JP2015090607A - Electronic tag conference terminal and control method of the same, electronic tag conference terminal program, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem in which: a terminal having low screen resolution or small screen size cannot display all electronic tags used in an electronic tag conference at a time, and a user has had difficulty in recognizing information on the electronic tags outside a display area, which has reduced convenience.SOLUTION: There is provided an electronic tag conference terminal that holds one or more electronic tags including information on a position on a virtual board; performs clustering on the basis of the positions of the electronic tags to create electronic tag clusters; calculates positions of the electronic tag clusters on the virtual board; arranges objects corresponding to the electronic tags and the electronic tag clusters on the virtual board according to set display conditions; and displays, in displaying a part of the area of the virtual board, a shortcut object to the position of an electronic tag cluster to which electronic tags not arranged in the displayed area belongs, as an object corresponding to the electronic tag cluster.

Description

  The present invention relates to an electronic sticky note conference terminal and a control method thereof, an electronic sticky note conference terminal program, and a storage medium.

  Web conference systems and video conference systems are widely known as conference systems for conferencing with people at remote locations. As one type of these conference systems, there is an electronic sticky note conference system that incorporates an idea emergence conference method such as brainstorming.

  In the electronic sticky note conference system, each terminal used by a participant (hereinafter referred to as an electronic sticky note conference terminal) associates an image representing an idea with an electronic sticky note and arranges them on a virtual board (hereinafter referred to as a global board). This image can be captured when the electronic tag conference terminal shoots a physical tag with a built-in camera. The electronic sticky note conference terminal shares the electronic sticky note with other electronic sticky note conference terminals via the network. Each electronic sticky note conference terminal displays an electronic sticky note, for example, as an electronic sticky note widget (Widget) on a board surface (hereinafter referred to as a local board) displayed by itself. Participants in the electronic sticky note conference (hereinafter referred to as conference participants) can operate the electronic sticky note with other electronic sticky note conference terminals via the network by operating the electronic sticky note widget. Thereby, the electronic sticky note created at each base can be viewed and operated from any base.

  Here, in an electronic sticky note conference, there is a case where the screen resolution is low (the total number of pixels constituting the display screen is small), and a mobile terminal such as a mobile phone, a smartphone, or a tablet is used to participate in the conference.

  As a conventional technique for displaying a large amount of information on a terminal having a low screen resolution, there is an information processing apparatus that obtains an image representing a cluster by performing hierarchical clustering on a plurality of images with coordinate information and displays the image on a map. It is known (see, for example, Patent Document 1). In this case, clusters that satisfy a predetermined condition among clusters created by hierarchical clustering are determined as the same group. Further, control is performed so that the clusters belonging to the group are displayed on the scale map based on the coordinate information of the clusters belonging to the group.

JP 2010-140383 A

  In the prior art, a symbol on a map in which coordinate information of each image is predetermined is targeted. On the other hand, the electronic sticky note conference terminal used in the electronic sticky note conference system not only displays the electronic sticky note, but also needs to accept operations such as movement on the electronic sticky note. However, the portable terminal has a low screen resolution or a small display screen physical size. When displaying all information on the global board on a local board with a portable terminal, if the display resolution is insufficient, lowercase letters and thin lines will be lost. Or, even if the display resolution is sufficient, if the display screen is small, there is a problem that it becomes difficult for a participant to visually recognize the contents. This problem means that it becomes difficult to select and operate not only the electronic sticky note but also the electronic sticky note. In a portable terminal, in order to improve visibility and operability, a part of the information on the global board is cut out on the local board and enlarged in some cases and displayed. At this time, two new issues arise in the terminal.

  The first problem is that an electronic sticky note that can be grasped by a conference participant using a portable terminal becomes partially and locally. Participants using a portable terminal do not see the entire global board. Therefore, the conference participant manually sorts the electronic sticky notes by relying on the electronic sticky note information displayed on the local board and the memory. As a result, it is easy for the conference participants to cause problems such as separating related electronic sticky notes into separate chunks or overlooking despite having more highly related electronic sticky notes.

  A second problem is that when a conference participant using a portable terminal moves an electronic sticky note, a destination candidate located outside the local board cannot be known. In some cases, an electronic sticky note placed in the local board is completely unrelated to other electronic sticky notes in the local board. In this case, the conference participant wants to place the electronic sticky note outside the local board. However, in the prior art, the conference participant cannot grasp the electronic sticky note outside the local board. As a result, the conference participant has to search for a destination to move while switching display conditions. Furthermore, even if the destination is found, it is necessary to return to the display conditions for displaying the electronic sticky note that was about to be moved again.

  As described above, simply cutting out a part of information on the global board on the local board and displaying it in an enlarged manner in some cases causes a new problem of visibility and operability.

  In order to solve the above problems, the present invention has the following configuration. That is, an electronic sticky note conference terminal in which one or more electronic sticky notes are arranged on a virtual board and information is shared among a plurality of terminals, and one or more electronic devices including position information on the virtual board Holding means for holding a sticky note, clustering means for generating an electronic sticky note cluster by performing clustering based on the position of the electronic sticky note, and calculating the position of the electronic sticky note cluster on the virtual board, the electronic sticky note, and Display means for arranging and displaying an object corresponding to the electronic sticky note cluster on the virtual board according to a set display condition; and an operation means for receiving an operation on the object displayed on the display means; And when the display means displays a partial area of the virtual board, As an object to respond, to display a shortcut object to the position of the electronic sticky note clusters arranged non electronic sticky note belongs in the region being the display.

  According to the present invention, even a terminal having a low-resolution display unit can improve the convenience of user operation in an electronic sticky note conference.

The figure which shows the structural example of the network of an electronic sticky note conference system. The figure which shows the structural example of the hardware of a dedicated terminal used as an electronic sticky note conference terminal. The figure which shows the structural example of the software module of an electronic sticky note conference terminal. The flowchart of an electronic sticky note conference terminal. The figure which shows the example of an electronic sticky note meeting setting dialog. The figure which shows an example of electronic sticky note reception update information. The figure which shows an example of electronic tag information. The figure which shows an example of an electronic sticky note cluster. The figure which shows the example of arrangement | positioning of the electronic sticky note widget and a shortcut widget in a local coordinate system. The flowchart of a widget arrangement | positioning process. The figure which shows the example of a calculation result of the arrangement | positioning coordinate to the local coordinate system of an electronic sticky note widget. The figure which shows the example of a calculation result of the arrangement | positioning coordinate to the local coordinate system of a shortcut widget. The flowchart of intersection detection. Schematic diagram of intersection detection. The figure which shows the example of a display at the time of a mini map layout. The figure which shows the example of a calculation result of the arrangement | positioning coordinate of the shortcut widget at the time of a mini map layout. The figure which shows an example of a shortcut widget display setting dialog. The flowchart of a display means change of a widget. The figure which shows the example of a calculation result of the display size of a shortcut widget. The figure which shows the example of a calculation result of the size of a shortcut widget, and a display example. The schematic diagram of the timing determination process which displays the display image of an electronic sticky note widget. The flowchart in the case of arrange | positioning a shortcut widget out of a frame. The schematic diagram in the case of arranging a shortcut widget outside a frame. The figure which shows the example of a calculation result at the time of arranging a shortcut widget out of a frame. Flowchart of shortcut widget overlap removal. Schematic diagram of shortcut widget overlap removal. The flowchart which arrange | positions an empty area shortcut widget. Schematic diagram when placing a free space shortcut widget. The figure which shows the example of a calculation result at the time of arrangement | positioning an empty area shortcut widget. The figure which shows the example of a display of a meta information widget.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In this specification, for the sake of convenience, the expression “electronic sticky note conference system” is used. However, any equivalent information sharing system is not limited to “electronic sticky note”. An object (electronic sticky note widget) corresponding to an electronic sticky note is arranged on a virtual board and information sharing is performed.

[Network configuration]
FIG. 1 shows a network configuration example for realizing the electronic sticky note conference system. As the electronic sticky note conference terminal, in addition to a dedicated terminal in which the electronic sticky note conference terminal program is installed, a general mobile phone, smartphone, or PC in which the electronic sticky note conference terminal program is installed can be used as the electronic sticky note conference terminal.

  A network configuration example of an electronic sticky note conference system using P2P (Peer-to-Peer) type connection is shown in FIG. Each electronic sticky note conference terminal serves as a servant to transmit and receive electronic sticky note update requests to each other, thereby realizing information synchronization. A servant is a network node in a P2P type connection. This network configuration is suitable for small-scale meetings with a small number of electronic sticky note conference terminals. When an electronic sticky note update request is made at the electronic sticky note conference terminal 111, the electronic sticky note conference terminal 111 is immediately notified that an electronic sticky note update request has been made to the electronic sticky note conference terminals 112 and 113. The Similarly, when an electronic sticky note update request is made at the electronic sticky note conference terminal 112, an electronic sticky note update request is made from the electronic sticky note conference terminal 112 to the electronic sticky note conference terminals 111 and 113. Immediate notification. As described above, this network configuration has an advantage of reducing the time lag (delay) of information synchronization between electronically connected electronic sticky note conference terminals. On the other hand, in the network configuration as shown in FIG. 1 (A), as the number of electronic tag conference terminals participating in the electronic tag conference increases, the amount of network transfer for information sharing increases accordingly.

  An example of a network configuration of an electronic sticky note conference system using a server client type connection is shown in FIG. Information between each electronic sticky note conference terminal is received by the server PC 121 receiving an electronic sticky note update request from each of the electronic sticky note conference terminals 122 to 125 and transmitting the received electronic sticky note update request to another electronic sticky note conference terminal. Realize synchronization. A network configuration as shown in FIG. 1B is suitable for a medium-sized electronic sticky conference where a large number of people participate using shared electronic sticky note conference terminals installed inside and outside the company.

  For example, when a request for updating an electronic tag is made at the electronic tag conference terminal 122, the request for updating the electronic tag is held in the electronic tag conference terminal 122. Then, at a predetermined timing, the electronic sticky note conference terminal 122 transmits an electronic sticky note update request to the server PC 121. The server PC 121 holds the transmitted update request for the electronic sticky note and notifies the electronic sticky note conference terminal 122 of the update request for the electronic sticky note notified from other than the electronic sticky note conference terminal 122. Thereafter, when the electronic sticky note conference terminal 125 existing at another base transmits an electronic sticky note update request to the server PC 121 at another timing, the server PC 121 receives the electronic sticky note update request from the electronic sticky note conference terminal 125. At the same time, the electronic sticky note conference terminal 125 is notified of an electronic sticky note update request notified from the previous electronic sticky note conference terminal 122.

  In this way, at each predetermined timing, each electronic sticky note conference terminal transmits an electronic sticky note update request made within itself to the server PC 121, and at the same time, an electronic sticky note update request made at an electronic sticky note conference terminal other than itself. Is received from the server PC 121. The network configuration shown in FIG. 1B has an advantage that the network transfer amount can be easily suppressed by adjusting the polling interval between the server PC 121 and the electronic sticky note conference terminal. On the other hand, the transmission of information from the electronic sticky note conference terminal to the server PC 121 and the transmission from the server PC 121 to the electronic sticky note conference terminal require twice as long as the polling interval. As a result, the time lag of information synchronization between the electronic sticky note conference terminals is larger in the server client type connection than in the P2P type connection.

  FIG. 1C shows a network configuration example of a hybrid electronic sticky note conference system using both P2P type connection and server client type connection. The electronic sticky note conference terminals 132 and 135 directly connected to the server PC 131 transmit and receive electronic sticky note update requests via the server PC 131. The electronic sticky note conference terminals 133 and 134 connected in a P2P manner to the electronic sticky note conference terminal 132 transmit and receive electronic sticky note update requests to each other as a servant. The electronic sticky note conference terminals 136 and 137 connected in a P2P manner to the electronic sticky note conference terminal 135 transmit and receive electronic sticky note update requests to each other as servants.

  The network configuration shown in FIG. 1C is suitable for a large-scale electronic sticky note conference in which many electronic sticky note conference terminals participate in the electronic sticky note conference terminal. For example, a large number of people participate in a shared electronic sticky note conference terminal in the company and a shared electronic sticky note conference terminal in a satellite office outside the company. This is a case where an electronic sticky note conference terminal is used.

