JP3267202B2 - Vehicle navigation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular navigation apparatus for retrieving a registered point such as a destination or a passing point by reading a name of a registered point or inputting a character string of the name.

[0002]

2. Description of the Related Art In a conventional navigation device,
When searching for a point such as a destination or a passing point, it is possible to input 50 sounds. In advance, in the data of the registered point stored in the storage means, the reading of the name of the shop or facility is stored together with the coordinates of the point. Therefore, if the user knows the name of the point desired, the user can input the reading to display the desired point on the map, set the point as a destination or a passing point, and set a route. Guidance can be provided. In addition, when searching for data by inputting the reading, the user can search by inputting only a part of the name without having to remember the entire name. Then, a list of registered points corresponding to the input reading or having a name including the reading is displayed in a list so that the user can select it.

[0003]

The storage medium of the above-mentioned conventional apparatus has an improved storage capacity, and can store an enormous number of locations where the names of shops and facilities are registered together with the coordinates as described above. Became. On the other hand, since the amount of information is large especially when searching the information of the whole country at a time, if the user does not input the official name as accurately as possible, the number of spot names extracted and displayed in a list becomes extremely large. In particular,
When a user enters and searches the names of cafes, beauty salons, and other frequently used shops, hundreds of places with the same name or parts of the same name with the same name are extracted nationwide. For example, when displaying a list, it is conceivable to add the location (prefecture and municipal level) together with the name. However, even if you know the location to some extent, the location of the desired point is also written from hundreds of items. It is not easy to find what you have.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an easy-to-use vehicle navigation device which facilitates retrieval by reading a name of a registered point or inputting a character string of the name. I do.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a vehicle navigation apparatus capable of retrieving a registered point by inputting a reading of a registered point name and storing information relating to reading of each registered point as registered point information. Information storage means, input means for inputting the reading of the registered point, conversion means for converting the reading input by the input means into a predetermined character string, and a character selected from the converted character string Search means for searching for a registered point of a name including a column from the registered points stored in the information storage means, and display means for displaying a list of converted character strings and a list of the searched registered points sequentially on a screen And a key to return to the list display screen of the converted character string from the list display screen of the searched registered points, after displaying the list of registered points on the display means, Ri return to the list display screen of the converted character string, characterized in that to allow search select another character string.

Further, the present invention provides a vehicular navigation apparatus which inputs a reading of the name of a registered point so that the corresponding registered point can be searched and displays a map including the searched registered point. Information storage means for storing information relating to the reading of each registered point and positional coordinates as information, input means for inputting the reading of the registered point, and conversion means for converting the reading input by the input means into a predetermined character string Searching means for searching a registered point of the name including the character string selected from the converted character strings from the registered points stored in the information storage means; and a list of the converted character strings. A list of the registered points is sequentially displayed on the screen, and when one of the registered points displayed in the list is selected, the position coordinates of the registered points stored in the storage unit are read out. Display means for displaying a map based on the position coordinates, and a key for returning to the list display screen of the converted character string from the list display screen of the searched registered points, wherein the list of registered points is displayed on the display means. Thereafter, the display is returned to the list display screen of the character string converted by the key, and another character string is selected so that the character string can be searched again.

[0007] The present invention is also directed to a vehicle for performing route guidance by inputting a reading of the name of a registered point so that the corresponding registered point can be searched, and setting the searched registered point as a destination or a passing point. In the navigation device, information storage means for storing information on the reading of each registered point and position coordinates as map information and registered point information, input means for inputting the reading of the registered point, and reading the input inputted by the input means. Converting means for converting the character string into a predetermined character string; searching means for searching a registered point of a name including the character string selected from the converted character string from the registered points stored in the information storage means; Display means for sequentially displaying a list of registered character strings, a list of searched registration points by screen transition, and current position detection means for detecting the current position of the vehicle,
When one of the registered points displayed in the list is selected, the position coordinates of the registered point stored in the storage means are read out, and the position coordinates are detected based on the current position detected as the destination or the passing point, Route guidance means for performing route guidance,
A key for returning to the list display screen of the converted character string from the list display screen of the searched registered points, displaying a list of the registered points on the display unit, and then displaying a list of the character strings converted by the key Returning to the screen, another character string is selected to enable re-search.

