JP2001057057A - Device and method of reproducing optical disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reproduce a disk of the DVD-Audio Specification containing a plurality of different kinds of disk management information by selecting one of the plurality of different disk management information according to an instruction, and reproducing audio data or video-audio data. SOLUTION: In the case that AMG is selected as disk management information and if a title selected by a user is ATS, a system control part reads audio title set management information in ATS and its attribute table, and reproduces a program chain group. On the other hand, if the selected title is VTS, the system control part reads out video title set management information in VTS and its attribute table, and reproduces the program chain group. On the other hand, in the case that VMG is selected as the disk management information, and if the user selects a desired title, the subsequent operations are the same as those at the time of reproducing VTS from AMG.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing apparatus and a reproducing method for an optical disk on which multimedia data including digital moving image data and digital audio data are recorded, and particularly includes a plurality of different types of disk management information. In a reproducing apparatus using an optical disk, an optical disk reproduction that enables a user to select the plurality of types of disk management information, thereby reproducing all audio data or video data recorded on the optical disk. It concerns the device.

[0002]

2. Description of the Related Art In recent years, a conventional laser disk or video C
D (DVD) with a dramatically improved recording capacity
gital Versatile Disc)-Video began to spread,
Many movie titles have been released. This DVD-V
The video standard disc is standardized with an emphasis on video reproduction and does not emphasize various audio reproductions. For example, linear PCM has a sampling frequency of 192 kHz, 24 bits, 2 channels, 74 minutes or more. Sampling frequency 96 for playback and linear PCM
KHz, 24 bits, 6 channels, playback of more than 74 minutes was not a standard. Therefore, DVD-Audio is a DVD standard that emphasizes various audio reproductions.
o Standards have been enacted. This DVD-Audio standard is
As shown in FIG. 6 showing the relationship between the DVD-Video standard and the DVD-Audio standard, the physical layer structure and the file layer structure are the same as the DVD-Video standard, and only the application layer structure is different. However, DVD-Video standard and DVD-Audio
o In the standard, there is a part where the application layer structure is partially common. FIG. 7 shows the DVD-Video standard and
Shows a comparison of the contents of the DVD-Audio standard (Note: DV
D-Video Standard Ver.1.0 Published August 1996, D
VD-Audio Standard Ver.1.0 issued March 1999).

The data structure of the DVD standard is roughly divided into Volu
It is divided into me zone and File zone. In the Volume zone, information on files in the File zone is recorded. In the File zone, video data files, audio data files, and files other than audio / video data (for example, computer data) are recorded. The files other than the video data file, audio data file, and audio / video data are D
VD-Video zone, DVD-Audioz
one, DVD-Others zone.

FIG. 8 shows a file data structure of a DVD-Video standard disc. DVD-Volume z
one81, DVD-Video zone82, DV
Three D-Others zones 83 are defined. Among them, DVD-Video zone 82 is
One video disc management information 84 (Video Manager:
Hereafter, it is composed of one or more video title sets 85 (Video TitleSet: hereinafter called VTS).

On the other hand, Audio zone and Video
FIG. 9 shows a file data structure of a DVD-Audio standard disc having both zones. DVD-Vol
Ume zone91, DVD-Audio zone
e92, DVD-Video zone93, DV
Four D-Others zones 94 are defined. Among them, DVD-Audio zone92,
One audio disc management information 95 (Audio Manag
er: AMG) and one or more audio title sets 96 (Audio Title Set: ATS). DVD-Video ZO
Ne93 is one piece of video disc management information 97 (Vide
o Manager: hereinafter referred to as VMG, and one or more video title sets 98 (Video Title Set: hereinafter VTS)
). That is, DVD-A
According to the audio standard, DVD-Audio is stored in the same disc.
io zone92 and DVD-Video zone9
3 at the same time. DVD-A
When selecting the title of audio zone92,
ATS96 (# 1 to #m) is selected and DVD-Vid
When selecting the title of eo zone93, VT
S (# 1 to #n) 98 is selected. DVD-Video
o zone93 has VMG97, but DV
When managing as a D-Audio standard disc, V
The entire disc is managed using the AMG 95 instead of the MG 97. When this disc is managed as a DVD-Video standard disc, VMG is used instead of AMG95.
97 is used to manage the entire disk.
Zone 92 cannot be reproduced.

[0006] DVDs with only an audio zone
Fig. 10 shows the file data structure of the Audio standard disc.
Shown in In this case, since there is no video zone,
Disk management information is not VMG but AMG only.

In a DVD-Audio standard disc including both ATS and VTS as shown in FIG.
FIG. 5 shows a case of reproducing using G, and FIG. 4 shows a case of reproducing using VMG. First, in the case of reproducing using the AMG 60 in FIG. 5, whether the selected title is the ATS or the VTS is determined by the Audio Title in the title set search pointer 66 included in the AMG 60.
e Category information 67 is included.

