JP2003122746A - Mobile phone and its character input method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] [MEANS FOR SOLVING PROBLEMS] When an input operation of a character "no" is performed in an input section,
As shown in FIG. 4 (a), following the sentence already input on the screen, the input character "no" is indicated by the cursor 23 and displayed. If registered in the department, an icon 24 indicating that
Is displayed. When a designation operation of the term selection mode is performed in this state, such a word is read from the term storage unit as a selection candidate and displayed in the candidate area 25 or 26 as shown in FIG. 4B or 4C. When a predetermined one is searched for from the selection candidates displayed on this and the determination operation is performed, the selection candidate is determined as an input term, and FIG.
Is displayed in place of the input character "".

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone, and in particular, stores a term desired by a user separately,
The present invention relates to a mobile phone capable of using this separately stored term when converting an input character into a term, and a character input method thereof.

[0002]

2. Description of the Related Art A mobile phone is capable of not only making a call but also inputting characters and symbols (hereinafter referred to as character input) to enable mailing. In this case, the dial key for entering the telephone number is also used for character input,
Moreover, for example, 1 for each character on the same line, such as the "A" line.
One dial key is assigned. Therefore, in order to input a desired character, it is necessary to repeatedly operate the same dial key 1 to 5 times.

In this way, when the dial keys are operated to input characters and one or more of the input characters is read (in the case of kanji, it is converted into kana), it is converted into a term such as kanji. By operating the keys, the dictionary data pre-established for terms that read one or more specified characters is searched, the corresponding terms are displayed in a list, and one of them is selected to enter the input character. It is possible to confirm.

By the way, the other party of the mail is a fixed person, and there are relatively many words that are frequently used such as the name of the other party. As described above, since the mobile phone requires a relatively long time for the operation of inputting characters, even if only such a word can be easily found, it becomes very convenient.

As a means for saving the trouble of such character retrieval, it relates to a word processor or a computer terminal, and an example thereof is disclosed in Japanese Patent Laid-Open No. 7-219943. This is to store, for each kanji used during the document creation process, the kanji and the reading (phonetic alphabet) in the history file together with the use number indicating the order of use of each kanji. When one character is entered, the Kanji that starts reading with this character is searched for in this history file, and the Kanji with the largest usage number and the largest usage number is retrieved from this history file and displayed. Even one input character can be converted into Kanji. If the displayed Kanji is not applicable, input more characters.

[0006]

In the above-mentioned prior art, when one character is input, the kanji that starts reading with this character is automatically displayed. Therefore, the display screen is large like a word processor or a computer terminal. In the case of a terminal, since a large and easy-to-read character display is made, there is no particular problem even if the converted Chinese character is displayed together with the character input. However, when you enter a character, a Kanji with a different shape and number is automatically displayed, so the display screen is small and the character size is smaller than that of a word processor or computer terminal and can be displayed. In the case of a mobile phone with a small number of characters, when one character is entered and a Kanji with a different shape and number of characters is displayed immediately, it feels strange and it is difficult to check this Kanji. It becomes difficult to handle.

Further, in the above-mentioned prior art, since the Kanji used during the ongoing document creation process is stored in the above history file, this history file is stored in the history file at the initial stage of the document creation process. You can't use the history file because there are no kanji registered.
It is necessary to register the kanji in the history file each time the document is created. Of course, the kanji registered in the history file are
It may be possible to keep it as it is even after the document creation process is completed, but since the kanji converted using the dictionary are automatically registered in the history file,
A huge amount of kanji, including unnecessary ones, will be registered, and the content will be no different from a dictionary.

An object of the present invention is to solve the above problem and to provide a mobile phone and a character input method thereof which can surely convert a character input into a word when the character is input. To provide.

[0009]

In order to achieve the above object, the present invention provides an input unit for inputting information by key input and a character information input by key input of the input unit for converting it into a word. A storage unit including a term storage unit that stores, as past input words, dictionary data or a term selected from the dictionary data by the user, an output unit including a monitor for displaying images and sentences, an LED, a speaker, and a vibrator,
A mobile phone having an input processing unit for controlling a storage unit and an output unit according to information accompanying a key input from the input unit,
Every time a character is input by the key input of the input unit, the input processing unit determines whether or not the past input term in the word storage unit in which reading is started with one or more input characters is present in the word storage unit. When there is a storage unit, the output unit outputs the determination information indicating that fact.

Further, according to the present invention, the determination information is displayed on a monitor, and the monitor displays a first display area for displaying a character input by a key input of the input section and a second display area for displaying various icons. And a display area for displaying the determination information as a specific icon in the second display area.

