JP5280429B2 - Character input device and display control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a character input device and a display control method which have improved operability by actualizing efficient character input and function execution. <P>SOLUTION: Character codes respectively corresponding to a plurality of different character types assigned to a depressed character input key 14 are generated by a main control part 121 and the generated character codes of the plurality of different character types are stored in a RAM 121b, and respective character codes read from the RAM 121b are converted to respective character codes by a character generator ROM 117a, and the converted character codes of the plurality of different character types are displayed in one screen of a display part 21. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a character input device and a display control method.

  For conventional mobile phones (character input devices), e-mail function etc. is launched, and texts such as memos are written and saved in notepad using character input function, and e-mails with texts written in the text A transmission technique or the like is known as a known technique.

  In the conventional character input function, first, the user has started up a function for inputting characters such as a memo pad function, and then the function is configured to input characters. For example, when calling a memo pad function with a conventional mobile phone, it is necessary to perform a five-step calling operation of “standby screen” ⇒ “main menu” ⇒ “useful function” ⇒ “note pad” ⇒ “create new”. is there.

  Patent Document 1 describes a technique for reading two existing sentences, dividing and displaying them on a screen, and editing them as one sentence. Patent Document 2 describes a technique for facilitating the movement of a pointer on the screen by dividing and selecting screen areas.

Japanese Patent Laid-Open No. 5-342206 JP 2002-14773 A

  However, the conventional character input function is configured such that a user first starts a function for inputting characters and then inputs characters. Therefore, if you want to take notes immediately during a call, you must first call up the notepad function, and you may forget that you were trying to take notes during a multi-step calling operation.

  As described above, in a conventional mobile phone, when inputting characters to perform a predetermined function (for example, memo creation or mail creation), a desired function is activated in advance, and then a character is entered. In order to input (text, destination, etc.), it was necessary to perform complicated key operations. For this reason, the operability of the user may be impaired.

  The present invention has been made in view of the above, and an object thereof is to provide a character input device and a display control method that enable efficient character input and function execution to improve operability. is there.

The present invention includes an operation unit including a display unit, an input key to which characters of a plurality of input types including numbers are assigned, a call key for making a call, and an input type selection key for selecting the input type And when the input key is operated in a state where the standby screen is displayed on the display unit, a control unit that causes the display unit to display characters of a plurality of input types assigned to the operated input key, The control unit is a screen for performing a process of making a call using the displayed number when the call key is operated in a state where the characters of the plurality of input types are displayed on the display unit. was displayed on the display unit, when the input type selection key is operated, the change of the character type that is selected for the character being displayed, as a character of the character type selected characters other character type was changed Display section It is displayed, when an operation of starting the predetermined function is the character input, characterized in that to display a screen to start the predetermined function using the selected character type of characters are displayed on the display unit Relates to the device.
In addition, when the input key is operated while the standby screen is displayed on the display unit, the control unit displays a plurality of input type characters assigned to the operated input key and the characters of the input type. When the character type of the displayed character is changed, the display of the function associated with the character of the selected character type displayed is changed. Then, it is preferable to display other functions according to the selected character type on the display unit.

In addition, in the display control method of a character input device including at least a display unit, the present invention provides a number assigned to the character input operation when a character input operation is performed in a state where a standby screen is displayed on the display unit. A first display step of displaying a plurality of input type characters including each on the display unit, and when a transmission operation is performed in a state where the plurality of input type characters are displayed on the display unit, The input type selection key is operated in the second display step for displaying a screen for performing a telephone call process using the displayed numbers, and the characters of the plurality of input types displayed on the display unit. If the, change the character type that is selected for the character being displayed, a third displaying step of displaying a character of the character type that has been selected characters character type that the change operation for starting a predetermined function is The That when, a display control method having a fourth display step of displaying a screen to start the predetermined function on the display unit by using the selected character type of characters being displayed.

  According to the present invention, it is possible to improve the operability by enabling efficient character input and function execution.

It is a figure which shows the external appearance perspective view of the mobile telephone apparatus 1 which is an example of the portable terminal device which concerns on this invention. It is a figure which shows the perspective view of the state which folded the mobile telephone apparatus. FIG. 3 is an exploded perspective view of members built in an operation unit side body unit 2. FIG. 4 is an exploded perspective view of members built in the display unit side body 3. FIG. 5 is a diagram showing a layout diagram (No. 1) of keys provided on the front panel 2a of the operation unit side body 2; FIG. 10 is an enlarged layout view (No. 2) of a numeric keypad portion of a key provided on the front panel 2a of the operation unit side body 2; 4 is a block diagram for explaining functions of the mobile phone 1. FIG. It is a flowchart for demonstrating 1st Embodiment of this invention. It is a figure which shows the numerical code, hiragana code, alphabetic code, katakana code, symbol code, and other codes which are memorize | stored in ROM121a. FIG. 6 is a diagram showing images of different character characters displayed in a display area 21a of the display unit 21. 4 is a flowchart showing a subroutine for executing functional processing of the mobile phone 1. It is a flowchart for demonstrating 2nd Embodiment of this invention. 4 is a flowchart showing a subroutine for executing functional processing of the mobile phone 1. It is a flowchart for demonstrating 3rd Embodiment of this invention. FIG. 6 is a diagram showing images of different character characters displayed in a display area 21a of the display unit 21. 4 is a flowchart showing a subroutine for executing functional processing of the mobile phone 1. It is a flowchart for demonstrating 4th Embodiment of this invention. 4 is a flowchart showing a subroutine for executing functional processing of the mobile phone 1. It is a figure which shows the function soft key corresponding to the image of the character character of a different character type displayed on the standby screen of the display part 21, and a character type. It is a figure which shows the content of the function soft key table referred by the main control part.

  The best mode for carrying out the present invention will be described below with reference to the drawings. Hereinafter, a mobile phone device will be described as an example of a mobile terminal device, but the present invention is not limited to this, and a PHS (Personal Handy Phone System), a PDA (Personal Digital Assistant), a portable navigation device, a notebook It may be another portable terminal device such as a personal computer.

  <First Embodiment> FIG. 1 is an external perspective view of a cellular phone device 1 which is an example of a portable terminal device according to the present invention which communicates with a host device (for example, a base station).

  The cellular phone device 1 has a front panel 2a, a front case 2b, a rear case 2c, and a rear panel 2d (not shown) on the surface, and a front panel 3a. , A front case 3 b, a rear case 3 c (FIG. 2), and a rear panel 3 d (FIG. 2), and a display unit side body 3 (second housing).

