JP2015087933A - Information processing device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing device and others which can accurately determine erroneous contact on a touch panel.SOLUTION: When a first touch operation or a second touch operation detected by a touch panel (11) is a touch operation detected in a predetermined area, a depression determination unit (323) calculates a depression difference between the touch operations. When the depression difference is equal to or more than a predetermined value, a notification unit (324) deactivates the touch operation detected in the predetermined area.

Description

  The present invention relates to an information processing apparatus and a program, and more particularly to an information processing apparatus that accepts a touch operation on a screen.

  In recent years, an information processing apparatus that includes a touch panel on a screen and receives a touch operation on the screen has been disclosed. In such an information processing apparatus, there is a case where the user erroneously contacts (erroneous contact) with the touch panel even though the user does not intend to operate the information processing apparatus.

  For example, when the user holds the information processing apparatus with one hand and further operates the information processing apparatus using the thumb of the hand, the base of the thumb that operates the information processing apparatus is Incorrect contact with the part. The conventional information processing apparatus has a problem that such erroneous contact is detected as a touch operation, and processing associated with the touch operation is executed.

  Therefore, the mobile phone device described in Patent Document 1 is a case where contact with the second area is detected as a touch operation while detecting contact with the first area on the touch panel. When one of the two regions is included in the peripheral portion of the touch panel, only the process associated with the touch operation on the region not included in the peripheral portion of the touch panel is enabled. In other words, in the mobile phone device, the process associated with the touch operation at the peripheral portion of the touch panel is not executed.

JP 2012-93932 A (published May 17, 2012)

  However, the contact with the area included in the peripheral portion of the touch panel is not necessarily a false contact. For example, the user may simultaneously touch two areas on the touch panel in order to perform a pinch operation or the like. In this case, even if one contact is a contact with the peripheral part of a touch panel, the contact is not a false contact.

  In the above case, in the portable terminal device described in Patent Literature 1, it is determined that the contact included in the peripheral portion of the touch panel is a false contact, and becomes invalid. As a result, in the portable terminal device, the process associated with the pinch operation is not executed. Therefore, there is a problem that the user feels that the mobile terminal device has malfunctioned.

  The present invention has been made in view of the above, and an object thereof is to provide an information processing apparatus and the like that can accurately determine an erroneous contact with a touch panel.

  In order to solve the above-described problem, an information processing apparatus according to one embodiment of the present invention is an information processing apparatus including a touch panel, in which a first touch operation is detected and the first touch operation is further performed. Position determination means for determining whether one of the first touch operation and the second touch operation is a touch operation within a predetermined area when the second touch operation is detected before the touch operation is released. When the position determination unit determines that one of the first touch operation and the second touch operation is a touch operation within the predetermined area, the first touch operation and the second touch operation are performed. A pressure difference calculating means for calculating a pressure difference corresponding value that is a value corresponding to a pressure difference between the pressure difference and the pressure difference corresponding value calculated by the pressure difference calculating means is greater than or equal to a predetermined value. Within an area It comprises a disabling means for disabling the switch operating, the.

  According to one aspect of the present invention, there is an effect that an erroneous contact with the touch panel can be accurately determined.

1 is a block diagram illustrating a configuration of a mobile terminal according to a first embodiment. It is an external view of the portable terminal shown in FIG. 1, and is a figure which shows a mode that this portable terminal is receiving operation by a user. It is a figure which shows the time-sequential relationship of the touchdown time of each of the 1st touch detected by the detection part of the portable terminal shown in FIG. 1, and a 2nd touch, and a touch-up time. It is a figure which shows the time change of the press of the 1st touch detected by the detection part of the portable terminal shown in FIG. (A)-(d) is another figure which shows the time change of the press of the 1st touch respectively detected by the detection part of the portable terminal shown in FIG. It is the schematic which shows the display part of the portable terminal shown in FIG. It is a parameter table which shows the conditions used when the notification part of the portable terminal shown in FIG. 1 determines an erroneous touch. It is a flowchart which shows the flow of the process which the control part of the portable terminal shown in FIG. 1 performs. It is a flowchart which shows the flow of the erroneous touch determination process which the erroneous touch determination process part of the portable terminal shown in FIG. 1 performs.

Embodiment 1
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.

(Configuration of mobile terminal 1)
First, the configuration of the mobile terminal 1 (information processing apparatus) according to the present embodiment will be described. The mobile terminal 1 is an information processing device that is carried and used by a user, and is assumed to be operated while being held by a hand or the like. The mobile terminal 1 is configured to accept an operation performed by a user touching the screen with a finger or the like. The mobile terminal 1 may be, for example, a smartphone, a tablet terminal, a PDA (Personal Digital Assistant), or a digital camera.

  FIG. 1 is a block diagram illustrating a configuration of the mobile terminal 1. As shown in the figure, the mobile terminal 1 includes a display unit 10, a direction sensor 20, and a control unit 30.

  The display unit 10 displays a moving image or text on the screen. A touch panel 11 is disposed on the screen of the display unit 10. The touch panel 11 detects that a contact object such as a user's finger has touched the touch panel 11. Moreover, the press applied to the touch panel 11 from the contact object is detected. Then, the detected position and pressure of the contact object are output to the detection unit 310 of the control unit 30 as detection data.

  The touch panel 11 may be a resistive film type touch panel, or may be a touch panel of another type, for example, a capacitive type touch panel. However, the resistive touch panel can detect the position and pressure of the contact object, but the capacitive touch panel cannot detect the pressure of the contact object. Therefore, when the touch panel 11 is a capacitive touch panel, the detection unit 310 acquires the area of the region where the capacitance has changed due to contact with the contact object on the touch panel 11. Then, based on the acquired area, a value corresponding to the pressure applied to the touch panel 11 (press corresponding value) is calculated.

