JP4867968B2 - Communication device - Google Patents

Description

  The present invention relates to a communication device.

Various contents are released on the network. There are servers that publish content summary information including content URLs and content titles. An example of the content summary information is feed information (Feed). As the format of the feed information, for example, there are RSS and Atom. Non-Patent Document 1 below discloses software for accessing a URL of a server, obtaining feed information from the server, generating a title of each content, and displaying the title. When this software is installed on the PC, the user can view the title of the content. When the user clicks on the title, the PC activates the browser and accesses the URL of the content corresponding to the title. Thereby, the content is displayed on the PC.
Tomoyuki Ozu, “Displaying RSS-delivered article titles in an electric bulletin board style” Dirty News Reader ”, [Online], May 26, 2004, Impression Corporation, [Search July 29, 2008], Internet, <http://www.forest.impress.co.jp/article/2004/05/26/dirtynewsreader.html>

  The above-described software disclosed in Non-Patent Document 1 is applied to a multi-function device having a printer function or a scanner function, and the content title and the update date and time when the content title is updated are displayed on the display device of the multi-function device. The scrolling display has the following problems. In other words, the multi-function device acquires the feed information from the server at regular intervals (for example, every hour), and updates the title and content of the content included in the display information generated from the acquired feed information. By scrolling and displaying the date and time on the display device, the title of the content to be scrolled and the update date and time are updated to the latest one. Therefore, if the display information is updated to the latest information while scrolling using the display information including the content title and the update date and time, the content title is not updated. On the other hand, the update date / time is the information for display after the update, and there is a problem that inconsistency occurs between the title of the content and the update date / time.

  The present invention has been made to solve the above-described problems, and content summary information is newly acquired when content summary information including at least a content title and information related to the title is being displayed. However, an object of the present invention is to provide a communication device that can prevent inconsistency from occurring in the currently displayed content summary information.

  To achieve this object, the communication device according to claim 1 is capable of accessing a device indicated by network location information of content summary information including at least a content title and information related to the title, Summary information for accessing each of the location information storage means capable of storing a plurality of location information and the device indicated by each network location information stored in the location information storage means, and acquiring the content summary information from each of the devices Acquisition means, sub-storage means for storing each content summary information acquired by the summary information acquisition means, transfer means for transferring each content summary information stored in the sub-storage means, and transfer by the transfer means Summary information storage means for storing each content summary information and its summary information storage means Display means for sequentially switching and displaying each stored content summary information, determination means for determining one content summary information to be displayed on the display means, and one of the determination means determined to be displayed on the display means When the content summary information is displayed on the display means, the latest content summary information is acquired by the summary information acquisition means by accessing the device indicated by the network location information of the one content summary information being displayed. And transfer prohibiting means for prohibiting transfer of the stored latest content summary information to the summary information storing means by the transfer means.

  Note that the network location information is a concept including any information that can specify the location of the content summary information (where the content summary information is acquired). As an example of the network location information, for example, a URL (Uniform Resource Locator) can be cited. The title means a character string that is less than the entire character string of the content and reflects the content.

  The communication device according to claim 2 is the communication device according to claim 1, wherein the transfer prohibiting unit stores the latest content summary information in the summary information storage unit by being transferred by the transfer unit. An update determination unit that determines for each content summary information whether or not each content summary information has been updated to the latest content summary information, and the update determination unit determines that the content summary information has not been updated to the latest content summary information. An update determination means for determining one content summary information to be updated to the latest content summary information from the content summary information, and an apparatus indicated by the network location information of the one content summary information determined by the update determination means And the summary information acquisition means acquires the latest content summary information to An execution unit that performs control to be stored in the storage unit, and an apparatus indicated by the network location information of the latest content summary information when the latest content summary information is stored in the secondary storage unit by the control of the execution unit Unupdated display determination means for determining whether the content summary information that has not been updated and is stored in the summary information storage means previously acquired is displayed on the display means by the determination by the determination means; When it is determined by the determination means that the previously updated content summary information acquired by the non-update display determination means is displayed on the display means, it is stored in the secondary storage means. Further, information transfer prohibition that prohibits the transfer means from transferring the latest content summary information to the summary information storage means And it includes a stage.

  The communication device according to claim 3 is the communication device according to claim 2, wherein the non-updated display determining means determines that the previously updated content summary information acquired before is not displayed on the display means. A transfer permission unit that permits the transfer unit to transfer the latest content summary information stored in the sub storage unit to the summary information storage unit.

  The communication device according to claim 4 is the communication device according to claim 2 or 3, wherein the non-updated content summary information previously acquired by the non-updated display determination unit is displayed according to the determination by the determination unit. An end determination means for determining whether or not the display of the previously acquired content summary information not updated on the display means is ended when it is determined that the information is displayed on the means; The transfer prohibiting unit is configured to store the latest information stored in the secondary storage unit until it is determined by the end determining unit that display of the previously updated content summary information acquired on the display unit has ended. Prohibition maintaining means for maintaining prohibition of transfer of content summary information to the summary information storage means by the transfer means is provided.

  According to the communication device of the first aspect, the transfer prohibiting means displays the displayed one of the content summary information that is determined to be displayed on the display means by the determining means. When the latest content summary information is acquired by the summary information acquisition unit and stored in the secondary storage unit by accessing the device indicated by the network location information of the content summary information, the stored latest content summary information is transferred by the transfer unit. Transfer to the summary information storage means is prohibited. In other words, if the one content summary information determined by the determination unit is displayed on the display unit, the transfer prohibiting unit accesses the device indicated by the network location information of the displayed one content summary information and acquires it. The latest content summary information that has been transferred is prohibited from being transferred to the summary information storage means by the transfer means. Therefore, there is an effect that it is possible to prevent inconsistency from occurring in one content summary information currently displayed. An example of the occurrence of inconsistency in the currently displayed content summary information is that the title of the currently displayed content and the information related to the currently displayed title do not match. Is done.

  According to the communication device according to claim 2, in addition to the effect produced by the communication device according to claim 1, when the latest content summary information is stored in the secondary storage means, the network location information of the latest content summary information When the non-updated display determining means determines that the non-updated content summary information previously acquired from the device indicated by the display means is displayed on the display means by the determining means, the information transfer prohibiting means The latest content summary information stored in the storage means is prohibited from being transferred to the summary information storage means by the transfer means. Therefore, it is possible to prevent inconsistency from occurring in the currently displayed content summary information.

