JP2005316840A - Portable terminal having character input/conversion function, character input/conversion method and its program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal having character input/conversion function, a character input/conversion method and its program capable of reducing the number of times of key operations according to the actual use status of Japanese. <P>SOLUTION: A key setting part 20 allocates characters from "A(Japanese syllabary)" line to "WA" line to keys for inputting characters for each line, and circulating display for switching characters in each line each time each key is depressed is set. As this circulating display, a display mode in the order of "A" column, "I" column, "U" column, "E" column and "O" column and a display mode in the order of "A" column, "O" column, "I" column, "U" column and "E" column can be set, and a display in the order of "WA, WO, N" and a display mode in the order of "N, WA, WO" can be set in a "WA" line. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a portable terminal having a character input / conversion function, a character input / conversion method, and an improvement of a program therefor.

2. Description of the Related Art Conventionally, portable terminals that have an electronic mail function and the like and are equipped with a character input function have been used. In these portable terminals, character input is generally performed by a multi-tap method in which a predetermined character is cyclically displayed each time a predetermined key is pressed, and a user selects a desired character. Patent Document 1 below discloses a technique for improving the efficiency of character input using such a multi-tap method.
JP 2003-219012 A “Studies on the actual use of Japanese characters as seen from multi-tap input” Shigehiro Kato (Telecommunication Research Foundation Research Report No. 18)

  However, the conventional technique has a problem that the order of the cyclic display of characters adopted in the multi-tap method is not compatible with the actual usage of characters in modern Japanese. For example, in Non-Patent Document 1 described above, research results on the actual use of Japanese characters are described, but “O” is not the most frequently used item after “A”. It is. However, in the normal multi-tap method, the display is repeated in the order of “Aiueo”, resulting in an increase in the number of key operations during character input.

  Moreover, in the above-mentioned patent document 1, when a predetermined key is pressed, a configuration is adopted in which the order of the cyclic display is “Aoi”, but the “A” stage with the highest use frequency is the third. However, it does not necessarily correspond to the actual usage of the Japanese language, and it is necessary to press a predetermined key to display in the order of “Eo Aoi”, and it is sufficient to reduce the number of key operations. I could not say.

  The present invention has been made in view of the above-described conventional problems. The purpose of the present invention is to provide a portable terminal having a character input / conversion function that can reduce the number of key operations in accordance with the actual use of Japanese, and character input. -To provide a conversion method and a program therefor.

  In order to achieve the above object, the present invention is a portable terminal having a character input / conversion function, and assigns a “wa” line to a character input key, and is assigned to the key every time the key is pressed. In addition, key display management means for circularly displaying characters of the “wa” line is provided, and the key display management means displays sound repellent at the head in the cyclic display of the “wa” line.

  Further, the present invention is a portable terminal having a character input / conversion function, wherein characters from the “a” line to the “ra” line are assigned to the character input keys for each line, and each time each key is pressed. Key display management means for circularly displaying the characters of each line assigned to the key is provided, wherein the key display management means displays the “O” stage after the “A” stage of each line.

  Each time the key is pressed, the key display management means changes the order of “A”, “I”, “U”, “E”, “O”, and “Wa” row to “Wa”. Display mode with "N" order and "A", "O", "I", "U", "E", and "Wa" lines It is preferable that can be switched.

  The present invention also relates to a character input / conversion method, wherein a “WA” line is assigned to a character input key, and the character of the “WA” line assigned to the key is cyclically displayed each time the key is pressed. In the key display management step, the “circular display” is cyclically displayed in order.

  Further, the present invention is a program for causing a computer to function as a device having a character input / conversion function, and assigns a “Wa” line to a character input key, and is assigned to the key every time the key is pressed. When the characters in the “WA” line are cyclically displayed, they are cyclically displayed in the order of “NWA”.

  According to the present invention, when the characters on each line are cyclically displayed, the “O” stage is displayed next to the “A” stage on each line, which is necessary for selecting the frequently used “O” stage characters. The number of key presses can be reduced, and the number of key presses for character input can be reduced.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.

  FIG. 1 shows a block diagram of a configuration of an embodiment of a portable terminal having a character input / conversion function according to the present invention. In FIG. 1, the mobile terminal includes a display unit 10, an operation unit 12, a storage unit 14, a communication unit 16, and a control unit 18.

