KR100665821B1 - Mobile communication terminal and method for outputting files - Google Patents

Abstract

A mobile terminal and a method for outputting a file is provided to read a multimedia file such as video and text. A file processing unit(230) receives a file and checks whether there is an extension in the file. If there is no extension in the file, the file processing unit(230) makes a request for converting the file. A wireless circuit unit(270) receives the file or the converted file. In response to the request for converting the file, a screen size detecting unit(260) checks a screen size of a mobile terminal and transmits it. When the converted file is an image file, a display unit(220) displays the image file. When the converted file is a sound source file, an audio conversion unit(250) reproduces the sound source file.

Description

Mobile communication terminal and method for outputting files}

1 is a diagram illustrating a network for converting an email and a file attached to the email and providing the same to a terminal according to an embodiment of the present invention.

2 is a system configuration diagram of a mobile communication terminal displaying a file attached to an e-mail according to an embodiment of the present invention.

3 is a flowchart illustrating a process of receiving a converted image from a server when there is no viewer suitable for an attachment according to an embodiment of the present invention.

4 is a flowchart illustrating a process of a server converting an attached file according to a request of a terminal according to an embodiment of the present invention.

5 is a view showing a conversion form when the attachment is a document file according to an embodiment of the present invention.

6 is a view showing a conversion form when the attachment is a video file according to an embodiment of the present invention.

The present invention relates to a method of identifying a file, and more particularly, to a mobile communication terminal and a method for enabling an identification of an attached file that a mobile communication terminal cannot process regardless of a format.

In the existing e-mail environment, in order to read the attachment included in the e-mail, there must be a viewer or editor that can read the format of the attachment. That is, in a limited environment such as a mobile terminal, a document, video, or sound file such as * .doc, * .hwp, * .pdf, etc., except for text files, bitmap image files, etc., which are commonly used in all other systems, can be viewed in the viewer or It is impossible to check without the player.

Because, at present, the file which can read the attachment attached to the mail in the mobile phone is very limited. This is because in order to read the attached file in binary format in addition to the text data, a viewer must exist in the mobile communication terminal according to the type of the attached file, because this is practically impossible in a mobile communication terminal requiring less memory.

In order to overcome this problem, a method of extracting the text portion of the document from the e-mail server and transmitting the text portion to the user has been introduced. Details thereof are described in Patent Application No. 082708, "Mail Service Method in Wireless Data Communication Network", and thus will be omitted.

In this way, however, files other than text cannot be read. On the other hand, an improved method has been introduced. Patent Application No. 061238, "Method and Apparatus for Displaying Email Screen in Mobile Communication Terminal". This feature allows you to check attachments of various formats on one screen. However, this method also does not overcome the conventional problem that the contents cannot be checked when the user's mobile communication terminal does not support the attachment.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a mobile communication terminal, a system, and a method for verifying contents even when an attachment is not supported by a user's mobile communication terminal. .

Another object of the present invention is to provide a mobile communication terminal and system and a method for reading a file other than text.

In order to achieve the above object, the present invention provides a file processing unit for receiving a file and checking whether there is an extension means in the file, and if there is no extension means in the file, requesting a file to be converted and received, or receiving a file or converting a file. Provided is a mobile communication terminal including a wireless circuit unit for receiving a file and an output unit for processing and outputting a converted file.

The mobile communication terminal may further include a screen size detection unit for checking and transmitting the screen size of the terminal when the conversion file is requested, and a memory unit for storing the conversion file temporarily or for a predetermined time.

The output unit may be a display unit for displaying when the converted file is an image file or an audio converter for reproducing when the converted file is a sound source file.

In addition, the conversion file is converted into a combination of at least one or more files of text or image to fit the screen size.

In addition, when the conversion file arrives, it characterized in that it further comprises means for notifying arrival by vibration or voice.

In another aspect, the present invention provides a method for receiving a file, checking whether an extension suitable for the file exists, requesting a file conversion and checking the converted file if the extension does not exist, and the extension function. If present, provides a method of outputting a file including checking the file.

In this case, the converting of the file may include checking a screen size of the terminal, checking a format of the file, and converting the file into a text / image / sound source and transmitting the same to the terminal.

