JP3522164B2 - Coordinate data acquisition error absorbing device, method and recording medium - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coordinate data acquisition error absorbing device, method and recording medium, and more particularly to coordinate data acquisition for determining input coordinates by determining whether there is a hardware error or a displacement due to input. The present invention relates to an error absorbing device, method and recording medium.

[0002]

2. Description of the Related Art Regarding a touch panel input device for obtaining a voltage value indicating a coordinate position of a touch panel at regular intervals, an example of a system by improving software is disclosed in Japanese Patent Laid-Open No. 11-1.
No. 02259.

This technique removes noise in accordance with not only the touch panel input speed (handwriting speed) but also the acceleration / deceleration of the touch panel input speed so that correct coordinate values can be acquired. Wear (hereinafter, H /
It does not correspond to the dispersion of the input coordinates due to the error (denoted as W).

Here, the error of H / W will be described.

For example, when inputting from a touch panel,
Although the coordinates (10, 10) are input, the coordinates detected by the touch panel are actually (11, 13) or (9, 12). This deviation of the coordinates is called "H / W error".

[0006]

However, the above-mentioned conventional technique has a problem in that it does not deal with variations in input coordinates due to H / W errors. So, for example,
When a certain point is touch-inputted, the displayed point is swayed in small steps due to the error of H / W, and the point does not stand still but fluctuates, and it appears as if it is flickering.

An object of the present invention is to provide a means for acquiring a correct input coordinate value corresponding to a variation in input coordinate due to an H / W error.

[0008]

A coordinate data acquisition error absorbing device of a first invention of the present application is a coordinate detecting means for reading coordinate data from a display screen section, and the coordinate detecting means reads this time.
With the coordinate data taken and the coordinate data traced back in the past
It is stored a data storage means for storing a previous decision coordinate data determined with the previous <br/> input coordinates, in the data storage means by a plurality of coordinate data and determining means comprising
The coordinate data read this time and the coordinates traced back in the past
A certain direction by comparing multiple coordinate data consisting of data
The maximum number of consecutive displacements in
With the coordinate data read this time, calculated for the inus direction
The displacement amount of the coordinate data is calculated from the difference of the previously determined coordinate data.
Obtained for the X and Y coordinates and continuously in the above-mentioned fixed direction
The maximum number of times of displacement in the positive and negative directions.
Large value and displacement of X coordinate and Y coordinate of the coordinate data
Compare the amount with the threshold value, and continuously displace in the certain direction.
The maximum number of positive and negative
The displacement amount of X coordinate and Y coordinate of the coordinate data is all
If it is within the threshold, the coordinate detecting means has read this time.
It is judged that the coordinate data is a hardware error, so
If not, the coordinate detection means reads the coordinate data read this time.
Data is determined to be displacement due to input, and hardware error
If there is a difference, it is stored in the data storage means.
Previously determined coordinate data previously determined by the determination means
If the input coordinates are confirmed and the displacement is due to input, this time
The input coordinate is the coordinate data read by the coordinate detecting means.
The determination means for confirming and the coordinate display means for displaying the input coordinates confirmed by the determining means on the display screen section are provided.

In the coordinate data acquisition error absorbing device according to the second invention of the present application, in the first invention, the judging means is based on the judgment.
A plurality of coordinate data stored in the data storage means.
The data is the coordinate data read by the coordinate detection means this time.
Data that is traced back to the past.
The feature is that the number of pieces of coordinate data for a certain amount is specified externally .

Absorption of coordinate data acquisition error of the third invention of the present application
The method is to store the coordinate data read from the display screen.
However, the coordinate data read this time and the coordinates traced back in the past
A certain direction by comparing multiple coordinate data consisting of data
The maximum number of consecutive displacements in
With the coordinate data read this time, calculated for the inus direction
The displacement amount of the coordinate data is calculated from the difference of the previously determined coordinate data to the X coordinate.
Obtained for the mark and Y coordinate, and continuously in the above-mentioned fixed direction
Maximum number of displacements in positive and negative directions
And the amount of displacement of the X and Y coordinates of the coordinate data
Compared with the threshold value, the number of times
Maximum number of plus and minus numbers and the above
The displacements of the X and Y coordinates of the coordinate data are all threshold
If it is within the value, the coordinate data read this time is hardware
It is determined that it is an error of and adopts the previously determined coordinate data,
The number of times of continuous displacement in the fixed direction and the positive direction and
And the maximum value in the minus direction and the X coordinate of the coordinate data
And either of the Y coordinate displacement amount must be within the threshold value.
For example, the coordinate data read this time is the displacement due to input.
The coordinate data that is judged and read is adopted as the current coordinate data.
Stored as previously determined coordinate data and used
Data is displayed on the display screen section.
It

