JP2010157098A - Communication terminal and communication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that it is difficult to identify a sender when three or more persons communicate with each other for transmitting/receiving handwritten input information. <P>SOLUTION: In the case of transmitting/receiving handwritten input information, not only coordinate vector information input by a sender but also the terminal identification information of the terminal of the sender are transmitted, and the handwritten input information transmitted from the terminal is displayed in a display color preliminarily string-attached to the terminal identification information in a reception side terminal. Thus, it is possible to easily identify the sender of the information by confirming the color to be displayed on a display picture. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a communication method for a plurality of users to communicate with a handwriting input device.

  In recent years, with the development of the Internet, it has become possible to exchange character information by e-mail or the like very easily even in a mobile terminal such as a mobile phone. Recently, techniques for transmitting not only text data but also handwritten characters and symbols are also known. Furthermore, with regard to communication between devices, touch pens, fingers, etc. A technique for sharing input contents with other terminals in real time by sequentially transmitting coordinate information of an input device (hereinafter referred to as a “touch pen”) is known. (For example, refer to Patent Document 1) In recent years, with the evolution of liquid crystal technology and the like, color displays have also been developed for small screens such as displays of mobile phones and portable game machines and operation panels of digital cameras.

JP2001-111708

  Patent Document 1 assumes one-to-one communication between one sender and one receiver, and everything except the information that you enter is the information that the communication partner enters. It is possible to specify which input content is issued by which user without writing the name of the person.

On the other hand, in recent years, with the development of short-range wireless communication, it has become easy for a plurality of users to communicate at a time. It is desirable to be able to do this. However, in the method of Patent Document 1, in the case of communication by three or more users, there is a problem that it is not possible to specify which input content originates from which user.

Therefore, the present invention makes it possible to easily grasp which user has input each input content even when performing real-time communication of handwritten input content among three or more users. An object of the present invention is to provide a communication terminal and a communication method.

  In order to solve the above-mentioned problems, the communication terminal of the present invention is a communication terminal capable of communicating with a plurality of terminals, and a communication means between the input means for the user to input information and one or more other terminals. Communication control means for controlling, display color defining means for defining a display color for displaying information transmitted from the terminal for each terminal ID for each terminal ID, and the communication control means Adds the terminal ID of the terminal to the information input by the user by the input means and transmits it to another terminal, detects the source terminal ID from the information received from the other terminal, and determines the display color Display color determining means for determining a display color corresponding to the terminal ID of the transmission source based on the display color for each terminal ID defined by the means, and display information received using the determined display color Show above Characterized in that it comprises a display means.

  With the above configuration, the information input by the user to the communication terminal can be displayed on the display screen of each communicating terminal in the color assigned to the user. It is possible to recognize from which color the information is input by which user, and information for indicating which display content is input by which player on the screen. Since there is no need to display, the convenience of the user is improved and the display space can be kept as wide as possible.

  The input means of the communication terminal is configured integrally with the display screen, and the user can input handwritten information on the display screen with a touch pen or a finger. When inputting the handwritten information, the touch pen is used. Alternatively, it further includes trajectory information generating means for generating the handwritten information as trajectory information of the contact coordinates by periodically detecting contact coordinates between the finger and the display screen, and the display means is input by a user of the terminal The trajectory information generated by the trajectory information generation means based on the handwritten information is displayed by superimposing the handwritten information that has already been displayed, thereby updating the display contents sequentially, and the communication control means By transmitting and receiving the trajectory information newly input to each terminal and the terminal, the display means For the trace information received from the other terminals may be configured to be able to be displayed on the display screen of the terminal in real time.

  By adopting such a configuration, it is possible to input not only characters and symbols but also pictures and curves as desired, unlike in the case of chat using the numeric keypad, which is widely used in general. It becomes possible.

  In addition, the display means manages the display content by dividing it into a first layer for displaying the handwritten information and a second layer for displaying other information, so that it can be handwritten over an arbitrary background screen. It is good also as a structure which can display information.

  With the above configuration, information can be input or displayed on the content displayed on the second layer. For example, the game screen is displayed on the second layer, and the first layer is displayed. Using one layer, it is possible to convey the route information of “Which way to go” and information such as “There is an item here” more accurately to the communication partner. The textbook image and the presentation image can be displayed on the screen, and an underline and an emphasis symbol can be added to the first layer for effective explanation.

  Furthermore, the communication method of the present invention is a method for performing communication using a communication terminal capable of communicating with a plurality of terminals, and includes an input step in which a user inputs information and one or more other terminals. When the communication control step for controlling communication and communication connection with other terminals are started, for each terminal, the display color when displaying the information transmitted from the terminal for each terminal ID on the display unit A display color defining step for defining the terminal ID of the transmission source and a terminal ID of the transmission source based on the display color for each terminal ID defined in the display color defining step from the information received from the other terminal A display color determining step for determining a display color corresponding to the display color, and a display step for displaying received information on the display screen using the determined display color.

