JP2013003949A - Information terminal device, input method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information terminal device capable of improving the operability.SOLUTION: An information terminal device includes: an input unit that includes an operation region and detects a touch to the operation region to output the area of the touched region; a determination unit that monitors a change in the area and determines a change value indicating the degree of the change in the area; and an information processing unit that performs information processing according to the change degree.

Description

  The present invention relates to an information terminal device having a touch input device such as a touch panel.

  In recent years, an information terminal device such as a mobile phone terminal or a tablet PC (Personal computer) has increased as an input device provided with a touch panel for detecting a contact position touched by a user.

  However, when only the touch position is detected on the touch panel, there is a problem in that the operability is low because the user's possible operations are limited.

  On the other hand, a touch panel that can detect whether or not the contact continues is known. With such a touch panel, the user can continuously cause the information terminal device to perform processing such as screen scrolling, cursor movement, and image zooming simply by continuing to touch the touch panel. Improves.

  Patent Documents 1 and 2 disclose techniques for detecting the area of a contact area on a touch panel touched by a user and executing processing associated with the area. By using such a touch panel, the user can execute processing such as deforming an image by touching the touch panel so that the area of the contact region is an area associated with a desired process. Therefore, operability can be improved.

JP 2007-018372 A Japanese Patent Application Laid-Open No. 08-095709

  However, in the technologies described in Patent Documents 1 and 2, processing according to the size of the area of the contact area touched by the user is executed, and accordingly, according to the size of the user's finger touching the touch panel. The process to be executed may change. Further, when the user touches the touch panel using a stylus instead of a finger, the stylus is thinner than a normal finger, so that it is difficult to execute the same processing as that when touching with a finger. Therefore, the touch panels described in Patent Documents 1 and 2 do not have sufficient operability.

  An object of the present invention is to provide an information terminal device, an input method, and a program capable of improving operability.

  An information terminal device according to the present invention has an operation surface, detects a contact with the operation surface, outputs an area of the contact region that is in contact, monitors the change in the area, A determination unit that determines a change value indicating the magnitude of the change in area; and an information processing unit that performs information processing according to the change value.

  An input method according to the present invention is an input method for an information terminal device having an operation surface, which detects contact with the operation surface, outputs an area of the contact area being touched, and monitors the change in the area. Then, a change value indicating the magnitude of the change in the area is determined, and information processing according to the change value is performed.

  The program according to the present invention detects, on a computer connected to the operation surface, a contact with the operation surface, outputs the area of the contact area in contact, monitors the change in the area, and A procedure for determining a change value indicating the magnitude of the change in area and a procedure for performing information processing according to the change value are executed.

  According to the present invention, operability can be improved.

It is a block diagram which shows the structure of the information terminal device of the 1st Embodiment of this invention. It is a figure for demonstrating an example of the method in which a user changes a contact area. It is a figure for demonstrating the character input process which is an example of information processing. It is a figure for demonstrating the display state change process which is another example of information processing. It is a figure for demonstrating the expansion / contraction process which is another example of information processing. It is a flowchart for demonstrating an example of operation | movement of an information terminal device. It is a flowchart for demonstrating the specific example of operation | movement of an information terminal device. It is a figure for demonstrating an example of operation | movement of the information terminal device of the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the information terminal device of the 3rd Embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, components having the same function are denoted by the same reference numerals, and the description thereof may be omitted.

  First, the configuration of the information terminal device according to the first embodiment of the present invention will be described.

  FIG. 1 is a block diagram showing the configuration of the information terminal device according to the first embodiment of the present invention.

  As illustrated in FIG. 1, the information terminal device 1 includes a touch display 11, an area increase / decrease determination unit 12, and an application unit 13. In FIG. 1, only a configuration closely related to the present embodiment is shown, and the information terminal device 1 further includes another configuration (for example, a communication device) included in a general information terminal device. It may be. Moreover, as the information terminal device 1, a mobile phone terminal, a smart phone, a tablet PC, a notebook PC, a game machine, etc. are mentioned, for example.

  The touch display 11 is an input unit that detects an operation from a user.

