JPH05257604A - Data input device - Google Patents

Abstract

PURPOSE:To obtain the data input device which prevents misindication and misoperation and is safe and improved in reliability by accepting an input request when a specific area on the screen of a display device is pressed in conformity with the conventional operation custom of a push button. CONSTITUTION:This data input device is equipped with a coordinate data input unit 22 which outputs the coordinate position signal of an indicated position in response to an input indication made by an indicator 2 such as a finger on the screen of the display device displaying figures, characters, etc., a coordinate position detection device 5 which detects the input coordinate position according to the coordinate position signal from the indicator 22, a cursor output device 6 which outputs a cursor indicating the position at the input indicated position on the display screen of the display device 1, an indication data input unit 21 which outputs an input request signal by the indicator 2, and a cursor position reader 23 which reads the input request signal from the input unit 21 and the cursor position signal from the cursor output device 6 and outputs a cursor position signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data input device which is arranged on the screen of a display device such as a CRT and inputs data with an indicator.

[0002]

2. Description of the Related Art A conventional data input device using an optical touch input detector, as shown in the block diagram of FIG. 5, displays data on a screen of a display device 1 such as a CRT such as a finger or an indicator stick. The device that inputs data by pressing with the indicator 2 is
Generally, it is called a touch input device, and due to its compactness, it has been widely used in place of conventional hardware switches.

However, in a CRT or the like which is widely used as the display device 1, its screen is not a flat surface but a gently curved surface having various curvatures, and data input by the touch input detector 3 or the like is performed on the screen. When the device is installed and an attempt is made to instruct the figure data on the screen with the indicator 2 such as a finger, a great amount of parallax is generated at the upper, lower, left and right edges of the screen, which is one of the causes of erroneous instruction and operation error. Was becoming.

Conventionally, in order to solve this drawback, when an instruction is given on the screen of the display device 1 with an indicator 2 such as a finger, a cursor is displayed to indicate the instruction on the screen, and the displayed cursor is required. The position at which the indicator 2 is separated from the touch input detector 3 on the screen after the position is confirmed and the indicator 2 is separated from the touch input detector 3 by the cursor. The method of inputting position data was adopted.

That is, in this data input device, the coordinate position signal a input from the touch input detector 3 installed on the display device 1 is sent to the coordinate position detection device 5 in the touch input control device 4, Further, it is transferred to the cursor output device 6 as coordinate position data. The cursor output device 6 outputs the cursor position signal c to the display device 1 at the position indicated by the coordinate position signal a.

When the indicator 2 is separated from the touch input detector 3 here, the touch input detector 3 outputs the input request signal b to the position detecting device 7 on the assumption that there is an input request instruction. The release position detecting device 7 reads a cursor position signal c indicating the position at which the cursor is output at that time from the cursor output device 6, and sends it to a display control device or the like (not shown) as data of the position at which the input is requested.

FIG. 6 is an operation step diagram showing a case where the push button 9 displayed on the display screen 8 of the display device 1 is selected. Based on FIG. 6, the situation of this operation will be described in detail according to the display on the display screen 8. In FIG. 6A, the indicator 2 is not yet in contact with the touch input detector 3, and the push button area 9 is only displayed on the display screen 8.

In FIG. 6 (b), the indicator 2 presses the touch input detector 3, and the cursor 10 (in this example, a + character-shaped cursor is displayed outside the push button area 9 at the upper left of the display screen 8). Is shown) is displayed. In FIG. 6C, the indicator 2
While pressing the touch input detector 3, move to the middle of the display screen 8 and move the cursor 10 inside the push button area 9.
Match.

When the indicator 2 is separated from the touch input detector 3 in the last part of FIG. 6D, the touch input detector 3 determines that an input request instruction has been issued and outputs the input request signal b to the separated position detecting device 7 Output to. The release position detecting device 7 reads the position at which the cursor 10 is being output at that time, that is, the cursor position signal c indicating the inside of the push button area 9 from the cursor output device 6 and obtains the data of the position requested to be input. It is sent to the display control device.

As described above, the touch input detector 3 installed on the screen of the display device 1 uses one touch input to detect the input position data using the indicator 2 and to detect the presence or absence of the input request instruction. Since the detector 3 is used to make an input request after confirming the touch position with the cursor 10, the input request can be issued only by moving the indicator 2 away from the touch input detector 3.

[0011]

In order to detect the input position data by pressing and pulling the indicator 2 and the presence / absence of the input request instruction by one touch input detector 3, an indicator such as a finger is used. The data at the cursor position is being input when 2 is released.

