JPH05165569A - Data input device - Google Patents

Abstract

PURPOSE:To provide a data input device capable of preventing operating environment from worsening due to the change of an angle of parallax. CONSTITUTION:When the power source 15 of the data input device is applied, correction data TABX, TABY in the X and Y axial directions are inputted to correct 16 an error, and the input positions of the data can be corrected based on such error correction. When it is judged that corrected coordinates are outside an ordinary recognition range 13 but within a correction recognition range 14 slightly wider than that (YES in step #23, NO in #29, #31), the variables TABX, TABY are updated based on distance between the input position and the ordinary recognition range 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is like a tablet,
The present invention relates to a data input device in which an operator inputs data while looking at a display on a screen, and particularly to a data input device which is not affected by parallax of the operator during data input.

[0002]

2. Description of the Related Art A conventional data input device is shown in FIG. A case where the operator inputs data using the tablet 21 will be described with reference to FIG. 6. Tablet 21
In, the normal glass 22 is placed on the display surface 23. When the operator looks at the tablet 21 from diagonally above, the display position of the predetermined data is at the position indicated by A on the display surface 23, but because of the parallax as shown in the figure, the operator displays the tablet at the display position. Appears to be in position B above 22. Thus, an error due to the parallax angle as shown in the figure occurs between the actual position A that the operator wants to input and the position B that the operator recognizes.

Therefore, conventionally, in a data input device such as a tablet, the parallax angle correction data of the tablet is updated only when the user turns on the power for the first time after purchase or when the user selects the parallax angle correction function. Then
The same correction data was used in all usage situations unless the user updated it.

[0004]

The parallax angle of the tablet 21 changes depending on the positional relationship between the user and the tablet 21. For example, the parallax angle is naturally different between when operating on a desk and when operating while standing. In the past, since constant correction data was used regardless of such changes in the usage situation, depending on the usage situation, the input data may be erroneously recognized even though the user has correctly touched the input data display. There were many operational problems. In addition, unlike the electromagnetic induction type tablet, the resistive film type tablet that is often used because of its low cost may not be able to display the cursor in a non-contact state, so the parallax angle may cause an operational injury. Many. This problem is remarkable especially in tablets using a large-screen display device.

The present invention has been made to solve the above problems, and prevents deterioration of the operating environment due to a change in parallax angle without forcing the user to input data for correcting parallax angle. It is an object of the present invention to provide a data input device that can be used.

[0006]

A data input device according to the present invention, in which an operator touches a display on a screen to input the displayed data, a data input device is provided when the operator sees the display on the screen. Depending on the position, the first position on the screen due to parallax and the second position below the screen where the display actually exists
When the operator touches the screen directly above the second position, the data of the display unit is input, and the second position and the vicinity of the second position are included. When the operator recognizes that the correction recognition area and the position on the screen touched by the operator are included in the correction recognition area, and whether the input existence determination means touches the correction recognition area by the operator , And correction means for correcting the shift due to parallax according to the touch position.

[0007]

The operation of the present invention will be described with reference to FIG. For example, in a data input device such as a tablet,
The operation is mainly the cursor keys and buttons displayed on the screen,
This is done by touching an icon (hereinafter referred to as a display object). As the parallax angle increases,
The touched position deviates from the position of the display object. On the other hand, when the screen is erroneously touched due to an operation error, the difference between the touched position and the position of the display object is larger than that due to the parallax angle.

Therefore, a corrected recognition range 32 is set around the normal recognition range 31 for each display object. As long as the usage situation does not change, the position touched by the operator is included in the normal recognition range 31, and in the case of an operation error, it is often outside the corrected recognition range. Therefore, when the correction recognition range 32 is touched (when the input presence / absence determining unit determines that the operator touches the correction recognition region), it is determined that the parallax angle changes due to the change in the usage situation, and the correction unit Thus, in addition to the normal processing, the parallax angle correction data is updated based on the distance between the normal recognition range 31 and the touch position.

[0009]

Embodiments of the present invention will be described in detail below.

FIG. 1 is a block diagram showing a main part of a data input device according to the present invention. With reference to FIG. 1, the data input device according to the present invention includes an input panel 12, and the input panel 12 is provided with a display object 13 and a correction recognition range 14 around the display object 13. The input panel 12 is a CP that controls the entire data input device via the I / F 17.
It is connected to U11. A power switch 15 and a correction function key 16 for starting correction by parallax are connected to the CPU 11 via an I / F 17.

