JP5611380B2 - Terminal device, input control method, and program - Google Patents

Description

  The present invention relates to information input technology to user terminals such as smartphones and tablets. Furthermore, the present invention relates to a technique for authenticating and registering a user terminal in a service that requires registration of the user terminal such as an information sharing service.

  In a terminal such as a smartphone or a tablet provided with a touch panel, handwritten input is performed with a finger, a touch pen, or the like. In inputting, after selecting to input, an operation such as selecting a thickness or a color is further performed, but various devices for reducing the operation burden on the user are performed. For example, a technique is known in which a user's drawing direction is determined to automatically scroll so as to continue writing on the screen without scrolling the screen (see Patent Document 1).

JP 2010-134897 A

  In order to improve the operability of input to terminals such as smartphones and tablets, various devices have been conventionally made. Such a device is convenient for users accustomed to the operation of terminals such as smartphones and tablets, but it is difficult to understand the operation method for users unfamiliar with the operation of the terminal, and it is an unexpected operation for the user. There was still a problem of poor usability.

  The present invention has been made in view of the above points, and provides a technique that enables even a user unfamiliar with the operation of the terminal to operate the terminal intuitively and easily perform input to the terminal. For the purpose.

  Another object of the present invention is to provide a technique that enables even a user unfamiliar with the operation of a terminal to easily perform registration processing in an information sharing service or the like.

In order to solve the above problems, the present invention is a terminal device including a display operation unit having a screen display function and an input function,
An input control means for setting the terminal device in an input mode when a predetermined location on the screen displayed by the display operation unit is pressed, and releasing the input mode when the pressing to the predetermined location is completed;
An input information processing means for receiving an input by a contact operation on the screen when the terminal device is in an input mode;
The input information processing means is configured as a terminal device that performs predetermined processing on the input information when the pressing to the predetermined location ends and the input mode is canceled. . The input information processing means may display the input by the contact operation on the screen when receiving the input by the contact operation on the screen.

  The predetermined process is, for example, a process of transmitting the input information to another device or a character recognition process for the input information.

  The input information processing means may transmit information on the position on the screen where the contact operation is performed to another device when the terminal device is in the input mode. The input information processing means may display the input information in a color corresponding to the other device on the screen when the information input by the other device is received.

  The present invention can also be configured as an input control method executed by the terminal device and a program for causing a computer to function as each means in the terminal device.

According to the present invention, there is provided an information sharing system including a plurality of terminal devices having the above-described configuration, and further including an information sharing server, wherein the first terminal device and the second terminal device in the plurality of terminal devices provide the first terminal device. A registration processing method for registering the terminal device in the information sharing server,
The first terminal device accessing the information sharing server, receiving and displaying a password associated with the first terminal device from the information sharing server;
The password is input at the second terminal device, and the second terminal device transmits the password to the information sharing server.
The information sharing server identifies the first terminal device associated with the password received from the second terminal device, and registers the first terminal device in a group to which the second terminal device belongs. It can also be configured as a registration processing method characterized in that.

  According to the present invention, even a user unfamiliar with the operation of the terminal can intuitively operate the terminal and easily input to the terminal.

It is an example of composition of an information sharing system in a 1st embodiment. It is a figure for demonstrating the operation | movement outline | summary of the user terminal. 4 is a flowchart showing an operation of the user terminal 100. It is a function block diagram of the information sharing server in 2nd Embodiment. It is a figure which shows the example of the table stored in the client ID storage part 433. 6 is a diagram illustrating an example of a table stored in a group ID storage unit 434. FIG. It is a sequence diagram for demonstrating operation | movement of the information sharing system in 2nd Embodiment. It is an example of a screen displayed on the user terminal 100 in 2nd Embodiment. It is an example of a screen displayed on user terminal 500 in a 2nd embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. The embodiment described below is only an example, and the embodiment to which the present invention is applied is not limited to the following embodiment.

