JP3483487B2 - Mobile information terminal device, medium, and communication system - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to a mobile information terminal device,
The present invention relates to a medium and a communication system, and more particularly to a technique for reducing communication cost when a data transmission source and a mobile information terminal device are connected via a wireless line.

[0002]

2. Description of the Related Art Due to the spread of mobile phones and the downsizing of computers, mobile information terminal devices that can access the Internet, receive e-mails addressed to themselves, and browse web pages have become widespread. It's starting.

Such a mobile information terminal device is configured to include, for example, a mobile phone, a modem and a small computer. At this time, the mobile phone may be separate from the small computer or may be built in the small computer. Then, the original data is demodulated by the modem from the voice signal received by the mobile phone, and the data is used in an application such as a mailer or web page which is executed in advance on the computer. The communication environment of such a conventional mobile information terminal device is, in short, a general fixed communication environment composed of a wired telephone line, a modem and a computer, in which the wired telephone line is replaced with a wireless telephone line by a mobile phone. It's built simply.

[0004]

However, in such a conventional mobile information terminal device, when the mobile phone is not in a good radio wave condition and cannot receive all the necessary data by one reception, the mobile information terminal device is repeatedly used. There is a problem that the data transmission request is repeated and communication time is wasted.

This problem leads not only to the problem of increased communication cost but also to the problem of shortening the battery life of the mobile information terminal device.

The present invention has been made in view of the above problems, and an object of the present invention is to limit the amount of received data according to the radio wave condition and reduce unnecessary repetition of data transmission requests to a data transmission source. It is to provide a mobile information terminal device, a medium, and a communication system capable of performing.

[0007]

In order to solve the above problems, a mobile information terminal device according to the present invention is a data receiving means for receiving hypertext data including binary data from a data transmission source via a wireless line. And a radio wave condition information acquisition means for acquiring the radio wave condition information of the wireless line,
According to the radio wave condition information, the front of the data receiving means
The reception limiting means for limiting the reception of the binary data among the hypertext data.

Further, the mobile information terminal device according to the present invention
In one aspect, the reception limiting means is configured to provide the binary data.
Based on the data amount of the data and the radio wave condition information,
It limits the reception of inventory data .

Further, the mobile information terminal device according to the present invention is an electronic device including attached file data from a data transmission source.
Data receiver who receives mail data via wireless line
And the radio wave condition for acquiring the radio wave condition information of the wireless line
Information acquisition means and the data according to the radio wave condition information
Of the e-mail data sent by the receiving means, the attachment
And a reception restriction means for restricting reception of files.
There is .

In addition, a mobile information terminal device according to the present invention
In one aspect of the present invention, the reception restriction means is
Based on the data volume of the
Note that the reception of attached file data is restricted .

Further, the mobile information terminal device according to the present invention
In one aspect, the radio wave condition information includes reception level information.
It

Further, the medium according to the present invention is wireless communication.
A computer configured to be connectable to a device
Binary data that the communication device receives via the wireless line
Mobile information terminal equipment that processes hypertext data containing
On a medium that stores a program to function as
The radio wave condition of the wireless line from the wireless communication device
Radio wave condition information acquisition means for acquiring information, and the radio wave condition
Status information by the wireless communication device according to the status information.
Restrict the reception of the binary data among the text data
In order to make the computer function as a reception limiting means
It is a record of the program.

[0013] In addition, the medium according to the present invention is a file attached to a computer which is configured to be connectable to a wireless communication device and which is received by the wireless communication device via a wireless line.
A medium for recording a program for functioning as a mobile information terminal device for processing electronic mail data including a data , the radio condition information acquiring means for acquiring radio condition information of the wireless line from the wireless communication device, and According to the radio wave condition information, the electronic mail of the electronic mail by the wireless communication device
Of these, a program for operating a computer is recorded as a reception limiting means for limiting the reception of the attached file data .

