JP5187022B2 - Information processing device - Google Patents

Description

  The present invention relates to an information processing apparatus, and more particularly to an information processing apparatus that performs conversion processing on an input character string.

  Character conversion processing typified by kana-kanji conversion is widely used not only in word processors and personal computers but also in information processing apparatuses including cellular phones. In this information processing apparatus, it is desired to efficiently create a desired phrase or phrase with fewer key operations.

  In order to efficiently perform an input operation, the information processing apparatus is provided with a prediction dictionary registered in association with a short character string. Based on the input short character string, the information processing apparatus searches the prediction dictionary for words and phrases corresponding to the input character string, and displays the search results as a list of input prediction candidates. Thus, the user can efficiently create a document by selecting a desired phrase or phrase from the input prediction candidates displayed in a list after inputting a short character string. This method is effective in that it can be converted into a desired phrase or the like with a small number of key operations, particularly when a phrase including a plurality of phrases is created.

  Conventionally, a character input device that displays a list of candidates that are more likely to be selected by narrowing down candidates having a co-occurrence relationship among input prediction candidates for an input character string is known ( For example, see Patent Document 1).

In addition, a Japanese language processing apparatus is known that displays a list of prediction candidates predicted to be converted for an input character string by considering co-occurrence information and user usage frequency (for example, Patent Document 2). reference).
JP 2000-57135 A JP 2007-164278 A

  The character input device disclosed in Patent Literature 1 can efficiently perform a selection operation by narrowing down input prediction candidates based on a co-occurrence relationship. However, since the input prediction candidate consisting of a plurality of phrases has a large number of characters, it is very burdensome to perform a conversion operation by key operation after the user visually selects a desired conversion result from the candidates displayed in a list. It was.

  In addition, the character input device disclosed in Patent Document 2 is efficient when inputting the same words and phrases as the previous input. However, when creating a document rich in variations, there is a problem that there are many opportunities for performing a selection operation.

  The present invention has been made in consideration of such circumstances, and an object thereof is to provide an information processing apparatus that can reduce a selection operation for a user.

  Another object of the information processing apparatus according to the present invention is to display conversion candidates based on an inputted character string with good operability.

  In order to solve the above-described problem, an information processing apparatus according to the present invention includes an input unit that receives an input of a character string that represents reading of a phrase, a display unit, and a phrase that is input to the character string that is received by the input unit. It is determined whether or not there is a delimiter, and if there is a delimitation of the clause, the character string before the delimiter is a character string representing a forward phrase, and the character string after the delimiter is a backward phrase. A phrase delimiter that obtains as a character string that represents, a co-occurrence information storage means in which a pair of phrases having a co-occurrence relationship are stored in association with a character string representing a reading, and the phrase delimiter acquired by the phrase delimiter Co-occurrence information search means for searching a co-occurrence conversion candidate consisting of a pair of phrases having a co-occurrence relationship associated with a character string representing a forward phrase and a backward phrase from the co-occurrence information storage means; and the co-occurrence information Search by search means As co-occurrence transform candidates, characterized by comprising a display control means for a phrase that corresponds to the front clause the individual clauses corresponding rearward clause, and is displayed on the display unit in association.

  The information processing apparatus according to the present invention reduces the selection operation for the user. Also, conversion candidates based on the input character string are displayed with good operability.

  An embodiment of an information processing apparatus according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram showing an external configuration of a foldable mobile phone which is an example of an information processing apparatus according to the present invention. 1A shows the configuration of the external appearance of the mobile phone 1 viewed from the front when the mobile phone 1 is opened at about 180 degrees, and FIG. 1B shows the mobile phone 1 in the open state. The structure of the external appearance seen from the side is shown.

  As shown in FIGS. 1A and 1B, the mobile phone 1 includes a first casing 12 and a second casing 13 that are hinge-coupled with a central hinge portion 11 as a boundary. It is formed so as to be foldable in the direction of the arrow X via the part 11. A transmitting / receiving antenna is provided at a predetermined position inside the mobile phone 1, and radio waves are transmitted / received to / from a base station (not shown) via the built-in antenna.

  An operation key 14 is provided on the surface of the first housing 12. The operation key 14 includes a cross key 15, a confirmation key 16, character input keys 18 a to 18 j (character input key 18), and a soft key 19. On the top of the first housing 12, a cross key 15 and a confirmation key 16 are provided. The cross key 15 is provided with four keys in the up / down / left / right directions, and the cursor displayed on the main display 20 can be moved in the up / down / left / right directions by operating in the up / down / left / right directions. Specifically, the cursor position on the character input screen displayed on the main display 20 provided in the second casing 13, the scrolling operation of the phone book list and e-mail, the page turning operation of the simple homepage, and the image sending operation Various operations such as are executed.

  Various functions can be confirmed by pressing the confirmation key 16. For example, in the first housing 12, a desired phone number is selected from a plurality of phone numbers in the phone book list displayed on the main display 20 in response to an operation of the cross key 15 by the user, and the confirmation key is the first key. When the key is pressed in the inner direction of the case 12, the selected telephone number is confirmed and the calling process is performed on the telephone number. The processing displayed on the confirmation key function display unit 20a provided at the lower part of the main display 20 is also assigned to the confirmation key.

  Soft keys 19 are provided in the left and right direction of the cross key 15. The soft key 19 is also assigned a process displayed on the soft key function display unit 20 b displayed on the main display 20.

  A character input key 18 is provided below the cross key 15. Character input keys 18 are assigned character inputs such as numerals “0” to “9”, Japanese syllabary, symbols such as “,” and “.”. The character input key 18a is assigned a character input such as the number “0” or the Japanese syllabary “wa line”. The character input key 18b is assigned a character input such as a number “1” or a Japanese syllabary “A line”. In addition, the character input key 18c is assigned character input such as the numeral “2” or the Japanese syllabary “ka line”. Note that the character input keys 18d to 18j are also assigned to each of the 50-syllable lines and alphanumeric character inputs similarly expressed.

  The first casing 12 is provided with a side key 21 for operating the mobile phone 1. The side key 21 is assigned a predetermined process that is executed when the mobile phone 1 is pressed toward the inside of the first housing 12 when the mobile phone 1 is in the open state and the closed state.

  The first casing 12 is provided with a microphone 22 below the operation keys 14, and the microphone 22 collects the user's voice during a call.

  The first casing 12 has a battery pack (not shown) inserted on the back side, and when the end call / power key is turned on, power is supplied from the battery pack to each circuit unit. Start in a possible state.

  On the other hand, the second housing 13 is provided with a main display 20 on the front surface thereof. The main display 20 is an LCD (Liquid Crystal Display), an organic EL display (ElectroLuminescence Display), an inorganic EL display (inorganic electroLuminescence Display), a SED (Surface-Condition Electron), etc.

  On the main display 20, in addition to the reception status of the radio wave, the remaining battery level, the destination name and telephone number registered as a telephone directory, the transmission history, etc., the contents of the e-mail, a simple homepage, an external content server (not shown) )) The received content etc. is displayed. In addition, a confirmation key function display unit 20a and a soft key function display unit 20b are provided at the lower part of the main display 20, and display predetermined processes assigned to the confirmation key 16 and the soft key 19 according to the activated application. To do.

  A receiver (receiver) 23 is provided at a predetermined position on the upper part of the main display 20 so that the user can make a voice call. Note that a speaker (not shown) as an audio output unit other than the receiver 23 is also provided at a predetermined position of the mobile phone 1.

  FIG. 2 is a diagram showing another external configuration of a foldable mobile phone which is an example of the mobile phone according to the present invention. The mobile phone 1 in FIG. 2 is in a closed state rotated from the state of the mobile phone 1 in FIG. 2A shows an external configuration viewed from the front when the mobile phone 1 is in a closed state, and FIG. 2B shows the configuration viewed from the side when the mobile phone 1 is in a closed state. The structure of the appearance is shown.

