JPH05182016A - Information processing equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an information processing apparatus capable of setting an input area of data to be recognized and input to an appropriate size. [Structure] An input tablet is stacked on the display circuit, and a character to be recognized and input is input to an area on the input tablet corresponding to a character input frame 25 displayed on the display circuit. In the character input frame 25, the size of the character input frame 25 is changed by lowering the input pen and inputting the straight line 38 to the area on the input tablet 21 corresponding to the shaded area inside the rectangles 32 and 33. Indicate the amount. By recognizing the length or direction of the straight line 38 by the CPU, control is performed to change the size of the character input frame 25 on the display circuit or the input tablet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a coordinate input means and a data input area on which the coordinate can be input, and input information is input based on a coordinate sequence input into the data input area. The present invention relates to an information processing device that performs recognition processing.

[0002]

2. Description of the Related Art Conventionally, an information processing apparatus equipped with a coordinate input device as a handwritten character input means recognizes a character input by handwriting, converts it into a character code, and inputs / outputs / stores the code, or the font thereof What is displayed on the screen is known.

In such a handwritten character input process, in order to increase the recognition rate of handwritten input characters such as Chinese characters having a large number of strokes, an input area is provided in which each character is divided into cells, and the characters are input one by one. There is a known method of recognizing.

[0004]

However, in the above-mentioned conventional structure, the size of the character input area is fixed to a certain size. Due to the existence of a character, there is an area hidden behind the character input area, which causes inconvenience in work, and when it is conversely, such as when inputting Chinese characters with a large number of strokes, the specified character input area The size is too small, which causes inconvenience such as a decrease in character recognition rate.

An object of the present invention is to solve the above problems and to provide an information processing apparatus capable of setting an input area of data to be recognized and input to an appropriate size.

[0006]

In order to solve the above-mentioned problems, the present invention has coordinate input means and a data input area on the coordinate input means capable of inputting coordinates.
In an information processing device that performs recognition processing for recognizing input information based on a coordinate sequence input into the data input area, means for instructing a change amount of the size of the data input area, and A structure having means for changing the size of the data input area is adopted.

[0007]

With the above arrangement, the size of the input area of the data to be recognized can be changed as necessary.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 shows the structure of an information processing apparatus adopting the present invention. In FIG. 1, reference numeral 10 is a CPU which comprises a microprocessor and controls the entire apparatus. The control processing procedure of the CPU 10, the display font, etc. are stored in the ROM 11 or the RAM 12, and the CP
To store the work area of U10 and various data,
The RAM 12 is used.

The display circuit 13 is composed of a liquid crystal, a CRT or the like and a memory, and the input tablet 2 of the coordinate input device 20.
It is arranged at the lower part of 1 to display various data such as image characters in the memory, and constitutes a handwriting character input / display unit together with the coordinate input device 20.

In this embodiment, the coordinate input device 20 comprises a digitizer using a resistance film. The coordinate input device 20 has a transparent input tablet 21 using a resistance film, and coordinates are input by pressing an instruction pen 23 on the tablet surface.

The input tablet 21 has ITO on its surface.
It is composed of a PET film and a glass plate on which a resistance film is formed by vapor-depositing or printing such materials as above, and the glass plate and the PET film are arranged so that the resistance film surfaces face each other. And a spacer (not shown) such as a minute silicon rubber is arranged between both of them, and the resistance films of both contact at the pressing point only when the surface of the film is pressed, and the resistance film end portion The coordinates of the pressed point are calculated by the change in the voltage detected at.

That is, conductor patterns are formed at both ends of the resistance film as terminals for measuring voltage or voltage application or potential to the resistance film. The application of a constant voltage to and the measurement of the potential are performed.

In this embodiment, since the input tablet 21 is laminated on the display circuit 13, it is possible to realize an operation feeling as if writing on paper.

FIG. 2 shows a part of the display screen of the display circuit 13 when character recognition input is performed. In the figure, reference numeral 25 is a character input frame in which a plurality of characters are arranged to indicate a region where characters can be input. When writing is performed in the character input frame 25 with the input pen 21 on the input tablet 21 on the character input frame 25, the character pattern is recognized by the CPU 10 using the pattern matching method or the like and is input into the document file. To be done.