  In the following, an operation of touching the touch display 11 with an indicator such as a finger or Slitus is referred to as “touch”, and an operation of releasing the indicator touching the touch display 11 from the touch display 11 is referred to as “release”. An operation of releasing the contact without changing the contact position on the touch display 11 later is referred to as “tap”, and an operation of moving the contact position while touching the touch display 11 after the touch is performed. The operation of performing release while dragging the touch display 11 with the indicator to call it “flick” is called “flick”, and the distance between the two indicators is kept touching the touch display 11 with the two indicators. The operation of changing is called “pinch”.

  The touch display 11 includes a display screen 21, a display control unit 22, an input detection unit 23, and a contact area determination unit 24.

  The display screen 21 displays various information and is also used as an operation surface that receives operations from the user.

  The display control unit 22 receives display information such as an image from the application unit 13 and displays the display information on the display screen 21.

  The input detection unit 23 checks whether there is a touch on the display screen 21 at predetermined time intervals. When there is contact with the display screen 21, the input detection unit 23 detects contact coordinates that are coordinates of each point in the contact area that is in contact, and notifies the contact area determination unit 24 of the contact coordinates. . Note that the coordinate system of the contact coordinates is set on the display screen 21 in advance.

  Further, every time the input detection unit 23 detects the contact coordinates, the input detection unit 23 holds the contact coordinates, and the operation on the display screen 21 is specified based on the contact coordinates detected once before and the latest contact coordinates. You may judge whether it is operation. In this case, if the operation on the display screen 21 is a specific operation, the input detection unit 23 notifies the application unit 13 of the contact coordinates. If the operation on the display screen 21 is not a specific operation, the input detection unit 23 determines the contact coordinates as a contact area. Notify unit 24. Specific operations include, for example, dragging, releasing, and flicking.

  The contact area determination unit 24 obtains a contact area that is the area of the contact region based on the contact coordinates notified from the input detection unit 23 and notifies the area increase / decrease determination unit 12 of the contact area and the contact coordinates.

  At this time, the contact area determination unit 24 may obtain the number of contact coordinates, that is, the number of points in the contact area as the contact area, or approximate the contact area to a figure such as a circle based on the contact coordinates, The approximate figure area may be the contact area. When the contact area is approximated to a figure, for example, the contact area determination unit 24 obtains the maximum value in the horizontal (or vertical) length of the contact area based on the contact coordinates, and uses the maximum value as the radius. Approximate the contact area to a circle.

  At this time, in order to prevent a minute change in the contact area from being reflected on the display information on the display screen 21 and to prevent an inappropriate operation such as flickering of the display screen 21 or to save power, When the degree is small, it is desirable that the contact area determination unit 24 does not notify the contact area determination unit 24 of the contact area. For this reason, for example, the contact area determination unit 24 temporarily holds the past contact area, and if the difference between the latest contact area and the past contact area is equal to or greater than a predetermined threshold, the contact area is determined to increase or decrease. If the difference is less than the threshold value, the contact area may not be notified to the area increase / decrease determination unit 12.

  The area increase / decrease determination unit 12 determines a change value indicating the magnitude of the change in the contact area based on the contact area notified from the contact area determination unit 24, and the change value and the contact area determination unit 24 notify the change value. The contact coordinates are notified to the application unit 13.

  More specifically, the area increase / decrease determination unit 12 holds the contact area notified from the contact area determination unit 24 as a past contact area, and when the latest contact area is notified thereafter, the latest contact area And the past contact area are compared, and the change value of the contact area is determined.

  Examples of the change value of the contact area include a change amount that is a difference between the latest contact area and the past contact area, and a change rate that is a ratio between the latest contact area and the past contact area. It is desirable that an appropriate change value of the contact area is set according to the operation of the application unit 13 described below. Further, the change value of the contact area includes information indicating whether the contact area has increased or decreased. Hereinafter, the magnitude of the change value when the contact area increases may be referred to as an increase value, and the magnitude of the change value when the contact area decreases may be referred to as a decrease value.

  The past contact area is preferably the previous contact area, which is the contact area notified one time before. When a new touch is made on the display screen 21, there is no past contact area, and the change value of the contact area cannot be determined. Therefore, the area increase / decrease determination unit 12 includes the change value application unit 13. It is assumed that the application unit 13 is notified of the touch start information and the touch coordinates indicating that the touch has been started, without performing the notification to.

