JPH08202655A - Data communication device - Google Patents

Abstract

PURPOSE: To provide a data communication device through which each user of a communication terminal can easily obtain data adapted to the user without paying attention to the selection of the data. CONSTITUTION: The user identification information input part 111 of the communication terminal 11 inputs user identification information U on each user. The user identification information U is sent to an individual information retrieval part 213 through a transmission part 112 and the reception part 211 of a host computer 21. The individual information retrieval part 213 retrieves individual information P corresponding to the user identification information U received from the communication terminal 11 in an individual information recording part 212. A sent data generation part 214 has common data D0 and edits the common data D0 on the basis of the individual information P outputted from the individual information retrieval part 213 to generate sent data D adapted to the user of the individual information P.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data communication device used for exhibition guidance at a venue of an ethnic exhibition, catalog guidance for mail order, and more specifically, it can be shared by a plurality of users. The present invention relates to a data communication device in which a host computer having shared data and a communication terminal that can be shared by a plurality of users are connected to each other so that they can communicate with each other.

[0002]

2. Description of the Related Art FIG. 11 is a block diagram showing the configuration of a conventional data communication device. Such a data communication device is used, for example, in exhibition guidance at a venue of an ethnic exhibition. In FIG. 11, a host computer 2000 having shared data that can be shared by a plurality of users,
A communication terminal 1000 that can be shared by a plurality of users is connected to be able to communicate with each other. The communication terminal 1000 includes an operation input unit 1001, a transmission unit 1002, and a reception unit 100.
3 and 3. The host computer 2000 includes a reception unit 2001, a transmission data selection unit 2002 having the shared data D0, and a transmission unit 2003.

The user of the communication terminal 1000 can select a menu (for example, Asia, Africa, ..., North America, Europe) displayed on the display (not shown) of this terminal.
A desired item is selected from, and the operation input unit 1001 is operated to input the selected item, that is, the operation information S (for example, Asia). The operation input unit 1001 outputs the operation information S to the transmission unit 1002. The transmission unit 1002 transmits the operation information S to the host computer 2000.

Receiving section 20 of host computer 2000
01 indicates the received operation information S by the transmission data selection unit 200
Output to 2. The transmission data selection unit 2002 is
Shared data of Africa, ..., North America, Europe D
The shared data D0 based on the operation information S, that is, the shared data of Asia is selected from 0. Transmitter 2003
Transmits the Asian shared data D0 to the communication terminal 1000. The receiving unit 1003 of the communication terminal 1000 receives the Asian shared data D0 and displays it on the display.

[0005]

However, since the conventional data communication device outputs the shared data as it is without any editing, the same menu and the same data can be obtained regardless of which user operates the communication terminal. I only got it.

By the way, for example, various people such as adults, children, and foreigners come to the venue of the ethnic exhibition. In such a case, if text data including Chinese characters for adults is prepared as shared data, children and foreigners cannot understand this text data. It is possible to prepare hiragana text data or foreign language text data as shared data for children and foreigners, but the amount of shared data will be huge and each user will have a huge amount of data. It becomes difficult to select the data that is suitable for one's own. Such a situation was the same in catalog guidance and the like in mail order. Therefore, the conventional data communication device has a problem that it is difficult to provide the data adapted to each user without being aware of the selection of the data.

Therefore, an object of the present invention is to provide a data communication device reception in which each user of a communication terminal can easily obtain data adapted to each user without being aware of the selection of the data. And

[0008]

The invention according to claim 1 is
A data communication device in which a host computer having shared data that can be shared by a plurality of users and a communication terminal that can be shared by a plurality of users are connected to each other so that they can communicate with each other. The host computer includes a user identification information input unit for inputting person identification information and a first transmission unit for transmitting the user identification information output from the user identification information input unit to the host computer. From the personal information recording section, the personal information recording section that records the user identification information of each user and the personal information of each user in association with each other and the personal information corresponding to the user identification information received from the communication terminal from the personal information recording section It has a personal information search part to search and shared data, and by editing the shared data based on the personal information output from the personal information search part, it is possible to send the personal information suitable for the user. The communication terminal further includes a transmission data creation unit that creates data, and a second transmission unit that sends the transmission data created by the transmission data creation unit to the communication terminal. The communication terminal further receives the transmission data sent from the host computer. A receiver is provided.

