JP5042617B2 - Portable information terminal - Google Patents

Description

  The present invention relates to a portable information terminal equipped with a document browsing application program for browsing a document acquired by communication from a computer network.

A document display application program (hereinafter simply referred to as “Web: World Wide Browser”) that displays documents acquired by communication from a computer network downloads HTML (Hyper Text Mark-up Language) files, image files, music files, etc. from the Internet. The software analyzes the layout, displays it on the screen, and plays it back.
In recent years, third-generation portable information terminals that support multitasking that simultaneously process a plurality of functions, such as browsing with a browser while listening to music and creating an e-mail in the meantime, have appeared.

In addition, as described above, when a plurality of application software programs are activated and processed simultaneously in parallel, an icon is assigned to each task (or application program) to facilitate display switching to each application software, and the task being activated There has also been proposed a technique for displaying an icon provided in correspondence with the task in order to indicate the existence of the task (see, for example, Patent Document 1).
JP 2003-162355 A

It is necessary to mount a CPU with high processing capability in order to be able to grasp the operation of the application program that is being activated, as in the technique disclosed in Patent Document 1, corresponding to the multitask described above. It is disadvantageous in terms of cost.
On the other hand, the browser has a function similar to a “bookmark” of a book that records the address (URL: Uniform Resource Locator) of a website that is visited many times. A simple bookmark registration function is known. Depending on the browser, it may be called “hot list” or “favorite”, and it is a useful function because it saves the trouble of following the link where the URL is input.

  The present invention has been made in order to solve the above-described problems, and realizes pseudo multitasking even with a CPU having a high processing capacity, and can grasp the operation of a running application program, particularly a browser. The purpose is to provide a terminal.

  In order to solve the above-described problem, a portable information terminal according to a first aspect of the present invention includes a display unit that displays a document, a storage unit that stores information, a communication unit that can be connected to a computer network, and the communication A control unit capable of executing, interrupting, and terminating an application program including a document display application program that displays a document acquired by the unit, and the control unit updates the document displayed on the display unit every time the document is updated. When storing the document display history in the storage unit and suspending the execution of the document display application program, the acquisition unit information regarding the document being displayed is stored in the storage unit separately from the display history, and the suspended Display interrupt display information indicating that display of a document by the document display application program is interrupted on the display unit; When the serial interruption display information is resumed is selected is instructed, and acquires the document again by the communication unit and to control so as to be displayed on the display unit based on the acquired destination information.

  Further, in the portable information terminal of the present invention, the control unit interrupts the document display application program and displays the acquisition source information regarding the previously displayed document when displaying a new document on the display unit. You may comprise so that it may memorize | store in a memory | storage part and after the said document display application program is complete | finished, the said document display application program may be started again so that the said new document may be displayed.

  Moreover, the portable information terminal of this invention WHEREIN: The said control part may be comprised so that two or more said interruption display information can be displayed on the said display part.

  A portable information terminal according to a second aspect of the present invention displays a display unit that displays a document, a storage unit that stores information, a communication unit that can be connected to a computer network, and a document acquired by the communication unit. A control unit capable of executing, interrupting, and ending an application program including a document display application program to be executed, and each time the control unit updates a document to be displayed on the display unit, the storage unit stores a display history of the document. The document display application program is interrupted in a state where the first document is displayed and the second document is requested to be displayed by the document display application program while another application program is being executed. And storing the acquisition destination information of the first document in the storage unit separately from the display history, It controls to display the second document by the application program.

  In the portable information terminal of the present invention, when the control unit displays a standby section after displaying the second document on the display unit, the display of the first document by the document display application program is performed. May be configured to display interruption display information indicating that is interrupted.

  In the portable information terminal of the present invention, when the control unit displays a standby screen on the display unit after finishing displaying the second document, display of the document by the document display application program is interrupted. You may comprise so that the interruption display information which shows being in the middle may be displayed about each of the said 1st document and the said 2nd document.

  Further, in the portable information terminal of the present invention, the acquisition destination information of the second document is linked to a part of information handled by the other application program, and the control unit includes the other application program. It may be configured to control to start the document display application program by interrupting the other application program when an instruction to obtain cooperation of the second document is issued during execution.

