JP4974076B2 - Terminal device and program - Google Patents

Description

  The present invention relates to a terminal device that transmits and receives electronic mail, and a program.

  URL (Uniform Resource Locator. For example, “http: //www.***.***” etc.) and e-mail address (for example, “***@***.*** In some cases, a link character string indicating the address information of the link destination is included. In this case, when the user wants to access the link destination indicated by the address information via the Internet even though the link character string indicating the address information is displayed in the text body, the address information is If the character string to be indicated has to be input, the user is requested to perform inefficient work.

  Thus, for example, in Patent Document 1 shown below, after the reproduction signal processing device performs identification display such as extracting a URL from a text body and changing the character color, the user clicks on the URL displayed in the identification display. A technique has been disclosed in which a Web browser is activated and linked to a corresponding URL via an operation.

 Similarly, in Patent Document 1 shown below, after the reproduction signal processing apparatus performs identification display such as extracting an e-mail address from the text body and changing the character color, the identification-displayed e-mail address is displayed. A technique is disclosed in which an e-mail application software is started through a click operation by a user and a new e-mail creation screen is launched with the identified and displayed e-mail address as a destination.

The above-described technology for extracting and displaying the link character string is often used when a terminal device (such as a mobile phone) equipped with an electronic mail function and an Internet connection function displays the text body of the electronic mail. Yes.
JP-A-11-297040

 By the way, in recent years, there is an increasing tendency for unilaterally transmitted electronic mail that is not required by users called spam mail (or spam mail). For this reason, when a terminal device equipped with an e-mail function and an Internet connection function uses the above-described technology for extracting and displaying a link character string, the user opens a junk e-mail and identifies the text contained in the text body. There is a possibility that the displayed URL is clicked by mistake and the user accesses a defective site or the like via the Internet. In addition, there is a possibility that the user mistakenly clicks the identified and displayed e-mail address included in the text body of the junk e-mail and transmits the e-mail via the Internet unlike the user's intention.

 In detail, when receiving an e-mail, it is determined whether it is a junk e-mail, and if it is not junk e-mail, it is distributed to a normal inbox (mail folder), and if it is junk mail, a function to distribute it to a junk folder Although it exists, it may be erroneously determined whether or not it is a spam mail. Therefore, it is assumed that the user usually performs an operation such as visually confirming the e-mail distributed to each folder and deleting the junk e-mail, but during this operation, the junk e-mail is included in the text body of the junk e-mail. There is a risk of erroneously clicking on an identified and displayed URL or e-mail address, and the above-described problems are likely to be realized.

 It is also assumed that an attachment file is attached to the spam mail. The attached file is information unnecessary for the user, and in the worst case, the attached file may be a file sent for the purpose of contaminating the above-described terminal device with a computer virus. However, the above-described technology for extracting and displaying the link character string, for example, extracts and displays the URL or email included in the text of the email regardless of whether it is spam or not. There is no description that restricts the expansion of attached files attached to spam mails. Therefore, if the user accidentally expands the attached file attached to the junk mail, the problem may occur that the terminal device is seriously damaged.

In order to solve the above-described problem, the invention according to claim 1 is configured such that the terminal device that is connectable to the Internet and transmits / receives e-mail via the Internet receives the received e-mail. A determination means for determining whether to enable or disable a link from a link character string included in an e-mail, and the received e-mail when it is determined to enable a link from the link character string Extraction means for extracting a link character string included in the link, identification display means for identifying and displaying the link character string extracted by the extraction means as a link target, and a link destination from the link character string identified and displayed by the identification display means From the character string that is not identified and displayed by the identification display means. And control means for disabling the access via the Internet, when displaying the electronic mail, to disable the link from or the link character string to enable a link from the link character string by the user setting User setting means for switching between, and the determination means is included in the received e-mail when the received e-mail is an e-mail received from a pre-designated e-mail address It is determined that the link from the link character string is to be enabled, and for each folder storing the e-mail, the link from the link character string included in the e-mail stored in the folder is enabled or disabled The user setting means determines whether to use the link character string included in the e-mail by the determining means. When the e-mail in the folder storing the e-mail that is determined to be invalidated is terminated by the user setting means so as to enable the link from the link character string to be displayed. Is changed to invalidate the link from the link character string .

  The invention according to claim 2 is the terminal device according to claim 1, characterized in that the link character string is a URL.

  The invention according to claim 3 is the terminal device according to claim 1, wherein the link character string is an e-mail address.

  According to a fourth aspect of the present invention, in the terminal device according to the first aspect, the determination means validates or invalidates a link from the link character string for each received e-mail. It is characterized by distinguishing.

Further, the invention according to claim 5 further comprises response control means for invalidating a response to the electronic mail determined to invalidate the link from the link character string in the terminal device according to claim 1. It is characterized by that.