  Here, FIG. 2 shows an external view of the portable terminal 1 that is being operated by the user. In the figure, the user operates the portable terminal 1 by holding the portable terminal 1 with one hand and bringing the tip of the thumb of the hand into contact with the touch panel 11.

  At this time, there are two types of contact detected by the touch panel 11. The first type is intentional contact (intentional contact) performed by the user to operate the mobile terminal 1. An example of intentional contact by the user with the touch panel 11 is contact of the tip of the thumb in FIG. In the figure, the user makes the tip of the thumb contact the region Gx in order to operate the portable terminal 1.

  The second type of contact is a contact not intended by the user, in other words, an erroneous contact. An example of an erroneous contact with the touch panel 11 by the user is a contact at the base of the thumb in FIG. In the figure, the base of the thumb mistakenly contacts the region Gy.

  In FIG. 1, the direction sensor 20 detects the direction of the mobile terminal 1. More specifically, the direction sensor 20 detects the direction of gravity acting on the mobile terminal 1 and detects the direction in which gravity works as a direction from top to bottom.

  The control unit 30 controls the operation of each unit (including the direction sensor 20) of the mobile terminal 1 in an integrated manner. The control unit 30 includes a detection unit 310, an erroneous touch determination processing unit 320, and a touch information processing unit 330. Below, the detail of each part of the control part 30 is demonstrated in order.

(1. Detection unit 310)
The detection unit 310 detects the contact of the contact object first detected by the touch panel 11 as an operation of the first touch T1 (first touch operation) on the mobile terminal 1. Further, the position and press of the first touch T1 are detected.

  As described above, there are two types of contact of the contact object detected by the touch panel 11. Correspondingly, there are two types of touches detected by the detection unit 310. Hereinafter, of the touches detected by the detection unit 310, a touch corresponding to the intended touch is referred to as an intended touch. A touch corresponding to an erroneous contact is referred to as an erroneous touch.

  The detection unit 310 detects the first touch T1 every predetermined time from the detection of the first touch T1 until the detection of the next second touch T2 operation (second touch operation). The position and the pressure are detected, and the position and the pressure are held as detection data. When the detection unit 310 detects the second touch T2, the detection unit 310 detects the position and the pressure of each of the first touch T1 and the second touch T2 as detection data, and outputs them to the erroneous touch determination processing unit 320. Output.

  Hereinafter, the time point when the touch is detected by the detection unit 310 is referred to as a touch-down time point. In addition, a point in time when it is detected that the touch is finished is referred to as a touch-up point. FIG. 3 shows, as an example, a time-series relationship between the touch-down time point and the touch-up time point of each of the first touch T1 and the second touch T2. In FIG. 3, the touchdown time t1 of the first touch T1, the touchdown time t2 of the second touch T2, the touchup time t3 of the second touch T2, and the touchup of the first touch T1. Time points t4 are arranged in this order in time series.

  In general, the pressure applied to the touch panel 11 from the contact object changes with time. Therefore, the pressing of the first touch detected by the detection unit 310 also changes between time t1 and time t2.

  FIG. 4 shows, as an example, a temporal change in pressing of the first touch detected by the detection unit 310. Time t1 and time t2 in the figure correspond to time t1 and time t2 in FIG. 3, respectively. In the example illustrated in FIG. 4, the pressing of the first touch T <b> 1 monotonously increases from the pressing p <b> 11 to the pressing p <b> 12 between the time t <b> 1 and the time t <b> 2. However, the pressing of the first touch T1 does not necessarily increase monotonously with time.

  (A)-(d) of FIG. 5 is another example which shows the time change of the press of the 1st touch T1, respectively. Note that all the graphs shown in FIGS. 5A to 5D schematically show changes in touch pressure. The change in touch pressure detected by the detection unit 310 is actually not as smooth as the graphs shown in FIGS.

  In many cases, as shown in FIGS. 5A and 5B, the pressing of the first touch T1 increases for the first certain period and then decreases. However, as shown in (c) and (d) of FIG. 5, the initial certain period may decrease and increase thereafter. Note that the pressure that monotonously increases with time, such as the pressure illustrated in FIG. 4, can be seen, for example, in the area surrounded by the broken line kx in the graph illustrated in FIG.

(2. False touch determination unit 320)
The erroneous touch determination processing unit 320 acquires detection data of the first touch T1 and the second touch T2 from the detection unit 310. Then, an erroneous touch determination process is performed to determine whether the first touch T1 or the second touch T2 is an erroneous touch.

  Thereafter, the erroneous touch determination processing unit 320 displays the result of the erroneous touch determination process, that is, the result indicating whether one of the first touch T1 and the second touch T2 is an erroneous touch. To the unit 330. Details of the erroneous touch determination processing unit 320 and the erroneous touch determination processing will be described later.

(3. Touch information processing unit 330)
The touch information processing unit 330 acquires the result of the erroneous touch determination process from the erroneous touch determination processing unit 320. And the process matched with the touch (at least one of the 1st touch and the 2nd touch) determined by the incorrect touch determination process part 320 not to be an erroneous touch is performed. As an example of the process associated with the touch, “application activation at the time of icon tap” and “page transition at the time of link tap” can be cited. Note that the touch information processing unit 330 may display an effect on the display unit 10 for notifying that the process associated with the touch determined to be an erroneous touch has not been executed. Specifically, the touch information processing unit 330 is an application mounted on the mobile terminal 1.

