JP5510009B2 - Portable terminal device, kana-kanji conversion dictionary generation method, kana-kanji conversion method, and program - Google Patents

Description

  The present invention relates to a portable terminal device, and more particularly to a Japanese conversion method at the time of character input using a Japanese input system mounted on the device.

  The portable terminal device is always carried around at travel destinations and business trip destinations outside the daily life area, and is used for various purposes such as contact with a meeting partner and retrieval of facility information around the destination. In such cases, when inputting characters on the mobile terminal device, it may be necessary to input a place name, a facility name, etc. peculiar to the area.

  The portable terminal device is equipped with a Japanese conversion function and dictionary data for conversion as basic functions for inputting characters. Japanese conversion function, also called Kana-Kanji conversion, refers to dictionary data for input reading (Kana) and displays Japanese (Kana) candidate conversion (Kanji) candidates Is a basic function. Dictionary data is an important factor for obtaining optimal conversion results. If there are a large number of words registered in the dictionary data, the probability of obtaining the optimal conversion results increases and the conversion efficiency increases. Can do.

  However, in dictionary data installed in mobile phone terminals, the number of registered words is limited due to limitations on memory capacity and processing speed at the time of conversion. There was a limit to accommodating nouns in dictionary data.

  As a solution to this problem, GPS (Global Positioning Systems), which will be increasingly installed in mobile phone terminals in accordance with the enforcement of the Ministry of Internal Affairs and Communications, which makes the function of notifying the location information of the caller at the time of an emergency call mandatory. A method of using a location information confirmation function based on has been devised. With the location information confirmation function, the geographical current location of the terminal detected by the GPS is transmitted to the server, and the server is composed of an image representing the topography and the like, proper noun data such as proper nouns, etc. The map information is acquired, and the current location, the destination, and the like are superimposed on the map displayed on the terminal.

  In relation to the above description, a machine translation system, a machine translation method and a program are disclosed in the reissued WO 2005/091166. In this example, proper translation is possible even for proper nouns not registered in the dictionary in machine translation and automatic translation processing. The proper noun dictionary data generation means creates proper noun user dictionary data from the proper nouns in the target language held in the proper noun storage unit according to a predetermined rule. The created proper noun user dictionary data is stored in the proper noun user dictionary storage unit. The proper noun user dictionary is output to the output device as needed, and is referred to when the translation target sentence is input. The machine translation means translates using the proper noun user dictionary stored in the proper noun user dictionary storage unit in addition to the machine translation dictionary.

  Japanese Unexamined Patent Application Publication No. 2003-330916 discloses a regional proper noun dictionary receiving system and a mobile terminal device. This includes a portable terminal device having a position detection function for detecting the geographical current position of the terminal itself, and a server having a database of regional proper noun dictionaries that describe information including reading kana regarding local specific nouns. Then, the mobile terminal device transmits the location information acquired by the location detection function to the server using the communication function. When the server receives the location information from the mobile terminal device, the matching between the location information and the regional proper noun dictionary is performed. The local proper noun dictionary suitable for the location information is selected and downloaded to the mobile terminal device, and the mobile terminal device outputs the local proper noun using the acquired dictionary data to The word conversion accuracy is improved.

  A character conversion method and a portable terminal are disclosed in Japanese Patent Application Laid-Open No. 2004-185200. In the present invention, when the mobile terminal receives the current position information, the mobile terminal obtains a place name (proper noun) based on the position information by referring to a database in which the mobile terminal has a corresponding position information and place name (proper noun). Then, the place name is compared with an input character conversion candidate, and when the place name is included in the conversion candidates, the place name is positioned as a leading candidate for the conversion candidate.

  Japanese Patent Application Laid-Open No. 08-129635 discloses a place name dictionary based on longitude and latitude, a method for creating the same, and a place name display device based on longitude and latitude. In this example, a digital map that is set by superimposing the latitude and longitude grid information on the map data of the image is displayed on the display screen, and a closed curve is drawn along the boundary of the area partitioned by the place name on the displayed map, A color or density code is set in the area of the place name surrounded by this closed curve and recognized as a unit area. The place name is uniquely defined in this unit area, and a grid of latitude and longitude in the unit area is formed. The coordinates of intersections to be recognized are numerically recognized and created as numerical group data, and a combination of the place name of the unit area and the numerical group data is gathered for all place names to form a place name table, and this place name table is a magnetic storage device. The place name dictionary is based on the longitude and latitude stored in. This place name dictionary is incorporated in the GPS device, and the place name of the position is displayed in characters.

