JP2014056519A - Portable terminal device, incorrect operation determination method, control program, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve touch operation to a marginal part of a touch panel intended by a user without reducing sensitivity of the marginal part of the touch panel.SOLUTION: A portable terminal device includes: an incorrect detection candidate first area determination unit (12) that determines an incorrect detection candidate first area, an incorrect detection candidate second area determination unit (13) that determines an incorrect detection candidate second area by using the incorrect detection candidate first area, and an incorrect detection assumption area determination unit (14) that determines an incorrect detection assumption area by using the incorrect detection candidate second area.

Description

  The present invention relates to a user interface technology of a mobile terminal device provided with a touch panel.

  In recent years, so-called tablet terminals such as smartphones and tablet PCs are rapidly spreading. The tablet terminal has a flat outer shape and includes a touch panel as a display unit and an input unit. By touching the object displayed on the touch panel with a finger, a pen, or the like, the user can perform various operations on the tablet terminal body.

  The tablet terminal can determine various contact (touch) operations on the user's screen using the touch panel, and can execute a process specified by the touch operation. For example, for touch actions, various actions such as tapping (lightly tapping), flicking (flicking, picking), pinching (pinch with fingers), dragging an object displayed on the screen with a finger (pen) There is. The tablet terminal discriminates such various touch operations, and selects / moves an object, scrolls a list, enlarges / reduces an image, etc. according to the discrimination result. In the tablet terminal, the position touched by the user is accurately specified, and various operations are performed.

  When the touch panel mechanism is used in a mobile terminal device such as a mobile phone, the user operates the mobile terminal device with one hand (a hand holding the mobile terminal device) at a high rate. However, when operating the mobile terminal device with one hand, when trying to touch an icon displayed on the touch panel of the mobile terminal device, the base of the thumb first touches the area located at the edge of the touch panel. Sometimes. In such a case, an operation unintended by the user may be performed.

  In consideration of such a situation, Patent Document 1 describes an example of a countermeasure against an erroneous operation that occurs when the base of a finger touches an area located at the edge of the touch panel before an operation intended by the user. Mobile terminal devices.

  In the portable terminal device of Patent Literature 1, when a touch on a touch panel remains touched and another touch is detected at another position, the previous touch position is included in the edge of the touch panel. If the subsequent touch position is not included in the edge of the touch panel, the previous touch is invalidated.

  With the above processing, in the portable terminal device, even when the user accidentally touches the edge of the touch panel with the base of the thumb first, accepting an operation instruction by touching another area as an effective touch. It is possible.

JP 2012-093932 A (published May 17, 2012)

  However, in the portable terminal device disclosed in Patent Document 1, the touch operation from the user to the edge of the touch panel is not uniformly effective. For this reason, when the user holds the portable terminal device with both hands, even when the user wants to touch the edge of the touch panel with his / her own intention, the sensitivity of the touch is reduced, and the touch panel edge There was a problem that the touch operation was invalidated.

  Therefore, a special sensor such as a photosensor is installed in the periphery of the touch panel to generate a finger image, and based on the analysis of the image, it is determined whether the touch operation on the edge of the touch panel is an erroneous operation. A method is conceivable. According to this method, whether or not the touch operation is an erroneous operation is determined by finger image analysis, so that the touch operation on the edge of the touch panel can be made effective even in the case of a two-hand operation.

  However, a sensor and a configuration for detecting the sensor (for example, a microcomputer and its temporary storage memory) must be newly provided, and as a result, the manufacturing cost of the mobile terminal device itself may be increased. there were.

  As described above, the portable terminal device of Patent Document 1 is specialized for one-handed operation and does not dynamically change a portion where an erroneous operation may be performed (that is, the edge of the touch panel). . In other words, the part that may be erroneously operated is fixed on the touch panel.

  For this reason, there has been a problem that a touch on a portion that is intentionally performed by the user and that may be erroneously performed is not effective.

  Such a problem becomes conspicuous particularly when the user operates the portable terminal device with both hands.

  The present invention has been made in order to solve the above-described problem, and the object of the present invention is to predict in advance the portion of the edge of the touch panel where a user's erroneous operation may be performed. An object of the present invention is to provide a portable terminal device capable of realizing a touch operation on the edge of a touch panel intended by a user without lowering the sensitivity of the user.

In order to solve the above problems, a mobile terminal device according to one embodiment of the present invention provides:
A detection unit that detects a touch start point and a touch end point of a touch operation on the touch panel;
The intersection of the perpendicular bisector connecting the touch start point and the touch end point and the false detection assumption line that defines the edge of the touch panel is obtained, and the error is determined as the false detection candidate first area. A detection candidate first area determination unit;
Of the plurality of first false detection candidate first areas determined by the first false detection candidate first area determination unit, a distance between two false first detection candidate areas that are adjacent to each other is selected below a first threshold value. And a false detection candidate second area determination unit that sets the selected two false detection candidate first areas as the false detection candidate second area,
When the number of the plurality of erroneous detection candidate second areas determined by the erroneous detection candidate second area determination unit is equal to or greater than a third threshold, an erroneous detection assumption area using the plurality of erroneous detection candidate second areas A false detection assumption area determination unit for determining
In the touch operation after the touch operation, an erroneous detection assumption area distance determination unit that determines whether the position of the touch operation is a distance within a fourth threshold from the reference point of the erroneous detection assumption area;
When the erroneous detection assumption area determination unit determines that the distance is within the fourth threshold from the reference point of the erroneous detection assumption area, it is determined whether the size of the touch operation is larger than the fifth threshold. A touch size determination unit to perform,
And a processing unit that processes the touch operation as invalid when the touch size determination unit determines that the size of the touch operation is larger than the fifth threshold.

  According to one aspect of the present invention, the user's intention is not reduced by reducing the sensitivity of the edge of the touch panel by predicting in advance the portion of the edge of the touch panel that may be erroneously operated by the user. There is an effect that a touch operation to the edge of the touch panel can be realized.

It is a functional block diagram which shows the principal part structure of the control part which concerns on one Embodiment of this invention. It is a block diagram which shows the hardware constitutions of the portable terminal which concerns on one Embodiment of this invention. It is a figure explaining an example of one hand operation of the portable terminal concerning one embodiment of the present invention. It is a figure which shows an example of the user's touch locus | trajectory in the touchscreen of the portable terminal which concerns on one Embodiment of this invention. (A) is a figure which shows the example of the relationship of the perpendicular bisector with respect to the base part of the thumb in the touch panel of the portable terminal which concerns on one Embodiment of this invention, and a touch start point / end point. (B) is explanatory drawing for demonstrating the false detection candidate 1st area, the false detection candidate 2nd area, and the false detection assumption area in the touch panel of the portable terminal which concerns on one Embodiment of this invention. It is a figure which shows an example of the touch operation | movement to the false detection assumption area in the touch panel of the portable terminal which concerns on one Embodiment of this invention. It is an example of the flowchart of the process which determines whether the touch operation | movement which concerns on one Embodiment of this invention is a flick system operation or a tap system operation. It is an example of the flowchart of a process when the touch operation | movement which concerns on one Embodiment of this invention is a flick type | system | group operation. It is an example of the flowchart of a process when the touch operation | movement which concerns on one Embodiment of this invention is a tap type | system | group operation. It is explanatory drawing for demonstrating the false detection candidate 1st area, the false detection candidate 2nd area, and the false detection assumption area in the touch panel of the portable terminal which concerns on one Embodiment of this invention. It is an example of the flowchart of a process when the touch operation | movement which concerns on one Embodiment of this invention is a flick type | system | group operation. It is explanatory drawing for demonstrating the false detection candidate 1st area, the false detection candidate 2nd area, and the false detection assumption area in the touch panel of the portable terminal which concerns on one Embodiment of this invention. It is an example of the flowchart of a process when the touch operation | movement which concerns on one Embodiment of this invention is a flick type | system | group operation.

  The embodiment of the present invention will be described below with reference to FIGS.