  Further, the area increase / decrease determination unit 12 may determine the change value of the contact area stepwise. For example, the area increase / decrease determination unit 12 holds a table indicating the range of detailed change values of the contact area for each step value. Then, the area increase / decrease determination unit 12 calculates the difference or ratio between the latest contact area and the past contact area as a detailed change value, and corresponds to a range including the calculated detailed change value in the above table. The step value is determined as a change value of the contact area.

  The application unit 13 includes a computer such as a CPU (Central Processing Unit), reads an application program (hereinafter abbreviated as an application) recorded in a memory (not shown), executes the read application, and performs the following functions. It is an information processing part which implement | achieves. Applications include character input applications for inputting characters, browsers for browsing information, image viewers for browsing image files, mailers that display the text of emails, files for menus and emails, etc. Examples include a list display application that displays a list.

  The application unit 13 executes information processing according to the contact coordinates and the contact area notified from the touch display 11. In this information processing, the application unit 13 may output display information reflecting the processing content to the display control unit 22 to reflect the processing content on the display screen 21.

  Next, a method for changing the contact area by the user will be described.

  FIG. 2 is a diagram for explaining an example of a method in which the user changes the contact area. As shown in FIG. 2, the user changes the inclination of the finger touching the display screen 21 or changes the force with which the finger touching the display screen 21 is pressed against the display screen 21. The contact area S can be changed by changing the input angle θ. More specifically, the user can increase the contact area S by reducing the input angle θ.

  The method by which the user changes the contact area is not limited to the example in FIG. For example, the user may change the contact area by increasing or decreasing the number of fingers touching the display screen 21. Further, the user touches the display screen 21 using a slitus with an elastic body such as rubber attached to the tip, and changes the force that presses the slitas against the display screen 21, thereby allowing the elastic body to contact the display screen 21. The area may be changed.

  Next, information processing performed by the application unit 13 will be described in more detail.

  The application unit 13 performs processing for adjusting information to be input or output as information processing according to the change value of the contact area. The process for adjusting input information is, for example, a character input process, and the process for adjusting output information is, for example, a display state change process and an enlargement / reduction process.

  FIG. 3 is a diagram for explaining a character input process which is an example of information processing performed by the application unit 13. In this character input process, the application unit 13 selects a candidate character that is a candidate for an input character to be input from a predetermined character string in accordance with the change value of the contact area.

  In the example of FIG. 3, the application unit 13 displays a software keyboard 301 on the display screen 21. The software keyboard 301 has a plurality of input keys to which character strings are assigned. For example, the input key 302 on which the character “A” is displayed is assigned “A” as a character string.

  When the user newly touches the display screen 21, the application unit 13 is notified of touch start information and contact coordinates. At this time, if the contact coordinates are included in the display area of the input key 302, the application unit 13 sets “a”, which is the first character of “A”, as a candidate character, as shown in FIG. Choose as.

  Thereafter, when the user changes the contact area of the contact region 303 while continuing to touch the display screen 21, the change value is notified to the application unit 13. In this case, the application unit 13 determines that the contact area has changed, and changes the selection of the candidate character according to the notified change value.

  For example, if the increase value of the contact area is equal to or greater than a predetermined value, the application unit 13 selects the character next to “A” as a candidate character. In this case, when the user increases the contact area step by step, the candidate characters are changed in the order of “I” → “U” → “E”, and finally, as shown in FIG. , “O” which is the last character of “A line” is selected as a candidate character. Therefore, the user can perform toggle input for selecting candidate characters in a predetermined order by repeatedly increasing the contact area.

  Further, the application unit 13 may select a character next to “A” as a candidate character when the decrease value of the contact area is equal to or greater than a predetermined value. In this case, the user can perform reverse toggle input for selecting candidate characters in the reverse order to the toggle method by repeatedly decreasing the contact area.

  Each time the application unit 13 selects a candidate character, the application unit 13 displays the selected candidate character in the candidate area 304 for displaying the candidate character. Further, in the process of changing the contact area, as shown in FIG. 3B, even if the contact area enters the area of another input key, the application unit 13 displays the contact coordinates when touched first. Processed as contact coordinates intended by the user.