  Further, in the portable information terminal of the present invention, the control unit corresponds to the selected interruption display information when the interruption display information is selected and restarted and the document display application program is executed to display the document again. The communication unit may be configured to acquire a document based on acquisition destination information.

  In the portable information terminal of the present invention, the control unit corresponds to the selected interruption display information when the interruption display information is selected and restarted and the document display application program is executed to display the document again. When there is no acquisition destination information to be obtained, the document may be displayed based on the display history.

  According to the present invention, it is possible to provide a portable information terminal that realizes pseudo multitasking even with a CPU having no high processing capability and is able to grasp the operation of a running application program, particularly a browser.

  Hereinafter, the configuration and operation of the portable information terminal according to the embodiment of the present invention will be described in detail. Hereinafter, a function switching UI (User Interface) specification of a cellular phone exemplified as a portable information terminal will be described with reference to FIG. This will be briefly described with reference to the screen transition diagram shown in FIG.

  First, as shown in the screen transition diagram of FIG. 1, the application program A (hereinafter referred to simply as an application) is started to interrupt the execution of the application A (not ending, holding the parameters to be used). In this state, an interruption icon for application A is displayed on the standby screen. Next, when the application B is activated and the execution of the application B is interrupted, an interruption icon of the application B is additionally displayed on the standby screen.

  Specifically, the A or B application is activated by using the standby screen (a) or (d) to transition to the A or B application activation screen (b) or (e), and the A or B application is depressed by pressing the end key. The execution of the A or B application can be interrupted via the B application end confirmation screen (c) or (f). At this time, the interrupted A or B application is displayed as a suspended icon on the standby screen (d) or (g). Then, when the cursor is placed on the suspended icon displayed on the standby screen, the name of the application is displayed. When the icon is selected and determined, execution of the application can be resumed from the interrupted scene.

On the other hand, when the B application (for example, mailer) is activated in a state where the A application (browser) is interrupted, the B application activation screen (e) is displayed. Here, if the URL is described in the mail displayed in the B application, and this URL is selected by the user, and the communication connection to this URL is determined, the application to the A application as a browser is determined. Cooperation occurs. However, the A application (browser application) has already been interrupted, and the A application cannot be newly activated based on the cooperation. Therefore, since it is necessary to once terminate the A application, a screen (h) for confirming the termination permission of the suspended A application is displayed. When the end permission is instructed by the user, the suspended A app is terminated for a while, and the A app is newly displayed based on the cooperation from the mail (i).
After that, when both the B app and the A app that was activated in cooperation with the B app are terminated and the standby screen is returned, the A app that was suspended before the collaboration is already terminated, so it is suspended. The icon is not displayed. Therefore, the user cannot confirm that the A application that was activated before the B application was activated. In other words, when it takes a long time to execute the B application or the A application that is activated in cooperation with the B application, the presence of the previously interrupted application may be forgotten. It's hard to say that the user knows.

  This means that other applications can interrupt multiple executions and save the operating state, but the browser can save multiple operating states. Means no. This is due to the fact that a CPU mounted on a small device such as a mobile phone cannot execute multitasking due to performance limitations.

  In contrast, an improved function switching UI will be described below. In other words, according to the improved function switching UI, as shown in the screen transition diagram in FIG. 2, when there is a suspended web application and it is linked to another web page from another application, the suspended function is interrupted. By automatically registering the Web page with the simple bookmark, even if the Web application started later is interrupted, the suspended icons of the two Web applications are displayed on the standby screen.

Specifically, first, the web application A is activated using the standby screen (a), thereby transitioning to the activation screen (b) of the We application A and displaying the screen of the application A. Thereafter, when the end key is pressed, the execution of the Web application A is interrupted via the Web application A end confirmation screen (c). At this time, the suspended icon of the suspended web application A is displayed on the standby screen (d). Next, the mail is opened using the application start screen (e), and when the web application B is linked to the mail, when the URL is selected, the URL of the web page displayed on the web application A is saved. Then, the web application A is terminated and a start screen for the web application B is newly activated (f).
Thereafter, when an operation for terminating the Web application B is performed by pressing the end key, a confirmation message such as “Do you want to terminate the suspended application A?” Is displayed on the termination confirmation screen (g). Here, when the interruption is selected, in addition to the previously interrupted Web application A, the interruption icon of Web application B is additionally displayed on the interruption standby screen (h).