  The operation unit side body unit 2 has an operation key group 11 and a voice input unit 12 to which a voice uttered by a user of the mobile phone device 1 is input on the surface of the front panel 2a. The operation key group 11 includes a function setting operation key 13 for activating various functions such as various settings, a telephone book function, and a mail function, and a character input for inputting a telephone number and characters such as mail. The key 14 and a determination operation key 15 for performing determination and scrolling in various operations are configured. Further, a cap that covers an interface for communicating with an external device (for example, a host device) is provided on the side surface of the operation unit side body unit 2.

  Further, the display unit side body unit 3 exposes, on the front panel 3a, a display unit 21 for displaying various information and an audio output unit 22 for outputting the voice of the other party on the call.

  As shown in FIG. 1, the upper end of the operation unit side body 2 and the lower end of the display unit side body 3 are connected via a hinge mechanism 4 (connection unit). That is, the hinge mechanism 4 connects the one end side (upper end part) of the operation unit side body part 2 and the one end side (lower end part) of the display part side body part 3 so as to be rotatable. In addition, the mobile phone device 1 moves the operation unit side body unit 2 and the display unit side body unit 3 connected to each other via the hinge mechanism 4 to display the operation unit side body unit 2 and the display. The unit-side housing 3 is folded (a first state and a folded state that overlap each other), or the operation unit-side housing 2 and the display unit-side housing 3 are opened to each other (the degree of overlapping) In the second state, which is lower than the folded state, or the open state). In the present embodiment, the foldable mobile phone device 1 using the hinge mechanism 4 is described. However, the foldable mobile phone device 1 is not foldable. A slide type that is slid in one direction, a rotary type that is rotated about one axis around the axis line along the overlapping direction, and both cases 2 and 3 are connected via a biaxial hinge. Or a wristwatch that cannot be folded.

  FIG. 2 is a perspective view of the cellular phone device 1 in a folded state. The operation unit side body unit 2 includes, on one side surface, a side key 30 to which a predetermined function is assigned, and an interface cap 31 in which external memory is inserted and removed. A slide key 32 is provided on one side surface of the display unit side body 3. On the surface of the front case 3b of the display unit side body 3, a camera 33 for imaging a subject and a light 34 for irradiating the subject with light are exposed.

  FIG. 3 is an exploded perspective view of members built in the operation unit side body 2. As shown in FIG. 3, the operation unit side body 2 includes a front panel 2a, a front case 2b (in the figure, the front panel 2a and the front case 2b are coupled), and the operation key group described above. 11, a printed circuit board 50 (first circuit board) provided with various electronic components such as a RF (Radio Frequency) module for the mobile phone device 1, a flexible wiring board 45, a flexible wiring board 45, and a mobile phone device 1. Hinge mechanism 4 (4a, 4b), antenna element 55, short-range communication antenna element 56, rear case 2c, and rear panel 2d for protecting battery 60 are provided.

  In the operation unit side body 2, the front case 2b, the key sheet 40, the printed circuit board 50, and the rear case 2c are arranged in a stacked manner. The battery 60 is accommodated so as to be detachable from the outside of the rear panel 2d.

  As shown in FIG. 3, the front case 2 b and the rear case 2 c are arranged so that their concave inner surfaces face each other, and are joined so that their outer peripheral edges overlap each other. Further, the key sheet 40 and the printed circuit board 50 are built in between the front case 2b and the rear case 2c. That is, the key sheet 40 is laminated on the upper surface of the printed board 50.

  Various electronic components (not shown) are arranged on the printed circuit board 50. Various electronic components form a plurality of circuit blocks by a predetermined combination. For example, various circuit blocks including a wireless circuit, a power supply circuit, a digital circuit, and the like are formed.

  A plurality of key holes are formed on the inner surface of the front panel 2a facing the display unit 21 of the display unit side body 3 in a state in which the cellular phone device 1 is folded. From each of the plurality of key holes, the pressing surfaces of the function setting operation key 13, the character input key 14, and the determination operation key 15 formed on the key sheet 40 are exposed. By pressing the pressing surfaces of the function setting operation key 13, the character input key 14, and the determination operation key 15 constituting the exposed operation key group 11, a metal dome (a bowl shape) in each corresponding key switch is pressed. ) Is pressed, contacts the switch terminal, and becomes electrically conductive.

  An antenna element 55 (antenna) housed in the base is disposed on the other end side of the rear case 2c opposite to the hinge mechanism 4. That is, the antenna element 55 is disposed on the other end side of the mobile phone device 1. Specifically, the antenna element 55 is disposed on the end side opposite to the hinge mechanism 4 side in the mobile phone device 1. The antenna element 55 is formed of a strip-shaped sheet metal.

  The antenna element 55 is an antenna that transmits and receives electromagnetic waves related to telephone calls, e-mails, and the like, and is fed from the printed circuit board 50 through a feed terminal (not shown). As a result, the antenna element 55 is supplied with power from the printed circuit board 50 via the power supply terminal and is connected to an RF module or the like provided on the printed circuit board 50. In the present embodiment, the position of the antenna element 55 is provided at one end of the rear case 2c. However, the antenna element 55 may be disposed at any location inside the operation unit side body 2. Further, the position of the antenna element 55 may be arranged at any location inside the display unit side body 3.

  FIG. 4 is an exploded perspective view of members built in the display unit side body 3. As shown in FIG. 4, the display unit side body 3 includes a front panel 3a, a front case 3b, a hinge mechanism 4, speakers 70a and 70b, a motor 75, a display unit 21, and a display unit 21. A connected printed circuit board 80 (second circuit board), a rear case 3c, and a rear panel 3d are provided. In the display unit side body 3, the front panel 3a, the front case 3b, the display unit 21, the printed circuit board 80, the rear case 3c, and the rear panel 3d are arranged in a stacked manner.

  As shown in FIG. 4, the front case 3 b and the rear case 3 c are arranged so that their concave inner surfaces face each other, and are joined so that their outer peripheral edges overlap each other. Further, the display unit 21 and the printed circuit board 80 are sandwiched between the front case 3b and the rear case 3c. Speakers 70 a and 70 b and motor 75 are connected to printed circuit board 80.

  FIG. 5A is a diagram showing an arrangement diagram (No. 1) of keys provided on the front panel 2 a of the operation unit side body 2. FIG. 5B is an enlarged layout view (No. 2) of the numeric keypad portion of the key provided on the front panel 2 a of the operation unit side body 2.

