JP5878006B2 - Mobile communication terminal and mobile communication method - Google Patents

Description

  The present invention relates to a mobile communication terminal and a mobile communication method.

  In mobile phones, a service that allows a still image or an animation image to be combined with a text body and converted into dynamic content typified by the Flash (registered trademark) format to be transmitted and received as dynamic mail has become widespread. In order to correctly display such dynamic mail, it is necessary that the mobile phone terminal supports playback of dynamic contents such as the Flash (registered trademark) format.

  In the current cellular phone network, control is performed so that the converted dynamic content is not transmitted as it is to a cellular phone terminal that does not support dynamic content reproduction. In current cellular phone networks, HTTP is used for mail distribution. Therefore, the server that relays the mail is dynamic only if it is a terminal that can acquire the model information of the mobile phone terminal on the receiving side specified by the User-Agent included in the HTTP request and can reproduce the dynamic content. Send emails containing sensitive content. On the other hand, in the case of a terminal that cannot reproduce dynamic content, the image or text portion before conversion to dynamic content is transmitted. Thereby, even if it is the mail transmitted including dynamic content, the user of the terminal which does not respond | correspond to reproduction | regeneration of dynamic content can display mail without a sense of incongruity.

  Japanese Patent Application Laid-Open No. 2004-133867 describes a technique for converting in advance into a file format and format suitable for a terminal by a conversion server on the network in consideration of the format of content that can be played back on the terminal on the user side.

JP 2002-342218 A

  However, since a highly versatile mobile phone terminal such as a smartphone that has recently become popular uses SMTP or POP to send and receive mail, the model information of the terminal is sent in advance by the server that relays the mail before sending the mail. Can not get. Therefore, there is a possibility that an email including dynamic content is transmitted as it is to a mobile phone terminal that does not support dynamic content reproduction. In such a case, the image or character string before conversion cannot be displayed instead of the non-compatible dynamic content. As a result, the user may not be able to display the contents of the mail, or may not be able to read without discomfort even if it can be partially displayed. In addition, dynamic content that does not correspond is received as an attached file to an e-mail together with an extension indicating the format of the content, which may cause a user unfamiliar with e-mail to feel uncomfortable.

  With respect to such a problem, Japanese Patent Application Laid-Open No. 2004-151867 cannot cope with the problem because it is a condition that the type of the terminal that receives the mail can be identified.

  The present invention has been made in view of the above problems, and when an email including dynamic content is received by a terminal that does not support dynamic content reproduction, an image before dynamic content conversion is provided. Alternatively, the object is to display a character string without a sense of incongruity.

  In order to solve the above-described problems and achieve the object, a mobile communication terminal according to the present invention is a mobile communication terminal that transmits a mail including dynamic content converted by a combination of an image or a character string. A content storage unit that stores the dynamic content in a predetermined extension area of the image file according to the above, a mail generation unit that generates an HTML mail including the image file, and a mail header included in the mail A mail header generation unit that generates a mail header including a first flag when the dynamic content is stored in the extension area, and If a typical content is not stored in the extension area, a mail header including a second flag is generated.

  ADVANTAGE OF THE INVENTION According to this invention, when the mail containing dynamic content is received with the terminal incompatible with reproduction | regeneration of dynamic content, the image or character string before conversion of dynamic content is displayed without a sense of incongruity. Can do.

The figure showing the outline | summary of the mobile communication system containing the mobile communication terminal in one Embodiment of this invention. The figure showing the hardware structural example of the mobile communication terminal in one Embodiment of this invention. The functional block diagram of the mobile communication terminal (transmission side) in one Embodiment of this invention. The functional block diagram of the mobile communication terminal (reception side) in one Embodiment of this invention. The figure showing the example of the format of an image file. The figure showing the example of the format of an image file. The flowchart explaining the mail transmission process by the mobile communication terminal in one Embodiment of this invention. The flowchart explaining the mail reception process by the mobile communication terminal in one Embodiment of this invention. The functional block diagram of the modification of the mobile communication terminal (transmission side) in one Embodiment of this invention. The functional block diagram of the modification of the mobile communication terminal (reception side) in one Embodiment of this invention. The flowchart explaining the mail transmission process of the modification of the mobile communication terminal in one Embodiment of this invention. The flowchart explaining the mail reception process of the modification of the mobile communication terminal in one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1. Overview 2. 2. Hardware configuration Function 4. 4. Mail transmission process 5. Mail reception process 5.1 Mail reception process by mobile communication terminal corresponding to dynamic content reproduction 5.2 Mail reception process by mobile communication terminal not compatible with dynamic content reproduction Modified example