  According to the communication device according to claim 3, in addition to the effect produced by the communication device according to claim 2, when the latest content summary information is stored in the secondary storage means, the network location information of the latest content summary information When the non-updated display determining means determines that the non-updated content summary information previously acquired from the device indicated by the determination means is not displayed on the display means, the transfer permitting means The latest content summary information stored in the means is permitted to be transferred to the summary information storage means by the transfer means. In other words, the transfer permitting unit is configured to transfer the latest content summary information to the transfer unit unless the updated content summary information previously acquired from the device indicated by the network location information of the latest content summary information is displayed on the display unit. Is allowed to be transferred to the summary information storage means. Therefore, there is an effect that the content summary information that is not displayed on the display means can be immediately updated to the latest content summary information.

  According to the communication device of the fourth aspect, in addition to the effect produced by the communication device according to the second or third aspect, when the latest content summary information is stored in the secondary storage means, the latest content summary information If the non-updated display determining means determines that the non-updated content summary information previously acquired from the device indicated by the network location information is displayed on the display means by the determination means, the prohibition maintaining means Until the end of the display is determined by the end determination unit, the transfer prohibition of the latest content summary information to the summary information storage unit is maintained. Therefore, the currently displayed content summary information is updated to the latest content summary information, so that it is possible to reliably prevent inconsistency from occurring in the currently displayed content summary information. .

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram showing an outline of a multi-function device system 2 in an embodiment of the present invention. The multi-function device system 2 includes the multi-function device 10, a plurality of PCs 70 and 71, and a plurality of content providing servers 90 and 91. In FIG. 1, one multi-function device 10, two PCs 70 and 71, and two content providing servers 90 and 91 are illustrated, but these numbers can be changed as appropriate.

  In the multi-function device 10 of the present embodiment, feed information acquired from a site (specifically, a URL (Uniform Resource Locator) indicating the location information of the site) published by the content providing servers 90 and 91 is used. Thus, display information including the content title character string 140 scrolled and displayed on the display panel 50 and the content update date / time information 142 is generated. Therefore, when the feed information is updated and the display information is updated, the content title character string 140 scrolled and displayed on the display panel 50 and the content update date / time information 142 are also updated accordingly.

  Here, according to the multi-function device 10 of the present embodiment, the content title character string 140 and the content update date / time information 142 are scroll-displayed on the display panel 50 using the display information stored in the display information storage area 18f. When the latest feed information is newly acquired from the URL, the display information generated by the feed information acquired last time from the URL from which the latest feed information is acquired is used for scroll display. It is determined whether it is done. If it is determined that the display information generated from the previously acquired feed information is used for scroll display, the feed information is stored in the feed information storage area 18d until the scroll display using the display information is completed. The display information created using the latest developed information is not transferred to the display information storage area 18f (not stored in the display information storage area 18f). Therefore, it is possible to prevent information inconsistency from occurring in the content title character string 140 and the content update date / time information 142 currently being scrolled.

  Note that the occurrence of inconsistency in information between the content title character string 140 and the content update date / time information 142 being scroll-displayed means that the content update date / time information 142 is old although the content title character string 140 is the latest information. Examples are information, and cases where the content title character string 140 is old information even though the content update date / time information 142 is the latest information.

  Here, the feed information in the present embodiment is basic information for generating display information 112 to be described later. The display information 112 is information including site information 120 (see FIG. 5) and updated content information 132 (see FIG. 5) described later. Further, the updated content information 132 includes a content title character string 140 and content update date / time information 142.

  A multi-function device 10 shown in FIG. 1 is a communication device that realizes a printing function, a scanner function, a telephone function, and the like, and is connected to a LAN line 4. The PCs 70 and 71 are control devices that control the printing function and scanner function of the multi-function device 10, and are connected to the LAN line 4. The LAN line 4 is connected to the Internet 8 via a router 6. Each of the content providing servers 90 and 91 is connected to the Internet 8.

  In the present embodiment, the content providing server 90 publishes one site (URL), and the content providing server 91 publishes another one site (URL). Each site contains a plurality of contents. Further, each of the content providing servers 90 and 91 stores feed information (RSS format feed information) that is summary information of a plurality of contents included in its own site. The specific contents of these pieces of information will be described later in detail.

  Next, the internal configuration of the PC 70 will be described. Since the PC 71 has the same internal configuration as the PC 70, the description thereof is omitted. The PC 70 mainly includes a CPU 72, a hard disk 74, a display unit 82, and an operation unit 84. Although not shown in FIG. 1, the PC 70 also has a network interface connected to the LAN line 4.

  The CPU 72 is an arithmetic unit and executes processing according to the basic program 76 and the resident software 78. The processing executed by the CPU 72 will be described in detail later with reference to FIG. The hard disk 74 stores a basic program 76 and resident software 78. The basic program 76 is a program for controlling basic operations of the PC 70. The basic program 76 includes, for example, a browser for downloading and displaying content from a site on the Internet 8.

  The resident software 78 is a program for transmitting a PC activation notification indicating that the PC 70 has been activated to the multi-function device 10 and for operating in accordance with instructions from the multi-function device 10. The PC activation notification will be described in detail later. The resident software 78 is installed in the PC 70 from, for example, a computer readable medium. The resident software 78 may be downloaded from a site on the Internet 8 and installed on the PC 70, for example.

  The hard disk 74 stores a setting file 80. The setting file 80 includes the IP address of the multi-function device 10. The stored contents of the setting file 80 are set by a user, for example. The use of the stored contents of the setting file 80 will be described in detail later.

  The display unit 82 can display various information. The display unit 82 has a display screen larger than the display panel 50 (see FIG. 2) of the multi-function device 10. The operation unit 84 is configured by a keyboard and a mouse. The user can input various instructions and information to the PC 70 by operating the operation unit 84.

  Next, the multi-function device 10 will be described with reference to FIG. FIG. 2 is a block diagram showing an electrical configuration of the multi-function device 10. The multi-function device 10 includes a control unit 12, a display panel 50, a keypad 52, a printing unit 54, a scanning unit 56, a FAX unit 58, a network interface (hereinafter referred to as “network I / F”) 60, and a PSTN interface (hereinafter referred to as “network interface”). , Referred to as “PSTN I / F”) 62 and a speaker 64. The control unit 12 and the units 50 to 64 are connected to each other via a bus line 66. The control unit 12 mainly includes a CPU 14, a ROM 16, a RAM 18, and an NVRAM 20.

  The CPU 14 is an arithmetic device, and executes processing according to the programs 16a to 16c stored in the ROM 16. The processing executed by the CPU 14 will be described in detail later with reference to FIGS. The ROM 16 is a non-writable nonvolatile memory that stores the programs 16a to 16c.