[Embodiment 1]
First, an embodiment of the present invention will be described with reference to FIGS.

[Hardware configuration of portable terminal 100]
FIG. 2 is a block diagram illustrating a hardware configuration of the mobile terminal (mobile terminal device) 100 according to an embodiment of the present invention. As shown in FIG. 2, the mobile terminal 100 includes at least a display unit 2, a detection unit 4, a control unit 5, and a storage unit 7. Furthermore, although omitted here, the mobile terminal 100 includes a call processing unit, an imaging unit (such as a lens and an imaging device) that performs shooting, a broadcast image receiving unit (such as a tuner and a demodulation unit), a GPS, and a sensor (an acceleration sensor, In addition to the tilt sensor, the mobile terminal device (smartphone) may include various components that are provided as standard.

(Display unit 2)
The display unit 2 includes a touch panel 3 having a function of detecting a touched (touched) point. The touch panel 3 includes a touch surface that accepts contact with an indicator (indicating the screen position of the display unit 2, for example, a finger or a pen), and contact / non-contact between the indicator and the touch surface ( A touch sensor is provided for detecting an approach / non-approach) and a contact (approach) position. The touch sensor may be realized by any sensor as long as it can detect contact / non-contact between the indicator and the touch surface. For example, it is realized by a pressure sensor, a capacitance sensor, an optical sensor, or the like. For example, when the touch panel 3 of the portable terminal 100 of the present invention is realized by a projected capacitive touch panel, specifically, the touch sensor has a matrix-like transparent electrode pattern made of ITO (Indium Tin Oxide) or the like. It is formed on a transparent substrate such as glass or plastic. When an indicator (such as a user's finger or pen) touches or approaches the touch sensor, the electrostatic capacity of a plurality of transparent electrode patterns in the vicinity changes. Therefore, the touch panel 3 can detect the position where the indicator has contacted or approached by detecting a change in the current or voltage of the transparent electrode pattern.

  In the following, the term “touch” when referring to “detect touch”, “touch motion”, “touch position”, etc. is not only the state where the indicator and the touch surface are in complete contact (contact), It also includes a state in which the indicator and the touch surface are close (approaching) to the extent that the touch sensor can detect.

(Detector 4)
The detection unit 4 specifies a point detected by the display unit 2. Specifically, for example, when the touch panel 3 is realized by a projected capacitive touch panel, a touch panel is obtained by combining a transparent electrode in the x-axis direction (see FIG. 3) and a transparent electrode in the y-axis direction (see FIG. 3). Identify the location touched above. Further, the detection unit 4 specifies the positions of the touch start point and touch end point of the touch operation. Hereinafter, for the sake of convenience, the specification of the touch position of the detection unit 4 will be described assuming that the coordinates of the x-axis direction and the y-axis direction shown in FIG. 3 are detected and the position is specified. The x coordinate represents the x-axis coordinate indicating the horizontal direction when the user is holding the mobile terminal device, and the y coordinate is the y-axis indicating the vertical direction when the user is holding the mobile terminal device. Represents coordinates.

(Control unit 5)
The control unit 5 includes an erroneous detection determination unit 6 and a processing unit 8 as shown in FIG. Various functions realized by the control unit 5 will be described later with reference to other drawings.

(Storage unit 7)
The storage unit 7 stores position information of the erroneous detection candidate first area, the erroneous detection candidate second area, the erroneous detection assumption area, and the like determined by the control unit 5. Details will be described later with reference to another drawing.

[Grip and operation of portable terminal 100]
FIG. 3 is a diagram for explaining an example of one-handed operation of the mobile terminal 100. FIG. 3 shows a state where the portable terminal 100 is held with one hand and operated with the hand.

  In the present embodiment, the mobile terminal 100 is a palm-sized information processing apparatus that can be held with one hand. As shown in FIG. 3, while holding the mobile terminal 100 with one hand, the thumb of the hand of the display unit 2 is used. The touch surface of the touch panel 3 can be operated. In the figure, the mobile terminal 100 is gripped by the right hand, but may be gripped by the left hand.

[Functions of the mobile terminal 100]
Next, the functional configuration of the mobile terminal 100 will be described. FIG. 1 is a functional block diagram illustrating a main configuration of the mobile terminal 100 according to the present embodiment.

  As shown in FIG. 1, the control unit 5 of the mobile terminal 100 according to the present embodiment includes an erroneous detection determination unit 6 and a processing unit 8 as functional blocks for realizing the functions of the present invention. More specifically, the false detection determination unit 6 includes a detection coordinate distance determination unit 11, a false detection candidate first area determination unit 12, a false detection candidate second area determination unit 13, a false detection assumption area determination unit 14, and a false detection assumption. An area distance determination unit 15 and a touch size determination unit 16 are provided. Each functional block of the control unit 5 described above includes a CPU (central processing unit) that stores a program stored in a non-volatile storage device realized by a ROM (read only memory) or the like. It can be realized by reading and executing the above.

  The storage unit 7 includes a first area storage unit 21, a second area storage unit 22, and an assumed area storage unit 23. The erroneous detection determination unit 6 refers to information stored in the storage unit 7 when each of the above units executes a function. Alternatively, the information determined by the erroneous detection determination unit 6 is stored in the storage unit 7.

  The detected coordinate distance determination unit 11 calculates the distance between the two points from the coordinates of the touch start point specified by the detection unit 4 and the coordinates of the touch end point, and determines whether or not it is equal to or greater than the first threshold value. This will be specifically described with reference to FIG. FIG. 4 is a diagram illustrating an example of a user's touch trajectory on the touch panel of the mobile terminal 100.

  When the user performs a touch operation to draw the touch locus 50, the touch start point 50a and the touch end point 50b are detected on the touch panel 3, and the coordinates of the touch start point 50a and the touch end point 50b are specified by the detection unit 4. The detected coordinate distance determination unit 11 calculates a distance 50L between the touch start point 50a and the touch end point 50b from the coordinates of the touch start point 50a and the touch end point 50b, and determines whether the distance is equal to or greater than the first threshold value. Based on this determination, it is determined whether the touch operation that draws the touch trajectory 50 is a flick operation or a tap operation. The flick operation includes a flick operation, a drag operation, and a pinch operation.

  When the distance 50L is equal to or greater than the first threshold, the touch operation is determined to be a flick-type operation, and the touch detection end point position information (representing each position of the touch start point 50a and the touch end point 50b is indicated to the erroneous detection candidate first area determination unit 12). Here, the coordinates of the touch start point 50a and the touch end point 50b) and the touch operation designation processing information are output. If the distance 50L is not equal to or greater than the first threshold value, the touch operation is determined as a tap operation, and touch information and touch operation designation processing information are output to the erroneous detection assumed area distance determination unit 15. Here, the touch information includes a touch size and touch coordinates, and the touch coordinates are touch start / end position information in the tap operation. In addition, it is assumed that the designation processing information for the touch action includes instruction information for the designation process intended by the user designated by the touch action. In the present embodiment, 50a may be the touch end point and 50b may be the touch start point for each point constituting the trajectory.

  Moreover, about the 1st threshold value mentioned above, it uses for the determination which detects a flick type | system | group operation as a material for specifying a false detection assumption area, and is taken as the value match | combined for every portable terminal at the time of mounting. For example, (1) 0 or more, (2) about 1/4 of the screen width, (3) 1 cm or 0.5 inch, or (4) 60 dp can be set.

  The erroneous detection candidate first area determination unit 12 determines the erroneous detection candidate first area based on the touch start / end position information of the touch start point 50a and the touch end point 50b received from the detected coordinate distance determination unit 11, and determines the determined erroneous detection candidate. First area position information indicating the position of the first area is output to the first area storage unit 21.