  The confirmation operation for confirming the input of the candidate character includes release, dragging or flicking after a predetermined time has elapsed since the intended candidate character is displayed on the display screen 21. The confirmation operation may be an operation such as touching a place other than the software keyboard 301 or the input key 302 with a second finger or the like. Note that the reason for not using simple release as a confirming operation is that the candidate characters are in the reverse order from when the contact area increased by mistake due to a decrease in the contact area in the short time from the start of release to completion. This is to prevent the user from being selected.

  FIG. 4 is a diagram for explaining display state change processing, which is another example of information processing performed by the application unit 13. In the display state change process, the application unit 13 displays an object on the display screen 21 and changes the display state of the object according to the change value of the contact area. More specifically, the application unit 13 However, as the change value of the contact area increases, the change speed of the display state increases.

  In the example of FIG. 4, the display state of the object is the position (coordinates) in the object display screen 21. Further, the application unit 13 displays an object 401 that can change the position in the display screen 21 such as a cursor, and a plurality of direction keys 402 to which a movement direction that is a change direction of the display state of the object is assigned. It is displayed on the screen 21.

  When the user newly touches the display screen 21, the application unit 13 is notified of touch start information and contact coordinates. At this time, if the contact coordinates are included in the display area of the direction key 402, the application unit 13 sets the object in a downward direction, which is the direction assigned to the direction key 402, as shown in FIG. Move at a speed of.

  Thereafter, when the user changes the contact area of the contact region 403 while continuing to touch the display screen 21, the change value is notified to the application unit 13. In this case, the application unit 13 determines that the contact area has changed, and changes the moving speed of the object according to the notified change value. For example, as illustrated in FIG. 4B, the application unit 13 increases the moving speed of the object as the increase value of the contact area increases. In addition, the application unit 13 may decrease the moving speed of the object as the decrease value of the contact area increases.

  The display state of the object may not be the position of the object but the display content and size of the object. For example, when the display state of the object is the display content of the object, the application unit 13 displays a scrollable object such as a window that changes the display content. The larger the change value of the contact area, the faster the display content. Change. Further, when the display state of the object is the size of the object, the application unit 13 displays the object whose size can be changed, such as an image, and the larger the change value of the contact area, the faster the size. Change.

  Examples of the application that can perform the display state change processing as described above include a browser, an image viewer, a mailer, and a list display application.

  FIG. 5 is a diagram for explaining enlargement / reduction processing, which is another example of information processing performed by the application unit 13. In this enlargement / reduction processing, the application unit 13 displays an image on the display screen 21 and changes the enlargement ratio of the image according to the change value of the contact area.

  In the example of FIG. 5, the application unit 13 displays an image 501 on the display screen 21. In this state, when the user newly touches the display screen 21 and then pushes the finger into the display screen 21, the contact area is reduced from the state shown in FIG. As shown in FIG. 5B, the contact area is changed to a large state. In this case, the application unit 13 scales the image at a scaling ratio corresponding to the change value of the contact area. More specifically, the application unit 13 reduces the image 501 with a larger reduction ratio as the increase value of the contact area is larger, and enlarges the image 501 with a larger magnification ratio as the decrease value of the contact area is larger.

  Note that the center coordinates of enlargement and reduction of the image 501 are the contact coordinates when touched for the first time. Further, the application unit 13 may return the image 501 to the original size when the contact area changes after the image 501 is enlarged or reduced.

  Next, the operation of the information terminal device 1 will be described.

  FIG. 6 is a flowchart for explaining an example of the operation of the information terminal device 1.

  First, when the user touches the display screen 21, the input detection unit 23 detects each coordinate included in the touched area as a contact coordinate, holds the contact coordinate, and uses the contact coordinate as a contact area determination unit. 24 is notified (step S1).

  The contact area determination unit 24 receives the contact coordinates and obtains the contact area based on the contact coordinates. Then, the contact area determination unit 24 notifies the area coordinates determination unit 12 of the contact coordinates and the contact area. Upon receiving the contact coordinates and the contact area, the area increase / decrease determination unit 12 holds the contact area (step S2).