As shown in FIG. 5, the title set management information 68 finally includes object position information 75 indicating the position of the audio / video data on the optical disc in the lower hierarchy, and the reproduction order of the audio / video data. And sequence information 76 indicating program chain information 7
4 (Program Chain Information: hereinafter referred to as PGCI). In the case of reproduction, the title set specified by PGCI in the title set management information is reproduced. Conversely, even if audio / video data exists as a title set, it will not be reproduced unless the reproduction order indicating the data is specified by the PGCI. Next, when reproducing using the VMG 40 as shown in FIG.
Since the title set search pointer 45 included in the G40 has no information indicating the ATS and indicates the VTS 41, only the VTS 41 can be selected.

There are the following three types of DVD disks according to disk management information. That is, a DVD-Video standard disc having only VMG disc management information,
DVD-Aud having only AMG disk management information
An io standard disc, a DVD-Audio standard disc having both VMG and AMG disc management information. In the case of DVD-Video standard discs, playback is performed in accordance with VMG disc management information. DVD-
In the case of an Audio standard disc, both AMG and VMG disc management information may be present, but when reproducing, the disc is always reproduced using either one of the disc management information depending on the type of player. At this time,
When VMG is used, only VTS is managed. AMG
If ATS is used, ATS and VTS are managed, but AMG
In this case, since the area code management and the navigation command defined by the VMG are not partially defined, the entire VTS is not necessarily managed by the AMG disk management information. That is, the number #n of VTSs to be managed by the AMG shown in FIG. 5 is equal to or less than the number #p of VTSs to be managed by the VMG shown in FIG.

When this reproducing method is considered in combination with a player, the result is as shown in FIG. That is, the conventional D
DVD with only VTS on VD video player 111
When the video standard disc 112 is reproduced, all VTSs are reproduced according to the VMG disc management information, and the AT
DVD with both AMG and VMG with S and VTS mixed
-When the Audio standard disc 114 is reproduced, the reproduction is performed in accordance with the disc management information of the VMG, so that only all VTSs except the ATS are reproduced. On the other hand, the DVD universal player 113
Then, when the DVD-Audio standard disc 114 having both AMG and VMG is reproduced, since it is reproduced according to the disc management information of AMG, a part of ATS and VTS is reproduced. This relationship is shown in a table in FIG.

[0011]

If the DVD-Vid
eo standard disc 112 and DVD-Audio standard disc 116, and DVD-A in which ATS and VTS are mixed
A DV that can play all of the audio standard discs 114
Even if the D universal player 113 is designed, the DVD-
The video standard disc 112 uses a VMG and a DV
AMG is used for D-Audio standard discs 114 and 116.
Since the title is defined to be played back using, the following problem exists. That is, the VTS of the disk 112 is changed using the VMG, and the VTS of the disk 112 is changed using the AMG.
All 16 ATSs can be played, but when playing the disc 114 using AMG, only a part of the ATS and VTS can be played.
All of the VTSs may not be playable.

That is, a VTS that cannot be reproduced depending on the type of disc even if it is a DVD universal player
Will remain. In such a universal optical disc reproducing apparatus, a DV including both VMG and AMG is used.
Even if a D-Audio standard disc is reproduced, it is required that all ATSs and VTSs can be reproduced.

Accordingly, the present invention provides a DVD-ROM containing a plurality of different types of disc management information such as VMG and AMG.
An optical disc reproducing apparatus (DV) capable of reproducing all ATSs and VTSs even when reproducing an Audio standard disc.
D universal player).

[0014]

According to a first aspect of the present invention, there is provided an optical disk reproducing apparatus comprising:
Audio / video data storage area for storing one or more audio title sets or video title sets, and audio / video sequence information and audio indicating a reproduction order of a predetermined number of audio / video data constituting the audio / video sequence / Title set management information storage area for storing object position information indicating the position of the video data on the optical disk, title set position information indicating the position of the title set on the optical disk, and disk management information for managing the entire disk And a disc management information storage area for storing the audio / video data, the audio / video sequence information, and the audio data from the optical disc. Reading means for reading and reproducing the project position information, the title set position information, and the disc management information, control means for controlling the reading means, and a disc obtained from the one or more kinds of disc management information storage areas. Storage means for storing management information; and external input receiving means for receiving an external input of disk management information selected by a user among a plurality of types of disk management information obtained from the one or more types of disk management information storage areas Wherein the control means comprises: the audio / video sequence information;
Reading the object position information, the title set position information, and the disc management information from the optical disc, and according to the disc management information, the title set position information, the audio / video sequence information, and the object position information, If the read means is controlled so as to sequentially reproduce the video data, and if there is an instruction to select one of the plurality of types of disk management information, the disk management information is selected in accordance with the instruction and included in the disk management information. Audio data or video data is reproduced according to title set position information, sequence information, and object position information.

