JP5364690B2 - Portable electronic devices - Google Patents

Description

  The present invention relates to a portable electronic device having an operation unit, and more particularly to a portable electronic device in which a plurality of types of symbols are assigned to the same key.

  The portable electronic device includes a display unit that displays various types of information, and an operation unit that includes a plurality of keys.

Here, in a portable electronic device such as a cellular phone, an initial screen is displayed on the display unit when waiting for an incoming call or waiting for activation of another application. In this initial state, when an operation key to which a number is assigned is pressed, a number corresponding to the pressed operation key is displayed on the display unit. The mobile telephone device, in a state in which the numbers on the display unit is displayed, for example, when the off-hook key is depressed, performs outgoing call processing based on the number that is input, The computer (calculator ) Is started, the computer application is started with the input number as an initial value.

  In the portable electronic device, when a key operation is performed from the initial screen, characters corresponding to the key operation are displayed on the display unit, and a predetermined operation (an operation of pressing a key for displaying a list of applications) is executed. A technology is proposed in which a list of applications corresponding to the displayed character string is displayed, and the application is started by selecting one application from the list (for example, Patent Documents) 1).

JP 2007-200143 A

  By the way, in the initial screen state, when the user presses a key to which numbers and letters are assigned, it is not known in the initial stage of key operation which symbol the user is consciously operating. When the input of characters is prioritized as in the technique of Patent Document 1, the input of numbers is ignored. On the other hand, when the input of numbers is prioritized, the input of characters is ignored. The user's intention may not be reflected.

  In the present invention, when a key operation is performed while the initial screen is displayed, each of a plurality of symbols (for example, numbers and characters) assigned to the key is displayed in parallel on the display unit. A mobile phone that can reflect the user's intention while ensuring visibility by activating one symbol displayed by subsequent operations and erasing the screen displaying the other symbol An object is to provide electronic equipment.

In order to solve the above problems, a portable electronic device according to the present invention is assigned a display unit for displaying a first type symbol display region and a second type symbol display region, and a first type symbol and a second type symbol. A plurality of symbol keys, a first function key to which a first function is assigned without being assigned the first type symbol and the second type symbol, and the first type symbol and the second type symbol are assigned. A key operation unit including a second function key to which a second function is assigned, and when any of the symbol keys is pressed in a state where an initial screen is displayed on the display unit. The first type symbol assigned to the selected symbol key is displayed in the first type symbol display area, and the second type symbol assigned to the pressed first key is displayed in the second type symbol display area. And the system When the first function key is pressed while the first type symbol and the second type symbol are displayed on the display unit, the unit corresponds to the first type symbol according to the first function. When the processing is performed and the second function key is pressed, the second type symbol can be edited, the first type symbol is displayed and the first type symbol is prohibited from being edited, and the first type symbol is displayed . The function key and the second function key are arranged corresponding to the arrangement of the first type symbol display area and the second type symbol display area.

  In the portable electronic device, the display unit is divided into upper and lower parts, the first type symbol display area is displayed above, the second type symbol display area is displayed below, and the second function key is the second function key. A configuration arranged below one function key is also possible.

  In the portable electronic device, the controller may be configured to continue displaying the first type symbol and erase the second type symbol when the first function key is pressed.

In the portable electronic device, the control unit may emphasize the display of the second type symbol when the second function key is pressed.

  In the portable electronic device, when the first type key and the second type symbol are displayed on the display unit and the first function key is pressed, the control unit may The conversion candidate area for displaying the conversion candidate of the first type symbol may be displayed at the display position of the second type symbol display area where the two type symbols are displayed.

  In the portable electronic device, the first type symbol is a character, the second type symbol is a number, and the process executed by the first function is a process for editing the character. The process executed by the second function may be a process for making a telephone call based on the number.

  In the portable electronic device, the process executed by the first function may be a process for converting the character.

