JPH11238367A - Usable key display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for reporting a key operable at that time point among various operating keys to a user. SOLUTION: This system uses an optical disk recording reproduction control information PCI for controlling the reproduction of recorded data and video object unit user operation control information VOBU-UOP-CTL contained in this PCI. The system utilizes a step (ST500) for extracting a user operation bit group UOP for determining the possibility of user operation from VOBU- UOP-CTL and steps (ST506 and ST508) for reporting key operation, which is not inhibited in spite of the contents of the user operation bit group UOP, to the user when this user operation bit group UOP contains contents (UOP='1') inhibiting the user operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to improvement of operability in a DVD playback system.

[0002]

2. Description of the Related Art In recent years, a system for reproducing an optical disk on which video (moving image), audio, and the like are recorded has been developed. Popular for reproduction purposes.

[0003] Among them, an international standardized MPEG2 (Moving Picture Experts Group) system is used, and AC-3 (digital audio compression) is used.
A DVD (digital versatile disk) standard employing another audio compression method has been proposed. This DV
The D standard includes a read-only DVD video (or DVD-ROM), a write-once DVD-R, and a DVD-RW (or DVD-RAM) that can be repeatedly read and written.

The standard of DVD video (DVD-ROM) conforms to the MPEG2 system layer, and MPEG-2 is used as a moving image compression system and linear PC is used as an audio recording system.
It supports AC3 audio and MPEG audio in addition to M. In addition, this DVD video standard
For subtitles, sub-picture data obtained by run-length-compressing bitmap data and control data (navigation data) for playback control such as fast-forward / rewind data search are added. In addition, this standard specifies that ISO 96 data can be read by a computer.
60 and UDF bridge formats are also supported.

[0005] Further, the DVD standard has a multi-angle function (moving data of various camera angles that are simultaneously progressed is recorded in a time-division manner, so that only the angle desired by the user to be viewed can be selectively reproduced. Function), a menu function (main video data and sub-video data are combined to display a menu, and a simple command called a button command is used to jump to a scene desired by the user, or to output a voice or subtitle desired by the user. Function to select the type) and so on, so that the user can enjoy an interactive way like never before. The title creator can use this function to freely create various menus and interactive movies.

[0006]

SUMMARY OF THE INVENTION However, DVD
As a result of incorporating various functions into the standard, the key operations of the playback device are correspondingly complicated. Therefore, depending on the contents of the title, a general user may not be able to distinguish between an operable key and an unoperable key.

[0007] Now, consider creating an interactive drama. During the course of this drama, a playback scene branch point may be required due to its development. At the scene branch point, the development of the playback scene is changed in accordance with the selection (action) from the user. However, in some scenes, there are key operations that the title creator does not want to use.

In the DVD standard, such a key operation can be prohibited. However, in this case, since the user does not know whether the key operation is prohibited or not, there is a possibility that even if the prohibited key is pressed without knowing anything, there is no reaction and there is a possibility that the user is confused.

As a countermeasure for this problem, there is a method of displaying a mark "the key cannot be used" to the user when a prohibited key operation is performed. However, in this method, it is only possible to know that the key operation is prohibited at the time when the key is pressed.
In this case, the user is forced to perform a useless operation of pressing a key that cannot be operated, and it is inconvenient for a general user who does not know in advance in which scenes which key can be used. Absent.

A first object of the present invention is to provide a usable key display system capable of notifying a user of a key which can be operated at the time among various operation keys.

A second object of the present invention is to provide a remote controller which can notify a user which of the various operation keys can be operated at that time.

A third object of the present invention is to provide a usable key display method capable of notifying a user of a key which can be operated at the time among various operation keys.

A fourth object of the present invention is to provide a digital information recording medium having information for notifying a user of a key which can be operated at the time among various operation keys.

[0015] A fifth object of the present invention is to reproduce recorded information from a digital information recording medium having information for notifying a user of operable keys. To provide a playback system that can notify a user of keys that can be operated by the user.

[0015]

In order to achieve the first object, a usable key display system according to the present invention comprises:
A title (TT) as a recorded content body and a user operation bit group (TT_PB_TY) for determining whether or not a user operation is possible.
(UOP of VOBU_UOP_CLT or UOP of PGC_UOP_CLT) is used.

In this usable key display system, the means (MPU50; ST500) for extracting the user operation bit group (UOP) from the medium (10), and the contents in which the user operation bit group (UOP) prohibits user operation When (UOP = 1b) is included (YES in ST504),
Means for selectively displaying operation keys not prohibited by the contents of the user operation bit group (UOP) (MPU 50; ST
506, ST508).

In order to achieve the second object, the remote controller according to the present invention includes a title (TT) as a recording content main body and a group of user operation bits (UOP, VOBU_U of TT_PB_TY) for determining whether or not user operation is possible.
UOP of OP_CLT or PGC_UOP_CLT
Of the title (TT) from the medium (10) on which the title (TT) is recorded.

When the user operation bit group (UOP) includes the contents (UOP = 1b) that prohibits the user operation (YES in ST504),
An operation key that is not prohibited by the contents of the user operation bit group (UOP0 to UOP24) is conspicuously displayed (ST508) (FIG. 77).

In order to achieve the third object, according to the usable key display method of the present invention, the playback control information (PCI) for controlling the playback of the recorded data and the playback control information (PCI) are included in the playback control information (PCI). Playback control information general information (PG
C_GI) and this reproduction control information general information (PGC_G
A medium (10) in which the video object unit user operation control information (VOBU_UOP_CTL) included in I) is recorded is used.

This usable key display method is based on the video object unit user operation control information (VOBU_
User operation bit group (UOP0 to UOP24; UOP0 to UOP24; UOP_CTL);
5) (ST500; FIG. 87), and when the user operation bit group (UOP0 to UOP24) includes the content (UOP = 1b) that prohibits the user operation (YES in ST504), the user operation bit group ( UO
(ST506, ST508) notifying the user of a key operation that is not prohibited by the contents of P0 to UOP24).

In order to achieve the fourth object, the digital information recording medium of the present invention has a title (TT) as a recording content body and title search information (TIT) for retrieving the recording content of the title (TT). VMGI / TT_SRP
T / TT_SRP; FIG. 8), and reproduction title format information (T) included in the title search information (TT_SRP).
T_PB_TY; FIG. 11) is recorded.

In this medium, after the reproduction title format information (TT_PB_TY) is read into the reproduction apparatus, a user operation bit group (UOP
0 to UOP1; FIGS. 11 and 75).

The user operation bit group (UOP0 to UO0)
When P1) includes contents (UOP = 1b) for inhibiting user operation, the user operation bit group (UOP0 to UO0)
Information that allows the user to be notified of a key operation that is not prohibited by the contents of P1) is provided to the playback device.

In order to achieve the fourth object,
In another digital information recording medium of the present invention, video title set information (VTSI; FIG. 32) describing information about a title (TT) as a recorded content main body, and a program included in the video title set information (VTSI) Chain information table (PGCIT; FIG. 38)
And this program chain information table (PGCI
T), program chain information (PGCI; FIG. 25) describing information on a program chain (PGC) that constitutes a part of the title (TT), and a program chain included in the program chain information (PGCI). The general information (PGC_GI; FIG. 29) and the program chain user operation control information (PGC_GI) included in the program chain general information (PGC_GI)
UOP_CTL; FIG. 30) is recorded.

In this medium, the program chain user operation control information (PGC_UOP_CTL) includes a group of user operation bits (UOP0 to UOP0) for determining whether or not a user operation is possible.
UOP24; FIG. 30, FIG. 75).

The user operation bit group (UOP0 to UO0)
P24) prohibits user operation (UOP = 1b)
, The user operation bit group (UOP0 to UOP
Information that allows the user to be notified of a key operation that is not prohibited by the contents of OP24) is provided to the playback device.

In order to achieve the fourth object,
In still another digital information recording medium according to the present invention, reproduction control information (PCI;
FIG. 17), reproduction control information general information (PGC_GI; FIG. 18) included in the reproduction control information (PCI), and video object unit user operation control information (VOBU) included in the reproduction control information general information (PGC_GI).
_UOP_CTL; FIG. 19) is recorded.

In this medium, the video object unit user operation control information (VOBU_UOP_CT)
L) includes a user operation bit group (UOP0 to UOP24; FIGS. 20 and 75) for determining whether or not a user operation is possible.

The user operation bit group (UOP0 to UO0)
P24) prohibits user operation (UOP = 1b)
, The user operation bit group (UOP0 to UOP
Information that allows the user to be notified of a key operation that is not prohibited by the contents of OP24) is provided to the playback device.

In order to achieve the fifth object, the reproduction system of the present invention provides an information recording medium (10) having user operation prohibition information (UOP) for designating operation keys whose use is prohibited during reproduction. The playback device (FIG. 76) operated by a remote controller (5 in FIGS. 77 to 80) having various operation keys is used for reproducing recorded information (title TT and the like) from the server. In this system, (a) the reproducing device (FIG. 76) transmits the user operation prohibition information (UO) from the information recording medium (10).
Extraction means for extracting P) (MPU 50 in FIG. 76 + FIG. 87)
ST500); a prohibition key determination unit (MPU50 + ST502) for determining a key whose operation is prohibited based on the user operation prohibition information (UOP) extracted from the extraction unit and providing a result of the determination; A transfer unit (4A) for transferring a determination result from the key determination unit to the remote controller (5). Also,
(B) receiving means (5A) for receiving the determination result transferred from the transfer means (4A) by the remote controller (FIG. 77); based on the determination result received by the receiving means (5A) And an available key display means (5) for selectively displaying the available operation keys so as to stand out.
B to 5D).

In order to achieve the fifth object,
According to another reproduction system of the present invention, user operation prohibition information (UOP) for specifying an operation key whose use is prohibited during reproduction.
A remote controller for reproducing recorded information (title TT, etc.) from an information recording medium (10) having a key and having various operation keys (5 in FIGS. 77 to 80)
The playback device (FIG. 76) operated by the user is used. In this system, (a) the playback device (FIG. 76)
Extraction means for extracting the user operation prohibition information (UOP) from the information recording medium (10) (MPU 50+ in FIG. 76)
ST600 in FIG. 88); and transfer means (4A) for transferring the user operation prohibition information (UOP) extracted from the extraction means to the remote controller (5). Also, (b) the remote controller (FIG. 77)
Receiving means (5A) for receiving the user operation prohibition information (UOP) transferred from the transfer means (4A);
Based on the user operation prohibition information (UOP) received by the receiving means (5A), a prohibited key determining means for determining a key whose operation is prohibited and providing a result of the determination (FIG. 77)
MPU5B + ST606) and usable key display means (5B to 5D) for selectively displaying prominent operation keys based on the determination result from the prohibited key determination means.

In order to achieve the fifth object,
Still another reproduction system according to the present invention includes a user operation prohibition information (U) specifying an operation key whose use is prohibited during reproduction.
OP) for reproducing recorded information (title TT and the like) from the information recording medium (10) having the remote control (FIGS. 77 to 80).
The playback device (FIG. 76) operated according to 5) is used. In this system, (a) the playback device (FIG. 7)
6) extracting means (MP in FIG. 76) for extracting the user operation prohibition information (UOP) from the information recording medium (10).
U50 + ST700 in FIG. 89); a prohibition key determination unit (U0) which determines a key whose operation is prohibited based on a change in the content of the user operation prohibition information (UOP) extracted from the extraction unit and provides a result of the determination. MPU50 + ST7
02 to ST704); and a transfer means (4A) for transferring the determination result from the prohibited key determination means to the remote controller (5). (B) a receiving means (5A) in which the remote controller (FIG. 77) receives the determination result transferred from the transferring means (4A);
And usable key display means (5B to 5D + ST7) for selectively displaying prominent operation keys based on the determination result received by the receiving means (5A).
10).

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A usable key display system according to an embodiment of the present invention will be described below with reference to the drawings. In order to avoid redundant description, common reference numerals are used for functionally common parts in a plurality of drawings.

FIG. 1 shows a read-only optical disk (DVD-ROM) or a recordable / reproducible optical disk (DV-ROM).
1 shows the structure of a D-RAM, DVD-RW or DVD-R). The usable key display system of the present invention utilizes "user operation control information UOP" recorded on an optical disk 10 as shown in FIG. 1, for example.