  For example, consider a configuration in which an electronic sticky note conference is held between two sites. At the first base, the electronic sticky note conference terminal 133 and the electronic sticky note conference terminal 134 are used for operation / viewing assistance in an in-house conference room where the electronic sticky note conference terminal 132 is placed. At the same time, in the second base, the electronic sticky note conference terminal 136 and the electronic sticky note conference terminal 137 are used for operation / viewing assistance in the conference room of another satellite office where the electronic sticky note conference terminal 135 is placed. In this case, when all the electronic sticky note conference terminals 132 to 137 are connected by P2P type connection, an electronic sticky note update request made by one electronic sticky note conference terminal is transmitted to five electronic sticky note conference terminals each time. Therefore, the network transfer amount increases. On the other hand, if all the electronic sticky note conference terminals 132 to 137 are connected by the server PC 131, even if an electronic sticky note update request at the same site is received, it cannot be reflected unless it is received from the server PC 131, and the time lag increases. Therefore, as in the hybrid type shown in FIG. 1 (C), the bases are connected by server client connection, and the bases are connected by P2P connection, thereby reducing the amount of network transfer between the bases. Information synchronization time lag can be reduced.

  In the present invention, any network configuration example of P2P type connection, server client type connection, or hybrid type connection shown in FIGS. 1A to 1C can be used. The following description is based on a network configuration example of the electronic sticky note conference system using the server client type connection shown in FIG.

In the present embodiment, it is assumed that an electronic sticky note conference is held on the assumption of the following conditions.
1) The electronic sticky note conference is started on the server PC 121 in response to a request from the electronic sticky note conference terminal 122 arranged at a certain base. The electronic sticky note conference terminal 122 participates in the electronic sticky note conference on the server PC 121.
2) The electronic sticky note conference terminals 123 and 124 placed at a different location from the location where the electronic sticky note conference terminal 122 is placed are connected to the server PC 121 and participate in the electronic sticky note conference.
3) A plurality of electronic sticky notes were created on the global board at the electronic sticky note meeting by the electronic sticky note meeting terminals 122, 123, and 124 participating in the electronic sticky note meeting.
4) The electronic sticky note conference terminal 125 is about to join a new electronic sticky note conference.

  Under such a premise, the explanation will be made by paying attention to the display on the screen of the electronic sticky note conference terminal 125 and the reception of the operation.

  The electronic sticky note conference uses two coordinate systems. One is a coordinate system on a global board shared by all electronic sticky note conference terminals participating in the conference, that is, a global coordinate system. In this embodiment, coordinates in the global coordinate system are expressed in units of “block”. The other is a coordinate system on a local board that each electronic sticky note conference terminal participating in the conference has independently, that is, a local coordinate system. In this embodiment, the coordinates in the local coordinate system are expressed in units of “pixel”. The electronic sticky note on the global coordinate system is converted into the local coordinate system in accordance with the display conditions corresponding to the electronic sticky note conference terminal, and is displayed on the display unit of the electronic sticky note conference terminal.

[Hardware configuration]
A hardware configuration example of a dedicated terminal used as an electronic sticky note conference terminal is shown in FIG. In the electronic sticky note conference terminal, a CPU 201, a RAM 202, and a ROM 203 are connected via a main bus 200. Further, the CPU 201 and control modules such as the external device controller 204 and the internal device controller 205 are connected via the main bus 200. A RAM 202 is a storage unit, and is a readable / writable memory for data required when the CPU 201 executes a program. A ROM 203 is a storage unit, and is a read-only memory for reading data necessary for the CPU 201 to execute a program.

  The external device controller 204 controls external devices such as the touch panel display 211, the external video output interface 212, and the built-in camera 213. The touch panel display 211 is a display unit for displaying information to the conference participants and receiving operations of the conference participants. The external video output interface 212 is an interface for connecting an external video display device. The built-in camera 213 is an imaging unit and is built in the electronic sticky note conference terminal.

  The internal device controller 205 controls the internal storage device 221 and the network module 222. The internal storage device 221 is a secondary storage device for storing data. The network module 222 is connected to the network via the wireless communication antenna 223, and transmits / receives to / from another device on the network.

Software configuration
FIG. 3 shows an example of the software configuration of the electronic sticky note conference terminal program executed by the electronic sticky note conference terminal according to the present invention. Here, only the relationship will be described briefly, and details will be described later according to the flowchart shown in FIG. The electronic sticky note conference terminal program is composed of five software modules, that is, blocks.

  The electronic sticky note conference setting management block 310 manages electronic sticky note conference setting information 311 that is a setting of an electronic sticky note conference in which the electronic sticky note conference terminal participates. The electronic sticky note conference setting information 311 includes information necessary for participation in the conference, such as the IP address of the connection destination device, the electronic sticky note conference name, and the user name and password of the conference participant. The electronic sticky note conference setting dialog 313 is a screen for accepting input of conference participation conditions. The electronic sticky note conference setting reception unit 312 stores the conference participation condition input in the electronic sticky note conference setting dialog 313 in the electronic sticky note conference setting information 311. The electronic sticky note conference setting reception unit 312 further inquires of the connection destination device via the network module 222 whether or not the electronic sticky note conference terminal can participate in the designated electronic sticky note conference. When the electronic sticky note conference terminal can participate in the designated electronic sticky note conference, the electronic sticky note conference setting management block 310 notifies each block constituting the electronic sticky note conference terminal program of the start of participation in the conference.

  The electronic sticky note information management block 320 manages the electronic sticky note information 325. The electronic sticky note information 325 is information on the electronic sticky note used in the electronic sticky note conference. The electronic sticky note reception update information 323 is update information of the electronic sticky note received from the connection destination device. The electronic sticky note transmission update information 324 is electronic sticky note update information to be transmitted to the connection destination device. The electronic sticky note information update unit 322 updates the information of the electronic sticky note information 325 and adds the update information included in the electronic sticky note transmission update information 324 in accordance with the electronic sticky note update request from the event management unit 341.

  The electronic tag information transmission / reception unit 321 transmits / receives electronic tag update information to / from the connection destination device via the network module 222. The electronic sticky note information transmission / reception unit 321 transmits an electronic sticky note information request accompanied by the electronic sticky note transmission update information 324 to the connection destination device, and receives the electronic sticky note reception update information 323 from the connection destination device. The electronic sticky note information transmitting / receiving unit 321 updates the electronic sticky note information 325 based on the electronic sticky note reception update information 323. When the electronic sticky note conference terminal is connected to the connection destination device in a server client type, the electronic sticky note information transmitting / receiving unit 321 performs electronic sticky note transmission / reception processing at regular intervals. When the electronic sticky note conference terminal is connected to the connection destination device in the P2P type, the electronic sticky note information transmission / reception unit 321 participates in the electronic sticky note conference at a timing when an update request for the electronic sticky note comes from the event management unit 341. An electronic sticky note transmission / reception request is transmitted to another electronic sticky note conference terminal. When the electronic tag information transmission / reception unit 321 receives an electronic tag transmission / reception request from another device, the electronic tag information transmission / reception unit 321 performs electronic tag transmission / reception processing.

  The electronic sticky note cluster information management block 330 manages the electronic sticky note cluster information 332. The electronic sticky note cluster information 332 is cluster information that is a result of clustering electronic sticky notes used in the electronic sticky note conference. The electronic sticky note cluster information 332 includes the identifier of the electronic sticky note associated with the electronic sticky note cluster and the central coordinates (centroid coordinates) of the associated electronic sticky note. The electronic sticky note clustering unit 331 clusters the electronic sticky notes in the electronic sticky note information 325 based on the global coordinates, and associates the electronic sticky note cluster with the electronic sticky note. By this association, the coordinates of the centroid of the electronic sticky note cluster are also derived. In the following description, the centroid coordinates of the electronic sticky note cluster are referred to as “electronic sticky note cluster coordinates”.

  The information display / operation reception block 340 provides a user interface for conference participants. The information display / operation reception block 340 displays an electronic sticky note widget and a shortcut widget to the conference participants. In the present embodiment, the shortcut widget is an object (shortcut object) for performing a shortcut to a predetermined position. At the same time, the information display / operation reception block 340 receives an operation on the electronic sticky note widget and the shortcut widget from the conference participant.

  The local board 350 includes an electronic sticky note widget included in the electronic sticky note widget group 360, a shortcut widget included in the shortcut widget group 370, and various buttons. The display condition 351 is information on display conditions including a display origin and an enlargement ratio when the widget placement unit 342 places an electronic sticky note widget or a shortcut widget on the local board 350. The exit button 352 is a widget that is arranged on the local board 350 and receives an exit instruction from the electronic sticky note conference. The setting button 353 is a widget that is arranged on the local board 350 and receives a setting instruction.

  The electronic sticky note widget group 360 is a set of widgets that express each of the electronic sticky note information 325. The shortcut widget group 370 is a set of widgets representing each of the electronic sticky note cluster information 332. Details of the operation of the shortcut widget will be described later in conjunction with the drawings.

  Based on the display condition 351, the widget placement unit 342 places the electronic sticky note widget included in the electronic sticky note widget group 360 on the local board 350. Further, the widget placement unit 342 places the shortcut widgets included in the shortcut widget group 370 on the local board 350 based on the electronic sticky note cluster information 332. Based on the input operation from the conference participant received via the touch panel display 211, the event management unit 341 performs an electronic sticky note, a display origin movement process, and the like according to the target object of the input operation.

  The shortcut widget display setting management block 380 performs display settings for the shortcut widget. The shortcut display condition 381 is a display condition of the shortcut widget. The shortcut widget display setting dialog 382 is a screen for accepting shortcut widget display condition settings from conference participants. The shortcut widget display setting reception unit 383 reads the shortcut widget display setting input in the shortcut widget display setting dialog 382 and stores it in the shortcut display condition 381.

<First embodiment>
Hereinafter, an example of an electronic sticky note conference system according to the present invention will be described with reference to the drawings. In this embodiment, the size of the global board is 1024 blocks wide and 568 blocks high. Further, as the display condition 351, the size of the local board 350 is set to a width of 640 pixels, a height of 355 pixels, and an initial enlargement ratio is set to 1.0 pixel / block.

  The center coordinate of the local board 350 on the global board (hereinafter, local board display origin) is set to (512, 284) block. Also, a display frame indicating a reference for the position where the shortcut widget is displayed is used as a shortcut widget display frame, and the width is calculated as 20 pixels from the end of the display area. The shortcut display condition 381 is a fixed condition. As the shortcut display condition 381, the shortcut widget is “always displayed”. The image displayed by the shortcut widget is the display image of the electronic sticky note widget that is closest to the electronic sticky note cluster among the associated electronic sticky note clusters. Details of the distance here will be described later. The size of the shortcut widget is 38 pixels.

[Processing flow]
FIG. 4 shows a flowchart example of the electronic sticky note conference terminal program according to the present invention. The CPU 201 loads a program stored in the internal storage device 221 or the ROM 203 onto the RAM 202, and the CPU 201 refers to and executes the program on the RAM 202, whereby the processing shown in this flowchart is executed.

  The electronic sticky note conference setting management block 310 starts processing in the electronic sticky note conference setting reception unit 312. The electronic sticky note conference setting reception unit 312 displays an electronic sticky note conference setting dialog 313, and performs participation processing in the electronic sticky note conference based on the user input (S401). An example of the electronic sticky note conference setting dialog 313 is shown in FIG. The electronic sticky note conference setting dialog 313 includes a connection destination combo box 501, a connection destination conference combo box 502, a participant name text box 503, a password text box 504, and an OK button 510. The connection-destination combo box 501 accepts designation of a connection-destination device in which a conference to be joined is held. In the case of a network configuration of P2P type connection, any electronic sticky note conference terminal including the electronic sticky note conference terminal that started the electronic sticky note conference is designated as a connection destination device. In the case of a server client type connection, the server PC is designated as a connection destination device. In the case of a hybrid connection, a server PC or an electronic sticky note conference terminal is designated as a connection destination device.

  The connection destination conference combo box 502 accepts designation of a conference to be joined from conferences held in the connection destination device. A participant name text box 503 and a password text box 504 accept designation of the user name and password of the conference participant when the conference participant participates in the electronic sticky note conference. The OK button 510 receives a setting end notification from the conference participant as a click operation event, and notifies the electronic sticky note conference setting reception unit 312.

  When the electronic sticky note conference setting reception unit 312 detects an event of a click operation on the OK button 510, the content set in the electronic sticky note conference setting dialog 313 is stored in the electronic sticky note conference setting information 311. Then, the electronic sticky note conference setting reception unit 312 sends a conference participation request to the connection destination device specified in the connection destination combo box 501 based on the electronic sticky note conference setting information 311 via the network module 222. This process is an authentication process via a general network, and details are omitted here.

  When the meeting participation request is approved by the connection destination device, the electronic sticky note conference setting reception unit 312 activates the electronic sticky note information management block 320, the electronic sticky note cluster information management block 330, and the information display / operation reception block 340.