According to a second aspect of the present invention, there is provided an optical disc reproducing apparatus for managing one or more audio title sets or video title sets and audio title sets for managing the entire titles of the audio title sets or video title sets. An optical disc reproducing apparatus for reproducing an optical disc storing disc management information, video disc management information, audio / video sequence information, object position information, and title set position information on the same medium, wherein the audio title is read from the optical disc. Read out a set or video title set, audio disc management information, video disc management information, audio / video sequence information, object position information, and title set position information; Information reading means for storing the audio / video sequence information, object position information, and title set position information in a buffer memory; storage means for storing the read audio disk management information and video disk management information; Stored in the storage means, of the disk management information selected by the user, external input receiving means for receiving an external input, based on one of the audio disk management information and video disk management information selected by the external input receiving means, Control means for controlling the information reading means so as to read and reproduce necessary audio data or video data from the optical disc.

According to a third aspect of the present invention, in the optical disk reproducing apparatus according to the second aspect, the control means includes the selected audio disk management information or video disk management information. Title set position information indicating the position of the title set to be reproduced, and sequence information indicating the playback order of the audio or video data stored in the buffer memory.
And controlling the reading means to reproduce the audio or video data based on object position information indicating the position of the audio or video data on the optical disk.

An optical disk reproducing method according to a fourth aspect of the present invention provides an audio disk management method for managing one or more audio title sets or video title sets and titles of the audio title set and the video title set. An optical disc reproducing method for reproducing an optical disc in which information, video disc management information, audio / video sequence information, object position information, and title set position information are stored on the same medium. Reading video title set, audio disc management information, video disc management information, audio / video sequence information, object position information, and title set position information; Storing the read audio disc management information and the video disc management information; and accepting an external input of disc management information selected by a user among the stored audio disc management information or video disc management information; Reading data from the optical disk based on the audio disk management information or the video disk management information selected by the externally input selection instruction signal and playing back necessary audio data or video data. .

An optical disk reproducing apparatus according to a fifth aspect of the present invention has a physical layer defining a physical structure, a file layer defining a data file structure, and an application layer defining an application structure. And an optical disc reproducing apparatus for reproducing data recorded on an optical disc having at least two or more application layers on a file layer, wherein management information in each of the plurality of application layers, data included in the application, and sequence information Information reading means for reading object position information and title set position information; storage means for storing the plurality of management information read by the information reading means; and a plurality of management information stored in the storage means. Of the information
Selecting means for selecting desired management information in accordance with a user's selection; and reading the necessary data from the optical disc based on the desired management information selected by the selecting means, and reproducing the information. And control means for controlling.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. (Embodiment 1) FIG. 1 is a block diagram showing the overall configuration of an optical disk reproducing apparatus according to a first embodiment of the present invention.
In FIG. 1, 1 is a spindle motor for rotating the optical disk 20, 2 is an optical pickup for reading signals recorded on the optical disk 20, 3 is a mechanism control unit for controlling the spindle motor 1 and the optical pickup 2, 4 is A signal processing unit for demodulating a digital signal from a signal of the optical pickup 2; and 5, an AV decoder for decoding video data and audio data obtained from the signal processing unit 4 via a system control unit 17 and a buffer memory 16, which will be described later. Department. The AV decoder unit 5 includes a system decoder 6, a video decoder 7, a sub-picture decoder 8,
It comprises an audio decoder 9 and a video synthesizing unit 10. Reference numeral 11 denotes a still image data storage unit that stores still image data recorded on a DVD-Audio standard disk, 12 denotes a video disk management information storage unit that stores video disk management information, and 13 denotes an audio that stores audio disk management information. Disk management information storage unit, 1
4 is a remote control transmitter, 15 is a remote control light receiving unit for receiving a remote control signal, 16 is a buffer memory for temporarily storing data from the signal processing unit 4 via a system control unit 17 described later, and 17 is a remote control light receiving unit 15 Receiving the signal of
A system control unit that controls the mechanism control unit 3, the signal processing unit 4, the buffer memory 16, the still image data storage unit 11, the AV decoder 5, the video disc management information storage unit 12, and the audio disc management information storage unit 13.

The mechanism control section 3 controls a mechanism system including a spindle motor 1 for driving the disk and an optical pickup 2 for reading signals recorded on the disk. Specifically, the mechanism control unit 3 controls the spindle motor speed according to the track position information instructed by the system control unit 17, and simultaneously controls the actuator of the optical pickup 2 to move the pickup position, When an accurate track is detected by the control, rotation wait is performed until a desired physical sector is recorded, and a signal is continuously read from a desired position.