(Details of erroneous touch determination processing unit 320)
Here, the details of the above-described erroneous touch determination processing unit 320 will be described. As illustrated in FIG. 1, the erroneous touch determination processing unit 320 includes a position determination unit 321 (position determination unit), a distance determination unit 322 (distance determination unit), a press determination unit 323 (press difference calculation unit), and a notification unit 324. (Invalidation means) is included. Below, the detail of each part of the erroneous touch determination process part 320 is demonstrated in order.

(1. Position determination unit 321)
When the first touch T1 is detected by the detection unit 310 and the second touch T2 is detected while the first touch T1 continues, the position determination unit 321 It is determined whether or not the position of the first touch T1 or the second touch T2 is included in a predetermined erroneous touch candidate area. Then, the determination result is output to the distance determination unit 322.

  Here, the erroneous touch candidate area is an area on the touch panel 11 where an erroneous touch may be detected. Specifically, the erroneous touch candidate area is an area on the touch panel 11 in which the base of the thumb may accidentally contact while the user is operating the mobile terminal 1 using the thumb. The erroneous touch candidate area may be an area including the peripheral edge portion of the touch panel 11, for example.

  An example of the erroneous touch candidate area will be described with reference to FIG. FIG. 6 is a schematic diagram showing the display unit 10 of the mobile terminal 1. In the figure, the erroneous touch candidate region V is a region that satisfies the condition that the distance from the left end or the right end of the touch panel 11 is equal to or less than the threshold A and the distance from the lower end of the touch panel 11 is equal to or less than the threshold B. However, the above left and right directions are directions seen from the user facing the screen of the mobile terminal 1.

(2. Distance determination unit 322)
The distance determination unit 322 determines whether or not the distance between the position of the first touch T1 and the position of the second touch T2 is greater than or equal to the threshold value C. Then, the determination result is output to the press determination unit 323. Specifically, the threshold value C is determined based on a general length from the tip of the thumb to the base.

  In FIG. 6, two points indicated by two cross marks correspond to the position of the first touch T1 and the position of the second touch T2. The length of the line segment connecting the two cross marks corresponds to the distance c between the position of the first touch T1 and the position of the second touch T2.

  In the figure, the position of the first touch T1 and the position of the second touch T2 are indicated by dots. However, the first touch T1 and the second touch T2 are usually detected in an area on the touch panel 11. When the first touch T1 and the second touch T2 are detected in the area on the touch panel 11, the position of the first touch T1 and the position of the second touch T2 correspond to the corresponding touch panels. 11 is determined to be one point (for example, the center of gravity) in the region above.

(3. Press determination part 323)
The press determination unit 323 determines whether or not the difference between the press of the first touch T1 and the press of the second touch T2 is equal to or greater than the threshold value D. Then, the result of the determination is output to the notification unit 324. Alternatively, the press determination unit 323 determines whether the ratio of the press of the first touch T1 and the press of the second touch T2 is greater than or equal to the first threshold or less than or equal to the second threshold. May be.

  In addition, the pressure determination unit 323 determines whether or not the difference (the pressure difference corresponding value) between the pressure corresponding value of the first touch T1 and the pressure corresponding value of the second touch T2 is greater than or equal to the threshold value D. It may be determined.

  Here, the pressing of the second touch T2 used for the determination is a pressing at the touch-down time t2 of the touch T2. On the other hand, the pressing of the first touch T1 used in the above determination may be a pressing at any time from the time t1 to the time t2. However, the pressure on the first touch T1 changes between the touchdown time t1 of the first touch T1 and the touchdown time t2 of the second touch T2 (see FIG. 4). Therefore, the difference between the press of the first touch T1 and the press of the second touch T2 may be affected by the time change of the press of the first touch.

  Therefore, in order to eliminate the possibility that the result of the above determination is affected by the time change of the press of the first touch T1, the press determination unit 323 performs the determination of the first touch T1 in the above determination. It is desirable to use the pressure p11 of the touch T1 at the touchdown time t1.

(4. Notification unit 324)
The notification unit 324 notifies the touch information processing unit 330 of a touch event based on the first touch T1 and the second touch T2 in any of the following (i) to (iii).

  (i) When the position determination unit 321 determines that the positions of both the first touch T1 and the second touch T2 are not included in the predetermined erroneous touch candidate area V.

  (ii) When the distance determination unit 322 determines that the distance c between the position of the first touch T1 and the position of the second touch T2 is not greater than or equal to the threshold C.

  (iii) The case where the absolute value of the difference Δp between the press of the first touch T1 and the press of the second touch T2 is determined not to be equal to or greater than the threshold D by the press determination unit 323.

  On the other hand, when all of the following (Condition 1) to (Condition 4) are satisfied, the notification unit 324 invalidates the touch with the smaller press of the first touch T1 and the second touch T2. To do. Then, the notification unit 324 notifies the touch information processing unit 330 of a touch event based on the touch with the greater pressure, but does not notify the touch information processing unit 330 of the touch event based on the invalidated touch.

  In the following (Condition 1) to (Condition 4), the vertical direction of the touch panel 11 is a direction detected by the direction sensor 20. Further, the left and right directions of the touch panel 11 are directions viewed from the user facing the screen.

  (Condition 1) The distance a from the left end or the right end of the touch panel 11 to the position of the first touch T1 or the position of the second touch T2 is equal to or less than the threshold A.

  (Condition 2) The distance b from the lower end of the touch panel 11 to the touch position satisfying (Condition 1) is equal to or less than the threshold value B.

  (Condition 3) The distance c between the position of the first touch T1 and the position of the second touch T2 is greater than or equal to the threshold value C.

