JP2877760B2 - Reproduction method and reproduction device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing method and a reproducing apparatus .

[0002]

2. Description of the Related Art In recent years, menus have been used as a technique for selecting and reproducing various data recorded on a disc. Conventionally, when implementing this menu, for example, as shown in FIG. 40, a menu list and menu image information are recorded in a predetermined area of the disc. In the menu list, the recording position of the menu image information corresponding to each menu number and the recording position of the file corresponding to the selection number on the menu are recorded. When an arbitrary menu number is selected (), based on the address described in the menu list corresponding to this menu number, (),
The corresponding menu image information is read (), and thereby a menu screen is displayed. When an arbitrary file number is selected from the menu screen (), the recording position of the target file is determined based on the menu list (), and the target file is reproduced ().

However, in the method using the menu list as described above, the size of the menu list increases as the number of selection items increases, the ratio of the menu data amount to the total recording data amount increases, and the use of the disk capacity increases. Efficiency decreases.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an optical system which does not unduly increase the ratio of the menu data amount to the total data amount even if the number of selection items increases. The purpose is to provide an expression disc .

[0005]

According to the first aspect of the present invention, there is provided:
Optical disc in order to achieve the above object, an optical
Playback device that can read information using
An optical disc used for the mounting,
An optical disc in which data is recorded in a file unit between the upper lead-in area and the lead-out area ,
The file is read via the optical pickup.
A data unit area in which a group of data units, which are a group of a plurality of types of data that are taken and reproduced in synchronization with each other in the reproduction apparatus, are recorded, and a data unit recorded in the data unit area is reproduced. The device is in front
Selectively access one or more via an optical pickup
And information to be combined and configured as a program cell, wherein the playback device
A cell information table region one or more cell information table is information recorded to be read via the up-front
The recording / reproducing device reads the data through the optical pickup.
Was based on the cell information table, the reproducing apparatus is the
Connecting one or more of the program cells in the playback device ,
Information to be configured as a program chain
Through the optical pickup by the playback device
And a chain information region in which one or more chain information is information recorded to be read, the file is pre
The read / write device reads the data through the optical pickup.
The information to be taken includes at least one cell information for configuring a menu screen for selecting an arbitrary data item to be reproduced in the reproduction device, and the cell information is
When accessed by the optical pickup
Whether the cell information constitutes the menu screen
Characterized in that it comprises identification information for discriminating.

According to the second aspect of the present invention,Optical disc
Is defined in claim 1Optical discIn the menu,
Program check using the cell information that composes the
Chain information tables that make up a chain
Collection of the cell information constituting the plurality of menu screens
Block mode to define the combination as one block
It is characterized in that it includes password information.

According to the third aspect of the present invention,Optical disc
Is defined in claim 1Optical discIn the menu,
Cell information that constitutes the menu screen is displayed on the menu screen.
Also includes language type information indicating the language type of the character to be displayed
It is characterized by the following.

[0008]

In the optical disc according to the present invention, at least one cell information constituting the menu screen is recorded, and the cell information table contains identification information indicating that the cell information constitutes the menu screen. Therefore, the playback device can determine the cell information constituting the menu screen based on the identification information and reproduce the menu screen based on the cell information. Therefore, it is not necessary to record the menu list or the like in an area other than the file, and even if the number of selection items increases, the ratio of the menu data amount to the total recording data amount does not increase.

In the optical disc of the present invention, a set of cell information constituting a plurality of menu screens related to each other is stored in a chain information table constituting a program chain using cell information constituting a menu screen. Block mode information for defining a block is recorded. Therefore, the playback device recognizes the relevance of the plurality of menu screens included in the chain information table based on the block mode information, and determines the first playback currently being played back.
When it is recognized that the first menu screen is related to the second menu screen to be reproduced next, the second menu screen can be reproduced after the selection on the first menu screen is made. .

In the optical disc of the present invention, language type information indicating a language type of a character displayed on the menu screen is recorded in cell information constituting the menu screen. Therefore, based on the language type information, the playback device determines whether or not the language type of the menu screen configured by the cell information matches the language type selected in advance, and determines that the language types match. In this case, the menu screen can be reproduced based on the cell information. Can be played.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a data structure of an optical disk according to an embodiment of the present invention.