  When the contact area is held, the area increase / decrease determination unit 12 notifies the application unit 13 of touch start information and a touch coordinate indicating that the touch has been performed (step S3).

  The application unit 13 receives touch start information and contact coordinates, determines that a touch has been newly made, and executes information processing according to the contact coordinates (step S4).

  The application unit 13 generates display information indicating an image reflecting the processing result of the information processing, and notifies the display control unit 22 of the display information. The display control unit 22 receives the display information and displays the display information on the display screen 21 (step S5).

  Thereafter, when a certain time has elapsed, the input detection unit 23 checks the current contact coordinates, compares the current contact coordinates with the held contact coordinates, and performs a specific operation such as dragging or releasing. It is determined whether or not it has been performed (step S6).

  When a specific operation is performed, the input detection unit 23 notifies the application unit 13 of the current contact coordinates. The application unit 13 receives the contact coordinates and executes information processing according to the contact coordinates (step S7).

  The application unit 13 generates display information indicating an image reflecting the processing result of the information processing, and notifies the display control unit 22 of the display information. The display control unit 22 receives the display information, displays the display information on the display screen 21 (step S8), and ends the process.

  If no specific operation is performed in step S6, the input detection unit 23 notifies the contact area determination unit 24 of the current contact coordinates. The contact area determination unit 24 receives the current contact coordinates, obtains the current contact area based on the current contact coordinates, and the difference between the current contact area and the held past contact area is equal to or greater than a threshold value. Whether or not (step S9).

  When the difference is less than the threshold value, the contact area determination unit 24 returns to the process of step S6.

  When the difference is greater than or equal to the threshold, the contact area determination unit 24 notifies the current contact area to the area increase / decrease determination unit 12. The area increase / decrease determination unit 12 receives the current contact area, compares the contact area with the contact area held in step S2, and obtains a change value of the contact area (step S10). And the contact area determination part 24 notifies the change value of a contact area to the application part 13 (step S11), and hold | maintains the present contact area (step S12). When there is a contact area that is already held, the contact area determination unit 24 overwrites the current contact area on the held contact area.

  Thereafter, the application unit 13 receives the change value of the contact area, and executes information processing according to the change value (step S12).

  The application unit 13 generates display information indicating an image reflecting the processing result of the information processing, and notifies the display control unit 22 of the display information. The display control unit 22 receives the display information and displays the display information on the display screen 21 (step S13). Thereafter, the process of step S6 is executed.

  Note that steps S5, S8, and S13 are skipped when there is no need to display an image reflecting the processing result of the information processing.

  FIG. 7 is a diagram for explaining an example of a typical operation among the operations described in FIG. Each numerical value in the following description is merely an example, and can be changed as appropriate.

  First, the input detection unit 23 detects whether or not there is a touch on the display screen 21 at a predetermined time interval (20 ms interval).

  When the input detection unit 23 detects contact, the contact area determination unit 24 determines the contact area being touched.

The area increase / decrease determination unit 12 first calculates a detailed change value of the contact area by comparing the current value with the value at the previous measurement for the contact area determined by the contact area determination unit 24. Subsequently, the area increase / decrease determination unit 12 converts a detailed change value of the contact area into a step value based on the held table and notifies the application unit 13 of the change. In the example of FIG. 7, it is set to 1 mm ² to 5 mm ² of a change amount of the first stage of value, 6 mm ² to 10 mm value of the change amount of the second stage ^2.

  The application unit 13 receives the step value from the area increase / decrease determination unit 12 and changes the display content of the object at a scroll speed corresponding to the step value.

  As described above, according to the present embodiment, information processing is executed according to a change value that is a degree of change in area, so that the user changes the operation according to the size of an indicator such as a finger. Therefore, operability can be improved. In addition, it is possible to operate without being aware of the relationship between the size of the contact area and the processing details of the information processing, and even if an unintended processing is executed, the finger contact angle is changed. It is possible to change to an intended process with a slight finger movement.

  In the present embodiment, since character input according to the change value of the area is possible, it is possible to select a candidate character more easily than switching the selection of candidate characters by repeating taps. Therefore, operability can be improved.