  (Condition 4) The absolute value of the difference Δp between the press of the first touch T1 and the press of the second touch T2 is greater than or equal to the threshold value D.

  FIG. 7 shows (condition 1) to (condition 4) as a parameter table. Instead of (Condition 4), the following (Condition 4 ′) may be adopted.

  (Condition 4 ′) The ratio p2 / p1 between the pressing of the first touch T1 and the pressing of the second touch T2 is not less than the threshold E or not more than the threshold F.

  The above (Condition 1) to (Condition 4) and (Condition 4 ′) are derived from the results of investigation by the inventors. The inventor holds the portable terminal with one hand (operating hand) and performs the operation by bringing the tip of the thumb of the operating hand into contact with the touch panel. The contact was investigated. As a result of this investigation, the following (feature F1) to (feature F2) were found.

  Furthermore, the inventor investigated the relationship between an intention touch and a false touch. As a result of the above investigation, it was found that there are the following (feature F3) to (feature F4).

  (Feature F1) When the user holds the mobile terminal with one hand (operating hand), the user generally holds the side end of the mobile terminal with the operating hand. Therefore, the base of the thumb of the operator touches the position near the left end or the right end of the touch panel.

  (Feature F2) When the user is holding the mobile terminal with the screen (touch panel) facing him / her, the position on the touch panel where the base of the thumb of the operator touches is usually the tip of the thumb It is located below the position on the touch panel that touches. Therefore, the base of the thumb does not contact the vicinity of the upper end of the touch panel.

  (Feature F3) The user may contact the touch panel with the thumb extended, or may contact the touch panel with the thumb standing. In any of the above cases, the distance between the intended touch position and the erroneous touch position is defined by the actual physical size of the thumb.

  (Feature F4) An erroneous touch is detected when the user accidentally touches the touch panel. For this reason, the erroneous touch is relatively small. On the other hand, the intention touch is detected when the user touches the touch panel with the intention of performing a touch operation. Therefore, the pressure of the intention touch is relatively large.

  Here, in the feature F3, the “actual physical size of the thumb” refers to, for example, (a) the length from the tip of the thumb to the base, (b) the thickness (width) of the thumb, and (c) the height of the thumb. (The length of the thumb measured in the direction from the belly of the thumb toward the nail), or (d) the indirect position of the thumb. Alternatively, it may be a plurality of (a) to (d).

  In addition to the above investigation, the inventor investigated whether an erroneous touch operation or an intention touch operation was detected first. As a result, it has been found that either touch operation may be detected first.

(Operation of control unit 30)
Here, the operation of the control unit 30 when a touch operation is detected will be described with reference to FIG. FIG. 8 is a flowchart showing a flow of processing executed by the control unit 30 when a touch is detected.

  First, at a certain time point t1, the detection unit 310 detects the first touch T1 (S100). Thereafter, the detection unit 310 presses and positions the first touch T1 every predetermined time until the touchdown time t2 of the second touch T2 or the touchup time t3 of the first touch T1. Is detected and the detected data is held (S200).

  Next, the erroneous touch determination processing unit 320 detects the second touch T2 by the detection unit 310 while the first touch T1 continues (that is, before the touch-up time t3). It is determined whether or not (S300). If the second touch T2 is not detected while the first touch T1 continues (No in S300), in other words, one before the second touch T2 is detected. When the touch-up of the eye touch T1 is detected, the notification unit 324 of the erroneous touch determination processing unit 320 sends a touch event based on the first touch T1 to the touch information processing unit 330 (specifically, application). (S400).

  Thereafter, the touch information processing unit 330 executes a process associated with the first touch T1. Then, the operation of the control unit 30 returns to step S100 in which the detection unit 310 newly detects the first touch T1.

  On the other hand, when the second touch T2 is detected at a certain time point t2 while the first touch T1 is continuing (Yes in S300), the erroneous touch determination processing unit 320 performs the first touch. An erroneous touch determination process is performed to determine whether T1 or the second touch T2 is an erroneous touch (S500).

  Thereafter, the erroneous touch determination processing unit 320 notifies the touch information processing unit 330 of a touch event based on a touch that is determined not to be an erroneous touch in the erroneous touch determination processing.

  The touch information processing unit 330 that has received the notification of the touch event from the erroneous touch determination processing unit 320 executes processing associated with the touch determined not to be an erroneous touch. Then, the operation of the control unit 30 returns to step S100 in which the detection unit 310 newly detects the first touch T1.

  Here, the touchdown time t2 of the second touch T2 is later than the touchdown time t1 of the first touch T1. Therefore, even if it is determined in step S500 that the first touch T1 is an erroneous touch, the touch event based on the first touch T1 is determined between time t1 and time t2. The touch event to be performed is notified to the touch information processing unit 330.

  On the other hand, touch events determined after time t2 (for example, touch-up time t3 of the first touch T1) among the touch events based on the first touch T1 are not notified to the touch information processing unit 330. Thereby, it is possible to prevent execution of processing such as “application activation at the time of icon tap” or “page transition at the time of link tap” that is determined whether or not execution is necessary at time t3.

(Wrong touch determination process)
Next, the flow of erroneous touch determination processing executed by the erroneous touch determination processing unit 320 will be described with reference to FIG. FIG. 9 is a flowchart showing the flow of erroneous touch determination processing. In the following description, it is assumed that the position of each touch is constant regardless of time.

  In the erroneous touch determination process, first, the position determination unit 321 determines whether or not the position of the first touch T1 is included in the erroneous touch candidate area V (S600).

