JP2011070491A - Input method, information processor, touch panel, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an input method that prevents an error in keyboard input through a touch panel; and to provide an information processor, a touch panel, and a program. <P>SOLUTION: The input method includes: a touch determination step for acquiring the size of a touch to a screen of the touch panel and determining a touch when the size of the touch is larger than a threshold; and a threshold changing step for changing the value of the threshold to a predetermined value when a software keyboard, which is composed of a plurality of keys on the touch panel and used for inputting a code corresponding to a key located in the touch position, is activated. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an input method, an information processing apparatus, a touch panel, and a program for performing input by touching a screen.

  The touch panel has a display function and an input function, and is an apparatus that performs input by touching the display screen with a finger or a pen. For this reason, in a device provided with a touch panel, it is possible to perform input using only the display screen, and there is no need for buttons and a keyboard in addition to the display screen. That is, by providing the touch panel, the device can be reduced in size.

  In small devices such as mobile phones, devices equipped with a touch panel are increasing. Therefore, various methods have been considered that make it easy to handle input on the touch panel. For example, Patent Literature 1 discloses a method in which a display body is displayed near the cursor in addition to the cursor, and various functions can be executed with a simple operation by using the display body.

  Software displays a keyboard key on the display screen of the touch panel, and allows the user to input a key by touching the displayed key with a finger or the like. The touch panel is also used as a keyboard. Therefore, various methods have been proposed to facilitate use of the touch panel as a keyboard.

  For example, Patent Document 2 discloses a method for enabling a keyboard having a key layout selected by a user to be displayed on a touch panel screen and using a keyboard having an arbitrary key layout. Patent Document 3 discloses a method of reducing erroneous input in key input by attaching a cover with a hole to a key portion of a keyboard displayed on a touch panel screen.

JP 2004-177991 A JP 2000-56877 A JP 2001-117721 A

  Usually, at the time of keyboard input, a finger is placed on a key at a position called a home position, the finger is moved to the key to be input from this position, the key is pressed, and key input is performed. When the touch panel is used as a keyboard, it may be determined as a key input by a finger placed at the home position. Also, when moving a finger from the home position to a key to be input, the finger may touch the screen. Touching this screen may also be determined as a key input.

  However, the conventional methods including the methods disclosed in Patent Documents 1 to 3 cannot prevent such erroneous input. In addition, in the method disclosed in Patent Document 3, a hardware mechanism must be added to the touch panel.

  Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide an input method, an information processing apparatus, a touch panel, and a program that prevent erroneous input in keyboard input on a touch panel.

  In order to solve the above-described problem, the input method according to the present invention obtains the magnitude of contact on the screen of the touch panel, and determines that the contact has occurred when the magnitude of the contact is greater than a threshold value. When a software keyboard is activated that includes a determination step and a plurality of keys displayed on the touch panel, and a code corresponding to the key displayed at the touched position is input, the threshold value is set. And a threshold value changing step for changing the threshold value to a predetermined value.

  According to the input method of the present invention, the contact is generated when the contact detection step detects the position and size of the contact on the screen, and the contact size detected by the contact detection step is greater than a threshold value. When a software keyboard is activated that includes a touch occurrence determination step for determining that the touch has occurred and a plurality of keys displayed on the touch panel, and a code corresponding to the key displayed at the touched position is input. And a threshold value changing step for changing the threshold value to a predetermined value.

  In addition, the information processing apparatus according to the present invention determines that the contact has occurred when the predetermined value is larger than the threshold value and the size of the touch on the touch panel screen is larger than the threshold value. And an input value determining means for determining an input value by the contact based on a position and a size of the contact on the screen of the touch panel when the contact is determined to be generated by the determining means and the contact occurrence determining means. And when a software keyboard that is input with a code corresponding to the key displayed at the touched position is activated, the threshold value is set to a predetermined value. Threshold value changing means for changing to a value.

  The information processing apparatus according to the present invention includes a contact detection unit that detects a position and a size of a contact on a screen, and the contact is detected when a contact size detected by the contact detection unit is larger than a threshold value. Contact occurrence determining means for determining that the contact has occurred, and input by the contact based on the position and size of the contact detected by the contact detection means when the contact occurrence determining means determines that the contact has occurred. When a software keyboard is activated that includes input value determining means for determining a value and a plurality of keys displayed on the touch panel, and a code corresponding to the key displayed at the touched position is input. Threshold value changing means for changing the threshold value to a predetermined value.