  According to the present invention, with the above-described configuration, it is possible to easily grasp which input content is due to which user's input during real-time communication of handwritten input information by three or more users. Become.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows an overview of a communication terminal 100 according to an embodiment of the present invention. As shown in FIG. 1, the communication terminal 100 includes a touch panel 101 for displaying input contents and inputting information, a touch pen 102 used for inputting information, and a communication module 103 for performing wireless communication. It is also possible to input using a finger or the like without using the touch pen 102. Further, the communication module 103 may be configured to be completely built in the terminal and cannot be confirmed from the outside. At this time, it is an essential condition that the touch panel 101 can perform color display.

  Next, FIG. 2 is a block diagram showing a configuration example of the communication terminal 100 showing an embodiment of the present invention. As illustrated in FIG. 2, the communication terminal 100 includes an input unit 201 that receives input of information using the touch pen 102, an input processing unit 202 that processes information input to the input unit 201, and a user who is the owner of the terminal 100. Handwritten data processing unit 203 that processes the handwritten input information input from the user and the handwritten input information received from other users, and a display control unit that controls the display content based on the information processed by the handwritten input processing unit 203 204 and a display unit 205 that displays information controlled by the display control unit.

  The communication terminal 100 further includes a communication processing unit 206 for communicating with other terminals and a wireless module 207 for transmitting and receiving information.

  Next, a display screen example of the communication terminal used in the present invention will be described with reference to FIG. Reference numeral 301 in FIG. 3 denotes a message area for inputting and displaying a message. The user directly inputs a handwritten message in this area in the manner of touch input using the touch pen 102 or the like. The message area 301 displays handwritten input information received from other terminal users in real time.

  The user color defining area 302 is an area indicating which user's input content is displayed in which color. In this example, it is assumed that four users, user 11, user 12, user 13, and user 14, communicate with each other. Each user is given a user number from 1P to 4P in a communication process to be described in detail later. For example, when 1P is red, 2P is blue, 3P is yellow, and 4P is green, 302a displays red, 302b displays blue, 302c displays yellow, and 302d displays green. At this time, instead of defining each user as 1P or 2P as described above, the user name of each user, the image of the player character used by the user, or the like is displayed to display the correspondence with the character color. Also good.

  The pen input area 303 and the eraser input area 304 are used when handwritten input is performed in the message area 301 and when information once input is deleted. The pen input area 303 is ON by default at the start of communication, and the user can perform handwriting input without performing any operation on this area at the start of communication. On the other hand, when erasing the input information, the eraser input area 302 is selected by the touch pen 102 or the like, so that the pen input area 303 is turned off and the eraser input area is set to 304 ON. The state in which the pen input area 303 is ON is referred to as “pen input mode”, and the state in which the eraser input area 304 is ON is referred to as “eraser input mode”, and one of these two modes is ON. The other is always turned off while it is on. Therefore, none of the modes is ON or any mode is OFF. That is, when switching from one mode to the other mode, the input processing unit 202 performs control so that the other is unilaterally turned off when an area representing the switching destination mode is selected. . Whether it is currently set to “Pen input mode” or “Eraser input mode”, the area of the mode that is ON is surrounded by a cursor or colored, etc. It is preferable to be in a state where it can be easily confirmed.

  The character width selection area 305 is used when the user increases or decreases the line width when handwriting is input, and is selected from two types of “thin” and “thick” as shown in FIG. Alternatively, it may be possible to select from a plurality of options. In addition, by touching the “thin” on the left side of the drawing a plurality of times, the line width may be reduced step by step each time a touch is detected. At this time, when the thinnest line width is set, it is desirable to devise such as graying out the display of this area so that the user can know that it becomes invalid even if further touching is performed. If it is desired to increase the line width, the same operation is similarly performed on the “thick” area.

  The screen clear area 306 is used for erasing all the input contents displayed in the message area 301 at once, unlike the case where the input contents are partially erased in the eraser input mode. At this time, if there is a user who is inputting information, inconvenience will occur if the information being input by other users is erased. To avoid such a situation, only the information currently being input is deleted. If all other input information is selected and erased, or one user performs a screen clearing operation, all other users in communication are asked, “Can I erase the screen?” The question message screen is displayed, and when there is a user who selects “NO” even by one person, the handwritten data processing unit 203 performs processing so as to cancel the screen clear processing.

  The stamp display area 307 is an area used when a graphic or a character created in advance is displayed at an arbitrary position of the message area 301 like a stamp. As shown in FIG. 3, after selecting an arbitrary image from a plurality of images with a touch pen, selecting an arbitrary location in the message area 301 with the touch pen enables the selected image to be pasted on the location. Become. As shown in FIG. 3, the stamp display area 307 may display “▽” type marks at both ends of the area so that the image displayed in the stamp display area 307 can be switched by touching the mark. . By doing so, it is possible to select more kinds of stamp images by efficiently using the limited stamp display area 307. Of course, the line color of the stamp image displayed on the screen when this stamp function is used is also displayed in association with the user.

