JP2011145751A - Input device and input method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an input device equipped with an region-segmentation analog touch panel that prevents one-point touch from being falsely detected as two-point touch when a user touches a point on a boundary between regions. <P>SOLUTION: The input device is configured to calculate, when a distance between the coordinates of two touch points is smaller than a predetermined value (YES in step S806), the value of one-point coordinate on the basis of the coordinate values of the two touch points, and convert the coordinates of the two touch points to the one-point coordinate (step S807). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an input device including a touch panel and an input method applied to the input device, and more particularly to an input device including an area-divided analog touch panel and an input method applied to the input device.

  The area-divided analog touch panel includes a plurality of first resistance films arranged side by side in a first direction and a plurality of second resistance films arranged side by side in a second direction orthogonal to the first direction. And the plane including the plurality of first resistance films and the plane including the one or more second resistance films are opposed to each other, wherein the first resistance film and the second resistance film Each of the opposed areas is a divided area.

  Here, a four-divided analog touch panel, which is an example of an area-divided analog touch panel, and an input method applied to an input device including the four-divided analog touch panel will be described. The quadrant analog touch panel is disclosed in, for example, Patent Document 1 and Patent Document 2.

  FIG. 6 shows a schematic configuration of the quadrant analog touch panel. The quadrant analog touch panel shown in FIG. 6 includes resistance films WY1 and WY2 arranged side by side in the X-axis direction and resistance films WX1 and WX2 arranged side by side in the Y-axis direction. Electrodes Y1U and Y1D are provided at both ends in the Y-axis direction of the resistance film WY1, electrodes Y2U and Y2D are provided at both ends in the Y-axis direction of the resistance film WY2, and electrodes X1L and X1R are provided at both ends in the X-axis direction of the resistance film WX1. And the electrodes X2L and X2R are provided at both ends of the resistance film WX2 in the X-axis direction. The opposing region between the resistive film WX1 and the resistive film WY1 is a first region, the opposing region between the resistive film WX1 and the resistive film WY2 is a second region, and the opposing region between the resistive film WX2 and the resistive film WY1 is a third region. A region where the resistance film WX2 and the resistance film WY2 face each other is a fourth region.

  When detecting the contact point X coordinate of the first region, a predetermined voltage is applied between the electrodes X1L and X1R provided at both ends of the resistance film WX1, and the A / V of the voltage generated in the resistance film WY1 is detected. A D conversion value is acquired, and a contact point X coordinate of the first region is detected based on the acquired A / D conversion value. An equivalent circuit of the quadrant analog touch panel at this time is shown in FIG. Reference symbol P in FIG. 7A indicates a contact point. At the contact point P, the resistance film WX1 and the resistance film WY1 are short-circuited.

  When detecting the contact point Y coordinate of the first region, a predetermined voltage is applied between the electrodes Y1U and Y1D provided at both ends of the resistance film WY1, and the voltage generated in the resistance film WX1 is detected. An A / D conversion value is acquired, and the contact point Y coordinate of the first region is detected based on the acquired A / D conversion value. An equivalent circuit of the quadrant analog touch panel at this time is shown in FIG. A symbol P in FIG. 7B indicates a contact point. At the contact point P, the resistance film WY1 and the resistance film WX1 are short-circuited.

  Detection of contact point coordinates in the second to fourth regions is the same as detection of contact point coordinates in the first region. That is, when detecting the contact point X coordinate of the second region, a predetermined voltage is applied between the electrodes X1L and X1R provided at both ends of the resistance film WX1, and the voltage generated in the resistance film WY2 is detected. When the A / D conversion value is acquired, the contact point X coordinate of the second region is detected based on the acquired A / D conversion value, and the contact point Y coordinate of the second region is detected, both ends of the resistance film WY2 A predetermined voltage is applied between the electrode Y2U and the electrode Y2D provided in the electrode, and an A / D conversion value of the voltage generated in the resistance film WX1 is acquired. Based on the acquired A / D conversion value When detecting the contact point Y coordinate of the second region and detecting the contact point X coordinate of the third region, a predetermined voltage is applied between the electrode X2L and the electrode X2R provided at both ends of the resistance film WX2, An A / D conversion value of the voltage generated in the resistance film WY1 is obtained and When the contact point X coordinate of the third region is detected based on the acquired A / D conversion value and the contact point Y coordinate of the third region is detected, the electrode Y1U and the electrode Y1D provided at both ends of the resistance film WY1 A predetermined voltage is applied to obtain the A / D conversion value of the voltage generated in the resistance film WX2, and the contact point Y coordinate of the third region is detected based on the obtained A / D conversion value When the contact point X coordinate of the fourth region is detected, a predetermined voltage is applied between the electrodes X2L and X2R provided at both ends of the resistance film WX2, and the voltage generated in the resistance film WY2 is detected. When the A / D conversion value is acquired, the contact point X coordinate of the fourth region is detected based on the acquired A / D conversion value, and the contact point Y coordinate of the fourth region is detected, both ends of the resistance film WY2 A predetermined voltage is applied between the electrodes Y2U and Y2D provided in the Get the A / D converted value of the voltage developed on the film WX2, detects a contact point Y coordinate of the fourth region based on the acquired A / D conversion value.