[0008]

Embodiments of the present invention will be described below. FIG. 1 is a diagram showing one embodiment of a vehicle navigation device to which the present invention is applied. As shown in FIG. 1, a vehicle navigation device according to the present invention includes an input / output device 1 for inputting and outputting information relating to route guidance, a current position detecting device 2 for detecting information relating to the current position of the vehicle, and a route calculation device. Information storage device 3 in which navigation data and display / voice guidance data and programs (applications and / or OS) necessary for route guidance are recorded, display / voice guidance process necessary for route search processing and route guidance And a central processing unit 4 for controlling the entire system. First, each configuration will be described.

The input / output device 1 instructs the central processing unit 4 to perform a navigation process according to the driver's intention so that the driver can input a destination or output guidance information by voice and / or screen when necessary. And a function to print out the processed data and the like. As means for realizing the function, the input unit includes a touch switch 11 and an operation switch for inputting a destination as a telephone number or coordinates on a map, and for requesting route guidance. Of course, an input device such as a remote controller may be used. In the output unit, the input data is displayed on the screen, and the route guidance is automatically displayed on the screen in response to the driver's request. The display 12 stores the data processed by the central processing unit 4 and the information storage device 3. And a speaker 16 for outputting route guidance by voice.

Here, a voice recognition device for enabling voice input and a recording card reading device for reading data recorded on an IC card or a magnetic card can be added. In addition, an information center that stores data necessary for navigation and provides information via a communication line at the request of the driver, an electronic notebook that stores driver-specific data such as map data and destination data in advance, etc. A data communication device for exchanging data with another information source can also be added.

The display 12 comprises a color CRT or a color liquid crystal display, and is necessary for navigation such as a route setting screen, a section map screen, an intersection map screen based on map data and guidance data processed by the central processing unit 4. In addition to outputting all screens in color display, buttons for setting route guidance, performing guidance during route guidance, and switching screens are displayed on this screen. In particular, the passing intersection information such as the passing intersection name is displayed in color in a pop-up on the section map screen at any time.

The display 12 is provided in an instrument panel near the driver's seat, and the driver can check the current position of the vehicle by looking at the section map and obtain information on the route from now on. it can. The display 12 is provided with a touch switch 11 corresponding to the display of the function button, and is configured to execute the above-described operation based on a signal input by touching the button. The input signal generating means including the button and the touch switch constitutes an input unit, but a detailed description thereof is omitted here.

The current position detecting device 2 detects or receives information on the current position of the vehicle, and includes an absolute direction sensor 24 composed of a geomagnetic sensor and the like, and a relative direction sensor composed of a steering sensor, a gyro and the like. 2
5. Distance sensor 2 for detecting running distance from the number of rotations of wheels
6. It is composed of a GPS receiving device 21 using a satellite navigation system (GPS) and a VICS receiving device 22 or a data transmitting / receiving device 23 which is traffic information acquiring means. The VICS receiving device 22 performs FM multiplexing of road traffic information,
The data transmission / reception device 23 is, for example, a mobile phone or a personal computer, and is received by a radio information beacon or an optical beacon.
IS) for exchanging information necessary for navigation.

The information storage device 3 is an external storage device that stores navigation programs and data, and is, for example, a CD-ROM. The program is a program for performing a process such as a route search, a processing program shown in the flowchart described in the present embodiment, a program for performing a display output control necessary for route guidance, a program for performing a voice output control required for voice guidance, and Necessary data, and display information data necessary for route guidance and map display are stored. Data includes map data, search data,
Guidance data, map matching data, destination data,
It consists of files such as registered point data and stores all data necessary for the navigation device. The present invention is also applicable to a type in which only data is stored in a CD-ROM and a program is stored in a central processing unit.

The central processing unit 4 includes a CPU 40 for executing various arithmetic processing, a flash memory 41 for reading and storing programs from the CD-ROM of the information storage device 3,
ROM 42 storing a program (program reading means) for performing program check and update processing of flash memory 41, set point coordinates of destination, road name code No. RAM 43 for temporarily storing searched route guidance information such as searched data and data during arithmetic processing, image memory 44 for storing image data used for screen display on a display, and display output control signals from CPU 40. An image processor 45 which retrieves image data from the image memory 44, performs image processing on the image data, and outputs the processed image to a display
Information storage device 3 based on an audio output control signal from the PU
, A voice, a phrase, a set of sentences, sounds, and the like read from the loudspeaker 1
6, a communication interface 47 for exchanging input / output data by communication, a sensor input interface 48 for receiving a sensor signal of the current position detecting device 2, and a date and time for writing date and time in internal diagnostic information. A clock 49 and the like are provided. Here, route guidance is performed by screen display and voice output, and the presence or absence of voice output is configured to be selectable by the driver.