  The second housing 13 is provided with a sub-display 24 constituted by, for example, an LCD, an antenna picture showing the current antenna sensitivity level, a battery picture showing the current battery level of the mobile phone 1, The current time is displayed.

  FIG. 3 is a diagram illustrating an internal configuration of the mobile phone according to the present embodiment. In the mobile phone 1, a main control unit 30, a power supply circuit unit 31, an input control unit 32, a display control unit 33, a storage unit 34, a voice control unit 35, a communication control unit 36, and a character conversion processing unit 39 communicate with each other via a bus. It is connected and configured.

  The main control unit 30 includes a CPU (Central Processing Unit). The CPU comprehensively controls the mobile phone 1 by generating various control signals and supplying them to each unit. The CPU performs, for example, an input control process for an input received from the operation key 14 or the like, and various other arithmetic processes and control processes.

  The power supply circuit unit 31 switches the power ON / OFF state based on, for example, an input received from the operation key 14 by the user, and supplies power to each unit from a power supply source (battery or the like) when the power is on. Thus, the mobile phone 1 is made operable.

  The input control unit 32 includes an input interface for the operation keys 14 and the side keys 21. When detecting that the operation key 14 or the side key 21 is pressed, the input control unit 32 generates a signal indicating the pressed operation key 14 or the side key 21 and transmits the signal to the main control unit 30.

  The display control unit 33 includes a display interface for the main display 20 and the sub display 24, and displays display information including documents and images on the main display 20 and the sub display 24 based on the control of the main control unit 30.

  The storage unit 34 is used when a processing program of the processing performed by the main control unit 30 and a ROM (Read Only Memory) that stores data necessary for the processing, a hard disk, a nonvolatile memory, and the main control unit 30 perform processing. RAM (Random Access Memory) that temporarily stores data to be stored. The storage unit 34 stores various applications such as an e-mail function executed by the CPU of the main control unit 30 and various data groups.

  The sound control unit 35 generates an analog sound signal from the sound collected by the microphone 22 based on the control of the main control unit 30, and converts the analog sound signal into a digital sound signal. In addition, when acquiring the digital audio signal, the audio control unit 35 converts the digital audio signal into an analog audio signal based on the control of the main control unit 30, and outputs the analog audio signal as audio from the receiver 23.

  Based on the control of the main control unit 30, the communication control unit 36 performs spectrum despreading processing on the received signal received from the base station (not shown) via the antenna 38 to restore the data. This data is transmitted to the voice control unit 35 and output from the receiver 23 according to an instruction from the main control unit 30, transmitted to the display control unit 33 and displayed on the main display 20, or recorded in the storage unit 34. Or In addition, the communication control unit 36 acquires voice data collected by the microphone 22, data input via the operation keys 14, and data stored in the storage unit 34 based on the control of the main control unit 30. These data are subjected to spread spectrum processing and transmitted to the base station via the antenna 38.

  In the present embodiment, the character conversion processing unit 39 performs character conversion processing on the character string input via the operation key 14.

  FIG. 4 is a block diagram schematically illustrating a functional configuration of each unit that executes character conversion processing in the mobile phone according to the present embodiment.

  The character conversion processing unit 39 includes a phrase segmentation unit 51, a co-occurrence information search unit 52, and a prediction candidate creation unit 53.

  The phrase delimiter 51 functions as a phrase delimiter and determines whether or not there is a phrase delimiter in the character string received by the character string input unit 61. The phrase delimiter 51 acquires a character string before the delimiter as a character string representing a forward phrase and a character string after the delimiter as a character string representing a backward phrase when the phrase is delimited. In the present embodiment, the phrase delimiter 51 determines whether or not there is a phrase delimiter by determining whether or not a prediction candidate has been generated by the prediction candidate generator 53 for the input character string. To do. When the prediction candidate creation unit 53 does not create a prediction candidate, the phrase segmentation unit 51 regards the input character string as a character string that does not exist as one phrase. In this case, the phrase delimiter 51 regards the character input immediately before the last input character string as a phrase delimiter, and acquires character strings representing the forward phrase and the backward phrase, respectively. The phrase delimiter 51 may determine the delimitation of the phrase not only by this method but also by other methods.

  The co-occurrence information storage unit 54 functions as a co-occurrence information storage unit, and stores a pair of phrases having a co-occurrence relationship in association with a character string representing reading. The co-occurrence information storage unit 54 also stores information on the strength of co-occurrence relationships between a pair of phrases.

  The co-occurrence information search unit 52 functions as a co-occurrence information search unit and co-occurs a pair of clauses having a co-occurrence relationship associated with a character string representing a forward phrase and a backward phrase acquired by the phrase delimiter 51. A search is performed from the information storage unit 54. The co-occurrence information search unit 52 performs a search together with information related to the strength of the co-occurrence relationship between the pair of searched phrases. The co-occurrence information search unit 52 supplies the search result to the display control unit 33 as a co-occurrence conversion candidate.

  The prediction candidate storage unit 55 functions as a prediction candidate storage unit and stores word candidates predicted from the character string input from the character string input unit 61 in association with the character string as prediction candidates. The prediction candidate storage unit 55 stores phrases as prediction candidates in phrase units. The prediction candidate storage unit 55 stores, as prediction candidates, words or phrases that have been selected as defaults because they are generally used frequently or words that have been acquired as a result of learning.

  The prediction candidate creation unit 53 functions as a prediction candidate creation unit, receives input from the character string input unit 61, and based on the character string supplied from the input control unit 32, Are searched for word candidates that are predicted to be converted, and the search results are created as prediction candidates. The created prediction candidate is supplied to the display control unit 33. The phrase predicted to be converted is a phrase composed of an input character string, a character string that may be input subsequent to the input character string, and a character string that matches. When the character string is acquired as a character string representing each of the forward phrase and the backward sentence by the phrase delimiter 51, the prediction candidate creating unit 53 searches for a candidate for a phrase predicted from each character string.

  Further, the operation key 14 implements a character string input unit 61 and a conversion candidate selection unit 62.

  The character string input unit 61 functions as an input unit and accepts an input of a character string representing reading of a phrase. The input of the character string is accepted via the character input key 18 of the operation key 14. Each character input key 18 is assigned a Japanese syllabary, such as “A line” for the character input key 18b and “Ka line” for the character string input key 18c. For example, when inputting a kana character using the character input key 18b, the character input key 18b is pressed once to “A”, pressed twice to “Yes”, pressed three times to “U”, and pressed four times to “E”. “O” is input when pressed five times, “A” is input when pressed six times, and “A” is input when pressed again after inputting “ぉ”.

  The conversion candidate selection unit 62 functions as a selection unit, and selects one candidate from the conversion candidates displayed on the conversion candidate display unit 65. Further, the conversion candidate selection unit 62 can select one of the co-occurrence conversion candidates from the phrase corresponding to the conversion candidate for the forward phrase or the phrase corresponding to the conversion candidate for the backward phrase. Furthermore, when the prediction candidate created by the prediction candidate creation unit 53 is displayed on the conversion candidate display unit 65, one candidate can be selected from the prediction candidates.

  The conversion candidate selection unit 62 is realized by the cross key 15 of the operation key 14, the confirmation key 16, and a cursor operated by the cross key 15. When the cross key 15 is operated in the up / down / left / right direction, the conversion candidate selection unit 62 can select an arbitrary conversion candidate by moving the cursor in the up / down / left / right direction accordingly. In addition, when a conversion candidate is selected, a confirmation process is accepted by pressing the confirmation key 16.

  The main display 20 implements an input character display unit 66 and a conversion candidate display unit 65.