As shown in FIG. 1, the optical disk 10
Is a pair of transparent substrates 1 each having a recording layer 17 provided thereon.
4 is bonded with an adhesive layer 20. Each substrate 14
Can be made of 0.6 mm thick polycarbonate, and the adhesive layer 20 can be made of an extremely thin (for example, 40 μm thick) ultraviolet curable resin. These pairs of 0.
By bonding the 6 mm substrate 14 such that the recording layer 17 is in contact with the surface of the adhesive layer 20, a large capacity optical disk 10 having a thickness of 1.2 mm is obtained.

The optical disc 10 is provided with a center hole 22. Around the center hole 22 on both sides of the disc, a clamp area 24 for clamping the optical disc 10 during rotation is provided. The spindle of the disk motor is inserted into the center hole 22 when the optical disk 10 is loaded in a disk drive device (not shown).
The optical disk 10 is clamped in the clamp area 24 by a disk clamper (not shown) while the disk is rotating.

The optical disk 10 has an information area 25 around the clamp area 24 where video data, audio data and other information can be recorded.

In the information area 25, a lead-out area 26 is provided on the outer peripheral side. Further, a lead-in area 27 is provided on the inner peripheral side in contact with the clamp area 24.
Is provided. A data recording area 28 is defined between the lead-out area 26 and the lead-in area 27.

The recording layer (light reflecting layer) 17 of the information area 25
, Recording tracks are formed continuously in a spiral shape, for example. The continuous track is divided into a plurality of physical sectors, and these sectors are assigned serial numbers. Various data are recorded on the optical disk 10 using this sector as a recording unit.

The data recording area 28 is an actual data recording area. As recording / reproducing information, video data (main video data) such as a movie, sub-video data such as subtitles and menus, and speech / sound effects and the like are recorded. Audio data is recorded as a similar pit row (a physical shape or phase state that causes an optical change to the laser reflected light).

The optical disk 10 has a single-sided, single-layer, double-sided R
In the case of an AM disk, each recording layer 17 can be composed of a triple layer in which a phase-change recording material layer (eg, Ge2Sb2Te5) is sandwiched between two zinc sulfide / silicon oxide mixtures (ZnS / SiO2).

The optical disk 10 has a single-sided, single-layer, single-sided R
In the case of an AM disk, the recording layer 17 on the read surface 19 side
Can be constituted by a triple layer including the phase change recording material layer. In this case, the layer 17 disposed on the opposite side as viewed from the reading surface 19 does not need to be an information recording layer, but may be a simple dummy layer.

The optical disk 10 has a single-sided reading type two-layer R
In the case of an AM / ROM disc, the two recording layers 17
One phase-change recording layer (the back side when viewed from the reading surface 19; for reading and writing) and one translucent metal reflective layer (the reading surface 19
(For playback only).

When the optical disk 10 is a write-once DVD-R, polycarbonate can be used as the substrate, gold can be used as the reflection film (not shown), and ultraviolet curable resin can be used as the protection film (not shown). In this case, an organic dye is used for the recording layer 17. As the organic dye, cyanine, squarylium, croconic, triphenylmenthane dye, xanthene, quinone dye (naphthoquin, anthraquinone, etc.), metal complex dye (phthalocyanine, vorphyrin, dithiol complex, etc.) and others can be used. is there.

Data writing to such a DVD-R disk is performed, for example, at a wavelength of 650 nm and an output of 6 to 12 m.
It can be performed using a semiconductor laser of about W.

The optical disk 10 has a single-sided reading type two-layer R
In the case of an OM disk, the two recording layers 17 can be constituted by one metal reflection layer (the back side when viewed from the reading surface 19) and one translucent metal reflection layer (the front side when viewed from the reading surface 19).

Read-only DVD-ROM disc 1
In the case of 0, a pit row is previously formed on the substrate 14 by a stamper, and a reflection layer of metal or the like is formed on the surface of the substrate 14 on which the pit row is formed, and this reflection layer is used as the recording layer 17. . In such a DVD-ROM disc 10, usually, no groove is provided as a recording track, and a pit array formed on the surface of the substrate 14 functions as a track.

In the above various optical disks 10, read-only ROM information is recorded on the recording layer 17 as an emboss signal. On the other hand, such an emboss signal is not formed on the substrate 14 having the recording layer 17 for reading and writing (or for writing once), but a continuous groove is formed instead. A phase change recording layer is provided in the groove. In the case of a read / write DVD-RAM disk, a phase change recording layer on a land portion in addition to the groove is also used for information recording.

When the optical disk 10 is a single-sided reading type (single or two recording layers), the substrate 14 on the back side as viewed from the reading surface 19 does not need to be transparent to the reading / writing laser. In this case, a label may be printed on the entire surface of the back substrate 14.

FIG. 2 shows the optical disk (DVD-RO) shown in FIG.
FIG. 3 is a diagram for explaining the correspondence between ten data recording areas 28 and recording tracks of data recorded therein.

When the disk 10 is a DVD-RAM (or D
In the case of VD-RW, the main body of the disk 10 is housed in the cartridge 11 to protect the delicate disk surface. When the DVD-RAM disk 10 together with the cartridge 11 is inserted into a disk drive of a DVD video recorder (not shown), the disk 10 is pulled out of the cartridge 11 and clamped on a turntable of a spindle motor (not shown) so as to face an optical head (not shown). And is rotationally driven.

On the other hand, if the disc 10 is a DVD-R or D
In the case of a VD-ROM, the main body of the disk 10 is not stored in the cartridge 11, and the naked disk 10 is directly set on the disk tray of the disk drive.

The recording layer 17 of the information area 25 shown in FIG.
, A data recording track is formed continuously in a spiral shape. The continuous track is divided into a plurality of logical sectors (minimum recording units) having a fixed storage capacity as shown in FIG. 2, and data is recorded based on the logical sectors. The recording capacity of one logical sector is determined to be 2048 bytes (or 2 kbytes), which is the same as the one-pack data length described later.

The data recording area 28 is an actual data recording area in which management data, main video (video) data, sub-video data, and audio (audio) data are similarly recorded.

Note that a DVD-RAM or DVD-RW
In this case, although not shown, the data recording area 28 of the disk 10 in FIG. 2 can be divided into a plurality of recording areas (a plurality of recording zones) in a ring shape (annular ring shape). Although the angular velocity of the disk rotation differs for each recording zone, the linear velocity or the angular velocity can be kept constant in each zone. In this case, a spare recording area (free space) can be provided for each zone. The free space for each zone can be collected and used as a reserved area of the disk 10.

FIG. 3 shows the optical disk (D) shown in FIG. 1 or FIG.
FIG. 3 is a diagram for explaining a logical structure of information recorded in a VD-ROM (10). The data recording area 28 formed on the optical disk 10 of FIG. 2 has a volume and file structure as shown in FIG. The logical format of this structure is, for example, one of the standards ISO 9660.
And the Universal Disk Format (UDF) bridge.

The data recording area 28 between the lead-in area 27 and the lead-out area 26 is allocated as a volume space, and this volume space is a space for an application of a specific standard (here, DVD standard) and this specific space. It can include space for non-standard applications.

The volume space of the data recording area 28 is
It is physically divided into a number of sectors, and these physical sectors are numbered sequentially. The logical address of data recorded in this volume space (data recording area 28) is a logical sector number (Logical Sector Number; as defined by ISO9660 and UDF bridge).
LSN). The logical sector size here is 2048 bytes (or 2 bytes) in the same manner as the physical sector size.
k bytes). The logical sector number (LSN) is
Serial numbers are added in ascending order of physical sector numbers.

As shown in FIG. 3, the volume space of the data recording area 28 has a hierarchical structure, and includes a volume and file structure area 70, a DVD video area 71 including one or more video title sets VTS 72, and other areas. A recording area 73 is included. These areas are partitioned on the boundaries of logical sectors. Here, one logical sector is defined as 2048 bytes, and one logical block is 204 bytes.
Defined as 8 bytes. Therefore, one logical sector is one logical sector.
It is defined as being equivalent to a logical block.

The file structure area 70 has the ISO 9660
And a management area defined in the UDF bridge. Based on the description of the area 70, the contents of the video manager VMG are stored in the memory of the DVD player (FIG. 76) described later.

The video manager VMG is composed of a plurality of files 74A. These files include information for managing video title sets (VTS # 1 to #n) 72 (video manager information VMGI, video manager menu video, which will be described later). Object set VMGM_
VOBS, video manager information backup file VMGI_BUP).

Each video title set VTS 72 includes:
Video data (video pack described later) compressed according to a predetermined standard such as MPEG, audio data compressed or uncompressed according to a predetermined standard (audio pack described later), and run-length compressed sub-picture data (sub-picture described later) Pack; includes bitmap data in which one pixel is defined by a plurality of bits) and information for reproducing the data (navigation pack described later; reproduction control information / presentation control information PC)
I and data search information DSI).

This video title set (VTS) 72
Similarly, the video manager VMG includes a plurality of files 74B. Each file 74B includes video title set information (VTSI), a video title set menu object set (VTSM_VOB).
S), video object set for video title set title (VTSTT_VOBS; maximum 9 files), backup of video title set information (VT)
SI_BUP).

Here, the video title set (VTS
# 1 to #n) The number of 72 is limited to a maximum of 99, and
It is assumed that the number of files 74B constituting each video title set (VTS) 72 is set to a maximum of 12.
These files 74A and 74B are similarly partitioned at logical sector boundaries.

In the other recording area 73, information usable in the above-described video title set (VTS) 72 or other information unrelated to the video title set can be recorded. The other recording area 73 is not essential, and may be deleted if not used.

Each video title set (VTS) in FIG.
Reference numeral 72 denotes a plurality of video object sets (VTSTT
_VOBS). As will be described later, the video object set (VOBS) in the video title set (VTS) 72 includes a video object set for video title set menu (VTSM_VOBS),
And a video object set (VTSTT_VOBS) for the titles of one or more video title sets
All the video object sets have the same structure except for their uses.

The video object set (VTSTT_
A VOBS is one or more video object units (V
OBU), and each video object unit (VOBU) is composed of one or more cells. Then, one or more program chains (PGC) are recorded by a video object set (VTSTT_VOBS) which is a set in units of cells. Each story making up the multi-story can be configured with this PGC as a unit.

FIG. 4 illustrates a directory structure of information (data file) recorded on the optical disk 10. When the hierarchical structure shown in FIG. 3 is adopted, a subdirectory of the video title set VTS and a subdirectory of the audio title set ATS are located under the root directory, similarly to the hierarchical file structure employed by the general-purpose operating system of the computer. It is connected. Then, various video files (VMGI, VMG) are stored in the subdirectory of the video title set VTS.
M, VTSI, VTSM, VTS, etc.) are arranged, and each file is managed in an orderly manner. A specific file (for example, a specific VTS) can be accessed by specifying a path from the root directory to the file.

A DVD-RA as shown in FIG. 1 or FIG.
The M (DVD-RW) disc 10 or the DVD-R disc 10 is preformatted so as to have the directory structure shown in FIG. 4, and the preformatted disc 10 is an unused disc (raw disc) for DVD video recording. Can be marketed as

For example, the root directory of the preformatted raw disc 10 can include a subdirectory called a video title set or audio / video data. This subdirectory can further include a menu data file (VMGM, VTSM, etc.) for storing predetermined menu information.

FIG. 5 shows the contents of a directory record corresponding to the directory structure of FIG. The contents are as follows.

The relative byte position “0” describes the directory record length.

In the relative byte position “1”, the allocated extended attribute record length is described.

The relative byte position “2” describes the number of the first logical sector assigned to the extension.

At the relative byte position “10”, the data length of the file portion is described.

In the relative byte position “18”, the date and time when the information in the extension described in the directory record is recorded. The data at the relative byte position “18” can be used for recording the recording date and time of a recorded program (corresponding to a specific VTS or specific audio / video data) in the DVD video recorder.

In the relative byte position “25”, the ISO 96
File flags indicating the characteristics of the files defined in Table 10 of Table 60 are described.

The relative byte position “26” describes the file unit size assigned to the file portion.

The relative byte position “27” describes the size of the interleave gap allocated to the file part.

The relative byte position “28” describes the volume serial number in the extended volume set described in the directory record.

The relative byte position “32” describes the length of the file ID field of the directory record.

At the eleventh relative byte position "33",
A file ID or a directory defined by ISO9660 is described.

Following the file ID, the file ID
A padding field used as padding when the field length is an even number of bytes is described.

After the padding field, management information used by the system is described.

FIG. 6 shows that the optical disk 10 is a DVD video R
OM, the video manager VM of FIG.
FIG. 3 is a diagram illustrating the structure of G. This video manager VMG is composed of a plurality of files 74A, and includes three items as shown in FIG. 6 corresponding to each file.