  The basic function program 16 a is a program for controlling basic operations of the multi-function device 10. The basic function program 16a includes, for example, a program for generating display data displayed on the display panel 50. The basic function program 16a includes a program for controlling each of the units 50 to 64 such as the printing unit 54, the scanning unit 56, and the FAX unit 58, for example. The Internet connection program 16 b is a program for connecting to the Internet 8. The feed information utilization program 16c analyzes the feed information acquired from the content providing servers 90 and 92 and stored in a feed information storage area 18d described later (hereinafter referred to as “display information”). 7 and a process for displaying the display information, and further, a process for setting a URL indicating the acquisition destination of the feed information of each content providing server 90, 91 is included. It is a program for executing processing.

  The RAM 18 is a readable / writable volatile memory having the storage areas 18a to 18f. The basic function work area 18a is a storage area for storing various data generated in the course of processing being executed in accordance with the basic function program 16a. The feed information analysis work area 18b is a storage area for storing various data created in the process of executing processing according to the feed information utilization program 16c.

  The temporary storage area 18c is a storage area for storing the latest feed information acquired from each of the content providing servers 90 and 91 in association with a URL indicating the acquisition destination of the feed information. The latest feed information stored in the temporary storage area 18c is expanded into text data by the CPU 14, and then transferred and stored in the feed information storage area 18d for each URL.

  In the feed information storage area 18d, as described above, after the feed information stored in the temporary storage area 18d is expanded into text data, the expanded information (hereinafter referred to as “development information”) is transferred. In addition, it is a storage area for storing the transferred development information for each URL. The CPU 14 creates (updates) display information stored in a display information storage area 18f described later using the latest development information stored in the feed information storage area 18d. The contents stored in the feed information storage area 18d will be described later with reference to FIG.

  When the content title character string 140 and the content update date / time information 142 are scroll-displayed on the display panel 50 using the display information stored in the display information storage area 18f to be described later, the latest feed information is URL In the case of newly acquiring from the first, the CPU 14 first determines whether the display information generated by the feed information acquired last time from the URL from which the latest feed information is acquired is used for scroll display. When it is determined that the display information generated by the previously acquired feed information is used for scroll display, the CPU 14 keeps the feed information storage area until the scroll display using the display information ends. The display information created using the latest development information stored in 18d is not transferred to the display information storage area 18f described later (not stored in the display information storage area 18f). Therefore, it is possible to prevent information inconsistency from occurring in the content title character string 140 and the content update date / time information 142 currently being scrolled.

  The update flag 18e is turned off when the latest feed information is acquired and the display information created using the development information obtained by expanding the latest feed information is transferred and stored in the display information storage area 18f described later. On the other hand, this flag is set to ON when the transfer is incomplete. The update flag 18e is provided according to the number of URLs indicating the acquisition destination of the feed information, specifically, according to the number of URLs that can be stored in a URL storage area 20b described later.

  In the present embodiment, the URL storage area 20b can store n URLs from 0 (zero) to n-1 (where n is an integer equal to or greater than 1), and accordingly, the update flag 18e according to this number. Are provided with n flags of update 0 (zero) flag 18e1 to update n-1 flag 18en-1. The update 0 (zero) flag 18e1 to the update n-1 flag 18en-1 are used as much as the URL is stored in the URL storage area 20b. For example, if two URLs are stored in the URL storage area 20b, the update 0 flag 18e1 and the update 1 flag 18e2 are used, and the other update flags (update 2 flag 18e3 to update n-1 flag 18en-1) are Not used.

  The display information storage area 18f is a storage area for storing display information created using the latest development information stored in the feed information storage area 18d in accordance with the feed information utilization program 16c.

  The NVRAM 20 is a rewritable nonvolatile memory having the storage areas 20a to 20b. The basic function parameter storage area 20a is a storage area for storing various parameters (for example, settings in the print function, settings in the scan function, etc.) used when the CPU 14 executes processing according to the basic function program 16a. The URL storage area 20b is a storage area for storing a URL indicating an acquisition destination of feed information included in each of the content providing servers 90 and 91.

  For example, the user needs to set a URL for receiving a content providing service from each of the content providing servers 90 and 91. This URL setting can be performed on the site setting screen displayed on the display panel 50 when the site setting process described later in FIG. 8 is executed. When the URL indicating the acquisition destination of the feed information of the content providing servers 90 and 91 is set on the site setting screen, the set URL is stored in the URL storage area 20b. The site setting screen will be described later with reference to FIG.

  The URL setting may be set using the PCs 70 and 71 in addition to the site setting screen. For example, when the user sets a URL for receiving the content providing service from the content providing server 90 using the PC 70, the URL indicating the acquisition destination of the feed information of the content providing server 90 is sent from the PC 70 to the multi-function device 10. Sent. Thereby, the URL indicating the acquisition destination of the feed information of the content providing server 90 may be stored in the URL storage area 20b.

  The display panel 50 is a display device that displays various information. The display screen of the display panel 50 is smaller than the display screen of the PCs 70 and 71. The display panel 50 functions as a touch panel. The keypad 52 is composed of a plurality of keys. The user can input various instructions and information to the multi-function device 10 by operating the keypad 52. The printing unit 54 has a printing mechanism such as an ink jet type or a laser type. The scanning unit 56 has a reading mechanism such as a CCD or CIS. The FAX unit 58 executes various operations for executing FAX communication. The network interface 60 is connected to the LAN line 4. The multi-function device 10 can communicate with the PCs 70 and 71 and can access the Internet 8. The PSTN interface 62 is connected to a PSTN (Public Switched Telephony Network) (not shown). The PSTN is used when performing FAX communication or telephone communication. The speaker 64 is a sound emitting device that outputs a ringing sound when an incoming call is made by the telephone function.

  Next, the contents stored in the site setting screen and the URL storage area 20b (see FIG. 2) will be described with reference to FIG. FIG. 3A is a diagram showing a site setting screen displayed on the display panel 50. FIG. 3B shows an example of the contents stored in the URL storage area 20b.

  First, FIG. 3A will be described. As shown in FIG. 3A, the site setting screen has n areas (namely, input fields) for inputting URLs indicating connection destinations for receiving the content providing services from the content providing servers 90 and 91. Input fields 50a1 to 50an). When any one of the input fields 50a1 to 50an is selected and a URL indicating a connection destination is input using the keypad 52, the input URL is displayed in the selected input field. When the OK button 50d is pressed, the URLs input in the input fields 50a1 to 50an are stored in the URL storage area 20b. When the cancel button 50e is pressed, the site setting screen is erased from the display panel 50, and no storage in the URL storage area 20b is performed.