JP-A-11-161425 Japanese Patent Laid-Open No. 9-45184

  For example, as shown in FIG. 8, when the boundary between the first area and the second area is touched by the user's finger F, the point A is detected in the contact point coordinate detection of the first area, and the contact point of the second area Point B is detected in the coordinate detection. That is, there is a problem that when a point on the boundary line between regions is touched, it is erroneously detected as a two-point input although it is a one-point input. In addition, the shaded portion in FIG. 8 is a range touched by the user's finger F. Further, the state shown in FIG. 8 occurs when a line is drawn across the first area and the second area on the quadrant analog touch panel by the user's finger F.

  In view of the above situation, the present invention includes an area-divided analog touch panel that can prevent erroneous detection as a two-point input even though it is a one-point input when the boundary line between the areas is touched. An object is to provide an input device and an input method applied to the input device.

  In order to achieve the above object, an input device according to the present invention is arranged with a plurality of first resistance films arranged side by side in a first direction and one side by side or in a second direction orthogonal to the first direction. A plurality of second resistance films, and a plane including the plurality of first resistance films and a plane including the one or more second resistance films are opposed to each other. An area-divided analog touch panel in which each of the opposing areas of the resistive film and the second resistive film is divided, and contact for controlling the area-divided analog touch panel and detecting contact point coordinates of the opposing area An input device including a controller that performs point coordinate detection processing for each of the opposing regions, wherein the controller detects contact point coordinates in one of the opposing regions of the first resistance film and the second resistance film. One detected in The distance between the touch point coordinates and another contact point coordinate detected by the contact point coordinate detection process in another one of the opposing regions of the first resistance film and the second resistance film is greater than a predetermined value. Is smaller, the coordinate value of the one-point coordinate is calculated based on the coordinate value of the one contact point coordinate and the coordinate value of the one other contact point coordinate, and the one contact point coordinate and the other contact point coordinate are calculated. The one contact point coordinate is replaced with the one-point coordinate.

  Further, in the input device having the above-described configuration, the controller includes one contact point coordinate detected by a contact point coordinate detection process in one of the opposing regions of the first resistance film and the second resistance film, A distance between another contact point coordinate detected by the contact point coordinate detection process in another one of the opposing regions of the first resistive film and the second resistive film is smaller than a predetermined value, and The distance in the first direction between one contact point coordinate and the other one contact point coordinate, and the distance in the second direction between the one contact point coordinate and the another one contact point coordinate are both Only when the value is equal to or less than the threshold value, based on the coordinate value of the one contact point coordinate and the coordinate value of the other one contact point coordinate, the coordinate value of the one-point coordinate is calculated, and the one contact point coordinate and The one other contact point coordinate may be replaced with the one-point coordinate.

  In the input device having any one of the above configurations, the controller may include the first resistance film and the second resistance film existing between the one contact point coordinate and the another contact point coordinate. When the boundary line between the opposing areas is parallel to the first direction, the coordinate value of the one-point coordinate based on the coordinate value of the one contact point coordinate and the coordinate value of the one other contact point coordinate In the calculation, a value obtained by subtracting the coordinate value of the boundary line from the addition value of the coordinate value in the second direction of the one contact point coordinate and the coordinate value in the second direction of the other one contact point coordinate. , The coordinate value of the one-point coordinate in the second direction, and the opposing of the first resistance film and the second resistance film existing between the one contact point coordinate and the another one contact point coordinate When the boundary line between the regions is parallel to the second direction, In calculating the coordinate value of the one-point coordinate based on the coordinate value of the touch point coordinate and the coordinate value of the one other contact point coordinate, the coordinate value in the first direction of the one contact point coordinate and the other one A value obtained by subtracting the coordinate value of the boundary line from the added value of the coordinate of one contact point with the coordinate value of the first direction may be the coordinate value of the first coordinate of the first direction.