  In the portable electronic device, the control unit may display information on functions assigned to the first function key and the second function key on the display unit.

  ADVANTAGE OF THE INVENTION According to this invention, in a key operation from the state where the initial screen is displayed, a user's intention can be reflected, ensuring visibility.

1 is an external perspective view of a mobile phone device 1. FIG. 1 is a perspective view of a state in which a cellular phone device 1 is folded. 3 is a functional block diagram showing functions of the mobile phone device 1. FIG. It is a figure where it uses for description about a key assignment. It is a figure which uses for description about a mode that a display state changes from the initial screen to the divided screen by a 1st type symbol display area and a 2nd type symbol display area, and a display state changes to a 1st type symbol display area after that. It is a flowchart with which it uses for description about the method of the 1st operation | movement process by a control part. It is a flowchart with which it uses for description about the method of the 1st operation | movement process by a control part.

  Embodiments of the present invention will be described below. FIG. 1 is an external perspective view of a mobile phone device 1 which is an example of a mobile electronic device according to the present invention. 1 shows a form of a so-called foldable mobile phone device, the form of the mobile phone device according to the present invention is not particularly limited to this. For example, a sliding type in which one casing is slid in one direction from a state in which both casings are overlapped, or a rotary type in which one casing is rotated around an axis along the overlapping direction ( Turn type), or a type (straight type) in which the operation unit and the display unit are arranged in one housing and does not have a connecting unit.

  The mobile phone device 1 includes an operation unit side body unit 2 and a display unit side body unit 3. The operation unit side body unit 2 includes an operation unit 11 and a microphone 12 into which a voice uttered by a user of the mobile phone device 1 is input on the surface unit 10. The operation unit 11 includes a function setting operation key 13 for operating various functions such as various settings, a telephone book function, a mail function, and the like, and an input operation key 14 for inputting a telephone number and characters such as mail. , And a determination operation key 15 for performing determination and scrolling in various operations.

  Further, the display unit side body unit 3 includes, on the surface unit 20, an LCD (Liquid Crystal Display) display unit 21 for displaying various types of information, and a speaker 22 for outputting the voice of the other party of the call. It is configured.

  Further, 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. In addition, the cellular phone device 1 relatively rotates the operation unit side body 2 and the display unit side body 3 connected via the hinge mechanism 4, thereby The display unit side body 3 can be opened (opened) with each other, or the operation unit side 2 and the display unit 3 can be folded (folded).

  FIG. 2 is a perspective view of the cellular phone device 1 in a folded state. The operation unit side body unit 2 is provided with a sub LCD display unit 30 on the outer plane portion for displaying a clock, incoming mail, or the like.

  FIG. 3 is a functional block diagram showing functions of the mobile phone device 1. As shown in FIG. 3, the mobile phone device 1 includes an operation unit 11 (key operation unit), a microphone 12, a main antenna 40, an RF circuit unit 41, an LCD control unit 42, an audio processing unit 43, A memory 44 and a control unit 45 are provided in the operation unit side body 2, and an LCD display unit 21 (display unit), a speaker 22, a driver IC 23, and a sub LCD display unit 30 are included in the display unit side case. The body part 3 is provided.

  The main antenna 40 communicates with a base station or the like in a first use frequency band (for example, 800 MHz), and can support a second use frequency band (for example, 1.5 GHz) for GPS communication. It is. In the present embodiment, the first frequency band used is 800 MHz, but other frequency bands may be used. Further, the main antenna 40 may be separately provided with an antenna that communicates with an external device in the first use frequency band and can correspond to the second use frequency band for GPS communication.

  The RF circuit unit 41 demodulates the signal received by the main antenna 40 and supplies the processed signal to the control unit 45. Then, the signal supplied from the control unit 45 is modulated and transmitted to an external device (base station) via the main antenna 40. On the other hand, the control unit 45 is notified of the strength of the signal received by the main antenna 40.