  Hereinafter, the first embodiment and the second embodiment will be described. Both embodiments relate to the information sharing service, but the first embodiment is mainly characterized by the configuration related to the input in the user terminal, and the second embodiment is mainly used for authentication and authentication in the information sharing system. There is a feature in the configuration related to registration.

(First embodiment)
<System configuration>
FIG. 1 shows a configuration example of an information sharing system according to the first embodiment of the present invention. As shown in FIG. 1, the information sharing system according to the present embodiment includes a configuration in which a user terminal 100 and an information sharing server 200 are connected via a communication network 300 such as the Internet.

  The user terminal 100 according to the present embodiment is, for example, a smartphone, a tablet, a small PC, or the like, and is a terminal that includes a display operation unit (for example, a touch panel) that has both a display function and an input function.

  As shown in FIG. 1, the user terminal 100 includes a display operation unit 110, a drawing input control unit 120, an input information processing unit 130, a data transmission unit 140, a data reception unit 150, a content storage unit 160, and a drawing processing unit 170. . In addition, the drawing processing unit 170 includes a drawing information storage unit 171. FIG. 1 shows functional units particularly related to the present embodiment, and the user terminal 100 includes an existing function (not shown) for functioning as, for example, the above-described smartphone, tablet, small PC, or the like. Hereinafter, an outline of each functional unit will be described. Details will be described later in the explanation of the operation.

  The display operation unit 110 is a display that performs screen display, and is also an operation unit that inputs information according to a contact operation with a finger, a touch pen, or the like. The display operation unit 110 is, for example, a touch panel in a smartphone, a tablet, or the like. When the drawing input control unit 120 detects that a predetermined position (location) on the screen of the display operation unit 110 is pressed, the drawing input control unit 120 determines that drawing input is started, and sets the input information processing unit 130 to the input mode. Switch. Note that switching the input information processing unit 130 to the input mode is equivalent to switching the user terminal 100 to the input mode. Further, the drawing input control unit 120 determines that drawing input is finished when the pressing of the predetermined position is finished, notifies the input information processing unit 130 of the end of the input mode, and cancels the input mode.

  The input information processing unit 130 performs information processing according to input information from the display operation unit 110 based on a touch operation with a finger or the like, or input information from the outside via the data reception unit 150. For example, when the input information processing unit 130 is set to the input mode from the drawing input control unit 120, the input information processing unit 130 passes input information from the display operation unit 110 to the drawing processing unit 170 to perform drawing on the display operation unit 110. When the input mode ends, for example, the input information (drawing information) input in the input mode and stored in the drawing information storage unit 171 is passed to the data transmission unit 140, and the data transmission unit 140 transmits the drawing information. . Further, in a normal mode other than the input mode, the input information processing unit 130 causes the drawing processing unit 170 to perform screen scrolling according to input information from the display operation unit 110, for example. Further, the input information processing unit 130 transmits the content stored in the content storage unit 160 to the information sharing server 200 via the data transmission unit 140 in accordance with, for example, input information (instruction) from the display operation unit 110. Such processing is also performed.

  The drawing processing unit 170 is a functional unit that performs drawing on the screen of the display operation unit 110 based on input information received from the input information processing unit 130. The drawing information storage unit 171 stores drawing information. The drawing information may be input information itself (for example, information on a touched position), a drawing command converted from the input information, character information, or the like, or image information.

  The data transmission unit 140 is a functional unit that transmits data to the communication network 300, and the data reception unit 150 is a functional unit that receives data from the communication network 300. The content storage unit 160 stores content such as photographs, for example.

  The user terminal 100 according to the present embodiment can be realized by causing a terminal device including a computer function to execute a program describing the processing contents described in the present embodiment. That is, the function of each unit of the user terminal 100 executes a program corresponding to processing executed in each unit of the user terminal 100 using hardware resources such as a CPU, a memory, and a hard disk built in the computer. Can be realized. Further, the program can be recorded on a computer-readable recording medium (portable memory or the like), stored, or distributed. It is also possible to provide the program through a network such as the Internet or electronic mail.