The data structure of this disc is ISO-966.
0 standard. The recording space of this disc is divided into a lead-in area, a management area, a data area, and a lead-out area. The management area is the system area, P
VD (Primary Volume Descriptor) table, VTD
(Volume Terminate Descriptor) table, PT (PathTa
ble) and DR (Directory Record). The data area is composed of a plurality of files.

[0014]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to store a plurality of data blocks of different types such as main video, audio, and sub-video. It is an object of the present invention to provide a data reproducing method and a reproducing apparatus which are treated as one data unit and are particularly suitable when audio data and sub-picture data are set for a plurality of channels.

Further object of the present invention, the main picture, audio, treat different plurality of data blocks of the type such as sub-picture as one data unit to be reproduced in synchronization respectively, in particular data unit basis of the main picture It is an object of the present invention to provide a data reproducing method and apparatus capable of accurately and stably synchronizing the reproduction of each data block with reference to the frame display period of the main video even when the number of display frames is variable.

[0016]

SUMMARY OF THE INVENTION The present invention (claim 1) re
Raw method, optical from a recording medium on which data are recorded in units of files between Li Doin area and the lead-out area
A playback method that reads and plays data using a pickup
In law, the file is a data unit region group of data units are recorded a group of data of a plurality of types to be reproduced in synchronization with each other is read through the optical pickup, the data unit and selectively coupling access vital least one through the previous SL optical pickup data units recorded in the area,
One or more the cell information area of the cell information is recorded in an information for configuring the information to be read through the front <br/> Symbol optical pickup as a program cell, before Symbol optical pickup based <br/> to the cell information read through the previous SL program cell coupled one or more, an information for configuring a program chain
Before SL has one or more chain information region chain information is recorded is information to be read via the optical pickup, wherein the file, the when the cell information is accessed by the optical pickup look including the identification information to determine whether those cell information constitutes a <br/> menu screen for selecting a desired said program chain, wherein the cell information previous by the identification information
If it is determined that the menu screen
The cell information is used to compose the menu screen.
Is used, and the desired program
When a chain is selected, the chain information area and the
Referring to the cell information area, the selected program
It is characterized in that data units constituting the chain are reproduced .

The method of reproducing [0017] The present invention (Claim 2), in the reproducing method according to claim 1, wherein the file, cell information forming the menu screen, the language type of characters to be displayed on the menu screen It is characterized by further including language identification information shown.

According to a third aspect of the present invention, there is provided a reproducing apparatus comprising:
Data is transferred between the in area and the lead out area in file units.
Use an optical pickup from a recording medium on which
A reproducing apparatus for reading and reproducing data
File is read via the optical pickup
Multiple types of data that are played back
A data unit in which a group of data units that are
Unit area and data recorded in the data unit area.
Data unit via the optical pickup.
Selectively access and connect with the program cell
Information for configuring as an optical pickup.
One or more cell information that is information read through the
Cell information area where information is recorded, and the optical pickup
On the basis of the cell information read through the
Concatenate one or more Gram cells to create a program chain.
Information for configuring as an optical pick-up
One or more checks that are information read through
Chain information area in which chain information is recorded,
The file contains the cell information on the optical pickup.
Therefore, when accessed, the cell information is
Configure the menu screen to select the program chain
Including identification information for determining whether the
The cell information displays the menu screen according to the identification information.
When the cell information is determined to be a constituent,
Used to compose the menu screen,
Menu screen allows you to select the desired program chain.
Then, refer to the chain information area and the cell information area
Data that constitutes the selected program chain
Data unit is reproduced.

[0019]

[0020]

[0021]

[0022]

[0023]

[0024]

[0025]

[0026]

[0027]

[0028]

[0029]

[0030]

[0031]

[0032]

[0033]

[0034]

[0035]

According to the onset bright [action], the head of the data block, the host is provided with the block header for managing the data in the data block, finer units of data in the data block based on the block header, For example, it can be easily managed in channel units and stream units.

[0036] According to the onset bright, the head of the data block, is provided with the block header including management information indicating the division position data of each group in its own data block, the data block on the basis of the management information The data of each group in can be divided.