The communication system according to the present invention is communicatively connected to the server via a communication line including a wireless line, transmits a data transmission request to the server, and returns from the server. Binary data
In a communication system including a mobile information terminal device that receives hypertext data including the mobile information terminal device, the mobile information terminal device acquires the radio condition information acquisition unit that acquires radio condition information of the wireless line, and the mobile information terminal device acquires the radio condition information acquisition unit. And a radio wave condition transmitting means for transmitting the radio wave condition information to the server, wherein the server is configured to transmit the mobile information in response to the data transmission request based on the radio wave condition information received from the mobile information terminal device. Ha to reply to the terminal
The amount of binary data is
Selective from multiple different hypertext data
In addition, the data changing means for changing is included.

Further, the communication system according to the present invention is
A server and the server via a communication line including a wireless line
Communication connection is made and a data transmission request is sent to the server
The attached file returned from the server.
Mobile information terminal device that receives e-mail data including data
And a mobile communication terminal including:
The device is the radio wave condition that acquires the radio wave condition information of the wireless line.
Information acquisition means and the radio wave condition information acquisition means.
The radio wave condition for transmitting the radio wave condition information to the server
Transmission means, wherein the server is the mobile information terminal.
Based on the radio condition information received from the device, the data
Data sent back to the mobile information terminal device in response to a data transmission request.
The amount of attachment data differs from the child mail data.
Select from the multiple email data
It includes a means for changing data. In addition, according to one aspect of the communication system according to the present invention, the radio condition information, Ru reception level der.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will now be described in detail with reference to the drawings.

Embodiment 1. FIG. 1 is a diagram showing an overall configuration of a communication system according to an embodiment of the present invention. The communication system 10 shown in the figure includes a mobile information terminal device 12, a base station 14, the Internet 16, a mail server 18, and W.
It is configured to include a WW server 20. The mobile information terminal device 12 is configured to include wireless communication means as described later, and is capable of transmitting / receiving data to / from the base station 14 also configured to include wireless communication means. ing. That is, the base station 14 is connected to the Internet 16, and it becomes possible to acquire necessary information from the mail server 18 and the WWW server 20 connected to the Internet 16 and send it to the mobile information terminal device 12. ing.

FIG. 2 shows a communication system 1 already shown in FIG.
2 is a diagram showing a configuration of a mobile information terminal device 12 at 0. FIG. As shown in the figure, the mobile information terminal device 12 is configured to include a data processing unit 22 and a PHS communication unit 24. The data processing unit 22 includes a CPU, a memory, and an LCD
It is a small computer configured to include a display such as, and has a web browser 26a and a mailer 26b installed as applications 26. This installation is performed from an information storage medium such as a PC card or an external storage device (not shown). In this case, a program for causing the computer to function as the mobile information terminal device according to the present invention is stored in the information storage medium.

The data processing unit 22 is provided with a communication control unit 28. The communication control unit 28 is the PHS communication unit 2
4 and the application 26, the signal level of the received wave (reception level) is acquired from the PHS communication unit 24 at predetermined time intervals and stored in the radio wave condition storage unit 30 as radio wave condition information. The web browser 26a and the mailer 26b included in the application 26 refer to the radio wave condition information stored in the radio wave condition storage unit 30 as appropriate to restrict data reception via the PHS communication unit 24.

That is, in the mobile information terminal device 12, as shown in FIG.
The processing performed by the mailer 26b is changed. For example, when the radio wave condition information stored in the radio wave condition storage unit 30 is the reception level n, the web browser 26a performs the web process n, and the mailer 26b performs the mail process n (n = 0 to 4). ).

In the above configuration, the application 26, the communication control unit 28, and the PHS communication unit 24 function as data receiving means for receiving required data from the data transmission source via the wireless line. In addition, the communication control unit 28 and P
The HS communication unit 24 functions as a radio wave condition information acquisition unit that acquires radio wave condition information of a wireless line. Further, the application 26 functions as a reception limiting unit that limits data reception by the data receiving unit according to the radio wave condition information.

The operation of each component of mobile information terminal apparatus 12 according to Embodiment 1 of the present invention will be described below.

FIG. 4 is a flow chart for explaining the operation of the communication control unit 28 included in the data processing unit 22. As shown in the figure, the communication control unit 28 first inquires of the PHS communication unit 24 about the reception level (S101). Then, the response from the PHS communication unit 24 to the inquiry is received (S102) and written in the radio wave condition storage unit 30 (S103). Thus, the communication control unit 28 has an interface function between the application 26 and the PHS communication unit 24, and at the same time, the PHS communication unit 24.
The reception level at the radio wave is acquired and the reception level is stored in the radio wave condition storage unit 30.
It has a function to store as radio wave condition information.