  In the touch panel according to the present invention, the contact occurs when the contact detection unit detects the position and the size of the contact on the screen, and the contact size detected by the contact detection unit is larger than the threshold value. A contact occurrence determination unit that determines that the contact has occurred, and when the contact occurrence determination unit determines that the contact has occurred, an input value based on the contact is determined based on the position and size of the contact detected by the contact detection unit. When an input value determination means for determining and a software keyboard that includes a plurality of keys displayed on the touch panel and inputs a code corresponding to the key displayed at the touched position are activated, Threshold value changing means for changing the threshold value to a predetermined value.

  In addition, the program according to the present invention causes the information processing apparatus to acquire a contact size on the screen of the touch panel, and to determine that the contact has occurred when the contact size is greater than a threshold value. And a threshold value of a predetermined value when a software keyboard is input that includes a plurality of keys displayed on the touch panel and inputs a code corresponding to the key displayed at the touched position. It is made to function as a threshold value changing means for changing to the value of.

  The program according to the present invention includes a touch detection unit that detects a position and a size of a touch on a screen, and the contact when the contact detected by the contact detection unit is larger than a threshold value. A software keyboard is activated that includes a contact occurrence determination unit that determines that a touch has occurred and a plurality of keys displayed on the touch panel, and inputs a code corresponding to the key displayed at the touched position. When the threshold value is changed, the threshold value is changed to a predetermined value.

  According to the present invention, it is possible to prevent erroneous input in keyboard input on the touch panel.

It is a figure which shows the structure of the information processing apparatus which concerns on embodiment of this invention. It is a figure which shows the structure of the touchscreen which concerns on embodiment of this invention. It is a figure which shows the processing operation in the information processing apparatus which concerns on embodiment of this invention. It is a figure which shows the processing operation in the information processing apparatus which concerns on embodiment of this invention.

  Next, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram illustrating a configuration of an information processing apparatus in which input is performed by an input method according to an embodiment of the present invention. This information processing apparatus includes a touch panel 1 and a control unit 2. In the configuration of FIG. 1, the touch panel 1 and the control unit 2 are separate parts, but the touch panel 1 may include the control unit 2 as illustrated in FIG. 2. Examples of the information processing apparatus include a personal computer (PC) equipped with a touch panel, a PDA, a mobile phone, ATM, POS, and a ticket machine.

  The touch panel 1 includes display means 11 and contact detection means 12. The touch panel 1 includes a display screen. The display unit 11 displays the display screen, and the contact detection unit 12 detects contact on the display screen. The touch panel is also called a touch screen. The touch panel 1 may partially include means included in the control unit 2 to be described later, or may include the entire control unit 2 as illustrated in FIG.

  The display unit 11 performs display based on information and commands from the control unit 2. The display unit 11 is, for example, a liquid crystal display. The display unit 11 displays, for example, a GUI (Graphic User Interface) object such as an icon or a keyboard.

  The contact detection means 12 detects contact on the screen. At that time, the position and size of the contact on the screen are detected. Information on the detected position and size of the contact is sent to the control unit 2. The touch detection means 12 of the touch panel 1 includes a pressure method, a capacitance method, a resistance film method, a surface acoustic wave method, an infrared method, and the like.

  The pressure-type contact detection means 12 detects the position on the screen where pressure is applied by a finger or a pen, and the magnitude of this pressure. That is, the pressure-type contact detection means 12 detects the position on the screen where the pressure is applied as the position of the contact, and detects the value of the pressure applied on the screen as the magnitude of the contact.

  Capacitance type contact detection means 12 detects a position on the screen touched by a finger or the like and a change in current value due to the touch of the finger or the like. In other words, the capacitance type contact detection means 12 detects the position on the screen touched by a finger as the position of contact, and the current value obtained by touching the screen with the finger or the like as the magnitude of contact. Detect the amount of change.