  Here, determination of the erroneous detection candidate first area will be specifically described with reference to FIGS. FIG. 5A is a diagram illustrating an example of the relationship between the base of the thumb on the touch panel 3 of the mobile terminal 100 and the perpendicular bisector with respect to the touch start / end points, and FIG. 5B is a mobile terminal. It is explanatory drawing for demonstrating the misdetection candidate 1st area 51, the misdetection candidate 2nd area 52, and the misdetection assumption area 53 in the touch panel 3 of 100. FIG.

  First, in FIG. 5A, when the portable terminal 100 is grasped with the right hand and the touch locus 50 is drawn from the touch start point 50a to the touch end point 50b with the thumb, the touch base 3 of the operating thumb is used as the operation fulcrum. There is a possibility of touching. The touch at the base of the thumb that is being operated is not intended by the user, and if the process for enabling the touch is performed, an erroneous operation is caused. Therefore, it is necessary to determine the touch at the base of the thumb and invalidate the touch.

  Here, in order to determine the touch at the base of the thumb, first, an assumed touch area TO where the base of the thumb is located is considered. As shown in FIG. 5A, it can be said that the assumed touch area TO where the base of the thumb is located is approximately on the perpendicular bisector 50d of the line segment 50c formed by the touch start point 50a and the touch end point 50b. Furthermore, in consideration of holding the mobile terminal 100, it can be assumed that the assumed touch area TO where the base of the thumb is located is not at the center of the touch panel 3 but at the edge of the touch panel 3. In other words, if the edge of the touch panel 3 is defined by the erroneous detection assumption line 60, it can be said that the assumed touch area TO at the base of the thumb exists near the intersection of the vertical bisector 50 d and the erroneous detection assumption line 60. Here, the false detection assumption line 60 is changed according to settings such as the screen size and resolution of the mobile terminal, and is determined for each mobile terminal at the time of mounting.

  Therefore, in the erroneous detection candidate first area determination unit 12, as shown in FIG. 5B, first, from the touch start / end position information of the touch start point 50a and the touch end point 50b received from the detected coordinate distance determination unit 11, A vertical bisector 50d of a line segment 50c formed by the touch start point 50a and the touch end point 50b is obtained. Further, an intersection between the vertical bisector 50d and the false detection assumption line 60 is obtained, and the intersection is determined as a false detection candidate number. One area 51 is assumed. Also, first area position information (here, the coordinates of the above-mentioned intersection point) representing the position of the erroneous detection candidate first area 51 obtained as described above is output to the first area storage unit 21. Further, the first area storage unit 21 also stores the designation processing information for the touch motion of the touch locus 50 having the touch start point 50a and the touch end point 50b, which is used for determining the erroneous detection candidate first area 51. The first area position information and the touch operation designation processing information are stored in association with each other.

  The first area storage unit 21 includes the first area position information of the erroneous detection candidate first area 51 determined by the erroneous detection candidate first area determination unit 12 and the touch operation used to determine the erroneous detection candidate first area 51. The designated processing information is stored. Further, in the present embodiment, the first area position information of the erroneous detection candidate first area 51 is usable when the erroneous detection candidate second area determination unit 13 determines the erroneous detection candidate second area 52. Then, it is stored in the first area storage unit 21.

  The erroneous detection candidate second area determination unit 13 determines the erroneous detection candidate second area 52 using the first area position information of the erroneous detection candidate first area 51 stored in the first area storage unit 21. Second area position information indicating the position of the determined erroneous detection candidate second area is output to the second area storage unit 22.

  Here, determination of the erroneous detection candidate second area will be specifically described with reference to FIG. As described above, FIG. 5B is an explanatory diagram for explaining the false detection candidate first area 51, the false detection candidate second area 52, and the false detection assumption area 53 on the touch panel 3 of the mobile terminal 100. is there. The false detection candidate second area determination unit 13 includes first area position information of the false detection candidate first area 51 stored in the first area storage unit 21 (that is, the vertical bisector 50d and the false detection assumption line 60). ), The distance 51L between the adjacent false detection candidate first areas 51 is determined to be less than or equal to the second threshold value. When the distance 51L is equal to or smaller than the second threshold, the two adjacent erroneous detection candidate first areas 51 are set as the erroneous detection candidate second area 52. Further, the second area position information of the erroneous detection candidate second area 52 obtained as described above is output to the second area storage unit 22. Furthermore, the touch area designation processing information associated with each of the two used for determining the erroneous detection candidate second area 52 is also stored in the second area storage unit 22 at the same time. The second area position information and the touch operation designation processing information are stored in association with each other.

  If the distance 51L is not less than or equal to the second threshold, the erroneous detection candidate second area determination unit 13 determines that the erroneous detection candidate first area 51 does not correspond to the erroneous detection candidate second area 52; The touch processing designation processing information associated with the first area position information of the erroneous detection candidate first area 51 stored in the first area storage unit 21 is output to the processing unit 8. The processing unit 8 executes the touch operation designation process.

  Further, the second threshold value is changed according to the setting of the screen size and resolution of the mobile terminal and the number of erroneous detection candidate first areas 51, and is set to a value adapted to each mobile terminal at the time of mounting. As an example, in the case of a terminal of 1280 px × 720 px, which is about 1/4 of the vertical / horizontal of the screen, it may be set to 320 px for vertical and about 180 px for horizontal. Further, in the case of calculating with density-independent pixels, it may be set to 160 dp for vertical and about 90 dp for horizontal.

  The second area storage unit 22 specifies the second area position information of the erroneous detection candidate second area 52 determined by the erroneous detection candidate second area determination unit 13 and the touch operation designation process associated with the second area position information. Information (that is, touch action designation processing information associated with the erroneous detection candidate first area 51 that is the source of the erroneous detection candidate second area 52) is stored. Further, in the present embodiment, the second area position information of the erroneous detection candidate second area 52 is used so that the erroneous detection assumption area determination unit 14 can use the second detection information when the erroneous detection assumption area 53 is determined. It is stored in the area storage unit 22.

  The erroneous detection assumption area determination unit 14 uses the second area position information of the erroneous detection candidate second area 52 stored in the second area storage unit 22 to determine the erroneous detection assumption area 53. Assumed area position information indicating the determined position of the assumed erroneous detection area 53 is output to the assumed area storage unit 23.

  Here, determination of the erroneous detection assumption area 53 will be specifically described with reference to FIG. As described above, FIG. 5B is an explanatory diagram for explaining the false detection candidate first area 51, the false detection candidate second area 52, and the false detection assumption area 53 on the touch panel 3 of the mobile terminal 100. is there. The erroneous detection assumption area determination unit 14 is a second detection error candidate area 52 stored in the second area storage unit 22 (that is, of the first detection error area 51, the adjacent distance is equal to or less than the second threshold value). ) To determine whether or not the number of erroneous detection candidate second areas 52 is equal to or greater than a third threshold, and determine an erroneous detection assumption area.

  Specifically, when the number of the erroneous detection candidate second areas 52 is equal to or greater than the third threshold value, the end point 52max having the maximum y coordinate and the end point 52min having the minimum y coordinate among all the erroneous detection candidate second areas 52 are Is selected, and the line segment formed by the end point 52max and the end point 52min is determined as the erroneous detection assumption area 53. Further, the assumed area position information indicating the position of the assumed erroneous detection area 53 obtained as described above is stored in the assumed area storage unit 23, and the erroneous detection assumption area 53 stored in the second area storage unit 22 is determined. The touch processing designation processing information associated with each of the second area position information used in the above is output to the processing unit 8. The processing unit 8 executes the touch operation designation process.

  When the number of the erroneous detection candidate second areas 52 is not equal to or greater than the threshold value, the erroneous detection assumption area 53 is not determined and is associated with the second area position information stored in the second area storage unit 22. The touch processing designation processing information is output to the processing unit 8. The processing unit 8 executes the touch operation designation process.

  In addition, the third threshold value is a value that is adjusted for each portable terminal at the time of mounting. As an example, it may be set to about 4 points.

  Here, in the present embodiment, the erroneous detection assumption area 53 is a line segment, but is not limited to a line segment. For example, it may be a region including the end point 52max having the maximum y coordinate and the end point 52min having the minimum y coordinate in all the erroneous detection candidate second areas 52.

