JP4956591B2 - Selection device, selection method, and program - Google Patents

Description

  The present invention realizes a selection device, a selection method, and a computer suitable for enabling various inputs by selecting a leaf node from a tree structure with only one type of operation by a user. Regarding the program.

  In general computers, characters are input using a keyboard, but game devices generally do not have a keyboard. Therefore, a technique has been proposed in which characters are input using two operation sticks as disclosed in Patent Document 1 in order to input characters as in a user name required in a game. .

JP 2004-110199 A

  However, there is a strong demand for easier input. There is also a desire to be able to input various types of information with only one type of operation in consideration of hardware restrictions and measures for persons with disabilities. The present invention solves the above-described problems, and a selection device suitable for enabling various inputs by selecting a leaf node from a tree structure with only one type of operation by a user. The present invention relates to a method and a program for realizing these methods on a computer.

  A selection device according to a first aspect of the present invention is a selection device that allows a user to select any leaf node from a tree structure including a plurality of nodes, and includes a storage unit, a display unit, a detection unit, an output unit, and an update. Are configured as follows.

  Here, the tree structure is a structure in which one node has one or more nodes, each of the one or more nodes further has one or more nodes, and branches as the hierarchy deepens. Say. If attention is paid to a certain node in the tree structure, a node possessed by the focused node is referred to as a child node, and an upper node having the focused node is referred to as a parent node. The highest node in the tree structure is called a root node, and the terminal node having no child nodes is called a leaf node. A node having a child node (a node other than a leaf node) is referred to as an internal node (the root node is therefore an internal node). Arbitrary items are assigned to each node, and generally, an upper node is assigned an item having a higher abstraction level than a lower node. For example, when a plurality of items to be used by a character in a game are organized in a tree structure, “weapons”, “armor”, “nodes” (nodes) that are subordinate to the top node (root node) “item”, And "magic" is assigned. Furthermore, “gun”, “sword”, and “Koryo” are assigned to the “weapon” item as child nodes.

  The storage unit stores any of a plurality of nodes included in the tree structure as a node of interest.

  For example, in the tree structure of the item, if the user selects a “weapon” node, the storage unit stores a “weapon” node as a node of interest.

  The display unit displays the child nodes of the node of interest as candidate nodes in order with the passage of time.

Here, the candidate nodes are nodes that can be selected by the user at the present time.
For example, when the user selects the “weapon” node, the “gun”, “sword”, and “撒 ryo” child nodes of “weapon” are displayed on the screen as selectable items one by one in order. The

  A detection part detects the presence or absence of the instruction | indication input from a user.

  For example, when the user presses a button to select the item “weapon” displayed on the display unit, the detection unit detects the pressing of the button.

  When it is detected that an instruction is input, the output unit outputs the child node as a selection result when the child node displayed as a candidate node by the display unit at the time of the detection is a leaf node.

  For example, it is assumed that the button press by the user is detected, and the item “gun” is displayed on the display unit when the button is detected. Since the “gun” that is a child node of “weapon” is a leaf node, the output unit outputs the item “gun” as a selection result.

  When the update unit detects that an instruction is input, if the child node displayed as a candidate node by the display unit at the time of the detection is not a leaf node, the update unit causes the child node to be a new node of interest. The storage unit is updated.

  For example, it is assumed that the button press by the user is detected, and the item “weapon” is displayed on the display unit at the time of detection. In this case, “item”, which is the parent node of “weapon”, is stored in the storage unit as the attention node. The output unit updates the storage unit with “weapon” as a new attention node.

  According to the present invention, an item can be input by selecting a leaf node from a tree structure with only one type of operation such as pressing a button.

  Further, the internal node included in the tree structure has a node representing cancellation as a child node, and when it is detected that an instruction is input, the child node displayed as a candidate node by the display unit at the time of the detection May be a child node representing cancellation, the updating unit may update the storage unit so that the parent node of the node of interest becomes a new node of interest.

