JPH05324201A - Device and method for input - Google Patents

Abstract

PURPOSE:To improve the processing speed by selecting a grid interval by an operator and varying the scanning speed, and generating and sending a character code to an external device at the time of character recognition processing. CONSTITUTION:A scan input 1 is small in grid interval and slow in scanning speed, but a scan input 2 is large in grid interval and relatively fast in scanning speed. The operator selects one of them by a control means 22 and sends the selected control information to an MPU 14 to select the scanning speed. Further, the operator sends the size of a character recognition frame to the MPU 14 by the control means 22 to vary the size of the character recognition frame. When a character recognizing means 20 performs the character recognition processing, a character recognition assisting means 21 displays the character recognition frame at a display part 11 and a character handwritten in the character recognition frame is recognized by using a character recognizing means 20; and the recognized character code is sent to the external device by a communication means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coordinate input device or a character input device for recognition in which a transparent panel sensor is mounted on a display screen such as a CRT display or a liquid crystal display device, and an input method thereof.

[0002]

2. Description of the Related Art In an input device such as a touch panel in which a transparent touch key is mounted on the front surface of a display screen, by touching the touch key with a human finger, a position is specified on the display screen and the touch screen is passed through the display screen. It is possible to give an instruction to a computer connected to the computer. Such a man machine
As a conventional example relating to the taichi sensor used for communication, there are, for example, JP-A-63-78222 (hereinafter, Conventional Example 1), JP-A-63-4319 (hereinafter, Conventional Example 2), and JP-A-63-41922. 63-4317 (hereinafter, Conventional Example 3), JP-A-63-103320 (hereinafter, Conventional Example 4), JP-A-63-4323 (hereinafter,
Conventional Example 5), Japanese Patent Application Laid-Open No. 1-283621 (hereinafter, Conventional Example 6), and Japanese Patent Application Laid-Open No. 3-63720 (hereinafter,
Conventional example 7) and so on. In the above-mentioned conventional example 1, one screen is arbitrarily divided, the touch sensor operation is detected for each of these divisions, and the detection result is subjected to signal processing of the content given for each division. Further, in the above-mentioned conventional example 2, when the touch key portion is pressed, the coordinates of the touched position of the touch key portion are read and it is determined whether or not there is an interval designation from the host computer. According to the designated precision, new coordinates are calculated by multiplying the original two times, four times, eight times, etc., and the new coordinates are transmitted to the host computer. As a result, the input information amount is changed according to the input section without changing the total input information amount, and the same information is input even if two or more or three or more key switches are pressed. , Dealing with miniaturization.

Further, in the above-mentioned conventional example 3, the grid interval of the key switch is also variably set, and a pattern showing the grid interval is displayed on the display screen according to the grid interval. In Conventional Example 4 above,
A plurality of item display contents can be arbitrarily selected, and according to the change of the item display contents, the correspondence between the contents and the touch switch is changed by referring to the touch switch area defining means, and the correspondence information is output. There is. In the above-mentioned conventional example 5, by pressing the touch key on the previously displayed image information, it is possible to select either the positional information or the character code. In the above-mentioned conventional example 6,
By providing two types of input means for normal input and fine input, and in the case of fine input, by returning the two types of input,
A fine input such as a figure is displayed on the display screen in a rectangular frame. In the conventional example 7, characters or the like can be arbitrarily assigned to the touch key and displayed, and only the portion assigned for this input is selectively scanned.

[0004]

As described above, many input devices using a panel sensor have been conventionally used. However, since all of them are mainly used for small devices, the panel sensor The size was limited. Therefore, the delay of the scan speed was not so noticeable to the operator. However, as the panel sensor becomes larger, the scanning speed becomes slower, and thus the delay in the recognition speed at the time of inputting is very annoying to the operator. Further, in a character reading device or the like for inputting characters from an input device using a panel sensor, a handwritten character is recognized within a character recognition frame. However, when changing the size of the input character, it is desirable to be able to change the size of the character recognition frame. A first object of the present invention is to solve such a conventional problem and to increase the scanning speed even on a large screen so that the recognition speed at the time of operator coordinate input can be adjusted to the operation speed. It is to provide a coordinate input device capable of improving operability and an input method thereof. A second object of the present invention is to change the grid interval in accordance with the size of the character recognition frame set by the operator, control the amount of input information, and change the scan speed, thereby performing processing by the character recognition processing. To reduce the delay
It is to provide a character input device capable of improving operability and an input method thereof. A third object of the present invention is to provide an input device and an input method capable of sending character code information to an external device to reduce the load of data processing and improve the processing speed. To do.

