JPH1125210A - Pen input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to quickly convert an incorrect phrase also into a correct phrase and to obtain effective conversion efficiency by referring to a phrase dictionary, and when an error exists in an inputted phrase consisting of two characters or more, automatically executing correction processing. SOLUTION: A phrase correction key is depressed to set up a phrase correction mode (S101). Whether an execution key is depressed or not is checked (S108) and whether characters exist in a tablet input frame or not is judged (S102). When characters inputted in the tablet input frame, handwritten character recognition processing is executed (S103). Then whether a KANJI (Chinese character) input exists in one character before or not is judged (S104), and when a KANJI input exists, a phrase table is referred to (S105) and whether the recognized characters include an error as a phrase or not is judged (S106). In the case of judging the existence of an error in the recognized characters, the recognized character string is corrected to correct characters (S107).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing function such as a personal digital assistant (PDA), a high-performance electronic organizer, and a handheld PC (personal computer), and a function for a user to input and edit characters with a pen. The present invention relates to an input device including:

[0002]

2. Description of the Related Art Conventionally, in a pen input device for inputting handwritten characters with a pen, characters are input by handwriting in an input frame of a tablet, and recognized characters are displayed in an intermediate frame.

At this time, when trying to input a idiom, for example,
Even if you enter the wrong word “specialty” as “specialty”,
The CPU recognizes the character, converts it to "special", and displays an erroneously input character in the intermediate frame.

[0004] At this time, if the user notices an error and attempts to correct the error, the erroneous input character in the intermediate frame is deleted once by touching the backward or delete function key with a pen, and the character is again input by handwriting from the input frame. .

[0005] In addition, as a correction method when an erroneous recognition is made on the intermediate frame, the cursor is moved to the erroneously recognized character, and by touching the erroneously recognized character with a pen, the character resembles another character recognized by handwriting input. The CPU also displays character candidates determined by the CPU and makes corrections.

[0006]

However, when "gate" is erroneously input as "question" by handwriting, there is no "gate" in the character candidates, and the input is performed again by the correction method as described above.

In the above-mentioned prior art, even when an erroneous idiom is input, the CPU recognizes the character as an erroneous character and performs a conversion operation. The correct character does not appear in
Eventually, I had to delete the wrong character and re-enter the correct character.

[0008] An object of the present invention is to provide a pen input device which pays attention to the above-mentioned problems and which can convert even an erroneous idiom into a correct idiom immediately, and has a high conversion efficiency.

[0009]

The object of the present invention is to provide at least storage means for storing a program, a CPU for controlling the entire apparatus by the program, user data storage means for storing user data, Pen input means for inputting instructions for editing characters, symbols, or functions with a pen, display means for displaying such information or editing results, input / output means for inputting / outputting information to / from external devices, and A pen input device comprising a power supply means for supplying power to the system of the present invention, comprising a idiom dictionary, and referring to the idiom dictionary for two or more characters inputted from the pen input means, This is achieved by a configuration in which a correction process is automatically performed when an erroneous input is made.

In the above configuration, there are provided input means for inputting information, a dictionary and a CPU for examining a character relationship before and after a character input from the input means, and display means for displaying the character. Therefore, it is possible to recognize characters before and after the character input from the input means, correct any incorrect input, and display the correct character on the display means.

[0011]

An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a simplified control flowchart of the present invention, FIG. 2 is a portable information terminal device of an embodiment provided with a pen input device of the present invention, FIG. 3 is a control block diagram, FIG. Is a display screen of one embodiment of the present invention.

The personal digital assistant shown in FIG. 2 manages personal information such as a schedule, an address book, a report, a handwritten word processor function, a memo pad, etc., and personal computer communication using a built-in modem, transmission and reception of mail, transmission and reception of facsimile, and the like. And the like.

Next, the hardware configuration will be briefly described with reference to FIG.

The CPU 3 performs processing based on the program written in the program memory 4.