  For example, the current attention node is “weapon”, and its child nodes “gun”, “sword”, “撒 ryo”, and “cancel” (node indicating cancellation) are displayed one by one in order. . Assuming that “cancel” is displayed on the display unit at the point when the user presses the button, the update unit updates the storage unit with “item”, which is the parent node of “weapon”, as the node of interest. As a result, “weapon”, “armor”, and “magic”, which are child nodes of “item”, are displayed on the display unit one by one in order.

  The present invention relates to a preferred embodiment of the above invention, and even if a user selects a node by mistake, an erroneous input can be canceled by only one type of operation.

  Also, when it is detected that an instruction has been input, if the child node displayed as a candidate node by the display unit at the time of the detection is a child node representing cancellation and the node of interest is a root node, output The unit may output that the user has not made a selection.

  For example, “item” (root node) is an attention node, and “weapon”, “armor”, “magic”, and “cancel” that are child nodes of “item” are sequentially displayed on the display unit. Assuming that “cancel” is displayed on the display unit at the point when the user presses the button, the output unit outputs a message such as “no selection”.

  The present invention relates to a preferred embodiment of the above invention, and selection of input can be canceled by only one kind of operation such as pressing a button.

  Further, the root node may not have a node representing cancellation as a child node.

  For example, “item” (root node) is the attention node, and “weapon”, “armor”, and “magic” that are child nodes of “item” are sequentially displayed on the display unit.

  The present invention relates to a preferred embodiment of the above-described invention, and allows the user to always select something.

  Further, the detection unit may detect that an instruction is input when the user performs a pressing operation on a button, key, switch, or contact sensor.

  That is, the detection unit detects only the pressing operation of any button or the like provided in the selection device, and does not detect which button is pressed.

  The present invention relates to a preferred embodiment of the present invention, and does not require a plurality of buttons or the like, and a leaf node can be selected by only one type of operation by the user.

  Further, the length of time for which the display unit displays one candidate node may be made longer according to the elapsed time since the node of interest was updated.

  For example, it is assumed that the node of interest is updated from “item” to “weapon”, and “gun”, “sword”, and “撒 ryo”, which are child nodes of “weapon”, are displayed one by one. The display unit first displays each node for 1 second, and displays each node for 2 seconds when a predetermined time elapses after the node of interest is updated to “weapon”.

  The present invention relates to a preferred embodiment of the above-described invention, and the user can quickly select the items that can be selected first and then select the items.

  In addition, the length of time for which the display unit displays one candidate node may be determined based on the selection results output in the past by the output unit.

  For example, the length of time for which the display unit displays one item is increased as the frequency of selection as a selection result increases. In the above example, if the “sword” item is selected most frequently from among the “gun”, “sword”, and “撒 ryo” items, then the “gun” item is selected the most, for example, display The section displays the item “gun” for 2 seconds, the item “sword” for 3 seconds, and the item “撒 ryo” for 1 second.

  The present invention relates to a preferred embodiment of the invention described above, and by displaying child nodes in consideration of past selection results, the convenience of selection by the user can be improved.

  The order in which the display unit displays the child nodes of the node of interest as candidate nodes may change based on the selection results output in the past by the output unit.

  For example, the order of the items displayed by the display unit one by one is displayed from the item that is selected more frequently as the selection result. In the above example, if “sword” is selected most frequently from among the items of “gun”, “sword”, and “撒 ryo”, and then “gun” is selected many times, the display unit is “sword”, Display one by one in the order of “Gun” and “Soro”. As a result, it is possible to shorten the time until an item that is selected many times is displayed.

  The present invention relates to a preferred embodiment of the invention described above, and by displaying child nodes in consideration of past selection results, the convenience of selection by the user can be improved.

  Each child node of the root node of the tree structure is associated with a row of the table in which characters are arranged in a predetermined array, and each child node of the node associated with the row of the table is included in each column of the row. It may be a leaf node associated with a character.

  Taking the hiragana syllabary table as an example, the item “letter” is assigned to the root node, and the child nodes of the root node are the hiragana, “a”, “ka”, “sa” "," "Ta", "na", ... "wa" are assigned. Furthermore, hiragana, “a”, “i”, “u”, “e”, “o”, etc. included in each row are assigned to these nodes as child nodes (leaf nodes).

