JP2001350560A - Method for conducting japanese input by one hand, recording medium, and information input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily input Japanese by one hand with small-sized input keys. SOLUTION: One of the characters ('a' to 'wa') of the ('a' stage) assigned to a ten-key 16 is inputted by one hand and converted into the characters of the ('a' stage) to ('o' stage) by one-hand operation of a return key 12 for KANA (Japanese syllabary) or into the characters of the ('a' stage) to ('o' stage) by operating a multidirectional key 15 in five directions of ('a') to ('o') by one hand. Further, the inputted character or converted character is converted into characters including contracted sounds or long consonants by operating a simple conversion key 14 by one hand or into voiced consonants or 'p'-sounds by operating a voiced consonant key 13 by one hand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method, a recording medium, and an information input device for inputting Japanese with one hand using a small input key provided on a cellular phone or the like. About.

[0002]

2. Description of the Related Art For example, in a cellular phone, characters can be input to a telephone directory and an address book or a character at the time of an e-mail by numbers, katakana, hiragana, kanji, and the like.

[0003] In a mobile phone, the number of input keys is limited as the mobile phone becomes smaller and lighter. For this reason, in a mobile phone, characters (A line, line, line,... Line) are normally assigned to numeric keys from 0 to 9, respectively.

For example, when characters included in the same line (a line, line, line, etc.) are successively input, the target (a line, line, line, ... line) After the characters on any of the lines are called, the target characters included in each line are selected using the horizontal movement key or the like.

In the case of inputting a sound such as (Zo) or (B), once (S) or (H) is called, for example, a cloud point is selected. In addition, when inputting a repetitive sound such as (（) or (ゃ), the uppercase character (よ) or (や) is called once, and then (yo) or (や) is converted to lowercase using a lowercase conversion key or the like. Or, if there is no lowercase key, (Y) + (Y → Y) + (Y → Y) + (Y → Y) + (Y → Y) + (Y → Y)
There is also a method of converting to lower case by using such a method.

[0006] For example, portable communication terminals and the like include:
There is a small keyboard that is reduced from a large keyboard.

In such a small keyboard, vowel keys and consonant keys are assigned in the same row of keyboards, so that character input can be performed relatively easily as compared with input keys of a mobile phone. I have.

[0008]

However, in the above-mentioned portable telephone, for example, the steps (steps ...
When you try to input "Ekase ...", you need to operate the input key 5 times and 4 times, respectively. There is a problem that it takes.

[0009] By the way, on a mobile phone, when the user tries to enter (O), the input key of (A) is changed to (A) + (A → I).
It is necessary to perform five operations, such as + (A → U) + (A → E) + (A → O).

[0010] Further, in the mobile phone, when the same line is continuously input, a different input method is used, so that the operation of the input keys is liable to be confused.

[0011] In the case of a mobile phone, when a muddy sound such as (Zo) or (Ba) is input, as described above, it is necessary to select (D), for example, after calling (SO) or (H) once. Therefore, there is a problem that it takes time and effort to operate the input keys as compared with the case of inputting ZO (Zo) or BA (B) in the case of inputting Roman characters on a normal keyboard.

By the way, on a mobile phone, when the user tries to enter (Zo), the input key of (S) is changed to (S) + (S → S)
After operating five times, such as + (sa → su) + (sa → se) + (sa → so), select the turbid point.

Further, in the case of a mobile phone, for example, when inputting a character including a murmur, such as (Ki), after inputting (Ki) once in the above-described procedure, input (Ki), and further input (Ki). It has to be converted to lowercase, which takes time and effort to input. By the way, in the case of the Roman character input of a normal keyboard, it is possible to intuitively input, for example, KYA. In addition, when a voiced sound is input to a character including a repetitive sound such as (Gyu), it is necessary to select a clouded point immediately after calling (G) as described above. In this case, if you accidentally input (Kyu), you will not be able to input the muddy sound as it is, and you will have to input it again, and it will take time and effort to operate the input keys. is there.

On the other hand, a portable communication terminal or the like having the above-mentioned small keyboard not only lacks portability than a portable telephone, but also has a disadvantage that it is difficult to handle because the input keys of the small keyboard are extremely small. Further, in a small keyboard such as a portable communication terminal, although vowel keys and consonant keys are assigned in the same keyboard, it is difficult to distinguish between vowel keys and consonant keys.
There is also a problem that confusion easily occurs in each input.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and a method, a recording medium, and information for performing one-handed Japanese input with which one can easily input Japanese using a small input key. An input device can be provided.

