JP5595846B2 - Electronic device and character display method - Google Patents

Description

  The present invention relates to an electronic device having a character input function and a character display method.

  Some electronic devices (character input devices) capable of inputting characters include an input unit that inputs a character string and a display unit that displays conversion candidates for the input character string. Patent Document 1 describes an electronic device that stores a character conversion table in advance and displays a conversion candidate of an input character string on a display unit with reference to the character conversion table.

JP 2002-366289 A

  Here, as a character input method using an electronic device, there is a method of associating a plurality of characters with a numeric keypad and determining a character based on the number of times the key is pressed. For example, if a number “1” key is associated with a plurality of characters in a line, “A” is input when the “1” key is pressed once, and “YES” is input when the key is pressed twice in succession. It is a method to do.

  Here, for example, when inputting a combination of numbers and characters, the electronic device needs to switch an input mode or input a reading of a combination of numbers and characters. In other words, in order to input “3 times”, after inputting “3” in the mode for inputting numbers, “Kai” is input in the mode for inputting kana characters, or in the mode for inputting kana characters. "Sankai". For this reason, switching of the input mode and the number of character inputs increase, and the operation becomes troublesome.

  The present invention has been made in view of the above, and an object of the present invention is to provide an electronic device and a character display method capable of inputting characters with a simpler operation.

  In order to solve the above-described problems and achieve the object, the present invention is an electronic device, which includes a display unit and an operation unit including a plurality of operation keys to which numbers and characters are assigned to one operation key. A control unit that causes the display unit to display a character assigned to the operated operation key as an input character when the operation key is operated, and the control unit operates the operation key. When an input character including a first character and a second character is input, if it is determined that at least a part of the second character among the input characters is a character representing a unit, the first character A combination of a number assigned to an operation key operated when inputting the character and the second character is displayed on the display unit.

  Here, in the case where the control unit displays different characters on the display unit as input characters according to the number of times one of the operation keys is continuously operated, at least a part of the second character If it is determined that is a character representing a unit, it is preferable that a number of numbers corresponding to the number of consecutive operation keys operated when inputting the first character is displayed on the display.

  Moreover, it is preferable that the said control part displays on the said display part instead of the said 1st character the number allocated to the operation key operated when inputting the said 1st character.

  The display unit displays a conversion candidate for the character together with the input character, and the control unit displays the number assigned to the operation key operated when inputting the first character and the second It is preferable to display the combination with the character on the display unit as the conversion candidate.

  In addition, when the control unit determines that at least a part of the second character is a character representing a unit, the control unit converts the second character into a kanji or a symbol corresponding to the unit and displays the character. Is preferred.

  Moreover, when the operation key is operated in a state where the standby screen is displayed on the display unit, the recording control unit preferably displays characters and numbers assigned to the operation key.

  Moreover, it is preferable that the said control part judges whether it is a character which represents a unit by making a back character into the said 2nd character among the input characters.

  Moreover, it is preferable that the said control part makes the character which is not settled after input by operation of the said operation key the said 1st character and the said 2nd character.

  In order to solve the above-described problems and achieve the object, the present invention is a character display method, which is input to an operation unit including a plurality of operation keys in which numerals and characters are assigned to one operation key. A character display method for displaying a character on a display unit based on an operated operation, wherein when the operation key is operated, a character assigned to the operated operation key is input and a second character is input. A character display step of displaying as an input character including the character, a determination step of determining whether at least a part of the detected second character is a character representing a unit after the input character is displayed, and a second step When at least a part of the characters is a character representing a unit, a combination of a number assigned to the operation key operated when inputting the first character and the second character is displayed in the table. And having a display step of displaying the part.

  The electronic device and the character display method according to the present invention have an effect that a combination of numbers and characters can be input with a simpler operation.

FIG. 1 is a front view showing the external appearance of the mobile terminal device of the present invention. FIG. 2 is a block diagram showing a schematic configuration of functions of the mobile terminal device shown in FIG. FIG. 3 is a flowchart illustrating an example of processing operation of the mobile terminal device. FIG. 4 is an explanatory diagram for explaining the operation of the mobile terminal device. FIG. 5 is an explanatory diagram for explaining the operation of the mobile terminal device.