  The display unit 10 is composed of, for example, a liquid crystal display or the like, and displays key input contents such as character data, various graphics, and the like. When the present invention is applied to a personal computer or the like, the display unit 10 can also be configured with a CRT or the like. The key input is performed by the operation unit 12 shown in FIG. The operation unit 12 includes, for example, operation buttons (numeric keypad, cross key, confirmation key) and the like of a mobile terminal. However, when the present invention is applied to a personal computer or the like, area specifying means such as a keyboard and a mouse, A bar code reader or the like can also be used.

  The storage unit 14 includes, for example, a working RAM of the control unit 18, an EEPROM as a nonvolatile memory, a magnetic storage medium, and the like, and stores various data such as key input contents.

  The communication unit 16 communicates with the base station by a known method to realize a call function as a mobile communication terminal. When the present invention is applied to a PDA (Personal Digital Assistance), a personal computer, or the like, the communication unit 18 is not necessarily required.

  The control unit 18 includes, for example, a CPU and controls these operations while exchanging data with the display unit 10, the operation unit 12, the storage unit 14, and the communication unit 16.

  The key setting unit 20 of the control unit 18 assigns characters from the “A” line to the “Wa” line for each character input key, and sets the order in which the characters on each line are switched each time the key is pressed. To control the processing. In the present invention, each time a key is pressed, the display mode is such that the characters in each line are switched in the order of “A”, “I”, “U”, “E”, and “O”. The display modes can be set in the order of “A”, “O”, “I”, “U”, and “E”. In addition, a display mode in which the “WA” line is in the “WAON” order and a display mode in which the “WAWA” order is set can be set. These display modes can be switched by operating a switching screen described later.

  The display control unit 22 mainly controls the content displayed on the display unit 10. Further, every time a character input key is pressed, the process of cyclically displaying the characters on each line in the order set by the key setting unit 20 is also controlled. The key setting unit 20 and the display control unit 22 constitute a key display management unit according to the present invention.

  The determination unit 24 performs control for determining whether the mode of the character switching order set by the key setting unit 20 is.

  FIG. 2 shows an example of the key layout of the operation unit 12 used in the mobile terminal. In FIG. 2, “10” to “R” and “Waon” are assigned to different keys (1 to 0) for each row, and the * key and # key are provided with muddy symbols and other symbols. Assigned.

  FIG. 3 and FIG. 4 show an example of a line assigned to each key and an order in which characters on each line are switched each time the key is pressed. FIG. 3 shows the conventional setting, and FIG. 4 shows the setting of the present invention. The character switching order data is stored in the storage unit 14, the character setting order shown in FIG. 3 or 4 is read and set by the key setting unit 20, and the character of the present invention is displayed by the display control unit 22. Circular display is executed.

  3 and 4, the numeric keys 1, 2, 3, 4 etc. are assigned “a”, “ka”, “sa”, “ta”, etc. in the “full-width kana” input mode. In the “half-width kana” input mode, “A” line, “K” line, “SA” line, “TA” line, etc. are allocated. In the “half-width alphanumeric” input mode, numbers, “a”, “d”, and the like are assigned. Characteristic of the character assignment according to the present invention shown in FIG. 4 is that in the line assigned to each key, the display order of the characters at each stage switched in accordance with the key press is the next to the “A” stage. This is the point that is marked as “O”. For example, the “A” line is cyclically displayed in the order of “Aoi Ue” as the number of key presses is increased, and the “A” line is cyclically displayed in the order of “Kakokike”. In addition, the “WA” line assigned to the 0 key is cyclically displayed in the order of “WAWAWA” (sound repellent first). In the “half-width kana” input mode, the same character circulation display order is set.

  In this way, the “O” stage and “N”, which are frequently used, can be selected by setting the order of the cyclic display to “O” stage after the “A” stage and the order of the cyclic display of “Now”. The number of key presses during selection can be reduced.

  According to Non-Patent Document 1 described above, in a normal sentence, the appearance probability of the “A” stage is 28%, the appearance probability of the “I” stage is 21%, the appearance probability of the “U” stage is 16%, The appearance probability of the “stage” is 14%, and the appearance probability of the “stage” is 21%. According to the result of this investigation, each time the key is pressed, the conventional method of cyclically displaying “A”, “I”, “U”, “E”, and “O” in order, Table 1 shows the expected value of the number of times the key is pressed to display the column characters.

