JP2013171465A - Information processing apparatus, method and program of controlling information processing apparatus, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To give a user a comfortable operational feeling.SOLUTION: A noise removal area 4 is set so that a this time primary coordinate 3a is included inclinedly in a movement direction 5 from a last time primary coordinate 3a to the this time primary coordinate 3a, and a position obtained by bringing the this time primary coordinate 3a close to a last time secondary coordinate 3c is accepted as a this time secondary coordinate 3b.

Description

  The present invention relates to an information processing apparatus that includes an input surface capable of detecting a position designated by a user operation and is capable of inputting information based on the designated position.

  In an electronic device having a display screen with a touch panel, a user can input information by a touch operation using an indicator such as a finger or a stylus. The touch interface capable of intuitive operation is widely spread mainly in information terminals such as so-called smartphones and some home game machines.

  Based on FIG. 8, the problem of the noise error of the touch interface will be described. FIG. 8 is a time series graph showing the true coordinates corresponding to the position designated by the user and the coordinates detected by the touch panel. The horizontal axis of the time series graph represents time, and the vertical axis represents coordinates at each time.

  Note that two-dimensional coordinates are usually obtained from the touch panel, but for the sake of simplicity, FIG. 8 shows one-dimensional coordinates representing only the x component or y component of the two-dimensional coordinates. The “true coordinates” refers to the coordinates of the point with the strongest finger press (ideal coordinates to be detected by the touch panel), and the “detected coordinates” are actually detected by the touch panel. Coordinates (the same applies to the graphs shown below).

  As shown in FIG. 8, there is a divergence between the true coordinates corresponding to the position designated by the user by the touch operation and the coordinates obtained from the touch panel. This divergence originates from a noise error depending on the hardware characteristics of the touch panel.

  Based on FIG. 9, a problem that occurs when the noise error is included in the coordinates obtained from the touch panel will be described. FIG. 9 is a schematic diagram illustrating a problem in which the electronic device scrolls the display in a direction opposite to the direction in which the user tried to scroll. FIG. 9A shows a state before the user performs a scrolling operation, and FIG. It shows after performing the said operation.

  As shown in FIGS. 9A and 9B, the electronic device may scroll the display in the direction opposite to the direction in which the user tried to scroll. This is because the touch panel detects coordinates in the direction opposite to the direction in which the finger of the user performing the touch operation moves due to the influence of noise (first problem). For example, in the time period 1 to 2 in the graph shown in FIG. 8, the user's finger moves from the coordinate 101 to the coordinate 102 so that the coordinates monotonically increase, whereas the touch panel causes the coordinates to monotonously decrease. , Coordinates 102 and 101 are detected, respectively.

  In order to solve the first problem, a method of setting a predetermined range including coordinates obtained from a touch panel as a “noise removal region” has been generally used. Hereinafter, the raw coordinates detected by the touch panel ("detected coordinates" in the graph shown in FIG. 8) are referred to as "primary coordinates", and the coordinates obtained after performing noise removal processing on the primary coordinates are referred to as "secondary coordinates". Referred to as coordinates.

  Based on FIG. 10, the noise removal method using the said noise removal area | region is demonstrated in detail. FIG. 10 is a flowchart showing processing executed by the conventional noise removal method. As shown in the figure, the above method regards the primary coordinate detected inside the noise removal area as noise and rejects the data of the coordinate. On the other hand, in the above method, the primary coordinate detected outside the noise removal area is regarded as the coordinate correctly detected by the touch panel, the previous secondary coordinate is updated with the primary coordinate, and is accepted as the current secondary coordinate.

  Based on FIG. 11, it will be described that the first problem is less likely to occur due to the noise removal processing using the noise removal region. FIG. 11 is a graph showing changes in true coordinates corresponding to a position designated by the user, primary coordinates before the noise removal process, and secondary coordinates after the noise removal process. Note that the “primary coordinates” in FIG. 11 are the same as the “detected coordinates” in FIG. 8 described above.

  As shown in FIG. 11, when the noise removal region is set at time 0, even if the primary coordinate changes, the secondary coordinate does not change if the coordinate is included in the noise removal region (time 1). ~ 3). That is, since the coordinates detected in the opposite direction due to the influence of noise errors may be included in the noise removal region, the first problem described above is unlikely to occur.