The recording medium of the fourth invention of the present application is a display screen section.
Storing process to store the coordinate data read from
Coordinate data read and coordinate data traced back in the past
Comparing multiple coordinate data consisting of
The maximum value of the number of times
The maximum number of displacements required for the direction and the reading this time
Coordinate data from the difference between the coordinate data
Displacement amount processing for obtaining the displacement amount of the X coordinate and the Y coordinate
And the plus of the number of consecutive displacements in the fixed direction
Direction and minus maximum value and the coordinate data
Threshold to compare displacement amount of X and Y coordinates with threshold value
Value comparison processing and the number of consecutive displacements in the certain direction
Positive and negative maximum values and the seat
The displacements of the X and Y coordinates of the standard data are all threshold values
If it is inside, the coordinate data read this time is hardware
H that adopts the previously determined coordinate data after determining that there is an error
W determination processing and the number of consecutive displacements in the certain direction
Maximum value in plus direction and minus direction and the coordinates
Either the X or Y displacement of the data
If it is not within a certain value, the coordinate data read this time can be input.
This time, the coordinate data read after determining that the displacement is
Used as coordinate data and stored as previously determined coordinate data
Input displacement judgment processing and display of adopted coordinate data
Display processing to be displayed on the screen, and execution on the computer
It is characterized in that the program for recording is recorded .

[0012]

[0013]

[0014]

[0015]

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION According to the method of absorbing an error in coordinate data acquisition (filtering by direction amount) of the present invention, whether the coordinate data read from the H / W is an error of H / W or a displacement by input. Is determined to suppress variations in the data read from the H / W.

For example, when a point on the touch panel is touch-input, if the point for displaying the touch position fluctuates due to an error of H / W, the fluctuation can be suppressed by the present invention.

A first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of the first embodiment of the present invention.

Referring to FIG. 1, the coordinate data acquisition error absorbing apparatus of the present invention is a computer 100 and a display screen section 1.
10, a coordinate detection means 120 and a coordinate display means 130.

The computer 100 operates under program control and includes a data storage means 101 and a determination means 102.

The data storage means 101 is the coordinate detection means 1
The coordinate data read by 20 is stored. The data storage means 101 accumulates a plurality of coordinate data traced back in the past including the currently read data. A fixed value may be set as to how far back the coordinate data should be accumulated, or the coordinate data may be specified from the outside at the time of initial setting. The data storage means 101 also stores the previous coordinate data determined by the determination means 102.

The determination means 102 is the data storage means 101.
It is determined whether the coordinate data read by the coordinate detecting unit 120 is an H / W error or a displacement due to input, based on the plurality of coordinate data stored in. Determination means 10
In 2, the number of times of displacement in a certain direction and the amount of displacement of coordinate data are calculated by comparing a plurality of coordinate data, and compared with a threshold value to determine whether the error is H / W error or displacement due to input. judge.

The determination result of the determination means 102 is H / W.
If the error is, the input coordinate does not move and remains stationary, and the coordinate data of the previously determined coordinate stored in the data storage unit 101 is adopted.

When the determination result by the determination means 102 is the displacement due to the input, the coordinate data read by the current coordinate detection means 120 is adopted as the current coordinate data. The input coordinates determined to be the coordinate data of the displacement due to the input by the determination unit 102 this time are stored as the previous coordinate data determined by the determination unit 102 (hereinafter referred to as the previously determined coordinate data) for the next determination. It is passed to the means 101. Further, the coordinate display means 13 displays the coordinate data of the input coordinates determined as the coordinate data of the displacement due to the input.
Pass to 0.