  The information sharing server 200 shown in FIG. 1 transmits information such as content received from a certain user terminal to other user terminals, thereby sharing the information between the user terminals. As illustrated in FIG. 1, the information sharing server 200 includes a data receiving unit 210, a data transmitting unit 220, and an information sharing processing unit 230. The data transmission unit 220 is a functional unit that transmits data to the communication network 300, and the data reception unit 210 is a functional unit that receives data from the communication network 300. For example, the information sharing processing unit 230 holds a table in which identification information of a user terminal is associated with identification information of a group, and by referring to the table, information received from a certain user terminal is the same as the user terminal. It is transmitted to other user terminals belonging to the group, and information is shared within the group.

<System operation>
Hereinafter, the operation of the information sharing system according to the present embodiment will be described focusing on the operation of the user terminal 100.

(1) Overview First, an overview of the operation of the user terminal 100 will be described with reference to FIG. In the present embodiment, as shown in FIG. 2, for example, “Please press here to write” is described in a part of the screen of the display operation unit 110 of the user terminal 100 (example: screen chopsticks). A button (area) is displayed. By pressing this button, the user of the user terminal 100 can enter the drawing mode on the screen by setting the user terminal 100 to the input mode. Then, the user inputs a desired character or picture on the screen with the finger of the hand not pressing the button, for example, while pressing the button. Since the user terminal 100 is controlled so as not to perform a load-intensive process such as data transmission during the input mode, the user can perform drawing smoothly.

  When the user releases the button, the input mode ends. For example, a process of transmitting drawing information (drawing information may be referred to as input information) input during the input mode to the information sharing server 200 is performed. .

  In the example shown in Fig. 2, a button with "Please press here to write" is displayed, but even if only a button is displayed without writing "Please press here to write". Good. In addition, an image indicating an area to be pressed to enter the input mode, such as a button, may not be displayed. Further, the position on the screen to be pressed to enter the input mode may be set in advance. The input determination may be realized not only by pressing a part on the screen but also by a physical button provided in the user terminal 100. Furthermore, the position on the screen that is pressed to enter the input mode may also have a biometric authentication function.

  Further, in the present embodiment, since it is assumed that the chat related to the content (for example, photo) related to sharing with other users is displayed on the screen, the screen is displayed when inputting in the input mode. Assumes that content is displayed, but input may be performed in the input mode in a state where the content is not displayed on the screen.

  When performing high-load processing such as sending information to the server at the time of drawing input, there is a concern that the smoothness of drawing input may be reduced. In this embodiment, the terminal can clearly grasp the completion of drawing input. As a result, high-load processing can be performed without overlapping timing with drawing input, and drawing input can be performed smoothly. Conventionally, the end of writing was detected by blanking for a certain period of time or pressing a button. In this embodiment, the end of writing can be detected only by detecting that a finger or the like is released from a predetermined position. It is possible to eliminate the time lag to the next processing, reduce the user load, and reduce operation errors.

  Further, in this embodiment, since the input is performed while pressing the chopsticks on the screen of the terminal, it becomes possible to input to the terminal with the same feeling as when writing characters or pictures on paper. In other words, in general, when writing letters and pictures on paper, it is often performed by pressing the paper chopsticks and releasing the hand after writing, but in this embodiment, it is the same feeling as the above operation. Input to the terminal can be performed, and even a user who is not used to input such as a smartphone (eg, an elderly person) can easily input to the terminal.

(2) Details Next, operations of the user terminal 100 will be described in detail with reference to the flowchart of FIG. When the display operation unit 110 receives an input (touch operation with a finger or the like on the screen, an operation to release the finger from the screen) from the user (step S101), the drawing input control unit 120 performs input mode switching. Whether the predetermined position on the screen (eg, the position of the button shown in FIG. 2) is pressed, whether the predetermined position has been pressed, or other input (step 102). ). Note that the pressing of a predetermined position on the screen is a pressing from a state where the pressing is not performed.