  In order to achieve the above object, the input method according to the present invention includes a plurality of first resistive films arranged in the first direction and one or the second resistive film arranged in the second direction orthogonal to the first direction. A plurality of second resistance films, wherein the plane including the plurality of first resistance films and the plane including the one or more second resistance films are opposed to each other, An input method applied to an input device including an area-divided analog touch panel in which opposed areas of a first resistive film and the second resistive film are divided into individual areas, the first resistive film and One contact point coordinate detected in the contact point coordinate detection process in one of the opposed regions to the second resistive film, and another one of the opposed regions of the first resistive film and the second resistive film The distance from another contact point coordinate detected by the contact point coordinate detection process at A confirmation step for confirming whether or not the contact point coordinates are smaller; and in the confirmation step, if it is confirmed that the distance between the one contact point coordinate and the another one contact point coordinate is smaller than a predetermined value, the one contact point Based on the coordinate value of the coordinate and the coordinate value of the other one contact point coordinate, the coordinate value of the one-point coordinate is calculated, and the one contact point coordinate and the another one contact point coordinate are converted into the one-point And a point conversion step for replacing the coordinates.

  According to the present invention, when the distance between one contact point coordinate and another contact point coordinate is smaller than a predetermined value, the coordinate value of the one contact point coordinate and the coordinate of the other one contact point coordinate. Based on the value, the coordinate value of the one-point coordinate is calculated, and the one contact point coordinate and the another one contact point coordinate are replaced with the one-point coordinate, so that the boundary line between the areas is touched In this case, it is possible to prevent erroneous detection as a two-point input even though it is a one-point input.

It is a figure which shows the example of schematic structure of the input device which concerns on one Embodiment of this invention. It is a flowchart which shows the detection operation | movement of the contact point coordinate of a 4-part dividing analog touch panel. It is a time chart of each part voltage in detection operation of a contact point coordinate of a four division analog touch panel. It is a flowchart which shows the detail of a boundary point process. It is a figure which shows the example of the positional relationship of two contact point coordinates detected in the state where the boundary line of area | regions was touched, and the coordinate which united them. It is a figure which shows schematic structure of a 4 division | segmentation analog touch panel. It is a figure which shows the equivalent circuit of a 4 division | segmentation analog touch panel in the case of detecting the contact point coordinate of a 1st area | region. It is a front view of the quadrant analog touch panel which shows the mode of contact point coordinate detection in the state where the boundary line of area | regions was touched.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating a schematic configuration example of an input device according to an embodiment of the present invention.

  An input device according to an embodiment of the present invention shown in FIG. 1 includes a quadrant analog touch panel 1, a touch panel I / F (interface) circuit 2, a controller 3, a host I / F circuit 4, and an LED (Light Emitting). Diode) 5. The quadrant analog touch panel 1 is configured as shown in FIG. In addition, the controller 3 controls the four-part analog touch panel 1 via the touch panel I / F circuit 2, and inputs information input to the four-part analog touch panel 1 as an output report via the host I / F circuit 4. A controller that transfers the data to a host (not shown) and controls the LEDs 5 according to the state of the quadrant analog touch panel 1, for example, a microcomputer having a flash memory, a RAM, and a CPU can be used.

  Next, the contact point coordinate detection operation of the quadrant analog touch panel 1 performed by the input device according to the embodiment of the present invention shown in FIG. 1 will be described with reference to FIGS. FIG. 2 is a flowchart showing the operation of detecting the contact point coordinates of the quadrant analog touch panel 1, and FIG. 3 is a time chart of the voltage of each part during the operation of detecting the contact point coordinates of the quadrant analog touch panel 1. In FIG. 3, symbols Y1D, Y2D, X1R, and X2R indicate the voltage of the electrode Y1D, the voltage of the electrode Y2D, the voltage of the electrode X1R, and the voltage of the electrode X2R, respectively.

  The flowchart operation shown in FIG. 2 is executed for each transfer rate of the output report transferred from the controller 3 to the external host (not shown) via the host I / F circuit 4.

<Touch detection process>
First, a touch detection process is executed (step S10). The touch detection process is executed in a period T1 in FIG.