  Next, FIG. 3B will be described. As described above, the URL storage area 20b can store the URL 102 indicating the acquisition source of the feed information of each of the content providing servers 90 and 91. In other words, the URL storage area 20b can store the URL 102 indicating the acquisition source of the feed information of each site. In the example of FIG. 3B, n URLs 102 are stored in the URL storage area 20b. Each URL 102 is assigned an identification number 100. In the present embodiment, the identification number 100 is represented by the symbol “i”.

  Next, the stored contents of the feed information storage area 18d will be described with reference to FIG. FIG. 4 is a diagram showing an example of the contents of the development information stored in the feed information storage area 18d.

  As shown in FIG. 4, the development information stored in the feed information storage area 18d is associated with a code (identification information 100) assigned to each URL 102 stored in the URL storage area 20b. That is, development information is stored in the feed information storage area 18d in association with each URL 102 (that is, a code) stored in the URL storage area 20b. Therefore, the CPU 14 can detect which URL the development information corresponds to. For example, the expansion “1” is associated with the code “1”, and the code “1” indicates that the URL is “http://www.example1.com” (FIG. 3B). )reference). Therefore, the CPU 14 can detect that the information obtained by expanding the feed information acquired from “http://www.example1.com” is the expansion 1 information.

  Next, the stored contents of the display information storage area 18f of the RAM 18 will be described with reference to FIG. FIG. 5 is a diagram showing an example of the contents stored in the display information storage area 18f. The display information storage area 18f can store the display information 112 for each URL stored in the URL storage area 20b. In other words, the display information storage area 18f can store the display information 112 for each site (URL) stored in the URL storage area 20b.

  As described above, the URL storage area 20b stores n (n is an integer of 1 or more) URLs 102 (see FIG. 3). Therefore, n pieces of display information 112 are also stored in the display information storage area 18f. Each display information 112 is given an identification number 110. In the present embodiment, the identification number 110 is represented by the symbol “i”. The identification information 110 and the above-described identification information 100 have the same value.

  Next, the data structure of each display information 112 will be described. The display information 112 includes site information 120. The site information 120 includes a site title character string 122 and feed update date / time information 124. The site title character string 122 is a character string of a site title. The feed update date / time information 124 is information related to the date / time (latest update date / time) when the feed information was updated in the content providing server.

  The display information 112 includes updated content information 132. The number of update content information 132 is equal to the number of content that the site (URL) has. For example, in FIG. 5, the display information 112 corresponding to “i = 0” includes m pieces of update content information 132 (m is an integer equal to or greater than 1). This means that the site corresponding to “i = 0” has m contents. For example, when content related to weather forecast and content related to sports exist in a predetermined site, the display information 112 corresponding to the site has two pieces of updated content information 132. Each update content information 132 is given an identification number 130. In the present embodiment, the identification number 130 is represented by a code “j”.

  Each update content information 132 includes a content title character string 140, content update date / time information 142, a content summary character string 144, and a content URL 146. In the case of the above-described example, the update content information 132 corresponding to the content related to the weather forecast includes the information 140 to 146, and the update content information 132 corresponding to the content related to the sport also includes the information 140 to 146. The content title character string 140 is a character string of the content title. The content update date / time information 142 is information related to the date / time when the content is updated in the content providing server (latest update date / time).

  The content summary character string 144 is a summary of character strings included in the content. In other words, the content summary character string 144 is a character string that is more than the title of the content, less than the entire character string of the content, and is a character string that reflects the contents of the content. The content URL 146 is a content URL. In the present embodiment, the multi-function device 10 scrolls and displays at least the content title character string 140 and the content update date / time information 142 described above on the display panel 50. However, the multi-function device 10 can further display the content summary character string 144 and the content URL 146 on the display panel 50.

  Next, a PC main process executed by the CPU 72 of the PC 70 will be described with reference to FIG. FIG. 6 is a flowchart showing a PC main process executed by the PC 70. This PC main process is started by the resident software 78 when the PC 70 is activated (powered on) and the operation software (OS) is activated, and then the resident software 78 (see FIG. 1) is activated by the OS. Process. Note that the PC main process is also executed in the PC 71, but the process is the same as that of the PC 70, and thus the description thereof is omitted.

  In the PC main process, first, the CPU 72 reads the stored contents of the setting file 80 (see FIG. 1) (S1) and determines whether information is stored in the setting file 80 (S2). In the present embodiment, the IP address of the multi-function device 10 is stored in advance in the setting file 80 by user input (any information that can identify the multi-function device 10 may be used, and a node name or the like is also possible). , Not limited to IP addresses). In this case, the CPU 72 determines that information is stored in the setting file 80 (S2: Yes), and proceeds to the process of S3. On the other hand, if no information is stored in the setting file 80, the CPU 72 determines that no information is stored in the setting file 80 (S2: No), and ends the main process.

  In the process of S3, the CPU 72 transmits a PC activation notification to the multi-function device 10 (S3). The PC activation notification includes the IP address and host name of the PC 70. Thereafter, the CPU 72 opens a reception port having a predetermined port number (S4). Then, the CPU 72 waits until some event occurs (S5). If an event occurs, the process proceeds to S6. In the process of S6, the CPU 72 determines whether or not a URL notification from the multi-function device 10 has been received (S6).

  In the present embodiment, when the content title character string 140 and the content update date / time information 142 are displayed on the display panel 50 of the multi-function device 10, the user touches the display panel 50 and the displayed content is displayed. If it is determined by the CPU 14 of the multi-function device 10 that it has been selected, the multi-function device 10 transmits a URL notification to a PC selected in advance by the user among the PCs that have received the PC activation notification.

  In the process of S6, if the CPU 72 determines that the URL notification from the multi-function device 10 has been received (S6: Yes), the CPU 72 starts the browser program and accesses the received URL (S7). Thereby, the content corresponding to the URL notification from the multi-function device 10 is displayed on the display unit 82 (see FIG. 1) (S7). Therefore, the user can comfortably view the content on the display unit 82 having a display screen larger than that of the display panel 50.

  On the other hand, in the process of S6, if the CPU 72 determines that the URL notification from the multi-function device 10 has not been received (S6: No), is the user instructed to stop the program of the resident software 78? It is determined whether or not (S8).

  For example, the user can input a stop instruction to the PC 70 by performing a predetermined operation on the operation unit 84. In this case, the CPU 72 determines that the user has instructed to stop the program of the resident software 78 (S8: Yes), and ends the PC main process. On the other hand, if the CPU 72 determines that the user is not instructed to stop the program of the resident software 78 (S8: No), the CPU 72 executes processing corresponding to the event (S9), and the next event occurs. (S5).