The invention according to claim 6 is the terminal device according to claim 1, wherein when the link from the link character string is invalid, the link from the link character string is effectively changed, and the link character string is And a change means for changing the link from the link character string to invalid when the link from is valid.

The invention described in claim 7 is attached to the received e-mail when the received e-mail is displayed in a terminal device that is connectable to the Internet and transmits / receives e-mail via the Internet. A determination means for determining whether to enable or disable the expansion of the attached file, and when it is determined that the expansion of the attachment file is to be enabled, the expansion of the attached file is set to be effective, and the attachment When it is determined that the expansion of the file is invalidated, the control means for setting the expansion of the attached file to be invalid, and the expansion of the attached file is validated or invalidated when the e-mail is displayed. or a has a user setting means for switching the user set, wherein the determining means, the sender of the email that the email received previously designated If it is the e-mail received from Email address said, determines that the Enable deployment of the attachment file attached to the received the e-mail, to each folder to store the e-mail, to be stored in the folder It is determined whether expansion of the attached file attached to the e-mail is valid or invalid, and the user setting unit invalidates expansion of the attached file attached to the e-mail by the determining unit. Then, for the e-mail in the folder storing the e-mail to be determined, when the display of the e-mail switched to enable the expansion of the attached file by the user setting unit is terminated, the attached file It is characterized by changing so as to invalidate the expansion of .

The invention according to claim 8 is the terminal device according to claim 7 , wherein the determination unit determines whether to enable or disable the expansion of the attached file for each received e-mail. It is characterized by discriminating.

Further, the invention according to claim 9, in the terminal apparatus according to claim 7, when the deployment of the attachment has been disabled, to change the setting to enable deployment of the attachment, the When the expansion of the attached file is set to be valid, there is further provided a changing means for changing the setting to disable the expansion of the attached file.

The invention according to claim 10 is a program of a terminal device that is connectable to the Internet and transmits / receives an e-mail via the Internet, and displays the received e-mail on a computer. A determination function for determining whether to enable or disable a link from a link character string included in an e-mail, and the received e-mail when it is determined to enable a link from the link character string An extraction function for extracting a link character string included in the link, an identification display function for identifying and displaying the link character string extracted by the extraction function as a link target, and a link destination from the link character string identified and displayed by the identification display function Characters that enable access to the Internet via the Internet and are not identified and displayed by the identification display function A control function to disable access over the Internet from, when displaying the electronic mail, disables links from or the link character string to enable a link from the link character string by the user setting And a user setting function for switching whether or not to determine whether the received e-mail is the e-mail received from a pre-designated e-mail address. And determining that the link from the link character string included in the received e-mail is valid, and for each folder storing the e-mail, from the link character string included in the e-mail stored in the folder Whether to enable or disable the link, and the user setting function uses the determination function to A link from the link character string is validated by the user setting function for the e-mail in the folder storing the e-mail that is determined to invalidate the link from the link character string included in the child mail. When the display of the switched e-mail is terminated, a change from the link character string is made invalid .

According to the eleventh aspect of the present invention, in the terminal device that is connectable to the Internet and transmits / receives an electronic mail via the Internet, the received electronic mail is displayed when the received electronic mail is displayed on a computer. A function for determining whether to enable or disable the expansion of the attached file attached to the file, and when it is determined that the expansion of the attached file is to be enabled, the expansion of the attached file is set to be enabled. A control function that disables the expansion of the attached file when it is determined that the expansion of the attached file is invalidated, and when the e-mail is displayed, a program for realizing a user setting function of switching by either the user setting is disabled, the determination function, receiving When the electronic mail is the electronic mail received from the source e-mail address previously specified, it determines that the Enable deployment of the attachment file attached to the received the e-mail, the e-mail For each folder to be stored, it is determined whether expansion of the attached file attached to the e-mail stored in the folder is to be enabled or disabled, and the user setting function is the electronic function by the determining function. The electronic mail in the folder storing the electronic mail that is determined to disable the expansion of the attached file attached to the mail is switched to enable the expansion of the attached file by the user setting function. when you are finished viewing of e-mail, especially to change to disable the deployment of the attached file To.

  According to the present invention, it is possible to appropriately handle a link character string included in a received electronic mail.

(1) The first embodiment will be described below.
(1-1) Device configuration example

  FIG. 1 is a block diagram illustrating a configuration example when a terminal device 100 having an electronic mail function and an Internet connection function is a mobile phone device.

  The electronic mail is an electronic message in an electronic mail system that exchanges an electronic message using an electronic mail application software installed between the terminal devices 100 via an electronic mail server (not shown). I mean. The e-mail function includes a user interface function for interacting with the user, a communication processing function for transmitting / receiving e-mail to / from the mail server, a file attachment function for attaching a file to the e-mail, and the like. Further, as described above, the terminal device 100 shown in FIG. 1 is a mobile phone device, but other electronic mails such as a notebook personal computer, a PDA (Personal Digital Assistant), a car navigation device, etc. can be transmitted and received. The terminal device 100 may be used.

