouble.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electronic clock and a control method for the electronic clock that reduce the trouble caused by displaying a region name different from the current location. There is.

To achieve the above object, an electronic watch according to one aspect of the present invention includes a time display section that displays the time, a geographical name display section that displays a geographical name, and a city name, an abbreviation of a city name, or a city name. a storage section that stores geographical name information including a name code and indicating a geographical name that can be displayed by the geographical name display section; from an external device that transmits the city name, city name abbreviation, or city name code of the city as geographical information, including the plurality of cities that have the same time difference and different locations. , a receiving unit that receives the geographical information as geographical name designation information that designates a geographical name to be displayed; and a time display unit that causes the time display unit to display a time based on the geographical name designation information that the reception unit receives. Based on the time display control unit that controls the time displayed by the time display unit and the geographical name information stored in the storage unit, the geographical name designation information received by the reception unit indicates a determining unit that determines whether a geographical name can be displayed; and when the determining unit determines that a geographical name can be displayed, a geographical name corresponding to the geographical name designation information received by the receiving unit; Geography that causes a name to be displayed in the geographical name display section, and when the determination section determines that the geographical name cannot be displayed, displays information indicating that the geographical name cannot be displayed on the geographical name display section. and a target name display control section.

Further, in the electronic timepiece according to one aspect of the present invention, the receiving section further receives time difference information indicating a time difference of the region indicated by the geographical name designation information with respect to standard time from the external device, and the receiving section further receives time difference information from the external device , and causes the time display unit to display a time based on the time difference information that the reception unit receives from the external device .

Furthermore, in the electronic timepiece according to one aspect of the present invention, the receiving unit receives the time difference information regarding a plurality of regions indicated by the geographical name information stored in the storage unit , from the external device .

Further, the electronic timepiece according to one aspect of the present invention further includes an operation reception unit that receives a selection operation for selecting the time difference information to be displayed from among the plurality of time difference information that the reception unit receives from the external device . .

Further, in the electronic timepiece according to one aspect of the present invention, the geographical name information is associated with second time difference information indicating a time difference of the area indicated by the geographical name information with respect to standard time. and the time display control unit adjusts the time of the area indicated by the geographical name designation information received by the receiving unit from the external device to the time based on the second time difference information stored in the storage unit. Display it on the display.

Further, in the electronic timepiece according to one aspect of the present invention, the receiving section further receives standard time information indicating standard time from the external device , and the time display control section is configured to receive standard time information indicating a standard time from the external device. The time based on the standard time information is displayed on the time display section.

Furthermore, in the electronic timepiece according to one aspect of the present invention, the geographical name designation information includes information that designates the geographical name of the current location of the electronic timepiece.

Further, a method for controlling an electronic watch according to one aspect of the present invention includes a time display section that displays the time, a geographical name display section that displays a geographical name , and a geographical area that can be displayed by the geographical name display section. a storage unit that stores geographical name information indicating the name of a city; and a storage unit that acquires location information indicating the current location , and a plurality of cities indicated by the location information that have the same time difference and are different from each other. A method for controlling an electronic watch, comprising: a receiving unit that receives geographic information from an external device that includes the plurality of cities and that transmits a city name, an abbreviation of a city name, or a city name code of the city as geographic information. a reception procedure for receiving the geographical information transmitted by the external device as geographical name designation information specifying a geographical name to be displayed, and a time based on the geographical name designation information received by the receiving unit. received in the reception procedure based on a time display control procedure for controlling the time displayed by the time display section by displaying it on the time display section, and the geographical name information stored in the storage section. a determination procedure for determining whether the geographical name indicated by the geographical name designation information can be displayed; and if it is determined that the geographical name indicated by the geographical name designation information can be displayed; A geographical name corresponding to the geographical name designation information is displayed in the geographical name display section, and if it is determined in the determination procedure that the geographical name cannot be displayed, information indicating that the geographical name cannot be displayed. and a geographical name display control procedure for displaying on the geographical name display section.

According to the present invention, it is possible to provide an electronic timepiece and a method for controlling the electronic timepiece that reduce the annoyance caused by displaying a region name different from the current location.