  Next, processing executed by the CPU 14 of the multi-function device 10 will be described with reference to FIGS. First, a main process executed by the CPU 14 of the multi-function device 10 will be described with reference to FIG. FIG. 7 is a flowchart showing main processing executed by the multi-function device 10. The main process is started when the power of the multi-function device 10 is turned on. The main process is repeatedly executed during the power-on period.

  In the main process, first, the CPU 14 determines whether or not the URL setting for receiving the content providing service from each of the content providing servers 90 and 91 is instructed by the user's operation on the keypad 52 (S21). When URL setting is instructed by the user's operation of the key pad 52, the instruction is stored in a predetermined area of the RAM 18. The CPU 14 determines whether or not the URL setting is instructed in the process of S21 by determining whether or not the above-described instruction is stored in a predetermined area of the RAM 18.

  In the process of S21, if the CPU 14 determines that the URL setting is instructed (S21: Yes), it executes the site setting process (S22). On the other hand, when determining that the URL setting is not instructed (S21: No), the CPU 14 executes a scroll display process (S23). Note that the CPU 14 ends the main process after the process of S22 or S23.

  Next, a site setting process for setting a URL for receiving content providing services from the content providing servers 90 and 91 will be described with reference to FIG. FIG. 8 is a flowchart showing site setting processing executed by the CPU 14 of the multi-function device 10. In the site setting process, first, the CPU 14 displays a site setting screen (see FIG. 3A) on the display panel 50 (S31). When the site setting screen is displayed on the display panel 50, the user can enter the URLs for receiving the content providing services from the content providing servers 90 and 91 in the input fields 50a1 to 50an. The URL indicating the acquisition source of the feed information can be entered using the keypad 52.

  Thereafter, the CPU 14 determines whether or not the OK button 50d is pressed (S32). When determining that the OK button 50d has been pressed (S32: Yes), the CPU 14 stores the URLs input in the input fields 50a1 to 50an in the URL storage area 20b (S33). Thereafter, the site setting process is terminated. On the other hand, when determining that the OK button 50d is not pressed (S32: No), the CPU 14 determines whether the cancel button 50e is pressed (S34). When the CPU 14 determines that the cancel button 50e is not pressed (S34: No), the CPU 14 returns to the process of S32.

  On the other hand, if the CPU 14 determines in the process of S34 that the cancel button 50e has been pressed (S34: Yes), the site setting process ends. When the site setting process is completed, the site setting screen is deleted from the display panel 50.

  Next, a scroll display process for displaying the content title character string 140 and the content update date / time information 142 on the display panel 50 will be described with reference to FIG. FIG. 9 is a flowchart showing a scroll display process executed by the CPU 14 of the multi-function device 10.

  In the scroll display process, first, the CPU 14 refers to the stored contents of the URL storage area 20b (S41). Then, the CPU 14 determines whether or not a URL for acquiring feed information is stored in the URL storage area 20b (S42). If the CPU 14 determines that the URL for acquiring the feed information is not stored in the URL storage area 20b (S42: No), the feed information is not acquired and the content title character string 140 and the content update date / time information 142 are displayed. Since it cannot be displayed on the panel 50, the scroll display process is terminated.

  On the other hand, if the CPU 14 determines in the process of S42 that the URL for acquiring the feed information is stored in the URL storage area 20b (S42: Yes), it determines the URL to be scroll-displayed on the display panel 50 (S43). Specifically, in step S43, the CPU 14 determines the value of the code “i” (see FIG. 5), which is the identification number 110 stored in the display information storage area 18f, and determines the URL for scroll display. is doing. In the present embodiment, the CPU 14 first selects the URL having the minimum identification number 110 (code) stored in the display information storage area 18f, that is, the URL having the code “0” in S43. The URL to be scrolled is determined.

  Then, the CPU 14 sets the scroll variable of the URL determined in the process of S43 to “displaying”, and sets the scroll variables of other URLs to “completed” (S44). A scroll variable is provided for each URL stored in the URL storage area 20b. For a URL for which the scroll variable is set to “displaying”, content included in the display information 112 corresponding to the URL. It shows that the title character string 140 and the content update date / time information 142 are scroll-displayed on the display panel 50. On the other hand, the URL whose scroll variable is set to “complete” indicates that the content title character string 140 and the content update date / time information 142 included in the display information 112 corresponding to the URL are not scroll-displayed. By setting the scroll variable, the CPU 14 can detect which URL the content title character string 140 and content update date / time information 142 scroll-displayed on the display panel 50 belong to. This scroll variable is stored in a predetermined area of the RAM 18.

  After the process of S44, the CPU 14 acquires the updated content information 132 included in the display information 112 corresponding to the URL determined in the process of S43 from the display information storage area 18f (S45). Then, the CPU 14 scrolls and displays the content title character string 140 and the content update date / time information 142 on the display panel 50 using the acquired updated content information 132 (S46). In the process of S45, the CPU 14 obtains the updated content information 132 in which the code “j” (see FIG. 5) that is the identification number 130 is “0” to “m−1” from the display information storage area 18f. . Then, in the process of S46, the CPU 14 sequentially starts with the content title character string 140 and the content update date / time of the code “m−1” from the content title character string 140 and the content update date / time information 142 of the code “j” of “0”. Up to the information 142, the display panel 50 is sequentially scroll-displayed.

  After the process of S46, the CPU 14 sets the scroll variable of the URL for which the scroll display on the display panel 50 has ended to “completed” (S47). Thereafter, the CPU 14 determines whether or not there is a URL whose scroll variable has not yet been switched to “displaying” among URLs stored in the URL storage area 20b, that is, a URL that has not been scroll-displayed. (S48). Specifically, in the process of S48, the CPU 14 performs scroll display depending on whether or not the value of the code “i” (see FIG. 5) determined in the process of S43 has reached the maximum value n−1. It is determined whether there is a URL that has not been visited. That is, in the process of S48, if the code “i” determined in the process of S43 is not n−1, the scroll variable is still “display” among the URLs stored in the URL storage area 20b. It is determined that there is a URL that has not been switched to “medium”. On the other hand, in the process of S48, if the code “i” determined in the process of S43 is n−1, all the scroll variables of the URL stored in the URL storage area 20b are “displaying”. Is determined to have been switched to.

  In the process of S48, when the CPU 14 determines that there is a URL whose scroll variable has not yet been switched to “displaying” among the URLs stored in the URL storage area 20b (S48: Yes), S43. Returning to the process, the URL to be scrolled is determined to be another URL stored in the URL storage area 20b (S43). In the process of S43, the CPU 14 adds 1 to the value of the code “i” (see FIG. 5), and determines the URL to be scroll-displayed as another URL.