The display screen section 110 has a coordinate display means 130.
Display coordinates from. In addition, the display screen unit 110 can input coordinate data by operating the display screen unit 110 such as a touch, and the input coordinate data is coordinate detected through an A / D converter (not shown). Means 1
Detected by 20.

The coordinate detecting means 120 includes a display screen section 110.
The coordinate data input from the device is read via an A / D converter (not shown) and passed to the data storage means 101.

The coordinate display means 130 causes the display screen 110 to display the coordinate data passed from the determination means 102.

Next, the operation of the first embodiment of the present invention will be described in detail with reference to FIGS. 1, 2 and 3.

FIGS. 2 and 3 are flowcharts of the judging means 102.

In the explanation, the coordinate data read this time by the coordinate detecting means 120, that is, the data storing means 10
The coordinate data stored most recently by 1 is (xn, y
n), the coordinate data stored in the oldest by the data storage unit 101 is (x1, y1), the previously determined coordinate data previously determined by the determination unit 102 is (xp, yp),
Shall be represented.

Referring to FIG. 2, first, as initialization processing, a displacement counter (ic) in the plus direction, a displacement counter (dc) in the minus direction, and a maximum value (mic) of the number of consecutive displacements in the plus direction. And clear the maximum value (mdc) of the number of consecutive displacements in the negative direction (ic = 0, dc = 0, mic = 0, mdc = 0) (step A1 in FIG. 2).

A plurality of continuous XY coordinate data (x _i , y _i ) ( _i = 1, 1) stored in the data storage means 101.
, N) and the previously determined coordinate data (xp, yp) are obtained. A plurality of continuous XY coordinate data (x _i , y _i ) ( _i
= 1, ..., N) is the coordinate data traced back to this time and the past, and the number of traces traced back to the past is predetermined (step A2).

Then, in subsequent steps A4 to A21,
With respect to the X coordinate data, all of the adjacent coordinate data (x _i , x _{i + 1} ) among the plurality of coordinate data are compared.

Regarding the X coordinate, the adjacent coordinate data (x _i , x _{i + 1} ) are compared (x _{i + 1} −x _i =?). If the comparison result is a displacement in the positive direction (> 0), the process proceeds to step A5; if it is a displacement in the negative direction (<0), the process proceeds to step A10; otherwise, the process proceeds to step A15. To each (step A4).

When the displacement is in the plus direction, the displacement counter (ic) in the plus direction is incremented by 1 (ic = i
c + 1) (step A5).

If it has been displaced by one coordinate in the minus direction (dc ≠ 0), the process branches to step A7, and if not, the process branches to step A21 (step A6).

When it is displaced in the minus direction in step A6, it is judged whether or not the number of displacements in the minus direction is the maximum so far (dc> mdc). If it is the maximum, the process branches to step A8, and if not, the process branches to step A9 (step A7).

If the number of displacements in the minus direction has been the maximum so far in step A7, the maximum value (mdc) of the number of displacements in the minus direction is updated (mdc = dc) (step A8).

The displacement counter (dc) in the minus direction is cleared (dc = 0) (step A9).

If the displacement is in the negative direction in step A4, the displacement counter (dc) in the negative direction is incremented by 1 (dc = dc + 1) (step A10).

If it has been displaced by one coordinate in the plus direction (ic ≠ 0), the process branches to step A12, and if not, the process branches to step A21 (step A11).

When the displacement is in the plus direction in step A11, it is determined whether or not the number of displacements in the plus direction is the maximum so far (ic> mic). If it is the maximum, the process branches to step A13, and if not, the process branches to step A14 (step A12).

If the number of displacements in the plus direction has been the maximum at step A12, the maximum value (mic) of the number of displacements in the plus direction is updated (mic = ic) (step A13).

The displacement counter (ic) in the plus direction is cleared (ic = 0) (step A14).

If it is not displaced in step A4, it is judged whether or not the number of displacements in the plus direction is the maximum so far (ic> mic). If it is maximum, the process proceeds to step A16, otherwise. To step A17 (step A15).

If the number of displacements in the plus direction has been the maximum at step A15, the maximum value (mic) of the number of displacements in the plus direction is updated (mic = ic) (step A16).

The displacement counter (ic) in the plus direction is cleared (ic = 0) (step A17).