Next, FIG. 5 is a flow chart for explaining the operation of the PHS communication section 24. As shown in the figure, the PHS communication unit 24 first acquires the signal level (reception level) of the received wave from the base station 14 (S201). Then, it is determined whether or not there is a reception level inquiry from the communication control unit 28 (S202), and if there is an inquiry, the reception level acquired in S201 is sent to the communication control unit 28 (S203).
On the other hand, if there is no inquiry about the reception level, the base station 1
The reception level is acquired from No. 4 (S201).

FIG. 6 is a flow chart for explaining the operation of the web browser 26a installed as one of the applications 26 of the data processing unit 22. As shown in the figure, the web browser 26a starts the communication control unit 2 when started.
8 performs line connection processing with the base station 14 (S30
1). Then, the radio wave condition information already acquired by the communication control unit 28 and stored in the radio wave condition storage unit 30 is acquired (S302). When the reception level 0 is stored as the radio wave condition information (S303), the web processing 0
Is performed (S305). As the web process 0, for example, a process of immediately stopping the sending of the URL to the WWW server 20 is performed. After that, the fact that it is out of range is displayed on a display (not shown) included in the data processing unit 22 (S
308).

On the other hand, when the radio wave condition information stored in the radio wave condition storage unit 30 is other than the reception level 0 (S30
3), in the web browser 26a, w according to the reception level
The eb process is performed (S304). The processing in S304 will be described in detail later.

Then, the web browser 26a displays S304.
In the hypertext data displayed in,
It is determined whether or not a transition to the next page is instructed (S30
6) If the instruction to move to the next page is given, the radio wave condition information stored in the radio wave condition storage unit 30 is referred to again (S30).
2). On the other hand, when the received hypertext information does not instruct the transition to the next page (S306), the web
The browser 26a controls the PHS communication unit 2 by the communication control unit 28.
4 and the base station 14 are disconnected (S307).

FIG. 7 is a flow chart for explaining the process of S304 in FIG. 6 in detail. As shown in the figure, in this web process, a content import request (data transmission request) is made from the web browser 26a to the WWW server 20 (S401). This content acquisition request is made in units of individual data forming the content. That is, generally, the data related to the web page includes text data and a plurality of binary data representing images and sounds. In the content import request in S401, the text import request and the import request for each of the binary data are included. It is done separately.
Here, a case where the data related to the web page is configured to include text data and image data will be described.

The web browser 26a is the WWW server 20.
The content of the content returned from is determined from the header information (S402). Then, if the content details are judged from the header information to be text data (S402), all of the subsequent text data is W
It is read from the WW server 20 (S411). And w
The eb browser 26a displays the read text data on a display not shown (S412).

On the other hand, when the content of the content received from the WWW server 20 is judged to be image data by judging from the header information, the processing is sorted according to the content of the radio wave condition information (S403). That is, if the fact that the reception level is 4 is stored as the radio wave condition information,
All the subsequent image data is read from the WWW server 20 and a process for expanding the compression is performed (S404). Next, the web browser 26a displays the received image data on a display not shown (S412).

When the radio wave condition information stored in the radio wave condition storage unit 30 indicates that the reception level is 3, the header information of the content transmitted from the WWW server 20 is referred to The size of the image data to be used is 3
It is determined whether it is 0 kB or more (S405). If the size of the image data is less than 30 kB, all the subsequent image data is read and expanded (S40).
6). On the other hand, if the size of the image data is 30 kB or more, it is determined that the size of the image data is too large for efficient reception in view of the reception level, and the reading of subsequent image data is skipped.

When the radio wave condition information stored in the radio wave condition storage unit 30 indicates that the reception level is 2, the header information of the content transmitted from the WWW server 20 is referred to and Image data size to be 2
It is determined whether it is 0 kB or more (S407). If the size of the image data is less than 20 kB, all the subsequent image data are read and expanded (S40).
8). On the other hand, if the size of the image data is 20 kB or more, it is determined that the size of the image data is too large for efficient reception in view of the reception level, and the reading of subsequent image data is skipped.