  Subsequently, when the cursor is placed on the suspended icon of the suspended Web application A, the name based on the saved URL or page name or the name of the application is displayed. When the icon is selected, the page is reacquired using the saved URL, and the web application A is activated (i). That is, the execution of the application can be resumed from the interrupted scene. After that, when an operation for ending occurs, the Web application B is not ended even if it is ended through the end confirmation screen (j) of the Web application A and returned to the standby screen (k). Remains displayed.

  That is, the improved function switching UI described above allows the suspended Web page to be easily resumed by retaining the URL of the displayed page and its page name in the manner of registering in a simple bookmark. . Since the simple bookmark registration is a function similar to the favorite that the browser has as a standard, if the browser activation instruction is specified after specifying the URL, the operation is accompanied by the URL connection at the time of restart. Use functions. Therefore, it is possible to avoid that the interrupted web page cannot be viewed immediately despite the state in which the other web page is not activated. It is preferable to automatically register a simple bookmark for the web page in the middle. Or you may make a user select by setting.

  FIG. 3 is a block diagram showing an internal configuration of the portable information terminal according to the embodiment of the present invention. Here, a mobile phone 10 is illustrated as a portable information terminal.

  As shown in FIG. 3, the mobile phone 10 includes a communication unit 11, a control unit 12, a storage unit 13, an audio processing unit 14, a speaker 15 (SP), a microphone (hereinafter referred to as a microphone) 16 (MIC). ), A display unit 17, and an operation unit 18.

  The communication unit 11 transmits and receives radio signals to and from the base station via a channel assigned by any one of base stations (not shown). Here, it connects to an external computer network (Internet), acquires a Web page by communication, and delivers it to the control unit 12.

Each time the control unit 12 updates the document to be displayed on the display unit 17, the control unit 12 stores the display history of the document in the storage unit 13, and displays acquisition destination information regarding the document being displayed when the execution of the document display application is interrupted. While being stored in the storage unit 13 separately from the history, the display unit 17 displays the interrupt display information indicating that the display of the document by the interrupted document display application is interrupted, and the interrupt display information is selected and resumed. When instructed, the communication unit 11 has a function of controlling to acquire the document again and display it on the display unit 17 based on the acquisition destination information.
Specifically, when the control unit 12 interrupts the execution of the web application and displays a new document on the display unit, the old document registers the simple bookmark as the interruption information, and once ends the execution of the browser, Control to reconnect to the Web and display a new document. Note that the control unit 12 displays a plurality of pieces of information indicating that a suspended document exists on the display unit.

The control unit 12 also stores the display history of the document in the storage unit 13 every time the document to be displayed on the display unit 17 is updated, and the document display application is interrupted while the first document is displayed. When the second document is requested to be displayed by the document display application while the application is being executed, the first document acquisition destination information is stored in the storage unit 13 separately from the display history, and then the document display application is stored. Has a function of controlling to display the second document.
Specifically, when the control unit 12 displays the Web page B on the display unit 17 and then returns to the standby screen, the control unit 12 displays an icon indicating that the interrupted Web page A exists. When the display of the Web page B is interrupted and the screen returns to the standby screen, it is displayed on each icon display unit 17 indicating that the interrupted Web page A and Web page B exist. In addition, when called from a mailer as another application, if the browser is suspended in the background, the control unit 12 registers the web page B being executed as a simple bookmark, and the web page B is suspended. An icon indicating that is is generated. Also, when resuming a suspended web page, the web page is reconnected based on the corresponding suspension information registered in the simple bookmark. When resuming a suspended web page, the corresponding web page is displayed using the suspension information stored in the cache only when the web page is the latest web page.