It is judged whether or not the number of displacements in the minus direction is the maximum so far (dc> mdc), and if it is the maximum, the process goes to step A19, and if not, step A2.
It branches to 0 (step A18).

When the number of displacements in the minus direction is the maximum so far in step A18, the maximum value (mdc) of the number of displacements in the minus direction is updated (mdc = dc).
(Step A19).

The displacement counter (dc) in the minus direction is cleared (dc = 0) (step A20).

With respect to the X coordinate data, if all the comparison processing of the adjacent coordinate data is completed, the process branches to step A22 in FIG. 3, and if not, the process branches to step A4 (step A21).

It is judged whether or not the number of displacements in the plus direction is the maximum so far (ic> mic), and if it is the maximum, the process goes to step A23. If not, the process goes to step A24.
(Step A22 in FIG. 3).

If the number of displacements in the plus direction has been the maximum so far in step A22, the maximum value (mic) of the number of displacements in the plus direction is updated (mic = ic) (step A23).

It is judged whether or not the number of times of displacement in the minus direction is the maximum so far (dc> mdc), and if it is the maximum, the process goes to step A25. If not, the process goes to step A2.
It branches to 6 (step A24).

When the number of displacements in the minus direction is the maximum so far in step A24, the maximum value (mdc) of the displacements in the minus direction is updated (mdc = dc).
(Step A25).

Clear counters ic and dc (ic =
0, dc = 0) (step A26).

Subsequently, with respect to the Y coordinate, the same processing as the processing at the X coordinate (steps A4 to A25) is performed (step A27).

The newest coordinate data (x
n) and the previously determined coordinate data (xp) difference absolute value (d
x) is calculated (dx = | xn−xp |). Further, the absolute value (dy) of the difference between the most recent Y coordinate data (yn) and the previously determined coordinate data (yp) is calculated (dy =
| Yn-yp |). At this point, the maximum value of the number of consecutive displacements in the plus direction (mi
c), the maximum value of the number of consecutive displacements in the negative direction (mdc), the displacement amount of the X coordinate data (dx), and the displacement amount of the Y coordinate data (dy) (step A2).
8).

The maximum value of the number of displacements in the plus direction (mi
c) and the maximum number of negative displacements (mdc)
If the displacement amount (dx) of the X coordinate data and the displacement amount (dy) of the Y coordinate data are all within the threshold values, it is determined that there is an error in H / W, and if not, in step A30. It is determined that the displacement is due to input, and the process branches to step A31 (step A29).

If there is an error in H / W at step A29, the input coordinates do not move and remain stationary. Therefore, the previously determined coordinate data (xp, yp) is adopted and the process ends (step A30).

If the displacement is an input displacement in step A29, the current coordinate data (xn, yn) is adopted and the process is terminated (step A31).

Further, a more specific description will be given with reference to FIG.

FIG. 4 is a diagram for explaining the operation of the first embodiment of the present invention.

As shown in FIG. 4, the data storage means 10 detected from the display screen section 110 by the coordinate detection means 120.
Data for 5 coordinates is used as the coordinate data stored in 1, and the following two cases are considered. In the case of pattern 1, the X coordinate (50, 52, 51, 53, 49) and the Y coordinate (70, 69, 71, 67, 68) are used, and the pattern 2
In the case of, the X coordinate (50, 52, 51, 53, 49),
It is the Y coordinate (70, 69, 71, 74, 78). The previously determined coordinate data (xp, yp) stored in the data storage means 101 is (51, 72). Also, XY
In both of the coordinates, the threshold of the maximum number of consecutive displacements in the plus direction (mic) and the maximum number of consecutive displacements in the minus direction (mdc) is "2", X
The threshold value of the displacement amount (dx) of the coordinate data and the displacement amount (dy) of the Y coordinate data is “5”.

First, consider the case of pattern 1. In step A4 of FIG. 2, the first and second values of the X coordinate are compared. In this case, since it is 50 and 52, the displacement is in the plus direction, and the process proceeds to step A5, and the displacement counter (ic) in the plus direction is incremented by 1 (ic = 1). At step A6, since it is not displaced in the minus direction (1
Proceed to step A21 (for the second comparison). Since the comparison of the X coordinate data has not been completed, the process proceeds to step A4.

