JPH0894377A - Map display device - Google Patents

Abstract

PURPOSE: To reduce the memory capacity of telephone number data, and decrease load of renewal processing. CONSTITUTION: An input means 1a for inputting telephone numbers, an information storing device 3 for storing telephone number data 3a storing a point name including a coordinate at least every telephone number, address data 3b storing an address every coordinate, and map data 3c, a central processor composed of a telephone number retrieval means 4a for retrieving the point coordinate and point name of a telephone number input by the input means from the information storing device 3 and an address retrieval means 4b for retrieving the address data 3b corresponding to the point coordinate of the telephone number input by the input means 1a and a display 1b for showing the point name and address retrieved by the central processor 4, and the map centering the corresponding point are equipped. A quantity of data can be dispersed by the telephone number data 3a and the address data 3b. The data quantity of the telephone number data 3a is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a map display device for use in a vehicular navigation device or the like for inputting a destination such as a destination or a passing point to search for a route from a current position or a place of departure to provide route guidance.

[0002]

2. Description of the Related Art In a vehicular navigation device mounted on an automobile or the like, when inputting an arbitrary point and setting a destination or a passing point, an input form of the point is input by a code number or input by map coordinates, In addition to inputting registration points by genre search, inputting by phone number is also proposed. In the case of inputting a spot by setting a destination using this telephone number, a database storing the spot corresponding to the telephone number is prepared in advance, and when the spot is searched, for example, Japanese Patent Laid-Open No. 64-10383. By displaying the subscriber's name and address together, as proposed in, the input point can be confirmed.

[0003]

As the database for inputting the telephone number as described above, for example, the one registered by inputting the telephone number, subscriber name and address from the NTT occupational telephone directory (town page) is used. In this case, if it is a retailer, the name of the retailer is changed to about 30% per year depending on the type of business. Therefore, even if you enter a telephone number when setting the location, the subscriber name data corresponding to the telephone number will always be the latest, even when the subscriber name registered with that telephone number is displayed to confirm the entered location. If it is not, the point you entered is different from the point you remembered, so you can't know if you changed the phone number and selected a different point, or if you made a mistake in entering the phone number. Occurs. These data are always required to be updated. In addition, in order to improve accuracy, it is possible to display the address in addition to the subscriber name at the same time to increase the information for confirmation, but if the number of registered points increases, the amount of data becomes too large to be recorded in the memory. There is also a problem that it takes time to update.

An object of the present invention is to solve such a problem and to provide a map display device capable of reducing the memory capacity of telephone number data and the burden of update processing. is there.

[0005]

Therefore, according to the present invention, as shown in FIG. 1, input means 1a for inputting a telephone number, telephone number data 3a storing a point name including a coordinate at least for each telephone number, and a coordinate. An information storage device 3 for storing address data 3b and a map data 3c in which addresses are stored for each, and a telephone number search means 4a for searching the information storage device for the point coordinates and the point name of the telephone number input by the input means. , A central processing unit 4 having an address data searching unit 4b for searching address data corresponding to the point coordinates of the telephone number input by the input unit, and the spot name and address searched by the central processing unit and the spot. The display means 1b for displaying a centered map is provided.

Further, the telephone number data 3a is provided with registered place type data representing the type of registration point, the telephone number searching means 4a is provided with a determining means for determining the registered place type, and the address data searching means is provided. 4b is characterized in that the address name is retrieved from the address data based on the result of discrimination by the discrimination means.

[0007]