From the results in Table 1, the expected value of the number of key presses for all stages is
Expected value = 0.28 + 0.42 + 0.48 + 0.56 + 1.05 = 2.79
It becomes.

  On the other hand, in the method of the present invention in which the “A” stage, the “O” stage, the “I” stage, the “U” stage, and the “E” stage are cyclically displayed each time the key is pressed, each stage is displayed. Table 2 shows the expected value of the number of times the key is pressed to display the character.

From the results in Table 2, the expected value of the number of key presses for all stages is
Expected value = 0.28 + 0.63 + 0.64 + 0.70 + 0.42 = 2.67
It becomes.

From the above results, according to the cyclic display order of the present invention, the number of times the key is pressed when the characters from the “a” line to the “ra” line are cyclically displayed is compared with the conventional cyclic display order. 2.67 / 2.79 = 0.957 (95.7%)
It can be seen that the number decreases.

  In the case of the “Wa” line, according to Non-Patent Document 1, the appearance rate of the sound repellent “n” is 8 times the appearance rate of “Wa” and “O” in normal sentences. ing. According to this investigation result, in the conventional method of cyclically displaying “Waon” in order of “Waon” every time a key is pressed, “n” is 8 each when “Wa” and “Oh” appear once. Table 3 shows the number of times the key is pressed to display each character.

From the results shown in Table 3, the number of times the key is pressed when "wa", "wo", and "n" are displayed in sentences in which "wa" and "wo" appear once each.
The number of times of pressing = 48 + 1 + 2 = 51 times.

  On the other hand, in the method of the present invention in which “Nowa” is cyclically displayed every time a key is pressed, the number of times the key is pressed to display each character is as shown in Table 4.

From the results in Table 4, the number of times the key is pressed when "wa", "wo", and "n" are displayed in sentences in which "wa" and "wo" appear once each.
Number of presses = 16 + 2 + 3 = 21
It becomes.

From the above results, according to the cyclic display order of the present invention, the number of key presses in the case of cyclically displaying the characters of the “Wa” line in the order of “Wanwa” is 21/51 = 0.412 (41.2%) compared with the case of cyclic display in order
It can be seen that the number decreases.

  In FIG. 5, each time the key is pressed, the “A” row, the “La” row are changed from “A” row, “I” row, “U” row, “E” row, “O” row. And the display mode that displays the "Wa" line in the order of "Wa-on" and the "A" line to the "La" line from the "A" line, the "O" line, the "I" line, and the "U" line. An example of a screen for switching and setting the display mode in which the order of the stage, the "e" stage, and the display mode for cyclically displaying the "wa" line in the order of "nawa" is shown. The display of the setting screen is controlled by the display control unit 22 and displayed on the display unit 10.

  In FIG. 5, the circular display (column) is set with a switching button for the cyclic display (“Aioo” or “Aoiue”) from the “A” line to the “R” line, and the cyclic display (sound repellent) is A switching button for the circular display of “Wa” line (“Waon” or “Wawano”) is set. The user can appropriately set the display mode by using these switching buttons, and can input characters in a desired display mode that is easy for the user to input.

  6 and 7 show a flow of the operation of the mobile terminal according to the present embodiment when the display mode is set on the setting screen shown in FIG. FIG. 6 shows the switching operation of the cyclic display from the “a” line to the “ra” line, and FIG. 7 shows the switching operation of the cyclic display of the “wa” line.

  In FIG. 6, the determination unit 24 determines whether or not the cyclic display (dan) is set to “Aoi Ue” on the setting screen of FIG. 5 (S <b> 1).

  If it is determined in S1 that the cyclic display (column) is set to “Aoi Ue”, the key setting unit 20 reads the data table shown in FIG. The cyclic display from the line “R” is set to a display mode for cyclic display in the order of “A”, “O”, “I”, “U”, and “E” (S2).

  On the other hand, when it is determined in S1 that the cyclic display (column) is not set to “Aoi Ue”, the key setting unit 20 reads the data table shown in FIG. The cyclic display from the “a” line to the “la” line is set to a display mode for cyclic display in the order of “a”, “i”, “u”, “e”, and “o” (S3). .