A second aspect of the present invention is a data communication device in which a host computer having shared data that can be shared by a plurality of users and a communication terminal that can be shared by a plurality of users are connected so that they can communicate with each other. Given to each user,
The communication terminal includes a personal information recording medium recording the personal information of each user, and the communication terminal transmits the personal information reading unit that reads the personal information from the personal information recording medium and the personal information read by the personal information reading unit to the host computer. The host computer includes the first transmission unit, has shared data shared by each user, and adapts to the user by editing the shared data based on the personal information output from the personal information search unit. The communication terminal further includes a transmission data creation unit that creates the transmission data, and a second transmission unit that sends the transmission data created by the transmission data creation unit, and the communication terminal further receives the transmission data sent from the host computer. Equipped with.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the invention, the communication terminal further includes an operation input unit that outputs operation information representing a partial selection operation of the shared data input by the user, and the first transmission unit further includes the operation information output from the operation input unit. To the host computer,
The transmission data creation unit further creates transmission data based on the user's operation information and personal information, and the host computer further records the transmission data created by the transmission data creation unit for each user. A transmission data recording unit is provided.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the communication terminal further includes an operation input section for outputting operation information indicating a partial selection operation of the shared data input by the user, The transmission unit further transmits the operation information output from the operation input unit to the host computer, and the transmission data creation unit further creates transmission data based on the user's operation information and personal information, and the personal information recording unit. Is characterized in that the operation information is recorded for each user as personal information indicating a history of partial selection for past shared data.

The invention according to claim 5 is claim 1 or 2.
In the invention described above, the transmission data creation unit has a text storage unit of a host computer for storing text data including Kanji as shared data and a reading and difficulty level of the Kanji, and a threshold of the difficulty level of the Kanji from personal information. Based on the threshold value determined by the difficulty level threshold value determining unit and the difficulty level threshold value determining unit, kanji that are more difficult than the threshold value of the text data stored in the text storage unit are generated. The communication terminal further includes a transmission text data generation unit that generates transmission text data by replacing with Hiragana, and the communication terminal further includes a display unit that displays the transmission text data transmitted from the host computer.

The invention according to claim 6 is the invention according to claim 1 or 2.
In the invention of claim 1, the transmission data creation unit is based on the personal data, a text storage unit that stores text data in a predetermined reference language as shared data, a font storage unit that stores font data of each language as shared data. A target language determining unit that determines the target language corresponding to the user of the communication terminal, and a translation unit that translates the text data of the reference language stored in the text storage unit into the target language and creates the transmission text data. , The first transmitter is
Out of the font data of each language stored in the font storage unit, the font data of the target language determined by the target language determination unit is transmitted, and the transmission text data of the target language created by the translation unit is transmitted and communicated. The terminal is
The system further includes a font storage unit that stores font data received from the host computer, and a display unit that displays the transmission text data received from the host computer using the font data stored in the font storage unit.

[0014]

In the invention according to claim 1, the shared data is edited based on the personal information corresponding to the user identification information received from the communication terminal, thereby creating the transmission data suitable for the user of the personal information. Then, the created transmission data is transmitted to the communication terminal. As a result, the amount of shared data is reduced, and the user can easily select the data. Therefore, the user can obtain the data adapted to the user himself without being aware of the selection of the data.

In the invention according to claim 2, by editing the shared data based on the personal information received from the communication terminal, transmission data suitable for the user of the personal information is created, and the created transmission data is created. Is transmitted to the communication terminal. As a result, the amount of shared data is reduced, and the user can easily select the data. Therefore, the user can obtain the data adapted to the user himself without being aware of the selection of the data.

In the invention according to claim 3, the transmission data is created based on the operation information of the user and the personal information,
The transmission data created by the transmission data creating unit is recorded separately for each user. As a result,
The user can access the transmission information received by himself / herself without operating the communication terminal again.

In the invention according to claim 4, the operation information is recorded for each user as personal information indicating a history of partial selection for past shared data, and transmitted based on the operation information of the user and the personal information. I try to create data. As a result, the user can distinguish the information that has been accessed in the past from the information that has not been accessed yet. Therefore, it becomes easy to access the unaccessed data.

In the invention according to claim 5, as shared data, text data including kanji and kanji reading and difficulty are stored, and a threshold of kanji difficulty is determined from personal information. , Based on the threshold value determined by the difficulty threshold value determination unit, replaces Kanji that is more difficult than the threshold value of the text data stored in the text storage unit with Hiragana to create the transmission text data I am trying. As a result, it is possible to display a sentence including kanji according to the level at which the user knows kanji. Therefore, the user can easily understand the text data.