That is, the video manager VMG includes a video manager information (VMGI) 75 and a video manager menu object set (VMGM_V).
OBS) 76 and a backup (VMGI_BUP) 77 of the video manager information.

Here, the video manager information (VMG
I) 75 and backup (VMGI_BUP) 77 of video manager information are required items, and a video object set (VMGM_VOBS) 76 for displaying a video manager information menu (VMGM) 76
Can be optional.

The video object set (VMGM_VOBS) 76 for the video manager information menu includes:
Menu information (managed by the video manager VMG) on video data, audio data, and sub-picture data recorded on the optical disc 10 is stored.

The video manager information menu video object set (VMGM_VOBS) 76 allows the volume name of the optical disk to be reproduced,
A description of the audio and the sub-picture accompanying the volume name display can be displayed, and selectable items can be displayed in the sub-picture.

For example, a video object set for a video manager information menu (VMGM_VOBS)
76 allows the user to indicate that the optical disc to be played includes a video (in the form of a single story or a multi-story) containing the matches of the game leading up to the boxer X world champion.
That is, Boxer X's fighting pose is reproduced in video data along with the volume name, such as the glorious history of Boxer X, and his theme song (if any)
Audio is output, and a chronology of his career and battle history is displayed as a sub-picture.

[0091] The selection items displayed by the VMGM video object set (VMGM_VOBS) 76 include game narration in English, Japanese, French,
A query as to which language, such as German, is to be played, as well as whether to display subtitles in a predetermined language in the sub-picture, or an inquiry as to which one of the selectable multi-language subtitles to select, for example, in a menu format, Is output. This VMGM video object set (VMGM_VO)
From the display by BS) 76, the viewer can select, for example, English for audio and Japanese for sub-picture subtitles. Thus, the user is ready to watch the video of the game of Boxer X.

As shown in FIG. 6, the video manager VM
The video manager information (VMG
I) 75 includes a video manager information management table (VMGI_MAT; required) 751, a title search pointer table (TT_SRPT; required) 752, and a program chain information unit table (VMGM_PGCI_UT; VMGM_V) of the video manager menu.
753, parental management information table (PTL_MAIT; optional) 753
4. Video title set attribute table (VTS_AT
RT; required) 755, text data manager (TX
TDT_MG; option) 756, video manager menu cell address table (VMGM_C_AD)
T; mandatory if VMGM_VOBS is present) 75
7 and the video manager menu video object unit address map (VMGM_VOBU_AD)
MAP; mandatory when VMGM_VOBS exists) 7
58 are described in this order.

The table maps and the like (751 to 758) in the video manager information 75 include information used when reproducing each video title set (VTS) 72 in FIG. It is recorded on the optical disc 10 so as to coincide with the boundary.

In FIG. 6, the video manager information management table (VMGI_MAT) 751 which is treated as essential includes:
The size of the video manager VMG, the start address of each information in the video manager VMG, and a video object set (VM
GM_VOBS) 76 is described.

The title search pointer table (TT_SRPT) 752, which is essential, has an entry program chain (EPGC) of a video title contained in a volume on the optical disc 10 which can be selected according to the title number input by the user. Is described.

FIG. 7 is a view for explaining the contents of the video manager information management table VMGI_MAT of FIG.

The video manager information management table (VMGI_MAT) 751 of FIG. 7 includes a video manager identifier (VMG_ID); an end address of the video manager (VMG_EA); an end address of the video manager information (VMGI_EA);
D) Version number (VER) of the standard adopted by 10
N); Video manager category (VMG_CA)
T); volume setting identifier (VLMS_ID); number of video title sets (VTS_Ns); identifier of provider (producer / distributor of software recorded on the disc) (PVR_ID); end address of video manager information management table (VMGI_MAT_EA) Start address of first play program chain information (FP_PGCI_SA); start address of video object set in video manager menu (VMGM_VOBS_SA); start address of title search pointer table (TT_SRPT_S)
A): Start address (VMGM) of the unit table of the program chain information in the video manager menu
Start address of parental management information table (PTL_MAIT_SA); start address of video title set attribute table (VTS_ATRT_SA); start address of text data manager (TXTDT_MG_SA); start address of video manager menu cell address table (VMGM_C_ADT_SA); Start address (VMGM_VOBU_AD) of video manager menu video object unit address map
MAP_SA); Video attributes shown in the video manager menu (VMGM_V_ART); Number of audio streams shown in the video manager menu (VMG
M_AST_Ns); audio stream attributes (VMGM_AST_A) shown in the video manager menu
TR); number of sub-picture streams shown in the video manager menu (VMGM_SPST_Ns); sub-picture stream attribute (VM
GM_SPST_ATR); and first play program chain information (FP_PGCI).

Note that the video manager category (VMG_CAT) in the video manager information management table (VMGI_MAT) 751 describes a video copy flag and an audio copy flag of the video manager and the video title set. Depending on the contents of these flags, whether video and audio can be copied is individually determined.

Video manager information management table (VM
GI_MAT) 751 end address (VMGI_MA)
T_EA) and title search pointer (TT_SRP)
T) 752 start address (TT_SRPT_S
Addresses such as A) are stored in this table (VMGI_MA).
T) 751 is described in the number of logical blocks relative to the first logical block in which the data is stored.

Here, the description returns to FIG. Video title set attribute table (V
The TS_ATRT 755 includes a video title set attribute information table (VTS_ATRTI), a video title set attribute search pointer (VTS_ATR_SRP) for each video title set, and a video title set attribute (VTS_AT) for each video title set.
R).

In the video title set attribute information table (VTS_ATRTI), the number of video title sets (VTS) 72 (up to 99 titles), the end address of the video title set attribute table, and the like are described.

In the video title set attribute search pointer (VTS_ATR_SRP), the start address of the video title set attribute (VTS_ATR) and the like are described.

The video title set attribute (VTS_
ATR) includes a video title set attribute (VTS_A).
TR) end address, video title set category, video title set attribute information, and the like.

The video title set attribute information includes the video data compression method and other video attributes; the presence / absence of compression, the compression method, the number of channels, and other audio stream attributes; the display format of subtitles or menus using sub-pictures, etc. The attribute of the sub-picture is described.

FIG. 8 is a view for explaining the contents of the title search pointer table TT_SRPT of FIG. Title search pointer table (TT_SRPT) 75
2, the title search pointer table information (TT_SRPTI) 752A is described first, and then the title search pointers (TT_SRP) 752B of numbers # 1 to #n (n ≦ 99) are consecutively provided for the number of titles in the volume. Is described. If only one video title set (VTS) 72 is stored in this volume, the table (TT_SRP
T) 752, one title search pointer (TT)
_SRP # 1) Only 752B1 is described.

FIG. 9 is a view for explaining the contents of the title search pointer table information TT_SRPTI of FIG. Title search pointer table information (TT_S
RPTI) 752A has a title search pointer 75
2B (TT_Ns) and the end address (TT_SRPT_EA) of the title search pointer table (TT_SRPT) 752 are described. The address (TT_SRPT_EA) is described by the relative number of bytes from the first byte of the title search pointer table (TT_SRPT) 752.

FIG. 10 is a view for explaining the contents of the title search pointer TT_SRP for each title #n shown in FIG. Each title search pointer (TT_SR
P) 752B includes the title playback type (TT_PB
_TY), the number of angles (AGL_Ns), the number of part-of-titles (PTT_Ns), and the parental identifier field (TT_PTL_ID_FL) of the title.
D), the video title set number (VTSN), and the number of titles of the video title set (VTS_TTN)
And the start address of the video title set (VTS
_SA).

The title search pointer TT_SRP
Include the number of angles (AGL_Ns) in the angle block (# 1 to #
9) is described. Number of Part of Titles (PTT_N
In s), the number (for example, a chapter number) of a partial title (for example, a title divided into a plurality of chapters) in the title is described. In the parental identifier field (TT_PTL_ID_FLD) of the title,
The parental ID field of the title is described. Based on the description content of the parental ID field, the reproduction of a predetermined portion (one or a plurality of portions) of the title can be restricted at a predetermined prohibition level.

In the video title set number (VTSN), video title set numbers (# 1 to # 99) indicating the video title set including the title are described. Number of titles in video title set (VTS_T
In TN), the title number of the video title set is described. This number of titles (VTS_TTN) is used to access the corresponding title unit (TTU) in the part-of-title search pointer table (VTS_PTT_SRPT) of the video title set indicated by the video title set number (VTSN). Video title set start address (VTS_SA)
Describes the start address of the video title set (VTS) indicated by the video title set number (VTSN).

The title search pointer (TT_
The content of the (SRP) 752B specifies the video title set (VTS) 72 to be reproduced and the storage position of the video title set (VTS) 72 on the optical disk 10. At this time, the start address (VTS_SA) of the video title set (VTS) 72 is the video title set number (VT).
SN) is described by the number of logical blocks for the title set specified by (SN).

FIG. 11 is a view for explaining the contents of the title reproduction type TT_PB_TY shown in FIG. The playback type (TT_PB_T) of a 1-byte (8-bit) title included in the title search pointer TT_SRP
Y) includes a reserved bit b7, a title type flag (TT_TY) b6, and four title playback type flags (TT_PB_TY1 to TT_PB_TY4) b5.
b2 and two user operation prohibition flags (UOP1; UO
P0) b1 to b0 are described. The title reproduction type flags (TT_PB_TY1 to TT_PB_TY4)
Indicates whether there is a command such as link / jump / call.

When the title type flag (TT_TY) is 0
b (binary 0) indicates that the corresponding title is the title of one sequential program chain, and if the flag (TT_TY) is 1b, the corresponding title is the title of one random program chain or the title of a multi-program chain. Is shown.

Further, each reproduction type flag bit (TT_
PB_TY1 to TT_PB_TY4) indicates that when the bit content is 0b, there is no command such as link / jump / call in the cell command or button command, and when the bit content is 1b, it is linked to the cell command or button command. It indicates that a command such as / jump / call exists.

Each user operation prohibition flag bit (U
OP1; UOP0), when the bit content is 0b, indicates that the corresponding user operation (playback / search for part of title; time playback / time search in title) is permitted, and the bit content is 1b indicates that the corresponding user operation is prohibited.

FIG. 12 shows the video manager VMG of FIG.
12 shows a hierarchical path from the title reproduction type TT_PB_TY of FIG.

Each user operation prohibition flag bit (UOP
1; UOP0) is described in the title playback type (TT
_PB_TY) is embedded in a lower layer of the video manager VMG in FIG.

That is, as shown in FIG. 12, video manager information VMG included in video manager VMG
I is the title search pointer table TT_SRPT
(FIG. 6), and the title search pointer table TT_SRPT includes the title search pointer TT_SRP
(FIG. 8) and the title search pointer TT_S
RP is title playback type TT_PB_TY (FIG. 10)
including. Thus, VMG / VMGI / TT_SRPT
By following a hierarchical path such as / TT_SRP / TT_PB_TY, the user operation prohibition flag bit (UOP1; UOP0) can be obtained.

FIG. 13 shows a hierarchical structure of information included in the video object set VTSTT_VOBS of FIG. 3 when the optical disk 10 is a DVD video ROM.

As shown in FIG. 13, each cell 84 is composed of one or more video object units (VOBU) 85. And each video object unit 8
5 is configured as an aggregate (pack sequence) of a video pack (V pack) 88, a sub-picture pack (SP pack) 90, and an audio pack (A pack) 91, starting with a navigation pack (NV pack) 86. ing.
That is, the video object unit VOBU85
Is defined as a set of all packs recorded from one navigation pack 86 to immediately before the next navigation pack 86.

These packs are the minimum units when performing data transfer processing. The minimum unit for performing logical processing is a cell unit, and the logical processing is performed for this cell unit.

The navigation pack 86 is incorporated in the video object unit VOBU 85 so that any angle change (non-seamless reproduction and seamless reproduction) can be realized.

The video object unit VOBU
The playback time of video object unit VOB is 85
This corresponds to the playback time of video data composed of one or more video groups (group of pictures; GOP for short) included in U85, and the playback time is 0.4 seconds to 1.
It is set within the range of 2 seconds. One GOP is usually about 0.5 seconds in the MPEG standard, and is screen data compressed so as to reproduce about 15 frame images during that time.

Video object unit VOBU85
Contains video data, a GOP (conforming to the MPEG standard) composed of a video pack 88, a sub-picture pack 90 and an audio pack 91 is arranged to form a video data stream. However, irrespective of the number of GOPs, the video object unit VOBU85 is determined based on the playback time of the GOP, and the beginning of the video object unit VOBU85 is always the navigation pack 8 as shown in FIG.
6 are arranged.