However, in this method, the push button generally has a feeling that a request is accepted when the button is pushed as an operating practice. Therefore, in the method of accepting the request when the indicator 2 is released as described above, for example, a cursor is used. Even if 10 is displayed, it is necessary to get accustomed to the operation sufficiently, and it is easy to cause an incorrect instruction or operation due to an operation different from this practice, and the data input device such as the touch input detector 3 is used for operating the plant equipment. When used, there was a problem that as a result, there is a risk of causing a serious accident.

An object of the present invention is to allow an input request to be accepted when a predetermined area on the screen of a display device is pressed in conformity with the conventional push button operation practice, thereby making an erroneous instruction or an erroneous operation. It is to provide a safe and reliable data input device that prevents the above.

[0014]

[Means for Solving the Problems] A coordinate position signal of that position is output in response to an input instruction by an indicator such as a finger provided on the front surface of a screen of a display device for displaying graphics and characters. A coordinate data input device, a coordinate position detection device that detects an input coordinate position based on a coordinate position signal from the coordinate data input device, and a position indicated by the input instruction on the display screen of the display device. A cursor output device for outputting a cursor, an instruction data input device provided on the front surface of the screen of the display device for outputting an input request signal by the indicator, an input request signal from the instruction data input device, and the cursor output device. And a cursor position reading device for reading the cursor position signal from the device and outputting the cursor position signal.

[0015]

When the indicator is positioned in front of a predetermined figure or character displayed on the screen of the display device, the coordinate data input device outputs a coordinate position signal at this position to the coordinate position detecting device.
The coordinate position detection device transfers the coordinate position signal to the cursor output device, and in the cursor output device, displays a cursor position signal for displaying a cursor at a position corresponding to the input coordinate position signal, the display device and the cursor position reading device. Output to.

As a result, the display device displays a cursor at the position of the indicator on the screen, and thus the cursor moves as the indicator moves. After confirming the position of a predetermined figure or character with the cursor on the display screen, press the indicator on the instruction data input device on the screen, and the input request signal is output from the instruction data input device to the cursor position reading device. The cursor position reading device outputs a cursor position signal of position data on the screen requested by the indicator.

[0017]

An embodiment of the present invention will be described with reference to the drawings. It should be noted that the same components as those of the above-described conventional technique are denoted by the same reference numerals and detailed description thereof will be omitted. As shown in the block diagram of FIG. 1, the data input device 20 is a CRT.
A display device 1 such as a display device 1 and a display device 1 such as a resistance touch input detector, which is an input data input device 21, is provided in front of the screen of the display device 1. A coordinate data input device 22 including an input detector is provided.

Further, it comprises a coordinate position detecting device 5, a cursor output device 6 and a cursor position reading device 23, and the coordinate position signal a from the coordinate data input device 22 is inputted to the coordinate position detecting device 5 and an instruction data input device. The input request signal b from 21 is input to the cursor position reading device 23.

A coordinate position signal a of coordinate position data is transmitted from the coordinate position detecting device 5 to the cursor output device 6, and a cursor position signal c is output from the cursor output device 6 to the display device 1. At the same time, the cursor position signal c is also output to the cursor position reading device 23. Further, the cursor position reading device 23 is configured to send a cursor position signal c of the position data requested to be input by the indicator 2 to a display control device or the like (not shown).

The cursor position reading device 23 is a cursor position storage device as shown in the block diagram of FIG.
24 and the cursor position reading control device 25,
Its functions are: (1) Data is stored in the cursor position storage device 24. (2) When the cursor position reading control device 25 receives a signal, the cursor position storage device 24 sends the above data to the reading display control device 25 and the like.

This is as shown in the flow chart of FIG. 3, but such a function can be easily realized by using a microprocessor equipped with an interrupt and a storage device. Figure 3
In the "operation start", the interruption may be performed by using the change of the input request signal b or the cursor position signal c. When the interrupt is not used, the "operation end" in FIG. 3 is returned to the "operation start", and an appropriate delay time can be inserted in the meantime.

Next, the operation of the above configuration will be described. When the indicator 2 interrupts the optical screen of the coordinate data input device 22 arranged on the screen of the display device 1 by the operation of the operator, the coordinate data input device 22 coordinates the coordinate position signal a indicating the coordinate position data. Output to the position detection device 5, and further
The coordinate position detecting device 5 transfers the coordinate position signal a to the cursor output device 6.

The cursor output device 6 sends a cursor position signal c to the display device 1 so that the display device 1 outputs the cursor at the position indicated by the coordinate position signal a, and at the same time, the cursor position reading device 23 also receives the cursor position signal c. Is output. In the cursor position reading device 23, the cursor position signal c
The cursor position data according to is stored in the cursor position storage device 15.