[0016]

According to a first aspect of the present invention, there is provided a method for performing Japanese input with one hand, wherein one of the characters up to (A to W) of (A) assigned to the numeric keypad is used with one hand. A first step of inputting, and a second step of converting any of the input characters (A to W) into characters of (A) to (D) by one-hand input operation of a kana return key. And a step of: In the first and second steps, any one of the input characters (A to W) is operated with one hand in multiple directions (A) to (O) using the multidirectional key ( It is possible to include a third step of converting the characters into (a) to (b). In the third step,
By double-clicking one of the multi-directions (a) to (o) with one hand, a fourth step of continuously inputting characters on the same line can be included. In addition, the first to fourth steps include a fifth step of converting the input character or the converted character into a character including a tongue or a prompt sound by one-handed operation of the simple conversion key. Can be. In addition, the first to fifth steps can include a sixth step of converting an input character or a converted character into a voiced sound or a semi-voiced sound by one-handed operation of a voiced sound key. . In addition, the first to fifth steps can include a seventh step of inputting a voiced sound into a character including a converted sound or a prompt by one-handed operation of a voiced sound key. Further, the second, third, and fourth steps can include an eighth step of changing an input character by using both a kana return key and a multidirectional key. The recording medium according to claim 8 is characterized in that a program indicating the second to eighth steps is recorded. The information input device according to claim 9, further comprising: a ten-key for inputting one of the characters up to (A-wa) in (A) and one of the characters up to (A-W). Characters
It is provided with a kana return key for converting characters to (A) to (U). Also, the input (Ah ~
Use the multi-directional key to select one of the characters
Operate with one hand in multiple directions of ~ (O) ~ (Odan) ~ (Odan)
Character. In addition, the multidirectional key can double-click any one of the multidirectional keys (a) to (o) with one hand so that characters on the same line can be continuously input. In addition, the input character can be converted into a character including a melody or a prompt by one-handed operation of the simple conversion key. Further, the input characters can be changed by using both the kana return key and the multidirectional key. Further, the input character can be converted into a voiced sound or a semi-voiced sound by one hand operation of the voiced sound key. Also,
The voiced sound can be input to the converted character including the voiced sound or the prompting sound by one-handed operation of the voiced sound key. In the method and the recording medium for performing Japanese input with one hand according to the present invention, the keys are assigned to the numeric keypad (stage).
One of the characters up to (a-wa) is input with one hand, and any of the characters up to (a-wa) is input by one-hand input operation of the kana return key (a)-( (A) to (A) to (A) to (O) by multi-directional keys with one hand to convert to (A) to (B) characters, and a simple conversion key One-handed operation converts an input character or converted character to a character containing a murmur or a prompting sound. And so on.

[0017]

Embodiments of the present invention will be described below.

FIG. 1 is a diagram showing a mobile phone according to an embodiment of the method for performing Japanese input with one hand according to the present invention, and FIG.
FIG. 3 is a flowchart for explaining a method of performing Japanese input with one hand in the mobile phone of FIG. 1, and FIGS.
FIG. 5 is a diagram showing another example of the multidirectional key of FIG. 1 for explaining a method of performing Japanese input with one hand on a mobile phone.

A portable telephone 10 as an information input device shown in FIG. 1 has a display 11, a key return key 12, a voice sound key 13, a simple conversion key 14, a multidirectional key 15, and a numeric keypad 16.

The display 11 has a key return key 1
2, voice sound key 13, simple conversion key 14, multi-directional key 1
5. Display information such as characters input with one hand using the numeric keypad 16.

The key return key 12 is, for example,
~ (Dan) input is facilitated. Here, (Adan) ~
(Stage) is as follows.

(Adan) → (Akada Tanayama) (Idan) → (Hikiyuri to Ikishichi) (Udan) → (Usutsutsunu Fumuyorun) (Edan) → (E Let's get rid of it) (Odan) → (Morning with heart)

The sound key 13 is, for example,
Is used to input a muddy sound such as () or (ぴ).

The simple conversion key 14 is, for example,
It is used when inputting a character including a repetitive sound or a prompting sound such as (ki) (ky) (ky) (shi) (sha) (sha).

The multi-directional key 15 has, for example, a pentagonal shape and can be operated in five directions (A to A). The multidirectional keys 15 can be operated in the directions of (A to O) to input characters of (A) to (O).