At this time, the converted text or image file is characterized in that the size suitable for the screen size.

In this case, the file may be a file attached to an e-mail.

Therefore, even if the user's mobile communication terminal does not support the attachment can be checked the contents. In addition, it is possible to read multimedia files such as moving images other than text.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment according to the present invention.

1 is a diagram illustrating a network for converting an email and a file attached to the email and providing the same to a terminal according to an embodiment of the present invention.

Referring to the drawings, the mobile communication terminal 100 for processing or requesting an attachment of an e-mail, an e-mail providing server 120 for transmitting an e-mail with an attachment, and converting an attachment according to a request of a terminal It is composed of a file conversion providing server 130 to transmit to the terminal.

The mobile communication terminal 100 receives the e-mail and requests the file conversion providing server 130 to read the e-mail when the terminal has an attachment to the e-mail. Of course, if a viewer suitable for the content type of the attachment file for the e-mail does not exist in the terminal, there is a process of receiving and confirming an image from the server. A diagram illustrating this process is shown in FIG. 3. This will be described later.

Here, the content type is an indication of the format of the contents of the mail in the header of the email so that the mail can be read when sending and receiving the email. Therefore, such a content type includes' text ',' image ',' audio ',' video ',' message ', multipart', and 'application', and sub-types exist for each content-type. It may be. The sub-types of text are 'plaintext' and 'richtext', and the sub-types of Image are 'gif' and 'jpeg' formats. Of course, there are sub-types for audio and video. For example, 'basic' may exist as an audio sub-type and 'mpeg' may exist as a video sub-type.

The mobile communication terminal 100 is connected to the email providing server 120, the file conversion file conversion providing server 130 and the wireless communication network through the base station 110. The e-mail providing server 120 is a server for sending an e-mail to the mobile communication terminal 100. When another user requests to send an e-mail to the mobile communication terminal 100 using a service provided by the server 120, the mobile communication terminal 100 sends the e-mail to the mobile communication terminal 100. It performs a function for transmitting to the terminal 100. The email providing server 120 may provide the contents of the multimedia file 121 and the image file 122 to send the email.

That is, another user accesses the e-mail providing server 120 and selects one from the multimedia file 121 or the image file 122 and attaches it to the mail. Of course, the multimedia file 121 or the image file 122 may be provided by the email providing server 120 or may be a multimedia or image file created by the sender.

Of course, this is only one example, it may be applicable to the case that the user is provided with a content file by configuring the content providing server instead of the email providing server 120.

The file conversion providing server 130 converts the attachment to suit the screen size of the terminal 100 when the conversion request is made when the attachment of the e-mail received from the mobile communication terminal 100 cannot be read, and then the terminal 100 again. It will play the role of sending to. A diagram showing this conversion is shown in FIG. This will be described in the corresponding drawings.

2 is a system configuration diagram of a mobile communication terminal displaying a file attached to an e-mail according to an embodiment of the present invention. Referring to the drawings, the mobile communication terminal 200 includes a control unit 200, a key input unit 210, a display unit 220, a file processing unit 230, a memory unit 240, an audio conversion unit 150, And a screen size detector 260 and a wireless circuit unit 270.

The controller 200 controls functions implemented in the mobile communication terminal and processes data and signals with other components. Therefore, the control unit 200 receives an e-mail from the e-mail providing server 120 through the base station 100. In addition, when the file attached to the e-mail is converted, the conversion file is received from the file conversion providing server 130.

The key input unit 210 performs a digit button (0-9), a special key button (*, # ....), a letter key button engraved with a Korean alphabet or alphabet, which is used as an input in a mobile communication terminal. It consists of a function key button, and serves as an interface for transmitting a user's instructions to the control unit 200. In particular, in one embodiment of the present invention is configured a key button that performs a function for the user inputs a search word for searching for personal information.

The display unit 220 may include a display device such as a liquid crystal display (LCD), an organic light emitting diode (OLED), a touch screen, and the like, and may be controlled by the controller 200. According to the display, the menu screen selected by the user of the mobile communication terminal, the execution screen, and the result screen are displayed. In particular, the date and time of the present invention also displays the contents of the change file when the file attached to the email is converted together with the contents of the email.

