JPH11257980A - Optical disc, optical disc player and car navigation system employing it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disc requiring no troublesome operation for setting a goal, an optical disc player and a car navigation system which can be connected removably with the optical disc player. SOLUTION: The optical disc has a video area 305 comprising a plurality of pieces of video information concerning to facility, and information for managing the video information. The video information managing information is recording information for delivering a command for notifying a car navigation system with positional information corresponding to video information selected by a specified operation of an operator being performed upon play back of the video information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk on which video information and the like are recorded, and a reproducing apparatus therefor. The present invention relates to an optical disk reproducing device and a car navigation system in which the optical disk reproducing device is connected to or integrated with a car navigation device.

[0002]

2. Description of the Related Art In recent years, GPS (Global Positioning Syst
Car guidance systems using em) (called car navigation systems or car navigation systems) are becoming necessities for car enthusiasts.

[0003] The GPS refers to an in-vehicle system that receives a radio wave radiated from an artificial satellite orbiting above the altitude of about 21 km and measures the current position of a vehicle traveling on the ground. A GPS antenna for receiving, a positioning unit for measuring the longitude, latitude, and altitude of the current location, and a C on which map information referred to when guiding the traveling vehicle is recorded.
A drive mechanism for loading a D-ROM and controlling the readout of the D-ROM, a small-sized display for displaying a map image of the area around the longitude and latitude measured in the map information, and a control for performing various controls in the car navigation device. Microcomputer and
An operation unit that receives operations from a remote controller, a keypad, a trackball, or the like.

According to the trend of the car industry in recent years, there is a tendency for a car navigation device to have a function of supporting a more advanced driving of a car in addition to a function of locating a current position. Representative functions for driving assistance include a destination setting function, a current position setting function, a route search function, and the like.

[0005] As a destination and present location setting function, a part of a detailed road map for driving a car is displayed on a small display for a car, and a cursor is moved up, down, left and right on a map image, and a cursor is moved to a desired location. When the cursor is positioned and the operator performs a confirming operation by pressing the cursor key, the car navigation device sets the point where the cursor is currently located as the destination or the current position. The route search function automatically refers to road node data indicating a passing point of a road to automatically search for an optimal route connecting the set current position and destination.

[0006] In recent years, with the recent increase in the density of optical discs and the improvement of video data compression techniques, Video CDs,
After converting a moving image such as a DVD to digital data,
Optical disks, which are compressed and recorded on an optical disk, have been put to practical use and have become widespread. In these optical disks, data is configured on a file system such as ISO9660 and ISO13346, and the video data is composed of main video data, sub-video data, and audio data, and is recorded by being divided into small areas (called objects).

[0007] Management information for managing these objects is also recorded at the same time. The management information is managed as a series of objects called a chain. The management information determines the playback order of each chain, and changes in the playback video due to interaction from the operator.

An optical disc reproducing apparatus for reproducing these optical discs includes a mechanical unit including an optical pickup for reading digital data on the disc, a spindle motor for rotating the disc, and a traverse mechanism for moving the optical pickup in the radial direction of the disc. A spindle motor of a mechanical unit, two actuators for tracking and focusing of an optical pickup, a mechanism control unit for controlling a traverse mechanism, a signal processing unit for binarizing a reproduced signal from the optical pickup after waveform-equalizing it, and further performing error correction; A decoder unit that separates the main video data, sub-video data, and audio data from the playback data corrected by the signal processing unit, decodes each, and combines the main video data and sub-video data, and a remote control that inputs the operation from the operator , Receive data from remote control Mechanism control unit, signal processing unit, and a system controller for controlling the decoder unit.

[0009] When an optical disk on which a video signal is recorded is inserted into the optical disk reproducing apparatus configured as described above,
The system control unit reads the file system information recorded on the optical disc by controlling the mechanism control unit, and acquires the address of the video signal management information from the information recorded on the file system. Next, the management information is read and the address of the object to be reproduced is obtained.

Next, necessary object data is read and transferred to the decoder unit. The decoder section separates the main video, the sub video, and the audio from the header attached to each object of the transferred AV data, and demodulates each object. Thereafter, the main video and the sub video are combined, and output as an audio output and a synthesized video output to a display connected to the device.

With the recent travel boom, travel guides using not only video tapes but also such optical disks as optical media have been commercialized. The user first examines the sightseeing spots at home using such a travel guide and determines a destination. After that, a car navigation device mounted on the vehicle is operated to display a map of a region where a travel is planned on a display, and a destination is searched for and set while scrolling the map.

[0012]

However, in the above-mentioned conventional optical disk and car navigation system, the purpose of displaying the video information and guiding the route is achieved, but the map image displayed based on the map information is
It is a practical model that mainly draws roads with line drawings and expresses famous buildings and sightseeing spots with character strings. The operation of moving a cursor and setting a destination while looking at a map image composed of a line drawing and a character string is not interesting, and may even be annoying.

Also, since a map image of a district where various buildings exist is drawn with a large number of character strings and line drawings densely arranged, it is difficult to know at which point the destination is located. Land setting tends to take time. The setting of a destination is generally performed in a motor vehicle equipped with a car navigation device immediately before departure of a travel. If it takes time to set a destination, the departure of the car will be delayed. When traveling far away, the whole family may be in a car early in the morning, but if the departure time of the car is delayed for destination setting, it may be caught in traffic.

Further, depending on the car navigation, a guide of a sightseeing spot by a still image and voice is added to map data,
Some attempt to simplify the determination and setting of destinations. However, ideally, the decision of the destination of travel should ideally be made in a relaxed manner in the living room of the whole family. Conventionally, an optical disk used in a car navigation system is not compatible with an optical disk playback device for home use, and it is not possible to see information on a tourist spot at home.

In order to determine a travel destination and set a destination in a relaxed environment at home, there is a method of using a portable, so-called handy-type car navigation device. In other words, the hand-held car navigation device is removed from the vehicle body the day before the trip, and the destination is set in a relaxed mood by taking it home. When the destination is set in the house in this way, the destination can be set reliably, but it takes time to attach the handy type car navigation device to the vehicle body again. This attachment work may require additional work such as antenna adjustment, and if these additional works are troublesome, the departure time will also be delayed.

In addition, during a tedious travel time on an expressway or the like until the user arrives at the destination of the travel, the tourist guide video tape or the tourist guide video disk used for determining the destination of travel or excursion at home can be used. In order to reconfirm, it is necessary to install a playback device that can reproduce the media used at home for in-vehicle use in the cabin, and considering the limited space in the cabin and the cost required for purchase, it is not realistic. Absent.

Car enthusiasts have a strong desire to set destinations more happily, and manufacturers who are involved in car navigation product development want to meet this demand. The problem has not been eliminated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. An optical disk, an optical disk reproducing apparatus, and an optical disk capable of eliminating the trouble of setting a destination by making the destination setting fun. A first object is to provide a car navigation system including a car navigation device to which a playback device can be connected. It is a second object of the present invention to provide an optical disk that can easily select a travel destination and a tour destination at home and can be used in a vehicle cabin.

[0019]

An optical disk according to the present invention comprises a plurality of video information items related to facilities and a video area composed of video management information for managing the video information. Information for sending a command for notifying the car navigation device of position information corresponding to video information selected by a predetermined operation performed by an operator performed during reproduction is recorded. The present invention records a command for notifying position information to a car navigation device on an optical disc, and notifies the car navigation device of position information such as latitude and longitude of a facility desired by the operator by a simple operation of the operator. An optical disk that can be used is obtained.

An optical disc reproducing apparatus for reproducing an optical disc according to the present invention includes a mechanism section including an optical pickup for reading digital data recorded on the optical disc, and a decoder section that corrects binary data output from the optical disc by correcting errors. The result of analyzing the commands contained in the video management information recorded on the optical disk while controlling the mechanism control unit, the signal processing unit, the decoder unit, etc., by receiving the signal processing unit to be output and the input data from the remote controller A CPU for determining the order of reproduction, etc.,
A decoder section which separates the reproduced data, which has been error-corrected by the signal processing section, into main video data, sub-video data and audio data, decodes the data, synthesizes the main video data and sub-video data, and sends the synthesized audio data to the car navigation device. And a communication means for transmitting position information to a car navigation device externally connected via a first cable and performing control communication between the CPU unit and the car navigation device.

According to the present invention, a command included in video management information recorded on an optical disc is analyzed,
When a car navigation device is connected to a video disc playback device, by notifying the location information by a simple operation, a specific map image including the location information is displayed, and the location is displayed with respect to the destination. An extremely easy-to-use car navigation system that can provide route guidance is obtained.

The car navigation system according to the present invention comprises an optical disk reproducing apparatus for reproducing an optical disk and a car navigation apparatus connected by communication means. The car navigation apparatus displays map information and guides a route to a target position. A driving support means is provided, and when a notification of the position information is received from the optical disk reproducing device, a position corresponding to the position information is displayed on a map. According to the present invention, a car navigation system that displays a specific map image including position information with a simple operation can be obtained by connecting a car navigation device to an optical disc reproducing device.

In the car navigation system according to the present invention, a map information area including map information and route guidance information is reproduced from an optical disc by an optical disc reproducing apparatus and transmitted to the car navigation apparatus. Analyzes the command that is played back from the optical disk when the operation is performed and is stored in the register of the optical disk playback device, and displays a map including the obtained position information on a display screen, or the position information obtained by the analysis. The route guidance is performed with the destination as a destination.

According to the present invention, when a car navigation device is connected to a video disk reproducing device, the position information is notified by a simple operation, so that a position corresponding to the position information is selected and set as a destination. In addition, an extremely easy-to-use car navigation system that can provide route guidance to the destination can be obtained.