As shown in FIG. 18, the chain information table contains the total number of branch points (NBP) indicating the number of program cells shared with other program chains.
And the branch information (BIN) which is the program cell number.
F0) is described. FIGS. 23 and 24 show examples of description of branch information (BINFO) and chain control information (SCINFO) when three program chains A, B, and C share a program cell. In the chain control information (SCINFO), the numbers of the program cells to be reproduced are described in the reproduction order. The reproducing device executes reproduction of the program chains A, B, and C by sequentially selecting and reproducing the program cells to be reproduced based on the chain control information (SCINFO). As a result, each of the program chains A, B, and C is shown in FIG.
It is reproduced according to the procedure shown in FIG. In FIG. 25, 0
To 8 indicate the numbers of the individual program cells and the playback sections thereof.

Next, one of the programs A, B, and C
The operation in the case where the switching of the program chain occurs during the reproduction of the chain will be described.

1) When the switching to the program chain B occurs during the reproduction of the program cell 1 of the program chain A, the reproduction of the program chain B is started from the first program cell 5.

2) If the switching to the program chain C occurs during the reproduction of the program cell 1 of the program chain A, the reproduction of the program chain C is started from the first program cell 7.

3) When the switching to the program chain B occurs after the reproduction of the program cell 1 of the program chain A is completed, the reproduction of the program chain B is started from the next program cell 2. Because program chain B is the second program chain
It has a program cell 1 shared with chain A, and the reproduction of program chain B is started from the next program cell 2 to avoid duplicate reproduction.

4) When the switching to the program chain C occurs after the reproduction of the program cell 1 of the program chain A is completed, the reproduction of the program chain C is started from the first program cell 7.

5) When the switching to the program chain B occurs after the reproduction of the program cell 2 of the program chain A is completed, the reproduction of the program chain B is started from the program cell 6. The reason is the same as in 3).

6) When the switching to the program chain C occurs after the reproduction of the program cell 2 of the program chain A is completed, the reproduction of the program chain C is started from the first program cell 7.

7) When the switching to the program chain B occurs after the reproduction of the program cell 3 of the program chain A is completed, the reproduction of the program chain B is started from the program cell 6.

8) When the switching to the program chain C occurs after the reproduction of the program cell 3 of the program chain A is completed, the reproduction of the program chain C is started from the program cell 8. Because the program chain C has the second program cell 3 shared with the program chain A,
The reproduction of the program chain C is started from the program cell 8 in order to avoid duplicate reproduction.

As described above, when the reproduction is switched between the program chains having the shared program cells, the reproduction after the switching is started from the program cell next to the shared program cell whose reproduction has been completed. .

Next, the reproduction control of the program chain will be described.

As shown in FIG. 18, chain control information (SCINFO) is continuously recorded in the chain information table in the order in which program cells are reproduced. Therefore, by successively reading out the chain control information, continuous reproduction of program cells, that is, reproduction of the program chain can be performed.

As shown in FIGS. 18 and 26, a 2-bit reproduction control area 61 is provided in the chain control information (SCINFO). This playback control area 6
On the basis of the reproduction control information described in No. 1, the reproducing apparatus can recognize the control contents when each program cell is continuously reproduced.

The contents of the reproduction control information include the following. 00: After reproducing the program cell, the next program cell is reproduced continuously without a waiting time (there is continuity between programs). 01: After reproducing a program cell, the next program cell is reproduced continuously without a waiting time (no continuity between programs). 10: After reproducing the program cell, wait for a lapse of time (PWAIT) specified in the cell information table to reproduce the next program cell. 11: After the reproduction of the program cell, the reproduction is stopped.

Next, a specific example of continuous reproduction control of program cells based on the reproduction control information will be described.

FIG. 26 shows a description example of chain control information (SCINFO) as a specific example. In this example, the program chain consists of five programs
It is composed of cells. The angle modes are all "00", and there is no designation of multi-angle reproduction.
The multi-angle reproduction is a method in which the user is allowed to select only one program cell to be reproduced from among several program cells that can be selectively reproduced in the same period on the same time axis. For example, assuming a baseball broadcast on television, there is an example in which two video data respectively captured by a first-base camera and a third-base camera are recorded, and one of the videos is selected at the time of reproduction. Can be

Referring to the flowchart of FIG. 27, the procedure of control for continuous reproduction of program cells will be described.