  The assumed area storage unit 23 stores assumed area position information of the erroneous detection assumption area 53 determined by the erroneous detection assumption area determination unit 14. Further, in the present embodiment, the assumed area position information of the erroneous detection assumption area 53 is related to the touch action that the erroneous detection assumption area distance determination unit 15 determines as a tap operation by the detected coordinate distance determination unit 11. Is stored in the assumed area storage unit 23 so that it can be used when determining the distance between the touch coordinates and the erroneous detection assumed area 53.

  Here, the storage operation of the touch locus for determining the erroneous detection assumption area 53 in the control unit 5, specifically, the detection coordinate distance determination unit 11 determines the touch operation as a flick system operation, and then stores the assumed area. The processing until the assumed area position information of the erroneous detection assumption area 53 is stored in the unit 23 is performed as needed from the release of the lock screen to the panel save even after the erroneous detection assumption area 53 is determined. That is, the erroneous detection assumption area 53 is updated as needed from the release of the lock screen to the panel save. In consideration of the possibility that re-gripping of the mobile terminal 100 occurs when the panel is saved at a time when the user does not use it, each storage unit (first area storage unit 21, second area storage unit 22, assumption) The memory in the area storage unit 23) is reset every time after the panel is saved. Furthermore, it is preferable that the touch detection for determining the erroneous detection assumption area is a situation where there are many free operations. Specifically, it may be a home screen operation when browsing the Web. Further, the reset time may be at the time of switching between the vertical and horizontal screens and at the time of switching between applications other than at the time of panel saving.

  The erroneous detection assumed area distance determination unit 15 uses the assumed area position information of the erroneous detection assumption area 53 stored in the assumed area storage unit 23 and relates to the touch operation that is determined as a tap operation by the detected coordinate distance determination unit 11. The distance between the touch coordinates of the touch operation and the erroneous detection assumption area 53 is determined, and the touch information is output to the touch size determination unit 16.

  Here, the determination of the distance between the touch operation and the erroneous detection assumption area 53 will be specifically described with reference to FIG. FIG. 6 is a diagram illustrating an example of a touch operation on the erroneous detection assumption area 53 on the touch panel 3 of the mobile terminal 100. T indicates a touch operation. The erroneous detection assumption area distance determination unit 15 determines whether or not the distance 54L between the touch coordinates of the touch operation T and the reference point 54 of the detection error assumption area 53 is equal to or smaller than a fourth threshold value. The reference point 54 of the erroneous detection assumption area 53 may be the center point of the erroneous detection assumption area 53, for example. In the drawing, the touch operation T is on the erroneous detection assumption line 60, but may be a touch operation that is not on the erroneous detection assumption line 60. The distance 54L may be a distance from the edge of the touch operation T to the reference point 54, or may be a distance from the center of the touch operation T to the reference point 54. If the distance 54L is equal to or smaller than the fourth threshold value, the erroneous detection assumption area distance determination unit 15 determines that the touch action T may be erroneously operated, and touch information of the touch action T and touch action designation processing information. Is output to the touch size determination unit 16. If the distance 54L is not less than or equal to the fourth threshold value, the erroneous detection assumption area distance determination unit 15 determines that the touch operation is not an erroneous operation, and outputs the touch operation designation processing information to the processing unit 8. . The processing unit 8 executes the touch operation designation process.

  In addition, the fourth threshold value is a value adapted to each mobile terminal at the time of mounting. For example, when the touch panel is pressed, the size of the thumb is 10 mm to 22 mm. Therefore, assuming that the distance from the reference point 54 of the false detection assumption area 53 is a radius, it is about 5 mm to 11 mm, and is set to about 0.5 inch. May be. Further, it may be set to about 60 dp on the density-independent pixel.

  The touch size determination unit 16 determines whether or not the touch size of the touch operation T is greater than or equal to a fifth threshold based on the touch information output from the erroneous detection assumed area distance determination unit 15. Specifically, when the touch size is equal to or larger than a fifth threshold, the touch size determination unit 16 determines that the touch operation is a touch at the base of the thumb (erroneous operation), and specifies the touch operation designation processing information. And the above result is output to the processing unit 8. The processing unit 8 processes the touch operation as invalid. Alternatively, a signal is output to the display unit 2 to warn the user whether the operation is incorrect by using the screen display (toast display).

  If the touch size of the touch action is not equal to or greater than the fifth threshold, the touch size determination unit 16 determines that the touch action T is a touch action intended by the user, and processes the touch action designation processing information. To the unit 8. The processing unit 8 executes the touch operation designation process.

  In addition, the fifth threshold value is a value adapted to each mobile terminal at the time of mounting. For example, when the touch panel is pressed, the size of the thumb is 10 mm to 22 mm. Therefore, assuming that the distance from the reference point 54 of the false detection assumption area 53 is a radius, it is about 5 mm to 11 mm, and is set to about 0.5 inch. May be. Further, it may be set to about 60 dp on the density-independent pixel.

  The processing unit 8 receives determination result and touch action designation processing information from the erroneous detection candidate second area determination unit 13, the erroneous detection assumption area determination unit 14, the erroneous detection assumption area distance determination unit 15, and the touch size determination unit 16, respectively. And process according to the above description. Specifically, the touch size determining unit 16 processes that the touch motion determined to be equal to or larger than the fifth threshold is invalid. Alternatively, a signal is output to the display unit 2 to warn the user whether the operation is incorrect by using the screen display (toast display). All other touch operations perform a process of executing a designation process.

[Flow of processing in portable terminal 100]
Next, the flow of processing in the mobile terminal 100 will be described based on FIGS.

(Processing flow for determining whether the touch action is a flick operation or a tap operation)
Based on FIG. 7, the flow of determination processing for determining whether the touch operation is a flick operation or a tap operation will be described. FIG. 7 shows an example of a flowchart of processing for determining whether the touch operation is a flick operation or a tap operation.

  As shown in FIG. 7, after the lock is released in the mobile terminal 100, the touch panel 3 detects a touch operation (S1). When it is determined that the touch operation is not detected (“No” in S1), the touch panel is in a state of waiting for detection of the touch operation.

  On the other hand, when it is determined that the touch panel 3 has detected the touch operation (“Yes” in S1), the detection unit 4 determines the coordinates of the touch start point 50a and the touch end point 50b of the touch operation (S2) and detects the touch operation. It outputs to the coordinate distance determination part 11.

  In the detected coordinate distance determination unit 11, the distance 50L between the touch start point 50a and the touch end point 50b is first determined based on the touch start / end position information (here, coordinates) of the touch start point 50a and the touch end point 50b output from the detection unit 4. It is determined whether or not the threshold value is exceeded (S3).

  When the distance 50L is equal to or greater than the first threshold (“Yes” in S3), the touch motion is determined as a flick-type operation, and the touch start / end position information and the touch motion designation processing information are used as false detection candidates. The data is output to one area determination unit 12 (S4). On the other hand, when the distance 50L is not greater than or equal to the first threshold (“No” in S3), the touch action is determined as a tap operation, and the touch information and the touch action designation processing information are detected as erroneous detection assumed area distances. The data is output to the determination unit 15 (S5).

(Flow of processing up to determining the false detection assumption area when it is determined that the touch action is a flick operation)
Based on FIG. 8, the flow of processing up to the determination of the erroneous detection assumption area when it is determined that the touch operation is a flick operation will be described. FIG. 8 shows an example of a flowchart of processing when the touch operation is a flick operation. As shown in the figure, after the touch operation is determined to be a flick operation, the touch start point 50a and the touch start / end position information output from the detected coordinate distance determination unit 11 in the erroneous detection candidate first area determination unit 12 are determined. A line segment 50c formed by the touch end point 50b and a vertical bisector 50d in the line segment 50c are obtained (S41).