The file processing unit 230 reads the e-mail transmitted from the e-mail providing server 120 to check whether there is a file attached to the e-mail, and has an extension function (for example, a dedicated viewer, a playback program, etc.). Process attachments. Of course, if the extension does not support the attachment, the file processing unit 230 requests the file conversion providing server 130 to convert the attachment. As described above, but the above, the file processing unit 230 is also applied to receive the file as a file attached to the e-mail processing or download from the content server. Of course, it is also possible to receive a file from another information terminal such as a personal computer (PC) and process it.

The memory unit 140 may be configured of a flash memory, a RAM, an electrically erasable programmable read only memory (EEPROM), and the like. To explain this, the basic real-time operating system (OS) and the call processing software of the mobile communication terminal are stored in the flash memory, and the variables and states of these programs are loaded from the RAM and operated. The ROM may be configured as an EEPROM, and may store nonvolatile data that may be electrically erased or stored again and perform input / output according to a command of the controller 100.

In particular, in one embodiment of the present invention is stored an extension module 241 having a viewer, an application program that can read the attachment. In addition, the terminal receives an e-mail and checks whether there is an attached file, and if the file is supported by the terminal, the terminal processes the file or stores a program and data including an algorithm requested by the server.

In addition, the memory unit 240 temporarily stores the converted file until it is confirmed by the user or stores it for a predetermined time.

The audio converter 250 converts the voice data received from the wireless circuit unit 270 into an audible sound through a speaker under the control of the controller 200, and modulates the voice signal received from the microphone Mic. The digital voice data is converted and transmitted to the control unit 200. In particular, in one embodiment of the present invention, if the file attached to the e-mail is a music file, it converts and plays it. Of course, when the attachment arrives converted, a voice or vibration mode can be used to signal this.

The screen size detector 260 checks the screen size of the terminal and transmits it to the file conversion providing server 130 when the terminal 100 requests the file conversion providing server 130 to convert the attachment of the email. Will perform. Accordingly, the file conversion providing server 130 performs a function of converting the attached file to fit the screen size. Examples of screens showing this are illustrated in FIGS. 5 and 6, which will be described later.

The wireless circuit unit 270 receives a telephone call or data sent by an external telephone through an antenna and transmits the data to the control unit 200 or transmits data stored in the memory unit 240. That is, transmission and reception of voice or text data and control data are controlled. In particular, one embodiment of the present invention receives an email or a converted attachment. It is also possible to receive a file wirelessly from an information terminal such as a PC. In other words, it is possible to use Bluetooth or infrared communication function. Of course, in the case of a wired cable, a USB cable or a data communication cable is mainly used to connect with an information terminal. Since it is already known technology, more detailed description will be omitted.

3 is a flowchart illustrating a process of receiving a converted image from a server when there is no viewer suitable for an attachment according to an embodiment of the present invention. This is the process of receiving and converting a converted file by requesting a file conversion request to a server when an e-mail receiver does not have an extension function suitable for a content type of an attached file.

Normally, a mobile communication terminal is placed in a standby mode until a telephone call request or a user operation is performed. That is, the mobile communication terminal receives all system information to complete normal operation, and then is in an idle state for receiving a paging channel. When the e-mail providing server 120 transmits an e-mail in such a standby mode, the mobile communication terminal 100 receives this and notifies the user (step S300). The notification method may include vibration, a ringtone, and voice, and a method of displaying on the screen.

Of course, prior to this, the sender who wants to send an e-mail accesses the e-mail providing server 120 using a computer, and composes an e-mail from a web page providing a corresponding service, and attaches an attachment.

When the e-mail arrives, the user selects the e-mail and requests confirmation of the text (step S320). In general, since the terminal 100 is configured with a mail inbox menu, the user selects the corresponding e-mail from this menu, which means that the e-mail server 120 transmits a body and an attachment to the e-mail.

Accordingly, the email providing server 120 transmits the body and the attached file of the corresponding email, and the terminal 100 receives the transmission (step S320).

When both the body of the email and the transmission of the attached file are completed, the user opens the attached file (step S330).

At the request of the user, the file processor 230 checks whether the extension module 241 has an extension function that can read or play the attached file (step S340).