  The Internet connection function is a function that starts web browser software and browses various websites expressed in a hypertext description language (HTML (Hyper Text Markup Language) etc.) provided on the Internet. Point to. The hypertext is a system that mutually references (hyperlinks) documents scattered on the Internet by embedding a link destination of another document in the document.

  When performing the telephone function of the terminal device 100, the communication unit 10 demodulates and outputs a radio signal received via the antenna 12 into a reception baseband signal. The received baseband signal is output as sound from the speaker 52 via the telephone unit 50. The communication unit 10 takes in the voice data input from the microphone 54 via the telephone unit 50, encodes it into a transmission baseband signal, and sends it out via the antenna 12. As described above, the conversation between the terminal devices 100 via the wireless communication network is performed.

  Further, the communication unit 10 also performs data transmission / reception via a packet communication network such as e-mail when executing the communication processing function of the e-mail function described above. Specifically, when the communication unit 10 starts e-mail application software stored in the storage unit 60 and transmits an e-mail to an e-mail server, the communication unit 10 mainly uses a protocol called SMTP (Simple Mail Transfer Protocol). When an e-mail that has been used and is received by the e-mail server is taken into the terminal device 100, a protocol called POP3 (Post Office Protocol 3) is mainly used. As described above, exchange of electronic mail or the like between the terminal devices 100 via the packet communication network is performed.

  The telephone unit 50 performs noise removal processing and amplification processing on the analog audio signal output from the microphone 54, converts the analog audio signal into a digital signal, and outputs the digital signal to the central control unit (CPU) 70. In addition, the telephone unit 50 converts the digital audio signal output from the central control unit 70 into an analog signal, performs noise removal processing and amplification processing, and outputs the analog signal to the speaker 52.

  The display unit 40 is configured as a housing including a display such as an LCD (Liquid Crystal Display), for example, and is received via the operation result in the operation unit 20 or the communication unit 10 when executing the above-described user interface function. An e-mail or the like is displayed.

  The operation unit 20 is configured as a housing including keys for dial input, character input, and various command inputs.

  The power supply unit 30 is a power supply source of the terminal device 100.

  The storage unit 60 is a memory that stores programs executed by the central control unit 70 and various data. For example, the storage unit 60 stores e-mail application software for the e-mail function, accompanying electronic phone book data, Web browser software for the Internet connection function, search engine software, and the like.

  The storage unit 60 stores table information 62 in which a mail link flag and a folder link flag are set as shown in FIG. In the example shown in FIG. 2, the inbox is a mail folder in which e-mails are normally stored, and the XX folder is a mail folder set by the user separately from the inbox. Is a mail folder for storing an e-mail that has been determined to be junk mail by the function of the e-mail application software. In this embodiment, the distribution of e-mail to each mail folder other than the inbox is performed by the automatic distribution function of the e-mail application software, but the e-mail is distributed to each mail folder by a manual operation by the user. May be.

  The mail link flag is a flag for setting whether to enable or disable the access to the link destination via the link character string indicating the address information of the link destination included in the text of the email. is there. The link character string is a URL (Uniform Resource Locator. For example, “http: //www.***.***” etc.) or an e-mail address (eg “*** @ ** *. *** ”etc.). In this embodiment, the link is set to be valid when the mail link flag is 0, and the link is set to be invalid when the mail link flag is 1.

  Note that the link valid means that, for example, it is possible to use an anchor element (A element) in HTML and a hyperlink function using an element that emphasizes a specific phrase, for example, italic characters, underlined characters, and other text colors. The link character string can be identified and displayed, such as by displaying it in a different color, and the link character string that is identified and displayed can be jumped (accessed) to the link destination when selected by clicking the cursor on the display screen. It means being in a state. The link invalid means that the link character string is displayed in the same normal manner as the text of the email other than the link character string, and even if the displayed link character string is clicked with the cursor, the character string is simply displayed. This means that it is in an inactive state that cannot be jumped (accessed). For example, in the example illustrated in FIG. 2, the mail 1 and the mail 3 are set to be valid and the mail 2 is set to be invalid in the XX folder.

  By setting the mail link flag as described above, it is possible to arbitrarily set whether the URL or the e-mail address in the text body is valid or invalid for each e-mail. Thus, for example, when confirming a junk mail, an e-mail message indicating that a URL or an e-mail address in the text body of the junk mail is mistakenly clicked to access the URL or the e-mail address. It can be prevented in advance.

  The folder link flag enables or disables access to the link destination by the link character string included in the text of the e-mail stored in the e-mail folder for each e-mail folder storing the e-mail. It is a flag to set whether to do. In this embodiment, the link is valid when the folder link flag is 0, and the link is invalid when the folder link flag is 1. For example, in the example shown in FIG. 2, e-mails stored in the inbox and the OO folder are set to link valid, and e-mails stored in the junk folder are set to link invalid. Note that an e-mail stored in a mail folder with a folder link flag of 1 (link is invalid) can be changed to 0 when the e-mail is opened and displayed on the display unit 40, that is, the link is valid. To do.

  By setting the folder link flag as described above, whether the URL or the email address in the text body of the e-mail stored in the e-mail folder is valid or invalid for each mail folder. It becomes possible to set uniformly. As a result, by checking the default settings for the mail folder (for example, inbox) for which links are uniformly enabled and for the mail folder (for example, spam folders) for which links are uniformly disabled, confirmation of spam mails, etc. Work can be performed easily and reliably. Further, the default setting can be arbitrarily changed.

  The central control unit 70 performs overall control of the terminal device 100 by executing a program stored in the storage unit 60. By executing such a program, various functions of the terminal device 100 are realized.

(1-2) Device Operation Example FIGS. 3, 4, and 5 are flowcharts for explaining the operation of the terminal device 100 in the case of the first embodiment. It should be noted that the subject of the operation shown below is the central control unit 70 unless otherwise indicated.

  It is assumed that the mail link flag and the folder link flag are set in advance in the storage unit 60 of the terminal device 100 as shown in FIG. 2 (S300). Note that the mail link flag can be set / changed even while the electronic mail is being displayed.

  When the standby screen is displayed on the display unit 40 of the terminal device 100 (S301), when an e-mail is received (S302: YES), the display is switched to display that the e-mail has been received, and the received e-mail is a mail. The files are sequentially stored in the folder (S303), and the display returns to the standby screen. The standby screen is displayed when no email is received (S302: NO), the email application software is not activated (S304: NO), and no other operations are performed. (S305: NO, S306).

  When the e-mail application software is started (S304: YES) and an e-mail stored in a mail folder such as a reception folder is opened (S307: YES), the central control unit 70 stores the corresponding e-mail stored in the storage unit 60. It is determined whether the mail link flag corresponding to the e-mail is 0 (link valid) or 1 (link invalid) (S312). That is, when the mail link flag is set to 0, the central control unit 70 determines that access to the link destination via the link character string included in the text of the received electronic mail is valid. On the other hand, when the mail link flag is set to 1, the central control unit 70 determines that access to the link destination via the Internet is invalid. When opening an e-mail stored in a mail folder in which the folder link flag is set to 1, the central control unit 70 does not need to determine that the mail link flag is 1, but the link destination by the link character string. Always treat Internet access as invalid.

  Specifically, when the mail link flag is set to 0 (S312: YES), the central control unit 70 performs a process of extracting a link character string included in the text of the e-mail (S313). As a result, when the link character string is extracted (S314: YES), the central control unit 70 performs identification display on the display unit 40 with the link character string as a link target, and accesses the link destination via the Internet. Is set in a state in which it is possible (S315, S316). On the other hand, when the mail link flag is set to 1 (S312: NO), the central control unit 70 displays the normal display of the link character string as a non-link target and the same non-link target as the text other than the link character string. This is performed in the unit 40, and the link destination is set in a state where access via the Internet is impossible (S316).

  It should be noted that after the e-mail application software activation operation is performed (S304: YES), the e-mail application software is terminated in addition to the operation of opening the e-mail stored in the mail folder (S307: NO). (S308 YES, S309), other electronic mail operations may be performed (S310: YES).

  When a pointing operation indicating the coordinate position in the text body of the e-mail is performed with the e-mail displayed on the display unit 40, a link character string included in the text body of the e-mail is clicked (S400: (YES, S401: YES), the central control unit 70 performs a predetermined link process (S402). For example, when the link character string is a URL, the predetermined link process refers to a process for starting a Web browser and accessing a Web site indicated by the URL. Alternatively, when the link character string is an email address, the new email creation screen opens, and further, the processing for making the email address automatically inserted at the destination location on the new email creation screen Point to.

  Further, in a state where the e-mail is displayed on the display unit 40, the central control unit 70 displays the link character string included in the text body of the e-mail set to link valid (identification display) as a link invalid (normal display). ) Or a link valid / invalid switching operation to change the link character string included in the text body of the email set to link invalid (normal display) to link valid (identification display). it can. Specifically, when a link valid / invalid switching operation is performed (S403: YES), the central control unit 70 changes the mail link flag set to 0 in the storage unit 60 to 1 (S404: YES, S405). Alternatively, the mail link flag set to 1 in the storage unit 60 is changed to 0 (S404: NO, S406). Needless to say, the identification display is switched in association with the change of the mail link flag setting. Thereby, for example, even if the link is determined to be invalid because it is determined as junk mail, it can be arbitrarily changed to the link valid setting when it is determined that the electronic mail is legitimate by visual confirmation by the user.