  On the other hand, besides the method of setting the noise removal region, there is a method of correcting the error by using a moving average value with respect to coordinates. The following Patent Document 1 discloses an apparatus for preventing coordinate data from being lost when an input position is displaced in reverse. Patent Document 2 below discloses a processing circuit that efficiently performs noise processing on data obtained from a touch panel. The apparatus and the processing circuit reduce the error by obtaining a moving average value for the coordinates as a correction value for the coordinates.

JP 2005-85141 A (published March 31, 2005) JP 2002-49467 A (published February 15, 2002)

  Based on FIG. 11, a problem newly generated by the method of setting the noise removal region will be described. As shown in the figure, the secondary coordinate rapidly changes from the coordinate 100 to the coordinate 104 between time 3 and time 4 (second problem). This is because the primary coordinate is detected outside the noise removal area at time 4 and the secondary coordinate is updated with the primary coordinate.

  Based on FIG. 12, the malfunction caused by the newly generated problem will be specifically described. FIG. 12 is a schematic diagram illustrating a problem in which the electronic device rapidly scrolls the display when the user scrolls the display. FIG. 12A illustrates a state before the user performs a scroll operation, and FIG. A state in which the display does not move although the scroll operation is performed a little is shown, and (c) shows a state in which the display is rapidly scrolled by further performing the scroll operation. Since the display is rapidly scrolled due to the second problem that the secondary coordinates change suddenly, the user has an unpleasant operational feeling that the display moves rapidly.

  That is, considering only solving the first problem, the method of setting the noise removal region is effective to some extent. However, the second problem is newly generated by this method. In order to avoid the second problem, the noise removal area may be reduced. However, there is a greater risk that the first problem will occur again. In other words, the above two problems are in a trade-off relationship under the conventional method using the noise removal area and cannot be solved at the same time. If both are forced to solve both at the same time, the above-mentioned conventional method can solve both problems only halfway.

  On the other hand, the methods using the moving average value with respect to the coordinates described in Patent Documents 1 and 2 above have a problem that the calculation load applied to the electronic device is large (third problem), and deviate from the true coordinates. There is also a problem that it is easy (fourth problem). Naturally, the method using the moving average value cannot solve the above two problems that occur in the method of setting the noise removal region.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to be able to solve the first problem and the second problem at the same time, thereby providing a user with a comfortable operational feeling. It is to provide a processing device and the like.

In order to solve the above problems, an information processing apparatus according to the present invention provides:
(1) an input surface capable of detecting a position designated by a user operation; a setting unit configured to set a predetermined area on the input surface so as to include a first designated position detected by the input surface; When the second designated position further detected by the user's operation moving along the input surface is not included in the predetermined area set by the setting means, the second designated position is set as the input position. An information processing apparatus including input means for accepting as
(2) The setting unit sets the predetermined area so that the second designated position is included in a biased direction in the direction from the first designated position to the second designated position.
(3) The input means receives a position close to the previously received input position from the second designated position as the current input position.

In addition, in order to solve the above-described problem, a method for controlling the information processing apparatus of the present invention includes:
(1) a setting step for setting a predetermined area on the input surface so as to include a first designated position detected by the user's operation detected by the input surface of the information processing apparatus; An input step of accepting the second designated position as an input position when the second designated position further detected by moving along the input surface is not included in the predetermined area set in the setting step; A method for controlling the information processing apparatus, comprising:
(2) In the setting step, the predetermined area is set so that the second designated position is biased and included in a direction from the first designated position to the second designated position;
(3) In the input step, a position close to the previously received input position from the second designated position is received as the current input position.

  According to said structure, the information processing apparatus of this invention and the control method of the said apparatus are based on the conventional noise removal method using a noise removal area | region. Therefore, the third problem and the fourth problem do not occur from the beginning.

  Here, the information processing apparatus or the like includes the second specified position biased in the direction from the first specified position (previous primary coordinate) to the second specified position (current primary coordinate). A predetermined area (noise removal area) is set so that That is, the information processing apparatus sets the predetermined area so that the predetermined area covers a direction opposite to the direction wider than the direction. Thereby, the first problem that the input surface detects the coordinates in the direction opposite to the direction in which the finger of the user performing the operation moves can be solved more effectively than the conventional method.

  In addition, the information processing apparatus or the like receives a position close to the previously received input position (secondary coordinates) from the second designated position as the current input position. That is, when the second designated position is detected at a position away from the previously accepted input position (outside the predetermined area), the second designated position is not accepted as the current input position, but is accepted last time. A position in consideration of the input position (for example, a position between the second designated position and the previous input position) is accepted as the current input position. Thereby, the information processing apparatus or the like can solve the second problem that the input position changes rapidly.