  In step S600, when it is determined that the position of the first touch T1 is included in the erroneous touch candidate region V (Yes in S600), the erroneous touch determination processing unit 320 receives the first touch from the detection unit 310. The position coordinate (x1, y1) and the pressure p11 of the first touch T1 at the touchdown time point t1 are acquired, and the position coordinate (x2, y2) of the second touch T2 at the second touchdown time point t2 is acquired. ) And the pressure p22 are acquired (S801).

  Next, the distance determination unit 322 determines that the distance c between the position coordinate (x1, y1) of the first touch T1 and the position coordinate (x2, y2) of the second touch T2 is greater than or equal to the threshold C. It is determined whether or not there is. Further, the press determination unit 323 determines whether or not the difference Δp between the press p22 of the second touch T2 and the press p11 of the first touch T1 is equal to or greater than the threshold D (S802).

  The distance determination unit 322 determines that the distance c between the position coordinate (x1, y1) of the first touch T1 and the position coordinate (x2, y2) of the second touch T2 is not greater than or equal to the threshold C. Or when the difference Δp between the pressure p22 of the second touch T2 and the pressure p11 of the first touch T1 is not greater than or equal to the threshold value D (No in S802). The erroneous touch determination processing unit 320 determines whether or not the position of the second touch T2 is included in the erroneous touch candidate area V (S700). Processing after this determination will be described later.

  On the other hand, the distance c between the position coordinate (x1, y1) of the first touch T1 and the position coordinate (x2, y2) of the second touch T2 is greater than or equal to the threshold C by the distance determination unit 322. And the pressure determination unit 323 determines that the difference Δp between the pressure p22 of the second touch T2 and the pressure p11 of the first touch T1 is greater than or equal to the threshold value D (in S802). Yes), the notification unit 324 determines that the first touch T1 is an erroneous touch, and notifies the touch information processing unit 330 that the touch T1 is cancelled. Thereafter, it is determined not to notify the touch information processing unit 330 of the first touch T1 (S804).

  Further, the notification unit 324 notifies the touch information processing unit 330 of the touch event of the second touch T2 (S805). Then, the erroneous touch determination process ends.

  On the other hand, if it is determined in step S600 that the position of the first touch T1 is not included in the erroneous touch candidate area V (No in S600), the erroneous touch determination processing unit 320 performs the second touch T2. Is determined to be included in the erroneous touch candidate area V (S700).

  When it is determined that the position of the second touch T2 is not included in the erroneous touch candidate area V (No in S700), the notification unit 324 is based on the first touch T1 and the second touch T2. The touch event is notified to the touch information processing unit 330 (application) (S803). Then, the erroneous touch determination process ends.

  On the other hand, when it is determined that the position of the second touch T2 is included in the erroneous touch candidate region V (Yes in S700), the erroneous touch determination processing unit 320 receives the second touchdown from the detection unit 310. The position coordinate (x1, y1) and the pressure p12 of the first touch T1 at the time t2 and the position coordinate (x2, y2) and the pressure p22 of the second touch T2 at the touchdown time t2 are acquired (S901). .

  Next, the distance determination unit 322 determines that the distance c between the position coordinate (x1, y1) of the first touch T1 and the position coordinate (x2, y2) of the second touch T2 is greater than or equal to the threshold C. It is determined whether or not there is. Further, the press determination unit 323 determines whether or not the difference Δp between the press p12 of the first touch T1 and the press p22 of the second touch T2 is equal to or greater than the threshold D (S902).

  The distance determination unit 322 determines that the distance c between the position coordinate (x1, y1) of the first touch T1 and the position coordinate (x2, y2) of the second touch T2 is not greater than or equal to the threshold C. Or when the difference Δp between the pressure p12 of the first touch T1 and the pressure p22 of the second touch T2 is not greater than or equal to the threshold value D (No in S902). The notification unit 324 notifies the touch information processing unit 330 of touch events based on the first touch T1 and the second touch T2 (S903). Then, the erroneous touch determination process ends.

  On the other hand, the distance c between the position coordinate (x1, y1) of the first touch T1 and the position coordinate (x2, y2) of the second touch T2 is greater than or equal to the threshold C by the distance determination unit 322. And the pressure determination unit 323 determines that the difference Δp between the pressure p12 of the first touch T1 and the pressure p22 of the second touch T2 is greater than or equal to the threshold D (in S802). Yes), the notification unit 324 determines that the second touch T2 is an erroneous touch, and thereafter determines not to notify the touch information processing unit 330 of the second touch T2 (S904).

  Furthermore, the notification unit 324 notifies the touch information processing unit 330 of a touch event based on the first touch T1 (S905). Then, the erroneous touch determination process ends.

  As described above, in the erroneous touch determination process, when one touch of the first touch T1 and the second touch T2 is located in the peripheral portion (erroneous touch candidate region V) of the touch panel 11, It is determined with high accuracy whether or not the touch is an erroneous touch. A touch event based on a touch determined to be an erroneous touch is not notified to the application (touch information processing unit 330). Thereby, when the base of the thumb makes an erroneous contact with the peripheral edge of the touch panel 11, it is possible to prevent the application from executing a process based on the erroneous contact.

  In step S802, the pressing of the first touch T1 used for the determination by the pressing determination unit 323 is not limited to the pressing p11 at the time point t1. For example, the press determination unit 323 may use the press p12 of the first touch T1 at the time point t2 instead of the press p11. However, as described above, when a press other than the press p11 is used, the determination result may be influenced by the time change of the press of the first touch T1.