  Further, in a state where the electronic mail is displayed on the display unit 40, the central control unit 70 can also prohibit a response operation such as a reply to the electronic mail displayed on the display unit 40 and forwarding. Specifically, the central control unit 70 performs a reply / transfer process when replying / forwarding the electronic mail displayed on the display unit 40 (S504: YES) (S505). On the other hand, when a reply / transfer to the e-mail displayed on the display unit 40 is not performed (S504: NO), the process proceeds to another e-mail display operation (S506, S507). Accordingly, secondary damage can be prevented by prohibiting a response operation to a URL or an e-mail address in a spam mail whose link is invalid. Also, while a user is performing an operation to confirm spam that is set to link invalidity, it is possible to safely confirm spam that is set to link invalidity by invalidating the response to the email. Can do.

  When the user has finished reading the text of the email and the display of the email is closed by the user (S500: YES, S501), the central control unit 70 sets the folder link flag of the mail folder storing the email to 1 If it has been set (S502: YES), a process for resetting the mail link flag of the electronic mail to 1 is performed (S503). That is, when the display of the e-mail stored in the mail folder in which the folder link flag is set to 1 is closed, the central control unit 70 performs a process for always resetting the e-mail to be invalid. As a result, if the folder link flag of the mail folder storing the e-mail is set to 1, when the link is changed from invalid to valid with the link valid / invalid switching operation, the e-mail display is closed. By returning the link from the link valid to the link invalid, it becomes safe when displaying the electronic mail again.

  As described above, in the first embodiment, an erroneous operation is performed on the link character string included in the text body of the e-mail, and a link process unintended by the user is executed. Can be prevented.

  In addition, when the link character string is a URL, it is possible to prevent an unintended access to the Web side of the URL destination by accidentally starting the Web browser.

  Further, when the link character string is an e-mail address, it is possible to prevent the new mail creation screen having the e-mail address destination from being erroneously activated.

  In addition, even when the automatic distribution function of each e-mail to each mail folder is used, it is easy and sure whether the link from the link character string is valid or invalid for each e-mail. Can be determined.

  In addition, by determining whether the link is valid or invalid for each mail folder storing the e-mail, for example, link character strings included in the text body of all e-mails in the inbox It is possible to treat the link uniformly as valid, and it is possible to treat the link character string included in the text body of the e-mail in the junk folder as invalid link. As a result, it is possible to safely perform spam mail confirmation work and the like.

  Further, by invalidating a response such as a reply or transfer of an email determined to be invalid, a response to an email that may be unsafe can be prevented in advance.

  Even when it is determined that the link is invalid, if the content of the e-mail can be confirmed and handled as the link valid, it can be arbitrarily changed to the link valid setting.

  In addition, access via the Internet to the link destination by the link character string included in the e-mail from the transmission source specified in advance using the electronic phone book data stored in the storage unit 60 is always valid (ie, By handling the mail link flag as 0), it is possible to access the link destination by the link character string included in the secure e-mail via the Internet without trouble. In this case, the link valid or link invalid can be arbitrarily switched by making it possible to change the designation of the source address for validating the link in the electronic telephone directory data based on the user setting via the operation unit 20. May be. If the display of the e-mail is closed in a state where it is determined that the link is invalid, the e-mail destination mail address may be registered in the spam mail distribution list used by the automatic distribution function.

(2) A second embodiment will be described below.
(2-1) Device Configuration Example The configuration of the terminal device 100 in the case of the second embodiment is the same as the configuration of the first embodiment shown in FIG. 1, but the storage unit 60 has a configuration as shown in FIG. In addition to the mail link flag and the folder link flag, table information 64 in which a mail attachment expansion flag and a folder attachment expansion flag are set is stored.

  The mail attachment expansion flag is a flag for setting whether to enable or disable the expansion of an attached file (text file, audio file, image file, etc.) attached to the received electronic mail. In the present embodiment, when the mail attachment expansion flag is 0, the expansion of the attached file is set to be valid, and when the mail attachment expansion flag is 1, the expansion of the attachment file is set to be invalid. For example, in the example shown in FIG. 6, among the emails stored in the XX folder, the expansion of the attached file is set to be valid for the mail 1 and the mail 3, and the expansion of the attached file is set to be invalid for the mail 2. .

  By setting the mail attachment expansion flag as described above, it is possible to arbitrarily switch whether or not to expand the attached file for each electronic mail. As a result, for example, it is possible to prevent a dangerous attachment file (for example, a file that causes computer virus contamination) attached to a junk mail from being unintentionally expanded.