  In the period T1, the controller 3 applies 0V to the electrode X1L of the quadrant analog touch panel 1, opens the electrode X1R of the quadrant analog touch panel 1, applies 0V to the electrode X2L of the quadrant analog touch panel 1, and divides into four The electrode X2R of the analog touch panel 1 is opened, and further, 5V is applied to the electrodes Y1D and Y2D of the quadrant analog touch panel 1 and waits for the state of the quadrant analog touch panel 1 to be stabilized. When the user does not touch the quadrant analog touch panel 1, the state where the electrodes Y1D and Y2D of the quadrant analog touch panel 1 are 5V is maintained. On the other hand, when the user is touching the quadrant analog touch panel 1, at least one of the resistance films WY1 and WY2 of the quadrant analog touch panel 1 is at least one of the resistance films WX1 and WX2 of the quadrant analog touch panel 1. At least one of the electrodes Y1D and Y2D changes from 5V to 0V. 3 shows that the resistive film WY1 of the quadrant analog touch panel 1 is in contact with at least one of the resistive films WX1 and WX2 of the quadrant analog touch panel 1, and the resistive film WY2 of the quadrant analog touch panel 1 is the quadrant analog touch panel 1. A case in which at least one of the resistance films WX1 and WX2 is in contact is illustrated. In addition, since the electrode X1L of the quadrant analog touch panel 1 is 0V, the electrode X1R of the quadrant analog touch panel 1 in the open state becomes 0V as a result. Similarly, since the electrode X2L of the quadrant analog touch panel 1 is 0V, the electrode X2R of the quadrant analog touch panel 1 in the open state is eventually 0V.

<Touch detection determination process>
Next, a touch detection determination process is executed (step S20). The touch detection determination process is executed in a period T2 in FIG.

  In the period T2, the controller 3 performs the A / D conversion value of the voltage generated at the electrode Y1U of the quadrant analog touch panel 1 and the A / D conversion value of the voltage generated at the electrode Y2U of the quadrant analog touch panel 1. And detect. Note that the A / D conversion may be performed by either the quadrant analog touch panel 1 or the touch panel I / F circuit 2.

  The controller 3 determines that there is a touch if at least one of the two detected voltages is 2 V or less. The voltage value (2V) serving as a determination reference is stored as a parameter by the controller 3, and the setting can be changed.

  If it is determined that there is a touch in the touch detection determination process in step S20 (YES in step S20), the controller 3 turns on the LED 5 (step S30), and then executes the contact point coordinate detection process (step S40). The contact point coordinate detection process includes a contact point X coordinate detection process and a contact point Y coordinate detection process.

<Contact point X coordinate detection process>
In the period T3, the controller 3 applies 0V to the electrode X1L of the quadrant analog touch panel 1, applies 5V to the electrode X1R of the quadrant analog touch panel 1, and applies 0V to the electrodes Y1D and Y2D of the quadrant analog touch panel 1. To do. The length of the period T3 is stored as a parameter by the controller 3, and can be changed.

  In a period T4 following the period T3, the controller 3 opens the electrodes Y1U, Y2U, Y1D, and Y2D of the quadrant analog touch panel 1 and waits until the resistance films WY1 and WY2 of the quadrant analog touch panel 1 are stabilized. . The length of the period T4 is stored as a parameter by the controller 3, and the setting can be changed.

  In the period T5 following the period T4, the controller 3 acquires the A / D conversion value of the voltage generated at the electrode Y1D of the quadrant analog touch panel 1 four times, discards the maximum value and the minimum value, Add data. Similarly, the controller 3 acquires the A / D conversion value of the voltage generated at the electrode Y1U of the quadrant analog touch panel 1 four times, discards the maximum value and the minimum value, and adds the two intermediate data. Then, the controller 3 averages the two addition values (a value twice as large as the A / D conversion value) to obtain the contact point X coordinate of the first region.

  In the period T5, the controller 3 acquires the voltage generated at the electrode Y2D of the quadrant analog touch panel 1 four times, discards the maximum value and the minimum value, and adds the intermediate two data. Similarly, the controller 3 acquires the voltage generated at the electrode Y2U of the quadrant analog touch panel 1 four times, discards the maximum value and the minimum value, and adds the two pieces of intermediate data. Then, the controller 3 averages the two addition values (a value twice as large as the A / D conversion value), and sets the contact point X coordinate of the second region.

  In a period T6 following the period T5, the controller 3 performs a process in which the voltage applied to the electrodes X1L and X1R and the voltage applied to the electrodes X2L and X2R in the period T3 to the period T5 are exchanged. Thereby, the contact point X coordinate of the third region and the contact point X coordinate of the fourth region are obtained.

<Contact point Y coordinate detection process>
The contact point Y coordinate detection process is executed using the same method as the contact point X coordinate detection process.