It should be noted that even in the case of reproduction data of only audio and / or sub-picture data, the reproduction data is constituted with the video object unit VOBU85 as one unit. For example, when the video object unit VOBU85 is composed of only the audio pack 91 with the navigation pack 86 at the head, as in the case of the video object VOB83 of the video data, the video object unit VOB to which the audio data belongs
The audio pack 91 to be reproduced within the reproduction time of the OBU 85 is the video object unit VOBU.
85.

The optical disk 10 is a DVD-RA
M or DVD-RW, a video title set V including a VOBS 82 having a structure as shown in FIG.
After recording the TS, there is a case where it is desired to edit the recorded contents.
To respond to this request, a dummy pack 89 can be inserted into each VOBU 85 as appropriate. The dummy pack 89 can be used when recording editing data later. In the case of a DVD-RAM or DVD-RW, the navigation pack 86 in FIG. 13 is omitted.

As shown in FIG. 13, a video object set (VTSTT_VOBS) 82 is defined as a set of one or more video objects (VOB) 83. The video objects VOB 83 in the video object set VOBS 82 are used for the same purpose.

The menu VOBS 82 is usually composed of one VOB 83, which stores a plurality of menu screen display data. On the other hand, the VOBS 82 for the title set is usually composed of a plurality of VOBs 83.

Here, VOBs constituting title set video object set VTSTT_VOBS 82
83 can be considered to correspond to video data of performances of a certain rock band, taking a concert video of the band as an example. In this case, by designating the VOB 83, for example, the third piece of the concert performance music of the band can be reproduced.

The VOB 83 forming the menu video object set VTSM_VOBS stores menu data of all the concert performances of the band, and according to the display of the menu, a specific music,
For example, an encore performance song can be reproduced.

In a normal video program, one VOBS 82 can be constituted by one VOB 83. In this case, one video stream is one VO
It will be completed in B83.

On the other hand, for example, in an animation collection of a plurality of stories or a movie in an omnibus format, one VO
A plurality of video streams (a plurality of program chains PGC) can be provided in the BS 82 corresponding to each story. In this case, each video stream is stored in the corresponding VOB 83. At that time, the audio stream and the sub-picture stream related to each video stream are also completed in each VOB 83.

The VOB 83 has an identification number (IDN # i;
i = 0 to i), and the VO
B83 can be specified. The VOB 83 includes one or a plurality of cells 84. Although a normal video stream is composed of a plurality of cells, a video stream for a menu may be composed of one cell 84 in some cases.
Each cell 84 is given an identification number (C_IDN # j) as in the case of the VOB 83.

FIG. 14 shows an example of the contents of the lowermost pack of the hierarchical structure shown in FIG. Here, a data sequence in pack format (pack sequence) obtained after being read from the optical disk 10 and subjected to signal demodulation / error correction in a disk drive (not shown) is illustrated. This pack sequence is composed of a navigation pack (omitted for DVD-RAM or DVD-RW) 86, video pack 88, dummy pack 89, sub-picture pack 90 and audio pack 91. These packs are all
As in the case of the logical sector, the data is composed of data in units of 2 kbytes.

The navigation pack 86 includes a pack header 110, a reproduction control information / presentation control information (PCI) packet 116, and data search information (DS).
I) The packet 117 is included. PCI packet 11
6 is composed of a packet header 112 and PCI data 113, and the DSI packet 117 is a packet header 11
4 and DSI data 115. PCI
The packet 116 contains control data used for non-seamless angle switching, and the DSI packet 117 contains control data used for seamless angle switching.

Here, the angle switching means changing the angle (camera angle) at which a subject image is viewed. In the example of a rock concert video, in the same music performance scene (same event), a scene captured mainly by a vocalist, a scene captured mainly by a guitarist,
This means that you can see scenes from various angles, such as scenes captured mainly by drummers.

[0136] Angle switching (or angle changing) is performed when the angle can be selected according to the viewer's preference or when the same scene is automatically changed in the flow of the story while changing the angle. (If the software creator / provider configured the story in that way; or if the user of the DVD video recorder described below made such editing).

When selecting an angle,
There are the following: That is, in the case of non-seamless playback in which the angle changes back to the beginning of the same scene and discontinuous in time (for example, the scene at the moment when the boxer puts the counter punch, the camera angle changes to another angle and the counter starts to be launched again. In the case of seamless playback in which the angle changes in the scene that follows the scene and the scene that follows the scene (for example, when the boxer enters the counter and the punch enters, the camera angle changes to another angle and the counter is eaten) When the opponent's flying scene is played continuously in time)
There is.

The video pack 88 has a pack header 881.
And a video packet 882. The dummy pack 89 includes a pack header 891 and a padding packet 890, and the padding packet 890 includes a packet header 892 and padding data 893. However, the padding data 893 contains invalid data.

The sub-picture pack 90 includes a pack header 901
And a sub-picture packet 902. The audio pack 91 includes a pack header 911 and an audio packet 912.

The video packet 882 in FIG. 14 includes a packet header (not shown), and a decode time stamp (DST) and a presentation time stamp (PTS) are recorded in the packet header.
Each of the sub-picture packet 902 and the audio packet 912 includes a packet header (not shown), and a presentation time stamp (PTS) is recorded in the packet header.

FIG. 15 shows the structure of one navigation pack shown in FIG. That is, one pack of the navigation pack 86 is composed of the 14-byte pack header 11.
It is composed of 2010 bytes of navigation data including a system header 111 of 0 and 24 bytes and two packets (116 and 117). The two packets constituting the navigation data are playback control information (P
CI) packet 116 and data search information (DS)
I) The packet 117.

The PCI packet 116 is composed of a 6-byte packet header 112A, a 1-byte sub-stream identifier (sub-stream ID) 112B, and 979-byte PCI data 113. Substream I
The data stream of the PCI data 113 is specified by the 8-bit code “00000000” of D112B.

The DSI packet 117 includes a 6-byte packet header 114A, a 1-byte sub-stream identifier (sub-stream ID) 114B,
It is composed of 7 bytes of DSI data 115. The 8-bit code “00000000” of the substream ID 114B
The data stream of the DSI data 115 is designated by “1”.

The data length of one pack of the navigation pack 86 thus configured is the same as the logical sector 1 in FIG.
2048 bytes (2 kbytes) corresponding to one.

The pack header 110 and the system header 111 in FIG. 15 are defined by the MPEG2 system layer. That is, pack start code, system clock reference (SCR) and multiplexing rate information are stored in the pack header 110.
1 describes a bit rate and a stream ID.
Similarly, the packet header 112 of the PCI packet 116
Packet header 114 of A and DSI packet 117
A stores a packet start code, a packet length, and a stream ID as defined in the MPEG2 system layer.

FIG. 16 shows the structure of one dummy pack shown in FIG. That is, one dummy pack 8
9 is composed of a pack header 891, a packet header 892 having a predetermined stream ID, and padding data 893 embedded with a predetermined code. (The packet header 892 and the padding data 893 constitute a padding packet 890.) The contents of the padding data 893 of the unused dummy pack have no particular meaning.

[0147] This dummy pack 89 is
Is a DVD-RAM or DVD-RW, and after a predetermined recording is made on the disk 10, it can be used as appropriate when editing the recorded contents.

For example, consider a case where a videotape recording a family trip with a portable video camera is recorded on a DVD-RAM disk 10 and edited.

In this case, first, only the video scenes to be collected on one disc are selectively recorded on the disc 10. This video scene is recorded in the video pack 88 of FIG. Audio recorded simultaneously by the video camera is recorded in the audio pack 91.

DVD video RO having the data structure of FIG.
In the case of M, the VOBU 85 including the video pack 88 etc.
It always has a navigation pack 86 at the head (in the case of DVD-RAM or DVD-RW, it does not have a navigation pack). As shown in FIG. 14, this navigation pack 86 includes playback control information PCI and data search information DSI. Using this PCI or DSI, the playback procedure of each VOBU can be controlled (for example, intermittent scenes can be automatically connected or multi-angle scenes can be recorded).

After editing and recording from a video tape to the disk 10, when dubbing voices and sound effects in VOBU units or adding background music BGM to each scene, the dubbing sound or BGM is added.
Can be recorded in the dummy pack 89. In addition, when a commentary on the recorded content is added, additional images such as additional characters and graphics can be recorded in the dummy pack 89. If an additional video image is to be inserted, the inserted video can be recorded in the dummy pack 89.

The above-mentioned post-recording sound and the like are written in the padding data 893 of the dummy pack 89 used as an audio pack. In addition, the above additional commentary
This is written into the padding data 893 of the dummy pack 89 used as a sub-picture pack. Similarly, the insert video is written in the padding data 893 of the dummy pack 89 used as a video pack.

That is, the dummy pack 89 is a pack such as a wild card that can be an audio pack, a sub-picture pack, or a video pack depending on the purpose of use.

FIG. 17 shows a PCI packet 116 included in the navigation pack 86 arranged at the head of each VOBU 85. As shown in the figure, the PCI packet 116 is playback control information PCI which is navigation data for changing display contents or playback contents (presentation contents) in synchronization with the playback state of the video data in the video object unit (VOBU) 85. (PC
I data) 113.

FIG. 18 shows the reproduction control information (PCI
Data) 113. The PCI data 113 is
60-byte PCI general information (PCI_GI) and 36
Byte non-seamless playback angle information (NSML
_AGLI) and 694 bytes of highlight information (HL
I) and 189 bytes of recording information (RECI). This recording information (RECI) can include an international standard copyright management code (ISRC).

The highlight information HLI can be used when performing the following highlight processing. That is,
The microprocessing unit MPU of the DVD player (FIG. 76) described later reads the highlight information HLI and determines the X / Y coordinate value, color, contrast value, etc. of the rectangular area (highlight button) displayed by the sub-picture. Detect. According to the detection information, the DVD player M
The PU performs a highlight process on the display of the menu selection item, for example.

This highlighting process is used as means for allowing the user to easily recognize the displayed specific item in the visual user interface. Specifically, a DVD recorded on the optical disc 10
If the video title is a multilingual program, a specific audio language (for example, English) and a subtitle language (for example, Japanese) for a specific language will be highlighted using a highlight button that is displayed visually. Selected. Such a user selection operation can be executed by a remote controller (FIGS. 77 to 80) described later.

FIG. 19 shows the contents of the reproduction control information general information PCI_GI of FIG. The playback control information general information PCI_GI includes a logical block number (NV_PCK_LBN) of a navigation pack and a category (VOBU_CA) of a video object unit (VOBU).
T), user operation control (VOBU_UOP_CTL) of the video object unit (VOBU), and display start time (V) of the video object unit (VOBU).
OBU_S_PTM) and the display end time (VOBU_E_PTM) of the video object unit (VOBU)
And the display end time (VOBU_SE_PTM) at the end of the sequence in the video object unit (VOBU)
And a cell elapsed time (C_ELTM).

Here, the logical block number (NV_P
The CK_LBN) indicates the address (recording position) of the navigation pack including the playback control information (PCI) by the video object set (VOB) including the PCI.
This is represented by the number of relative blocks from the first logical block in S).

The above category (VOBU_CAT) is
It describes the content of copy protection of an analog signal corresponding to video and sub-picture in a video object unit (VOBU) including playback control information (PCI).

The user operation control (VOBU_UOP_
CTL) describes user operations that are prohibited during the display (presentation) period of the video object unit (VOBU) including the playback control information (PCI).

The display start time (VOBU_S_PT)
M) describes the display (presentation) start time of the video object unit (VOBU) including the playback control information (PCI). More specifically, the VOBU_S_PTM indicates the display start time of the first video (first picture) in the display order of the first GOP in the video object unit (VOBU).

The display end time (VOBU_E_PT)
M) describes the display (presentation) end time of the video object unit (VOBU) including the playback control information (PCI). More specifically, when video data in the video object unit (VOBU) is continuous, the VOBU_E_
The PTM indicates the display end time of the last video (last picture) in the display order of the last GOP in the video object unit (VOBU).

On the other hand, the video object unit (VO
When there is no video data in the BU) or when the reproduction of the video object unit (VOBU) is stopped, the VOBU_E_PTM is aligned with the time grid of the field interval (1/60 second for NTSC video). It indicates the end time of virtual video data.

The display end time (VOBU_SE_PT)
M) describes the display (presentation) end time by the sequence end code of the video data in the video object unit (VOBU) including the playback control information (PCI). More specifically, it indicates the display end time of the last video (last picture) in the display order, including the sequence end code in the video object unit (VOBU).
If there is no video (picture) with a sequence end code in the video object unit (VOBU), 0000000h is stored in VOBU_SE_PTM.
(H means hexadecimal).