  In addition, the capacitance type contact detection means 12 may detect a position on the screen touched by a finger or the like and a change in capacitance caused by the touch of the finger or the like. Such a capacitance-type contact detection means 12 detects the position on the screen touched by a finger or the like as the contact position, and the capacitance of the capacitance due to the touch of the finger or the like as the contact size. Detect the amount of change.

  In addition, the capacitance type contact detection means 12 detects a position on the screen touched by a finger or the like and an area on the screen touched by the finger or the like. Such a capacitance-type contact detection means 12 detects the position on the screen touched by a finger or the like as the contact position, and the contact size of the contact area on the screen touched by the finger or the like. Detect value.

  The resistive film type contact detection means 12 detects a position on the screen touched by a finger or a pen and a voltage value change caused by the touch of the finger or pen. That is, the resistance film type contact detection means 12 detects the position on the screen touched by a finger or a pen as the position of contact, and as the size of the contact, the finger or pen touches the screen. The amount of change in voltage value is detected.

  The surface acoustic wave type contact detection means 12 detects a position on the screen touched by a finger or a pen and a voltage value change caused by the touch of the finger or pen. That is, the surface acoustic wave type contact detection means 12 detects the position on the screen touched by a finger or a pen as a contact position, and the finger or pen touches the screen as the contact size. The amount of change in the voltage value due to is detected.

  The infrared type contact detection means 12 detects a change in the received light amount of the infrared rays due to the position on the screen touched by a finger or a pen and the touch of the finger or the pen. That is, the surface acoustic wave type contact detection means 12 detects the position on the screen touched by a finger or a pen as a contact position, and the finger or pen touches the screen as the contact size. The amount of change in the amount of received infrared light is detected.

  Further, the contact detection means 12 of each of the above methods may detect the time during which a finger or the like is in contact. The contact time may be detected as the contact size.

  The control unit 2 includes a contact occurrence determination unit 21, an input value determination unit 22, a threshold change unit 23, and a storage unit 24. The storage means 24 is a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk or the like, and may be included in the control unit 2 as shown in FIGS. It may be separate. The control unit 2 includes a CPU (Central Processing Unit) and the like, and the contact occurrence determination unit 21, the input value determination unit 22, and the threshold value change unit 23 are programs stored in advance in the storage unit 24. For example, the CPU may execute the process.

  The contact occurrence determination means 21 determines whether contact has occurred on the screen of the touch panel 2. At this time, the contact occurrence determination unit 21 acquires information on the size of the contact detected by the contact detection unit 12, and determines whether contact has occurred based on the information on the contact size. The contact occurrence determination means 21 determines that contact has occurred when the magnitude of this contact is greater than a predetermined threshold.

  The input value determination means 22 acquires the position and size of the contact detected by the contact detection means 12 when the contact occurrence determination means 21 determines that contact has occurred, and the position and size of this contact. The input value is determined based on the above. For example, if the position where the contact occurred is on the icon, the selection of this icon may be input from the user. For example, if the position where the contact occurred is on the key “X” on the keyboard, the user may input the selection of the key “X”. For example, if the touched position is a position where there is no icon or the like, the designation of the cursor position may be input.

  The threshold value changing unit 23 changes the threshold value used when the contact occurrence determination unit 21 determines the occurrence of contact when performing keyboard input using the touch panel 1. That is, for example, when the software keyboard is activated, the keyboard is displayed on the touch panel 1, and the keyboard can be input by the touch panel 1, the contact occurrence determination unit 21 determines the occurrence of contact by the threshold value changing unit 23. The value of the threshold used when doing this is changed. As described above, when performing keyboard input, the screen may be touched when a finger is moved. Therefore, for example, the threshold value may be changed to a large value so that the contact occurrence determination means 21 does not determine the occurrence of the contact with the screen during the movement.

  In the case of the pressure type contact detection means 12, it is preferable to increase the threshold value. When selecting a key on the keyboard, usually, the finger strongly presses the position where the key is displayed. On the other hand, when the finger touches the screen when the finger moves, the finger does not press the screen strongly. Therefore, in the case of the pressure type contact detection means 12, when the touch panel 1 is used as a keyboard, the threshold value may be changed to a large value by the threshold value change means 23. By doing so, erroneous input can be prevented.