  The electronic sticky note information management block 320 starts processing of the electronic sticky note information transmitting / receiving unit 321 and the electronic sticky note information updating unit 322. The electronic sticky note information transmission / reception unit 321 transmits the electronic sticky note transmission update information 324 to the connection destination device, receives the electronic sticky note reception update information 323 as a response, and starts transmission / reception of the electronic sticky note information 325 based on this (S402). ).

  An example of the electronic sticky note reception update information 323 is shown in FIG. Here, only a part of the electronic tag reception update information 323 is shown. The electronic sticky note reception update information 323 includes an electronic sticky note update ID, a target electronic sticky note ID, an update type, and an update parameter. The electronic tag update ID is an identifier used to acquire difference information from the previous acquisition when acquiring information from the electronic tag conference terminal. The electronic sticky note update ID is arbitrarily set as a new event at the timing of the event received by the connection destination device. The target electronic tag ID is an identifier indicating which electronic tag is targeted by the electronic tag ID. In the following, in order to simplify the description, identifiers such as an electronic sticky note ID and an electronic sticky note update ID and the description number of the electronic sticky note are matched to perform the following description.

  The update type indicates which content is updated. As a specific value of the update type, for example, new creation of an electronic tag, change of a display image, size change on global coordinates, or coordinate change on global coordinates are designated. The update parameter is a parameter that designates an attribute for the update type of the target electronic sticky note. For example, in the case of electronic sticky note update information related to new creation of an electronic sticky note or update of a display image, the image data is an update parameter. Here, the image data is expressed by a description such as “701.jpg”. In the case of electronic sticky note update information whose size is changed in global coordinates, the width and height of the size are update parameters. In the case of electronic tag update information that updates global coordinates, the coordinates of the movement destination are update parameters.

  For example, the electronic sticky note update information 601 is electronic sticky note update information for creating the electronic sticky note 701 with the display image “701.jpg”. The electronic sticky note update information 602 is electronic sticky note update information in which the size on the global coordinates of the electronic sticky note 701 is (36, 36) block. The electronic sticky note information whose electronic sticky note update ID is “603” is electronic sticky note update information that moves the global coordinates of the electronic sticky note whose electronic sticky note ID is “701” to (20, 80) block. Hereinafter, similarly, the other means electronic sticky note update information.

  The electronic sticky note transmission / reception process performed by the electronic sticky note information transmission / reception unit 321 preferably transmits / receives only necessary difference information based on the electronic sticky note update ID. The flow of this process will be briefly described. The connection destination device holds electronic tag update information (for example, electronic tag update information 601 to 606). The newly joined electronic sticky note conference terminal performs the first electronic sticky note transmission / reception process. The electronic sticky note information transmission / reception unit 321 of the electronic sticky note conference terminal requests the connected device to acquire electronic sticky note update information. The connection destination device receives the electronic sticky note update information acquisition request, and notifies the electronic sticky note information transmission / reception unit 321 of the held electronic sticky note update information. The electronic sticky note information transmitting / receiving unit 321 confirms that the maximum electronic sticky note update ID in the electronic sticky note update information is “606”, and sets this value as the acquired electronic sticky note update ID. Thereafter, another electronic sticky note conference terminal registers electronic sticky note update information (here, electronic sticky note update information 607 to 612).

  In the second electronic sticky note transmission / reception process of the electronic sticky note conference terminal, the electronic sticky note information transmission / reception unit 321 designates “606” as the acquired electronic sticky note update ID to acquire the electronic sticky note update information, and updates the electronic device with the electronic sticky note. Request information. The connection destination device notifies the electronic sticky note information transmission / reception unit 321 of electronic sticky note update information 607 to 612 which are electronic sticky note update information generated after the already acquired electronic sticky note update ID. As a result, it is possible to synchronize only the electronic tag update information that has been updated since the previous acquisition of the electronic tag update information between the electronic tag conference terminal 113 and the connection destination device.

  An example of the electronic sticky note information 325 created based on the received electronic sticky note reception update information 323 is shown in FIG. The electronic sticky note has an electronic sticky note ID, a display image, a size in the global coordinate system, and coordinates in the global coordinate system. Referring to FIG. 6, there are two electronic sticky note update information 602 and 608 as electronic sticky note update information for the global coordinates of the electronic sticky note 701. The newer electronic sticky note update information is, the larger the value of the electronic sticky note update ID is. Therefore, the electronic sticky note 701 is arranged at the coordinates (20, 20) block indicated by the electronic sticky note update information 608 generated later. Electronic sticky note information 325 is formed based on the electronic sticky note update information included in the electronic sticky note reception update information 323. By periodically executing the electronic sticky note transmission / reception process, the electronic sticky note information 325 can be shared with another electronic sticky note conference terminal participating in the electronic sticky note conference.

The electronic sticky note clustering unit 331 performs clustering based on the global coordinates of the electronic sticky notes 701 to 732 and creates electronic sticky note cluster information 332 (S403). As an example of clustering, a K-means method that is a non-hierarchical clustering method can be used. The K-means method divides data into an arbitrary number of clusters based on the proximity relationship between the coordinates of each data by the following iterative calculation.
Step 1) The number of clusters is determined to an arbitrary value.
Step 2) The central coordinates of each cluster are initialized with a random number or the like.
Step 3) Associate each data with the cluster having the nearest center coordinate.
Step 4) Move the central coordinates of each cluster to the center of the coordinates of the associated data.
Step 5) If the amount of movement of the central coordinates in Step 4 is small, the calculation is terminated. If the amount of movement is large, the process returns to Step 3 again.

  When implementing the present invention, a clustering method other than the K-means method may be used. In this example, the K-means method arbitrarily determined as “7” as the number of clusters to be divided was used. As another clustering method, for example, a means for automatically estimating the number of clusters based on the data distribution such as the X-means method may be used.

  In the K-means method, there are a method in which the initial arrangement determining means for cluster coordinates determines the initial coordinates by random numbers, a method based on target data selected by random numbers, and some other variations. Depending on the difference between the initial arrangement determining means and the initial value of the random number, the clustering result for the same data may be different. Note that the following example is only one execution result obtained with a certain initial value.

An example of the electronic sticky note cluster is shown in FIG. FIG. 8A shows an electronic sticky note cluster expressed in a table format. FIG. 8B shows the distribution of electronic sticky notes and electronic sticky note clusters on the global board. For example, as shown in FIG. 8A, electronic sticky notes 712, 713, 714, 715, 730, and 731 are associated with the electronic sticky note cluster 801. At this time, the global coordinate (X, Y) of each electronic sticky note cluster is an average value of the global coordinates of the associated electronic sticky note. For example, the global coordinates of the electronic tag cluster 801 are obtained as follows.
(X, Y) = Average {(550.000, 390.000), (580.000, 460.000), (510.000, 410.000), (470.000, 410.000), (500 .000, 470.000), (450.000, 450.000)} = (510.000, 431.667) [block]
The other electronic sticky note clusters 802 to 807 are similarly calculated. This process may be executed again due to an operation such as moving an electronic sticky note. In this case, it is possible to avoid a significant change from the previous clustering result by starting the clustering process with the previous clustering result as an initial value.

  The widget placement unit 342 places and displays an electronic tag widget and a shortcut widget based on the electronic tag information 325 and the electronic tag cluster information 332 (S404). Details of the widget arrangement processing will be described with reference to FIGS.

  FIG. 9 shows an arrangement example of the electronic sticky note widget and the shortcut widget in the local coordinate system. The origin is the upper left origin 991. The display area 992 is determined based on the width 640 pixels and the height 355 pixels of the local board 350. The (320.000, 177.500) pixel which is the center of the display area 992 is set as a local board center coordinate 993. The shortcut widget display frame 994 shown in FIG. 9B has (20.000, 20.000) to (620.000, 335.000) pixels narrowed from the display area 992 by 20 pixels in the vertical and horizontal directions of the shortcut display width. It is an area.

  A flowchart of the widget arrangement process is shown in FIG. Along with this flowchart, electronic tag widgets 901 to 932 and shortcut widgets 971 to 977 are arranged. The widget arrangement unit 342 arranges / updates the electronic tag widget associated with each electronic tag (S1001). That is, the widget placement unit 342 places the electronic sticky note widget at coordinates obtained by mapping the coordinates on the global coordinates of each electronic sticky note to the coordinates of the local coordinate system.

  FIG. 11 shows an example of the calculation result of the arrangement coordinates of the electronic sticky note widget in the local coordinate system. FIG. 12 shows an example of the calculation result of the arrangement coordinates of the shortcut widget in the local coordinate system. For example, the electronic sticky note 701 is arranged at (20, 20) block in the global coordinate system. When only the local board display origin (512, 284) block is moved in the minus direction, a shift amount (−492, −264) block from the center coordinate in the global coordinate system is obtained. When this shift amount is multiplied by a display magnification of 1.0 pixel / block, a shift amount (−492, −264) pixel from the center coordinate in the local coordinate system is obtained. Further, when only the central coordinates (320, 177.5) pixel in the local coordinate system is moved in the plus direction, local coordinates (-172, -86.5) pixel are obtained. On the other hand, the size (36 × 36) pixel in the local coordinate system is obtained by multiplying the size (36 × 36) block on the global coordinates of the electronic sticky note by the display magnification of 1.0 pixel / block. The local coordinates and size in the local coordinate system of the electronic tag widgets 902 to 932 corresponding to the electronic tag 702 to 732 are also obtained in the same manner.

The widget placement unit 342 obtains a boundary box on the local coordinates of each electronic sticky note cluster (S1002). The widget placement unit 342 obtains a boundary box on the local coordinate system of the electronic sticky note cluster based on the local coordinates of the electronic sticky note widget in which each electronic sticky note cluster is associated with the associated electronic sticky note. As shown in FIG. 8A, electronic sticky notes 712, 713, 714, 715, 730, 731 are associated with the electronic sticky note cluster 801. As shown in FIG. 11, each electronic sticky note is associated with an electronic sticky note widget 912, 913, 914, 915, 930, 931. In the local coordinate system, the electronic sticky note widget 912 is displayed at the coordinates of (358.000, 283.500) pixel in the size of (36 × 36) pixel. The origin at the top left of this electronic sticky note widget is
(358.000−36 ÷ 2,283.500−36 ÷ 2) = (340.000, 265.500) [pixel]
It is. Also, the bottom right coordinate of this electronic sticky note widget is
(358.000 + 36 ÷ 2,283.500 + 36 ÷ 2) = (376.000, 301.500) [pixel]
It is.

  Similarly, the widget placement unit 342 obtains a boundary box including the upper left origin and lower right coordinates of all associated electronic tag widgets as the boundary box 941 on the local coordinates of the electronic tag cluster 801. As shown in FIG. 9A, the left end of the boundary box 941 is derived from the electronic sticky note widget 931, and the upper end is derived from the electronic sticky note widget 912. The right end is derived from the electronic sticky note widget 913, and the lower end is derived from the electronic sticky note widget 930. The widget placement unit 342 similarly obtains the boundary boxes 942 to 947 on the local coordinate system of the electronic sticky note clusters 802 to 807. An example of the calculation result of the boundary box is shown in FIG.

  The widget placement unit 342 acquires local coordinates of each electronic sticky note cluster (S1003). As shown in FIG. 8A, the global coordinates of the electronic sticky note cluster 801 are (510.000, 431.667) block. When only the local board display origin (512, 284) block is moved in the minus direction, a shift amount (-2.000, 144.667) block from the center coordinate in the global coordinate system is obtained. When this shift amount is multiplied by a display magnification of 1.0 pixel / block, a shift amount (-2.000, 144.667) pixel from the center coordinate in the local coordinate system is obtained. Further, when only the central coordinates (320, 177.5) pixel in the local coordinate system is moved in the plus direction, local coordinates (318.000, 325.167) pixel are obtained. The widget placement unit 342 obtains local coordinates of the electronic sticky note clusters 801 to 807. The electronic sticky note clusters on the local coordinates (electronic sticky note clusters in the local coordinate system) are “952” to “957”. FIG. 12B shows an example of calculation results of coordinates mapped to the local coordinate system of the electronic sticky note cluster.

  The widget placement unit 342 repeats the following processing for all electronic sticky note clusters (S1004). The widget placement unit 342 displays the electronic sticky note widget associated with the electronic sticky note associated with the target electronic sticky note cluster (S1005). As each electronic sticky note widget shown in FIG. 11, the display image of the associated electronic sticky note is displayed in coordinates / size on the local coordinate system. Hereinafter, this is referred to as a display image of the electronic sticky note widget.

  Hereinafter, the arrangement of shortcut widgets will be mainly described with reference to FIG. The widget placement unit 342 determines whether or not all the boundary boxes of the electronic sticky note cluster are included in the shortcut widget display frame 994 (S1011). As shown in FIG. 9A, it is determined that only the boundary box 943 is included in the shortcut widget display frame 994. Other boundary boxes 941, 942, 944, 945, and 946 are not partly or entirely included in the shortcut widget display frame 994. Therefore, for these boundary boxes, the following is executed as a process for displaying the shortcut widget.

  When the boundary box is not included in shortcut widget display frame 994 (NO in S1011), widget arrangement unit 342 obtains half lines 961-967 (S1012). For example, the half line 961 is a half line passing through the electronic tag cluster 951 with the local board center coordinate 993 as an end. That is, the half line 961 is a half line that ends at (320, 177.5) and passes through (318.000, 325.167). Hereinafter, the half lines 962 to 967 are similarly obtained.

  The widget placement unit 342 sets the coordinates of the shortcut widget associated with the electronic tag cluster as the intersection of the half lines 961 to 967 and the shortcut widget display frame 994 (S1013). FIG. 13 shows a flowchart of intersection detection, and FIG. 14 shows a schematic diagram thereof. In this example, the shortcut widget display frame 994 is divided into four parts, the upper line segment, the right line segment, the lower line segment, and the left line segment, and the shortcut is detected by detecting the intersection of each half line. The intersection detection of the widget display frame 994 and the half line is performed.

  The widget placement unit 342 determines whether the Y coordinate of the electronic sticky note cluster of interest is smaller than the local board center coordinate 993 (S1311). If the Y-coordinate of the electronic sticky note cluster is smaller (YES in S1311), widget arrangement unit 342 obtains the intersection of the upper line segment and the half line (S1312). As a result, when there is an intersection (YES in S1313), this process ends.

  If no intersection point is found (NO in S1313) or the Y coordinate of the electronic sticky note cluster is larger (NO in S1311), the process proceeds to S1321. The widget placement unit 342 determines whether the X coordinate of the focused electronic tag cluster is larger than the X coordinate of the local board center coordinate 993 (S1321). If the X-coordinate of the electronic sticky note cluster is larger (YES in S1321), widget arrangement unit 342 obtains the intersection of the right line segment and the half line (S1312). As a result, if there is an intersection (YES in S1323), this process ends.

  If no intersection point is found (NO in S1323) or the X coordinate of the electronic sticky note cluster is smaller (NO in S1321), the process proceeds to S1331. The widget placement unit 342 determines whether the Y coordinate of the electronic sticky note cluster of interest is larger than the Y coordinate of the local board center coordinate 993 (S1331). If the Y coordinate of the electronic sticky note cluster is larger (YES in S1331), widget arrangement unit 342 obtains the intersection of the lower line segment and the half line (S1332). As a result, if there is an intersection (YES in S1333), this process ends.

  If no intersection point is found (NO in S1333) or the Y coordinate of the electronic sticky note cluster is smaller (NO in S1331), widget placement unit 342 obtains the intersection of the left line segment and the half line (S1341). .

  Through this series of processing, the intersections of the shortcut widget display frame 994 and the half lines 961 to 967 are obtained by sequentially checking in the clockwise direction. As another means, the coordinates of the four vertices when the shortcut widget display frame 994 is regarded as a rectangle are obtained, and a line segment on the shortcut widget display frame 994 where an intersection can exist based on the inclination of the half line is selected. You may do it.

  In accordance with the coordinates of the shortcut widget that is the calculation result, the widget placement unit 342 places the shortcut widget associated with the electronic tag cluster (S1014). FIG. 12C shows an example of the calculation result of the arrangement coordinates of the shortcut widget in the local coordinate system. The electronic sticky note cluster 951 has an intersection with the line segment below the shortcut widget display frame 994, and the shortcut widget 971 is arranged at the coordinates of (317.867, 335.000) pixel. Similarly, shortcut widgets 972 to 977 are arranged on the shortcut widget display frame 994. Note that since the boundary boxes of the electronic tag cluster 953 are all included in the shortcut widget display frame 994, the shortcut widget 973 is not arranged.

  Here, it is desirable that the shortcut widgets 971 to 977 apply different expression methods from the electronic tag widgets 901 to 932. As an example of an expression method, it is conceivable to add a shadow to the shortcut widget, enlarge a frame around it, or add a mark indicating that it is a shortcut widget.

  By repeating the above processing for all electronic sticky note clusters, the widget placement unit 342 places the electronic sticky note widget associated with the electronic sticky note on the local board 350. Further, the widget placement unit 342 places a shortcut widget associated with the electronic sticky note cluster on the local board 350.

  Returning to FIG. 4, the widget placement unit 342 reviews the shortcut widget display (S405). In the present embodiment, since the shortcut display condition 381 is “fixed”, nothing is done here.

  Subsequently, the event management unit 341 waits for an operation event from the touch panel display 211 (S406). The operation event includes a touch down event, a touch move event, a touch up event, or a conference end event. The touchdown event is an event in which an operator's finger or pen is placed on the touch panel display 211. The touch move event is an event in which a finger or pen placed on the touch panel display 211 is moved. The touch-up event is an event in which a finger or pen placed on the touch panel display 211 is released. The conference end event is an event in which the exit button 352 is pressed.

  The event management unit 341 stores the coordinates and time when the previous touchdown event occurs. The event management unit 341 is a touch-up event with a long tap if the coordinates at the time of the previous touch-down event occur within a certain distance and the time interval is a certain time or more when a touch-up event occurs. Recognize. Here, the constant distance and the time interval are defined in advance. In addition, the event management unit 341 stores information on a target object, coordinates, and time when a previous touch-up event occurs. When the touch-up event occurs, the event management unit 341 detects that the same object, coordinate is within a certain distance, and the time interval is within a certain distance as long as the previous touch-up event has occurred. Recognize that

  The event management unit 341 branches the process according to the type of operation event (S407). When the touchdown event occurs, the event management unit 341 detects the target object that is the target object according to the event occurrence coordinates (S411). The target object includes an electronic sticky note widget included in the electronic sticky note widget group 360, a shortcut widget included in the shortcut widget group 370, or a local board 350.

  When the touch move event occurs, the event management unit 341 branches the process according to the operation target object (S421). If the target object is an electronic sticky note widget, the event management unit 341 recognizes the direction in which the electronic sticky note widget that is the target object has been moved (S422). Here, the movement direction is four directions, up, down, left, and right, and direction recognition is performed with a certain margin in the direction perpendicular to the movement direction. In addition, the event management unit 341 aggregates the movement directions in the same direction into one, and excludes the movement directions that are no longer necessary for gesture recognition from the stored information. Then, the event management unit 341 resumes the process from the event waiting (S405).

  The event management unit 341 determines whether the movement operation including the past movement operation is a specific gesture for requesting the minimap display (S423). The mini map display will be described later with reference to FIG. As an example of the specific gesture, when the electronic sticky note widget is sequentially moved in the upward direction, the right direction, the downward direction, and the left direction, it is determined that the mini map display gesture has been performed. If it is not possible to recognize that the mini map display request gesture has been made (NO in S423), the event management unit 341 reviews the shortcut widget display (S424). This process is the same process as S405. In the present embodiment, nothing is done because the shortcut display condition 381 is fixed. The event management unit 341 moves the electronic tag widget that is the target object to the coordinates where the current touch move is occurring (S425). At this time, the electronic sticky note widget moves, but the electronic sticky note associated therewith is not moved. Then, the event management unit 341 resumes processing from the event wait (S406).

  If it can be recognized that a mini map display request gesture has been made (YES in S423), widget arrangement unit 342 rearranges each widget to form a mini map layout (S426). Then, the event management unit 341 resumes processing from the event wait (S406).

  Here, details of the mini map layout displayed in response to the mini map display request will be described. A display example at the time of mini-map layout is shown in FIG. The mini-map layout is a layout that displays each shortcut widget in a scaled manner so as to fit within the shortcut widget display frame 994 based on the global coordinates of each electronic tag. Shortcut widgets for all electronic sticky note clusters are displayed. The electronic sticky note widgets 901 to 932 included in the electronic sticky note widget group are hidden. Thereby, it is possible to easily grasp the mutual positional relationship of each electronic sticky note cluster. In FIG. 15, an electronic sticky note widget 901 means an electronic sticky note widget that is the current target object (in operation). The electronic sticky note widget 901 can be moved over the shortcut widget and touched up to move the electronic sticky note.

FIG. 16 shows an example of a calculation result of the shortcut widget arrangement at the time of mini map layout. Referring to FIG. 8A, the X coordinate range of the global coordinates of each electronic sticky note cluster is 36.667 to 926.667. Further, the value range of the Y axis is 30.000 to 431.667. The shortcut widget display frame 994 has a width and height of (600, 315) pixel and an origin coordinate of (20, 20) pixel. The coordinates of the electronic tag cluster 801 in the local coordinate system are (510.000, 431.667) block. As described above, the local coordinates at the time of mini map layout of the shortcut widget 971 associated with the electronic tag cluster 801 at the time of mini map arrangement are calculated as follows.
X: (X−MinX) ÷ (MaxX−MinX) × ScaleWidth + OffsetX = (510.000−36.667) ÷ (926.667−36.667) × 600 + 20 = 339.101 [pixel]
Y: (Y−MinY) ÷ (MaxY−MinY) × ScaleHeight + OffsetY = (431.667-30.000) ÷ (431.667-30.000) × 315 + 20 = 335.000 [pixel]
The local coordinates at the time of mini-map layout of the shortcut widgets 972 to 977 can be calculated in the same manner.

  Returning to FIG. 4, in S421, when the target object is a shortcut widget, the event management unit 341 does nothing, and the event management unit 341 resumes processing from the event waiting (S406). When the target object is the local board 350, the event management unit 341 detects the movement of a finger or pen placed on the touch panel display 211, and changes the local board display origin accordingly (S431). Since this process is a scroll process based on a general drag-and-drop, details are omitted. The event management unit 341 resumes the process from the widget arrangement process (S404) in response to the update of the display condition.

  In addition, as an example of the process related to the touch move event performed by the event management unit 341, a process of displaying an electronic sticky note related to the shortcut widget can be added. For example, it is assumed that it is detected that the target object is an electronic sticky note widget and has stopped on the shortcut widget for a certain period of time. In this case, the widget placement unit 342 displays the electronic tag widget associated with the electronic tag cluster associated with the shortcut widget. As a result, while the electronic sticky note is being moved, it is possible to check each associated electronic sticky note that cannot be expressed only by the shortcut widget.

  If a touch-up event has occurred in S406, the event management unit 341 branches the process according to the operation target object (S451). When the target object is the local board 350, the event management unit 341 determines whether the operation from the touch panel display 211 is a long tap input (S452). If it is not a long tap (NO in S452), the event management unit 341 resumes the process from the event wait (S405). If it is a long tap (YES in S452), the event management unit 341 performs a new electronic sticky note addition process (S453). In the new addition process, the event management unit 341 captures an image of a physical sticky note via the built-in camera 213 and determines the coordinates of the new electronic sticky note based on an input from the touch panel display 211. Then, the event management unit 341 updates the electronic sticky note information 325 via the electronic sticky note information update unit 322, and adds the electronic sticky note update information to the electronic sticky note transmission update information 324. Thereafter, the event management unit 341 restarts the process from the electronic sticky note cluster generation (S403).

  If the target object is an electronic sticky note widget in S451, the event management unit 341 determines whether the coordinates at the time of occurrence of the touch-up event are on the shortcut widget (S461). That is, the coordinates at the time of occurrence of the touch-up event are set as the movement destination of the electronic tag as the target object. If the destination is a shortcut widget (YES in S461), the event management unit 341 updates the destination in the vicinity of the electronic sticky note cluster associated with the shortcut widget (S462). At this time, the event management unit 341 determines a movement destination using the coordinates of the electronic tag cluster as reference coordinates. The event management unit 341 obtains an average distance to each electronic sticky note associated with the electronic sticky note cluster. One of the coordinates within the circle at an average distance from the reference coordinate is selected based on a random number, and determined as a movement destination. At this time, coordinates with a low density of the electronic sticky note may be further obtained from the positional relationship between the electronic sticky notes associated with the electronic sticky note cluster, and the coordinates may be determined as the movement destination. Then, the event management unit 341 updates the electronic sticky note information 325 via the electronic sticky note information update unit 322, and adds the electronic sticky note update information to the electronic sticky note transmission update information 324 (S463). Thereafter, the event management unit 341 restarts the procedure from the electronic sticky note cluster generation (S403).