  In the present embodiment, the object, the image are moved, scrolled, and enlarged / reduced in accordance with the change value of the area, so that the speed can be switched with a slight finger movement at any timing of the user. . Therefore, operability can be improved.

  Further, in the present embodiment, since it is possible to change the enlargement / reduction ratio of the image according to the change value of the area, it is not necessary to display a button for enlargement / reduction on the display screen 21. Also, unlike the pinch operation, it is possible to perform expansion / contraction with one finger. Therefore, operability can be improved.

  Next, a second embodiment of the present invention will be described.

  In addition, the structure of the information terminal device in this embodiment is the same as the information terminal device 1 shown in FIG.

  In the present embodiment, the contact area determination unit 24 divides the display screen 21 into a plurality of operation areas based on the contact coordinates in contact with the display screen 21, and individually sets the areas of the contact areas in each operation area. Output as contact area.

  The area increase / decrease determination unit 12 determines an individual change value indicating the magnitude of the change in each individual contact area notified from the area increase / decrease determination unit 12 and notifies the application unit 13 of each individual change value.

  The application unit 13 performs information processing according to each individual change value notified from the area increase / decrease determination unit 12.

  FIG. 8 is a diagram for explaining an example of information processing performed by the application unit 13 in the present embodiment. In FIG. 8, as in the example of FIG. 3, character input processing is illustrated as information processing. Further, the contact area determination unit 24 divides the display screen into four operation areas A to D on the upper, lower, left, and right sides by two straight lines having the intersection of the center coordinates that are the coordinates of the center point in the contact coordinates. It is assumed that the user touches the input key 302.

  In the example of FIG. 8, when the user tilts his / her finger forward (downward on the display screen 21), the individual change value in the lower operation area B increases. In this case, each time the individual change value changes by a predetermined value or more, the application unit 13 selects candidate characters downward in the Japanese alphabet, “I” → “U” → “E”.

Similarly, when the user tilts his / her finger upward on the display screen 21, the individual change value of the operation area D increases, and the application unit 13 increases the “O” every time the individual change value increases by one or more steps. ">" E "→" U ", and so on.

  When the user tilts his / her finger to the left of the display screen 21, the individual change value of the operation area C increases, and the application unit 13 displays “ka” each time the individual change value increases by one or more steps. → Select a candidate character to the left of the Japanese syllabary like “sa” → “ta”.

  When the user tilts his / her finger to the right of the display screen 21, the individual change value of the operation area A increases, and the application unit 13 increases “ → Select candidate characters to the left of the Japanese syllabary like “ra” → “ya”.

  According to the present embodiment, various operations are possible only by changing the direction in which the user tilts his / her finger, so that the operability can be improved.

  Next, a third embodiment of the present invention will be described.

  FIG. 9 is a diagram illustrating a configuration of the information terminal device of the present embodiment. In FIG. 9, the information terminal device 100 includes an input unit 101, a determination unit 102, and an information processing unit 103.

  The input unit 101 has an operation surface 201, detects contact with the operation surface 201, and outputs a contact area that is an area of the contact region that is in contact. Note that the operation surface 201 may have a display function like the display screen 21 shown in FIG. 1 or may not have a display function. In addition, when the operation surface 201 does not have a display function, the information terminal device 100 desirably has a display device or the like having a display function separately from the operation surface 201.

  The determination unit 102 monitors a change in the contact area output from the input unit 101 and determines a change value that is a degree of change in the area.

  The information processing unit 103 performs information processing according to the change value determined by the determination unit 102. The information processing unit 103 may be realized by an application like the application unit 13 of FIG. 1, may be realized by another program such as an OS (Operating System), or is realized by dedicated hardware. May be.

  In each embodiment described above, the illustrated configuration is merely an example, and the present invention is not limited to the configuration.

  For example, the functions of the information terminal devices 1 and 100 described above are recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer. It may be realized by executing.

  Moreover, although part or all of each said embodiment can be described like the following additional remarks, it is not limited to the following.

[Appendix 1]
An input unit that has an operation surface, detects contact with the operation surface, and outputs an area of the contact region in contact;
A determination unit that monitors a change in the area and determines a change value indicating a magnitude of the change in the area;
And an information processing unit that performs information processing according to the change value.