First, the reproducing apparatus obtains the first chain control information (SCINFO) from the chain information table (step 1), and reads the first program cell number in the information (step 2). Next, the reproducing device reads the head pointer of the cell information table from the file management table, and acquires the target cell information table from the head pointer and the program cell number (step 3). Then, the reproducing device executes reproduction of the program cell according to the contents of the obtained cell information table (step 4).

During this time, the playback device reads the information in the playback control area of the chain control information and controls continuous playback between program cells as follows based on the playback control information.

If the reproduction control information is "00" (step 5), the reproduction device obtains the next chain control information (SCINFO) after the reproduction of the program cell is completed (step 11), and immediately proceeds to the next program. -Start playing the cell.

If the reproduction control information is "01" (step 6), the reproducing apparatus executes Broken Link processing such as mute immediately before the end of the reproduction of the program cell (step 9), and terminates the reproduction of the program cell. Thereafter, the next program chain control information (SCINFO) is obtained, and the reproduction of the next program cell is immediately started.

If the reproduction control information is "10" (step 7), the reproducing apparatus sets the time (PWAIT) specified in the cell information table after the reproduction of the program cell is completed.
Only the weight processing is performed (step 10). Then, after the lapse of the wait time, the playback device acquires the next chain control information (SCINFO) and starts playback of the next program cell.

When the reproduction control information is "11", the reproduction device, after the reproduction of the program cell, ends the program
The reproduction of the chain ends (step 8).

Accordingly, a specific procedure of the reproduction control when the reproduction control is executed based on the chain control information shown in FIG. 26 is as follows. FIG. 28 shows the procedure of the reproduction control. Chain control information number 0: S1 → S2 (acquired cell number 0) → S3 → S4 (reproduced cell number 0) → S5 → S11 Chain control information number 1: → S2 (acquired cell number 1) →
S3 → S4 (reproduced cell number 1) → S5 → S6 → S9 → S
11 Chain control information number 2: → S2 (acquired cell number 4) →
S3 → S4 (reproduced cell number 4) → S5 → S11 Chain control information number 3: → S2 (acquired cell number 2) →
S3 → S4 (reproduced cell number 2) → S5 → S6 → S7 → S
10 (wait processing) → S11 Chain control information number 4: → S2 (acquired cell number 3) →
S3 → S4 (reproduced cell number 3) → S5 → S6 → S7 → S
8 → End Next, multi-angle reproduction of a program cell will be described.

As shown in FIGS. 29 and 18, in the chain control information of the chain information table, 2-bit angle mode information 71 and 4-bit angle number 72 are recorded. The contents of the angle mode information 71 are as follows. An angle block is a set of several program cells that can be selectively reproduced in the same period on the same time axis. 00: Not an angle block. 10: Start / continuation of angle block 11: End of angle block The angle number 72 is assigned by a serial number for each program cell constituting the angle block. When any angle number is selected by the user, the program cell of that angle number is reproduced.

Next, the operation of multi-angle reproduction will be described. FIG. 30 is a flowchart showing the procedure of multi-angle playback control.

First, the reproducing apparatus obtains the first chain control information (SCINFO) from the chain information table (step 1), and reads the first program cell number in the information (step 2). Next, the reproducing device reads the head pointer of the cell information table from the file management table, and acquires the target cell information table from the head pointer and the program cell number (step 3). Then, the playback device reads the angle mode information 71 of the first chain control information, and executes multi-angle playback control based on this information as follows.

If the angle mode information is "10" (start / continuation of the angle block) (step 6), the reproducing device checks whether or not the angle number is designated by the user (step 7). If the angle number is not specified, the playback device selects the default angle number (0) (step 8) and sets the angle mode flag (step 9). If the angle number is specified, the reproducing device sets the angle mode flag as it is (step 9).

Next, the reproducing apparatus checks whether or not the current program cell is a program cell having the angle number designated by the user (step 10). “YE
If S ", the reproducing apparatus acquires the corresponding cell information table, executes reproduction of the program cell according to the contents of the cell information table (step 11), and thereafter resets the angle mode flag (step 11). Step 12) If "NO", the reproducing apparatus does not reproduce the current program cell and keeps the angle mode flag set.