(1. Overview)
FIG. 1 shows an overview of a mobile communication system 1 including a mobile communication terminal 100 according to an embodiment of the present invention. The mobile communication system 1 includes mobile communication terminals 100 and 102 that transmit or receive mail including dynamic content according to an embodiment of the present invention, a mobile communication terminal 110 that does not support dynamic content playback, It has a PC 120, a mail server 130 that distributes mail between the terminals or PCs, and a network 140 that connects the terminals, PCs, and servers that constitute the system 1 to each other. Dynamic content is the conversion of rules or scripts written to perform desired actions on elements or objects such as character strings or images into a format that can be played back on mobile communication terminals. Is what was generated. The mobile communication terminal or the like is provided with hardware or software capable of reproducing such dynamic content in advance. As a specific example of dynamic content, there is a Flash (registered trademark) format.

  The mobile communication terminals 100 and 102 are mobile phone terminals that support dynamic content reproduction and can send and receive emails including dynamic content according to an embodiment of the present invention. Here, the side that transmits the mail will be described separately as the mobile communication terminal 100, and the side that receives the mail will be described as the mobile communication terminal 102.

  The user of the mobile communication terminal 100 composes an HTML mail body by combining image files prepared in advance with a character string representing the content of the message. Next, this is converted into dynamic content according to a predetermined rule. The predetermined rule is, for example, a rule defined by the user and described for causing the image or text to perform a desired action. Alternatively, the predetermined rule is defined in order to cause a special interaction with other related specific image file defined for each image file, for example. As a specific example of the latter, when a cherry tree image file is selected as a background image, there is an effect that the cherry blossoms are scattered on the back of the character string for all character strings included in the mail. Alternatively, when an image file of a heart mark and an image file of an arrow are selected and inserted into the body of an email, there is an effect that the arrow flies toward the heart mark. The dynamic content generated based on such a predetermined rule is stored in the extension area of the image file in the mail body, and the mail is transmitted in the HTML format. Here, the mobile communication terminal 100 transmits a mail by setting a flag related to the conversion result in the mail header, and the flag will be described later. In the following description, it is assumed that an HTML mail including dynamic content is transmitted to the mobile communication terminal 102, the mobile communication terminal 110 not supporting dynamic content, and the PC 120 corresponding to dynamic content.

  The mobile communication terminal 102 is compatible with dynamic content playback, and also supports mail containing dynamic content according to an embodiment of the present invention. Therefore, mail can be correctly displayed by extracting and reproducing dynamic content from the mail transmitted from the mobile communication terminal 100.

  The mobile communication terminal 110 is a mobile communication terminal that is incompatible with dynamic content reproduction and incompatible with mail containing dynamic content according to an embodiment of the present invention. Therefore, the dynamic content included in the mail transmitted from the mobile communication terminal 100 cannot be reproduced. However, since the mail transmitted from the mobile communication terminal 100 is in the HTML format, it can be displayed as it is. At this time, dynamic content that cannot be reproduced is not displayed as an attached file.

  The PC 120 is a PC that supports dynamic content reproduction but is incompatible with mail containing dynamic content according to an embodiment of the present invention. That is, the PC 120 cannot extract dynamic content included in the mail transmitted from the mobile communication terminal 100. However, since the email transmitted by the user of the mobile communication terminal 100 is in the HTML format, the email in the HTML format before conversion can be displayed as it is.

  The mail server 130 receives a mail transmission request from the mobile communication terminal 100 and distributes the mail to the mobile communication terminals 102 and 110 and the PC 120 specified as destinations.

  The network 140 is a network that connects the mobile communication terminals 100, 102, 110, the PC 120, and the mail server 130, for example, the Internet.

  With the above-described configuration, the mobile communication terminals 100 and 102 according to an embodiment of the present invention can store and exchange dynamic content in an extended area of an image file included in an HTML mail. In addition, since mail including dynamic content is in the HTML format, it can be displayed on the mobile communication terminal 110 or the PC 120 that does not support dynamic content.

(2. Hardware configuration)
FIG. 2 shows a hardware configuration example of the mobile communication terminals 100 and 102 according to the embodiment of the present invention. The mobile communication terminals 100 and 102 have a CPU 200, ROM 202, RAM 204, flash memory 206, network controller 208, communication device 210, graphics controller 212, display device 214, input controller 216, input device 218, and bus 220, and images. It is possible to send or receive a mail storing dynamic contents in the file extension area.

