JPH10254607A - Control method for input panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect the coordinates of a 2nd depression point obtained while 1st depression is carried on by doubling the difference between a detected coordinate position and the coordinate position of the 1st depression point and adding it to the coordinate position of the 1st depression point. SOLUTION: In an X-coordinate read process, an X-directional voltage is applied to one conductor film through an electrode and an X coordinate is read out through the other conductor film and electrode. In a Y-coordinate read process, a Y-directional voltage is applied to one conductor film through the electrode and a Y coordinate is read out through the other conductor film and electrode. Then it is checked how many times depression is done after the read of the Y coordinate. In a correction value calculating process, a correction value for calculating the coordinate positions X4 , Y4 of the 2nd depression point are found from X3 =(X2 -X1 )×2 and Y3 =(Y2 -Y1 )×2, where X2 , Y2 are the read coordinates and X3 , Y3 are the calculated correction value. Further, the coordinate values X4 , Y4 of the 2nd depression point are found from X4 =X1 +X3 and Y4 =Y1 +Y3 .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an analog input panel for extracting a voltage corresponding to a coordinate position of a pressed point by using a resistive film adhered to a substrate, and more particularly to an analog input panel. The present invention relates to a control method of an input panel capable of detecting coordinates with a second pressed point performed while the pressing is continued.

[0002] In the case of an analog input panel for extracting a voltage corresponding to the coordinate position of a pressed point using a resistive film attached to a transparent substrate, generally only the coordinates of the first pressed point are detected and the first input point is detected. The coordinates of the second pressed point performed while the pressing is continued cannot be detected.

However, the second pressing performed during the first pressing is continued.
If the coordinates of the pressed point can be detected, for example, the setting speed at the time of setting the conditions is increased. Therefore, development of a control method for an input panel capable of detecting the coordinates of the second pressed point performed while the first pressing is continued has been demanded.

[0004]

2. Description of the Related Art FIG. 4 is a schematic diagram showing a configuration of an input panel.
FIG. 5 is a diagram for explaining the operation principle of the input panel, and FIG. 6 is a flowchart showing a conventional control method.

The analog input panel has a panel section 1 having two conductive films 11 and 12 opposed to each other with a gap as shown in FIG. 4, for example, and the conductive film 11 sandwiches a central input range 13. And two pairs of electrodes 14 and 15 arranged four times along the periphery so as to face each other.

A drive circuit 2 for applying a voltage to the panel section 1 includes transistors 21 and 22 for applying an X-direction voltage to the conductor film 11 via an electrode 14, and a Y-direction voltage for the conductor film 11 via an electrode 15. And transistors 23 and 24 for applying voltage. A voltage is applied by a command from the control unit 3.

The drive circuit 2 is controlled by the control unit 3 to detect a contact / non-contact between the conductor films 11 and 12 by a switch 25.
When the switch 25 is operated, the conductor film 1 passes through the electrode 16, the electrode 14, and the transistor 22 on the conductor film 12.
A voltage is applied between 1 and 12.

In the circuit for detecting contact / non-contact of the conductor film shown in FIG. 4, when the switch 25 is operated by a command from the control section 3, the A / D converter 31 is connected via the electrode 16.
Is a voltage divided by the resistor R and the resistance of each conductor film.

That is, if the voltage input to the A / D converter 31 when the switch 25 is operated when detecting contact / non-contact between the conductor films is higher than the reference voltage, the contact between the conductor films must be non-contact. Indicates that the conductive films are in contact with each other when the voltage is lower than the reference voltage.

In such an analog input panel, when one point on the panel section 1 is pressed, the two conductor films 11 and 12 come into contact at the pressed point, and when a voltage is applied to the electrode 14 at that time, the contact is made. The voltage is divided at the pressed point, and a voltage indicating the X coordinate is output via the electrode 16.

When a voltage is applied to the electrode 15, the voltage is divided at the depressed point, a voltage indicating the Y coordinate is output via the electrode 16, and the voltage V ₁ indicating the X coordinate and the Y coordinate are output. The indicated voltage V ₂ is converted into a digital signal by the A / D converter 31 and input to the control unit 3.

For example, as shown in FIG.
The resistance value in the direction is almost evenly distributed, and 5 V
The application of a voltage, the voltage on conductor film 11 varies linearly from 0V proportional to the distance to the pressed point from the starting point L ₁ to 5V as shown in Figure 5 (b).

As shown in FIG. 6, the conventional control method of the input panel includes a contact / non-contact detection step of the conductor film and an XY coordinate reading step. The step of detecting the contact / non-contact of the conductor film is performed by the conductor film. If there is no contact between 11 and 12, the detection process is repeated until contact is detected.