  Therefore, the information processing apparatus and the control method for the apparatus according to the present invention can solve the first problem and the second problem at the same time, and can give a comfortable operation feeling to the user.

In the information processing apparatus of the present invention,
(1) The input unit is characterized in that an arbitrary position on a route connecting the previously received input position and the second designated position is received as the current input position.

  According to said structure, the information processing apparatus of this invention receives the arbitrary positions on the path | route which connects the input position received last time and the 2nd designated position as this input position. That is, the information processing apparatus accepts the current input position in consideration of the previously accepted input position. Thereby, the second problem that the input position changes rapidly can be solved.

  Therefore, the information processing apparatus and the control method for the apparatus according to the present invention can give a comfortable operation feeling to the user.

In the information processing apparatus of the present invention,
(1) The setting means includes the second designated position biased in a direction from the first designated position to the second designated position after the current input position is received by the input means. The predetermined area is set again as described above.

  According to the above configuration, after the current input position is received, the information processing apparatus of the present invention sets the predetermined area again so that the second designated position is included in the direction biased. That is, the information processing apparatus can update the predetermined area one after another in conjunction with the newly received input position.

  Therefore, in the information processing apparatus of the present invention, the information processing apparatus of the present invention and the control method for the apparatus can give a comfortable operational feeling to the user.

In the information processing apparatus of the present invention,
(1) When the setting unit bisects the predetermined region between the first region and the second region with the second specified position as a boundary, the setting unit makes the second specified position from the first specified position. The predetermined region is set so that the second region located in the direction opposite to the first direction is wider than the first region located in the direction toward the second direction.

  According to the above configuration, the information processing apparatus of the present invention sets the predetermined area so that the second area is wider than the first area. Thereby, the first problem that the input surface detects coordinates in the direction opposite to the direction in which the finger of the user performing the operation moves can be solved more effectively than the conventional method.

  Therefore, in the information processing apparatus of the present invention, the information processing apparatus of the present invention and the control method for the apparatus can give a comfortable operational feeling to the user.

  The information processing apparatus may be realized by a computer. In this case, a control program for causing the information processing apparatus to be realized by the computer by operating the computer as each unit of the information processing apparatus, and a computer-readable recording medium on which the control program is recorded fall within the scope of the present invention. .

  As described above, in the information processing apparatus of the present invention, the setting unit includes the second designated position so that the second designated position is included in a biased direction from the first designated position toward the second designated position. A predetermined area is set, and the input unit is configured to receive a position close to the previously received input position from the second designated position as the current input position.

  In the information processing apparatus control method of the present invention, in the setting step, the second designated position is included in a biased manner in a direction from the first designated position to the second designated position. A predetermined area is set, and in the input step, a position close to the previously received input position from the second designated position is received as the current input position.

  Therefore, the information processing apparatus and the control method for the apparatus according to the present invention have a first problem that the input surface detects coordinates in a direction opposite to the direction in which the finger of the user performing the operation moves, and the input position is abrupt. It is possible to solve the second problem of changing to the same time and to provide a user with a comfortable operation feeling.

It is a block diagram which shows the principal part structure of the smart phone which concerns on one embodiment of this invention. (A) is the schematic diagram showing the external appearance example of the said smart phone, (b) is the schematic diagram showing the example in which a user uses the said smart phone. It is the schematic diagram which showed an example of the basic operation | movement of the said smart phone, (a) represents the state before performing operation which scrolls the display of the said smart phone by a user pushing up a thumb on an input surface, ( b) represents a state after the scrolling operation is performed, and (c) represents a state in which the noise removal region is moved by the scrolling operation. It is a schematic diagram which shows the positional relationship of a coordinate (this primary coordinate, this secondary coordinate, the last secondary coordinate), a noise removal area | region (1st area | region, 2nd area | region), and a moving direction. It is a flowchart which shows an example of the process which the said smart phone performs. It is the schematic diagram showing the two different implementation examples of the said smart phone, (a) represents the example of an external appearance when the said smart phone is further provided with the operation switch and the pointing device, (b) is a function equivalent to the said smart phone. Represents an example of an external appearance when realized by a personal computer. The true coordinates corresponding to the position designated by the user, the primary coordinates detected by the input surface, the secondary coordinates input by the conventional method using the noise removal area, and the secondary coordinates input by the smartphone are shown. It is a time series graph. It is a time series graph which shows the true coordinate corresponding to the position designated by the user, and the coordinate which the touch panel detected. It is a schematic diagram showing the problem that the electronic device scrolls the display in a direction opposite to the direction in which the user tried to scroll, (a) before the user performs the scroll operation, (b) performs the operation. Represents after. It is a flowchart which shows the process which the conventional noise removal method performs. It is a graph showing the change of the true coordinate corresponding to the position designated by the user, the primary coordinate before performing the noise removal process, and the secondary coordinate after performing the noise removal process. It is the schematic diagram showing the problem that an electronic device scrolls a display rapidly when a user scrolls a display, (a) represents before a user performs scroll operation, (b) is a little scroll operation. Although the display has been performed, the display does not move, and (c) shows the display being rapidly scrolled by further scrolling operation.