[0005]

In order to achieve the above object, the input device of the present invention comprises: (a) display means for displaying image information; and a panel sensor mounted on the display surface of the display means. In an input device provided with an input means for inputting by direct contact, a control means for selecting the size of the space and a control means for changing the space of the coordinate grid or the character recognition frame of the input means. A microprocessor for receiving control information of the interval and outputting an interval change command, and a character recognition assisting means for changing the interval by an instruction from the microprocessor and displaying the changed coordinate grid or character recognition frame on the display means. And a character recognition means for recognizing a character input in the character recognition frame of the panel sensor. Further, (b) in the coordinate input method in which the scan input is performed from the panel sensor after the scan output to the panel sensor and the scan input data is stored, the operator is a grid of the panel sensor. When the spacing is selected by using the control means, the control means sends control information for changing the selected grid spacing to the microprocessor, and the microprocessor receives the control information, and scans input and scan output according to the control information. It also features changing the speed. Also,
(C) In the input method for character recognition, in which after scan output to the panel sensor, scan input is performed from the panel sensor in which characters have been input, and the input character data scanned in is stored, in the input method for character recognition, the operator When the size of the character recognition frame of the panel sensor is selected by using the control means, the control means sends control information relating to the size of the selected character recognition frame to the microprocessor, and the microprocessor receives the control information and outputs the character. A command to change the size of the character recognition frame is output to the recognition assisting device, the character recognition assisting device displays the changed character recognition frame on the display surface, and the microprocessor changes the size of the changed character recognition frame. It is also characterized by changing the scan speed at the time of scan input and scan output according to. Further, in the character recognition input method (d), in the character recognition processing, the characters handwritten in the character recognition frame are character-recognized by the character recognition means, a character code of the recognized character is generated, and the character code is generated. It is also characterized in that the character recognized by the external device is processed by transmitting the command to the external device.

[0006]

In the present invention, (a) in a coordinate input device using a panel sensor, by controlling the amount of input information, the scanning speed is increased even on a large screen so that the operator can recognize the recognition speed at the time of input. The operability is improved by adjusting to the operation speed. As a result, the operator can change the scanning speed by selecting the grid interval, and thus the operability can be improved even with a large panel sensor. (B) In a character reading device or the like equipped with a character input device using a panel sensor,
Equipped with character recognition auxiliary means and character recognition means, displays the character recognition frame when performing character recognition processing, changes the grid interval according to the size of the character recognition frame set by the operator, and changes the input information amount. The scan speed is changed by controlling the control to improve the operability. Furthermore, (c) Furthermore, by sending the character code information of the handwritten input character recognized in the character recognition frame to the external device, the process in the external device is simplified.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram of an input device showing an embodiment of the present invention. The input device of this embodiment is the display device 1.
1 and display control unit 12, and a display device 11
The input means using the panel sensor 23 on the display surface of the display, the control means 22 capable of changing the grid interval of the input means, and the data
RAM 18 for storing data, a program ROM 19,
A memory control unit 13 that controls the RAM 18 and the ROM 19 and an M that controls the control units 12, 13, and 22.
It has a PU (microprocessor) 14, scanning buffers 15, 16 and 17, a character recognition means 20, and a character recognition auxiliary means 21. The input control of the panel sensor 23 can recognize the input position on the panel sensor 23 by the MPU 14 obtaining the input position information as the scan input for the scan output from the MPU 14. Here, scan inputs to the MPU 14 include scan input 1 input from the buffer 17 and scan input 2 input from the buffer 16. Since the scan input 1 has a small grid interval and a large amount of input position information, the scan speed is slow, whereas the scan input 2 has a large grid interval and a small amount of input position information, so the scan speed is relatively fast. In FIG. 1, the scan input 1 and the scan input 2 have two kinds of scan inputs in hardware as described above, but even one scan input can be used.
It is also possible to realize a scan input with a small grid interval and a scan input with a large grid interval in terms of software. In the present embodiment, the input recognition speed becomes slower as the panel becomes larger, so that it can be corrected.

