JPH09297774A - Portable terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the portable terminal device which automatically charges a secondary battery when a charging device is connected and also loads display data from the outside. SOLUTION: Desired time is set in the timer part 23 of the charging device 2, and when plugs 25 and 26 of the charging device 2 are inserted into sockets 17 and 18 of the portable terminal 1, a change 20 starts charging the secondary battery 16. At the specified time, the timer part 23 informs of that to a control means 15 through transmitting and receiving means 21 and 14, and the control means 14 actuates a modem 22 to acquire display data from a display data transmission source connected through a public telephone line 3 and starts storing them in a storage means 12. The control means 15 loads a display program stored in a ROM 24. This display program 241 is executed by the control means 145 when the display data stored in a storage means 12 are displayed at a display means 10, in response to a input operation of the input means 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal device capable of inputting and storing description contents such as books and newspapers from the outside and displaying the contents on a display means such as an LCD and reading the input contents.

[0002]

2. Description of the Related Art Description contents such as books and newspapers, texts created by a personal computer, texts received by personal computer communication, etc. are input and stored from the outside, and the stored contents are displayed on a display means such as an LCD by an input operation. Has been proposed and put into practical use by displaying it on a mobile phone and reading the contents of a book or the like (for example, issued by NEC Corporation, NEC Technical Report, Vol. 47, No. 8, Heisei 6).
"Digital Book", p. 95-97, September 16, 2015
reference).

FIG. 8 is a block diagram of such a conventional portable terminal device. In the figure, a portable terminal 900 is a small and lightweight device which is convenient to carry, and has a display means 10 such as an LCD, an input means 11 having some kinds of keys such as a page turning key, and a rewriting of an EEPROM or the like. Storage means 12 composed of a possible non-volatile memory, and a main memory 13 composed of a rewritable volatile memory such as a RAM,
Transmitting / receiving means 14 for exchanging data and the like with an external device by serial transmission or parallel transmission, control means 15 such as a microprocessor connected to these for controlling main of the portable terminal 900, and portable terminal 900 And a secondary battery 901 that supplies electric power to each part of the. Further, a connector 902 for connecting the transmitting / receiving means 14 to an external device is provided.

The secondary battery 901 supplies electric power to each part in the portable terminal 900, and can be detached from the portable terminal 900. When the stored power is insufficient, it is detached and separately. It is charged by the prepared charger 903.

Data to be displayed on the display means 10 of the portable terminal 900 is stored in the storage means 12, but the stored contents can be replaced with data obtained from various information infrastructures. ing. In FIG. 8, the modulator / demodulator 904 is connected to its connector 90.
5 by connecting to the connector 902 of the mobile terminal 900, the storage means 12 can be updated with the display data obtained from the outside through the modulator / demodulator 904, and the floppy disk unit 906 can be connected to the mobile terminal 9 via the connector 907.
By connecting to the connector 902 of No. 00, the storage means 12 can be updated with the display data stored in the floppy disk 908 loaded in the floppy disk unit 906. The control means 15 of the mobile terminal 900 mainly performs the replacement process of these display data.

If the type of data to be displayed is different, the display program which controls the display of the data is usually different. Therefore, a display program matching the type of the input data is stored in the main memory of the portable terminal 900. It can be loaded. In this loading, the floppy disk 909 storing the desired display program is loaded into the floppy disk unit 906, and the control means 15 reads the display program stored in the floppy disk 909 through the transmitting / receiving means 14 and stores it in the main memory 13. It is done by doing. For example, when displaying text created by a personal computer, Japanese MS-DOS text display software is used as a display program. When the display data and the display software are stored in the same floppy disk, the display data and the display software can be read into the mobile terminal 900 at the same time.

[0007]

Since such a portable terminal device operates on a secondary battery, there is no restriction on the place of use, and various data can be viewed (read) by exchanging the display data. Etc. is a big advantage. However, for that purpose, an operation of appropriately charging the secondary battery and an operation of exchanging data are required.
In the conventional mobile terminal device, since the data exchange work cannot be performed while the secondary battery 901 is being charged, it is necessary to perform the data exchange work at different times, which is a heavy burden on the user.

Therefore, an object of the present invention is to provide a portable terminal device which is charged by connecting the charging device to the portable terminal and which automatically starts replacement of data at a preset time.

Another object of the present invention is to provide a portable terminal device capable of automatically loading a display program matching the display data input this time during charging.

[0010]

A portable terminal device of the present invention comprises a rewritable storage means for storing data to be displayed, a display means for displaying the data stored in the storage means, and an external device. A portable terminal which stores input data in the storage means and displays the data stored in the storage means on the display means in response to an input operation of the input means, and which operates on a secondary battery. And a charger that is connected to the portable terminal when the secondary battery is charged and charges the secondary battery, and a clock unit that notifies the control unit when the set time arrives. Is characterized in that, when the arrival of the set time is notified from the clock unit, a process of inputting data to be displayed from the outside and storing the data in the storage means is started.

In the portable terminal device having such a configuration, when the desired time is set in the clock unit and the charger is connected to the secondary battery built in the portable terminal, charging is started and the specified time is reached. Then, the control means inputs the data to be displayed from the outside and starts the processing of storing the data in the storage means.

When display data is acquired from the outside by communication through a public line, a wireless line, or the like, the control means is activated to acquire the display data from the display data transmission source by communication and perform the control. A data acquisition means (modulator / demodulator, radio device, etc.) for transmitting to the means is provided. Such data acquisition means may be configured to be housed in a charging device that is detachable from the mobile terminal together with the charger and the timepiece unit. The charging device further includes a non-volatile memory that stores a display program that is executed when the control unit displays the data stored in the storage unit on the display unit in response to an input operation of the input unit. The control means stores the external data in the storage means, inputs the display program stored in the nonvolatile memory, and uses the display program as the display program for the data stored in the storage means. By adopting the configuration, the display program matching the display data input this time can be automatically loaded during charging.

Display data from the outside can also be obtained from an external storage device such as a floppy disk unit. In this case, the control means of the mobile terminal has a configuration for inputting display data from an external storage device connected to the mobile terminal. In this case, a data acquisition means such as a modulator / demodulator is unnecessary, and a configuration is adopted in which the charger and the timepiece unit are housed in a charging device that is detachable from the portable terminal. The charging device further includes a non-volatile memory that stores a display program that is executed when the control unit displays the data stored in the storage unit on the display unit in response to an input operation of the input unit. The control means stores the data from the external storage device in the storage means, inputs the display program stored in the nonvolatile memory, and uses the display program as the display program for the data stored in the storage means. With this configuration, the display program matching the display data input this time can be automatically loaded during charging.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of a portable terminal device of the present invention. The mobile terminal device of this embodiment includes a mobile terminal 1 and a charging device 2.

The mobile terminal 1 has a display means 10 such as an LCD.
An input means 11 having some kinds of keys such as a page turning key, a storage means 12 composed of a rewritable nonvolatile memory such as an EEPROM, and a rewritable volatile memory such as a RAM. The main memory 13 and the transmission / reception means 14 for exchanging data or the like between the charging device 2 by serial transmission or parallel transmission, and the control means such as a microprocessor connected to these and controlling the main control of the entire mobile terminal 1. 15 and a secondary battery 16 that supplies electric power to each unit in the mobile terminal 1. The storage means 12 has a display data storage area 121 for storing display data such as characters and figures, and a data load control program storage area 122. The latter storage area 122 is provided for each type number of the charging device 2. A data load control program 123 is stored in advance. In addition, the transmitting / receiving means 14 is connected to the charging device 2
And a socket 18 for connecting the charging terminal of the secondary battery 16 to the charging device 2.

On the other hand, the charging device 2 includes a charger 20 for charging the secondary battery 16 using, for example, a household AC power source as a power source.
And a transmission / reception means 21 for exchanging data and the like with the portable terminal 1 through serial transmission or parallel transmission,
It has a modulator / demodulator 22, a clock unit 23 and a ROM 24 connected to the transmitting / receiving means 21. In addition, the plug 25 for connecting the transmitting / receiving means 21 to the transmitting / receiving means 14 through the socket 17 of the mobile terminal 1 and the charging terminal of the charger 20 through the socket 18 of the mobile terminal 1 are connected to the secondary battery 16
And a plug 26 for connecting to the charging terminal. In this embodiment, the mobile terminal 1 and the charging device 2 are connected by a socket and a plug, but they may be connected by a cable and a connector.