  On the other hand, in the process of S48, when the CPU 14 determines that all the scroll variables of the URL stored in the URL storage area 20b have been switched to “displaying” (S48: No), this scroll display process is performed. finish.

  By the scroll display described above, the content title character string 140 and the content update date / time information 142 can be scroll-displayed on the display panel 50 for each URL.

  Here, with reference to FIG. 11, the scroll display of the display panel 50 realized by executing the processing of S46 by the CPU 14 will be described. FIG. 11 is a diagram showing an example of scroll display on the display panel 50.

  When the process of S46 described above is executed by the CPU 14, the content title character string 140 and the content update date / time information 142 are scroll-displayed on the display panel 50 as shown in FIG. In this embodiment, the scroll display is a display in which the content title character string 140 and the content update date / time information 142 displayed in one column move from the right end to the left end of the display panel 50.

  As described above, the content title character string 140 and the content update date / time information 142 that are scroll-displayed are displayed in order starting from “0”, with the code “j” being the identification number 130 stored in the display information storage area 18f for each URL. , The display is scrolled to “m−1”. When all content title character strings 140 and content update date / time information 142 of one URL are scroll-displayed, all content title character strings 140 and content update date / time information 142 of the next URL are scroll-displayed. For example, if what was scrolled last time is the content title character string 140 and the content update date / time information 142 of the URL corresponding to the code “j = 0”, the next scroll displayed is the code “ The content title character string 140 and the content update date / time information 142 of the URL corresponding to “j = 1” are obtained.

  As shown in FIG. 11, in addition to the content title character string 140 and the content update date / time information 142, a button 160 is displayed on the display panel 50. By operating this button 160, the user can input a function execution instruction to the multi-function device 10. When the function execution is instructed, the multi-function device 10 displays information on the function being executed on the display panel 50 (for example, if the function being executed is a printing function, the number of printed sheets).

  Next, referring to FIG. 10, by updating the display information stored in the display information storage area 18f, the content title character string 140 scrolled and displayed on the display panel 50 and the content update date / time information 142 are updated. Processing will be described. FIG. 11 is a flowchart showing an update process executed by the CPU 14 of the multi-function device 10.

  This update process is started when the power of the multi-function device 10 is turned on. This update process is a timer interrupt process that is repeatedly executed periodically (for example, every hour) during the power-on period. Thus, since the update process is periodically executed even if the scroll display process (S23) is executed in the main process, the content title character string 140 and the content update date / time information 142 are displayed on the display panel 50. Even in the middle, the latest feed information is acquired. However, in the update process, even if the scroll display process (S23) is executed in the main process, the content title character string 140 and the content update date / time information 142 that are being displayed have no information. The processing configuration prevents the occurrence of matching.

  In the update process, first, the CPU 14 refers to the stored contents of the URL storage area 20b (S51). Then, the CPU 14 determines whether or not a URL for acquiring feed information is stored in the URL storage area 20b (S52). If the CPU 14 determines that the URL for acquiring the feed information is not stored in the URL storage area 20b (S52: No), it cannot acquire and update the feed information, and thus ends this update process.

  On the other hand, if the CPU 14 determines in the process of S52 that the URL for acquiring the feed information is stored in the URL storage area 20b (S52: Yes), each update corresponding to each URL stored in the URL storage area 20b. All the flags 18e (18e1 to 18en-1) are turned on (S53). Then, the CPU 14 specifies the URL in which the content title character string 140 and the content update date / time information 142 are scroll-displayed on the display panel 50 by the scroll display variable (S54).

  By the processing of S54, the CPU 14 can specify the URL being scroll-displayed, and can specify the display information 112 including the content title character string 140 and the content update date / time information 142 being scroll-displayed. Thus, in the process of S54, the CPU 14 specifies the display information 112 including the content title character string 140 and the content update date / time information 142 that are scroll-displayed by specifying the URL.

  Thereafter, the CPU 14 refers to the identification result in S54 and the state of the update flag 18e (18e1 to 18en-1), and the scroll flag is not being displayed among the URLs for which the update flag 18e (18e1 to 18en-1) is on. It is determined whether there is a thing (S55). If the CPU 14 determines that there is no URL that is not being scroll-displayed among the URLs for which the update flag 18e (18e1-18en-1) is on (S55: No), the update flag 18e is on and the display information Although 112 is not updated, it is determined that the content title character string 140 and the content update date / time information 142 included in the unupdated display information 112 are being scroll-displayed on the display panel 50, and the URL is scroll-displayed. It is determined whether or not (S57).

  In step S57, the CPU 14 determines that the update flag 18e is on and the display information 112 is not updated, but the content title character string 140 and the content update date / time information 142 included in the display information 112 are displayed on the display panel 50. If it is determined that the scroll display is still in progress (S57: No), the process of S57 is repeated until the scroll display is completed. If the CPU 14 determines that the scroll display has ended (S57: Yes), the process proceeds to S56.

  On the other hand, in the process of S55, if the CPU 14 determines that there is a URL that is not being scrolled among the URLs for which the update flag 18e (18e1-18en-1) is on (S55: Yes), the update flag 18e. Is turned on, that is, the display information 112 has not been updated, and the content title character string 140 and the content update date / time information 142 included in the display information 112 are not used for scroll display. The URL for updating the display information 112 is determined from the URL determined to be (S56). In the process of S56, the CPU 14 determines the value of the code “i” (see FIG. 5), which is the identification number 110 stored in the display information storage area 18f, so that the URL for updating the display information 112 is determined. Has been decided.

  As described above, in the process of S55, the CPU 14 determines that the update flag 18e is on and the display information 112 is not updated, but the content title character string 140 and the content update date / time included in the display information 112 that has not been updated. If it is determined that the information 142 is being scroll-displayed on the display panel 50, the process of S56 is not executed, that is, the feed information is not acquired until it is determined in S57 that the scroll display has ended. Therefore, the update of the display information 112 including the content title character string 140 being scrolled and the content update date / time information 142 can be prevented in advance by not acquiring the feed information.

  In the process of S58, the CPU 14 specifies the URL corresponding to the code determined in the process of S56 from the URL storage area 20b, and connects to the specified URL via the network I / F 60 to obtain the latest feed information. After that, the latest feed information is stored in association with the URL connected to the temporary storage area 18c (S58).

  Then, the CPU 14 expands and transfers the latest feed information acquired from the URL corresponding to the code determined in the process of S56 from the temporary storage area 18c to the feed information storage area 18d, and transfers the transferred expansion information. Corresponding to the URL, it is stored in the feed information storage area 18d (S59).