Next, the playback device reads the information in the playback control area 61, and if this is not "11" (the end of the playback of the program chain) (step 13), the playback device acquires the next chain control information from the chain information table. (Step 15) Returning to Step 2, the same processing is repeated.

When the playback device determines in step 4 that the angle mode information 71 is "11" (end of the angle block) (step 4),
It is checked whether or not the angle mode flag is set (step 16). If the angle mode flag is reset, the next chain control information is obtained via step 13 (step 15), or the reproduction of the program chain is completed. Is performed (step 14). Therefore, when the multi-angle playback control is executed based on the chain control information shown in FIG. 29, the specific procedure of the playback control is as follows. FIG. 31 is a diagram showing the procedure of the multi-angle reproduction control. The angle number specified by the user is “1”. Chain control information number 0: S1 → S2 (acquired cell number 0) → S3 → S4 → S5 → S11 (reproduced cell number 0) →
S12 → S13 → S15 Chain control information number 1: → S2 (acquired cell number 1) →
S3 → S4 → S5 → S6 → S7 → S9 → S10 → S13
→ S15 Chain control information number 2: → S2 (acquired cell number 5) →
S3 → S4 → S5 → S6 → S7 → S9 → S10 → S11
(Reproduced cell number 5) → S12 → S13 → S15 Chain control information number 3: → S2 (acquired cell number 6) →
S3 → S4 → S16 → S13 → S15 Chain control information number 4: → S2 (acquired cell number 2) →
S3 → S4 → S5 → S11 (reproduced cell number 2) → S12
→ S13 → S15 Chain control information number 5: → S2 (acquired cell number 3) →
S3 → S4 → S5 → S6 → S7 → S8 → S9 → S10 →
S11 (reproduced cell number 3) → S12 → S13 → S15 Chain control information number 6: → S2 (acquired cell number 7) →
S3 → S4 → S16 → S13 → S15 Chain control information number 7: → S2 (acquired cell number 4) →
S3 → S4 → S5 → S6 → S11 (reproduced cell number 4) →
S12.fwdarw.S13.fwdarw.S14.fwdarw.End Next, a description will be given of a specific code added to the use type of the program chain on the disc.

As shown in FIG. 17, in the chain information table, 4-bit type information 74 indicating the type of use of the program chain and an 8-bit specific code 73 indicating more detailed contents of the type of use are recorded. ing. The specific code 73 has a unique correspondence between the code and its detailed content for each usage type, and shows different detailed content for each usage type even if the code is the same. For example, assume that karaoke and musical instruments are used as application types of the program chain. In this case, the specific code is changed so as to indicate the language type of the caption in the case of karaoke and to indicate the type of the musical instrument in the case of a musical instrument. As a result, many types of detailed contents can be defined by the fixed-length specific code without extending the specific code.

Next, a method of displaying the menu of the present disc will be described.

FIG. 32 is a diagram showing the structure of chain control information (SCINFO) in the chain information table forming the menu screen, and FIG. 33 is a diagram showing the structure of a cell information table also forming the menu screen.

As shown in FIG. 32, the chain control information (SCINFO) in the chain information table includes 2-bit block mode information 81 and 4-bit block type 82 indicating the type of block. . The block mode information 81 is information indicating a mutual relationship between a plurality of program cells. That is, when the block mode information 81 is "00", the program cell is not a cell constituting a block, when the block mode information 81 is "01", the program cell is a start cell of the block, and when the block mode information 81 is "10", the program cell is not a cell. The program cell is a cell in the middle of the block, and "11" indicates that the program cell is the end cell of the block. When the block type 82 is “0000”, it is not a block, when it is “0001”, it is an angle block, when it is “0010”, it is a menu block,
Are respectively shown.