The clock unit 23 of the charging device 2 has a display unit 231 for displaying the current time and the set time, and a setting unit 232 for setting the time at which the portable terminal 1 is notified. If a certain time is set by the setter 232, at the time when the time arrives, the clock unit 23 causes the transmitting / receiving means 2
1 to notify the connected mobile terminal 1 that the set time has arrived. At this time, in the present embodiment, the number indicating the type of the charging device 2 previously assigned to the charging device 2 is also notified.

The modem 22 of the charging device 2 is connected to the public line 3 in this embodiment. This modem 22
Is activated from the connected mobile terminal 1 through the transmission / reception means 21, thereby acquiring display data from a display data transmission source such as a host computer (not shown) connected via the public line 3 and transmitting the display data to the mobile terminal 1. It constitutes a data acquisition means for transmission.

The ROM 24 of the charging device 2 stores in advance a display program 241 to be executed by the control means 15 when displaying the display data obtained by the modulator / demodulator 22 of the charging device 2 on the portable terminal 1. .

Next, the operation of this embodiment will be described. When the user wants to charge the secondary battery 16 of the mobile terminal 1 and acquire the display data at the same time, the user sets the setting unit 232 of the clock unit 23.
Is operated to set the time at which the display data is to be acquired in the clock unit 23, and the plug 25 is inserted into the socket 17 and the plug 26 is inserted into the socket 18, respectively.
Attach the charging device 2 to.

When the plug 26 is inserted into the socket 18 and the charger 20 is connected to the charging terminal of the secondary battery 16 in the portable terminal 1, the charger 20 starts charging the secondary battery 16.

On the other hand, when the time set by the user comes, the clock section 23 indicates to the control means 15 of the portable terminal 1 through the transmitting / receiving means 21 that the set time has come and the type of the self-charging device 2. Give the number. The control means 15 of the mobile terminal 1 executes the processing shown in FIG. 2 upon the notification. First, of the plurality of data load control programs 123 stored in the area 122 of the storage unit 12, the data load control program 123 corresponding to the type number of the charging device notified from the clock unit 23 is selected, and the main memory is selected. Then, the data load control program 123 is executed (S1).

FIG. 3 is a flow chart showing an example of processing by the execution of the selected data load control program 123. First, the control means 15 includes the transmitting / receiving means 1
An instruction is sent to the modulator / demodulator 22 through 4, 21 to call the host having the predetermined telephone number and connect the host to the line (S11). Next, the load / send of data to be displayed is requested to the host through the modulator / demodulator 22 (S12). Next, when the modulator / demodulator 22 receives the data transmitted from the host in response to the request, the modulator / demodulator 22 transmits it through the transmitting / receiving means 21, so that it is received via the transmitting / receiving means 14 and displayed in the storage means 12. The data is stored in the data storage area 121 in order from the top area (S13). Then, when reception and storage of all data are completed, an instruction is issued to the modem 22 to disconnect the line with the host (S14). Subsequently, the control means 15 reads the display program 241 from the ROM 24 of the charging device 2 via the transmission / reception means 14 and 21, and stores it in the main memory 13 (S15).

Thereafter, the control means 15 shifts the control to the display program 241 stored in the main memory 13 as shown in FIG. 2 (S2).

As described above, according to this embodiment, when the time is set in the clock unit 23 and the charging device 2 is connected to the portable terminal 1, the secondary battery 16 of the portable terminal 1 is charged and set. The display data at the time can be acquired at the same time. Therefore, the display data transmission source host is, for example, 1
When the display data is updated to the latest data at a certain time (for example, midnight) of the day, it is sufficient to set the clock unit 23 to a time slightly after midnight, for example, before going to bed. Both the charging of the secondary battery 16 and the acquisition of the latest data become possible. If only charging is performed and display data is not desired to be acquired, setting the time in the clock unit 23 may be omitted.

Now, when the charging of the secondary battery 16 is completed and the acquisition of the latest display data is completed as described above, the charging device 2 is no longer needed, so the plugs 25 and 26 are removed from the sockets 17 and 18. With this, only the mobile terminal 1 should be carried. When the user reads the data stored in the storage area 121 of the storage means 12, if the page to be read is designated by the key operation of the input means 11, the control means 15 that executes the display program 241 for the display data is executed. The contents of the relevant portion are stored in the storage area 1 of the storage means 12
It is read out from 21 and displayed on the display means 10.