  As described above, every time the key is pressed, the display mode and the “A” level, “O” level are displayed in the order of “A” level, “I” level, “U” level, “E” level, “O” level. It is possible to switch and set the display mode for cyclic display in the order of stage, "I" stage, "U" stage, and "E" stage. Note that such display mode switching setting can be performed not only in the “full-width kana” input mode but also in the “half-width kana” input mode.

  In FIG. 7, the determination unit 24 determines whether or not the cyclic display (sound repellent) is set to “Wow” on the setting screen of FIG. 5 (S10).

  If it is determined in S10 that the cyclic display (sound repellent) is set to “Wow”, the key setting unit 20 reads the data table shown in FIG. The display mode is set so that the cyclic display of the rows is cyclically displayed in the order of “Now” (S11).

  On the other hand, if it is determined in S10 that the cyclic display (sound repellent) is not set to “Wow”, the key setting unit 20 reads the data table shown in FIG. The cyclic display of the “Wa” line is set to a display mode for cyclic display in the order of “Waon” (S12).

  As described above, each time the key is pressed, the display mode for cyclic display in the “noodle” order and the display mode for circular display in the “narrow” order can be switched. Note that such a cyclic display mode switching setting can be performed not only in the “full-width kana” input mode but also in the “half-width kana” input mode.

  In the present embodiment, the display mode switching setting can be performed within the same input mode such as “full-width kana” and “half-width kana”, and a desired cyclic display order is maintained during character input. For this reason, a predetermined key operation is not required every time it is necessary to change the order of cyclic display during character input as in the prior art, and in this respect as well, the number of key presses during character input can be suppressed. .

    Although the embodiment described above is an example in the case of inputting Japanese (50 sounds), it is preferable to change the order of English alphabets as appropriate by the same investigation. For example, the alphabetical display order in the “half-width alphanumeric” input mode shown in FIG. 3 and FIG. 4 can be changed according to the appearance frequency of English characters when inputting a mail address or URL of a browsing function. It is preferable to configure as described above.

It is a block diagram of the structure of one Embodiment of the portable terminal which has the input / conversion function of the character concerning this invention. It is a figure which shows the example of the keyboard layout of the operation part used for the portable terminal shown by FIG. It is a figure which shows the example of the order which switches the character of each line every time the key assigned to each key shown in FIG. 2 and each key is pressed. It is a figure which shows the example of the order which switches the character of each line every time the key assigned to each key shown in FIG. 2 and each key is pressed. It is a figure which shows the example of the screen for switching and setting the input mode from which the order of the cyclic display of a character differs. It is a flowchart of operation | movement of the portable terminal which concerns on this embodiment when the setting of input mode is performed by the setting screen shown by FIG. It is a flowchart of operation | movement of the portable terminal which concerns on this embodiment when the setting of input mode is performed by the setting screen shown by FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Display part, 12 Operation part, 14 Storage part, 16 Communication part, 18 Control part, 20 Key setting part, 22 Display control part, 24 Determination part.

Claims (5)

A portable terminal having a character input / conversion function,
Key display management means for allocating the “Wa” line to the character input key and circularly displaying the characters of the “Wa” line assigned to the key each time the key is pressed,
The mobile terminal according to claim 1, wherein the key display management means displays sound repellent at the head in the cyclic display of the “wa” line. A portable terminal having a character input / conversion function,
A key display management means for allocating characters from the “a” line to the “ra” line for each character input key for each line and cyclically displaying the characters of each line assigned to the key each time the key is pressed,
The mobile terminal characterized in that the key display management means displays the "O" stage after the "A" stage of each row.   3. The portable terminal having a character input / conversion function according to claim 2, wherein the key display management means performs a "A" stage, a "I" stage, a "U" stage, an "E" stage, Display mode with “O” row order and “Wa” row as “Wa-on” order and “A” row, “O” row, “I” row, “U” row, “E” row order and A portable terminal having a character input / conversion function, wherein a display mode in which "WA" line is in the "NWA" order can be switched. A character input / conversion method,
"Wa" line is assigned to the character input key, and every time the key is pressed, the "Wa" line character assigned to the key is cyclically displayed. Character input / conversion method characterized by this. A program that causes a computer to function as a device having a character input / conversion function, assigning a “Wa” line to a character input key, and each time the key is pressed, the character in the “Wa” line is assigned to the key. A program characterized by cyclically displaying “nwa” in order to display cyclically.

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