  Finally, the communication environment confirmation area 308 is an area for displaying the radio wave status during communication. When the radio wave condition is very bad, the user may be alerted by blinking or changing the color.

  Next, a processing flow in which communication terminals (hereinafter referred to as terminals) start communication connection will be described with reference to FIG. Here, a case where terminals perform short-range wireless communication will be described. In the terminal used in the present invention, when the user sets the “communication mode” to ON, the terminal continues to send connection requests to other terminals at all times unless the connection partner reaches the upper limit. At the same time, it is assumed that a connection request from another terminal can be received. When the terminal receives a connection request from another terminal (S401), the content of the received connection request is confirmed, and the terminal ID and user name of the connection request source are acquired (S402). In the case where an upper limit is set for a connectable terminal, a step of determining whether or not the currently connected terminal has reached the upper limit number after the process of step S401 described above is further provided, and the upper limit number has already been reached. If it is determined, the connection start process may be stopped at that stage.

  Based on the terminal ID of the connection request transmission source, the communication control unit 206 refers to the connected terminal management table shown in FIG. 5 to determine whether the connection request received this time has been transmitted from the already connected terminal. If it is determined that the connection is already established, the connection start instruction is immediately stopped (Y in S403). The connected terminal management table stores at least the terminal ID of the connected terminal, the user name, and the color information for displaying the handwritten information input by the user. The terminal connection start time or the like may be stored.

  On the other hand, if it is determined in step S403 that the connection request transmission source terminal is not included in the already connected terminals (N in S403), the terminal ID of the terminal is registered in the connection NG terminal list. It is confirmed whether there is any (S404). Here, the connection NG terminal list stores the terminal IDs of connection partners that the user does not want to communicate with, and details will be described later.

  In step S404, when the terminal ID of the connection request transmission source matches that stored in the connection NG terminal list (Y in S404), the connection start process is immediately stopped. On the other hand, if it is determined that it is not stored in the connected NG terminal list (N in S404), connection requests received for all currently connected user terminals stored in the connected terminal management table are displayed. Transfer (S405). Note that this process is omitted when the terminal that received the connection request is not communicating with any terminal, but in this example, the terminal has already been communicating with a plurality of terminals. Assuming the case, the processing when the user 14 newly makes a connection request when the users 11 to 13 already in communication connection are respectively assigned to 1P to 3P will be described. It is assumed that the users 11 to 14 use the terminals 100a to 100d, respectively, and a case where the terminal 100a used by the user 11 receives a connection request from the terminal 100d used by the user 14 will be described.

  In the communication control unit of the terminal 100a, it is determined that the terminal ID of the terminal 100d that is the transmission source of the connection request is not registered in the connected terminal management table or the connected NG terminal list, and the terminal 100a that received the connection request When the connection request is transferred to all the other terminals 100b and 100c that are currently in communication connection, a connection request reception message is displayed on the display unit 205 in all terminals including the terminal 100a that first received the connection request. (S406). The connection request received message refers to the user name of the connection request sender and is reflected in the form of “A connection request has arrived from Mr. XX. Are you allowed to connect?” It can be used as a judgment material when a person judges connection permission.

  Here, when the user who has received the connection request inputs a determination result of “YES” or “NO” from each terminal, the input result is transmitted to the user terminal 100a that has received the connection request first, and is all transmitted to the terminal 100a. When the answers from the terminals are collected, whether or not all the already connected users 11 to 13 permit the connection with respect to the communication request is totaled in the terminal 100a, and it is determined whether or not the connection is possible. (S407) At this time, if any one of the users 11 to 13 responds with “NO” as to whether or not connection is possible (N in S407), the terminal ID of the terminal that transmitted the connection request is displayed in the connection NG terminal list. The connection start process is stopped (S408). On the other hand, when all the terminals have answered “YES” (Y in S407), a connection start message is displayed for all the terminals stored in the connected terminal management table and the connection request transmission source terminal. At the same time, the connection processing is started by the communication processing unit 206 of each terminal (S409).

  In this example, all users of terminals that are already in communication connection are not allowed to start connection unless they respond with “YES” to the connection request. However, when a majority vote or even one person responds with “YES” May be allowed. In addition, as to whether or not to add to the connected NG terminal list, “add to the connected NG terminal list only when all the users of connected terminals respond to the connection request with“ NO ”” or the like, Even if a terminal is once registered in the connection NG list, even if it is a terminal that has been refused a connection request once by setting the connection NG terminal list to be cleared every few hours, a connection request is made again. It may be devised so that it can be performed.