  If the target object is a shortcut widget in S451, the event management unit 341 determines whether the operation from the touch panel display 211 is a double tap input (S471). If it is a double tap (YES in S471), the event management unit 341 obtains the global coordinates of the electronic sticky note cluster associated with the shortcut widget. In response to this, the event management unit 341 changes the local board display origin (S472). For example, the global coordinates of the electronic sticky note cluster are set as the local board display origin. When it is not a double tap (NO in S471), the event management unit 341 determines whether the operation from the touch panel display 211 is a long tap input (S473). If it is a long tap (YES in S473), the event management unit 341 determines the maximum and minimum values of the global coordinates (X, Y) of the electronic sticky note related to the electronic sticky note cluster associated with the shortcut widget that is the target object. Find the value. Then, the event management unit 341 updates the local board display origin by the average of the obtained maximum value and minimum value. In addition, the event management unit 341 calculates the width / height on the global board to be displayed from the difference between the maximum value and the minimum value, and determines the display magnification ratio from the width / height ratio of the local board 350. (S474). Thereafter, the event management unit 341 resumes the process from the widget arrangement process (S404).

  In S407, when a conference end event occurs, the event management unit 341 performs a conference leaving process (S499). Then, this processing flow ends.

  The electronic sticky note conference terminal of this embodiment can provide a means for expressing the arrangement of electronic sticky notes existing outside the local board 350 on the local board 350 by displaying a shortcut widget.

  The electronic sticky note conference terminal detects the movement of the electronic sticky note widget on the shortcut widget, and moves the electronic sticky note widget to the coordinates of the electronic sticky note cluster associated with the shortcut widget. Thereby, the electronic sticky note conference terminal provides a simplified means for moving the electronic sticky note to coordinates outside the local board 350. The electronic sticky note conference terminal provides display means in a mini-map layout that can easily check the distribution of electronic sticky note clusters on global coordinates.

  As described above, even a terminal having a low-resolution display unit can improve the convenience of user operation in the electronic sticky note conference.

<Second Embodiment>
In the first embodiment, the shortcut widget is always displayed. The display image of the shortcut widget uses the display image of the electronic sticky note that is closest to the associated electronic sticky note cluster. Here, another embodiment relating to the display of the shortcut widget will be described as a second embodiment. In addition, description is abbreviate | omitted about the location which overlaps with 1st embodiment.

[Display setting screen]
When the event management unit 341 detects that the setting button 353 shown in FIG. 3 has been pressed, it makes a setting request to the shortcut widget display setting management block 380. The shortcut widget display setting management block 380 makes a setting request to the shortcut widget display setting reception unit 383. The shortcut widget display setting reception unit 383 displays a shortcut widget display setting dialog 382.

  An example of the shortcut widget display setting dialog 382 is shown in FIG. In the display timing setting item, the always-on radio button 1711 means that the shortcut widget is always displayed. The moving radio button 1712 means that the shortcut widget is displayed only when the electronic tag widget is moved. The peripheral part moving radio button 1713 means that the shortcut widget is displayed only when the electronic sticky note widget is moving around the peripheral part. These radio buttons are exclusively controlled so that only one of them can be selected.

  In the display size setting item, the constant radio button 1721 means that the size for displaying the shortcut widget is constant. The automatic adjustment (distance-dependent) radio button 1722 means that the size for displaying the shortcut widget is automatically adjusted depending on the distance between the local board center coordinates 993 and the coordinates of the electronic sticky note cluster associated with the shortcut widget. These radio buttons are exclusively controlled so that only one of them can be selected.

  In the display image setting item, the nearest radio button 1731 means that the display image of the related electronic sticky note whose image displayed in the shortcut is closest to the coordinates of the electronic sticky note cluster related to the shortcut widget is applied. . The sequential display (fixed) radio button 1732 means that the image displayed on the shortcut widget displays the display image of the electronic sticky note related to the shortcut widget while sequentially switching at a fixed interval. The sequential display (distance-dependent) radio button 1733 means that the display interval of the display image of the electronic tag widget displayed by the shortcut widget is determined according to the distance between the electronic tag widgets. These radio buttons are exclusively controlled so that only one of them can be selected.

  In the setting item of the arrangement method, the on-frame arrangement radio button 1741 means that the shortcut widget is arranged on the shortcut widget display frame 994. The out-of-frame arrangement radio button 1742 means that the shortcut widget is arranged between the shortcut widget display frame 994 and the display area 992. These radio buttons are exclusively controlled so that only one of them can be selected.

  In the setting process for overlapping processing, the radio button 1761 without correction means that when the shortcut widget is arranged and arranged so as to be superimposed, the correction processing for the arrangement position is not performed. The automatic correction radio button 1762 means that the position is automatically corrected when the shortcut widgets overlap. The sequential display (constant) radio button 1863 means that when the shortcut widgets overlap, the one overlaid at a constant time interval is changed. The sequential display (distance-dependent) radio button 1863 means that when the shortcut widgets overlap, the one overlaid at each time interval corresponding to the distance from the local board center coordinates 993 is changed. These radio buttons are exclusively controlled so that only one of them can be selected.

  An OK button 1799 is a button for the shortcut widget display setting reception unit 383 to receive a setting end request from the conference participant. When the OK button 1799 is pressed, the shortcut widget display setting receiving unit 383 holds the display setting set by each radio button on the shortcut widget display setting dialog 382 in the display condition 351. Further, the shortcut widget display setting reception unit 383 closes the shortcut widget display setting dialog 382 and requests the widget arrangement unit 342 to rearrange the widgets.

[Processing flow]
The widget placement unit 342 changes the widget display means according to the display settings held in the display condition 351 when performing the process at the time of reviewing the shortcut widget display (S405 or S424 in FIG. 4). An example of a flowchart for changing the widget display means is shown in FIG.

  The widget placement unit 342 branches the process depending on the display timing setting (S1811). If the display timing setting is “always”, the widget placement unit 342 displays the shortcut widget (S1813).

  If the display timing setting is “when moving”, the widget placement unit 342 determines whether or not the electronic sticky note widget is currently moved (S1812). When this processing flow is called in S405, the electronic sticky note widget is not moving. On the other hand, when this processing flow is called in S424, the electronic sticky note widget is being moved. If the electronic tag widget is being moved (YES in S1812), widget arrangement unit 342 displays a shortcut widget (S1813). If the electronic tag widget is not moving (NO in S1812), widget arrangement unit 342 hides the shortcut widget (S1816).

  If the display timing setting is “when the peripheral portion is moving”, the widget placement unit 342 determines whether the electronic sticky note widget is moved (S1814). If the electronic sticky note widget is being moved (YES in S1814), the widget placement unit 342 determines whether the coordinates at the time of occurrence of the touch move event moving the electronic sticky note widget are the peripheral part of the local board 350 ( S1815). For example, 10% of the width / height of the local board 350 is defined as the peripheral portion. At this time, if the coordinates when the touch move event occurs are outside the area of (64.000, 35.500) to (576.000, 319.500), it is determined that the area is the peripheral part. If the electronic sticky note widget is not moving (NO in S1814) or if the coordinates at the time of the touch move event are not in the periphery (NO in S1815), widget arrangement unit 342 hides the shortcut widget (S1816). ). After the shortcut widget is hidden, this processing flow ends.

  When displaying the shortcut widget, the widget placement unit 342 branches the process depending on the display size setting (S1821). When the display size setting is “constant”, the widget placement unit 342 uniformly sets the display size of all shortcut widgets to the same value (S1822). Thereafter, the process proceeds to S1831.

  When the display size setting is “distance dependent”, the widget placement unit 342 determines the display size of the shortcut widget based on the local board center coordinates 993 and the distance between the electronic sticky note clusters (S1823). An example of the calculation result of the display size of the shortcut widget here will be described with reference to FIG. In this example, the first display size threshold is 38 pixels (first size), and the second display size threshold is 19 pixels (second size). Further, 157.5 pixels which is half of the short side of the shortcut widget display frame 994 is set as a size reference radius R1 (first reference distance).

If the distance from the local board center coordinates 993 to each electronic sticky note cluster is equal to or smaller than the size reference radius R1, the display size of the shortcut widget is set to the first display size threshold (ie, 38 pixels). If the distance is less than or equal to twice the size reference radius R1, the display size of the shortcut widget is obtained by the following formula.
First display size threshold− (first display size threshold−second display size threshold) × (distance to electronic sticky note cluster−size reference radius R1) ÷ size reference radius R1
When the distance exceeds twice the size reference radius R1 (second reference distance), the second display size threshold (that is, 19 pixels) is used as the display size of the shortcut widget.

Electronic sticky note clusters 952 and 955 are used as examples. In FIG. 19, a distance 1902 of the half line 962 is a distance between (149.667, −43.167) pixel and (320.000, 177.500) pixel as shown in FIG. Therefore, the distance 1902 is
SQRT (POWER (149.667-320.000, 2.0) + POWER (-43.167-177.500), 2.0) = 278.760 [pixel]
It is. Here, the function SQRT () means a square root. The function POWER () means a power.

The value obtained here is not less than the first display size threshold and less than the second display size threshold. So the size of the shortcut widget is
38− (38−19) × (278.760−177.5) ÷ 177.5 = 27.160 [pixel]
It becomes. Therefore, the width / height is reduced to a size of about 70% and displayed as compared with the shortcut widget associated with the electronic tag cluster whose distance is equal to or smaller than the size reference radius R1.

On the other hand, the distance 1905 of the half line 965 is a distance between (638.000, −76.500) pixel and (320.000, 177.500) pixel as shown in FIG. The distance 1905 is
SQRT (POWER (638.000-320.000, 2.0) + POWER (-76.500-177.500, 2.0)) = 406.989 [pixel]
It is. The value obtained by this is larger than twice the size reference radius R1. Therefore, the size of the shortcut widget is 19 pixels which is the second display size threshold. The size of other shortcut widgets is similarly determined.

  FIG. 20 shows a calculation result example and a display example of the shortcut widget size. An example of the calculation result is shown in FIG. 20A, and the arrangement on the local board 350 is shown in FIG. In FIG. 20B, since the display size of the shortcut widget 971 is the largest, it can be recognized that the electronic sticky note cluster existing nearest is the electronic sticky note cluster 801. Further, since the shortcut widget 972 has a larger display size than the shortcut widgets other than the shortcut widget 971, it can be recognized that the next electronic sticky note cluster is the electronic sticky note cluster 802. Since the other shortcut widgets 974 to 977 are smaller than the display size of the shortcut widgets 971 and 972, the electronic tag cluster is arranged at a distant position. In this way, the conference participants can be notified of the distance from the associated electronic sticky note cluster by the visual information of the size of the shortcut widgets 971 to 977.

  Returning to FIG. 18, the widget placement unit 342 branches the process depending on the display image setting (S1831). When the display image setting is “nearest neighbor”, the widget placement unit 342 displays the image displayed on each shortcut widget of the electronic sticky note widget at the closest coordinate among the electronic sticky note widgets associated with the electronic sticky note cluster. It is set as an image (S1832).

  When the display image setting is “sequential display (fixed)”, the widget placement unit 342 sets the timing for displaying the display image of the electronic sticky note widget of each shortcut widget to a fixed value (S1833). Then, the widget placement unit 342 switches the display image of each electronic tag widget associated with the electronic tag cluster as an image to be displayed with the shortcut widget according to the set display timing (S1834).

  Here, as one designation method, there is a method of designating a display time per display image of the electronic sticky note widget. When the display timing is set to 5 seconds / image, the shortcut widget 974 sequentially switches the display image of the electronic tag widget 902 associated with the electronic tag cluster 801 to 5 seconds, the display image of the electronic tag widget 903 to 5 seconds, and so on. While displaying. Alternatively, a method may be used in which the display timing is determined by designating the time for displaying all the electronic tag widgets once and dividing by the number of associated electronic tag widgets. In addition, the time for displaying all the electronic sticky notes once may be set. For example, if the time for one round display is 30 seconds and there are six electronic tag widgets, the display timing of each image in the shortcut widget is 30 seconds / 6 images = 5 seconds / image. On the other hand, when there are three electronic tag widgets, the display timing of each image is 30 seconds / 3 images = 10 seconds / image. Alternatively, these two display timing determining means may be selected by a new switch (not shown).

  When the display image setting is “sequential display (distance dependent)”, the widget placement unit 342 obtains the distance between the electronic sticky note cluster and the electronic sticky note widget. Then, according to the distance, the widget placement unit 342 determines the timing for displaying the display image of the electronic tag widget associated with each shortcut widget (S1835). An example of the calculation result of the timing determination process for displaying the display image of the electronic sticky note widget is shown in FIG.