The signal processing section 4 performs signal processing such as amplification, waveform shaping, binarization, demodulation, and error correction on the signal read from the optical pickup 2, and stores the signal in the buffer memory 16 in units of logical blocks. I do. System control unit 1
7 reads out the data stored in the buffer memory 16 and, if the data is video disk management information, stores the data in the video disk management information storage unit 12. if,
If the disc management information is audio disc management information, it is stored in the audio disc management information storage unit 13. If the data read from the buffer memory 16 is still image data, the still image data storage unit 11
Is stored in Similarly, if the data read from the buffer memory 16 is data in the title set management information storage area, the system control unit 17 reads audio / video sequence information and object position information, and Decoder 6
Transfer to

The AV decoder unit 5 converts the processed audio / video data into an original video signal or audio signal.

The system decoder 6 includes a buffer memory 1
6 from the stream ID and sub-stream ID information included in the audio / video data transferred in packet units via the system control unit 17, the video data is sent to the video decoder 7, and the sub-picture data is sent to the sub-picture decoder. 8, and outputs the audio data to the audio decoder 9. When the system control unit 17 inputs still image data from the still image data storage unit 11 to the system decoder 6, the still image data is output to the video decoder 7 as video data.

The video decoder 7 includes a system decoder 6
It decodes and decompresses the video data input from and outputs it to the video synthesizing unit 10 as a digital video signal.

The sub-picture decoder 8 comprises a system decoder 6
If the sub-picture data input from is a run-length compressed image data, it decodes and decompresses it and outputs it to the picture synthesizing section 10 in the same format as the video signal.

The audio decoder 9 decodes and decompresses audio data input from the system decoder 6 and outputs it as a digital audio signal. The digital audio signal is converted into an analog audio signal by a circuit (not shown) and then input to an audio input of a display device or an audio amplifier.

The video synthesizing unit 10 outputs a digital video signal obtained by mixing the output of the video decoder 7 and the output of the sub-video decoder 8 at a ratio specified by the system control unit 17. This video signal is converted into an analog video signal by a circuit (not shown) and then input to a video input of a display device.

The remote controller 14 receives a reproduction control instruction from a user operation. FIG. 2 shows an example of the key arrangement of the remote controller 14. The "menu" key 21 is for calling a whole menu which displays a plurality of menu items (titles) in a list format to be displayed during the reproduction of the disc. A “ten” key 22 and a “direction” key 23 are for selecting a displayed menu item. An "enter" key 24 is for confirming the selected item. “AMG / VM
A "G" key 25 is for switching disc management information.The user selects a desired title from the displayed whole menu by using the "ten" key 22 and the "direction" key 23.

The remote control light receiving section 15 receives an infrared key signal transmitted when a key of the remote control 14 is pressed, and transmits key data to the system control section 17. The buffer memory 16 temporarily stores data input from the signal processing unit 4 via the system control unit 17.

Although not shown, the system control unit 17 includes a program memory for storing a program for realizing a function as the system control unit, a processor for executing the program, a general-purpose register, and a timer. Controls the entire device. Specifically, the data transferred from the signal processing unit 4 is stored in the buffer memory 16, the data is read from the buffer memory 16, and control is performed based on the type of the read data. That is, if the read data is disk management information, the data is stored in the video disk management information storage unit 12 or the audio disk management information storage unit 13 and control is performed based on the content. In the case of title set management information such as audio / video sequence information or object position information, control is performed based on the contents thereof, and audio / video sequence information is controlled.
If the data is video data, the audio / video data is transferred from the buffer memory 16 to the AV decoder unit 5, and if the data is still image data of a DVD-Audio standard disc, the data is stored in the still image data storage unit 11. Is done. The mechanism controller 3 calculates which track on the disk corresponds to the logical block to be read next, specifies the track position, and instructs the mechanism controller 3 to perform block read control. Also, the remote control light receiving unit 1
5 receives the received signal, converts the received signal into a data code corresponding to the pressed key, and performs reproduction control according to the key.