  The present invention relates to a preferred embodiment of the above invention, and can input characters by only one kind of operation such as pressing a button.

  A selection method according to another aspect of the present invention allows a user to select any leaf node from a tree structure including a plurality of nodes, a storage unit, a display unit, a detection unit, an output unit, an update unit, The selection method is executed by a selection device including a storage process, a display process, a detection process, an output process, and an update process, and is configured as follows.

  In the storing step, the storage unit stores any one of a plurality of nodes included in the tree structure as a node of interest.

  In the display step, the display unit displays the child nodes of the node of interest as candidate nodes in order with the passage of time.

  In the detection step, the detection unit detects the presence or absence of an instruction input from the user.

  In the output process, when the output unit detects that an instruction is input, if the child node displayed as a candidate node by the display unit at the time of the detection is a leaf node, the child node is selected. Output as.

  In the updating process, when the updating unit detects that an instruction is input, if the child node displayed as a candidate node by the display unit at the time of the detection is not a leaf node, the child node is newly noticed. The storage unit is updated to be a node.

  A program according to another aspect of the present invention is configured to cause a computer to function as the selection device and to cause the computer to execute the selection method.

  The program of the present invention can be recorded on a computer-readable information storage medium such as a compact disk, flexible disk, hard disk, magneto-optical disk, digital video disk, magnetic tape, and semiconductor memory.

  According to the present invention, a selection device and a selection method suitable for enabling various inputs by selecting a leaf node from a tree structure with only one type of operation by a user, and these are performed by a computer. A program to be realized can be provided.

1 is a schematic diagram showing a schematic configuration of a portable information processing apparatus according to an embodiment. It is a figure for demonstrating the function structure of the selection apparatus of embodiment. It is a figure which shows the example of the tree structure of embodiment. An example in which the selection method of the present embodiment is realized in a portable information processing device will be described. (A), (b), (c), and (d) are figures which show the example of a display of the candidate node which the display part of this embodiment displays. It is a figure which shows the relationship between the time when a candidate node is displayed, and the time after an attention node is updated. (A), (b), (c), and (d) are figures which show the example of a display of the candidate node which the display part of this embodiment displays. (A), (b), (c), and (d) are figures which show the example of a display of the candidate node which the display part of this embodiment displays. It is a flowchart for demonstrating the process which each part of the selection apparatus of embodiment performs. (A), (b), (c), and (d) are figures which show the example of a display of the child node which the display part of this embodiment displays. It is a figure which shows the example of a display of the child node which the display part of this embodiment displays. It is a figure which shows the other example of the tree structure of embodiment. (A), (b), (c), and (d) are figures which show the example of a display of the candidate node which the display part of this embodiment displays.

  Embodiments of the present invention will be described below. In the following, for ease of understanding, an embodiment in which the present invention is applied to a portable information processing apparatus will be described. However, the present invention is similarly applied to various computers, PDAs, mobile phones, music players, and the like. can do. That is, the embodiment described below is for explanation, and does not limit the scope of the present invention. Therefore, those skilled in the art can employ embodiments in which each or all of these elements are replaced with equivalent ones, and these embodiments are also included in the scope of the present invention.

(Embodiment)
FIG. 1 is a schematic diagram illustrating a schematic configuration of a portable information processing device 1 in which a selection device according to an embodiment of the present invention is realized.
The portable information processing apparatus 1 includes a processing control unit 10, a connector 11, a cartridge 12, a wireless communication unit 13, a communication controller 14, a sound amplifier 15, a speaker 16, a microphone 17, and operation keys 18. , A first display unit 19, a second display unit 20, and a touch panel 21.

  The processing control unit 10 includes a CPU (Central Processing Unit) core 10a, an image processing unit 10b, a VRAM (Video Random Access Memory) 10c, a WRAM (Work RAM) 10d, an LCD (Liquid Crystal Display) controller 10e, A touch panel controller 10f.