  The timing for displaying the display image of each electronic sticky note in the shortcut widget is determined by the following procedure. The distance between the coordinates of the electronic sticky note cluster and the coordinates of each electronic sticky note widget is obtained, and the average distance is defined as the “timing reference distance”. Then, in each electronic sticky note widget included in the electronic sticky note cluster, the distance between the electronic sticky note widget and the electronic sticky note cluster is respectively compared. Here, the first display time threshold (first time interval) is displayed for the image of the electronic sticky note widget in which the distance between the electronic sticky note widget and the electronic sticky note cluster is equal to or less than the timing reference distance (first reference value). Time. For the image of the electronic sticky note widget in which the distance between the electronic sticky note widget and the electronic sticky note cluster is not more than twice the timing reference distance (second reference value), it is between the first display time threshold value and the second display time threshold value. The time for displaying the display image of the electronic sticky note is determined according to the distance. For the image of the electronic sticky note widget in which the distance between the electronic sticky note widget and the electronic sticky note cluster is greater than twice the timing reference distance, the second display time threshold (second time interval) is displayed. Here, the first display time threshold is 3 seconds, and the second display time threshold is 1 second.

For example, the shortcut widget 971 is associated with the electronic sticky note cluster 951. The electronic sticky note cluster 951 is associated with the electronic sticky note widgets 912, 913, 914, 915, 930, and 931. First, the electronic sticky note widget 912 (local coordinates (358.000, 283.500) pixel) associated with the electronic sticky note cluster 951 (local coordinates (318.000, 325.167) pixel, FIG. 12B), Consider FIG. 11) as an example. The distance between the electronic sticky note widget and the electronic sticky note cluster is
SQRT (POWER (358.000-318.000,2.0) + POWER (283.500-325.167,2.0)) = 57.759
It becomes. Similarly, for other electronic tag widgets, the distance between the electronic tag widget and the electronic tag cluster is obtained. The average distance between all electronic sticky note widgets and the electronic sticky note cluster, that is, the timing reference distance is 39.940. The distance between the electronic sticky note widget and the electronic sticky note cluster of the electronic sticky note widget 912 is 57.759, which is not less than the distance between the electronic sticky note widget and the electronic sticky note cluster, and is not more than twice the distance between the electronic sticky note widget and the electronic sticky note cluster. Therefore, the display time is
3.0− (3.0−1.0) × (57.759−39.940) ÷ 39.940 = 2.108 [seconds]
It becomes. In other shortcut widgets, the display time can be similarly obtained for each display image of the electronic tag widget.

  In each shortcut widget, the display time for displaying the image of the electronic sticky note widget as the display image of the shortcut widget can be determined according to the distance between the electronic sticky note cluster and the electronic sticky note widget. This makes it possible to display for the long time the electronic sticky note that can be the average, that is, the representative in the electronic sticky note cluster.

  As described above, in each shortcut widget, the display time for displaying the display image of the related electronic tag widget is determined as the display timing. The widget placement unit 342 switches and displays the display image of the electronic tag widget associated with the electronic tag cluster as an image to be displayed by the shortcut widget according to the display timing (S1834).

  The widget placement unit 342 branches the process depending on the placement method setting (S1841). When the placement method setting is “place on frame”, the widget placement unit 342 places the shortcut widget on the shortcut widget display frame 994 based on the means described in the first embodiment (S1842).

  When the arrangement method setting is “outside frame arrangement”, the widget arrangement unit 342 arranges the shortcut widget between the shortcut widget display frame 994 and the display area 992 based on the means described below (S1843). FIG. 22 shows a flowchart when the shortcut widget is arranged outside the frame. A schematic diagram when the shortcut widget is arranged outside the frame is shown in FIG. FIG. 24 shows an example of the calculation result when the shortcut widget is arranged outside the frame.

  The widget placement unit 342 makes corrections for shortcut widgets that have shortcut widgets outside the shortcut widget display frame 994. The correction here means correction of the position to be arranged. The following processing is performed only for the shortcut widget that is the correction target. Specifically, since the electronic sticky note clusters 951 and 953 of the shortcut widgets 971 and 973 are in the shortcut widget display frame 994, they are not corrected. Shortcut widgets 972, 974, 975, 976, and 977 are correction targets.

The widget placement unit 342 obtains a linear distance between the coordinates of the shortcut widget and the coordinates of the electronic sticky note cluster associated with the shortcut (S2202). 23, the distance 2312 between the coordinates 2301 of the shortcut widget and the coordinates 2311 of the electronic sticky note cluster is obtained. The difference between the X direction and the Y direction and the straight line distance are obtained respectively. In the case of the shortcut widget 972, the coordinates of the shortcut widget 972 are (198.425, 20.000) pixel as shown in FIG. The coordinates of the electronic tag cluster 952 are (149.667, −43.167) pixel as shown in FIG. Therefore, the X difference is
149.667−198.425 = −48.758
And the Y difference is
−43.167−20.000 = −63.167
It becomes. And the linear distance is
SQRT (POWER (−48.758, 2.0) + POWER (−63.167, 2.0)) = 79.796
It becomes. Similarly, the difference between the X direction and the Y direction and the straight line distance are obtained for other shortcut widgets that are correction targets.

  The widget placement unit 342 obtains a correction distance according to the straight line distance of each shortcut widget from the minimum value and the maximum value of the straight line distance (S2203). That is, the correction distance 2332 is obtained according to the size of the distance 2312 in FIG.

The correction distance is
(Shortcut widget straight line distance−minimum straight line distance) ÷ (maximum straight line distance−minimum straight line distance) × shortcut frame width. The shortcut widget with the minimum straight line distance is arranged at the coordinates 2301 of the shortcut widget with the correction distance 2332 set to “0”. In the shortcut widget having the maximum straight line distance, the correction distance 2332 is the shortcut frame width. Then, on the straight line from the local board center coordinates 993 to the coordinates 2311, the coordinates are arranged at coordinates corresponding to the coordinates 2322 that are separated from the coordinates 2301 by the width of the shortcut frame. In this example, the maximum straight line distance is 154.624 pixels, and the minimum straight line distance is 79.796 pixels. Since the straight line distance of the shortcut widget 972 is the minimum value of 79.796, the correction distance is 0.000. The straight-line distance of the shortcut widget of the shortcut widget 975 is 154.624, and the correction distance is
(154.624-79.796) / (197.084-79.796) × 20.000 = 12.760 [pixel]
It becomes.

The widget placement unit 342 obtains the X correction amount and the Y correction amount from the correction distance, the straight line distance, the X difference, and the Y difference (S2204). The X correction amount and the Y correction amount are obtained by the following equations, respectively.
X correction amount = correction distance × X difference / linear distance Y correction amount = correction distance × Y difference / linear distance

The X correction amount and Y correction amount of the shortcut widget 975 are as follows.
X correction amount: 12.760 × 120.815 ÷ 154.624 = 9.970 [pixel]
Y correction amount: 12.760 × (−96.500) ÷ 154.624 = −7.963 [pixel]
The same calculation can be performed for other shortcut widgets. FIG. 24A shows the calculation result.

  The widget placement unit 342 applies the X correction amount and the Y correction amount to the coordinates of the shortcut widget, and obtains the corrected coordinates of the shortcut widget (S2205). The coordinates of the shortcut widget 975 are (517.185, 20.000) pixels. When the calculated correction amount is added to this, the coordinates of the shortcut widget after the correction are (527.155, 12.037) pixel. FIG. 24B shows coordinates after correction of other shortcut widgets.

  As a result, the coordinates of the shortcut widget are moved to the outside of the frame according to the distance between the shortcut widget and the electronic tag cluster. That is, only a part of the shortcut widget associated with the cluster that is far away from the currently displayed area is displayed. In addition, an electronic sticky note cluster existing in the vicinity displays the entire shortcut widget. This difference in appearance makes it possible to visually represent the distance from the electronic sticky note cluster existing outside the display area 992 for the conference participants.

  The widget placement unit 342 branches the process depending on the overlapping process setting (S1851). When the overlap processing setting is “automatic correction”, the widget placement unit 342 performs rearrangement so as to remove the shortcut widget overlap (S1852). FIG. 25 shows a flowchart example of shortcut widget overlap removal. FIG. 26 shows a schematic diagram of the shortcut widget overlap removal.

  The widget placement unit 342 assigns the processing order in order from the shortcut widget close to the local board center coordinate 993 (S2501). This is because a thing close to the local board center coordinate 993 is preferentially arranged. The widget placement unit 342 excludes all shortcut widgets from the local board 350 (S2502). Next, the widget arrangement unit 342 calculates a rearrangement reference radius (S2503). This rearrangement reference radius is a reference when searching for alternative rearrangement coordinates when the shortcut widgets overlap. For example, a value that is ½ of the shortcut frame width can be specified.

  Next, the widget placement unit 342 repeats the following processing for all shortcut widgets in accordance with the assigned processing order (S2510). The widget placement unit 342 determines whether there is a placed shortcut widget that overlaps the target shortcut widget (S2511). If it does not exist (NO in S2511), widget arrangement unit 342 arranges the shortcut widget on local board 350 according to the coordinates (S2513).

  If there is an already arranged shortcut widget that overlaps with the target shortcut widget (YES in S2511), widget arrangement unit 342 sets the arrangement flag to “FALSE” (S2520). The widget arrangement unit 342 repeats the processing of S2522 to S2535 while i = 0 to ∞ and the arrangement flag = FALSE (S2521). The widget placement unit 342 sets (2 × i) times the rearrangement reference radius as the rearrangement radius (S2522).

  The widget placement unit 342 sets Floor (π × i) +1 as the maximum number N of widgets on the rearrangement radius (S2523). First, it is assumed that two half circles of the rearrangement reference radius are arranged at the intersection of the shortcut widget display frame 994 and the half circle of the rearrangement radius, and N−2 total circles are arranged therebetween. The circumference of the semicircle of the rearrangement radius is (2.0 × π × relocation reference radius × 2 × i) /2.0. On the other hand, in the circle of the rearrangement reference radius, the length of the arc passing through the two points on the circumference and the center point can be approximated by 2 × relocation reference radius. From the above, N satisfying (π × relocation reference radius × 2 × i) ≧ (2 × relocation reference radius × (N−2) + relocation reference radius × 2) is obtained. Therefore, the maximum integer Floor (π × i) +1 that satisfies N ≦ π × i + 1 is N. The function Floor () here is a function for rounding down to a value closest to a multiple of the reference value.

  The widget arrangement unit 342 repeats the processing of S2532 to S2535 while j = 0 to N and the arrangement flag = FALSE (S2531). The widget placement unit 342 calculates rearrangement coordinates from the shortcut widget coordinates, rearrangement radius, and j and N (S2532). This divides the circumference of the semicircle of the rearrangement radius into N-1 equal parts, and sets the jth rearrangement coordinate on the jth division point. At this time, when obtaining the rearrangement coordinates depending on which side of the shortcut widget display frame 994 the intersection of the half line from the local board center coordinate 993 to the electronic tag cluster and the shortcut widget display frame 994 intersects Determine the angle. For example, when intersecting with the upper side of the shortcut widget display frame 994, the widget placement unit 342 obtains rearrangement coordinates within a range of 0 to 180 degrees. Similarly, 90 to 270 degrees for the left side, 180 to 360 degrees for the lower side, and 270 to 90 degrees for the right side.

  The widget placement unit 342 determines whether or not there is a placed shortcut widget that overlaps when the target shortcut widget is placed at the rearrangement coordinates on the arc based on the rearrangement reference radius (S2533). If there is no overlapping arranged shortcut widget (NO in S2533), widget arrangement unit 342 sets the arrangement flag to “TRUE” (S2534). Then, the widget arrangement unit 342 moves the shortcut widget coordinates to the rearrangement coordinates (S2535). By repeating the above processing, the shortcut widget is always rearranged at one of the coordinates.

  The widget placement unit 342 places the shortcut widget on the local board 350 according to the coordinates (S2513).

  FIG. 26 is a schematic diagram for explaining this processing. Assume that electronic sticky note clusters 2601 and 2603 are arranged with respect to the local board center coordinates 993. First, half of the shortcut frame width is determined as the rearrangement reference radius 2621 (in this example, 10 pixels). A shortcut widget associated with the electronic tag cluster 2601 is arranged at the coordinates 2602.

  Subsequently, a shortcut widget associated with the electronic sticky note cluster 2603 is to be arranged at the coordinates 2604. However, since it overlaps with the shortcut widget on the coordinates 2602, an attempt is made to rearrange the shortcut widget associated with the electronic tag cluster 2603. First, the coordinates 2611 to 2614 on the division points on the semicircle 2622 having the rearrangement reference radius 2621 around the coordinates 2604 are used as rearrangement coordinates. In this case, since the coordinates 2611 do not overlap with other shortcut widgets, the shortcut widget associated with the electronic tag cluster 2603 is shifted to the coordinates 2611 and rearranged.