  If the input at step 101 is a predetermined position on the screen, the drawing input control unit 120 puts the input information processing unit 130 into the input mode (step 103). The input information processing unit 130 remains in the input mode until the input mode is canceled. In the input mode, the input information processing unit 130 interprets the information input from the display operation unit 110 as information for drawing, and passes the information to the drawing processing unit 170, whereby the screen of the display operation unit 110 is displayed. Display an image on top. In the input mode, the drawing process is performed without performing a heavy load process such as transmission of drawing information. The drawing information is stored in the drawing information storage unit 171.

  When the input in step 101 is the end of pressing the predetermined position on the screen, the drawing input control unit 120 instructs the input information processing unit 130 to cancel the input mode, and the input mode is canceled (step 104). The input information processing unit 130 reads out the drawing information input during the input mode from the drawing information storage unit 171 as a predetermined process to be performed when the input mode is canceled, and transmits the drawing information from the data transmission unit 140 to the information sharing server 200. A transmission process is performed (step 105). Note that the process of transmitting the drawing information to the information sharing server 200 is an example of a predetermined process in step 105.

  If it is determined in step 102 that the input is neither pressing a predetermined position on the screen nor ending pressing, the process proceeds to step 106. When the input information processing unit 130 is not in the input mode (No in Step 106), the input information processing unit 130 performs processing according to the input in Step 101. The process here is, for example, scrolling the screen. When in the input mode (Yes in step 106), as described above, the input information processing unit 130 performs a process for drawing based on the input information.

<About Step 105>
As the processing in step 105 described above, when the information input by handwriting is a character, character recognition processing may be performed to transmit or save the recognized character. Thereby, the handwritten disordered character can be made into a beautiful character. The font may be changed by the user. Further, as character recognition processing, a character may be automatically decorated for a portion recognized as a character.

<Devices for operations such as input>
When inputting in the input mode, the input information processing unit 130 recognizes that input with one finger is entry (drawing), performs processing such as screen display, and uses other fingers (example: If the operation is performed with two fingers), the command recognizes that the command is to change the line thickness and color when displaying the input information, and changes the line thickness and color when displaying the input information. You may make it do. Also, input and deletion may be switched according to the usage of fingers (number, movement method, etc.).

  Further, the processing of the terminal may be changed by the operation when the finger or the like is released from the state where the predetermined position is pressed with the finger or the like under the control of the input information processing unit 130. For example, the input content may be confirmed when the pressed position is slid upward and released, and the input content may be erased when slid downward and released.

  Further, the processing content of the terminal may be changed in the order in which the input finger and the finger holding the predetermined position are released under the control of the input information processing unit 130. For example, the input can be confirmed when the input finger is released first, and the input can be erased when the pressed finger is released first. Also, the control of the input information processing unit 130 may perform processing such as rotating the display screen starting from the position pressed on the screen or extending the display screen starting from the pressed position.

<Ingenuity on information sharing>
In the present embodiment, information input on the screen of user terminal 100 is sent to information sharing server 200, transmitted from information sharing server 200 to the user terminals in the group, and input at user terminal 100 at the user terminal. Displayed information is displayed. At this time, the display color or the like may be changed depending on the user terminal that performs writing. This makes it possible to distinguish from others. For example, when the information sharing server 200 transmits the input information to the user terminal, the identification information is transmitted together with the identification information of the user terminal that has written the input information. This can be realized by displaying information with a color corresponding to. For example, information display in a color corresponding to such identification information is performed by the input information processing unit 130 in the user terminal 100.