The operation of the optical disk reproducing apparatus configured as described above will be described below. FIG.
5 is a flowchart illustrating processing contents of a system control unit 17; First, when the system control unit 17 detects that the disc has been loaded into the playback device (step 31), the system control unit 17 controls the mechanism control unit 3 and the signal processing unit 4 to read the data of the disc in a stable manner. When rotation control is performed and stable data reading is possible, move the optical pickup to the Volume zone and
Reads file information of File zone recorded in zone. The disk management information is read based on the read file information, and if it is video disk management information, the data is stored in the video disk management information storage unit 12 and the process is terminated. If it is audio disc management information, first, the audio disc management information storage unit 1
After the data is stored in No. 3, the video disk management information is further searched, and if there is video disk management information, it is read out and stored in the video disk management information storage unit 12 (step 32). Next, the video disk management information (hereinafter referred to as V) is stored in the disk management information storage units 12 and 13.
MG) and audio disc management information (hereinafter A
MG) is stored, and if the VM
If there are both G and AMG disk management information, it is checked whether the user has switched the disk management information (steps 33 and 34). If the disc management information is AMG, the audio disc management information is read from the audio disc management information storage unit 13 (step 35,
36). On the other hand, if the disk management information is VMG, the video disk management information is read from the video disk management information storage unit 12 (step 37).

When AMG is selected as the disc management information, if the user selects a desired title (step 38), the system control unit 17 selects the title according to the title set search pointer information in the disc management information. The title is an audio title set (hereinafter ATS) or a video title set (V
TS) (step 39). If A
If it is a TS, the system control unit 17 controls the audio title set management information in the ATS including the selected title and its attribute table (audio title set management table, program chain information table)
Is read and stored in the system control unit 17 (step 40), and the program branches to the first program chain of the audio title (step 41). Further, when this program chain group is reproduced and the reproduction is completed, step 3
Return to 3 (step 42). On the other hand, if the selected title is a VTS, the system control unit 17 reads out the video title set management information in the VTS including the selected title and its attribute table, and stores the information in the system control unit 17. (Step 44), the program branches to the first program chain of the video title (Step 45). In addition, regenerate this program chain,
Upon completion of the reproduction, the process returns to step 33 (step 4).
6).

On the other hand, when VMG is selected as the disc management information, if the user selects a desired title (step 43), the subsequent operation is performed as described above.
This is equivalent to the case where VTS is reproduced from MG.

DVD-Au in which ATS and VTS are mixed
FIG. 4 and FIG. 5 show a management file structure in which a Dio standard disc is managed using VMG and AMG, respectively.
This will be described with reference to FIG.

FIG. 4 shows a DVD-Audio standard DVD-
The file structure in the video zone is shown.
The file structure includes one piece of video disc management information (V
MG) and one or more video title sets (VTS)
It is composed of Reference numeral 40 denotes video disc management information (VMG) including management information of the entire video title,
Reference numeral 1 denotes a video title set collection (VTS) as a collection of one or more video title sets. In the VMG 40, reference numeral 42 denotes a video manager (VMGI) including a video manager information management table 43 and a title set search pointer table 44;
3 is a video manager information management table including the head address of each title set search pointer, 44 is a title set search pointer table including title set search pointer data of each title, 45 is title set position information, and 45 is a video title set in the VTS. Title set search pointer indicating the management address,
46 is video title set management information including a video title set management table 48 of one VTS and a program chain information management table 49; 47 is a video title set which is the substance of a video title; 48 is the start address of each program chain information A video title set management table including a video title set program chain management table 50, a program chain information search pointer 51, and program chain information 52;
0 is a video title set program chain management table including the head address of each program chain information search pointer, 51 is a program chain information search pointer indicating a management address of each program chain information, and 52 is a program chain including object position information and sequence information. Information, 53 is object position information indicating the position of the title on the disc, and 54 is sequence information indicating the playback order of the title.

When the user selects a title, VMG4
The title set search pointer 45 in 0 is selected. The system control unit 17 reads the address of the corresponding video title set management information 46 from the selected title set search pointer 45, searches the program chain information table 49 for the program chain information 52, and sets the playback order to the sequence information 54 as the sequence information 54. The optical pickup is stored in the control unit 17, obtains the object position information 53 on the disk, and controls the mechanism control unit 3 and the signal processing unit 4 to move the optical pickup to the target object position, and Perform playback. Basically all video title sets VTS # 1 from VMG
~ # P can be specified.

FIG. 5 shows a DVD managed using AMG.
-Audio zone and DVD-Video zone
14 shows a management file structure of the DVD-Audio standard having the letter e. In this case, it is composed of one audio disc management information (AMG), one or more audio title sets (ATS), and one or more video title sets (VTS). DVD-Video
Although there is a VMG in the zone, when the management is performed using the AMG, the description of the VMG is omitted because the VMG is not used. Reference numeral 60 denotes audio disc management information (AMG) including management information of the entire title, 61 denotes an audio title set collection (ATS) as a set of a plurality of audio title sets, and 62 denotes a set of a plurality of video title sets. As a video title set collection (VTS). 63 is an audio manager (AMGI) including an audio manager information management table 64 and a title set search pointer table 65; 64 is an audio manager information management table including a head address of each title search pointer; 65 is a title set of each title Title set search pointer table including search pointer data,
Reference numeral 66 denotes title set position information, which is a title set search pointer indicating the management address of each title set in the ATS and VTS. 67 is included in the title set search pointer 66, and the title is ATS or VT.
Audio Title Category indicating S,
Reference numeral 68 denotes audio title set management information including an audio title set management table 70 of one ATS and a program chain information table 71, 69 denotes an audio title set which is the substance of an audio title, and 70 denotes a head address of each program chain information. The audio title set management table 71 includes an audio title set program chain management table 72 and a program chain information search pointer 73.
, A program chain information table including program chain information 74, 72 is an audio title set program chain management table including a head address of each program chain information search pointer, and 73 is each program chain information indicating a management address of each program chain information. A search pointer 74 is program chain information including object position information and sequence information, 75 is object position information indicating the position of the title on the disc, and 76 is sequence information indicating the playback order of the title. The VTS is the same as in FIG. 4 and will not be described.