  In the case of the capacitance type contact detection means 12, the threshold value may be increased. When a key on the keyboard is selected, the finger usually presses the position where the key is displayed, so that the contact area is considered to be large. On the other hand, when the finger touches the screen when the finger moves, the finger does not press the screen strongly, so that the contact area is small. Therefore, in the case of the capacitive contact detection means 12, when the touch panel 1 is used as a keyboard, the threshold value may be changed to a large value by the threshold value changing means 23. By doing so, erroneous input can be prevented.

  In the case of the contact detection means 12 of the resistive film type or the surface acoustic wave type, the threshold value may be increased. When selecting a key on the keyboard, etc., the finger usually presses the position where the key is displayed, so the change in the voltage value is considered to be large. On the other hand, when the finger touches the screen, for example, when the finger moves, the finger does not press the screen strongly, so that the voltage value changes little. Therefore, in the case of the resistive film and surface acoustic wave type contact detection means 12, when the touch panel 1 is used as a keyboard, the threshold value may be changed to a large value by the threshold value changing means 23. By doing so, erroneous input can be prevented.

  In the case of the infrared contact detection means 12, the threshold value may be increased. When a key on the keyboard is selected, the finger usually presses the position where the key is displayed, so that the contact area is considered to be large. For this reason, the amount of infrared rays that are blocked by a finger or the like and are no longer received is increased. On the other hand, when the finger touches the screen when the finger moves, the finger does not press the screen strongly, so that the contact area is small. Therefore, the amount of infrared light that is blocked and no longer received is small. Therefore, in the case of the infrared contact detection means 12, when the touch panel 1 is used as a keyboard, the threshold value may be changed to a large value by the threshold value change means 23. By doing so, erroneous input can be prevented.

  Further, the threshold value may be increased when detecting the contact time as the contact size. When the finger is moved, the contact time is considered to be short. Therefore, when the contact time is detected as the contact size, the threshold value may be changed to a large value by the threshold value changing unit 23. By doing so, erroneous input can be prevented.

  The storage unit 24 stores information. In the storage unit 24, for example, a threshold value used in the determination by the contact occurrence determination unit 21, a threshold value after the change by the threshold change unit 23, the position and size of the contact detected by the contact detection unit 12, etc. Is memorized.

  FIG. 3 is a diagram showing processing operations performed in the information processing apparatus according to the embodiment of the present invention when keyboard input can be performed by the touch panel 1.

  The software keyboard is activated (S101). The software keyboard may be activated by receiving a command for activation by the user, or an application in use may be automatically activated. The activation command by the user may be input from the touch panel 1 or the information processing apparatus may be provided with a dedicated button or the like.

  The keyboard is displayed by the display means 21, and the threshold value changing means 23 changes the threshold value used when the contact occurrence determining means 21 determines the occurrence of contact (S102).

  When the keyboard display is terminated, the software keyboard is terminated (S103). The display of the keyboard by the display unit 21 is finished, and the threshold value changing unit 23 returns the threshold value used when the contact occurrence determining unit 21 determines the occurrence of contact to the value before the change in step S102 (S104). .

  FIG. 4 is a diagram illustrating a processing operation performed in the information processing apparatus according to the embodiment of the present invention when input is performed from the touch panel 1.

  A finger or the like touches the screen of the display means 11 (S201). At this time, the contact detection means 12 detects the position and magnitude of the contact on the screen. When the detected contact size is larger than the threshold value, the contact generation determination unit 21 determines that a contact has occurred (S202). When it is determined by the contact occurrence determination means 21 that a contact has occurred, the input value input by the contact is determined by the input value determination means 22 based on the position and size of the contact (S203).

  In this way, input from the touch panel 1 is performed. The information processing apparatus performs processing based on the input value determined by the input value determining means 22. For example, if the key “X” on the keyboard is input, “X” is displayed on the display screen by the display means 11.

  The processing operation in the above-described embodiment can be executed by hardware, software, or a combined configuration of both.

  When processing by software is executed, the program is loaded from a ROM (Read Only Memory) storing a program recording a processing sequence to a memory (RAM) in a computer incorporated in dedicated hardware. The program can be read and executed, or the program can be installed and executed on a general-purpose computer capable of executing various processes.

  For example, the program can be recorded in advance on a hard disk or ROM as a recording medium. Alternatively, the program is stored on a removable recording medium such as a magnetic disk such as a floppy (registered trademark) disk, an optical disk such as a CD (Compact Disc) or DVD (Digital Versatile Disc), or a magneto-optical disk such as an MO (Magneto Optical) disk. It is possible to store (record) temporarily or permanently.

  Such a removable recording medium can be provided as so-called package software.

  The program is installed on the computer from the above-described removable recording medium, transferred wirelessly from the download site to the computer, or transferred to the computer via a network such as a LAN (Local Area Network) or the Internet. On the other hand, the computer can receive the transferred program and install it on a recording medium such as a built-in hard disk.

  In addition to being executed in time series in accordance with the processing operations described in the above embodiment, the processing capability of the apparatus that executes the processing, or a configuration to execute in parallel or individually as necessary Is also possible.

  In addition, the system described in the above embodiment can be configured to have a logical set configuration of a plurality of devices or to mix the functions of each device.

  The present invention has been described above by the preferred embodiments of the present invention. While the invention has been described with reference to specific embodiments thereof, various modifications and changes can be made to these embodiments without departing from the broader spirit and scope of the invention as defined in the claims. is there.

  In the input method according to the present invention, when it is determined that the contact has occurred in the contact occurrence determination step, the position and size of the touch on the screen of the touch panel are acquired, and the position and size of the contact are acquired. Based on the above, an input value determining step for determining an input value by the contact may be provided.

  In the input method according to the present invention, when it is determined that the contact has occurred in the contact occurrence determination step, the input value based on the contact is determined based on the position and size of the contact detected by the contact detection step. You may make it have the input value determination step to determine.

  In the input method according to the present invention, the magnitude of the contact detected by the detection step may be the magnitude of the pressure applied to the screen by the contact.

  In the input method according to the present invention, the size of the contact detected by the detection step may be a contact area on the screen due to the contact.

  In the input method according to the present invention, the size of the contact detected by the detection step may be the length of time that the contact lasted.

  In the input method according to the present invention, the magnitude of the contact detected by the detection step may be an amount of change in capacitance due to the contact.

  In the input method according to the present invention, the magnitude of the contact detected by the detection step may be an amount of change in current due to the contact.

  In the input method according to the present invention, the magnitude of the contact detected by the detection step may be a voltage change amount due to the contact.

  In the input method according to the present invention, the magnitude of the contact detected by the detection step may be the amount of change in the amount of received infrared light due to the contact.

  In the input method according to the present invention, the predetermined value may be larger than the threshold value.

  Further, the program according to the present invention acquires the position and size of the touch on the screen of the touch panel when the information processing apparatus determines that the contact has occurred by the contact occurrence determination unit, and It may be made to function as an input value determining means for determining the input value by the contact based on the position and size of the touch.

  Further, the program according to the present invention is based on the position and size of the contact detected by the contact detection step when the contact is determined to be generated by the contact occurrence determination means. You may make it function as an input value determination means which determines a value.

DESCRIPTION OF SYMBOLS 1 Touch panel 11 Display means 12 Contact detection means 2 Control part 21 Contact generation | occurrence | production determination means 22 Input value determination means 23 Threshold change means 24 Storage means

Claims (19)