  In the present embodiment, input information is basically not transmitted while the user terminal 100 is in the input mode. However, even if the user terminal 100 is in the input mode, input is not performed at the user terminal 100. The position information of the area on the screen (the position where the touch operation is performed) (position information of a predetermined range, for example, the diameter and center coordinates of a circle, the coordinates of four points of a square, etc.) It is good also as transmitting for sharing with a user terminal. This is because such a transmission of information does not cause a heavy load. Such transmission control is performed by the input information processing unit 130. In the user terminal that has received the position information of the area, for example, a translucent area image is displayed. As a result, it is possible to know what is being written in the user terminal 100 and where is being written to the partner terminal in the group.

<Others>
Moreover, although the example which uses the user terminal 100 in an information sharing service was demonstrated in the example mentioned above, application of the input method mentioned above in the user terminal 100 is not necessarily restricted to utilization of an information sharing service, but various uses. Applicable to. For example, as a handwritten character recognition application, the user of the user terminal 100 performs a process such that a predetermined position on the screen is pressed and input is performed, and the user terminal 100 converts the input information into characters by being released and stores the input information in a hard disk or the like. It is good. It can also be applied to gesture input (such as browser mouse gesture) and metadata input to content.

  Further, when information sharing is performed, the information sharing may be performed by directly communicating between user terminals without using the information sharing server 200.

  As described above, by using the technique described in the present embodiment, even a user who is unfamiliar with the operation of the terminal can perform an input operation smoothly and intuitively.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. First, an outline will be described.

  In general, in order to receive the information sharing service, it is necessary to log in to the sharing group. For this purpose, the user performs authentication by inputting, for example, an ID / password. These authentications often require all users to perform the same operation.

  However, it is unlikely that all group members have the same skill level. For example, it is difficult to input an ID / password for a user who is not familiar with the operation of the terminal, such as an elderly person. In addition, if it is attempted to increase security, the usage becomes more difficult, and the operation becomes even more difficult for an unfamiliar user. Therefore, in the present embodiment, a technique for reducing the operation burden on a user who is unaccustomed to the operation of a terminal such as an elderly person and enabling easy registration to a group will be described.

<System configuration>
The overall configuration of the information sharing system in the present embodiment is the same as that shown in FIG. 1, and is a configuration in which a user terminal and an information sharing server are connected to a communication network. However, in the present embodiment, the information sharing server is different from the information sharing server in the first embodiment. The user terminal according to the second embodiment may be a terminal having the same function as the user terminal according to the first embodiment, or may be a general smartphone or tablet terminal that does not have the function according to the first embodiment. Good. In the following description, it is assumed that the user terminal of the present embodiment is the same user terminal 100 as that of the first embodiment. Moreover, in this Embodiment, the user terminal 500 is used as another user terminal. The user terminal 500 may also be a terminal having the same function as the user terminal in the first embodiment, or may be a general terminal that does not have the function described in the first embodiment.

  FIG. 4 shows a configuration example of the information sharing server 400 according to the present embodiment. Similar to the information sharing server 200 of the first embodiment, the information sharing server 400 according to the present embodiment transmits information such as contents received from a certain user terminal to other user terminals, thereby It has a function to share information with.

  As illustrated in FIG. 4, the information sharing server 400 includes a data receiving unit 410, a data transmitting unit 420, and an information sharing processing unit 430. The information sharing processing unit 430 includes an authentication control unit 431, a password generation unit 432, a client ID storage unit 433, a group ID storage unit 434, and an information sharing control unit 435. FIG. 4 shows functional units particularly related to the present embodiment, and includes existing functions (not shown) for operating as an information sharing server.

  The data transmission unit 420 is a functional unit that transmits data to the communication network 300, and the data reception unit 410 is a functional unit that receives data from the communication network 300.

  The information sharing control unit 435 in the information sharing processing unit 430 transmits information received from a certain user terminal to other user terminals belonging to the same group as the user terminal, thereby causing information sharing within the group. Basic processing in the shared server 400 is executed.