1 is a diagram showing an example of the external configuration of an electronic timepiece according to an embodiment. 1 is a schematic diagram showing the configuration of a timepiece system in this embodiment. FIG. 3 is a diagram showing an example of city name list information stored in the storage unit of the electronic timepiece according to the present embodiment. FIG. 3 is a diagram illustrating an example of geographic information transmitted by the portable electronic device according to the present embodiment. FIG. 7 is a diagram showing another example of geographic information transmitted by the portable electronic device of the present embodiment. FIG. 3 is a diagram illustrating an example of time difference information transmitted by the portable electronic device of the present embodiment. FIG. 3 is a diagram illustrating a processing procedure of communication start processing executed by the electronic watch in the present embodiment. It is a figure showing the processing procedure of time display processing performed by the electronic watch in this embodiment. FIG. 3 is a diagram illustrating an example of displaying the current time according to the present embodiment. FIG. 7 is a diagram showing another example of displaying the current time according to the present embodiment. FIG. 7 is a diagram illustrating a processing procedure of communication termination processing executed by the electronic watch in the present embodiment.

Embodiments of the present invention will be described below with reference to the drawings. First, an example of the external configuration of the electronic timepiece 100 will be described.

[External configuration of electronic clock]
FIG. 1 is a diagram showing an example of the external configuration of an electronic timepiece 100 according to an embodiment. The electronic watch 100 includes a time display section that displays the time and a geographical name display section that displays a geographical name.
Specifically, the electronic timepiece 100 is an analog timepiece that includes a second hand 120A, a minute hand 120B, an hour hand 120C, and a dial D as time display sections, and each of these sections indicates the current time. The electronic watch 100 has a world time mode function that shows the current time in various parts of the world. The electronic watch 100 indicates the city name using a city name hand 120F, and the current time of the city using a second hand 120A, a minute hand 120B, and an hour hand 120C. That is, the city name hand 120F indicates the city name of the time currently displayed by the hour hand 120C, minute hand 120B, and second hand 120A.

Note that the city name here is an example of a geographical name that can be displayed by the city name pointer 120F of the electronic watch 100. Geographical names that can be displayed by the electronic watch 100 include, in addition to city names, administrative division names such as country names, group names, and prefecture names, and geographical names other than administrative division names, such as common names of the area. It will be done. Furthermore, in this specification, geographical names include codes (A, B, C, 1, 2, 3, etc.) in which city names or the like are designated in advance.

As shown in the figure, the names of cities around the world are printed on the dial D of the electronic watch 100 as a city name display section D1 (ie, a geographical name display section). In this example, dial D includes Paris (P), Hong Kong (H), Tokyo (T), New York (N), London (L). ), and a mark indicating that it is neither of these (... mark, Other, or O) is printed.

Note that the electronic timepiece 100 may have a configuration in which the city name guide 120F is omitted. In this case, the electronic watch 100 may be configured such that the second hand 120A indicates the city name, and the minute hand 120B and hour hand 120C indicate the current time of the city.

[Functional configuration of clock system 1]
FIG. 2 is a schematic diagram showing the configuration of the timepiece system 1 in this embodiment. In the illustrated example, the timepiece system 1 includes an electronic timepiece 100 and a portable electronic device 200 (communication device) that can communicate with the electronic timepiece 100.

[Functional configuration of electronic clock]
In the illustrated example, the electronic timepiece 100 includes a control section 101, an oscillation circuit 102, a frequency dividing circuit 103, an input section 104, a storage section 105, a solar cell 106, a charge/discharge control circuit 107, and a secondary Battery 108, battery voltage detection section 109, switch 110, wireless communication control section 111, second hand 120A, minute hand 120B, hour hand 120C, city name hand 120F, train wheel mechanism 121A, and train wheel mechanism 121B. , a wheel train mechanism 121C, a wheel train mechanism 121F, a stepping motor 122A, a stepping motor 122B, a stepping motor 122C, and a stepping motor 122F.

Note that the second hand 120A may be omitted in the electronic watch 100. In this case, in the electronic timepiece 100, the stepping motor 122A, which is the drive mechanism for the second hand 120A, is also omitted.