The charging device 2 in the embodiment of FIG. 1 has a modulator / demodulator 22 built-in in order to obtain display data from the outside through the public line 3. However, the form of acquiring the display data from the outside by communication is not limited to the wired system by the public line, and may be a wireless system or another transmission system (for example, infrared transmission system). However, in that case, instead of the modulator / demodulator 22, it is necessary to use the charging device 2 including the data acquisition means that matches the transmission method.

FIG. 4 shows another example of the charging device. The same reference numerals as those in FIG. 1 denote the same parts, 4 is a charging device, 27 is a wireless device, 28 is an antenna, and 242 is a display program. The wireless device 27 is a receiver for teletext reception, a pager, or the like. Further, the display program 242 is executed when the display data acquired from the outside by the wireless device 27 is displayed on the display unit 10 by the control unit 15 of the mobile terminal 1 of FIG. 1 in response to the input operation of the input unit 11. It is a display program. Next, using the charging device 4, the mobile terminal 1
Recharges the secondary battery 16 of the
The process of storing in the storage means 12 will be described.

The user operates the setting unit 232 of the clock unit 23 to set the time at which the display data is desired to be acquired in the clock unit 23, and attaches the charging device 2 to the portable terminal 1 with the plugs 25 and 26. This allows the charger 20 to recharge the secondary battery 16
Is started. When the time set by the user comes, the clock unit 23 notifies the control unit 15 of the mobile terminal 1 through the transmission / reception unit 21 of the fact that the set time has arrived and the number indicating the type of the self-charging device 2. To do. The control means 15 of the mobile terminal 1 executes the processing shown in FIG. 2 upon the notification, and first, the storage area 1 of the storage means 12 is executed.
Of the plurality of data load control programs 123 stored in 22, the data load control program 123 corresponding to the type number of the charging device notified from the clock unit 23.
Is selected and copied to the main memory 13, and the data load control program 123 is executed (S1).

FIG. 5 is a flow chart showing an example of processing by the execution of the selected data load control program 123. First, the control means 15 includes the transmitting / receiving means 1
An instruction is given to the wireless device 27 through 4, 21 to receive teletext or transmission data from a predetermined station (S21). When the wireless device 27 receives the data, the data is transmitted to the portable terminal 1 through the transmission / reception means 21, so that the control means 15 receives it through the transmission / reception means 14 and stores it in the display data storage area 121 of the storage means 12 in order from the top area. Yes (S22). And after receiving and storing the data,
The operation of the wireless device 27 is stopped (S23). Subsequently, the control means 15 reads the display program 242 from the ROM 24 of the charging device 4 via the transmission / reception means 14 and 21, and stores it in the main memory 13 (S24).

After that, the control means 15 shifts the control to the display program 242 stored in the main memory 13 as shown in FIG. 2 (S2). With this, the display data acquired from the outside by wireless can be displayed on the display unit 10 at a later time and read.

In the portable terminal 1 of the above embodiment, the data load control program 1 for each type number of the charging device is used.
23 is stored in the storage means 12, and the data load control program 12 corresponding to the type number notified from the clock unit 23 of the connected charging device 2 or charging device 4
It is designed to execute 3. This is because, as illustrated in FIGS. 3 and 5, in general, if the display data transmission source is different (in other words, if the information infrastructure is different), the procedure for acquiring the display data is different. Therefore, when only one type of display data transmission source is supported, it is sufficient to store only the data load control program that matches it, and the type number notification function of the clock unit 23 can be omitted.

FIG. 6 is a block diagram of another embodiment of the portable terminal device of the present invention. The mobile terminal device of this embodiment is of a type in which display data is obtained from a floppy disk 8 loaded in a floppy disk unit 7,
It is composed of a mobile terminal 5 and a charging device 6.