  Hereinafter, the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following description. In addition, constituent elements in the following description include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range. In the following, a mobile phone terminal will be described as an example of an electronic device. However, the application target of the present invention is not limited to a mobile phone terminal, and various devices including an input unit, for example, a PHS (Personal Handy-phone System) ), PDA (Personal Digital Assistant), portable navigation device, personal computer, game machine, and the like.

  FIG. 1 is a front view showing the external appearance of the mobile terminal device of the present invention. The mobile terminal device 1 is a mobile phone having a wireless communication function. The mobile terminal device 1 is a foldable mobile phone in which a housing 1C is configured to be opened and closed by a first housing 1CA and a second housing 1CB. FIG. 1 shows a state where the mobile terminal device 1 is opened.

  The first housing 1CA is provided with a main display 2M shown in FIG. 1 as a display unit. The main display 2M displays, as a predetermined image, a standby screen when the mobile terminal device 1 is waiting for reception, or a menu screen used to assist the operation of the mobile terminal device 1. Or As shown in FIG. 1, the first housing 1CA is provided with a receiver 6 that emits a voice when the mobile terminal device 1 is talking.

  The second casing 1CB is provided with a plurality of operation keys 3 composed of a plurality of keys including a numeric keypad 3a for inputting a telephone number of a call partner or letters or numbers when creating a mail. In addition, the second casing 1CB is provided with a direction and determination key 4 for easily executing selection and determination of a menu displayed on the main display 2M, scrolling of the screen, and the like. The operation key 3 and the direction / decision key 4 constitute an operation unit 28 (see FIG. 2) of the mobile terminal device 1. In addition, the second housing 1CB is provided with a microphone 5 that receives voice when the mobile terminal device 1 is in a call.

  The first housing 1CA and the second housing 1CB are connected by a hinge 18. As a result, the first housing 1CA and the second housing 1CB are configured to rotate together around the hinge 18 so as to rotate away from each other and toward each other. When the first housing 1CA and the second housing 1CB rotate in a direction away from each other, the mobile terminal device 1 opens, and when the first housing 1CA and the second housing 1CB rotate in a direction approaching each other, the mobile terminal. The device 1 is closed.

  Next, the relationship between the function of the mobile terminal device 1 and the control unit will be described. FIG. 2 is a block diagram showing a schematic configuration of functions of the mobile terminal device shown in FIG. As shown in FIG. 2, the mobile terminal device 1 includes a main control unit 22, a storage unit 24, a communication unit 26, an operation unit 28, an input data acquisition unit 29, an audio processing unit 30, and a display unit 32. And a display control unit 33.

  The main control unit 22 is a processing unit that controls the overall operation of the mobile terminal device 1, for example, a CPU (Central Processing Unit). That is, the communication unit 26, the display unit, and the like are executed by appropriate procedures according to the operation of the operation unit 28 and the software stored in the storage unit 24 of the mobile terminal device 1. 32 and the like are controlled. The main control unit 22 executes processing based on programs (for example, operating system programs, application programs, etc.) stored in the storage unit 24. The main control unit 22 performs a character input process using a character input application (immediately a character application). The character input process by the main control unit 22 will be described later.

  The storage unit 24 stores software and data used for processing in the main control unit 22. Specifically, application software that performs character input processing, application software that transmits and receives mail, dictionary data used to extract conversion candidates in character conversion, and the like are stored. The storage unit 24 stores correspondence between letters and numbers assigned to each of the plurality of operation keys 3.

  The communication unit 26 establishes a radio signal line by a CDMA system or the like with a base station via a channel assigned by the base station, and performs telephone communication and information communication with the base station.

  The operation unit 28 includes, for example, an operation key 3 to which various functions such as a power key, a call key, a numeric key, a character key, a direction key, a determination key, and a call key are assigned, and a direction and determination key 4. When these keys are input by a user operation, a signal corresponding to the operation content is generated. The numeric keypad 3a constituting the operation key 3 is composed of twelve keys, and each key has a function of both a numeric key and a character key. When the numeric keypad 3a is depressed, a signal corresponding to the depression is generated. Each key constituting the numeric keypad 3a is assigned an input of 1 to 9, 0, *, or # in a mode for inputting a number (that is, when a function as a number key is executed). In addition, in the key input mode (that is, when the function of the character key is executed), the input of characters from one line to the next is input to each key assigned with the numbers 1 to 9 constituting the numeric keypad 3a. The keys to which the number 0 is assigned are assigned inputs of “wa”, “wo”, and “n”. In addition, input of various symbols such as a cloud point, a semi-cloudy point, a long sound, and a punctuation mark is assigned to a key to which * is assigned or a key to which # is assigned. The generated signal is input to the input data acquisition unit 29 as a user instruction.