In the X coordinate reading step, a voltage in the X direction is applied to the conductor film 11 via the electrode 14, the X coordinate is read via the conductor film 12 and the electrode 16, and the read X coordinate is set to a predetermined detection range. If it is within, the process proceeds to the next step, and if it is outside the predetermined detection range, an NG alarm is output.

Further, in the Y coordinate reading step, a voltage in the Y direction is applied to the conductive film 11 through the electrode 15 to read the Y coordinate through the conductive film 12 and the electrode 16, and the read Y coordinate is within a predetermined detection range. If it is within, the process proceeds to the next step, and if it is outside the predetermined detection range, an NG alarm is output.

X read through the conductor film 12 and the electrode 16
Both coordinates and Y coordinates are within the predetermined detection range
If confirmed, the read X coordinate value X₁And Y coordinate
Value Y ₁Are stored in the storage circuit 32 and are not shown.
Output to the host device.

[0017]

If the coordinates of the second pressed point pressed while the first pressing is continued can be detected, for example, the setting speed at the time of setting the conditions is increased. In the case of (1), the coordinates of the second pressed point performed during the first pressing can not be detected in principle.

[0018] For example, voltages corresponding to the coordinates P ₁ as shown in FIG. 5 (d) when pressing the P ₁ as shown in FIG. 5 (c) is taken out, the P ₂ during pressing the P ₁ Press to P
It becomes the voltage corresponding to the intermediate coordinates of P ₁ and P ₂ rather than the voltage corresponding to the _second coordinate.

[0019] That is, when the user presses the P ₂ during pressing the P ₁ in an analog type input panel to a conductive film to which a voltage is applied and one resistor, the side where the pressing points P ₁ and P ₂ reads voltage However, there is a problem that the short-circuit is caused by the conductive film and the difference in the resistance value during the short-circuit is eliminated.

It is an object of the present invention to provide a control method of an input panel capable of detecting the coordinates of a second pressed point performed while the first pressing is continued.

[0021]

FIG. 1 is a flowchart showing a control method of an input panel according to the present invention. The same object is denoted by the same symbol throughout the drawings.

[0022] The above problem is that pressing of the conductive film is performed by the first pressing.
Down, or a second press performed while the first press continues.
Pressing number determination step of determining that the pressing
If it is below, the coordinate position X indicating the first pressed point₁, Y₁Acknowledge
A first coordinate recognition step of recognizing and storing
If there is, the correction value X_Three, Y_ThreeA correction value calculating step of calculating
Coordinate position X indicating second pressed point_Four, Y_Four2nd position to calculate
And a correction value calculation step.
Obtained coordinate position X_Two, Y_TwoAnd the coordinate position X ₁, Y₁
And coordinate position X_Two, Y_TwoAnd the correction value X_Three, Y_ThreeWhen
In the second coordinate calculation step, the coordinate position X₁, Y₁Correction value X
_Three, Y_ThreeAnd the coordinate position X of the second pressed point _Four, Y_FourGet
This is achieved by the input panel control method of the present invention.

As described above, when the second pressing is executed while the first pressing is continued, the resistance interposed between the two pressing points is short-circuited by the conductive film, and the first pressing point and the second pressing are performed. A voltage corresponding to a coordinate position intermediate to the point is taken out and the coordinate position of the second pressed point is not detected, but the difference between the detected coordinate position and the coordinate position of the first pressed point is doubled, By adding to the coordinate position of the first pressed point, the coordinate position of the second pressed point can be obtained.

That is, it is possible to realize a control method of the input panel that can detect the coordinates of the second pressed point performed while the first pressing is continued.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 2 is an operation principle diagram showing another control method according to the present invention, and FIG. 3 is a flowchart showing another control method according to the present invention.

In FIG. 1, the control method of the input panel according to the present invention includes a pressing number determination step, a first coordinate recognizing step, and a second coordinate calculating step. If the pressing to be performed is the first pressing, the control is already performed. A flag of X = 0 indicating the first press is set in the apparatus.

After pressing, the contact / non-contact of the conductor film is detected, and if the conductor film is in contact, the number of presses is checked in the number-of-presses determination step, and the first press, that is, the flag of X = 0 is set. If X = 1, replace the flag with
The process proceeds to the Y coordinate reading step.

In the X coordinate reading step, a voltage in the X direction is applied to one conductive film through the electrode, and the X coordinate is read through the other conductive film and the electrode, and the read X coordinate is within a predetermined detection range. If there is, the process proceeds to the next step, and if it is out of the predetermined detection range, an NG alarm is output.

In the Y coordinate reading step, a voltage in the Y direction is applied to one conductive film via the electrode, and the Y coordinate is read via the other conductive film and the electrode, and the read Y coordinate is within a predetermined detection range. If there is, the process proceeds to the next step, and if it is out of the predetermined detection range, an NG alarm is output.