When the user selects a title, AMG6
The title set search pointer 66 in 0 is selected. The system control unit 17 reads the ATS / VTS selection information 67 included in the selected title set search pointer 66 and selects ATS or VTS.
Then, the corresponding audio or the address of the audio title set management information 68 is read out from the title set search pointer 66, the program chain information 74 is searched from the program chain information table 71, and the reproduction order is set as the sequence information 76 as the system control unit 17. The optical pickup is moved to the target object position by controlling the mechanism control unit 3 and the signal processing unit 4 to obtain the object position information 75 on the disk and reproduce the target ATS or VTS. I do. At this time, there is a possibility that all video title sets VTS cannot be reproduced from the AMG 60. This is because the AMG 60 does not necessarily define the area code management and navigation commands defined by the VMG, so that the entire VTS is not necessarily managed by the AMG 60 disk management information. Therefore, in FIGS. 4 and 5, although the disks are the same, the number of VTSs manageable from the AMG is equal to or less than the number of VTSs manageable from the VMG.

According to the DVD-Audio standard, DVD-Audio
If you have only the io zone, the AT from AMG
It only manages S.

As described above, according to the first embodiment, A
A storage means for storing each of MG and VMG and a selection means for selecting one of the stored AMG and VMG according to an external input are provided.
Even when a DVD-Audio standard disc having both MGs is played, an optical disc playback apparatus (DVD universal player) capable of playing all ATSs and VTSs can be provided.

Further, in the first embodiment, only the case of reproducing a DVD optical disk has been described.
Has a physical layer 130 defining a physical structure, a file layer 131 defining a data file structure, and an application layer 132 defining an application structure. At least two or more layers are provided on a common physical layer and a file layer. The present invention can be applied to any optical disk having the application layers (132a, 132b), wherein the storage means stores the management information of each application, and the selecting means can select any of the respective management information in response to an external input. By doing so, even an optical disc having at least two or more application layers can be reproduced according to a user's selection.

[0042]

As described above, according to the optical disk reproducing apparatus of the first aspect of the present invention, the audio / video data storage area for storing one or more audio title sets or video title sets, and the audio / video data storage area.
A predetermined number of audio /
A title set management information storage area for storing audio / video sequence information indicating an order of reproduction of video data and object position information indicating a position of the audio / video data on the optical disc; An optical disc reproducing apparatus having at least one title set position information indicating a position and one or more disc management information storage areas for storing disc management information for managing the entire disc, wherein the playback apparatus comprises: Read means for reading and reproducing / video data, the audio / video sequence information, the object position information, the title set position information, and the disc management information; control means for controlling the read means; Multiple species Storage means for storing the disc management information obtained from the disc management information storage area of the 1
External input receiving means for receiving an external input of the disk management information selected by the user among a plurality of types of disk management information obtained from the type or a plurality of types of disk management information storage areas, and the control means Reading the audio / video sequence information, the object position information, the title set position information, and the disc management information from the optical disc, and setting the disc management information, the title set position information, the audio / video sequence information, and In accordance with the object position information, the read means is controlled so as to sequentially reproduce the audio / video data, and if there is an instruction to select one of the plurality of types of disk management information, the disk management information is selected according to the instruction. Included in the disk management information. The audio data or the video data is reproduced based on the title set position information, the sequence information and the object position information, so that the DVD-Audio including both the VMG and the AMG is reproduced.
o Even when a standard disc is reproduced, the user can arbitrarily switch the disc management information of the player between AMG and VMG, thereby realizing an optical disc reproducing apparatus (DVD universal player) capable of reproducing all ATSs and VTSs. The effect is obtained.