When the second and third values of the X coordinate are compared with each other, they are 52 and 51. Therefore, the displacement is in the negative direction, and the process proceeds to step A10, and the counter (dc) in the negative direction is incremented by 1 (dc = 1). . In step A11, the displacement was made in the plus direction one time before, so step A12
And the maximum number of displacements in the positive direction is (i
c (= 1)> mic (= 0)) In step A13, the maximum value of the number of displacements in the plus direction is updated (mic = 1), and in step A14, the counter in the plus direction is cleared (ic = 0). Since the comparison of the X coordinate data has not been completed, the process proceeds to step A4.

When the third and fourth values of the X coordinate are compared with each other, they are 51 and 53. Therefore, the displacement is in the plus direction, and the process proceeds to step A5, and the counter (i
Increment c) by 1 (ic = 1). At step A6, since the displacement was made in the minus direction one time before, the process proceeds to step A7, and the number of displacement in the minus direction is the maximum (dc
(= 1)> mdc (= 0)) In step A8, the maximum value of the number of displacements in the negative direction is updated (mdc = 1), and in step A9, the counter in the negative direction is cleared (d).
c = 0). Since the comparison of X coordinate data is not completed,
Go to step A4.

When the fourth and fifth values of the X coordinate are compared with each other, they are 53 and 49, so that the displacement is in the negative direction and the process proceeds to step A10, where the counter (dc) in the negative direction is incremented by 1 (dc = 1). . Next, step A11
Since it was displaced in the plus direction one time before, step A
12, the number of displacements in the plus direction is not the maximum (ic (= 1) = mic (= 1)), so the process proceeds to step A14, and the counter in the plus direction is cleared (ic =
0).

At step A21, since the comparison of the X coordinates is completed, the process proceeds to step A22 in FIG. Since the number of displacements in the plus direction is not the maximum (ic (= 0) <mic
(= 1)) The process proceeds to step A24, and the number of displacements in the negative direction is not the maximum ((dc (= 1) = mdc (=
1)) Go to step A26, counter (ic, dc)
Is cleared (ic = 0, dc = 0).

Subsequently, similar processing is performed for the Y coordinate. Comparing the first and second values for the Y coordinate,
Since they are 70 and 69, the displacement is in the negative direction, the counter (dc) is incremented by 1 (dc = 1), and since ic = 0, the next comparison is performed.

Comparing the second and third values of the Y coordinate, they are 69 and 71, so that the displacement is in the plus direction and the counter (ic) is incremented by 1 (ic = 1). Although it was displaced in the minus direction one time before, since the number of times of displacement in the minus direction at present is not the maximum (dc (= 1) = md
c (= 1)) The maximum value (mdc) is not updated, and the counter (dc) in the minus direction is cleared (dc = 0).

Comparing the third and fourth values for the Y coordinate, since they are 71 and 67, the displacement is in the negative direction, and the counter (dc) is incremented by 1 (dc = 1). It was displaced in the plus direction one time ago, but the current number of displacements in the plus direction is not the maximum (ic (= 1) = mic
(= 1)) The maximum value (mic) is not updated, and the counter (ic) in the plus direction is cleared (ic = 0).

Comparing the 4th and 5th values for the Y coordinate, they are 67 and 68. Therefore, the displacement is in the plus direction, and the counter (ic) is incremented by 1 (ic = 1). Although it was displaced in the minus direction one time before, since the number of times of displacement in the minus direction at present is not the maximum (dc (= 1) = md
c (= 1)) The maximum value (mdc) is not updated, and the counter (dc) in the minus direction is cleared (dc = 0).

At step A21, since the comparison of the Y coordinates is completed, the process proceeds to step A22. Since the number of displacements in the plus direction is not the maximum (ic (= 1) = mic (=
1)) Proceed to step A24, and the number of times of displacement in the negative direction is not the maximum (dc (= 0) <mdc (= 1)).
Go to step A28.

At step A28, the displacement amount (dx, dy) of the coordinate data is calculated for the X coordinate and the Y coordinate (dx =
2, dy = 4).

Then, in step A29, the maximum value of the number of displacements in the plus direction (mic = 1), the maximum value of the number of displacements in the minus direction (mdc = 1), the displacement amount of the X coordinate (d)
x = 2), the displacement amount of the Y coordinate (dy = 4) and the threshold value are compared. Since the threshold value for the number of displacements in the same direction is "2" and the threshold value for the displacement amount is "5", it is determined that there is an error in H / W, the input coordinates are regarded as stationary, and the previous determination is made. The previous coordinate data (xp, y determined by the means 102)
(51, 72) which is p) is adopted, and the processing is ended.

Next, consider the case of pattern 2. The X coordinate is the same as in the case of pattern 1, and step A
At the time of 26, the maximum value in the plus direction becomes 1 and the maximum value in the minus direction becomes 1. On the other hand, regarding the Y coordinate, the first and second comparisons, the second and third comparisons are the same as those in the pattern 1, but the third and fourth comparisons are 71 and 74, 4 and 4, respectively.
In the second and fifth comparisons, both 74 and 78 result in displacement in the positive direction, and as a result, displacement in the positive direction occurs three times in a row (ic = 3). At step A22, the number of displacements in the plus direction is the maximum so far (ic (=
3)> mic (= 1)), the maximum value (mic) is updated (mic = 3). In the negative direction, the number of displacements (dc) is not the maximum value (dc (= 0) <mdc
(= 1)), not updated.

At step A28, the displacement amount (dx, dy) of the coordinate data is calculated for the X coordinate and the Y coordinate (dx =
2, dy = 6).

Then, in step A29, the maximum value of the number of displacements in the plus direction (mic = 3), the maximum value of the number of displacements in the minus direction (mdc = 1), the displacement amount of the X coordinate (d)
x = 2), the displacement amount of the Y coordinate (dy = 6) and the threshold value are compared. Since the threshold of the number of displacements in the same direction is "2" and the threshold of the amount of displacement is "5", the maximum value of the number of displacements becomes larger than the threshold (mic (= 3)> The threshold value “2”), the displacement amount (dy) of the coordinate data becomes larger than the threshold value (dy (= 6)> threshold value “5”). As a result, it is determined that the displacement is due to input, the new coordinate data (xn, yn) (49, 78) of this time is adopted, and the process ends.

In this way, it is possible to suppress variations in the data read from the H / W.

Next, a second embodiment of the present invention will be described with reference to the drawings.

FIG. 5 is a block diagram of the second embodiment of the present invention.

Referring to FIG. 5, the coordinate data acquisition error absorbing apparatus according to the present invention includes a computer 100 and a display screen section 1.
10, a coordinate detection means 120 and a coordinate display means 130. The computer 100 operates under program control, and has a data storage unit 101 and a determination unit 20.
Including 2 and.

In the configuration of the second embodiment, the determining means 102 of the configuration of the first embodiment is replaced with the determining means 202. Therefore, here, the determination means 202 different from the first embodiment will be described.

The determination means 202 is the data storage means 101.
It is determined whether the coordinate data read by the coordinate detecting unit 120 is an H / W error or a displacement due to input, based on the plurality of coordinate data stored in. Determination means 20
In 2, the number of times of displacement in a certain direction and the amount of displacement of coordinate data are calculated by comparing a plurality of coordinate data, and compared with a threshold value to determine whether the error is H / W error or displacement due to input. judge. In this case, the moving average method is used to calculate the coordinate data read by the coordinate detecting means 120 this time,
Judge by comparing with a threshold value.

The determination result by the determination means 202 is H / W.
If the error is, the input coordinate does not move and remains stationary, and the coordinate data of the previously determined coordinate stored in the data storage unit 101 is adopted. .

When the determination result of the determination means 202 is the displacement due to the input, the value obtained by performing the moving average method on the coordinate data read by the coordinate detection means 120 this time (hereinafter, the moving average input coordinate data). Is used as the coordinate data of this time. The moving average input coordinate data is passed to the data storage unit 101 as the previous coordinate data determined by the determination unit 202 (previously determined coordinate data) for the next determination. Further, the moving average input coordinate data is passed to the coordinate display means 130.

Next, the operation of the second embodiment of the present invention will be described in detail with reference to FIG. 2, FIG. 3, FIG. 5, FIG. 6 and FIG.