  The input character display unit 66 functions as an input character string display area, and displays a character string received by the character input key 18. In addition, when the input character string conversion process or confirmation process is accepted, the corresponding character string is converted and displayed.

  The conversion candidate display unit 65 functions as a conversion candidate display area, and displays the co-occurrence conversion candidates searched by the co-occurrence information search unit 52. The conversion candidate display unit 65 also appropriately displays the prediction candidates searched and created by the prediction candidate creation unit 53.

  The conversion candidate display unit 65 includes a forward conversion candidate display unit 68 and a backward conversion candidate display unit 69 as necessary. The forward conversion candidate display unit 68 functions as a forward candidate display area, and displays phrases corresponding to the forward phrase conversion candidates among the co-occurrence conversion candidates. The backward conversion candidate display unit 69 functions as a backward candidate display area and displays a phrase corresponding to a backward phrase conversion candidate among co-occurrence conversion candidates. The forward conversion candidate display portion 68 and the backward conversion candidate display portion 69 are provided as separate display areas. For example, separate display areas are provided with the left half area of the conversion candidate display section 65 as the forward conversion candidate display section 68 and the left half area as the backward conversion candidate display section 69.

  The display control unit 33 causes the input character display unit 66 to display the input character string and the words and phrases that have undergone the conversion process and the confirmation process. In the conversion process, when one conversion candidate is selected by the conversion candidate selection unit 62, the character string corresponding to the selected conversion candidate displayed on the input character display unit 66 is converted into the conversion candidate. It is a process to be displayed. Further, in the determination process, when one conversion candidate is selected by the conversion candidate selection unit 62, a character string corresponding to the selected conversion candidate displayed on the input character display unit 66 is set as the conversion candidate. This is a process for confirming the conversion.

In addition, the display control unit 33 causes the conversion candidate display unit 65 to display the co-occurrence conversion candidates supplied from the co-occurrence information search unit and the prediction candidates supplied from the prediction candidate creation unit 53 as appropriate. In particular, the display control unit 33 appropriately displays the forward phrase and the backward phrase searched by the co-occurrence information search unit 52 in association with each other.

  FIG. 5 is a flowchart for explaining conversion candidate display processing executed by the character conversion processing unit of the mobile phone according to the present embodiment.

  FIG. 6 is a diagram illustrating a display example of the main display when the conversion candidate display process is executed.

  This conversion candidate display process is executed based on an instruction from the main control unit 30 after a character string is input, for example, when a character is input such as when an e-mail content creation screen is activated. FIG. 6A is a diagram illustrating a display example of the main display 20 at the time of starting up the creation screen of the content of the e-mail. A cursor 70 indicating a character input position is displayed on the input character display section 66 provided on the main display 20. The position of the cursor 70 shown in FIG. 6A is an initial position when the creation screen is activated. When the cross key 15 is pressed down in the vertical and horizontal directions, the cursor 70 moves in the vertical and horizontal directions. When the enter key 16 is pressed, a process for completing character input, which is a process assigned to “OK” displayed on the enter key function display unit 20a, is assigned. Further, the number of characters that are currently input (00000) and the total number of characters that can be input (30000) are displayed at the upper part of the input character display section 66, such as “00000/30000”.

  In step S1, the character string input unit 61 accepts input of a character string. The character string input unit 61 accepts an input when the character input key 18 to which a Japanese kana character is assigned is pressed.

  In step S <b> 2, the prediction candidate creation unit 53 receives an input from the character string input unit 61 in the input reception step S <b> 1 and based on the character string supplied from the input control unit 32, Search for candidate words (prediction candidates) that are predicted to be converted.

  When a prediction candidate is retrieved by the prediction candidate creation unit 53 (YES in step S3), the prediction candidate creation unit 53 creates a prediction candidate based on the search result in step S4 and supplies the prediction candidate to the display control unit 33. The display control unit 33 displays the supplied prediction candidates on the conversion candidate display unit 65 of the main display 20.

  For example, a case will be described in which the user finally wants to input the phrase “willingness is strong”. FIG. 6B is a diagram illustrating a display example of prediction candidates when an input of the character string “Ishiga” is received. The input character display portion 66 displays the character string “Ishiga” that has received the input. A conversion candidate display unit 65 is provided below the input character display unit 66, and the searched prediction candidates are displayed.

  When the input of the character string “Ishiga” is accepted, the prediction candidate creation unit 53 selects a word / phrase candidate whose conversion is predicted from the words / phrases stored in the prediction candidate storage unit 55 based on the character string “Ishiga”. Search for. Based on the search result, the prediction candidate creation unit 53, for example, “1. Stone, 2. Doctor, 3. Intent, 4. Will, 5. Will, 6. Child, 7. Drowning.” Create prediction candidates as follows. These words as prediction candidates are predicted to have a high possibility of being converted based on a character string that has been input and a word or phrase selected as a default because it is frequently used or a word or phrase obtained as a result of learning. Displayed in order. Note that phrases in phrase units are created as prediction candidates in the present embodiment.

  The prediction candidates created by the prediction candidate creation unit 53 are displayed by the display control unit 33 on the conversion candidate display unit 65 at a predetermined number, for example, eight prediction candidates at a time. When eight or more prediction candidates are retrieved and created, the ninth and subsequent prediction candidates are displayed by performing a scroll operation using the cross key 15.

  After creating the prediction candidate, the prediction candidate creating unit 53 returns to the input receiving step S1, and repeats the subsequent processing when a character string is further input. In addition, when selection processing or confirmation processing is performed from the prediction candidates before receiving input of a character string representing a backward phrase, the conversion candidate display processing is terminated at that time. In addition, description which performs a selection process and a determination process from the prediction candidates displayed on the conversion candidate display part 65 is abbreviate | omitted.

  When a prediction candidate associated with the input character string is not found (NO in step S3), in step S5, the phrase delimiter 51 determines that a phrase delimiter exists, and the input character string Is divided into phrase units. The phrase delimiter 51 regards the character input immediately before the last input character string as a phrase delimiter, and acquires a character string representing a forward phrase and a backward phrase.

  For example, in the input receiving step S1, when the character string input unit 61 receives an input of the character string “Ishiga”, the prediction candidate creation unit 53 searches for a prediction candidate. Further, after the character string input unit 61 accepts the input of “tsu”, if no prediction candidate is searched by the prediction candidate creation unit 53, the phrase segmentation unit 51 reads the last character of the character string accepted. The foreground is regarded as a paragraph break. That is, the phrase delimiter 51 regards the delimited character string “Ishiga” as one sentence, and acquires the character string “Ishiga” as a character string that represents the forward phrase, and “tsu” as a character string that represents the backward phrase. .

  The display control unit 33 acquires the prediction candidate last supplied from the prediction candidate creation unit 53 in the prediction candidate creation / display step S4 as the prediction candidate of the forward phrase.

  In step S <b> 6, the prediction candidate creation unit 53 searches for a prediction candidate of a backward phrase predicted to be converted from words stored in the prediction candidate storage unit 55 based on a character string representing the backward phrase. The search for the prediction candidate is performed in the same manner as the search for the prediction candidate of the forward phrase executed in the prediction candidate search step S2. The prediction candidate creation unit 53 supplies the search result to the display control unit 33 when a prediction candidate for the backward phrase is searched.

  For example, based on “T” acquired as a character string representing a backward phrase in the phrase delimiting step S5, the prediction candidate creating unit 53 searches for a phrase candidate that is predicted to be converted. Based on the search result, the prediction candidate creation unit 53 creates a prediction candidate such as “1. attach, 2. crane, 3. next, 4. pour,.