Reissue WO2005 / 091166 JP 2003-330916 A JP 2004-185200 A Japanese Patent Application Laid-Open No. 08-129635

  In the case of proper nouns that have permeated the world, they are often registered in the basic dictionary for Japanese conversion as basic words. However, in the case of proper nouns with strong regional colors, they are not registered in the basic dictionary, so it takes time for Japanese conversion.

  The above-described problem can be solved by including a lot of proper noun data in the basic dictionary. However, in the case of a portable terminal device, the number of words to be registered as data in the basic dictionary is often limited due to limitations such as memory capacity and processing speed during conversion.

  A problem to be solved by the present invention is a portable terminal device having a function of generating dictionary data including proper nouns suitable for a region, and a function of converting a character string into proper nouns using the dictionary data Is to provide.

  The portable terminal device of the present invention includes a mobile communication control unit that receives map data including a place name and a reading kana corresponding to the place name, and a terminal control unit that determines whether the map data includes a place name and a reading kana. And an extended dictionary for storing kana-kanji conversion data, and the terminal control unit is configured to generate kana-kanji conversion data in which a place name and a reading kana are paired from map data.

  According to the method for generating a kana-kanji conversion dictionary of the present invention, the terminal control unit of the mobile terminal device determines whether the map data includes a place name and a reading kana corresponding to the place name, and mobile communication of the mobile terminal device. The control unit receives the map data, the terminal control unit generates the kana-kanji conversion data in which the place name and the reading kana are paired, and the terminal control unit converts the kana-kanji conversion into the extended dictionary of the mobile terminal device. Storing data.

  In the kana-kanji conversion method of the present invention, the terminal control unit of the mobile terminal device determines whether the map data includes a place name and a reading kana corresponding to the place name, and the mobile communication control unit of the mobile terminal device includes: The step of receiving the map data, the step of the terminal control unit generating kana-kanji conversion data in which the place name and the reading kana are paired, and the terminal control unit storing the kana-kanji conversion data in the extended dictionary of the portable terminal device A step, the operation unit of the mobile terminal device inputs a character string included in the reading kana, and the terminal control unit refers to the extended dictionary and uses the place name as a character string conversion candidate to display the mobile terminal device display unit And a step of outputting to

  According to the present invention, a portable terminal device having a function of generating dictionary data including proper nouns suitable for a region, and a function of converting a character string into proper nouns using the dictionary data, for kana-kanji conversion It is possible to provide a dictionary generation method, a Kana-Kanji conversion method, and a program.

FIG. 1 is a functional block diagram showing a configuration of a mobile phone which is an example of a mobile terminal device according to an embodiment of the present invention. FIG. 2 is a flowchart showing the operation of the mobile phone which is an example of the mobile terminal device according to the first embodiment of the present invention. FIG. 3 is a schematic diagram illustrating a display example of map data on the display unit of the mobile terminal device according to the embodiment of the present invention. FIG. 4 is a schematic diagram illustrating a configuration example of proper noun data on the storage unit of the mobile terminal device according to the embodiment of the present invention. FIG. 5 is a schematic diagram illustrating another configuration example of proper noun data on the storage unit of the mobile terminal device according to the embodiment of the present invention. FIG. 6 is a schematic diagram illustrating an output example of Japanese conversion in the mobile terminal device according to the embodiment of the present invention. FIG. 7 is a schematic diagram illustrating another output example of Japanese conversion in the mobile terminal device according to the embodiment of the present invention. FIG. 8A is a flowchart showing the operation of the mobile phone which is an example of the mobile terminal device according to the second embodiment of the present invention. FIG. 8B is a flowchart showing the operation of the mobile phone which is an example of the mobile terminal device according to the second embodiment of the present invention. FIG. 9 is a flowchart showing the operation of the mobile phone as an example of the mobile terminal device according to the third embodiment of the present invention.

(First embodiment)
Hereinafter, a mobile terminal device, a Japanese input system, and a Japanese conversion method according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  First, the configuration of the mobile terminal device according to the embodiment of the present invention will be described in detail.

  FIG. 1 is a functional block diagram showing a configuration of a mobile phone which is an example of a mobile terminal device according to an embodiment of the present invention. Referring to FIG. 1, an embodiment of a mobile phone 1 according to the present invention includes an operation unit 2, a display unit 3, a storage unit 4, dictionary data 5, a terminal control unit 6, and a mobile communication control unit 7. Is included. The terminal control unit 6 is connected to the operation unit 2, the display unit 3, the storage unit 4, the dictionary data 5, and the mobile communication control unit 7 through an internal bus, and can control each unit. Note that various configurations other than the above-described configuration, such as a speaker, a microphone, a battery, and the like, are not directly related to the present invention, and thus the detailed configuration and description of the operation are omitted.