[Appendix 2]
The information terminal device according to appendix 1, wherein the information processing unit adjusts information to be input or output according to the change value.

[Appendix 3]
A display screen;
The information processing unit displays an input key to which the character string is assigned on the display screen, and when contact with an area where the input key is displayed is detected, the first character of the character string is selected as the candidate. The information terminal device according to attachment 2, wherein when the character is selected and the area changes, the selection of the candidate character is changed according to the change value.

[Appendix 4]
4. The information terminal device according to appendix 3, wherein the information processing unit selects candidate characters that are candidates for characters to be input from a predetermined character string in accordance with the change value.

[Appendix 5]
A display screen;
The information processing device according to attachment 3, wherein the information processing unit displays an object on the display screen and changes a display state of the object according to the change value.

[Appendix 6]
The information terminal device according to attachment 5, wherein the display state is at least one of a position, a size, and display content of the object.

[Appendix 7]
The information terminal device according to appendix 6, wherein the information processing unit increases the change speed of the display state as the change value increases.

[Appendix 8]
The display state is the size of the object,
6. The information terminal device according to appendix 5, wherein the information processing unit enlarges / reduces the object so that an enlargement / reduction ratio of the object increases as the change value increases.

[Appendix 9]
The input unit divides the operation surface into a plurality of operation regions based on contact coordinates in contact with the operation surface, and outputs each of the areas of the contact regions in each operation region as an individual contact area,
The determination unit determines the degree of change of each individual contact area as an individual change value,
The information processing device according to any one of appendices 1 to 8, wherein the information processing unit performs information processing according to each individual change value.

[Appendix 10]
An input method of an information terminal device having an operation surface,
Detecting contact with the operation surface, and outputting the area of the contact area being touched;
Monitoring the area change to determine a change value indicating the magnitude of the area change;
An input method for performing information processing according to the change value.

[Appendix 11]
To the computer connected to the operation surface,
A procedure for detecting contact with the operation surface and outputting the area of the contact area being touched;
A procedure for monitoring a change in the area and determining a change value indicating a magnitude of the change in the area;
And a program for executing information processing in accordance with the change value.

DESCRIPTION OF SYMBOLS 1,100 Information terminal device 11 Touch display 12 Area increase / decrease determination part 13 Application part 21 Display screen 22 Display control part 23 Input detection part 24 Contact area determination part 101 Input part 102 Determination part 103 Information processing part

Claims (10)

An input unit that has an operation surface, detects contact with the operation surface, and outputs an area of the contact region in contact;
A determination unit that monitors a change in the area and determines a change value indicating a magnitude of the change in the area;
And an information processing unit that performs information processing according to the change value.   The information processing apparatus according to claim 1, wherein the information processing unit adjusts information to be input or output according to the change value.   The information terminal device according to claim 2, wherein the information processing unit selects a candidate character that is a candidate for an input character from a predetermined character string in accordance with the change value. A display screen;
The information terminal device according to claim 2, wherein the information processing unit displays an object on the display screen and changes a display state of the object according to the change value.   The information terminal device according to claim 4, wherein the display state is at least one of a position, a size, and display content of the object.   The information terminal device according to claim 5, wherein the information processing unit increases the change speed of the display state as the change value is larger. The display state is the size of the object,
The information processing apparatus according to claim 4, wherein the information processing unit enlarges / reduces the object such that the larger the change value, the larger the enlargement / reduction ratio of the object. The input unit divides the operation surface into a plurality of operation regions based on contact coordinates in contact with the operation surface, and outputs each of the areas of the contact regions in each operation region as an individual contact area,
The determination unit determines the degree of change of each individual contact area as an individual change value,
The information terminal device according to claim 1, wherein the information processing unit performs information processing according to each individual change value. An input method of an information terminal device having an operation surface,
Detecting contact with the operation surface, and outputting the area of the contact area being touched;
Monitoring the area change to determine a change value indicating the magnitude of the area change;
An input method for performing information processing according to the change value. To the computer connected to the operation surface,
A procedure for detecting contact with the operation surface and outputting the area of the contact area being touched;
A procedure for monitoring a change in the area and determining a change value indicating a magnitude of the change in the area;
And a program for executing information processing in accordance with the change value.

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