  At the same time as the connection process is started, the terminal information of the terminal 100d is newly added to the 4P column of the connected terminal management table stored in the communication control unit 206 of the terminals 100a to 100c, and is overwritten and saved (S410). At the same time, a notification message indicating that “Mr. XX (user name of user 14) has joined the connected member” is displayed on the display unit 205 of the terminals 100a to 100c (S411).

In this example, as shown in the user color defining area 302 in FIG. 3, the display color of each user and input content is displayed by displaying the user number from 1P to 4P and the color corresponding to each user. When the user name is displayed instead of the user number such as “”, the user name is displayed with reference to the connected terminal management table. Therefore, in this case, when the user 14 is newly added as a connected member as 4P, the user name of the user 14 is newly displayed on the left side of the user color defining area 302d. Similarly, when it is desired to display not the user name but the image of the player character operated by the user, the image data of the player character to be displayed is also recorded in the connected terminal management table, and the image data is stored. It may be reflected in the user color defining area 302 by referring to it.

In this example, the terminal that first accepts the connection request is configured to be the key to cooperation with other connected terminals in the subsequent processing, but this format is only one specific example. Absent. For example, for multiple terminals connected to each other, set any one terminal as the “base unit”, receive a connection request from a new terminal, collect contact with other communicating terminals, The parent device may determine whether to permit terminal connection or the like. Further, when the communication is disconnected from the terminal group to which the parent device is connected for some reason, another terminal may be used as the parent device.

  Furthermore, although this example has been described assuming that terminals perform short-range wireless communication, the communication method is not limited to this. For example, when performing wireless or wired communication using the Internet, it is preferable that a communication network such as the Internet and a server for managing communication are provided on the communication network in addition to the communication terminal. The middle terminal management table, the connected NG terminal list, and the like are stored on the server, and processing such as connection start and end may be processed by the server. The same applies to each flow described below.

  Next, the handwritten information input flow for displaying the contents handwritten input by the user on the display unit 205 of the terminal operated by the user and transmitting the input contents to another terminal will be described with reference to FIG. At this time, for convenience, it is assumed that there are a total of four connected terminals, and the users 11, 12, 13 and 14 are operating the terminals 100a, 100b, 100c and 100d, respectively. First, when the user 11 operates the terminal 100 a to transmit handwritten input information to the other users 12 to 14, the user 11 uses the touch pen 102 to display a message area 301 on a screen displayed on the touch panel 101 of the terminal 100 a. Arbitrary information is input by handwriting (S501).

  Then, the input processing unit 202 of the terminal 100a acquires coordinate vector information indicating which position in the message area 301 the touch pen 102 is in contact with, and in what direction and at what speed (S502). Note that the process of acquiring coordinate vector information is repeated at very fine intervals of about several tens of times per second during communication connection.

  The coordinate vector information acquired in step S502 is then combined with the line width data selected by the user at the time of input in the handwritten data processing unit 203 of the terminal 100a. From what position to which position, in which direction, in what form, at what speed, with which line width, it is formed as trajectory information (S504), and the input content is displayed in what color For this, the color data assigned to 1P stored in the connected terminal management table is selected (S504). The color at this time is equal to the character color corresponding to the user displayed in the user color defining area 302. In this example, 1P is set to red, 2P is set to blue, 3P is set to yellow, and 4P is set to green. Therefore, the trajectory information formed from the information input by the user P1 is colored red and displayed in the message area 301 on the display unit 205 of the terminal 100a (S505).

  In this example, 1P, 2P and user numbers are assigned in order from the user whose connection is completed early, and the user number and character color are defined in advance such that “1P is red”. Other methods for assigning colors may be used. For example, when a new member is added to the communication connection member, an arbitrary color may be selected. At this time, if the same color as the color already selected by the user who is already a connected member is selected, the present invention will not make sense, so for the color already selected by another user It must be in a state where it cannot be selected. Furthermore, even if they are not the same, it is expected that inconvenience will occur when a color that is already very close to the color already selected by another user, such as “green” and “yellowish green”, is also expected. Prepare the same number of colors that are easily discernable as the upper limit of connection, let the user who has completed the connection quickly choose the color that he / she likes, and make it impossible for other users to select the color As a result, the user can select a color that is as close to his / her preference as possible, and can ensure a certain degree of visibility regardless of which color is selected.

  Simultaneously with step S503, the trajectory information corresponding to the input of P1 is sent from the handwritten data processing unit 203 to the communication control unit 206. Here, all the currently connected terminals are referred to by referring to the connected terminal management table. It is controlled to transmit to 100b to 100d (S506). In this example, in order to shorten the processing time difference with other terminals as much as possible, when the coordinate vector information is acquired in step S502, the trajectory information is immediately transmitted to the other terminals in communication connection. In order to reduce processing performed in each terminal on the receiving side after receiving the trajectory information described below, the trajectory is determined after the character color for displaying the trajectory information is determined in step S503. By transmitting the character color information together with the information, the processing load performed in the receiving terminal may be reduced.