  The LCD control unit 42 performs predetermined image processing according to the control of the control unit 45, and outputs the processed image data to the driver IC 23. The driver IC 23 stores the image data supplied from the LCD control unit 42 in the frame memory and outputs it to the LCD display unit 21 or the sub LCD display unit 30 at a predetermined timing.

  The sound processing unit 43 performs predetermined sound processing on the signal supplied from the RF circuit unit 41 under the control of the control unit 45, and outputs the processed signal to the speaker 22. The speaker 22 outputs the signal supplied from the sound processing unit 43 to the outside.

  In addition, the audio processing unit 43 processes the signal input from the microphone 12 according to the control of the control unit 45 and outputs the processed signal to the RF circuit unit 41. The RF circuit unit 41 performs a predetermined process on the signal supplied from the sound processing unit 43 and outputs the processed signal to the main antenna 40.

  The memory 44 includes, for example, a working memory and is used for arithmetic processing by the control unit 45. The memory 44 stores a plurality of applications and various tables necessary for the applications. The memory 44 may also serve as a removable external memory.

  The control unit 45 controls the entire mobile phone device 1 and is configured using a central processing unit (CPU) or the like. Here, the control operation of the control unit 45 according to the key operation by the operation unit 11 will be described. In principle, the control unit 45 assigns symbols and functions to each key (the function setting operation key 13, the input operation key 14, and the determination operation key 15) constituting the operation unit 11 in accordance with an application that is currently actively activated. To change.

  Specifically, when any key is pressed, the operation unit 11 displays the position information of the key (for example, as shown in FIG. 4A, the left column of the second row of the input operation key 14). When the key (the key with “1” and “a” printed on the front surface) is pressed, the position information (X2, Y1) is transmitted to the control unit 45. The control unit 45 accesses the memory 44, refers to the key assignment table corresponding to the currently active application, and processes the symbols and functions assigned from the position information transmitted from the operation unit 11. Run. For example, as shown in FIGS. 4B to 4D, the memory 44 stores a plurality of key assignment tables. 4B is a table used when making a call, FIG. 4C is a table used in a notepad application or a mail application, and FIG. It is a table used when changing a channel in a television application.

  The execution of the symbol processing means, for example, that “1” or “A” is displayed on the LCD display unit 21 when the currently active application is Notepad. The execution of the function processing means, for example, that the display channel is set to 1ch when the currently active application is a television.

  In this way, the memory 44 stores a plurality of key assignment tables, and the control unit 45 switches the key assignment table to be referenced according to the application, and positions of keys transmitted from the operation unit 11. A predetermined process is executed by referring to a predetermined key assignment table based on the information.

  In the mobile phone device 1 configured as described above, when a key operation is performed in the communication standby state which is an initial state, each of a plurality of symbols (for example, numbers and characters) assigned to the key is displayed. For example, it has a function of displaying in parallel on different screen areas and enabling a screen on which one symbol is displayed when a predetermined key operation is performed. Also, in the mobile phone device 1, when a screen on which one symbol is displayed when a predetermined key operation is performed, the key assignment assigned on the screen on which the other symbol is displayed It has a function to change.

Here, operation | movement of the control part 45 for exhibiting the function mentioned above is demonstrated. The operation unit 11 includes a first key (for example, a key located in the second to fifth lines of the input operation key 14 shown in FIG. 1C) and a second key (for example, a determination operation key). 15), the third key (for example, shown in FIG. 1 B, is configured to include an off hook key) and located in the left column top row of the input operation keys 14.

  The first key is a first type symbol (for example, hiragana such as “A”, “I”, “U”) and a second type symbol (for example, numbers such as “1”, “2”, “3”). And is composed of a plurality of assigned keys. The second key is a key to which a plurality of functions (for example, a function for converting kana into kanji) is assigned, without assigning the first kind symbol and the second kind symbol. The third key is a key to which a function different from the second key (for example, a function for making a call) is assigned, without assigning the first kind symbol and the second kind symbol.