FIG. 2 is a diagram of the panel sensor when the recognizable minimum grid is small, and FIG. 3 is a diagram of the panel sensor when the recognizable minimum grid is large. In this embodiment, the coordinate input device is provided with a plurality of scanning methods so that the scanning speed can be changed according to the grid interval. For example, as shown in FIG. 2, scan input 1 with a large amount of input position information (small grid interval) and a slow scan speed, and scan input 1 with a small amount of input position information (large grid interval) as shown in FIG. The scan input 2 having a relatively high speed can be switched and used. The operator selects either one by the control means 22 and sends the selected control information to the MPU 14 to select a scan speed at which the operator can easily operate. As the control unit 22, it is conceivable that the control unit 22 has a function of generating a control signal corresponding to the grid spacing size by pressing a button indicating a plurality of grid spacing sizes and sending the control signal to the MPU 14.
The present invention is not limited to this, and those having keys corresponding to large, medium, and small sizes and those having changeover switches may be used.

Next, as shown in FIG. 1, in this embodiment,
In the character recognition device, the character recognition auxiliary means 21 and the character recognition means 20 are provided so that the operator can use the control means 22 to select the size of the character recognition frame. The control means 22 sends the selected control information to the MPU 1
4 to the character recognition assisting means 21.
A command to change the size of the character recognition frame is issued. The character recognition assisting means 21 registers only a plurality of types of character recognition frame patterns as shown in FIGS. 2 and 3 in the internal memory, and when a change command is received, the character recognition frame is changed and changed. The subsequent character recognition frame is used for the memory control unit 13 and the display control unit 12.
It is displayed on the display surface of the display device 11 via. This causes the MPU 14 to scan input 2 from the buffer 16.
And receives scan input 1 from buffer 17,
By selecting one of them according to the size of the character recognition frame, the grid interval, that is, the scanning method is changed. As a result, the operator can recognize characters and can select a scan speed that is easy to operate.
The character recognition assisting means 21 is most commonly composed of a pattern generator (CG) and generates a grid pattern having a plurality of types of grid intervals and causes the display device 11 to display the grid pattern.

Next, referring to FIG. 1, when character recognition processing is performed by the character recognition means 20, the character recognition assisting means 2 is used.
1, the character recognition frame is displayed on the display device 11. Characters input by handwriting in the character recognition frame are character-recognized by the character recognition means 20, and the recognized character code information is transmitted to an external device by a communication means (not shown). As a result, there is no need to restore the information once recognized to the original image information. Further, since the external device can also perform the data processing with the character code, the processing speed can be improved. FIG. 4 is an MP showing an embodiment of the present invention.
8 is a flowchart of a U scan method setting process. When setting the scan method (step 101),
It is determined whether or not there is a grid spacing change request (step 102), and if there is, the operator makes a selection using the control means 22 and then the selected control information is received by the MPU to change the grid spacing. The scanning method is switched to match the grid interval (step 106). Further, if there is no request for changing the grid interval, the MPU 14 outputs the scan output to the panel sensor 23 via the buffer 15 (step 103) and the scan input from the panel sensor 23 via the buffer 16 or the buffer 17 (step). 104). The scan input data is stored in the internal memory (step 105).

FIG. 5 is a flowchart of the process of setting the recognition auxiliary frame of the MPU showing an embodiment of the present invention. When setting the recognition relief frame (step 201), first, the scanning method shown in FIG. 4 is set (step 20).
2) Next, it is determined whether or not there is a character recognition frame change request (step 203). If requested, the operator uses the control means 22 to select the size of the character recognition frame, and then the control means 22 sends the selected control information to the MPU 14, so that the MPU 14 instructs the character recognition auxiliary means 21. To issue a command to change the size of the character recognition frame, and the character recognition assisting means 21
By displaying the changed character recognition frame on the display surface of the display device 11, it is determined whether or not it is also necessary to switch the grid interval (step 207). If necessary, the grid spacing is changed by switching the scanning method (step 208). If there is no request to change the character recognition frame, the MPU 14 outputs the scan output to the panel sensor 23 via the buffer 15 (step 204), and then the scan input from the panel sensor 23 via the buffer 16 or the buffer 17. Is performed (step 205). Then, the scan input data is stored in the internal memory (step 206).

[0012]

As described above, according to the present invention,
(A) Since the operator can change the scan speed by selecting the grid interval, the operability can be improved even in a large panel sensor. Also,
(B) When performing character recognition processing, the size of the character recognition frame can be selected, and the grid interval and scanning speed change according to the size of the character recognition frame, so the processing delay due to character recognition processing Can be prevented and the operability can be improved. Further, (c) the character code can be generated by the character recognition processing and the character code information can be sent to the external device, so that the load of the data processing is reduced and the processing speed is improved. be able to.

[0013]

[Brief description of drawings]

FIG. 1 is an overall block diagram of an input device showing an embodiment of the present invention.

FIG. 2 is a diagram showing a screen when a recognizable minimum grid of the display device is small.

FIG. 3 is a diagram showing a screen when a recognizable minimum grid of the display device is large.

FIG. 4 is a flowchart of the setting process of the scanning method according to the present invention.

FIG. 5 is a flowchart of a recognition auxiliary frame setting process according to the present invention.

[Explanation of symbols]

 11 display device 12 display control unit 13 memory control unit 14 MPU 15, 16, 17 buffer 18 RAM 19 ROM 20 character recognition means 21 character recognition auxiliary means 22 control means 23 panel sensor

Claims (4)

[Claims] 1. An input device comprising: a display unit for displaying image information; and an input unit for mounting a panel sensor on a display surface of the display unit and inputting by directly contacting the panel sensor. A control means for selecting the size of the space for changing the space of the coordinate grid or the character recognition frame of the means; and a microprocessor for receiving control information of the space changed from the control means and outputting a space change command. A character recognition assisting means for changing the interval according to a command from the microprocessor to display the changed coordinate grid or character recognition frame on the display means, and a character input in the character recognition frame of the panel sensor. An input device comprising a character recognition means for recognizing. 2. A coordinate input method in which after scan-outputting to a panel sensor, scan input is performed from the panel sensor to which coordinate input is performed, and the scan-input data is stored, the operator is the panel sensor. Of the grid spacing of the control means, the control means sends control information for changing the selected grid spacing to the microprocessor, the microprocessor receives the control information, and the scan input is performed according to the control information. A coordinate input method characterized by changing the scan speed when performing scan output. 3. An input method for character recognition, wherein after scan-outputting to a panel sensor, scan-input is performed from the panel-sensor in which a character is input, and input scan-input character data is stored. -When the controller selects the size of the character recognition frame of the panel sensor by using the control means, the control means sends control information regarding the size of the selected character recognition frame to the microprocessor, and the microprocessor The control information is received, the command for changing the size of the character recognition frame is output to the character recognition assisting unit, the character recognition assisting unit displays the changed character recognition frame on the display surface, and the microprocessor changes the size. A character recognition input method, characterized in that the scan speed at the time of scan input and scan output is changed according to the size of the recognized character recognition frame. 4. The character recognition input method according to claim 3, wherein in the character recognition processing, characters handwritten in the character recognition frame are character-recognized by a character recognition means, and character recognition of the recognized characters is performed. A character recognition input method, wherein a character recognized by the external device is processed by generating a code and transmitting the character code to the external device.