  When stamp input is performed instead of handwriting input with a touch pen, notation is omitted in the flowchart of FIG. 6, but processing slightly different from the above is performed. Processing for stamp input will be described below.

  When the input processing unit 202 detects that the touch pen 102 has touched the stamp display area 307, the stamp input mode is set. When an arbitrary stamp image is selected by the touch pen 102 in the stamp input mode, the stamp image data is read in order to display the stamp image in the message display area 301. Next, when the user touches an arbitrary point in the message display area 301 with the touch pen 102, the stamp image is displayed so that the coordinate of the touched point becomes the center point of the image. At this time, since the color of the stamp image is determined by performing the same processing as when handwritten information is input, the stamp image input by the user is the same as the display color when the user performs handwriting input. Unified to color. In addition, by touching an arbitrary point on the message display area 301 with the touch pen 102 during the stamp mode (that is, each time one stamp image is displayed on the message display area 301), the stamp mode is returned to the pen input mode. Alternatively, the stamp mode may be continued until the pen input area 303 is selected.

  Next, processing when the eraser input mode is executed will be described. When the touch pen 102 comes into contact with the eraser input area 303, the eraser input mode is turned on. When the touch pen 102 touches the message display area 301 in this state, it becomes possible to erase the handwritten input information at the location where the touch pen 102 touched. At this time, you may make it provide a restriction | limiting about the object of the handwritten input information which can be erase | eliminated in eraser mode. That is, for example, handwritten information input by other users can be prevented from being erased even if erase input is performed in the eraser mode. By prescribing in this way, the user can prevent the handwritten information input by himself from being erased by other users without permission.

  That said, if the handwritten input information input by other users cannot be erased even if it is inevitable, inconvenience may arise. Therefore, here, when the handwritten input information entered by the user is erased in the eraser mode, the erased information is transmitted to all users connected to the communication, but the erase target is the handwritten input information entered by other users. In this case, it is assumed that the deletion information is reflected only on the display of the user terminal that has performed the deletion operation, and the deletion information is not transmitted to other users.

  Here, when the users 11 to 14 are in communication connection, a process when the user 11 performs an operation of deleting handwritten input information using the eraser input mode will be specifically described. When the user 11 touches the eraser input area 304 using the touch pen 102 and touches any point in the message area 301 with the touch pen 102 in the state where the eraser input mode is ON, any handwriting input is made at the touched location. When the information is already stored, that is, the color data of the display color corresponding to any one of the users 11 to 14 is stored in the coordinates of the part. The input processing unit 202 of the terminal 100a used by the user 11 determines whether the color data stored on the coordinates matches the color data assigned to display the input content of the user 11, If they match, the color data on the coordinates are erased, the erase data is transmitted to all other users 12 to 14 in communication connection, and the terminals used by the users 12 to 14 that have received the erase data The handwritten data processing units 203 of 100b to 100d transmit an instruction to reflect the erased data to the display control unit 204, and the information processed here is displayed on the display unit 205.

  On the other hand, when the color data stored on the coordinates to be erased is different from the color data assigned to display the input contents of the user 11, the erased data is not transmitted to the users 12 to 14, and the user 11 The color data on the coordinates are erased only in the terminal, and the processing result is displayed on the display unit 205.

  Next, a trajectory information reception flow when receiving handwritten input information from another terminal will be described with reference to FIG. The communication mode is ON, and a terminal that is in communication connection with another terminal is always in a state where it can receive trajectory information from the other terminal. An example will be described in which the terminal 100b operated by the user 12 receives the trajectory information regarding the input content of P1 transmitted from the terminal 100a in step S505 of FIG. The handwritten input information of the terminal 100a received via the wireless module 207 of the terminal 100b is transmitted to the communication control unit 206. Here, the terminal ID of the transmission source is identified from the received contents, and by referring to the connected terminal management table, it is determined whether the terminal ID matches any of the terminal IDs described in the connected terminal management table (S601). In the case of this example, when the transmission source terminal ID of the received information is different from any of the terminal IDs 100a, 100c, and 100d, the information reception process is immediately stopped (N in S601).