  The folder attachment expansion flag is a flag for setting whether to enable or disable the expansion of the attached file for each mail folder storing the received electronic mail. In this embodiment, when the folder attachment expansion flag is 0, the expansion of the attached file is set to be valid, and when the folder attachment expansion flag is 1, the expansion of the attachment file is set to be invalid. For example, in the example shown in FIG. 6, the expansion of the attached file is set to be valid for the e-mail stored in the inbox, and the expansion of the attached file is set to be invalid for the e-mail stored in the junk folder.

  By setting the folder attachment expansion flag as described above, it is possible to arbitrarily switch whether or not to expand the attached file for each mail folder. As a result, a mail folder (for example, an inbox) that uniformly enables the expansion of the attached file and a mail folder (for example, a nuisance folder) that uniformly disables the expansion of the attached file are set as defaults in advance. As a result, it is possible to easily and reliably perform confirmation work such as spam mail. Further, the default setting can be arbitrarily changed.

(2-2) Device Operation Example FIGS. 7, 8, and 9 are flowcharts for explaining the operation of the terminal device 100 in the case of the second embodiment. It should be noted that the subject of the operation shown below is the central control unit 70 unless otherwise indicated.

  It is assumed that a mail link flag, a folder link flag, a mail attachment expansion flag, and a folder attachment expansion flag are set in advance in the storage unit 60 of the terminal device 100 as shown in FIG. 6 (S700). Note that the mail link flag and the mail attachment expansion flag can be set / changed when an e-mail is displayed.

  A series of processes in S701 shown in FIG. 7 is the same as the processes in S301 to S315 shown in FIG.

  After the link character string included in the text body of the received electronic mail is identified (S701), the central control unit 70 determines whether or not an attached file is attached to the received electronic mail (S702). ). When it is determined that the attached file is attached (S702: YES), the attached file name is displayed on the display unit 40 of the terminal device 100 (S703).

  Next, the central control unit 70 determines whether the mail attachment expansion flag corresponding to the received electronic mail stored in the storage unit 60 is 0 or 1 (S704). When it is determined that the mail attachment expansion flag is 0 (S704: YES), that is, when the expansion of the attached file is valid, the central control unit 70 displays the attachment file icon on the display unit 40 of the terminal device 100. At the same time, the attachment file can be expanded by selecting the attachment file icon (S705, S706).

  On the other hand, when it is determined that the mail attachment expansion flag is 1 (S704: NO), that is, when the expansion of the attached file is invalidated, the central control unit 70 displays the attached file icon on the display unit 40 of the terminal device 100. Without displaying, only the name of the attached file is displayed as a character string for the purpose of confirming the existence and name of the attached file, so that the attached file cannot be expanded (S706). That is, since the attached file icon is not displayed, there is no way to expand the attached file. In the case of an e-mail stored in a mail folder in which the folder attachment expansion flag is set to 1, the central control unit 70 attaches to the e-mail without determining that the mail attachment expansion flag is 1. Always disable the expansion of attached file attachments.

  A series of processes in S800 shown in FIG. 8 is the same as the processes in S400 to S402 shown in FIG.

  If the attached file icon is clicked in the state where the attached file icon is displayed together with the text of the e-mail on the display unit 40 (S801: YES), the attached file is expanded (S802). In addition to the click of the attached file icon, other pointing operations may be performed (S803, S804).

  A series of processes in S805 shown in FIG. 8 is the same as the processes in S403 to S406 shown in FIG.

  Further, in a state where the attachment file icon is displayed together with the text of the e-mail on the display unit 40, the central control unit 70 invalidates the expansion of the attachment file of the e-mail for which the expansion of the attachment file is set to be valid. It is also possible to perform an attachment file expansion valid / invalid switching operation to change the setting or to effectively change the expansion of the attached file of an e-mail in which the expansion of the attached file is disabled. Specifically, when an attachment expansion valid / invalid switching operation is performed (S806: YES), the central control unit 70 changes the attachment expansion flag set to 0 in the storage unit 60 to 1 (S807: YES). , S808), or the attached file expansion flag set to 1 in the storage unit 60 is changed to 0 (S807: NO, S809). Thereby, for example, when it is determined that the electronic mail is valid even when the expansion of the attached file is invalid, the expansion of the attached file can be effectively changed.

  A series of processing of S900 shown in FIG. 9 is the same as the processing from S500 to S507 shown in FIG.

  When the user has finished reading the e-mail and the display of the e-mail is closed by the user, the central control unit 70, when the folder attachment expansion flag of the mail folder storing the e-mail is set to 1 (S901) : YES), a process for setting the mail attachment expansion flag of the electronic mail to 1 is performed (S902). That is, when the display of the e-mail stored in the mail folder with the folder attachment expansion flag set to 1 is closed, the central control unit 70 resets the expansion of the attachment of the e-mail to invalid. Process. As a result, if the folder attachment expansion flag of the mail folder storing the e-mail is set to 1, when the expansion of the attached file is changed from invalid to valid by the attachment file expansion valid / invalid switching operation, By reverting the expansion of the attached file from valid to invalid when the mail display is closed, it becomes safe when the electronic mail is displayed again.