  The CPU 200 controls the operation of the mobile communication terminals 100 and 102 according to an embodiment of the present invention. The ROM 202 stores an OS and data necessary for the operation of the mobile communication terminals 100 and 102 executed by the CPU 200. The RAM 204 constitutes a work area of the CPU 202 and the like. The flash memory 206 stores user data such as a user application, an address book, a moving image file, an image file, a music file, and mail data. The network controller 208 performs communication control for communicating with a server or a communication terminal connected to the Internet or a mobile phone network via the communication device 210. The graphics controller 212 performs control for providing an operation screen and information to the user via a display device 214 such as a liquid crystal display or a touch panel display. The input controller 216 controls signals input from the user via the input device 218 including buttons, a touch panel, and a keyboard. The bus 220 is for connecting the above-described devices constituting the mobile communication terminals 100 and 102 to exchange data.

  With the above-described configuration, the mobile communication terminal 100 according to an embodiment of the present invention can transmit or receive a mail storing dynamic content in the extended area of the image file.

(3. Function)
Functional blocks of the mobile communication terminals 100 and 102 according to the embodiment of the present invention will be described with reference to FIGS. 3A and 3B. Here, the mobile communication terminal 100 will be described focusing on the function of transmitting mail, and the mobile communication terminal 102 will be described focusing on the function of receiving mail. However, the mobile communication terminal in one embodiment of the present invention can be configured as a mobile communication terminal having all the functions included in the mobile communication terminals 100 and 102.

  FIG. 3A shows functional blocks of the mobile communication terminal 100 on the transmission side in one embodiment of the present invention. The mobile communication terminal 100 determines whether or not an input unit 300 that accepts an input of mail from the user, an image file 302 that can be used by being inserted into the mail, and whether to convert the mail created by the user into dynamic content. Content determination unit 304, content conversion unit 306 that converts user-generated mail into dynamic content, content storage unit 308 that stores the converted dynamic content in the extension area of the image file, A mail header generation unit 310 that generates a mail header including a flag relating to presence / absence, a mail body generation unit 312 that generates a mail body, a mail transmission unit 314 that transmits a mail, a mail output unit 316 that outputs a preview of the generated mail, A console that plays dynamic content in emails when previewed Content playback section 318, display section 320 that displays previewed mail on the screen, and mail generation section 322 that generates HTML-format mail, so that the mail text can be displayed comfortably even on terminals that do not support dynamic content. Send an email with dynamic content that can be displayed.

  The input unit 300 accepts character input and image selection from a user who creates mail. In addition, it is possible to accept a user input as to whether or not to configure as dynamic content and what kind of operation is to be performed when configuring as dynamic content. Based on the input or selected character string or image, the mail text generation unit 312 generates a mail text.

  The image file 302 is an image file that can be used by being inserted into an email, and is selected by the user through the input unit 300. The image file has an arbitrary format such as GIF or JPEG, and includes an image to be animated.

  The content determination unit 304 determines whether or not the mail text input by the user through the input unit 300 and generated by the mail text generation unit 312 is dynamic content. Whether the content is dynamic or not is determined by whether or not the user inputs that the content is configured as dynamic content, or whether or not the image file constituting the mail causes the special interaction described above.

  The content conversion unit 306 performs conversion when the content determination unit 304 determines to convert the mail into dynamic content. For example, the image file and the character string are combined and converted into the Flash (registered trademark) format (swf format) that operates according to a predetermined rule. As described above, the predetermined rule is defined to cause a special interaction defined by the user or defined for each image file, for example. As an example of conversion, for example, in the Flash (registered trademark) format, an image file and a character string included in a mail body are read with corresponding data types, a script describing a predetermined rule is inserted into them, and compilation is executed. . Here, when the conversion process fails due to a lack of hardware resources or the like, dynamic content is not generated.

  The content storage unit 308 stores the dynamic content converted by the content conversion unit 306 in the extension area of the image file included in the mail text. For example, when the image file is in the GIF format, it can be stored using an extension area defined as an Application Extension block among the components in the GIF format defined in FIGS. 4A and 4B. FIG. 4A shows a format defined by the GIF 89a standard, and is defined to store data in an area called Block between the Header and Trailer. FIG. 4B shows the format of an Application Extension block that is one such block. Although details are omitted, for example, dynamic content can be stored in Application Data of an Application Extension block. As described above, any image file having a similar extended area or unique area can be used without limitation. Note that the image file in which the content storage unit 308 stores dynamic content may be a single image file or a plurality of image files. In the case of storing in a plurality of image files, information indicating how the moving image content is stored in the plurality of image files may also be stored. Note that storing can also be expressed by embedding or inserting.