The optical disk reproducing apparatus according to the present invention has a register for setting a specific value reproduced from the optical disk. When a car navigation device is connected, the specific value reproduced from the optical disk is set in the register. It is something to do. According to the present invention, when a car navigation device is connected, a specific value is set in a register, so that the playback order can be changed between a home use and a vehicle-mounted environment with a simple configuration. A device is obtained.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention provides a plurality of pieces of video information relating to facilities and video management information for managing the video information, which are played back by an optical disk playback device connected to a car navigation device. The image management information is provided to the car navigation device to notify the car navigation device of position information corresponding to the image information selected by a predetermined operation performed by the operator when reproducing the image information. Information for sending a command is recorded, and a command for notifying the car navigation device of the position information is recorded on the optical disc,
The simple operation of the operator has the effect of notifying the car navigation device of positional information such as the latitude and longitude of the facility desired by the operator.

According to a second aspect of the present invention, there is provided a car navigation apparatus connected to an optical disk reproducing apparatus for reproducing the optical disk according to the first aspect of the present invention by a communication means, wherein the car navigation apparatus displays map information and displays map information. Driving support means for performing route guidance to the destination position is provided,
When a notification of the position information is received from the optical disk reproducing device, a map including the position information is displayed. By connecting the car navigation device to the optical disk reproducing device, the position information can be easily operated. Is displayed.

According to a third aspect of the present invention, there is provided a car navigation device connected to an optical disk reproducing device for reproducing the optical disk according to the first aspect of the present invention by a communication means, wherein the car navigation device displays map information and displays the map information. Driving support means for performing route guidance to the destination position is provided,
When a notification of the position information is received from the optical disk reproducing device, route guidance is started with a position corresponding to the position information as a destination, and the car navigation device is connected to the video disk reproducing device. In such a case, the location information is notified by a simple operation, so that the location corresponding to the location information can be selected and set as the destination, and the route guidance to the destination can be provided. It has the effect of building a system.

According to a fourth aspect of the present invention, in the optical disk reproducing apparatus, a mechanism unit including an optical pickup for reading digital data recorded on the optical disk, and a binary data output from the optical disk may be erroneously read. A signal processing unit that corrects, temporarily stores, reads and outputs to the decoder unit, and receives input data from the remote control,
A CPU unit for controlling a mechanism control unit, a signal processing unit, a decoder unit, and the like, analyzing a command included in the video management information recorded on the optical disc, and determining an order of reproduction as a result, and the signal processing unit A decoder section which separates the reproduced data error-corrected by the main video data, sub-video data and audio data and decodes them separately, synthesizes the main video data and the sub-video data, and sends the synthesized video data together with the audio data to the car navigation device; And communication means for transmitting position information to a car navigation device connected to the outside via the cable 1 and performing control communication between the CPU unit and the car navigation device. According to the result of analyzing the command included in the video management information Is connected to a video disc playback device, by notifying the position information by a simple operation, a specific map image including the position information is displayed and the position is guided to the destination. It has the effect of building a car navigation system that is extremely easy to use.

According to a fifth aspect of the present invention, a register is provided in an optical disk reproducing apparatus for reproducing the optical disk according to the first aspect, and position information corresponding to video information is notified to a car navigation apparatus. The command indicating that the position information is to be written into the register is a command for writing the position information to the register in the optical disc playback device. With such a configuration, there is an effect that information transmission to the car navigation device is easily realized.

According to a sixth aspect of the present invention, the register in the optical disc reproducing apparatus defines a behavior of a history of an operation performed by an operator at the time of reproducing a video image or a behavior of the reproducing operation. The register is referred to and updated by video management information or a command recorded in the video information, and a register is used to store a history of operations performed by an operator during video video playback, or to specify the behavior of a playback device. By using a register that can be referenced and updated from the video management information or a command recorded in the video information in order to perform the operation, it is possible to inherit control software assets and LSI of a conventional DVD video device or the like. Since these optical discs can be reproduced by an optical disc reproducing device such as a conventional DVDV player, the user can use the disc at home. Even can play the same optical disk Among them, it has the effect of selecting a destination in a relaxed environment in the home.

According to a seventh aspect of the present invention, the image area comprises an information table in which the image information, the image management information, and the information to be notified to the car navigation device are recorded in a table. The command for notifying the position information to the car navigation device stored in the video management information is a command for writing a pointer value to the information table to the register, and the command is tabulated. By using the data written to the registers as pointers in the table, the transmission of information to the car navigation device can be realized by using the minimum necessary number of registers, and other registers can be used to realize the interactive content that is the original purpose. The effect that can be used for To.

[0033] The invention according to claim 8 of the present invention is characterized in that the register specifies the behavior of the storage or reproduction operation of the history of the operation performed by the operator at the time of reproducing the video image. It is referred to and updated by a command recorded in the video information. Since the register used here is the one used in the conventional optical disc reproducing apparatus, software and LS
It has the effect that the assets of I can be utilized and can be reproduced at home.

According to a ninth aspect of the present invention, in addition to the image area, map information in which map information and route guidance information required for the car navigation device to realize driving support is stored. Area, and the video data, the map information, and the route guidance information are stored on the same disk. Has the effect of providing a usable optical disc.

According to a tenth aspect of the present invention, there is provided a car navigation means for displaying map information and guiding a route by using the map information and the route guidance information reproduced from the optical disc according to the ninth aspect by the optical disc reproducing means. An optical disk playback unit that plays back video in accordance with the video management information with video information recorded in a video information area of the optical disk, wherein the optical disk playback unit performs a predetermined operation by an operator during video playback. At this time, a predetermined numerical value reproduced from the optical disk is analyzed in a register of the optical disk reproducing means, and a map including position information obtained as a result is displayed on the screen of the car navigation means, 10. A car navigation system incorporating an optical disk playback means (video playback function) for the optical disk according to claim 9. By applying to the emissions system,
The circuit for reading the disk, the mechanical parts, and the like can be shared with the car navigation means (driving support means), and the function of effectively using the limited in-vehicle space can be obtained.

According to an eleventh aspect of the present invention, there is provided a car navigation means for displaying map information based on the map information and the route guidance information reproduced from the optical disc according to the ninth aspect by the optical disk reproducing means and performing route guidance. An optical disk playback unit that plays back video in accordance with the video management information with video information recorded in a video information area of the optical disk, wherein the optical disk playback unit performs a predetermined operation by an operator during video playback. At this time, a predetermined numerical value reproduced from the optical disk and stored in a register of the optical disk reproducing means is analyzed, and the position information obtained as a result is used as a destination to cause the car navigation means to start route guidance. The optical disk according to claim 9 is provided with a built-in optical disk reproducing means (video reproducing function). By applying the present invention to a navigation system, a circuit for reading a disk, a mechanical component, and the like can be shared with a car navigation unit (driving support unit), so that a limited vehicle space can be effectively used. Having.

According to a twelfth aspect of the present invention, the video data recorded in the video area is constituted by a chain composed of a combination of a plurality of moving picture data and sub-picture data. The video management information recorded in the sub-video data determines the reproduction order of one or more chains, and further specifies a chain to start reproduction when an operator selects a button realized by the sub-video data. An optical disk having an area to be displayed, wherein there are a plurality of menu screens each composed of a chain including sub-video data having the button, and each menu screen has a region name corresponding to the sub-video data and audio data. Alternatively, the screen configuration is such that the operator can be recognized by the main video data, and each button on each menu screen is It is a chain that introduces facilities and sightseeing spots in the area with the name of the area, and the structure of each menu screen is hierarchically configured for each area or for each genre of facility. Since the image of the facility can be called, the setting of the destination for the car navigation device can be easily realized, and the operation of selecting the destination in the car navigation can be realized by a simple operation.

According to a thirteenth aspect of the present invention, there is provided an optical disk according to the first, fourth, sixth, seventh, eighth or ninth aspect of the present invention. Video data is composed of a plurality of chains, and the video management information recorded in the video area is 1
An optical disc adapted to determine a reproduction order of one or more chains, the optical disc reproducing apparatus belonging to a first category constituting a car navigation system comprising an optical disc reproducing apparatus connected to the car navigation apparatus by a communication means; And the video management information is reproduced by any of the optical disk reproducing devices belonging to the second category not connected to the car navigation device, and the video management information is reproduced by any of the optical disk reproducing devices belonging to the first or second category. The playback order of the chains is made different from each other, and can be played back by a car navigation device having an optical disk playback function or a home optical disk player. To change By the, in the optical disc player for home it is possible creating content so as not to display unnecessary menu screen, an effect that can be manufactured content the user easily operate.

According to a fourteenth aspect of the present invention, there is provided an optical disk according to the first, fourth, sixth, seventh, eighth or ninth aspect of the present invention. The video data is composed of a plurality of chains, and the video management information recorded in the video area is a chain that starts playback when an operator selects a button realized by sub-video data. Is designated, and is reproduced by both the optical disc reproducing device belonging to the first category and the optical disc reproducing device belonging to the second category, and the video management information belongs to the first or second category. When each chain is played back by the optical disc playback device, the presence or absence of buttons or the number of buttons to be played back in some or all of the video It can be played back by a car navigation device having an optical disk playback function or a home optical disk player. By changing the playback order, the menu configuration, and the number of buttons in the two players, A home optical disc player can produce contents so that unnecessary menu screens are not displayed, and has the effect of producing contents that are easy for the user to operate.

According to a fifteenth aspect of the present invention, there is provided an optical disk according to the first, fourth, sixth, seventh, eighth or ninth aspect of the present invention. The video data is composed of a plurality of chains used for normal reproduction and a menu chain called by a menu operation of an operator, and the video management information recorded in the video area is configured to call the menu chain by the menu operation. An optical disk reproducing device having an area for storing a command for determining a chain reproduction order before reproducing each chain, wherein the optical disk reproducing device belongs to the first category and the second
The video management information is reproduced by any of the optical disc reproducing devices belonging to the category
The menu chain reproduced by the menu operation is different depending on which of the optical disc reproducing devices belongs to the category of, and can be reproduced by a car navigation device having an optical disc reproducing function or a home optical disc player. In the two players, by changing the reproduction order, the menu configuration, and the number of buttons, it is possible to produce content so that unnecessary menu screens are not displayed in a home optical disc player, This has the effect that content that is easy for the user to operate can be produced.