  The operation unit 2 is an input device exemplified by a keyboard, a touch panel, and the like, and includes keys (buttons) for performing operation determination, cancellation, character string input, and the like by the user.

  The display unit 3 is a display device exemplified by a liquid crystal panel, an organic EL (Electro-Luminescence), and the like, and displays various states of the mobile phone 1, acquired map data, input character information, and the like.

  The storage unit 4 includes a read only memory, a main storage device exemplified by a RAM (Random Access Memory) and the like, and an auxiliary storage device exemplified by a nonvolatile semiconductor memory such as a flash memory. The control program of the mobile phone 1 is read-only memory, the work data of the terminal control unit is stored in the RAM, the control information of the mobile phone 1 and the data input by the user or received from the outside are stored in the auxiliary storage device, etc. Thus, data is stored in an appropriate area depending on the type of data.

  The dictionary data 5 includes a basic dictionary 5-1 that is a dictionary database in which standard words and reading kana as reading kana corresponding to the words are registered, and an extension that is an extended dictionary database obtained from map data. Dictionary 5-2. Since the data in the extended dictionary 5-2 is generated when necessary for Japanese conversion, nothing may be registered in the initial state. The extended dictionary 5-2 can register a plurality of data as long as the dictionary data capacity permits, and can also delete the registered data. In the functional block diagram of FIG. 1, the storage unit 4 and the dictionary data 5 are shown in separate blocks. However, the dictionary data 5 may be stored in the area of the storage unit 4. The dictionary data 5 is stored in an appropriate area depending on the type of data, like the storage unit 4. The dictionary data 5 may be stored in a removable auxiliary storage device.

  For the terminal control unit 6, a CPU (Central Processing Unit) is used, for example, an application processor or the like. The terminal control unit 6 reads out the control program stored in the read-only memory, the program stored in the auxiliary storage device, data, and the like and expands them on the RAM, and follows the expanded programs. The mobile phone 1 operates. The terminal control unit 6 controls each part around the mobile phone 1 by a program to realize a series of operations as the mobile phone 1.

  The mobile communication control unit 7 is a device that performs communication processing exemplified by a baseband LSI (Large Scale Integration). The mobile communication control unit 7 includes a wireless device 7-1 and a GPS processing unit 7-2. The wireless device 7-1 controls the wireless communication between the base station (wireless station), which is the terminal (relay point) of the telephone network (wired network), and the mobile phone 1, and the wireless state between the terminal controller 6 and the wireless device 7-1. Exchange information such as notifications. The GPS processing unit 7-2 processes the position information of the mobile phone 1. That is, the GPS processing unit 7-2 receives a signal from an overlying GPS (Global Positioning System) satellite and obtains the current position of the mobile phone 1.

  Here, each component of the cellular phone 1 according to the embodiment of the present invention described and illustrated discloses an outline of functions, and does not limit a physical configuration. That is, each component of the mobile phone 1 may be configured in an arbitrary unit, in a functionally or physically distributed or integrated form. For example, the terminal control unit 6 and the mobile communication control unit 7 can use devices integrated as one chip. Further, the function realized by the LSI may be realized by the control unit executing the program. Moreover, it is not limited to the mobile phone 1, For example, it is good also as a form implemented in PDA (Personal Digital Assistant) etc.

  Next, the operation of the mobile terminal device according to the embodiment of the present invention will be described in detail.

  FIG. 2 is a flowchart showing the operation of the mobile phone which is an example of the mobile terminal device according to the first embodiment of the present invention.

  With reference to FIG. 2, in the cellular phone 1, in order to improve the convenience of the text editing function, extended dictionary data is generated from the map data acquired by the location information confirmation function (database), and this is converted into Japanese. The flow of processing until it can be used during the conversion function will be described in detail.

  First, the terminal control unit 6 of the mobile phone 1 activates the position information confirmation function (step S101). Specifically, for example, an operation for confirming position information such as referring to a map of the current position on the display unit 3 of the mobile phone 1 is performed from the operation unit 2 by the user.

  By the way, since the mobile phone 1 always communicates with the base station for notifying its own location information, it confirms its own location information at a predetermined interval. The processing may be started in response to the communication with the base station. In this case, it is possible to support the input of proper nouns such as place names around the current position without any particular awareness of the user during Japanese conversion. Further, when the position information of the user is confirmed, if it is the same as the position confirmed immediately before, the process may be waited until the position information of the user changes without performing the subsequent processing.