  The CPU core 10a controls the operation of the entire portable information processing apparatus 1, is connected to each component, and exchanges control signals and data. Specifically, a program and data stored in a ROM (Read Only Memory) 12a in the cartridge 12 are read out with the cartridge 12 mounted in the connector 11, and predetermined processing is executed.

  The image processing unit 10b processes the data read from the ROM 12a in the cartridge 12 and the data processed by the CPU core 10a, and stores the processed data in the VRAM 10c.

The VRAM 10c is a frame memory that stores information for display, and stores image information processed by the image processing unit 10b and the like.
The WRAM 10d stores work data and the like necessary for the CPU core 10a to execute various processes according to the program.

  The LCD controller 10e controls the first display unit 19 and the second display unit 20 to display a predetermined display image. For example, the LCD controller 10 e converts the image information stored in the VRAM 10 c into a display signal at a predetermined synchronization timing and outputs the display signal to the first display unit 19. The LCD controller 10e displays a predetermined instruction icon or the like on the second display unit 20.

  The touch panel controller 10f detects a touch (touch) on the touch panel 21 with a touch pen or a user's finger. For example, in the state where a predetermined instruction icon or the like is displayed on the second display unit 20, a contact on the touch panel 21 and its position are detected.

  The connector 11 is a terminal that can be detachably connected to the cartridge 12, and transmits / receives predetermined data to / from the cartridge 12 when the cartridge 12 is connected.

The cartridge 12 includes a ROM 12a and a RAM (Random Access Memory) 12b.
The ROM 12a stores a program for realizing the game and image data, sound data, and the like accompanying the game.
The RAM 12b stores various data indicating the progress of the game.

The wireless communication unit 13 is a unit that performs wireless communication with the wireless communication unit 13 of another portable information processing apparatus 1 and transmits / receives predetermined data via an antenna (not shown) (not shown). .
The wireless communication unit 13 can also perform wireless LAN communication with a predetermined access point. The wireless communication unit 13 is assigned a unique MAC (Media Access Control) address.

  The communication controller 14 controls the wireless communication unit 13 and mediates communication performed between the processing control unit 10 and the processing control unit 10 of another portable information processing device 1 according to a predetermined protocol.

  The sound amplifier 15 amplifies the audio signal generated by the processing control unit 10 and supplies it to the speaker 16.

  The speaker 16 is composed of, for example, a stereo speaker, and outputs predetermined music sound, sound effect, and the like according to the audio signal amplified by the sound amplifier 15.

  The microphone 17 receives an analog signal such as a user's voice, and the received signal is processed by the processing control unit 10 such as mixing.

  The operation key 18 includes a direction key 22 and a button 23 that are appropriately arranged in the portable information processing apparatus 1 and receives a predetermined instruction input according to a user operation. The operation key 18 includes a button for adjusting the volume, a knob, and the like.

The 1st display part 19 and the 2nd display part 20 consist of LCD etc., are controlled by the LCD controller 10e, and display a game image etc. suitably.
Note that the second display unit 20 displays an instruction icon or the like for inputting an operation instruction from the user by touching the touch panel 21.

The touch panel 21 is disposed so as to be superimposed on the front surface of the second display unit 20 and receives an input by touch of a touch pen or a user's finger.
The touch panel 21 includes, for example, a pressure-sensitive touch sensor panel and the like, detects the pressure of the user's finger and the like, and detects the contact state and the transition from the contact state to the non-contact state. In addition, the touch panel 21 may detect contact with a user's finger or the like from a change in capacitance or the like.

  FIG. 2 is a diagram illustrating a functional configuration of the selection device according to the present embodiment. Hereinafter, a description will be given with reference to FIG.

  The selection device 200 of this embodiment includes a storage unit 201, a display unit 202, a detection unit 203, an output unit 204, and an update unit 205.

The storage unit 201 stores which node the user has selected from among a plurality of nodes included in the tree structure, that is, which node is the target node.
Therefore, the CPU core 10a functions as the storage unit 201 in cooperation with the WRAM 10d.