According to a sixteenth aspect of the present invention, there is provided a register for reproducing the optical disk according to the thirteenth, fourteenth or fifteenth aspect and setting a specific value reproduced from the optical disk, When a car navigation device is connected, a specific value reproduced from the optical disk is set in the register. When a car navigation device is connected, a specific value is set in the register. By doing so, it is possible to change the order of playback between home and in-vehicle environments with a simple configuration, and when playing video with buttons, buttons that have no meaning unless car navigation is connected With a home DVD player or a video disc player without a car navigation device connected If you have an effect that it is possible to manufacture a content capable of creating content to not display on the screen.

According to a seventeenth aspect of the present invention, an optical disk according to the thirteenth, fourteenth, or fifteenth aspect is reproduced, and the first optical disk is reproduced by data recorded in the video area of the optical disk. Discriminating the content of the optical disc as to whether the reproduction state is different depending on whether the reproduction is performed by the optical disc reproduction apparatus belonging to the second category or the optical disc reproduction apparatus belonging to the second category, and whether or not video information is included. , A car navigation device is connected, and as a result of the content determination, it is determined that the playback state is different depending on whether the playback is performed by the optical disk playback device belonging to the first category or the optical disk playback device belonging to the second category. In this case, a specific value is set in each of the registers. By setting the value of the register used for setting the playback order for the in-vehicle environment based on both the result of judging the content and whether the car navigation device is connected or not, the operation is performed according to the existing video disc standard. Even if a command that updates the value of a register is recorded on a given video disc, it can operate without erroneously recognizing the command as a command for a car navigation device. It has the effect of being able to play both the produced optical disc and the optical disc according to the invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and FIGS. 1 to 22. The optical disc in the embodiment of the present invention is a digital video
A disk (hereinafter abbreviated as DVD) is preferable.

(First Embodiment) First, FIGS.
With reference to FIG. 6, a first embodiment of the present invention will be described. FIG. 1 is a diagram showing the structure of a DVD disk.
(A) is a diagram showing the appearance of a DVD disk, (B) is a cross-sectional view thereof, and (C) is a partially cross-sectional enlarged view in which a partial cross-section is enlarged. The DVD disk 107 includes a first transparent substrate 108, an information layer 109, and a second transparent substrate 1 from the lower side of the drawing.
11 and a printing layer 112 for label printing.

The information layer 109 has a reflective film such as a metal thin film adhered to the surface in contact with the first transparent substrate 108. The concave and convex pits shown in the figure are formed at a high density on the reflective film by a molding technique.

Next, the information layer shown in FIG. 1 will be described with reference to FIG. FIG. 2 is an enlarged view of the information layer shown in FIG.
(A) is a detailed diagram of the pit shape of the information layer, (B) is an arrangement diagram of the pit shape of the information layer, and (C) is a diagram showing the contents of the information layer. As shown in FIG. 2A, the length of each pit of the information layer 109 is 0.4 μm to 1.87 μm, and
It is helically arranged at a spacing of 0.74 μm. FIG.
By irradiating each pit array arranged as shown in FIG. 3B with a light beam, information is extracted as a change in the reflectance of the light spot 114. A row of pits oriented along the direction of rotation of the disk forms many physical sectors.

To guarantee the reliability of data reading,
Each sector has an internal configuration shown in FIG. FIG.
As shown in (C), the physical sector has a sector header area used to identify each sector address, a user data area in which data of 2 Kbytes is stored, and an error in the user data area of the same sector. It consists of an error correction code storage area for storing correction codes, and when data of the same sector length is read from the spiral track,
The disk reproducing apparatus is made to perform error detection on the data in the user data area using the error correction code, and to perform error correction.

Next, the logical structure of the disk will be described with reference to FIG. 3A and 3B show the logical structure of the disc, wherein FIG. 3A shows a physical layer, FIG. 3B shows a file layer, and FIG. 3C shows an application layer. That is, the hierarchical structure is composed of a physical layer having a logical structure for firmware of a disk reproducing device, a file layer having a logical structure of a file system, and an application layer in which application software of the file system is recorded. .

First, a physical layer having a logical structure for firmware will be described. The firmware is a control program for controlling a mechanical system including a spindle motor for driving a disk and an actuator for an optical pickup. The logical format of the lowermost layer is such that the lead-in area 301
And a volume area 302 following the lead-in area,
Following the volume area, there is a lead-out area 303, with reference to which the firmware drives the spindle motor and the actuator of the optical pickup.

In the "lead-in area", data for stabilizing the operation at the start of reading of the disk reproducing apparatus and the like are recorded.
On the other hand, the "lead-out area" is an area for notifying the playback apparatus of the end of playback, and has no significant data recorded therein. The “volume area” is an area in which various types of data are stored, and manages the physical sector to which it belongs as a logical block. A logical block is identified by firmware in a unit in which a serial number is assigned to consecutive physical sectors, with the first physical sector of the data recording area being numbered zero.

The file layer and application layer will be described.
The file layer and the application layer exist on the volume area shown in FIG. The file layer is divided into a volume management area 304 and a file area 305. The volume management area stores file system management information for managing a plurality of logical blocks as files in accordance with ISO13346. File system management information is the file name of each of multiple files,
This information clearly indicates the correspondence with the address of the logical block group occupied by each file, and the disk reproducing device realizes disk access in file units by using the file system management information.

That is, when a file name is given from the outside, all the logical block groups occupied by the file are calculated by referring to all the file management information, and these logical block groups are accessed to obtain a desired digital data. Retrieve only data. The logical structure of the application layer will be described.
In the application layer, one or both of a video area 307 for video playback and a map information area 306 can be recorded.

Next, the structure of the video area will be described with reference to FIG. FIG. 4 is a diagram showing a data structure of a video area. This video area exists as a part of the file area 305 shown in FIG. 3B and is as shown in FIG. As shown in FIG. 4, a video area 307 includes a video manager 401 and a video title set 402.
Composed of The video manager 401 displays a menu (volume menu) for introducing a plurality of video titles included in the video title set 402, and displays and reproduces any one of the video titles by performing an operation for confirming the volume menu. File. The video manager 401 includes volume menu video information 4012 that is video information for displaying a volume menu on a disc display, and volume menu video management information 4011 that is video management information thereof.

The video title set 402 is composed of title menu video information 4022 which is video information of a menu (title menu) for introducing a plurality of video portions included in the video title, and video information of a plurality of video portions (facility introduction videos). It is composed of title set video management information 4021 which is video management information of a certain video title video information 4023, title menu video information 4022, and video title video information 4023.

The volume menu video information 4012, the title menu video information 4022, and the video title video information 4023 include main video information, sub video information (sound sub video data), It is a collection of information called VOBU including audio information. The reproduction order of these video and audio is determined by the volume menu video information 4012 and the volume menu video management information 401.
1 and also title menu video information 4022,
The video title video information 4023 is determined by the title set video management information 4021.

Next, the VOBU will be described with reference to FIG. FIG. 5 shows a VOBU managed by volume menu video management information and title set video management information.
It is a figure showing the concept of. VOB recorded in video information
U is managed by video management information in units of CELL. The “cell reproduction information table” recorded in the video management information includes the address of the first VOBU and the address of the last VOBU of each cell for each cell.

A program (hereinafter referred to as PG) is composed of one or a plurality of CELLs (a plurality of moving image data). In addition, a chain is configured by a combination of a plurality of moving image data and sub-picture data. PG is a unit indicating each chapter in a movie. The “entry cell number table” recorded in the video management information includes the head cell number of each PG.

One PG or a plurality of PGs
A GC (program chain) is configured. The “PGCI general information” (PG chain information) recorded in the video management information includes information on the total number of PGs included in the PGC. For each PG, a part-of-title number (hereinafter referred to as a PTT number) can be assigned for display and cueing.

For recording two movies on the same disc, a plurality of PGCs can be managed together under the concept of a title. In the video management information, a “part of title search pointer table” can be recorded for each title. The part-of-title search pointer table includes the PGC number of the PTT included in each title and information indicating the PG number.

In the video management information, a command for performing a dialog with the operator can be stored. The "command table" recorded in the video management information is a PGC
, And a command (hereinafter referred to as a pre-command) and a command (hereinafter referred to as a post-command) processed at the time when reproduction of all the corresponding PGCs is completed. The “highlight information” recorded in the video management information includes information of a command corresponding to a button arranged on a screen realized by a sub video.

The command is not required to be stored in a register (specific storage means) in the playback apparatus.
7, FIG. 22), the first memory (DRA)
M) or a RAM unit (S-RAM), etc. (the same applies hereinafter), and enables the change of the reproduction start position and the like. It is not appropriate to describe all the commands in detail here,
The description of the specific contents of the disc described below will be made as necessary.

Next, with reference to FIG. 6 and FIG. 7, an example of a reproduced image of an optical disk for performing sightseeing guidance in the present embodiment will be described. FIG. 6 is a diagram showing an example of a reproduced video of an optical disc for performing sightseeing guidance according to the present embodiment, and FIG. 7 is a diagram showing a data structure of the optical disc shown in FIG.

When the optical disc according to the present invention on which data as shown in FIG. 7 is recorded is inserted into the optical disc reproducing apparatus according to the present invention (the operation of the optical disc reproducing apparatus according to the present invention will be described in detail later). When the navigation device is connected to the optical disk reproducing device, a register of the optical disk reproducing device which can be referred to and updated by a command recorded in the video management information of the optical disk has a 16-word general parameter area (hereinafter referred to as a general parameter area). FFFF is written to GRPM15 of GRPM0 to GRPM15).