The cell elapsed time (C_ELTM) is calculated from the first video frame in the display order of cells including the playback control information (PCI) to the first video in the display order of the video object unit (VOBU) including the PCI. The relative display (presentation) time up to the frame is described in hours, minutes, seconds and frames in the BCD format. When there is no video data in the video object unit (VOBU),
The first video frame of the virtual video data is
Used as the video frame.

FIG. 20 shows a user operation control VOBU_UOP_CT of the video object unit shown in FIG.
FIG. 6 is a diagram for explaining the contents of L.

This user operation control VOBU_UOP_C
The TL is composed of 4 bytes (32 bits), and the VOB being reproduced is determined by user operation prohibition flags UOP3 to UOP16 and UOP18 to UOP24 contained therein.
U is determined whether or not a specific operation can be performed (see FIG. 7 for details).
5 will be described later).

That is, similarly to UOP0 and UOP1 in FIG. 11 described above, the user operation inhibition flag bits (UOP3 to UOP16; UOP18 to UOP24) permit the corresponding user operation when the bit content is 0b. When the bit content is 1b, it indicates that the corresponding user operation is prohibited.

FIG. 21 shows the video title set V of FIG.
From TS, user operation control VOBU_UOP_C of FIG. 20
The hierarchical path to the TL is shown.

User operation prohibition flag bits in video object unit VOBU (UOP3 to UOP16;
The user operation control VOBU_UOP_CTL in which UOP18 to UOP24) are described is embedded in the lower layer of the video title set VTS in FIG. That is,
As shown in FIG. 21, the video object set VOBS included in the video title set VTS includes a navigation pack NV_PCK (FIG. 15), the navigation pack NV_PCK includes reproduction control information PCI (FIG. 17), and the reproduction control information PCI. Contains PCI general information PCI_GI (FIG. 18), and this PCI general information PCI_GI is used for user operation control VOBU_UOP_CT.
L (FIG. 19). Thus, VTS / VOBS / N
V_PCK / PCI / PCI_GI / VOBU_UOP
_CTL, the user operation prohibition flag bits (UOP3 to UOP16; U
OP18 to UOP24).

FIG. 22 is a diagram for explaining a configuration of a program chain PGC formed by a set of a plurality of programs including a large number of cells of FIG. 3 or FIG.

The program chain (PGC) in FIG.
As shown in FIG. 22, it is composed of a set of programs 89 for reproducing the story of a certain title.

In the title configuration illustrated in FIG.
One program 89 is formed by a set of cell IDs (# 1 to #n) 84, and one program chain 87 is formed by a set of programs (# 1 to #m) 89. ) 87 form one title.

FIG. 22 including the entry program chain
Multiple program chains (# 1 to #k) as shown in
By continuously playing 87, a movie of a certain title is completed. The viewer (the user of the playback device / DVD player) reads the program 89 in the program chain 87.
Is specified, a specific scene of the movie (program 8
9) can be watched.

When the configuration shown in FIG. 22 (the configuration of the software produced by the provider) corresponds to the configuration shown in FIG. 3 (the configuration of the data recorded on the optical disk), the program chain (PGC) is added to the video object set (VOBS). Yes, programs correspond to video objects (VOBs), but they are not equal.

FIG. 23 is a diagram for explaining a recording arrangement of cells in which cells of a program chain are arranged in a continuous order. For example, consider a case where a single story is composed of two program chains PGC # 1 and PGC # 2. In this case, cells # 1 to #f of PGC # 1 constituting the first half of the single story are sequentially arranged in video object VOB_IDN # 1, and cells # 1 to #g of PGC # 2 constituting the latter half thereof are sequentially arranged. It is arranged in video object VOB_IDN # 2.

FIG. 24 is a diagram for explaining a recording arrangement of cells in which cells of a program chain are arranged in a non-consecutive order. For example, consider a case in which a multi-story, which is each of two program chains PGC # 1 and PGC # 2, is configured. In this case, cells # 1 to #p of PGC # 1 that constitute one story of the multi story include a plurality of video objects VOB_IDN # 1, # 3,
.. #I are arranged in non-consecutive order, while cells # 1 to #q of PGC # 2 constituting the story are arranged in non-consecutive order in a plurality of video objects VOB_IDN # 2,.

There are four types of program chains PGC: a first play PGC (FP_PGC), a video manager menu PGC (VMGM_PGC), a video title set menu PGC (VTSM_PGC), and a title PGC (TT_PGC). These program chains PGC are usually composed of program chain information PGCI and one or more video objects VOB (each containing one or more cells).
There may be PGCs without PGCI alone. The PGC of only the PGCI is used when determining the reproduction condition and transferring the reproduction to another PGC.

The number of program chain information PGCI is
PGCI search pointers are assigned from 1 in the order described. The number of program chains PGC is equal to the number of PGCIs. Even when the PGC has a block structure, the number of program chains PGCN in the block matches the number of consecutive PGCI search pointers.

FIG. 25 shows the program chain P in FIG.
It is a figure explaining the structure of program chain information PGCI in GC. That is, the program chain information PGCI is the program chain general information (PGC_G
I; required), program chain command table (P
GC_CMDT; option), program chain program map (PGC_PGMAP; next C_PBI)
T is required when T exists), the cell reproduction information table (C
_PBIT; optional), and a cell position information table (C_POSIT; indispensable when the C_PBIT exists).

FIG. 26 shows cell playback information table C_PBI included in program chain information PGCI of FIG.
FIG. 4 is a diagram for explaining the contents of T. That is, the cell reproduction information table C_PBIT has a configuration as shown in FIG. 26, and has a maximum of 255 pieces of cell reproduction information (C_PBIn; #n).
= # 1 to # 255).

Each of the video title sets (V
The program chain information (VTS_PGCI) of each of the TS # 1, VTS # 2,...) 72 is included in the video title set information VTSI 94, which will be described later.

FIG. 27 is a view for explaining the contents of each cell reproduction information C_PBI included in the cell reproduction information table C_PBIT of FIG. These cell reproduction information (C_P
BI # 1 to #n) each include a cell category (C_CAT; 4 bytes) and a cell playback time (C
_PBTM; 4 bytes), the start address (C_C) of the first video object unit (VOBU) in the cell
FVOBU_SA; 4 bytes), the end address (C) of the first interleaved unit (ILVU) in the cell
_FILVU_EA; 4 bytes), the start address (C_LVOBU_SA; 4 bytes) of the last video object unit (VOBU) in the cell, and the end address (C_LVOBU_EA; 4 bytes) of the last video object unit (VOBU) in the cell. .

FIG. 28 shows the cell reproduction information C_PB of FIG.
FIG. 3 is a diagram for explaining the contents of a cell category C_CAT included in I. This cell category C_CAT corresponds to FIG.
, The lower 8 bits (b0 to b7) indicate the cell command number, the next 8 bits (b8 to b15) indicate the cell still time, and the next 5 bits (b16 to b20) indicate the cell type (for example, karaoke). ), The next one bit (b21) indicates the access restriction flag, the next one bit (b22) indicates the cell playback mode (for example, moving image or still), and skips the reserved bit to the next one bit ( b2
4) indicates a seamless angle change flag, the next one bit (b25) indicates a discontinuity flag of the system time clock STC (whether to reset the STC), and the next one bit (b26) indicates an interleave arrangement flag (C25).
Whether the cell specified by _PBI is in a continuous block or in an interleaved block)
The next one bit (b27) indicates a seamless reproduction flag (whether or not the cell specified by C_PBI should be seamlessly reproduced), and the next two bits (b28 to b2)
9) indicates the cell block type (for example, whether it is an angle block or not) and the last two bits (b30 to b31)
Indicates the cell block mode (for example, whether the cell is the first cell in the block).

Here, the cell block mode is set to 00b (b
Indicates that the cell is not a cell in the block, if it is 01b, it is the first cell in the block, and if it is 10b, it is a cell in the block. , 11b indicates the last cell in the block.

When the cell block type is 00b, it indicates that it is not a part of the corresponding block.
The case of b indicates that the corresponding block is an angle block (a block including a multi-angle cell).

Titles including multi-angle cells (FIG. 1)
If the number of angles AGL_Ns in the TT_SRP of 0 is 2 or more) and the cell block type is not 01b during reproduction, for example, an angle mark (not shown) is kept lit.

On the other hand, if the cell block type = 01b is detected during the reproduction, the fact that the angle block is being reproduced is indicated by blinking of an angle mark (or change of the lighting color or change of the shape of the angle mark). Thus, the viewer (reproducing apparatus user) can be notified. This allows the viewer to know that the video being reproduced can be reproduced at another angle.

When the interleave arrangement flag is 0b, it indicates that the corresponding cell is in a continuous block (a plurality of VOBUs are continuously recorded). When the interleave arrangement flag is 1b, the corresponding cell is interleaved. Blocks (ILVUs each containing one or more VOBUs
Are interleaved).

When the seamless angle change flag is set (= 1b), it indicates that the corresponding cell is to be seamlessly reproduced, and this flag is not set (= 1b).
0b) indicates that the corresponding cell is a target for non-seamless reproduction.

That is, the interleave arrangement flag = 1
b, when the seamless angle change flag = 0b, the non-seamless angle changeable state is possible, and when the interleave arrangement flag = 1b, the seamless angle change flag = 1.
In the case of b, the seamless angle can be changed.

Note that a media drive system having an extremely short access time (a system capable of accessing a head of a desired angle block within one frame period of video;
(Not necessarily limited to the optical disk drive system), if the interleave arrangement flag = 0b,
That is, a smooth angle change can be realized between a set of VOBUs (separate angle cells) that are not interleaved.

Optical disk 10 with relatively slow access speed
Is used as a recording medium, it is preferable to allocate one round of a recording track of the disc to recording of one interleaved block. Then jump between adjacent interleaved blocks (angle change)
Sometimes the trace destination of the optical head only needs to be slightly moved by one track in the radial direction of the disk, so that a track jump with little time lag (suitable for seamless angle change) can be performed. In this case, when a track jump of one video object unit (VOBU) is performed, a time lag of one rotation of the disc can occur at the maximum. Therefore, an angle change involving a jump in VOBU units is suitable for a non-seamless angle change.

Here, the content of the seamless angle change flag is usually determined in advance by a provider (a software creator who produces the program content of each title recorded on the optical disc 10). That is, by determining the content of the seamless angle change flag in advance, the provider can uniquely determine whether to perform the non-seamless angle change or the seamless angle change. However, after reading the cell data of the title set from the optical disc, the hardware of the reproducing apparatus is configured so that the content of the seamless angle change flag in the read data can be arbitrarily changed by the viewer (user of the reproducing apparatus). Is possible.

When the cell playback mode is 0b, continuous playback is performed in the cell, and when it is 1b, still playback is performed in each VOBU existing in the cell.

The access restriction flag can be used when prohibiting direct selection by a user operation. For example,
By setting the access restriction flag of the cell in which the answer of the question book is recorded to 1b, it is possible to prohibit the user from pinching the answer to the question.

The cell type can indicate the following depending on the contents of the five bits when the corresponding cell is created for karaoke, for example.

That is, 000000b specifies no cell type, 00001b specifies a karaoke title image, 00010b specifies a karaoke intro, and 00011b specifies a climax (rust).
Singing part other than, the singing part of the first climax is specified if 00100b, and the singing part of the second climax is specified if 00100b.
If 0b, the male vocal singing part is specified, and 0011
If it is 1b, the singing part of the female vocal is specified, and 0100
If 0b, the singing portion of mixed gender vocals is specified, and 01
001b specifies the interlude (playing of the instrument only), 01010b specifies the interlude fade-in, 01011b specifies the interlude fade-out, 01100b specifies the first ending performance, and 01101b specifies the first ending performance. A second ending performance part is designated. The contents of the remaining 5-bit code can be used for other purposes.

The angle change can be applied to the angle change of the background video of karaoke. (For example, a full-length video of a singer singing a guide vocal, a close-up video of the face, a close-up video of the lips, etc., can be seamlessly along the flow of karaoke music, or can be returned a little earlier to be non-seamless, and During the repeat reproduction, the angle can be changed as desired by the viewer.) The 8-bit contents of the cell still time shown in FIG.
In the case of 00000b, it is specified that it is not still,
When it is 11111111b, a timeless still is specified, and it is 00000001b to 1111111b.
0b, the decimal number (1 to 25)
A still display of a length in which 4) is displayed in seconds is designated.