Further, when the radio wave condition information stored in the radio wave condition storage unit 30 indicates that the reception level is 1, the header information of the content transmitted from the WWW server 20 is referred to and It is determined whether the size of the image data to be processed is 10 kB or more (S409). If the size of the image data is less than 10 kB, all the subsequent image data are read and expanded (S41).
0). On the other hand, if the size of the image data is 10 kB or more, it is determined that the size of the image data is too large for efficient reception in view of the reception level, and the reading of subsequent image data is skipped.

In the web processing described above, when the radio wave condition information is any of the reception levels 1 to 3,
Whether or not to read the subsequent image data is determined based on whether or not the size of the image data is 10 kB, 20 kB, 30 kB or more. Can also be set.

Further, in the web processing described above, when the object of the data transmission request is image data, the reception is restricted according to the amount of the data and the radio wave condition. With respect to the binary data of, the reception of the binary data can be restricted according to the data amount and the radio wave condition.

Next, the operation of the mailer 26b, which is one of the applications 26 of the data processing section 22, will be described. FIG. 8 is a flowchart illustrating the operation of the mailer 26b. As shown in the figure, the mailer 26b performs a process of connecting a wireless line between the PHS communication unit 24 and the base station 14 by the communication control unit 28 according to a user's instruction (S501). The mailer 26b then reads the radio wave condition information stored in the radio wave condition storage unit 30 (S502). When the radio wave condition information indicates that the reception level is 0 (S50
3), the mailer 26b performs the mail processing 0 as already shown in FIG. 3 (S507). As for this mail processing 0,
For example, the reading of mail may be stopped. Subsequently, the mailer 26b displays on the display that the PHS communication unit 24 is out of the service area on the display (S508).

On the other hand, if the radio wave condition information stored in the radio wave condition storage unit 30 indicates a reception level other than 0 (S5)
03), the mailer 26b performs mail processing according to the reception level (S504). The process in S504 will be described later in detail with reference to FIG. The mailer 26b then determines whether there is another mail to be received from the mail server 18 (S
505), if there is another mail, the radio wave condition storage unit 30 again.
The radio wave condition information is read from (S502), and mail processing according to the reception level is performed (S503, S504, S5).
07). Then, when the reading of all the mails is completed (S505), the mailer 26b is set to P by the communication control unit 28.
The wireless line between the HS communication unit 24 and the base station 14 is disconnected (S506).

FIG. 9 is a flow chart for explaining the process of S504 in FIG. 8 in detail. As shown in the figure, in this mail processing, the mailer 26b performs mail reception / display processing according to the radio wave condition information already read in S502.
That is, when the radio wave condition information read out in S502 indicates that the reception level is 4, the mailer 26b receives all the electronic mail data from the mail server 18,
It is stored in a memory (not shown). Then, the electronic mail is displayed on the display according to the received electronic mail data (S612).

When the radio wave condition information read out in S502 indicates that the reception level is 3, (S60
1) Start receiving e-mail data from the mail server 18, and judge whether the data amount of the e-mail currently to be received is 30 kB or more based on the mail size information included in the header information (S603). . Then, if the mail size is 30 kB or more, only the text data representing the body of the electronic mail data is fetched (S605).

That is, when the mail size is 30 kB or more, only the text data representing the body of the e-mail data is received by the mailer 26b, and even if the e-mail includes an attached file. Also, the import is canceled. In order to cancel the reception of the attachment file data of the email data, the mailer 26b sends the email data M
If the attachment file data is included in the IME format, monitor the timing of receiving the MIME header,
Data reception after the MIME header may be limited.

On the other hand, the size of the mail to be received is 3
If it is less than 0 kB (S603), mailer 26b
Receives the entire mail document including the attached file data from the mail server 18 (S604). Then, the electronic mail data thus received is displayed on a display not shown (S612).

Similarly, when the radio wave condition information read in S502 indicates that the reception level is 3, (S60
1), starting to receive e-mail data from the mail server 18, and based on the mail size information included in the header information, it is judged whether or not the data amount of the e-mail currently to be received is 20 kB or more (S606). . Then, if the mail size is 20 kB or more, only the text data representing the body of the electronic mail data is fetched (S608).