That is, the terminal basically supports a text or bitmap format, but in addition, the sender can transmit the attached file in various formats. Therefore, the format supported by each attachment is different, so a viewer or application program is required. For example, if the attached file is "999.doc", MS-WORD viewer is required. If "123.hwp", Korean viewer is required. Of course, even if the attachment is audio or video, an application program for playing it is required.

Therefore, if the file format supported by the terminal 100, the file processing unit 230 processes and displays it (step S360). Therefore, the user can check the contents of the attached file.

On the contrary, if the attachment is a file format that is not supported by the terminal 100, the terminal 100 displays a message for the user to confirm and requests whether to convert the file (step S350).

If the user thinks that the attached file is not important at this stage, the user can exit without performing the file change request.

On the contrary, when the user checks the attached file and selects the file conversion, the terminal 100 requests the file conversion providing server 130 for the attachment file conversion. Of course, at this time, the terminal 100 checks the screen size that the terminal can support now, and transmits the information about this to the file conversion providing server 130 (step S351). In addition, it is preferable to also transmit the file format information that can be supported by the terminal 100. But this is not the case. This is because the file conversion providing server 130 may convert the file format into a general format basically supported by the terminal 100.

The file conversion providing server 130 converts the transmitted attachment file into a file such as an image and transmits it to the terminal 100 (step S352). A diagram showing this file conversion process is shown in FIG. This will be described later.

Therefore, the user can check the converted attachment on the terminal 100 (step S360).

In FIG. 3, the terminal 100 transmits an attached file to the file conversion providing server 130 when the file conversion request is made. However, in addition to this method, since the normal email has a header portion to display the format of the attached file, the file conversion providing server 130 connects the email providing server 120 and the file conversion providing server 130 to provide the email providing server ( 120, it is also possible to receive the attachment directly.

4 is a flowchart illustrating a process of a server converting an attached file according to a request of a terminal according to an embodiment of the present invention. Referring to the drawings, the file conversion providing server 130 checks the screen size of the terminal 100 in the information data received from the terminal 100 (step S400).

After checking the screen size, the file conversion providing server 130 checks what file format (format) the attached file is sent (step S401). That is, the attachment file can be a variety of file types, it is desirable to change the process of classifying and converting each.

Therefore, if the attached file is a document file, the file conversion providing server 130 checks whether the converted file can be composed of only text data on one screen of the terminal 100 (step S402). In general, a document file is composed of not only text but also a table and an image. Therefore, if one screen shown on the user terminal 100 after data conversion is composed of simple text only, this part is composed of text data, and if an area such as a table or a picture is included, the part of the converted file to be transmitted is created as an image together with the text. It is desirable to reduce the size.

Of course, this is determined according to the screen size of the terminal 100. A diagram showing this is shown in FIG. 5. Explaining this, the original attachment 500 is composed of a text 501, an image 502, a table 503 and the like. That is, in general, when a user writes a document using Hangul 2002 provided by Hangul and a computer company, an example of writing the image and a table in the text may be easily seen by others. Attachment 500 shows an example of this, and the format will usually be "0001.hwp".

When converting the attached file 500, two methods can be converted into a form. will be. This is described as the number of cases as follows.

(1) If the screen size of the terminal is small:

In this case, text 510, image 511, table 1 512, and table 2 513 are converted. That is, compared with the original attachment file, it is shown in Table 1 below.

Original Attachment (500) Convert file Text (501) Text (510) Image (502) Image (511) Table (503) Table 1 (512), Table 2 (513)

Here, when the size of the table 503 is large, it means that the table 1 512 and the table 2 513 are configured. Of course, if the text 501 or the image 502 is larger than the screen size of the terminal 100 is composed of a plurality.

(2) If the screen size of the terminal is large:

In this case, it can be combined to fit the screen size. That is, as shown in Table 2.

Original Attachment (500) Convert file Text (501) + image (502) Converted file 1 (520) Table (503) Converted File 2 (521)

That is, the conversion file 1 520 converts the text 501 and the image 502 from the original attachment file 500 as it is. The conversion file 2 521 is a configuration of only the table 503 separately from the original attachment file 500.

