JPS63170727A - Touch panel input device - Google Patents

Abstract

PURPOSE:To obtain a touch panel input device capable of transmitting errorless proper coordinate values to a host computer by adding a difference to the coordinate value inputted by operator's touch with a touch panel and using the addition result as a true input coordinate value. CONSTITUTION:When a display means displays a target in a known position on the screen of a display device, the operator touches a touch panel 1 corresponding to the target and operates an input means 5 to input the coordinate value indicating the target position to an operating means 32. The operating means 32 calculates the difference between the coordinate value inputted by operator's touch with the touch panel part 1 corresponding to the target and the coordinate value inputted from the input means 5. A correcting means 3 adds the difference to the former coordinate value, and the addition result is used as a true input coordinate value. Thus, the coordinate value is not different by the deviation of attachment or the like of the touch panel in case of input of the character coordinate value on the CRT screen to a host computer 4 or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a touch panel input device that detects and inputs coordinate values of various parts of a CR7 screen.

(Prior Art) FIG. 4 is a block diagram showing an example of a conventional device of this type. The touch panel section 1 consists of a touch panel provided in front of the CR7 screen, and when the operator touches the touch panel, the coordinate value (X, Y) of the CR7 screen corresponding to the touched part is detected by the coordinate value detection section 2, This is output to the coordinate data creation and transmission section 3. The coordinate data creation and transmission section 3 formats the input coordinate values into a format that can be sent to the host computer 4, and then sends them to the host computer 4.

By the way, since the touch panel is attached to the front of the CRT screen, the display on the CR7 screen may be affected by misalignment that occurs during installation, display shifts and distortions on the CR7 screen, and errors inherent in the touch panel section 1 and coordinate value detection section 2. There is a drawback in that even if a touch panel portion corresponding to a displayed character is touched, a different coordinate value deviated from the original coordinate value (target value) of the displayed character is sent to the host computer 4.

(Problems to be Solved by the Invention) Conventionally, in this type of touch panel input device, detection errors may occur due to misalignment when the touch panel is attached to the CRT screen, display misalignment and distortion of the CRT, and errors when detecting coordinate values by the touch panel. There was a drawback that the coordinate values obtained would deviate from the original values. SUMMARY OF THE INVENTION The present invention aims to eliminate the above-mentioned drawbacks and provides a touch panel input device that can correct coordinate values input from a touch panel and transmit original coordinate values without errors to a host computer.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides that when an operator touches a touch panel provided on the front surface of a screen of a display device, coordinates indicating the position of the screen corresponding to the touched part are displayed. In a touch panel input device for inputting values into an information processing device, a display means for displaying a target at a known position on the display device, an input means for inputting a coordinate value indicating the position of the target, and a touch panel input device for inputting a coordinate value indicating the position of the target, a calculation means for calculating a difference between a coordinate value input when an operator touches the touch panel portion and a coordinate value input from the input means; and adding the difference to the coordinate value input when the operator touches the touch panel. and a correction means that uses the result as the true input coordinate value.

(Function) In the touch panel input device of the present invention, the display means displays a target at a known position on the screen of the display device. The operator touches the touch panel portion corresponding to the target and operates the input means to input coordinate values indicating the position of the target into the calculation means. The calculation means calculates a difference between a coordinate value input when an operator touches the touch panel portion corresponding to the target and a coordinate value input from the input means.

The correction means adds the difference to the coordinate values input by touching the touch panel by the operator, and takes the result as the true input coordinates. As a result, when character coordinate values on a CRT screen are inputted to, for example, a host computer using the present touch panel input device, there is no possibility that the coordinate values will be different due to misalignment of the touch panel.

(Example) An example of the present invention will be described below with reference to the drawings, in which the same parts as those of the conventional example are denoted by the same reference numerals. FIG. 1 is a block diagram showing an embodiment of the touch panel input device of the present invention. Reference numeral 1 denotes a touch panel unit consisting of a touch panel attached to the front of the CRT screen, which outputs point values of the portion touched by the operator to the coordinate value detection unit 2. 2 is a coordinate value detection unit that detects the XY coordinate values of input point values and outputs them to the coordinate data creation and transmission unit 3;
The coordinate system consists of a coordinate data creation and transmission circuit 31 that converts the input XY coordinates into a format that can be transmitted to the host computer 4 and transmits them to the host computer 4, and a correction circuit 32 that corrects the input coordinate values. A data creation and transmission unit 4 is a host computer that processes the transmitted coordinate values, and a correction circuit 5 5 is a correction circuit 32 of the coordinate data creation and transmission unit 3 that converts the original coordinate values by an operator's operation.
A correction value input device is used to input the correction value.