In the management information of the optical disk, there is an area called first play PGC (hereinafter referred to as FP).
After inserting the disc, a pre-command for this area is first executed. In the FP, a command to “reproduce the volume menu” is described. When this command is detected by the optical disk reproducing device, the video management information is searched, and the volume menu video recorded as PGC number 1 and PG number 1 in the volume menu area is reproduced. This image is an image as shown in FIG. 6A, in which a character string "Volume Menu" is recorded as a main image.
Further, two buttons are arranged as sub-pictures.

The first is a character string of "Izu region" and the second is a character string of "Hakone region". This disc is presented to the operator with two titles, an introduction video of the Izu region and an introduction video of the Hakone region. Is recorded, and at the same time, a pointing device realized by a remote controller or the like prompts the selection of one of the titles.
Button commands are recorded on these two buttons, respectively, and the first button command has title number 1
The command for instructing the reproduction of the title menu of the PGC1 of the title No. 2 is included in the second button command.
A command for instructing the reproduction of the title menu of GC1 is recorded.

When the operator selects the first button, the optical disk reproducing apparatus starts reproducing the title menu of PGC1 having the title number 1. Prior to this video playback, the optical disc playback device executes a precommand of title number 1 and PGC1 shown in FIG. The value of GRPM15 is 0 in the precommand of title number 1 and PGC1.
Then, a command to reproduce PGC2 is described. As described above, when the disc is inserted, the GRPM15
Since the value of has been rewritten to FFFF by the disc reproducing apparatus, the reproduction of the video of the title menu of the PGC 1 having the title number 1 is started.

This image is as shown in FIG. 6 (B), and the Izu region is configured to search for a destination in the form of a search menu and an Izu sightseeing program in which tourist information is introduced in a TV drama style. The menu screen prompts the operator to select one of the Izu Peninsula travel search. Here, if this optical disk is played back by an optical disk playback device to which no car navigation device is connected, that is, a home DVD player, the value of GRPM15 is not set, and thus the initial value 0 is recorded. Accordingly, when the operator selects the Izu Peninsula of the volume menu, similarly, when the title menu of the PGC1 having the title number 1 is reproduced, the "G
When the value of the RPM 15 is 0, the PGC2 should be reproduced.
The reproduction of the title menu of PGC2 as shown in FIG.

As described above, in an environment where a car navigation device is connected, a menu screen on which a special menu item for searching for a destination is displayed can be displayed. In the case of reproduction, a menu screen is selected such that only an Izu sightseeing program created for enjoying as a normal video image is selected.

This is also the case when the operator selects the menu button provided on the optical disc reproducing apparatus to display the title menu, and the same mechanism is used to determine whether or not the car navigation system is connected to the reproducing apparatus. Alternatively, the title menu video of PGC2 is selected and reproduced. That is, the video management information is configured so that the menu chain reproduced by the menu operation (specific key operation of the operator) is different.

Next, when the Izu Peninsula travel search is selected by the optical disk reproducing device to which the car navigation is connected, the title menu of PGC3 and PG1 shown in FIG. 7 is reproduced. FIG. 6C illustrates this menu screen. This menu screen displays a map of the Izu Peninsula, and places buttons at the four sightseeing points on the Izu Peninsula: Toi, Shuzenji, Shimoda, and Ito.
In each of the button commands of the buttons, a PGC number and a command for reproducing the PG number on a menu screen for selecting a genre of a sightseeing spot limited to a small area are arranged.

FIG. 6D shows an example in which the operator selects the Ito button, in which title menu areas PGC7, PG1 are selected.
It is a picture of. This menu is configured so that the operator can more easily search for a destination for each purpose. Here, when the operator selects the play button, the title menu video of PGC8 and PG1 (FIG. 7) is selected by the same mechanism. In this image, a deformed map around Ito and a button indicating the name of a sightseeing spot corresponding to the genre of “playing” shown in FIG. Around Ito <Play> menu,
Buttons for "Omuroyama" and "Cactus Park" are arranged.

When the operator selects the cactus park button, the button command of the cactus park button describes a command to reproduce PTT1 of title 1.
Title 1 and PTT1 are video data of a video title area, and are PGC1 and PG1 videos. This PGC pre-command describes a command that “if the value of GRPM15 is 0, no sub-picture is displayed”. GRPM
Reference numeral 15 indicates that the optical disk reproducing device writes FFFF after confirming the connection of the car navigation device when the disk is inserted. Thus, the sub-picture is reproduced and synthesized on the screen.

This image is the image shown in FIG. 6 (F), and a video of the cactus park appearance taken by video is reproduced for several seconds together with the introduction of the park and the inside by female narration. The sub-picture is a button indicating a character string of “go”, and is continuously arranged at the lower right of the screen during reproduction of the moving image. The button command for this button is a dummy PGC
Is a command to reproduce PTT10. PT
T10 (FIG. 7) is PGC10, P of the video title area.
It is an area managed by G1 and does not have video data but exists only for executing a pre-command.

In the pre-command, AAAA can be written in GRPM0, 353038 can be written in GRPM1, 2 and
It is described that 393357 can be written in GRPM3 and GRPM4. Here, AAAAA written in GRPM0 is a code indicating that the numerical values described in GRPM1, 2, 3, and 4 are the latitude and longitude position information with respect to the car navigation device. GRPM1 and GRPM2 are data of the north latitude of the cactus park, and GRPM3 and 4 are values obtained by subtracting 100 degrees from the data of the east longitude. In other words, this GR
PM0 to PM4 are commands for notifying the connected car navigation device of the position information corresponding to the video information.

As will be described later, when the optical disc reproducing device notifies the car navigation device of the position information by updating the GRPM, the connected car navigation device displays the map data indicating the corresponding position on the monitor. indicate. The operator can set the display map position of the car navigation device by a very simple operation after confirming the information about the facility by voice or moving image by searching on the optical disk.

Title 1 and PTT1 (FIG. 7) are video data in the video title area, and when the video of PGC1 or PG1 is selected, a command to "display no sub-picture if the value of GRPM15 is 0" is executed. As described above, when the video is played back, if the car navigation system is not connected to the optical disk playback device to be played back, the GRPM 15 is set to the initial value of 0.
Is written. In this case, the video of the title 1 and PTT1 introducing the cactus park is reproduced without the sub-video being combined.

That is, as shown in FIG. 6H, the reproduction is performed without any buttons. That is, when reproducing a chain, the video information management information is configured such that the presence or absence of a button to be reproduced differs depending on the optical disk reproducing devices (described later) belonging to the first and second categories.

Further, if a command is implemented to switch the sub-picture stream to be selected according to the value of the GRPM 15, the number of buttons to be reproduced differs depending on the optical disk reproducing devices belonging to the first and second categories. Video information management information can also be configured.

Further, in the optical disc according to the present embodiment, the configuration of each menu screen is hierarchically configured for each region and for each genre of the facility, and the operator can search for the destination or the searched destination. The configuration is very convenient for confirming the contents in advance by using a moving image, a still image, or a sound.

(Second Embodiment) Next, FIGS.
A description will be given of an example of a playback video of an optical disc that implements the “recommended drive course” according to the second embodiment of the present invention with reference to FIG. FIG. 8 is a diagram showing an example of a reproduced video of an optical disc realizing the “recommended drive course” according to the second embodiment of the present invention, and FIG. 9 is a diagram showing a data structure of the optical disc shown in FIG.

When an optical disk is inserted, the optical disk reproducing device determines whether or not a car navigation device is connected.
5 is written with FFFF, and then the command described in FP is executed. In the present embodiment, PGC number 1 and PG number 1 recorded in the title menu area (see FIG. 9)
To play. Here, as shown in FIG. 8 (A), the cute older sister executes a narration “Where are you going to drive today?” And executes a command describing “can reproduce PGC number 2” described in the post command. ,
The drive course selection menu of PGC number 2 in the title menu area is automatically reproduced (see FIG. 8B).

FIG. 8B shows “Izu” and “Hakone”.
Three buttons for displaying a character string “Nikko” are arranged. Here, the button command of the Izu button describes a command to play back PGC1 and PG1 in the video title area. This command is executed when the operator selects the Izu button, and the PGC in the video title area is
1, the pre-command of PG1 is executed. In this pre-command, a command to reproduce PGC10 if GRPM15 is other than 0 is described.

Therefore, here, FFFF is added to GRPM15.
Is written, the pre-command of the PGC 10 is executed. This PGC dummy PGC is GRPM0
Exist only for the purpose of writing predetermined data from. Here, data for notifying the car navigation device of the position information with the latitude and longitude information of the Ito region is recorded.

Here, the connected car navigation device automatically sets a destination and starts route guidance.
The selection of the external AV input of the display is automatically performed by the car navigation device, and the display screen is switched from the video image up to now to the image of the car navigation device (see FIG. 8C). After the route guidance is performed by the car navigation device, the car navigation device switches the input on the display to the mode of the optical disc reproducing device.

Since the command to reproduce PGC2 is described in the post command of the dummy PGC of the PGC 10, the video of the PGC 10 is reproduced on the screen. In this image, a character string of “I arrived at Izu” is displayed, and a menu screen prompting the operator to set further detailed destinations beyond Izu is displayed. (See FIG. 8E.) Here, when the car navigation device is not connected (for example, a home DVD player), GR
The initial value 0 is written in PM15.

When the operator selects the Izu button in the state shown in FIG. 8B, the PGC in the video title area is displayed.
1, the pre-command of PG1 is executed. Here, this command is a command to reproduce the PGC 10 if the GRPM 15 is other than 0. Therefore, this command is ignored and the video of the PGC 1 is reproduced. As shown in FIG. 8D, a digest of the scenery seen from the window of the car to the Izu region is reproduced from this video. After that, the "I arrived at Izu" screen is reproduced as shown in FIG.

When the present optical disc is reproduced in this manner, the video management information is configured so that the reproduction order of the chains reproduced by the optical disc reproducing apparatuses belonging to the first and second categories is different.