  The input data acquisition unit 29 generates a control signal based on the signal generated from the operation unit 28 and the input setting, and inputs the generated control signal to the main control unit 22. The input setting is stored in the storage unit 24.

  In the mode for inputting characters, the input data acquisition unit 29 extracts one character from the characters assigned to each key based on the number of times each key of the numeric keypad 3a is operated, and as input character information. Output to the main control unit 22. Here, a predetermined arrangement order is set for the characters allocated to these keys. Specifically, the “1 a” key to which “A” and “1” are assigned is “A”, “I”, “U”, “E”, “O”, “A”, “I”, “ The arrangement order of “ぅ”, “e”, “ぉ” is set. The order of arrangement is toggled. That is, the characters assigned to the keys are set so as to circulate, and “ぉ” follows “ぉ”, and then the above arrangement order is repeated.

  Further, the input data acquisition unit 29 and the main control unit 22 detect pressing of the numeric keypad 3a, and determine a character to be displayed (selected) among characters in the arrangement order based on the number of pressings. When the same numeric keypad 3a is continuously pressed, that is, when the same numeric keypad 3a as the previous one (more precisely, one key in the numeric keypad 3a) is pressed, the input data acquisition unit 29 determines the number of times the keypad 3a has been pressed. Based on the sequence order, a character (input candidate character) to be displayed is selected. That is, the input data acquisition unit 29 updates the information of the character that is determined to have been input immediately before, and inputs a control signal to the main control unit 22 that sets the next character in the order as the input character. Further, the input data acquisition unit 29 and the main control unit 22 are configured so that when a different numeric keypad 3a is pressed, that is, a numeric keypad 3a different from the numeric keypad 3a pressed immediately before (to be precise, one key in the numeric keypad 3a). ) Is pressed, it is determined that the character corresponding to the numeric keypad 3a pressed immediately before is determined, and the first character in the order of arrangement of the pressed numeric keys 3a is displayed. That is, the input data acquisition unit 29 and the main control unit 22 determine the character corresponding to the ten key 3a pressed immediately before when the ten key 3a different from the ten key 3a pressed immediately before is pressed. Start typing. As will be described later, the input character is subsequently converted, and the conversion is completed and finalized as the input character.

  Further, in the mode of inputting numbers, the input data acquisition unit 29 performs main control on the numbers assigned to the keys as number information (numeric character information) based on the operation of each key of the numeric keypad 3a. To the unit 22. For example, when the key “1” is pressed, “1” is determined as the input character and a control signal is input to the main control unit 22. When the key “1” is continuously pressed twice, a control signal that determines that “1” has been input is input to the main control unit 22 twice. That is, it is determined that “11” is input.

  The input data acquisition unit 29 determines the operation of each key of the numeric keypad 3a as both the mode for inputting characters and the mode for inputting numbers, and generates character information and number information for the same operation. Then, it can also be output to the main control unit 22.

  Further, the input data acquisition unit 29 temporarily stores information on the input characters (characters whose input has been detected) in the storage unit 24. That is, an input history input by the operator to the operation unit 28 and detected by the input data acquisition unit 29 is stored in the storage unit 24. Note that some functions of the storage unit 24 may be shared with the input data acquisition unit 29 and stored in the input data acquisition unit 29.

  The audio processing unit 30 executes processing of an audio signal input to the microphone 5 and an audio signal output from the receiver 6.

  The display unit 32 includes a display panel (such as the above-described main display 2M) configured by a liquid crystal display (LCD, Liquid Crystal Display), an organic EL (Organic Electro-Luminescence) panel, and the like, and performs display control from the main control unit 22. A video corresponding to the video data supplied via the unit 33 and an image corresponding to the image data are displayed on the display panel.