According to the optical disk reproducing apparatus of the second aspect of the present invention, one or more audio title sets or video title sets and the entire titles of the audio title sets or video title sets are managed. An optical disc reproducing apparatus for reproducing an optical disc in which audio disc management information, video disc management information, audio / video sequence information, object position information, and title set position information are stored on the same medium. Audio title set or video title set, audio disc management information,
Information reading means for reading out video / disc management information, audio / video sequence information object position information, and title set position information, and storing the audio / video sequence information, object position information, and title set position information in a buffer memory; Storage means for storing the read audio disc management information and video disc management information,
External input receiving means for receiving external input of disk management information stored by the storage means and selected by a user;
Control for reading the necessary audio data or video data from the optical disc based on one of the audio disc management information and the video disc management information selected by the external input receiving means, and controlling the information reading means to reproduce the audio data or the video data. Because of this, an effect is obtained that an optical disk reproducing apparatus (DVD universal player) capable of reproducing all ATSs and VTSs can be realized.

According to a third aspect of the present invention, in the optical disk reproducing apparatus according to the second aspect, the control means may control the selected audio disk management information or video disk management information. Based on title set position information indicating the position of the title set included in any of them, sequence information indicating the playback order of the audio or video data, and object position information indicating the position of the audio or video data on the optical disc, Alternatively, since the reading means is controlled to reproduce the video data, there is an effect that the data of the selected title set can be arbitrarily reproduced.

Further, according to the optical disk reproducing method of the present invention, one or more audio title sets or video title sets, and audio title sets for managing the titles of the audio title sets and the video title sets, respectively. An optical disc reproducing method for reproducing an optical disc in which disc management information, video disc management information, audio / video sequence information, object position information, and title set position information are stored on the same medium. Set or video title set, audio disc management information, video disc management information, audio / video sequence information,
Reading the object position information and title set position information; storing the read audio disk management information and video disk management information; and storing the stored audio disk management information and video disk management information. Receiving external input of disc management information selected by the user, and audio disc management information selected by the selection instruction signal input from the outside, or audio data required from the optical disc based on video disc management information, Alternatively, a step of reading and reproducing video data is included, so that the VMG and the AM
Even when a DVD-Audio standard disc including both G is played, all ATSs and VTSs can be played back by enabling the user to arbitrarily switch the disc management information of the player between AMG and VMG. Can be obtained.

According to a fifth aspect of the present invention, there is provided an optical disk reproducing apparatus having a physical layer defining a physical structure, a data file layer defining a data file structure, and an application layer defining an application structure. An optical disc reproducing apparatus for reproducing data recorded on an optical disc having at least two or more application layers on a physical layer and a file layer, wherein each of the management information in the plurality of application layers, and data included in an application , Sequence information,
Information reading means for reading object position information and title set position information; storage means for storing the plurality of management information read by the information reading means; and a plurality of management information stored in the storage means And a selecting unit for selecting desired management information in accordance with a user's selection, and reading data from the optical disk based on the desired management information selected by the selecting unit, and reproducing necessary data. As described above, a control means for controlling the information reading means is provided, so that even when a DVD-Audio standard disc including both a VMG and an AMG is reproduced, the user can freely set the disc management information of the player in the AMG and the VMG. Optical disc that can play all ATSs and VTSs Can be realized raw device (DVD Universal player), the effect is obtained that.

[Brief description of the drawings]

FIG. 1 is an overall configuration block diagram of an optical disc reproducing device according to a first embodiment of the present invention;

FIG. 2 is an external view of an operation portion of the remote control transmitter.

FIG. 3 is a diagram illustrating a flowchart showing processing contents of the system control unit;

FIG. 4 DVD-Video of the DVD-Video standard
Diagram showing file structure in zone

FIG. 5: DVD-Audio of the DVD-Audio standard
Figure showing the management file structure from the AMG when it has a zone and a DVD-Video zone

FIG. 6: DVD-Video standard and DVD-Audio
Diagram showing the relationship between standards in standards

FIG. 7: DVD-Video standard and DVD-Audio
Diagram showing comparison of standard contents

FIG. 8 shows a file data structure of a DVD-Video standard disc.

FIG. 9 is a diagram showing a file data structure of a DVD-Audio standard disc having both an audio zone and a video zone.

FIG. 10: DVD-Au having only Audiozone
Diagram showing the file data structure of a Dio standard disc

FIG. 11 is a diagram showing a relationship between a DVD player and a playback disk.

FIG. 12 is a diagram showing a relationship between a DVD player and a playback disk.

FIG. 13 is a diagram showing the concept of a disc in which the physical layer structure and the file layer structure have the same standard and only the application layer structure is different.