  Embodiments of the present invention will be described in detail with reference to FIGS.

  A two-dimensional coordinate is obtained from the input surface provided in the smartphone 100. However, in order to simplify the description, the smartphone 100 (and the control method thereof) will be described on the assumption that one-dimensional coordinates obtained by extracting only the x component or y component of the two-dimensional coordinates are handled. However, the smart phone 100 should just apply the process demonstrated below independently to each axis | shaft (x component and y component). In other words, even with the above assumption, the following explanation does not lose generality.

  In addition, in order to clearly indicate that a certain member or information has similar properties or are related to each other, the same number is assigned to a member having a different name, and a or b is further added thereto. Members may be shown. For example, “primary coordinates 3a”, “secondary coordinates 3b”, and the like are shown. In addition, a part of the name and a and b attached to the number may be omitted, and the members and the like may be collectively referred to. For example, the primary coordinate 3a and the secondary coordinate 3b may be collectively referred to as “coordinate 3”.

  In the following description and the above drawings, a description will be given assuming that a right-handed user holds smartphone 100 according to the present embodiment with his / her right hand and makes the right hand's thumb contact the input surface. However, the hand holding and operating the smartphone 100 may be a right hand or a left hand. Further, the finger to be brought into contact with the input surface may not be the thumb.

  In addition, the user can use an indicator such as a stylus instead of a finger to operate the smartphone 100. That is, in the above and below, “user's finger” includes “indicator such as stylus”. However, in order to ensure the simplicity of description, only “user's finger” is described below.

  Further, in the following description and drawings, the description will be made on the assumption that “the user makes a finger touch the input surface”. However, when the input surface included in the input unit 40 is, for example, a touch panel that can detect the proximity of a finger, the smartphone 100 can detect the proximity of the user's finger to the input surface, as in the case of contact. It is possible to operate. That is, in the following description, “contact” includes “proximity”. However, in order to ensure the conciseness of description, only “contact” is described below.

[Outline of smartphone 100]
Based on FIG. 1, the outline | summary of the smart phone 100 is demonstrated. FIG. 1 is a block diagram illustrating a main configuration of the smartphone 100.

  The smartphone (information processing apparatus) 100 includes an input surface capable of detecting a primary coordinate (first designated position) 3a designated by a user operation, and a noise removal region on the input surface so as to include the primary coordinate. An area setting unit (setting means) 12 for setting (predetermined area) 4 and primary coordinates (second designated position) 3a further detected as the user's operation moves along the input surface are When not included in the noise removal area 4, the apparatus includes a position input unit (input unit) 13 that receives the primary coordinates as secondary coordinates (current input position) 3b. Here, “primary coordinates” refers to raw coordinates detected by the input surface, and “secondary coordinates” refers to coordinates obtained after noise removal processing is performed on the primary coordinates.

  Based on FIG. 2, the example of an external appearance and operation example of the smart phone 100 are demonstrated. FIG. 2A is a schematic diagram illustrating an appearance example of the smartphone 100, and FIG. 2B is a schematic diagram illustrating an operation example of the smartphone 100 by a user.

  As illustrated in FIG. 2A, the smartphone 100 includes an input unit 40, a display unit 70, and a power switch 41. FIG. 1 shows the input unit 40 and the display unit 70 separately in order to clearly show the function of each configuration. For example, when the input unit 40 is realized by a touch panel and the display unit 70 is realized by a liquid crystal display, As shown to Fig.2 (a), both may be comprised as integral.

  As shown in FIG. 2B, the user touches the input surface included in the input unit 40 and designates the position on the input surface on the smartphone 100 (by giving the coordinate 3), for example, the icon 6 Information such as selection can be given to the smartphone 100.