  In a state where the initial screen 100 waiting for an incoming call is displayed on the LCD display unit 21 (FIG. 5A), the control unit 45, when any one of the first keys is pressed, The first type symbol (for example, “Hi”, “I”, “U”, etc.) assigned to, and the second type symbol (for example, “1”) assigned to the pressed first key. , “2”, “3” and the like) are displayed on the LCD display unit 21 (FIG. 5B). Specifically, the control unit 45 displays the first type symbol in the first type symbol display area 101 and displays the second type symbol in the second type symbol display area 102 instead of the initial screen 100. Control.

  Further, when the control unit 45 is controlling to display the first type symbol display area 101 and the second type symbol display area 102 on the LCD display unit 21, when the second key is pressed, A first process (for example, a process of converting kana into kanji) for the first type symbol is executed. Further, the control unit 45 suppresses the display of the second type symbol. Here, the suppression is, for example, controlling to erase the second type symbol display area 102 from the LCD display unit 21 or visually highlighting the first type symbol more than the second type symbol, In addition, processing for the second type symbol (editing processing) is prohibited, and control is performed so that only processing for the first type symbol (editing processing) is possible.

  Further, when the control unit 45 is controlling to display the first type symbol display area 101 and the second type symbol display area 102 on the LCD display unit 21, when the third key is pressed, A second process (for example, a process related to a telephone call) for the second type symbol input to the second type symbol display area 102 is executed. Further, the control unit 45 suppresses display of the first type symbol. Here, the suppression is, for example, controlling to delete the first type symbol display area 101 from the LCD display unit 21 or visually highlighting the second type symbol more than the first type symbol, In addition, processing for the first type symbol (editing processing) is prohibited, and control is performed so that only processing for the second type symbol (editing processing) is possible.

  With this configuration, the cellular phone device 1 displays the first type symbol display area 101 and the second type symbol display area 102 when a key operation is performed in the communication standby state. Since it is controlled, both the first type symbol and the second type symbol can be easily input. Furthermore, the cellular phone device 1 selects either the first type symbol display area 101 or the second type symbol display area 102 by pressing a specific key (second key or third key), A predetermined process (first process or second process) is executed, and the first type symbol display area 101 or the second type symbol display area 102 that has not been selected is erased from the display screen of the LCD display unit 21. Therefore, the user's operation for erasing an unnecessary display area is unnecessary, and the user's intention can be reflected while ensuring visibility.

  The control unit 45 controls the second key (for example, the up / down key (characters of the determination operation key 15) when the first type symbol and the second type symbol are controlled to be displayed on the LCD display unit 21. When the conversion key)) is pressed, the first process for the first type symbol is executed. Further, the control unit 45 suppresses the display of the second type symbol. Here, the suppression is, for example, controlling to erase the second type symbol display area 102 from the LCD display unit 21 or visually highlighting the first type symbol more than the second type symbol, In addition, processing (editing processing) for the second type symbol is prohibited, and control is performed so that only processing (editing processing) for the first type symbol is possible.

  In addition, the control unit 45 relates the function assigned to the third key (for example, the function of making a telephone call based on the number displayed in the second type symbol display area 102) to the first type symbol. The function is changed to a function for executing the third processing (for example, a function for enlarging or reducing characters displayed in the first type symbol display area 101).

  Specifically, the control unit 45 performs the third operation when the key operation is performed from the communication standby state and the first type symbol display area 101 and the second type symbol display area 102 are displayed on the LCD display unit 21. When the key is pressed, the telephone call processing is executed based on the number displayed in the second type symbol display area 102 (see FIGS. 5B and 5C), and the second type symbol is displayed. When the third key is pressed after the display area 102 is erased from the LCD display unit 21, the character displayed in the first type symbol display area 101 is enlarged or reduced (FIG. 5D). See).