  When the position information confirmation function is activated, the GPS processing unit 7-2 acquires the position information of the mobile phone 1, and the mobile communication control unit 7 displays the acquired position information by the wireless device 7-1. The data is transmitted to a map data server (not shown) via a network (step S102).

  The terminal control unit 6 acquires the map data corresponding to the location information transmitted as a response from the server and received by the mobile communication control unit 7 and displays it on the display unit 3 (step S103).

  FIG. 3 is a schematic diagram illustrating a display example of map data on the display unit of the mobile terminal device according to the embodiment of the present invention. Referring to FIG. 3, region-specific proper noun data (here, these are treated as place names in a broad sense) such as place names, stations, and schools as geographic information are displayed on the map.

  In a state in which the map data and proper noun data are displayed, the terminal control unit 6 determines whether or not the proper noun data needs to be databased in the extended dictionary. That is, the terminal control unit 6 determines whether or not there is an operation related to the use of proper noun data in the map data from the operation unit 2 by the user (step S104). For example, the terminal control unit 6 displays a menu “Register this range in the dictionary” on the display unit 3 together with the map data and proper noun data, and whether or not the user selects the menu from the operation unit 2. Judgment is made. For example, when the user inputs a character string related to the place name from the operation unit 2, the terminal control unit 6 automatically makes a determination such as an operation regarding use of proper noun data. It is good also as a form.

  When there is no operation related to the use of proper noun data (step S104; No), the process returns to step S102, and the process from the acquisition of the location information of the mobile phone 1 by the GPS processing unit 7-2 is repeated.

  On the other hand, when there is an operation related to the use of proper noun data (step S104; Yes), the terminal control unit 6 confirms whether or not the database from the map data to the extended dictionary can be implemented. That is, the terminal control unit 6 confirms whether or not proper noun data is included in the map data (step S105).

  If the proper noun data is not included in the map data (step S105; No), the terminal control unit 6 ends the process.

  On the other hand, if the proper noun data is included in the map data (step S105; Yes), the terminal control unit 6 determines that the proper noun data is a word written in kanji or the like and the corresponding reading. It is confirmed whether or not it contains kana information (step S106). In addition to the map data, the online map search service may provide reading kana information such as a list of town names and a list of station names. It is good also as a form using such information.

  FIG. 4 is a schematic diagram illustrating a configuration example of proper noun data on the storage unit of the mobile terminal device according to the embodiment of the present invention. Referring to FIG. 4, the configuration of proper noun data in which six records having three items of proper noun, reading kana, and classification are recorded is illustrated.

  As shown in FIG. 4, when the proper noun data includes the reading kana information (step S106; Yes), the terminal control unit 6 generates extended dictionary data in which the proper noun and the reading kana are set as a set ( Step S107).

  FIG. 5 is a schematic diagram illustrating another configuration example of proper noun data on the storage unit of the mobile terminal device according to the embodiment of the present invention. Referring to FIG. 5, the configuration of proper noun data in which six records having three items of proper noun, classification name, and classification are recorded is illustrated. The classification name here is the reading of the classification. For example, the classification names corresponding to the place names, stations, and schools that are classifications are Chimei, Eki, and Gakkou.

  As shown in FIG. 5, when there is no reading kana information corresponding to proper noun data (step S106; No), the terminal control unit 6 regards the classification names Chimei, Eki, Gakkou, etc. as reading kana. Above, the extended dictionary data which set the proper noun and the reading kana as a set is produced | generated (step S108).

  And the terminal control part 6 preserve | saves the expansion dictionary data produced | generated by step S107 or step S108 as a dictionary data at the time of Japanese conversion in a memory | storage part (extended dictionary 5-2 area | region in the dictionary data 5) (step). S109).

  The extended dictionary data stored in the extended dictionary 5-2 can be deleted by the user for unnecessary data, and additionally registered as long as the capacity of the extended dictionary 5-2 area in the dictionary data 5 permits. It is also possible.

  Through the above procedure, the mobile phone 1 can generate extended dictionary data including proper nouns such as place names from map data, and use the generated extended dictionary data as a function for Japanese conversion. .