  In this embodiment, the main control unit 22, the input data acquisition unit 29, the voice processing unit 30, and the display control unit 33 are provided separately. However, the mobile terminal device may be provided with these units integrally. Also, the arithmetic processing unit may be shared, and each function may be executed as an application.

  Next, operations of the mobile terminal device 1, operations input to the operation unit 28, and processing in the main control unit 22 will be described. Here, FIG. 3 is a flowchart showing an example of the processing operation of the mobile terminal device. The flowchart shown in FIG. 3 is a flowchart showing an example of processing when the operation key 3 is pressed while the standby screen is displayed. Here, the standby screen is a screen waiting for an incoming / outgoing call or a screen waiting for an application program to start. In other words, the standby screen is a screen before the screen is changed to various function screens provided by the mobile terminal device 1. Note that the standby screen may be called, for example, a desktop screen, a home screen, or wallpaper. In addition, when the numeric keypad 3a is operated while the standby screen is displayed, the main control unit 22 according to the present embodiment detects both the case where the numeric keypad 3a operation is determined as character input and the case where it is determined as numeric input. Then, a character input application for displaying the detected character is started. That is, a character input application that executes both a mode for inputting numbers and a mode for inputting characters is executed in parallel. The processing shown in FIG. 3 is basically executed by the main control unit 22 processing the operation of each unit. In addition, the correspondence between numbers and characters input by operating the numeric keypad 3a is stored in the storage unit 24 in advance.

  First, the main control unit 22 of the mobile terminal device 1 displays a standby screen as step S12. Thereafter, the main control unit 22 determines whether the numeric keypad 3a has been pressed as step S14. That is, the main control unit 22 determines whether the operation of the numeric keypad 3a by the user is detected by the numeric keypad 3a and the input data acquisition unit 29. If the main control unit 22 determines in step S14 that the numeric keypad 3a has not been pressed while the standby screen is displayed (No), that is, if the operation unit 28 and the input data acquisition unit 29 have not detected an operation, step S14 is performed. Proceed to S14. That is, the main control unit 22 repeatedly determines whether the numeric keypad 3a is pressed when the standby screen is displayed.

  If the main control unit 22 determines in step S14 that the numeric keypad 3a is pressed while the standby screen is displayed (Yes), that is, if the operation unit 28 and the input data acquisition unit 29 detect an operation, In S16, the character input application is activated.

  After starting the character input application in step S16, the main control unit 22 displays characters corresponding to the character input screen on the display unit 32 in step S18. Here, the character input screen is a screen on which an input character (that is, a detection result when the operation of the operation unit 28 is detected as a character input) is displayed. That is, the main control unit 22 displays on the character input screen the characters input by the user operating the numeric keypad 3a.

  Thereafter, the main control unit 22 causes the display unit 32 to display a numerical value corresponding to the numerical value input screen as step S20. Here, the numerical value input screen is a screen that displays an input number (that is, a detection result when the operation of the operation unit 28 is detected as a number input). That is, the main control unit 22 displays the numerical value input by the user's operation of the numeric keypad 3a on the numerical value input screen. By performing the processing of step S18 and step S20, both the detection result when the operation of the numeric keypad 3a is detected as a character input and the detection result when it is detected as a numerical value input are displayed on the display unit 32. .

  After displaying the numerical value corresponding to the numerical value input screen in step S20, the main control unit 22 extracts the rear n characters as step S22. That is, the main control unit 22 extracts characters for n characters from the end of the detection result obtained by detecting the input as the character input. Here, n characters is the number of characters determined by the setting. In addition, n characters to be extracted may be extracted for each of a plurality of characters, that is, n is 1, 2 is 3, and 3 is used. Further, the character to be extracted is a character for which conversion is not determined.

  After performing extraction in step S22, the main control unit 22 determines whether there is an extracted character in step S24. If the main control unit 22 determines in step S24 that there is no extracted character (No), the main control unit 22 proceeds to step S34. If the main control unit 22 determines in step S24 that there is an extracted character (Yes), it determines in step S26 whether the extracted character can be unit-converted. That is, it is determined whether the extracted character is a character (character, character string) representing a unit.