In the invention according to claim 6, text data is stored as shared data in a predetermined reference language, font data of each language is stored as shared data, and the communication terminal of the communication terminal is stored based on personal information. The target language corresponding to the user is determined, the text data of the reference language stored in the text storage unit is translated into the target language to create send text data, the font data received from the host computer is stored, and the font is stored. The transmitted text data received from the host computer is displayed using the font data stored in the storage unit. As a result, the sentence can be displayed according to the language used by the user. Therefore, the user can easily understand the text data.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the data communication apparatus according to the first embodiment of the present invention. Such a data communication device is used, for example, in exhibition guidance at a venue of an ethnic exhibition. In FIG. 1, a host computer 21 having shared data that can be shared by a plurality of users and a communication terminal 11 that can be shared by a plurality of users are connected so as to be able to communicate with each other. The communication terminal 11 includes a user identification information input unit 111, a transmission unit 112, and a reception unit 113. The host computer 21 includes a receiving unit 211,
The personal information recording unit 212, the personal information searching unit 213, the transmission data creating unit 214 having the shared data D0, and the transmitting unit 215 are provided.

For each user of the communication terminal 11, user identification information such as an ID number (for example, "000001",
“000002”, ...) Is added. When using the communication terminal 11, each user inputs the user identification information U from the user identification information input unit 111. The user identification information input unit 111 may be a button such as a numeric keypad or a reader of a magnetic card such as an ID card. The transmission unit 112 transmits the user identification information U input to the user identification information input unit 111 to the host computer 21.

FIG. 2 is a diagram showing the configuration of the personal information management table T managed by the personal information recording unit 212. The personal information management table T includes an ID number as user identification information U of each user, an age as personal information P of each user,
It records in correspondence with nationality, number of visits, items that have been seen, and so on.

Receiving unit 211 of host computer 12
Outputs the user identification information U received from the communication terminal 11 to the personal information search unit 213. Personal information search unit 106
When the user identification information U (for example, "000001") is received, the personal information management table T of the personal information recording unit 212 is searched, and the personal information P corresponding to the user identification information U is searched and searched. The personal information P is sent to the transmission data creation unit 2
It outputs to 14.

The transmission data creating section 214 edits the shared data D0 based on the personal information P to create the transmission data D suitable for the user of the personal information P.
Here, editing means rearranging the shared data D0, adding some operation to the shared data D0 such as translation. The transmission unit 215 includes a transmission data creation unit 214.
The transmission data D output from is output to the communication terminal 11. The reception unit 113 of the communication terminal 11 receives the transmission data D transmitted from the host computer 21. Therefore, each user can obtain the data adapted to each user without being aware of the selection of the data.

FIG. 3 is a block diagram showing the configuration of the data communication apparatus of the second embodiment of the present invention. The parts corresponding to those in the embodiment of FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. What should be noted in the embodiment of FIG.
Personal information storage medium 32 is given to each user of
That is, the personal information P is stored in the personal information storage medium 32. For this reason, the communication terminal 12 is provided with a personal information recording medium reading unit 121 in place of the user identification information input unit 111 of FIG. Also, the host computer 2
2, the personal information recording unit 212 and the personal information searching unit 213 provided in the host computer 21 of FIG.
Has been deleted. The personal information storage medium 32 is formed of a magnetic card, a barcode, a mark sheet, or the like.

When the user uses the communication terminal 12,
The user's own personal information storage medium 32 is inserted into the personal information recording medium reading unit 121 of the communication terminal 12. The personal information recording medium reading unit 121 reads the personal information P from the personal information storage medium 32. The read personal information P is sent to the transmission unit 112,
The data is transmitted to the transmission data creation unit 214 via the reception unit 211 of the host computer 22, respectively. The subsequent operation is similar to that of the embodiment of FIG. Therefore, each user can obtain the data adapted to each user without being aware of the selection of the data.

FIG. 4 is a block diagram showing the configuration of the data communication apparatus according to the third embodiment of the present invention. The parts corresponding to those in the embodiments of FIGS. 1 and 3 are designated by the same reference numerals,
The description is omitted. What should be noted in the embodiment of FIG. 4 is that the communication terminal 13 is provided with the operation input unit 131, and the host computer 23 is provided with the transmission data recording unit 231.