  The authentication control unit 431 performs processing related to authentication and registration, which will be described in detail later with reference to a sequence diagram. The password generation unit 432 generates a temporary password. In this embodiment, a plurality of hiragana words are generated as temporary passwords. This is only an example, and the characters used here may be any language information.

  The client ID storage unit 433 stores the client ID, which is identification information of the user terminal, and the password generated by the password generation unit 432 in association with each other as table information. FIG. 5 shows an example of a table stored in the client ID storage unit 433.

  The group ID storage unit 434 stores the group ID and the client ID as table information in association with each other. FIG. 6 shows an example of a table stored in the group ID storage unit 434.

  The information sharing server 400 according to the present embodiment can be realized by causing a computer to execute a program describing the processing contents described in the present embodiment. That is, the function of each unit of the information sharing server 400 executes a program corresponding to the process executed by each unit of the information sharing server 400 using hardware resources such as a CPU, memory, and hard disk built in the computer. This can be realized by doing so. Further, the program can be recorded on a computer-readable recording medium (portable memory or the like), stored, or distributed. It is also possible to provide the program through a network such as the Internet or electronic mail.

<System operation>
Hereinafter, the operation of the information sharing system according to the present embodiment will be described with reference to the sequence diagram of FIG. In the example illustrated in FIG. 7, the user terminal 100 and the user terminal 500 are connected to the information sharing server 400. In this example, it is assumed that the user terminal 100 and the user terminal 500 are both the same as the user terminal described in the first embodiment. That is, the user terminal 100 includes a display operation unit 110, a drawing input control unit 120, an input information processing unit 130, a data transmission unit 140, a data reception unit 150, a content storage unit 160, and a drawing processing unit 170. The user terminal 500 has the same functions as the corresponding functional units in the user terminal 100, and includes a display operation unit 510, a drawing input control unit 520, an input information processing unit 530, a data transmission unit 540, a data reception unit 550, and content storage. Unit 560 and a drawing processing unit 570.

  In this example, it is assumed that the user of the user terminal 100 is a user who is unfamiliar with the operation of the terminal and cannot input an ID / password, such as an elderly person (eg, grandfather). It is assumed that the user of the user terminal 500 is a general user who can normally operate the terminal (eg, grandchild of the grandfather). Further, it is assumed that the user of the user terminal 500 has already logged in to the information sharing server 400 and is registered in a certain group. In this example, in the example illustrated in FIG. 6, it is assumed that the client ID of the user terminal 500 is the client 10 and the user terminal 500 is registered in the group 1. Hereinafter, a process for registering the user terminal 100 in the group 1 will be described.

  In FIG. 7, first, the user terminal 100 accesses the information sharing server 400 (step 201). Information sent from the user terminal 100 to the information sharing server 400 at the time of access includes a client ID held by the user terminal 100. The opportunity to access is not limited to a specific operation. For example, the user of the user terminal 100 touches a predetermined icon on the screen to input a predetermined application (the drawing input control unit 120 or the input information processing unit 130). Or a button indicating that the information sharing server 400 is accessed may be touched. The button indicating that the information sharing server 400 is accessed is displayed by, for example, the input information processing unit 130. When a touch is detected, the input information processing unit 130 accesses the information sharing server 400 via the data transmission unit 140. To do.

  In the information sharing server 400 that has received the client ID (client 1) of the user terminal 100 by access from the user terminal 100, the authentication control unit 431 receives the client ID. Then, the authentication control unit 431 instructs the password generation unit 432 to generate a password, and stores the password generated by the password generation unit 432 in the client ID storage unit 433 in association with the client ID of the user terminal 100 (step 202). In this example, the password generation unit 432 generates a combination of three hiragana words (apple, goragura, and kumama) as the password, and the password is the client ID of the user terminal 100 as shown in FIG. It is stored in the client ID storage unit 433 in association with the client 1.