According to this optical disc, at home, while simulating the drive, grasping the situation of the drive road to go someday, the drive course is scheduled as if oneself is driving. And enjoy the video while consulting with the family. Further, in an optical disk reproducing apparatus to which a car navigation device in a vehicle compartment is connected, it is possible to easily set a destination.

Next, the map information area in the embodiment of the present invention will be described with reference to FIG. FIG. 10 is a diagram showing an example of a data format stored in the map information area of the optical disc according to the embodiment of the present invention. That is, the optical disc in the embodiment of the present invention has a video area and a map information area. The map information area is recorded in a “DVD other zone” as shown in FIG.
It is a file of various data for car navigation devices.

As shown in FIG. 10, the map information area is
"File label" and "Map data management information"
"Map data set", "Road node data management information", "Road node data set", "Landmark data management information", "Landmark data set"
Consists of

The "file label" includes the version name of the map information area, the signature of the creator, and the date of creation. The “map data management information” includes a relative address to each map data included in the “map data set” and a scale of the map data. The “map data set” includes a plurality of map data. "Road node data management information"
It includes the relative address to each road node included in the "road node set" and the scale of the road node.

The "road node data set" includes a plurality of map data. "Landmark data management information"
It includes the relative address to each landmark data included in the “landmark data set” and the scale of the landmark. The “landmark data set” includes a plurality of landmark data.

Next, map data, road node data, and landmark data will be described with reference to FIGS. FIG. 11 is a diagram showing an object of the map data in the present embodiment, and FIG. 12 is a diagram showing what contents of the map data shown in FIG. 11 are converted into data.

First, referring to FIG. 1, it is impossible to describe in a word what the map data, road node data, and landmark mean, so what kind of concept is used to convert the map into data? Will be described, and what kind of objects in the real world are represented by the map data, road node data, and landmark data will be described.

In FIG. 11, a coordinate system m2 is a coordinate system expressing the topography m1 to be recorded as a map at a reduced scale m4. The coordinate system m3 is a coordinate system that represents the topography m1 to be recorded as a map at a reduced scale m5 (m5> m4). The map data sets one cell in these coordinate systems as an object.

In the coordinate system m2, the areas A, B, C, D, E, F, G, H, and I corresponding to the nine cells are expressed as one map data, and in the coordinate system m3, four cells are used. Are represented as one piece of map data.

Map data expressing the same district in a plurality of coordinate systems has an upper and lower hierarchical relationship. For example, since the map data A, I, U, and D represent the northeast, northwest, southeast, and southwest of the map data in detail, the map data I is the upper layer of the map data A, I, U, and D. Map data A, B, C, and D are map data in a lower layer of the map data I.

FIG. 12 is a diagram showing the contents of map data I and map data A, B, C and D. In the terrain m1, in the city area I, the national road P1 crosses the east and west in the central part, and the city roads P2, P3, P4
P7 and P8 are provided. Also, buildings t1, t
There are 2, t3, t4, and t5.

The objects of the landmark are buildings and facilities that can be targets when visiting the district, such as famous sightseeing spots, government offices, medical facilities, etc. existing in each district. The objects of the road node data are intersections existing on national roads and city roads, and express what routes the national roads and city roads have. In the coordinate system m2, the national road P1 is at the intersection C1, C
Road nodes R1, R corresponding to 2, C3, C4, C6
2, R3, R4, R6, and the buildings t1, t
2, t3, t4, t5 are the landmarks k1, k2, k
3, k4 and k5.

In the coordinate system m3, the national road P1 (terrain m1) is represented by road nodes r1, r2, r3, r4, r6, and the buildings t1, t2, t3, t4, t5 are the landmarks k1, These are represented by k2, k3, k4, and k5. The city road P2 is represented by road nodes r7 and r10, and the city road P3 is represented by road nodes r7 and r11. The city road P4 is represented by road nodes r8, r12, and the city road P6 is represented by road nodes r14, r15, r16.
Is represented by

Next, a data format for expressing a map based on the above concept will be described with reference to FIG. FIG. 13 is a diagram showing a data format for expressing a map, (A) is a diagram showing a data format of map data, (B) is a diagram showing a data format of road node data, and (C) is a landmark. It is a figure showing the data format of data.

In FIG. 13A, “upper left longitude”
The "upper left latitude", "lower right longitude", and "lower right latitude" indicate where the district corresponding to the map data is located in the coordinate system m1. The “link information (1) to the 8-neighbor map data” indicates which district is adjacent to the northwest direction. "Link information (8) to 8 neighborhood map data"
Indicates which district is adjacent to the north. The “link information (3) to the 8-neighbor map data” indicates which district is adjacent in the northeast direction. "Link information (8) to the 8-neighbor map data" indicates which district is adjacent in the east direction.

The “link information (8) to the 8-neighbor map data” indicates which district is adjacent in the southeast direction. "8 Link information to nearby map data (6)"
Shows which districts are adjacent in the south direction. The "link information (7) to the 8-neighbor map data" indicates which district is adjacent to the southwest direction. The "link information (8) to the 8-neighbor map data" indicates which district is adjacent in the west direction.

"Link information to map image data" indicates an address of image data indicating a bird's-eye view of a district corresponding to the main map data. The "link information to the upper scale map data" indicates the address of the road node when there is a higher scale road node in the present road node. "Link information to lower scale map data" indicates the address of the road node when there is a lower scale road node in the present road node.

[Link Information to Landmark Data]
Indicates all the addresses of landmarks to be arranged on the image data indicated by the "link information to map image data", if any. "Link information to road node data" is "Link information to map image data"
If there is a road node to be arranged on the image data indicated by, the address of the road node table describing all the addresses is indicated.

With such a format, it is possible to specify which area of the map data is adjacent in the same coordinate system. The map data can specify what map data exists in the upper coordinate system and the lower coordinate system. It is possible to specify what landmarks and road nodes exist in the same coordinate system.

Next, with reference to FIG. 13B, a data format of a road node for expressing a road with the above concept will be described. "Road node latitude, longitude"
The latitude and longitude of an intersection corresponding to a road node are shown.
"Road type information" indicates the type of the road where the intersection corresponding to the road node is located. That is, the "road type information" indicates the road width, the number of lanes, and the national road information of the road.

"Link information to lower scale map road node" indicates the address of the road node if there is a lower scale road node than the present road node. "Link information to higher scale map road node" indicates that if there is a road node of a higher scale than this road node, that road node
Points to the address of the "Number of adjacent nodes" means that there is at least one road node adjacent to this road node.
The use of the road node is shown. The "link information to adjacent node" indicates all addresses of the road node if there is at least one road node adjacent to the road node.

The data format of the landmark will be described with reference to FIG. "Latitude and longitude of landmark" indicates the latitude and longitude of a building corresponding to the landmark. "Landmark type"
Indicates the type of the building corresponding to the landmark. That is, the "road type information" indicates whether the building is an amusement park or a hospital.

Next, referring to FIG. 14, according to the data formats of FIGS. 13A, 13B and 13C,
FIG. 12 shows an example of how the data of the district I, the district A, the district A, the district C, and the district D are converted into data.

FIG. 14 is a diagram showing map data, landmarks, and road node data representing the district I, the district A, the district A, the district C, and the district D. FIG. Then, the map data of District I, the same applies hereinafter),
(B) is lower-level map data (in this example, map data of district c, the same applies hereinafter), (C) is a road node link table, (D) is a lower-level road node link table, and (E).
Is the road node data R1, (F) is the road node data R
4, (G) is road node data r1, (H) is road node data r8, and (I) is a landmark list.

The “link information to 8-neighbor map data” of the higher-level map data (map data of district I) shown in FIG. 14A includes districts A, B, C, D, E, F, G, and H. Link information to the map data address of
"Link information to lower scale map data" of Japanese map data
Indicates the link information to the map data of the districts A, I, C, and D. The "link information to road node data" of the map data of the district I indicates the address of the road node table ((C) in FIG. 14).

The road node table shown in FIG. 14C has road nodes R1, R2, R3, R4,
Contains link information to R5, R6, and R7. The "link information to the adjacent node" of the road node data R1 shown in FIG. 14E includes link information to the road node R2. The "link information to adjacent nodes" of the road node data R4 shown in FIG. 14 (F) includes road nodes R3, R5,
It has link information to R6 and R7.

"Link information to upper scale map data" shown in the map data of the area C in the lower map data shown in FIG. 14B indicates link information to the map data address of the area I. "Link information to lower scale map data" of the map data of the district I indicates link information to the map data addresses of the districts A, I, and D.
The "link information to road node data" of the lower map data shown in FIG. 14B indicates the address of the road node table shown in FIG.

The road node table shown in FIG. 14D includes link information to road nodes r1, r2, r7, and r8. The "link information to the adjacent node" of the road node data r1 shown in FIG.
7 contains link information. The “link information to adjacent nodes” of the road node data r8 shown in FIG. 14H includes link information to road nodes r2 and r4. The landmark list shown in FIG. 14 (I) includes buildings t1, t2,
The landmarks such as t3, t4, and t5 are listed and shown.

Next, with reference to FIGS. 15 and 16, the car navigation system according to the embodiment of the present invention will be described with reference to FIGS. A configuration example will be described. FIG. 15 is a diagram showing a configuration of a car navigation system composed of optical disc reproducing devices belonging to a first category in which an optical disc reproducing device is mounted in a car and the car navigation device and the optical disc reproducing device are connected by communication, and FIG. 16 is a car navigation system. FIG. 3 is a diagram illustrating a configuration of a car navigation system including an optical disk reproducing device belonging to a second category when the device is not connected to the optical disk device.