  The operation of the smartphone 100 will be outlined based on FIG. FIG. 3 is a schematic diagram illustrating an example of a basic operation of the smartphone 100. FIG. 4A shows a state before the user performs an operation of scrolling the display of the smartphone 100 by pushing up the thumb on the input surface, and FIG. 4B shows the state after the scrolling operation is performed. Represents the state. FIG. 10C shows a state in which the noise removal area 4 has been moved by the scrolling operation.

  As shown in FIG. 3A, the smartphone 100 sets the noise removal area 4 on the input surface so as to include the primary coordinates 3a designated by the user's operation. When the primary coordinate 3a detected by the input surface is included in the noise removal area 4, the smartphone 100 regards the primary coordinate as noise and rejects the information on the primary coordinate.

  As shown in FIG. 3B, when the user pushes up the thumb on the input surface, the input surface detects the primary coordinate 3 a outside the noise removal area 4. In the above case, the smartphone 100 regards the primary coordinates as coordinates correctly detected by the input surface, and sets a position close to the previous secondary coordinates 3c from the primary coordinates 3a detected this time as the current secondary coordinates 3b. Accept. The moving direction (the direction from the first designated position to the second designated position) 5 shown in FIG. 6 is the direction from the previous primary coordinate to the current primary coordinate (the primary coordinate 3a is used for noise removal). (Direction in which the region 4 protrudes).

  As shown in FIG. 3 (c), when the current secondary coordinate 3b is input, the smartphone 100 displays the noise removal region 4 so that the primary coordinate 3a detected this time in the moving direction 5 is biased. Set again.

  Based on FIG. 4, a method for updating the previous secondary coordinate 3 c and a method for setting the noise removal region 4 will be further described. FIG. 4 shows coordinate 3 (current primary coordinate 3a, current secondary coordinate 3b, previous secondary coordinate 3c), noise removal region 4 (first region 4a, second region 4b), and movement direction. 5 is a schematic diagram showing a positional relationship of FIG.

  As shown in FIG. 4, when the input surface detects the current primary coordinate 3a outside the noise removal area 4 (see FIG. 3B), the smartphone 100 detects the previous secondary coordinate 3c and the current primary coordinate. An arbitrary position on the route connecting the coordinate 3a is updated as the secondary coordinate 3b of this time.

  And the smart phone 100 sets the noise removal area | region 4 so that the primary coordinate 3a this time may be biased and included in the moving direction 5 of the primary coordinate. In other words, when the noise removal area 4 is bisected by the first area 4 a and the second area 4 b, the smartphone 100 is more directly opposite to the movement direction 5 than the first area 4 a located in the movement direction 5. The noise removal region 4 is set so that the second region 4b positioned in the direction becomes wider.

  3 and 4, a rectangular area that covers the left and right ends of the display surface of the smartphone 100 is shown as an example of the noise removal area 4. However, the noise removal region 4 may have any shape as long as the primary coordinate 3a of this time is included in the moving direction 5 of the primary coordinate.

  As described above, the second problem that the secondary coordinate 3b changes rapidly from the previous position can be solved by updating the current secondary coordinate 3b. Further, by setting the noise removal region 4 so that the current primary coordinate 3a is biased and included in the primary coordinate moving direction 5, the secondary coordinate 3b is input in a direction opposite to the moving direction 5. The above first problem can be solved.

  Therefore, the smartphone 100 can solve the first problem and the second problem at the same time, and can give a comfortable operation feeling to the user.

[Configuration of Smartphone 100]
Based on FIG. 1, the structure of the smart phone 100 which concerns on this Embodiment is demonstrated. In addition, in order to ensure the conciseness of description, the part which is not directly related to this Embodiment was abbreviate | omitted from description of the structure, and the block diagram. However, the smartphone 100 may include the omitted configuration in accordance with the actual situation.

  Hereinafter, the functions of the respective components will be described in the order of the input unit 40, the input control unit 11 (region setting unit 12, position input unit 13), the control unit 50, and the display unit 70.

  The input unit 40 outputs the two-dimensional coordinate information on the input surface of the user's finger that has touched the input surface as the coordinate 3 to the input control unit 11 (the region setting unit 12 and the position input unit 13). In the present embodiment, it is desirable to provide a touch panel capable of detecting multi-touch as the input unit 40 (that is, the “input surface” is included in the input unit 40). However, the type of hardware is not limited to the touch panel as long as the input unit 40 includes an input device that can input information by a user operation.