  From the plurality of key holes formed in the front panel 2a, the pressing surfaces of the function setting operation key 13, the character input key 14, and the determination operation key 15 formed on the key sheet 40 are exposed.

  The function setting operation key 13 is provided with a character type selection key 13a, a “WEB” key 13b, a “mail” key 13c, and an “address book” key 13d.

  The character input key 14 includes an “end call” key 14a, a “3” key 14b, a “6” key 14c, a “9” key 14d, a “#” key 14e, a “clear” key 14f, a “2” key 14g, “5” key 14h, “8” key 14i, “0” key 14j, “outgoing” key 14k, “1” key 14m, “4” key 14n, “7” key 14p, “*” key 14q are provided. ing.

  Correspondingly, the function setting operation key 13 constituting the exposed operation key group 11, the character input key 14, and the pressing surface of the determination operation key 15 including the cursor key and the determination key as soft keys are pressed. The apex of the metal dome (saddle-like shape) in each key switch is pressed and comes into electrical contact with the switch terminal.

  Each key constituting the operation key group 11 is predetermined according to a deformed state such as an open / close state or a front / back state of the operation unit side body 2 and the display unit side body 3 and the type of application being activated. Function is assigned (key assignment). In the mobile phone 1, when each key constituting the operation key group 11 is pressed by the user, an operation corresponding to the function assigned to each key is executed.

  FIG. 6 is a diagram illustrating an example of a functional block diagram illustrating functions of the mobile phone 1. Next, the function of each part of the mobile phone 1 will be described with reference to the block diagram shown in FIG. In addition, you may implement | achieve arbitrary functions among the functions of the mobile telephone 1 demonstrated below in cooperation with the program stored in CPU, ROM, or RAM.

  The mobile phone 1 according to the present embodiment demodulates radio waves received from the antenna unit 101 and is based on a predetermined communication method (based on a mobile communication network, for example, CDMA (Code Division Multiple Access) 2000_1x). A telephone receiving unit 103 that performs telephone reception, mail reception, download of a Web page having a predetermined URL from the Internet, and the like based on the predetermined communication method. A telephone that modulates data and transmits a radio wave from the antenna unit 101 in order to send a call or mail with another communication terminal device via a base station, or to send a predetermined URL on the Internet. The mail is received via the call receiving unit 103 based on the transmission unit 105 and the predetermined communication method. A mail receiving unit 107 having a mailer function, a mail transmitting unit 109 having a mailer function for transmitting mail via the telephone transmission unit 105 based on the predetermined communication method, and a telephone call based on the predetermined communication method A browser unit 111 that transmits a predetermined URL to the Internet via the unit 105 and downloads a Web page having the predetermined URL from the Internet via the telephone reception unit 103.

  In addition, the mobile phone 1 according to the present embodiment includes an input operation unit 113 that detects that any key provided in the operation key group 11 is pressed, and converts the key into an electrical signal. An input data acquisition unit 115 that inputs an input signal to acquire input data corresponding to each key provided in the operation key group 11, and a character code is written in the VRAM 119, and the character code read from the VRAM 119 is converted into a character generator. A display control unit 117 functioning as display means of the present invention that converts image data into character data by the ROM 117a and generates image data, and a display unit 21 that displays image data generated by the display control unit 117 are provided. In addition, the mobile phone 1 of this embodiment includes a ROM 121a that stores a control program and functional modules for controlling each unit of the mobile phone 1, and a work RAM 121b that serves as a storage area that is temporarily used when the control program is executed. And a main control unit 121 having a CPU 121c that controls each unit of the mobile phone 1 in accordance with a control program read from the ROM 121a.

  Hereinafter, embodiments of the present invention will be described in detail. Since the configuration of each embodiment is the same (explained), the operation will be described with reference to the flowchart shown in FIG.

  FIG. 7 is a flowchart for explaining the first embodiment of the present invention. In the first embodiment, one key is pressed from a standby screen displayed on the display unit 21 by the mobile phone 1 (usually a standby screen when the user carries around, in other words, a screen waiting for input from the user). In this case, the operation until multiple characters assigned to the key (including hiragana, kana, letters, numbers, symbols, figures, etc.) are simultaneously displayed on the divided screens is explained. To do. In the present invention, the character type assigned to the key is set as the input type.

  First, in step S5, the main control unit 121 initializes pointer addresses corresponding to a plurality of storage areas of the RAM 121b and the VRAM 19 to predetermined start values, and proceeds to step S10.

  Next, in step S10, the main control unit 121 detects whether or not the character input key is pressed, and determines whether or not the character input key is pressed in step S20. If the character input key is pressed, the process proceeds to step S30. If the character input key is not pressed, the process returns to step S10.

  When it is detected that the character input key is pressed, in step S30, the main control unit 121 inputs the key data of the key input from the input data acquisition unit 115, and the character assigned to this key data. A character code is generated by reading the code from the ROM 121a. That is, in the ROM 121a, as shown in FIG. 8, characters for each of a plurality of character types such as a numeric code, a hiragana code, an alphabetic code, a katakana code, a symbol code, and other codes are inputted with respect to one key data inputted. A code is stored as input information of the present invention, and a character code for each different character type can be read from the ROM 121a for one key data to be input. Therefore, for a plurality of different key data, a plurality of character codes corresponding to different character types can be read from the ROM 121a.

  Next, in step S40, the character codes for each of the plurality of character types read from the ROM 121a are stored in the RAM 121b in the storage area for each character type. As a result, as shown in FIG. 8, different character codes are stored in the respective storage areas of the RAM 121b.

  In step S50, the main control unit 121 reads out different character codes stored in the respective storage areas of the RAM 121b, and outputs them to the display control unit 117, whereby the main control unit 121 outputs them to the VRAM 119 connected to the display control unit 117. The different character codes read from the RAM 121b are stored, and the transfer is completed. As a result, different character character codes are stored in the respective storage areas of the VRAM 119 as shown in FIG.

  Here, the display control unit 117 reads the character character code from the VRAM 119 at a predetermined display rate. The character data corresponding to the character character code read from the VRAM 119 is read from the character generator ROM 117a and converted into character data. Image data is generated as image information of the invention. The image data of different character types generated by the display control unit 117 is displayed on the display unit 21. As a result, as shown in FIG. 9, different character character images are displayed in the display area 21 a of the display unit 21. The display shown in FIG. 9 is a screen displayed immediately after the standby screen, but it is also possible to display a character character image superimposed on the standby screen.

  In step S60, the main control unit 121 detects whether or not the character input key is pressed, and determines whether or not the character input key is pressed in step S70. If the character input key is pressed, the process proceeds to step S80, whereas if the character input key is not pressed, the process proceeds to step S90.

  When it is detected in step S70 that the character input key has been pressed, in step S80, the main control unit 121 increments (+1) the pointer address corresponding to the storage area of the RAM 121b and the VRAM 19, and returns to step S30.

  On the other hand, in step S90, the main control unit 121 functions as a detection unit of the present invention, and determines whether or not a function key for executing a predetermined function has been pressed. If the function key is pressed, the process proceeds to step S100. If the function key is not pressed, the process returns to step S70, and the determination in step S70 and step S90 is performed until the character input key or the function key is input. Repeat the process.

  In step S90, the main control unit 121 functions as the first execution means of the present invention, and proceeds to step S100 when it is detected that a function key for executing a predetermined function has been pressed. Step S100 is a subroutine for executing function processing, and a detailed flowchart of this subroutine is shown in FIG.

  Moving to FIG. 10, in step S105, the main control unit 121 determines whether or not the “mail” key 13d is pressed as a function key. If it is determined that the “mail” key 13d is pressed based on the key data input from the input data acquisition unit 115, the process proceeds to step S110. In step S110, the character code of one character type displayed on the screen corresponding to this function key is selected and read from the storage area of the RAM 121b and stored in the work area of the RAM 121b. When the “mail” key 13d is pressed, it can be assumed that the body of the mail has been keyed in advance, so the storage area of “Hiragana code” provided in the RAM 121b is selected, and the character code is selected from this storage area. Read and store in the work area of the RAM 121b.

  Next, in step S115, the main control unit 121 reads and executes the mail function module stored in the ROM 121a in order to execute the mail function based on the character code of the selected character type. In this case, the input operation of the mail text by hiragana input can be continued.

  On the other hand, if the “mail” key 13d is not pressed in step S105, the process proceeds to step S120, and the main control unit 121 determines whether or not the “address book” key 13c is pressed as a function key. If it is determined that the “address book” key 13c is pressed based on the key data input from the input data acquisition unit 115, the process proceeds to step S125. In step S125, the character code of one character type displayed on the screen corresponding to this function key is selected and read from the storage area of the RAM 121b and stored in the work area of the RAM 121b. When the “address book” key 13c is pressed, it can be assumed that the name of the address book has been entered in advance with the name of the address book as katakana. Therefore, the storage area of the “katakana code” provided in the RAM 121b is selected. The character code is read from the storage area and stored in the work area of the RAM 121b.

  Next, in step S130, the address book function module is executed to execute the address book function based on the character code of the selected character type. In this case, the address book can be searched based on a name input operation by katakana input.

  If the “address book” key 13c is not pressed in step S120, the process proceeds to step S135, and the main control unit 121 determines whether the “Web” key 13b is pressed as a function key. If it is determined that the “Web” key 13b is pressed based on the key data input from the input data acquisition unit 115, the process proceeds to step S140. In step S140, the character code of one character type displayed on the screen corresponding to this function key is selected and read from the storage area of the RAM 121b and stored in the work area of the RAM 121b. When the “Web” key 13b is pressed, it can be assumed that the URL address of the Web site has been previously keyed in. Therefore, the “alphabetic code” storage area provided in the RAM 121b is selected, and characters are selected from this storage area. The code is read and stored in the work area of the RAM 121b.

  Next, in step S145, in order to execute the Web function based on the character code of the selected character type, the Web function module is executed and the browser unit 111 is activated. In this case, the browser unit accesses the URL address by the alphabet input stored in the storage area of “English code”, and the user can browse the Web site.

  If the “Web” key 13b is not pressed in step S135, the process proceeds to step S150, and the main control unit 121 determines whether or not the “call” key 14k is pressed as a function key. If it is determined that the “call” key 14k is pressed based on the key data input from the input data acquisition unit 115, the process proceeds to step S155. In step S155, the character code of one character type displayed on the screen corresponding to this function key is selected and read from the storage area of the RAM 121b and stored in the work area of the RAM 121b. When the “send” key 14k is pressed, it can be assumed that the telephone number has been previously keyed, so the “numerical code” storage area provided in the RAM 121b is selected and the character code is read from this storage area. And stored in the work area of the RAM 121b.

  Next, in step S160, the telephone function module is executed to activate the telephone call unit 105 in order to execute the call function based on the character code of the selected character type. In this case, the user can make a call to the other party's phone based on the phone number corresponding to the number of the character code stored in the storage area of the “numeric code”.

  If the “Send” key 14k is not pressed in step S150, the process proceeds to step S170, and the main control unit 121 performs exception processing because a function key other than the above is received, returns to the main routine, and ends the process. To do.

  As described above, in the first embodiment, when the cellular phone device 1 detects pressing of a character key from the standby screen, a plurality of characters assigned to the key (including characters, symbols, figures, etc.) are included. ) Are simultaneously displayed on the divided screens, it is possible to easily perform efficient input. Furthermore, when a function key is pressed, a character code that is optimal for the function key can be acquired from character codes that have been input in advance, so that a function operation corresponding to the function can be easily performed.

  In the first embodiment, whether or not the function key pressing time is longer or shorter than a predetermined reference time is detected, and if the function key pressing time is longer than the predetermined reference time, it is specified. If the function is executed based on the character code of the character type and the pressing time is shorter than the predetermined reference time, the function is preferably executed based on the character code of the character type different from the specific character type. In this case, the main control unit 121 functions as a first changing unit that changes the function based on the pressing time of the function key.

  That is, for example, in the first embodiment, the simplification of the function call for the Web function has been described. However, the present invention is not limited to such a case, and the pressing time of the Web function key is predetermined. It may be configured to detect whether a long press or short press is detected compared to the reference time, and when long press is performed, a URL address is specified using a character code of “English characters” to connect to the Web. On the other hand, it is also possible to use a character code of “English characters” to connect to the search site and perform search processing when short-pressed.

  In the first embodiment, the simplification of the function call for the mail function has been described. However, the present invention is not limited to such a case, and the pressing time of the mail function key is a predetermined reference time. It may be configured to detect whether it is long press or short press compared to, and when long press, it can be configured to start the mail function by specifying the address using the character code of “English”, On the other hand, it may be configured such that the text creation screen of the mail function is activated using the character code of “Hiragana” when short-pressed.

  In the first embodiment, the simplification of the function call for the address book function has been described. However, the present invention is not limited to such a case, and the pressing time of the address book function key is predetermined. Configure to detect whether long press or short press compared to the reference time, and configure the address book function by specifying the name using the character code of "Hiragana" when long press On the other hand, the address book function may be activated by using a “numeric” character code when the key is short-pressed. In the present invention, the combination of each function key and the selected character code is not limited to the case shown in the first embodiment, and may be another appropriate combination.

  <Second Embodiment> FIG. 11 is a flowchart for explaining a second embodiment of the present invention. In the second embodiment, function processing is executed based on the selected character type in response to detection of pressing of the character type selection key. The flow chart shown in FIG. 11 is common to the basic steps shown in the flow chart shown in FIG. 7, and different reference numerals are added only to different steps.

  In step S200 shown in FIG. 11, the main control unit 121 determines whether or not the character type selection key 13a for selecting the character type has been pressed. That is, in the character type selection key 13a, a “Hiragana” mode for inputting hiragana and converting it into kanji, a “katakana” mode for inputting katakana, an “alphabetic” mode for inputting English characters, and numbers are input. For example, “Hiragana” → “Katakana” → “English” → “Number” → “Hiragana” is selected according to the number of times the character type selection key 13a is pressed. It is also possible to provide a character type output function for writing and outputting the current mode state as a character type to the work area of the RAM 121b. Then, after input from the character type selection key 13a, if there is no input from the character type selection key 13a for a predetermined time (for example, 2 seconds), it is assumed that the last selected character type is determined. If the character type selection key 13a is pressed, the process proceeds to step S210. If the character type selection key 13a is not pressed, the process returns to step S70 until the character input key or the character type selection key 13a is input. The determination process in step S70 and step S200 is repeated.

  If it is detected that the character type selection key 13a for selecting the character type has been pressed, a subroutine for executing function processing is executed in step S210.

  Moving to FIG. 12, in step S215, the main control unit 121 determines whether or not “Hiragana” character is selected as the character type by pressing the character type selection key 13a. If it is determined that “Hiragana” is selected based on the “character type” data read from the work area of the RAM 121b, the process proceeds to step S220. In step S220, the character code of the character type displayed on the screen corresponding to this character type is selected and read from the storage area of the RAM 121b and stored in the work area of the RAM 121b. When “Hiragana” is selected, it can be assumed that the mail text has been keyed in advance, so the storage area of “Hiragana code” provided in the RAM 121b is selected, and the character code is read from this storage area. Store in the work area of the RAM 121b.

  Next, in step S225, the main control unit 121 functions as a second execution unit of the present invention, and executes a mail function module to execute a mail function based on the character code of the selected character type. In this case, the input operation of the mail text by hiragana input can be continued.

  On the other hand, if the “Hiragana” character is not selected as the character type in step S215, the process proceeds to step S230, and the main control unit 121 determines whether the “katakana” character is selected as the character type. If it is determined that “katakana” is selected based on the “character type” data read from the work area of the RAM 121b, the process proceeds to step S235. In step S235, the character code of the character type displayed on the screen corresponding to this character type is selected and read from the storage area of the RAM 121b, and stored in the work area of the RAM 121b. When “Katakana” is selected, it is possible to assume that the name of the address book is entered in advance with the name of the address book as katakana. Therefore, the “Katakana code” storage area provided in the RAM 121b is selected, and from this storage area The character code is read and stored in the work area of the RAM 121b.

  Next, in step S240, an address book function module is executed to execute an address book function based on the character code of the selected character type. In this case, the address book can be searched based on a name input operation by katakana input.

  If the “Katakana” character is not selected as the character type in step S230, the process proceeds to step S245, and the main control unit 121 determines whether the “English character” character is selected as the character type by pressing the character type selection key 13a. Determine whether. If it is determined that “English character” is selected based on the “character type” data read from the work area of the RAM 121b, the process proceeds to step S250. In step S250, the character code of the character type displayed on the screen corresponding to this character type is selected and read from the storage area of the RAM 121b and stored in the work area of the RAM 121b. When “English” is selected, it can be assumed that the URL address of the website has been keyed in advance, so the storage area of “English code” provided in the RAM 121b is selected, and the character code is selected from this storage area. Read and store in the work area of the RAM 121b.

  Next, in step S255, in order to execute the Web function based on the character code of the selected character type, the Web function module is executed and the browser unit 111 is activated. In this case, the website can be browsed based on the input operation of the URL address by inputting English characters.

  If “alphabetic” characters are not selected as the character type in step S245, the process proceeds to step S260, and the main control unit 121 determines whether the “numeric” character is selected as the character type by pressing the character type selection key 13a. Determine whether. If it is determined that “number” is selected based on the “character type” data read from the work area of the RAM 121b, the process proceeds to step S265. In step S265, the character code of the character type displayed on the screen corresponding to this character type is selected and read from the storage area of the RAM 121b and stored in the work area of the RAM 121b. When “Numeric” is selected, it can be assumed that the telephone number has been previously key-inputted. Therefore, the “Numeric code” storage area provided in the RAM 121b is selected, the character code is read from this storage area, and the RAM 121b. Store in the work area.

  Next, in step S270, the telephone function module is executed to activate the telephone call unit 105 in order to execute the call function based on the character code of the selected character type. In this case, it is possible to make a call to the other party's phone based on the phone number corresponding to the number of the character code stored in the “numeric code” storage area.

  If “numeric” is not selected as the character type in step S260, the process proceeds to step S280, and the main control unit 121 performs an exception process because a character type other than the above is received, returns to the main routine, and ends the process. .

  As described above, in the second embodiment, when the cellular phone device 1 detects pressing of a character key from the standby screen, a plurality of characters assigned to the key (including characters, symbols, figures, etc.) are included. ) Are simultaneously displayed on the divided screens, it is possible to easily perform efficient input. Furthermore, when the character type key is pressed, the character code corresponding to the character type can be acquired from the character codes input in advance, so that the functional operation corresponding to the character type can be easily performed. In the present invention, the combination of the selected character type and the function to be executed is not limited to the example described in the second embodiment, and may be another appropriate combination.

  <Third Embodiment> FIG. 13 is a flowchart for explaining a third embodiment of the present invention. In the third embodiment, a function name is displayed for each small area provided on the screen for each character type, and an effective character type and function are selected at the same time according to the cursor movement of the decision operation key 15 to function. Execute the process. The flowchart shown in FIG. 13 is common to the basic steps shown in the flowchart shown in FIG. 7, and different reference numerals are added only to different steps.