The mobile terminal 5 has a display means 10 such as an LCD.
And an input means 11 provided with some kinds of keys and an EEPR
Data is stored by serial transmission or parallel transmission between the storage unit 12 composed of a rewritable non-volatile memory such as OM, the main memory 13 composed of a rewritable volatile memory such as RAM, and the charging device 2. It has a transmission / reception means 14 for transmitting and receiving data, a control means 15 such as a microprocessor connected to these, and a secondary battery 16 for supplying electric power to each unit in the mobile terminal 5. Storage means 12
Has a display data storage area 121 and a data load control program storage area 122. The latter storage area 122
One data load control program 123 is stored in advance. Further, a socket 17 for connecting the transmitting / receiving means 14 to the charging device 6 and the floppy disk unit 7 and a socket 18 for connecting the charging terminal of the secondary battery 16 to the charging device 2 are provided.

On the other hand, the charging device 6 includes a charger 20 for charging the secondary battery 16 and a transmission / reception means 21 for exchanging data and the like with the portable terminal 5 by serial transmission or parallel transmission, and this transmission / reception. It has a clock unit 23 and a ROM 24 connected to the means 21. In addition, the connection cable 64 and the plug 26 for connecting the charging terminal of the charger 20 to the charging terminal of the secondary battery 16 through the socket 18 of the mobile terminal 5, the floppy disk unit 7, and the transmitting / receiving means 21 are connected to the socket of the mobile terminal 5. Connection cable 6 for connecting to the transmitting / receiving means 14 through 17
3 and a plug 25.

The clock unit 23 of the charging device 6 has a display unit 231 for displaying the current time and the set time, and a setting unit 232 for setting the time at which the portable terminal 5 is notified. If a certain time is set by the setter 232, at the time when the time arrives, the clock unit 23 causes the transmitting / receiving means 2
1, the mobile terminal 5 connected thereto is notified that the set time has arrived.

The ROM 24 of the charging device 6 stores in advance a display program 243 to be executed by the control means 15 when displaying the display data stored in the floppy disk 8 on the portable terminal 5.

Next, the operation of this embodiment will be described. When the user wants to charge the secondary battery 16 of the mobile terminal 5 and acquire the display data at one time, the user sets the setting unit 232 of the clock unit 23.
Is operated to set the time at which the display data is to be acquired in the clock unit 23, and the plug 61 is inserted into the socket 17 and the plug 62 is inserted into the socket 18, respectively, so that the portable terminal 5
The charging device 6 and the floppy disk unit 7 are connected to.

When the plug 62 is inserted into the socket 18 and the charger 20 is connected to the charging terminal of the secondary battery 16 in the portable terminal 5, the charger 20 starts charging the secondary battery 16.

On the other hand, when the time set by the user comes, the clock section 23 notifies the control means 15 of the portable terminal 5 through the transmitting / receiving means 21 that the set time has arrived. The control means 15 of the mobile terminal 5 executes the processing shown in FIG. 7 in response to this notification. First, the storage means 12
The data load control program 123 is copied to the main memory 13 and the data load control program 123 is executed (S1). By executing the data load control program 123, the control unit 15 causes the transmission / reception unit 14 to execute.
The floppy disk 8 loaded in the floppy disk unit 7 is accessed through the table, and the display data stored therein is input and stored in the display data storage area 121 of the storage means 12. Then, after this storage, the control unit 15 controls the R of the charging device 6 via the transmitting / receiving units 14 and 21.
The display program 243 is read from the OM 24 and stored in the main memory 13. After that, the control means 15 controls the display program 243 stored in the main memory 13 as shown in FIG.
Control is transferred to (S32).

As described above, according to this embodiment, the clock unit 2
By setting the time to 3 and connecting the charging device 6 and the floppy disk unit 7 to the mobile terminal 5, the mobile terminal 5
It is possible to simultaneously charge the secondary battery 16 and acquire the display data at the set time. Here, the display data is acquired at the set time because the data of the floppy disk 8 loaded in a predetermined time zone is changed when the floppy disk 8 is periodically replaced, for example. This is so that it can be acquired. In addition, when only charging is performed and display data is not acquired, only the plug 62 is inserted into the socket 18 and the plug 61 is not inserted into the socket 17.
Alternatively, setting the time in the clock unit 23 may be omitted.

Now, when the charging of the secondary battery 16 is completed and the acquisition of the latest display data is completed as described above, the charging device 2 and the floppy disk unit 7 are no longer needed. Remove from 18. With this, only the mobile terminal 5 should be carried. When the user reads the data stored in the storage area 121 of the storage unit 12, if the page to be read is designated by the key operation of the input unit 11, the control unit 15 that executes the display program 243 for the display data is executed. Then, the contents of the relevant portion are read from the storage area 121 of the storage means 12 and displayed on the display means 10.