  If it is determined in step S601 that the terminal ID of the transmission source is the terminal ID of the terminal in communication (Y in S601), it is determined whether the content of the transmitted information is trajectory information (S602). When it is determined that the information is the locus information (Y in S602), the handwritten data processing unit 203 receives the terminal ID of the transmission source terminal that received the handwritten input information from which terminal the handwritten input information is transmitted. The color data corresponding to the terminal ID is determined in the connected terminal management table (S603). The determined color data is sent to the display control unit 204 together with the trajectory information and processed, and then displayed on the display unit 205 (S604). On the other hand, when it is determined that the information received in step S602 is not handwritten input information (N in S602), it is determined whether the received information is communication disconnection contact information (S605). At this time, if the received information is disconnection contact information (Y in S605), a communication disconnection process, which will be described in detail below, is performed. On the other hand, if it is determined that the received information is neither handwritten information nor disconnection contact information (N in S605), processing is performed according to the content of the information, or an error message is displayed if the content of the information cannot be grasped (S606).

  In this example, if it demonstrates using the example of the connection management table shown in FIG. 5, the user 11 will input handwritten input information into the input part 201 of the terminal 100a using the terminal 100a which is 1P and terminal ID is 0001. To do. At this time, trajectory information is generated from the coordinate vector with which the touch pen operated by the user 11 touches, and the trajectory information is transmitted to the terminals 100b to 100d together with the terminal ID (ie, 0001) of the terminal 100a via the communication control unit 206 of the terminal 100a. Sent to. The communication control unit of the terminal 100b that has received this information refers to the connected terminal management table, so that the terminal whose terminal ID is 0001 (that is, 100a) is the connected terminal, and information transmitted from this terminal. Recognizes that “red” is displayed, and transmits the received locus information together with color data to the display control unit 204. As a result, the terminal 100b can determine in what color the locus information should be displayed only by receiving the locus information and the terminal ID from the terminal 100a.

  Finally, the communication disconnection process flow for disconnecting the communication connection and leaving the terminal group in communication will be described with reference to FIG. Here, for convenience, it is assumed that the terminal 100a performs a communication disconnection process.

  When the user P1 inputs an arbitrary communication disconnection instruction to the input unit 201 of the terminal 100a (S701), the input information is transmitted to the communication control unit 206 via the input processing unit 202. When the communication control unit 206 recognizes that the content of the received instruction is a connection disconnection instruction, all communication terminals (in this case, the terminal 100b to the terminal 100d) recorded in the connected terminal management table are connected. In step S702, the terminal 100a transmits disconnection notification information indicating that the connection is to be disconnected. Further, the communication control unit 206 disconnects the communication connection of the terminal 100a (S703), clears the information stored in the connected terminal management table (S704), and clears the information stored in the connected NG terminal list. (S705) The connection disconnection process is terminated.

  FIG. 9 is a flowchart showing a disconnection contact information reception process of a terminal that has received disconnection contact information from another terminal. Here, description will be made assuming that the terminal 100b receives disconnection contact information from the terminal 100a.

When receiving the disconnection contact reception information, the communication control unit 206 of the terminal 100b goes through the same processing steps as steps S601 to S604 shown in FIG. 6, and then the information received in step S604 is the disconnection contact information from another terminal. It is recognized that there is (Y in S604). Then, the display control unit 204 creates a message screen indicating that the user P1 who is the user of the terminal 100a stops the connection and displays it on the display unit 205 (S801).

Next, the communication control unit 206 of the terminal 100b refers to the connected terminal management table to check whether there is a terminal that is currently connected to the terminal 100b other than the terminal 100a (S802), and the terminal that is currently connected to the communication. Is present, the information of the terminal 100a is deleted from the connected terminal management table, the contents of the connected management table are overwritten (S803), and the disconnected contact information receiving process is terminated.

On the other hand, if it is determined in step S802 that no terminal other than the terminal 100a is connected to the terminal 100b (N in S802), the communication connection is disconnected (S804), and the information stored in the connected terminal management table is stored. Is cleared (S805), the information stored in the connected NG terminal list is cleared (S806), and the disconnection contact information receiving process is terminated.

In addition, although the case where communication was cut | disconnected by performing operation which the user P1 intentionally cut | disconnects communication was demonstrated here, due to factors, such as deterioration of a radio wave state and the power supply of the terminal 100a falling against P1's intention It is assumed that communication is unavoidably disconnected. For example, when the connection is disconnected due to the power supply of the terminal 100a being cut off, the communication control unit 206 of the terminal 100a inputs an operation to turn off the power and creates disconnection contact information until the power supply is completely turned off. You may make it transmit to all the terminals currently communicating. On the other hand, when the communication is interrupted due to the terminal's battery running out or deterioration of the radio wave condition, it is impossible to even send the disconnection contact information to another terminal.

  For example, when four terminals 100a to 100d are communicating, when the terminal 100a suddenly becomes incapable of communication due to running out of battery, any of the terminals 100b to 100d is in communication with another terminal that is communicating. When handwritten input information or disconnection contact information is transmitted, information indicating that communication with the terminal 100a is impossible is returned to the communication control unit 206 of the terminal. Then, the communication control unit 206 of the terminal transmits information notifying that the terminal 100a cannot communicate with all other terminals in communication, and the terminals 100b to 100d are connected to the terminal from the connected terminal management table. It is assumed that the information 100a is deleted. However, there may be inconveniences if the connection is completely disconnected each time for a terminal that has become unable to communicate due to a temporary deterioration of radio wave conditions. Whether or not to delete may be given a certain amount of time, and may be set to “delete if it is determined that communication cannot be continued for more than 5 minutes”.