On the other hand, the size of the mail to be received is 2
If it is less than 0 kB (S606), mailer 26b
Receives the entire mail document including the attached file data from the mail server 18 (S607). Then, the electronic mail data thus received is displayed on a display not shown (S612).

Further, when the radio wave condition information read out in S502 indicates that the reception level is 2, (S60
1) Start receiving e-mail data from the mail server 18, and judge whether the data amount of the e-mail currently being received is 10 kB or more based on the mail size information included in the header information (S609). . Then, if the mail size is 10 kB or more, only the text data representing the body of the e-mail data is fetched (S611).

On the other hand, the size of the mail to be received is 1
If it is less than 0 kB (S609), mailer 26b
Receives the entire mail document including the attached file data from the mail server 18 (S610). Then, the electronic mail data thus received is displayed on a display not shown (S612).

According to the communication system 10 according to the first embodiment of the present invention described above, the amount of received data depends on the amount of received data and the radio wave condition by the processing only on the mobile information terminal device 12 side. Can be restricted. Therefore, it is possible to reduce wasteful communication between the mobile information terminal device 12 and the base station 14 while maintaining compatibility with existing systems such as electronic mail and WWW.

Embodiment 2. Embodiment 1 described above
In the communication system according to the present invention, the mobile information terminal device 1
Although the data reception is restricted according to the radio wave condition only by the processing of 2, the mail server 18 and the WWW server 2
The data transmitted to the mobile information terminal device 12 may be changed on the side of 0.

FIG. 10 is a diagram showing a processing table stored in the WWW server 20 in the communication system according to the second embodiment. The communication system according to the second embodiment has the same configuration as the communication system 10 according to the first embodiment. And the application 26
The communication control unit 28 and the PHS communication unit 24 function as radio wave condition transmitting means for transmitting the radio wave condition information to a server such as the mail server 18 or the WWW server 20. In addition, the server such as the mail server 18 and the WWW server 20 changes the data to be returned in response to the data transmission request from the mobile information terminal device 12 based on the radio wave condition information received from the mobile information terminal device 12. Functions as a change means.

First, as shown in FIG. 10, in the processing table stored in the WWW server 20, the radio wave condition and the file name of the hypertext data to be transmitted to the mobile information terminal device 12 under the radio wave condition, Are stored in association with each other. Then, in the communication system according to the second embodiment, the mobile information terminal device 12 transmits information about the radio wave condition of the mobile information terminal device 12 via the base station 14 and the Internet 16, that is, the radio wave condition information. It is transmitted to the WWW server 20. In the WWW server 20, the mobile information terminal device 1
2, one of the hypertext data is selected from the processing table shown in FIG. 10 on the basis of the radio wave condition information transmitted from No. 2 and is returned to the mobile information terminal device 12.

FIG. 11 is a diagram for explaining the processing of the mobile information terminal device 12 used in the communication system according to the second embodiment. As shown in the figure, in the mobile information terminal device 12,
The web browser 26a reads the radio wave condition information stored in the radio wave information storage unit 30, and retrieves it from the Internet 16
Is transmitted to the WWW server 20 via (S701).

That is, also in the communication system according to the second embodiment, the communication control unit 28 and the PHS communication unit 24 perform the processes based on FIGS. 4 and 5, respectively, and store the radio wave condition information in the radio wave condition storage unit 30. is doing. Then, the web browser 26 a uses the radio wave condition storage unit 30.
Read the radio wave condition information (reception level) stored in
It is transmitted to the WWW server 20. This radio wave condition information is transmitted by, for example, a UR transmitted to the WWW server 20.
It may be included as L argument information, or may be included in the WWW server 20.
It may be included in the header information of the URL to be sent to.

Next, the web browser 26a makes a content fetch request to the WWW server 20 (S70).
2). Then, the hypertext information returned in response to this is received from the WWW server 20 and displayed on a display not shown (S703).