  Furthermore, the intersection of the perpendicular bisector 50d and the erroneous detection assumption line 60 that defines the edge of the touch panel 3 is obtained. The said intersection is made into the misdetection candidate 1st area 51, The 1st area position information (here the coordinate of the above-mentioned intersection) of the said misdetection candidate 1st area 51 is linked | related with the 1st area memory | storage part 21 and the said touch The operation designation processing information is stored together (S42).

  After S42 processing, the erroneous detection candidate second area determination unit 13 refers to the first area position information stored in the first area storage unit 21, and the distance 51L adjacent to the erroneous detection candidate first area 51 is the second. It is determined whether or not it is equal to or less than a threshold value (S43). When the distance 51L is equal to or smaller than the threshold (“Yes” in S43), the erroneous detection candidate first area 51 is set as the erroneous detection candidate second area 52. In addition, the second area storage unit 22 stores the second area position information indicating the position of the erroneous detection candidate second area 52 and the touch operation associated with each used for determining the erroneous detection candidate second area 52. Are stored together (S44).

  On the other hand, when the distance 51L is not less than or equal to the second threshold (“No” in S43), it is determined that the erroneous detection candidate first area 51 does not correspond to the erroneous detection candidate second area 52, and the erroneous detection candidate first The touch motion designation processing information associated with one area 51 is output to the processing unit 8 and the touch motion designation processing is executed (S47).

  After S44 processing, the erroneous detection assumption area determination unit 14 refers to the second area position information stored in the second area storage unit 22, and determines whether or not the number of erroneous detection candidate second areas 52 is equal to or greater than the third threshold value. Is determined (S45). When the number of the erroneous detection candidate second areas 52 is equal to or larger than the third threshold (“Yes” in S45), y among all the erroneous detection candidate second areas 52 stored in the second area storage unit 22 The end point 52max having the maximum coordinate and the end point 52min having the minimum y coordinate are selected, and the line segment formed by the end point 52max and the end point 52min is determined as the erroneous detection assumption area 53. Further, the assumed area position information of the erroneous detection assumed area 53 is stored in the assumed area storage unit 23 (S46). In addition, touch processing designation processing information associated with each of the second area position information used to determine the erroneous detection assumption area 53 stored in the second area storage unit 22 is output to the processing unit 8. Then, a touch operation designation process is executed (S47).

  When the number of the erroneous detection candidate second areas 52 is not equal to or greater than the third threshold (“No” in S45), the erroneous detection assumption area 53 is not determined and is stored in the second area storage unit 22. The touch action designation process information associated with the second area position information of the erroneous detection candidate second area 52 is output to the processing unit 8, and the touch action designation process is executed (S47).

(Processing flow until determination of erroneous operation when it is determined that the touch action is a tap operation)
Based on FIG. 9, the flow of processing up to the determination of an erroneous operation when it is determined that the touch operation is a tap operation will be described. FIG. 9 shows an example of a flowchart of processing when the touch operation is a tap operation.

  As shown in FIG. 9, after the detection coordinate distance determination unit 11 determines that the touch operation is a tap operation, the erroneous detection assumption area distance determination unit 15 stores the erroneous detection stored in the assumed area storage unit 23. Using the assumed area position information of the assumed area 53, it is determined whether or not the distance 54L between the touch coordinates of the touch operation output from the detected coordinate distance determining unit 11 and the erroneous detection assumed area 53 is equal to or smaller than a fourth threshold value. Perform (S51).

  When the distance 54L is equal to or smaller than the fourth threshold value (“Yes” in S51), the touch motion touch information and the touch motion designation processing information are determined as a touch size determination unit on the assumption that the touch motion may be erroneously operated. 16 is output. On the other hand, when the distance 54L is not less than or equal to the fourth threshold (“No” in S51), the erroneous detection assumption area distance determination unit 15 determines that the touch operation is not an erroneous operation, and specifies the touch operation designation processing information. Is output to the processing unit 8 and the touch operation designation processing is executed (S54).

  After the processing of S51, the touch size determination unit 16 determines whether or not the touch size of the touch operation is greater than or equal to a fifth threshold based on the touch information output from the erroneous detection assumed area distance determination unit 15 (S52). When the touch size is greater than or equal to the fifth threshold (“Yes” in S52), the touch size determination unit 16 determines that the touch operation is a touch at the base of the thumb (erroneous operation), and specifies the touch operation. The information and the result are output to the processing unit 8, and the touch operation is processed as invalid. Alternatively, a signal is output to the display unit 2 to warn the user whether the operation is erroneous by using the screen display (toast display) (S53). After S53, the process returns to the touch detection standby state (a).

  On the other hand, when the touch size of the touch motion is not equal to or larger than the fifth threshold (“No” in S52), the touch size determination unit 16 determines that the touch motion is a touch motion intended by the user, and the touch motion The designation processing information is output to the processing unit 8, and the touch motion designation processing is executed (S54).

  With the above configuration, the erroneous detection assumption area 53 can be dynamically calculated. Therefore, when a touch operation is detected at the edge of the touch panel 3, whether the touch operation is an operation intended by the user or an erroneous operation is determined. Determination can be made without reducing the sensitivity of the touch panel edge.

[Embodiment 2]
First, one embodiment of the present invention will be described with reference to FIGS. For convenience of explanation, members having the same functions as those in the drawings described in the first embodiment are given the same reference numerals, and descriptions thereof are omitted.

  The mobile terminal 100A in the present embodiment includes a gyro sensor in the hardware configuration of the mobile terminal 100 in the present embodiment.

[Function of portable terminal 100A]
When the user performs an operation, the right thumb as the operation fulcrum may touch the touch panel 3A only in the lower (vertical direction) area of the touch panel 3A. Therefore, the intersection of the perpendicular bisector 50A for obtaining the erroneous detection candidate first area 51A and the erroneous detection assumption line 60 may be obtained only on the lower side (vertical direction) of the touch panel 3A.

  When the mobile terminal 100A includes the gyro sensor, the orientation of the mobile terminal 100A can be determined. With the above configuration, the processing in the first embodiment of the erroneous detection candidate first area determination unit 12 is different from that in the first embodiment. This will be described more specifically with reference to FIG. FIG. 10 is an explanatory diagram for explaining a first false detection candidate area 51A, a second false detection candidate area 52A, and a false detection assumption area 53A on the touch panel 3A of the mobile terminal 100A.

  In the erroneous detection candidate first area determination unit 12 in the mobile terminal 100A, as shown in FIG. 10, a line formed by the touch start point 50a and the touch end point 50b from the touch start point 50a and the touch end point 50b of the touch operation on the touch panel 3A. The fraction 50c is obtained, and further a perpendicular bisector is obtained. At this time, a downward direction (vertical direction) A is sensed by the gyro sensor, and the vertical bisector is extended only in the downward direction A from the line segment 50c to obtain a vertical bisector 50A. Furthermore, the intersection of the said perpendicular bisector 50A and the false detection assumption line 60 is calculated | required, and it is set as the false detection candidate 1st area 51A. That is, in the second embodiment, by using the gyro sensor, the downward direction A is acquired, and the vertical bisector 50A for determining the erroneous detection candidate first area 51A is formed only in the downward direction A. This is different from the first embodiment.

[Flow of processing in portable terminal 100A]
Next, processing different from that in the first embodiment in the flow of processing in the mobile terminal 100A will be described based on FIGS. 10 and 11.

(Flow of processing up to determining the false detection assumption area when it is determined that the touch action is a flick operation)
Based on FIG. 10 and FIG. 11, a flow of processing up to determination of an erroneous detection assumption area when it is determined that the touch operation is a flick operation will be described. FIG. 11 shows an example of a flowchart of processing when the touch operation is a flick operation.

  As shown in FIG. 11, after the touch operation is determined to be a flick-type operation, the touch detection point first area determination unit 12 includes the touch start point 50 a and the touch end point 50 b output from the detected coordinate distance determination unit 11. A line segment 50c is obtained. Further, the vertical bisector 50A of the line segment is obtained only in the downward direction (vertical direction) (S61).