  In step S <b> 7 shown in FIG. 13, the main control unit 121 reads out a character code indicating a different function name from the ROM 121 a and outputs it to the display control unit 117, whereby the main control unit 121 functions in the VRAM 119 connected to the display control unit 117. Stores a different character code indicating the name and completes the transfer. As a result, character character codes indicating different function names are stored in the respective storage areas of the VRAM 119.

  Here, the display control unit 117 reads the character character code from the VRAM 119 at a predetermined display rate, reads the character data corresponding to the character character code read from the VRAM 119 from the character generator ROM 117a, converts it into character data, and converts the character data. Generate data. The image data of different character types generated by the display control unit 117 is displayed on the display unit 21. As a result, as shown in FIG. 14, characters and functions for each character type are displayed in the display area 21a of the display unit 21, respectively.

  In step S300 shown in FIG. 13, the main control unit 121 functions as the third execution means of the present invention, and determines whether or not the determination operation key 15 for selecting a character type and a function corresponding to the character type has been pressed. to decide. If the determination operation key 15 is pressed, the process proceeds to step S310. If the determination operation key 15 is not pressed, the process returns to step S70, and step S70 is performed until the character input key or the determination operation key 15 is input. And the determination process in step S300 is repeated.

  When it is detected that the determination operation key 15 for selecting the character type and the function corresponding to the character type is pressed, a subroutine for executing the function processing shown in FIG. 15 is executed in step S310.

  Moving to FIG. 15, in step S <b> 313, the main control unit 121 performs color enhancement of the display area in accordance with the cursor movement. That is, based on the key data input from the input data acquisition unit 115, when the cursor of the determination operation key 15 is pressed, one of the display areas of the VRAM 119 managed by the display control unit 117 is color-emphasized. As a result, as shown in FIG. 14, for example, the display area 21 b in which “Hiragana” is displayed as “Sakana” and the corresponding function is displayed as “Mail” is displayed with more color emphasis than other areas. Is done. In FIG. 14, the display areas 21a, 21b, and 21c in the range indicated by the arrow 22 are effectively displayed on the display unit 21, but the display area and the highlight area that are being displayed according to the amount of movement of the cursor. Can be moved vertically. Further, the screen of the display area may be scrolled according to the amount of movement of the cursor, and for example, the display areas 21d, 21e,..., 21z may be sequentially displayed instead of the display areas 21a, 21b, 21c. In the example shown in FIG. 14, the number of display areas is 26 from the display area 21a to the display area 21z, but the present invention is not limited to 26 as the number of display areas. It may be.

  Next, in step S315, the main control unit 121 determines whether or not “mail” is selected as the color enhancement area when the cursor of the determination operation key 15 is pressed. That is, when the character code indicating “mail” can be read from the color emphasis area of the VRAM 119, the process proceeds to step S220, and the mail function module is executed by executing the processes of step S220 and step 225. In this case, the input operation of the mail text by hiragana input can be continued.

  Next, in step S330, the main control unit 121 determines whether or not “address book” is selected as the color enhancement area when the cursor of the determination operation key 15 is pressed. That is, when the character code indicating “address book” can be read from the color emphasis area of the VRAM 119, the process proceeds to step S235, and the address book function module is executed by executing the processing of step S235 and step 240. . In this case, the address book can be searched based on a name input operation by katakana input.

  Next, in step S345, the main control unit 121 determines whether or not “Web” is selected as the color enhancement area when the cursor of the determination operation key 15 is pressed. That is, when the character code indicating “Web” can be read from the color enhancement area of the VRAM 119, the process proceeds to step S250, and the processing of step S250 and step 255 is executed to execute the Web function module and the browser. The unit 111 is activated. In this case, the website can be browsed based on the input operation of the URL address by inputting English characters.

  Next, in step S360, the main control unit 121 determines whether or not “telephone” is selected as the color enhancement area when the cursor of the determination operation key 15 is pressed. That is, when the character code indicating “telephone” can be read from the color emphasis area of the VRAM 119, the process proceeds to step S265, and the telephone function module is executed by executing the processes of step S265 and step 270 to The transmission unit 105 is activated. In this case, it is possible to make a call to the other party's phone based on the phone number corresponding to the number of the character code stored in the “numeric code” storage area.

  In step S360, if the color emphasis area is not selected because the cursor of the determination operation key 15 is pressed, the process proceeds to step S380, and the main control unit 121 performs exception processing because a character type other than the above is received. Then, the process returns to the main routine and the process ends.

  As described above, in the third embodiment, when the cellular phone device 1 detects pressing of a character key from the standby screen, a plurality of characters assigned to the key (including characters, symbols, figures, etc.) are included. ) Are simultaneously displayed on the divided screens, it is possible to easily perform efficient input. Furthermore, when the cursor of the determination operation key 15 is pressed, the character code corresponding to the color emphasis area can be acquired from the character codes input in advance, so that the function operation corresponding to the character type can be easily performed. . In the present invention, the relationship between the function and the selected character type is not limited to the example shown in the third embodiment, and may be other appropriate combinations.

  <Fourth Embodiment> FIG. 16 is a flowchart for explaining a fourth embodiment of the present invention. In the fourth embodiment, a plurality of identical or different function software keys corresponding to one character type selected from a plurality of character types displayed on the screen are displayed, and then the selected function software is displayed. A desired function process is executed based on the key. Note that the flowchart shown in FIG. 16 is common to the basic steps in the flowchart shown in FIG. 7, and only different steps are denoted by different reference numerals. FIG. 19 is a diagram showing the contents of the function soft key table referred to by the main control unit 121.

  Here, the function soft key table 24 shown in FIG. 19 will be described. The function soft key table 24 is a function in which a plurality of different character types and, for example, three types of functions corresponding to the plurality of character types are associated with respective display positions and are distinguished and assigned as [A], [B], and [C]. The character code of the name is stored in the ROM 121a. When a character type is designated from the main control unit 121, the function soft key table 24 adds a display position to the character code indicating the function name of the function soft key corresponding to the designated character type and returns it to the main control unit 121. Fulfill.

  In step S403 shown in FIG. 16, the main control unit 121 displays an initial screen of function soft keys. That is, the main control unit 121 reads out a character code indicating a different function name related to, for example, the character type “numeric” from the function soft key table 24 stored in the ROM 121 a as shown in FIG. 19 and outputs this to the display control unit 117. As a result, a different character code indicating the function name is stored in the VRAM 119 connected to the display control unit 117, and the transfer is completed. As a result, character character codes indicating different function names are stored in the respective storage areas of the VRAM 119.

  Here, the display control unit 117 reads a character character code from the VRAM 119 at a predetermined display rate, reads character data corresponding to the character character code read from the VRAM 119 from the character generator ROM 117a, converts it into character data, and converts the image data into an image. Generate data. The image data of different character types generated by the display control unit 117 is displayed on the display unit 21. As a result, at the bottom of the display area 21 of the display unit 21, as shown in FIG. 18, the function soft key “memo” 23a and the function soft key are displayed at the bottom of the screen 21 as the initial screen of the function soft key for the character type “numeral”. A soft key “outgoing” 23b and a function soft key “mail” 23c are displayed.

  In step S473 shown in FIG. 16, the main control unit 121 presses the cursor of the determination operation key 15 functioning as the selection unit of the present invention in the vertical direction based on the key data input from the input data acquisition unit 115. In the case, it is determined whether or not there is a character type selection. If there is a character type selection, the selected “character type” data is stored in the work area of the RAM 121b, and the process proceeds to step S475. On the other hand, if there is no character type selection, the process returns to step S70.

  In step S473, when the cursor is moved in the vertical direction in order to select the character type displayed on the screen 21, the color of the display area is enhanced according to the cursor movement. That is, based on the key data input from the input data acquisition unit 115, when the cursor of the determination operation key 15 is pressed, one of the display areas of the VRAM 119 managed by the display control unit 117 is color-emphasized. As a result, as shown in FIG. 18, for example, the display area 21 a displayed as “325” in “number” characters and displayed as “325” is displayed with the color emphasized more than the other areas, and the cursor is displayed. The display area being displayed and the emphasis area can be moved in the vertical direction according to the amount of movement. Also, the function soft keys 23a, 23b, and 23c shown in FIG. 18 can move the highlighted area of the function soft key that is enabled according to the amount of movement of the cursor in the horizontal direction.

  Next, in step S475, the main control unit 121 functions as a second changing unit of the present invention, and changes the display of the function soft key according to the character type selected by color emphasis. That is, the main control unit 121 reads the character type data selected in step S473 from the work area of the RAM 121b, and changes the display contents of the function soft key according to the character type.

  Here, the main control unit 121 reads out the character code indicating the different function name and the display position from the function soft key table 24 (shown in FIG. 19) stored in the ROM 121a based on the selected character type, and displays this. By outputting to the control unit 117, a different character code indicating the function name is stored in the VRAM 119 connected to the display control unit 117, and the transfer is completed. As a result, character character codes indicating different function names are stored in the respective storage areas of the VRAM 119. Next, in the display area 21 of the display unit 21, for example, as a function soft key screen for the character type “Hiragana”, a function soft key “address book registration” 23 a, a function soft key “memo” 23 b, a function The soft key “Mail” 23c is updated and displayed.

  Next, in step S490, it is determined whether a function soft key on the screen has been selected. That is, the main control unit 121 determines whether or not the horizontal cursor of the determination operation key 15 has been pressed and the determination key has been pressed in order to select a function corresponding to the character type whose color is emphasized. If the determination key of the determination operation key 15 is pressed, the process proceeds to step S500. If the determination operation key 15 is not pressed, the process returns to step S70 until the determination key of the determination operation key 15 is input. The determination process in step S70, step S475, and step S490 is repeated.

  If it is detected that a function soft key has been selected in response to pressing of the enter operation key 15, in step S500, the main control unit 121 performs color emphasis on the display area of the function key selected in accordance with the cursor movement. I do. That is, based on the key data input from the input data acquisition unit 115, when the cursor of the determination operation key 15 is pressed, the function soft key display areas 23a, 23b of the VRAM 119 managed by the display control unit 117 are displayed. One of 23c is color-emphasized. Next, in step S500, a subroutine for executing function processing is executed.

  Moving to FIG. 17, in step S <b> 510, the main control unit 121 determines whether a “numeric” character is selected as the character type. If it is determined that “number” is selected based on the “character type” data read from the work area of the RAM 121b, the process proceeds to step S512. In step S512, the character code of the “numeric” character type displayed on the screen corresponding to this character type is selected and read from the storage area of the RAM 121b, and stored in the work area of the RAM 121b.

  Next, in step S514, the main control unit 121 functions as the third execution unit of the present invention, and determines whether or not the display position [A] indicating the display area 23a is selected according to the selection by the function soft key. To do. If the display position [A] is selected, the process proceeds to step S516, and the memo function module is executed. In this case, the input operation of the memo text by the numeric input can be continuously performed on the number selected as the character type.

  On the other hand, if the display position [A] is not selected in step S512, the process proceeds to step S518, and the main control unit 121 sets the display position [B] indicating the display area 23b according to the selection by the function soft key. It is determined whether or not it has been selected. If the display position [B] is selected, the process proceeds to step S522, and the telephone call function module is executed. In this case, the telephone call operation can be continuously performed by using the number selected as the character type as the telephone number.

  Furthermore, if the display position [B] is not selected in step S518, the process proceeds to step S524, and the main control unit 121 sets the display position [C] indicating the display area 23c according to the selection by the function soft key. It is determined whether or not it has been selected. If the display position [C] is selected, the process advances to step S528 to execute the mail function module. In this case, the mail text input operation can be continued using the number selected as the character type.

  If the main control unit 121 determines in step S510 that the “numeric” character is not selected as the character type, the process proceeds to step S530, where the main control unit 121 determines that the “Hiragana” character is selected as the character type. Judge whether or not. If it is determined that “Hiragana” is selected based on the “character type” data read from the work area of the RAM 121b, the process proceeds to step S532.

  In step S532, the character code of the “Hiragana” character type displayed on the screen corresponding to this character type is selected from the storage area of the RAM 121b, read out, and stored in the work area of the RAM 121b.

  Next, in step S534, the main control unit 121 determines whether or not the display position [A] indicating the display area 23a is selected according to the selection by the function soft key. If the display position [A] is selected, the process proceeds to step S536 to execute the address book registration function module. In this case, it is possible to continue the address book registration operation by inputting “Hiragana” for “Hiragana” selected as the character type.

  On the other hand, if the display position [A] is not selected in step S534, the process proceeds to step S538, and the main control unit 121 sets the display position [B] indicating the display area 23b according to the selection by the function soft key. It is determined whether or not it has been selected. If the display position [B] is selected, the process proceeds to step S542 to execute the memo function module. In this case, the input operation of the memo text by inputting “Hiragana” can be continuously performed on “Hiragana” selected as the character type.

  Furthermore, when the display position [B] is not selected in step S538, the process proceeds to step S544, and the main control unit 121 sets the display position [C] indicating the display area 23c according to the selection by the function soft key. It is determined whether or not it has been selected. If the display position [C] is selected, the process advances to step S548 to execute the mail function module. In this case, the input operation of the mail text can be continued using “Hiragana” selected as the character type.

  If the main control unit 121 determines in step S530 that the “Hiragana” character is not selected as the character type, the process proceeds to step S550, and the main control unit 121 determines whether the “English” character is selected as the character type. Judge whether or not. If it is determined that “English character” is selected based on the “character type” data read from the work area of the RAM 121b, the process proceeds to step S552.

  In step S552, the character code of the “English” character type displayed on the screen corresponding to this character type is selected from the storage area of the RAM 121b, read out, and stored in the work area of the RAM 121b.

  Next, in step S554, the main control unit 121 determines whether or not the display position [A] indicating the display area 23a is selected according to the selection by the function soft key. If the display position [A] is selected, the process proceeds to step S556, and the address book registration function module is executed. In this case, it is possible to continue the address book registration operation by inputting “English characters” for “English characters” selected as the character type.

  On the other hand, if the display position [A] is not selected in step S554, the process proceeds to step S558, and the main control unit 121 sets the display position [B] indicating the display area 23b according to the selection by the function soft key. It is determined whether or not it has been selected. If the display position [B] is selected, the process proceeds to step S562, and the mail function module is executed. In this case, it is possible to continuously perform the mail address input operation by inputting “English characters” for “English characters” selected as the character type.

  Furthermore, if the display position [B] is not selected in step S558, the process proceeds to step S564, and the main control unit 121 sets the display position [C] indicating the display area 23c according to the selection by the function soft key. It is determined whether or not it has been selected. If the display position [C] is selected, the process advances to step S568 to execute the Web function module. In this case, the input operation of the URL address to the browser can be continued using the “English character” selected as the character type.

  As described above, in the fourth embodiment, different function soft keys corresponding to one character type selected from a plurality of character types displayed on the screen are displayed on the standby screen of the mobile phone device 1. A plurality of displays are displayed, and then a desired function process is executed based on the selected function soft key. Therefore, efficient input can be easily performed. Further, when the determination key of the determination operation key 15 is pressed, the character code corresponding to the color emphasis area can be acquired from the previously input character codes, so that the function operation corresponding to the character type can be easily performed. it can.

  In addition to the effects of the first to fourth embodiments, it is possible to shorten the time required until the user performs the intended function. For example, even when a user visually recognizes the number of a car that runs away, the number of the car can be easily stored by using the portable terminal device adopting the character input method according to the present invention. In the present invention, the combination of the character type and the function soft key is not limited to the example shown in the fourth embodiment, and may be another appropriate combination.

  Other Embodiments In the first to fourth embodiments, the standby screen displayed on the display unit 21 is configured to display character characters by dividing the screen into, for example, three parts. Is not limited to such a case. For example, the display control unit 117 may be set so that the standby screen can be divided into two or more parts such as four or four. On the other hand, it is possible to improve the operability by enabling efficient character input and function execution.

  In the first to fourth embodiments, the standby screen displayed on the display unit 21 is configured to display characters corresponding to, for example, three types of characters by dividing into three. The present invention is not limited to such a case. For example, the character types that can be displayed on the standby screen are “Kakana”, “English characters”, and “Numerals” are not displayed. In addition, it is possible to improve the operability by enabling efficient character input and function execution on the divided screen. In this case, the main control unit 121 performs this setting and functions as a setting unit of the present invention.

  In the first to fourth embodiments, the function keys provided on the operation unit side body 2 are used. However, the present invention is not limited to such a case. A key that can be set to a function intended by the user may be provided on the case of the operation unit side body 2 or the display unit side body 3.

  In the first to fourth embodiments, the “English” displayed when the “Web” key is pressed to execute the function by selecting the sentence information related to the target function. The URL address is used to specify the URL address to connect to the Web. However, the present invention is not limited to such a case, and the “English character” character code is used to connect to the search site. Thus, the search process may be performed.

  In the first to fourth embodiments, the simplification of the function call for the mail function, the address book function, the Web function, and the telephone call function has been described. However, the present invention is limited to such a case. If the mobile terminal device has a “memo” key, the memo pad function may be called.

DESCRIPTION OF SYMBOLS 21 ... Display part, 101 ... Antenna part, 103 ... Telephone reception part, 105 ... Telephone transmission part, 107 ... Mail reception part, 109 ... Mail transmission part, 111 ... Browser part, 113 ... Input operation part, 115 ... Input data acquisition 117, display control unit, 117a ... character generator ROM, 119 ... VRAM, 121 ... main control unit, 121a ... ROM, 121b ... RAM, 121c ... CPU

Claims (3)

A display unit;
An operation unit including an input key to which characters of a plurality of input types including numbers are assigned, a call key for making a call, and an input type selection key for selecting the input type;
A control unit configured to display, on the display unit, characters of a plurality of input types assigned to the operated input key when the input key is operated while the standby screen is displayed on the display unit. ,
In the state where the characters of the plurality of input types are displayed on the display unit,
When the call key is operated, a screen for performing a phone call process using the displayed number is displayed on the display unit,
When the input type selection key is operated, by changing the character type that is selected for the character being displayed, it is displayed on the display unit as a character of the character type selected characters other character types have changed,
When an operation for activating a predetermined function is performed, a screen in which the predetermined function is activated is displayed on the display unit using a character of the selected character type that is displayed. The controller is
When the input key is operated while the standby screen is displayed on the display unit, a plurality of input type characters assigned to the operated input key, and a function corresponding to the input type character, Each is displayed on the display,
When changing the character type of the displayed character, the display of the function associated with the character of the displayed selected character type is changed, and the other function according to the selected character type is changed Display on the display,
The character input device according to claim 1. In a display control method for a character input device including at least a display unit,
When a character input operation is performed in a state in which the standby screen is displayed on the display unit, a first display that displays characters of a plurality of input types including numbers assigned to the character input operation on the display unit, respectively. Process,
A second display step of displaying a screen for performing a telephone call process using a displayed number when a call operation is performed in a state where the characters of the plurality of input types are displayed on the display unit When,
In a state where the character of the plurality of input type on the display unit is displayed, when the input type selection key is operated to change the character type that is selected for the character being displayed, a character of the character type that the change A third display step of displaying as a character of the selected character type ;
A display having a fourth display step of displaying, on the display unit, a screen in which the predetermined function is activated by using a character of the selected character type displayed when an operation for activating the predetermined function is performed; Control method.

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