After reading the Y coordinate, the number of presses is checked. If the flag of X = 1 is set in the step of determining the number of presses, the coordinate position X ₁ Y ₁ of the first pressed point is stored and the coordinates are simultaneously stored. The position X ₁ Y ₁ is output to a host device or the like (not shown).

If there is a second press during the continuation of the first press, the number of presses is checked in the press count determining step as in the case of the first press, and the second press, that is, a flag of X = 1, stands up. If it is, replace it with the flag of X = 0 and the next X
The process proceeds to the Y coordinate reading step.

In the X coordinate reading step, a voltage in the X direction is applied to one conductive film through the electrode, and the X coordinate is read through the other conductive film and the electrode, and the read X coordinate is within a predetermined detection range. If there is, the process proceeds to the next step, and if it is out of the predetermined detection range, an NG alarm is output.

In the Y coordinate reading step, a voltage in the Y direction is applied to one conductive film via the electrode and the Y coordinate is read via the other conductive film and the electrode, and the read Y coordinate is within a predetermined detection range. If there is, the process proceeds to the next step, and if it is outside the predetermined detection range, an NG alarm is output.

After the reading of the Y coordinate, the number of presses is checked. If the flag of X = 0 is set in the step of determining the number of presses, the next correction value calculating step and the second coordinate calculating step are performed based on the read coordinates. The coordinate position X ₄ Y ₄ of the pressed point 2 is calculated.

That is, assuming that the read coordinates are X ₂ Y ₂ and the calculated correction value is X ₃ Y ₃ , in the correction value calculation step, X ₃ = (X ₂ −X ₁ ) × 2, Y ₃ = ( A correction value for calculating the coordinate position X ₄ Y ₄ of the second pressed point is obtained from the equation Y ₂ −Y ₁ ) × 2.

In the second coordinate calculation step, X ₄ = X ₁ +
A host device, in which the coordinate position X ₄ Y ₄ of the second pressed point is obtained by the formula of X ₃ , Y ₄ = Y ₁ + Y ₃ , and the calculated coordinate position X ₄ Y ₄ of the second pressed point is not shown. Etc., and returns to the start point.

In the correction value calculating step, X ₃ =
By making the formulas (X ₂ −X ₁ ) × n and Y ₃ = (Y ₂ −Y ₁ ) × n executable, for example, if n is greater than 2, the coordinate position X ₄ Y ₄ is pressed down second. It becomes far from the point, and the moving speed of the cursor or the like can be increased.

If the first press is released before the second press is performed, the flag of X = 1 is replaced with X = 0, thereby performing the press in the same manner as the conventional input panel control method. It is also possible to make it possible to read the coordinate position indicating the pressed point each time it is performed.

The above embodiment is a control method for obtaining a specific coordinate position of the second pressed point. As shown in FIG. 2A, the second pressed point P ₂ is changed to the first pressed point by application. P
_In some cases, it may be sufficient to be able to determine whether the area is inside or outside a predetermined area centered at ₁ .

In such a case, as shown in FIG.
A predetermined area ± around the pressing point P ₁ by pressing
sets a alpha, it can be confirmed that the coordinate position obtained by the second depressing is outside of the area ± alpha around the first depressing point P _1.

Referring to FIG. 3, another control method of the input panel according to the present invention includes a pressing number determination step, a first coordinate recognition step, and a coordinate comparison step. If the next pressing is the first pressing, the control is already performed. A flag of X = 0 indicating the first press is set in the apparatus.

After pressing, the contact / non-contact of the conductor film is detected, and if the conductor film is in contact, the number of presses is checked in the number-of-presses determination step, and the first press, that is, the flag of X = 0 is set. If X = 1, replace the flag with
The process proceeds to the Y coordinate reading step.

In the X coordinate reading step, a voltage in the X direction is applied to one conductive film through the electrode, and the X coordinate is read through the other conductive film and the electrode, and the read X coordinate is within a predetermined detection range. If there is, the process proceeds to the next step, and if it is out of the predetermined detection range, an NG alarm is output.

In the Y coordinate reading step, a voltage in the Y direction is applied to one conductive film via the electrode, and the Y coordinate is read via the other conductive film and the electrode, and the read Y coordinate is within a predetermined detection range. If there is, the process proceeds to the next step, and if it is out of the predetermined detection range, an NG alarm is output.

After reading the Y coordinate, the number of presses is checked, and if the flag of X = 1 is set in the step of determining the number of presses, the coordinate position X ₁ Y ₁ of the first pressed point is stored and the coordinates are simultaneously stored. The position X ₁ Y ₁ is output to a host device or the like (not shown).

The non-detection area centered on the first pressed point is
The setting range ± α to be set is, for example,
, For example, the coordinate position X of the first pressed point
₁Y ₁Is stored at the same time as the non-detection area X₁± α
And Y₁± α is set.