  Furthermore, the intersection of the said perpendicular bisector 50A and the false detection assumption line 60 which prescribes | regulates the edge part of the touch panel 3A is calculated | required, and it is set as the false detection candidate 1st area 51A. In addition, the first area storage unit 21 stores the first area position information (here, the coordinates of the above-mentioned intersection) of the erroneous detection candidate first area 51A and the touch operation associated with the erroneous detection candidate first area 51A. The designated processing information is stored together (S62).

  After the process of S62, the erroneous detection candidate second area determination unit 13 refers to the first area position information stored in the first area storage unit 21, and the distance 51L adjacent to the erroneous detection candidate first area 51A is the second. It is determined whether or not it is equal to or less than a threshold value (S63). When the distance 51L is equal to or smaller than the second threshold (“Yes” in S63), the erroneous detection candidate first area 51A is set as the erroneous detection candidate second area 52A. In addition, the second area storage unit 22 uses the second area position information of the erroneous detection candidate second area 52A and the touch motion designation process associated with each of the second detection information and the second detection error second area 52A. Information is stored together (S64).

  On the other hand, when the distance 51L is not less than or equal to the second threshold (“No” in S63), it is determined that the erroneous detection candidate first area 51A does not correspond to the erroneous detection candidate second area 52A. The touch action designation process information associated with the area 51A is output to the processing unit 8 and the touch action designation process is executed (S67).

  After S64 processing, the erroneous detection assumption area determination unit 14 refers to the second area position information stored in the second area storage unit 22 and determines whether the number of erroneous detection candidate second areas 52A is equal to or greater than the third threshold. Is determined (S65). When the number of the erroneous detection candidate second areas 52A is equal to or greater than the third threshold (“Yes” in S65), the y coordinate in all the erroneous detection candidate second areas 52A stored in the second area storage unit 22 The end point 52Amax having the maximum y and the end point 52Amin having the minimum y coordinate are selected, and the line segment formed by the end point 52Amax and the end point 52Amin is determined as the erroneous detection assumption area 53A. Further, the assumed area position information of the erroneous detection assumed area 53A is stored in the assumed area storage unit 23 (S66). In addition, the touch processing designation processing information associated with each of the second area position information used to determine the erroneous detection assumption area 53 </ b> A stored in the second area storage unit 22 is output to the processing unit 8. Then, a touch operation designation process is executed (S67).

  On the other hand, when the number of the erroneous detection candidate second areas 52A is not equal to or larger than the third threshold (“No” in S65), the erroneous detection assumption area 53A is not determined and is stored in the second area storage unit 22. The touch action designation process information associated with the second area position information of the erroneous detection candidate second area 52A is output to the processing unit 8 and the touch action designation process is executed (S67).

  Except for the configuration described above, the configuration is the same as that of the first embodiment.

  With the above configuration, the number of intersections between the vertical bisector and the false detection assumption line can be reduced. That is, it is possible to reduce the amount of processing until determination of an erroneous operation.

[Embodiment 3]
First, an embodiment of the present invention will be described with reference to FIGS. For convenience of explanation, members having the same functions as those in the drawings described in the first and second embodiments are denoted by the same reference numerals and description thereof is omitted.

  The mobile terminal 100B in the present embodiment includes a configuration that prompts a right-handed one-hand operation to the configuration of the mobile terminal 100 in the present embodiment. For example, a shape that prompts a right-hand operation or a key arrangement that prompts a right-hand operation is provided. In addition, the above configuration may be a configuration that promotes a left-handed one-hand operation. Here, “right hand one-hand operation” means “gripping the mobile terminal only with the right hand and operating with the right hand finger”, and left hand one-hand operation means “holding the mobile terminal with only the left hand and using the left hand finger”. Represents "operation".

[Function of portable terminal 100B]
By providing the mobile terminal 100B with a configuration that prompts the right-handed one-hand operation, the user can operate the mobile terminal 100B with the right-handed one-hand. When the user performs an operation with one right hand, the base of the thumb of the right hand may touch the touch panel 3B as an operation fulcrum only in the area on the right side (reference to FIG. 12) of the touch panel 3B. Therefore, the intersection of the perpendicular bisector 50B for obtaining the false detection candidate first area 51B and the false detection assumption line 60 may be obtained only on the right side (reference to FIG. 12) of the touch panel 3B. In addition, there is a high possibility that the operation area of the right thumb that is likely to cause an erroneous operation due to the base of the thumb of the right hand is when the left side of the touch panel (reference to FIG. 12) is operated. Therefore, the coordinates for taking the operation history can be narrowed down to the left side of the touch panel 3B (reference to FIG. 12). With the above configuration, the processing in the first embodiment of the erroneous detection candidate first area determination unit 12 is different from that in the first embodiment. More specific description will be given based on FIG. FIG. 12 is an explanatory diagram for explaining a false detection candidate first area 51B, a false detection candidate second area 52B, and a false detection assumption area 53B on the touch panel of the mobile terminal according to the embodiment of the present invention.

  In the erroneous detection candidate first area determination unit 12 in the mobile terminal 100B, as shown in FIG. 12, based on the position information of the touch start point 50a and the touch end point 50b on the touch panel 3B received from the detection coordinate distance determination unit 11, The vertical bisector 50B is obtained only for the line segment 50c formed by the touch start point 50a and the touch end point 50b within the range L on the left side of the touch panel 3B. Further, the intersection of the vertical bisector 50B and the erroneous detection assumption line 60 is obtained only on the right side (reference to FIG. 12) of the touch panel 3B, and the erroneous detection candidate first area 51B is determined. That is, in the third embodiment, by causing the user to perform a right-handed one-hand operation, the vertical bisector 50B is obtained only for the line segment 50c that falls within the range L on the left side of the touch panel 3B. The difference from the first embodiment is that the intersection with the detection detection line 60 is obtained only on the right side (reference to FIG. 12) of the touch panel 3B.

[Flow of processing in portable terminal 100B]
Next, based on FIG. 12 and FIG. 13, the processing flow in the mobile terminal 100B will be described with respect to processing different from that in the first embodiment.

(Flow of processing up to determining the false detection assumption area when it is determined that the touch action is a flick operation)
Based on FIG. 12 and FIG. 13, a flow of processing up to determination of an erroneous detection assumption area when it is determined that the touch operation is a flick operation will be described. FIG. 13 shows an example of a flowchart of processing when the touch operation is a flick operation.

  As illustrated in FIG. 13, after the touch operation is determined to be a flick operation, the touch start point 50 a and the touch end point 50 b output from the detected coordinate distance determination unit 11 in the false detection candidate first area determination unit 12 are It is determined whether or not the touch panel 3B is on the left side of the sixth threshold (S71). When the touch start point 50a and the touch end point 50b are on the left side of the sixth threshold value on the touch panel 3B (“Yes” in S71), the vertical bisector 50B in the line segment 50c formed by the touch start point 50a and the touch end point 50b is displayed. Obtained (S72).

  Further, the intersection of the vertical bisector 50B and the false detection assumption line 60 that defines the edge of the touch panel 3B is obtained only on the right side (reference to FIG. 12) of the touch panel 3B, and is designated as a false detection candidate first area 51B. Further, the first area storage unit 21 stores the first area position information of the first erroneous detection candidate first area 51B (here, the coordinates of the above-mentioned intersection) and the touch action associated with the first erroneous detection candidate first area 51B. The designated processing information is stored together (S73).

  Further, when the touch start point 50a and the touch end point 50b are not on the left side of the sixth threshold value on the touch panel 3B (“No” in S71), the touch operation designation processing information is output to the processing unit 8, and the touch operation designation is performed. The process is executed (S78).