Note that a program for performing the above-described update processing may be stored in an external storage device. The program according to the present invention and other programs for executing navigation may all be stored in a CD-ROM as an external storage medium, or some or all of these programs may be stored in the ROM 42 of the main unit. Good.

The data and programs stored in the external storage medium are input as external signals to the central processing unit of the navigation apparatus main body and are subjected to arithmetic processing, thereby realizing various navigation functions.

The navigation device according to the present invention has a relatively large capacity flash memory 41 for reading a program from the CD-ROM of the external storage device, as described above.
A small-capacity ROM 42 storing a program (program reading means) for performing a CD boot process is built in.
The flash memory 41 is a non-volatile storage unit that retains stored information even when the power is turned off. Then, as a start-up process of the CD, the program in the ROM 42 which is a program reading means is started, the program stored in the flash memory 41 is checked, and disk management information of the CD-ROM of the information storage device 3 is read. The program loading process (update process)
The determination is performed based on this information and the state of the flash memory 41.

FIG. 2 shows a configuration example of main data files stored in the CD-ROM 3 shown in FIG.
FIG. 2A shows a guide road data file in which data necessary for calculating a route and performing route guidance by the route calculating means is stored. For each of the number n of roads, a road number, a length, a road It consists of address and size data of attribute data and shape data, and address and size of guidance data. The road number is set for each direction (outbound and return) for each road between the branch points. As shown in FIG. 2B, when each road is divided into a plurality of nodes (nodes), the shape data has coordinate data including east longitude and north latitude for each of the number m of nodes.

As shown in FIG. 2C, the guide data includes an intersection (or branch point) name, caution data, road name data, an address and size of road name data, and an address and size of destination data. Consists of data.

As shown in FIG. 2D, the destination data includes a destination road number, a destination name, an address of destination name voice data, a size and a destination direction data, and travel guidance data. The destination name includes a direction name. In addition, destination direction data is invalid (do not use destination direction data), unnecessary (do not guide), go straight,
It is data indicating information on the right direction, diagonally right direction, right returning direction, left direction, diagonally left direction, and left returning direction.

Next, the navigation processing of the present invention will be described. FIG. 3 is a diagram for explaining the flow of the entire system of the navigation device according to the present invention. The CPU 40 of the central processing unit 4 reads the program from the information storage device 3 and starts the route guidance program. Target names such as place names and facility names, telephone numbers and addresses, registered locations,
A destination is set using a road name or the like (step S1). Next, the current position is detected by the current position detection device 2 and a map around the current position is displayed around the current position. It is displayed (step S2), and a route search from the current position to the destination is performed (step S3). When the route is determined, the route guidance / display is repeated until the vehicle arrives at the destination while tracking the current position by the current position detecting device 2 (step S4). If a detour setting is input before arriving at the destination, a search area is set, a re-search is performed in the search area, and route guidance is repeated until the vehicle arrives at the destination.

Next, the data structure for the Japanese syllabary input according to the present invention will be described. FIG. 4 is a diagram showing a registration point data structure. The registered point data stores coordinates of the registered point, registered point name data, registered point address, road number facing the registered point, and the like. Registration point name data is 50
Registered point readings are stored to enable input by sound, and kanji is displayed as a registered point list when searching,
Alternatively, for those displayed in katakana, kanji or katakana readings are stored. Also, the registration point address data is
The locations of the registered points are stored in a regional hierarchy, such as prefectures, cities, and towns.