  FIG. 6 is a schematic diagram illustrating an output example of Japanese conversion in the mobile terminal device according to the embodiment of the present invention. Referring to FIG. 6, as a candidate display for the input from the operation unit 2 named “Yama”, an output result of displaying “Yamanaka Station” registered as data in the extended dictionary 5-2 on the display unit 3 is shown. Has been obtained. As described above, when the proper noun data shown in FIG. 4 includes the reading kana information, the extended dictionary 5-2 corresponding to the character string input from the operation unit 2 at the time of Japanese conversion. The proper nouns can be output to the display unit 3 as a preferential candidate display. Since the proper noun data and the reading kana information in the map data are used to generate the extended dictionary 5-2, candidate display corresponding to an accurate reading input from the operation unit 2 is performed. For this reason, it is not necessary to use special input rules when inputting proper nouns.

  FIG. 7 is a schematic diagram illustrating another output example of Japanese conversion in the mobile terminal device according to the embodiment of the present invention. Referring to FIG. 7, “Yamanaka Station” and “Machinaka Station” registered as data in the extended dictionary 5-2 with the classification “Eki” as a candidate display for the input from the operation unit 2 with the classification name “Eki”. The output result is displayed on the display unit 3 with "" at the head. Thus, when there is no reading kana information in the proper noun data shown in FIG. 5, it corresponds to the classification (classification name) indicated by the character string input from the operation unit 2 at the time of Japanese conversion. The proper nouns in the extended dictionary 5-2 can be output to the display unit 3 as a preferential candidate display.

  Even when proper kana information is included in proper noun data, a classification name is registered in the extended dictionary data, and a proper noun corresponding to the classification name input from the operation unit 2 is preferentially displayed as a candidate. It is also good. As described above, since the terminal device side determines whether the proper noun data is included in the map data and whether the proper noun data includes the reading kana information, it is published from the server. Proper noun data can be acquired from various types of data.

  As described above, in the mobile terminal device having the Japanese language conversion function according to the first embodiment of the present invention, the extended dictionary is constructed from the proper noun data included in the map data acquired by the location information confirmation function, and the Japanese language conversion is performed. By using it as a conversion dictionary at the time, it is possible to realize Japanese conversion with high conversion efficiency reflecting the position information of the mobile terminal device and to improve the convenience of the character editing function.

(Second Embodiment)
Hereinafter, a portable terminal device, a Japanese language input system, and a Japanese language conversion method according to a second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  Since the configuration of the portable terminal device according to the second embodiment of the present invention is the same as that of the first embodiment, the description thereof is omitted. Here, the operation of the mobile terminal device according to the second embodiment of the present invention will be described in detail.

  FIG. 8A and FIG. 8B are flowcharts showing the operation of the mobile phone which is an example of the mobile terminal device according to the second embodiment of the present invention.

  Referring to FIG. 8A and FIG. 8B, when the proper noun data is not included in the map data, the extended dictionary data is acquired, and the processing until this is made available at the time of the Japanese conversion function The flow will be described in detail.

  In the first embodiment, when the proper noun data is not included in the map data (step S105; No), the extended dictionary data is not generated and the process is terminated. In the second embodiment, extended dictionary data is acquired even when proper noun data is not included in the map data, that is, when extended dictionary data cannot be generated with map data. To do. Therefore, here, the flow of processing after determining No in step S105 of the first embodiment (step S205 of the second embodiment) will be described. Therefore, Steps S201 to S209 are the same as Steps S101 to S109 in the first embodiment, and thus description thereof is omitted.

  First, when the proper noun data is not included in the map data acquired by the terminal control unit 6 of the mobile phone 1 (step S205; No), the terminal control unit 6 displays the location information of the mobile phone 1 as a map. It transmits to a server (not shown) via a network (not shown) to request acquisition of dictionary data (step S210).

  The server confirms whether or not it has dictionary data corresponding to the position information transmitted from the terminal control unit 6 (step S211).

  If there is no corresponding dictionary data in the server (step S211; No), the terminal control unit 6 ends the process.

  If the corresponding dictionary data is held in the server (step S211; Yes), the terminal control unit 6 receives the dictionary data from the server and stores it as expanded dictionary data at the time of Japanese conversion It is stored in (extended dictionary 5-2 area in dictionary data 5) (step S212).

  As in the first embodiment, the extended dictionary data stored in the extended dictionary 5-2 can be deleted by the user for unnecessary data, and the extended dictionary 5-2 area in the dictionary data 5 can be deleted. Additional registration is possible as the capacity permits.

  According to the above procedure, in the cellular phone 1, the extended dictionary data prepared on the server side can be used at the time of the Japanese conversion function, and the convenience of the text editing function can be improved.

  In the second embodiment described above, if the proper noun data is not included in the map data, the extended dictionary data prepared on the server side is downloaded and acquired, so that Japan in the mobile phone 1 Conversion during word conversion is performed efficiently.