Here, an example of a tree structure in the present embodiment is shown in FIG. The tree structure in FIG. 3 represents items related to items in a tree structure. The root node is an item of “item”, and the item of “item” has “weapon”, “armor”, “magic”, and “cancel” items as child nodes. Furthermore, the item “weapon” is a child node, “gun”, “sword”, “撒 ryo”, and “cancel” items, and the item “armor” is a child node, “shield”, “armor”, The item “magic” has items such as “fly”, “stop”, and “cancel” as child nodes. Also, “gun”, “sword”, “撒 ryo”, “shield”, “armor”, “fly”, “stop”, and “cancel” are leaf nodes because they have no child nodes.
For example, when the item selected by the user is “weapon”, the storage unit 201 stores the “weapon” node as a node of interest.
From the viewpoint of the “weapon” of the target node, the parent node is an item of “item”, and the child nodes are items of “gun”, “sword”, “撒 ryo”, and “cancel”.

The display unit 202 displays the child nodes of the node selected by the user (target node) one after another as the next selectable node (candidate node).
Therefore, the CPU core 10a functions as the display unit 202 in cooperation with the image processing unit 10b, the VRAM 10c, the LCD controller 10e, the first display unit 19, and the second display unit 20.

  For example, if “item” is a node of interest, the display unit 202 sets “weapon”, “armor”, “magic”, and “cancel”, which are child nodes of “item”, as candidate nodes one by one in order. indicate. FIG. 4 shows an example of how candidate nodes are displayed by the display unit 202. For example, the input field 401 and a list of child nodes of the node of interest (child node list panel 402) are displayed on the first display unit 19 of the portable information processing device 1. The input column 401 is fixed at a predetermined position in the first display unit 19, and the child node list panel 402 is moved upward with respect to the input column 401 in order from FIG. 5A to FIG. 5D. Moving. When it moves to the lowest item (FIG. 5D), it returns to FIG. 5A again. Here, the nodes displayed in the input field 401 in the child node list panel 402 are candidate nodes 403 to 406. In FIG. 5 (a), “weapon” is a candidate node, in FIG. 5 (b) “armor”, in FIG. 5 (c) “magic”, in FIG. 5 (d) “cancel”. Is a candidate node.

  Moreover, the display part 202 can change the order which displays a child node as a candidate node, and a candidate node based on the past selection result. For example, the display time of the candidate node is changed based on the time after the node of interest stored in the storage unit 201 is updated by the update unit 205. For example, as shown in FIG. 6, the display unit 202 displays each item for one second until 4 seconds after the attention node is updated, and 12 seconds after 4 seconds since the attention node is updated. Until then, the display unit 202 displays each item for 2 seconds. Further, for example, the order in which the child nodes are displayed may be displayed in descending order of frequency selected in the past. That is, when the frequency selected in the past is in the order of “magic”, “weapon”, “armor”, and “cancel”, the child node list panel 402 is changed to the child node list panel 702 in FIG. Can do.

When the user performs a pressing operation on a button, key, switch, or contact sensor, the detection unit 203 detects the pressing (instruction input) by the user. For example, as shown in FIGS. 5A to 5D, when the user presses the direction key 22 or the button 23 while the child nodes are sequentially displayed as candidate nodes in the input field 401, the detection is performed. The unit 203 detects the pressing operation.
Therefore, the CPU core 10 a functions as the detection unit 203 in cooperation with the touch panel controller 10 f and the operation key 18.

When the instruction input is detected by the detection unit 203, the output unit 204 outputs the child node as a selection result when the child node displayed as a candidate node on the display unit 202 is a leaf node. For example, assume that the user presses the button 23 when the node of interest is the item “weapon” and the item “gun” is displayed as a candidate node in the input field 801 as shown in FIG. . Since “gun” is a leaf node of the tree structure of FIG. 3, the output unit 204 outputs “gun” as a selection result.
Therefore, the CPU core 10a functions as the output unit 204 in cooperation with the WRAM 10d.