  In step S902, the pressing of the first touch T1 used for the determination by the pressing determination unit 323 is not limited to the pressing p12 at the time point t2. That is, in step S902, the pressing determination unit 323 has a difference Δp between the pressing of the first touch T1 at a time other than the time t2 and the pressing p22 of the second touch T2 at the time t2 is greater than or equal to the threshold D. It may be determined whether or not.

  However, when the pressure of the first touch T1 monotonously increases from time t1 to time t2, the pressure determination unit 323 determines that the first touch T1 is pressed at time t2 and 2 at time t2. It is desirable to compare the pressure p22 of the first touch T2. This is because, in the above case, the difference between the pressing of the first touch T1 at the time t2 and the pressing p22 of the second touch T2 is the pressing of the first touch T1 at a time other than the time t2. It becomes larger than the difference from the pressure p22. For this reason, it is possible to accurately determine whether or not the second touch T2 is an erroneous touch by comparing using the former difference rather than performing the comparison based on the latter difference. is there.

(Comparison with conventional technology)
As described above, in the mobile terminal device described in Patent Document 1, it is determined whether or not to invalidate the touch based only on the touch position.

  On the other hand, as described above, the mobile terminal 1 of the present embodiment determines whether or not the touch is an erroneous touch using not only the position of the touch but also the press. Therefore, even if the touch at the two places on the touch panel 11 includes a touch at the peripheral edge (erroneous touch candidate area V) of the touch panel 11, if the pressure difference between the touches is not equal to or greater than the threshold value D. For example, it is determined that the touch within the peripheral edge is not an erroneous touch. Accordingly, it is possible to prevent the touch within the peripheral portion of the touch panel 11 from being invalidated by mistake. Therefore, the mobile terminal 1 can correctly accept a pinch operation by a user, for example. This is because, in the pinch operation, there is a low possibility that a large difference equal to or greater than the threshold value D exists between touches pressed at two locations.

[Embodiment 2]
In the first embodiment, in the determination in step S804 of the erroneous touch determination process, the press determination unit 323 uses the press p11 of the first touch T1 at the time point t1.

  By the way, from the viewpoint of accurately determining an erroneous touch, it is desirable that the pressure of the touch T1 used by the pressure determination unit 323 to determine whether or not the first touch T1 is an erroneous touch is as low as possible. . For this reason, depending on the change in pressure between time t1 and time t2, it is not always desirable for the pressure determination unit 323 to use the pressure p11.

  As described above, the pressing of the first touch T1 generally increases for the first certain period and then decreases (see FIGS. 5A and 5B). Alternatively, the initial period decreases and then increases (see (c) and (d) in FIG. 5). Therefore, the pressure p12 at the time point t2 may be smaller than the pressure p11 at the time point t1, or the pressure of the first touch T1 may be minimum at a certain time other than the time point t1. In these cases, it is desirable for the pressure determination unit 323 to use a pressure other than the pressure p11 at the time t1 for determination in step S804.

  Therefore, in the present embodiment, in step S804, the pressing determination unit 323 uses a calculated value calculated from the pressing of the first touch T1 between time t1 and time t2. Specifically, the pressing determination unit 323 may use the minimum value of pressing of the first touch T1 between the time point t1 and the time point t2. Or the press determination part 323 may use the average value of the press of the 1st touch T1 between the time t1 and the time t2.

  Similarly, in step S904 of the erroneous touch determination process, the pressure determination unit 323 determines that the pressure determination unit 323 is 1 between time t1 and time t2, instead of the first touch T1 pressure p12 at time t2. The minimum value of pressing of the first touch T1 may be used.

[Embodiment 3]
The control unit 30 (particularly each unit of the erroneous touch determination processing unit 320) of the mobile terminal 1 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or a CPU (Central Processing Unit) ) May be implemented by software.

  In the latter case, the mobile terminal 1 includes a CPU that executes instructions of a program that is software that implements each function, a ROM (Read Only Memory) in which the program and various data are recorded so as to be readable by a computer (or CPU), or A storage device (these are referred to as “recording media”), a RAM (Random Access Memory) that expands the program, and the like are provided. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it. As the recording medium, a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. The program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.

[Summary]
An information processing apparatus (portable terminal 1) according to an aspect 1 of the present invention is an information processing apparatus including a touch panel (11), and a first touch operation is detected on the touch panel, and the first touch is further performed. Whether or not one of the first touch operation and the second touch operation is a touch operation in a predetermined area (erroneous touch candidate area V) when the second touch operation is detected before the operation leaves When the position determination means (position determination unit 321) for determining the position and the position determination means determine that one of the first touch operation and the second touch operation is a touch operation within the predetermined area. , Calculated by a pressure difference calculation means (press determination unit 323) that calculates a pressure difference corresponding value that is a value corresponding to the pressure difference between the first touch operation and the second touch operation, and the pressure difference calculation means. Pressed above If the difference corresponding value is a predetermined value or more, the information processing apparatus characterized by comprising a an invalidation unit (notification unit 324) to disable the touch operation by the predetermined region.

  According to the above configuration, one of the first touch operation detected first and the second touch operation detected before the first touch operation leaves is a touch operation within a predetermined area. In some cases, a value corresponding to a pressure difference (a pressure difference corresponding value) that is a difference between the pressure of the first touch operation and the pressure of the second touch operation is calculated. When the calculated pressure difference corresponding value is equal to or greater than a predetermined value, the touch operation in the predetermined area is invalidated among the first touch operation and the second touch operation.