In the portable terminal device in the embodiment of FIG. 6,
Although the display data is acquired from the floppy disk 8, the display data may be acquired from another storage medium having a magnetic, optical, or other storage system such as a fixed disk or a CD-ROM. is there.

The embodiments of the present invention have been described above.
The present invention is not limited to the above embodiments, and various other additions and changes are possible. For example, the clock unit may be provided on the mobile terminal side.

[0046]

As described above, according to the present invention, the following effects can be obtained.

When the desired time is set in the clock section and the charger is connected to the portable terminal, charging of the secondary battery built in the portable terminal is started and data exchange is automatically started at the set time. Therefore, the amount of work of the user involved in charging the secondary battery and exchanging data can be significantly reduced.

If the setting of the time is omitted, it is possible to charge the secondary battery without replacing the display data.

A display program that matches the display data input this time can also be automatically loaded during charging.

[Brief description of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a flowchart showing an example of processing executed by a control unit of a mobile terminal triggered by a notification from a clock unit in the embodiment of FIG.

FIG. 3 is a flowchart showing an example of processing by executing a data loading control program.

FIG. 4 is a block diagram showing another example of the charging device.

5 is a flow chart showing an example of processing executed by a data loading control program when the charging device shown in FIG. 4 is connected to a mobile terminal.

FIG. 6 is a block diagram of another embodiment of the present invention.

FIG. 7 is a flowchart showing an example of processing executed by the control means of the mobile terminal triggered by the notification from the clock unit in the embodiment of FIG.

FIG. 8 is a block diagram of a conventional mobile terminal device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Portable terminal 10 ... Display means 11 ... Input means 12 ... Storage means 121 ... Display data storage area 122 ... Data load control program case area 123 ... Data load control program 13 ... Main memory 14 ... Transmitting / receiving means 15 ... Control means 16 ... Secondary battery 17, 18 ... Socket 2 ... Charging device 20 ... Charger 21 ... Transmission / reception means 22 ... Modulator / demodulator 23 ... Clock part 231 ... Indicator 232 ... Setting device 24 ... ROM 241 ... Display program 25, 26 ... Plug 3 ... Public line

Claims (7)

[Claims] 1. A rewritable storage means for storing data to be displayed, a display means for displaying the data stored in the storage means, and data input from the outside while being stored in the storage means. A portable terminal operating on a secondary battery, the portable terminal having a control means for displaying the data stored in the storage means on the display means in response to an input operation of the means, and the portable terminal when the secondary battery is charged. A charging unit for charging the secondary battery, and a clock unit for notifying the control unit when the set time arrives, and the control unit controls the arrival of the set time from the clock unit. A mobile terminal device, characterized in that, when notified, a process of inputting data to be displayed from the outside and starting a process of storing the data in the storage means. 2. The mobile phone according to claim 1, further comprising a data acquisition unit that is activated by the control unit to acquire display data from a display data transmission source by communication and transmit the display data to the control unit. Terminal device. 3. The mobile terminal device according to claim 2, wherein the charger, the clock unit, and the data acquisition unit are housed in a charging device that is removable from the mobile terminal. . 4. A non-volatile storage device for storing a display program in the charging device, the display program being executed when the control means displays the data stored in the storage means on the display means in response to an input operation of the input means. Memory, the control means stores data from the outside in the storage means, inputs a display program stored in the non-volatile memory, and uses as a display program for the data stored in the storage means. The mobile terminal device according to claim 3, wherein the mobile terminal device has the configuration described below. 5. The mobile terminal device according to claim 1, wherein the control means has a configuration for inputting display data from an external storage device connected to the mobile terminal. 6. The mobile terminal device according to claim 5, wherein the charger and the timepiece unit are housed in a charging device that is detachable from the mobile terminal. 7. A non-volatile storage device for storing a display program in the charging device, the display program being executed when the control means displays the data stored in the storage means on the display means in response to an input operation of the input means. A non-volatile memory, the control means stores the data from the external storage device in the storage means, inputs the display program stored in the non-volatile memory, and displays the data stored in the storage means. The mobile terminal device according to claim 6, wherein the mobile terminal device is configured to be used as a program.