FIG. 5 is a view for explaining another example of the registered point data structure. The data of the whole country is stored in one CD and 5
When a zero sound is input, the search takes a long time because data nationwide is to be searched. Therefore, in the present embodiment, the whole country is divided into several regions, and the divided region information is referred to as No. Tohoku, Kanto, and Kansai versions, for example. 1
6 to limit the search target. In this case, no. In all of the CDs 1 to 6, information on the number of the CD on which information on each prefecture is recorded is stored. For example, no. No. 2 CD (for example, Kanto version) is running. If a prefecture (eg, Aichi prefecture in the Chubu region) that is not recorded on the CD No. 2 is selected, the CD number (eg, No. 3) in which the selected prefecture is recorded is stored. , The CD
No. Search for 3 and exchange for it. These processes are C
This is performed by the CPU 40 by reading the disk management information and the like of D. The contents of the CD are No. 3 (Chubu district version)
As an example, as shown in the figure, the number of registered points (number of prefectures N), m city in Aichi prefecture, l town in Anjo city, and k location in Aioi town are hierarchical. Is stored in

Next, the Japanese syllabary input (reading the name,
Or input using a name character string) will be described. FIG. 6 shows a menu screen for setting a destination. The screen is constituted by a touch panel. When a displayed selection item is touched, the item is selected, and a process corresponding to the selected item or a menu display of the next hierarchy is executed. On the displayed destination setting menu screen, select the phone number, address, Japanese syllabary, facility name (golf course, amusement park, other facilities, etc.), registration point (home, memory point, previous departure place, etc.) It is displayed as an item. Next, an example of an input method when the reading of the kanji of the destination point name is known will be described with reference to FIGS.
When "50 sounds" is selected in FIG. 6, the screen changes to a 50 sounds input screen as shown in FIG. In the Japanese syllabary input screen, for example, when the name is read in the form of “A”, “SA”, “HI” and the Japanese syllabary, and then the “Conversion key” is pressed, as shown in FIG. Is converted to a character string such as Kanji, Katakana, Hiragana, English word, etc., and the converted character string is displayed in a list. Is displayed. Here, when the "return" key is pressed, the display returns to the Japanese syllabary input screen, where the Japanese syllabary following the "Asahi" is input in the Japanese syllabary, or the Japanese syllabary is corrected with the "backward" key. Select the target "Asahi" from the character strings displayed in the list, and click "Recruit"
When the key is pressed, the kanji character "Asahi" is determined, and the screen returns to the Japanese syllabary input screen, where the next character following "Asahi" can be input in the Japanese syllabary. Here, if a “List” key is pressed or a remote control operation or the like is performed to search for a registration point including the character string “Asahi” without performing the next input, as shown in FIG. A list of registered points including the character string "Asahi" is displayed. When "Asahi Confectionery" is selected from the list, a map centering on that point is displayed.

After displaying a map centering on the selected point on the display screen, not shown, for example, when a "set" key is displayed and the key is operated, it is set as a destination or a passing point. Then, a route to the set destination or passing point is searched for by the route calculation means, and route guidance is performed by the route guidance means.

Next, an example of an input method in a case where the kanji of the destination point name is known but the way of reading the kanji is not understood will be described with reference to FIGS. For example, when searching for a place name "Anjo Confectionery" on the Japanese syllabary input screen for setting the destination, the kanji reading of "Anjo Confectionery" is not known, so the kanji characters are input one by one. That is, FIG.
Enter "A" and "N" as shown in
When the "conversion" key is pressed to convert the character string, as shown in FIG. 11, the character string is converted into a character string such as kanji, katakana, hiragana, an English word, and the converted character string is displayed in a list. Select the kanji “A” from the list,
Press the "Adopt" key and the kanji "A" is confirmed and 5
The screen returns to the zero sound input screen. Next, as shown in FIG.
Enter "shi" and "ro" and press the "Convert" key. The entered character string "shiro" will be displayed in kanji, katakana, hiragana,
It is converted to a character string such as an English word, and the converted character string is displayed in a list. When the kanji character "Castle" is selected from those displayed in the list and the "Adopt" key is pressed, the kanji character "Castle" is determined. As shown in FIG. 13, the screen returns to the Japanese syllabary input screen. When the character string "Anjo" is determined and the "List" key is pressed here, a registration point including the kanji "Anjo" is displayed. When you select the desired "Anjo Confectionery" from the registered locations displayed in the list, a map centering on that location is displayed, and a "Set" key (not shown) is displayed. Set as a point. The route to the set destination or the passing point is searched by the route calculation means, and the route guidance means performs route guidance. As described above, the user can input the destination point even when the user understands the kanji “Anjo” but does not understand how to read.

Next, FIG.
4 will be described. In the menu screen of FIG.
When "sound" is selected, the Japanese syllabary search process starts. 5
When the reading of the name is input by the 0 sound input and the conversion key is pressed, it is converted into a character string corresponding to the input reading, and the converted character string is output as a list (steps 11, 12, and 1).
5) When the target character string is selected and the adoption key is pressed, the selected character string is determined and displayed (step 1).
6, 18), waiting for the input of the Japanese syllabary. If there is no input of the Japanese syllabary, or if the conversion key is not pressed after the input of the Japanese syllabary, it is determined whether or not the list key is pressed (step 13). Is output (step 19). Here, when a registration point is selected, the coordinates of the selected registration point are acquired, and a map is displayed centering on the acquired coordinates (steps 21 to 23). If the registration point is not selected in step 21 and the return key is pressed, the flow returns to step 15 to output a list of character strings corresponding to the reading. In step 16, if the return key is pressed without pressing the adoption key, and if the backward key is pressed without pressing the list key in step 13, the system waits for the input of the Japanese syllabary.

In this processing flow, first, a genre of a destination such as a golf course, an amusement park, a movie theater, a hotel, etc. is selected and input, and then a syllabary search processing is performed, or after a list key is pressed, If the genre is selected and input before outputting the registration point list, the search target can be limited, and the search processing can be shortened. FIG.
FIG. 7 is a diagram showing a genre search processing flow. In the genre search process, when a genre is specified, a genre name such as a golf course, an amusement park, a movie theater, a hotel, or a public facility is output in a list, and when a genre is selected from the list, the genre is included in the selected genre. Extract the registration point.

Next, referring to FIGS. 16 to 19, a description will be given of a search for a registered location by using both the Japanese syllabary input and the area designation. When "50 sounds" is selected in FIG. 6, the screen changes to a 50 sounds input screen as shown in FIG. In the Japanese syllabary input screen, for example, when the name is read in the form of “A”, “SA”, “HI” and the Japanese syllabary, and then the “Conversion key” is pressed, FIG.
As shown in, the entered "Asahi" is converted to Kanji, Katakana,
The converted character strings are converted into character strings such as hiragana and English words, and a list of the converted character strings is displayed. At this time, the fact that 28 lists having the reading of “Asahi” have been searched is displayed as “the number of searches”. Pressing the "Return" key returns to the Japanese syllabary input screen.
Use the "reverse" key to correct the reading. Select the desired "Asahi" from the character strings displayed in the list and press the "Adopt" key to confirm the kanji "Asahi" and return to the Japanese syllabary input screen to enter "Asahi" It becomes possible to input the next 50 characters of the next character, and it is displayed that there are, for example, 2,689 remaining lists of registered points including the reading of "Asahi".

When the "prefecture selection" key for area designation is pressed, the screen is changed to a prefecture name setting screen as shown in FIG.
When the screen is scrolled and "Aichi" is selected as the target prefecture name, for example, the remaining list is displayed as 1000, and when the "Municipality selection" key is further pressed, the screen changes to the municipal setting screen. On the municipalities setting screen, if the user selects the desired “Anjo City” while scrolling the screen, for example, the remaining list number is displayed as 10, and when the “list” key is pressed here, the “Asahi” is displayed as shown in FIG. Is displayed in a list, and when "Asahi Confectionery" is selected from the list displayed while scrolling the screen, a map centering on the selected point is displayed. In this way, by inputting the pronunciation in the Japanese syllabary and further specifying the area, the search target can be further limited and the search for the registered point can be performed effectively.

FIG. 20 shows a process of displaying the number of remaining lists when the Japanese syllabary is input. When the reading is input by the Japanese syllabary on the input screen, the search processing of the number of remaining lists is performed every time one character is input. When the number of lists is more than 1, the number of remaining lists is displayed on the screen. Then, it is determined whether or not the list display key has been operated, and it is determined whether to perform the list display processing or to continue the input processing. If the list display key is not operated, input processing is performed, and if the list display key is operated, list display is instructed and all applicable names are displayed, and the target name is searched for and selected. Then, a map around the selected point is displayed. When the number of lists becomes one, a map centering on the selected point is displayed automatically or by key operation.

FIG. 21 shows a process of searching for the number of remaining lists by head-on comparison. If there is an input of the Japanese syllabary, the name list is searched, and the prefix of the input reading and the name of the name list are compared with each other. Until the search for all data is completed, and outputs the number of lists when the search for all data is completed.

It should be noted that the present invention is not limited to the head-match comparison,
It is also possible to search by inputting a name other than the official name. For example, as shown in FIG. 22, the name of the destination data is divided into words, and the divided words include a place name, a person name, a classification name (school, city hall, station, park, hotel, etc.) Check. For example, if it is known that the place names include the place names of Tokyo and Ryogoku, it is divided into Tokyo Disneyland: Tokyo / Disneyland Ryogoku Kokugikan: Ryogoku / Kokugikan . Next, assuming that the search can be performed from the beginning of each of the divided words, all the name lists in which the order of the words is changed are created. For example, Tokyo Disneyland registered multiple readings for one formal name, such as Tokyo University Land Ryogoku Land Ryogoku Kokugikan, and Ryokugoku Kokugikan.
The list of names is stored in the CD-ROM. 1
When storing a plurality of readings for one formal name on a CD-ROM, the readings are sorted in the reading order. Thus, the CD-R
FIG. 23 shows an example of the name list stored in the OM. FIG.
As can be seen from the formal name "Ryogoku Kokugikan",
Two readings, "Ryogoku Kokugikan" and "Kokugikan Ryogoku" are registered, and for the official name "Tokyo Disneyland", the two readings "Tokyo Destiny Land" and "Depo" `` Zuniland Tokyo '' is registered, so even if you input with a non-official name such as `` Kokugikan Ryogoku '' or `` Dezuni Land Tokyo '', you can enter `` Ryogoku Kokugikan '', `` Tokyo Disneyland '' Is searchable. In addition, since a plurality of readings are stored in the reading order on the CD-ROM, it is possible to perform a high-speed search with a head-on match. When the remaining number is displayed at the time of input, the number is displayed in the number registered in the name list. In addition, the readings in the list are registered except for the voiced dots, and, for example, by identifying “ga” and “oka”, it is possible to reduce the number of characters input and selected by the user.

When setting the target name, if the input target name includes a place name, a person name, and a classification name, the word is divided into words and the place name, the person name, and the classification name are excluded.
It is also conceivable to create a name list by performing a partial match comparison between “Kokugikan” and “Disneyland” and target name data and searching.

In the above-described embodiment, the registration point data is stored in a plurality of CDs in each area.
Of course, all data is stored on one CD and 50
You may make it input a sound. Further, in the above-described embodiment, the description has been given of the Japanese syllabary input (input of the pronunciation), but the same applies to a character string input such as an English alphabet input.

[0037]

As described above, according to the present invention, the search target can be limited by converting the reading at the input point into a character string such as a kanji and specifying the character string desired by the user. The following effects can be obtained.

It is possible to reduce the search processing time when searching for the point data corresponding to the reading of the Japanese syllabary. Since the point list corresponding to the input reading is displayed in a limited manner, the user can easily select the point list.

Since the registered points including the selected character string are displayed in a list, it is possible to search even if the kanji is known but the reading is not understood. By making it possible to select the genre of the target point, or by using the area designation together, it is possible to further limit the search targets.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of a vehicle navigation device to which the present invention is applied.

FIG. 2 is a diagram showing a road data file.

FIG. 3 is a diagram for explaining the flow of the entire system of the navigation device according to the present invention.

FIG. 4 is a diagram showing a registration point data structure.

FIG. 5 is a diagram illustrating an example of a data structure.

FIG. 6 is a diagram showing a destination setting menu screen and a transition from the menu screen to a Japanese syllabary input screen.

FIG. 7 is a diagram showing a Japanese syllabary input screen.

FIG. 8 is a transition diagram of a screen in which the reading of “Asahi” has been converted and adopted.

FIG. 9 is a diagram showing a screen on which a destination point “Asahi Confectionery” is selected.

FIG. 10 is a diagram showing a Japanese syllabary input screen.

FIG. 11 is an explanatory diagram of an input method in a case where the reading of kanji is not understood.

FIG. 12 is an explanatory diagram of an input method in a case where the reading of kanji is not understood.

FIG. 13 is a diagram showing a destination selection screen.

FIG. 14 is a diagram showing a Japanese syllabary search processing flow.

FIG. 15 is a diagram showing a genre search processing flow.

FIG. 16 is a diagram showing a screen on which a reading of “Jyun” is input.

FIG. 17 is a diagram showing a transition from a list display screen having the reading “Jiyun” to a Japanese syllabary input screen.

FIG. 18 is a transition diagram from a municipal selection screen to a Japanese syllabary input screen.

FIG. 19 is a diagram showing a destination point selection screen.

FIG. 20 is a diagram illustrating a remaining list number display process.

FIG. 21 is a diagram showing a search process of the number of remaining lists.

FIG. 22 is a diagram illustrating search processing by word division.

FIG. 23 is a diagram showing a name list.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 input / output device, 2 current position detecting device, 3 information storage device, 4 central processing device, 11 touch switch, 12
... Display, 13 ... Printer, 16 ... Speaker, 2
1 ... GPS receiver, 22 ... beacon receiver, 23 ...
Data transmission / reception device, 40 CPU, 41 flash memory, 42 ROM, 43 RAM, 44 image memory, 45 image processor, 46 audio processor, 4
7: Communication interface, 48: Sensor input interface, 49: Clock.

Claims (5)

(57) [Claims] 1. A vehicle navigation device capable of retrieving a registration point by inputting a reading of a name of a registration point, an information storage means for storing information relating to reading of each registration point as registration point information, Input means for inputting a reading of a point; converting means for converting the reading input by the input means into a predetermined character string; and a registration point of a name including a character string selected from the converted character strings. Searching means for searching from the registered points stored in the information storage means; display means for sequentially displaying a list of converted character strings and a list of searched registered points by screen transition; comprising a key back from the list display screen to the list display screen of the converted character string, and after displaying the list of registered point on the display unit, converted by the key character List returned to the display screen, vehicle navigation system being characterized in that the re-search by selecting another string. 2. A vehicle navigation device for inputting a reading of a name of a registered point to search for a corresponding registered point and displaying a map including the searched registered point. Information storage means for storing information about position readings and position coordinates; input means for inputting the reading of the registered point; conversion means for converting the reading input by the input means into a predetermined character string; Searching means for searching for a registration point of a name including a character string selected from the selected character strings from the registration points stored in the information storage means, a list of converted character strings, and a list of searched registration points Are sequentially displayed on the screen, and when one of the registered points displayed in the list is selected, the position coordinates of the registered point stored in the storage means are read out, and the position coordinates are read out. And display means for displaying a map based, and a key for returning from a list display screen of the retrieved registration point to the list display screen of the converted string, after displaying the list of registered point on the display unit, wherein A navigation device for a vehicle, wherein a character string converted by a key is returned to a list display screen, another character string is selected, and the character string can be searched again. 3. A vehicular navigation device for inputting a reading of a registered point name to search for a corresponding registered point, setting the searched registered point as a destination or a passing point, and performing route guidance. Information storage means for storing information relating to the reading of each registered point and position coordinates as map information and registered point information; input means for inputting the reading of the registered point; and a predetermined character string for the reading input by the input means Conversion means for converting a character string selected from the converted character strings into search points from the registration points stored in the information storage means; Display means for sequentially displaying a list and a list of searched registered points by screen transition; current position detecting means for detecting a current position of the vehicle; registered points displayed in the list When one of the selected is selected, the position coordinates of the registered point stored in the storage means are read out, and the position coordinates are detected based on the current position detected as the destination or the passing point. And a key for returning to the list display screen of the converted character string from the list display screen of the searched registered points.After displaying the list of the registered points on the display means, the key of the character string converted by the key is displayed. A vehicular navigation device characterized by returning to a list display screen and selecting another character string to enable a re-search. 4. The vehicle navigation device according to claim 1, wherein said information storage means stores information on an area where a registered point is located as registered point information, and said search means includes: A vehicle navigation device for searching for a registered point based on input information specifying an area for searching for a registered point. 5. The vehicular navigation device according to claim 1, wherein the information storage unit stores genre information of a registered point as registered point information, and the search unit uses the input unit to execute the search. A vehicular navigation device for performing a search based on genre information of a registered point input.