The number of cell commands indicates the number of commands to be executed when the reproduction of the cell is completed.

FIG. 29 shows program chain general information PG included in program chain information PGCI of FIG.
It is a figure explaining the content of C_GI.

As shown in FIG. 29, program chain general information PGC_GI includes program chain contents (PGC_CNT), program chain playback time (PGC_PB_TM), program chain user operation control information (PGC_UOP_CTL), program chain Chain audio stream control table (P
GC_AST_CTLT) and a control table (PGC_SPST_CT) of the program chain sub-picture stream.
LT), program chain navigation control information (PGC_NV_CTL), program chain sub-picture palette (PGC_SP_PLT), and program chain command table start address (PGC_SP_PLT).
_CMDT_SA) and the start address of the program map of the program chain (PGC_PGMAP_SA)
And the start address (C_PBIT_SA) of the reproduction information table of the cell in the program chain and the start address (C_PBIT_SA) of the position information table of the cell in the program chain.
_POSIT_SA).

The contents of the program chain (PGC_CN)
T) indicates the number of programs and the number of cells (up to 255) in the program chain. Video object V
In the program chain without OB, the number of programs is “0”.

Reproduction time of program chain (PGC_
PB_TM) indicates the total playback time of the programs in the program chain in hours, minutes, seconds, and the number of frames of the video. This PGC_PB_TM has a flag (tc_fla) indicating the type of the video frame.
g) is also described, and the content of this flag specifies a frame rate (25 frames per second or 30 frames per second) and the like.

The user operation control information (PGC_UOP_CTL) of the program chain indicates a user operation prohibited in the program chain being reproduced. The contents will be described later with reference to FIG.

The control table (PGC_AST_CTLT) of the program chain audio stream can include control information of each of the eight audio streams. Each of these pieces of control information includes a flag (availability flag) indicating whether or not the audio stream is available in the corresponding program chain, and conversion information from the audio stream number to the audio stream number to be decoded.

The control table (PGC_SPST_CTLT) of the program chain sub-picture stream is decoded from a flag (availability flag) indicating whether or not the sub-picture stream can be used in the corresponding program chain, and a sub-picture stream number (32). It contains conversion information for sub-video stream numbers.

[0209] The navigation control information (PGC_NV_CTL) of the program chain includes Next_PGCN indicating the program chain number to be reproduced next to the currently reproduced program chain, and the navigation command "LinkPrevPGC" or "PrevPGC".
Previous_PG indicating the program chain number (PGCN) quoted by "_Search ()"
CN, GoUp_PGCN indicating a program chain number to be returned from the program chain, and PG Playbac indicating a reproduction mode (sequential reproduction, random reproduction, shuffle reproduction, etc.) of the program.
k mode and Still time value indicating the still time after the reproduction of the program chain.

The sub-picture palette (P
GC_SP_PLT) describes 16 sets of luminance signals and two color difference signals used in the sub-picture stream in the program chain.

The start address (PGC_CMDT_SA) of the command table of the program chain is the pre-command (executed before PGC reproduction), the post command (executed after PGC reproduction) and the cell command (executed after PGC reproduction) shown in FIG. 23 or FIG. (Executed after cell playback).

The start address (PGC_PGMAP_SA) of the program map of the program chain describes the start address of the program map PGC_PGMAP indicating the configuration of the program in the program chain, as a relative address from the first byte of the program chain information PGCI. It is.

The start address (C_PBIT_SA) of the reproduction information table of the cells in the program chain is the start address of the cell reproduction information table C_PBIT that determines the reproduction order of the cells in the program chain from the first byte of the program chain information PGCI. The relative address is described.

The start address (C_POSIT_SA) of the cell position information table in the program chain is the cell position information table C_PO indicating the VOB identification number and the cell identification number used in the program chain.
The start address of the SIT is set in the program chain information PG
It is described by a relative address from the first byte of the CI.

FIG. 30 is a view for explaining the contents of the program chain user operation control PGC_UOP_CTL included in the program chain general information PGC_GI shown in FIG. This PGC_UOP_CTL can indicate a user operation prohibited in the program chain being reproduced.

This user operation control PGC_UOP_CT
L is composed of 4 bytes (32 bits), and the user operation prohibition flags UOP0 to UOP3 and UOP5 to UOP24 included therein determine whether or not a specific operation can be performed in the PGC being reproduced (for details, see FIG. 75). With reference to later). That is, UOP0 and UOP0 in FIG.
Similarly to OP1, each user operation prohibition flag bit (UO
P0 to UOP3; UOP5 to UOP24) indicate that the corresponding user operation is permitted when the bit content is 0b, and that the corresponding user operation is prohibited when the bit content is 1b. Is shown.

The provider (software creator) of the DVD disk 10 determines the user operation control information (PGC_
The contents of UOP_CTL (bit contents of various UOPs) can prevent a user from calling a menu and jumping to another title during reproduction of a specific PGC of a certain title (in this case, the PGC is reproduced). After finishing, it can be set to enable menu call / title number selection etc.). Alternatively, fast-forwarding can be prohibited during playback of a specific PGC (if the PGC is, for example, a trailer for a series of movies, the user can view all the trailers unless the user stops the playback device).

FIG. 31 shows the video title set V of FIG.
FIG. 31 is a diagram illustrating a hierarchical path from TS (or the program chain PGC in FIG. 22) to the user operation control PGC_UOP_CTL in FIG. 30.

The user operation prohibition flag bits in the program chain PGC (UOP0 to UOP3; UOP5 to UOP)
OP24) described in the user operation control PGC_UOP
_CTL is embedded in a lower layer of the video title set VTS in FIG. That is, as shown in FIG. 31, the video title set information VTSI (FIG. 32) included in the video title set VTS includes a program chain information table PGCIT (FIG. 38), and the program chain information table PGCIT includes the program chain information PGCI ( This program chain information PGCI includes general program chain information PGCI_GI (FIG. 29), and this program chain information general information PGCI_GI includes user operation control PGC_UOP_CTL of the program chain (FIG. 30).
including. Thus, VTS / VTSI / PGCIT / P
By following a hierarchical path such as GCI / PGCI_GI / PGC_UOP_CTL, the user operation inhibition flag bits (UOP0 to UOP3; UOP5 to UOP)
24) can be obtained.

Alternatively, the program chain P shown in FIG.
From the program chain information PGCI included in the GC 87, the user operation prohibition flag bits (UOP0 to UOP3; UOP5 to UOP2) in the program chain PGC
User operation control PGC_UOP_CT in which 4) is described
L (PGC / PGCI / PGCI_GI / P
GC_UOP_CTL) is also conceivable.

Here, the structure of the video title set VTS will be described once by changing the description object. FIG.
FIG. 3 is a diagram for explaining the structure of a video title set VTS. This video title set VTS 72 is composed of a plurality of files 74B. The VTS 72 includes four items as shown in FIG. 32 corresponding to each file.

That is, the video title set VTS7
2 is a video title set information (VTSI) 94;
Video title set menu video object set (VTSM_VOBS) 95 and video title set title video object set (VTSTT)
_VOBS) 96 and video title set information backup (VTSI_BUP) 97.

Here, the video title set information (VT
SI) 94, video object set for video title set title (VTSTT_VOBS) 96, and backup of video title set information (VTSI_
BUP) 97 is a mandatory item, and a video title set menu video object set (VTSM_VO)
BS) 95 can be optional.

As shown in FIG. 32, the video title set information VTSI 94 arranged at the beginning of the video title set VTS 72 includes a video title set information management table (VTSI_MAT; required) 941 and a part of title ( For example, a title search pointer table (VTS_PTT_SRPT; required) 942 for a program chapter), a program chain information table (VTS_PGCIT; required) 943 for a video title set, and a program chain information unit table (VTSM_PGCI_UT; VTSM_VO) for a video title set menu.
(Required when BS exists) 944, Video Title Set Time Map Table (VTS_TMAPT; Optional) 945, Cell Address Table for Video Title Set Menu (VTSM_C_ADT; VT)
(Required if SM_VOBS is present) 946 and video object unit address map for video title set menu (VTSM_VOBU_ADMA)
P; required when VTSM_VOBS is present) 947
And video title set cell address table (VT
S_C_ADT; required) 948 and a video object unit address map (V
TS_VOBU_ADMAP; indispensable) 949 are described in this order.

FIG. 33 is a view for explaining the contents of the video title set information management table VTSI_MAT of FIG. As shown in FIG. 33, the video title set information management table (VTSI_MAT) 941 includes a video title set identifier (VTS_ID),
End address of video title set (VTS_E
A), the end address (VTSI_EA) of the video title set information, and the corresponding optical disc (DVD) 10
, The version number (VERN) of the standard adopted, the category of the video title set (VTS_CAT),
The end address (VTSI_MAT_EA) of the video title set information management table, the start address (VTSM_VOBS_SA) of the video object set in the video title set menu, the start address (VTSTT_VOBS_SA) of the video object set of the video title set title, and the part of the video title set Start address of the title search pointer table (VTS_PTT_SRPT_
SA) and the start address (VTS_PGCIT) of the program chain information table of the video title set.
_SA), the start address of the unit table of the program chain information of the video title set menu (VTSM_PGCI_UT_SA), the start address of the time map table of the video title set (VTS_TMAPT_SA), and the start address of the cell address table of the video title set menu (VTSM_C_ADT_SA). And the start address (VTSM_VOBU_AD) of the address map of the video object unit in the video title set menu.
MAP_SA) and the start address (VTS_C_ADT_) of the cell address table of the video title set.
SA) and the start address (VTS) of the address map of the video object unit of the video title set.
_VOBU_ADMAP_SA) and the video attribute (VTSM_V_ART) of the video title set menu
, The number of audio streams in the video title set menu (VTSM_AST_Ns), and the audio stream attribute in the video title set menu (VTSM_AST_Ns).
_AST_ATR) and the number of sub-picture streams in the video title set menu (VTSM_SPST_Ns)
, A subtitle stream attribute of the video title set menu (VTSM_SPST_ATR), a video attribute of the video title set (VTS_V_ART), and the number of audio streams of the video title set (VTS_
AST_Ns) and a video title set audio stream attribute table (VTS_AST_ATRT)
And the number of sub-picture streams of the video title set (VT
S_SPST_Ns) and a video title set sub-picture stream attribute table (VTS_SPST_ATR)
T), and a multi-channel audio stream attribute table (VTS_MU_A) of the video title set.
ST_ATRT).

Each of the above tables corresponds to the optical disk 1
The data recorded in 0 is aligned with the boundary of the logical block.

FIG. 34 shows the video title set part of title search pointer table VTS_P of FIG.
It is a figure explaining the content of TT_SRPT.

The title search pointer table (VT) for the part-of-title of the video title set shown in FIG.
As shown in FIG. 34, the S_PTT_SRPT) 942 includes part-of-title search pointer table information (PTT_SRPTI) 942A and search pointers (TTU_SRP # 1 to TTU_SRP # n) 942B from title unit # 1 to title unit #n.
And part-of-title search pointers (PTT_SRP # 1-PT
T_SRP # m, or collectively PTT_SRPs; s
942C) are included.

Here, the part of title (PTT)
Indicates an entry point in the corresponding title. The part-of-title (PTT) is assigned a part-of-title search pointer (PTT_SRP), where the number of program chains (PGCN) and the number of programs (PGN) are described. This part-of-title search pointer (PTT_SRP) is located at the beginning of the corresponding program.

[0230] The number of part-of-titles (PTTN) is given for each title. In correspondence with the number of part of titles, one or more part of title search pointers (PTT_SRP) are described in ascending order from 1 to the number of part of titles. Such a part-of-title search pointer (PTT_
A set of SRPs is a title unit (TTU; FIG. 34).
TTU # 1 to TTU # n). For example, the first part of title of each title (PTTN
# 1) corresponds to the program number PGN # 1 in the entry program chain.

If the title is a title composed of one sequential program chain,
The number of part-of-titles (PTTN) is assigned to all programs of the title in the order of reproduction.

A plurality of PTTs defined for a program chain block are assigned to the first program chain of the block.

The multiple part of title (PTT) for another program chain (PGC) in this program chain block is represented by the same program number (PGN) used to define the part of title of the first program chain. Defined.

FIG. 35 is a view for explaining the contents of the part-of-title search pointer table information PTT_SRPTI of FIG. The part-of-title search pointer table information PTT_SRPTI942A includes the number of title units (VTS
_TTU_Ns) and the end address (VTS_PTT_SRPT_EA) of the search pointer table of the part-of-title of the video title set.