The ten key 16 is used to input a dial (0
9) and function keys such as * and #. Characters from (A) to (A) are assigned to the input keys (0 to 9), respectively. Further, for example, every time the input key of (1) is operated, the conversion may be performed in the order of (A) → (I) → (U) → (E) → (O).

Next, a method of performing Japanese input with one hand in the mobile phone 10 having such a configuration will be described.

First, for example, when the character "koe" is input and displayed on the display 11, it can be easily input by using the return key 12 of the kana.

That is, first, the input key (2) in the numeric keypad 16 is operated to display the character () on the display 11 (step 201). Next, when the key 12 is operated once,
Is converted to the (ko) character (step 202,
203).

That is, the row of (K) is (Kakikukeko), and every time the key return key 12 is operated once,
The character of () is converted in the order of (→ ko → ke → ku → ki → ka). In addition, when the character of (e) is input after the character of (ko), after operating the input key of (1) in the ten keys 16 to display the character of (a) on the display 11, When the kana return key 12 is operated twice,
Is converted to the (e) character. In this case, the character “koe” can be displayed on the display 11 by a total of five operations.

This is briefly described as follows: (K) + Kana return key 12 → (A) (A) + Kana return key 12 + Kana return key 12 → (E)

By the way, if you try to input (call) using the input key of a conventional mobile phone, (ka) + (ka → ki)
+ (Ka → ku) + (ka → ke) + (ka → ko) + (a) + (a → i) + (a → u) + (a → ue)
Input operation is required twice.

For example, when the character "(Koe)" is input and displayed on the display 11, the multidirectional key 1
5 can be easily input.

That is, first, the input key (2) in the numeric keypad 16 is operated to display the character () on the display 11 (step 204). Next, when the multidirectional key 15 is operated in the direction of (O),
The character of () is converted to the character of () (steps 205 and 206).

By the way, when the character () is displayed and the multidirectional key 15 is operated in the direction (A), the character () remains as the character (A). again)
Is displayed, and the multidirectional key 15 is operated in the direction of (i), the character of (ka) is converted into the character of (ki) of (ii). When the multi-directional key 15 is operated in the direction of (U) while displaying the character of (KA), the character of (KA) is converted to the character of (U) in (U). When the multi-directional key 15 is operated in the direction of (e) while the character of (ka) is displayed, the character of (ka) is converted to the character of (ke) of (e).

Therefore, when the character of (e) is input after the character of (ko), the input key of (1) in the ten keys 16 is operated to display the character of (a) on the display 11. After that, the multidirectional key 15 is operated in the direction of (e) (steps 207 and 208). In this case, the character “koe” can be displayed on the display 11 by a total of four operations.

Briefly describing this, the (ka) + multidirectional key 15 is operated in the direction of (o) → (ko) (a) + the multidirectional key 15 is operated in the direction of (e) → (e) Becomes

Also, the key return key 12 and the multi-directional key 1
By using in combination with 5, the input characters can be easily changed.

That is, for example, when the character of (K) is displayed in order to input the character of (K) and then the return key 12 of the kana is operated once, as described above, the character of (K) becomes ( Is converted to this character.

In this case, the character "(") can be input by operating the key return key 12 three times in succession from "("). 1
When 5 is operated in the direction of (i), the character of (
Can be converted to characters.

When characters on the same line are continuously input, the multidirectional key 15 is operated twice to automatically determine the character, and the next character can be input only by operating the multidirectional key 15. You can also

That is, for example, when inputting the character (sushi) in the row of (sa), first, the input key of (3) in the ten keys 16 is operated to display the character of (s) on the display 11. Let it. Next, by operating the multi-directional key 15 twice in the direction of (U), the character of (SU) is automatically determined, and by operating the multi-directional key 15 once in the direction of (U). , (Sa) are converted to (shi), and (sushi) can be input by a total of four input operations.

Briefly describing this, the (sa) + multidirectional key 15 is operated in the direction of (u) + the multidirectional key 15 is operated in the direction of (u) + the multidirectional key 15 is operated in the direction of (i) Operation → (Sushi).

By the way, conventionally, (sa) + (sa → shi)
+ (Sa → s) + (moving right) + (sa) + (sa → s) →
A total of six input operations such as (sushi) are required.

Next, for example, (parentheses) (ki) (kyu)
When a character including a repetitive sound or a prompting sound such as (ky), (sh), (sha) or (sha) is input, it can be easily performed by using the simple conversion key 14.