  After the process of S73, the erroneous detection candidate second area determining unit 13 refers to the first area position information stored in the first area storage unit 21, and the distance 51L adjacent to the erroneous detection candidate first area 51B is the second. It is determined whether or not it is equal to or less than a threshold value (S74). When the distance 51L is equal to or smaller than the second threshold (“Yes” in S74), the erroneous detection candidate first area 51B is set as the erroneous detection candidate second area 52B. In addition, the second area storage unit 22 designates the second area position information of the erroneous detection candidate second area 52B and the touch action associated with each used for determining the erroneous detection candidate second area 52B. The processing information is stored together (S75).

  On the other hand, when the distance 51L is not less than or equal to the second threshold (“No” in S74), it is determined that the erroneous detection candidate first area 51B does not correspond to the erroneous detection candidate second area 52B. The touch motion designation processing information associated with the area 51B is output to the processing unit 8 and the touch motion designation processing is executed (S78).

  After S75 processing, the erroneous detection assumption area determination unit 14 refers to the second area position information stored in the second area storage unit 22 and determines whether the number of erroneous detection candidate second areas 52B is equal to or greater than the third threshold value. Is determined (S76). When the number of the erroneous detection candidate second areas 52B is equal to or larger than the third threshold (“Yes” in S76), the y coordinate in all the erroneous detection candidate second areas 52B stored in the second area storage unit 22 Is selected as the end point 52Bmax and the y-coordinate is the minimum end point 52Bmin, and the line segment formed by the end point 52Bmax and the end point 52Bmin is determined as the erroneous detection assumption area 53B. Also, the assumed area position information of the erroneous detection assumed area 53B is stored in the assumed area storage unit 23 (S77). In addition, the touch processing designation processing information associated with each of the second area position information used for the determination of the erroneous detection assumption area 53 </ b> B stored in the second area storage unit 22 is output to the processing unit 8. Then, a touch operation designation process is executed (S78).

  On the other hand, when the number of the erroneous detection candidate second areas 52B is not greater than or equal to the third threshold (“No” in S76), the erroneous detection assumption area 53B is not determined and is stored in the second area storage unit 22. The touch motion designation processing information associated with the second area position information of the erroneous detection candidate second area 52B is output to the processing unit 8, and the touch motion designation processing is executed (S78).

  Except for the configuration described above, the configuration is the same as that of the first embodiment.

  With the above configuration, the number of the perpendicular bisectors can be reduced. That is, it is possible to reduce the amount of processing until determination of an erroneous operation.

  In addition, the sixth threshold value is a value adapted to each mobile terminal at the time of mounting. As an example, the touch at the base of the thumb is considered to occur up to the first joint of the thumb. Further, the length of the thumb is considered to be about 6 cm, and the length to the first joint of the thumb is considered to be about 3 cm. Therefore, it can be assumed that the touch at the base of the thumb can occur about 3 cm from the right end of the mobile terminal (based on the state where the right hand one-hand operation is performed) or about 3 inches from the right end of the mobile terminal. Therefore, the sixth threshold value may be about 3 cm from the right end of the mobile phone or about 3 inches from the right end of the mobile terminal when the right hand one-hand operation is being performed. On the density-independent pixels, 360 dp or more may be set from the right end of the mobile terminal (based on a state where a right-handed one-hand operation is performed). Further, depending on the size of the terminal, it may be set as half of the touch panel.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

[Summary]
A mobile terminal device according to an aspect of the present invention is provided.
A detection unit that detects a touch start point and a touch end point of a touch operation on the touch panel;
The intersection of the perpendicular bisector connecting the touch start point and the touch end point and the false detection assumption line that defines the edge of the touch panel is obtained, and the error is determined as the false detection candidate first area. A detection candidate first area determination unit;
Of the plurality of first false detection candidate first areas determined by the first false detection candidate first area determination unit, a distance between two false first detection candidate areas that are adjacent to each other is selected below a first threshold value. And a false detection candidate second area determination unit that sets the selected two false detection candidate first areas as the false detection candidate second area,
When the number of the plurality of erroneous detection candidate second areas determined by the erroneous detection candidate second area determination unit is equal to or greater than a third threshold, an erroneous detection assumption area using the plurality of erroneous detection candidate second areas A false detection assumption area determination unit for determining
In the touch operation after the touch operation, an erroneous detection assumption area distance determination unit that determines whether the position of the touch operation is a distance within a fourth threshold from the reference point of the erroneous detection assumption area;
When the erroneous detection assumption area determination unit determines that the distance is within the fourth threshold from the reference point of the erroneous detection assumption area, it is determined whether the size of the touch operation is larger than the fifth threshold. A touch size determination unit to perform,
When the touch size determination unit determines that the size of the touch operation is larger than the fifth threshold value, a processing unit that processes the touch operation as invalid;
It is characterized by providing.

In addition, an erroneous operation determination method according to an aspect of the present invention includes:
A first step of detecting a touch start point and a touch end point of a touch operation on the touch panel;
The intersection of the perpendicular bisector connecting the touch start point and the touch end point and the false detection assumption line that defines the edge of the touch panel is obtained, and the intersection is designated as a false detection candidate first area. Two steps,
Among the plurality of false detection candidate first areas determined in the second step, the one having a distance between two adjacent false detection candidate first areas that are adjacent to each other is equal to or less than a first threshold, and the selection A third step in which the two erroneous detection candidate first areas are set as the false detection candidate second area;
When the number of the plurality of false detection candidate second areas determined in the third step is equal to or greater than a third threshold, the erroneous detection assumption area is determined using the plurality of false detection candidate second areas. With four steps,
In the touch operation after the touch operation, a fifth step of determining whether the position of the touch operation is a distance within a fourth threshold from the reference point of the erroneous detection assumption area;
When it is determined by the fifth step that the distance is within the fourth threshold from the reference point of the erroneous detection assumption area, a first determination is made as to whether or not the size of the touch action is larger than the fifth threshold. Six steps and
And a seventh step of processing the touch operation as invalid when it is determined in the sixth step that the size of the touch operation is larger than the fifth threshold value.

  With the above configuration, even when it is desired to touch the edge of the touch panel according to the user's intention, it is possible to reduce the possibility that the touch operation at the edge of the touch panel is determined as an erroneous operation and the touch operation is invalidated. Further, since the erroneous detection candidate first area is determined by the touch start point and the touch end point, it is possible to cope with both right-handed and left-handed operations. In addition, when holding with both hands and operating with the index finger, it is possible to avoid erroneous detection of an erroneous operation of the edge by determining the size in the size detection unit, so that unnecessary sensitivity adjustment is not performed.

Furthermore, the determination of the erroneous detection assumption area by the erroneous detection assumption area determination unit is as follows.
It is preferable to determine the erroneous detection assumption area by using two points that are most distant from each other among the plurality of erroneous detection candidate second areas.

  With the above configuration, it is possible to determine a false detection assumption area that includes all of the plurality of false detection candidate second areas.

  Further, it is preferable that the erroneous detection assumption area is a line segment connecting the two points.

  With the above configuration, the erroneous detection assumption area can be grasped succinctly, and it is easy to make a determination using the erroneous detection assumption area after the erroneous detection assumption area is determined.

  Furthermore, it is preferable that the reference point of the erroneous detection assumption area is a center point of the erroneous detection assumption area.

  With the above configuration, the fourth threshold value can be simply set when the distance is determined using the reference point.

  Further, the determination by the erroneous detection assumed area distance determination unit is preferably executed when the touch operation is a tap-type operation.

  With the above configuration, it is determined that there is no erroneous operation except for the tap operation, so that the amount of processing until the erroneous operation is determined can be reduced as compared with the case where all operations are targeted.

  Further, when the mobile terminal device is tilted in the vertical direction, the erroneous detection candidate first area determination unit obtains an intersection point between the vertical bisector and the erroneous detection assumption line along the vertical direction. It is preferable.

  With the above configuration, the number of intersections between the vertical bisector and the erroneous detection assumption line can be reduced. That is, it is possible to reduce the amount of processing until determination of an erroneous operation.

Furthermore, when the mobile terminal device is operated with the right hand, the detection unit detects the touch start point and the touch end point on the left side of the touch panel,
When the portable terminal device is operated with the left hand, it is preferable that the detection unit detects the touch start point and the touch end point on the right side of the touch panel.