In the following, the input / display coordinate systems of the input tablet 21 and the display circuit 13 are in one-to-one correspondence, and the inside of the displayed character input box 25 or the character input box 25 itself is input. It can be operated by the pen 23.

FIG. 3 is a diagram showing the input judgment criteria of the character input frame 25. When the inside of the rectangular area 32 is designated by the input pen 23, character input is performed. Also, the rectangles 32 and 3
When the area between 3 (hatched portion) is designated, it is determined that the operation is performed on the character input frame 25. If the instruction is outside the rectangle 33, it is determined that the input is illegal and the processing is not performed.

In the present embodiment, the size of the character input frame 25 is not fixed but can be changed by operating the input pen 23.

To change the size of the character input box 25,
An operation is performed as if the character input frame 25 displayed on the display circuit 13 is directly grasped and moved by the input pen 23 on the input tablet 21.

FIG. 4 shows a control procedure of the CPU 10 when the size of the character input box 25 is changed. The illustrated procedure is stored in the ROM 11 as a program of the CPU 10.

First, in step S400 of FIG. 4, it is determined whether or not the coordinate input is started. If it is started, the process proceeds to step S401, and if not started, S400 is executed again, and the coordinate input is waited.

In step S401, it is determined whether the input is in the character input box. That is, the rectangles 32 and 33 of FIG.
When the area between is operated by the input pen 23,
It is determined that the input is in the character input box, and the process proceeds to step S402. If not, the process proceeds to step S406.

In step S406, it is further determined whether the instruction is within the character input area. Input of the input pen 23 is shown in FIG.
If the input pen 23 is outside the rectangle 33, it is determined to be an illegal input, and the process ends.

In subsequent step S407, after the coordinate input is completed, the character recognition is performed by using the pattern matching method or the like, and the written character is recognized and input. The recognized character is stored in a predetermined area of the RAM 12 in the form of a code. Since this recognition processing is publicly known, its explanation is omitted here.

On the other hand, in step S402, the coordinate is input from the coordinate input device 20, and if the coordinate input is completed, the process proceeds to step S403, and if not completed, the step S4 is executed again.
Run 02.

In steps S401 and S402,
Input pen 23 for changing the size of the character input frame 25
The coordinate input operation is performed. Here, first, FIG.
The input pen 23 is lowered into the character input frame 25 (area between the rectangles 32 to 33), and then the input pen 23 is input to the desired enlarged position on one side of the character input frame 25 as indicated by reference numeral 38 on the input tablet 21. And drag the input pen 23 up,
The operation to stop the coordinate input shall be performed.

When the coordinate input for changing the size of the character input frame 25 is completed, the CPU 10 calculates the straight line 3 from the input coordinate sequence 37 input in step S403.
The process of approximating 8 is performed.

In the following step S404, the deformation rate of the character frame is calculated from the length of the straight line in the vertical direction. If the vertical length of the character frame is Y and the vertical length of the straight line is ΔY (the sign is + if drawn upward from the character frame, − if it is drawn downward), the rate of change of the character frame R is R = (Y + ΔY) / Y.

Next, in step S405, the display circuit 13
The size of the character input frame 25 displayed on the screen is changed according to the change rate. Here, a method of enlarging or reducing the entire character input frame 25 with the obtained change rate R can be first considered. Further, as shown in FIG. 3, when a certain side of the character input frame 25 is operated, the character input frame 25 is enlarged at a change rate R only in that direction (that is, only in the vertical direction or the horizontal direction).
Alternatively, a method of reducing the size may be considered. Such continuous enlargement / reduction is effective when a scalable font such as a stroke font, an outline font, or a vector font is used.

In addition, the sizes of a plurality of types of character input frames 25 as shown in FIG. 5 are prepared in advance, and the change rate R
May be evaluated in multiple stages and any one of these sizes may be selected.

FIG. 5 shows an example in which five types of character frame sizes are determined according to the display font sizes of five types of dot sizes. The table shown in FIG. 5 is the ROM 1 of FIG.
It should be stored in 1.

Further, since the table of FIG. 5 associates the display font sizes of the five types of dot sizes with the sizes of the five types of character input frames, the continuous variable control of the size of the character input frame is performed. In (1), when the size of an arbitrary character input frame is determined, it can be used to select a display font size suitable for it. At this time, the font size is added to the character code in the RAM 12 as attribute information.

