JP2010033483A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide electronic equipment capable of performing access control without deteriorating operability and without giving sense of incongruity. <P>SOLUTION: The electronic equipment includes: an acquisition means 52 for acquiring a document described in a prescribed language from a designated server; a display means for displaying a web page generated on the basis of the document; a storing means 58 for storing access regulation information being information on access regulation of the web page; a determination means 54 for determining whether the document includes a description that generates a hyperlink to a URI to which access is inhibited by referring to the access regulation information stored in the storing means 58; and display regulating means 54 and 57 for generating a web page in which display regulation for invalidating the display of the hyperlink is performed and making the displaying means display the web page when it is determined that the document includes the description. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic device, and more particularly, to an electronic device including a browser that suitably regulates display of acquired content.

  In recent years, electronic devices such as mobile phones can use the Internet and can easily browse contents using a Web browser. In addition, electronic devices are owned by a wide range of age groups, making it easy to enjoy the Internet from children to adults.

  Such an electronic device can acquire an enormous amount of information using the Internet. On the other hand, there is an increasing need to limit the use of the Internet by managers who manage users who actually use electronic devices.

  For example, a parent or guardian as an administrator may allow or prohibit access to a specified domain for minor children as supervised persons who use electronic devices, and may restrict access to harmful content. is there. In addition, when a company as an administrator lends an electronic device used for work to an employee as a managed person, the company specifies a domain name that provides content that is not necessary for the work, and regulates access. Sometimes it is provided.

In order to respond to such needs, a technique is disclosed in which access control can be performed by prohibiting or permitting access to a specific URI with a Web browser alone according to the administrator's intention (see, for example, Patent Document 1). .
JP-A-11-205380

  When restricting access to a specific domain or the like in an electronic device, it is desirable for a managed person to naturally restrict access without feeling operability degradation or discomfort.

  The technology related to access restriction disclosed in Patent Document 1 displays a connection error screen indicating that access is restricted when a hyperlink with a specific URI for which access is prohibited is selected. However, the user feels uncomfortable with the error screen displayed and lacks operability.

  In many web pages provided today, there are many web pages configured by incorporating, for example, image data acquired from a URI other than the URI accessed by the user as an advertisement image. For this reason, even if an access-permitted URI is accessed and a Web page is displayed, information acquired from the access-prohibited URI may be displayed in the Web page.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an electronic apparatus that can perform access restriction without deteriorating operability and without feeling uncomfortable.

  In order to solve the above-described problem, an electronic device according to the present invention displays an acquisition unit that acquires a document described in a predetermined language from a specified server, and a Web page generated based on the document. Display means, storage means for storing access restriction information, which is information relating to access restriction of the Web page, and access restriction information stored in the storage means are referred to generate a hyperlink for a URI for which access is prohibited. Determining means for determining whether or not a description is included in the document, and when it is determined that the description is included in the document, display restriction is performed to disable display of the hyperlink. It is characterized by comprising display restriction means for generating a Web page and displaying it on the display means.

  The electronic apparatus according to the present invention includes an acquisition unit that acquires a document described in a predetermined language from a specified server, a display unit that displays a Web page generated based on the document, and the Web page. A storage means for storing access restriction information, which is information relating to access control, and a description for referring to the access restriction information stored in the storage means and obtaining or transmitting data from a URI for which access is prohibited. A determination means for determining whether the description is included in the document, and when the document is determined to include the description, the Web page on which display restriction for invalidating the description is performed is generated, It is characterized by comprising display restriction means for displaying on the display means.

  The electronic device according to the present invention can perform access restriction without deteriorating operability and giving a sense of incongruity.

  Embodiments of an electronic apparatus according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a diagram showing an external configuration of a foldable mobile phone 1 which is an example of an electronic apparatus according to the present invention. FIG. 1 (A) shows a configuration of an external appearance when viewed from the front when the cellular phone 1 is opened at about 180 degrees, and FIG. 1 (B) is a side view when the cellular phone 1 is opened. The structure of the external appearance seen from is shown.

  As shown in FIGS. 1A and 1B, the mobile phone 1 includes a first casing 12 and a second casing 13 that are hinge-coupled with a central hinge portion 11 as a boundary. It is formed so as to be foldable in the direction of the arrow X via the part 11. A transmitting / receiving antenna (antenna 31 in FIG. 3 to be described later) is provided at a predetermined position inside the mobile phone 1, and radio waves are transmitted to and from a base station (not shown) via the built-in antenna. Send and receive.

  On the front surface of the first housing 12, numeric keys “0” to “9”, numbers “A” to “W”, alphabets “A” to “Z” can be input 15, an operation key 14 including a cross key 16 having an up / down direction key, a confirmation key 17, and the like is provided.

  The cross key 16 can be operated in the up / down / left / right direction to move the cursor or the like displayed on the main display 21 in the up / down / left / right direction. In addition, various functions can be confirmed by pressing the confirmation key 17. The confirmation key 17 is also assigned a process to be displayed on the confirmation key function display unit 21 a provided at the lower part of the main display 21.