  The mail header generation unit 310 generates an HTML mail header transmitted by the terminal 100. Here, a flag attached based on the determination result of the content determination unit 304 and the success or failure of the conversion in the content conversion unit 306 is set in the header. If the conversion by the content conversion unit 306 is successful and dynamic content is included in the mail, a dynamic content flag is set. The dynamic content flag is set, for example, by inserting a character string such as “anime” in the “X-Mail-Type” field in the mail header. Or, as a result of the determination by the content determination unit 304, when the dynamic content is not included in the mail, the normal content flag is set. The normal content flag is set, for example, by inserting a character string such as “deco” in the “X-Mail-Type” field. Alternatively, even when the content conversion unit 306 fails for some reason and dynamic content is not included in the mail, the “X-Mail-Type” field is set as “deco”.

  The mail text generation unit 312 generates a mail text based on the character string and image input by the user. The mail text generation unit 312 and the mail header generation unit 310 constitute a mail generation unit 322.

  The mail transmission unit 314 transmits the mail generated by the mail text generation unit 312 to the mail server 130 in order to transmit to the destination.

  The mail output unit 316 outputs the contents for the user to confirm the mail generated by the mail text generation unit 312.

  The content reproduction unit 318 reproduces dynamic content when dynamic content is included in the mail output by the mail output unit 316.

  The display unit 320 displays the mail output by the mail output unit 316 on the screen. When dynamic content is included in the mail, the dynamic content is reproduced by the content reproduction unit 318.

  The mail generation unit 322 includes a mail header generation unit 310 and a mail body generation unit 312. From the mail header generated by the mail header generation unit 310 and the mail body generated by the mail body generation unit 312, an HTML format Generate email.

  As described above, the mobile communication terminal 100 on the transmission side according to an embodiment of the present invention transmits a mail including dynamic contents that can display the mail text without a sense of incongruity even in a terminal that does not support dynamic contents. it can. In addition, by setting a flag indicating whether or not dynamic content is stored in the mail image file, it is easy to determine the presence or absence of dynamic content on the receiving side.

  Note that the content conversion unit 306 may include other content such as audio and video in addition to the image file and the character string. As a result, an email containing dynamic content with high expressibility can be transmitted.

  Also, “anime” or “deco”, which is a flag that the mail header generation unit 310 designates and transmits in the “X-Mail-Type” field, is an example, and any flag that can identify the presence or absence of dynamic content is used. be able to.

  FIG. 3B shows functional blocks of the mobile communication terminal 102 on the receiving side in one embodiment of the present invention. The mobile communication terminal 102 includes a receiving unit 350 that receives HTML mail, a mail header analyzing unit 352 that analyzes the mail header of the received mail, and outputs the mail using dynamic contents or as an HTML format. An output determination unit 354 that determines whether to perform dynamic analysis, an image file analysis unit 356 that analyzes whether the image file included in the email includes dynamic content, and content that extracts dynamic content from the extended region of the analyzed image file The e-mail includes an e-mail output unit 360 that outputs a received e-mail, a content reproduction unit 362 that reproduces dynamic content, and a display unit 364 that displays the e-mail, and includes dynamic content in the e-mail. Depending on whether or not it is output, it is output using dynamic contents or in HTML format as it is It is possible to display the mail to determine whether the force.

  The receiving unit 350 receives an HTML mail transmitted from the mobile communication terminal 100 or the like.

  The mail header analysis unit 352 analyzes whether or not a flag is set in the “X-Mail-Type” field of the mail header of the received mail. The flag type includes “anime” indicating that dynamic content is stored in the mail image file, and “deco” indicating that dynamic content is not included. On the other hand, the flag is not set in a mail transmitted from a communication terminal other than the mobile communication terminal 100 or a PC. The mail header analysis unit 352 informs the output determination unit 354 of the result.

  Based on the contents of the flag specified by the mail header analysis unit 352, the output determination unit 354 determines whether to output the received mail using dynamic content or as an HTML format. When the flag is “amine”, that is, when dynamic content is included in the extended area of the image file included in the mail, it is determined that the dynamic content is used for output. Alternatively, when the flag is “deco”, that is, when dynamic content is not included, it is determined that the HTML format is output as it is. Alternatively, when the flag is not set, that is, when it is unclear whether or not dynamic content is included, determination is made based on the analysis result of whether or not the dynamic content is included in the image file.

  The image file analysis unit 356 analyzes whether or not dynamic content is included in the image file included in the received mail. For example, when the image file is in the GIF 89a format, as described above, since dynamic content is stored in a predetermined area shown in FIGS. 4A and 4B, whether such an area is included is analyzed. If it is found that dynamic content is included, the content extraction unit 358 next extracts the content. If dynamic content is not included, the mail is output in HTML format. The dynamic content format is, for example, the Flash (registered trademark) format.

  The content extraction unit 358 extracts dynamic content from the extended area of the analyzed image file. For example, when the image file is in the GIF 89a format, as described above, the dynamic content is stored in a predetermined area shown in FIGS. 4A and 4B.

  In response to the results of the output determination unit 354 and the image file analysis unit 356, the mail output unit 360 outputs a mail using dynamic content or outputs the mail as an HTML format.

  The content reproduction unit 362 reproduces dynamic content when the received mail is output using dynamic content.

  The display unit 364 displays the output mail on the screen.

  As described above, the mobile communication terminal 102 on the receiving side according to the embodiment of the present invention outputs using dynamic content or outputs it as it is in HTML format depending on whether or not the dynamic content is included in the mail. It is possible to determine whether or not to display the mail.

  Note that the flags “anime” and “deco” in the “X-Mail-Type” field specified by the mail header analysis unit 352 are examples, and are all flags set in advance to identify the presence or absence of dynamic content. May be.

  The hardware configuration and functions of the mobile communication terminals 100 and 102 according to the embodiment of the present invention have been described above. The mail transmission / reception processing of the mobile communication terminals 100 and 102 according to one embodiment of the present invention will be described below. In the following, the description will be divided into the mobile communication terminal 100 that performs the process of transmitting mail and the mobile communication terminal 102 that performs the process of receiving mail. However, the mobile communication terminal is actually configured as a mobile communication terminal that performs both processes. be able to.

(4. Mail transmission process)
The mail transmission process by the mobile communication terminal 100 according to an embodiment of the present invention will be described with reference to FIG.

  In step S500, the mail transmission process of the mobile communication terminal 100 is started.

  In step S <b> 502, the mail text is input by the user through the input unit 300. Further, the user may make an input indicating that the mail is configured as dynamic content. Here, based on the character string input by the user and the selected image, the mail text generation unit 312 generates a mail text.

  In step S504, the content determination unit 304 determines whether the mail configured by the user is dynamic content. If the content is dynamic content, the process proceeds to step S506. Otherwise, go to step 514. Whether or not the mail configured by the user is dynamic content is determined by whether the user inputs that the content is configured as dynamic content or the image file that configures the mail causes the special interaction described above. It is determined by whether or not.

  In step S506, the content conversion unit 306 combines the image file and the character string, and converts them into dynamic content that operates according to a predetermined rule. As described above, the predetermined rule is defined to cause a special interaction defined by the user or defined for each image file, for example. When the dynamic content is Flash (registered trademark), swf format data is acquired by conversion.

  In step S508, if the content conversion unit 306 has successfully converted to dynamic content, the process proceeds to step S510. If not, that is, if the conversion fails due to a shortage of hardware resources of the terminal, a rule for converting to dynamic content, or a defect in the script, the process proceeds to step S514.

  In step S <b> 510, the content storage unit 308 stores the dynamic content data generated by the content conversion unit 306 in the extension area of the image data included in the email body generated by the email body generation unit 312.

  In step S512, the mail header generation unit 310 specifies the “anime” flag in the “X-Mail-Type” field of the mail header, and generates a mail header.

  In step S514, the mail header generation unit 310 generates a mail header by specifying a “deco” flag in the “X-Mail-Type” field of the mail header.

  In step S516, the mail transmission unit 314 transmits the HTML mail generated by the mail generation unit 322 based on the mail text and the mail header.

  In step S550, the mail transmission process ends.

  Through the above mail transmission processing, the mobile communication terminal 100 according to an embodiment of the present invention allows an email including dynamic content to be transmitted to a terminal that is not compatible with dynamic content reproduction before conversion. An HTML mail including an image or a character string can be displayed. Furthermore, since the moving image content is not displayed as an attached file, the user can be prevented from feeling uncomfortable.

(5. Mail reception process)
Below, the process which receives the mail of the HTML format containing the image file in which the dynamic content transmitted from the mobile communication terminal 100 in one Embodiment of this invention is stored is demonstrated. Here, the mail reception process by the mobile communication terminal 102 according to an embodiment of the present invention and the mail reception process by the mobile communication terminal 110 that does not support dynamic content reproduction will be described separately.

(5.1 Mail reception processing by a mobile communication terminal that supports dynamic content playback)
The mail reception process by the mobile communication terminal 102 according to the embodiment of the present invention will be described with reference to FIG.

  In step S600, mail reception processing of the mobile communication terminal 102 is started.

  In step S602, the receiving unit 350 receives an HTML mail. The email in HTML format includes a mail header generated by the mail header generator 310, a mail body generated by the mail body generator 312 and an image file.

  In step S604, the mail header analysis unit 352 analyzes whether or not a predetermined flag is set in the “X-Mail-Type” field of the mail header of the received mail. The flag type includes “anime” indicating that dynamic content is included, and “deco” indicating that dynamic content is not included. In addition, the flag is not included in the mail header of a mail from a terminal or PC other than the mobile communication terminal 100. The mail header analysis unit 352 notifies the output determination unit 354 of the type when the flag is attached to the mail header, and when the flag is not included.

  In step S606, the output determination unit 354 performs determination for determining the mail output method based on the analysis result of the mail header. If the flag included in the mail header is the “anime” flag, the process proceeds to step S616 in order to extract using dynamic content. Otherwise, the process proceeds to step S608.

  In step S608, the output determination unit 354 continues to determine to determine the mail output method. If the flag included in the mail header is the “deco” flag, the process proceeds to step S620 in order to output the HTML mail as it is. Otherwise, the process proceeds to step S610.

  In step S610, the output determination unit 354 continues to determine to determine the mail output method. If the received mail includes an image file, the process advances to step S612 to analyze whether dynamic content is included. Otherwise, the process proceeds to step S620 in order to output the HTML mail as it is.

  In step S612, the image file analysis unit 356 analyzes whether or not dynamic content is included in the image file included in the received mail.

  If it is determined in step S614 that dynamic content is included as a result of the image file analysis, the process advances to step S616. Otherwise, the process proceeds to step S620 in order to output the HTML mail as it is.

  In step S616, the content extraction unit 358 extracts dynamic content from the extended area of the image file.

  In step S618, the mail output unit 360 outputs the received mail using the extracted dynamic content.

  In step S620, the mail output unit 360 outputs the received HTML mail as it is.

  In step S622, the display unit 364 displays the mail output by the mail output unit 360 on the screen on the terminal 102. When dynamic content is included in the output mail, the dynamic content is reproduced by the content reproduction unit 362.

  In step S650, the mail reception process ends.

  Through the above mail reception process, the mobile communication terminal 102 according to an embodiment of the present invention does not analyze the image file by using the flag set in the received mail and indicating that dynamic content is included. E-mail with dynamic content can be output. Further, the flag set in the received mail and indicating that dynamic content is not included allows the mail to be output as it is in HTML format without analyzing the image file. Furthermore, if the flag is not set in the received mail, whether to output the mail using dynamic contents or output the mail as it is in the HTML format based on the result of analyzing the image file. Can be determined.

(5.2 Mail reception processing by mobile communication terminal 110 that does not support dynamic content playback)
The mobile communication terminal 110 that does not support dynamic content playback receives an HTML-format mail including dynamic content transmitted from the mobile communication terminal 100. The mobile communication terminal 110 can output and display an HTML mail. Therefore, the received HTML mail is displayed as it is regardless of the presence or absence of the flag of the mail header. As a result, the mobile communication terminal 110 that does not support dynamic content reproduction can display a character string or an image before conversion of dynamic content, while not displaying dynamic content. As a result, the display of the mail is not distorted due to dynamic content that cannot be reproduced, and unnecessary attached files are not displayed, so that the user can browse the mail without feeling uncomfortable.

  As described above, the mobile communication terminal 100 according to an embodiment of the present invention transmits an HTML mail in which dynamic content is stored in an extension area of an image file, and is not compatible with dynamic content reproduction. In addition, the mail can be displayed without a sense of incongruity. Also, by sending a mail with a flag indicating that dynamic content is included in the header, the mobile communication terminal 102 according to an embodiment of the present invention can perform dynamic processing without performing image file analysis processing. Content can be extracted. In addition, by sending a mail with a flag indicating that dynamic content is not included in the header, the mobile communication terminal 102 according to the embodiment of the present invention does not perform image file analysis processing. Format mail can be output as it is.

(6. Modifications)
So far, the example in which the dynamic content generated by the conversion is stored and transmitted in the extension area of the image data attached to the mail has been described. In the following, an example will be described in which, when dynamic content is stored in advance in the extended area of image data, an email that can convert the mail text into dynamic content is transmitted and received using the dynamic content.

  7A and 7B, functional blocks of mobile communication terminal 700 that transmits mail using dynamic contents stored in advance in an extension area of image data and mobile communication terminal 702 that receives the mail will be described. To do. The hardware configuration of the mobile communication terminals 700 and 702 is the same as that of the mobile communication terminal 100 shown in FIG.