Here, the number of title units (VTS_
(TTU_Ns) is the same as the number of titles in the video title set (VTS), and can be up to 99. Also, the end address (VTS_PTT_SRP)
T_EA) is described by the relative number of blocks from the first byte of the corresponding part-of-title search pointer table (VTS_PTT_SRPT).

FIG. 36 is a view for explaining the contents of search pointer TTU_SRP for each title unit #n shown in FIG. Each search pointer (TTU_SRP #
1 to TTU_SRP # n) 942B includes the start address (TTU_SA) of the title unit (TTU). This TTU_SA corresponds to the corresponding part of title search pointer table (VTS_PTT_SRP).
It is described by the relative number of blocks from the first byte of T).

FIG. 37 is a view for explaining the contents of the part-of-title search pointer PTT_SRP in FIG. Each part of title search pointer (PTT_S
RP) 942C is the number of program chains (PGCN)
And the number of programs (PGN). This PG
CN describes the number of program chains to be selected. Multiple program chains (PG
Regarding C), the number of program chains (PGC
N) is the first program chain (PG
Set to the number of C). Also, the number of programs (PG
N) describes the number of programs in the selected program chain (PGC). When the program chain (PGC) does not include the video object (VOB), “0” is described in the number of programs (PGN).

FIG. 38 shows the video title set program chain information table VTS_PGCIT of FIG.
FIG. The program chain information table (VTS_PGCI) of this video title set
T) 943 includes video title set program chain information table information (VTS_PGCITI) 943.
A and a video title set program chain information search pointer (VTS_PGCI_SRP # 1 to VTS
_PGCI_SRP # n) 943B and video title set program chain information (VTS_PGCI) 9
43C.

Note that a plurality of video title set program chain information (VTS_PGCI) 943 are provided.
The order of C is determined by a plurality of video title set program chain information search pointers (VTS_PGCI_SRP).
# 1 to VTS_PGCI_SRP # n) are set regardless of the order of 943B. Therefore, for example, the same program chain information (VTS_PGCI) is stored in one or more program chain information search pointers (VTS_PGCI).
PGCI_SRP).

FIG. 39 shows the program chain information table information VTS_PGC for the video title set shown in FIG.
It is a figure explaining the content of ITI. Video title set program chain information table information (VTS_PG
CITI) 943A is the number of video title set program chain information search pointers (VTS_PGCI).
_SRP_Ns) and the end address (VTS_P) of the video title set program chain information table.
GCIT_EA). This end address (VTS_PGCIT_EA) is stored in the video title set program chain information table (VTS_PGCI).
It is described by the relative number of blocks from the first byte of T).

FIG. 40 shows a program chain information search pointer VTS_PG for the video title set shown in FIG.
FIG. 4 is a diagram for explaining the contents of CI_SRP. Each video title set program chain information search pointer (V
TS_PGCI_SRP) 943B is a category (VTS_PG) of a video title set program chain.
C_CAT) and the start address (VTS_PGCI_S) of the video title set program chain information
A).

FIG. 41 is a view for explaining the contents of the video title set program chain category VTS_PGC_CAT included in the program chain information search pointer VTS_PGCI_SRP of FIG. Here, the category VTS_PGC_CAT of the video title set program chain is composed of 32 bits (4 bytes).

In FIG. 41, VTS_PGC_CAT
Are assigned to the lower bits of the parental identification field, the next 8 bits are assigned to the upper bits of the parental identification field, the next 4 bits are reserved as a reserved field, and the next 2 bits specify the block type. , The next two bits specify the block mode, and the next seven bits specify the title value (V
TS_TTN), and the last one bit (the 32nd bit) specifies the entry type.

That is, if the first entry type is 1b (binary 1) counting from the upper bit of 4 bytes (32 bits), it indicates that the corresponding program chain (PGC) is the entry PGC, and if it is 0b, the corresponding program chain is PGC. This indicates that the program chain is a program chain other than the entry PGC. The following title number (VTS_TTN) indicates the number of titles (up to 99) of the video title set. If the following two-bit block mode is 00b, it indicates that the program chain is not the program chain in the corresponding block. If it is 01b, it indicates that the program chain is the first program chain in the corresponding block. A chain is indicated, and if it is 11b, it is indicated that it is the last program chain in the corresponding block. If the subsequent 2-bit block type is 00b, it indicates that it is not a part of the corresponding block, and it is 01
b indicates that it is a parental block (a block whose reproduction is permitted only under specific conditions). Then 8
+8 bits is an area in which information (flag bit string) for determining the reproduction condition of the parental block is described.

Also, the start address (VTS_PGCI_S) of the video title set program chain information
A) is described by the relative number of blocks from the first byte of the video title set program chain information table.

FIG. 42 shows the program chain information unit table V for the video title set menu shown in FIG.
FIG. 4 is a diagram for describing the contents of TSM_PGCI_UT. Program chain information unit table for this video title set menu (VTSM_PGCI_UT)
944 includes video title set menu program chain information unit table information (VTSM_PG).
CI_UTI) 944A and a language unit search pointer (VTSM_LU_
SRP # 1 to VTSM_LU_SRP # n) 944B
And a video title set menu language unit (VT
SM_LU # 1 to VTSM_LU # n) 944C.

FIG. 43 is a view for explaining the contents of the video title set menu program chain information unit table information VTSM_PGCI_UTI of FIG. Video title set menu program chain information unit table information (VTSM_PGCI_U
TI) 944A includes the number of language units for the video title set menu (VTSM_LU_Ns) and the end address (VTSM_PGCI) of the program chain information unit table for the video title set menu.
_UT_EA). This end address (VTSM_PGCI_UT_EA) is described by the relative number of blocks from the first byte of the video title set menu program chain information unit table (VTSM_PGCI_UT).

FIG. 44 shows a language unit search pointer VTSM_LU for the video title set menu shown in FIG.
It is a figure explaining the contents of _SRP. Language unit search pointer for video title set menu (VTSM
The _LU_SRP) 944B includes a video title set menu language code (VTSM_LCD) and a start address (VTSM_LU_SA) of the video title set menu language unit.

The language code (VTSM_LCD) describes the language code of the language unit for the video title set menu. One language appears only once in this table. Start address (VTSM_LU_S
A) describes the start address of the language unit for video title set menu (VTSM_LU) by the relative number of blocks from the first byte of the program chain information unit table for video title set menu (VTSM_PGCI_UT).

FIG. 45 is a view for explaining the contents of the video title set menu language unit VTSM_LU of FIG. The video title set menu language unit (VTSM_LU) 944C includes video title set menu language unit information (VTSM_LUI).
944CA and a program chain information search pointer for video title set menu (VTSM_PGCI).
_SRP # 1 to VTSM_PGCI_SRP # n) 94
4CB and video title set menu program chain information (VTSM_PGCI) 944CC.

A plurality of video title set menu program chain information (VTSM_PGCI)
The order of 944CC is determined by the program chain information search pointer (VTS) for a plurality of video title set menus.
M_PGCI_SRP # 1 to VTSM_PGCI_SR
P # n) is set regardless of the order of 944CB.
Therefore, for example, the same video title set menu program chain information (VTSM_PGCI)
Is set to one or more video title set menu program chain information search pointers (VTSM_PGCI_S
RP).

FIG. 46 is a view for explaining the contents of the video title set menu language unit information VTSM_LUI of FIG. The video title set menu language unit information (VTSM_LUI) 944CA is the number of video title set menu program chain information search pointers (VTSM_PGCI_SRP_N).
s) and the end address of the language unit for the video title set menu (VTSM_LU_EA).

Here, the number of search pointers (VTSM_P
GCI_SRP_Ns) describes the number of video title set menu program chains (VTSM_PGC). In addition, the end address (VTSM
_LU_EA) describes the end address of the language unit (VTSM_LU) with the relative number of blocks from the first byte of the language unit for video title set menu (VTSM_LU).

FIG. 47 shows the program chain information search pointer VT for the video title set menu shown in FIG.
FIG. 3 is a diagram for explaining the contents of SM_PGCI_SRP. Program chain information search pointer for video title set menu (VTSM_PGCI_SRP # 1-V
The TSM_PGCI_SRP # n) 944CB includes the category (VTSM_PGC_CAT) of the video title set menu program chain and the start address (VTSM_PGCI_SA) of the video title set menu program chain information.

FIG. 48 is a view for explaining the contents of the video title set menu program chain category VTSM_PGC_CAT included in the program chain information search pointer VTSM_PGCI_SRP of FIG. This video title set menu program chain category (VTSM_PGC_CA
T) is composed of 32 bits (4 bytes).

In FIG. 48, VTSM_PGC_CA
The lower 8 bits of T are assigned to the lower bits of the parental identification field, the next 8 bits are assigned to the upper bits of the parental identification field, the next 4 bits are reserved as reserved fields, and the next 2 bits specify the block type. And specify the block mode with the next two bits,
The next 4 bits describe the menu identifier (menu ID), the next 3 bits are reserved as reserved fields,
The entry type is designated by the last one bit (the 32nd bit).

First, if the first entry type counted from the upper 4 bits (32 bits) is 1b (binary 1), it indicates that the corresponding program chain (PGC) is the entry PGC, and if it is 0b, the corresponding program chain (PGC) is corresponding. This indicates that the program chain is a program chain other than the entry PGC.

The content of the subsequent 4-bit menu identifier (menu ID) is determined as follows. If the entry type is 0b, 0000b is entered in the menu ID, and if the entry type is 1b, the following binary code is entered in the menu ID.

That is, if the root menu is 0011b
Is entered, 0100b is entered for an audio menu, 0101b is entered for an audio menu, 0110b is entered for an angle menu, and 0111b is entered for a part-of-title (such as a chapter) menu. The 4-bit binary code of the menu identifier (menu ID) other than these is
Reserved for other uses.

If the 2-bit block mode following the menu identifier (menu ID) is 00b, it indicates that the program chain is not the program chain in the corresponding block, and if it is 01b, it indicates that it is the first program chain in the corresponding block. If it is 10b, it indicates that it is the program chain in the corresponding block.
If it is b, it indicates that it is the last program chain in the corresponding block. The following 2-bit block type is 0
If it is 0b, it indicates that it is not a part of the corresponding block, and if it is 01b, it indicates that it is a parental block (a block whose reproduction is allowed only under specific conditions). The subsequent 8 + 8 bits are an area in which information (flag bit string) for determining the reproduction condition of the parental block is described.

The start address (VTSM_PGCI_SA) included in the program chain information search pointer VTSM_PGCI_SRP in FIG. 47 indicates the start address of the video title set menu program chain information (VTSM_PGCI) and the video title set menu language unit (VTSM_L).
This is described by the relative number of blocks from the first byte of U).

FIG. 49 shows the optical disk 1 of FIG. 1 or FIG.
0 playback device (DVD player in FIG. 76 described later)
FIG. 3 is a diagram for explaining a hierarchical structure of a menu used in FIG.
This diagram is also a conceptual diagram for explaining the correspondence between the system menu and the user operation functions.

This menu (which is appropriately popped up on the screen of the TV monitor 6 in FIG. 76) is roughly divided into
There is a title menu, a video title set menu, and an option menu. Among them, the call of each menu in the video title set menu,
This is performed based on the contents of the menu ID in FIG.

That is, when a menu call is first made, the root menu program chain of menu ID = 0011b is called. Thereafter, when the audio menu is displayed, the audio menu program chain of menu ID = 0101b is called,
When displaying the sub-picture menu, menu ID = 010
When the sub-menu menu chain 0b is called and the angle menu is displayed, the menu ID =
The program chain for the angle menu of 0110b is called, and when the part of title (chapter) menu is displayed, the program chain for the part of title menu of menu ID = 0111b is called.

When the playback device user (viewer) shown in FIG. 76 changes the angle, the menu ID =
The angle menu program chain 0110b is called, and the angle menu is displayed on the monitor 6. (The angle may be changed without displaying the angle menu on the monitor 6.) FIG. 50 is a view for explaining the contents of the video title set time map table VTS_TMAPT in FIG. Video title set time map table (VT
(S_TMAPT) 945 includes information describing the recording position of each program chain of the video title set with a limited playback time.

That is, the time map table (V
TS_TMAPT) 945 includes video title set time map table information (VTS_TMAPTI) 9
45A and a video title set time map search pointer (VTS_TMAP_SRT # 1 to VTS_TM).
AP_SRT # n) 945B and video title set time maps (VTS_TMAP # 1 to VTS_TMA)
P # n) 945C.

When the video title set includes any one sequential program chain title, the video title set time map (VTS_TMAP) is always set regardless of whether time search or time play is permitted in the title. be written.