  In step S <b> 7, the co-occurrence information search unit 52 obtains a pair of phrases having a co-occurrence relationship associated with the character string representing the forward phrase and the backward phrase acquired by the phrase delimiter 51 from the co-occurrence information storage unit 54. Search for. When the input of the character string “Ishigatsu” is received, the co-occurrence information search unit 52 is based on the character string “Ishigatsu”, for example, a pair of clauses having a co-occurrence relationship stored in the co-occurrence information storage unit 54 A search is performed by comparing with a character string representing the reading of.

  When the corresponding co-occurrence conversion candidate is searched by the co-occurrence information search unit 52 (YES in step S8), in step S9, the co-occurrence information search unit 52 supplies the search result to the display control unit 33 as a co-occurrence conversion candidate. To do.

  For example, the co-occurrence information search unit 52 may co-occur as a co-occurrence conversion candidate in which “1. The doctor tells 2. The intention is transmitted 3. The strong will” is associated with the character string “Ishigatsu”. Search for a pair of phrases having an origin relationship. The co-occurrence information search unit 52 performs a search together with information related to the strength of the co-occurrence relationship between the pair of searched phrases. The co-occurrence information search unit 52 creates co-occurrence conversion candidates in order from a pair of phrases having a strong co-occurrence relationship based on information on the strength of the co-occurrence relationship, and supplies the co-occurrence conversion candidates to the display control unit 33. The co-occurrence conversion candidates searched by the co-occurrence information search unit 52 are created in the order of strong co-occurrence relation regardless of the frequency of use.

  In step S <b> 10, the display control unit 33 causes the conversion candidate display unit 65 to display the co-occurrence conversion candidates based on the co-occurrence conversion candidates supplied from the co-occurrence information search unit 52. At this time, the display control unit 33 may display the co-occurrence conversion candidates searched by the co-occurrence information search unit 52 by giving priority to the co-occurrence conversion candidates having a strong co-occurrence relationship, and may desire conversion. Makes it easier to select co-occurrence transformation candidates with higher.

  The display control unit 33 displays a co-occurrence conversion candidate, which is a pair of phrases, individually and in association with a phrase corresponding to the forward phrase and a phrase corresponding to the backward phrase. Specifically, a forward conversion candidate display unit 68 is provided in the left half region of the conversion candidate display unit 65, and a backward conversion candidate display unit 69 is provided in the right half region. The display control unit 33 causes the forward conversion candidate display unit 68 to display the phrase corresponding to the forward phrase conversion candidate among the co-occurrence conversion candidates, and backwardly converts the phrase corresponding to the backward phrase conversion candidate among the co-occurrence conversion candidates. It is displayed on the candidate display unit 69. At this time, the display control unit 33 displays a pair of phrases as co-occurrence conversion candidates so as to be adjacent to each other, thereby displaying them in association with each other.

  FIG. 6C is a diagram illustrating a display example of co-occurrence conversion candidates when an input of the character string “Ishigatsu” is received. The input character display section 66 displays the character string “Ishigatsu” that has received the input. Below the input character display part 66, a conversion candidate display part 65 is provided with a forward conversion candidate display part 68 and a backward conversion candidate display part 69, and the searched co-occurrence conversion candidates are displayed.

  In the forward conversion candidate display section 68, “doctor”, “will”, and “will” are phrases corresponding to the forward phrase conversion candidates in the co-occurrence conversion candidates. The backward conversion candidate display section 69 displays “speak”, “transmit”, and “strong” that are phrases corresponding to the backward phrase conversion candidates in the co-occurrence conversion candidates. Co-occurrence conversion candidates composed of a pair of phrases are displayed adjacent to each other. In addition, the arrow which connects a pair of clause shown in the figure connects a pair of clause which has co-occurrence relation, and was illustrated on account of description.

  In the display example shown in FIG. 6C, the forward conversion candidate display unit 68 and the backward conversion candidate display unit 69 are configured to display four conversion candidates. When the number of co-occurrence conversion candidates searched by the co-occurrence information search unit 52 is three or less, the display control unit 33 displays the forward phrase supplied from the prediction candidate creation unit 53 in the prediction candidate creation / display step S4. Of the prediction candidates, the number of displayable prediction candidates is displayed on the forward conversion candidate display unit 68. In addition, the display control unit 33 causes the backward conversion candidate display unit 69 to display the number of displayable prediction candidates among the prediction candidates of the backward phrase supplied from the prediction candidate creation unit 53 in the prediction candidate search step S6.

  On the other hand, when the corresponding co-occurrence conversion candidate is not searched by the co-occurrence information search unit 52 (NO in step S8), there is no co-occurrence conversion candidate that can be displayed on the conversion candidate display unit 65. Therefore, in step S11, The display control unit 33 displays on the conversion candidate display unit 65 the prediction candidates of the forward phrase and the backward phrase supplied from the prediction candidate creation part 53 in the prediction candidate creation / display step S4 and the backward phrase prediction candidate search step S6. At this time, the conversion candidate display unit 65 is provided with a forward conversion candidate display unit 68 and a backward conversion candidate display unit 69. The display control unit 33 causes the forward conversion candidate display unit 68 to display the forward phrase conversion candidates supplied from the prediction candidate creation unit 53 in the prediction candidate creation / display step S4. Further, the display control unit 33 causes the backward conversion candidate display unit 69 to display the backward phrase conversion candidates supplied from the prediction candidate creation unit 53 in the backward phrase prediction candidate search step S6.

  In step S12, the conversion candidate selection unit 62 determines whether or not a process for shifting to conversion candidate selection has been accepted. The process of shifting to conversion candidate selection is accepted when the cursor 70 displayed on the input character display unit 66 is aligned with the conversion candidate displayed on the conversion candidate display unit 65. Specifically, for example, when the downward direction of the cross key 15 is pressed, the conversion candidate selection unit 62 determines that a process for aligning the cursor with the conversion candidate has been received.

  If the conversion candidate selection unit 62 determines that a process for shifting to conversion candidate selection has not been received, the conversion candidate selection unit 62 stands by until the process shifts to conversion candidate selection.

  On the other hand, if the conversion candidate selection unit 62 determines that a process for shifting to conversion candidate selection has been received, the process transitions to a conversion candidate selection process.

  When the character string input unit 61 accepts input of a character string after the co-occurrence conversion candidate display step S10, the co-occurrence information search unit 52 searches for the corresponding co-occurrence conversion candidate and inputs the input character. Narrow down co-occurrence transformation candidates based on the column. Accordingly, the co-occurrence information search unit 52 searches for co-occurrence conversion candidates that are more likely to be converted, and when the corresponding co-occurrence conversion candidates are searched, the co-occurrence conversion candidates are displayed. To the unit 33. The display control unit 33 displays the co-occurrence conversion candidates on the conversion candidate display unit 65.

  FIG. 6D shows a display example of co-occurrence conversion candidates associated with the character string “Ishigatsu” that received the input shown in FIG. 6C in the co-occurrence conversion candidate display step S10. Furthermore, it is a figure which shows the example of a display of the co-occurrence conversion candidate at the time of receiving the input of character "ya".

  The character string “Ishiga Tsuya” is a character string corresponding to the input process of the phrase “Ishigatsu is good” that the user wants to finally input.

  After the character string “Ishigatsu” is input, the character “Y” that is considered to be input by the user is a character that is input by pressing the character input key 18i three times. That is, the character “yo” is finally input through the character “ya” that accepts input when the character input key 18i is pressed once and the character “yu” that accepts input when pressed twice. Accepted character.

  In the present embodiment, the co-occurrence information search unit 52 receives the input by further pressing the character input key 18i even when the character input key 18i is pressed once and the input of the character “ya” is received. Words and phrases formed including the accepted characters “yu”, “yo”, “nya”, “yu”, and “yo” are also search targets.