  FIG. 10A shows a terminal when the mail ring flag is 0 (link is valid), the mail attachment file expansion flag is 0 (development of the attached file is valid), and the e-mail reply and transfer are set to be valid. 3 is an example of a screen display of the device 100. A URL is included as a link character string in the index field in the text body of the e-mail, and the URL is identified and displayed as italics and underlined characters, that is, the link is set to be valid. Also, an attached file icon is displayed in the upper column of the screen display, and the attached file can be expanded by clicking the attached file icon. Further, the lower column of the screen display displays that the reply is valid, and further displays that the transfer is valid when the submenu is opened.

  FIG. 10B shows a terminal when the mail ring flag is 1 (link invalid), the mail attachment file expansion flag is 1 (decompression of the attachment file is invalid), and the e-mail reply and transfer are disabled. 3 is an example of a screen display of the device 100. The index field in the text body of the e-mail contains a URL as a link character string, but the URL is not italic and is not underlined. Normal display is made, that is, the link is set to invalid. Further, the attached file icon is hidden in the upper column of the screen display, and there is no way to expand the attached file. In addition, there is no reply displayed in the lower part of the screen display, the reply of the e-mail is invalid, and even if the submenu is opened, there is no display related to forwarding, and the forwarding of the e-mail is invalid. .

  As described above, in the second embodiment, it is possible to prevent a dangerous attached file attached to an electronic mail from being unintentionally expanded.

  Further, even if the automatic distribution function of the e-mail to each mail folder is used, it is possible to determine whether the expansion of the attached file is valid or invalid for each e-mail.

  In addition, for each mail folder, for example, it is attached to all emails in the inbox by a mechanism for determining whether to enable or disable the expansion of the attached file attached to the email in the email folder. The expansion of the attached file can be treated as being uniformly valid, and the development of the attached file attached to all e-mails in the junk folder can be treated as being uniformly invalid. As a result, it is possible to safely confirm spam mails.

  Even if it is determined that the expansion of the attached file is invalid, the expansion of the attached file is arbitrarily changed to valid when the content of the e-mail can be confirmed and the expansion of the attached file can be treated as valid. be able to.

  Further, the expansion of the attached file attached to the e-mail from the transmission source designated in advance by the electronic telephone directory data stored in the storage unit 60 is always enabled (that is, the e-mail attachment expansion flag is set to 0). By handling as, it is possible to develop a safe attached file without trouble. In this case, the expansion of the attached file is enabled by making it possible to change the designation of the transmission source address for enabling the expansion of the attached file in the electronic phone book data based on the user setting via the operation unit 20. It is possible to arbitrarily switch between setting to disable or disable.

It is a block diagram which shows the structural example of the terminal device which has an electronic mail function. It is the figure which showed the content of the table information which concerns on 1st Embodiment. It is a flowchart for demonstrating operation | movement of the terminal device which concerns on 1st Embodiment. It is a flowchart for demonstrating operation | movement of the terminal device which concerns on 1st Embodiment. It is a flowchart for demonstrating operation | movement of the terminal device which concerns on 1st Embodiment. It is the figure which showed the content of the table information which concerns on 2nd Embodiment. It is a flowchart for demonstrating operation | movement of the terminal device which concerns on 2nd Embodiment. It is a flowchart for demonstrating operation | movement of the terminal device which concerns on 2nd Embodiment. It is a flowchart for demonstrating operation | movement of the terminal device which concerns on 2nd Embodiment. (A) is a figure which shows an example of the screen display of a terminal device, (b) is a figure which shows the other example of the screen display of a terminal device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Communication part 12 Antenna 20 Operation part 30 Power supply part 40 Display part 50 Telephone part 52 Speaker 54 Microphone 60 Storage part 62, 64 Table information 70 Central control part 100 Terminal device

Claims (11)