  Further, a left soft key 18 and a right soft key 19 are provided above the cross key 16 and the confirmation key 17 of the first housing 12. A side key 20 for operating the mobile phone 1 is provided on the side surface of the first housing 12. The left soft key 18, the right soft key 19, and the side key 20 are each assigned predetermined processing by being pressed toward the inside of the first housing 12. In particular, the left soft key 18 and the right soft key 19 are assigned processing to be displayed on the left soft key function display unit 21b and the right soft key function display unit 21c provided at the lower part of the main display 21.

  The first casing 12 is provided with a microphone 22 below the operation keys 14, and the microphone 22 collects the user's voice during a call.

  The first casing 12 has a battery pack (not shown) inserted on the back side, and when the end call / power key is pressed and turned on, power is supplied from the battery pack to each circuit unit. Is activated and ready to operate.

  On the other hand, the second housing 13 is provided with a main display 21 that occupies most of the area, and displays the contents of e-mail, a simple homepage, etc. in addition to the radio wave reception state and the remaining battery level. Can do. The main display 21 is a display constituted by, for example, an LCD (Liquid Crystal Display), an organic EL (ElectroLuminescence) display, and an inorganic EL (Inorganic ElectroLuminescence) display. The main display 21 functions as display means.

  Further, a receiver (receiver) 23 is provided at a predetermined position on the upper part of the main display 21, so that the user can make a voice call. Note that a speaker (not shown) as an audio output unit other than the receiver 23 is also provided at a predetermined position of the mobile phone 1.

  FIG. 2 is a diagram showing another external configuration of the foldable mobile phone 1 which is an example of the mobile phone according to the present invention. 2 constitutes a closed state in which the cellular phone 1 is rotated in the arrow X direction from the state of the cellular phone 1 in FIG. FIG. 2A shows an external configuration viewed from the front when the mobile phone 1 is closed, and FIG. 2B shows an external configuration viewed from the side when the mobile phone 1 is closed. Show.

  The second housing 13 is provided with a sub-display 24 composed of, for example, an LCD, an antenna pictograph showing the current antenna sensitivity level, a battery pictograph showing the current battery level of the mobile phone 1, The current time is displayed.

  FIG. 3 is a diagram illustrating an internal configuration of the mobile phone 1 according to the present embodiment.

  A radio signal transmitted from a base station (not shown) is received by an antenna 31 and then input to a receiving circuit (RX) 33 via an antenna duplexer (DUP) 32. The receiving circuit 33 mixes the received radio signal with the local oscillation signal output from the frequency synthesizer (SYN) 34 and converts the frequency into an intermediate frequency signal (down-conversion). Then, the reception circuit 33 orthogonally demodulates the down-converted intermediate frequency signal and outputs a reception baseband signal.

  The reception baseband signal from the reception circuit 33 is input to the CDMA signal processing unit 36. The CDMA signal processing unit 36 includes a RAKE receiver (not shown). In this RAKE receiver, a plurality of paths included in the received baseband signal are despread with each spreading code (that is, the same spreading code as that of the spread received signal). Then, the signals of the respective paths subjected to the despreading process are subjected to coherent Rake synthesis after the phase is adjusted. The data sequence after Rake combining is subjected to deinterleaving and channel decoding (error correction decoding), and then binary data determination is performed. Thereby, received packet data of a predetermined transmission format is obtained. This received packet data is input to the compression / decompression processor 37.

  The compression / decompression processing unit 37 is configured by a DSP (Digital Signal Processor) or the like, and the received packet data output from the CDMA signal processing unit 36 is separated for each medium by a demultiplexing unit (not shown), and for each separated medium. The decryption process is performed for each.

  The digital moving image signal decoded by the video codec of the compression / decompression processing unit 37 is input to the control unit 41. The control unit 41 displays a moving image based on the digital moving image signal output from the compression / decompression processing unit 37 on the main display 21 via a video RAM (for example, a VRAM) (not shown).

  On the other hand, in the call mode, the voice signal (analog audio signal) of the speaker (user) input to the microphone 22 is amplified to an appropriate level by the transmission amplifier 40 and then PCM encoded by the PCM codec 38. The digital audio signal after the PCM encoding is input to the compression / decompression processing unit 37. In addition, text data such as an electronic mail created by the control unit 41 is also input to the compression / decompression processing unit 37.

  The compression / decompression processor 37 compresses and encodes the digital audio signal output from the PCM codec 38 in a format corresponding to a predetermined transmission data rate. Thereby, audio data is generated. The compression / decompression processing unit 37 compresses and encodes the digital moving image signal output from the control unit 41 to generate moving image data. Then, the compression / decompression processing unit 37 multiplexes these audio data and moving image data by a demultiplexing unit (not shown) according to a predetermined transmission format and then packetizes them, and the packetized transmission packet data is transmitted to the CDMA signal processing unit 36. Output to.

  The CDMA signal processing unit 36 performs spread spectrum processing on the transmission packet data output from the compression / decompression processing unit 37 using a spreading code assigned to the transmission channel, and transmits the output signal after the spread spectrum processing to the transmission circuit ( TX) 35. The transmission circuit 35 modulates the signal after the spread spectrum processing using a digital modulation method such as a QPSK (Quadrature Phase Shift Keying) method. The transmission circuit 35 combines the digitally modulated transmission signal with a local oscillation signal generated from the frequency synthesizer 34 and frequency-converts (up-converts) the signal into a radio signal. Then, the transmission circuit 35 amplifies the radio signal generated by this up-conversion with high frequency so that the transmission power level instructed by the control unit 41 is obtained. The radio signal amplified by the high frequency is supplied to the antenna 31 via the antenna duplexer 32 and transmitted from the antenna 31 to a base station (not shown). The mobile phone 1 is also provided with a clock circuit 45 that measures the current accurate time.