In this way, the control unit 45, a key operation is performed from the communication standby state, after any symbol has been input, depending on whether the selection operation key 15 is depressed, the third key (off hook key) On the other hand, since control for assigning different functions is performed, the use efficiency of the keys can be improved without increasing the number of keys in the cellular phone device 1 having a small number of keys.

Further, the control unit 45 performs control so that the first type symbol display area 101 and the second type symbol display area 102 are displayed on the LCD display unit 21. Thereafter, when the second key (for example, the up / down key (character conversion key) of the determination operation key 15) is pressed, the control unit 45 selects the first type symbol input to the first type symbol display area 101. Process 1 is executed. At this time, when the control unit 45 suppresses the display of the second type symbol and the third key is pressed, what kind of processing is performed on the input first type symbol? Is controlled. Here, the suppression is, for example, controlling to erase the second type symbol display area 102 from the LCD display unit 21 or visually highlighting the first type symbol more than the second type symbol, In addition, the process (editing process) for the second type symbol is prohibited (inactive), and only the process (editing process) for the first type symbol is controlled (active). Further, the notification control means, for example, as shown in the middle C FIG. 5 (d), the by pressing the off hook key, a fact that allows enlargement or reduction of the characters displayed on the first type symbol display region 101 is that the control for notifying while showing an image printed on the surface of the off-hook key.

  With this configuration, the cellular phone device 1 performs any processing when the third key is pressed after the second type symbol display area 102 is erased from the LCD display unit 21. Since it is notified whether it is performed, the convenience in operation can be improved.

  The function assigned to the second key is to edit the symbol related to the first type symbol (displayed in the first type symbol display area 101) (convert the character by pressing the up and down keys, The input character is confirmed by pressing the key, and the cursor is moved by pressing the left and right keys). In the first process, when the second key is pressed, a specific symbol is selected from the symbol conversion candidates related to the first type symbol (displayed in the first type symbol display area 101). This is a process for confirming. The function assigned to the third key is a function for making a call based on a symbol related to the second type symbol (displayed in the second type symbol display area 102). Further, the second process is a process for transmitting a symbol related to the second type symbol (displayed in the second type symbol display area 102) as a telephone number when the third key is pressed. .

  Here, in the example shown in FIG. 5, when key operations (keys with “0” and “waon” printed on the surface) are performed on the initial screen (FIG. 5A), “Wa” is displayed in the first type symbol display area 101 where the first type symbol is displayed, and simultaneously “0” is displayed in the second type symbol display area 102 where the second type symbol is displayed (see FIG. 5 (b)). Then, a plurality of key operations are continuously performed, “WATANABE” is displayed in the first type symbol display area 101, and “0456666 *” is displayed in the second type symbol display area 102 (FIG. 5). (C)).

Further, when the determination operation key 15 is operated up and down while the display screen is in the state shown in FIGS. 5B and 5C, the control unit 45 executes a process of converting kana into kanji. Also, the first type symbol display area 101 is displayed over the entire display screen (FIG. 5D). The control unit 45, in the state of FIG. 5 (d), the left column top of the input operation keys 14 keys (so-called off-hook key) when is pressed, such as expanding the character being displayed Processing is performed (FIG. 5E).

Further, when the display screen is in the state such as FIG. 5 (b) and FIG. 5 (c), the left column top of the key of the input operation keys 14 (off hook key) is depressed, the control unit 45, the Based on the number string displayed in the two-type symbol display area 102, the telephone call processing is performed.

In this way, the control unit 45, a key operation is performed from the communication standby state, after any symbol has been input, depending on whether the selection operation key 15 is pressed, against the off hook key, different Since the function assignment control is performed, the use efficiency of each key can be improved in the mobile phone device 1 having a small number of keys.