In FIG. 15, reference numeral 1503 denotes a remote controller (hereinafter, referred to as a remote controller) for operating the optical disk reproducing device 1501 and the car navigation device 1507;
Is a hole for inserting an optical disk, 1506 is a monitor for displaying map data output from a car navigation device and video data output from an optical disk reproducing device.
07 is a car navigation device, 1508 is a map disc insertion hole used for a car navigation device, 15
Reference numeral 05 denotes a first cable for inputting an audio / video output output from the optical disc reproducing device 1501 to the car navigation device 1507. Reference numeral 1504 denotes whether or not the car navigation device 1507 is connected to the optical disc reproducing device 1501. Playback device 150
Reference numeral 1 denotes a second cable for notifying the car navigation device of position information corresponding to video information by a predetermined operation of the operator.

FIG. 16 shows an example of an optical disk reproducing device belonging to the second category when the car navigation device is not connected to an optical disk device, that is, a home DVD player placed in a living room at home.
In FIG. 16, reference numeral 1601 denotes an optical disk reproducing apparatus having no communication means with respect to a car navigation apparatus;
Denotes an insertion hole for the optical disk of the optical disk reproducing device 1601.

(Third Embodiment) Next, a car navigation system according to a third embodiment of the present invention will be described with reference to FIG. FIG. 17 is a block diagram showing a configuration of the optical disk reproducing device of the car navigation system shown in FIG. First, referring to FIG.
The configuration of the optical disk reproducing device will be described.

In FIG. 17, reference numeral 1701 denotes an optical pickup for reading digital data recorded on the surface of the optical disk, a traverse mechanism for moving the pickup in the radial direction of the optical disk as required, and a rotation of the optical disk at a predetermined rotation speed. 1704 is a front-end processor (hereinafter referred to as FEP) for waveform-equalizing and binarizing the data signal read from the pickup of the mechanism 1701.
And 1703, a servo control unit that performs an operation for controlling the pickup, the traverse mechanism, and the spindle unit based on the servo signal output from the FEP unit 1704.
Reference numeral 02 denotes a driver unit that drives the pickup, the traverse mechanism unit, and the spindle unit according to the signal output from the servo control unit 1703.

Also, 1705 corrects the error of the binary data output from the FEP unit 1704 and then stores the corrected data in the first memory 1.
A signal processing unit for temporarily storing and reading out the data in 706 and outputting it to a decoder unit 1707, a first memory 1706 for temporarily storing data for which error correction has been completed, 1707 a main video data for the reproduced data error-corrected by the signal processing unit, A decoder unit that separates and decodes the sub-video data (character data) and audio data, synthesizes the main video data and the sub-video data, and sends them to the car navigation device 1714 via the second cable 1715, and 1708 is a decoder unit Reference numeral 1707 denotes a second memory used as a work for decoding an audio signal and a video signal.

In the present embodiment, the CPU 1709
The CPU has a register for storing a signal from the remote controller 1503, a command reproduced from the optical disk, and the like.
It is used for controlling the unit 1709. Further, the register may be placed in another storage unit such as the first memory 1706 or the RAM unit 1712, for example.

Reference numeral 1709 receives data input by the operator from the remote controller, system-controls the mechanism control unit, the signal processing unit, the decoder unit, etc., and transmits commands included in the video management information recorded on the optical disk. CPU unit that analyzes and determines the order of reproduction as a result of analysis,
1711 is a ROM unit in which the program of the CPU unit 1709 is stored, 1712 is a variable required by the program,
RAM unit for storing data defined by the stack, 1
Reference numeral 710 denotes a car navigation device 171 connected to the outside via a CPU unit 1709 and a first cable 1716.
Communication means for transmitting position information to 4 and performing control communication;
A car navigation device 714 is connected to the optical disc reproducing apparatus according to the present embodiment via the first and second cables 1716 and 1715, displays video information, displays map information, and performs route guidance.

Next, referring to the flowchart of FIG. 18, the mechanism section 170 of the optical disk reproducing apparatus of FIG.
The operation when the optical disk according to the embodiment of the present invention is inserted will be described in FIG. FIG. 18 is a flowchart showing the control of the CPU when the optical disk reproducing apparatus shown in FIG. 17 reproduces the optical disk according to the embodiment of the present invention. First, the CPU unit 1709 executes step 1
At 801, the process waits for an optical disk to be inserted. If inserted, the process proceeds to step 1802 to initialize all GRPMs. Thereafter, in step 1803, it is detected whether or not the car navigation device 1714 is connected via the communication means 1710.
Write FFFF to RPM15.

By writing FFFF in the GRPM 15, it becomes possible for the command of the content (storage information of the optical disk) to refer to the GRPM 15 to make the reproduction order or the menu screen different from the normal one. Thereafter, video reproduction of the inserted optical disk is started in the same manner as a normal DVD player (step 1).
805).

Here, when the operator performs an operation, reproduction is interrupted, access to another video portion is performed, and the like.
Here, when the content side wants the car navigation device to take some action, a command to write a value to GRPM0 is mounted on the content side. When a pre-command or a post-command-installed PGC for writing a value to GRPM0 is selected by an operator's operation on such an optical disc, a conditional branch of “Is GRPM0 updated?” In step 1806 is made. Be yes.

If it is AAAAA indicating a command to the car navigation device, step 1807
Is a conditional branch of yes. Then, step 1808
Thus, the latitude and longitude information written in the GRPMs 1, 2, 3, and 4 are notified to the car navigation device. As described above, the optical disc reproducing device can notify the car navigation device 1714 of the command for the car navigation device 1714 recorded on the optical disc at a necessary timing in synchronization with the operation of the operator.

Further, the optical disk constructed as described above is transferred to an optical disk reproducing device (for example, an optical disk reproducing device to which no ordinary DVD player or car navigation device is connected).
In the case of playback by the optical disc playback device 1601) shown in FIG. 16, even if the GRPM is updated for the purpose of notifying the device to the car navigation system, the GRPM is not evaluated on the video content side, so that playback can be performed normally. . This is DVDVi, whose standard is already unified.
The command for the car navigation device can be implemented in the video content without changing the standard of the deo disc at all.

Next, another operation of the CPU section of the optical disk reproducing apparatus when reproducing the optical disk according to the second embodiment of the present invention will be described with reference to the flowchart of FIG. Do). FIG. 19 is a flowchart showing another operation of the CPU unit of the optical disk reproducing apparatus when reproducing the optical disk according to the second embodiment of the present invention.

First, the CPU 1709 determines in step 19
At 01, it waits for an optical disk to be inserted. If inserted, all GRPMs are initialized in step 1902. Thereafter, in step 1903, the communication unit 1710
Detects whether the car navigation device 1714 is connected, and further checks the volume label (name of the content stored in the medium) of the optical disc recorded in the file system of the optical disc. NAVI ”is written or not, and only when these two conditions are satisfied, the GRPM 15
FFFF is written in (step 1904).

Here, when a car navigation device is connected to the optical disc reproducing device in which the optical disc is inserted, whether the command is described in the pre-command or post command of the optical disc to issue a command for any car navigation device, Alternatively, when the playback order of the video contents is different when the car navigation device is connected, “CAR” is added to the V0lume label. It shall be authored to describe NAVI ".

By writing FFFF to GRPM15, the command of the video content is
, The reproduction order and the menu screen can be changed to a menu screen different from the normal one. Thereafter, video reproduction of the inserted optical disk is started in the same manner as in a normal DVD player (step 1905). Here, when the operator operates, the reproduction is interrupted, access to another video portion, and the like are performed. Here, if the content side wants the car navigation device to take some action, a command to write a value to GRPM0 may be mounted on the video content side.

A pre-command for writing a value to GRPM0 by an operator's operation on such an optical disc,
Alternatively, when the PGC on which the post command is mounted is selected, the conditional branch of “GRPM0 has been updated?” In step 1906 is YES. Therefore, if it is AAAA indicating a command for the car navigation device, the conditional branch at step 1907 is YES. Thereafter, GRPMs 1, 2, 3,.
4 is notified to the car navigation device of the latitude / longitude information written in 4, and the operation is terminated.

As described above, the optical disc reproducing apparatus can notify the car navigation apparatus at a necessary timing when the operator operates the command for the car navigation apparatus recorded on the optical disc. Further, the optical disk thus configured is replaced with a normal DVD.
If a player or an optical disc player to which a car navigation device is not connected is played back, the GR is used to notify a command to the car navigation device temporarily.
Even if the PM is updated, it is not evaluated on the video content side, so that the PM can be reproduced as usual.
This is DVDVideo, whose standard is already unified.
o It is possible to record a command for the car navigation device in the video content without changing the standard of the optical disc at all.

Further, when an optical disk recorded according to the normal DVD Video standard is reproduced on an optical disk reproducing apparatus having such a control flow, the GRPM is temporarily used for another purpose (for example, an object for holding a game score). Used in the GRP), GRP
Even when M0 becomes AAAAA, no erroneous command is issued to the connected car navigation device. Therefore, any DVD optical disk can be reproduced by the optical disk reproducing device of the present invention.

Next, another example of a method of describing a command for car navigation in video content will be described with reference to FIGS. FIG. 20 is a diagram showing an example of a data configuration of an information table recorded on an optical disc, and FIG. 21 is a flowchart showing a control flow of a CPU unit of an optical disc reproducing apparatus for reproducing this optical disc.

First, the CPU 1709 determines in step 21
At 01, it waits for an optical disk to be inserted. If inserted, GRPM is all initialized in step 2102. Thereafter, in step 2103, the communication unit 1710
To detect whether or not the car navigation device 1714 is connected, further check the Volume label of the optical disk recorded in the file system of the optical disk, and determine whether or not it is written as "CAR_NAVI". GRP only when two conditions are satisfied
FFFF is written into M15 (step 2104).

Here, when the inserted optical disk is connected to a car navigation device, the inserted optical disk is described in a pre-command or a post command of the optical disk so as to issue a command for some car navigation, or the car navigation device is used. If connected, if the order of content playback is different,
It is assumed that authoring is performed so that CAR_NAVI is described in the Volume label.