That is, for example, when inputting (parentheses), first, the input key of (2) in the numeric keypad 16 is operated to display the character of (?) On the display 11 (steps 209 and 210). Next, the simple conversion key 1
By operating the number 4 once, the character () is converted to the character () (step 211).

In addition, when inputting (ki), the multi-directional key 15 is operated once in the direction of (i) to convert the character of (ka) to the character of (ki) as described above. Thereafter, when the simple conversion key 14 is operated once, the character of (ki) is converted to the character of (ki). Similarly, after the character of (K) is converted into the character of (K) by the multidirectional key 15, if the simple conversion key 14 is operated twice, the character of (K) is converted to the character of (K). Similarly, after the character of (K) is converted to the character of (K) by the multidirectional key 15, if the simple conversion key 14 is operated three times, the character of (K) is converted to the character of (K). .

Briefly describing this, (ka) + simple conversion key 14 is operated once → (parentheses) (ki) + simple conversion key 14 is operated once → (ki) (ki) + simple conversion keys 14 Twice → (Kyu) (ki) + simple conversion key 14 three times → (Kyu)

Similarly, if the conversion to (sh) (sha) (sha) is simply described, (shi) + simple conversion key 14 is operated once → (shi) (shi) + simple conversion key 14 is operated twice → (sha) (shi) + simple conversion key 14 is operated three times → (sha).

Also, for example, a muddy sound such as (）) or (B), a muddy sound such as (ぢ ゃ) or (B) or a sound including a prompting sound, or a half sound such as (ぱ) or (ぴ) When a voiced sound, a semi-voiced sound such as (拗) or (ぱ) or a semi-voiced sound including a prompting sound is input, using the voiced sound key 13 can be easily performed.

That is, for example, when a voice sound is input to a character including a murmur of (ぢ ゃ), first, the input key of (4) in the ten keys 16 is operated to display the character of (ta) on the display 11. (Step 212). next,
By operating the input key (4) in the ten keys 16 again, the character (C) is displayed on the display 11. Next, operate the simple conversion key twice and change the character of (chi) to (cha).
When the voiced sound key 13 is operated once, the character of (Cha) is converted to (ぢ ゃ) (step 213).
214).

For example, when a semi-voiced sound is input to a character including a prompting sound of (ぱ), first, the input key of (6) in the ten keys 16 is operated to display the character of () on the display 11. Let it. Next, the simple conversion key is operated once to convert the character of (ha) to (ha), and then the voice sound key 13 is operated once, the character of (ha) becomes the character of (wa). The character is converted, and when the voiced sound key 13 is operated again, the character of (B) is converted to the character of (P).

FIGS. 3 and 4 show conversion tables of characters that can be input by the above operations.

FIG. 3 shows rows (a) to (ya). FIG. 4 shows a row (ra) to a row (wa), a row (ga), a row (za), a row (da), a row (ba), a row (ぱ), and the like. .

In FIGS. 3 and 4, the normal input is the operation of the input keys up to (0-9) of the numeric keypad 16, the operation of the input keys up to (0-9) of the numeric keypad 16, and the return key 12 of the kana. One of the operation, the operation of the input keys of the numeric keys 16 (0 to 9) + the operation of the multidirectional key 15 is shown.

In FIGS. 3 and 4, simple conversion 1, simple conversion 2, and simple conversion 3 indicate the number of times the simple conversion key 14 is operated after the normal input. In FIGS. 3 and 4, * indicates a normal conversion + a simple conversion key 14.
The case where the type of the sound is changed by operating the multidirectional key 15 after the character including the sound is input is shown.

In the row of (waon), a long sound (-),
A period (.) And a reading (,) are included.

Here, according to the conversion tables of FIGS. 3 and 4, for example, the case of inputting (catcher) will be briefly described as follows: (K) + (K →) + simple conversion key 14
(Ki) + Simple conversion key 14 (Ki) + Simple conversion key 1
4 (key) + (ta) + (ta → chi) + simple conversion key 14
(Chip) + Simple conversion key 14 (Cha) + (Wa) + Return key 12 + Return key 12 → (Catcher)
In this case, the input is performed by 12 operations. Here, when converting (kyatcha) to kana, it is possible to use a kana conversion function (not shown), a kanji dictionary, or the like. Here, (+) + (+/-) + simple conversion key 14 (+)
+ Return key 12 (key) + (ta) + (ta → chi) + Simple conversion key 14 (chi) + Simple conversion key 14 (cha) +
(W) + Return key 12 + Return key 12 → (Catcher)

Incidentally, conventionally (when there is no lowercase input key), (ka) + (ka → ki) + (ya) + (ya → yu) +
(Ya → yo) + (Ya → cho) + (Ta) + (Ta → chi) + (Ta →
One) + (ta → t) + (ta → t) + (ta → t) + (move right) + (ta) + (ta → chi) + (ya) + (ya → yu) + (ya → yo) ) + (Y → ゃ) + (W) + (W →) + (W → n)
A total of 23 input operations of + (Wa →) are required.