  The storage unit 13 stores various data used for processing in the control unit 12. For example, a program executed by the control unit 12 (a plurality of applications including a browser), an address book for managing personal information such as a telephone number or an e-mail address of a communication partner, a sound file for playing a ring tone or an alarm sound, It holds an image file for a standby screen, various setting data, temporary data used in the process of the program, and the like. Particularly relevant to the present invention, the simple bookmark registration list 131, the cache area 132, and the system save area 133 are allocated and stored.

The simple bookmark registration list 131 includes information fields such as a Web page name, URL, and update time, as shown in FIG. 4 as an example of the data structure. Here, when there is a suspended web application, when a link is made from another application to another web page, the URL related to the web page of the suspended web application is stored. The cache area 132 stores a copy of information related to the rendering of the displayed web page as a display history, and the system save area 133 is created immediately before the suspended application is interrupted each time the execution of the application is interrupted. In-process data such as middle mail input data and system information for return including application type are saved and stored for return.
The storage unit 13 is configured by, for example, a non-volatile storage device (non-volatile semiconductor memory, hard disk device, optical disk device, etc.), a randomly accessible storage device (eg, SRAM, DRAM), or the like.

The audio processing unit 14 processes an audio signal output from the speaker 15 and an audio signal input from the microphone 16.
That is, the audio processing unit 14 amplifies the audio input from the microphone 16, performs analog / digital conversion, further performs signal processing such as encoding, converts it into digital audio data, and outputs the digital audio data to the control unit 12. .
In addition, the audio processing unit 14 performs signal processing such as decoding, digital / analog conversion, and amplification on the audio data supplied from the control unit 12, converts the audio data into an analog audio signal, and outputs the analog audio signal to the speaker 15.

  The display unit 17 is configured using a display device such as a liquid crystal display panel or an organic EL (Electro-Luminescence) panel, for example, and an image corresponding to a video signal supplied from the control unit 12 (FIGS. 1 and 2 and the like). ) Is displayed. For example, various information and images such as the phone number of the callee at the time of outgoing call, the phone number of the other party at the time of incoming call, the contents of received mail and outgoing mail, date, time, remaining battery level, success / failure of outgoing call, standby screen, etc. To do.

  The operation unit 18 includes keys to which various functions are assigned such as a power key, a call key, a numeric key, a character key, a direction key, a determination key, and a call key. Is operated, the signal corresponding to the operation content is generated and input to the control unit 12 as a user instruction. Here, it is used as an input means for selecting a tab displayed on the standby screen.

  The control unit 12 includes a main control unit 120, an operation input acquisition unit 121, an application execution control unit 122, a drawing / display control unit 123, and a display memory 124, so that the internal configuration is shown in functional development. It consists of.

  Whenever the main control unit 120 updates the document to be displayed on the display unit 17, the main control unit 120 stores the display history of the document in the storage unit 13, and when the execution of the document display application is interrupted, In addition to the display history, it is stored in the storage unit 13 and the display unit 17 displays interrupt display information indicating that the display of the document by the interrupted document display application is interrupted, and the interrupt display information is selected and resumed. Is designated as a control center for realizing the function of the control unit 12 that controls to acquire the document again by the communication unit 11 and display the document on the display unit 17 based on the acquisition source information. It controls the sequence control of each block described later.

  The main control unit 120 also stores the display history of the document in the storage unit 13 every time the document to be displayed on the display unit 17 is updated, and the document display application is interrupted while the first document is displayed. When the second document is requested to be displayed by the document display application while another application is being executed, the acquisition destination information of the first document is stored in the storage unit 13 separately from the display history, and then the document display is performed. It becomes a control center for realizing the function of the control unit 12 that controls the application to display the second document, and here, it controls the sequence control of each block described later.

The operation input acquisition unit 121 acquires input data generated by the user operating the operation unit 18 and includes instructions for executing, interrupting, and ending the application, and delivers the input data to the main control unit 120.
The application execution control unit 122 has a function of executing an application including a browser, and has been interrupted by using the simple bookmark registration list 131 allocated to the storage unit 13 and the content stored in the cache area 132. The page is redisplayed, and the system save area 133 is used to manage each status of activation, execution, interruption, or termination of the execution application. In addition, the drawing / display control unit 123 edits the content generated by the application execution control unit 122 and stored in the storage unit 13 for display and draws the display content on the display memory 124, and displays the display content on the display unit 17. It is read out in synchronization with the timing and displayed on the display unit 17.