  After the process of S59, the CPU 14 analyzes the development information stored in the feed information storage area 18d and creates display information 112 (S60). Here, since the expansion information is information obtained by expanding the feed information into text data, it includes the site information 120 and the updated content information 132 shown in FIG. Therefore, the CPU 14 can create the display information 112 shown in FIG. 5 by analyzing the development information.

  After the process of S60, the CPU 14 includes the content title character string 140 included in the display information 112 generated from the feed information (unupdated feed information) previously acquired from the URL corresponding to the code determined in the process of S56, and It is determined from the scroll variable whether the content update date / time information 142 is being scrolled (S61). When the CPU 14 determines that the scroll display is being performed (S61: Yes), the display information 112 generated by the feed information (unupdated feed information) acquired last time from the URL corresponding to the code determined in the process of S56. It is determined that the content title character string 140 and the content update date / time information 142 included in the screen are scroll-displayed (the display information 112 is being used), and created using the development information stored in the feed information storage area 18d The display information is not transferred to the display information storage area 18f, and it is determined whether or not the scroll display has ended (S62). Thereafter, when the CPU 14 determines that the scroll display is not finished (S62: No), the CPU 14 repeatedly executes the process of S62 until the scroll display is finished. If the CPU 14 determines that the scroll display has ended (S62: Yes), the process proceeds to S63.

  On the other hand, in the process of S61, the CPU 14 includes the content title character string included in the display information 112 generated from the feed information (unupdated feed information) acquired last time from the URL corresponding to the code determined in the process of S56. 140 and the content update date and time information 142 are determined not to be in scroll display (S61: No), the display information created using the development information stored in the feed information storage area 18d is transferred to the display information storage area 18f. Then, the storage contents of the display information storage area 18f are updated (S63). For example, when the display information 112 of the zeroth site is created in the process of S60, the CPU 14 clears the old display information 112 associated with the code “i = 0” and sets it to the code “i = 0”. The new display information 112 is stored in association with the processing in S63.

  As described above, in the process of S61, the CPU 14 includes the content title included in the display information 112 generated from the feed information (unupdated feed information) previously acquired from the URL corresponding to the code determined in the process of S56. If it is determined that the character string 140 and the content update date / time information 142 are being scroll-displayed, the process does not proceed to S63 until it is determined in S62 that the scroll display has ended, that is, feed information storage. Display information created using the development information stored in the area 18d is not transferred to the display information storage area 18f. Therefore, the current scroll display is performed by updating the non-updated display information including the content title character string 140 and the content update date / time information 142 currently scrolled to the display information generated by the newly acquired feed information. It is possible to prevent inconsistency of information in the content title character string 140 and the content update date / time information 142 therein.

  In addition, the CPU 14 in the process of S61, the content title character string included in the display information 112 generated from the feed information (unupdated feed information) previously acquired from the URL corresponding to the code determined in the process of S56. If it is determined that the content update date / time information 140 and the content update date / time information 142 are not being scroll-displayed, the process of S63 is immediately executed, and the display information created using the development information stored in the feed information storage area 18d 18f. Therefore, when the non-updated display information that generated the content title character string 140 and the content update date / time information 142 is not used for scroll display, update to the display information generated from the newly acquired feed information is performed. Can be done instantly.

  After the processing of S63, the CPU 14 turns off the update flag 18e (any one of 18e1 to 18en-1) corresponding to the updated URL (S64). Then, the CPU 14 determines that all the update flags 18e (18e1 to 18en-1) set to ON in the process of S53 are turned off, that is, the latest feed information from all the URLs stored in the URL storage area 20b. Is obtained, and it is determined whether or not the update of the display information 112 stored in the display information storage area 18f is completed by the feed information (S65).

  The CPU 14 determines that the update flags 18e (18e1 to 18en-1) set to ON in S53 are not all OFF, that is, the latest feed information is obtained from all URLs stored in the URL storage area 20b. If it is determined that it has not been acquired (update of the display information 112 stored in the display information storage area 18f has not been completed) (S65: No), the process proceeds to S54. On the other hand, if the CPU 14 determines that all of the update flags 18e (18e1 to 18en-1) set to ON in the process of S53 are OFF (S65: Yes), all the URLs stored in the URL storage area 20b. The latest feed information is acquired from this, and it is determined that the update of the display information 112 stored in the display information storage area 18f is completed by the feed information, and this update display processing is terminated.

  As described above, according to the multi-function device 10 of the present embodiment, the content title character string 140 and the content update date / time information 142 are scroll-displayed on the display panel 50 using the display information stored in the display information storage area 18f. When the latest feed information is newly acquired from the URL at the time, the display information generated by the feed information acquired last time from the URL from which the latest feed information is acquired is displayed in the scroll display. Determine if it is being used. If it is determined that the display information generated from the previously acquired feed information is used for scroll display, the feed information is stored in the feed information storage area 18d until the scroll display using the display information is completed. The display information created using the latest developed information is not transferred to the display information storage area 18f (not stored in the display information storage area 18f). Therefore, it is possible to prevent information inconsistency from occurring in the content title character string 140 and the content update date / time information 142 currently being scrolled.

  Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be easily made without departing from the spirit of the present invention. Can be inferred.

  In the multi-function device 10 of this embodiment, the content title character string 140 and the content update date / time information 142 are scroll-displayed in one line on the display panel 50 by executing the scroll display process (see FIG. 11). It is not something that can be done. That is, when the content title character string 140 and the content update date / time information 142 are scroll-displayed, when the user touches the content title character string 140 or the content update date / time information 142 displayed on the display panel 50, All the content title character strings 140 and the content update date / time information 142 provided from the URL from which the content title character string 140 and the content update date / time information 142 are obtained are displayed in a list format on a plurality of lines, and the site title character string 122 is displayed. May be fixedly displayed.

  Specifically, the configuration described above may be configured as follows. That is, when the user touches the content title character string 140 or the content update date / time information 142 displayed on the display panel 50, the CPU 14 sets the URL as the acquisition destination of the touched content title character string 140 or the content update date / time information 142. All corresponding update content information 132 and one site title character string 122 corresponding to the URL are acquired from the display information storage area 18f. Then, the CPU 14 may create the content title character string 140 and the content update date / time information 142 as list data from all the acquired updated content information 132 and display it on the display panel 50 together with one site title character string 122. .