  Therefore, in the above configuration, as the predetermined area, an area where the base of the thumb of the hand may come into contact when the user is touching the tip of the thumb of the hand to the touch panel is selected. The difference between the pressure applied to the touch panel by the tip of the thumb and the pressure applied to the touch panel by the base of the thumb is selected as the predetermined value. When the selection is performed as described above, the erroneous touch operation detected by the information processing apparatus is invalidated by erroneously touching the base of the thumb with the touch panel. As a result, the touch vent based on the erroneous touch operation is not executed. Thereby, in the information processing apparatus, it is possible to prevent an operation unintended by the user from being executed.

  The pressing difference corresponding value may be a difference between the pressing of the first touch operation and the pressing of the second touch operation, or the pressing of the first touch operation and the pressing of the second touch operation. It may be a ratio. In addition, the contact area of the contact object that contacts the touch panel may be used instead of pressing. In this case, a value corresponding to the difference between the pressure of the first touch operation and the pressure of the second touch operation is calculated from the contact area of the first touch operation and the contact area of the second touch operation. .

  Note that the first touch operation may be an erroneous touch operation, and the second touch operation may be an erroneous touch operation. When the first touch operation is an erroneous touch operation, the pressure of the first touch operation is lower than the pressure of the second touch operation. In addition, when the second touch operation is an erroneous touch operation, the pressure of the second touch operation is lower than the pressure of the first touch operation.

  Whether the distance between the first touch operation and the second touch operation on the touch panel is equal to or greater than a predetermined distance in the information processing apparatus (mobile terminal 1) according to aspect 2 of the present invention. Distance determining means (distance determining unit 322), and the invalidating means (notifying unit 324) is configured such that the pressure difference corresponding value calculated by the pressure difference calculating means (press determining unit 323) is a predetermined value. When the distance determination means determines that the distance between the first touch operation and the second touch operation on the touch panel is greater than or equal to a predetermined distance, the predetermined area (incorrect touch) The touch operation in the candidate area V) may be invalidated.

  According to the above configuration, (i) the difference between the press of the first touch operation and the press of the second touch operation is a predetermined value or more, and (ii) the first touch operation and the second touch When the condition that the distance to the operation is equal to or greater than the predetermined distance is satisfied, the touch operation in the predetermined area is invalidated.

  That is, in the above configuration, when the condition (ii) is satisfied in addition to the condition (i) in the configuration of the aspect 1, the touch operation in the predetermined area is invalidated.

  Here, in the above configuration, a distance determined based on the actual physical size of the thumb of the operator can be selected as the predetermined distance. By making a selection in this way, a touch operation (first touch operation or second touch operation) within a predetermined area is a touch operation based on contact with the touch panel by the base of the thumb of the hand, that is, an erroneous touch operation. It can be accurately determined whether or not.

  In the information processing apparatus (mobile terminal 1) according to aspect 3 of the present invention, in the aspect 1 or 2, the pressure difference calculation unit (press determination unit 323) is configured to perform the second operation from the time point when the first touch operation is detected. Between the calculated value calculated based on the pressing of the first touch operation until the time point when the touch operation is detected and the pressing of the second touch operation when the second touch operation is detected The pressure difference corresponding value corresponding to the pressure difference may be calculated.

  According to the above configuration, the pressure difference corresponding value is based on the pressure of the first touch operation from the time point t1 when the first touch operation is detected to the time point t2 when the second touch operation is detected. It is a value corresponding to the pressure difference between the calculated value and the pressure of the second touch operation at the time when the second touch operation is detected.

  Therefore, the pressure difference corresponding value can be easily calculated by using the first touch operation pressing from the time t1 to the time t2 and the second touch operation pressing at the time t2.

  Here, the calculated value may be, for example, a press of the first touch operation at a certain time point from the time point when the first touch operation is detected to the time point when the second touch operation is detected. Alternatively, it may be the minimum value of the pressure of the first touch operation between the time when the first touch operation is detected and the time when the second touch operation is detected. In addition, it may be an average value of pressing of the first touch operation from the time when the first touch operation is detected to the time when the second touch operation is detected.

  In the information processing apparatus (mobile terminal 1) according to aspect 4 of the present invention, in any one of aspects 1 to 3, the predetermined area (erroneous touch candidate area V) may be an area including a peripheral portion of the touch panel. .

  According to said structure, a predetermined area | region contains the peripheral part of a touch panel.

  When the user holds the information processing apparatus with one hand, the user generally holds the left end or the right end of the information processing apparatus with his / her hand. For this reason, the base of the thumb of the hand holding the information processing apparatus is likely to come into contact with the peripheral edge of the touch panel. Therefore, when the first touch operation or the second touch operation is detected at the peripheral portion of the panel, the touch operation may be detected by erroneous contact of the base of the thumb with the touch panel. Is expensive.

  In the above configuration, since the peripheral portion of the touch panel, which is a region where the base of the thumb of the hand is likely to contact, is included in the predetermined region, an erroneous touch operation can be accurately detected.

  The information processing apparatus (mobile terminal 1) according to aspect 5 of the present invention is the information processing apparatus (portable terminal 1) according to aspect 3, in which the pressure difference calculation means (the pressure determination unit 323) is And the pressure difference corresponding value corresponding to the pressure difference between the second touch operation and the second touch operation at the time when the second touch operation is detected may be calculated.

  According to the above configuration, the first touch operation is pressed when the first touch operation is detected (time t1), and the second touch is detected when the second touch operation is detected (time t2). The touch operation (first touch operation or second touch operation) in the predetermined area is invalidated when the pressure difference corresponding value corresponding to the pressure difference between the operation and the pressure is greater than or equal to a predetermined value. The

  Here, the pressure of a certain touch operation, that is, the pressure applied to the touch panel by a contact object on the touch panel changes with time. Specifically, the press of the touch operation rises initially and falls later.