(Third embodiment)
Hereinafter, a portable terminal device, a Japanese language input system, and a Japanese language conversion method according to a third embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  Since the configuration of the mobile terminal device according to the third embodiment of the present invention is the same as that of the first embodiment, the description thereof is omitted. Here, the operation of the mobile terminal device according to the third embodiment of the present invention will be described in detail.

  FIG. 9 is a flowchart showing the operation of the mobile phone as an example of the mobile terminal device according to the third embodiment of the present invention.

  Referring to FIG. 9, the conversion at the time of the Japanese conversion in the mobile phone 1 is efficiently performed without generating the extended dictionary data when the word of the proper noun data in the map data is not read and attached. The flow of processing until it is performed will be described in detail.

  In the first embodiment, when there is no reading kana information corresponding to proper noun data (step S106; No), extended dictionary data is generated with a classification name (step S108). In the third embodiment, even when a word of proper noun data is not read, the extended dictionary data is not generated, and the conversion at the time of Japanese conversion is efficiently performed using the basic dictionary 5-1. It is intended to be Therefore, here, the flow of processing after determining No in step S106 of the first embodiment (step S306 of the third embodiment) will be described. Therefore, Steps S301 to S307 and Step S308 are the same as Steps S101 to S107 and Step S109 of the first embodiment, and thus description thereof is omitted.

  First, when there is no reading kana information corresponding to the proper noun data in the map data acquired by the terminal control unit 6 of the mobile phone 1 (step S306; No), the terminal control unit 6 stores the basic dictionary 5-1. Whether there is a corresponding proper noun is searched (step S309).

  When the corresponding proper noun is not included in the basic dictionary 5-1 (step S309; No), the terminal control unit 6 ends the process.

  If the corresponding proper noun is included in the basic dictionary 5-1 (step S309; Yes), the terminal control unit 6 updates the priority of the corresponding proper noun conversion candidate to the highest level (step S310). ).

  In the third embodiment, extended dictionary data is not generated. However, this may be a form in which the corresponding proper noun in the searched basic dictionary 5-1 is stored in the extended dictionary 5-2 as extended dictionary data. In this case, the extended dictionary data stored in the extended dictionary 5-2 can be deleted by the user for unnecessary data as in the first embodiment, and the extended dictionary in the dictionary data 5 can be deleted. Additional registration is possible as long as the capacity of the 5-2 area permits.

  With the above procedure, the cellular phone 1 can increase the priority of the corresponding proper noun conversion candidates stored in the basic dictionary 5-1, thereby improving the convenience of the sentence editing function.

  In the third embodiment described above, when the reading kana information corresponding to the proper noun data in the map data is not included, the corresponding proper noun stored in the basic dictionary 5-1 is stored. By increasing the priority of conversion candidates, conversion at the time of Japanese conversion in the mobile phone 1 is efficiently performed.

  As described above, according to the present invention, in the mobile terminal device, the extended dictionary data is generated from the map data acquired by the position information confirmation function, and this is used for the Japanese conversion, thereby the character editing function. It is intended to improve convenience.

  In order to realize this, in the mobile terminal device according to the present invention, proper noun data obtained by combining proper nouns and reading kana is extracted from the map data acquired by the position information confirmation function, and the extracted proper noun data An extended dictionary is constructed from the above, and candidates are extracted from the basic dictionary and the extended dictionary at the time of Japanese conversion.

  More specifically, in the present invention, in a portable terminal device having a GPS function, a map information display function, and a Japanese language conversion function, proper noun information such as a place name and a facility name included in the map information is stored as extended dictionary data. Thus, by adding extended dictionary data to the built-in Japanese conversion dictionary data, input support at the time of Japanese conversion in character input is performed.

  As described above, in the present invention, the position information confirmation function using the GPS function mounted on many portable terminal devices is used as means for specifying the corresponding area. For this reason, this invention is applicable, without adding a new apparatus to a portable terminal device.

  In addition, a scene where a proper noun peculiar to a region is actually used is assumed to be a case where the user visits the corresponding region or performs communication specialized for the region. For this reason, it is considered appropriate for a portable terminal device not to have detailed level proper noun dictionary data for all regions in the same way, but to have detailed proper nouns as dictionary data only in the corresponding region. It is done.

  In that respect, in the portable terminal device according to the present invention, it is not necessary to have a database regarding proper names such as place names and facility names in the terminal, and an optimum conversion result can be obtained without registering a large number of proper names in the database. And has the effect of being less susceptible to memory capacity restrictions. In addition, since the in-terminal database can be updated, the latest proper noun can be handled.