  If the main control unit 22 determines in step S26 that the extracted character is not changeable in units (No), the main control unit 22 proceeds to step S34. If it is determined in step S26 that the extracted character can be converted into a unit (Yes), the main control unit 22 converts the input before the unit into a numerical value in step S28. That is, the main control unit 22 inputs a character (first character) input before the character (second character) determined to be convertible into a unit (that is, for inputting the character). Of the numeric keypad 3a). The first character and the second character may be one character or a plurality of characters.

  After converting the character into the corresponding numerical value in step S28, the main control unit 22 creates a numerical value + unit conversion candidate in step S30. That is, the main control unit 22 combines the character (second character) extracted in step S26 into a unit and the converted character, and the numerical value obtained by converting the first character in accordance with numeric input in step S28. Thus, a conversion candidate combining a numerical value and a unit is created.

  After creating the conversion candidate in step S30, the main control unit 22 displays the numerical value + unit conversion candidate in the conversion candidate box in step S32. Here, the conversion candidate box is a display area for displaying conversion candidates based on inputted characters.

  The main control unit 22 displays the general conversion candidate in the conversion candidate box as step S34 when the process of step S32 is performed or when it is determined No in step S24 and step S26. Here, the general conversion candidate is a conversion candidate created from a character (character string) detected by determining that the operation of the numeric keypad 3a is a character input operation. Note that the general conversion candidates also include predictive conversion candidates created by converting a character string obtained by complementing a part of the detected characters. Further, a plurality of general conversion candidates may be created or one. When the main control unit 22 creates a general conversion candidate based on a character string created by detecting an operation on the numeric keypad 3a as a character input mode, the main control unit 22 displays the candidate on the conversion box.

  After displaying the general conversion candidate in the conversion box in step S34, the main control unit 22 determines whether the conversion candidate is selected in step S36. That is, the main control unit 22 determines whether the conversion candidate displayed in the conversion candidate box is selected and determined as the conversion of the input character. Note that the determination operation can be assigned with pressing of the direction and the determination key 4 and the conversion candidate selection operation can be assigned with pressing of the direction and the determination key 4.

  If it is determined in step S36 that no conversion candidate is selected (No), the main control unit 22 detects whether the numeric keypad 3a is pressed as step S38. Here, the main control unit 22 determines that no conversion candidate is selected when a predetermined time elapses in a state where the conversion candidate is not selected (the determination key is not pressed) in step S36 or the pressing of the numeric keypad 3a is detected. .

  If it is determined in step S38 that the numeric key has been pressed (Yes) and there has been an operation for character input or numeric input, the main control unit 22 proceeds to step S18, and then repeats the above-described processing. If the main controller 22 determines in step S38 that the numeric keypad 3a has not been pressed (No), that is, there is no new input, the process proceeds to step S36. In this way, the main control unit 22 repeats the processes of step S36 and step S38 until a selection candidate is selected or the numeric keypad 3a is pressed.

  When determining that the conversion candidate is selected (Yes) in step S36, the main control unit 22 determines the conversion candidate as an input character in step S40. That is, the selected character string is confirmed as the input character, and is excluded from the candidates for creating conversion candidates. Thereafter, the main control unit 22 ends the process.

  The main control unit 22 can input text by continuing character input and repeating the processing from step S18 to step S40 even after a conversion candidate is selected and confirmed as an input character. Further, when the process of step S40 is executed, the main control unit 22 determines that the input is not a numerical value but a character input, and displays only the character input screen and the conversion candidate box without displaying the numerical value input screen. You may do it. Furthermore, if the main control unit 22 determines that the user is inputting numbers during input detection, the main control unit 22 may end the processing shown in FIG. 3 and display only the numerical value input screen.

  Next, the processing of FIG. 3 will be described in more detail with reference to FIGS. 4 and 5. Here, FIG.4 and FIG.5 is explanatory drawing for demonstrating operation | movement of a portable terminal device. The explanatory diagram shown in FIG. 4 is an input example when inputting “three times”, and the explanatory diagram shown in FIG. 5 is an input example when inputting “331”.

  First, the main control unit 22 causes the input data acquisition unit 29 to display a standby screen as shown in the screen 60 of FIG. 4 on the main display 2M of the display unit 32, and specifically, the numeric keypad 3a. It is detected that the key to which the input “3” of the numeric keypad 3a is assigned (hereinafter referred to as “the key“ 3 ”. Similarly,“ the input is assigned ”is also omitted for other keys”) is detected. When the main control unit 22 detects the depression of the numeric keypad 3a, when the character input application is executed, the main control unit 22 displays the screen 60a shown in FIG. 4 on the main display 2M of the display unit 32. Here, the screen 60a displays a character input screen 62 that displays the input characters (that is, a detection result when the operation of the operation unit 28 is detected as character input), and conversion candidates based on the input characters. A conversion candidate box (conversion candidate display screen) 64 to be displayed, and a numerical value input screen 66 for displaying an input number (a detection result when the operation of the operation unit 28 is detected as a number input). Here, since the key “3” is pressed on the screen 60a in FIG. 4, “sa”, which is a character that is determined to be input by pressing the key “3”, is displayed on the character input screen 62. Is done. The conversion candidate box 64 displays three general conversion candidates “30 minutes”, “creation”, and “Sakai” as conversion candidates created based on the input character “sa”. Further, the numerical value input screen 66 displays “3”, which is a number that is determined to have been input by pressing the “3” key.

  Thereafter, when the user sequentially presses the “2” key and the “1” key of the numeric keypad 3 a, the main control unit 22 displays the screen 60 b shown in FIG. 4 on the main display 2 M of the display unit 32. In the screen 60b of FIG. 4, since the “2” key and the “1” key are sequentially pressed, the character input screen 62 is input by pressing the “2” key and the “1” key. Characters to be judged “ka” and “a” are displayed after “sa”. That is, “Sakaa” is displayed on the character input screen 62. Also, in the conversion candidate box 64, three conversion candidates of “Difference”, “Sakaa”, and “Sakaa” are displayed as general conversion candidates created based on the input character “Sakaa”. Further, on the numerical value input screen 66, the number “21” determined to be input by sequentially pressing the “2” key and the “1” key is added after “3” and “321” is displayed.

  Thereafter, when the user presses the “1” key of the numeric keypad 3 a, the main control unit 22 displays the screen 60 c shown in FIG. 4 on the main display 2 M of the display unit 32. Since the “1” key is pressed on the screen 60c of FIG. 4, “I”, which is a character that is determined to be input by pressing the “1” key, is changed to “A” on the character input screen 62. It is displayed instead. Also, in the conversion candidate box 64, three conversion candidates “Sakai”, “「 ”, and“ Sakai ”are displayed as general conversion candidates created based on the input character“ Sakai ”. Furthermore, the last two characters constituting “Sakai” can be converted into “times” which is the unit of times and “floor” which is the unit of floors. As a result, the character “sa” is converted to a numerical value “3”, and “3 times” and “3rd floor”, which are combined units, are displayed in the conversion candidate box 64 as numerical value + unit conversion candidates. On the numerical value input screen 66, a number “1” determined to be input by sequentially pressing the “1” key is added after “321” and “3211” is displayed.

  As described above, the mobile terminal device 1 extracts the character behind the character input in the character input mode as the second character, sets the character preceding the extracted character as the first character, If the character can be converted into a unit, the input of the first character is converted into a number when input in the number input mode, and a conversion candidate combining the number and the unit is created. As a result, even if it is desired to input “3 times”, it is possible to input “3 times” by simply inputting the corresponding numerical value without inputting “30000211” on the numeric keypad 3a. . Further, it is not necessary to input “3” in the number input mode and input “kai” in the character input mode to convert it to “times”. Thereby, the character string which a user desires can be input by simpler operation.

  In the above embodiment, the portion to be converted into a numerical value, that is, the first character is one character “3” or “sa”, but the present invention is not limited to this. Here, FIG. 5 is an example in the case of inputting “331”. In the example shown in FIG. 5, when the user first presses the keys “3”, “1”, “1”, “2”, “2”, “2”, and “2” on the numeric keypad 3a, the main control unit 22 displays 5 is displayed on the main display 2M of the unit 32. In the screen 70 a of FIG. 5, the character input screen 72 displays “saike” which is a character determined to be input by pressing a key. Also, in the conversion candidate box 74, three conversion candidates of “credit”, “reconstruction”, and “voting” are displayed as general conversion candidates created based on the input character “Saike”. The numerical value input screen 76 displays a number “311222” that is determined to be input by sequentially pressing keys.