As shown in FIG. 33, the cell information table contains type information 83 indicating the type of the program cell.
And the specific code 84 are described. The types of program cells include movies, karaoke, and various menus. Menu types include file selection, sequence (program chain) selection, audio stream selection, sub-video channel selection, program selection, angle selection, and the like. When the type of the program cell is a menu, the specific code 84 indicates the language type of the menu.
FIG. 34 is a diagram showing a configuration example of a file selection menu. As shown in the figure, the menu for selecting a file is configured by using the first file in the data area. That is, this file is composed of at least one chain information table S0 including at least one cell information table C0. Note that P0 is a program which is an element constituting a program chain. The program is composed of one or more cell information tables.

FIG. 35 is a diagram showing a configuration example of a menu for selecting a sequence (program chain). As shown in the figure, this menu is configured using a chain information table S0 at the head of each file. Also,
Each of the cell information tables C120 and C200 for configuring the audio stream selection menu and the sub-video channel selection menu can be added to the chain information table. In this case, a plurality of cell information tables for configuring each menu are associated by the block mode information 81 in the chain information table. Similarly, when one menu includes a plurality of screens (a plurality of cell information tables), each cell information table is associated with the block mode information 81.

Further, with the block mode information 81 and the block type 82, a menu and data other than the menu can be constituted by one chain information table. FIG. 36 is a diagram showing an example in this case. In the present example, the chain information table S1 has two cell information tables C20 and C21 for forming an angle selection menu and a program selection menu only at the head thereof. Further, the next chain information table S2 has only one cell information table C22 for forming a program selection menu lower than the program selection menu only at the head thereof. Further, the next chain information table S3 has only one cell information table C23 for forming an angle selection menu lower than the angle selection menu only at the head thereof.

Next, a reproducing apparatus for realizing menu display of the present disc will be described.

FIG. 37 is a block diagram showing a configuration of a function for realizing the menu display. In the figure, reference numeral 91 denotes a key input unit for specifying a selection item and a language type on a menu screen. Reference numeral 92 denotes a menu determination / selection unit that determines the cell information table constituting the menu screen based on the type information 83 recorded in the cell information table and recognizes the item number selected on the menu screen. 9
Reference numeral 3 denotes a playback control information storage unit that stores playback control information recorded in a chain information table including a cell information table forming a menu screen. A cell reproduction data storage unit 94 stores one or more data units as cell reproduction data based on a cell information table constituting a menu screen. Reference numeral 95 denotes a cell reproduction control unit that controls reproduction of the cell reproduction data stored in the cell reproduction data storage unit 94. Reference numeral 96 denotes a display unit for displaying a menu screen. Reference numeral 97 denotes a menu block determination unit that recognizes the relevance of a plurality of cell information tables forming a menu screen based on the block mode information 81 in the chain information table. 98, when the menu block currently being reproduced and the menu screen to be reproduced next are recognized by the menu block determining unit 97 to be related to each other, the next menu screen is displayed after an item is selected for the currently reproduced menu screen. Is a menu block switching unit for switching the reproduction. Reference numeral 99 stores a specific code 73 in a cell information table constituting a menu screen, and based on the specific code, a specific code for determining whether or not a language type of the menu screen matches a preselected language type. It is a judgment / storage unit.

Next, the operation of displaying the menu of the disc will be described. FIG. 38 is a diagram showing a procedure for selecting a file.

First, the playback device obtains the first chain information table in the first file (file 0) in the data area, and stores the playback control information in the obtained chain information table in the playback control information storage unit 93. Next, the playback device acquires the first cell information table based on the leading chain control information. Subsequently, the playback device performs menu determination /
The selection unit 92 reads the program cell type information 83 included in the cell information table, and determines whether the program cell type is a menu. If it is determined that the type of the program cell is a menu, the cell reproduction control unit 95 reproduces the program cell,
A menu screen 101 for file selection as shown in FIG. 38 is displayed on the display display section 96. On this menu screen 101, the number of each file is displayed together with the file name (work name). When an arbitrary file number is selected by the user using the key input unit 91, the playback device recognizes the selected file number in the menu determination / selection unit 92, and sets the first chain information in the file corresponding to this file number. A table is obtained, and the reproduction control information in the obtained chain information table is stored in the reproduction control information storage unit 93. Next, the playback device acquires the first cell information table based on the leading chain control information. After that, the playback device reads the program / cell type information 83 included in the cell information table by the menu determination / selection unit 92. As a result, when it is confirmed that the type of the program cell is the menu, the cell reproduction control section 95 reproduces the program cell and displays the next menu screen on the display section 96.