Alternatively, when there is a key input by a directional key in the input section between the input of a character by the key input in the input section and the key input for the next character input, the input processing section causes the output section to operate. The determination information is output from the.

According to the present invention, the input processing unit causes the output unit to output the judgment information when there is no next key input even if a predetermined time has elapsed since the character input by the key input was made at the input unit. Is.

In order to achieve the above object, the present invention makes it possible to display a character input by a key input on the input unit on a monitor and convert the character displayed on the monitor by a key input on the input unit into a word. A character input method for a mobile phone having a term storage unit that stores a term selected by a user as a past input term, wherein one or more characters are input each time a character is input by key input in the input unit. When there is a past input word corresponding to a word that begins to be read in characters in the term storage section, the judgment information indicating that fact is displayed, and when the judgment information is displayed, the past from the term storage section is displayed in the input section. By a key input for reading an input word, a past input word corresponding to a word whose reading starts with one or more input characters is displayed as a selection candidate from the term storage unit.

Further, according to the present invention, the selection information is displayed in a selectable manner in a list, and a predetermined mark is added to the latest selection information.

Further, the present invention is such that one of the selection information is displayed following a sentence in which the input has already been confirmed and displayed, and the displayed selection information can be updated.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a main part of an embodiment of a mobile phone according to the present invention. 1 is an input unit, 2 is an input processing unit, 3 is a storage unit, 3a is a character table, 3b is a word storage unit, 3c. Is dictionary data, 4 is output section, 4a is monitor (liquid crystal display), 4b is LED (light emitting element), 4c
Is a speaker and 4d is a vibrator.

In FIG. 1, the input unit 1 is for performing various operations such as character input operation by mail and telephone operation (hereinafter, such operation at the input unit 1 is referred to as key input). Information input from the input unit 1 by such key input is supplied to the input processing unit 2 and processed. When a key input for character input is made at the input unit 1, the input processing unit 2 controls the storage unit 3 and the output unit 4 to operate according to the input information.

The storage unit 3 is used for inputting characters, and includes a character table 3a for converting input characters into corresponding font data and words required by the user (not necessarily kanji). ) Is stored, and dictionary data 3c in which words are stored are provided.

Further, the output unit 4 is a monitor 4 for displaying a menu screen, texts, images, etc. in a call, mail, etc.
a, an LED 4b that blinks when a telephone call arrives, a speaker 4c that outputs a voice during a telephone call, a vibrator 4d that causes vibration when a telephone call arrives, and the like.

FIG. 2 is a diagram showing a specific example of the input unit 1 in FIG. 1, in which 10 is a dial key and 11a to 11d.
Is a direction key, 12 is a decision key, 13 is a function key, and 14 is a delete key.

In the figure, the dial key 10 is composed of a numeric key and a symbol key, and is used for inputting a telephone number in the case of a telephone call and characters, numbers, and symbols in the case of a mail. The direction key 11 is used to move the cursor displayed on the monitor 4a (FIG. 1) in the up, down, left, and right directions.
For example, the word storage unit 3 when the direction key 11a is inputting characters
It has a function of a read key of the corresponding word from b (FIG. 1). However, as will be described later, the function of the read key may be provided to a key other than the direction key 11a. The enter key 12 has a function of determining an item selected by the cursor on the monitor 4a, an input character at the time of character input, and the like. Function key 13
, It is assumed that the function keys have different functions in each situation of the character input process, and here, the function keys are provided with three function keys, but the number is limited to three. Not a thing. The delete key 14 is used to delete the input character when inputting the character.

FIG. 3 is a flowchart showing an embodiment of the character input method according to the present invention, and the character input processing in the mobile phone shown in FIGS. 1 and 2 will be described below with reference to this flowchart.

For example, when there is a key input for an electronic mail mode instruction in the input section 1 and the character input mode is entered, first, initialization is performed and a screen of the character input mode is displayed on the monitor 4a (step 101). ), A state of waiting for a key input on the input unit 1 is entered. When there is a key input in the standby state (step 102), it is determined whether the input information by the key input is a character (step 10).
3).

When this key input is an operation of the dial key 10 and one character is input, the font data corresponding to this character is retrieved from the character table 3a of the storage unit 3 (step 104), and this is monitored. It is supplied to 4a and displayed as an input character (step 105). Along with this, a word (hereinafter referred to as a furigana in Kanji) from which the reading (corresponding to a furigana in Kanji) is registered in the word storage unit 3b (hereinafter referred to as a corresponding registered word) (Step 10
6). Then, the presence or absence of the corresponding registered word is determined from the search result (step 107). If there is no corresponding registered word, the process proceeds to step 109 to wait for the next key input. The output unit 4 is controlled to notify the user of the fact (step 108), and step 109
Proceed to and wait for the next key input.

FIG. 4 (a) shows an example of the display screen on the monitor 4a in such a state. Here, the sentence "Tomorrow Norio. Surely" has already been entered in the input character display area 21. This indicates that the character “NO” has been input following this, and when this input character “NO” has not been confirmed by the operation described later, for example, an underlined cursor 23 is displayed. In addition, when at least one corresponding registered word whose reading starts with the input character "NO" before confirmation is registered in the word storage unit 3b, the icon area 20 set in the upper part of the input character display area 21 The star-shaped (but not limited to this shape) icon 24 indicating that the information is registered is displayed, for example, in a blinking manner. In the function key display area 22, the three function keys 1
The functions assigned to each of the three are displayed.

Here, the information in which the corresponding registered word whose reading starts with the input character is registered in the word storage section 3b is displayed on the monitor 4a, but not limited to this, the LED 4b is turned on. You can let me do it,
Sound may be output from the speaker 4c,
The vibrator 4d may be operated. However, in the following, it is assumed that such information is displayed as shown in FIG.

In FIG. 3, the next key input in step 109 is waited for. The key input includes the operation of the enter key 12 and the operation of other keys. When the enter key 12 is operated, the input character is confirmed. When the dial key 10 is operated, it means that the next character has been input, and step 1
09 to steps 102 and 103, and step 10
The above operations from 4 are performed. However, in this case, the number of undetermined input characters becomes two (for example, when the character “ri” is input in the display state shown in FIG. 4A, the input character becomes “nori”), and step 106 Then
The word storage unit 3b searches for the corresponding registered word whose reading starts with these two input characters. in this case,
If the corresponding registered words for these two input characters exist in the word storage unit 3b, the icon 24 is displayed as shown in FIG. 4A (step 108). In this way, it is possible to sequentially input characters one by one without confirming the input characters with the enter key 12.

Therefore, as described above, each time one character is input, if the corresponding registered word is registered in the word storage unit 3b, the icon 24 is displayed as shown in FIG. 4 (a). However, since it is possible to input characters sequentially without confirming (step 108), before inputting one character and inputting the next character, for example, the direction key 11
When a is operated, as shown in FIG.
4 may be displayed (step 10
8) Alternatively, the icon 24 may be displayed after a predetermined time has elapsed after inputting characters (step 108). According to this, as the number of input characters increases, the number of corresponding registered words is limited, and the number decreases, which facilitates the selection operation of the corresponding registered words to be described later.

Now, the word which is read by the user as described above or the character string is read as the word recording section 3b.
If the registration is to be performed in step 109, the enter key 12 is operated in step 109. As a result, the character or character string is confirmed, converted into a word using the dictionary data 3c, and displayed on the monitor 4a (step 110). When there are a plurality of converted words, the arrow keys 11a to 11a.
It can be selected by operating 11d.

When the enter key 12 is operated again while the word on the monitor 4a is displayed, this word is searched in the word storage section 3b (step 111) and it is determined whether or not this word is already registered in the word storage section 3b. It is determined whether or not (step 112). If already registered, the word storage unit 3b
In step 126, the past input words are sorted (arranged) in ascending order of use. In this case, in the word storage unit 3b,
The past input word for the above word determined to be already registered in step 112 is ranked highest. The sorting of the word storage unit 3b will be described later.

As a result of the search in the word storage unit 3b (step 111), if the word is not registered (step 112), the additionally registerable capacity in the word storage unit 3b is checked (step 113), If additional registration is possible (step 114), this word is registered as it is in the word storage unit 3b as a past input word (step 116). If there is no additional registration available capacity (step 114), the rank is set. The past input word is deleted in ascending order (step 115), and this word is registered in the word storage unit 3b as the past input word (step 116). And
In any of these cases, the past input words in the word storage unit 3b are sorted, but the newly registered word is registered as the highest ranked past input word (step 126).

The above is the registration of the words in the word storage unit 3b. Next, the words registered in the word storage unit 3b, that is, the character input performed using the past registered terms will be described. 4 (a) will be described as an example.

When one character "NO" is input by operating the dial key 10 (step 102), the word storage unit for this input character "NO" is executed by the series of operations of steps 103 and 104 to 106 described above. When there is a past input word corresponding to 3b (step 107), the icon 24 is displayed in the icon area 20 of the display screen (step 1).
08).

Therefore, when there is a key input to operate the direction key 11a for instructing the shift to the past input word selection mode using the past input word of the word storage unit 3b (step 10).
2) This key input is not character input (step 1
03), since it is for instructing the transition to the past input word selection mode (step 117), the reading in the word storage unit 3b for this input character "no" starts from this input character "no". Is searched (step 118).
As a result of this search, if there is a corresponding registered word of this input character "NO" (step 119), this input character "NO"
Monitor 4 with all relevant registered words found as selection candidates
It is displayed in a (step 121).

The key input for shifting to the past input word selection mode may be a key other than the direction key 11a as long as it is a key other than the key assigned to the character input or the kanji conversion. For example, a mode transition function may be assigned to one of the function keys 13, and the operation key may be operated to transition to the past input word selection mode.

If there is no corresponding registered word of the input character "NO" (step 119), the past input word selection mode is canceled (step 120), and the state is awaited for the next key input (step 102). This is because there is no corresponding registered term in the word storage unit 3b for the input character "NO" (step 107: in this case, the display screen (FIG. 4).
(A)) icon 24 is not displayed), direction key 1
This is the case where 1 is operated to instruct the shift to the past input word selection mode (steps 102 to 117), and in such a case, naturally, there is no corresponding registered word in the word storage unit 3b (step 119). The past input word selection mode is canceled (step 120).

FIGS. 4 (b) and 4 (c) show specific examples of the display method of the selection candidates (corresponding registration numbers) on the monitor 4a.

In the concrete example shown in FIG. 4B, a candidate area 25 displaying a list showing a plurality of selection candidates is provided in a part of the input character display area 21. When selecting a predetermined selection candidate from these, the direction keys 11a to 11a ...
11d, a cursor (not shown) may be used to indicate a desired selection candidate, and the enter key 12 may be operated. If only a part of the selection candidates can be displayed in this candidate area 25,
The list in the candidate area 25 may be scrolled up and down by a predetermined operation of the input unit 1. By doing so, one selection candidate can be selected from among a plurality of selection candidates at the same time, and selection is easy.

In the concrete example shown in FIG. 4 (c), a candidate area 26 is provided following a character string (sentence) already input in the input character display area 21 of the monitor 4a.
In this candidate area 26, one selection candidate is displayed. By operating the direction keys 11b and 11d on the input unit 1, for example, the selection candidates displayed in the candidate area 26 can be changed. Also, enter key 1
By operating 2, the selection candidate displayed in the candidate area 26 is determined as the word to be used. According to this, the display area of the selection candidates can be narrowed, and the selection candidates can be displayed without disturbing the already-input text.

When key input is performed in such a display state of selection candidates (step 122), when this key input is operation of the direction keys 11b and 11d (step 123), in the case of FIG. 4 (b). In the candidate area 25, an operation for selecting a selection candidate is performed with a cursor. In the case of FIG. 4C, the selection candidate is sequentially updated in the candidate area 26, and the selection candidate is determined and the enter key 12 is operated (step 124), this selection candidate is confirmed as the input word. Therefore, if the selection candidate “Norio” is selected in FIGS. 4B and 4C, the input character “NO” shown in FIG. 4A becomes “Norio” as shown in FIG. 4D. It will be converted into kanji and displayed.

At the same time, the past input words are sorted in the word storage unit 3b so that the past input words of the selected selection candidate "Norio" have the highest rank (step 126). The character input for the input character “NO” is completed and the next character input is prepared. When the next character is input, the above operation from step 102 is repeated.

Here, as will be described later, in the word storage unit 3b, in step 126, the most recently used past input word is sorted with a higher rank, and the selection candidates are arranged in order of the higher rank. 4 (b) is displayed in the candidate area 25, and in the display shown in FIG. 4 (c), it is displayed in an earlier order. Therefore, in the case of the sentence shown in FIG. 4A, the term "Norio" is used in the already entered sentence, and when this is a word using the term storage unit 3b, it is called "Norio". The word is given the highest rank. For this reason, the character “NO” is then input, and when a selection candidate for the input character “NO” is obtained from the term storage unit 3b as described above, FIG.
As shown in (b) or (c), the past registered term “Norio” is first displayed in the candidate areas 25 and 26 as the first selection candidate. As a result, the trouble of finding a desired one from the displayed selection candidates is greatly reduced.

The key input (step 122) in the display state shown in FIGS. 4B and 4C is made by operating one of the delete key 14 or the function key 13 to which the mode interruption function is assigned at this time. If yes (step 123), the past input word selection mode is canceled (step 120), and a state of waiting for the next key input (step 102) is entered.

If there are many selection candidates for the input character "NO" (step 121) and it is desired to narrow down the number to some extent, as a key input (step 122), the delete key 14 or the function to which the mode interruption function is assigned is used. By operating the key 13, the past input word selection mode is interrupted (steps 123 and 120), and the next character following the input character "no", for example, the character "ri" is input by operating the dial key 10 ( Step 102).
As a result, the operations of the above steps 103 and 104 to 106 are performed for the two input characters "Nori", and if the corresponding registered word for this input character "Nori" exists in the word storage unit 3b, FIG. As shown in FIG. 5, the icon 24 is displayed. When this is seen, the direction key 11a is used for key input (step 102), and the mode is changed to the past input word selection mode (steps 103, 11).
7), the word storage unit 3b is searched for the input character "Nori", and the selection candidates for the input character "Nori" which are narrower in number than the case of the input character "NO" are shown in FIG.
It is displayed as shown in (b) and (c).

In this way, when there are many selection candidates, the number of selection characters is reduced by sequentially increasing the number of input characters, and it becomes easy to select as input words. It will be easier.

It should be noted that past registered terms for input characters are not limited to Kanji, but may be Hiragana or Katakana, or may be a mixture of any two or more of Kanji, Hiragana, and Katakana. .

Further, in the above description, after step 109, by pressing the direction key 11a, the word storage section 3b is pressed.
It is assumed that the selection candidates are displayed as shown in FIG. 5 (step 118) and the selection candidates are displayed as shown in FIG. 5 (step 121). When the key input including the enter key 12 in step 4 is not made, the routine automatically advances to step 117 to shift to the past input word selection mode, and the operation from step 118 is performed and the operation shown in FIGS. The display state of the selection candidates as shown (step 121) may be set. Of course, even in this case, as described above, the direction key 11
You may make it switch to the past input word selection mode also by the key input of a.

Further, in step 126, the words newly registered in the word storage section 3b are also stored (steps 112 to 11).
6), the past registered words that have undergone the processing of steps 111, 112, 126, and the past input words used for the conversion of the input characters (steps 122 to 125) are also stored in the word storage unit 3b as the highest rank. As described above, since the past input words are sorted, as described above, the latest past input words for which the processing is performed later are ranked higher. With such a high rank, when the selection candidates are displayed as shown in FIGS. 4B and 4C, the display order becomes earlier. For this reason,
The past input words that are used more frequently now have a higher rank, and even if they are used more frequently than others,
Recently, the ones that are not used at all have a low rank. Therefore, if the past input word that is often used is displayed as a selection candidate, the display order will be earlier, so
The time required to select it from the selection candidates is shortened.

On the other hand, the sorting in step 126 may be ranked according to the actual frequency of use, and may be performed according to this rank. In this case, the previously used selection candidate is underlined so that it can be easily found when it is used again. This will be described with reference to the screen shown in FIG. 4E. When a selection candidate is displayed for the input character “NO”, an underline 27 is added to the term “Norio” of the selection candidate. There is. This is because the word "Norio" whose reading starts with "no" is used in the already entered sentence, and the rank is the third as a selection candidate,
An underline 27 is added to indicate that the selection candidate has been used most recently. Therefore, when "Norio" is used again in this way, the underline 27 makes it easy to see and can be found immediately. In this way, even if the frequency of use is low at present, if it is frequently used recently, it will be underlined 27 so that it will be easier to find it. Will come up. This also applies to the display method shown in FIG. Although the underline 27 is attached here, other marks may be attached by enclosing it with a frame or adding a double circle.

Further, in this embodiment, as shown in FIG. 4A, when there is a corresponding registered word in the word storage section 3b for the input character, the fact is displayed outside the input character display area 21. Since the icon 24 shown is displayed and the information indicating the fact is displayed by the LED 4b, the speaker 4c, and the vibrator 4d, such a display does not disturb a sentence or an input character already input. ,
Until the user displays the selection candidates, the sentence or the input character can be confirmed.

Further, in FIG. 3, when the delete key 14 is operated in the key input standby state of step 102, although not shown, the characters before confirmation and after confirmation have already been input through the processing of steps 103 and 117. 1 from the back
You can delete characters one by one.

[0052]

As described above, according to the present invention,
Each time a character is input, if the corresponding word that begins to be read from the input character is registered in the word storage unit at the user's request, the judgment information indicating this may disturb the sentence that has already been input. It will be displayed as if it is not displayed, and it is possible to surely know whether or not the word corresponding to the input character is registered, and when necessary, read the word from the word storage unit and surely convert it to this word. Can be done.

Further, since the word desired by the user is registered in the word storage unit as it is even after the document creation work is completed, no unnecessary word is registered and the word storage unit can be effectively used at any time. can do.

Further, the word which starts to be read from the input character is read from the word storage unit and displayed on the monitor. Since the last used word is marked, it is repeatedly used. The effect that the term is easy to find is also obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a mobile phone according to the present invention.

FIG. 2 is a diagram showing a specific example of an input unit in FIG.

FIG. 3 is a flowchart showing an embodiment of a character input method according to the present invention in the mobile phone shown in FIGS. 1 and 2.

4 is a diagram showing a specific example of a display screen on the monitor in FIG. 1 according to the embodiment shown in FIG.

[Explanation of symbols]

1 Input section 2 Input processing unit 3 storage 3a character table 3b word storage 3c dictionary data 4 Output section 4a monitor 4b LED 4c speaker 4d vibrator 10 dial keys 11, 11a-11d Directional keys 12 Enter key 13 Function key 14 Delete key 20 icon area 21 Input character display area 403 Function key display area 25,26 candidate areas 23 cursor 24 icons

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04M 1/247 (72) Inventor Jun Ito 1410 Inada, Hitachinaka City, Ibaraki Stock Company Hitachi, Ltd. Digital Media Products Division ( 72) Inventor Koji Kimura 1410 Inada, Hitachinaka City, Ibaraki F-Term (Reference) 5D0 KA01 ME13 MG01 5B020 AA03 BB10 CC12 DD02 FF51 GG25 5E501 AB03 BA05 CA04 CB02 EA02 FA42 FA13 FA23 FA23 FA23 FA23 FA23 FA23 FA23 FA23 FA23 FA23 FA23 5K027 AA11 BB01 BB02 FF22 MM17 5K067 AA34 BB04 BB21 DD53 HH21 HH23

Claims (7)

[Claims] 1. An input unit for inputting information by key input, dictionary data for converting character information input by key input of the input unit into words, and a term previously input by the user from the dictionary data. A storage unit including a term storage unit stored as words, an output unit including a monitor for displaying images and sentences, LEDs, speakers, and a vibrator, and the storage unit according to the information associated with key input from the input unit. In a mobile phone having an input processing unit that controls the output unit and the output unit, the input processing unit starts reading with one or more input characters each time a character is input by key input of the input unit. A mobile phone characterized in that the presence / absence of a past input term in the word storage unit is determined, and when the word storage unit has the past input storage unit, determination information indicating that is output from the output unit. Story machine. 2. The display according to claim 1, wherein the determination information is displayed on the monitor, the monitor including a first display area for displaying a character input by a key input of the input unit, and various types of display areas. A mobile phone, comprising: a second display area for displaying an icon, wherein the determination information is displayed in the second display area as a specific icon. 3. The key input according to claim 1 or 2, wherein the directional key is input by the input unit between the input of the character by the key input and the key input for the next character input. At one time, the input processing unit causes the output unit to output the determination information. 4. The input processing unit according to claim 1 or 2, wherein when there is no next key input even after a predetermined time has elapsed since a character was input by key input at the input unit, the input processing unit A mobile phone that outputs the determination information from the mobile phone. 5. A character input by a key input in the input unit is displayed on a monitor, and the character displayed on the monitor can be converted into a word by a key input of the input unit, so that a term selected by a user can be pasted. In a mobile phone having a term storage unit stored as an input term, each time a character is input by key input in the input unit,
When there is a past input word corresponding to a word whose reading starts with one or more input characters in the term storage unit, determination information indicating that fact is displayed, and when the determination information is displayed, A past input word corresponding to a word whose reading starts with one or more of the input characters is displayed as a selection candidate from the term storage unit by a key input for reading a past input word from the term storage unit in the input unit. A character input method for a mobile phone, which is characterized by: 6. The character input method for a mobile phone according to claim 5, wherein the selection information is displayed in a list so that the selection information can be selected, and a predetermined mark is added to the latest selection information. . 7. The method according to claim 5, wherein one of the selection information is displayed following a sentence in which an input is already confirmed and displayed, and the displayed selection information can be updated. Mobile phone character input method.