  Here, in the cellular phone device 1, when the key of the operation unit 11 having “5” and “NA” printed on the front surface is pressed once, as the conversion candidates in the first type symbol display area 101, Displaying “5, na, na”, etc., but judging that the input information is narrowed down to the information required by the user at an early stage, rather than continuing to treat the display of the conversion candidate as valid information forever (keep it active) In other words, it is preferable to make a determination to narrow down whether the display screen consciously input by the user is the first type symbol display area 101 or the second type symbol display area 102. Thereby, it is more preferable to erase the display area that the user has not consciously input and to remove the processing burden given to the control unit 45 at an early stage.

The mobile phone device 1 is, for example,
1. When a conversion operation (up and down pressing of the second key (decision operation key 15)) is performed,
2. When the input character string is left-fed and right-fed (second key (decision operation key 15 left and right pressed)),
3. When the input character type is switched during input, it is determined that the display screen that the user is consciously inputting is the first type symbol display area 101. Also, the second type symbol display area 102 is erased.

  The operation procedure of the control unit 45 that sets the state of the display screen and reflects the setting will be described in detail with reference to the flowchart shown in FIG. In the following description, it is assumed that any key constituting the operation unit 11 is input.

  In step S1, the control unit 45 determines whether or not the first key of the operation unit 11 (the key located on the second to fifth lines of the input operation key 14 shown in C in FIG. 1) has been pressed. to decide. If it is determined that the first key is pressed (Yes), the process proceeds to step S2, and if it is determined that the first key is not pressed (No), the process proceeds to step S5.

  In step S2, the control unit 45 determines whether or not the input is the first character. If it is determined that the input is the first character (Yes), the process proceeds to step S3. If it is determined that the input is not the first character (No), the process proceeds to step S4.

  In step S <b> 3, the control unit 45 performs a setting for setting the display screen to a two-screen display of the first-type symbol display area 101 and the second-type symbol display area 102 (setting for two-screen display).

  In step S4, the control unit 45 sets the display screen to be maintained in the same state as the previous screen.

  In step S5, the control unit 45 determines whether or not a conversion operation (up and down pressing of the second key (decision operation key 15)) has been performed. If it is determined that the conversion operation has been performed (Yes), the process proceeds to step S8. If it is determined that the conversion operation has not been performed (No), the process proceeds to step S6.

  In step S <b> 6, the control unit 45 determines whether or not an operation of left-feed or right-feed (pressing the second key (pressing the left and right of the determination operation key 15)) is performed on the input character string. . If it is determined that the left feed or right feed operation has been performed (Yes), the process proceeds to step S8. If it is determined that the left feed or right feed operation has not been performed (No), the process proceeds to step S7. move on.

  In step S7, the control unit 45 determines whether or not the function setting operation key 13 has been pressed and the type of input character (kanji / hiragana, katakana, alphanumeric, etc.) has been switched. If it is determined that the input character type has been switched (Yes), the process proceeds to step S8. If it is determined that the input character type has not been switched (No), the process proceeds to step S9.

  In step S <b> 8, the control unit 45 performs setting for setting the display screen to a single screen display of only the first type symbol display area 101 (setting for single screen display).

  In step S9, the control unit 45 sets the display screen to be maintained in the same state as the previous screen.

  In step S10, the control unit 45 sets the display screen to the one-screen display setting by the setting in the step S3, the setting in the step S4, the setting in the step S8, or the setting in the step S9. Judge whether there is. When the setting state of the display screen is one screen setting (Yes), the process proceeds to step S11, and when the setting state of the display screen is not one screen setting (No), the process proceeds to step S12.

  In step S <b> 11, the control unit 45 performs control so that display according to the input key is performed in one screen display of the first type symbol display area 101.

  In step S <b> 12, the control unit 45 performs control so that display according to the input key is performed in two-screen display of the first type symbol display area 101 and the second type symbol display area 102.

  Further, the procedure of each process described above is an example and is not limited to this. In particular, in steps S5 to S7, it is determined whether or not a conversion operation has been performed as shown in FIG. 7 (step S21). When the conversion operation is performed (Yes), it is next determined whether or not to confirm with the converted character (step S22). When confirming with the converted character (Yes), The process proceeds to step S8, and if the conversion operation is not performed in step S21 (No) or if the converted character is not confirmed in step S22 (No), the process proceeds to step S8. It may be replaced by the procedure of proceeding to step S9.

  With this configuration, when the key operation is performed in the communication standby state, the mobile phone device 1 displays the first type symbol display area 101 and the second type symbol according to the key operation. Control is performed so that the area 102 is displayed, and the display screen that is consciously input by the user according to the key input of the operation unit 11 thereafter is the first type symbol display area 101 or the second type symbol display area 102. The display screen that is not consciously input by the user is deleted and only the display screen that is consciously input by the user is displayed, so that the visibility on the LCD display unit 21 is improved. In addition, the burden on the control unit 45 can be reduced.

  In addition, when a character string is input to the first type symbol display area 101 and the second type symbol display area 102, the first type symbol display area is determined until it is determined which display screen is effective. 101 and the second type symbol display area 102 had to continue to update all candidate data, but the mobile phone device 1 executes the determination method as described above, so that the effective display screen Therefore, the visibility on the LCD display unit 21 can be improved, and the burden on the control unit 45 can be reduced.

  Note that the key assignment method shown in FIG. 4 is an example and is not limited to this method.

1 Mobile phone device 11 Operation unit (key operation unit)
21 LCD display (display)
44 Memory 45 Control unit 100 Initial screen 101 Type 1 symbol display area 102 Type 2 symbol display area

Claims (8)

A display unit for displaying a first type symbol display region and a second type symbol display region;
A plurality of symbol keys to which a first type symbol and a second type symbol are assigned, a first function key to which a first function is assigned without being assigned the first type symbol and the second type symbol, and the first A key operation unit including a seed symbol and a second function key to which a second function is assigned without being assigned a seed symbol and the second species symbol;
When one of the symbol keys is pressed in a state where the initial screen is displayed on the display unit, the first type symbol assigned to the pressed symbol key is displayed in the first type symbol display area. And a control unit for displaying the second type symbol assigned to the pressed first key in the second type symbol display area,
The control unit is in a state where the first type symbol and the second type symbol are displayed on the display unit,
When the first function key is pressed, the first type symbol is processed according to the first function,
When the second function key is pressed, the editing of the second type symbol is enabled, the editing of the first type symbol is prohibited while displaying the first type symbol,
The portable electronic device, wherein the first function key and the second function key are arranged corresponding to the arrangement of the first type symbol display area and the second type symbol display area. The display unit is divided into upper and lower parts, and displays the first type symbol display area above and the second type symbol display area below.
The portable electronic device according to claim 1, wherein the second function key is disposed below the first function key. 3. The control unit according to claim 1, wherein when the first function key is pressed, the control unit continues to display the first type symbol and deletes the display of the second type symbol. 4. Portable electronic devices. The portable electronic device according to any one of claims 1 to 3, wherein the control unit highlights the display of the second type symbol when the second function key is pressed. When the first type key and the second type symbol are displayed on the display unit and the first function key is pressed, the control unit displays the second type symbol before the press. 4. The portable electronic device according to claim 3, wherein a conversion candidate area for displaying the conversion candidate of the first type symbol is displayed at a display position of the second type symbol display area. The first type symbol is a character, the second type symbol is a number,
The process executed by the first function is a process for editing the character, and the process executed by the second function is a process for making a call based on the number. The portable electronic device according to any one of claims 1 to 5, wherein The portable electronic device according to claim 6, wherein the process executed by the first function is a process for converting the character. 8. The portable electronic device according to claim 1, wherein the control unit causes the display unit to display information related to a function assigned to the first function key and the second function key. 9. machine.

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