In the reproducing apparatus, the menu block determination section 97 reads the block mode information 81 and the block type 82 in the chain information table, and each cell information table in the chain information table has relevance as a menu block. Recognize whether you are. When it is recognized that the menu screen currently being played and the menu screen to be played next are related, the menu block switching unit 98 selects an item on the currently played menu screen, and then proceeds to the next menu screen. Switch playback to. Thus, it is possible to continuously display up to the last menu which is the end cell of the menu block.

Further, on this disc, a group of cell information tables constituting a plurality of menu screens having the same contents but different languages is recorded in the form of one menu block. The language type of this menu is indicated by a specific code 84 in the cell information table. FIG. 39 is a diagram showing an example of a cell information table group constituting a plurality of menu screens having different language types. In this case, by specifying the language type in advance, the specific code determination / storage unit 99 selects only the program cells constituting the menu of the corresponding language type from the menu group constituting one menu block. , Can be played continuously.

[0082]

As described above, the optical disk of the present invention is used.
According to disk, even if the increase in the number of choices, never the ratio of menu data amount becomes unduly high for the entire data volume.

According to the optical disc of the present invention, a plurality of menu screens related to each other can be continuously reproduced with a menu selection operation interposed therebetween.

According to the optical disc of the present invention, it is possible to reproduce only the menu screen of the language type selected by the user from among a plurality of pieces of cell information constituting the menu screen of the same contents of different language types.

[Brief description of the drawings]

FIG. 1 is a diagram showing a data structure of an optical disc according to an embodiment of the present invention.

FIG. 2 illustrates an example of a PVD table.

FIG. 3 is a diagram showing an example of a VTD table.

FIG. 4 is a diagram showing an example of an L-shaped PT table;

FIG. 5 is a diagram showing an example of an M-type PT table.

FIG. 6 is a diagram showing an example of a DR (00) table;

FIG. 7 is a diagram showing an example of a DR (01) table;

FIG. 8 is a diagram showing an example of a file (n) table.

FIG. 9 is a diagram showing a configuration of an optical disk reproducing device for reproducing the disk of FIG. 1;

FIG. 10 is a diagram showing a configuration of a function for determining the type of a disk and a file in conformity with a data recording method

FIG. 11 is a diagram showing a configuration of a function for determining the number of recording surfaces and a reproduction surface of a disc;

FIG. 12 is a diagram showing a procedure of file access on a data structure.

FIG. 13 is a flowchart showing a file access procedure.

FIG. 14 is a diagram showing an example in which disk management information is overwritten in a lead-in area.

FIG. 15 shows a data structure of a file.

FIG. 16 illustrates an example of a file management table.

FIG. 17 is a diagram showing an example of a chain information table.

FIG. 18 is a diagram showing an example of a chain information table.

FIG. 19 is a diagram showing an example of a cell information table.

FIG. 20 is a diagram illustrating an example of a DAT.

FIG. 21 is a flowchart showing a program chain selection procedure;

FIG. 22 is a diagram showing an example of file relocation;

FIG. 23 is a diagram showing a description example of branch information of three program chains.

FIG. 24 is a diagram showing a description example of chain control information of three program chains.

FIG. 25 is a diagram showing a reproduction procedure of three program chains.

FIG. 26 is a diagram showing a description example of control information of a program chain.

FIG. 27 is a flowchart showing a procedure of continuous reproduction of a program cell;

FIG. 28 is a diagram showing a specific example of a procedure for continuous reproduction of program cells.

FIG. 29 is a diagram showing a description example of control information of a program chain including a multi-angle.

FIG. 30 is a flowchart showing the procedure of multi-angle playback control.

FIG. 31 is a diagram showing a specific example of a procedure of multi-angle reproduction.

FIG. 32 is a diagram showing a configuration of chain control information in a chain information table forming a menu screen.

FIG. 33 is a diagram showing a configuration of a cell information table forming a menu screen;

FIG. 34 is a diagram showing a configuration example of a menu for selecting a file.

FIG. 35 is a diagram showing a configuration example of a menu for selecting a sequence (program chain).