  First, functional blocks of the mobile communication terminal 700 on the transmission side will be described using FIG. 7A.

  The input unit 700 has the same function as the input unit 300 of the mobile communication terminal 100 in FIG. 3A.

  The image file 702 is similar to the image file 302 of the mobile communication terminal 100 in FIG. 3A, but differs in that dynamic content is already stored in the extended area of the image file. As described above, the dynamic content includes a predetermined rule that defines the movement of a character string or an image constituting the mail body.

  The content determination unit 704 determines that the mail text includes dynamic content when the image file selected by the user includes dynamic content.

  The content conversion unit 706 applies the dynamic content (predetermined rule) extracted from the image file by the content extraction unit 724 to a character string or an image included in the mail text, and converts the mail text to dynamic content. Note that, unlike the mobile communication terminal 100, the dynamic content of the converted mail body is not stored in the extension area of the image file. Since the dynamic content including a predetermined rule, which is the source of the dynamic content of the entire converted mail, is stored in advance in the extended area of the image data, if the image data is transmitted, the receiving side also A similar conversion is possible.

  The mail header generation unit 710 has the same function as the mail header generation unit 310 of the mobile communication terminal 100 in FIG. 3A.

  The mail text generation unit 712 has the same function as the mail text generation unit 312 of the mobile communication terminal 100 in FIG. 3A.

  The mail transmission unit 714 has the same function as the mail transmission unit 314 of the mobile communication terminal 100 in FIG. 3A.

  The mail output unit 716 has a function similar to that of the mail output unit 316 of the mobile communication terminal 100 in FIG. 3A. Further, the mail output unit 716 dynamically changes the mail text converted by the content conversion unit 706 for previewing by the user. Output content.

  The content reproduction unit 718 has the same function as the content reproduction unit 318 of the mobile communication terminal 100 in FIG. 3A.

  Display unit 720 has the same function as playback unit 320 of mobile communication terminal 100 in FIG. 3A.

  The mail generation unit 722 has the same function as the mail generation unit 322 of the mobile communication terminal 100 in FIG. 3A.

  The content extraction unit 724 extracts dynamic content included in the extended area of the image file 702.

  As described above, the mobile communication terminal 700 can transmit a mail text representing dynamic contents by using dynamic contents stored in advance in the extension area of the image file. Also, by setting the flag, the receiving side does not need to analyze whether or not dynamic content is included in the image file. Furthermore, setting the flag eliminates the need for the dynamic content extraction process from the image file on the receiving side when the dynamic content conversion of the mail text fails.

  Next, functional blocks of the mobile communication terminal 702 on the receiving side will be described using FIG. 7B.

  The receiving unit 750 has the same function as the receiving unit 350 of the mobile communication terminal 102 in FIG. 3B.

  The mail header analysis unit 752 has the same function as the mail header analysis unit 352 of the mobile communication terminal 102 in FIG. 3B.

  The output determination unit 754 has the same function as the output determination unit 354 of the mobile communication terminal 102 in FIG. 3B.

  The image file analysis unit 756 has the same function as the image file analysis unit 356 of the mobile communication terminal 102 in FIG. 3B.

  The content extraction unit 758 has the same function as the content extraction unit 358 of the mobile communication terminal 102 in FIG. 3B. Here, the dynamic content to be extracted is not the dynamic content of the mail text converted by the mobile communication terminal 700 but the dynamic content stored in advance in the image file. pay attention to.

  The mail output unit 760 receives the results of the output determination unit 754 and the image file analysis unit 756, and outputs a mail using dynamic content representing the mail text converted by the content conversion unit 766, or HTML. Output mail as format.

  The content playback unit 762 has the same function as the content playback unit 362 of the mobile communication terminal 102 in FIG. 3B.

  The display unit 764 has the same function as the display unit 364 of the mobile communication terminal 102 in FIG. 3B.

  The content conversion unit 766 applies the dynamic content (predetermined rule) extracted from the image file by the content extraction unit 758 to a character string or an image included in the mail body, and converts the dynamic content into a dynamic content representing the mail body. .

  As described above, the mobile communication terminal 702 on the receiving side according to the embodiment of the present invention outputs using dynamic content or outputs it as it is in HTML format depending on whether or not the dynamic content is included in the mail. It is possible to determine whether or not to display the mail.

  The mail transmission process by the mobile communication terminal 700 will be described using FIG.

  Steps S800-S804 correspond to S500-S504 in FIG.

  In step S806, the content extraction unit 724 extracts dynamic content from the extended area of the image file.