  Similarly, if the shortcut widgets overlap, an attempt is made to rearrange to the other three coordinates 2612, 2613, 2614 on other equally divided points on the semicircle 2622. If the placement is still not possible, the rearrangement reference radius 2631 is set to be twice the rearrangement reference radius 2621. Then, any of the coordinates 2641 to 2647 on the equally divided point on the semicircle 2632 having the rearrangement reference radius 2631 is used as the rearrangement coordinates.

  Returning to FIG. 18, when the overlapping processing setting is “sequential display (constant)”, the widget placement unit 342 sets the overlapping timing of the respective shortcut widgets to be constant (S1853). Thereafter, the process proceeds to S1854.

  When the overlapping processing setting is “sequential display (distance-dependent)”, the widget placement unit 342 groups shortcut widgets that overlap. The widget placement unit 342 determines the overlapping timing of the shortcut widgets based on the local board center coordinates and the distance between the electronic sticky note clusters (S1855). Of the overlapping electronic sticky note clusters, the shorter the shortcut associated with the more remote electronic sticky note cluster, the shorter the time.

  In accordance with the determined overlapping timing, the widget placement unit 342 places each shortcut widget in the forefront (that is, on the top) in the same group (S1854). Since the overlap timing determination means conforms to the display timing determination means except that the target group and the reference distance for determination are different, details are omitted. Then, this processing flow ends.

  By means of the shortcut widget display setting process described above, it is possible to provide means for more visually notifying the conference participants of the electronic sticky note existing outside the local board 350.

<Third embodiment>
In the first and second embodiments, the shortcut widget is arranged in association with the electronic tag cluster. Furthermore, a configuration may be adopted in which an area with a low arrangement density is searched based on the distribution of the electronic tag cluster and a new empty area shortcut widget is arranged there. As a third embodiment, an embodiment in which this free space shortcut widget is applied will be described. In addition, description is abbreviate | omitted about the part which overlaps with 1st embodiment.

  The empty area shortcut widget is a shortcut widget arranged on the local board 350 as a shortcut for an empty area where no electronic sticky note is arranged on the global board. As described above, the shortcut widget is associated with the electronic tag cluster. On the other hand, the free space shortcut widget is associated with a grid arranged at equal intervals on the global board.

  Basically, the free space shortcut widget is handled in the same manner as the shortcut widget. When the electronic sticky note widget is dragged onto the free space shortcut widget, the electronic sticky note widget moves around the associated grid. Further, the display condition may be changed by adding an operation to the free space shortcut widget.

  The arrangement process of the free space shortcut widget is executed as a part of the widget arrangement process (S404). FIG. 27 shows a flowchart for arranging a free space shortcut widget from the electronic tag cluster information 332. Also, FIG. 28 shows a schematic diagram when placing a free space shortcut widget. FIG. 29 shows an example of a calculation result when placing a free space shortcut widget.

  The widget placement unit 342 obtains the distance between the electronic sticky note clusters closest to all the electronic sticky note clusters, and sets the average of those distances as the average closest distance between the electronic sticky note clusters (S2701). The widget placement unit 342 calculates the distance between each electronic sticky note cluster (FIG. 29A). The widget placement unit 342 obtains the distance from the electronic sticky note cluster having the shortest distance in each electronic sticky note cluster. (FIG. 28 (A)). In the case of the electronic sticky note cluster 801, the distance 2801 from the electronic sticky note cluster 803 is the shortest at 232.002 blocks. Similarly, the widget placement unit 342 obtains all distances 2802 to 2807 for all electronic sticky note clusters, and sets the average value 274.081 as the average nearest distance between electronic sticky note clusters.

  The widget placement unit 342 divides the global board and places a grid (S2702). 28 and 29, the global board is divided into 12 blocks, and grids 2851 to 2870 are arranged at the vertices (20) of each block.

  The widget placement unit 342 calculates the distance to the closest electronic tag cluster for all grids, and calculates the shortest distance from the distance (S2703). First, the widget placement unit 342 calculates the distance between each electronic sticky note cluster and each grid (FIG. 29B). And the widget arrangement | positioning part 342 calculates | requires the distance with the shortest electronic tag cluster in each grid. For example, in the case of the grid 2851, the distance to the electronic sticky note cluster 804 is 54.263 block, which is the shortest distance. Similarly, the shortest distance is similarly calculated for all the grids (FIG. 29C).

  The widget placement unit 342 identifies the grid having the largest value among the shortest distances calculated for each grid as the target grid (S2704). In the example of FIGS. 28 and 29, the grid having the largest value of the shortest distance is the grid 2867 in which the distance 2887 to the electronic sticky note cluster 806 is 288.275 as the shortest distance.

  The widget placement unit 342 determines whether or not the shortest distance of the target grid is greater than or equal to the average nearest distance between electronic sticky note clusters (S2705). For example, the average nearest distance between electronic sticky note clusters is 274.081, and the shortest distance of the grid 2867 is 288.275, so that it is determined to be equal to or larger than the average nearest distance between electronic sticky note clusters.

  If the shortest distance is equal to or greater than the average closest distance between electronic sticky note clusters (YES in S2705), widget arrangement unit 342 is located on the intersection of the straight line from local board center coordinate 993 to the target grid and shortcut widget display frame 994. An empty area shortcut widget corresponding to the target grid is arranged (S2711). Then, the widget placement unit 342 obtains the distance from the target grid for all grids, and compares the distance with the shortest distance obtained for each grid in S2703. When the shortest distance is longer than the distance to the target grid, the widget placement unit 342 updates the shortest distance with the value of the distance to the target grid (S2712). For example, as shown in FIG. 29C, the distance between the grid 2867 and the grid 2851 is 623.025. Since the shortest distance of the original grid 2851 is 54.263, it is not updated. Similarly, the widget arrangement unit 342 performs update processing for the shortest distance for all grids. As a result, the value of the shortest distance with respect to the grid 2866 is updated from 270.83 to 256.000. Also, the value of the shortest distance to the grid 2867 is updated from 288.275 to 0.000.

  Then, the widget arrangement unit 342 repeats the processing from the search for the target grid (S2704) again. In S2704, since the shortest distance 256.000 of the grid 2866 is the maximum, the grid 2866 is selected as the target grid. Since the shortest distance of grid 2867 is less than the average distance between electronic sticky note clusters (NO in S2705), the iterative calculation ends here.

  By repeating the above processing, the free area shortcut widget is added so that the shortest distance between the grids associated with the electronic sticky note clusters is less than the average distance between the electronic sticky note clusters.

  According to the present embodiment, a new empty area shortcut widget can be arranged in a low density area where electronic sticky notes are arranged. Thereby, in addition to the effect of 1st embodiment, the simple means to move an electronic sticky note to a vacant area can be provided.

<Fourth embodiment>
In the first to third embodiments, the basic processing flow when there is no meta information in each electronic sticky note has been described. Furthermore, there is another embodiment having meta information for each electronic sticky note. As a fourth embodiment, an embodiment in which meta information is used will be described.

  For example, meta information can be recognized by recognizing a keyword written on a physical sticky note, by recognizing an object from a picture written on a physical sticky note, or by recognizing the voice at the time of writing. Can be attached to electronic sticky notes. The content of the meta information used in the present embodiment may be anything.

  In the present embodiment, based on the meta information of the electronic sticky note associated with the electronic sticky note cluster, meta information representing the electronic sticky note cluster is derived and utilized. As one means, the meta information that is common among the electronic sticky notes at a ratio equal to or higher than a certain threshold among the meta information of the associated electronic sticky notes can be used as meta information representing the electronic sticky note cluster. . Or you may obtain | require meta information peculiar to the electronic sticky note cluster from the meta information provided to the electronic sticky note linked | related with each electronic sticky note cluster. By considering the electronic tag cluster as a sentence and the associated meta information as an appearance word and applying the TF-IDF method, meta information characteristic of the electronic tag cluster may be obtained.

  Here, an application example of four pieces of meta information will be described.

  As a first example, meta information representing an electronic sticky note cluster is displayed as a meta information widget to conference participants and provided as visual information. A display example of the meta information widget is shown in FIG. The widget arrangement unit 342 arranges meta information representing the electronic tag cluster as a meta information widget in the vicinity of the shortcut widget.

  The widget placement unit 342 places the meta information widgets 3001, 3002, and 3004 to 3007 on the local board 350 in association with the shortcut widgets 971, 972, and 974 to 977. The arrangement coordinates of the meta information widgets 3001, 3002, and 3004 to 3007 are determined according to the arrangement coordinates of the associated shortcut widgets 971, 972, and 974 to 977. The meta information widgets 3002 and 3006 associated with the shortcut widgets 972 and 976 arranged on the upper side of the shortcut widget display frame 994 are arranged below the shortcut widget. Similarly, the meta information widget is arranged at a coordinate that does not overlap with the associated shortcut widget and is inside (a direction close to the local board center coordinate 993).

  With the meta information widget, the features in the electronic sticky note cluster can be provided to conference participants as more specific visual information. This makes it possible to select a more appropriate electronic sticky note cluster as a destination from a plurality of electronic sticky note clusters.

  As a second example, it is possible to propose a destination to a conference participant while the electronic sticky note widget is moving. For example, the meta information of the electronic sticky note associated with the moving electronic sticky note widget is compared with the meta information representing each electronic sticky note cluster. Then, the electronic sticky note cluster that most closely matches is selected as the destination recommended electronic sticky note cluster. There may be one or more destination-recommended electronic sticky note clusters. Then, the conference participant is notified by highlighting the shortcut widget associated with the destination recommended electronic sticky note cluster by thickening the border or converting it to another color. This highlighting may be performed during normal display or when displayed in a mini-map layout.

  Thereby, from the electronic sticky note conference terminal side, it is possible to propose to the conference participants the destination of the shortcut widget based on the meta information of the moving electronic sticky note. This makes it possible to select a more appropriate electronic sticky note cluster as a destination from a plurality of electronic sticky note clusters.

  As a third example, in electronic sticky note movement using a shortcut widget, it is also possible to use meta information for determining the reference of the destination coordinates. Among the plurality of electronic sticky notes associated with the electronic sticky note cluster, there is a possibility that there are those having the same meta information as the electronic sticky note that is about to move. Therefore, an electronic sticky note associated with the electronic sticky note cluster and having the same meta information as the electronic sticky note to be moved is obtained. Based on the central coordinates of the electronic sticky note group having the common meta information, the movement destination of the electronic sticky note to be moved can be determined. For an electronic sticky note having no meta information, the coordinates of the electronic sticky note cluster may be used with the electronic sticky note using the shortcut widget as the reference of the movement destination.

  Thereby, for example, when arranging electronic sticky notes in the electronic sticky note cluster, it is possible to reduce the time and effort of the conference participant when finely adjusting the position of the electronic sticky note moved using the shortcut widget.

  As a fourth example, in electronic sticky note movement using a shortcut widget, meta information addition can be proposed from the electronic sticky note conference terminal. When an electronic sticky note is moved using a shortcut widget, a case where the electronic sticky note does not have meta information representative of the electronic sticky note cluster is assumed. At this time, the event management unit 341 automatically assigns meta information representing the electronic sticky note cluster to the electronic sticky note.

  As a result, it is possible to provide a conference participant with means for simplifying the addition of meta information to the electronic sticky note. At this time, whether to add meta information when the electronic sticky note widget is moved may be presented to a conference participant using a confirmation dialog, and may be given based on the result. Alternatively, based on whether the electronic sticky note to be moved has some kind of meta information, it may take the form of giving if there is no meta information.

  Thereby, when adding meta information to an electronic sticky note, it is possible to reduce time and effort of a conference participant who selects and designates appropriate meta information from a plurality of meta information.