By writing FFFF to the GRPM 15, it becomes possible for a content command to refer to the GRPM 15 to make the reproduction order and the menu screen different from the normal menu screen. Then the normal D
The video reproduction of the inserted optical disk is started in the same manner as the VD player (step 2105). Here, when the operator performs an operation, reproduction is interrupted, access to another video portion, and the like are performed. Here, if the user wants the car navigation device to take some action from the content, a command to write a value to GRPM0 may be mounted on the content.

A pre-command for writing a value to GRPM0 by an operator's operation on such an optical disc,
Alternatively, when the PGC on which the post command is mounted is selected, the conditional branch of “Is GRPM0 updated?” In step 2106 is YES. The value written to GRPM0 updated at this time indicates the address of the external information table. Here, suppose GRPM0 is 2
Is written, in step 2107, the second line of the information table in FIG. 20 is read. Here, since 30 and 40 are written in the latitude and longitude, respectively, the latitude and longitude information is notified to the car navigation device, and the operation ends.

As described above, of the 16 words of GRPM0 to 15 defined by the DVD Video standard, only one word is assigned as a command to the car navigation device, and the other area is devoted to realizing the original DVD-Video standard interactive function. It is possible to hit.

(Fourth Embodiment) Next, a car navigation system according to a fourth embodiment of the present invention will be described with reference to FIG. FIG. 22 is a block diagram showing a configuration of a car navigation system in which an optical disc reproducing unit is built in the car navigation unit. That is, the car navigation system according to the present embodiment includes an optical disc playback unit (video playback function) for playing back video in accordance with the video management information, and a car navigation unit (driving support unit). It is what united. Incidentally, the optical disk reproducing means may be attached and detachable.

In FIG. 22, 2201 includes a pickup for reading information recorded on the surface of the optical disk, a traverse mechanism for moving the pickup in the radial direction of the optical disk as required, and a spindle mechanism for rotating the optical disk at a predetermined rotation speed. A mechanism unit 2204 is a front-end processor unit (hereinafter, FEP unit) that equalizes and binarizes the signal read from the pickup of the mechanism unit 2201.

Reference numeral 2205 denotes a signal processing unit for performing error correction from the binarized signal output from the FEP unit 2204 and restoring a recorded signal. Reference numeral 2206 denotes a first processing unit for temporarily storing data for which error correction has been completed. Memory 2206,
Reference numeral 2207 denotes a decoder unit for combining video data and audio data from data. Signal processing unit 2205 transfers the data stored in the first memory 2206 to the decoder unit 2207 in the case of video data, and car navigation in the case of map data. To the means 2214.

Reference numeral 2208 denotes a second memory used by the decoder unit 2207 as a work for decoding audio and video signals, and 2203 denotes a FEP unit 2208.
A servo control unit 2202 performs an operation for controlling the pickup, the traverse mechanism, and the spindle unit based on the servo signal output from the servo control unit 204, and the pickup, the traverse mechanism unit,
A driver unit for driving the spindle unit 2214 is a navigation unit for assisting driving based on the map data input from the signal processing 2205, and 2215 is video data, audio data, and map input from the decoder unit 2207 and the navigation unit 2214 respectively. An AV selection unit that switches between data and driving assistance voice.

Next, referring to FIG. 22, data having the data structure shown in FIG. 7 is stored in the video area shown in FIG. 4 in the car navigation system according to the present embodiment, and is stored in the DVD other zone in FIG. The operation when the optical disk having the data shown in FIG. 10 is inserted will be described.

At the time of inserting the optical disk, if there is video data on the optical disk, the AV selection unit 2215 sets the decoder 220
Select 7. Based on the operation of the operator, FIG.
Is displayed on the monitor. Here, when the operator selects the “go” button, the latitude and longitude are written in the register. Here, the CPU 2209 sets the destination by designating the latitude and longitude to the navigation means 2214. Further, the AV selection unit 2215 selects the car navigation means side.

[0148]

According to the first aspect of the present invention, the optical disc is
With the above configuration, in particular, a command for notifying the car navigation device of the position information is recorded on the optical disc, so that the operator can be introduced to the car navigation device with a moving image by a simple operation. Can notify location information such as latitude and longitude of a desired facility.

The car navigation system according to the second aspect of the present invention can display a specific map image including position information by a simple operation, particularly by connecting the car navigation device to the optical disk reproducing device.

In the car navigation system according to the third aspect of the present invention, particularly when the car navigation device is connected to the video disc reproducing device, the position information is notified by a simple operation, thereby supporting the position information. An extremely easy-to-use car navigation system that can select and set a position as a destination and provide route guidance to the destination can be constructed.

The car navigation system according to the fourth aspect of the present invention is particularly simple when the car navigation device is connected to the video disc reproducing device based on the result of analyzing the command contained in the video management information recorded on the optical disc. By constructing an extremely easy-to-use car navigation system that can display a specific map image including location information and guide the location to a destination by notifying location information by operation. Can be.

The optical disk according to the fifth aspect of the present invention has a simple configuration in which the command for notifying the position information for the car navigation device is a command for writing the position information to the register in the optical disk reproducing device. Can easily be transmitted.

In the optical disc according to the sixth aspect of the present invention, the register particularly stores a history of the operation performed by the operator at the time of reproducing the video image, or stores the register in the video management information or the video information in order to define the behavior of the reproducing apparatus. By using registers that can be referenced and updated from recorded commands, it is possible to inherit control software assets and LSIs of conventional DVD video devices and the like. The optical disc reproducing apparatus of the present invention can reproduce the same optical disc both at home and in the passenger compartment, and the user can select a destination in a relaxed environment at home.

In the optical disk according to the present invention, the transmission of information to the car navigation system can be realized by using the minimum necessary number of registers, in particular, by converting commands into a table and writing data to the register as a table pointer. And other registers can be used to realize the interactive content that is the original purpose.

In the optical disk according to the eighth aspect of the present invention, since the register used here is one used in a conventional optical disk reproducing apparatus, software and LSI resources can be utilized, and even at home, Can be played.

The optical disk according to the ninth aspect of the present invention can store the video data, the map information, and the route guidance information on the same disk. An optical disk that can be used directly in the apparatus can be provided.

The car navigation system according to the tenth or eleventh aspect of the invention reads out a disc by applying the optical disc according to the ninth aspect to a car navigation system having a built-in optical disc reproducing means (video reproducing function). Circuits, mechanical parts, and the like can be shared with the car navigation means (driving assistance means), and a limited on-board space can be used effectively.

The optical disc according to the twelfth aspect of the present invention
In particular, since the image of the facility can be called hierarchically in the area, it is possible to easily set the destination for the car navigation device, and to select the destination in the car navigation by a simple operation. it can.

The optical disk according to the thirteenth, fourteenth, or fifteenth aspect of the present invention can be played back by a car navigation apparatus having a function of playing back an optical disk or a home-use optical disk player. By changing the number of contents, it is possible to produce contents so that unnecessary menu screens are not displayed in a home optical disc player, and to produce contents that are easy for the user to operate.

The optical disc reproducing apparatus according to the sixteenth aspect of the present invention has a simple configuration for setting the register to a specific value when a car navigation apparatus is connected, so that it can be used in a home-use environment and a vehicle-mounted environment. It is possible to change the order of playback, for example, it is possible to delete video parts that have no meaning in the situation where the car navigation device is not connected from the playback of the main part, avoiding confusion for the user and providing easy-to-understand contents When playing a video having a button, a button that has no meaning unless a car navigation is connected is used to play a home DVD player or a video disc without a car navigation device connected. When playing on a device, create content so that it is not displayed on the screen Rukoto are possible, it is possible to manufacture a easy to understand content does not have to bring the confusion of the user.

The optical disk reproducing apparatus according to the seventeenth aspect of the present invention provides a register for use in setting the reproducing order for an in-vehicle environment, particularly based on both the result of discriminating the content and the condition of whether or not the car navigation device is connected. Even if a command for updating the value of a register is recorded on a video disc made according to a conventional video disc standard, a command for a car navigation device can be regarded as a command for a car navigation device. Since the operation can be performed without erroneous recognition, both the optical disk manufactured according to the conventional video disk standard and the optical disk according to the present invention can be reproduced by the optical disk reproducing device according to the present invention.

[Brief description of the drawings]

FIG. 1 is a diagram showing a structure of a DVD disk, and FIG.
Is a view showing the external appearance of the DVD disk, (B) is a cross-sectional view thereof, (C) is a partial cross-sectional enlarged view in which a partial cross section is enlarged,

FIG. 2 is an enlarged view of the information layer shown in FIG. 1, (A) is a detailed view of a pit shape of the information layer, (B) is an arrangement diagram of the pit shape of the information layer, and (C) is a content of the information layer. Figure showing

FIG. 3 shows a logical structure of a disk, where (A) is a physical layer,
(B) is a file layer, (C) is an application layer,

FIG. 4 is a diagram showing a data structure of a video area;

FIG. 5 is a diagram showing the concept of a VOBU managed by volume menu video management information and title set video management information;

FIG. 6 is a diagram showing an example of a reproduced video of an optical disc for performing sightseeing guidance according to the present embodiment;

FIG. 7 is a view showing a data structure of the optical disc shown in FIG. 6;

FIG. 8 is a diagram showing an example of a playback video of an optical disc realizing a “recommended drive course” according to the second embodiment of the present invention;

9 is a diagram showing a data structure of the optical disc shown in FIG. 8,

FIG. 10 is a diagram showing an example of a data format stored in a map information area of the optical disc according to the embodiment of the present invention;

FIG. 11 is a diagram showing an object of map data according to the embodiment;

12 is a diagram showing what contents of the map data shown in FIG. 11 are converted into data,

13A and 13B are diagrams showing a data format for expressing a map, FIG. 13A is a diagram showing a data format of map data, FIG. 13B is a diagram showing a data format of road node data, and FIG. Diagram showing the data format of mark data,

FIG. 14 is a diagram showing map data, landmarks, and road node data representing the district I, the district A, the district A, the district C, and the district D, where (A) is the upper map data and (B) is the lower map data. Map data, (C) is a road node link table,
(D) is a lower road node link table, (E) is road node data R1, (F) is road node data R4,
(G) shows road node data r1, (H) shows road node data r8, (I) shows a landmark list,

FIG. 15 is a diagram showing a configuration of a car navigation system including an optical disk reproducing device belonging to a first category in which an optical disk reproducing device is mounted in a vehicle and the car navigation device and the optical disk reproducing device are connected by communication;

FIG. 16 is a diagram showing a configuration of a car navigation system including an optical disc reproducing device belonging to the second category when the car navigation device is not connected to the optical disc device;

17 is a block diagram showing a configuration of an optical disc reproducing device of the car navigation system shown in FIG.