FIG. 12 is a flow chart for explaining the operation of the WWW server 20 of the communication system according to the second embodiment. As shown in the figure, the WWW server 20 receives the radio wave condition information transmitted from the mobile information terminal device 12 as described above via the Internet 16 (S80).
1). Then, subsequently, a content import request is received from the mobile information terminal device 12 (S802). Then W
The WW server 20 selects hypertext data to be returned to the mobile information terminal device 12 according to the processing table shown in FIG. That is, the WWW server 20 acquires the file name of the hypertext data described in the processing table of FIG. 10 from the processing table in correspondence with the radio wave condition information received in S801, and acquires the hypertext data related to the file name. It returns to the mobile information terminal device 12 (S803).

The processing table shown in FIG.
A plurality of types of hypertext data, which are created for each content and represent one content, having different image data sizes or different image data sizes are prepared. Therefore, the WWW server 20 can reply to the mobile information terminal device 12 with hypertext data having an appropriate amount of information according to the radio wave condition.

In this way, the amount of data to be received by the mobile information terminal device 12 can be limited according to the radio wave condition of the mobile information terminal device 12. Therefore, it is possible to avoid the problem that the mobile information terminal device 12 repeats useless data transmission requests to the PHS communication unit 24.

Embodiment 1 or 2 of the present invention described above
The communication system according to the present invention can be variously modified. For example, in the second embodiment, an example in which the WWW server 20 selectively returns hypertext data to the mobile information terminal device 12 according to the radio wave condition has been described.
The mail server 18 may change the electronic mail data to be transmitted to the mobile information terminal device 12 according to the radio wave condition of the mobile information terminal device 12. For example, the transmission of the attached file data included in the email data may be restricted according to the radio wave condition, and the email data to be transmitted to the mobile information terminal device 12 may be changed.

[0057]

According to the present invention, the data reception is restricted according to the radio wave condition information, so that it is possible to reduce the unnecessary repetition of the data transmission request to the data transmission source. As a result, the communication time can be reduced, the communication cost can be reduced, and the battery life of the device can be extended.

According to the present invention, since the reception level is used as the radio wave condition information, it is possible to suitably judge whether or not useless data transmission requests are repeated.

Further, according to the present invention, the data receiving means receives the hypertext including the binary data as the required data and limits the reception of the binary data according to the radio wave condition information. , But limiting the reception of binary data with a small amount of information,
It is possible to reduce unnecessary repetition of data transmission requests to the data transmission source.

Further, according to the present invention, the reception of the binary data is limited based on the data amount of the binary data and the radio wave condition information. Therefore, the worse the radio wave condition is, the larger the data amount is. It is possible to limit the reception of binary data, and it is possible to reduce unnecessary repetitions of data transmission requests to the data transmission source in consideration of the radio wave condition and the amount of data that can be suitably received in the radio wave condition. At the same time, it is possible to avoid the data reception being unnecessarily limited.

In addition , according to the present invention, the data receiving means receives the e-mail data including the attached file data as required data, and limits the reception of the attached file data according to the radio wave condition information. By receiving the minimum required information, it is possible to reduce unnecessary repetition of data transmission requests to the data transmission source.

Further, according to the present invention, since the reception of the attached file data is restricted based on the data amount of the electronic mail data and the radio wave condition information, the useless data transmission request to the data transmission source is repeated. And it is possible to avoid unnecessary limitation of data reception.

Further, according to the present invention, the radio wave condition information is transmitted from the mobile information terminal device to the server, and the data to be returned by the server in response to the data transmission request from the mobile information terminal device is expressed in the radio wave condition. Since the information is changed according to the information, the amount of data returned to the mobile information terminal device can be reduced when the radio wave condition is bad. As a result, it is possible to reduce unnecessary repetition of data transmission requests to the server that is the data transmission source.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of a communication system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a mobile information terminal device according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a processing table held in the mobile information terminal device according to the first embodiment of the present invention.

FIG. 4 is a flowchart illustrating an operation of a communication control unit of the mobile information terminal device according to the first embodiment of the present invention.

FIG. 5 is a flowchart illustrating the operation of the PHS communication unit of the mobile information terminal device according to Embodiment 1 of the present invention.

FIG. 6 is a flowchart illustrating an operation of a web browser installed in the mobile information terminal device according to the first embodiment of the present invention.

FIG. 7 is a flowchart illustrating an operation of a web browser installed in the mobile information terminal device according to the first embodiment of the present invention.