  The input control unit 11 comprehensively controls the coordinate detection function of the smartphone 100 and includes an area setting unit 12 and a position input unit 13. The input control unit 11 calculates the moving direction 5 of the primary coordinates from the series of primary coordinates 3 a input from the input unit 40.

  Further, the input control unit 11 executes various determination processes. That is, it is determined whether or not the current primary coordinate 3a detected by the user moving his / her finger on the input surface has changed from the previous primary coordinate 3a. Further, the input control unit 11 determines whether or not the current primary coordinate 3 a is included in the noise removal region 4. Furthermore, the input control unit 11 determines whether or not the user has lifted his / her finger from the input surface based on whether or not the primary coordinates 3a are sequentially input from the input unit 40 (whether or not touch-up has been detected). judge.

  Each function included in the input control unit 11 may be realized by a CPU (Central Processing Unit) executing a program stored in a storage element such as a RAM (Random Access Memory) or a flash memory. . In particular, when the input unit 40 is realized by a touch panel, each function included in the input control unit 11 can be realized as driver software for controlling the touch panel.

  The area setting unit (setting means) 12 sets the noise removal area 4 so that the primary coordinates are included in the moving direction 5 of the primary coordinates 3a. Further, the region setting unit 12 removes noise so that the primary coordinate detected this time is included in the moving direction 5 of the primary coordinate 3a after the secondary coordinate 3b is input by the position input unit 13. Region 4 is set again. The region setting unit 12 outputs the set noise removal region 4 to the position input unit 13.

  For example, the region setting unit 12 sets the noise removal region 4 with a width of − (N + 1) to N + 1 centered on the secondary coordinate 3b or −2 × (N + 1) +1 to 1 centered on the primary coordinate 3a. Here, the above N is the maximum amount of noise that should be ignored (the unit is the minimum unit of display supported by the display surface of the display unit 70, such as a pixel), and the positive sign matches the moving direction 5. The above N may be variable. For example, it is conceivable to set a value corresponding to the area touched by the user's finger. Further, it is desirable that about 90% of the noise falls within the maximum noise amount N.

  The position input unit (input means) 13 accepts a position close to the previous secondary coordinate 3c from the current primary coordinate 3a as the current secondary coordinate 3b. That is, an arbitrary position on the path connecting the previous secondary coordinate 3c and the current primary coordinate 3a is set as the current secondary coordinate 3b.

For example, the position input unit 13
(1) When the direction in which the coordinates increase and the movement direction 5 match:
Previous secondary coordinate 3c <current secondary coordinate 3b <current primary coordinate 3a
(2) When the coordinate increasing direction and the moving direction 5 do not match:
Previous secondary coordinate 3c> Current secondary coordinate 3b> Current primary coordinate 3a
The present secondary coordinate 3b may be updated so as to satisfy the following inequality (see FIG. 4).

  In addition, when the input surface first detects the user's touch operation and the processing is started by the input control unit 11 (the region setting unit 12 and the position input unit 13), the position input unit 13 is the initial 2 The next coordinate 3b is updated with the first detected primary coordinate. The region setting unit 12 sets the noise removal region 4 as a region including the initial secondary coordinate 3b as the center. This is because the input control unit 11 cannot calculate the moving direction 5 of the primary coordinate 3a at the above stage.

  The control unit 50 comprehensively controls various functions of the smartphone 100. Based on the secondary coordinates 3b input from the input control unit 11 (position input unit 13), the control unit 50 executes, for example, processing related to display and outputs the display data 9 to the display unit 70.

  The display unit 70 is a device that displays the display data 9 input from the control unit 50 on the display surface (that is, “display surface” is included in the display unit 70). In this embodiment, a liquid crystal display (LCD) is mainly assumed. However, the type of hardware is not limited as long as the device has a display function (particularly, a flat panel display). For example, an apparatus including a display element such as a plasma display panel (PDP) or an EL (Electroluminescence) display, and a driver circuit that drives the display element based on display data 9 input from the control unit 50 Thus, the display unit 70 can be configured.

  As described above, when the input unit 40 is realized by a touch panel and the display unit 70 is realized by a liquid crystal display, the two may be configured as a single unit (see FIG. 2A). In other words, the input unit 40 may include an input surface made of a transparent transmissive member such as glass formed in a rectangular plate shape, and may be integrally formed so as to cover the display surface of the display unit 70. Thereby, the contact position of the user's finger with respect to the input surface of the input unit 40 and the display position of the graphic or the like displayed on the display surface by the display unit 70 in accordance with the contact match, so the user has a natural input feeling. can get.