A contact occurrence determination step of acquiring a contact size on the screen of the touch panel and determining that the contact has occurred when the contact size is greater than a threshold;
When a software keyboard that includes a plurality of keys displayed on the touch panel and inputs a code corresponding to the key displayed at the touched position is activated, the threshold value is set to a predetermined value. An input method comprising: a threshold changing step for changing.   When it is determined that the contact has occurred in the contact generation determination step, the position and size of the touch on the screen of the touch panel is acquired, and the input value by the contact is based on the position and size of the contact The input method according to claim 1, further comprising an input value determining step for determining. A contact detection step for detecting the position and size of the contact on the screen;
A contact occurrence determination step for determining that the contact has occurred when a contact size detected by the contact detection step is greater than a threshold;
When a software keyboard that includes a plurality of keys displayed on the touch panel and inputs a code corresponding to the key displayed at the touched position is activated, the threshold value is set to a predetermined value. An input method comprising: a threshold changing step for changing.   An input value determining step for determining an input value by the contact based on the position and size of the contact detected by the contact detecting step when it is determined by the contact occurrence determining step that the contact has occurred; The input method according to claim 3.   5. The input method according to claim 1, wherein the magnitude of the contact detected by the detection step is a magnitude of a pressure applied to the screen by the contact.   5. The input method according to claim 1, wherein the size of the contact detected by the detection step is a contact area on the screen due to the contact. 6.   5. The input method according to claim 1, wherein the size of the contact detected by the detection step is a length of time for which the contact lasted. 6.   5. The input method according to claim 1, wherein the magnitude of the contact detected by the detection step is an amount of change in capacitance due to the contact. 6.   5. The input method according to claim 1, wherein the magnitude of the contact detected by the detection step is an amount of change in current due to the contact. 6.   The input method according to any one of claims 1 to 4, wherein the magnitude of the contact detected by the detection step is a change amount of a voltage due to the contact.   5. The input method according to claim 1, wherein the size of the contact detected by the detection step is a change amount of the amount of received infrared light due to the contact. 6.   The input method according to claim 1, wherein the predetermined value is larger than the threshold value. The predetermined value is a contact occurrence determination unit that determines that the contact has occurred when a contact size on the touch panel screen larger than the threshold value is larger than the threshold value;
An input value determining means for determining an input value based on the contact based on the position and magnitude of the contact on the screen of the touch panel when the contact is determined to have occurred by the contact occurrence determining means;
When a software keyboard that includes a plurality of keys displayed on the touch panel and inputs a code corresponding to the key displayed at the touched position is activated, the threshold value is set to a predetermined value. An information processing apparatus comprising: a threshold value changing means for changing. Contact detection means for detecting the position and magnitude of contact on the screen;
Contact occurrence determining means for determining that the contact has occurred when the size of the contact detected by the contact detection means is greater than a threshold;
An input value determining means for determining an input value based on the contact based on the position and size of the contact detected by the contact detecting means when the contact occurrence determining means determines that the contact has occurred;
When a software keyboard that includes a plurality of keys displayed on the touch panel and inputs a code corresponding to the key displayed at the touched position is activated, the threshold value is set to a predetermined value. An information processing apparatus comprising: a threshold value changing means for changing. Contact detection means for detecting the position and magnitude of contact on the screen;
Contact occurrence determining means for determining that the contact has occurred when the size of the contact detected by the contact detection means is greater than a threshold;
An input value determining means for determining an input value based on the contact based on the position and size of the contact detected by the contact detecting means when the contact occurrence determining means determines that the contact has occurred;
When a software keyboard that includes a plurality of keys displayed on the touch panel and inputs a code corresponding to the key displayed at the touched position is activated, the threshold value is set to a predetermined value. And a threshold value changing means for changing. Information processing device
A contact occurrence determining means for acquiring a contact size on the screen of the touch panel and determining that the contact has occurred when the contact size is greater than a threshold;
When a software keyboard that includes a plurality of keys displayed on the touch panel and inputs a code corresponding to the key displayed at the touched position is activated, the threshold value is set to a predetermined value. A program that functions as a threshold changing means for changing. Information processing device
When it is determined by the contact occurrence determination means that the contact has occurred, the position and size of the touch on the screen of the touch panel is acquired, and the input value by the contact is based on the position and size of the contact The program according to claim 16, which functions as input value determining means for determining Touch panel
Contact detection means for detecting the position and magnitude of contact on the screen;
Contact occurrence determining means for determining that the contact has occurred when the size of the contact detected by the contact detection means is greater than a threshold;
When a software keyboard that includes a plurality of keys displayed on the touch panel and inputs a code corresponding to the key displayed at the touched position is activated, the threshold value is set to a predetermined value. A program that functions as a threshold changing means for changing. Touch panel
When the contact occurrence determining means determines that the contact has occurred, the contact occurrence determining means functions as an input value determining means for determining an input value based on the contact based on the position and size of the contact detected by the contact detecting step. The program according to claim 18.

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