Conventionally (when there is a lowercase input key), (ka) + (ka → ki) + (ya) + (lowercase) +
(Ta) + (ta → chi) + (ta → tsu) + (lowercase) + (move right) + (ta) + (ta → chi) + (ya) + (lowercase) +
(Wa) + (Wa →) + (Wa → n) + (Wa →) Total 17
Input operation is required twice.

As described above, in the present embodiment, one of the characters up to (a-wa) assigned to the numeric keypad 16 is input with one hand, and the input is made (a-wa). Is converted to characters (A) to (D) by one-handed input operation of the key return key 12, or 5 (A) to (O) by the multidirectional key 15. One-handed operation in the direction to convert to (A)-(B) characters, or one-handed operation of the simple conversion key 14 to convert the input characters or converted characters to characters containing a murmur or a prompt. The input character or the converted character is converted into a voiced sound or a semi-voiced sound by one-handed operation of the voiced sound key 13, so that Japanese with a small input key can be easily input with one hand. be able to.

In the present embodiment, the case where the present invention is applied to the mobile phone 10 has been described. However, the present invention is not limited to this example, and a small keyboard of a portable communication terminal, a keyboard of a personal computer, and the like, Controller,
Small keyboards for information devices such as electronic notebooks and electronic dictionaries,
Video, CD player, car navigation, radio,
Applied to remote control of AV equipment such as MD player, AV equipment such as WebTV equipped with communication function (Internet), operation part of communication terminal such as fixed telephone, facsimile, business phone, home telephone, operation panel of automatic machine tool, etc. can do. Other than these, any small-sized character input device similar to that described above can be applied.

Further, in the present embodiment, the case has been described in which the voiced sound key 13 is used to input a voiced sound such as (Z) or (B) or a semi-voiced sound such as (ぱ) or (ぴ). The present invention is not limited to this example.
Can be converted to (squeezed) by the sound key 13.

Further, by applying the method of performing Japanese input with one hand according to the present embodiment to, for example, the above-described remote controller or the like, even a person unfamiliar with keyboard input operation can easily input characters. Further, since it is easy, it is also possible to promote the use of the Internet using, for example, a mobile phone or a television.

FIG. 2 shows an example of the flowchart in the present embodiment.
The present invention is not limited to the flowchart of FIG. 2 and can be changed as appropriate. In this embodiment, an example of the conversion table is shown in FIGS. 3 and 4.
It is not limited to the conversion tables of FIGS. 3 and 4, and can be changed as appropriate.

In the present embodiment, in FIG.
Use the keypad return key 12 and the simple conversion key 14
However, the present invention is not limited to this example, and the key return key 12 and the simple conversion key 14 may be provided below the numeric keypad 16. You may. In addition, the mobile phone 10
May be installed on the side surface or the back surface of the main body. Further, regarding the return key 12, (0) to (9) of the numeric keypad 16,
It is also possible to install one by one next to the (*) and (♯) keys. Further, in the present embodiment, the case where the multidirectional key 15 is a pentagon in FIG. 1 has been described.
The present invention is not limited to this example. For example, a star shape as shown in FIG. 5 (a) may be used. Also, as shown in FIGS. 5 (b) and 5 (c), individual vowels (a to May be arranged. Further, as shown in FIGS. 5B and 5C,
6. Combination of vowels (A-O) with muddy, special characters, kanji conversion, and other commonly conceivable keys
Key shapes such as directions and seven directions may be used. Moreover,
The multi-directional key 15 may include the return key 12 and the simple conversion key 14 described above.

In this embodiment, in FIG.
Although the case where the multidirectional key 15 is a pentagon has been described, the present invention is not limited to this example, and may be, for example, a circular or joystick type.

In this embodiment, in FIG.
Although the case where the multi-directional key 15 is a pentagon has been described, the present invention is not limited to this example, and the multi-directional key 15 may be, for example, one of (A to O) in four directions excluding (A). Can also.