Hereinafter, when the second hand 120A, minute hand 120B, hour hand 120C, and city name hand 120F are not distinguished from each other, they will be referred to as hands 120. Moreover, when the wheel train mechanism 121A, the wheel train mechanism 121B, the wheel train mechanism 121C, and the wheel train mechanism 121F are not distinguished from each other, they are referred to as the wheel train mechanism 121. Moreover, when the stepping motor 122A, the stepping motor 122B, the stepping motor 122C, and the stepping motor 122F are not distinguished from each other, they are referred to as the stepping motor 122.

The control unit 101 is a CPU (Central Processing Unit), and controls each unit included in the electronic timepiece 100. The control unit 101 includes a power supply control unit 1011, a time counting unit 1012, a communication control unit 1013, an information generation unit 1014, an information transmission unit 1015, and a pointer control unit 1017.

The power control unit 1011 controls turning on or off the power of the wireless communication control unit 111. Specifically, power supply control section 1011 turns on switch 110 only when wireless communication control section 111 communicates with portable electronic device 200 to supply power from secondary battery 108 to wireless communication control section 111 . Furthermore, when the wireless communication control section 111 does not communicate with the portable electronic device 200, the power supply control section 1011 turns off the switch 110 and does not supply power from the secondary battery 108 to the wireless communication control section 111.

The time counting unit 1012 includes an internal counter, and measures the current date and time (day, hour, minute, second, etc.) based on the measurement signal input from the frequency dividing circuit 103, and holds hand position information indicating the measured date and time in the internal counter. . Communication control unit 1013 controls communication in wireless communication control unit 111 .

Information generation section 1014 generates data to be transmitted to portable electronic device 200. Information transmitting section 1015 transmits the data generated by information generating section 1014 from wireless communication control section 111 to portable electronic device 200 .

Pointer control section 1017 controls the position of pointer 120. For example, the pointer control unit 1017 outputs a drive pulse to the stepping motor 122 to drive the stepping motor 122 and move the pointer 120.
That is, the hand control section 1017 functions as a time display control section that controls the time displayed by the time display section.

The oscillation circuit 102 generates an oscillation signal of a predetermined frequency (for example, 32768 Hz) and outputs it to the frequency dividing circuit 103. The frequency dividing circuit 103 divides the frequency of the oscillation signal input from the oscillation circuit 102 to generate a measurement signal that serves as a measurement reference, and outputs the generated measurement signal to the control unit 101.

The input unit 104 includes a switch and receives operation input. Note that the input unit 104 may be composed of a plurality of switches, or may be composed of a single switch.

The storage unit 105 includes a RAM (Random Access Memory), a ROM (Read Only Memory), and the like, and stores various information. Furthermore, the storage unit 105 stores in advance an operation program to be executed by the control unit 101. This operating program is read out when the control unit 101 is activated. The storage unit 105 of this embodiment stores city name list information.

FIG. 3 is a diagram showing an example of city name list information stored in the storage unit 105 of the electronic timepiece 100 of this embodiment. The city name list information is list information of city names that can be displayed by the electronic watch 100. In other words, this city name list information is information (geographical name information) indicating geographical names that can be displayed by the geographical name display section. As shown in the figure, the city name list information has items of No. and city name.

In one example of this embodiment, the electronic watch 100 can display the current time in Paris, Hong Kong, Tokyo, New York, London, and other cities. In this example, the city name list information includes No. 1 and the city name "Paris, or P," No. 2 and the city name "Hong Kong, or H," and No. 3 and the city name "Tokyo, Tokyo," or T," No. 4 and the city name "New York, New York, or N," and No. 5 and the city name "London, or L," are stored in association with each other.

Note that, in an example of this embodiment, the description will be made assuming that the city name list information stores a character string indicating a city name, but the information is not limited to this. The city name list information may store identification information (for example, a city name code) for identifying a city name.

Further, the city name list information may include an item of time difference from UTC (second time difference information) for each city name. In this case, the second time difference information, that is, the time difference from UTC item, stores a numerical value indicating the time difference from UTC in minutes.
That is, the storage unit 105 may store geographical name information and second time difference information indicating the time difference of the area indicated by the geographical name information with respect to standard time (for example, UTC) in association with each other. Further, in this case, the control unit 101 causes the time display unit to display the time of the area indicated by the received geographical name designation information, based on the second time difference information stored in the storage unit 105.
According to the electronic watch 100 configured in this way, the current time in each city can be displayed without receiving time difference information from the portable electronic device 200 or the like.