  The control unit 41 includes a central processing unit (CPU), a read only memory (ROM), and a random access memory (RAM). The CPU is loaded into the RAM from a program stored in the ROM or the storage unit 42. Various processes are executed in accordance with various application programs, and various control signals are generated and supplied to each unit to control the mobile phone 1 in an integrated manner. The RAM appropriately stores data necessary for the CPU to execute various processes. The control unit 41 also includes a video RAM, and temporarily stores information related to the video displayed on the main display 21.

  The storage unit 42 includes, for example, a flash memory element that is an electrically rewritable and erasable nonvolatile memory, an HDD (Hard Disc Drive), and the like, and various application programs executed by the CPU of the control unit 41 and various types The data group is stored. The power supply circuit 44 generates a predetermined operating power supply voltage Vcc based on the output of the battery 43 and supplies it to each circuit unit.

  FIG. 4 is a functional block diagram schematically showing a functional configuration of a browser application executed by the control unit of the mobile phone according to the present embodiment.

  The browser application includes a browser control unit 51, an HTTP communication unit 52, an HTML analysis unit 54, and a content display unit 55. In addition, a reception / cache data storage unit 56, an HTML analysis result storage unit 57, and an access restriction information storage unit 58 are provided as storage areas for various data.

  The browser control unit 51 supplies an instruction to each unit provided in the browser application 50 and causes each unit to execute a process.

  The HTTP communication unit 52 is written in the HTML (Hyper Text Transfer Language) format based on HTTP (Hyper Text Transfer Protocol) which is a communication protocol for transmission / reception between the Web server (not shown) and the mobile phone 1. The document (HTML document) is transmitted / received.

  Note that the HTTP communication unit 52 appropriately transmits and receives data via a TCP / IP communication unit 53 that transmits and receives data based on a TCP / IP (Transmission Control Protocol / Internet Protocol) communication protocol system provided in the mobile phone 1. Send and receive. The HTML document acquired by the HTTP communication unit 52 is stored in the reception / Cash data storage unit 56.

  The HTML analysis unit 54 analyzes the HTML document stored in the reception / Cash data storage unit 56. An HTML document is described using a tag used to shape and display data such as text and image data displayed on a Web page. The HTML analysis unit 54 analyzes a tag used in the HTML document. At this time, the HTML analysis unit 54 performs analysis while performing display restriction processing on a predetermined tag based on the control of the browser control unit 51. The analysis result is stored in the HTML analysis result storage unit 57. The HTML analysis unit 54 functions as an analysis unit, a determination unit, and a display regulation unit in the present embodiment.

  The content display unit 55 displays the content of the Web page on the main display 21 based on the HTML analysis result stored in the HTML analysis result storage unit 57.

  Further, the browser application 50 includes an access restriction information setting unit 60, a UI control unit 61, and an access restriction information storage unit 58.

  The access restriction information setting unit 60 sets access restriction information that is information related to a URI or a domain where access is restricted when a user acquires a Web page. The access restriction information is composed of a URI and a domain for which access is prohibited. Note that the access restriction information may be composed of a URI or a domain permitted to be accessed.

  The UI control unit 61 receives an input for setting access restriction information via a UI (User Interface) displayed on the main display 21. The access restriction information setting unit 60 can also set data received via the network as access restriction information.

  The access restriction information may be configured such that the URI and domain can be individually set, or may be configured to be set collectively. For example, when a list of URIs and domains for which access is prohibited is acquired from a terminal device (not shown) on the administrator side via the network, the URIs and domains described in this list are set in a lump. Is preferred.

  Further, the access restriction information stored in the access restriction information storage unit 58 can be appropriately changed by the access restriction information setting unit 60. The UI control unit 61 receives an input for changing access restriction information via the UI.

  The access information set by the access restriction information setting unit 60 is stored in the access restriction information storage unit 58 as appropriate. Further, the access restriction information is read from the access restriction information storage unit 58 as necessary, and can be displayed on the main display 21 by the content display unit 55 or transmitted to the administrator through the HTTP communication unit 52. .

  The access restriction information setting unit 60 is configured so that a user other than the administrator of the mobile phone 1 cannot set access restriction information and change the access restriction information. For example, when the access restriction information setting unit 60 sets or changes the access restriction information, the access restriction information is requested to input a preset password, and the setting or changing of the access restriction information is permitted only when the correct password is input. Configured.

  Next, content display processing that is executed based on access restriction information set in the mobile phone 1 will be described.

  On a Web page, a hyperlink (link) that can jump to another Web page can be generated, and contents such as image data saved as a separate file can be incorporated as a part of the Web page. It has become. The mobile phone 1 according to the present embodiment can perform display restriction processing on the Web page configured as described above, and can effectively restrict access.

  FIG. 5 is a flowchart for explaining content display restriction processing executed by the mobile phone 1 in the present embodiment. This content display restriction process is executed in the browser application 50 realized based on the control of the control unit 41.

  In step S1, the browser control unit 51 of the browser application 50 determines whether or not a URI is designated. The browser control unit 51 receives an input of a URI via, for example, the operation key 14. If the browser control unit 51 determines that the URI has not yet been specified, the process waits until the URI is specified.

  On the other hand, when it is determined that the URI has been designated, the browser control unit 51 determines whether or not the designated URI is a URI for which access is permitted in step S2. The browser control unit 51 makes a determination with reference to the access restriction information stored in the access restriction information storage unit 58 as a storage unit. For example, when a URI or domain permitted to be accessed is set as the access restriction information, the browser control unit 51 permits access when the specified URI matches the URI or domain permitted to be accessed. It is determined that it is a URI. Alternatively, when a URI or domain for which access is prohibited is set in the access restriction information, the browser control unit 51 makes an access when the specified URI is not included in the URI or domain for which access is prohibited. It is determined that the URI is permitted.

  Hereinafter, in this embodiment, the case where a URI or a domain for which access is prohibited is set as access restriction information in the access restriction information storage unit 58 will be described.

  If it is determined that the designated URI is not a URI or domain for which access is permitted, the browser control unit 51 ends the content display process without acquiring the Web page.

  On the other hand, if it is determined that the specified URI is a URI or domain for which access is permitted, in step S3, the HTTP communication unit 52 serving as an acquisition unit determines the HTML document of the URI specified for the Web server. A command for requesting is generated and transmitted. The HTTP communication unit 52 acquires an HTML document from the Web server based on this request.

  The HTTP communication unit 52 stores the acquired HTML document in the reception / Cash data storage unit 56.

  In step S <b> 4, the HTML analysis unit 54 as a determination unit determines whether or not a tag including contents to be regulated is described in the HTML document. This determination is made with reference to the URI or domain for which access is prohibited, stored in the access restriction information storage unit 58. For example, the HTML analysis unit 54 determines whether or not the HTML document includes a tag that generates a URI link that is prohibited from being accessed. In addition, the HTML analysis unit 54 determines whether or not a tag for making a data acquisition request or specifying a data transmission destination is included for a URI for which access is prohibited.

  Specifically, the HTML analysis unit 54, when analyzing an HTML document, if an anchor tag that is a tag that generates a hyperlink is included, the access generated by the anchor tag is set in advance. It is determined whether the URI is prohibited. An anchor tag in an HTML document is, for example, “<A HREF =” http: // www. AAA. BBB. co. jp "> CCC </A>". “Http://www.AAA.BBB.co.jp”, which is a URI described after “<A HREF =” ”, is a description indicating a URI in which a link is generated. The text described between “>” and “</A>” is the text (link text) assigned to generate a hyperlink for the specified URI. This link text is anchor-displayed as a hyperlink on the Web page. The browser control unit 51 performs an access process to a predetermined URI when the link text is selected.

  In addition, the anchor display in this embodiment means displaying the link text described in the anchor tag so that selection is possible. At this time, the link text is displayed so as to be distinguishable from the normal text. For example, the link text is displayed in bold, displayed in a different color, or displayed with an underline. Further, when the link text displayed as an anchor is selected by a cursor configured to be movable on a plurality of link texts using the cross key 16 or the like of the mobile phone 1, the link text is displayed in reverse video, or information on the link destination is displayed. It is configured to be displayed in a balloon or to change the design of the cursor.

  The HTML analysis unit 54 determines whether or not the URI for which the link is generated matches the URI or domain for which access is prohibited, which is stored in the access restriction information storage unit 58.

  Also, when an HTML document is analyzed, if an image tag, which is a tag for displaying predetermined image data, is embedded at the time of analyzing an HTML document, the acquisition request destination of the image data displayed by this image tag is accessed. It is determined whether or not the URI or domain is prohibited. The image tag in the HTML document is, for example, “<IMG SRC =” http: // www. AAA. BBB. co. jp / DDD. FFF. gif ">". “Http://www.AAA.BBB.co.jp/DDD.FFF.gif” which is a URI described after “<IMG SRC =” ”is an acquisition request for image data displayed on a Web page. This is a description indicating the destination.

  The image tag is described between “>” and “</A>” in the above-described anchor tag, and thus becomes image data (link image) assigned to the generation of the hyperlink. This link image is anchor-displayed as a hyperlink on the Web page. The browser control unit 51 performs an access process to a predetermined URI when the link image is selected.

  The link image displayed as an anchor is displayed so as to be selectable in the same manner as the link text. The link image is displayed so as to be distinguishable from normal image data. For example, the link image is displayed surrounded by a thick frame, or displayed surrounded by a frame of a different color.

  The HTML analysis unit 54 determines whether or not the URI described as the image data acquisition request destination matches the URI or domain forbidden for access stored in the access restriction information storage unit 58.

  Note that the HTML analysis unit 54 is not limited to an anchor tag and an image tag, and displays content having a predetermined URI as an acquisition request destination, such as a frame tag, an inline frame tag, an object tab, a form tag, and a script tag. A similar determination is made for the description of a tag that causes the URI to transmit data.

  When it is determined that the description of the tag subject to display restriction is not included in the HTML document, in step S5, the HTML analysis unit 54 as an analysis unit performs analysis according to the description of the acquired HTML document, and obtains it. The obtained analysis result is stored in the HTML analysis result storage unit 57.

  On the other hand, when it is determined that the HTML document includes a tag subject to display restriction, in step S6, the HTML analysis unit 54 as a display restriction unit performs predetermined display restriction processing on the HTML document. Further, the HTML analysis unit 54 stores the analysis result obtained by performing the predetermined display restriction process in the HTML analysis result storage unit 57.

  Specifically, the HTML analysis unit 54 does not anchor the link text and link image displayed on the Web page when an anchor tag that generates a hyperlink for the URI for which access is prohibited is included. The HTML document is changed to display restriction processing for invalidating hyperlink generation, and the analysis result is output. That is, the HTML analysis unit 54 performs display restriction processing for displaying link text and link images in the same manner as normal text and image data.

  In addition, the HTML analysis unit 54, when an image tag that displays image data that has an access request prohibited URI as an acquisition request destination is included, invalidates a description that displays the image data. And output the analysis result. The display restriction process performed by the HTML analysis unit 54 is, for example, a blank display without acquiring image data that should have been acquired and displayed from a predetermined acquisition request destination, or an alternative stored in the mobile phone 1 in advance. This is done by displaying the image data or text of the image, or ignoring (deleting) the description of the tag that displays the image data.

  In addition to the anchor tag and the image tag, the HTML analysis unit 54 also has a URI that matches the URI or domain for which access is prohibited for a tag that transmits / receives data to / from a predetermined URI. If a description to be set as a transmission destination is included, the display restriction process is performed by invalidating the description by changing the HTML document.

  Specifically, the HTML analysis unit 54 invalidates the description of tags (object tag, frame tag, inline frame tag, script tag, etc.) that display content acquired from a URI for which access is prohibited on a Web page. Display restriction processing is performed by changing to an HTML document. Also, if the HTML analysis unit 54 includes a description of a tag that automatically switches from the displayed Web page to a Web page for which access is prohibited (HTTP redirect), the HTML analysis unit 54 invalidates the description of this tag and performs access. Display restriction processing is performed by changing to an HTML document that is not performed. Further, the HTML analysis unit 54 generates a data input form, and if a description of a tag (form tag, script tag, etc.) that transmits this to a URI that is prohibited from access is included, an input form is generated. The display restriction process is performed by changing to an HTML document that invalidates data transmission.

  In step S <b> 7, the content display unit 55 causes the main display 21 to display the Web page of the URI specified in the specification determination step S <b> 1 based on the analysis result stored in the HTML analysis result storage unit 57.

  FIG. 6 is a diagram illustrating an example of a Web page displayed based on the analysis result obtained by analyzing the HTML document in the analysis step S5.

  In this Web page, links are generated and various contents including link images and link texts are displayed. Content A, content B, content C, and content D are displayed as link images. Content E and content F are displayed as link text. These link images and link texts are displayed as anchors, respectively, so that they can be distinguished from normal text and image data and can be selected. The link image is anchor-displayed when the outer frame of the display area of the image data is displayed with a thicker frame than the normal image data. For example, the link text is displayed in a color different from that of normal text and is anchor-displayed by displaying an underline.

  These link images and link text can be selected with a cursor that can be moved by operating the cross key 16 of the mobile phone 1. In addition, when the determination key 17 is pressed and the determination process displayed on the determination key function display unit 21a is performed, the browser control unit 51 performs an access process to a predetermined URI.

  The “return” displayed on the left soft key function display unit 21b is a function for displaying the web page displayed immediately before the currently displayed web page, and the left soft key 18 is pressed. Is executed. The “menu” displayed on the right soft key function display portion 21c is a function for displaying items of various functions that can be executed on the currently displayed web page, and the right soft key 19 is pressed. Is executed.

  FIG. 7 is a diagram showing an example of a Web page displayed based on the analysis result obtained by performing the display restriction process on the HTML document in the restriction analysis step S6.

  The Web page shown in FIG. 7 is different from the Web page shown in FIG. 6 in that the content A, content D, and content E are not anchored and the image data of the content A and content D is not displayed. is doing. For the convenience of explanation, the outer frame of the display area is displayed with a chain line, but the content A and the content D are actually displayed blank.

  Since the contents A and D are links to URIs whose access is prohibited and the image data has the access prohibited as the acquisition request destination, the description of the HTML document has been changed by the HTML analysis unit 54 . That is, the HTML analysis unit 54 performs a display restriction process for changing to an HTML document ignoring an anchor tag for anchor-displaying the content A and the content D. In addition, the HTML analysis unit 54 performs a display restriction process for changing to an HTML document that displays a place where the content A and the content D are displayed by an image tag as a blank.

  Further, since the content E is a content that is displayed based on a description for generating a link to a URI for which access is prohibited, the description of the HTML document is changed by the HTML analysis unit 54. In other words, the HTML analysis unit 54 performs a display restriction process for changing the texts “link utilization”, “high income at home”, and “supplement special price” to HTML documents that are displayed in the same manner as normal text. went.

  As a result, in the Web page of FIG. 7, only the link text and the link image in which the URI permitted to be accessed is set as the link destination are displayed in an anchorable manner. On the other hand, the link text and the link image in which the URI for which access is prohibited are set as the link destination are not anchor-displayed and are displayed so that they cannot be selected in advance.

  FIG. 8 is a diagram illustrating an example of a Web page displayed based on an analysis result obtained by performing another display restriction process on the HTML document in the restriction analysis step S6.

  Since the content A and the content D displayed on the Web page in FIG. 8 are links to URIs whose access is prohibited, the HTML analysis unit 54 converts the content A and the content D into an HTML document ignoring the anchor tag for anchor display. The display regulation process to change was performed. As a result, the content A and the content D in which the URI for which access is prohibited are set as the link destination are not anchored and displayed so that they cannot be selected.

  Further, FIG. 9 is a diagram showing still another example of the Web page displayed based on the analysis result obtained by performing the display restriction process on the HTML document in the restriction analysis step S6.

  Since the content A and the content D displayed on the Web page in FIG. 9 are image data whose access request destination is a URI that is prohibited from being accessed, a display restriction process in which predetermined alternative image data is displayed by the HTML analysis unit 54 Was done. As a result, predetermined image data stored in the mobile phone 1 in advance is displayed on the Web page. When the display restriction process for displaying the alternative text is performed by the HTML analysis unit 54, an alternative text such as “Image cannot be displayed” is displayed instead of the alternative image data of FIG. In addition, since the contents A and D are links to URIs whose access is prohibited, the HTML analysis unit 54 performs a display restriction process to change the anchor tag for anchor display of the contents A and D to an HTML document ignored. .

  Thus, the content display restriction process ends.

  According to the cellular phone 1, access restriction is effectively performed by realizing a display restriction process that does not generate a hyperlink for a URI or a domain that is prohibited to access a displayed Web page. be able to. That is, even if a user as a managed person wants to access a URI for which access is prohibited, access control can be effectively performed by not displaying a link in advance as the means.

  In addition, when accessing a URI for which access is prohibited, the operability for the user can be reduced by making it impossible to access in advance, compared to a case where an error screen indicating that the Web page cannot be displayed is displayed. It is also effective in that access can be restricted without compromising the security.

  Furthermore, the link text for the URI for which access is prohibited is displayed in the same display format as that of normal text data, the link image is displayed in the same display format as that of normal image data, or a blank display is performed. Since the alternative image data or the alternative text is displayed, the user can browse the Web page without feeling uncomfortable without being aware of the access restriction.

  Furthermore, by performing such display restriction processing, it is possible to suppress access to harmful sites due to operations not intended by the user and to automatically transmit user data, so not only access restriction, Damage to malicious crimes such as one-click scams and phishing scams can also be avoided.

  In the restriction analysis step S6, if the HTML analysis unit 54 includes content such as image data whose access request destination is a URI that is prohibited from being accessed by the HTML analysis unit 54, this is not acquired. After acquiring the analysis result in accordance with the description of the HTML document including acquisition of content such as data, display restriction processing that does not display the text or image data of the corresponding part at the time of display processing by the content display unit 55 may be performed. When the text or image data is a link text and a link image, it is not possible to select a restriction location for which display restriction processing has been performed by the browser control unit 51 during a selection operation on a Web page using a cursor. The control process is performed.

  Next, the display restriction release process performed on the Web page on which the display restriction process has been performed will be described.

  FIG. 10 is a flowchart for explaining display restriction release processing executed by the mobile phone 1 in the present embodiment. This restriction release processing is executed in the browser application 50 realized based on the control of the control unit 41.

  This display restriction release process is executed after the content display process of FIG. 5 is performed.

  In step S <b> 11, the browser control unit 51 serving as a display restriction release unit determines whether or not a display restriction release has been accepted.

  FIG. 11 is a diagram illustrating a display example of the submenu screen displayed on the Web page.

  When the “menu” displayed on the right soft key function display unit 21 c shown in FIG. 7 is selected by pressing the right soft key 19, the browser control unit 51 can execute various types of web pages. Displays a submenu screen that lists the function items. Items of various functions displayed on the submenu screen can be selected with the cursor by operating the cross key 16 of the mobile phone 1. In addition, the browser control unit 51 performs the selected process by pressing the confirmation key 17 and performing the determination process displayed on the confirmation key function display unit 21a.

  If the browser control unit 51 determines that the process for executing “restriction release” displayed on the submenu screen has not yet been accepted, the process waits until the process is accepted.

  When the browser control unit 51 determines that the “restriction release” displayed on the menu screen is selected and determined, and the release of the display restriction is accepted, in step S12, the browser control unit 51 releases the display restriction, The contents of the page are displayed on the main display 21.

  FIG. 12 is a diagram illustrating a display example of a Web page when the display restriction process performed on the Web page is canceled.

  In the Web page on which display restriction is performed as shown in FIG. 7, the link text and link image of the content A, content D, and content E corresponding to the restriction part are not anchored. In addition, display is not performed for image data whose access request destination is a URI for which access is prohibited. On the other hand, in the Web page after the display restriction release shown in FIG. 12, the browser control unit 51 displays text and image data that have not been anchor-displayed in a selectable manner. The browser control unit 51 also displays the image data that has been displayed as a blank. Note that text and image data displayed so that the display restriction is canceled and can be selected are referred to as a release link text and a release link image.

  At this time, it is preferable to display the release link text and the release link image for which the display restriction has been released so that the link text and the link image that are not subject to the display restriction can be identified. For example, a difference is provided in the color or font of the release link text and the link text, or a balloon that notifies that the display restriction is released is provided in the release link text and the release link image.

  In FIG. 12, the browser control unit 51 displays the release link text in italics as an example so that it can be distinguished from the link text. In addition, the release link image is displayed so that the release link image and the link image can be identified by displaying the thickness of the line surrounding the outer frame of the display area of the image data narrower than the link image.

  When canceling the content display restriction on the Web page, the HTTP communication unit 52 acquires content such as an HTML document or image data incorporated in the Web page from the Web server. Further, the HTML analysis unit 54 changes the HTML document so that the release link text and release link image, and the link text and link image are displayed in an identifiable manner, and outputs the analysis result. Further, the content display unit 55 displays a web page on the main display 21.

  In step S <b> 13, the browser control unit 51 determines whether or not selection of text or image data displayed in a selectable manner on the Web page has been accepted. The selection can be made with a cursor that can be moved by operating the cross key 16 of the mobile phone 1 as the selection means. In addition, the selection operation is determined by pressing the confirmation key 17 and performing the determination process displayed on the confirmation key function display unit 21a. The text or image data displayed so as to be selectable means a release link text and link text, or a release link image and link image.

  The browser control unit 51 waits for processing until text or image data is selected.

  If text or image data is selected, in step S14, the browser control unit 51 determines whether the selected text or image data is a release link text or a release link image. If the selected text or image data is a link text or link image for which access is permitted, the browser control unit 51 executes a process for accessing a predetermined URI, and ends the display restriction release process.

  On the other hand, if the selected text or image data is a release link text or a release link image, the browser control unit 51 displays a restriction release menu on the main display 21 in step S15.

  FIG. 13 is a diagram illustrating a display example of a restriction cancellation menu screen displayed on a Web page whose display restriction is canceled.

  On the restriction release menu screen, for example, an item for executing a process for “releasing” access restriction for a URI for which access is prohibited and a process for “application for release” for access restriction for a URI for which access is prohibited are executed. Items to be displayed are displayed.

  In step S <b> 16, the browser control unit 51 determines whether or not an instruction for canceling or restricting access restrictions has been received. An instruction for canceling or canceling application is accepted by selecting “cancel” or “applying cancel” from the restriction canceling menu screen using the cross key 16 and the confirmation key 17 of the mobile phone 1, for example. The browser control unit 51 waits for processing until an instruction is received.

  On the other hand, when the browser control unit 51 receives an instruction for either “cancel” or “apply for cancellation”, the browser control unit 51 executes display restriction cancellation or cancellation application processing in step S17.

  For example, when the browser control unit 51 receives a “cancel” instruction, the UI screen for accepting input of a password is displayed on the main display 21. The browser control unit 51 serving as the password determination unit is selected by the administrator when the input of the correct password set in advance by the administrator and stored in the mobile phone 1 is received via the numeric key 15 as the input unit. The access restriction for the link destination set in the text or the release link image is released.

  In addition, when the browser control unit 51 as the application means receives an instruction to “apply for cancellation”, a notification is sent from the mobile phone 1 to the administrator asking for permission to cancel the restriction (not shown). ) Is displayed on the main display 21. When the mobile phone 1 receives a notification to cancel the access restriction from the terminal device as an administrator, the browser control unit 51 restricts access to the link destination set in the selected release link text or release link image. To release. The notification for applying for cancellation is preferably performed using, for example, an e-mail browser (not shown) as a transmission / reception means provided in the mobile phone 1.

  Note that the above-described method of canceling access restriction or requesting cancellation is merely an example, and is not limited thereto.

  In step S <b> 18, the browser control unit 51 determines whether or not access restriction cancellation is permitted by the cancellation / release application process executed in the cancellation / release application processing step S <b> 17. When the browser control unit 51 determines that the release of the access restriction is not permitted, the browser control unit 51 does not perform the access process for the URI set as the link destination and ends the display restriction release process. At this time, the browser control unit 51 notifies the user that the display of the Web page is not permitted.

  On the other hand, if the browser control unit 51 as the access permission means determines that the release of the access restriction is permitted, in step S19, the browser control unit 51 performs an access process to the URI set in the selected release link text or release link image, and the content Is acquired and Web page display processing is performed. The display restriction release process is thus completed.

  According to the mobile phone 1, by providing a means for a user as a managed person to cancel the display restriction, the operability for browsing a Web page is improved for a user who is subject to the access restriction while performing the access restriction. Can be made.

  When the browser application 50 is configured to store the HTML document of the Web page displayed in the content display process and the image data incorporated in the Web page in the reception / Cash data storage unit 56, The browser control unit 51 may read the HTML document stored in the reception / Cash data storage unit 56 and display the Web page on which the display restriction is released based on the HTML document on the main display 21.

  In this embodiment, the display restriction process is performed by analyzing a document described in the HTML language. However, the present invention is not limited to this, and a document written in another markup language such as XML is analyzed and the display restriction process is performed. Processing may be performed.

  In addition to the mobile phone 1, the electronic device according to the present invention can browse PDAs (Personal Digital Assistants), personal computers, portable game machines, portable music players, portable video players, and other Web pages. The present invention can also be applied to electronic devices equipped with possible browser applications.

  The series of processes described in the embodiments of the present invention can be executed by software, but can also be executed by hardware.

FIG. 11 is a diagram showing an external configuration of a foldable mobile phone that is an example of an electronic apparatus according to the invention. The figure which shows the structure of the other external appearance of the foldable mobile telephone which is an example of the mobile telephone which concerns on this invention. The figure which shows the structure inside the mobile telephone in this embodiment. The functional block diagram which showed schematically the functional structure of the browser application performed by the control part of the mobile telephone in this embodiment. The flowchart explaining the content display control process performed with the mobile telephone in this embodiment. The figure which shows an example of the web page displayed based on the analysis result analyzed as the description of the HTML document. The figure which shows an example of the web page displayed based on the analysis result in which the display control process was performed with respect to the HTML document. The figure which shows the other example of the web page displayed based on the analysis result in which the display control process was performed with respect to the HTML document. The figure which shows the further another example of the web page displayed based on the analysis result by which the display control process was performed with respect to the HTML document. The flowchart explaining the display restriction cancellation process performed by the mobile phone in the present embodiment. The figure which shows the example of a display of the submenu screen displayed on the web page. The figure which shows the example of a display of a web page at the time of canceling the display control processing performed with respect to the web page. The figure which shows the example of a display of the regulation cancellation | release menu screen displayed on the web page by which the display regulation was cancelled | released.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile telephone 11 Hinge part 12 1st housing | casing 13 2nd housing | casing 14 Operation key 15 Number key 16 Cross key 17 Confirmation key 18 Left soft key 19 Right soft key 20 Side key 21 Main display 21a Confirmation key function display part 21b Left soft key function display unit 21c Right soft key function display unit 22 Microphone 23 Receiver 24 Sub display 41 Control unit 50 Browser application 51 Browser control unit 52 HTTP communication unit 53 PCT / IP communication unit 54 HTML analysis unit 55 Content display unit 57 Analysis result storage unit 58 Access restriction information storage unit 60 Access restriction information setting unit 61 UI control unit

Claims (10)

Obtaining means for obtaining a document described in a predetermined language from a designated server;
Display means for displaying a web page generated based on the document;
Storage means for storing access restriction information which is information relating to access restriction of the Web page;
A determination unit that refers to the access restriction information stored in the storage unit and determines whether or not the document includes a description that generates a hyperlink for a URI for which access is prohibited;
A display restriction unit configured to generate the Web page on which the display restriction for invalidating the display of the hyperlink is generated and to display on the display unit when it is determined that the description is included in the document; An electronic device characterized by that. Analyzing the document described in the predetermined language, further comprising an analysis means for outputting an analysis result;
When the determination unit determines that the description is included in the document, the display restriction unit changes the description for generating the hyperlink when the document is analyzed, thereby changing the description of the hyperlink. The electronic device according to claim 1, wherein the display restriction is performed to invalidate the display. Display restriction release means for selectively displaying a restriction location in the web page where the display restriction is performed by the display restriction means;
A selection means for selecting one of the restricted portions displayed so as to be selectable;
The electronic device according to claim 1, further comprising: an access permission unit that permits access to a URI that is prohibited from being accessed when the restriction portion is selected by the selection unit. An input means for accepting input of a password;
Password determining means for determining whether or not a preset password matches the password input by the input means;
When the password determination unit determines that the preset password and the password input by the input unit match, the access permission unit permits access to the URI for which access is prohibited. Item 4. The electronic device according to Item 3. Transmission / reception means for transmitting / receiving data to / from a terminal device that manages the electronic device;
When the restriction part is selected by the selection unit, the application unit further includes an application unit that transmits an access permission application to the URI that is prohibited from accessing the terminal device,
The electronic device according to claim 3, wherein, when an answer permitting access to the permission application is received from the terminal device by the transmission / reception means, the access permission means permits access to the URI for which access is prohibited. . The portable terminal device according to claim 5, wherein the access restriction information that is data received from the terminal device by the transmission / reception unit is stored in the storage unit. The determination unit refers to the access restriction information stored in the storage unit, and further determines whether or not the document includes a description that allows data to be acquired or transmitted from a URI for which access is prohibited. ,
The electronic device according to claim 1, wherein when the determination unit determines that the description is included in the document, the display control unit performs display control by invalidating the description. The determination unit refers to the access restriction information stored in the storage unit, and further determines whether or not the document includes a description for acquiring data incorporated in the Web page from the URI for which access is prohibited. Judgment,
The electronic device according to claim 1, wherein when the determination unit determines that the description is included in the document, the display restriction unit displays alternative data on the Web page instead of the data. The electronic device according to claim 1, wherein the access restriction information is information related to a URI and a domain for which access is prohibited or a URI and a domain for which access is permitted. Obtaining means for obtaining a document described in a predetermined language from a designated server;
Display means for displaying a web page generated based on the document;
Storage means for storing access restriction information which is information relating to access restriction of the Web page;
Determining means for referring to access restriction information stored in the storage means and determining whether or not the document includes a description for obtaining or transmitting data from a URI for which access is prohibited;
When it is determined that the description is included in the document, the display unit includes a display restriction unit that generates the Web page on which display restriction for invalidating the description is performed and displays the Web page on the display unit. Features electronic equipment.

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