FIG. 36 is a diagram showing a configuration example of another menu.

FIG. 37 is a block diagram showing a configuration of a function for realizing menu display;

FIG. 38 is a diagram showing a file selection procedure.

FIG. 39 is a diagram showing an example of a cell information table group constituting a plurality of menu screens having different language types;

FIG. 40 is a view for explaining a conventional menu display method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Disk identifier, 2 ... Disk number identifier, 3 ... Disk surface identifier, 4 ... Disk identifier, 5 ... File management table, 6 ... Chain information table, 7 ... Cell information table, 8 ... DAT, 9 ... DUT, 31 ... Disc recording method judging unit, 32 ... File recording method judging unit, 41 ...
Disk recording surface number determination unit, 42: disk A / B surface determination unit, 51, 52: preliminary management area, 61: reproduction control area, 71: angle mode information, 72: angle number,
73 ... Specific code, 74 ... Type information, 81 ... Block mode information, 82 ... Block type, 83 ... Type information, 84
... Specific code, 91 ... Key input section, 92 ... Menu determination / selection section, 93 ... Playback control information storage section, 94 ... Cell playback data storage section, 95 ... Cell playback control section, 96 ... Display display section, 97 ... Menu Block determination unit, 98: Menu block switching unit, 99: Specific code determination / storage unit.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shinichi Kikuchi 3-3-9, Shimbashi, Minato-ku, Tokyo Inside Toshiba ABU EE Co., Ltd. (72) Inventor Hideki Mimura Shinsugita-machi, Isogo-ku, Yokohama-shi, Kanagawa 8 Toshiba Corporation Multimedia Technology Research Institute (72) Inventor Tetsuya Kitamura 70 Yanagicho, Yuki-ku, Kawasaki-shi, Kanagawa Pref.

Claims (3)

(57) [Claims] 1. A light from a recording medium on which data is recorded in units of files between the re Doin area and the lead-out area
Read and play back data using a scientific pickup
In raw method, the file is a data unit region group of data units are recorded a group of data of a plurality of types which are read via the optical pickup is reproduced in synchronization with each other, the data Data unit recorded in the unit area
Before SL selectively connected access vital least one via the optical pickup, the information to be read through the information in a by pre Symbol optical pickup for configuring a program cell one or more information for the cell information and cell information area recorded, before SL on the basis of the cell information read via the optical pickup, a pre-Symbol program cell coupled one or more, constituting a program chain and a chain information region in which one or more chain information which is information to be read through the previous SL optical pickup is recorded even in the file, the cell information is accessed by the optical pickup When the cell information is before the desired
It contains identification information to determine whether it constitutes a menu screen for selecting the program chain.
The cell information is displayed on the menu screen according to the identification information.
When it is determined that the cell information constitutes a surface, the cell information
Information is used to compose the menu screen,
Select desired program chain on menu screen
When done, the chain information area and the cell information area
To configure the selected program chain.
Playback method characterized by playing back data units
Law . 2. The reproduction method according to claim 1, wherein the file information of the file further includes language identification information indicating a language type of a character displayed on the menu screen. How to play . (3) Between the lead-in area and the lead-out area
Light from a recording medium on which data is recorded in file units
Read and play back data using a scientific pickup
In raw equipment, The file is Read through the optical pickup and
It is a set of multiple types of data that are reproduced in anticipation
Data unit area in which groups of data units are recorded
When, The data unit recorded in the data unit area is
One or more selectively actuated via the optical pickup
Access and link to form a program cell
Information for reading through the optical pickup.
One or more cell information, which is information that can be detected, is recorded
A cell information area; The cell information read through the optical pickup
Link one or more of the program cells based on the
Information to configure as a program chain
Information read through the optical pickup
A chain in which one or more chain information is recorded
Information area, The file contains the cell information and the optical pickup
Cell information is accessed before the desired
Menu screen for selecting the program chain
And identification information for determining whether the
The cell information is displayed on the menu screen according to the identification information.
When it is determined that the cell information constitutes a surface, the cell information
Information is used to compose the menu screen,
Select desired program chain on menu screen
When done, the chain information area and the cell information area
To configure the selected program chain.
Reproducing apparatus for reproducing a data unit
Place.