Here, the operator sets the cursor to the position of the cursor displayed on the display device 1 and uses the indicator 2 to input the instruction data input device 21.
When is pressed to give an input request instruction, the instruction data input device 21
The resistance value of 1 changes and the input request signal b is output to the cursor position reading device 23 on the assumption that there is an input request instruction.

Cursor position reading device as shown in FIG.
In 23, when the cursor position reading control device 25 receives the input request signal b, the cursor position signal c is read from the cursor position storage device 24, and the cursor position signal is sent to a display control device or the like (not shown) as data of the position where the input request is made. Send c. The operation step diagram of FIG. 4 shows an operation example in the case of selecting a push button displayed on the screen.

First, in FIG. 4A, the indicator 2 has not yet indicated the coordinate data input device 22 on the screen, and only the push button area 9 is displayed on the display screen 8. Next in FIG.
In (b), the indicator 2 indicates the coordinate data input device 22,
A cursor 10 (indicated by a + cursor in this example) is displayed outside the push button area 9 at the upper left of the display screen 8.

In FIG. 4C, the pointing device 2 is moved to the middle of the display screen 8 while pointing the coordinate data input device 22, and the cursor 10 is placed inside the push button area 9. Figure 4
In (d), when the indicator 2 is brought closer to the screen and the instruction data input device 21 is pressed, it is determined that the instruction data input device 21 has made an input request instruction, and the input request signal b is input to the cursor position reading device 23. Output to.

The cursor position reading device 23 reads from the cursor output device 6 a position at which the cursor 10 is being output, that is, a cursor position signal c indicating the inside of the push button area 9 in this example, and a position at which an input request is made. The cursor position signal c is sent to the display control device or the like as the above data. As described above, the request is accepted when the area on the screen is pressed in conformity with the conventional push button operation practice.

Here, the display device 1 and the coordinate data input device 22,
And the spatial arrangement order of the instruction data input device 21 is as shown in FIG.
Also, as shown in FIG. 4, the instruction data input device 21 and the coordinate data input device 22 are the ones closer to the display device 1. Normally, the instruction data input device 21 is a resistance type or capacitance type touch input detector. The surface of the display device 1 is brought into close contact with it.

The coordinate data input device 22 may be installed by using an optical touch input detector so that an optical screen such as infrared rays is located several cm (1 to 2 cm) from the surface of the display device 1. In this case, since the distance between the coordinate data input device 22 and the instruction data input device 21 is short, high-speed responsiveness, in particular, high-speed cursor output is required, but in the case of the above microprocessor example, adoption of a high-speed processor or Higher processing responsiveness can be easily realized by using a main memory of the program.

[0031]

As described above, according to the present invention, it is possible to prevent an erroneous instruction and an erroneous operation by conforming to the conventional push button operation practice and performing the operation of accepting the request when the area on the screen of the display device is pressed. It is safe and highly reliable, and has the effect of safely operating the adopted plant.

[Brief description of drawings]

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

FIG. 2 is a block configuration diagram of a cursor position reading device according to an embodiment of the present invention.

FIG. 3 is a flowchart according to an embodiment of the present invention.

FIG. 4 is an operation step diagram showing an operation example of the present invention.

FIG. 5 is a block configuration diagram of a conventional data input device.

FIG. 6 is an operation step diagram showing an operation example of a conventional data input device.

[Explanation of symbols]

1 ... Display device, 2 ... Indicator, 5 ... Coordinate position detection device, 6
... Cursor output device, 8 ... Display screen, 9 ... Push button area, 10 ... Cursor, 20 ... Data input device, 21 ... Instruction data input device, 22 ... Coordinate data input device, 23 ... Cursor position reading device, 24 ... Cursor Position storage device, 25 ... Cursor position reading control device.

Claims (1)

[Claims] 1. A coordinate data input device which is provided on the front surface of a screen of a display device for displaying graphics or characters and which outputs a coordinate position signal at that position in response to an input instruction by an indicator such as a finger on the screen of the display device. And a coordinate position detecting device that detects an input coordinate position based on a coordinate position signal from the coordinate data input device, and a cursor that indicates the position at the input designated position on the display screen of the display device. A cursor output device, an instruction data input device provided on the front surface of the screen of the display device to output an input request signal by the indicator, an input request signal from the instruction data input device, and a cursor position from the cursor output device. A data input device comprising a cursor position reading device for reading a signal and outputting a cursor position signal.