FIGS. 6 and 7 are flowcharts of the judging means 202.

In the explanation, the coordinate data read this time by the coordinate detecting means 120, that is, the data storing means 10
The coordinate data stored most recently by 1 is (xn, y
n), the coordinate data stored in the earliest by the data storage unit 101 is (x1, y1), the previously determined coordinate data previously determined by the determination unit 202 is (xp, yp),
Express. The previously determined coordinate data (xp, yp) is a value calculated by the moving average method.

Referring to FIGS. 6 and 7, step B
Steps 1 to B27 are the same as steps A1 to A27 in FIGS. 2 and 3 in the first embodiment.

In step B28 of FIG. 7, the coordinate data (xn, yn) read this time by the coordinate detecting means 120.
Is calculated by the moving average method. The value calculated by the moving average method is represented as (xr, yr).

In step B29, the absolute value (dx) of the difference between the value (xr) calculated by the moving average method of the X coordinate data and the previously determined coordinate data (xp) is obtained (dx = | xr).
-Xp |). Also, the absolute value (dy) of the difference between the value (yr) calculated by the moving average method of the Y coordinate data and the previously determined coordinate data (yp) is obtained (dy = | yr−yp |). At this point, the maximum number of consecutive displacements in the plus direction (mic), the maximum number of consecutive displacements in the minus direction (mdc), and the displacement amount of the X coordinate data in both the XY coordinates. (Dx) and the displacement amount of the Y coordinate data (d
y) is obtained.

At step B30, the maximum value of the number of displacements in the plus direction (mic), the maximum value of the number of displacements in the minus direction (mdc), and the displacement amount of the X coordinate data (dx).
And the displacement amount (dy) of the Y coordinate data are all within the threshold value, it is determined that there is an error of H / W and step B31.
If not, it is judged as displacement due to input and step B
Branch to 32.

At step B31, H at step B30
In the case of an error of / W, the input coordinate does not move and is in a stationary state, so the previously determined coordinate data (xp, yp) is adopted and the process ends.

In step B32, if the displacement is the input in step B30, (xr, yr) is adopted as the current coordinate data, and the process ends.

In this way, it is possible to suppress variations in the data read from the H / W.

In the above-described embodiment of the present invention, a program for executing the processing operation of the coordinate data acquisition error absorbing device is stored as data in a storage device (not shown) such as a magnetic disk or an optical disk. Then, the stored data is read out and used to operate the coordinate data acquisition error absorbing device. As described above, by recording the data for operating the coordinate data acquisition error absorbing device according to the present invention in the recording medium and installing this recording medium, the function of the coordinate data acquisition error absorbing device can be realized.

[0100]

The effect of the present invention is to suppress the fluctuation of the point displaying the input position due to the error of H / W.

The reason is that it is judged whether there is an error in H / W or a displacement due to input. If there is an error in H / W, the same coordinate data as one coordinate before is displayed, and if the displacement is due to input. Is provided with a means for displaying the read current coordinate data.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a first embodiment of the present invention.

FIG. 2 is a diagram showing a flowchart (part 1) of a determination means 102.

FIG. 3 is a diagram showing a flowchart (No. 2) of the determination means 102.

FIG. 4 is a diagram explaining an operation of the first embodiment of the present invention.

FIG. 5 is a configuration diagram of a second embodiment of the present invention.

FIG. 6 is a diagram showing a flowchart (part 1) of a determination means 202.

FIG. 7 is a diagram showing a flowchart (part 2) of the determination means 202.

[Explanation of symbols]

100 computers 101 data storage means 102 determination means 110 Display screen section 120 coordinate detection means 130 coordinate display means 202 determination means

Claims (4)