  The co-occurrence information search unit 52 searches for a co-occurrence conversion candidate associated with the character string “Ishiga Tsuya” as “1. Strong will”. In other words, the co-occurrence conversion candidates can be narrowed down to “strong will”, which is a word that is desired to be converted, by further inputting the character “YA”.

  That is, when the co-occurrence information search unit 52 receives further input of characters (character strings) after the search for co-occurrence change candidates, the co-occurrence information search unit 52 can narrow down the words and phrases that are desired to be input as conversion candidates. it can.

  According to the conversion candidate display process executed by the mobile phone 1 in the present embodiment, even when a character string composed of a plurality of phrases is input, the division of the phrases is automatically determined, and A conversion candidate can be acquired in consideration of the co-occurrence relationship between the forward phrase and the backward phrase acquired from the character string. Moreover, since conversion candidates are displayed in consideration of the co-occurrence relationship, conversion candidates can be narrowed down efficiently. In particular, when using an input form in which character conversion processing is executed after inputting a plurality of clauses instead of performing character conversion processing for each clause, it is desired based on the co-occurrence relationship between the forward clause and the backward clause. Conversion candidates can be obtained. That is, since the forward phrase and the backward phrase are narrowed down based on the co-occurrence relationship, conversion candidates that cannot be connected can be efficiently displayed without being preferentially displayed. .

  Furthermore, since the conversion candidates are acquired together with information on the strength of the co-occurrence relationship and are displayed on the conversion candidate display unit 65 preferentially from the candidates having the strong co-occurrence relationship, the conversion candidates that are highly likely to be converted. Can be displayed at the top. At this time, in order to display the conversion candidates with strong co-occurrence relations higher than the conversion candidates that have been used in the past, instead of displaying them higher in the conversion frequency, when inputting words rich in variations, When inputting a character string over two phrases, conversion candidates that are highly likely to be converted can be displayed at the top.

  In the co-occurrence conversion candidate display step S10, the display control unit 33 preferentially displays the co-occurrence conversion candidates having a strong co-occurrence relationship among the co-occurrence conversion candidates searched by the co-occurrence information search unit 52. Therefore, the selection operation performed later was reduced. At this time, in order to further reduce the selection operation, the character string representing the forward phrase displayed on the input character display unit 66 is changed to the phrase corresponding to the forward candidate conversion candidate among the co-occurrence conversion candidates displayed at the top. It may be converted and displayed.

  FIG. 6E is a diagram illustrating a display example in the case of converting a character string representing a forward phrase displayed on the input character display unit. In the display example shown in FIG. 6C, the character string “Ishiga” representing the forward phrase displayed on the input character display unit 66 is maintained in the state of the character string representing the reading. On the other hand, in the display example shown in FIG. 6E, the character string “Ishiga” representing the forward phrase is selected as the forward candidate conversion candidate among the co-occurrence conversion candidates “doctor tells” displayed at the top. The corresponding phrase “doctor” is displayed after conversion.

  Next, the conversion candidate selection process performed after execution of the conversion candidate display process will be described. FIG. 7 is a flowchart illustrating conversion candidate selection processing executed by the mobile phone according to the present embodiment.

  FIG. 8 is a diagram illustrating a display example of the main display when the conversion candidate selection process is executed. FIG. 8A is a diagram illustrating a display example at the start of the conversion candidate selection process. When the conversion candidate selection unit 62 accepts a process of shifting to conversion candidate selection, the conversion candidate selection unit 62 corresponds to the conversion candidate of the forward phrase displayed at the top of the forward conversion candidate display unit 68 of the conversion candidate display unit 65. It is designed to match the phrase “Doctor”.

  When the conversion candidate selection unit 62 accepts the process of shifting to conversion candidate selection, the conversion candidate selection unit 62 gives priority to the conversion candidate displayed at the top of the backward conversion candidate display unit 69 of the conversion candidate display unit 65. You may make it match. FIG. 8B is a diagram illustrating another display example at the start of the conversion candidate selection process. When the conversion candidate selection unit 62 accepts a process for shifting to conversion candidate selection, the conversion candidate selection unit 62 adjusts the cursor 70 to “notify” displayed at the top of the backward conversion candidate display unit 69 of the conversion candidate display unit 65. ing.

  In the conversion candidate selection process, when the conversion candidate is selected by the conversion candidate selection unit 62, the display control unit 33 sets the character string corresponding to the selected conversion candidate displayed on the input character display unit 66. Perform the conversion process. Thereby, the visibility of the conversion candidate currently selected can be improved.

  When the co-occurrence conversion candidate is selected, the character string conversion process corresponding to the phrase corresponding to the conversion candidate paired with the selected conversion candidate is simultaneously performed. For example, as shown in FIG. 8A, when “doctor” is selected, the character string “one” corresponding to “notify”, which is a conversion candidate paired with “doctor”. The conversion process is also performed at the same time, and the message is displayed as “Tell”.

  The forward conversion candidate display unit 68 and the backward conversion candidate display unit 69 may be displayed so as to change the background color, for example, so that the difference between these conversion candidates can be easily identified.

  When it is determined that the conversion candidate selection unit 62 has accepted the process of shifting to conversion candidate selection in the conversion candidate selection determination step S12, the co-occurrence conversion among the conversion candidates displayed on the conversion candidate display unit 65 in step S21. It is determined whether a candidate has been selected. If the conversion candidate selection unit 62 determines that the prediction candidate created by the prediction candidate creation unit 53 is selected instead of the co-occurrence conversion candidate, the conversion candidate selection unit 62 proceeds to conversion display step S23. For example, a case where a prediction candidate is selected by placing the cursor 70 on “stone” or “attach” shown in FIG.

  If the conversion candidate selection unit 62 determines that the co-occurrence conversion candidate has been selected by the cursor 70, the display control unit 33 redisplays the conversion candidates displayed on the conversion candidate display unit 65 in step S22. Specifically, when the conversion candidate selection unit 62 selects one phrase corresponding to the conversion candidate of the forward phrase displayed on the forward conversion candidate display unit 68 by the cursor 70, the display control unit 33 selects the conversion candidate. The phrase corresponding to the backward phrase conversion candidate paired with the phrase selected by the unit 62 is displayed at the top. When there are a plurality of clauses that are paired with the clause selected by the conversion candidate selection unit 62, the display control unit 33 sequentially displays all the relevant clauses from the top.

  FIG. 8C is a diagram illustrating a display example when one phrase corresponding to the forward phrase conversion candidate whose cursor 70 is displayed on the conversion candidate display unit 65 is selected.

  The conversion candidate selection unit 62 moves the cursor 70 in the operation direction to match an arbitrary conversion candidate when the cross key 15 is pressed in the vertical and horizontal directions from the state shown in FIG. 8A. . As shown in FIG. 8C, the conversion candidate selection unit 62 matches the “will”, which is one clause corresponding to the conversion candidate of the forward phrase displayed on the forward conversion candidate display unit 68 by the cursor 70. In this case, the display control unit 33 displays “strong” that is a phrase corresponding to the conversion candidate of the backward phrase that is paired with the phrase selected by the conversion candidate selection part 62 at the top of the backward conversion candidate display part 69. At this time, the display control unit 33 displays the phrase “strong” corresponding to the conversion candidate of the backward phrase that is paired with the phrase selected by the conversion candidate selection unit 62 at the top and further displays it in bold. Or may be displayed in bold without being displayed at the top.

  On the other hand, FIG. 8D is a diagram showing a display example when one phrase corresponding to the backward phrase conversion candidate whose cursor 70 is displayed on the conversion candidate display unit 65 is selected.