Returning to FIG. 2, the solar cell 106 is a power generation unit that receives light (sunlight, lighting, etc.) and converts it into electrical energy. Solar cell 106 charges secondary battery 108 . The charging/discharging control circuit 107 controls charging/discharging in the secondary battery 108 . For example, the charge/discharge control circuit 107 charges the secondary battery 108 with electrical energy generated by the solar cell 106. Furthermore, when the voltage of the secondary battery 108 becomes equal to or higher than a predetermined voltage, the charge/discharge control circuit 107 causes the secondary battery 108 to be discharged or stops charging. The secondary battery 108 supplies power to each part of the electronic timepiece 100 for operation.

Battery voltage detection section 109 detects the voltage of secondary battery 108 and outputs the detected voltage value to control section 101 . The switch 110 is a switch for turning on and off the supply of power from the secondary battery 108 to the wireless communication control unit 111.

The wireless communication control unit 111 includes an antenna 1111 and a short-range wireless communication unit 1112. Antenna 1111 is an antenna for communication by short-range wireless communication unit 1112. The short-range wireless communication unit 1112 communicates with other communication devices (for example, the portable electronic device 200) by short-range wireless communication based on standards such as Bluetooth (registered trademark). The communication is not limited to Bluetooth (registered trademark), and various communication methods can be used, and it is preferable that the communication method supports power saving.

The stepping motor 122A is a stepping motor that moves the second hand 120A by rotating the wheel train mechanism 121A. The stepping motor 122B is a stepping motor that moves the minute hand 120B by rotating the wheel train mechanism 121B. The stepping motor 122C is a stepping motor that moves the hour hand 120C by rotating the wheel train mechanism 121C. The stepping motor 122F is a stepping motor that moves the city name pointer 120F by rotating the wheel train mechanism 121F.

The train wheel mechanism 121A is a train wheel mechanism that rotates the second hand 120A. The train wheel mechanism 121B is a train wheel mechanism that rotates the minute hand 120B. The train wheel mechanism 121C is a train wheel mechanism that rotates the hour hand 120C. The train wheel mechanism 121F is a train wheel mechanism that rotates the pointer of the city name pointer 120F.

[Functional configuration of portable electronic devices]
Returning to FIG. 1, an example of the functional configuration of the portable electronic device 200 will be described. The portable electronic device 200 is, for example, a portable electronic device such as a smartphone, a mobile phone, or a tablet terminal. The portable electronic device 200 includes a control section 201 , an input section 202 , a display section 203 , a storage section 204 , an antenna 205 , a short-range wireless communication section 206 , and a position information acquisition section 207 .

The control unit 201 is composed of a CPU, and controls each unit included in the portable electronic device 200. The input unit 202 is a touch panel installed on various switches or a display screen of the display unit 203, and accepts input. The display unit 203 is a liquid crystal display or the like, and displays information.
The storage unit 204 is composed of a RAM, a ROM, etc., and stores various information. The storage unit 204 of this embodiment includes the names of cities around the world shown on the dial D of the electronic watch 100.

Antenna 205 is an antenna for short-range wireless communication unit 206 to communicate. The short-range wireless communication unit 206 communicates with other communication devices (for example, the electronic watch 100) by short-range wireless communication based on standards such as Bluetooth.

For example, the location information acquisition unit 207 uses a GPS (Global Positioning System) or the like to obtain Coordinated Universal Time (UTC), location information (for example, latitude and longitude) indicating the current location, and the time difference of the current location from UTC. and the time difference information shown. Note that the method for acquiring UTC, location information, and time difference information is not limited to information obtained by GPS.
The location information acquisition unit 207 outputs the acquired location information and time difference information to the control unit 201. The control unit 201 determines a geographical name indicating the current location based on the acquired location information. As an example, a case will be described in which the current locations of the electronic watch 100 and the portable electronic device 200 are (Example 1) Seoul, South Korea and (Example 2) Tokyo, Japan.