If the child node displayed as a candidate node on the display unit 202 is not a leaf node when the instruction input is detected by the detection unit 203, the update unit 205 sets the child node as a new node of interest as the storage unit 201. Update. For example, it is assumed that the user presses the button 23 when the node of interest is the item “item” and the item “weapon” is displayed as a candidate node in the input field 401 as shown in FIG. . Since “weapon” is not a leaf node of the tree structure in FIG. 3, the updating unit 205 updates the storage unit 201 with “weapon” as a new node of interest.
Therefore, the CPU core 10a functions as the updating unit 205 in cooperation with the WRAM 10d.

  Hereinafter, operations performed by each unit of the selection device 200 will be described. When the selection device 200 is powered on and the selection process is started by the user, the CPU core 10a displays, for example, an image as shown in FIG. 4 on the first display unit 19, and the process shown in the flowchart of FIG. To start. Hereinafter, the tree structure shown in FIG. 3 will be described as an example.

  When the user starts the selection process, the root node, that is, the item “item” is first stored in the storage unit 201 as the node of interest (step S901). Then, the display unit 202 displays the child nodes of the current node of interest one by one (step S902). For example, when the current attention node is “item”, the child nodes of the attention node are “weapon”, “armor”, “magic”, and “cancel”, and the display unit 202 displays these items in FIG. As shown in FIG. 5D from a), they are displayed in order in the input field 401.

  Next, while the child node of the node of interest is displayed on the display unit 202, the detection unit 203 detects the presence / absence of an instruction input by the user (step S903). When the detection unit 203 detects an instruction input by the user (step S903; Yes), the CPU core 10a determines whether the child node displayed as the candidate node is a node representing cancellation (step S904). On the other hand, when the detection unit 203 does not detect an instruction input by the user (step S903; No), the display unit 202 sequentially displays the child nodes (step S902).

  That is, when the detection unit 203 detects a button press by the user, the CPU core 10a indicates that the node displayed in the input field 401 at the timing when the press is detected is a node indicating “cancel” (an item “cancel”, FIG. 3). (Cancellation node 301, 302) or not (step S904). On the other hand, when the detection unit 203 does not detect the pressing of the button by the user, the display unit 202 repeatedly displays from FIG. 5A to FIG.

  When the CPU core 10a determines that the child node displayed as the candidate node is a node representing cancellation (step S904; Yes), the CPU core 10a next determines whether or not the node of interest is a root node. Is determined (step S905). On the other hand, when the CPU core 10a determines that the child node displayed as the candidate node is not a node representing cancellation (step S904; No), the CPU core 10a next displays the child node displayed as the candidate node. It is determined whether or not is a leaf node (step S906).

  That is, when the item “cancel” (cancellation nodes 301 and 302 in FIG. 3) is displayed in the input field 401 at the timing when the press is detected, the CPU core 10a next selects the node of interest (cancellation in FIG. 3). It is determined whether the parent node of the nodes 301 and 302 is the root node. On the other hand, when the item other than “Cancel” is displayed in the input field 401 at the timing when the press is detected, the CPU core 10a next determines whether or not the item displayed in the input field 401 is a leaf node. Judging.

  When the CPU core 10a determines that the node of interest is the root node (step S905; Yes), the output unit 204 outputs that the item has not been selected by the user (step S907). On the other hand, when the CPU core 10a determines that the target node is not the root node (step S905; No), the update unit 205 updates the data in the storage unit 201 with the parent node of the target node as a new target node ( Step S908).

For example, when the “cancel” item corresponding to the cancel node 301 having the tree structure in FIG. 3 is displayed in the input field 401 (FIG. 5D), the CPU core 10 a displays the parent node “item of the cancel node 301. It is determined that “(attention node)” is a root node, and the output unit 204 outputs, for example, a “no selection” message. On the other hand, when the “cancel” item corresponding to the tree-structured cancel node 302 in FIG. 3 is displayed in the input field 401 (FIG. 8D), the CPU core 10a determines that the parent node “weapon” of the cancel node 302 It is determined that “(current attention node) is not a root node, and the update unit 205 updates the data in the storage unit 201 with the parent node (“ item ”) of“ weapon ”as a new attention node.
In addition, after displaying a message such as “no selection” in step S907, the selection process may be terminated.