  The functions of the respective blocks 120 to 124 described above are achieved by the control unit 12 executing the respective programs stored in the storage unit 13. It does not indicate only what is divided and incorporated as another block, but is simply a representation of each processing unit separately for the sake of simplicity. Although the display memory 124 is shown here as being independently present in the control unit 12, the display memory 124 may be allocated to a partial area of the storage unit 13.

  FIG. 5 is an operation sequence diagram for explaining the operation of the portable information terminal according to the embodiment of the present invention. Here, the user interface (the display unit 17 and the operation unit 18), the drawing / display control, and FIG. Between the unit 123 and the application execution control unit 122, (a) operation at the normal end of the application, (b) operation at the normal resumption of the application, and (c) a simple bookmark registration operation at the time of cooperation with the suspended application Each is shown.

  In the operation sequence diagram of FIG. 5, (a) the operation sequence at the normal end of the application will be described. Here, when a user operates the operation unit 18 and presses the end key while a certain application is activated (S301), the drawing / display control unit 123 generates information for displaying the end confirmation screen. Then, drawing is performed in the display memory 124, and an end confirmation screen is displayed on the display unit 17 (S302). On the other hand, when the user who has confirmed the display content selects the interruption of the application via the completion confirmation screen (S303), the application execution control unit 122 executes the interruption completion process of the application (S304). Then, the drawing / display control unit 124 that has received the notification of the completion of the interruption completion process from the application execution control unit 122 generates an interruption icon indicating the presence of the interruption application, draws it in the display memory 124, and displays the display unit 17. The interrupting icon is displayed in (S305).

  Next, (b) the operation at the time of normal application restart will be described. The user operates the operation unit 18 to select the suspended icon displayed on the display unit 17 to determine the suspended application (S306). At this time, the drawing / display control unit 123 deletes the suspended icon. (S307). Then, the application execution control unit 122 acquires the interruption information of the corresponding application from the storage unit 17 and executes the application restart process (S308), and the drawing / display control unit 123 performs application screen display at the time of interruption ( S309). When the user operates the operation unit 18 to instruct application termination (S310), the application execution control unit 122 executes application termination processing (S311), and the drawing / display control unit 123 accompanies the suspended icon. No standby screen information is generated and displayed on the display unit 17. In step S311, it is determined whether a simple bookmark is used as interruption information according to the designated suspended application, and processing corresponding to each is executed.

  Next, (c) operation at the time of cooperation with the interrupted application will be described. For example, when the application A is in a suspended state and the user operates the operation unit 18 to open the application B and the application B performs an operation to call the suspended application A (S312), the application execution control unit 122 registers the application A in the suspended state as a simple bookmark (S313), terminates the application A once more, and further creates a new application A based on the contents described in the cooperation source application B. The startup process is executed, and control is transferred to the drawing / display control unit 123 (S314). As a result, the drawing / display control unit 123 generates application execution screen information and displays it on the display unit 17 (S315).

  FIG. 6 is a flowchart cited for explaining the operation of the portable information terminal according to the embodiment of the present invention shown in FIGS. 3 and 4 configured to enable the state transition shown in FIG. The flow of processing at the time of interruption is shown. Hereinafter, the operation of the portable information terminal according to the embodiment of the present invention shown in FIGS. 3 and 4 will be described in detail with reference to the flowchart of FIG.

First, it is assumed that the user has activated a certain application (here, a mailer) in a background where processing by the browser is interrupted (S401 “Yes”). The application started here is linked to the Web page (specifically, for example, the URL is linked to the expanded mail), for example, when the user operates the operation unit 18 When the URL part in the e-mail is selected (S402 “Yes”), the main control unit 120 delivers the URL acquired via the operation input acquisition unit 121 to the main control unit 120. The main control unit 120 activates the application execution control unit 122 based on the acquired URL, and the application execution control unit 122 refers to the simple bookmark registration list 131 of the storage unit 13 based on the URL, and displays by the suspended browser. It is determined whether or not the middle document is registered (S403).
If it is determined that the suspended Web page is registered in the simple bookmark list 131 (S403 “Yes”), the application execution control unit 122 activates the drawing / display control unit 133 to draw / display The control unit 133 displays on the display unit 17 the Web page that is requested to be activated by cooperation (S404). If it is determined that it is not registered (S403 “No”), the suspended Web page is stored in the storage unit 13. While registering in the simple bookmark registration list 131 (S405), the drawing / display control unit 133 is activated to display on the display unit 17 the web page requested to be activated by cooperation (S404).

