JP2002169645A - Mobile communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to simply perform character input without depending on key operation, thereby improving the operability. SOLUTION: This mobile communication terminal is provided with an acceleration detecting part 5 using an acceleration sensor 51. A move exerted, in the horizontal direction, to the terminal by the user is detected with the acceleration detecting part 5, and, on the basis of the detection output, the movement trajectory of the move is sought and is displayed on a LCD 34. In addition, if the vibration of the terminal in the vertical direction is detected, the movement trajectory is collated with character patterns, and if there is a match, the character code for the matched character pattern is stored. Besides, a horizontal movement or a tilting operation of the terminal by the user is detected with the acceleration detecting part 5, on the basis of the detection output, the movement direction and the displacement of the move are calculated, on the basis of this calculation result, the shift of dividing position in the character string and the shift of selection display position of the conversion candidate are performed, and if the vibration of the terminal in the vertical direction is detected, the dividing position and the conversion candidate are determined and stored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication terminal such as a portable telephone or a personal digital assistant, and more particularly to a mobile communication terminal having a character input function for creating a telephone directory or creating an electronic mail.

[0002]

2. Description of the Related Art Conventionally, in a mobile communication terminal such as a portable telephone, character input for creating a telephone directory, an electronic mail, or the like is generally performed using a function key such as a numeric keypad of a keypad and a multi-function key. That is, first, input a reading kana by a toggle input operation of a numeric keypad, then, display a plurality of conversion candidates corresponding to the input reading kana by operating a multi-function key, and select a desired kanji from the candidates. Then, it is determined by operating a function key. That is, all of the character input relies on key operations.

[0003]

However, in such a conventional terminal, for example, when a user who is handicapped has difficulty in inputting characters, the operation burden is large. In addition, even a healthy person needs a lot of key operations to create a document containing kanji, so that much time and labor are required for inputting.

The present invention has been made in view of the above circumstances, and has as its object the purpose of making it possible to easily perform character input without relying on key operations, thereby improving mobile operability. To provide a terminal.

[0005]

According to a first aspect of the present invention, there is provided a terminal having acceleration detecting means for detecting a physical movement applied to the terminal from the outside, and detecting a detection output of the acceleration detecting means. Originally, the movement trajectory of the above-mentioned movement applied to the terminal is obtained and the movement trajectory is displayed on the display, and the movement for the final operation is added to the terminal while the display trajectory is displayed. Is detected by the acceleration detecting means, the movement trajectory is recognized as an input character.

Therefore, according to the present invention, characters can be input by moving the terminal back and forth and left and right as if the characters were being input by hand. For this reason,
Even a user who is handicapped can perform character input without relying on key operations.

On the other hand, a second invention is an acceleration detecting means for detecting a physical movement applied to the terminal from the outside, and a direction of the movement applied to the terminal based on a detection output of the acceleration detecting means. It has a calculating means for obtaining the movement amount, a selecting and displaying means, and an input confirming means.

[0008] Then, when one character in the Japanese syllabary table or the alphabet table is selected and designated, and the terminal is tilted or moved horizontally to move the display surface, the selection display means displays Characters belonging to the same row or column as the specified character in the Japanese syllabary table or alphabet table are sequentially selected and displayed according to the direction of the movement and the movement amount obtained by the calculation means. When the acceleration detecting means detects that a motion for the finalizing operation has been applied to the terminal in a state where the character is being selectively displayed, the character being selected and displayed by the input determining means is input to the input character. It is made to take in as.

Therefore, according to the present invention, for example, the user selects a character to be input from the Japanese syllabary table by tilting or moving the terminal back and forth and left and right, and further shakes the terminal in this state, for example, to input a character. Can be determined. For this reason, it becomes possible for a user who has difficulty in fingering to perform character input without relying on key operations, and since the number of key operations is significantly reduced, operability can be improved even for a healthy person. .

[0010] Further, a kanji conversion means is further provided, and when a character or a character string fetched by the input determination means is displayed, an acceleration corresponding to a kanji conversion instruction operation is applied to the terminal. It is also characterized in that the character or character string being displayed is converted into kanji when the detecting means detects it.