Of course, if the original attachment 500 is small, it is also possible to convert to a screen to maximize the format of the original document.

The screen examples described here are all image files. That is, the terminal 100 converts the image file into an image file (for example, a bitmap format method) for display on the screen.

Therefore, if the original attachment is composed of text only and can be displayed on one screen of the terminal 100 in step S402 of checking whether the text data is composed of only text data, it is converted into a text file (step S410).

On the other hand, if the original attachment includes a picture, a table, etc. in addition to the text, it is converted into an image (step S411).

When the conversion is performed, the file conversion providing server 130 checks whether the conversion of the attached file is completed (step S420). That is, when there are a plurality of attachments, the step of checking the attachment file type is performed again. Otherwise, if the conversion of the attachment is completed, the converted file is transmitted to the terminal 100 (step S430).

Unlike such a document file, if the original attachment is a video file in step S401 of the attachment file format, the file conversion providing server 130 extracts a keyframe from the video and converts it to an image (step S450). . A screen example showing this is shown in FIG. 6.

6 is a view showing a conversion form when the attachment is a video file according to an embodiment of the present invention. In other words, the number of key frames 610 to 613 desired by the user is extracted from the original video file 600 and converted into an image 620 suitable for the screen size of the user terminal 100. In short, if the original attachment is a video file 000.wmv, 002.mpg, 0003.rm, etc., it is converted into several images. Of course, prior to this, a process of selecting a desired frame is required. To this end, before the conversion, the file conversion providing server 130 preferably checks how many frames the user of the terminal 100 selects.

If the original attachment is an image / sound / cad file at step S401 of the attachment file format, it is converted to an image / sound file suitable for the terminal 100 (step S460). That is, if the sender sent the 0003.mp3 format as an attachment, it may be considered to convert it to 0003.smaf or 0003.mmf for the terminal 100 to recognize it. Here, smaf or mmf is a sound source format that can be reproduced by the terminal 100.

Finally, in the step S401 of checking the attachment file format, if the original attachment file is in a format that cannot be converted even in the file conversion providing server 130, an error message indicating that conversion is impossible is transmitted (step S470).

Along with this, a notification step of a voice or vibration mode may be added to notify the user that the conversion of the attached file is completed and arrived at the terminal.

 As mentioned above, although this invention was demonstrated in detail using the preferable Example, the scope of the present invention is not limited to a specific Example, If the person who acquired the ordinary knowledge in this technical field, without departing from the range of this invention, It should be understood that many modifications and variations are possible. Therefore, the protection scope of the present invention will be preferably interpreted by the appended claims.

As described above, even if the user's mobile communication terminal does not support attachments, the contents can be checked.

In addition, it is possible to read multimedia files such as moving images other than text.

Claims (12)

A file processing unit which receives a file and checks whether the file has an expansion means, and if the file does not have the expansion means, requests a file to be converted and processed; A radio circuit unit for receiving the file or receiving a converted file of the file; A mobile communication terminal comprising an output unit for processing and outputting the conversion file. The method of claim 1, And a screen size detection unit for checking and transmitting the screen size of the terminal when the conversion file is requested. The method of claim 1, And the output unit is a display unit which displays when the converted file is an image file. The method of claim 1, The output unit is a mobile communication terminal, characterized in that the audio conversion unit to play when the conversion file is a sound source file. The method of claim 1, And a memory unit for storing the converted file temporarily or for a predetermined time. The method of claim 1, The converted file is a mobile communication terminal, characterized in that converted to combine at least one or more files of text or image to fit the screen size. The method of claim 1, And a means for notifying the arrival by vibration or voice when the converted file arrives. Receiving a file; Checking whether there is an extension suitable for the file; Requesting conversion of the file and checking the converted file if the extension is not present; Checking the file if the extension is present. The method of claim 8, In the converting step of the file, Checking the screen size of the terminal; Identifying a format format of the file; Converting the file into any one of a text / image / sound source and transmitting the converted file to the terminal. The method of claim 8, And the converted text or image file is a size suitable for the screen size. The method of claim 8, And the file may be a file attached to an e-mail. The method of claim 8, And a means for notifying the arrival by vibration or voice when the converted file arrives.

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