Then, the execution of the Web page of the cooperation destination is interrupted or terminated again (S406 “Yes”), and after returning to the standby screen (S407), the user is displayed on the standby screen of the display unit 17. One of the interrupted icons is selected (S408 “Yes”). Here, the suspended icon corresponds to various applications such as navigation, mailer, music player, etc. in addition to the browser, and may include a plurality of browsers. For this reason, when the cursor is placed on the suspended icon, the name of the suspended application indicated by the icon is displayed, and even if the browser is suspended, the text or URL related to the Web page from the simple bookmark registration list 131 or the cache area 132 is displayed. Is displayed, providing convenience to the user when selecting.
When the selected interrupted icon indicates a Web page and the execution restart is instructed (S409 “Yes”), the application execution control unit 122 displays the simple bookmark registration list 131 allocated and stored in the storage unit 13. It is referred and it is determined whether or not the suspended Web page is registered as a simple bookmark (S410).

  If registered (S410 “Yes”), the communication unit 11 is controlled via the main control unit 121 to connect to the registered URL, and the Web page is acquired from the site by communication (S412). ). On the other hand, if it is the latest (most recent) Web page not registered in the simple bookmark registration list 131 (S410 “No”), the content (display history) of the Web page is acquired from the cache area of the storage unit 13 and rendered. The display control unit 123 is activated, and the drawing / display control unit 123 draws the contents of the cache area 132 in the display memory 124 and reads out in synchronization with the display timing of the display unit 17 to obtain a desired display (S411). ).

  As described above, according to the portable information terminal according to the above-described embodiment of the present invention, for example, when a suspended web page is called from a mailer, if the web page is being executed in the background, By registering the Web page being executed as a simple bookmark and generating it as an interrupted icon and displaying it on the standby screen, even a relatively inexpensive CPU that does not have a high processing capability can receive a plurality of browsers (tasks). ) Can be seen to be operating, and from this, pseudo multitasking can be realized. In addition, since a plurality of suspended icons are displayed, it is easy to grasp the execution state of the application.

  Note that the browser has a standard function of registering the URL of the displayed page as a “favorite” in the simple bookmark. The present invention uses this simple bookmark registration function. For this reason, when ending a Web application, it is necessary to be able to select whether to end or cancel by registering a simple bookmark. The simple bookmark registration here has the same function as the “favorite” of the browser, and therefore, the operation is accompanied by the URL connection when resuming. Even if other web pages are not open, you cannot immediately see the screen that was interrupted, so when you display another web page from another app, you can automatically bookmark the web page that was interrupted automatically You may register with. Or you may provide the environment which displays a setting screen and makes a user select.

  In addition, the simple bookmark registration used in the present invention is used only at the time of interruption, unlike the regular “favorite” registration, and the contents of the simple bookmark registration at the time of resuming when the interruption icon is selected are Discarded. Here, since a plurality of suspended icons of the same browser are displayed on the standby screen, the name of the application displayed when the cursor is placed on the icon is the name of the suspended web page. If the name is not registered on the Web page, the URL may be displayed.

  In addition, according to the above-described embodiment of the present invention, the mobile phone 1 is exemplified as the mobile information terminal. However, the mobile phone 1 is not limited to the mobile phone 1 and can be similarly applied to PDA (Personal Digital Assistants), game machines, and the like. Is possible. The functions of the constituent blocks of the information browsing apparatus of the present invention may be realized entirely by software, or at least a part thereof may be realized by hardware. For example, the processing in the control unit 12 (the main control unit 120 and the application execution control unit 122) and the data processing in the communication unit 11 and the voice processing unit 14 may be realized on a computer by one or more programs. , At least a part thereof may be realized by hardware.