Specifically, when the terminal is tilted or horizontally moved while the character or character string fetched by the input determination means is displayed, the calculation is performed by the calculation means. The break position of the character or the character string is changed according to the direction of the movement and the movement amount of the movement, and it is determined that the movement for the determination operation is added to the terminal while the break position is displayed. When the acceleration detecting means detects the position, the break position is determined. Then, when a motion of tilting or horizontally moving the display surface is applied to the terminal after the determination of the break position, the terminal moves at the break position in accordance with the direction of the movement and the amount of movement obtained by the calculating means. One of a plurality of conversion candidates corresponding to the delimited character or character string is selectively displayed, and a motion for a confirmation operation is added to the terminal in a state where one of the conversion candidates is selectively displayed. When the acceleration detecting means detects that, the conversion candidate being selected and displayed is determined as an input kanji.

[0012] In this case, the operation of converting the kana to the kanji can be performed by tilting or moving the terminal in the left, right, front and rear directions. That is, all of the series of operations from input of the reading kana to conversion to kanji can be performed by horizontally moving, tilting, and shaking the terminal. Therefore, kanji input can be performed without resorting to pressing the numeric keypad or operating the multi-function key. As a result, operability is improved not only for those who have difficulty in fingering but also those who are not accustomed to kanji conversion input by key operation. be able to.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a block diagram showing a circuit configuration of a portable telephone terminal according to a first embodiment of the present invention. This mobile phone terminal includes a radio unit 1, a baseband unit 2, an input / output unit 3, a power supply unit 4, and an acceleration detection unit 5.

In FIG. 1, a radio frequency signal arriving from a base station (not shown) via a radio channel is transmitted through an antenna 1.
After being received at 1, the signal is input to a receiving circuit (RX) 13 via an antenna duplexer (DUP) 12. Receiving circuit 13
Comprises a high-frequency amplifier, a frequency converter and a demodulator.
Then, after the radio signal is low-noise amplified by a low-noise amplifier, a frequency synthesizer (SY
N) The signal is mixed with the reception local oscillation signal generated from 14 and frequency-converted to a reception intermediate frequency signal or reception baseband signal, and the output signal is digitally demodulated by a demodulator. As the demodulation method, for example, an orthogonal demodulation method corresponding to the QPSK method and a spectrum despreading method using a spreading code are used. Note that the frequency synthesizer 1
4 is instructed by the main controller 21 provided in the baseband unit 2.

The demodulated signal output from the demodulator is input to the baseband unit 2. The baseband unit 2 includes a main control unit 21, a demultiplexing unit 22, an audio codec (hereinafter referred to as an audio codec) 23, a multimedia processing unit 24, an LCD control unit 25, a memory unit 26, It has.

The demodulated signal is identified by the main control section 21 as control information or multimedia information. If the demodulated signal is multimedia information, the demodulated signal is supplied to a demultiplexing section 22, where audio data and image data are separated. Is separated into
Then, the audio data is supplied to the audio codec 23, where the audio is decoded, and the audio signal reproduced thereby is output from the speaker 32 of the input / output unit 3 as a loudspeaker. On the other hand, the image data is supplied to the multimedia processing unit 24, where the image data is subjected to the image decoding process, and the reproduced image signal is transmitted through the LCD control unit 25 to the LCD of the input / output unit 3.
It is supplied to 34 and displayed.

Also, when reproducing and displaying the audio data and the image data stored in the memory unit 26, these data are input to the audio codec 23 and the multimedia processing unit 24, respectively. After the audio data is decoded by the audio codec 23,
From the speaker. After the image data is decoded by the multimedia processing unit 24, it is supplied to the LCD 34 via the LCD control unit 25 and displayed.

The LCD 34 also displays various information output from the main control unit 21 indicating the operation state of the apparatus, such as a telephone directory, a received electric field strength detection value, and a remaining battery level.

On the other hand, the transmission voice signal of the user output from the microphone 31 of the input / output unit 3 is transmitted to the baseband unit 2.
Is input to the demultiplexer 22 after being subjected to voice coding. In addition, camera (C
The image signal output from the AM 33 is input to the multimedia processing unit 24 of the baseband unit 2, where the image signal is subjected to image coding processing, and then input to the demultiplexing unit 22. The demultiplexing unit 22 multiplexes the encoded audio data and image data in a predetermined format,
The multiplexed transmission data is input from the main control unit 21 to the transmission circuit (TX) 15 of the wireless unit 1.

The transmission circuit 15 includes a modulator, a frequency converter, and a transmission power amplifier. The transmission data is digitally modulated by a modulator, and then mixed with a transmission local oscillation signal generated by a frequency synthesizer 14 by a frequency converter and frequency-converted into a radio frequency signal. As a modulation method, a QPSK method and a spread spectrum method using a spreading code are used. Then, the generated transmission radio frequency signal is amplified to a predetermined transmission level by a transmission power amplifier, and then supplied to an antenna 11 via an antenna duplexer 12, and transmitted from the antenna 11 to a base station (not shown). Is done.

The power supply unit 4 includes a battery 41 such as a lithium ion battery and a charging circuit 42 for charging the battery 41 based on a commercial power supply output (AC 100 V).
And a voltage generation circuit (PS) 43. The voltage generation circuit 43 includes, for example, a DC / DC converter, and has a predetermined power supply voltage V based on the output voltage of the battery 41.
Generate cc.

The input / output unit 3 is provided with an illuminator 36 for illuminating the LCD 34 and the key input unit 35 during operation and communication. This illuminator 36 is called, for example, a backlight or an illumination. The vibrator 6 is used as one of the incoming call notification means, and generates vibration according to a drive control signal from the main control unit 2.

Incidentally, the mobile phone terminal of the present embodiment is provided with an acceleration detecting section 5. The acceleration detector 5 includes an acceleration sensor 51 and an A / D converter 52. Then, the three-dimensional detection signal output from the acceleration sensor is represented by A
The signal is converted into a digital signal by the / D converter 52 and the main control unit 2
Enter 1

The main control unit 21 includes a microprocessor, R
An internal memory including an OM and a RAM is provided. As a control function related to the present invention, a motion pattern analysis function 21 as a control function according to the present invention, in addition to the usual various control functions for executing wireless channel connection control, information communication control, and the like.
a, a movement trajectory display control function 21b, and a character input control function 21c.

The motion pattern analysis function 21a calculates the moving direction and the moving distance (movement amount) by integrating the three-dimensional direction acceleration value fetched from the acceleration detecting section 5 twice with respect to time. A pattern of a physical operation (movement) applied to the terminal based on the moving direction and the moving amount is analyzed. Movement patterns to be analyzed include:
For example, there are a movement for moving the terminal in the horizontal direction with respect to the LCD display surface, a movement for tilting the LCD display surface of the terminal in front, rear, left and right, and a movement for swinging the terminal housing in the vertical direction with respect to the LCD display surface.

The movement trajectory display control function 21b obtains the movement trajectory of the terminal movement based on the movement direction and the movement amount calculated by the movement pattern analysis function, and causes the LCD 34 to display the movement trajectory.

The character input control function 21c performs different input control when inputting a kana character and when converting the input kana character into a kanji. That is, when inputting a kana character, a process for recognizing the movement locus of the movement by collating it with a previously stored character pattern is performed in accordance with the vertical vibration of the terminal analyzed by the movement pattern analysis function 21a. Do. On the other hand, when performing the kanji conversion, in accordance with the horizontal movement or tilt operation of the terminal obtained by the movement pattern analysis function 21a, and further the vertical vibration operation, the kana character string separation position movement processing, A process of selecting and displaying a plurality of conversion candidates corresponding to the separated kana character strings and a process of deciding the selected and displayed conversion candidates are performed.

Next, a description will be given of a character input control operation in the portable telephone terminal configured as described above. FIG. 2 is a diagram showing physical movements applied to the terminal, and FIGS. 3 and 4 are flowcharts showing control procedures and control contents.

In the present embodiment, an example will be described in which a sentence of an electronic mail is created. In this case, the user
Character input button B provided on the side of the housing of the mobile phone terminal
Press T. When this operation is detected in step 3a as shown in FIG. 3, the main control unit 21 enters the character input reception mode.

The user then proceeds to the character input button BT
While pressing, move the terminal horizontally to write in the air. The main controller 21 takes in the detection output of the acceleration detector 5 in step 3b. Then, in step 3c, a movement amount is calculated by integrating the detection output twice with time, a movement trajectory of the terminal movement is obtained from the movement amount and the movement direction, and the movement trajectory is stored in the internal memory. Is displayed on the LCD 34 in step 3d. For example, when the user moves the terminal in the horizontal direction in order to input “A”, the movement locus of the movement is displayed as shown in FIG.

After inputting one character, the user releases the character input button BT and shakes the terminal once in the vertical direction. The main control unit 21 detects these operations in steps 3e and 3f. The movement of the terminal is performed by calculating the direction and amount of the movement from the detection output of the acceleration detection unit 5 and comparing these with a movement pattern registered in advance for a determination operation.

When the input of one character is determined, the main control unit 21 proceeds to step 3g, and checks the movement trajectory input here with the character pattern stored in the internal memory in advance. If the movement locus matches the character pattern, the character code corresponding to this character pattern is stored in the internal memory as input character data and displayed on the LCD 34 in step 3h.

When the user presses the character input button BT again to input the next character, the main control section 21 returns from step 3i to step 3b and repeats the character input control. On the other hand, if the result of the comparison between the movement trajectory and the character pattern does not match, the process proceeds to step 3j, where a message prompting re-input is sent to the LC
D3 is displayed, and the process returns to step 3a to repeat the character input operation.

When the user finishes inputting a desired character string and shakes the terminal once in the vertical direction, the main control unit 2
1 shifts to kanji conversion control. FIG. 4 is a flowchart showing the control procedure and contents.

That is, the main control section 21 first sets the LCD 34
A cursor for separation indicating the separation position is displayed on the character string displayed in. In this state, the user sets the terminal to LC
D Horizontally move the display screen horizontally, or
When the LCD display screen is tilted in the left-right direction as shown in (1), the main control unit 21 calculates the direction and amount of the terminal movement based on the detection output of the acceleration detection unit 5 in step 4a. Then, based on the result of the calculation, the cursor for separation which is being displayed is moved to change the character separation position. FIG.
Shows an example of this character segmentation operation, when the terminal is horizontally moved to the right or tilted, the segmentation position moves to the right in the figure, whereas when the terminal is horizontally moved to the left or tilted, The cutting position moves to the left in the figure.

When the user shakes the terminal once in the vertical direction while the cursor is moved to the desired cutting position, the main control unit 21 determines that this operation is an operation for determining the cutting position, and proceeds from step 4b to step 4c. Move to Then, a plurality of conversion candidates of the character string determined by the above-described separation position are read from the dictionary of the internal memory, and these conversion candidates are displayed on the LCD 34. Then, a selection cursor is displayed over one of the conversion candidates.

In this state, the user moves the terminal horizontally in the vertical direction of the LCD display screen, or tilts the LCD display screen back and forth as shown in FIG. Then, the main control unit 21 calculates the direction and amount of the movement of the terminal based on the detection output of the acceleration detection unit 5 in step 4c. And
Based on the calculation result, the selection cursor being displayed is moved to change the selection position for the conversion candidate. FIG. 7 shows an example of the character segmentation operation. When the terminal is horizontally moved upward or tilted backward, the selected position is moved upward in the figure, while the terminal is horizontally moved downward. The selection position moves downward in the figure when the button is moved or tilted forward.

When the user shakes the terminal once in the vertical direction while the cursor is moved to a desired conversion candidate, the main control unit 21 determines that this operation is an operation for deciding the selected position, and steps 4d to 4e. Move to Then, in step 4e, the conversion candidate at the determined selected position is stored as input character data and displayed on the LCD 34.

Thereafter, similarly, when the user moves or tilts the terminal horizontally, the reading kana is input according to the control procedure shown in FIG. 3, and the conversion process to kanji is performed according to the control procedure shown in FIG.

As described above, in the first embodiment, the mobile phone terminal is provided with the acceleration detecting section 5 using the acceleration sensor 51, and the horizontal motion applied to the terminal by the user is detected by the acceleration detecting section 5. Then, based on the detection output, the movement locus of the movement is obtained and displayed on the LCD 34. When a vertical vibration of the terminal is detected, the movement trajectory is collated with a character pattern, and when they match, the character code of the character pattern is stored. Therefore, by moving the terminal back and forth and left and right, it is possible to input characters such as reading kana as if the characters were being input by handwriting.

In the present embodiment, the acceleration detecting unit 5 detects a horizontal movement or a tilt operation of the terminal by the user, and
The movement direction and movement amount of this movement are calculated based on the detection output, and based on the calculation result, the character string separation position and the conversion candidate selection position are moved, and the terminal is moved in the vertical direction. When the vibration is detected, the cut position and the conversion candidate are determined and stored. For this reason, the terminal can be converted into kanji by the user's horizontal movement or tilt operation of the terminal and the vertical vibration operation.

That is, according to the present embodiment, kanji input can be performed without relying on the depression of a numeric keypad or the operation of a multi-function key. The operability can be improved even for those who do not.

(Second Embodiment) In a second embodiment of the present invention, a representative kana character is designated by a key operation from a Japanese syllabary table or an alphabet table as an input method of a reading kana, and then the representative kana character is inputted. The method of selectively selecting and inputting each character belonging to the column is adopted, and the means for detecting horizontal movement or tilting operation of the terminal by the user using an acceleration sensor is employed as the selection means. Things.

That is, the portable telephone terminal is provided with the acceleration detecting section 5 as shown in FIG.
Is provided with a motion pattern analysis function 21a and a character input control function 21c. Motion pattern analysis function 21a
When the user moves or tilts the terminal in the horizontal direction or vibrates in the vertical direction, calculates the direction and amount of these movements and analyzes the purpose of this operation.

The character input control function 21c changes the kana character or alphabet selection position on the Japanese syllabary table or the alphabet table in accordance with the horizontal movement or tilt operation of the terminal obtained by the movement pattern analysis function 21a. Then, the selected kana character or alphabetic character is determined according to the vibration operation in the vertical direction. Note that the character input control function 21c also performs conversion control from kana or alphabetic characters to kanji in accordance with the horizontal movement or tilt operation of the terminal and the vertical vibration operation.

Next, a description will be given of a character input control operation in the portable telephone terminal configured as described above. FIG. 2 is a diagram showing physical movements applied to the terminal, and FIG. 8 is a flowchart showing the control procedure and control contents.

As shown in FIG. 9, the representative kana characters in the first row of the Japanese syllabary table are associated with the numeric keys on the keypad of the portable telephone terminal. First, the user designates a representative kana character in a column including a kana character to be input by pressing the numeric key. For example, when the user wants to input “e”, the user presses the numeric keypad associated with the representative kana character “a”. As shown in FIG. 8, when detecting that the representative kana character has been pressed in step 8a, the main controller 21 displays the representative kana character on the LCD 34 in step 8b.

In this state, the user performs an operation of moving or tilting the terminal in the left-right direction. Then, the main control unit 21 detects the above-described left-right movement or tilting operation in step 8c or step 8d. And
In accordance with the direction and amount of this operation, five kana characters in the column corresponding to the representative kana characters are sequentially selected and displayed.

For example, if the user moves or tilts the terminal rightward while the representative kana character “a” is specified, the main control unit 21 proceeds from step 8c to step 8
Then, the process proceeds to step e, where the five characters in the column of the representative kana character "A" are sequentially selected and displayed in the forward direction. In contrast,
When the user moves or tilts the device to the left,
The main controller 21 proceeds from step 8d to step 8f, where the five characters in the column of the representative kana character "a" are sequentially selected and displayed in the reverse direction. FIG. 10 shows a selection and display operation of a kana character in a column corresponding to the representative kana character "a".

Assume that the user shakes the terminal in the vertical direction in a state where the desired kana is displayed in a selected manner. Then, the main control unit 21 performs this operation in step 8
When it is detected by g, it is determined that the operation is a fixing operation, and the kana being selected and displayed is stored as a fixed character and displayed on the LCD 34. The movement of the vibration operation in the vertical direction of the terminal is obtained by calculating the direction and amount of the movement from the detection output of the acceleration detection unit 5 and comparing these with a movement pattern registered in advance for a determination operation. Is detected by

Thereafter, similarly, each time the numeric keypad of the keypad is pressed to specify the representative kana character, steps 8a to 8a are executed.
The kana character selection input control in step 8g is repeatedly performed.

When the input of the desired kana character string is completed and the user shakes the terminal once in the vertical direction, the main controller 2
1 then shifts to kanji conversion control. This kanji conversion control is executed in the same procedure as that described with reference to FIG. 4 in the first embodiment.

As described above, in the second embodiment, the terminal is moved in the left-right direction or tilted in the left-right direction.
According to the vertical vibration operation, the selection display and the determination processing of each kana character belonging to the column corresponding to the representative kana character are performed. Therefore, the user can perform only the designation operation of the representative kana character by key operation, and can perform all other operations by moving or tilting the terminal in the left-right direction and by performing the vibration operation in the vertical direction. For this reason, the number of key operations can be significantly reduced, thereby improving operability.

(Third Embodiment) In a third embodiment of the present invention, a kana character corresponding to a vowel in the Japanese syllabary table or the alphabet table is designated by a key operation as an input method of a reading kana, and this designation is performed. The kana character of the row corresponding to the vowel is selectively displayed and determined by a horizontal or tilt operation and a vertical vibration operation of the terminal.

FIG. 11 is a flowchart showing the procedure and contents of the character input control in the third embodiment.
Note that the basic configuration of the mobile phone terminal according to the present embodiment is the same as the configuration shown in FIG. 1, and a description thereof will be omitted.

As shown in FIG. 12, five vowel characters of the Japanese syllabary table are associated with the numeric keypad of the keypad of the portable telephone terminal. The user first specifies the vowel character corresponding to the kana character to be input by pressing the numeric key. For example, when the user wants to input “ma”, the user presses a numeric key corresponding to the vowel character “a”. When detecting the depression of the vowel character in step 11a as shown in FIG.
To be displayed.

In this state, the user performs an operation of moving or tilting the terminal in the up, down, left, and right directions. Then, the main control unit 21 detects the movement of the terminal in the vertical and horizontal directions or the tilting operation in steps 11b to 11e. Then, in accordance with the direction and amount of this operation, each kana character in the row corresponding to the vowel character is sequentially selected and displayed.

For example, if the user moves the terminal to the right of the display screen or tilts the terminal to the right as shown in FIG. Shifts from step 11b to step 11f, where half of the characters "a", "ka", "sa", "ta", and "na" belonging to the row of the vowel character "a" are sequentially sequentially forwarded. Select and display. On the other hand, when the user moves or tilts the terminal to the left of the display screen, the main control unit 2
1 shifts from step 11c to step 11g, where "a", "ka",
“Sa”, “ta”, and “na” are sequentially selected and displayed in the reverse direction.

When the user moves the terminal upward in the display screen or tilts the terminal forward as shown in FIG. 2, the main control unit 21 proceeds from step 11d to step 11h.
And here, the remaining half of the characters belonging to the vowel character "A" stage are "A", "H", "M", "Y",
“La” and “wa” are sequentially selected and displayed in the forward direction. On the other hand, when the user moves the terminal downward in the display screen or tilts the terminal backward as shown in FIG. 2, the main control unit 21 proceeds from step 11e to step 11i, where the vowel character "A" is entered. ”, The remaining half of the characters“ A ”,“ Ha ”,“ Ma ”,“ Ya ”,“ La ”and“ Wa ”are sequentially selected and displayed in the reverse direction. FIG. 13 shows the selection and display operation of each kana character belonging to the row corresponding to the vowel character "a" described above.

It is assumed that the user shakes the terminal in the vertical direction in a state where the desired pseudonym is selected and displayed. Then, the main control unit 21 performs this operation in step 1
If detected in 1j, it is determined that the finalizing operation is performed, and the kana being selected and displayed is stored as finalizing characters and displayed on the LCD 34. The movement of the vibration operation in the vertical direction of the terminal is obtained by calculating the direction and amount of the movement from the detection output of the acceleration detection unit 5 in the same manner as described in the first and second embodiments. These are detected by comparing them with a motion pattern registered in advance for a determination operation.

Thereafter, each time the numeric keypad of the keypad is pressed to specify a vowel character, the kana character selection / input control in steps 11a to 11k is repeated.

When the input of the desired kana character string is completed and the user shakes the terminal once in the vertical direction, the main controller 2
1 then shifts to kanji conversion control. This kanji conversion control is executed in the same procedure as that described with reference to FIG. 4 in the first embodiment.

As described above, in the third embodiment, the terminal belonging to the row corresponding to the vowel character is moved in accordance with the movement of the terminal in the up / down / left / right direction or the tilt operation in the front / back / left / right direction and the vertical vibration operation. The kana character is selectively displayed and confirmed.

Therefore, the user can perform only the operation of designating the vowel character by key operation, and can perform all other operations by horizontal movement or tilt of the terminal, thereby greatly reducing the number of key operations. Thereby, operability can be improved.

(Other Embodiments) The present invention is not limited to the above embodiments, and the following various modifications are possible.

That is, in the second and third embodiments, the character as the base point of the character selection display control is specified by the key operation. However, all the operations are realized by the physical movement of the terminal. Is also possible.

For example, as shown in FIG. 14, a Japanese syllabary table is displayed on the LCD 34, and a cursor CL is displayed over one character in the Japanese syllabary table. Then, in this state, the display position of the cursor CL is moved up, down, left, and right in accordance with the user's movement of the terminal in the left and right direction or the tilt operation, and the movement of the terminal in the vertical direction or the tilt operation in the front and rear direction. . When the terminal is swung in the vertical direction with the cursor CL displayed on the desired character, the character is stored as an input character. In this way, all operations can be realized by moving or tilting the terminal and by vibrating, thereby further improving operability.

In each of the above embodiments, the case of inputting hiragana has been described as an example. However, katakana and alphabets may be input. In the first embodiment, characters are input by a terminal moving device. Although the description has been made by taking the case of performing the operation as an example, a picture or a symbol may be input by a moving operation of the terminal.

Further, in each of the above embodiments, the description has been given by taking the mobile phone terminal as an example, but the mobile information terminal (PDA: Pers
The present invention is applicable to other mobile communication terminals such as onal Digital Assistants).

In addition, the configuration of the mobile communication terminal, the method of analyzing a motion pattern, the procedure and contents of character input control, and the like can be variously modified without departing from the gist of the present invention.

[0072]

As described above in detail, according to the present invention, the terminal is provided with acceleration detecting means for detecting a physical movement applied from the outside, and the terminal movement is detected based on the detection output of the acceleration detecting means. Detects the movement trajectory and recognizes it as a handwritten character and inputs it, or selects and displays characters on the Japanese syllabary table or alphabet table according to the direction of movement of the terminal and the amount of movement, and inputs by confirming operation Like that.

Therefore, according to the present invention, it is possible to easily perform character input without relying on key operations, thereby providing a mobile communication terminal with improved operability.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing an example of a terminal operation mode in an acceleration sensor operation mode of the terminal shown in FIG. 1;

FIG. 3 is an exemplary flowchart showing a procedure of character input control by the terminal shown in FIG. 1 and the first half of the content thereof;

FIG. 4 is a flowchart showing the procedure of character input control by the terminal shown in FIG. 1 and the latter half of the contents thereof;

5 is a diagram showing an example of a character input operation in an acceleration sensor operation mode of the terminal shown in FIG.

FIG. 6 is an exemplary view for explaining an input character separating operation in the acceleration sensor operation mode of the terminal shown in FIG. 1;

FIG. 7 is an exemplary view for explaining a kanji conversion operation in the acceleration sensor operation mode of the terminal shown in FIG. 1;

FIG. 8 is a flowchart showing the procedure of character input control and the first half of the contents in the second embodiment of the mobile phone terminal according to the present invention.

FIG. 9 is a diagram illustrating a configuration of a keypad used for character input control according to the second embodiment.

FIG. 10 is an exemplary view for explaining a character selection operation by character input control according to the second embodiment.

FIG. 11 is a flowchart showing a procedure of character input control and a first half of the contents in a third embodiment of the mobile phone terminal according to the present invention.

FIG. 12 is a diagram illustrating a configuration of a keypad used for character input control according to the third embodiment.

FIG. 13 is a view for explaining a character selection operation by character input control according to the third embodiment.

FIG. 14 is a view for explaining a character selection operation by character input control of the mobile phone terminal according to the fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Radio | wireless part 2 ... Baseband part 3 ... Input / output part 4 ... Power supply part 5 ... Acceleration detection part BT ... Character input button CL ... Cursor 11 ... Antenna 12 ... Antenna duplexer (DPX) 13 ... Receiving circuit (RX) 14 ... frequency synthesizer (SYN) 15 ... transmission circuit (TX) 21 ... main control unit 21a ... movement amount detection function 21b ... movement trajectory display control function 21c ... character input control function 22 ... demultiplexing unit 23 ... audio codec 24 ... multimedia Processing unit 25 LCD control unit 26 Memory unit 31 Microphone 32 Speaker 33 Camera 34 Liquid crystal display (LCD) 35 Key input unit 36 Illuminator 41 Battery 42 Charge circuit (CHG) 43 Voltage Generation circuit (PS) 51: acceleration sensor 52: A / D converter

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) H04M 1/725 G06F 3/023 310L 11/00 303

Claims (5)

[Claims] An acceleration detecting means for detecting a physical movement applied to the terminal from outside, and a movement trajectory of the movement applied to the terminal is obtained based on a detection output of the acceleration detecting means. Display means for displaying a movement locus; inputting the movement locus when the acceleration detection means detects that a movement for a finalizing operation has been applied to the terminal while the display locus is displayed. A mobile communication terminal, comprising: input determination means for recognizing and capturing characters. 2. An acceleration detecting means for detecting a physical movement applied to the terminal from the outside, and a direction of the movement applied to the terminal and a moving amount thereof based on a detection output of the acceleration detecting means. Calculating means for calculating, in a state where one character in the Japanese syllabary table or the alphabet table is designated, when a predetermined motion is applied to the terminal, the direction of the motion obtained by the calculating means and the Selection display means for sequentially selecting and displaying characters belonging to the same row or column as the designated character in the Japanese syllabary table or the alphabet table according to the amount of movement; and characters are selectively displayed by the selection display means Input determination means for taking in the characters being selected and displayed as input characters when the acceleration detection means detects that the movement for the determination operation has been applied to the terminal in the state. A mobile communication terminal characterized by the following. 3. The selection display means, when the acceleration detection means detects that a motion of tilting or horizontally moving the display surface has been applied to the terminal, the movement of the movement obtained by the calculation means. The mobile communication terminal according to claim 2, wherein characters belonging to the same row or column as the designated character in the Japanese syllabary table or the alphabet table are sequentially selected and displayed according to a direction and a moving amount thereof. 4. When the acceleration detecting means detects that a motion representing a kanji conversion instruction operation has been applied to the terminal in a state where the character or character string captured by the input determining means is displayed. 3. The mobile communication terminal according to claim 1, further comprising conversion means for converting the displayed character or character string into kanji. 5. The apparatus according to claim 1, wherein the character conversion unit is configured to display the character or the character string captured by the input determination unit when the terminal is tilted or horizontally moved. Means for changing the break position of the character or the character string in accordance with the direction of the movement and the amount of movement obtained by the calculating means; and When the acceleration detection unit detects that the terminal is applied to the terminal, the unit for determining the partition position, and after the determination of the partition position, the terminal is tilted or horizontally moved to move its display surface. In this case, a plurality of conversion candidates corresponding to the character or character string delimited by the delimiter position are determined in accordance with the direction of the motion and the amount of movement obtained by the calculation unit. Means for selectively displaying one of the plurality of conversion candidates, and wherein the acceleration detection means detects that a motion for a fixing operation has been applied to the terminal in a state where one of the plurality of conversion candidates is selectively displayed. 5. The mobile communication terminal according to claim 4, further comprising: means for determining the conversion candidate being selected and displayed as an input kanji.