  Next, the authentication control unit 431 transmits the password (a combination of hiragana words) generated by the password generation unit 432 to the user terminal 100 via the data transmission unit 420 (step 203). In the user terminal 100, the password is passed from the data receiving unit 150 to the input information processing unit 130, and the password is displayed on the screen of the display operation unit 110 under the control of the input information processing unit 130 (step 204).

  An example of the screen displayed in step 204 is shown in FIG. As shown in FIG. 8, a password that is three hiragana words is displayed, and a display that prompts the user (“family”) of the user terminal 500 to convey the password (three words) is displayed. Yes.

  Returning to FIG. 7, the user of the user terminal 100 viewing the screen notifies the user of the user terminal 500 of the password by telephone or the like according to the display content (step S205).

  The user of the user terminal 500 who has heard the password by telephone touches a predetermined button on the screen, for example, to display the input screen shown in FIG. The predetermined button is displayed by, for example, the input information processing unit 530. When a touch is detected, the input information processing unit 530 performs control to display the input screen illustrated in FIG.

  When the user of the user terminal 500 inputs a password (three hiragana words) and presses “input complete”, the input information processing unit 530 notifies the information sharing server 400 of the password via the data transmission unit 540 ( Step 206).

  The authentication control unit 431 in the information sharing server 400 that has received the password uses the password to associate the password with the client ID of the user terminal 100 (FIG. 5) stored in the client ID storage unit 433 (FIG. 5). In this example, the client 1) is searched and acquired. This is to identify the user terminal 100 associated with the password received from the user terminal 500. Then, the authentication control unit 431 registers the client ID in a group in which the user terminal 500 (client 10) that is the password notification source is participating (step 207). That is, in this example, as illustrated in FIG. 6, the authentication control unit 431 associates the client 1 that is the client ID of the user terminal 100 with the group 1 that is a group in which the user terminal 500 (client 10) participates. Stored in the group ID storage unit 434.

  The authentication control unit 431, after joining the user terminal 100 to the group in which the user terminal 500 participates as described above, information (group registration) indicating that the user terminal 100 has joined (registered) the group. Notification) is transmitted to the user terminal 100 and displayed on the screen of the user terminal 100 (step 208). This display is performed under the control of the input information processing unit 130 that has received the group registration notification via the data receiving unit 150.

  In addition, the authentication control unit 431 transmits information indicating that registration of the user terminal 100 to the group has been completed (registration completion notification) to the user terminal 500 for display. This display is performed under the control of the input information processing unit 530 that has received the group registration notification via the data receiving unit 550.

  By the above processing, for example, the user of the user terminal 100 can input information on the screen using the method described in the first embodiment, and can realize information sharing within the group. Note that a terminal registered in a group, such as the user terminal 100, may be automatically connected to the group in the second and subsequent accesses.

<About one-time password>
In the example described above, the password generation unit 432 of the information sharing server 400 has a word dictionary at the elementary school first grade level as an example, and generates a temporary password by extracting a plurality of words therefrom. Specifically, for example, 100 words are prepared as a word dictionary, from which three words are extracted and used as a password. There are _n C _m combinations of words (n> m), and the larger n is, the more difficult it is to guess the combination.

  In the above-described example, one of the three words may be selected by the user of the user terminal 100, and the user of the user terminal 500 may transmit the three words + the selected one word to the information sharing server 400. In addition to the three words, the user of the user terminal 500 is allowed to input an arbitrary word (name, birthday, etc.) and displayed on the user terminal 100 after authentication by the information sharing server 400. It is good also as giving the user of the user terminal 100 the certainty that authentication was performed by.

  The password issued (generated) by the password generation unit 432 is deleted by the authentication control unit 431 based on a predetermined condition. That is, the password is deleted from the table shown in FIG. For example, the authentication control unit 431 may delete the password when a certain time (for example, 10 minutes) has elapsed since the password was issued. Further, the authentication control unit 431 may delete the password when registration of the user terminal 100 is completed (when recorded in the table of FIG. 6). Note that as the number of words registered in the dictionary increases, it is possible to lengthen the time until a combination of words once extracted as a password is re-selected.