  Thereafter, when the user presses the “2” key on the numeric keypad 3 a, the main control unit 22 displays the screen 70 b shown in FIG. 5 on the main display 2 M of the display unit 32. Since the “2” key is pressed on the screen 70 b in FIG. 5, “K”, which is a character that is determined to be input by pressing the “2” key, is displayed on the character input screen 72. It is displayed instead. The conversion candidate box 74 displays two conversion candidates “oldest” and “west lake” as general conversion candidates created based on the input character “saiko”. In addition, “ko”, which is the last character constituting “saiko”, can be converted into “unit”, which is the unit of the number, and “door”, which is the unit of the number of units. As a result, the character “sai” is converted to a numerical value “311”, and “311” and “311 units”, which are combined units, are displayed in the conversion candidate box 74 as numerical value + unit conversion candidates. On the numerical value input screen 76, a number “2” that is determined to be input by sequentially pressing the “2” key is added after “3112222” and “31122222” is displayed.

  In this manner, the first character can be a character that can be converted into a numerical value having a plurality of digits. Thereby, in the above case, the numerical value “311” can be input without inputting “sanbikujuichi” or “sanichiichi” as characters. As described above, when a combination of numerical values and units of a plurality of digits is input, a more remarkable effect can be obtained.

  The units are not limited to units that can be converted into kanji such as “times”, “pieces”, “yen”, “hours”, “minutes”, and various units can be targeted. For example, katakana such as meters (m), kilograms (kg, kilos), dollars, and units converted by alphabets can be targeted.

  For example, when “250 km” is desired to be input, “2502299999” can be used for conversion. Specifically, the input character is “Kanakawaro”, “Kiro” is recognized as a unit, and “Kanakawa” is converted to “250”. Also in this case, since it is not necessary to input “Nyakugojyukuro”, the number of operations of the operation unit 28 can be reduced. In addition, since it is not necessary to switch the input mode from the numeric input mode to the character input mode, the input is simplified. Further, the unit may be converted to “kg” instead of “kilo”. Moreover, you may convert a unit into a symbol.

  Here, in the above-described embodiment, a character (unit) in which at least a part of the second character is extracted as a second character is extracted from the input characters (input characters) as the second character. However, the present invention is not limited to this. The mobile terminal device 1 extracts, from the input characters, the front character as the second character, the back character not included in the second character as the first character, and converts the second character into units. It may be determined whether it is possible. For example, when the numeric keypad 3a is pressed in the order of “4444 * 9993” and “Dorusa” is input as the input character, “Dor” in front of the input character is extracted as the second character, and “Dor” is selected. Convert to the currency unit “dollar ($)”, convert “sa” behind “dol” to “3” when entered as a numerical value, and convert it to “$” as a conversion candidate (and / or character to be displayed) 3 "may be generated. In this way, in addition to or instead of the input character, the front is also extracted as a candidate for the second character, so that the unit and the numerical value combination can be easily input even in the case of the notation that the unit is displayed in front. It becomes possible. Here, the mobile terminal device 1 may perform processing separately or in parallel even if the processing of extracting the rear of the input character as the second character and the processing of extracting the front of the input character as the second character are performed together. May be. Moreover, it is good also as changeable by setting whether only one of the front and back is extracted, or both are extracted.

  In the present embodiment, the main control unit 22 repeatedly determines whether the numeric keypad 3a is operated when the standby screen is displayed. However, the present invention is not limited to this, and from the numeric keypad 3a and the input data acquisition unit 29, When a signal indicating the operation of the numeric keypad 3a is acquired, the character input application may be activated.

  In the present embodiment, when the character input application is started, both the character input screen and the numerical value input screen are displayed. However, only the character input screen may be displayed. Note that when both the character input and numeric input are executed in parallel by operating the numeric keypad 3a when the standby screen is displayed as in the character input application, the character input and the numeric input are supported. It may take time to switch whether the input is kana characters, katakana or numbers, or it may be necessary to provide a key for assigning the switching. On the other hand, since the mobile terminal device 1 does not need to switch modes, a combination of numbers and units can be input with a simple operation.