[Processes executed by the smartphone 100]
Based on FIG. 5, the flow of processing executed by the smartphone 100 will be described. FIG. 5 is a flowchart illustrating an example of processing executed by the smartphone 100.

  When the input surface detects the user's touch operation (detects touch-down) and the primary coordinate 3a is input from the input unit 40, the position input unit 13 updates the secondary coordinate 3b with the primary coordinate. (Step 1: Hereinafter, abbreviated as S1). At this time, the user only touches the input surface and cannot acquire the moving direction 5 of the primary coordinate 3a. Therefore, the region setting unit 12 determines that the secondary coordinate 3b (that is, the primary coordinate having the same value) is used. The noise removal region 4 is set as a region including 3a) at the center (S2).

  The input control unit 11 determines whether or not the current primary coordinate 3a further detected by the user moving his / her finger on the input surface has changed from the previous primary coordinate 3a (S3). If the primary coordinate has changed (YES in S3), the input control unit 11 further determines whether or not the current primary coordinate 3a is included in the noise removal region 4 (S4).

  When the current primary coordinate 3a is not included in the noise removal area 4 (NO in S4), the position input unit 13 determines a position closer to the previous secondary coordinate 3c from the primary coordinate 3a detected this time, Accepted as the current secondary coordinate 3b (S5, input step). When the input control unit 11 calculates the movement direction 5 of the primary coordinate from the series of primary coordinates 3a input from the input unit 40, the region setting unit 12 causes the current primary coordinate 3a to be biased in the movement direction. The noise removal area 4 is set so as to be included (S6, setting step).

  The input control unit 11 determines whether or not the user has lifted his / her finger from the input surface based on whether or not the primary coordinates 3a are sequentially input from the input unit 40 (whether or not touch-up is detected). (S7). As long as the user continues the touch operation (NO in S7), the input control unit 11 repeatedly executes the processes of S3 to S6.

[Other modifications]
A modification of the present embodiment will be described based on FIG. 6A and 6B are schematic diagrams illustrating two different implementation examples of the smartphone 100. FIG. 6A illustrates an appearance example when the smartphone 100 further includes the operation switch 42 and the pointing device 43, and FIG. The external appearance example at the time of implement | achieving the function equivalent to the smart phone 100 with a personal computer is represented.

  As illustrated in FIG. 6A, the smartphone 100 may further include hardware keys such as the operation switch 42 and the pointing device 43. Note that the type, shape, arrangement, number, etc. of hardware keys such as operation switches are not particularly limited.

  The user can move the display area by moving the pointing device 43, for example. Alternatively, the user can switch to the previously displayed screen by pressing the operation switch 42a, or can switch to the top screen that displays the main menu by pressing the operation switch 42b.

  As illustrated in FIG. 6B, the smartphone 100 can be realized as a personal computer including a touch pad, for example. In this case, the touch operation on the smartphone 100 can be replaced with an operation on the touch pad or various hardware keys. That is, not only the information processing apparatus in which the input unit 40 and the display unit 70 are integrally configured as in the smartphone 100 but also the information processing in which the two are separated as in the personal computer illustrated in FIG. It can also be realized as a device.

[Effects of smartphone 100]
Based on FIG. 7, the effect which the smart phone 100 has is demonstrated. FIG. 7 shows true coordinates corresponding to a position designated by the user, primary coordinates 3a detected by the input surface, secondary coordinates input by a conventional method using a noise removal area, and the present embodiment. 6 is a time series graph showing secondary coordinates 3b input by the smartphone 100. The horizontal axis of the time series graph represents time, and the vertical axis represents coordinates detected by the touch panel at each time. In the graph of FIG. 5, the smartphone 100 sets the noise removal region 4 to − (N + 1) to N + 1 around the secondary coordinate 3b with N = 5.

  As shown in FIG. 7, the secondary coordinates input by the conventional method are not much different from the primary coordinates 3a before the noise removal processing, and both the first problem and the second problem are halfway. It turns out that it has only been solved.

  In particular, when the moving speed of the finger starts to slow down as it approaches the turning point of the coordinate 200, the true coordinate and the secondary coordinate according to the conventional method are significantly different. Therefore, if the secondary coordinate deviates in a direction opposite to the movement direction 5 of the true coordinate, the first problem appears remarkably. In addition, when the folding point is passed, the change in the secondary coordinates becomes extremely large. Therefore, the second problem appears remarkably. As described above, since the conventional method cannot appropriately input the true coordinates corresponding to the position designated by the user, it gives the user an unpleasant operational feeling.