<About prevention of impersonation>
In the above-described example, when the user terminal 100 is registered in a group (for example, in step 208), information (for example, a photograph) of a password registrant (that is, a user of the user terminal 500) is displayed on the user terminal 100. It may be. This allows the user of the user terminal 100 to confirm that the registration is not performed by a person impersonating the user of the user terminal 500. Further, the terminal information of each user registered in the group may be displayed, for example, on the screen of the registered user terminal 500 so that the registration can be appropriately deleted. As a result, it is possible to cope with a case where the user has inadvertently registered.

  As described above, according to the present embodiment, there is provided a technique for reducing the operation burden on a user who is unaccustomed to the operation of a terminal such as an elderly person and enabling easy registration to a group. .

  The present invention is not limited to the above-described embodiments, and various modifications and applications are possible within the scope of the claims.

100 User terminal 110 Display operation unit 120 Drawing input control unit 130 Input information processing unit 140 Data transmission unit 150 Data reception unit 160 Content storage unit 170 Drawing processing unit 171 Drawing information storage unit 200 Information sharing server 210 Data reception unit 220 Data transmission unit 230 Information Sharing Processing Unit 300 Communication Network 400 Information Sharing Server 410 Data Reception Unit 420 Data Transmission Unit 430 Information Sharing Processing Unit 431 Authentication Control Unit 432 Password Generation Unit 433 Client ID Storage Unit 434 Group ID Storage Unit 435 Information Sharing Control Unit

Claims (7)

A terminal device that includes a display operation unit having a screen display function and an input function, and that shares information with a receiving-side terminal device ,
An input control means for setting the terminal device in an input mode when a predetermined location on the screen displayed by the display operation unit is pressed;
Input information processing means for displaying information input by an operation on the screen when the terminal device is in the input mode, on the screen;
The input information processing means is a terminal device that performs a predetermined process on the input information when the pressing to the predetermined location is completed,
The input information processing means transmits position information of an area on the screen where the operation is performed when the terminal device is in an input mode ,
In the receiving terminal device that has received the position information of the area transmitted by the input information processing means, an area image indicating that the user of the terminal device is operating is displayed. .   The terminal device according to claim 1, wherein the predetermined process is a process of transmitting the input information to another apparatus.   The terminal device according to claim 1, wherein the predetermined process is a character recognition process for the input information.   4. The input information processing unit, when receiving information input in another device, displays the input information in a color corresponding to the other device on a screen. The terminal device according to item 1. A terminal device that includes a display operation unit having a screen display function and an input function, and that shares information with a receiving-side terminal device ,
When the terminal device is in the input mode, an input information processing unit that displays information input by an operation on the screen displayed by the display operation unit on the screen,
The input information processing means transmits position information of an area on the screen where the operation is performed when the terminal device is in an input mode ,
In the receiving terminal device that has received the position information of the area transmitted by the input information processing means, an area image indicating that the user of the terminal device is operating is displayed. .   The program for functioning a computer as each means in the terminal device of any one of Claims 1 thru | or 5. An input control method that includes a display operation unit having a screen display function and an input function, and is executed by a terminal device that shares information with a receiving-side terminal device ,
A step of setting the terminal device in an input mode when a predetermined location on the screen displayed by the display operation unit is pressed;
When the terminal device is in the input mode, an input information processing step for displaying information input by an operation on the screen on the screen;
A step of performing a predetermined process on the input information when the pressing to the predetermined portion is completed, and an input control method comprising:
In the input information processing step, when the terminal device is in the input mode, the terminal device transmits position information of an area on the screen where the operation is performed ,
In the receiving terminal device that has received the position information of the area transmitted in the input information processing step, an area image indicating that the user of the terminal device is operating is displayed. Method.

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