(Example 1) When the current location is "Seoul" FIG. 4 is a diagram showing an example of geographic information transmitted by the portable electronic device 200 of this embodiment.
The position information acquisition unit 207 acquires UTC (for example, 01:08), position information (for example, 37.3 degrees north latitude, 126.6 degrees east longitude), and time difference information (UTC+540 minutes) using GPS. The control unit 201 determines that the city name of the current location is "Seoul" based on the latitude and longitude of the current location and the latitude and longitude information (not shown) of each city acquired in advance. . The control unit 201 transmits UTC, time difference information, and city name (Seoul, or S) as geographic information to the electronic watch 100 via the short-range wireless communication unit 206.

(Example 2) When the current location is "Tokyo" FIG. 5 is a diagram showing another example of geographic information transmitted by the portable electronic device 200 of this embodiment.
The position information acquisition unit 207 acquires UTC (for example, 01:08), position information (for example, 35.4 degrees north latitude, 139.4 degrees east longitude), and time difference information (UTC+540 minutes) using GPS. The control unit 201 determines that the city name of the current location is "Tokyo" based on the latitude and longitude of the current location and the latitude and longitude information (not shown) of each city acquired in advance. . The control unit 201 transmits UTC, time difference information, and city name (Tokyo, Tokyo, or T) as geographic information to the electronic watch 100 via the short-range wireless communication unit 206.

That is, the geographical information (geographical name designation information) includes information that designates the geographical name of the current location of the electronic watch 100 and the portable electronic device 200.

In this embodiment, the description will be made assuming that the portable electronic device 200 includes the location information acquisition unit 207 and the electronic watch 100 receives geographic information from the portable electronic device 200, but this is not the case. The electronic watch 100 may include a function equivalent to the position information acquisition section 207. That is, the electronic watch 100 further includes a geographical name designation information generation unit (not shown) that generates geographical name designation information based on the current location of the electronic watch, and the control unit 101 (receiving unit) generates geographical name designation information based on the current location of the electronic watch. The information may be configured to be received from the geographical name designation information generation unit.

[Sending time difference information for each city]
Note that, in addition to the geographical information of the current location, the portable electronic device 200 may transmit time difference information of each city that the electronic watch 100 can display to the electronic watch 100.
FIG. 6 is a diagram showing an example of time difference information transmitted by the portable electronic device 200 of this embodiment. The time difference information includes the following items: number, city name, and time difference from UTC.

That is, the control unit 101 functions as a receiving unit that receives standard time information indicating standard time (eg, UTC). The control unit 101 also functions as a time display control unit that causes the time display unit to display the time based on the received standard time information.
According to the clock system 1 configured in this way, the displayed time can be adjusted based on the received standard time (eg, UTC).

The portable electronic device 200 transmits time difference information about each city included in the city name list information stored in the storage unit 105 of the electronic watch 100 shown in FIG. Send to.
In an example of this embodiment, the portable electronic device 200 transmits the time difference from UTC for each city of Paris, Hong Kong, Tokyo, New York, and London to the electronic watch 100 as time difference information.
According to the timepiece system 1 configured in this way, even if time difference information is stored in the electronic timepiece 100, it is possible to update the time difference information. As a result, the clock system 1 can display the accurate current time in each city even if the time difference from UTC is changed due to implementation of daylight saving time, for example.

[Operation of electronic clock 100]
Next, an example of the operation of the timepiece system 1 will be described with reference to FIGS. 7 to 11.

[(Part 1) Communication start processing]
FIG. 7 is a diagram showing a processing procedure of communication start processing executed by the electronic timepiece 100 in this embodiment. When electronic watch 100 starts communication with portable electronic device 200, it executes the process shown in this figure.

(Step S101) The control unit 101 determines whether the input unit 104 has received a predetermined button operation for starting communication by the wireless communication control unit 111. If the control unit 101 determines that the operation has been accepted, the process advances to step S102. Further, if the control unit 101 determines that no operation has been received, the process of step S101 is executed again.

(Step S102) The control unit 101 turns on the switch 110 to turn on the power to the wireless communication control unit 111. After that, the process advances to step S103.
(Step S103) The control unit 101 determines whether the activation of the wireless communication control unit 111 is completed. If the control unit 101 determines that the startup has been completed, the process advances to step S104. Furthermore, if the control unit 101 determines that the startup has not been completed, the process of step S103 is executed again.

(Step S104) The control unit 101 sets the wireless communication control unit 111 to start communication.
Thereafter, the process proceeds to step S105.
(Step S105) The control unit 101 determines whether a connection with the portable electronic device 200 has been established. If the control unit 101 determines that the connection has been established, the process advances to step S106. Further, if the control unit 101 determines that the connection has not been established, the process of step S105 is executed again.

(Step S106) The control unit 101 transmits the completion of preparation for starting normal communication to the portable electronic device 200 via the wireless communication control unit 111. After that, the process ends.

[(Part 2) Current time display processing for each city]
FIG. 8 is a diagram showing a processing procedure of time display processing executed by the electronic timepiece 100 in this embodiment.
(Step S10) The control unit 101 receives geographic information from the portable electronic device 200 via the wireless communication control unit 111.

Here, the geographic information includes geographic name information indicating a geographic name that can be displayed in the city name display section D1 of the dial D described above. That is, the control unit 101 functions as a receiving unit that receives geographical name designation information.

Furthermore, as described above, the geographic information includes information indicating the time difference from standard time (for example, Coordinated Universal Time) for the city to be displayed. That is, the control unit 101 functions as a receiving unit that further receives time difference information indicating the time difference of the area indicated by the geographical name designation information with respect to standard time.
Furthermore, the control unit 101 displays the current time based on this time difference. That is, the control unit 101 causes the time display unit to display the time based on the received time difference information.

Note that if the portable electronic device 200 is configured to transmit time difference information of each city, the control unit 101 receives the time difference information of each city from the portable electronic device 200 via the wireless communication control unit 111.
That is, the control unit 101 functions as a receiving unit that receives time difference information regarding a plurality of regions indicated by the geographical name information stored in the storage unit 105.

(Step S20) The control unit 101 determines whether the city name included in the geographic information received in step S10 is included in the city name list information stored in the storage unit 105. Specifically, the control unit 101 searches the city name list information stored in the storage unit 105 using the city name included in the geographic information as a search key.
(Step S30) If the control unit 101 determines that the received city name is included in the city name list information (step S30; YES), the control unit 101 advances the process to step S40. When the control unit 101 determines that the received city name is not included in the city name list information (step S30; NO), the control unit 101 advances the process to step S60.

That is, the control unit 101 functions as a determination unit that determines, based on the geographical name information stored in the storage unit 105, whether the geographical name indicated by the above-mentioned geographical name designation information can be displayed.

[If city name can be displayed]
FIG. 9 is a diagram illustrating an example of displaying the current time according to the present embodiment. In this example, a case where the city name received in step S10 is "Tokyo", that is, a case where the current location of the electronic watch 100 is "Tokyo" will be explained. As described above, the symbol "T" representing Tokyo is printed on the dial D of the electronic watch 100. In other words, the electronic watch 100 of this embodiment can display the city name "Tokyo".

(Step S40) The control unit 101 controls the stepping motor 122F to set the indicated position of the city name pointer 120F to the symbol "T" indicating Tokyo.
(Step S50) The control unit 101 calculates the current time based on UTC included in the geographic information received in step S10 and the error from UTC. Specifically, the control unit 101 calculates the current time in Tokyo "10:08" based on the UTC "01:08" received in step S10 and the time difference from UTC in Tokyo "+540". do. The control unit 101 controls the stepping motors 122A to 122C based on the calculated current time, changes the indicated positions of the second hand 120A, minute hand 120B, and hour hand 120C to the current time in Tokyo, "10:08", Continue timing operation.

[If it is not possible to display the city name]
FIG. 10 is a diagram showing another example of displaying the current time according to the present embodiment. In this example, a case where the city name received in step S10 is "Seoul", that is, a case where the current location of the electronic watch 100 is "Seoul" will be explained. As described above, the symbol "S" indicating soul is not printed on the dial D of the electronic watch 100. In other words, the electronic watch 100 of this embodiment cannot display the city name "Seoul".