<Other embodiments>
The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

Claims (39)

An electronic sticky note conference terminal that arranges one or more electronic sticky notes on a virtual board and shares information among a plurality of terminals,
Holding means for holding one or more electronic sticky notes including position information on the virtual board;
Clustering means for generating an electronic sticky note cluster by performing clustering based on the position of the electronic sticky note, and calculating the position of the electronic sticky note cluster on the virtual board;
Display means for arranging and displaying an object corresponding to the electronic sticky note and the electronic sticky note cluster on the virtual board according to a set display condition;
Operation means for receiving an operation on the object displayed on the display means,
When the display means displays a partial area of the virtual board, an electronic sticky note cluster to which an electronic sticky note that is not arranged in the displayed area belongs as an object corresponding to the electronic sticky note cluster. An electronic sticky note conference terminal, characterized by displaying a shortcut object to the position of. The operation means includes
When the operation target is an object corresponding to the electronic sticky note and the content of the accepted operation is movement, it is determined whether or not there is a shortcut object at the coordinates of the movement destination,
When there is a shortcut object at the coordinates of the movement destination, the position of the electronic sticky note of the operation target is determined based on the position of the electronic sticky note cluster corresponding to the shortcut object,
2. The electronic sticky note conference terminal according to claim 1, wherein when there is no shortcut object at the coordinates of the movement destination, the position of the electronic sticky note to be operated is determined as the coordinates of the movement destination.   The electronic sticky note conference terminal according to claim 1, wherein the clustering unit uses a non-hierarchical clustering method.   4. The electronic sticky note conference terminal according to claim 3, wherein the non-hierarchical clustering method is a k-means method or an x-means method.   The display condition includes coordinates on the virtual board as a center coordinate when the display means displays, and an enlargement ratio of the virtual board when the display means displays. The electronic sticky note conference terminal according to any one of claims 1 to 4.   When the operation target of the received operation is a shortcut object, the operation means changes the display condition based on the content of the received operation and information on the electronic sticky note cluster corresponding to the shortcut object. The electronic sticky note conference terminal according to claim 5.   7. The electronic sticky note conference terminal according to claim 6, wherein the operation means changes a center coordinate when the display means displays based on a position of an electronic sticky note cluster corresponding to the shortcut object.   The operation means changes the center coordinates when the display means displays based on the position of the electronic sticky note cluster corresponding to the shortcut object so as to include a range where the electronic sticky note belonging to the electronic sticky note cluster is arranged. The electronic sticky note conference terminal according to claim 6, wherein the enlargement ratio is changed.   The electronic sticky note conference terminal according to any one of claims 6 to 8, wherein the operation means receives an operation of changing the display condition by a double tap or a long tap.   2. The display unit according to claim 1, wherein the display unit determines a display frame in an area displayed by the display unit based on the display condition, and determines a position of the shortcut object based on the display frame. 9. The electronic sticky note conference terminal according to any one of 9 above.   The position of the shortcut object is determined on the basis of the intersection of the straight line passing through the center coordinates of the area displayed by the display means and the coordinates of the electronic sticky note cluster corresponding to the shortcut object and the display frame. The electronic sticky note conference terminal according to claim 10, characterized in that:   The display means displays a shortcut object corresponding to the electronic sticky note cluster when all the electronic sticky notes belonging to the electronic sticky note cluster are not included in an area inside the display frame. 10. The electronic sticky note conference terminal according to 10.   When the operation means detects that a specific gesture has been performed, the display means hides objects corresponding to all electronic sticky notes and displays shortcut objects corresponding to all electronic sticky note clusters. The electronic sticky note conference terminal according to any one of claims 1 to 12, wherein the electronic sticky note conference terminal is switched to a mini-map display.   The operation means may detect the specific gesture when the operation target is an object corresponding to the electronic sticky note and the content of the accepted operation is when the object corresponding to the electronic sticky note is moving. The electronic sticky note conference terminal according to claim 13, wherein the electronic sticky note conference terminal can be used.   The electronic sticky note conference terminal according to any one of claims 1 to 14, further comprising setting means for receiving setting of display conditions for displaying the shortcut object. The timing for displaying the shortcut object is as follows:
Always display,
Display when moving the object corresponding to the electronic sticky note, or
The display is performed when the object corresponding to the electronic sticky note is moved, and when the coordinates when moving are within a range determined based on the display condition. Item 16. The electronic sticky note conference terminal according to any one of Items 1 to 15. The size to display the shortcut object is
A certain size, or
16. The size according to claim 1, wherein the size is determined in accordance with a distance between a center coordinate of an area displayed by the display means and a coordinate of an electronic tag cluster corresponding to the shortcut object. The electronic sticky note conference terminal according to any one of the above. A first reference distance for determining a size for displaying a shortcut object, and a second reference distance that is larger than the first reference distance,
When the distance between the coordinates of the electronic sticky note cluster corresponding to the shortcut object and the center coordinates of the area displayed by the display means is equal to or smaller than the first reference distance, the size of the shortcut object is set to the first size. Decide
When the distance between the coordinates of the electronic sticky note cluster corresponding to the shortcut object and the center coordinates of the area displayed by the display means is equal to or larger than the second reference distance, the size of the shortcut object is set to the first size. Decide on a second size larger than
When the distance between the coordinates of the electronic sticky note cluster corresponding to the shortcut object and the center coordinates displayed by the display means is larger than the first reference distance and smaller than the second reference distance, The electronic sticky note conference terminal according to claim 17, wherein the size of the shortcut object is determined in a range between the first size and the second size according to a distance. When a shortcut object is displayed, as an image of the shortcut object,
Among the electronic sticky notes belonging to the electronic sticky note cluster corresponding to the shortcut object, an image of an electronic sticky note having coordinates closest to the coordinates of the electronic sticky note cluster is displayed.
Images of the electronic sticky notes belonging to the electronic sticky note cluster corresponding to the shortcut object are switched and displayed at regular time intervals, or images of the electronic sticky notes belonging to the electronic sticky note cluster corresponding to the shortcut object are displayed in the electronic sticky note The electron according to any one of claims 1 to 15, wherein the electron is switched and displayed at a time interval determined according to the distance between the coordinates of the cluster and the coordinates of each electronic sticky note. Sticky note conference terminal. A first reference value for determining a time interval for switching and displaying an image of the shortcut object, and a second reference value that is a value larger than the first reference value;
When the distance between the coordinates of the electronic sticky note cluster corresponding to the shortcut object and the coordinates of the electronic sticky note belonging to the electronic sticky note cluster is less than or equal to the first reference value, the time interval for displaying the image of the electronic sticky note is the first time interval. To determine the time interval of
When the distance between the coordinates of the electronic sticky note cluster corresponding to the shortcut object and the coordinates of the electronic sticky note belonging to the electronic sticky note cluster is equal to or greater than the second reference value, the time interval for displaying the image of the electronic sticky note is set to the second time interval. To determine the time interval of
If the distance between the coordinates of the electronic sticky note cluster corresponding to the shortcut object and the coordinates of the electronic sticky note belonging to the electronic sticky note cluster is larger than the first reference value and smaller than the second reference value, the distance 20. The electronic sticky note conference terminal according to claim 19, wherein a time interval for displaying an image of the electronic sticky note is determined in a range between the first time interval and the second time interval according to . The position to display the shortcut object is
On the display frame in the area displayed by the display means determined based on the display conditions, or
The electronic sticky note conference terminal according to any one of claims 1 to 15, wherein the electronic sticky note conference terminal is any one of a region from an end of a region displayed by the display unit to the display frame.   When the shortcut object is displayed in the area from the edge of the area displayed by the display means to the display frame, the center coordinates of the area displayed by the display means and the coordinates of the electronic sticky note cluster corresponding to the shortcut object The position of the shortcut object is determined based on the distance from the intersection of the straight line between the display frame and the display frame to the coordinates of the electronic sticky note cluster corresponding to the shortcut object. Electronic sticky note conference terminal. When the shortcut object overlaps when arranging a plurality of shortcut objects, the display means
Do not correct the placement position,
Correct the position of the shortcut object at the position that does not overlap,
The images of the plurality of shortcut objects are exchanged to the forefront at a certain time interval and displayed, or the images of the plurality of shortcut objects are displayed on the electronic sticky note cluster coordinates corresponding to each of the plurality of shortcut objects and the display means. The method according to any one of claims 1 to 15, wherein the display is performed by switching to the forefront at a time interval determined according to the distance from the center coordinate of the displayed area. Electronic sticky note conference terminal.   When the display unit corrects the arrangement position when a plurality of shortcut objects are superimposed, from the shortcut object corresponding to the electronic sticky note cluster whose distance from the center coordinate of the area displayed on the display unit is short The electronic sticky note conference terminal according to claim 23, wherein the placement and the placement position are corrected in order.   When the display unit corrects the arrangement position when the shortcut object is superimposed, the radius is set with the coordinates of the original shortcut object as the center point, and the arrangement position after the correction is performed with the coordinates on the arc by the radius 25. The electronic sticky conference terminal according to claim 23, wherein the electronic sticky note conference terminal according to claim 23 or 24, wherein the placement is repeated at coordinates on the arc while changing the value of the radius to increase until the superposition can be removed.   3. The electronic device according to claim 1, wherein the display unit calculates an empty area in the virtual board from the distribution of the electronic sticky note cluster, and arranges and displays a shortcut object to the empty area. 4. Sticky note conference terminal.   The said display means calculates the distance with the electronic sticky note cluster which is the nearest in each electronic sticky note cluster, and specifies the said empty area | region using the average value of the calculated distance. Electronic sticky note conference terminal described. The virtual board has a plurality of grids;
The display means includes
For each of the plurality of grids, calculate the distance to the nearest electronic sticky note cluster,
Identify the grid with the largest value of the calculated distance,
On the intersection of the straight line from the center coordinates of the area displayed by the display means to the coordinates of the specified grid and the display frame in the area displayed by the display means determined based on the display conditions 28. The electronic sticky note conference terminal according to claim 26 or 27, wherein a shortcut object corresponding to the empty area is displayed.   The electronic sticky note conference terminal according to claim 28, wherein the plurality of grids are arranged at equal intervals on the virtual board. Electronic sticky notes also have meta information,
30. The electronic apparatus according to claim 1, further comprising a determining unit that determines meta information of the electronic sticky note cluster based on meta information of the electronic sticky note cluster associated with the electronic sticky note cluster. Sticky note conference terminal.   The electronic sticky note conference terminal according to claim 30, wherein the display means arranges and displays an object corresponding to the meta information of the electronic sticky note cluster determined by the determining means.   32. The electronic sticky note conference terminal according to claim 31, wherein the object corresponding to the meta information is arranged based on the coordinates of the corresponding electronic sticky note cluster.   When the operation target is an object corresponding to an electronic sticky note and the content of the accepted operation is movement, the operation means recommends an electronic sticky note cluster that matches the meta information of the electronic sticky note of the operation target as a destination. 33. The electronic sticky note conference terminal according to any one of claims 30 to 32, wherein the electronic sticky note cluster is specified as an electronic sticky note cluster.   34. The electronic sticky note conference terminal according to claim 33, wherein the display unit highlights a shortcut object corresponding to the electronic sticky note cluster specified as the recommended electronic sticky note cluster of the movement destination.   When the operation target is an object corresponding to the electronic sticky note and the movement destination is a shortcut object, the operation unit includes the electronic sticky note belonging to the electronic sticky note cluster corresponding to the shortcut object, One or a plurality of electronic sticky notes having meta information that matches the meta information of the electronic sticky note of the operation target is specified, and the center coordinate of the coordinates of the specified one or plural electronic sticky notes is moved. The electronic sticky note conference terminal according to any one of claims 30 to 32, wherein the electronic sticky note conference terminal is determined as a destination.   When the operation target is an object corresponding to the electronic sticky note and the movement destination is a shortcut object, the operation unit supports the shortcut object after moving the operation target electronic sticky note 33. The electronic sticky note conference terminal according to any one of claims 30 to 32, wherein the provision of meta information is presented to the electronic sticky note to be operated based on the meta information of the electronic sticky note cluster to be operated. A method for controlling an electronic sticky note conference terminal in which one or more electronic sticky notes are arranged on a virtual board and information is shared among a plurality of terminals,
A holding step of holding one or more electronic sticky notes including position information on the virtual board in a storage unit;
A clustering step of generating an electronic sticky note cluster by performing clustering based on the position of the electronic sticky note, and calculating a position of the electronic sticky note cluster on the virtual board;
A display step of arranging the objects corresponding to the electronic sticky note and the electronic sticky note cluster on the virtual board according to a set display condition and displaying the virtual sticky note on the display unit;
An operation step of accepting an operation on the object displayed on the display unit,
In the display step, when displaying a partial area of the virtual board, an electronic sticky note cluster to which an electronic sticky note that is not arranged in the displayed area belongs as an object corresponding to the electronic sticky note cluster A control method comprising displaying a shortcut object at the position of Computer
Holding means for holding one or more electronic sticky notes including position information on a virtual board;
Clustering means for generating an electronic sticky note cluster by performing clustering based on the position of the electronic sticky note, and calculating the position of the electronic sticky note cluster on the virtual board;
Display means for arranging and displaying objects corresponding to the electronic sticky note and the electronic sticky note cluster on the virtual board according to a set display condition;
Function as an operation means for receiving an operation on the object displayed on the display means;
When the display means displays a partial area of the virtual board, an electronic sticky note cluster to which an electronic sticky note that is not arranged in the displayed area belongs as an object corresponding to the electronic sticky note cluster. An electronic sticky note conference terminal program displaying a shortcut object to the position of   A computer-readable storage medium storing the electronic sticky note conference terminal program according to claim 38.

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