  In a period T7 following the period T6, the controller 3 applies 0 V to the electrode Y1U of the quadrant analog touch panel 1, applies 5 V to the electrode Y1D of the quadrant analog touch panel 1, and the electrodes X1R and X2R of the quadrant analog touch panel 1 0V is applied to. The length of the period T7 is stored as a parameter by the controller 3, and the setting can be changed.

  In the period T8 following the period T7, the controller 3 opens the electrodes X1L, X2L, X1R, and X2R of the quadrant analog touch panel 1 and waits until the resistance films WX1 and WX2 of the quadrant analog touch panel 1 are stabilized. . The length of the period T8 is stored as a parameter by the controller 3, and the setting can be changed.

  In the period T9 following the period T8, the controller 3 acquires the A / D conversion value of the voltage generated at the electrode X1R of the quadrant analog touch panel 1 four times, discards the maximum value and the minimum value, Add data. Similarly, the controller 3 acquires the A / D conversion value of the voltage generated at the electrode X1L of the quadrant analog touch panel 1 four times, discards the maximum value and the minimum value, and adds the two intermediate data. Then, the controller 3 averages the two addition values (a value twice as large as the A / D conversion value), and sets it as the contact point Y coordinate of the first region.

  In the period T9, the controller 3 acquires the voltage generated at the electrode X2L of the quadrant analog touch panel 1 four times, discards the maximum value and the minimum value, and adds the two intermediate data. Similarly, the controller 3 acquires the voltage generated at the electrode X2L of the quadrant analog touch panel 1 four times, discards the maximum value and the minimum value, and adds the two pieces of intermediate data. Then, the controller 3 averages the two addition values (a value twice as large as the A / D conversion value), and sets the contact point Y coordinate of the third region.

  In the period T10 following the period T9, the controller 3 performs a process in which the voltage applied to the electrodes Y1U and Y1D and the voltage applied to the electrodes Y2U and Y2D in the period T7 to the period T9 are exchanged. Thereby, the contact point Y coordinate of the second region and the contact point Y coordinate of the fourth region are obtained.

  Thereafter, the controller 3 executes again the contact point X coordinate detection process and the contact point Y coordinate detection process described above (after the period T11 following the period T10). However, in the second contact point X-coordinate detection process and the contact point Y-coordinate detection process, an electrode that applies 0 V and an electrode that applies 5 V in the first contact point X-coordinate detection process and the contact point Y-coordinate detection process. Replace.

  A certain contact point coordinate obtained by the first contact point X coordinate detection process and the contact point Y coordinate detection process, and a certain contact obtained by the second contact point X coordinate detection process and the contact point Y coordinate detection process. If the ratio with the point coordinates is equal to or less than a preset threshold value, the controller 3 sets the state of the area corresponding to the certain contact point coordinates to “stable” and stores it. Also, a certain contact point coordinate obtained by the first contact point X coordinate detection process and the contact point Y coordinate detection process, and a second contact point X coordinate detection process and the contact point Y coordinate detection process. If the ratio to the contact point coordinates is not less than or equal to a preset threshold value, the controller 3 sets the state of the area corresponding to the certain contact point coordinates to “slightly unstable” and stores it. The controller 3 is obtained by only one of the first contact point X coordinate detection process and the contact point Y coordinate detection process, the second contact point X coordinate detection process, and the contact point Y coordinate detection process. The state of the area corresponding to the contact point coordinates is set to “unstable” and stored. Further, the controller 3 stores the state of the area where the contact point coordinates do not exist as “non-contact”.

  The controller 3 performs certain contact point coordinates obtained by the first contact point X coordinate detection process and the contact point Y coordinate detection process and the second contact point X coordinate detection process only for the region set as “stable”. And the contact point coordinate obtained by the contact point Y coordinate detection process is averaged and stored as the contact point coordinate.

  When the contact point coordinate detection process in step S40 described above ends, the process proceeds to step S70 described later.

  On the other hand, when it is not determined that there is a touch in the touch detection determination process in step S20 (NO in step S20), the controller 3 turns off the LED 5 (step S50), and then all the states of the first to fourth regions are changed. It is set and stored as “non-contact” (step S60), and the process proceeds to step S70 described later.

<Coordinate stabilization judgment>
In step S70, a coordinate stabilization determination is performed. In the process up to step S60, the state of each of the first to fourth regions is determined as “stable”, “slightly unstable”, “unstable”, or “non-contact”.