  The conversion candidate selection unit 62 performs display control when the conversion candidate selection unit 62 sets the cursor 70 to “strong” which is one phrase corresponding to the conversion candidate of the backward phrase displayed on the backward conversion candidate display part 69. The unit 33 displays “will”, which is a clause corresponding to the conversion candidate of the forward phrase paired with the clause selected by the conversion candidate selection unit 62, at the top of the forward conversion candidate display unit 68.

  In step S23, the conversion candidate selection unit 62 determines whether or not a confirmation process has been received for the selected conversion candidate. The conversion candidate selection unit 62 accepts the confirmation process when the confirmation key 16 to which the confirmation process is assigned is pressed after the cursor 70 is selected and selected for one conversion candidate. Note that “OK” displayed on the confirmation key function display portion 20 a of the main display 20 indicates a confirmation process assigned to the confirmation key 16.

  When it is determined that the confirmation process has been accepted, the conversion candidate selection unit 62 performs a character string confirmation process on the selected conversion candidate in step S24. On the other hand, if it is determined that the confirmation process has not been performed, the conversion candidate selection unit 62 returns to the selection determination process step S21 and repeats the subsequent processes.

  In step S25, the display control unit 33 switches the display of the conversion candidate display unit 65. When the character string subjected to the confirmation process in the confirmation step S24 is a character string representing a forward phrase, the display control unit 33 provides only the backward conversion candidate display part 69 in the conversion candidate display part 65 to display the backward phrase. Display only conversion candidates. If the character string subjected to the confirmation process in the confirmation step S24 is a character string representing a backward phrase, only the forward conversion candidate display part 68 is provided in the conversion candidate display part 65 so that only the forward phrase conversion candidate is displayed. Display. At this time, if the conversion candidate determined in the determination step S24 is a co-occurrence conversion candidate, the display control unit 33 sets the phrase that is paired with the determined co-occurrence conversion candidate phrase as the highest rank among the conversion candidates. To display. Further, the conversion candidate selection unit 62 automatically selects the conversion candidate that is the phrase that is most likely to be selected and that is paired with the determined phrase of the co-occurrence conversion candidate by placing the cursor 70 thereon. For this reason, selection processing by operating the cross key is performed on a pair of clauses that are assumed to be selected / confirmed after the confirmation processing is performed on the character string representing one clause. Can be omitted.

  FIG. 8E is a diagram illustrating a display example of the conversion candidate display unit 65 after the confirmation process is performed on the character string representing the forward phrase. The display control unit 33 includes only the backward conversion candidate display unit 69 in the conversion candidate display unit 65, and displays a predetermined number of phrases and backward phrase prediction candidates corresponding to the backward phrase conversion candidates among the co-occurrence conversion candidates. At this time, the display control unit 33 determines that the conversion candidate determined in the determination step S24 is the phrase “will” corresponding to the conversion candidate of the forward phrase among the co-occurrence conversion candidates. The phrase “strong” corresponding to the conversion candidate is displayed at the top. In addition, the conversion candidate selection unit 62 automatically selects the item by placing the cursor 70 on “strong”.

  FIG. 8F is a diagram illustrating a display example of the conversion candidate display unit 65 after the confirmation process is performed on the character string representing the backward phrase. The display control unit 33 includes only the forward conversion candidate display unit 68 in the conversion candidate display unit 65, and displays a predetermined number of phrases corresponding to forward phrase conversion candidates and forward phrase prediction candidates among the co-occurrence conversion candidates. At this time, since the conversion candidate determined in the determination step S24 is the phrase “strong” corresponding to the backward phrase among the co-occurrence conversion candidates, the display control unit 33 sets the conversion candidate for the forward phrase that is paired with this phrase. The corresponding phrase “will” is displayed at the top. In addition, the conversion candidate selection unit 62 automatically selects “willing” by placing the cursor 70 on it.

  In step S26, the conversion candidate selection unit 62 determines whether one conversion candidate has been selected and a confirmation process has been accepted. If it is determined that the conversion candidate selection and the confirmation process for the conversion candidate are not accepted, the conversion candidate selection unit 62 waits until the confirmation process is accepted.

  On the other hand, if it is determined that one conversion candidate has been selected and the confirmation process has been accepted, the conversion candidate selection unit 62 executes the confirmation process on the character string corresponding to the selected conversion candidate, and ends the conversion candidate selection process To do. FIG. 8G is a diagram illustrating a display example of the main display 20 after the conversion candidate selection process is completed. When “strong” is selected from the backward conversion candidate display section 69 shown in FIG. 8E or “will” is selected from the forward conversion candidate display section 68 shown in FIG. The conversion candidate selection unit 62 performs a confirmation process, and ends the conversion candidate selection process for finally converting the character string “Ishigatsu” into “strong will”. After the confirmation process, only the character string input unit 66 is displayed on the main display 20, and the cursor 70 is displayed at the end of the sentence where the input of the character string continues.

  In the conversion candidate selection process executed in the present embodiment, the display control unit 33 selects the display displayed on the input character display unit 66 when the conversion candidate is selected by the conversion candidate selection unit 62. However, the present invention is not limited to this, and the display may be maintained in the state of the character string representing the reading until the confirmation process is received.

  According to the conversion candidate selection process executed by the mobile phone 1 in the present embodiment, when a character string representing two phrases is input, the character string representing the forward phrase and the character string representing the backward phrase respectively Since the conversion candidates are displayed, the selection / confirmation process can be executed in order from the conversion candidate of any phrase among the conversion candidates of the forward phrase and the backward phrase.

  In addition, in the conversion candidate display process, a co-occurrence conversion candidate composed of a pair of phrases is displayed at the top of the co-occurrence conversion candidate having a strong co-occurrence relationship based on information about the strength of the co-occurrence relationship. Conversion candidates that are assumed to be converted by a user who has input a character string representing the character string are displayed at the top. For this reason, the user can perform a selection / confirmation process with a small selection operation for a desired conversion candidate by continuously inputting a forward phrase and a part of the backward phrase among the two phrases.

  For example, based on the displayed co-occurrence conversion candidates, when a phrase representing the conversion candidate of the forward phrase is selected from the co-occurrence conversion candidates and the confirmation process is performed, the phrase indicating the conversion candidate of the backward phrase is displayed as the backward conversion candidate display Since it is displayed at the top of the section 69 and is automatically selected, the user can execute a conversion / confirmation process of a desired conversion candidate by simply pressing the confirmation key 16 without performing a selection operation. Can do.

  Furthermore, the conversion candidate selection process is a work for visually searching for a plurality of displayed conversion candidates while judging which word is a desired candidate against its own memory. This is a burden for the user. On the other hand, since the mobile phone 1 according to the present embodiment displays conversion candidates based on the co-occurrence relationship between a pair of phrases, the selection process is reduced even when the storage of a word or phrase desired to be converted is uncertain. And the forward and backward clauses can be converted into correct phrases.

  Next, another conversion candidate display process will be described. In this other conversion candidate display process, only the backward conversion candidate display section 69 is provided in the conversion candidate display section 65, and only the phrases corresponding to the backward phrase conversion candidates among the co-occurrence conversion candidates are displayed as a list.

  FIG. 9 is a flowchart for explaining another conversion candidate display process executed by the character conversion processing unit of the mobile phone according to the present embodiment.

  The character string input acceptance step S31 to the co-occurrence conversion candidate creation step S39 are the same as the character string input acceptance step S1 to the co-occurrence conversion candidate creation step S9 in the conversion candidate display process of FIG.

  In step S <b> 40, the display control unit 33 displays the co-occurrence conversion candidates on the conversion candidate display unit 65 based on the co-occurrence conversion candidates supplied from the co-occurrence information search unit 52. At this time, the display control unit 33 preferentially displays the co-occurrence conversion candidates having a strong co-occurrence relationship among the co-occurrence conversion candidates searched by the co-occurrence information search unit 52.