FIG. 18 is a diagram showing a CPU for reproducing an optical disk according to an embodiment of the present invention with the optical disk reproducing device shown in FIG.
Flowchart showing the control of the unit,

FIG. 19 is a flowchart showing another operation of the CPU unit of the optical disc reproducing apparatus when reproducing the optical disc according to the second embodiment of the present invention;

FIG. 20 is a diagram showing a data configuration example of an information table recorded on an optical disc;

FIG. 21 is a flowchart showing a control flow of a CPU unit of the optical disk reproducing apparatus for reproducing the optical disk;

FIG. 22 is a block diagram showing a configuration of a car navigation system in which an optical disc reproducing unit is built in the car navigation unit.

[Explanation of symbols]

 107 DVD disc 108 first transparent substrate 109 information layer 111 second transparent substrate 112 printing layer 114 light spot 301 lead-in area 302 volume area 303 lead-out area 304 volume management area 305 file area 306 map information area 307 video area 401 Video manager 402 video title set 4011 volume menu video management information 4012 volume menu video management information 4021 title set video management information 4022 title menu video information 4023 video title video information 1501, 1601 optical disc playback device 1502, 1602 optical disc insertion hole 1503 remote controller 1504 2nd cable 1505 1st cable 1506 Monitor 1507 Car navigation system Application device 1508 map disk insertion hole 1701 mechanism unit 1702 driver unit 1703 servo control unit 1704 FEP unit 1705 signal processing unit 1706 first memory 1707 decoder unit 1708 second memory 1709 CPU unit 1710 communication unit 1711 ROM unit 1712 RAM unit 1713 System bus 1714 Car navigation device 2201 Mechanism unit 2202 Driver unit 2203 Servo control unit 2204 FEP unit 2205 Signal processing unit 2206 First memory 2207 Decoder unit 2208 Second memory 2209 CPU unit 2211 ROM unit 2212 RAM unit 2213 System bus 2214 Car Navigation means 2215 AV selection unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Taketo Itagaki 3-1, Tsunashimahigashi, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture, Matsushita Communication Industrial Co., Ltd.

Claims (17)

[Claims] 1. An image reproducing apparatus, comprising: a video area which is reproduced by an optical disc reproducing apparatus connected to a car navigation apparatus and stores a plurality of video information relating to facilities and video management information for managing the video information; Information for sending a command to notify the car navigation device of position information corresponding to the video information selected by a predetermined operation performed by an operator performed when reproducing the video information is recorded. optical disk. 2. A car navigation device connected to an optical disc reproducing device for reproducing an optical disc according to claim 1 by communication means, wherein the car navigation device displays map information and guides a route to a target position. A car navigation system comprising a support means, and displaying a map including the position information when receiving a notification of the position information from the optical disk reproducing device. 3. A car navigation device connected to the optical disc reproducing device for reproducing the optical disc according to claim 1 by communication means, wherein the car navigation device displays map information and guides a route to a target position. A car navigation system, comprising: a support unit, wherein when a notification of position information is received from the optical disk reproducing device, route guidance is started with a position corresponding to the position information as a destination. 4. An optical disk reproducing apparatus comprising: a mechanism unit including an optical pickup for reading digital data recorded on the optical disk; and a decoder unit for correcting and error-correcting binary data output from the optical disk and temporarily storing and reading the data. A signal processing unit for outputting to a remote controller, receiving input data from a remote controller, system controlling a mechanism control unit, a signal processing unit, a decoder unit, and the like, and analyzing a command included in video management information recorded on an optical disc. As a result, a CPU unit that determines the order of reproduction, etc., and separates the reproduced data that has been error-corrected by the signal processing unit into main video data, sub-video data, and audio data and decodes them separately. A decoder unit for synthesizing the audio data and sending the synthesized audio data to the car navigation device together with the audio data; 4. A communication unit for transmitting position information to a car navigation device connected to the outside via a communication unit and performing control communication between the CPU unit and the car navigation device. Car navigation system. 5. An optical disk playback apparatus for playing back an optical disk according to claim 1, further comprising a register, wherein a command for notifying the car navigation apparatus of position information corresponding to the video information stores the position information in the register. An optical disc characterized by being a command to write. 6. A register in the optical disk reproducing device,
It is a register provided to be referred to and updated by a command recorded in the video management information in order to specify the behavior of the storage or reproduction operation of the history of the operation performed by the operator during the reproduction of the video image. Claim 5
An optical disc as described. 7. The video area includes an information table in which the video information, the video management information, and the information to be notified to the car navigation device are recorded in a table, and are stored in the video management information. The command for notifying the car navigation device of the position information is a command for writing a pointer value for the information table to the register.
An optical disc as described. 8. The register is referred to and updated by a command recorded in the video management information in order to specify a history of an operation performed by an operator during reproduction of a video image or a behavior of the reproduction operation. The optical disk according to claim 7, wherein the optical disk is a register provided in the optical disk. 9. A vehicle according to claim 1, further comprising a map information area storing map information and route guidance information required for said car navigation device to realize driving assistance, in addition to said image area. Item 1, 5, 6, 7 or 8
An optical disc as described. 10. A car navigation means for displaying map information and route guidance based on the map information and the route guidance information reproduced from the optical disk according to claim 9 by the optical disk reproduction means, and recorded in a video information area of the optical disk. Optical disk playback means for playing back the video information in accordance with the video management information, wherein the optical disk playback means is played back from the optical disk when a predetermined operation is performed by an operator during video playback. A car navigation system characterized in that a predetermined numerical value held in the register is analyzed and a map including the position information obtained as a result is displayed on the screen of the car navigation means. 11. A car navigation means for displaying map information and route guidance based on the map information and route guidance information reproduced by the optical disk reproduction means from the optical disk according to claim 9, and a video information area recorded on a video information area of said optical disk. Optical disk playback means for playing back the video information in accordance with the video management information, wherein the optical disk playback means is played back from the optical disk when a predetermined operation is performed by an operator during video playback. A car navigation system characterized in that a predetermined numerical value held in the register is analyzed, and the position information obtained as a result is used as a destination to start route guidance to the car navigation means. 12. The video data recorded in the video area is constituted by a chain composed of a combination of a plurality of moving picture data and sub-picture data, and the video management information recorded in the video area is 1 An optical disc for determining a reproduction order of one or more chains, and further having an area for designating a chain to start reproduction when an operator selects a button realized by the sub-video data. There are a plurality of menu screens configured by a chain including sub-video data having the buttons, and each menu screen has an area name recognized by the operator by the sub-video data, audio data, or main video data. The buttons on each menu screen correspond to the facilities and sightseeing spots in the area with the area name. 10. The optical disc according to claim 1, wherein each menu screen is configured hierarchically for each region or for each genre of facility. 13. The optical disk according to claim 1, wherein the video data recorded in the video area is composed of a plurality of chains. An optical disc in which the video management information recorded in the video area determines a reproduction order of one or more chains, wherein the optical disc reproduction device is connected to the car navigation device by communication means. The optical disc playback device belonging to the first category and the optical disc playback device belonging to the second category which are not connected to the car navigation device constitute a car navigation system. Or the optical disc reproducing device belonging to the second category. Optical disc, wherein a reproduction order and a different as. 14. The optical disk according to claim 1, wherein the video data recorded in the video area comprises a plurality of chains. The video management information recorded in the video area has an area for specifying a chain to start playback when an operator selects a button realized by sub-video data, The optical disc reproducing device belonging to the first category and the optical disc reproducing device belonging to the second category,
The video management information may be such that the presence or absence of buttons or the number of buttons to be played in some or all of the video portions is different when each chain is played by an optical disk playback device belonging to the first or second category. 14. The optical disk according to claim 13, wherein: 15. In the optical disk according to claim 1, claim 5, claim 6, claim 7, claim 8, or claim 9, video data recorded in the video area is used for normal reproduction. The video management information recorded in the video area includes a plurality of chains and a menu chain called by an operator's menu operation. An optical disk having an area for storing a command for determining a reproduction order, wherein the image is reproduced by both the optical disk reproducing device belonging to the first category and the optical disk reproducing device belonging to the second category. The management information is stored in the optical disc reproducing device belonging to the first or second category. 15. The optical disk according to claim 13, wherein a menu chain reproduced by the menu operation differs depending on whether the reproduction is performed. 16. The method of claim 13, claim 14 or claim 1.
5. A register for reproducing the optical disk according to 5 and setting a specific value reproduced from the optical disk, and setting a specific value reproduced from the optical disk to the register when a car navigation device is connected. An optical disc reproducing apparatus characterized by the above-mentioned. 17. The method of claim 13, claim 14 or claim 1.
5. The optical disk according to item 5, wherein the data recorded in the video area of the optical disk is reproduced by an optical disk reproducing device belonging to the first category or an optical disk reproducing device belonging to the second category. Discriminating the content of the optical disc as to whether or not the playback state is different and whether or not video information is included, an optical disc reproducing apparatus which is connected to a car navigation device, and belongs to the first category as a result of the content discrimination When it is determined that the reproduction state is different depending on whether the reproduction is performed by an optical disk reproduction device belonging to the second category or an optical disk reproduction device belonging to the second category, a specific value is set in each of the registers. .