By operating the operation input unit 131, the user selects a desired data portion (for example, North America) by selecting a menu or the like. Operation input unit 131
Outputs the operation information S representing the partial selection operation of the shared data D0 input by the user. The transmission unit 112 uses the user identification information U output from the user identification information input unit 111.
And user identification information U output from the operation input unit 131
And are transmitted to the host computer 23.

The transmission data creation unit 302 creates transmission data D (for example, North America) based on the personal information P output from the personal information search unit 213 and the operation information S output from the reception unit 211. The transmission data D is transmitted by the transmission unit 21.
5 and the transmission data recording unit 231. The transmission data recording unit 231 records the transmission data D separately for each user. The moving image data can be recorded on a video tape or a digital video disk for each user and taken back. Therefore, the transmission data D received at home can be reproduced. Also, the communication terminal 1
It is also possible to retrieve the transmission data D received later without using 3.

FIG. 5 is a block diagram showing the configuration of the data communication apparatus according to the fourth embodiment of the present invention. The parts corresponding to those in the embodiments of FIGS. 1, 3 and 4 are designated by the same reference numerals, and the description thereof will be omitted. What should be noted in the embodiment of FIG. 5 is the same as the configuration of the personal information recording unit 212 described in the first embodiment, but the personal information is partially selected by accessing the operation information S in the past (for example, in Asia). , Europe) as personal information (see the column of “items I have seen” in FIG. 2) indicating the history for each user.

The operation input unit 131 of the communication terminal 13 outputs operation information S indicating a partial selection operation of the shared data D0 input by the user. The transmission data creation unit 214 creates the transmission data D based on the operation information S of the user and the personal information P. The transmission data D includes a selection menu M shown in FIG. The transmission data creation unit 214,
When the selection menu M is created, the user can distinguish and display Asia and Europe that have been accessed in the past and Africa, North America, etc. that have not been accessed yet. Therefore, the user can accurately obtain data such as Africa and North America, which have not been seen yet.
The already accessed data may not be displayed in the selection menu M.

FIG. 7 is a block diagram showing the configuration of the data communication apparatus according to the fifth embodiment of the present invention. The parts corresponding to those in the embodiments of FIGS. 1, 3, 4 and 5 are designated by the same reference numerals, and the description thereof will be omitted. It should be noted in the embodiment of FIG. 7 that the transmission data creation unit 214 of the host computer 25 includes a text storage unit 251, a difficulty threshold value determination unit 252, and a transmission text data creation unit 253. 15 is provided with the display unit 151.

As shown in FIG. 8, the text storage unit 251 stores, as the shared data D0, text data containing Chinese characters, and the reading and difficulty level of the Chinese characters (for example, in what grade of elementary school the Chinese character is learned). are doing. The difficulty threshold determination unit 252 sets the threshold of the kanji difficulty from, for example, elementary school 3 based on the personal information P (for example, the user is in the third grade of elementary school).
Determine in year. The transmission text data creation unit 253, based on the threshold value determined by the difficulty threshold value determination unit 252, is a Chinese character that is more difficult than the threshold value of the text data stored in the text storage unit 251, that is, elementary school 3 Transmission text data D is created by replacing the kanji learned after the year with hiragana. The display unit 151 of the communication terminal 15 displays the transmission text data transmitted from the host computer 25.

Therefore, it is possible to provide a sentence using only the kanji in the readable range according to each user. Note that the communication terminal and the host computer may have an integrated function, and may be implemented in a data communication device such as an electronic book.

FIG. 9 is a block diagram showing the configuration of the data communication apparatus according to the sixth embodiment of the present invention. The parts corresponding to those in the embodiments of FIGS. 1, 3, 4, 5, and 7 are designated by the same reference numerals, and the description thereof will be omitted. It should be noted in the embodiment of FIG. 9 that the transmission data creation unit 214 of the host computer 26 includes a text storage unit 261, a font storage unit 262, a target language determination unit 263, and a translation unit 26.
4 is included, and the communication terminal 16 includes a font storage unit 161.