In a terminal device that can be connected to the Internet and sends and receives electronic mail via the Internet,
A discriminating means for discriminating whether to validate or invalidate a link from a link character string included in the received email when displaying the received email;
An extraction means for extracting a link character string included in the received e-mail when it is determined that a link from the link character string is valid;
Identification display means for identifying and displaying the link character string extracted by the extraction means as a link target;
Control that enables access from the link character string identified and displayed by the identification display means to the link destination via the Internet and invalidates access via the Internet from a character string that is not identified and displayed by the identification display means Means,
User setting means for switching whether to enable a link from the link character string or to disable a link from the link character string when displaying the e-mail ,
The determining means determines that the link from the link character string included in the received e-mail is valid when the received e-mail is an e-mail received from an e-mail address of a transmission source designated in advance. And for each folder storing the e-mail, determine whether to enable or disable the link from the link character string included in the e-mail stored in the folder,
The user setting means, for the e-mail in the folder storing the e-mail that is determined to invalidate the link from the link character string included in the e-mail by the determining means, the user setting means by the user setting means When ending the display of the email switched to enable the link from the character string, change to disable the link from the link character string,
A terminal device characterized by that.   The terminal device according to claim 1, wherein the link character string is a URL.   2. The terminal device according to claim 1, wherein the link character string is an e-mail address.   The terminal device according to claim 1, wherein the determination unit determines whether to enable or disable a link from the link character string for each received e-mail. .   2. The terminal device according to claim 1, further comprising response control means for invalidating a response to the electronic mail determined to invalidate the link from the link character string.   The terminal device according to claim 1, wherein when the link from the link character string is invalid, the link from the link character string is effectively changed, and when the link from the link character string is valid, the link character is changed. A terminal device further comprising changing means for invalidating a link from a column. In a terminal device that can be connected to the Internet and sends and receives electronic mail via the Internet,
A discriminating means for discriminating whether to enable or disable the expansion of the attached file attached to the received email when displaying the received email;
When it is determined that the expansion of the attached file is enabled, the expansion of the attached file is set to be enabled, and when it is determined that the expansion of the attached file is disabled, the expansion of the attached file is set to be disabled. Control means for
User setting means for switching whether to enable or disable the expansion of the attached file when displaying the e-mail, and user setting means ,
The determining means determines that the expansion of the attached file attached to the received e-mail is valid when the received e-mail is the e-mail received from the e-mail address of the transmission source designated in advance. Determining whether to enable or disable the expansion of the attached file attached to the email stored in the folder for each folder storing the email;
The user setting means, for the e-mail in a folder storing an e-mail that is determined to invalidate expansion of the attached file attached to the e-mail by the determining means, the user setting means by the user setting means When the display of the e-mail switched to enable the expansion of the file is finished, the expansion of the attached file is changed to be disabled.
A terminal device characterized by that. The terminal device according to claim 7 , wherein the determination unit determines whether to enable or disable the expansion of the attached file for each received e-mail. The terminal device according to claim 7 ,
When the expansion of the attached file is set to invalid, the setting is changed to enable the expansion of the attached file. When the expansion of the attached file is set to valid, the expansion of the attached file is disabled. A terminal device further comprising changing means for changing to the setting to be performed. In a program of a terminal device that can be connected to the Internet and sends and receives electronic mail via the Internet,
On the computer,
A determination function for determining whether to enable or disable a link from a link character string included in the received email when displaying the received email,
An extraction function for extracting a link character string included in the received e-mail when it is determined that the link from the link character string is valid;
An identification display function for identifying and displaying the link character string extracted by the extraction function as a link target;
Control that enables access from the link character string identified and displayed by the identification display function via the Internet to the link destination and invalidates access via the Internet from a character string that is not identified and displayed by the identification display function Function and
A program for realizing a user setting function for switching whether to enable a link from the link character string or to disable a link from the link character string according to a user setting when displaying the e-mail Because
When the received e-mail is the e-mail received from the e-mail address of the transmission source designated in advance, the determination function enables the link from the link character string included in the received e-mail. Determining, for each folder storing the e-mail, determining whether to enable or disable the link from the link character string included in the e-mail stored in the folder;
The user setting function uses the user setting function to determine the link in the folder storing the e-mail that is determined to invalidate the link from the link character string included in the e-mail by the determination function. When ending the display of the email switched to enable the link from the character string, change to disable the link from the link character string,
A program characterized by that. In a terminal device that can be connected to the Internet and sends and receives electronic mail via the Internet,
On the computer,
A determination function for determining whether to enable or disable the expansion of an attached file attached to the received e-mail when displaying the received e-mail;
When it is determined that the expansion of the attached file is enabled, the expansion of the attached file is set to be enabled, and when it is determined that the expansion of the attached file is disabled, the expansion of the attached file is set to be disabled. Control function to
A user setting function for switching whether to enable or disable the expansion of the attached file when displaying the e-mail, and a program for realizing a user setting function ,
The determination function determines that the expansion of the attached file attached to the received e-mail is valid when the received e-mail is the e-mail received from an e-mail address of a transmission source designated in advance. Determining whether to enable or disable the expansion of the attached file attached to the email stored in the folder for each folder storing the email;
The user setting function uses the user setting function to determine whether the attachment file attached to the e-mail is invalidated by the determination function. When the display of the e-mail switched to enable the expansion of the file is finished, the expansion of the attached file is changed to be disabled.
A program characterized by that.

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