[0069]

As described above, according to the method, the recording medium, and the information input device for performing Japanese input with one hand according to the present invention, the (A-W)
Enter one of the characters up to one hand, and
One of the characters up to (W) is converted to (A) to (D) by one-hand input operation of the kana return key,
The multi-directional keys are used to operate in one of two directions (A) to (O) with one hand to convert the characters to (A) to (O), The converted character is converted to a character containing a murmur or a prompting sound, or the input character or converted character is converted to a voiced sound or semi-voiced sound by one hand operation of a voiced sound key, so that a small You can easily enter Japanese with one hand using the input keys.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a mobile phone according to an embodiment of a method for performing Japanese input with one hand according to the present invention.

FIG. 2 is a flowchart illustrating a method of performing Japanese input with one hand in the mobile phone of FIG. 1;

3 is a diagram showing a conversion table for explaining a method of performing Japanese input with one hand in the mobile phone of FIG. 1;

4 is a diagram showing a conversion table for explaining a method of performing Japanese input with one hand in the mobile phone of FIG. 1;

FIG. 5 is a diagram showing another example of the multidirectional key of FIG. 1;

[Explanation of symbols]

 Reference Signs List 10 mobile phone 11 display 12 kana return key 13 voice sound key 14 simple conversion key 15 multi-directional key 16 numeric keypad

Continuation of the front page (72) Inventor Yoichi Ishiguro 4-14-7 Namamugi, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture No. 608 Nishi-Urban Spirits Namamugi F term (reference) 5B020 AA04 BB02 FF14 FF22

Claims (15)

[Claims] A first step of inputting, with one hand, any of the characters up to (a-wa) of (a) assigned to the numeric keypad; Kana characters can be input by one-handed operation of the kana return key.
And a second step of converting into Japanese characters. 2. In the first and second steps, any one of the characters up to the input (A-A) is moved in one direction by a multi-directional key in the multi-directions (A)-(O). 2. The method of performing Japanese input with one hand according to claim 1, further comprising a third step of converting the characters into the characters of (Adan) to (Odan) by operating with. 3. The method according to claim 1, wherein the third step includes the steps of:
3. The one-hand Japanese input according to claim 2, further comprising a fourth step of successively inputting characters on the same line by double-clicking any one of the multiple directions of (o) with one hand. How to do. 4. The first to fourth steps include a fifth step of converting an input character or a converted character into a character including a tongue or a prompt by one-handed operation of a simple conversion key. The method for performing Japanese input with one hand according to any one of claims 1 to 3, characterized in that: 5. The method according to claim 1, wherein the first to fifth steps include a sixth step of converting an input character or a converted character into a dull or semi-dull sound by one-handed operation of a dull key. The method for performing Japanese input with one hand according to any one of claims 1 to 4. 6. The method according to claim 1, wherein the first to fifth steps include a seventh step of inputting a voiced sound into a character including a converted sound or a prompt by one-handed operation of a voiced sound key. Item 5. A method of performing Japanese input with one hand according to any one of Items 1 to 4. 7. The method according to claim 7, wherein the second, third, and fourth steps include an eighth step of changing input characters by using the kana return key and the multidirectional key in combination. The method for performing Japanese input with one hand according to any one of claims 1 to 3. 8. A recording medium on which a program indicating the second to eighth steps is recorded. 9. A numeric keypad for inputting one of the characters up to (a-wa) in (a) with one hand, and inputting any of the characters up to (a-wa) into (a) An information input device, comprising: a kana return key for converting characters into characters (stage) to (stage). 10. One of the input characters (A to W) is operated with one hand in one of two directions (A) to (O) using a multidirectional key, and the characters (A) to (A) are displayed. The information input device according to claim 9, wherein the information is converted into a character of (d). 11. The multi-directional key according to claim 1, wherein:
11. The information input device according to claim 10, wherein a character on the same line can be continuously input by double-clicking one of the multi-directions with one hand. 12. The information input device according to claim 9, wherein the input character is converted into a character including a murmur or a prompt by one-handed operation of a simple conversion key. 13. The information input device according to claim 9, wherein the input character is changed by using both the kana return key and the multidirectional key. 14. The information input device according to claim 9, wherein the input character is converted into a voiced sound or a semi-voiced sound by one hand operation of a voiced sound key. 15. The information input device according to claim 9, wherein a dakuon is input to the converted character including the dangling sound or the prompting sound by one-handed operation of a dakuon key.