[Explanation of symbols]

Reference Signs List 1 spindle motor 2 optical pickup 5 AV decoder unit 6 system decoder 7 video decoder 9 audio decoder 12 video disk information management information storage unit 13 audio disk information management information storage unit 17 system control unit 20 optical disk 40 video disk management information 41 video title set Collection 42 video manager 43 video manager information management table 44 title set search pointer table 45 title set search pointer 46 video title set management information 47 video title set 48 video title set management table 49 program chain information table 50 video title set program chain management table 51 Program chain information search pointer 52 Program chain information 53 Object position information 54 Sequence information 60 Audio disc management information 61 Audio title set collection 62 Video title set collection 63 Audio manager 64 Audio manager information management table 65 Title set search pointer table 66 Title set search pointer 67 Audio Title Category information 68 Audio title Set management information 69 Audio title set 70 Audio title set management table 71 Program chain information table 72 Audio title set program chain management table 73 Program chain information search pointer 74 Program chain information 75 Object position information 76 Sequence information 81, 91 DVD-Vol me zone 82,93 DVD-Video zone 92 DVD-Audio zone 83,94 DVD-Other zone 84,97 VMG 95 AMG 96 ATS 85,98 VTS 130 physical layer 131 data file layer 132 application layer

Claims (5)

[Claims] An audio / video data storage area for storing one or more audio title sets or video title sets, and an audio / video data indicating a reproduction order of a predetermined number of audio / video data constituting an audio / video sequence. A title set management information storage area for storing video sequence information and object position information indicating the position of the audio / video data on the optical disk, title set position information indicating the position of the title set on the optical disk, and the entire disk A playback device for an optical disc having at least one disc management information storage area for storing disc management information for managing the audio / video data from the optical disc;
Reading means for reading and reproducing the audio / video sequence information, the object position information, the title set position information, and the disc management information; control means for controlling the reading means; and one or more types of disc management A storage unit for storing disk management information obtained from the information storage area; and a disk management information selected by the user from a plurality of types of disk management information obtained from the one or more types of disk management information storage areas. External input receiving means for receiving an external input, wherein the control means causes the audio / video sequence information, the object position information, the title set position information, and the disc management information to be read from an optical disc, Disk management information, Thailand The audio / video sequence information, the audio / video sequence information, and the object position information.
The read means is controlled so as to sequentially reproduce the video data. If there is an instruction to select one of the plurality of types of disc management information, the disc management information is selected in accordance with the instruction, and the disc management information is included in the disc management information. An optical disc reproducing apparatus for reproducing audio data or video data based on title set position information, sequence information, and object position information. 2. An audio title set, a video title set, and audio disc management information, video disc management information, and audio / video management information for managing the entire title of the audio title set or the video title set, respectively. An optical disc reproducing apparatus for reproducing an optical disc storing video sequence information, object position information, and title set position information on the same medium, comprising: an audio title set or a video title set; an audio disc management information; Reads disc management information, audio / video sequence information, object position information, and title set position information, and reads the audio / video sequence information, object Information reading means for storing location information and title set position information in a buffer memory; storage means for storing the read audio disc management information and video disc management information; and External input receiving means for receiving an external input of the selected disc management information; audio disc management information selected by the external input receiving means, or audio data required from the optical disc based on either the video disc management information. Or an control unit for controlling the information reading unit so as to read and reproduce video data. 3. The optical disk reproducing apparatus according to claim 2, wherein the control means includes: title set position information indicating a position of a title set included in either the selected audio disk management information or the video disk management information. And reproducing audio or video data based on sequence information indicating the reproduction order of the audio or video data stored in the buffer memory and object position information indicating the position of the audio or video data on the optical disk. An optical disc reproducing apparatus for controlling the reading means. 4. One or more audio title sets or video title sets, audio disc management information, video disc management information, and audio / video for managing titles of the audio title sets and the video title sets, respectively. An optical disc reproducing method for reproducing an optical disc storing sequence information, object position information, and title set position information on the same medium, wherein the audio title set or video title set, audio disc management information, and video disc are read from the optical disc. Reading management information, audio / video sequence information, object position information, and title set position information; Storing disc management information; accepting an external input of disc management information selected by a user from the stored audio disc management information and video disc management information; and a selection instruction signal input from outside Reading necessary audio data or video data from the optical disk based on the audio disk management information or the video disk management information selected by the above, and reproducing the data. 5. A physical layer defining a physical structure, a file layer defining a data file structure, and an application layer defining an application structure, wherein at least two or more application layers are provided on a common physical layer and a file layer. An optical disc reproducing apparatus for reproducing data recorded on an optical disc having: information for reading out management information of each of the plurality of application layers, data included in an application, sequence information, object position information, and title set position information Reading means; storage means for storing the plurality of pieces of management information read by the information reading means; and desired management according to a user's selection among the plurality of pieces of management information stored in the storage means. Selecting means for selecting information; and the selecting means Based on the selected desired management information by reading necessary data from the optical disc, and a control means for controlling the information reading means to play, an optical disk reproducing apparatus, characterized in that.