FIG. 8 is a flowchart illustrating an operation of a mailer installed in the mobile information terminal device according to the first embodiment of the present invention.

FIG. 9 is a flowchart illustrating the operation of the mailer installed in the mobile information terminal device according to the first embodiment of the present invention.

FIG. 10 is a diagram showing a processing table held in a WWW server in the communication system according to the second embodiment of the present invention.

FIG. 11 is a flowchart illustrating the operation of the mobile information terminal device according to the second embodiment of the present invention.

FIG. 12 is a flowchart illustrating the operation of the WWW server according to the second embodiment of the present invention.

[Explanation of symbols]

10 communication system, 12 mobile information terminal device, 14
Base station, 16 Internet, 18 mail server,
20 WWW server.

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Claims (10)

(57) [Claims] 1. The data source includes binary data.
Data receiving means for receiving a non-hypertext data via a wireless line, a radio wave state information acquisition means for acquiring radio wave state information of the radio channel, before by said data receiving means in response to the radio wave state information
A mobile information terminal device, comprising: reception limiting means for limiting reception of the binary data of the hypertext data. Wherein said reception-limiting means according to claim 1, characterized in that to limit the reception of the binary data based on the data amount and the radio wave state information of the binary data
The mobile information terminal device described in. 3. Attachment file data from a data transmission source
Data receiving means for receiving electronic mail data via a wireless line including a radio wave state information acquisition means for acquiring radio wave state information of the radio channel, before by said data receiving means in response to the radio wave state information
A mobile information terminal device, comprising: reception limiting means for limiting reception of the attached file in the electronic mail data . 4. The mobile information terminal according to claim 3 , wherein the reception restriction unit restricts reception of the attachment file data based on the data amount of the electronic mail data and the radio wave condition information. apparatus. Wherein said radio wave state information, the mobile information terminal device according to any one of claims 1 to 4, characterized in that a reception level. 6. A program for causing a computer configured to be connectable to a wireless communication device to function as a mobile information terminal device for processing hypertext data including binary data received by the wireless communication device via a wireless line. a recorded medium, said by the wireless communication device based on the radio wave situation information acquisition unit from the communication device to acquire the radio wave state information of the radio channel, and the radio wave state information
Accepts the binary data from the hypertext data
As reception-limiting means for limiting the signal, medium recording a program for causing a computer to function. 7. A computer configured to be connectable to a wireless communication device for functioning as a mobile information terminal device for processing e-mail data including attachment file data received by the wireless communication device via a wireless line. a medium recording a program, the by the wireless communication device based on the radio wave situation information acquisition unit from the communication device to acquire the radio wave state information of the radio channel, and the radio wave state information
A medium in which a program for causing a computer to function as a reception limiting means for limiting the reception of the attached file data in an electronic mail is recorded. 8. A server is communicatively connected to the server through a communication line including a wireless line, transmits a data transmission request to the server, and returns from the server.
In a communication system including a mobile information terminal device that receives hypertext data including binary data, the mobile information terminal device includes a radio condition acquisition unit that acquires radio condition information of the wireless line, and the radio condition information acquisition. A radio wave condition transmitting means for transmitting the radio wave condition information acquired by means to the server, wherein the server is responsive to the data transmission request based on the radio wave condition information received from the mobile information terminal device. The hypertext data sent back to the mobile information terminal device is composed of a plurality of hypertext data having different binary data amounts.
A communication system comprising a data changing means for selectively changing from text data . 9. A server is communicatively connected to the server via a communication line including a wireless line, transmits a data transmission request to the server, and returns from the server.
In a communication system including a mobile information terminal device that receives e-mail data including attachment file data, the mobile information terminal device includes a radio wave condition acquisition unit that acquires radio wave condition information of the wireless line, and the radio wave condition information. Radio wave condition transmitting means for transmitting the radio wave condition information acquired by the acquisition means to the server, wherein the server responds to the data transmission request based on the radio wave condition information received from the mobile information terminal device. e-mail data to be returned to the mobile information terminal apparatus Te, hydrogenated
Multiple emails with different amount of attached file data
A communication system comprising a data changing means for selectively changing from data. Wherein said radio condition information, the communication system according to claim 8 or 9, characterized in that a reception level.