  Here, with reference to FIG. 12, the display of the list format realized by the above-described configuration will be described. FIG. 12 is a diagram showing an example when display in the list format realized by the above-described configuration is performed on the display panel 50. With the configuration described above, the list 170 is displayed on the display panel 50. The list 170 includes, for each of a plurality of contents (for example, m contents stored in the display information storage area 18f), a content title character string 140 of the content and content update date / time information 142 of the content. . As shown in FIG. 12, in the list 170, content title character strings “Sport...” And content update date / time information “14:32” are displayed for sports-related content. Similarly, the list 170 includes a content title character string “Policics...” And content update date / time information “14:12”, a content title character string “Weather Tokyo Cloud...”, And content update date / time information “14: 03 ”, content title character string“ Economy ... ”and content update date / time information“ 14:00 ”are displayed. In the example shown in FIG. 12, the site title character string 122 is also fixedly displayed at the upper left portion of the screen. If the return button 174 is pressed, the display returns to the scroll display shown in FIG.

  Thus, by displaying the list 170 on the display panel 50, it is possible to display a list for each of a plurality of contents. Therefore, the user can confirm a plurality of contents acquired from the URL in a short time.

  In the present embodiment, the target for displaying the title of each content is the multi-function device 10, but the present invention is not limited to this. In other words, an object on which the display panel 50 can be mounted, such as a scanner device, a printer device, or a telephone, may be used as a target for displaying the title of each content. In the case of this configuration, the title of each content can be displayed on the display panel 50 provided in the scanner device, the printer device, or the telephone.

  Further, in the image forming system 1 of the present embodiment, the multi-function device 10 and the PCs 70 and 71 are connected to each other via a cable (wired), but this is not a limitation. That is, a wireless communication interface may be provided in each of the multi-function device 10 and the PCs 70 and 71, and the multi-function device 10 and the PCs 70 and 71 may be electrically connected by wireless communication using the wireless communication interface.

  In the present embodiment, each of the content providing servers 90 and 91 stores both the content and the feed information. However, the present invention is not limited to this, and stores the server and the feed information for storing the content. The server for doing may be comprised separately.

  In the present embodiment, the multi-function device 10 does not have a browser program. However, the present invention is not limited to this, and the multi-function device 10 may have a browser program. In the case of this configuration, the multi-function device 10 can download the content and display it on the display panel 50.

It is the figure which showed the outline of the multi-function device system in one Embodiment of this invention. It is a block diagram which shows the electric constitution of a multi-function device. (A) is the figure which showed the site setting screen displayed on a display panel, (b) is the figure which showed an example of the memory content of URL storage area. It is the figure which showed an example of the content of the expansion | deployment information memorize | stored in the feed information storage area. It is the figure which showed an example of the memory content of a display information storage area. It is the flowchart which showed PC main processing performed by PC. 6 is a flowchart illustrating main processing executed by the multi-function device. 5 is a flowchart showing site setting processing executed by the multi-function device. 5 is a flowchart showing scroll display processing executed by the multi-function device. 6 is a flowchart showing update processing executed by the multi-function device. It is the figure which showed an example of the scroll display of a display panel. It is the figure which showed an example at the time of performing the display of a list format on a display panel.

Explanation of symbols

10 Multi-function device (an example of a communication device)
16b Internet connection program (an example of summary information acquisition means)
18d Feed information storage area (an example of secondary storage means)
18f Display information storage area (an example of summary information storage means)
20b URL storage area (an example of position information storage means)
50 Display panel (an example of display means)
S43 Scroll display process (an example of determination means)
S55 Data update processing (an example of update determination means)
S56 Data update processing (an example of update determination means)
S58 Data update processing (an example of execution means)
S61 Data update processing (an example of non-update display determination means)
S61: Yes Data update processing (an example of part of information transfer prohibiting means, an example of prohibition maintaining means)
S61: No data update processing (an example of transfer permission means)
S62 Data update processing (an example of a part of information transfer prohibiting means, an example of an end judging means)
S63 Data update processing (an example of transfer means)
Data update processing (an example of transfer prohibition means)

Claims (4)

A communication device accessible to a device indicated by network location information of content summary information including at least a content title and information related to the title,
Position information storage means capable of storing a plurality of network position information;
Summary information acquisition means for accessing each of the devices indicated by each network location information stored in the location information storage means and acquiring the content summary information from each of the devices,
Sub-storage means for storing each content summary information acquired by the summary information acquisition means;
Transfer means for transferring each content summary information stored in the secondary storage means;
Summary information storage means for storing each content summary information transferred by the transfer means;
Display means for sequentially switching and displaying each content summary information stored in the summary information storage means;
Determining means for determining one content summary information to be displayed on the display means;
When one content summary information determined to be displayed on the display means by the determining means is displayed on the display means, an apparatus indicated by the network location information of the displayed one content summary information is accessed. When the latest content summary information is acquired by the summary information acquisition means and stored in the secondary storage means, the stored latest content summary information is transferred to the summary information storage means by the transfer means. And a transfer prohibiting means for prohibiting the communication. The transfer prohibiting means includes
Whether or not each content summary information stored in the summary information storage means is updated to the latest content summary information by transferring the latest content summary information by the transfer means for each content summary information. Update determination means for determining;
Update determining means for determining one content summary information to be updated to the latest content summary information from the content summary information determined not to be updated to the latest content summary information by the update determination means;
Control that causes access to the device indicated by the network location information of the one content summary information determined by the update determination means, causes the summary information acquisition means to acquire the latest content summary information, and stores it in the secondary storage means Execution means for performing
When the latest content summary information is stored in the secondary storage means by the control of the execution means, the summary information storage means previously obtained from the device indicated by the network location information of the latest content summary information Unupdated display determination means for determining whether the stored content summary information not updated is displayed on the display means by the determination by the determination means;
When it is determined by the determination means that the previously updated content summary information acquired by the non-update display determination means is displayed on the display means, it is stored in the secondary storage means. 2. The communication apparatus according to claim 1, further comprising information transfer prohibiting means for prohibiting transfer of the latest content summary information to the summary information storage means by the transfer means.   If it is determined by the unupdated display determining means that the previously acquired content summary information that has not been updated is not displayed on the display means, the latest content summary stored in the secondary storage means 3. The communication apparatus according to claim 2, further comprising a transfer permission unit that permits information to be transferred to the summary information storage unit by the transfer unit. When it is determined by the determination means that the previously updated content summary information acquired by the unupdated display determination means is displayed on the display means, the previously acquired update information is updated. An end determination unit that determines whether or not display of the content summary information that has not been displayed on the display unit has ended,
The information transfer prohibiting means stores the information stored in the secondary storage means until it is determined by the end determining means that display of the previously acquired content summary information that has not been updated on the display means has ended. 4. The communication apparatus according to claim 2, further comprising prohibition maintaining means for maintaining prohibition of transfer of the latest content summary information to the summary information storage means by the transfer means.

Images