The text storage unit 261 stores the shared data D0.
The text data is stored in a predetermined reference language (for example, Japanese or an intermediate language suitable for translation). The font storage unit 262 stores the shared data D0 as
The font data of each language is stored. The personal information includes information indicating the language used such as nationality (see the column of "nationality" in FIG. 2). Target language determination unit 263
If it is known that the user is an American, for example, based on the personal information P, the target language English corresponding to the user of the communication terminal 16 is determined. The translation unit 264 translates the text data in the reference language stored in the text storage unit 261 into English, which is the target language, to create English transmission text data. The text storage unit 251 transmits font data of English, which is the target language determined by the target language determination unit 263, out of the font data of each language stored in the font storage unit 262, and is created by the translation unit 264. Send text data in the target language.

The font storage unit 161 of the communication terminal 16 is
The font data received from the host computer 26 is stored. The display unit 151 displays the transmission text data received by the host computer 26 using the font data stored in the font storage unit 161.

Therefore, it is possible to provide a readable sentence in the used language according to the user. As in the fifth embodiment, the communication terminal and the host computer may be integrated into a data communication device such as an electronic book.

In the above-mentioned embodiment, the data communication device is used for the exhibition guide at the venue of the ethnic exhibition, but it may be used for the catalog guide in the mail order. In the case of catalog information,
The structure of the personal information management table T of the personal information recording unit 212 may be provided with personal information P such as name, sex, size, etc., as shown in FIG.

Although the user identification information U is input from the communication terminal in the embodiments shown in FIGS. 4, 7, and 9, the personal information P may be input.

[0041]

The invention according to claim 1 is adapted to the user of the personal information by editing the shared data based on the personal information corresponding to the user identification information received from the communication terminal. Since the transmission data is created and the created transmission data is transmitted to the communication terminal, the amount of shared data is reduced, the user can easily select the data, and the user can select the data. It is possible to obtain data adapted to the user's own without being aware of it.

According to the second aspect of the invention, the shared data is edited based on the personal information received from the communication terminal to create the transmission data suitable for the user of the personal information. Since the transmission data is transmitted to the communication terminal, the data amount of the shared data is reduced, the user can easily select the data, and the user does not have to be aware of the data selection. It is possible to obtain data adapted to.

According to the invention of claim 3, the transmission data is created based on the operation information of the user and the personal information,
Since the transmission data created by the transmission data creation unit is recorded separately for each user, the user can access the transmission information received by himself / herself without operating the communication terminal again.

In the invention according to claim 4, the operation information is recorded for each user as personal information indicating a history of partial selection for past shared data, and based on the operation information and the personal information of the user. Since the transmission data is created by the user, it becomes possible for the user to distinguish the information that has been accessed in the past from the information that has not been accessed, and it becomes easy to access the data that has not been accessed.

In the invention according to claim 5, as shared data, text data including kanji, kanji reading and difficulty level are stored, and the kanji difficulty level threshold is stored from personal information. Based on the threshold value determined by the difficulty threshold value determination unit, the transmitted text data is converted by replacing the Kanji that is harder than the threshold value of the text data stored in the text storage unit with Hiragana. Since the text is created, it is possible to display the sentence including the kanji according to the level at which the user knows the kanji, and the user can easily understand the text data.

In the invention according to claim 6, text data is stored as shared data in a predetermined reference language, font data of each language is stored as shared data, and communication is performed based on personal information. The target language corresponding to the user of the terminal is determined, the text data of the reference language stored in the text storage section is translated into the target language to create send text data, and the font data received from the host computer is stored. Since the transmitted text data received from the host computer is displayed using the font data stored in the font storage unit, the text can be displayed according to the language used by the user. Can easily understand text data.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a data communication device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a personal information management table T managed by a personal information recording unit 212 of FIG.

FIG. 3 is a block diagram showing a configuration of a data communication device according to a second embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a data communication device according to a third embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a data communication device according to a fourth embodiment of the present invention.

FIG. 6 is a diagram showing a configuration of a selection menu M.

FIG. 7 is a block diagram showing a configuration of a data communication device according to a fifth embodiment of the present invention.

8 is a diagram showing a structure of text data containing Chinese characters stored in a text storage unit 251 of FIG.

FIG. 9 is a block diagram showing a configuration of a data communication device according to a sixth embodiment of the present invention.

10 is a diagram showing the configuration of another personal information management table T managed by the personal information recording unit 212. FIG.

FIG. 11 is a block diagram showing a configuration of a conventional data communication device.