In the map display device of the present invention, the input means 1a for inputting the telephone number and the telephone number data 3 storing the point name including the coordinate for at least each telephone number 3
a, an information storage device 3 that stores address data 3b that stores an address for each coordinate, and map data 3c, and a telephone number that retrieves the point coordinates and the point name of the telephone number input by the input means from the information storage device. A central processing unit 4 having a searching unit 4a, an address data searching unit 4b for searching address data corresponding to the point coordinates of a telephone number input by the input unit, and a spot name and an address searched by the central processing unit. Since the display means 1b for displaying a map centering on the point is provided, it is possible to increase information for confirmation by simultaneously displaying the subscriber name and the address even if the data is not always the latest. It is possible to improve data accuracy. Moreover, since the data amount can be dispersed by the telephone number data 3a and the address data 3b, the data amount of the telephone number data 3a can be reduced. Further, even when the telephone number data 3a is changed, it is not necessary to change the address only by changing the coordinates, so that the changing process can be reduced.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 2 is a diagram showing a configuration example of a vehicle navigation device equipped with a map display device according to the present invention, FIG. 3 is a diagram showing a configuration example of a telephone number data file, and FIG. 4 is a configuration example of registration point number data. FIG. 5 is a diagram showing a configuration example of the address data file. The vehicle navigation device according to the present invention is required for input / output device 1 for inputting / outputting information regarding route guidance, current position detecting device 2 for detecting information regarding the current position of the vehicle, and route calculation as shown in FIG. Storage device 3 in which various navigation data and display guidance data necessary for guidance, etc. are recorded, and a central processing unit 4 that performs route guidance processing and display guidance processing required for route guidance, and controls the entire system It consists of First, each configuration will be described.

The input / output device 1 instructs the central processing unit 4 to perform navigation processing according to the driver's intention so that the driver can input the destination or output the guidance information by voice and / or screen when the driver needs it. In addition, it has a function of printing out the processed data. As a means for realizing the function, the input unit has a touch switch 11 for inputting a destination by a telephone number or coordinates on a map, or for requesting route guidance, and an operation switch, and outputs. The section displays the input data on the screen, the display 12 that automatically displays the route guidance on the screen in response to the driver's request, the data processed by the central processing unit 4 and the data stored in the information storage device 3. A printer 13 for printing and a speaker 16 for outputting route guidance by voice are provided.

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

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

The current position detecting device 2 is a GPS receiving device 21 using a satellite navigation system (GPS), a beacon receiving device 22, for example, a data transmitting / receiving device 2 for receiving a GPS correction signal using a cellphone or FM multiplex signal.
3, an absolute azimuth sensor 24 including a geomagnetic sensor,
A relative direction sensor 25 including a wheel sensor, a steering sensor, a gyro, and the like, a distance sensor 26 that detects a traveling distance from the number of rotations of the wheel, and the like are provided.

The information storage device 3 stores map data, intersection data, node data, road data, photograph data, destination data, guide point data, detailed destination data, telephone number data, address data, etc. necessary for route guidance. It is a database that consists of files and records all the data necessary for the navigation device.

The central processing unit 4 is a C for executing arithmetic processing.
The PU 40, a program for performing processing such as route search, a display output control required for route guidance, a program for performing voice output control required for voice guidance, and the first ROM 41 storing the data required for it are set. Destination coordinates, road surface code No. RAM 4 for temporarily storing route guidance information searched for, etc., and data being processed.
2. Second ROM 43 storing display information data necessary for route guidance and map display, image memory 44 storing image data used for screen display on display, CP
The image memory 4 based on the display output control signal from U40.
4, the image processor 45 that takes out image data from the image data, processes the image data, and outputs the image data to the display. A voice, a phrase, a sentence, a sound, etc. read from the information storage device 3 based on a voice output control signal from the CPU. A voice processor 46 for synthesizing and converting into an analog signal and outputting to the speaker 16, a communication interface 47 for exchanging input / output data by communication, and a sensor input interface 48 for taking in a sensor signal of the current position detecting device 2, It is provided with a clock 49 for entering the date and time in the diagnostic information. Here, the route guidance is configured so that the driver can select either screen display or voice output.

The telephone number data file stored in the information storage device 3 of the vehicle navigation system according to the present invention comprises telephone number data, registered telephone number, mark data and spot data as shown in FIG. From the data, point the registered telephone number and the landmark data respectively,
Point data is pointed to from mark data. The telephone number data includes each area / city code, representative point east longitude / north latitude, map display scale, registered phone number address, size, mark data address, and size data. You can search for numbers and spot data by genre name. The registered telephone number is the subscriber number, subscriber name, location east longitude / north latitude, map display scale,
It has each data of registered telephone number. The landmark data is
It has genre name, point data address, and size data. The point data has point data name and its reading, point east longitude / north latitude, map display scale, and registered point number data. As shown in FIG. 4, the registration point number data includes information on whether the registration place type is a general registration point or a town page, and each type in-type number data. Then, the address data has a lower left east longitude coordinate and a north latitude data address which are meshed at a predetermined distance as shown in FIG. 5, and a left lower north latitude coordinate and address name data for each point destination,
Address names can be searched from the coordinates of east longitude and north latitude.

Therefore, when the telephone number is entered, the area / local area code of the telephone number data is searched, and if there is a subscriber number that matches the registered telephone number, the subscriber name is acquired and the subscriber is subscribed. If there is no person number, the genre name is displayed from the mark data, and the spot data name of the genre name designated from the genre name is displayed. At that time, based on the reading of the point data, the point data names are displayed in the Japanese syllabary order so that they can be easily searched, and the scroll buttons are used to cue.
When the subscriber name and the point data name are displayed, the address name is acquired from the coordinates of the east longitude and north latitude at the same time and displayed together. If the subscriber number is searched in this way, or if the subscriber number is not searched and a location registered by genre is selected, the location is centered around that location according to the east longitude, north latitude, and map display scale. Show map of. However, if the desired point is not registered as a genre-specific point, the representative point of the telephone number data will be centered on the representative point that is preset in the area / city code according to the east longitude / north latitude and the map display scale. Display the map of the surrounding area, and input the coordinates of the desired point from the scrolled map.

Next, the operation will be described. FIG. 6 is a diagram for explaining the flow of the entire system of the vehicle navigation device according to the present invention, and FIG. 7 is a diagram for explaining the destination setting flow by telephone number.

When the program of the route guidance system is activated by the CPU 51 of the central processing unit 4, the current position is first detected by the current position detecting device 2 and the peripheral map around the current position is displayed as shown in FIG. At the same time, the name of the current position and the like are displayed (step S1). Next, a destination is set using a telephone number, an address, a facility name, a registration point, etc. (step S2), and a route from the current position to the destination is searched (step S3). When the route is determined, the current position is traced by the current position detection device 2 and the route guidance / display is repeatedly performed until the destination is reached (step S4). When the detour setting is input before reaching the destination, the search area is set, the search is performed again in the search area, and the route guidance is repeated until the destination is reached.

In the present invention, when the destination is set in the above flow by telephone number, the subscriber name and point name are acquired from the telephone number by telephone number data, and the address data is obtained from their coordinates (east longitude / north latitude). Get the address name,
After displaying the subscriber name, point name and address name together,
By displaying a map of the surrounding area centering on that point, the driver can confirm whether or not the point entered by the telephone number is correct. The process of setting the destination by the telephone number will be described below.

In the destination setting, the touch switch input is detected as shown in FIG. 7, and it is checked whether or not the telephone number button is touched on the destination setting screen (step S11). If the phone number button is touched, the screen switches to the phone number input screen (step S
12) Further, wait until the touch switch input is detected, and it is checked whether or not the ten key button is touched (step S13). When the ten-key button is touched, the input number is displayed (step S14), and the operation is repeated until the area / local area number-subscriber number is input (step S15). When the input of the telephone number is completed, the telephone number data is accessed to search the subscriber number of the registered telephone number input from the town page (step S16), and the registered place type shown in FIG. 4 is determined to determine "town page". If it is determined that the address name of the address data is retrieved from the point coordinates (step S17), the subscriber name and address name of the registered telephone number are displayed (step S18),
A map around the point is displayed (step S1)
9). In this way, when the point is confirmed by the display of the map following the display of the name and the address name and the set button is touched, the setting of the destination is completed.

Next, the flow of the operation for registering the memory location will be described with reference to a concrete example of the screen. 8 is a diagram showing an example of the overall configuration of the operation unit and the display unit, FIG. 9 is a diagram showing an example of the configuration of the target value setting screen and the telephone number input screen, FIG.
11 and 12 are diagrams for explaining an operation example of inputting a destination by inputting a telephone number.

In FIG. 8, the display 61 is composed of a color CRT or a color liquid crystal display, and is provided in the instrument panel near the driver's seat by combining a touch panel with the screen. Then, all the screens necessary for navigation, such as the current location, the guide screen, the destination setting screen, and the menu screen based on the map data and guide data processed by the central processing unit, are output in color display, and selection and operation instructions are displayed on the screen. Buttons are displayed, and a touch panel is provided on the screen to detect selection and operation of these buttons. The passing intersection information such as the name of the passing intersection is displayed in a pop-up color on the section map screen at any time.

On the panel around the display 61, the present location [voice guidance] switch 62 and the destination setting switch 6
3, a menu switch 64 is provided. When the current position [voice guidance] switch 62 is pressed on another display screen, it switches to the current position display screen and displays a map centered on the current position detected by the current position detection device. When pressed, the route guidance is started and the guidance screen is output together with the guidance voice. "Details" to switch to a more detailed map on the current location display screen
Button, "wide area" button to switch to a wide area map, "correction" button to correct the current location (center position of the map) are displayed. On the current location correction screen, arrow movement buttons, "set" button are displayed diagonally up, down, left, right. Then, when the move button is touched, the map is moved so that the current position can be corrected with the "set" button with the center as the current position.

When the destination setting switch 63 is pressed, the destination setting screen is switched to the destination setting screen as shown in FIG. 9A, and the destination can be set. On the destination setting screen, options such as "phone number", "address", "golf course" and "other facilities" (station, intersection, IC / SA / PA, other genres) are available when selecting a destination. A button for the registration point by the facility name, "home", "memory point", and "previous departure point" is displayed, and the destination can be set with each content. Further, the operation explanation screen can be displayed by pressing the operation explanation display button.

When the menu switch 64 is pressed, the menu screen is switched to the "phone book" or "CD".
Each button of "CRAFT", "memory location registration", "memory location deletion", "change" / "delete" of route, and volume adjustment is displayed, and these functions can be used. Further, the travelable distance calculated based on the remaining amount of gasoline, fuel consumption, etc. is displayed in the range of cruising distance. The "phone book" is provided by registering the telephone numbers of facilities such as JAF, road traffic information center, tourist information center, emergency medical information center, restaurant / hotel, etc. where the telephone number is often checked such as destination. To do. "CD CRAFT" is selected when the CD-ROM is mounted and the software is used on this display input screen. "Memory location registration" is for registering locations that the driver prefers to use, such as golf courses, acquaintances' homes, various facilities, etc., such as telephone numbers, addresses, present locations, destinations, golf courses, etc. It is possible to select and register using the facility name such as the facility. "Memory location deletion" is to erase the location registered in "memory location registration". The "change" of the route is to change to a route passing through a new destination, a passing point, or a detour, and the "delete" is to delete the route that has already been searched. The volume adjustment is selected when the volume of the speaker 16 is adjusted. “OFF” stops the audio output, and “small”, “medium”, and “high” decrease the volume. It is operated when increasing the size. The “correction” is for correcting the geomagnetic sensor or the like equipped as a means for detecting the current position when the influence of noise.

On the destination setting screen of FIG. 9 (a),
When the "phone number" button is touched, the screen is switched to the phone number input screen shown in FIG. 9 (b). This telephone number input screen is provided with a telephone number input section 101 consisting of a numeric keypad for sequentially inputting the area code, local area code and subscriber number and a clear key for canceling the input number, and a telephone number input in the upper area of the input section. A telephone number display unit 102 for displaying a number is displayed. When a desired telephone number is sequentially input from the area code, the input telephone number is displayed on the telephone number display unit 102 as shown in FIG. When the subscriber number is searched from the telephone number data file as described above, the address name corresponding to the east longitude / north latitude coordinates stored in the telephone number data file is searched from the address data file, and the address name shown in FIG. As shown in a), a message for displaying a map of the surrounding area is displayed for a certain period of time together with the subscriber name "Chirakan Takadake store" and the address name "Izumi, Higashi-ku, Nagoya". In particular, in the present embodiment, the search result display unit 103 for displaying the searched subscriber name and address name is displayed on the ten-key button constituting the telephone number input unit so as to be displayed together with the inputted telephone number. It is configured.

That is, the telephone number input screen shown in FIG. 9B is stored in the V-RAM (image memory 44) as a base screen when the telephone number is input, and this telephone number input screen is designated when the telephone number is designated. Is displayed on the display screen as a window of the base screen, and by touching the number on the ten-key portion 101 of FIG. 9B in the input screen, the telephone number of the telephone number input screen is displayed as shown in FIG. 10B. The input telephone number is displayed in a superimposed manner on the position of the display unit 102. After that, when the subscriber name and address of the input telephone number are searched, those search results are shown in FIG.
Although it is displayed on the search result display unit 103 of (a), this search result display unit 103 is stored in the V-RAM separately from the telephone number input screen 101, and when displaying the search result, As shown in FIG. 11 (a), the window of the search result display portion determines and displays the coordinates of the display position so as to overlap the ten-key portion of the window of the telephone number input screen. Here, the window of the search result display portion is colored such as white so that the numeric keypad is hidden.

Conventionally, for example, in the telephone number input screen disclosed in Japanese Patent Laid-Open No. 3-141499, a numeric keypad for inputting a telephone number is displayed on the right side of the center of the screen, and an input result and a search result are displayed on the left side. However, since it is a display for a vehicle, the size of the display is about 6 inches even if it is large, and when the display screen is divided into left and right as in the above-mentioned prior art, the information displayed becomes very small. There is a mistake in pressing the number when inputting from the numeric keypad, or it is difficult to recognize the display of search results. With the screen configuration as shown in the above embodiment, the search result display unit 103 is first displayed so as to be hidden on the ten-key display unit 101, so that the telephone number is correctly input and the search result is extracted. If
Since the operation of the numeric keypad is not necessary, it is possible to call the user's attention that the numeric keypad operation is not necessary.
Further, since this system is for a vehicle and the display is small, it is required that the information to be displayed be displayed as large as possible in the center of the display. It is possible to easily recognize the displays on the number input unit and the search result display unit.

By simultaneously displaying the entered telephone number and the retrieved subscriber name and address name, the operator can easily enter the name corresponding to the entered telephone number,
You can check the location. Then, a peripheral map centered on the position coordinates of the telephone number input after a predetermined time is displayed on the search result display portion is displayed as shown in FIG. 11 (b). Further, the search result display unit 103 is configured to display the searched subscriber name and address name, and to display the registered location type shown in FIG. Here, since the data "town page" is stored as the registered location type, "the search was made from the NTT occupational telephone directory" is displayed. Therefore, first, the telephone number search means 4a searches the telephone number input in step S16 of FIG. 7 to see if it has been registered. , The address name is searched based on the discrimination result. Particularly in this embodiment,
Two types of data, "general registration point" or "town page", are stored as data of registered land type. When "general registration point" is searched, the name is searched from the telephone number data, Only the name is displayed, and if it is a "town page", the address and the address data corresponding to the input point coordinates are searched in addition to the name, and the address is displayed together with the name. However, in the present invention, the present invention is not limited to the above-mentioned embodiment, and among the points registered in the town page, for example, public facilities such as public offices and post offices, hotels and stations, etc., whose point names are hard to change Does not need to display the address, and may be stored in the database by removing it from the above “town page” registration point. After that, it is determined whether or not the subscriber name and the address name stored in the telephone number input in the display of FIG. 11 (a) match, and further whether or not the point is also stored in the map. You can set the destination by touching the set button. Also, if you want to set a point near this point based on this map instead of the point displayed by this telephone number, touch the position change button and the scroll button with the arrow in the up, down, left, right, and diagonal directions. Is displayed and the screen can be scrolled, so that an arbitrary point can be set as the destination by scrolling the destination point at the center.

The present invention is not limited to the above embodiment, but various modifications can be made. For example, in the above embodiment, the map display device in the vehicle navigation device has been described. However, the map display device may be applied not only to the vehicle navigation device but also for other purposes such as a map display device provided for guidance in the city. Of course good things. Also, when inputting the telephone number for setting the destination, the subscriber name, point data name, and address name of the point were displayed immediately before the map of the point corresponding to the input telephone number was displayed. The same may be displayed when the memory point is registered by inputting a telephone number. Needless to say, the same may be applied to other telephone number inputs.

Further, in the present embodiment, the telephone number is input, the input telephone number is displayed, the subscriber name and address name of the telephone number are searched, and after the search result is displayed for a certain period of time, the point is centered. Although it is configured to display the map, a telephone number display section that displays the entered telephone number, a search result display section that displays the subscriber name and address name, and a "confirmation key" for confirmation , A "return key" for re-inputting is provided, a map is displayed when the "confirmation key" is operated, and a phone number input screen is displayed when the "return key" is operated (Fig. 10 ( a))
It may be configured to return to. In any case, by displaying the entered telephone number, subscriber name, and address name at the same time, the store has changed, whether the entered telephone number is confirmed, for example, whether the number was entered incorrectly or the telephone number was changed. It is possible to easily confirm whether or not it is.

Further, in the present embodiment, it is particularly effective for the telephone numbers described in the town page (telephone directory by occupation) of retailers and the like, in which the rate of change of the subscriber name is large, but the general registration point shown in FIG. It is needless to say that the present invention is also applicable to and has the same effect.

As is clear from the above description, according to the present embodiment, when the point input is performed by the telephone number, when the map around the searched point is displayed, the input is performed for a fixed time. Since the registered telephone number, the subscriber name, the spot name, and the address name of the registrant of the telephone number are displayed, it is possible to easily confirm whether or not the telephone number input by these names is correct. Moreover, since the coordinates are stored in the telephone number data file to be directly searched and the address data for searching the address name from the coordinates is separately configured, the data amount of the telephone number data file can be reduced. In this embodiment, since the relationship between the address and the coordinates that are rarely changed is separately stored as fixed data, for example, when the address or the like for a certain telephone number is changed, the data is changed. , All you have to do is change the coordinates in the registered phone number data,
It is possible to change the data more easily than the structure in which "telephone number-subscriber name-address name" is provided. Further, even when the telephone number data is added, it is not necessary to store the address data in the telephone number data, and the addition can be easily performed.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of a map display device according to the present invention.

FIG. 2 is a diagram showing an example of a configuration of a vehicle navigation device equipped with a map display device according to the present invention.

FIG. 3 is a diagram showing a configuration example of a telephone number data file.

FIG. 4 is a diagram showing a configuration example of registration point number data.

FIG. 5 is a diagram showing a configuration example of an address data file.

FIG. 6 is a diagram for explaining the flow of the entire system of the vehicle navigation device according to the present invention.

FIG. 7 is a diagram for explaining a destination setting flow based on a telephone number.

FIG. 8 is a diagram showing an example of the overall configuration of an operation unit and a display unit.

FIG. 9 is a diagram showing a configuration example of a target value setting screen and a telephone number input screen.

FIG. 10 is a diagram for explaining an operation example of inputting a destination by inputting a telephone number.

FIG. 11 is a diagram for explaining an operation example of inputting a destination by inputting a telephone number.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Input / output device, 2 ... Present position detection device, 3 ... Information storage device, 4 ... Central processing unit, 11 ... Touch switch, 12
... display, 13 ... printer, 16 ... speaker, 2
1 ... GPS receiver, 22 ... Beacon receiver, 23 ...
Data transmitting / receiving device, 40 ... CPU, 41 ... First ROM,
42 ... RAM, 43 ... Second ROM, 44 ... Image memory,
45 ... Image processor, 46 ... Audio processor, 47 ...
Communication interface, 48 ... Sensor input interface, 49 ... Clock

Claims (2)

[Claims] 1. Input means for inputting a telephone number, telephone number data storing a point name including coordinates for at least each telephone number, address data storing an address for each coordinate,
An information storage device for storing map data; a telephone number search means for searching the information storage device for the point coordinates and the point name of the telephone number input by the input means; and a point coordinate of the telephone number input by the input means A central processing unit having address data searching means for searching address data corresponding to the above, and display means for displaying a spot name and address searched by the central processing unit and a map centering on the spot. Characteristic map display device. 2. The telephone number data includes registered land type data representing a type of a registered location, the telephone number search means includes a determination means for determining the registered land type, and the address data search means includes: The map display device according to claim 1, wherein the address name is searched from the address data based on the result of the determination by the determination means.