  With the above configuration, the number of the perpendicular bisectors can be reduced. That is, it is possible to reduce the amount of processing until determination of an erroneous operation.

  Further, a control program for operating the mobile terminal device, the control program for causing the computer to function as each of the above-described means, and a computer-readable recording medium recording the control program are also within the technical scope of the present invention. included.

  According to the above control program, a recording device can be realized on a computer by realizing the above means on the computer. Further, according to the recording medium, the control program read from the recording medium can be realized on a general-purpose computer.

[Example of software implementation]
Finally, each block of the mobile terminal 100, in particular, the detection coordinate distance determination unit 11, the erroneous detection candidate first area determination unit 12, the erroneous detection candidate second area determination unit 13, the erroneous detection assumption area determination unit 14, and the erroneous detection assumption The area distance determination unit, the touch size determination unit 16, and the processing unit 8 may be configured by hardware logic, or may be realized by software using a CPU as follows.

  In the latter case, the mobile terminal 100 includes a CPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, a RAM (Random Access Memory) that expands the program, the program, and various types of programs. A storage device (recording medium) such as a memory for storing data is provided. An object of the present invention is to provide a recording medium in which a program code (execution format program, intermediate code program, source program) of a control program of the mobile terminal 100 which is software that realizes the above-described functions is recorded in a computer-readable manner This can also be achieved by supplying the portable terminal 100 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).

  Examples of the recording medium include non-transitory tangible medium, such as magnetic tape and cassette tape, magnetic disk such as floppy (registered trademark) disk / hard disk, and CD-ROM / MO. Discs including optical discs such as / MD / DVD / CD-R, cards such as IC cards (including memory cards) / optical cards, semiconductor memories such as mask ROM / EPROM / EEPROM (registered trademark) / flash ROM Alternatively, logic circuits such as PLD (Programmable Logic Device) and FPGA (Field Programmable Gate Array) can be used.

  Further, the mobile terminal 100 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited as long as it can transmit the program code. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, and the like can be used. The transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type. For example, even with wired lines such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), IEEE 802.11 wireless, HDR ( It can also be used by radio such as High Data Rate (NFC), Near Field Communication (NFC), Digital Living Network Alliance (DLNA), mobile phone network, satellite line, and digital terrestrial network. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention can be widely applied to information processing apparatuses including an input unit and a display unit. For example, but not limited to this, a digital TV, personal computer, smartphone, tablet PC, notebook computer, mobile phone, PDA (Personal Digital Assistant), e-book reader, electronic dictionary, portable, provided with an input unit and a display unit -It can be used suitably for a home game machine, an electronic blackboard, etc. Furthermore, if the present invention is applied to an information processing apparatus including a touch panel, it is possible to realize even better operability.

100 mobile terminal 100A mobile terminal 100B mobile terminal
2 display section
3 Touch panel
3A touch panel
3B touch panel
4 detector
5 Control unit
6 false detection judgment part
7 Memory part
8 processing section
11 Detection coordinate distance determination unit
12 False detection candidate first area determination unit
13 false detection candidate second area determination unit
14 false detection assumption area determination part
15 false detection assumption area distance judgment part
16 Touch size determination unit
21 First area storage
22 Second area storage
23 Assumed area storage
50 Touch locus 50a Touch start point (end point)
50b Touch end point (start point)
50c line segment 50d vertical bisector 50A vertical bisector 50B vertical bisector 50L distance
51 false detection candidate first area 51A false detection candidate first area 51B false detection candidate first area 51L distance
52 second false detection candidate area 52A second false detection candidate area 52B second false detection candidate area 52max end point 52min end point 52Amax end point 52Amin end point 52Bmax end point 52Bmin end point
53 False detection assumption area 53A False detection assumption area 53B False detection assumption area
54 Reference point 54L Distance
60 False detection assumption line
A downward direction
L range
T touch operation
TO touch area

Claims (10)

A detection unit that detects a touch start point and a touch end point of a touch operation on the touch panel;
The intersection of the perpendicular bisector connecting the touch start point and the touch end point and the false detection assumption line that defines the edge of the touch panel is obtained, and the error is determined as the false detection candidate first area. A detection candidate first area determination unit;
Of the plurality of first false detection candidate first areas determined by the first false detection candidate first area determination unit, a distance between two false first detection candidate areas that are adjacent to each other is selected below a first threshold value. And a false detection candidate second area determination unit that sets the selected two false detection candidate first areas as the false detection candidate second area,
When the number of the plurality of erroneous detection candidate second areas determined by the erroneous detection candidate second area determination unit is equal to or greater than a third threshold, an erroneous detection assumption area using the plurality of erroneous detection candidate second areas A false detection assumption area determination unit for determining
In the touch operation after the touch operation, an erroneous detection assumption area distance determination unit that determines whether the position of the touch operation is a distance within a fourth threshold from the reference point of the erroneous detection assumption area;
When the erroneous detection assumption area determination unit determines that the distance is within the fourth threshold from the reference point of the erroneous detection assumption area, it is determined whether the size of the touch operation is larger than the fifth threshold. A touch size determination unit to perform,
A portable terminal device comprising: a processing unit that processes the touch operation as invalid when the touch size determination unit determines that the size of the touch operation is larger than the fifth threshold value. The determination of the erroneous detection assumption area by the erroneous detection assumption area determination unit is as follows.
2. The mobile terminal device according to claim 1, wherein, in the plurality of second erroneous detection candidate second areas, the erroneous detection assumption area is determined using two points that are farthest apart from each other. .   The portable terminal device according to claim 2, wherein the erroneous detection assumption area is a line segment connecting the two points.   4. The mobile terminal device according to claim 1, wherein the reference point of the erroneous detection assumption area is a center point of the erroneous detection assumption area. 5.   The mobile terminal device according to any one of claims 1 to 4, wherein the determination by the erroneous detection assumed area distance determination unit is executed when the touch operation is a tap-type operation.   When the mobile terminal device is tilted in the vertical direction, the erroneous detection candidate first area determination unit obtains an intersection point between the vertical bisector and the erroneous detection assumption line along the vertical direction. The mobile terminal device according to claim 1, wherein the mobile terminal device is a mobile terminal device. When the mobile terminal device is operated with the right hand, the detection unit detects the touch start point and the touch end point on the left side of the touch panel,
The said detection part detects the said touch start point and the said touch end point in the right side of the said touch panel when the said portable terminal device is operated by the left hand, The any one of Claim 1 to 6 characterized by the above-mentioned. Mobile terminal device. A first step of detecting a touch start point and a touch end point of a touch operation on the touch panel;
The intersection of the perpendicular bisector connecting the touch start point and the touch end point and the false detection assumption line that defines the edge of the touch panel is obtained, and the intersection is designated as a false detection candidate first area. Two steps,
Among the plurality of false detection candidate first areas determined in the second step, the one having a distance between two adjacent false detection candidate first areas that are adjacent to each other is equal to or less than a first threshold, and the selection A third step in which the two erroneous detection candidate first areas are set as the false detection candidate second area;
When the number of the plurality of false detection candidate second areas determined in the third step is equal to or greater than a third threshold, the erroneous detection assumption area is determined using the plurality of false detection candidate second areas. With four steps,
In the touch operation after the touch operation, a fifth step of determining whether the position of the touch operation is a distance within a fourth threshold from the reference point of the erroneous detection assumption area;
When it is determined by the fifth step that the distance is within the fourth threshold from the reference point of the erroneous detection assumption area, a first determination is made as to whether or not the size of the touch action is larger than the fifth threshold. Six steps and
And a seventh step of processing the touch motion as invalid when it is determined in the sixth step that the size of the touch motion is larger than the fifth threshold.   The control program for functioning a computer as each part of the portable terminal device of any one of Claim 1 to 7.   A computer-readable recording medium on which the control program according to claim 9 is recorded.

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