[Explanation of symbols]

11, 12, 13, 15, 16 ... Communication terminals 21, 22, 23, 24, 25, 26 ... Host computer 32 ... Personal information storage medium 111 ... User identification information input unit 112, 215 ... Transmission unit 113, 211 ... Receiving unit 131 ... Operation input unit 151 ... Display unit 161 ... Font storage unit 212 ... Personal information recording unit 213 ... Personal information searching unit 214 ... Transmission data creating unit 231 ... Transmission data recording unit 251 ... Text storage unit 252 ... Difficulty level Threshold value determination unit 253 ... Transmission text data creation unit 261 ... Text storage unit 262 ... Font storage unit 263 ... Target language determination unit 264 ... Translation unit

Claims (6)

[Claims] 1. A data communication device comprising a host computer having shared data sharable by a plurality of users and a communication terminal sharable by a plurality of users, which are communicably connected to each other. A user identification information input section for inputting user identification information of each user, and a first transmission section for transmitting the user identification information output from the user identification information input section to the host computer. The host computer includes a personal information recording unit that records user identification information of each user of the communication terminal and personal information of each user in association with each other, user identification information received from the communication terminal. A personal information searching unit that searches the personal information recording unit for personal information corresponding to, sharing the shared data based on the personal information output from the personal information searching unit. A transmission data creation unit that creates transmission data adapted to the user of the personal information by editing, and a second transmission unit that sends the transmission data created by the transmission data creation unit to the communication terminal The data communication device, wherein the communication terminal further includes a reception unit that receives transmission data transmitted from the host computer. 2. A data communication device comprising a host computer having shared data sharable by a plurality of users and a communication terminal sharable by a plurality of users, which are communicably connected to each other. The communication terminal is provided with a personal information recording medium in which personal information of each user is recorded, the communication terminal includes a personal information reading unit for reading personal information from the personal information recording medium, and personal information read by the personal information reading unit. Is transmitted to the host computer, the host computer has shared data shared by each user, and edits the shared data based on the personal information output from the personal information search unit. By doing so, a transmission data creation unit that creates transmission data suitable for the user and a second transmission data that is created by the transmission data creation unit A transmitting unit, the communication terminal includes a receiving unit further receives the transmission data transmitted from the host computer, a data communication apparatus. 3. The communication terminal further includes an operation input unit that outputs operation information indicating a partial selection operation of shared data input by a user, and the first transmission unit further outputs from the operation input unit. The transmitted operation information to the host computer, the transmission data creation unit further creates transmission data based on the operation information of the user and personal information, and the host computer further created by the transmission data creation unit The data communication apparatus according to claim 1, further comprising a transmission data recording unit that records the generated transmission data for each user separately. 4. The communication terminal further includes an operation input unit that outputs operation information indicating a partial selection operation of shared data input by a user, and the first transmission unit further outputs from the operation input unit. The transmitted operation information to the host computer, the transmission data creation unit further creates transmission data based on the user's operation information and personal information, and the personal information recording unit stores the operation information in the past. The data communication device according to claim 1, wherein the data is recorded for each user as personal information indicating a history of partial selection for the shared data. 5. The transmission data creation unit, as the shared data, text data including Chinese characters,
A text storage unit of a host computer that stores the reading and difficulty level of Chinese characters, a difficulty threshold value determining unit that determines a threshold value of the Chinese character difficulty level from the personal information, and a difficulty level threshold value determining unit. Based on the threshold value determined by the, including a transmission text data creation unit that creates the transmission text data by replacing the Kanji that is harder than the threshold of the text data stored in the text storage unit with Hiragana, The data communication device according to claim 1, wherein the communication terminal further includes a display unit that displays transmission text data transmitted from the host computer. 6. The transmission data creation unit is a text storage unit that stores text data in a predetermined reference language as shared data, a font storage unit that stores font data of each language as shared data, and personal information. A target language determining unit that determines a target language corresponding to the user of the communication terminal based on the translation, and a translation that translates the text data of the reference language stored in the text storage unit into the target language to create transmission text data. The first transmitting unit transmits the font data of the target language determined by the target language determining unit out of the font data of each national language stored in the font storage unit, and the first transmitting unit creates the translation unit. Transmitting the transmitted text data in the target language, the communication terminal further receives the font data received from the host computer. The data communication according to claim 1 or 2, further comprising: a font storage unit for storing data, and a display unit for displaying transmission text data received from the host computer using the font data stored in the font storage unit. apparatus.