  The display control unit 33 is provided with a backward conversion candidate display unit 69 on the entire surface of the conversion candidate display unit 65, and a phrase corresponding to the backward phrase conversion candidate among the co-occurrence conversion candidates that are a pair of phrases is displayed in the backward conversion candidate display unit. 69 is displayed. Further, the display control unit 33 selects the phrase corresponding to the backward phrase conversion candidate displayed at the top of the backward conversion candidate display part 69 among the phrases corresponding to the forward phrase conversion candidates in the supplied co-occurrence conversion candidates. The phrase corresponding to the conversion candidate of the forward phrase that forms a pair is displayed by converting the character string representing the forward phrase displayed on the input character display unit 66. That is, the phrase corresponding to the conversion candidate of the backward phrase displayed at the top of the co-occurrence conversion candidates and the phrase corresponding to the conversion candidate of the forward phrase paired with this phrase are displayed in association with each other.

  FIG. 10 is a diagram illustrating a display example of co-occurrence conversion candidates when an input of the character string “Ishigatsu” is received. The conversion candidate display unit 65 is provided with a backward conversion candidate display unit 69, and the phrase corresponding to the conversion candidate of the backward phrase among the searched co-occurrence conversion candidates is displayed.

  In the backward conversion candidate display section 69, “notify”, “transmit”, and “strong” are displayed as co-occurrence conversion candidates. The display control unit 33 also selects a phrase corresponding to a backward phrase conversion candidate displayed at the top of the backward conversion candidate display part 69 among the phrases corresponding to the forward phrase conversion candidate in the supplied co-occurrence conversion candidate. The phrase “doctor” corresponding to the conversion candidate of the forward phrase that is paired with “notify” is displayed in association with the character string “Ishiga” representing the forward phrase displayed on the input character display unit 66 by conversion. Let

  Further, in the display example shown in FIG. 10, the backward conversion candidate display unit 69 is configured to display eight conversion candidates. When the number of co-occurrence transformation candidates searched by the co-occurrence information search unit 52 is eight or less, the display control unit 33 displays the backward phrase supplied from the prediction candidate creation unit 53 in the prediction candidate creation / display step S34. Of the prediction candidates, the number of displayable prediction candidates is displayed on the backward conversion candidate display unit 69. For example, in FIG. 10, following the co-occurrence conversion candidates supplied from the co-occurrence information search unit 52, “attach”, “fish”, “crane” of the backward phrase prediction candidates supplied from the prediction candidate creation unit 53. "," Next "and" Pour "are displayed.

  On the other hand, when the corresponding co-occurrence conversion candidate is not searched by the co-occurrence information search unit 52 (NO in step S38), in step S41, the display control unit 33 displays the forward conversion candidate provided in the conversion candidate display unit 65. The prediction candidates are displayed on the display unit 68 and the backward conversion candidate display unit 69, respectively. In the prediction candidate display step S41, the same process as the prediction candidate display step S11 in the conversion candidate display process of FIG. 5 is executed, and the conversion candidate display process ends. In addition, description about the character conversion process based on a prediction candidate when a co-occurrence conversion candidate is not searched is abbreviate | omitted.

  In step S42, the conversion candidate selection unit 62 determines whether or not a process for shifting to conversion candidate selection has been accepted. Selection of the conversion candidate is shifted when the cursor 70 displayed on the input character display unit 66 is matched with the conversion candidate displayed on the conversion candidate display unit 65. Specifically, for example, when the conversion candidate selection unit 62 presses the downward direction of the cross key 15, it is determined that the process of aligning the cursor with the backward conversion candidate is accepted.

  If the conversion candidate selection unit 62 determines that a process for shifting to conversion candidate selection has not been received, the conversion candidate selection unit 62 stands by until the process shifts to conversion candidate selection.

  On the other hand, if the conversion candidate selection unit 62 determines that a process for shifting to conversion candidate selection has been received, the process transitions to a conversion candidate selection process.

  FIG. 11 is a flowchart for explaining another conversion candidate selection process executed by the mobile phone according to the present embodiment.

  FIG. 12 is a diagram illustrating a display example of the main display when another conversion candidate selection process is executed. FIG. 12A is a diagram illustrating a display example at the start of another conversion candidate selection process. When the conversion candidate selection unit 62 accepts a process for shifting to conversion candidate selection, the conversion candidate selection unit 62 sets the cursor 70 to “notify” displayed at the top of the backward conversion candidate display unit 69.

  When it is determined that the conversion candidate selection unit 62 has accepted the process of shifting to conversion candidate selection in the conversion candidate selection determination step S42, the co-occurrence conversion among the conversion candidates displayed on the conversion candidate display unit 65 in step S51. It is determined whether a candidate has been selected. If the conversion candidate selection unit 62 determines that the prediction candidate created by the prediction candidate creation unit 53 is selected instead of the co-occurrence conversion candidate, the conversion candidate selection unit 62 proceeds to a determination processing determination step S53. For example, a case where a prediction candidate is selected by placing the cursor 70 on “attach” or “crane” shown in FIG.

  If the conversion candidate selection unit 62 determines that the co-occurrence conversion candidate is selected by the cursor 70, in step S52, the display control unit 33 selects a phrase corresponding to the conversion candidate of the forward phrase in the supplied co-occurrence conversion candidate. Among these, the character corresponding to the phrase corresponding to the conversion candidate of the forward phrase that is paired with the phrase corresponding to the conversion candidate of the backward phrase displayed on the backward conversion candidate display part 69 is the character representing the forward phrase displayed on the input character display part 66. Display the column by converting it. That is, the phrase corresponding to the conversion candidate of the selected backward phrase among the co-occurrence conversion candidates and the phrase corresponding to the conversion candidate of the forward phrase that is paired with this phrase are displayed in association with each other.

  FIG. 12B is a diagram illustrating a display example when one phrase corresponding to the backward phrase conversion candidate whose cursor 70 is displayed on the conversion candidate display unit 65 is selected.

  As shown in FIG. 12B, when the cursor 70 is set to “strong” which is one phrase corresponding to the conversion candidate of the backward phrase displayed on the backward conversion candidate display part 69 by the conversion candidate selection part 62. The display control unit 33 represents the forward phrase displayed on the input character display unit 66 as “will”, which is a phrase corresponding to the forward phrase conversion candidate paired with the phrase selected by the conversion candidate selection unit 62. The character string “Ishiga” is displayed by converting it.

  In step S53, the conversion candidate selection unit 62 determines whether or not a confirmation process has been accepted for the selected conversion candidate. If it is determined that the confirmation process has been accepted, the conversion candidate selection unit 62 performs a confirmation process for confirming the conversion of the character string to the selected pair of co-occurrence conversion candidates in step S54. In the case where the confirmation process is accepted for the prediction conversion candidate displayed and selected on the conversion candidate display unit 65, for example, after confirming only the character string representing the backward phrase, the display control unit 33 displays the conversion candidate display unit. A forward conversion candidate display unit 68 may be provided at 65 so that a prediction candidate corresponding to a character string representing a forward phrase is displayed and the selection process may be performed.

  On the other hand, if it is determined that the confirmation process has not been performed, the conversion candidate selection unit 62 returns to the selection determination process step S51 and repeats the subsequent processes.

  According to the mobile phone 1, selection / confirmation processing can be executed from a backward phrase conversion candidate. Further, since the corresponding forward phrase can be automatically displayed in association with the selected candidate for the backward phrase, the selection operation can be reduced.

  The information processing apparatus according to the present invention may be realized by appropriately combining the processing configurations applied to the mobile phone 1 in the present embodiment.

  In the present embodiment, the information processing apparatus according to the present invention has been described as applied to the mobile phone 1, but a PDA (Personal Digital Assistant), personal computer, portable game machine, portable music player, portable video player The present invention can also be applied to information processing apparatuses having other machines and other character input functions.