(Step S60) The control unit 101 controls the stepping motor 122F to change the indicated position of the city name pointer 120F to a symbol "..." indicating another city.
(Step S70) The control unit 101 calculates the current time based on UTC included in the geographic information received in step S10 and the error from UTC. Specifically, the control unit 101 calculates the current time in Seoul "10:08" based on the UTC "01:08" received in step S10 and the time difference from UTC in Seoul "+540". do. The control unit 101 controls the stepping motors 122A to 122C based on the calculated current time, changes the indicated positions of the second hand 120A, minute hand 120B, and hour hand 120C to the current time in Seoul, "10:08", Continue timing operation.

That is, if the control unit 101 determines that the geographical name designation information received is displayable, the control unit 101 causes the geographical name display unit to display the geographical name corresponding to the received geographical name designation information, and if the control unit 101 determines that the geographical name designation information is not displayable, the control unit 101 displays the geographical name corresponding to the received geographical name designation information. , functions as a geographical name display control unit that causes the geographical name display unit to display information indicating that the geographical name cannot be displayed.

Note that the control unit 101 can change the name of the city where the current time is displayed based on the user's operation of the electronic watch 100. For example, when the control unit 101 receives a user's operation to change the city name from "Tokyo" to "Paris", the control unit 101 changes the indicated position of the city name guide 120F to the symbol "P" indicating Paris. Furthermore, the control unit 101 obtains the time difference (+060) from UTC in Paris based on the time difference information stored in the storage unit 105, and calculates the current time in Paris.
That is, the control unit 101 functions as an operation reception unit that receives a selection operation for selecting time difference information to be displayed from among the plurality of received time difference information.
Here, the time difference information stored in the storage unit 105 has already been received from the portable electronic device 200 in step S10 described above. That is, the electronic watch 100 can display the current time of each city without acquiring time difference information from the portable electronic device 200 each time the name of the city to be displayed is changed.

[(Part 3) Communication termination process]
FIG. 11 is a diagram illustrating the processing procedure of communication termination processing executed by the electronic timepiece 100 in this embodiment. When electronic watch 100 ends communication with portable electronic device 200, it executes the process shown in this figure.

(Step S301) The control unit 101 determines whether a disconnection request has been received from the portable electronic device 200. If the control unit 101 determines that a disconnection request has been received, the process advances to step S302. Further, if the control unit 101 determines that a disconnection request has not been received, the process of step S301 is executed again.

(Step S302) The control unit 101 turns off the switch 110 and turns off the power of the wireless communication control unit 111. After that, the process ends.

[Summary of embodiments]
As described above, when the pointer 120 cannot point to the region name of the current location, the clock system 1 according to the present embodiment can point to the symbol "..., Other, or O" indicating another region. .

Here, according to a clock with a conventional configuration, if the current location is "Seoul" and the hands cannot point to Seoul, the hands will point to an area with the same time difference as Seoul (for example, Tokyo). Due to this, the current location may be displayed instead. However, with such a conventional clock configuration, the clock points to Tokyo even though the current location is Seoul, resulting in a mismatch between the user's current location and the location indicated by the clock, which is troublesome for the user. was occurring.

According to the clock system 1 of this embodiment, it is possible to reduce the annoyance caused by displaying a region name different from the current location.

Note that all or part of the functions of each part of the electronic watch 100 or the portable electronic device 200 in the embodiments described above can be realized by recording a program for realizing these functions on a computer-readable recording medium. It may also be realized by having a computer system read and execute a program recorded on a medium. Note that the "computer system" herein includes hardware such as an OS and peripheral devices.

Furthermore, the term "computer-readable recording medium" refers to portable media such as flexible disks, magneto-optical disks, ROMs, and CD-ROMs, and storage units such as hard disks built into computer systems. Furthermore, a "computer-readable recording medium" refers to a storage medium that dynamically stores a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. It may also include a device that retains a program for a certain period of time, such as a volatile memory inside a computer system that is a server or client. Further, the above-mentioned program may be one for realizing a part of the above-mentioned functions, or may be one that can realize the above-mentioned functions in combination with a program already recorded in the computer system.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention.

For example, in the embodiment described above, a case has been described in which each pointer 120 is moved independently by the driving of the corresponding individual stepping motor 122, but the present invention is not limited to this, and a plurality of pointers 120 are moved by one stepping motor 122. They may also move in conjunction with each other. For example, the second hand 120A may move independently, and the minute hand 120B and hour hand 120C may move in conjunction. Alternatively, the hour hand 120C may move independently, and the minute hand 120B and second hand 120A may move in conjunction.