  Further, although the present embodiment has been described as the processing performed when executing the character input application that is activated when the operation of the numeric keypad 3a is detected when the standby screen is displayed, the present invention is not limited to this. The same processing may be performed when the text input screen is activated by the mail creation function. In other words, it is not limited to the case where the input operation is detected by both character input and numeric input, and both detection results are displayed, but the above-described processing is performed when the detection result as character input is displayed. May be performed. In other words, when it is determined that there is a character (character string) that can be converted into a unit in the rear part (second character) of the input character even when kana character input is set during text input, A part before the character (first character) may be converted into a numerical value input and displayed as a combination of a numerical value and a unit.

  Moreover, in the said embodiment, although the combination of the numerical value and the unit was displayed as a conversion candidate, it is not limited to this. For example, the first character of the character string displayed on the character input screen may be automatically converted into a numerical value.

  In the above embodiment, the numeric keypad 3a is used as a key for inputting characters and numbers (numerical values). However, the present invention is not limited to this. As the operation unit, various operation units including operation keys in which both numbers and letters are assigned to one key can be used. Also, the configuration of the operation keys is not limited to a physical key that detects pressing. For example, the operation unit may be a touch panel, and an operation on an operation key displayed on the touch panel may be detected.

  As described above, the electronic apparatus and the character display method according to the present invention are useful for use in a device having a character input function and a method for displaying input characters.

DESCRIPTION OF SYMBOLS 1 Portable terminal device 1C housing | casing 1CA 1st housing | casing 1CB 2nd housing | casing 2M main display 3 Operation key 4 Direction and determination key 5 Microphone 6 Receiver 18 Hinge 22 Main control part (CPU)
24 Memory (memory)
26 Communication Unit 28 Operation Unit 29 Input Data Acquisition Unit 30 Audio Processing Unit 32 Display Unit 33 Display Control Unit

Claims (9)

A display unit;
An operation unit having a plurality of operation keys to which numbers and letters are assigned to one operation key;
A control unit that causes a character assigned to the operated operation key to be displayed on the display unit as an input character when the operation key is operated;
When the operation key is operated and an input character string including a first character and a second character is input, at least a part of the second character in the input character string is a unit. When it is determined that the character represents a combination of a number assigned to the operation key operated when the first character is input and the second character, the display unit displays the combination. Electronics.   When the control unit displays different characters on the display unit as input characters according to the number of times one of the operation keys is continuously operated, at least a part of the second character is a unit. The number of numbers corresponding to the number of times the operation key operated when the first character is input is displayed on the display when it is determined that the character is a representation character. 1. The electronic device according to 1.   3. The control unit according to claim 1, wherein a number assigned to an operation key operated when inputting the first character is displayed on the display unit instead of the first character. 4. The electronic device described. The display unit displays conversion candidates for the character along with the input character,
The control unit causes the display unit to display a combination of a number assigned to an operation key operated when inputting the first character and the second character as the conversion candidate. Item 4. The electronic device according to any one of Items 1 to 3.   When the control unit determines that at least part of the second character is a character representing a unit, the control unit converts the second character into a kanji or a symbol corresponding to the unit and displays the converted character. The electronic device according to any one of claims 1 to 4.   6. The control unit according to claim 1, wherein when the operation key is operated in a state where a standby screen is displayed on the display unit, the control unit displays characters and numbers assigned to the operation key. Item 1. An electronic device according to item 1.   7. The control unit according to claim 1, wherein the control unit determines whether or not the input character is a character representing a unit with a backward character as the second character. 8. Electronic equipment.   8. The control unit according to claim 1, wherein the control unit sets, as the first character and the second character, characters that are not determined after being input by operating the operation keys. 9. Electronics. A character display method for displaying characters on a display unit based on an operation input to an operation unit including a plurality of operation keys assigned numbers and characters to one operation key,
When the operation key is operated, a character display step of displaying a character assigned to the operated operation key as an input character string including the input first character and second character;
A determination step of determining whether at least a part of the detected second character is a character representing a unit after displaying the input character string ;
When it is determined whether at least a part of the second character is a character representing a unit, a combination of a number assigned to the operation key operated when inputting the first character and the second character is And a display step for displaying on the display unit.

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