Next, the operation of the present invention will be described with reference to FIGS. 3 and 4. In order to correct the parallax angle as described above, the electronic device equipped with the input panel 12 operates when the power switch 15 is first turned on after the device is purchased and when the user selects the correction function button 16. Initialize the tablet. As shown in FIG. 3, a cross mark is first displayed on the screen (# 11), and the user is prompted to touch the center of the cross. Next, when the user touches the tablet (# 13), if the position is within the allowable range (a position not far from the normal recognition range) (# 1
5 is YES), the distance between the center position of the cross displayed on the screen and the position touched by the user is represented by the variable T in the X direction.
The variable ABY is registered in ABX and the variable TABY in the Y direction (# 17). The subsequent processing by the tablet is executed after correcting the touch position based on the variables TABX and TABY.

That is, it becomes as follows. X coordinate processed by software = X coordinate actually touched + T
Y coordinate processed by ABX software = Y coordinate actually touched + T
ABY Next, referring to FIG. 4, the correction variable TABX according to the present invention,
A method of automatically updating TABY will be described.

When the user touches the screen to start tablet processing, the touch position is first set to the variable TABX,
It is corrected by TABY (# 21).

When the corrected coordinates are not included in the normal recognition range 31 + correction recognition range 32 as shown in FIG. 2,
Process as an operation error by the user (NO in # 23, # 2
5, # 27).

If it is within the normal recognition range 31, it is determined that the correction variable is an appropriate value and the subsequent processing is involved (YES in # 23 and # 29).

The problem here is that the coordinates are in the correction recognition range 32. In this case, although the user touches an appropriate position, the current value of the correction variable cannot be properly corrected due to the variation of the parallax angle. Therefore, in this case (YES in # 23, # 29
If NO), the variables TABX and TABY are updated (corrected) based on the distance from the normal recognition range 31.

Next, referring to FIG. 5, specific correction data T
A method of calculating ABX and TABY will be described.

When the user touches the position indicated by a black circle in FIG. 5A, the correction data is obtained by the following equation.

TABX = TABX + ΔX TABY = TABY + ΔY However, if either the X coordinate or the Y coordinate of the touched position is within the normal recognition range 31, the correction data is not updated.

When the input data is at the position shown in FIG. 5 (B), the correction data is updated by the following equation.

TABX = TABX + ΔX TABY = TABY (not updated)

[0022]

As described above, according to the present invention, when the operator gives an instruction to input data in the correction recognition area, the shift due to the parallax is corrected according to the position. Therefore, since the correction is automatically performed when the parallax angle changes due to a change in the usage environment, the user can perform a comfortable operation in any usage situation without being aware of the change in the parallax angle. As a result, without forcing the user to input data for parallax angle correction,
It is possible to provide a data input device that can prevent deterioration of the operating environment due to a change in parallax angle.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main part of the present invention.

FIG. 2 is a diagram showing a normal recognition range and a correction recognition range.

FIG. 3 is a flow chart for explaining the operation of the present invention.

FIG. 4 is a flow chart for explaining the operation of the present invention.

FIG. 5 is a diagram for explaining a specific data correction method according to the present invention.

[Fig. 6] Fig. 6 is a diagram for describing a problem due to a parallax angle.

[Explanation of symbols]

 11 CPU 12 Input Panel 13 Display Object 14 Correction Recognition Area 15 Power Switch 16 Correction Function Button 31 Normal Recognition Range 32 Correction Recognition Range

Claims (1)

[Claims] 1. A data input device, in which an operator touches a display unit on a screen to input the displayed data, and when the display on the screen is viewed by the operator, a parallax is generated depending on its position. , A shift due to the parallax occurs between a first position on the screen and a second position below the screen where the display is actually present, and the operator moves on the screen directly above the second position. When is touched, the data of the display unit is input, and the correction recognition area including the second position and the periphery of the second position, and the position on the screen touched by the operator is the correction recognition area. Input presence / absence determining means for determining whether or not it is included in, and when the input presence / absence determining means determines that the operator touches the correction recognition area, the parallax is determined according to the touch position. And a correcting means for correcting the Ruzure, data input device.