  On the other hand, it can be seen that the secondary coordinates 3b input by the smartphone 100 smoothly follow changes in the true coordinates. That is, the secondary coordinate has a smaller average error than the secondary coordinate input by the conventional method, and is not easily influenced by the change in the moving speed or the return. In particular, the secondary coordinate 3b is input in the direction opposite to the moving direction 5 (first problem), and the secondary coordinate 3b is changed abruptly (second problem).

  Therefore, the smartphone 100 can solve the first problem and the second problem at the same time, and can give a comfortable operation feeling to the user.

[Combination of configurations (technical means) included in each embodiment]
The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

[Example of software implementation]
Finally, each block of the smartphone 100 (particularly the function included in the input control unit 11) may be realized in hardware by a logic circuit formed on an integrated circuit (IC chip), or using a CPU. It may be realized by software.

  In the latter case, the smartphone 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 that expands the program, a memory that stores the program and various data, and the like Storage device (recording medium). An object of the present invention is to provide a recording medium on which a program code (execution format program, intermediate code program, source program) of a control program of the smartphone 100 that is software that realizes the above-described functions is recorded in a computer-readable manner. This can also be achieved by supplying the data to 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 tapes such as magnetic tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks / hard disks, and disks including optical disks such as CD-ROM / MO / MD / DVD / CD-R. IC cards (including memory cards) / optical cards, semiconductor memories such as mask ROM / EPROM / EEPROM / flash ROM, PLD (Programmable logic device), FPGA (Field Programmable Gate Array), etc. Logic circuits can be used.

  Further, the smartphone 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, and 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.

  As described above, in this specification, the means does not necessarily mean a physical means, and includes the case where the function of each means is realized by software. Further, the function of one means may be realized by two or more physical means, and the function of two or more means may be realized by one physical means.

  The present invention can be applied not only to a smartphone but also to a tablet terminal, a personal computer equipped with a touch pad, other electronic devices capable of touch operation, and the like.

3a Primary coordinates (designated position, first designated position, second designated position)
3b Secondary coordinates (current input position)
3c Previous secondary coordinate (input position accepted last time)
4 Noise removal area (predetermined area)
4a 1st area | region 4b 2nd area | region 5 Movement direction (direction which goes to a 2nd designated position from a 1st designated position)
12 Area setting section (setting means)
13 Position input unit (input means)
100 Smartphone (information processing device)

Claims (7)

An input surface capable of detecting a position designated by a user operation; a setting means for setting a predetermined area on the input surface so as to include a first designated position detected by the input surface; and the user operation When the second designated position further detected by moving along the input surface is not included in the predetermined area set by the setting means, the input accepting the second designated position as the input position An information processing apparatus comprising means,
The setting means sets the predetermined area so that the second designated position is included in a biased direction in the direction from the first designated position to the second designated position;
The information processing apparatus, wherein the input unit receives a position close to the previously received input position from the second designated position as a current input position.   The information processing apparatus according to claim 1, wherein the input unit receives an arbitrary position on a route connecting the input position received last time and the second designated position as the current input position.   The setting means is configured such that, after the current input position is received by the input means, the second designated position is included in a direction from the first designated position toward the second designated position. The information processing apparatus according to claim 1, wherein the predetermined area is set again.   The setting means has a direction from the first designated position toward the second designated position when the predetermined area is bisected by the first area and the second area with the second designated position as a boundary. The predetermined region is set so that the second region located in a direction opposite to the first direction is wider than the first region located in the first direction. 4. The information processing apparatus according to any one of 3. A setting step of setting a predetermined area on the input surface so as to include a first designated position specified by a user operation detected by the input surface of the information processing apparatus; and the user operation on the input surface And an input step of accepting the second designated position as an input position when the second designated position further detected by moving along is not included in the predetermined area set in the setting step. A method for controlling an information processing apparatus,
In the setting step, the predetermined area is set so that the second designated position is biased and included in a direction from the first designated position to the second designated position;
In the input step, a position close to the previously received input position from the second designated position is received as the current input position.   A control program for operating the information processing apparatus according to claim 1, wherein the control program causes a computer to function as each of the means. A computer-readable recording medium on which the control program according to claim 6 is recorded.

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