Next, the operation of this embodiment will be explained. When the operator touches a portion of the touch panel 10 shown in FIG. 2 corresponding to the letter A, for example, the point value of the touched portion is output from the touch panel section 1 of FIG. 1 to the coordinate value detection section 2. The coordinate value detection unit 2 detects coordinate values corresponding to the input point value,
In the case of the previous example, (XA, Yo) is detected and outputted to the coordinate data creation and transmission circuit 31 of the coordinate data creation and transmission section 3. Here, as shown in FIG. 2, if the touch panel 10 is attached to a predetermined position on the CRT screen without shifting, and if there is no shift in the character display on the CRT screen, the coordinate data creation and transmission circuit 3 receives input data. After converting the coordinate values into a format that can be transmitted to the host computer 4, the coordinate values are transmitted to the host computer 4. Similarly, if you touch the H part (center part) of the touch panel 10, the coordinate values (XB, YB) for this day are output to the host computer 4, and if you touch the Z part, the coordinate values (Xc, YA) are output to the host computer 4. Note that in this case, the correction value described later will be (0, O). Further, symbols written on the left side and bottom of the touch panel 10 in FIG. 2 indicate coordinate values of displayed characters and distances between each displayed character.

Here, it is assumed that the attachment of the touch panel 10 to the CRT screen is deviated from the normal position shown in FIG. 2, as shown in FIG. 3, for example. In this state, if you touch the corresponding part of the touch panel to input coordinate values for a character, the host computer 4 will not be able to display (XA + ΔX, Y
c-ΔY) is input. Therefore, in this example, in such a case, the target (here A) is displayed on the CRT screen.
) and touch this part of the touch panel.

In this case, the coordinate data creation and transmission circuit 31 (XA
+Δx, yc−ΔY) is input, but the correction value input unit 5 inputs to the correction circuit 32 that the original value of these coordinates is (xA, Yo). As a result, the correction circuit 32 sets the correction value (-8X).

ΔY), and thereafter, when the operator of the touch panel unit 1 inputs the coordinate value corresponding to the touched part from the coordinate value detection unit 2, the correction circuit 32 adds the correction value to the input coordinate value and converts it into a true value. is given to the coordinate data creation and transmission circuit 31 as coordinate values. If there are multiple targets for correction, the correction circuit 32 can input each target's original value to the correction circuit 32 from the correction value input device 5 each time the touch panel part corresponding to each target is touched. A correction value for each target is calculated. In such a case, the coordinate values input thereafter are corrected using the corresponding correction value at the closest target, and then provided to the coordinate data creation and transmission circuit 31.

According to this embodiment, when the touch panel is replaced or the CRT display device is replaced, input coordinate values are corrected by the correction circuit 32 and the correction value input device 5, thereby reducing installation errors of the touch panel, display deviation of the CRT display device, etc. It is possible to input into the host computer 4 highly accurate coordinate values of the CRT screen, which have been corrected for distortions and errors caused by the touch panel section 1 and the two coordinate value detection sections. Thereby, by performing the above correction when replacing the touch panel or the CRT display device, it is possible to make the coordinate values sent to the host computer 4 the same as before the replacement when the touch panel portion at the same character position is touched. Note that the greater the number of correction targets, the higher the accuracy of the coordinate values input to the host computer 4. Further, in the above embodiment, the original value of the target is input into the correction circuit 32 by the operator operating the correction value input device 5, but this original value of the target is input into the correction circuit 32 from the host computer 4. The same effect can be obtained by doing so.

[Effects of the Invention] As described above, the touch panel input device of the present invention has the effect of correcting the coordinate values input from the touch panel and transmitting the original coordinate values without errors to the host computer.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the touch panel input device of the present invention, and FIG. 2 is a diagram showing a case where the positional relationship between the touch panel and the characters displayed on the CRT screen is normal.
FIG. 3 is a diagram showing a case where the positional relationship between the touch panel and the characters displayed on the CRT screen deviates from the normal position, and FIG. 4 is a block diagram showing an example of a conventional touch panel input device. 1...Touch panel section 2...Coordinate value detection section 3...
・Coordinate data creation and transmission unit 4...Host computer 5...Correction value input device 32...Correction circuit agent
Patent Attorney Nori Ken Chika Yudo Sanno - Figure 1 Figure 4

Claims (1)

[Claims] In a touch panel input device, when an operator touches a touch panel provided in front of a screen of a display device, coordinate values indicating the position of the screen corresponding to the touched part are input to an information processing device. a display means for displaying a target at a position; an input means for inputting coordinate values indicating the position of the target; and coordinate values input when an operator touches the touch panel portion corresponding to the target and input from the input means. and a correction means that adds the difference to the coordinate values input by touching the touch panel by an operator and uses the result as the true input coordinate value. A touch panel input device characterized by: