JPH02217886A - Map information storage disk and its reproducing system or recording and reproducing system - Google Patents

Abstract

PURPOSE:To obtain an easy-to-use disk which is characteristic to a user by arranging an additional write part where additional writing by the user is possible on a disk having a ROM part where map information is recorded previously. CONSTITUTION:The ROM part 1a is arranged at the inner circumferentical part of the disk 1 for map information storage and a PROM part 1b where additional writing is possible is arranged at the outer circumferential part. Subordinate information of map information is stored in the additional write part 1b of the disk 1 and a destination is displayed reading relative information out of the ROM part 1a and additional write part 1b in response to the input of destination information. Here, the subordinate information is recorded relatively to the destination by operating an input part. Consequently, the subordinate information is easily stored and reproduced to obtain the disk that the user easily uses.

Description

[Detailed description of the invention] (a) Industrial application field The present invention is suitable for use in a map providing system configured to reproduce map information from a medium and provide road traffic information from the current location to the destination. The present invention relates to a map information storage disk and its recording system or its recording and reproducing system.

(b) As an example of a map providing system configured to reproduce map information from conventional technical media and provide road traffic information from the current location to the destination, for example, Nikkei Electronics 1987.1
There is a navigation system disclosed in 1.16 (no, 434) P119-P130. In such a navigation system, a compact disk (CD-ROM) is used as a medium for storing map information, and the map information is optically read from a predetermined address on the CD-ROM.

By the way, in addition to being used for driving vehicles as described above, such a map providing system can also be installed as a stationary device in a hotel, etc., and used as a service system that provides road traffic information to tourist spots around the hotel. It is possible. When a map provision system is installed as a service system in this way, the current location remains unchanged (in this case, the location of the hotel), so if the current location is memorized according to the installation location, the destination can be searched. When doing so, there is no need to input your current location into the system, which is extremely convenient. In addition, if information on landmarks around the hotel or information on services when heading to sightseeing spots is displayed along with the map played from the CD ROM, more user-friendly map information can be provided to the user. be able to.

Such post-added sub-information can be recorded either on a separate recording medium such as a magnetic tape, or by pre-recording it on a CD-ROM. However, in the case of recording separately on a magnetic tape as in the former case, there will be a plurality of recording media and recording and reproducing devices will also be required accordingly, which is not very practical. In addition, in the case of storing sub-information in advance in the CD-ROM, as in the latter case, only one disc will be made when producing the CD-ROM, making it impossible to mass-produce, which is not realistic in terms of cost. isn't it.

(c) Problems to be Solved by the Invention The present invention aims to provide a map information storage disk and its recording and reproducing system that can easily store and reproduce the above-mentioned sub-information.

(d) Means for Solving the Problems In order to solve the above problems, the present invention provides a map information storage disk that is arranged to include a ROM section in which unique map information is recorded, and information related to the map information. The first feature is that it has a write-once section.

Further, the playback system is configured to search and play back the ROM section and the addendum section in response to input of destination information, and display the destination on the display means.

The recording/playback system also includes a playback section that reads map information from the ROM section of the disk and plays it back, an input section that inputs the current location and a desired destination, and a playback section that reads map information from the current location and destination. a selection section that selects a selection from a ROM section of the disk; and a recording section that records address information of the current location in an additional recording section of the disk, and associates the address information of the destination with the map screen information and records it in the additional recording section of the disk. The configuration has the following.

(E) Effect The sub-information of the above map information is stored in the additional recording section of the disk. Further, the destination is displayed by reading out related information from the ROM section and the postscript section in response to input of the destination information. Further, the sub information is recorded in association with the destination by operating the input unit.

(f) Example Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing a disk for storing map information. As shown in the figure, the disk (1) has a ROM on the inner circumference.
part (1a) is arranged, and the outer periphery is provided with P that can be additionally written.
A ROM section (lb) is arranged. Of these, the ROM section (
la) is composed of an Au vapor-deposited film, while the PROM part (
1b) is formed by applying a dye material to this Au vapor-deposited film using a spinner. The configuration of such a disk is based on Nikkei Electronics 1988.10.3 (n
o, 457) Ploo-PIOI, and detailed description thereof will be omitted here.

Such a disk (1) has map information of a desired area (by prefecture, etc.) recorded in its ROM part (1a),
Furthermore, no information is recorded in the PROM section (lb) other than sub-information such as address information, so that desired information can be recorded by the user. ROM section (Ia
) and writing/reading information to/from the PROM section (1b) are optically performed using a laser beam from a pickup, which will be described later.

As mentioned above, map information of a predetermined area is recorded in the ROM section (1a). Such map information is, for example,
Nikkei Electronics 1987.11.16 (no.
, 434) is recorded in the ROM section (1a) in a 7 format similar to the format disclosed in PI 19-P2S5. However, the ROM section (1a) further contains:
The address of the starting position of the PROM section (1b) is recorded. Further, address signals spanning the ROM section (1a) and PROM section (1b) are recorded on the disk in the form of, for example, elapsed time. The PROM section (1b
) This address signal is used as the start position address.

The map information recorded in the ROM section (1a) displays a predetermined area (prefecture, etc.) on the entire disk, but within the ROM section (1a), the map information is displayed as shown in Figure 2. , data is recorded separately for each divided area obtained by dividing a predetermined area. Then, during playback, the data of the unit areas divided in this way is read from the disk, this data is decoded, and a map is displayed on the screen.

In the ROM section (la), management data as shown in FIG. 3 is recorded at the starting position so that the data of each divided area can be quickly searched. As shown in the figure, such management data is divided into map name, index data, and address data. Here, the map names are A in Figure 2,
B, C1, . . . correspond to I, and the index data indicates the relative ranking of each divided area. That is, this index data indicates area numbers in the upward and horizontal directions with divided area A as a reference, and the index data for A is "00",
The index number of B is "10" and the index number of rolJD is "10". In addition, the address data is stored in the ROM section (
Of the continuous addresses assigned over 1a), address data of the starting point of the map data block of each divided area is shown.

Desired position data is recorded in the PROM section (1b) by a user's operation. When recording position data, first, a point corresponding to the position data to be recorded is found by operating the ROM section (1a) and displayed on the screen. When the corresponding map is displayed on the screen, the system is set to recording mode by operating the recording setting button on the operation unit. When the system is set to recording mode, the cursor returns to the screen and
The user moves the cursor up, down, left and right by operating the operation keys, and brings the cursor to the desired position. After the cursor has reached the destination position, by operating the record setting button again, the index data of the map read out on the screen and the coordinate data of the destination on the screen are stored in the system's RAM ( R
andom Access Memory). In addition, such coordinate data is divided into 30 pixels vertically for each divided area.
The coordinate values are shown when divided into 0 dots and 400 dots horizontally.

On the other hand, at the timing when the recording setting button is operated for the second time to write data to the RAM, the screen appears as follows.
The map is switched to the msq data display of the destination shown in FIG. The user selects the destination identification data from this data and enters the corresponding number into the system. When the corresponding number is entered into the system, the fifth
As shown in the figure (in this case, "7. Temples and Shrines" is selected), the data by S is further subdivided, and the user enters the name of the destination into the system by operating the operation panel, and the ranking is determined. The name is displayed in the smallest blank field (in this case, the (2) field). After the name is displayed in this way, the user operates the record setting button again to
The identification data number and name data number of the destination are stored in the RAM of the system. At this time, the destination name data input into the system is encoded into character data, and this character data is simultaneously stored in the RAM. Furthermore, at the same time, the character data is recorded in another RAM in the system at a position whose address is the identification data number and name data number.

Thereafter, by operating the recording setting button again, the index data, coordinate data, identification data number, name data number, and character data recorded in the RAM are transferred to the PROM section (1b) of the disk. ) is written.

Note that writing of such data involves modulating the beam output from the pickup with digital data in which each of these pieces of data constitutes one frame, and converting this modulated beam into the corresponding P.
This is done by irradiating the ROM section.

FIG. 6 is a circuit block diagram showing a specific example of the configuration of the writing device described above. The specific operation of the writing device will be described below using this circuit block diagram.

First, before writing the destination, by operating the key operation section (2), the divided area containing the destination is displayed on the display section (
3) Display it on the screen. A search command signal input to the system via the key operation unit (2) is processed by a microcomputer (4) and input to a map search control unit (5). In response to receiving such a signal, the map search control unit (5) outputs a control signal to the disc playback unit (6), sets the disc playback unit (6) to the playback mode, and performs the desired search. Search the divided map area. However, when such divided map area data is read, the image data obtained by processing this data is displayed on the display unit (
3), and the display unit (3) displays the divided map area on the screen.

Next, when the write setting button of the key operation section (2) is operated, a cursor appears on the screen of the display section. This cursor is moved vertically and horizontally on the screen by the user operating the key operation section (2). The user moves the cursor in this manner to bring the cursor to the target position. Once the cursor has reached the target position in this manner, the user then operates the write setting button of the key operation section (2) again. Incidentally, during the above target position search, the index number of the search division area and the cursor position ii! (PIE mark m> is the index detection unit (7) and cursor position detection unit (8), respectively.
has been detected by.

However, as mentioned above, when the write setting button is operated again,
The index number data and cursor position data (coordinate data) detected by the index detection unit (7) and cursor position detection unit (8) are both stored in the RAM (9).
is memorized. At the same time, the screen of the display section (3) is switched from the map screen to the destination identification data display shown in FIG. 4.

The image data for displaying such identification data is stored in the ROM table (
10), and this ROM table (10)
By sending data to the display section (3), identification data is displayed on the screen of the display section (3). When the display screen is switched in this manner, the user selects suitable identification data from among several types of identification data, and inputs the number assigned to the data into the system via the key operation unit (11).

In response to such input, the microcomputer (4) controls the display unit (3).
A control signal is outputted to the display section (3) and the ROM table (10) to switch the screen to a display of name data obtained by dividing the selected identification data into more detail as shown in FIG.

On the other hand, the microcomputer (4) outputs the number data of the selected identification data to the identification data number and name data number output (MJOI).

However, when the screen on the display section (3) is switched, the user next operates the key operation section (2) to input the name of the destination position. On the screen of the display section (3), this name is displayed in the first blank field of the name data display. After that, when the user operates the write setting button again, the name data number in the column where the name data is newly displayed is output to the identification data number and name data number output section (11), and the purpose Place name data is output to a character code output section (12). The identification data number and name data number output section (11) and character code output section (12) encode the input data and store each of these data in the RAM (9).

Each data thus stored in the RAM (9) is further transferred to the disk writing section (13) and thereby stored in the PROM section (1b) of the disk (1).

On the other hand, the name data of the target position is an EFRO that can be rewritten using the identification data number and name data number as an address.
M(14). Figure 7 shows the PROM section (1b
) is a diagram showing the data format of . As shown,
The PROM section (1b) has a management information area at the beginning where management information of the PROM section is recorded, followed by a position data area where each position data is recorded, divided into blocks. There is.

In the management information area, as shown in FIG. 8, the start address of each position data block is recorded in association with the identification data number and name data number. In addition, in each position data block, as shown in FIG. 7, management information for the corresponding data block, the above-mentioned Intel/Zex data, coordinate data, and character data are recorded. This management information includes index data, coordinate data,
and the start address of character data are recorded.

In the manner described above, various position data are recorded in the PROM section (1b) of the disk by the user. The location data recorded by the user includes temples, shrines, schools,
In addition to amusement parks and the like, there is also the current location of the building where the system is installed.

Next, a system for searching for desired position data using a disk on which data has been written as described above will be described below.

FIG. 9 is a diagram showing the appearance of this system.

In the figure, (15) is a display section, (16) is an operation button section,
(]7) is a coin slot, (18) is a hard copy part,
(19) is a disc recording/reproducing section. Note that the above-mentioned operation section for recording position data is not exposed to the outside so that the user or the like cannot input position data without permission.

In this system, in the initial state, the display unit (15
), the identification number and the identification details of that identification number (surrounding map,
stations, parks, etc.) are displayed. In order to obtain map information to a destination, the user first inputs the identification number of the identification content that includes the destination into the system using the operation button (16). When the identification number is input into the system using the operation button (16), the screen of the display unit (15) displays the name of the destination included in the identification number thus input and its name number from the above initial screen. The display changes. Such display screen switching is performed using identification data input into the system from an EP ROM (14) in the system in which various destination names are encoded and recorded using identification data numbers and name data numbers as addresses. This is achieved by reading name data based on the number and displaying it on the screen.

The user selects the name data number corresponding to the target position name from the screen switched in this way, and presses the operation button (16).
) and enter this name data number into the system, a map from the current location to the destination location can be displayed on the display unit (15). When a name data number is entered into the system, this name data number is stored in RAM within the system along with the identification data number previously entered into the system.

After that, the disc recording and reproducing section operates and the disc (1
), the f-layer information recorded at the beginning of the PROM section (1b) is reproduced, and a set of identification data number and name data number corresponding to each position data block in the management information is stored in the RAM. The identified identification data number and name data number are sequentially compared, and when a match is detected, address data corresponding to the identified identification data and name data number for which the match has been detected is read out from the management information.

When address data is read in this manner, a data block corresponding to this address data is searched based on this address data, and when the search is completed, the data block thus searched is then reproduced. The data reproduced from the data block includes index data,
It consists of coordinate data and character data, and each of these data is stored in RAM within the system.

In this way, each data regarding the destination is stored in the PROM section (1b
), the PROM section (1b
), the index data, coordinate data, and character data of the current location are read out and stored in the same RAM as above.

In this manner, when each data of the destination and the current location is read, the index data of the destination and the index data of the current location are compared. Here, if the index data of the destination and the index data of the current location match, the destination and current location are included in the same divided map area, so it is sufficient to read only one divided map area. , therefore,
Based on this index data, the corresponding map data is read from the ROM section, and the map is displayed on the display section (15).
to be displayed.

However, if the index data of the destination and the index data of the current location do not match, the destination and current location are not in the same divided map area, so in this case, the index data of the destination and the index data of the current location are Based on multiple map data, ROMMJ (Ia
) must be read from. In such a case, it should be read out so that it includes the divided map area corresponding to each index data, and so that the opposite sides of the rectangle with the divided map area that includes the current location as the apex have the same number of divided map areas. Divided map areas are set, and each divided map area is connected and displayed on the display section (15). For example, if the index data of the current location is (1, 0) and the index data of the destination is (3, 1), the index data of the divided map area to be read is (1, 0), N,
t).

(1,2), (2,0), (2,1), (2,2).

There are nine ways: (3,0), (3,1), (3,2). If the divided map area of the destination and the divided map area of the current location are on one side of the quadrangle, the quadrilateral is configured such that the other side of the quadrangle extends upward or to the right from the current location.

Once the index data of the divided map area to be read is determined in this way, the index data is read from the management information area attached to the beginning of the ROM section (1a) of the disk (1) based on this index data. The starting address of each divided map data block is read. Then, by searching for each of these starting addresses, the data of each divided map data block is read, and after each data is reproduced by the reproduction section, the maps of each divided map area are connected and the display section (
15).

At this time, the map displayed on the display unit (15) must be displayed in a smaller size as the number of divided map areas to be connected increases. automatically set by the system according to the

As described above, a map including the current location and destination is displayed on the display unit, but the map also includes the coordinate data and character data of the current location and destination stored in the RAM. Based on this, the current location and destination are displayed. In order to display each position, the coordinate position of each position within the divided map area including each position is obtained from the coordinate data, and each position is marked by drawing, for example, a black circle at this position. Then, the character data at each position is further decoded, and the name of each position is attached next to the black circle. Note that the current location is always attached as "current location". FIG. 10 is a diagram showing an example of a map displayed on the display section (15) when "Iroha Temple" is set as the destination.

The user can know the route to the destination in this way, but the map displayed on the display section (15) can be
L cannot remember it. Therefore, in this embodiment, a bar copy portion (18) is incorporated into the system so that the user can copy the map displayed on the display section (15). When the user wants to copy the map displayed on the display section (15), after inserting a coin into the coin slot (17) of the system, press Y on the operation button section (16).
All you have to do is operate the ES button (16a). At this time, the magnification of the map to be copied is automatically determined according to the number of divided map areas to be read from the ROM section (1a). However, if the number of divided map areas to be read is large and the copy magnification of the map is too small, the copied map will be much harder to see and there will be problems such as difficulty in finding the way to the destination.

Such inconvenience can be solved by adjusting the copy magnification as described above and also automatically changing the size of copy paper according to the number of divided map areas to be read.

FIG. 11 is a circuit block diagram showing a specific configuration example of the above embodiment. Some of the operation keys (2
When the identification data number and name data number of the destination to be searched are input to the microcomputer (4) via 0), these 2
The number data is applied to the FROM address setting section (21). The FROM address setting unit (21) sets the start address of the portion where the destination data determined by the number data is recorded to the disc playback unit (1).
9), the data is detected from the management data area of the PROM section (lb) based on the two number data.

The detected start address is transferred to the destination data detection section (22), where desired destination data is searched based on this start address. As mentioned above, destination data is composed of index data, coordinate data, and character data, and each of these data is sent from the destination data detection section (22) to the image creation section (23).
will be sent to. Also, the index data among the above-mentioned data is transferred to the map search unit (24), where it is compared with the index data of the next detected destination, and the division to be read from the ROM unit (la) is determined. Index data of the map area is calculated.

Each index data calculated in this way is transferred to the image creation section (23), and map data is searched and reproduced from the ROM section (1a) of the disk (1) based on each index data. Each piece of map data thus reproduced is then demodulated and adjacent images are joined together to be transferred to the display unit (15) as one piece of image data. At this time, the current location data and destination data that were previously applied to the image creation section (23) are also superimposed on this image data and transferred to the display section (15). At this time, the magnification of the image is determined according to the number of index data.

Further, when a command to copy the image displayed in this way is applied to the system by the user, in response, a command is issued from the microcomputer (4) to the copy part (18),
Such images are copied.

FIG. 12 is a diagram showing the internal structure of the FROM address setting section (21), destination data detection section (22), and map search section (23).

The FROM address setting section (21) reproduces data from the buffer A (100) in which the identification data number and name data number of the destination information to be searched are set, and the management data area of the PROM section (1b) of the disk (1). It consists of a buffer B (101) in which the identification data number and name data number and the data block start address corresponding thereto are set, and a comparison section (102) that compares the contents of both buffers. In response to the start of destination data search, the search control unit (20
0) is activated, and an address corresponding to the identification data number and name data number set by the operation key section (20) is searched from the PROM section (1b) on the disk (1).

Such a search is performed using the identification data number and name data number set in the buffer A (100) and the buffer B (100).
The comparison unit (102) compares the identification data number and the name data number that are set at any time in 101), and is executed depending on whether or not the two match. When it is detected that these data numbers match, a pulse signal is output from the comparator (102), and among the data set in buffer B (101) at this time, the start address data is the buffer C (103) in the destination data detection unit (22).
).

The destination data detection unit (22) stores the buffer C (1
03), a buffer D (104), a comparison section (105), and a signal processing section (106). Of these, buffer D (1,04) contains the PROM of disk (1).
The address data reproduced from section (lb) is set.

As described above, when the start address data to be searched is set in the buffer C (103), the search control unit (
200), a search targeting the start address set in buffer C (103) is executed. When the search is executed in this way, address data from the disk (1) is set in the buffer D (104) at any time, and the comparison unit (
105), this address data is transferred to the buffer C (
103). However, when the comparison section (105) detects a match between both address data, it is determined that the target start address position has been searched, and a pulse signal is output from the comparison section (105).

Such a pulse signal is applied to a signal processing section (106),
The signal processing section (106) is activated. Signal processing unit (1
06) performs signal processing on the destination data following the searched start address, and outputs this processed data to the image creation section (23).

The map search unit (24) includes an index detection unit (107) that detects index data from the destination data processed by the signal processing unit (106), and a buffer E (in which the index data is selectively set). 10
8) and a calculation unit (110) that calculates divided map data to be read from the ROM unit (1a) from the index data set in buffer F (109) and one buffer.
It becomes more. Among the destination data processed by the signal processing unit (106) as described above, index data is detected by the index detection unit (107), and this data is further transferred from the index detection unit (107) to the buffer E. (108).

As described above, the reading of the destination data is completed, and then the reading of the current location data is started. The reading of the current location data is performed by the same procedure as the above-mentioned reading of the destination data, and at this time, the destination data (index data, coordinate value data, character data) regarding the current location is similarly sent to the image creation section (23). At the same time, the index data is set in the buffer F (109) via the index detection section (107). In this case, buffer A
The identification data number and name data number set in (100) are automatically set by the microcomputer (4).

Now, when the reading of the current location data is completed as described above, in response to this, the calculation unit (110) of the map search unit (24)
) is activated, buffer E (108) and buffer F (
Based on the index data set in 109), map data (index data) of the divided area to be read out next from the ROM section (1a) is calculated. In other words, if the contents set in both buffers are the same, the current location and destination are in the same divided map area, so the image creation unit (
23), common index data set in both buffers is output. Furthermore, if the contents set in both buffers are different, the index data corresponding to the plurality of divided map areas for creating one map leaf including the current location and destination as described above is stored in the calculation unit (110). )
These index data are output to the image creation section (23). This kind of image creation department (23
), the image creation unit (23) first generates map data corresponding to each index data,
It reads and processes data from the ROM part (1a) of the disk (1), and then combines data corresponding to the destination and current location in the form of coordinate data and character data to form one image, and displays this image data. (15).

As described above, according to this embodiment, a user-recordable PROM section is provided on a disk on which map information is recorded in advance, and the user can arbitrarily record famous spots or sightseeing spots around the system installation location in the PROM section. This allows the disk to be used as a unique map recording disk depending on the location where the system is installed, thereby making it easier for users to use the disk. In addition, since a disc recorded in this manner is played back by a single playback device, there is no need for another playback device or an interface circuit for connecting the two playback devices, thereby making the system easier. The configuration can be simple and the cost can be reduced.

Note that the present invention is not limited to the above embodiments,
Various other changes are possible. For example, in the above embodiment, the information stored in the PROM section is only the location information and name of the destination, but it also includes information indicating major transportation facilities such as the nearest station, and information stored in accordance with the destination. If tourist guide information and the like are simultaneously recorded in the PROM section as sub-information regarding the destination, the user can be informed of the information regarding the destination more clearly.

Further, in the above embodiment, the system is used as a stationary type installed at a predetermined location, but it is of course possible to use the system as a navigation system for a vehicle.

Furthermore, in the above embodiment, the system is capable of both recording and reproducing, but a system having only a reproducing function is adopted, and the recording of sub-information in the PROM section is performed separately by the manufacturer at the user's request. It may also be recorded. In this case, the manufacturer will store the ROM, which accounts for most of the data.
Since parts can be shared, it is possible to mass produce discs, and
Users have the advantage of being able to obtain their own unique disc at a relatively low cost.

(g) Effects of the Invention According to the present invention, a disk having a ROM section in which map information is pre-recorded is further provided with an addendum section that allows the user to write additionally. , it is possible to create a disc that is easy to use depending on the user, and the utility value of the disc can be further expanded.

Furthermore, if the disk is used in a map search system,
Since the disc can be played back by a single playback unit, the system can be configured simply and at low cost.

[Brief explanation of the drawing]

Each of the figures shows an embodiment of the present invention; Fig. 1 shows a disk, Fig. 2 shows divided areas of a map, and Fig. 3 shows an aspect of management data in the ROM section. , Fig. 4 and Fig. 5 are diagrams showing the display state of destination identification data and its subdivision data displayed on the display section, Fig. 6 is a circuit diagram of the recording system, and Fig. 7 is a diagram of the PROM section. Figure 8 is a diagram showing the form of management data recorded in the management information area of the PROM section, Figure 9 is a diagram showing the external appearance of the system, and Figure 10 is an example of a destination search display. 11 and 12 are circuit block diagrams showing the reproduction system. (1) Disk, (la)-ROM section, (lb)
・PROM section (additional section), (2)...Key operation section (
Input section), (3)...Display section, (5)...Map search IIJa 17 section (selection section), (13)...Disc writing section (recording section), (18)...Copy Some, (19)・
... Disc playback section, (20) ... Some operation keys, (2
2)...Destination data detection unit. Figure 1

Claims (7)

[Claims] (1) A map information storage disk having a ROM section in which unique map information is recorded and a write-once section arranged to record information related to the map information. (2) The map information storage disk according to claim (1), wherein the related information is information used to display a destination position on a map. (3) A disk playback system for playing back a map information storage disk having a ROM section on which unique map information is recorded and an addendum section arranged to record information related to the map information, the system including destination information. In response to the input of the ROM
A disc playback system characterized in that a destination is displayed on a display means by searching and playing back a copy and an addendum. (4) A recording and reproducing system for a map information storage disk, which has a ROM section in which unique map information is recorded, and a write-on section arranged to record information related to the map information, the system comprising: a ROM section in which unique map information is recorded; a playback section that reads map information and plays it back; an input section that inputs the current location and a desired destination; a selection section that selects map screen information corresponding to the current location and destination from the ROM section of the disk; A recording/reproducing system comprising: a recording section that records address information of the current location in the write-once section of the disk, and also records address information of the destination in association with the map screen information on the write-once section of the disk. (5) The input section further includes a map information input section for inputting regional information, and the recording section associates the regional information with the address information and map screen information of the destination, and records it in the additional recording section of the disk. 5. The recording/reproducing system according to claim 4, wherein the recording/reproducing system records information on a computer. (6) Claim (4) characterized in that the reproduction section inputs reproduction information to a display section to display a desired map screen, and inputs the reproduction information to a copying section to cause the map screen to be copied. Or the recording and reproducing system described in (5). (7) The recording and reproducing system according to claim 6, wherein the copying unit automatically changes the size of the map and/or the size of the copy paper depending on the number of combinations of map screens.