If there is a second press during the continuation of the first press, the number of presses is checked in the press count determining step as in the case of the first press, and the second press, that is, a flag of X = 1, stands up. If it is, replace it with the flag of X = 0 and the next X
The process proceeds to the Y coordinate reading step.

In the X coordinate reading step, a voltage in the X direction is applied to one conductive film via the electrode and the X coordinate is read via the other conductive film and the electrode, and the read X coordinate is within a predetermined detection range. If there is, the process proceeds to the next step, and if it is out of the predetermined detection range, an NG alarm is output.

In the Y coordinate reading step, a voltage in the Y direction is applied to one conductive film via the electrode, and the Y coordinate is read via the other conductive film and the electrode, and the read Y coordinate is within a predetermined detection range. If there is, the process proceeds to the next step, and if it is out of the predetermined detection range, an NG alarm is output.

After reading the Y coordinate, the number of presses is checked. If the flag of X = 0 is set in the step of determining the number of presses, the non-detection areas X ₁ ± α and Y ₁ ± α are set in the next coordinate comparison step. And the read coordinate positions X ₂ and Y ₂ are compared.

As a result of comparison with the non-detection area, the coordinate position X
If either one of Y ₂ and Y ₂ is in the non-detection area, the second
Is invalidated, and if both coordinate positions X ₂ and Y ₂ are outside the non-detection area, a signal indicating execution of the second pressing or the coordinate position is output.

When the second pressing is performed while the first pressing is continued, the resistance interposed between the two pressing points is short-circuited by the conductive film, and the first pressing point and the second pressing are performed. A voltage corresponding to a coordinate position intermediate to the point is taken out and the coordinate position of the second pressed point is not detected, but the difference between the detected coordinate position and the coordinate position of the first pressed point is doubled, By adding to the coordinate position of the first pressed point, the coordinate position of the second pressed point can be obtained.

That is, it is possible to realize a control method of the input panel which can detect the coordinates of the second pressed point performed while the first pressing is continued.

[0054]

As described above, according to the present invention, it is possible to provide a control method for an input panel capable of detecting the coordinates of a second pressed point performed while the first pressing is continued.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating a control method of an input panel according to the present invention.

FIG. 2 is an operation principle diagram showing another control method according to the present invention.

FIG. 3 is a flowchart showing another control method according to the present invention.

FIG. 4 is a schematic diagram illustrating a configuration of an input panel.

FIG. 5 is a diagram illustrating the operation principle of the input panel.

FIG. 6 is a flowchart showing a conventional control method.

Claims (3)

[Claims] A first pressing step of determining whether the pressing of the conductive film is a first pressing or a second pressing performed during the continuation of the first pressing; If so, a first coordinate recognition step of recognizing and storing the coordinate positions X ₁ , Y ₁ indicating the first pressed point, and if the pressed is the second pressed, calculating the correction values X ₃ , Y ₃ . A correction value calculating step and a coordinate position X ₄ , Y indicating the second pressed point
_And a second coordinate calculation step for calculating the coordinate position X obtained by the second pressing.
₂ , Y ₂ , and the coordinate positions X ₁ , Y ₁ and the coordinate positions X ₂ ,
The difference from Y ₂ is doubled to obtain correction values X ₃ and Y _{3. In the} second coordinate calculation step, the correction values X ₃ and Y ₃ are added to the coordinate positions X ₁ and Y ₁ , and the second coordinate calculation is performed. A coordinate position X ₄ , Y ₄ of a pressed point of the input panel. 2. The method according to claim 2, wherein the correction value calculating step includes:₁, Y
₁And coordinate position X_Two, Y _TwoIs multiplied by n and the correction value X_Three, Y_Three
In the second coordinate calculation step, the coordinate position X₁, Y₁The correction value X
_Three, Y_ThreeIs added to the coordinate position X_Four, Y_FourClaim 1
How to control the input panel. Determining whether the pressing of the conductive film is the first pressing or the second pressing performed during the continuation of the first pressing; determining whether the pressing is the first pressing; For example, the coordinate positions X ₁ and Y ₁ indicating the first pressed point are recognized and stored, and the non-detection area X ₁ ± ₁ is determined from the coordinate positions X ₁ and Y ₁ and the preset input range ± α.
a first coordinate recognition step of setting α, Y ₁ ± α, and if the press is a second press, the coordinate positions X ₂ , Y ₂ obtained by the second press are recognized, and the coordinate positions X ₂ , Y And a coordinate comparing step of comparing ₂ with the non-detection area X ₁ ± α, Y ₁ ± α. If the coordinate position X ₂ , Y ₂ is outside the non-detection area, the second
A method of controlling an input panel, wherein pressing of a button is enabled.