(57) [Claims] 1. A coordinate detecting means for reading coordinate data from a display screen portion, and coordinate data and an error information read by the coordinate detecting means this time.
A plurality of coordinate data consisting of the coordinate data traced back to the last time and the previous time when it was determined as the last input coordinate by the judging means.
Data storage means for storing the determined coordinate data , and the currently read position stored in the data storage means.
Comprised of standard data and coordinate data traced back in the past
Compare multiple coordinate data and move continuously in a certain direction.
The maximum number of times
Coordinate data read this time and the previously determined coordinates
The displacement amount of the coordinate data is calculated from the difference of the data as X coordinate and Y coordinate.
Number of continuous displacements in the above-mentioned fixed direction obtained from the target
Positive and negative maximum values and the seat
The displacement amount of the X coordinate and Y coordinate of the standard data is compared with the threshold value.
In comparison, the plus of the number of continuous displacement in the above-mentioned fixed direction
Direction and minus maximum value and the coordinate data
If the displacements of the X and Y coordinates of
For example, the coordinate data read this time by the coordinate detection means is
Hardware error, if not,
The coordinate data read this time by the mark detection means is changed by input.
If there is a hardware error,
The determination hand previously stored in the data storage means is stored.
Confirm the previously determined coordinate data determined in the column as the input coordinate
However, if the displacement is due to input, this time the coordinate detection
A coordinate data acquisition error absorbing device, comprising: a determination unit that determines the coordinate data read by the step as an input coordinate; and a coordinate display unit that displays the input coordinate determined by the determination unit on the display screen unit. 2. The plurality of coordinate data stored in the data storage means on which the determination means makes a determination are the coordinate data read this time by the coordinate detection means and the coordinate data traced back in the past. , and the said number of minute coordinate data retroactively the coordinate data acquisition error absorbing device according to claim 1, characterized in that the externally specified. 3. The coordinate data read from the display screen is stored, and a plurality of coordinate data consisting of the coordinate data read this time and the coordinate data traced back in the past are compared and continuously displaced in a certain direction. Maximum number of times plus direction and minor
Calculated for Direction, determined <br/> Me a displacement of the coordinate data from the difference between the coordinate data and the previous determination coordinate data read this time with respect to the X and Y coordinates, displaced continuously in the predetermined direction Positive direction of the number of times and
And the maximum value in the minus direction and the X coordinate of the coordinate data
And the amount of displacement of the Y coordinate is compared with a threshold value, and the number of consecutive displacements in the fixed direction and the positive direction and
And the maximum value in the minus direction and the X coordinate of the coordinate data
And the coordinate data amount of displacement of all analyzed from the points currently read <br/> Within threshold Y coordinate adopts previous decision coordinate data is determined to be the error in hardware, in succession to said predetermined direction the positive direction of the number of displaced Te Hoyo
And the maximum value in the minus direction and the X coordinate of the coordinate data
If either of the displacement amounts of the Y coordinate and the Y coordinate is not within the threshold value, the coordinate data read this time is determined to be the displacement due to input, and the read coordinate data is adopted as the coordinate data of this time and stored as the previously determined coordinate data. Then, the adopted coordinate data is displayed on the display screen section. 4. A storage process for storing coordinate data read from the display screen section, and a plurality of coordinate data composed of the coordinate data read this time and the coordinate data traced back in the past are compared and continuously processed in a fixed direction. plus direction and minus the maximum value of the number of displaced Te
And displacement times the maximum value processing for determining relative scan direction, determined <br/> Mel displacement process from the difference between the coordinate data and the previous determination coordinate data read this time the displacement of the coordinate data to the X-coordinate and Y-coordinate And the number of times of continuous displacement in the fixed direction and the positive direction and
And the maximum value in the minus direction and the X coordinate of the coordinate data
And a threshold value comparison process for comparing the displacement amount of the Y coordinate with a threshold value, and a plus direction of the number of consecutive displacements in the certain direction.
And the maximum value in the minus direction and the X coordinate of the coordinate data
And HW determination process employing a previous decision coordinate data determined and the coordinate data amount of displacement that are analyzed from the points currently read <br/> if all the threshold Y coordinate is the error of the hardware, the constant The number of consecutive displacements in the positive direction and
And the maximum value in the minus direction and the X coordinate of the coordinate data
If either of the displacement amount of Y coordinate and Y coordinate is not within the threshold value, the coordinate data read this time is determined to be the displacement due to the input and the read coordinate data is adopted as the coordinate data of this time and stored as the previously determined coordinate data. A recording medium for recording a program for causing a computer to execute the input displacement determination process for performing the display process, and the display process for displaying the adopted coordinate data on the display screen unit.