In this way, since it is possible to draw a straight line with the input pen 23 and to change the size of the character frame according to the length thereof, as if the character input frame were directly operated,
With simple operation, without interrupting the character input work for a long time,
The character box size can be input according to the situation or the character to be input. Of course, according to the procedure of FIG. 4, it is possible to continue to input characters as usual without changing the size of the character frame.

The present invention is not limited to the above-described embodiment. For example, when a character input frame for several characters is displayed at one time, a plurality of character frames for the several characters are displayed by the above operation. , Or the entire size may change at once.

The operation for instructing to change the size of the character frame may be any operation as long as it directly operates the character input frame 25. For example, the arrow 61 in FIG. As shown, as the length of the straight line for calculating the character frame change rate, the length of the radial vector component from the character frame region center point may be used, or the component in the other direction may be used. In FIG. 6, reference numerals 32 and 33 indicate boundaries which are recognized as the character input box 25 as in FIG.

It is also possible to give an instruction to change the size of the character input frame using a menu on the display screen, or another switch.

Further, in the above-mentioned embodiment, five kinds of character input frames are used according to the size of the character font. However, more or less kinds may be used according to need.

Alternatively, by using a scalable font such as a stroke font, an outline font, or a vector font, the size of the character input frame can be continuously changed to an arbitrary size corresponding to the character having the dot number of 1 dot unit on the display screen. May be finely changed.

Further, in the present embodiment, the resistance film type digitizer is used as the coordinate input device, but it is needless to say that a digitizer of another type may be used.

According to the above embodiment, by making the character input area variable, the input area for handwritten characters can be changed to the optimum size for the intended work, and unnecessary work / display area is occupied. Without this, an efficient work environment is established, and the recognition rate can be improved by setting a large character input frame for complex characters with many strokes such as Chinese characters. Further, in the present embodiment, since the character input area is not fixed, there is an excellent effect that it is possible to input characters with a character size that the user is normally used to writing without feeling uncomfortable.

[0041]

As is apparent from the above, according to the present invention, the coordinate input means and the data input area in which the coordinate input is possible are provided on the coordinate input means, and the coordinate input in the data input area is provided. In an information processing apparatus that performs recognition processing for recognizing input information based on a column, means for instructing a change amount of the size of the data input area, and means for changing the size of the data input area based on the change amount Since it adopts a configuration that has, it is possible to change the input area of the data to be recognized to the optimum size for the target work, if necessary,
An efficient work environment can be provided without unnecessarily occupying other work / display areas, and the recognition rate can be improved by setting a large input area for complex data with many strokes such as kanji. It has an excellent effect that it can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a structure of an information processing apparatus adopting the present invention.

FIG. 2 is an explanatory diagram of a character input screen of the information processing apparatus adopting the present invention.

FIG. 3 is an explanatory diagram showing criteria for determining input coordinates of the information processing apparatus adopting the present invention.

FIG. 4 is a flowchart showing an input control of the information processing apparatus adopting the present invention.

FIG. 5 is an explanatory diagram showing various character frames and font sizes of the information processing apparatus adopting the present invention.

FIG. 6 is an explanatory diagram showing a method of determining a character box change rate of an information processing apparatus adopting the present invention.

[Explanation of symbols]

 10 CPU 11 ROM 12 RAM 13 Display Circuit 20 Coordinate Input Device 21 Input Tablet 23 Input Pen 25 Character Input Frame

Front page continuation (72) Inventor Ryozo Yanagisawa 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Noriyuki Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Katsuhiko Sakaguchi 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Yoji Sugawara 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (2)

[Claims] 1. A coordinate inputting means, and a data inputting area capable of inputting coordinates on the coordinate inputting means, and performing recognition processing for recognizing input information based on a coordinate sequence input into the data inputting area. An information processing apparatus, comprising: a means for instructing a change amount of the size of the data input area, and a means for changing the size of the data input area based on the change amount. 2. The information processing apparatus for performing recognition processing for recognizing an input character based on a coordinate sequence of handwritten characters input into the data input area, wherein the input information is a handwritten character, The information processing apparatus according to claim 1, wherein the size is associated with the size of the font displayed in the data input area.