  Further, in the present invention, it is not necessary for CP (Contents Provider) to prepare a large number of dictionary data other than map data, and the burden of performing maintenance does not increase. In the present invention, it is not necessary for the map service user to acquire a large number of dictionary data separately from the map data, and there is no occurrence of extra communication or charging.

  The embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

  A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

(Supplementary Note 1) A mobile communication control unit that receives map data including a place name and a reading kana corresponding to the place name;
A terminal control unit for determining whether the map data includes the place name and the reading kana;
An extended dictionary for storing the kana-kanji conversion data,
The terminal control unit is configured to generate the kana-kanji conversion data in which the place name and the reading kana are paired from the map data.

(Appendix 2) The mobile terminal device according to Appendix 1,
Furthermore, an operation unit for inputting a character string;
And a display section showing the output result,
The terminal control unit
When the character string included in the reading kana is input in the operation unit, the portable terminal device refers to the extended dictionary and outputs the place name as the character string conversion candidate to the display unit.

(Supplementary note 3) The mobile terminal device according to Supplementary note 1 or 2, wherein
The mobile communication control unit
Including a global positioning system that obtains the current location of the terminal,
A mobile terminal device that receives the map data corresponding to the current position.

(Appendix 4) The mobile terminal device according to any one of appendices 1 to 3,
The map data is
It further includes a classification name indicating the type to which the place name belongs,
The terminal control unit
The kana-kanji conversion data in which the place name and the classification name are paired from the map data is generated and stored in the extended dictionary. When the character string is input in the operation unit, the extended dictionary is referred to. When the classification name includes the character string, the portable terminal device outputs the place name to the display unit as a conversion candidate for the character string.

(Appendix 5) The mobile terminal device according to any one of appendices 1 to 4,
A portable terminal device in which the mobile communication control unit receives the kana-kanji conversion data when the terminal control unit determines that the place name and the reading kana are not included in the map data.

(Appendix 6) The mobile terminal device according to any one of appendices 1 to 5,
And a basic dictionary for storing other kana-kanji conversion data in which a word and another reading kana corresponding to the word are paired,
The terminal control unit
When the place name is included in the basic dictionary and the character string included in the other reading kana is input in the operation unit, the place name is referred to as the character string conversion candidate with reference to the basic dictionary. Is output to the display unit.

(Appendix 7) The terminal control unit of the mobile terminal device determines whether the map data includes a place name and a reading kana corresponding to the place name;
A mobile communication control unit of the mobile terminal device receiving the map data;
The terminal control unit generating kana-kanji conversion data in which the place name and the reading kana are paired;
A method of generating a kana-kanji conversion dictionary, wherein the terminal control unit stores the kana-kanji conversion data in an extended dictionary of the mobile terminal device.

(Appendix 8) A method for generating a kana-kanji conversion dictionary according to appendix 7,
The mobile communication control unit including the global positioning system acquires the current position of the terminal;
A method for generating a kana-kanji conversion dictionary, further comprising: receiving the map data corresponding to the current position.

(Supplementary note 9) A method for generating a kana-kanji conversion dictionary according to supplementary note 7 or 8,
The step of determining whether the terminal control unit includes the place name and the reading kana in the map data,
And determining whether the map data includes a classification name indicating a type to which the place name belongs,
The step of generating the kana-kanji conversion data in which the place name and the reading kana are paired,
The method for generating a kana-kanji conversion dictionary further includes the step of generating the kana-kanji conversion data in which the place name and the classification name are paired.

(Appendix 10) A method for generating a kana-kanji conversion dictionary according to any one of appendices 7 to 9,
The step of generating the kana-kanji conversion data in which the place name and the reading kana are paired,
The terminal control unit reads the place name and the reading kana from the map data received by the mobile communication control unit of the mobile terminal device in response to an input from the operation unit of the mobile terminal device. In addition, a method for generating a dictionary for kana-kanji conversion.

(Additional remark 11) The terminal control part of a portable terminal device determines whether the map data contains the place name and the reading kana corresponding to the place name,
A mobile communication control unit of the mobile terminal device receiving the map data;
The terminal control unit generating kana-kanji conversion data in which the place name and the reading kana are paired;
The terminal control unit storing the kana-kanji conversion data in an extended dictionary of the mobile terminal device;
The operation unit of the mobile terminal device inputs the character string included in the reading kana,
The terminal control unit includes the step of referring to the extended dictionary and outputting the place name to the display unit of the mobile terminal device as a conversion candidate of the character string.

(Supplementary note 12) The kana-kanji conversion method according to supplementary note 11,
The step of determining whether the terminal control unit includes the place name and the reading kana in the map data,
And determining whether the map data includes a classification name indicating a type to which the place name belongs,
The step of generating the kana-kanji conversion data in which the place name and the reading kana are paired,
Furthermore, the step of generating the kana-kanji conversion data in which the place name and the classification name are paired,
The operation unit inputs the character string included in the reading kana,
The kana-kanji conversion method further includes a step in which the operation unit inputs the character string included in the classification name.

(Supplementary note 13) The kana-kanji conversion method according to supplementary note 11 or 12,
The terminal control unit refers to a basic dictionary which is another kana-kanji conversion data in which a word further provided in the mobile terminal device and another reading kana corresponding to the word are paired;
The operation unit inputs the character string included in the other reading kana;
The terminal control unit further includes a step of referring to the basic dictionary and outputting the place name to the display unit as the character string conversion candidate when the place name is included in the basic dictionary. .

  (Supplementary note 14) A program for causing a computer to execute the method according to any one of supplementary notes 7 to 13.

  (Supplementary Note 15) A storage unit that stores the program according to Supplementary Note 14.

DESCRIPTION OF SYMBOLS 1 Mobile telephone 2 Operation part 3 Display part 4 Memory | storage part 5 Dictionary data 5-1 Basic dictionary 5-2 Extended dictionary 6 Terminal control part 7 Mobile communication control part 7-1 Radio | wireless apparatus 7-2 GPS processing part

Claims (9)

A mobile communication control unit that receives map data including a place name and a reading kana corresponding to the place name;
A terminal control unit for determining whether the map data includes the place name and the reading kana;
An extended dictionary for storing the kana-kanji conversion data,
The terminal control unit is configured to generate the kana-kanji conversion data in which the place name and the reading kana are paired from the map data. The mobile terminal device according to claim 1,
Furthermore, an operation unit for inputting a character string;
A display unit showing the output result,
The terminal control unit
When the character string included in the reading kana is input in the operation unit, the portable terminal device refers to the extended dictionary and outputs the place name as the character string conversion candidate to the display unit. The mobile terminal device according to claim 1 or 2,
The mobile communication control unit
Including a global positioning system that obtains the current location of the terminal,
A mobile terminal device that receives the map data corresponding to the current position. It is a portable terminal device of any one of Claims 1 thru | or 3, Comprising:
The map data is
It further includes a classification name indicating the type to which the place name belongs,
The terminal control unit
The kana-kanji conversion data in which the place name and the classification name are paired from the map data is generated and stored in the extended dictionary. When the character string is input in the operation unit, the extended dictionary is referred to. When the classification name includes the character string, the portable terminal device outputs the place name to the display unit as a conversion candidate for the character string. The mobile terminal device according to any one of claims 1 to 4,
A portable terminal device in which the mobile communication control unit receives the kana-kanji conversion data when the terminal control unit determines that the place name and the reading kana are not included in the map data. The mobile terminal device according to any one of claims 1 to 5,
And a basic dictionary for storing other kana-kanji conversion data in which a word and another reading kana corresponding to the word are paired,
The terminal control unit
When the place name is included in the basic dictionary and the character string included in the other reading kana is input in the operation unit, the place name is referred to as the character string conversion candidate with reference to the basic dictionary. Is output to the display unit. The terminal control unit of the mobile terminal device determining whether the map data includes a place name and a reading kana corresponding to the place name;
A mobile communication control unit of the mobile terminal device receiving the map data;
The terminal control unit generating kana-kanji conversion data in which the place name and the reading kana are paired;
A method of generating a kana-kanji conversion dictionary, wherein the terminal control unit includes the step of storing the kana-kanji conversion data in an extended dictionary of the mobile terminal device. The terminal control unit of the mobile terminal device determining whether the map data includes a place name and a reading kana corresponding to the place name;
A mobile communication control unit of the mobile terminal device receiving the map data;
The terminal control unit generating kana-kanji conversion data in which the place name and the reading kana are paired;
The terminal control unit storing the kana-kanji conversion data in an extended dictionary of the mobile terminal device;
The operation unit of the mobile terminal device inputs the character string included in the reading kana,
The terminal control unit includes a step of referring to the extended dictionary and outputting the place name to the display unit of the portable terminal device as a conversion candidate of the character string. A program for causing a computer to execute the method according to claim 7 or 8 .

Images