  In the embodiment described above, the communication terminal 100 is not specifically referred to as a terminal, but the communication function such as a mobile communication terminal such as a mobile phone, a game terminal, and a car navigation terminal is provided. It can be applied to various terminals provided.

  In addition to the above-described embodiment, for example, the following embodiment is conceivable. In the above-described embodiment, the background image of the message area 301 is not particularly touched, but the message area 301 is displayed so as to overlap, for example, a certain image by providing a hierarchy when displaying the image on the display unit 205. You may do it. That is, it is possible to display as if handwritten information is drawn on an arbitrary image.

  For example, a first display area (first hierarchy) and a second display area (second hierarchy) are provided in the display screen, and the same basic game screen is provided in the first hierarchy and the second hierarchy. Is displayed. In this case, the first hierarchy and the second hierarchy may be provided in the same single display screen. If the terminal has a plurality of display screens, the first hierarchy and the second hierarchy may be included in different display screens. A second hierarchy may be provided. For example, when the player A performs input with a touch pen or a finger on the second level of the terminal a owned by the player A, the input handwritten information is displayed on the first level. In the first hierarchy, display is performed according to the contact coordinates and trajectory information in the handwritten information input to the second hierarchy. Since the first hierarchy and the second hierarchy have the same basic game screen, to the location corresponding to the input location on the game screen of the second hierarchy in the game screen of the first hierarchy The handwritten information is displayed.

  On the other hand, also in the terminal b of the player B communicating with the player A, the handwritten information input to the second hierarchy by the player A is received, and the handwritten information is displayed on the first hierarchy of the terminal b. In the first hierarchy of the terminal b, display is performed according to the contact coordinates and trajectory information in the handwritten information input to the second hierarchy of the terminal a. In the game screen of the first hierarchy of the terminal b, the handwritten information is displayed at a location corresponding to the location input on the game screen of the second hierarchy of the terminal a. A display color defined in advance is used as the display color displayed on the terminal b. For example, when player A wants to tell player B that a “treasure chest” containing items useful for the progress of the game exists on the field map, player A is displayed on the second level of terminal a. When the “treasure chest” in the field map is filled with the touch pen, the portion corresponding to the “treasure chest” in the second hierarchy displayed in the first hierarchy of the terminal a and the terminal b is painted. Thus, by providing a hierarchy for inputting and a hierarchy for displaying the input information separately, it becomes possible to accurately convey information to the communication partner. In addition, when the second layer is a main screen for proceeding with the game, if the handwritten information is displayed on the first layer instead of the second layer, the handwritten information is an obstacle to the progress of the game. It will never be.

  Here, the second layer is a layer for input. For example, handwritten information input by the player A to the second layer is temporarily stored in the terminal a of his own terminal a (only in the first layer). It may also be displayed on the second level). By displaying on the second layer, the player can accurately determine whether or not the content of the input is correct while performing the input. Then, when a predetermined time elapses or when the player performs an operation to erase the handwritten information displayed on the second hierarchy, the handwritten information on the second hierarchy is erased. Even in this case, since the handwritten information remains in the first hierarchy, the game can proceed smoothly.

  Specifically, for example, in the case where a video game is progressed in cooperation with a plurality of people, if it becomes possible to draw handwritten information on the field map of the video game, each player can hand-draw each progress method, etc. It becomes possible to make an effective strategy by drawing, and it is also possible to clearly communicate items that are difficult to express in sentences, such as the shape of items and enemy characters and the points where they appear Therefore, it becomes possible to improve the taste of the game. In addition, when you can not reach the meeting place well, you can draw handwritten information while displaying the map information, draw the current position of each other, or the way from the main landmarks such as stations to the place It can also be used effectively by drawing.

  In addition, for example, in a quiz game or the like, when a plurality of players play online, it is determined whether the answer is correct or incorrect by performing character recognition on the answer of the quiz input by the player by handwriting, and input The player who input the answer is identified from the character color of the answer, and the player is given a score, or a plurality of players challenge a single maze at a time, and the player who reaches the goal first is shown as a line. In a game where a player competes for a privilege according to how quickly and widely fills an arbitrary area in a manner such as a camp game, when the area is completely filled, The present invention can be applied to various games, such as determining the winning or losing based on the color distribution in the area.