The apparatus according to the present invention comprises a DRAM 6 as a work area when performing the program processing, a password,
A flash memory 5 for storing user data such as a schedule and an address book; an LCD 2 for displaying data such as a schedule and an address book; an LCD controller 8 for driving the LCD 2; VRAM 7 for storing display data, tablet 9 for the user to input information to the portable information terminal device, F for transmitting and receiving information such as FAX and e-mail using a telephone line.
An AX / MODEM 11, an RS232C circuit 12 for transmitting and receiving data to and from an external device such as a personal computer or a printer, an infrared communication circuit 13, and a power supply circuit 10 for supplying power to the entire system.

FIGS. 4, 5 and 6 show examples of new input screens for a schedule of a portable information communication terminal equipped with the present invention.

The input method will be briefly described with reference to FIG.

The input pad 14 is displayed according to input means required for each application of the portable information communication terminal. This input pad is a handwriting input pad in the present invention.

[0020] Then, characters can be input to the application, character strings of the application can be edited, and input such as handwriting recognition and kana-kanji conversion can also be performed. Applications that can be input using the handwriting input pad include a schedule, an address book, a memo pad, and a report.

Further, the user can freely change the input pad 14 by using the "input switching" 15 or the direct switching key 16 such as "handwriting" or "symbol".

In the handwriting input pad, there are four input frames 17 in which characters can be input by hand using a pen (particularly, the number of input frames is not specified). They are recognized in the order of writing and displayed in the intermediate frame 18.

The recognition targets of handwriting recognition are "hiragana", "katakana", "kanji", "alphanumeric", "symbol" and the like.

The character string input from the handwriting input frame 17 is temporarily displayed in the intermediate frame 18 as an editing area.

Several functions can be executed as functions on the character strings in the input frame 17 or the intermediate frame 18.

For example, on the intermediate frame 18, editing by the function keys 19 is possible until the user fixes the character string to the application.

The cursor 20 moves to the right of the character displayed in the intermediate frame 18.

Scroll button 21 in input pad 14
Are keys for moving the cursor of the intermediate frame 18.

In the case of kana-kanji conversion by handwriting input, the recognized character is displayed in a hiragana intermediate frame as a recognized reading state.

In the reading state, a dotted underline is displayed in the character string.

In this state, the function key 19
By touching the "conversion" key in the "", the kana-kanji conversion is performed, and the display is in an undetermined state.

In the undetermined state, an underline is displayed on the character string.

By touching the "execute" key or the "line feed" key in the function keys 19, the character string in an undetermined state is displayed as a determined state on the application.

The "reverse" key deletes the character to the left of the cursor position.

"Delete" deletes the character to the right of the cursor position.

In "recognition", the characters in the input frame are recognized and displayed in the intermediate frame.

"Space" inserts a space before the cursor.

The functions of these functions can be executed by the function keys 19 on the right of the input box.

Next, the operation and processing of the present invention will be described with reference to the flowchart of FIG. 1 and FIGS.

Touching the idiom correction key 22 shown in FIG.

A check is made at 108 as to whether the execution key of the function keys 19 has been pressed.

Next, it is determined at 102 whether or not there is an input character in the tablet input frame.

If there is no input on the tablet, the input is waited. If there is an input on the tablet input frame, a handwritten input character recognition process is performed at 103.

Next, at 104, it is determined whether or not there is a kanji input before one character. If there is a kanji input, the idiom table is referenced at 105, and the character recognized at 106 has an error as an idiom. Determine whether or not.

If it is determined that there is an error in the character recognized at 106, the character string recognized at 107 is corrected to a correct character.

For example, as shown in FIG. 4, when "specialized" is to be entered and "expert" is erroneously entered, "question" is corrected to "gate" at 106, and FIG. The correction is displayed as follows.

Also, as another example, in the same manner, when the input of "specialty" is input as "Hakumon",
In step 6, "Haku" is corrected and displayed as "Dedicated".

At this time, if there are a plurality of candidates for correct idioms, the entire idiom is displayed as a character candidate.
You may make it a user select.

As described above, by practicing the present invention, even when an erroneous idiom is input by handwriting at the time of inputting an idiom, the erroneous idiom is automatically corrected, thereby improving the handwriting recognition input efficiency in the pen input device.

In the embodiment of the present invention, the correction process is performed by referring to the kanji of one character before and after the idiom as two characters, but the number of characters of the idiom is not limited and is not particularly limited. The character is not limited to one character before and after.

Although the correction process is performed fully automatically, the present invention is not limited to this, and a configuration may be adopted in which the user instructs the start of the correction at an arbitrary time.

It is convenient if there is a configuration for notifying the user that an erroneous input has been made.
Sounding an alarm or displaying a warning window on the screen can be considered.

[0053]

As described above, according to the present invention, even if an idiom is erroneously input by handwriting input with the pen input device, the idiom is corrected and displayed automatically or automatically.
This has the effect of providing a pen input device with high handwriting recognition effect input efficiency.

[Brief description of the drawings]

FIG. 1 is an operation flowchart of the apparatus of the present invention.

FIG. 2 is an external view of a portable information terminal device.

FIG. 3 is a block diagram illustrating a configuration of a portable information terminal device.

FIG. 4 is a new schedule entry screen.

FIG. 5 is a new schedule entry screen.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Housing of a portable information terminal device, 2 ... LCD, 3 ... CP
U, 4 ... Program memory, 5 ... Flash memory, 6
... DRAM, 7 ... VRAM, 8 ... LCD controller,
9 Tablet, 10 Power circuit, 11 FAX / MO
DEM, 12 RS232C circuit, 13 infrared communication circuit, 14 input pad, 15 input switching, 16 direct switching key, 17 input frame, 18 intermediate frame, 19 ...
Function keys, 20: cursor, 21: scroll button, 22: idiom correction key.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI G06K 9/72 G06F 15/20 550J

Claims (7)

[Claims] 1. A storage means for storing at least a program, and a CPU for controlling the entire apparatus by the program.
And user data storage means for storing user data;
Pen input means for the user to input desired characters, symbols, or instructions for editing functions with the pen, display means for displaying the information or the edited result, and input / output of information with an external device. A pen input device comprising input / output means and power supply means for supplying power to these systems, comprising a idiom dictionary, and a idiom dictionary for two or more characters input from the pen input means. A pen input device that automatically performs correction processing when there is an erroneous input of a idiom that has been referred to. 2. The pen input device according to claim 1, further comprising a idiom correction start button. 3. A storage means for storing at least a program, a kana-kanji conversion dictionary, a CPU for controlling the whole apparatus by the program, a user data storage means for storing user data, and a character or symbol desired by a user. Or pen input means for inputting a function editing instruction with a pen, display means for displaying the information or the editing result, and input / output means for inputting / outputting data between external devices. In a pen input device comprising a power supply unit for supplying power, a kanji kanji having two or more characters input from the pen input unit is referred to the kana-kanji dictionary, and an erroneous input is made in the input idiom. A pen input device characterized by automatically performing a correction process. 4. The pen input device according to claim 3, further comprising a idiom correction start button, wherein the idiom correction processing is performed by operating the idiom correction start button. 5. The pen input device according to claim 3, wherein a kanji / kanji character string input from the pen input means is referred to as a kana / kanji conversion dictionary, and automatically when an erroneous input is made in the input idiom. Pen input device that performs correction processing. 6. The pen input device according to claim 1, further comprising a voice output unit for alarm, wherein the alarm input device performs a process of sounding an alarm when an erroneous input is made. 7. The pen input device according to claim 1, further comprising an erroneous input warning window, and performing a process of displaying a warning window when an erroneous input is made.