  When the CPU core 10a determines that the child node displayed as the candidate node is a leaf node (step S906; Yes), the output unit 204 selects the child node (leaf node) displayed as the candidate node. The result is output (step S909). On the other hand, when the CPU core 10a determines that the child node displayed as the candidate node is not a leaf node (step S906; No), the update unit 205 sets the child node displayed as the candidate node as a new attention node. Then, the data in the storage unit 201 is updated (step S910).

  For example, when the item “gun” is displayed in the input field 401 (FIG. 8A), the CPU core 10a determines that the “gun” node (child node) is a leaf node, and the output unit 204 outputs “gun” as a selection result. On the other hand, when the item “weapon” is displayed in the input field 401 (FIG. 5A), the CPU core 10a determines that the item “weapon” is not a leaf node, and newly sets the node “weapon”. It is assumed that the attention node.

  After the output unit 204 outputs a selection result or no selection in step S907 or step S909, the process returns to step S901 again, and selection processing using the target node as a root node is started. In addition, after the update unit 205 updates the storage unit 201 in step S908 or step S910, the process returns to step S902, and processing for displaying a child node of a new node of interest (step S902) is started.

  According to the present invention, an item can be input by selecting a leaf node from a tree structure with only one type of operation by a user. Further, the input can be canceled by only one type of operation. Thereby, for example, even if the user holds the portable information processing apparatus 1 of FIG. 4 with one hand, an item can be input by pressing the button 23 or the like while supporting the portable information processing apparatus 1 with one hand. it can.

  In the present embodiment, the method of displaying the candidate nodes by the display unit 202 is shown in FIGS. 5A to 5D. However, the present invention is not limited to this. For example, FIG. 10A to FIG. As shown in FIG. 6, the child node list panel may be fixed below the input field 1001, the cursor 1003 is moved, and the child node indicated by the cursor 1003 may be set as a candidate node. Further, the child node list panel displayed in the past may be displayed until the selection result is output. For example, when the “weapon” child node is displayed as a candidate node after the “weapon” item is selected, the child node list panel 1102 of FIG. 11 displayed when the “weapon” item is selected; The child node list panel 1103 of the child node of “weapon” is displayed together.

  Further, the tree structure of the present invention is not limited to items such as game items, and for example, a hiragana tree structure (FIG. 12) may be used. In this case, as shown in FIG. 13A, the hiragana character “A” is displayed on the child node list panel 1302, and the display unit 202 sequentially shifts the child nodes one by one in the input field 1301. indicate. For example, when the user inputs the word “sushi”, as shown in FIG. 13A, when the hiragana “sa” is displayed as a candidate node, the button 23 or the like is pressed. Next, hiragana characters of “sa line” are displayed on the child node list panel 1304, and the display unit 202 sequentially displays the child nodes one by one in the input field 1301. When the user presses the button 23 or the like when the hiragana character “su” is displayed as a candidate node as shown in FIG. 13B, the hiragana character “su” is a leaf node, so A selection result is output to the input field 1301. When the selection result is output, as shown in FIG. 13C, the “node” child node list panel 1302 is displayed again. Then, as in the case of “su” hiragana, the “hi” hiragana is output as the selection result, and then the “deletion” item (cancellation node 1201 in FIG. 12) is selected as shown in FIG. Then, the selection ends. According to the present invention, it is possible to input characters with only one type of operation by the user.

  Further, in the above character input, the kanji conversion candidates of the character string of the selection result may be displayed on the child node list panel.

  In the present invention, only one input reception unit such as a button is sufficient, and various types of input such as items and characters can be made without a plurality of input reception units.

  As described above, according to the present invention, a selection device, a selection method, and a method suitable for enabling various inputs by selecting a leaf node from a tree structure with only one type of operation by a user, and A program for realizing these by a computer can be provided.