  In addition, for example, in various classes and presentations, students and conference attendees hold the communication terminal according to the present invention, and communicate with a display device having a large touch panel instead of a blackboard or whiteboard. By setting so that the contents entered on the large touch panel by the instructor can be displayed on each student's terminal, for example, when the text is displayed, the instructor has underlined The text displayed on each terminal will be displayed at the same time, so if you are giving a lecture in a large place, you may not be able to see the contents of the whiteboard from the back seat, or quote a long sentence Thus, it is possible to solve the problem that it is difficult to explain in the case of performing explanation.

  In the above-described embodiment, the case where the input line is colored with respect to the content input by handwriting has been described, but the line itself is not colored, but a so-called “speech balloon” is displayed in the vicinity of the player character displayed on the display. The contents of the present invention may be applied to a balloon-type chat that is displayed as if the player character is speaking by displaying information input by handwriting in the form of

  That is, the background color of the displayed balloon is displayed by the display color assigned to each player character. When a player inputs a character or a pattern to be transmitted to a terminal operated by the player and gives an instruction such as pressing a transmission button, a balloon is displayed near the character operated by the player, as if the player character is When the content input in the speech balloon is spoken, the terminal ID of the player terminal is detected in the same manner as in the above-described embodiment, so that the speech balloon is displayed using the display color assigned to the player. Determine the color.

  By doing in this way, it can be made easier to visually recognize from which player the content displayed in the balloon is emitted. However, because of the nature of the shape of the balloon, it is possible to recognize which display content is emitted from which player without performing color coding. Also, by displaying balloons, when many players input information, a plurality of balloons are displayed on the display screen, and the area of the display screen that is hidden behind the balloons increases, making it difficult to see the screen. Do not use speech bubbles because the old information will be erased when new information is entered / displayed, and the old input content cannot be confirmed. It is most desirable to use the above-described embodiment for writing information directly to the.

  According to the present invention, when handwritten input information is transmitted / received in real time by three or more users, which input content is input by which user is displayed separately for each user. Therefore, it can be easily recognized.

It is a general-view figure of the communication terminal in one Embodiment of this invention. It is a block diagram which shows the structural example of a communication terminal. It is explanatory drawing which shows the example of a screen displayed on a display part. It is a flowchart which shows the example of the process by which communication connection is started. It is an example of a table which shows a connected terminal management table. It is a flowchart which shows the example of the process which inputs handwritten input information into an input part. It is a flowchart which shows the example of the process which receives handwritten input information. It is a flowchart which shows the example of the process which performs communication disconnection. It is a flowchart which shows the example of the process which receives cutting | disconnection contact information.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Communication terminal 101 Touch panel 102 Touch pen 103 Wireless module 201 Input part 202 Input processing part 203 Handwritten data processing part 204 Display control part 205 Display part 206 Communication control part 207 Wireless module

Claims (4)

A communication terminal capable of communicating with a plurality of terminals,
An input means for a user to input information;
Communication control means for controlling communication with one or more other terminals;
For each terminal in communication, a display color defining means for defining a display color when displaying information transmitted from the terminal for each terminal ID on the display unit;
The communication control means adds the terminal ID of the terminal to the information input by the user by the input means and transmits it to another terminal,
A terminal ID of a transmission source is detected from information received from another terminal, and a display color corresponding to the terminal ID of the transmission source is determined based on the display color for each terminal ID defined by the display color defining means. Display color determining means;
A communication terminal comprising display means for displaying received information on a display screen using a determined display color. The input means is configured integrally with a display screen, and the user can input handwritten information on the display screen with a touch pen or a finger,
In the input of the handwritten information, by further detecting the contact coordinates of the touch pen or the finger and the display screen periodically, further provided trajectory information generating means for generating the handwritten information as trajectory information of the contact coordinates,
The display means sequentially updates the display contents by displaying the trajectory information generated by the trajectory information generation means based on the handwritten information input by the user of the terminal so as to overlap the already displayed handwritten information. With
By exchanging the trajectory information newly input to each terminal with all the terminals in communication with the communication control means,
2. The communication terminal according to claim 1, wherein the display unit can display the trajectory information received from all other terminals in communication on the display screen of the terminal in real time. . The display means manages the display content by dividing it into a first layer for displaying the handwritten information and a second layer for displaying other information, so that the handwritten information is superimposed on an arbitrary background screen. The communication terminal according to claim 2, wherein the communication terminal can be displayed. A communication method for communicating with a communication terminal capable of communicating with a plurality of terminals and causing a communication terminal to display information input from another terminal on a display screen,
When a communication connection with another terminal is started, for each terminal, a display color defining step for defining a display color when displaying information transmitted from the terminal for each terminal ID on the display unit;
A display for detecting a terminal ID of a transmission source from information received from another terminal and determining a display color corresponding to the terminal ID of the transmission source based on the display color for each terminal ID defined in the display color defining step A color determination step;
A display step of displaying the received information on the display screen using the determined display color;
A display method comprising: