JPH0721171A - Key input correcting device - Google Patents

Abstract

PURPOSE:To correct an error in key input by using information regarding the arrangement of a keyboard and a history of key input. CONSTITUTION:A character is inputted from the keyboard 101 and an input history part 104 stores the history of key input from the keyboard 101; and a condition table storage part 105 stores a condition record consisting of conditions regarding the input character and input history and a character to be outputted when the conditions are met and a decision control part 106 decides a character for outputting a character that the person who has done the key input intends as much as possible even if the key input is wrong by using the character inputted from the keyboard 101, the contents of the input history storage part 104, and the contents of the condition table storage part 105. Then an output part 103 outputs the character that the decision control part 106 decides.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key input correction device for correcting an error in a character input from a keyboard by using information about the arrangement of the keyboard in a work such as document creation by a word processor.

[0002]

2. Description of the Related Art As a method for inputting a document using a Japanese word processor or the like, there are generally a Roman character input method and a kana input method. In the case of the Romaji input method, the sequence of readable Roman characters is converted into a kana and output once on the display device, and each time a word or phrase is input, it is converted into a character string with kanji kana characters and output on the display device. Is performed. In the case of the kana input method, a kana on the keyboard is input, so it is output directly on the display device, converted into a character string containing kanji and kana for each word or phrase, and output on the display device. Perform processing.

For example, in the Roman alphabet input system, in order to input "invention", "hatume" is input from the keyboard.
When the key sequence "i" is entered, it is automatically converted to "Hatsumei" and output on the display device, and when a command for converting to Kanji is input, "
"Invention" is output. Of the above processes, consider the process of automatically converting from Roman letters to Kana.

FIG. 8 is a conceptual diagram showing a correspondence between an input Roman character string and a character string converted and output on a display device. In FIG. 8, for example, in step 01 "
"h" is output when only "h" is input, "ha" is output when "ha" in step 02 is input, and "h" is output when "hatumei" is input in step 07 Is output.

Here, the "a" key and the "s" key, the "e" key and the "a" key should be entered using the keyboard having the key layout shown in FIG.
Suppose that the r'keys are mistakenly entered as "hstumri" because they are next to each other on the keyboard. In this case, in the conventional Roman alphabet input processing system,
As shown in FIG. 9, when "hs" is input, it cannot be read in Roman letters, so it is output as "hs".
Furthermore, processing such as sounding a buzzer was performed to warn the document creator that the input was incorrect. Although there is a processing system that interrupts the output at this point, depending on the processing system, as in step 04 and subsequent steps of FIG. 9, only the part that can be read in Roman characters is converted into a kana and the processing is continued.

The same processing as that performed in the Roman character input method described above can be performed in the kana input method as well. For example, when "" (voiced point) is input after "," a buzzer sounds. It is possible to perform processing such as issuing a warning.

[0007]

However, in the above method, when the input is apparently incorrect, a warning is given to the document creator by a buzzer or the like, but the character entered by mistake is written by the document creator. Is not automatically interpreted as the character intended by the author, and the author must correct and re-enter the character after an incorrect key input, which is a mistake in correcting the incorrect key input. It had a problem that it took time and effort.

In view of the above-mentioned conventional problems, the present invention corrects the characters input when the key input is apparently incorrect to a character that can be estimated as intended by the document creator, and outputs the corrected characters. It is an object of the present invention to provide a key input correction device capable of preventing a decrease in work efficiency due to correction of an input error.

[0009]

In order to achieve the above object, the invention described in claim 1 provides a keyboard for inputting characters and information on the key arrangement of the keyboard from a series of characters input from the keyboard. It is characterized in that it is provided with a determination unit that determines an output character by a predetermined method using the output unit and an output unit that outputs the output character determined by the determination unit.

Further, the invention according to claim 2 relates to an input history storage unit in which the judgment unit stores a history of characters input from a keyboard, an input character field in which characters are stored, and a key input history. It consists of an input history field that stores the condition and an output character field that stores the character that should be output when the character stored in the input character field is input under the condition stored in the input history field. The condition table storage unit that stores the condition records that are stored, and the condition table that stores the condition records in which the characters input from the keyboard match the characters in the input character field and the contents of the input history storage unit match the conditions of the input history field. And a determination control unit that determines a character in the output character field of the condition record retrieved from the storage unit as an output character. .

[0011]

According to the first aspect of the present invention, when an apparently incorrect character is input from the keyboard, the determination unit is determined in advance from the sequence of characters input from the keyboard by using the information regarding the key arrangement of the keyboard. The output character is determined by the method described above, and the output unit outputs the output character. Therefore, it is possible to automatically correct and output the character that can be estimated as intended by the document creator.

According to the second aspect of the present invention, the condition table storage unit stores a condition record including an input character field, an input history field, an input character, and an output character field set corresponding to the input history. Since, is used, output characters can be determined and output at high speed with a simple configuration.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the key input correction device of the present invention will be described below with reference to FIGS. FIG. 1 shows a block diagram of a key input correction device of this embodiment. In FIG. 1, 101 is a keyboard, 102 is a determination unit, and 103 is an output unit. The determination unit 102 includes an input history storage unit 104,
The condition table storage unit 105 and the determination control unit 106 are included.

The keyboard 101 has the key arrangement shown in FIG. The condition table storage unit 105 stores a condition record having an input character field, an input history field, and an output character field as shown in FIG. 3 in a table format. The input history storage unit 104 stores the history of a predetermined number of characters key-input from the keyboard 101.

In FIG. 3, condition records 01 to 34 are shown. For example, the condition record 01 has the character'w '.
Is input (the character in the input character field is'
w '), if the immediately preceding key input character stored in the input history storage unit 104 is a consonant excluding'w' (the input history field is "consonant excluding w"), the output character is determined to be'a '. (The output character field is'a '). In the condition record 02, when the character'w 'is input (the character in the input character field is'w'), the key input character immediately before stored in the input history storage unit 104 is''w '.
If it is other than "consonants other than" (the input history field is "other than the above") ", it means that the output character is determined as" w "(the output character field is" w "). In addition, when the character “3” is input (the character in the input character field is “3”), the condition record 11 indicates that if the immediately preceding key input character stored in the input history storage unit 104 is a consonant (input history The field is "consonant"), which means that the output character is determined to be "e" (the output character field is "e"). further,
In the condition record 33, when the character'a 'is input (the character in the input character field is'a'), the input history storage unit 1
It means that the output character is determined to be'a '(the output character field is'a') regardless of the contents of 04 (the input history field is "unquestioned").

A specific operation of the key input correction device of this embodiment having the above-described structure will be described below.
Here, it is assumed that the condition table storage unit 105 stores the condition record table shown in the conceptual diagram of FIG. However,
Although the condition record 34 and the following are omitted in FIG. 1, all the characters other than those appearing in the input character field of the condition record 01 to the condition record 33 are not related to the contents of the input history storage unit 104 when the character is keyed. It is assumed that a condition record (a condition record similar to condition record 33) meaning that the characters input by key input is output as is.

In the condition record table of FIG. 3, when a roman character is input according to the romaji-kana correspondence table, a part of which is shown in FIG. Is for correcting. That is, for example, condition records 01, 03 and 0
As shown in FIG. 5 (a), reference numeral 5 indicates “w” when keys “w”, “s”, and “z” near the key “a” are consonants except “w” when the immediately preceding key input is a consonant. If there is a key input, it is thought that this is because the user has accidentally entered'a 'where the key should have been entered (other than the consonant input,'
w'cannot be input) to output'a '(condition record 01), and the previous key input is'
When there is a keystroke of's 'when it is a consonant excluding s',
It is thought that this is because you have mistakenly input'a 'where you should key-in (' s 'cannot be input after the consonant other than the consonant input) and output'a'. (Condition record 03), if there was a key input of'z 'when the previous key input was a consonant except'z', this is'
It is considered that the user has mistakenly input a'key 'where it should be keyed (' z 'cannot be input after the consonant other than the consonant input) and outputs'a' (condition record 05), and the condition records 02, 04, and 06 do not cause a problem even if there is a'w 'key input when the previous key input is other than a consonant except'w'. Therefore, output'w 'as it is (condition record 02), and the previous key input is'
Even if there is a key input of's 'except for consonants other than s', this is not a problem, so output's 'as it is (condition record 04), and the previous key input is'z'.
Even if there is a key input of'z 'except for consonants other than, since this does not cause a problem, it is instructed to output'z' as it is (condition record 06).

Condition record 07 to condition record 32
Is the same as the instruction related to the key input of the vowel'a 'as described above, but each vowel'e', 'u', 'other than'a'
This is done for i'and'o '(Fig. 5
(See (b) to (e)). The condition record 33 instructs unconditionally to output'a 'because it is difficult to presume that the key input is wrong at any time when the key input is'a'.

The condition table storage unit 105 stores the condition record table shown in the conceptual diagram of FIG.
Does not remember any keystroke history,
In order to input "Hatsumei", the keyboard 101 correctly inputs the character sequence "hatumei" by inputting the Roman characters, and when some adjacent keys on the keyboard 101 are mistakenly input and the character sequence "hstumeri" is input. Consider the case where "" is entered.

The keyboard 101 has a character sequence "hatu".
6 shows how the key input correction device operates when "mei" is input. FIG. 6 shows "hatume".
It represents the output of the output unit 103 and the kana corresponding to the output when each character “i” is sequentially input by the keyboard 101. In this case, the keyboard 101
Even if the history of the key input from and the key input history stored in the input history storage unit 104 and the condition record table stored in the condition table storage unit 105 shown in FIG. 3 are used, the determination control unit 106 determines that there is an error in the key input. The output of the output unit 103 cannot be made the same as the input from the keyboard 101.

The keyboard 101 has a character sequence "hstu".
7 shows a state of the operation of the key input correction device when "mri" is input. In the case of FIG. 7, the table of FIG. 3 stored in the condition table storage unit 105 at the time of step 02. Since it matches condition record 03 of (key input is'
s', the key input immediately before being stored in the input history storage unit 104 is a consonant excluding's'), and the determination control unit 106 sets's'.
Is determined to be an input error of'a ', and the output unit 103
Outputs'a '. Similarly, at the time of 06, since it matches the condition record 09 of the table of FIG. 3 stored in the condition table storage unit 105 (the key input is'r ', the input history storage unit 104
The key input immediately before being stored is a consonant other than'r '), the determination control unit 106 determines that'r' is an input error of'e ', and the output unit 103 outputs'e'. In this way, the output intended by the person who performed the key input can be obtained even for the key input error caused by the arrangement of the keys on the keyboard 101.

As described above, according to the present embodiment, the input from the keyboard 101 is apparently erroneous by using the characteristic of the arrangement of the keys on the keyboard 101 and the way of connecting characters in the Roman alphabet input in the condition table storage unit 105. If it is, it is assumed that another character was intended to be input, and by outputting it, a series of operations is performed to delete the entered character and re-enter the key in response to a key input error. Without it, it becomes possible to create a document.

In this embodiment, the key input error that occurs when inputting Roman characters is corrected. However, when inputting a kana character, a character immediately after a character such as "no" without a dakuten is added.
When "" (voiced point) is entered, "
It is also possible to assume that the character of the key near "" is to be entered by mistake and correct it.

Further, in the present embodiment, in the condition table storage unit 105, for example, the condition records 33 and below in FIG.
In any case, the condition record for instructing to output the character input from the keyboard 101 as it is from the output unit is stored, but if the character that does not appear in the input character field of the condition table storage unit 105 is output as it is. You may decide.

Further, in the present embodiment, although only one character is estimated for one key input error, a plurality of candidates are presented so that the person who performs the key input selects the intended one. It is also possible to configure. Further, in the present embodiment, for example, it is estimated that “hs” is the one in which “ha” should be input by mistake, so that the previous input (here, “h”) is correct and the later input (here, “s”). ') Was corrected as being erroneous, but without being limited to that, it may be configured to perform estimation even in the case where the later input is correct and the earlier input is erroneous.

[0026]

As described above, according to the first aspect of the present invention, when the key input is apparently incorrect, the input character can be formed by using the information about the arrangement of the keys on the keyboard. As long as it is possible to automatically correct the characters that the creator of the document can infer, it is possible to prevent the reduction of the work efficiency due to the manual correction of the key input error, and the practical effect is great.

Further, according to the second aspect of the invention, since the condition table storage section including the input character field, the input history field, the input character and the output character field set corresponding to the input history is used. , The output character can be determined and output at high speed with a simple structure.

[Brief description of drawings]

FIG. 1 is a block diagram of a key input correction device according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram showing an example of an arrangement of keys on a keyboard.

FIG. 3 is an explanatory diagram of contents of a condition table storage unit in the embodiment of the present invention.

FIG. 4 is an explanatory diagram of a Roman character kana correspondence relationship.

FIG. 5 is an explanatory diagram of keys that may be erroneously input due to the key arrangement of the keyboard.

FIG. 6 is a conceptual diagram showing a state of input and output when a correct Roman character input is performed in one embodiment of the present invention.

FIG. 7 is a conceptual diagram showing a state of input and output when wrong Roman character input is performed in the embodiment of the present invention.

FIG. 8 is a conceptual diagram showing how a roman character is converted into a kana character in conventional roman character input.

FIG. 9 is a conceptual diagram showing a state of output when an erroneous key input is performed in conventional Roman character input.

[Explanation of symbols]

 101 keyboard 102 determination unit 103 output unit 104 input history storage unit 105 condition table storage unit 106 determination control unit

Claims (2)

[Claims] 1. A keyboard for inputting a character, a determination unit for determining an output character from a sequence of characters input from the keyboard by a predetermined method using information about a key arrangement of the keyboard, and a determination unit. A key input correction device comprising: an output unit that outputs the output character. 2. A determination unit, an input history storage unit that stores a history of characters input from a keyboard, an input character field that stores characters, and an input history field that stores conditions related to key input history. A condition table storage unit that stores a condition record composed of an output character field that stores the character to be output when the character stored in the input character field is input under the condition stored in the history field And the condition record searched by searching the condition table storage unit for a condition record in which the characters input from the keyboard match the characters in the input character field and the contents of the input history storage unit match the conditions of the input history field. 2. The key input correction device according to claim 1, further comprising a determination control unit that determines a character in the output character field of 1. .