DESCRIPTION OF SYMBOLS 1 Portable information processing apparatus 10 Processing control part 10a CPU core 10b Image processing part 10c VRAM
10d WRAM
10e LCD controller 10f Touch panel controller 11 Connector 12 Cartridge 12a ROM
12b RAM
DESCRIPTION OF SYMBOLS 13 Wireless communication part 14 Communication controller 15 Sound amplifier 16 Speaker 17 Microphone 18 Operation key 19 1st display part 20 2nd display part 21 Touch panel 22 Direction key 23 Button 200 Selection apparatus 201 Storage part 202 Display part 203 Detection part 204 Output Part 205 Update part 301, 302, 1201 Cancel node 401, 701, 801, 1001, 1101, 1301 Input fields 402, 702, 802, 1002, 1102, 1103, 1302, 1304 Child node list panels 403, 404, 405, 406 , 703, 704, 705, 706, 803, 804, 805, 806, 1303, 1305, 1306, 1307 Candidate nodes 1003, 1104, 1105 Cursor

Claims (4)

A selection device that allows a user to select any leaf node from a tree structure including a plurality of nodes,
A storage unit for storing any of a plurality of nodes included in the tree structure as a target node;
A display unit that displays child nodes of the node of interest as candidate nodes in order with the passage of time;
A detection unit for detecting the presence or absence of an instruction input from the user;
When it is detected that the instruction is input, an output unit that outputs the child node as a selection result when the child node displayed as a candidate node by the display unit at the time of the detection is a leaf node; ,
When it is detected that the instruction is input, if the child node displayed as a candidate node by the display unit at the time of the detection is not a leaf node, the child node is set as a new attention node. An update unit for updating the storage unit;
With
The length of time for which the display unit displays one candidate node becomes longer according to the elapsed time since the attention node is updated.
Select device comprising a call. A selection device that allows a user to select any leaf node from a tree structure including a plurality of nodes,
A storage unit for storing any of a plurality of nodes included in the tree structure as a target node;
A display unit that displays child nodes of the node of interest as candidate nodes in order with the passage of time;
A detection unit for detecting the presence or absence of an instruction input from the user;
When it is detected that the instruction is input, an output unit that outputs the child node as a selection result when the child node displayed as a candidate node by the display unit at the time of the detection is a leaf node; ,
When it is detected that the instruction is input, if the child node displayed as a candidate node by the display unit at the time of the detection is not a leaf node, the child node is set as a new attention node. An update unit for updating the storage unit;
With
The length of time for which the display unit displays one candidate node is determined based on the selection result output in the past by the output unit.
Select device comprising a call. A selection method executed by a selection device that allows a user to select any leaf node from a tree structure including a plurality of nodes, and includes a storage unit, a display unit, a detection unit, an output unit, and an update unit. And
A storage step in which the storage unit stores any of a plurality of nodes included in the tree structure as a node of interest;
A display step in which the display unit displays the child nodes of the node of interest as candidate nodes in order over time;
A detection step in which the detection unit detects the presence or absence of an instruction input from the user;
When the output unit detects that the instruction is input, if the child node displayed as a candidate node by the display unit at the time of the detection is a leaf node, the child node is selected as a selection result. An output process to output;
When the update unit detects that the instruction is input, if the child node displayed as a candidate node by the display unit at the time of the detection is not a leaf node, the child node is selected as a new attention node. An update step of updating the storage unit so that
With
In the display step, the length of time for which the display unit displays one candidate node becomes longer according to the elapsed time since the attention node is updated.
Select wherein a call. A computer that allows a user to select any leaf node from a tree structure including a plurality of nodes.
A storage unit for storing any of a plurality of nodes included in the tree structure as a target node;
A display unit for displaying the child nodes of the node of interest as candidate nodes in order with the passage of time;
A detection unit for detecting the presence or absence of an instruction input from the user;
When it is detected that the instruction input has been made, if the child node displayed as a candidate node by the display unit at the time of the detection is a leaf node, an output unit that outputs the child node as a selection result;
When it is detected that the instruction is input, if the child node displayed as a candidate node by the display unit at the time of the detection is not a leaf node, the child node is set as a new attention node. An update unit for updating the storage unit;
Function as
The length of time for which the display unit displays one candidate node becomes longer according to the elapsed time since the attention node is updated.
Program for causing to function as.

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