  In the coordinate stabilization determination, the controller 3 determines that the “slightly unstable” or “unstable” region is “unstable” and stores the determination result. Further, in the coordinate stabilization determination, the controller 3 determines that the “non-contact” area is “non-contact” and stores the determination result. In the coordinate stabilization determination, the controller 3 refers to the state in the previous flow process of the area for the “stable” area, and if the state in the previous flow process is not “stable”. If it is determined that the contact is “first contact” and the state in the previous flow process is also “stable”, it is determined that “contact is continuing”, and the determination result is stored.

<Boundary point processing>
In step S80 following step S70, boundary point processing is executed. Details of the boundary point processing will be described with reference to FIG.

  First, the controller 3 checks whether or not the number of contact point coordinates is 2 or more (step S801). If the number of contact point coordinates is less than 2 (NO in step S801), the boundary point processing is immediately terminated. On the other hand, if the number of contact point coordinates is 2 or more (YES in step S801), the variable p is set to 1 and the variable i is set to 2 (step S802).

  In step S803 following step S802, the controller 3 checks whether or not the state of the p-th region is “stable”, in other words, whether or not the contact point coordinates exist in the p-th region. If the state of the p-th region is not “stable” (NO in step S803), the process proceeds to step S810 described later. On the other hand, if the state of the p-th region is “stable” (YES in step S803), the controller 3 determines whether the state of the i-th region is “stable”, in other words, touches the i-th region. It is confirmed whether or not point coordinates exist (step S804).

  If the state of the i-th area is not “stable” (NO in step S804), the process proceeds to step S808 described later. On the other hand, if the state of the i-th region is “stable” (YES in step S804), the controller 3 determines the contact point coordinates (Xp, Yp) of the p-th region and the contact point coordinates (Xi, Yi) of the i-th region. The distance Xo in the X-axis direction and the distance Yo in the Y-axis direction are calculated (step S805).

  In step S806 following step S805, the controller 3 determines whether or not both the distance Xo in the X-axis direction and the distance Yo in the Y-axis direction are equal to or less than a preset threshold value. If at least one of the distance Xo in the X-axis direction and the distance Yo in the Y-axis direction is larger than the threshold value (NO in step S806), the process proceeds to step S808 described later. On the other hand, if the distance Xo in the X-axis direction and the distance Yo in the Y-axis direction are both equal to or smaller than the threshold value (YES in step S806), the controller 3 determines that the contact point coordinates (Xp, Yp) of the p-th area and the i-th area The point coordinates (Xc, Yc) are calculated based on the contact point coordinates (Xi, Yi), and the contact point coordinates (Xp, Yp) of the pth region and the contact point coordinates ( (Xi, Yi) is replaced with the point coordinates (Xc, Yc) (step S807), and then the process proceeds to step S808. As a result, it is possible to prevent erroneous detection as a two-point input even though it is a one-point input when the boundary line between the regions is touched. As a method of replacing the contact point coordinates (Xp, Yp) of the p-th region and the contact point coordinates (Xi, Yi) of the i-th region with a single point coordinate (Xc, Yc), for example, the state of the p-th region is “ A replacement method may be employed in which the coordinate value of the contact point coordinates in the i-th region is changed from (Xi, Yi) to (Xc, Yc) by changing from “stable” to “non-contact”. Contrary to the replacement method, the state of the i-th region is changed from “stable” to “non-contact”, and the coordinate value of the contact point coordinates of the p-th region is changed from (Xp, Yp) to (Xc, Yc). You may change to Further, instead of these replacement methods, for example, the controller 3 stores the coordinate ranges of the respective regions in advance, and whether the coordinated coordinates (Xc, Yc) are included in the coordinate range of the p-th region or the coordinates of the i-th region. If it is determined whether it is included in the range, and it is determined that the point coordinates (Xc, Yc) are included in the coordinate range of the p-th region, the state of the i-th region is changed from “stable” to “non-contact” Then, the coordinate value of the contact point coordinate of the p-th region is changed from (Xp, Yp) to (Xc, Yc), and it is determined that the one-point coordinate (Xc, Yc) is included in the coordinate range of the i-th region. In this case, the state of the p-th region is changed from “stable” to “non-contact”, and the coordinate value of the contact point coordinates of the i-th region is changed from (Xi, Yi) to (Xc, Yc). Good.

  In step S808, the controller 3 determines whether there is a next variable i. If there is the next variable i (YES in step S808), the controller 3 updates the variable i (step S809), and then returns to step S804. On the other hand, if there is no next variable i (NO in step S808), the controller 3 determines whether there is a next variable p (step S810). If there is the next variable p (YES in step S810), the controller 3 updates the variable p (step S811), and then returns to step S803. On the other hand, if there is no next variable p (NO in step S810), the boundary point process is terminated. In this embodiment, since the quadrant analog touch panel 1 is used, the variable p and the variable i are 1, 2, 3, and 4, respectively, and the variable p and the variable i simultaneously have the same value. Never take.

  Here, with reference to FIG. 5, an example of calculating the point coordinates (Xc, Yc) in step S807 will be described.

  First, a case where there is one boundary line between the p-th region and the i-th region and the boundary line is parallel to the Y axis will be considered. FIG. 5 shows the positional relationship between the contact point coordinates (Xp, Yp) of the p-th region and the contact point coordinates (Xi, Yi) of the i-th region, and the single point coordinates (Xc, Yc) obtained by integrating them. A circle with a radius R in FIG. 5 corresponds to the hatched portion in FIG. Further, in the positional relationship of FIG. 5, it is considered that the Y coordinate value (Yp) of the contact point coordinates of the p-th region and the Y coordinate value (Yi) of the contact point coordinates of the i-th region match.

From the positional relationship of FIG. 5, the following formulas (1) and (2) are established.
Rp = CUX−Xp (1)
Ri = Xi-CUX (2)

Further, from the positional relationship of FIG.
R = (Rp + Rp + Ri + Ri) / 2
R = Rp + Ri (3)

Further, from the positional relationship of FIG. 5, the X coordinate value (Xc) of the one-point coordinates is as follows.
Xc = (Xp−Rp) + R
(3) Substituting the equation Xc = Xp−Rp + Rp + Ri
Xc = Xp + Ri
(2) Substituting the equation Xc = Xp + Xi-CUX

  Therefore, the X coordinate value (Xc) of the unification coordinate is calculated from the sum of the X coordinate value (Xp) of the contact point coordinate of the p-th region and the X coordinate value (Xi) of the contact point coordinate of the i-th region. The X coordinate value (CUX) is subtracted. Further, the Y coordinate value (Yc) of the one-point coordinate is obtained by averaging the Y coordinate value (Yp) of the contact point coordinate of the pth region and the Y coordinate value (Yi) of the contact point coordinate of the ith region. .

  The case where there is one boundary line between the p-th region and the i-th region and the boundary line is parallel to the X axis can be handled in the same manner. That is, the Y coordinate value (Yc) of the unification coordinate is obtained by adding the Y coordinate value (Yp) of the contact point coordinate of the pth region and the Y coordinate value (Yi) of the contact point coordinate of the ith region. It is assumed that the Y coordinate value (CUY) is subtracted. Further, the X coordinate value (Xc) of the one-point coordinate is obtained by averaging the X coordinate value (Xp) of the contact point coordinate of the p-th region and the X coordinate value (Xi) of the contact point coordinate of the i-th region. .

  The case where there are two boundary lines between the p-th region and the i-th region, one of the boundary lines is parallel to the X axis, and the other is parallel to the X axis can be handled in the same manner. That is, the X coordinate value (Xc) of the one-point coordinate is one boundary from the sum of the X coordinate value (Xp) of the contact point coordinate of the pth region and the X coordinate value (Xi) of the contact point coordinate of the ith region. The X coordinate value (CUX) of the line is subtracted, and the Y coordinate value (Yc) of the point coordinates is the Y coordinate value (Yp) of the contact point coordinate of the pth region and the Y coordinate of the contact point coordinate of the ith region. It is assumed that the Y coordinate value (CUY) of the other boundary line is subtracted from the added value with the value (Yi).

  The controller 3 stores in advance the X coordinate value (CUX) of one boundary line and the Y coordinate value (CUY) of the other boundary line.

<Output report generation>
In step S90 following step S80, an output report is generated. The generated output report is transferred to an external host (not shown) via the host I / F circuit 4.

  Based on the determination result in step S70 and the value of the contact point coordinates, the controller 3 determines that “the quadrant analog touch panel 1 has been touched” and “the touch on the quadrant analog touch panel 1 has been touched”. Decide whether the state is "released", "contact point coordinates have moved more than a predetermined distance", or "contact point coordinates have moved less than a predetermined distance and have remained for more than a predetermined time" The determined content is used as an output report. If the contact point coordinates exist, the value of the contact point coordinates is also included in the output report.

  As mentioned above, although embodiment which concerns on this invention was described, the range of this invention is not limited to this, A various change can be added and implemented in the range which does not deviate from the main point of invention. For example, in the embodiment described above, a step of correcting the detected contact point coordinates may be provided between step S70 and step S80. Further, if the point coordinates (Xc, Yc) are calculated on the basis of two contact point coordinates that are erroneously detected when the boundary line between the regions is touched, It may be calculated by a method other than the method.

1 Quadruple analog touch panel 2 Touch panel I / F circuit 3 Controller 4 Host I / F circuit 5 LED

Claims (4)

A plurality of first resistance films arranged side by side in a first direction and one or a plurality of second resistance films arranged side by side in a second direction orthogonal to the first direction, the plurality of sheets The plane including the first resistance film and the plane including the one or more second resistance films are opposed to each other, and each of the opposed regions of the first resistance film and the second resistance film is one by one. An area-divided analog touch panel that is divided into two areas;
An input device comprising: a controller that controls the area-divided analog touch panel to detect contact point coordinates of the opposing area for each of the opposing areas;
The controller is
One contact point coordinate detected by the contact point coordinate detection process in one of the opposing regions of the first resistive film and the second resistive film, and the opposing of the first resistive film and the second resistive film When the distance from another contact point coordinate detected by the contact point coordinate detection process in another one of the regions is smaller than a predetermined value,
Based on the coordinate value of the one contact point coordinate and the coordinate value of the another one contact point coordinate, the coordinate value of the one-point coordinate is calculated,
The input device, wherein the one contact point coordinate and the another one contact point coordinate are replaced with the one-point coordinate. The controller is
One contact point coordinate detected by the contact point coordinate detection process in one of the opposing regions of the first resistive film and the second resistive film, and the opposing of the first resistive film and the second resistive film The distance from another contact point coordinate detected by the contact point coordinate detection process in another one of the regions is smaller than a predetermined value, and the one contact point coordinate and the other one contact point Only when the distance in the first direction from the coordinate and the distance in the second direction from the one contact point coordinate and the other one contact point coordinate are both equal to or less than a threshold value,
Based on the coordinate value of the one contact point coordinate and the coordinate value of the another one contact point coordinate, the coordinate value of the one-point coordinate is calculated,
The input device according to claim 1, wherein the one contact point coordinate and the another one contact point coordinate are replaced with the one-point coordinate. The controller is
When a boundary line between opposing regions of the first resistance film and the second resistance film existing between the one contact point coordinate and the another one contact point coordinate is parallel to the first direction. In addition,
In calculating the coordinate value of the one-point coordinate based on the coordinate value of the one contact point coordinate and the coordinate value of the another one contact point coordinate, the coordinate value of the one contact point coordinate in the second direction The value obtained by subtracting the coordinate value of the boundary line from the addition value of the other one contact point coordinate with the coordinate value in the second direction is set as the coordinate value in the second direction of the one-point coordinates,
A boundary line between the opposing regions of the first resistance film and the second resistance film existing between the one contact point coordinate and the another one contact point coordinate is parallel to the second direction. In addition,
In calculating the coordinate value of the one-point coordinate based on the coordinate value of the one contact point coordinate and the coordinate value of the another one contact point coordinate, the coordinate value of the one contact point coordinate in the first direction The coordinate value in the first direction of the one-point coordinates is obtained by subtracting the coordinate value of the boundary line from the addition value of the other one contact point coordinate with the coordinate value in the first direction. Or the input device of Claim 2. A plurality of first resistance films arranged side by side in a first direction and one or a plurality of second resistance films arranged side by side in a second direction orthogonal to the first direction, the plurality of sheets The plane including the first resistance film and the plane including the one or more second resistance films are opposed to each other, and each of the opposed regions of the first resistance film and the second resistance film is one by one. An input method applied to an input device including an area-divided analog touch panel in which one is divided into areas,
One contact point coordinate detected by the contact point coordinate detection process in one of the opposing regions of the first resistive film and the second resistive film, and the opposing of the first resistive film and the second resistive film A confirmation step for confirming whether or not the distance from another contact point coordinate detected by the contact point coordinate detection process in another one of the regions is smaller than a predetermined value;
When it is confirmed in the confirmation step that the distance between the one contact point coordinate and the another one contact point coordinate is smaller than a predetermined value, the coordinate value of the one contact point coordinate and the another one contact And a point conversion step of calculating a coordinate value of the one-point coordinate based on the coordinate value of the point coordinate, and replacing the one contact point coordinate and the another one contact point coordinate with the one-point coordinate. An input method characterized by

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