  In step S808, the content conversion unit 706 applies the dynamic content (predetermined rule) extracted from the image file by the content extraction unit 724 to the character string or image included in the mail body, and the mail body is converted into the dynamic content. Convert to

  Steps S810, S812, S814, S816, and S850 correspond to S508, S512, S514, S516, and S550, respectively, in FIG.

  Through the above mail transmission processing, the mobile communication terminal 700 according to the embodiment of the present invention can convert the mail before the conversion even if the mail including the dynamic content is transmitted to the terminal that does not support the dynamic content reproduction. An HTML mail including an image or a character string can be displayed.

  The mail reception process by the mobile communication terminal 702 will be described with reference to FIG.

  Steps S900 to S916 respectively correspond to S600 to S616 in FIG.

  In step S918, the content conversion unit 766 applies the dynamic content (predetermined rule) extracted from the image file by the content extraction unit 758 to the character string or image included in the email body, and the email body is converted into the dynamic content. Convert to

  In step S920, the mail output unit 360 outputs the dynamic content of the mail text converted by the content conversion unit 766.

  Steps S922, S924, and S950 correspond to S620, S622, and S650 in FIG. 6, respectively.

  Through the above mail reception process, the mobile communication terminal 702 according to the embodiment of the present invention does not analyze the image file by the flag indicating that the dynamic content is set in the received mail. Can be output as dynamic content that represents the email body. Further, the flag set in the received mail and indicating that dynamic content is not included allows the mail to be output as it is in HTML format without analyzing the image file. Furthermore, if the flag is not set for the received mail, whether to output the dynamic content representing the mail body or to output the mail as it is in HTML format based on the result of analyzing the image file. Can be determined.

DESCRIPTION OF SYMBOLS 100 Mobile communication terminal 102 Mobile communication terminal 300 Input part 302 Image file 304 Content judgment part 306 Content conversion part 308 Content storage part 310 Mail header generation part 312 Mail text generation part 314 Mail transmission part 316 Mail output part 318 Content reproduction part 320 Display Unit 322 mail generation unit 350 reception unit 352 mail header analysis unit 354 output determination unit 356 image file analysis unit 358 content extraction unit 360 mail output unit 362 content playback unit 364 display unit

Claims (6)

A mobile communication terminal for sending an email containing dynamic content converted by a combination of images or character strings,
A content storage unit for storing the dynamic content for causing the image or the character string to perform a desired operation in a predetermined extension region of the image file related to the image;
A mail generation unit for generating a mail in HTML format including the image file;
A mail header generator for generating a mail header included in the mail;
Have
The mail header generation unit generates a mail header including a first flag when the dynamic content is stored in the extension area, and the dynamic content is not stored in the extension area Generates an email header containing a second flag in
Mobile communication terminal. The dynamic content is generated by converting a script described so that the image or the character string performs a desired operation into a format reproducible on a predetermined terminal.
The mobile communication terminal according to claim 1. A mobile communication terminal that receives a mail containing dynamic content converted by a combination of images or character strings,
A content extraction unit for extracting the dynamic content for causing the image or the character string to perform a desired operation from an extended region of an image file included in the received HTML mail;
A mail output unit that outputs the mail using the extracted dynamic content;
Analyzing a flag included in the mail header of the mail, and determining whether or not the dynamic content is stored in the extension area;
An output determination unit for determining whether to output the mail together with the extracted dynamic content based on the flag;
A mobile communication terminal. The dynamic content is generated by converting a script described so that the image or the character string performs a desired operation into a format reproducible on a predetermined terminal.
The mobile communication terminal according to claim 3. A mobile communication method for transmitting an email containing dynamic content converted by a combination of images or character strings,
A content storage step of storing the dynamic content for causing the image or the character string to perform a desired operation in a predetermined extension region of an image file related to the image;
A mail generation stage for generating an HTML mail including the image file;
A mail header generation stage for generating a mail header included in the mail;
Have
In the mail header generation stage, when the dynamic content is stored in the extension area, a mail header including a first flag is generated, and the dynamic content is not stored in the extension area Generates an email header containing a second flag in
Mobile communication method. A mobile communication method for receiving an email containing dynamic content converted by a combination of images or character strings,
A content extraction step of extracting the dynamic content for causing the image or the character string to perform a desired operation from an extension area of an image file included in the received HTML mail;
A mail output step of outputting the mail using the extracted dynamic content;
Analyzing a flag included in the mail header of the mail, and determining whether or not the dynamic content is stored in the extension area;
An output determination step for determining whether to output the mail together with the extracted dynamic content based on the flag;
A mobile communication method.

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