  Furthermore, the series of processes described in the present embodiment can be executed by software, but can also be executed by hardware.

  In the present embodiment, the steps of the flowchart show examples of processing that is performed in time series in the order described, but the processing that is executed in parallel or individually is not necessarily performed in time series. Is also included.

The figure which shows the structure of the external appearance of the foldable mobile telephone which is an example of the information processing apparatus which concerns on this invention. The figure which shows the structure of the other external appearance of the foldable mobile telephone which is an example of the mobile telephone which concerns on this invention. The figure which shows the structure inside the mobile telephone in this embodiment. The block diagram which showed roughly the functional structure of each part which performs the character conversion process in the mobile telephone in this embodiment. The flowchart explaining the conversion candidate display process performed with the mobile telephone in this embodiment. The figure which shows the example of a display of the main display at the time of conversion candidate display processing execution. 6 is a flowchart for explaining conversion candidate selection processing executed by the mobile phone according to the present embodiment. The figure which shows the example of a display of the main display at the time of conversion candidate selection processing execution. The flowchart explaining the other conversion candidate display process performed by the character conversion process part of the mobile telephone in this embodiment. The figure which shows the example of a display of the main display at the time of other conversion candidate display processing execution. The flowchart explaining the other conversion candidate selection process performed with the mobile telephone in this embodiment. The figure which shows the example of a display of the main display at the time of other conversion candidate selection processing execution.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cellular phone 11 Hinge part 12 1st housing | casing 13 2nd housing | casing 14 Operation key 15 Cross key 16 Confirmation key 18 Character input key 19 Soft key 20 Main display 30 Main control part 31 Power supply circuit part 32 Input control part 33 Display control unit 34 Storage unit 35 Audio control unit 36 Communication control unit 38 Antenna 39 Character conversion processing unit 51 Phrase segmentation unit 52 Co-occurrence information search unit 53 Prediction candidate creation unit 54 Co-occurrence information storage unit 55 Prediction candidate storage unit 61 Character string Input unit 62 Conversion candidate selection unit 65 Conversion candidate display unit 66 Input character display unit 68 Forward conversion candidate display unit 69 Back conversion candidate display unit 70 Cursor

Claims (14)

Input means for accepting input of a character string representing the reading of the phrase;
Display means;
A character string received by the input means is divided into clauses, a character string before the clause separation is a character string representing a forward clause, and a character string after the clause separation is a character string representing a backward clause. A clause delimiter to obtain;
A co-occurrence information storage means in which a pair of clauses having a co-occurrence relationship is stored in association with a character string representing a reading;
Co-occurrence that searches the co-occurrence information storage means for a co-occurrence conversion candidate that consists of a pair of phrases having a co-occurrence relationship associated with the character string representing the forward phrase and the backward phrase acquired by the phrase delimiting means Information retrieval means;
As a co-occurrence transformation candidate searched by the co-occurrence information search means, a display control means for causing the display means to display the phrase corresponding to the forward phrase and the phrase corresponding to the backward phrase individually and in association with each other,
An information processing apparatus comprising: The co-occurrence information storage unit further stores information on the strength of co-occurrence relationships of co-occurrence conversion candidates including the pair of clauses,
The display control means preferentially causes the display means to display the co-occurrence conversion candidates having a strong co-occurrence relationship among the co-occurrence conversion candidates searched by the co-occurrence information search means. 1. An information processing apparatus according to 1. The display means includes
It has at least an input character string display area for displaying a character string received by the input means, and a conversion candidate display area for displaying at least the co-occurrence conversion candidates searched by the co-occurrence information search means. The information processing apparatus according to claim 1 or 2.   The conversion candidate display area includes a forward conversion candidate display area for displaying a phrase corresponding to the conversion candidate of the forward phrase among the co-occurrence conversion candidates including the pair of phrases, and a backward conversion candidate display area of the co-occurrence conversion candidate. The information processing apparatus according to claim 3, further comprising a backward conversion candidate display area for displaying a phrase corresponding to the conversion candidate.   A selection means for selecting one phrase from a phrase corresponding to the conversion candidate for the forward phrase or a phrase corresponding to the conversion candidate for the backward phrase among the co-occurrence conversion candidates displayed in the conversion candidate display area; The information processing apparatus according to claim 4, wherein When one phrase corresponding to the forward phrase conversion candidate displayed in the forward conversion candidate display area is selected by the selection means, the display control means makes a pair with the phrase selected by the selection means. The phrase corresponding to the backward phrase conversion candidate is displayed at the top,
When the selection means selects one phrase corresponding to the backward phrase conversion candidate displayed in the backward conversion candidate display area, the display control means makes a pair with the phrase selected by the selection means. 6. The information processing apparatus according to claim 5, wherein a phrase corresponding to the forward phrase conversion candidate formed is displayed at the highest level.   When the co-occurrence conversion candidate is searched for by the co-occurrence information search means, the display control means uses a character string representing the forward phrase displayed in the input character string display area as a part of the co-occurrence conversion candidates. 4. The information processing apparatus according to claim 3, wherein the information is converted into a phrase corresponding to the conversion candidate of the preceding phrase of one co-occurrence conversion candidate and displayed. The display means includes
An input character string display area for displaying at least a character string accepted by the input means, and a phrase corresponding to a conversion candidate of the backward phrase among at least the co-occurrence conversion candidates searched by the co-occurrence information search means The information processing apparatus according to claim 1, further comprising a backward conversion candidate display area that displays When a co-occurrence conversion candidate is searched by the co-occurrence information search means, the display control means displays a phrase corresponding to the conversion candidate of the backward phrase in the backward conversion candidate display area,
The character string representing the forward phrase displayed in the input character string display area is converted from the backward phrase displayed at the top of the backward conversion candidate display area among the phrases corresponding to the conversion candidates of the forward phrase. The information processing apparatus according to claim 8, wherein the information is converted into a phrase corresponding to the conversion candidate of the forward phrase that is paired with the phrase corresponding to the candidate and displayed.   9. The information processing apparatus according to claim 8, further comprising selection means for selecting one phrase from phrases corresponding to the backward phrase conversion candidates displayed in the backward conversion candidate display area.   When one phrase is selected by the selection means, the display control means corresponds to a character string representing the forward phrase displayed in the input character string display area, as a conversion candidate for the selected backward phrase. The information processing apparatus according to claim 10, wherein the information is converted into a phrase corresponding to the conversion candidate of the forward phrase that is paired with the phrase and displayed. Prediction candidate storage means for storing candidate words predicted from the character string input by the input means as prediction candidates in association with the input character string;
Retrieval candidates for the forward phrase and the backward phrase are respectively retrieved by searching for a candidate for a phrase predicted from the character string representing the forward phrase acquired by the phrase delimiter and the character string representing the character string representing the backward phrase. A prediction candidate creation means for creating each,
When the co-occurrence conversion candidate is searched by the co-occurrence information search means, the display control means preferentially displays the searched co-occurrence conversion candidate in the conversion candidate display area, and the prediction candidate 5. The information processing apparatus according to claim 4, wherein the prediction candidate searched and created by the creation means is displayed subsequent to the co-occurrence conversion candidate.   If the co-occurrence conversion candidate is not searched by the co-occurrence information search means and only the prediction candidate is searched by the prediction candidate creation means, the display control means determines the prediction candidate of the forward phrase as the forward conversion candidate. The information processing apparatus according to claim 12, wherein the information processing apparatus is displayed in a display area, and the prediction candidate of the backward phrase is displayed in the backward candidate display area. 14. The clause delimiter according to claim 1, wherein when the prediction candidate is not found in the input character string, the phrase delimiter is a character immediately before the last input character string. Information processing device.

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