  Therefore, for example, the pressure of the first touch operation at the time point t1 and the pressure of the first touch operation at the time point t2 may be different from each other. Therefore, in the configuration for calculating the difference between the pressure of the first touch operation at time t2 and the pressure of the second touch operation at time t2, the pressure difference corresponding value is the first between time t1 and time t2. It is influenced by the change of the pressure of the touch operation. Even in a configuration other than this configuration, in a configuration that calculates the difference between the press of the first touch operation at a time other than the time t1 and the press of the second touch operation at the time t2, However, it is influenced by the time change of pressing of the first touch operation. Then, as a result of the pressure difference corresponding value being affected by the time change of the first touch operation, whether or not the first touch operation or the second touch operation is an erroneous touch operation is accurately determined from the pressure difference corresponding value. It becomes difficult to make a judgment.

  On the other hand, in the above configuration, the pressure difference corresponding value corresponding to the difference between the pressing of the first touch operation at the time t1 and the pressing of the second touch operation at the time t2 is calculated. Therefore, compared with the configuration for calculating the pressure difference corresponding value corresponding to the pressure difference between the first touch operation at the time other than the time t1 and the second touch operation at the time t2, the pressure difference corresponding value is It can suppress that it receives from the time change of the press of 1st touch operation. Thereby, based on the pressure difference corresponding value, it can be accurately determined whether or not the first touch operation or the second touch operation is an erroneous touch operation.

  The information processing apparatus (mobile terminal 1) according to aspect 6 of the present invention further includes a direction sensor (20) that detects the direction of the information processing apparatus in aspect 4, and the information processing apparatus detected by the direction sensor. When the orientation of the touch panel (11) is defined based on the orientation of the touch panel (11), the predetermined area is (i) a distance from the left end or the right end of the touch panel is equal to or less than a first threshold, and (ii) the above It may be a region that satisfies the condition that the distance from the lower end of the touch panel is equal to or less than the second threshold.

  According to the above configuration, the predetermined area has (i) a distance from the left end or right end of the touch panel equal to or less than the first threshold value, and (ii) a distance from the lower end of the touch panel equal to or less than the second threshold value. It is an area that satisfies the condition.

  As described above, when the user holds the information processing apparatus with one hand, the user generally holds the left end or the right end of the information processing apparatus with the hand. For this reason, the base of the thumb of the hand holding the information processing apparatus is likely to come into contact with a position near the left end or the right end of the touch panel. Further, when an operation is performed by touching the touch panel with the tip of the thumb, the base of the thumb is located below the tip of the thumb. For this reason, the base of the thumb is unlikely to contact the vicinity of the upper end of the touch panel. Note that left and right and up and down here are determined based on the orientation of the information processing apparatus detected by the direction sensor.

  In other words, if the first touch operation or the second touch operation is detected in a region far from the left or right end of the panel or in a region near the top end of the touch panel, the touch operation is erroneously performed at the base of the thumb. There is a high possibility that it is not detected by touching the touch panel.

  In the above configuration, by appropriately setting the first threshold value and the second threshold value so that the area where the base of the thumb of the hand may come into contact is covered by the predetermined area, The possibility that the touch operation is an erroneous touch operation can be improved. Thereby, an erroneous touch operation can be accurately detected.

  The information processing apparatus (portable terminal 1) according to each aspect of the present invention may be realized by a computer. In this case, the information processing apparatus is operated by causing the computer to operate as each unit included in the information processing apparatus. A control program for an information processing apparatus realized by a computer and a computer-readable recording medium on which the control program is recorded also fall within the scope of the present invention.

  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. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

  The present invention can be used for information processing devices such as smartphones, tablet terminals, PDAs, and digital cameras.

1 Mobile terminal (information processing device)
321 Position determination unit (position determination means)
322 Distance determination unit (distance determination means)
323 Press determination unit (press difference calculation means)
324 Notification unit (invalidation means)

Claims (5)

An information processing apparatus equipped with a touch panel,
In the touch panel, when the first touch operation is detected and the second touch operation is detected before the first touch operation leaves, one of the first touch operation and the second touch operation is detected. Position determining means for determining whether or not the touch operation is within a predetermined area;
When the position determination means determines that one of the first touch operation and the second touch operation is a touch operation within the predetermined area, the first touch operation and the second touch operation are performed. A pressure difference calculating means for calculating a pressure difference corresponding value that is a value corresponding to a pressure difference between;
And an invalidating means for invalidating the touch operation in the predetermined area when the pressure difference corresponding value calculated by the pressure difference calculating means is a predetermined value or more. apparatus. Distance determining means for determining whether or not the distance between the first touch operation and the second touch operation on the touch panel is a predetermined distance or more;
The invalidation means includes a first touch operation on the touch panel and a second touch operation on the touch panel by the distance determination means when the pressure difference corresponding value calculated by the pressure difference calculation means is a predetermined value or more. The information processing apparatus according to claim 1, wherein the touch operation in the predetermined area is invalidated when it is determined that the distance between the predetermined distances is equal to or greater than the predetermined distance.   The pressure difference calculating means includes a calculated value calculated based on a pressure of the first touch operation between the time when the first touch operation is detected and the time when the second touch operation is detected; 3. The information processing apparatus according to claim 1, wherein the pressure difference corresponding value corresponding to the pressure difference between the second touch operation and the second touch operation when the second touch operation is detected is calculated. .   The information processing apparatus according to claim 1, wherein the predetermined area is an area including a peripheral portion of the touch panel.   A program for causing a computer to function as the information processing apparatus according to claim 1, wherein the program causes the computer to function as each of the means.

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