It is the screen transition figure quoted in order to demonstrate the specification of the function switching UI of a mobile phone. It is the screen transition figure quoted in order to demonstrate the specification of the improved function switching UI of a mobile telephone. It is a block diagram which shows the internal structure of the portable information terminal which concerns on embodiment of this invention. It is a figure which shows an example of the data structure of the simple bookmark registration list allocated and stored in the memory | storage part shown in FIG. It is the operation | movement sequence diagram quoted in order to demonstrate operation | movement of the portable information terminal concerning embodiment of this invention. It is the flowchart quoted in order to demonstrate operation | movement of the portable information terminal concerning embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Mobile phone, 11 ... Communication part, 12 ... Control part, 13 ... Memory | storage part, 14 ... Audio | voice processing part, 15 ... Speaker (SP), 16 ... Microphone (MIC), 17 ... Display part, 18 ... Operation part, DESCRIPTION OF SYMBOLS 120 ... Main control part, 121 ... Operation input acquisition part, 122 ... Application execution control part, 123 ... Drawing / display control part, 131 ... Simple bookmark registration list, 132 cache area | region, 133 ... System evacuation area | region.

Claims (9)

A display for displaying the document;
A storage unit for storing information;
A communication unit connectable to a computer network;
A control unit capable of executing / suspending / ending an application program including a document display application program for displaying a document acquired by the communication unit;
The controller is
Every time the document to be displayed on the display unit is updated, the display history of the document is stored in the storage unit,
When the execution of the document display application program is interrupted, acquisition source information regarding the document being displayed is stored in the storage unit separately from the display history, and the display of the document by the interrupted document display application program is being interrupted Display interruption display information indicating the presence on the display unit,
When the interruption display information is selected and restart is instructed, control is performed so that a document is acquired again by the communication unit based on the acquisition destination information and displayed on the display unit. The controller is
When interrupting the document display application program and displaying a new document on the display unit, the acquisition unit information related to the previously displayed document is stored in the storage unit and the document display application program is terminated. The portable information terminal according to claim 1, wherein the document display application program is restarted to display the new document. The controller is
The portable information terminal according to claim 1, wherein a plurality of the interrupt display information can be displayed on the display unit. A display for displaying the document;
A storage unit for storing information;
A communication unit connectable to a computer network;
A control unit capable of executing / suspending / ending an application program including a document display application program for displaying a document acquired by the communication unit;
The controller is
Every time the document to be displayed on the display unit is updated, the display history of the document is stored in the storage unit,
When the document display application program is interrupted while the first document is being displayed and a second document is requested to be displayed by the document display application program while another application program is being executed, The portable information terminal is characterized in that after the acquisition destination information of one document is stored in the storage unit separately from the display history, the second document is controlled to be displayed by the document display application program. . The controller is
When displaying the standby section after displaying the second document on the display unit, display interrupt display information indicating that display of the first document by the document display application program is interrupted. The portable information terminal according to claim 4. The controller is
When the standby screen is displayed after the display of the second document is ended on the display unit, interrupt display information indicating that display of the document by the document display application program is interrupted is displayed on the display unit. The portable information terminal according to claim 4, wherein each of the document and the second document is displayed. The acquisition destination information of the second document is linked to a part of the information handled by the other application program,
The controller is
The control unit performs control so as to interrupt the other application program and start the document display application program when an instruction to obtain cooperation of the second document is issued during execution of the other application program. Item 7. The portable information terminal according to any one of Items 4 to 6. The controller is
When the interruption display information is selected and a restart instruction is issued and the document display application program is executed to display the document again, the communication unit acquires the document based on the acquisition source information corresponding to the selected interruption display information. The portable information terminal according to claim 4, wherein the portable information terminal is a portable information terminal. The controller is
When the interruption display information is selected and restarted when the document display application program is executed to display the document again, if there is no acquisition destination information corresponding to the selected interruption display information, the display history is displayed. The portable information terminal according to any one of claims 4 to 8, wherein a document is displayed based on the document.

Images