DESCRIPTION OF SYMBOLS 1... Clock system, 100... Electronic clock, 101... Control unit, 104... Input unit, 105... Storage unit, 110... Switch, 111... Wireless communication control unit, 112... Display unit, 120... Pointer, 121... Wheel train mechanism , 122...Stepping motor, 200...Portable electronic device, 201...Control section, 202...Input section, 203...Display section, 204...Storage section, 205...Antenna, 206...Near field communication section, 207...Position information acquisition section

Claims (8)

a time display section that displays the time;
a geographical name display section that displays a geographical name;
a storage unit that stores geographical name information that includes a city name, an abbreviation of a city name, or a city name code and indicates a geographical name that can be displayed by the geographical name display unit;
In addition to acquiring location information indicating the current location, the location information indicates multiple cities that have the same time difference and different locations, and the city name and city name of the city. a receiving unit that receives the geographical information as geographical name designation information that designates a geographical name to be displayed from an external device that transmits the abbreviation or city name code as the geographical information;
a time display control unit that controls the time displayed by the time display unit by causing the time display unit to display a time based on the geographical name designation information received by the reception unit;
a determination unit that determines whether a geographical name indicated by the geographical name designation information received by the reception unit can be displayed based on the geographical name information stored in the storage unit;
If the determining unit determines that the geographical name designation information received by the receiving unit is displayable, the determining unit causes the geographical name display unit to display a geographical name corresponding to the geographical name designation information received by the receiving unit; a geographical name display control unit that causes the geographical name display unit to display information indicating that the geographical name cannot be displayed when it is determined that the geographical name cannot be displayed;
An electronic clock equipped with The receiving section includes:
further receiving time difference information from the external device indicating a time difference of the area indicated by the geographical name designation information with respect to standard time;
The time display control section includes:
The electronic timepiece according to claim 1, wherein the time display unit displays a time based on the time difference information that the reception unit receives from the external device. The receiving section includes:
The electronic timepiece according to claim 2, wherein the time difference information regarding a plurality of regions indicated by the geographical name information stored in the storage unit is received from the external device. The electronic timepiece according to claim 3, further comprising: an operation receiving section that receives a selection operation for selecting the time difference information to be displayed from among the plurality of the time difference information that the receiving section receives from the external device. In the storage unit,
The geographical name information and second time difference information indicating a time difference of the area indicated by the geographical name information with respect to standard time are stored in association with each other,
The time display control section includes:
Based on the second time difference information stored in the storage unit, the receiving unit causes the time display unit to display the time of the area indicated by the geographical name designation information received from the external device. The electronic watch described in any one of Item 4. The receiving section includes:
further receiving standard time information indicating standard time from the external device;
The time display control section includes:
The electronic timepiece according to any one of claims 1 to 5, wherein the time display unit displays a time based on the standard time information that the reception unit receives from the external device. The electronic timepiece according to any one of claims 1 to 6, wherein the geographical name designation information includes information that designates the geographical name of the current location of the electronic timepiece. a time display section that displays the time; a geographical name display section that displays a geographical name ; and a storage section that stores geographical name information indicating a geographical name that can be displayed by the geographical name display section; In addition to acquiring location information indicating the current location, the location information indicates a plurality of cities that have the same time difference and different locations, and the city name and city name of the city. A method for controlling an electronic watch, comprising: a receiving unit that receives geographical information from an external device that transmits an abbreviation or city name code as geographical information,
a receiving procedure of receiving the geographical information transmitted by the external device as geographical name designation information that designates a geographical name to be displayed;
a time display control procedure for controlling the time displayed by the time display section by displaying on the time display section a time based on the geographical name designation information received by the receiving section;
a determination step of determining whether or not a geographical name indicated by the geographical name designation information received in the reception procedure can be displayed, based on the geographical name information stored in the storage unit;
If it is determined in the determination step that the geographical name designation information is displayable, the geographical name corresponding to the geographical name designation information received in the reception step is displayed on the geographical name display section, and in the determination step If it is determined that the geographical name cannot be displayed, a geographical name display control procedure for displaying information indicating that the geographical name cannot be displayed on the geographical name display section;
A method for controlling an electronic watch.

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