[0268] Video title set time map (VT
S_TMAP) is one or more, and the number thereof is the video title set program chain information search pointer (VTS).
_PGCI_SRP). Therefore, when a certain program chain block is composed of a plurality of program chains, the video title set time map (VTS_TMAP) is described for all the program chains in the block.

Each video title set time map (VTS_TMAP) is described in the same order as a plurality of video title set program chain information search pointers (VTS_PGCI_SRP) in the video title set.

FIG. 51 is a view for explaining the contents of the video title set time map table information VTS_TMAPTI in FIG. 50. This video title set time map table information (VTS_TMAPTI) 945
A is the number of video title set time maps (VTS
_TMAP_Ns) and the end address (VTS_TMAPT) of the video title set time map table.
_EA).

Here, the number of video title set time maps (VTS_TMAP_Ns) is determined by the video title set time map (VTS_TMA) in the video title set time map table (VTS_TMAPT).
P) is described. This map number (VTS
_TMAP_Ns) is set to be equal to the number of video title set program chain information search pointers (VTS_PGCI_SRP) in the video title set. Also, the end address (VTS_TMAPT_EA) of the video title set time map table
Is a video title set time map table (VT
This time map table (VTS_TMAP) is represented by the number of relative blocks from the first byte of S_TMAPT.
T) describes the end address.

FIG. 52 is a time map search pointer VTS_TMAP_SR for the video title set shown in FIG.
It is a figure explaining the content of P. Video title set time map search pointer (VTS_TMAP_SRT)
# 1 to VTS_TMAP_SRT # n) 945B include the start address (VTS_TMAP_SA) of the video title set time map. This start address (VTS_TMAP_SA) is stored in the video title set time map table (VTS_TMAP).
T) with the relative number of blocks from the first byte of the corresponding video title set time map (VTS_T).
MAP) is described.

FIG. 53 is a view for explaining the contents of the video title set time map VTS_TMAP in FIG. Video title set time map (VTS_T
The MAP # 1 to VTS_TMAP # n) 945C include a time unit (TMU) in which the time unit is expressed in seconds, the number of map entries (MAP_EN_Ns), and a map entry address (MAP_ENA).

Here, the time unit (TMU) describes the time interval of each map entry (MAP_EN) in seconds. Each map entry (MAP_E
N) describes the recording position of each time map with the time limited by the value of the time unit (TMU). The map entry (MAP_EN) is used for each time unit (T) on the program chain (PGC).
MU) is set from the beginning of the continuous program chain.

If an angle block is included in the program chain (PGC), the angle number #
1 (one or more) map entries (MAP_E
N) only. Also, the cell command in the program chain command table (PGC_CMDT; FIG. 25), the cell category (C_
Regardless of the cell playback mode in the CAT; FIG. 28) or the cell still time in the cell category (C_CAT), the map entry (MAP_MAP)
EN) is set such that the program chain (PGC) is reproduced sequentially.

If zero is described in the time unit (TMU), the number of map entries (MAP_E
N_Ns) is zero. In this case, the map entry address (MAP_ENA) is not described.

If the above program chain (PGC)
Is a sequential program chain title, and this program chain (PGC)
Is accessible by user operation such as time search or time play, the time unit (TMU) takes a value other than zero.

The number of map entries in FIG. 53 (MAP_E
N_Ns) is a video title set time map (V
Map entry (MAP_E) in TS_TMAP)
N) (between 0 and 2048).
If the time unit (TMU) is zero, the number of map entries (MAP_EN_Ns) is also zero.

Also, the first map entry address (MAP_ENA) in the program chain (PGC)
Is the first one in the program chain (PGC)
Assigned to a time unit (TMU). The number of map entry addresses (MAP_ENA) is equal to the number of map entries, and the total number of bytes is the number of map entries X4 bytes.

FIG. 54 is a view for explaining the contents of the map entry address MAP_ENA included in the video title set time map VTS_TMAP of FIG. This map entry address (MAP_ENA)
Each is composed of 4 bytes (32 bits). The first one byte forms the lower 8 bits of MAP_ENA, the next two bytes form the middle 8 + 8 bits of MAP_ENA, the next seven bits form the upper 7 bits of MAP_ENA, and the last bit (the 32nd bit) is It is used as a discontinuity flag.

The discontinuity flag is 0b (binary 0)
Then, the current map entry address (MAP_EN
A) and the next map entry address (MAP_EN)
A) indicates that both belong to the same cell. When this continuous flag is 1b, the current map entry address (MAP_ENA) and the next map entry address (MAP_ENA) belong to different cells, or the current map entry address (MAP_EN).
A) is indicated as the last map entry address (MAP_ENA) of the program chain (PGC).

The map entry address (MA in FIG. 54)
P_ENA) is the starting address of the video object unit (VOBU) in which this address (MAP_ENA) is located, from the first logical block of the video object set for video title set title (VTSTT_VOBS) in the video title set (VTS). Is described with the relative number of blocks.

FIG. 55 shows the cell address table VTSM_C_ADT for the video title set menu shown in FIG.
FIG. Cell address table for video title set menu (VTSM_C_AD)
T) 946 contains video title set menu cell address table information (VTSM_C_ADTI) 94
6A and cell piece information for video title set menu (VTSM_CPI # 1 to VTSM_CPI # n) 9
46B.

FIG. 56 shows the cell address table information VTSM_C_A for the video title set menu shown in FIG.
It is a figure explaining the content of DTI. Cell address table information for video title set menu (VTSM_C
_ADTI) 946A is a video object set for video title set menu (VTSM_VOBS).
Of video objects (VOBs) in the
OB_Ns) and the end address (VTSM_C_ADT_EA) of the video title set menu cell address table (VTSM_C_ADT).

Here, the number of video objects for the video title set menu (VTSM_VOB_Ns) is
Video title set menu video object set (VTSM_VOB) in the video title set
It describes the number of video objects (VOBs) in S). Also, the end address (VTSM_C_A) of the video title set menu cell address table is used.
DT_EA) describes the end address of the cell address table (VTSM_C_ADT) with the number of relative blocks from the first byte of the cell address table for video title set menu (VTSM_C_ADT).

FIG. 57 is a view for explaining the contents of the video title set menu cell piece information VTSM_CPI of FIG. 55. Video title set menu cell piece information (VTSM_CPI # 1 to VTSM_CPI
#N) 946B is a numerical value (VTSM_VOB) of a video object identifier (VOB_ID) for the cell piece.
_IDN) and a cell identifier (Cel) for the cell piece.
1_ID) and the cell title (VTSM_C) of the video title set menu.
P) start address (VTSM_CP_SA);
Video title set menu cell piece (VTSM
_CP) end address (VTSM_CP_EA).

Here, the numerical value of the video object identifier (VTSM_VOB_IDN) is the cell piece (CP)
Describes the number of the video object identifier (VOB_ID) of the video object (VOB) to which this belongs. The cell identifier value (VTSM_C_IDN) is
Identifier (Cell_) of the cell to which the cell piece (CP) belongs
ID) is described. The start address of the cell piece (VTSM_CP_SA) is the start address of the first navigation pack (NV_PCK) of the cell piece as a relative block number from the first logical block of the video title set menu video object set (VTSM_VOBS) in the video title set. This is what we described. Then, the end address of the cell piece (VTSM_CP_E
A) shows the end address of the last logical block of the cell piece as the video object set for video title set menu (VTSM) in the corresponding video title set.
_VOBS) with the relative block number from the first logical block.

FIG. 58 is a view for explaining the contents of the video title unit menu video object unit address map VTSM_VOBU_ADMAP of FIG. Video object unit address map for video title set menu (VTSM_VOBU_
(ADMAP) 947 includes address map information (VTSM_VOBU_ADAPI) 947A of the video title set menu video object unit and addresses (VTSM_VOBU_AD # 1 to VTS_VOBU_AD # 1 to V) of the video title set menu video object unit.
TSM_VOBU_AD # n) 947B.

Here, the address map (VTSM_VO)
On the (BU_ADMAP) 947, the video object set (VTSM_V) for the video title set menu is displayed.
All video object units (VOs) in the OBS
BU) start addresses are described in ascending order of their logical block numbers.

FIG. 59 is a view for explaining the contents of the video title unit menu video object unit address map information VTSM_VOBU_ADAPI of FIG. 58. Address map information of the video object unit for the video title set menu (VTSM_
The VOBU_ADAPI 947A includes the end address (VTSM_VOBU_ADMAP_EA) of the address map (VTSM_VOBU_ADMAP) of the video object unit for the video title set menu.

This VTSM_VOBU_ADMAP_E
A is an address map (VTSM_VOBU_) of the video object unit for the video title set menu.
This address map (VTSM_VOBU_AD) is represented by the relative number of blocks from the first byte of ADMAP.
MAP) is described.

FIG. 60 shows the video object unit address VT for each video title set menu in FIG.
It is a figure explaining the content of SM_VOBU_AD # n.
Address of video object unit for video title set menu (VTSM_VOBU_AD # n) 9
47B is a video object unit (VOBU #
n) includes the start address (VTSM_VOBU_SA # n) of the video title set menu video object unit (VTSM_VOBU).

This VTSM_VOBU_SA # n is a video object set for video title set menu (VTSM_VOB) in the video title set.
The n-th video object unit (VOB) is represented by the number of logical blocks relative to the first logical block in S).
U # n) is described.

FIG. 61 is a view for explaining the contents of the video title set cell address table VTS_C_ADT of FIG. The video title set cell address table (VTS_C_ADT) 948 includes video title set cell address table information (VTS_C_A).
DTI) 948A and video title set cell piece information (VTS_CPI # 1 to VTS_CPI # n) 9
48B.

This cell address table (VTS_C_
ADT) 948, the video object set (VTSTT_VOB) of the video title set title
The start address and end address of all cells and all interleaved units in S) are described.

When a cell belongs to a video object arranged in an interleaved block,
The cell piece is one interleaved unit (ILV
U). When the cell boundaries are within one interleaved unit (ILVU), a cell piece is defined by each cell in the interleaved unit.

The video title set cell piece information (VTS_CPI) of each cell piece includes a video object identifier number (VOB_IDN) first, a cell identifier number (C_IDN) second, and a reproduction order of cell pieces in a cell third. be written.

The video object identifier number (VOB_IDN) and cell identifier number (C_ID)
N) is given to the cell to which the cell piece belongs.

FIG. 62 is a view for explaining the contents of the video title set cell address table information VTS_C_ADTI of FIG. 61. Video title set cell address table information (VTS_C_ADTI) 948A
Is the number of video title set video objects (VTS_VOB_N) indicating the number of video objects in the video object set of the video title set title.
s), and a video title set cell address end address (VTS_C_ADT_EA) indicating the end address of the video title set cell address table.

Here, the number of video title set video objects (VTS_VOB_Ns) describes the number of video object sets (VTSTT_VOBS) of video title set titles in the video title set.

The video title set cell address end address (VTS_C_ADT_EA) is the video title set cell address (VTS_C_ADT).
The end address of this cell address (VTS_C_ADT) is described by the number of relative logical blocks from the first byte of the cell address.

FIG. 63 is a view for explaining the contents of the video title set cell piece information VTS_CPI in FIG. Video title set cell piece information (VTS_
(CPI) 948B is the video object identifier number (VTS_V) of the video title set for the cell piece.
OB_IDN), a video title set cell identifier number (VTS_C_IDN) for the cell piece, a video title set cell piece start address (VTS_CP_SA), and a video title set cell piece end address (VTS_CP_EA).

[0303] Here, the video object identifier number (VTS_VOB_IDN) describes the identification number of the video object of the video title set to which the cell piece belongs.

Also, the cell identifier number (VTS_C_ID)
N) describes the identification number of the cell of the video title set to which the cell piece belongs.

Further, the start address (V
TS_CP_SA) describes the start address of the first navigation pack of the cell piece by the number of logical blocks relative to the first logical block of the video object of the video title set title in the video title set.

The cell piece end address (VT)
S_CP_EA) is the number of logical blocks relative to the first logical block of the video object of the video title set title in the video title set.
This describes the end address of the last logical block of the cell piece.

FIG. 64 shows an address map VTS of the video object unit for the video title set shown in FIG.
FIG. 4 is a diagram for describing the contents of _VOBU_ADMAP. Video object unit address map (VTS_VOBU_ADMAP) 949 for video title set
Contains address map information (VTS_VOBU_ADM) of the video object unit of the video title set.
API) 949A and the address of the video object unit of the video title set (VTS_VOBU_
AD # 1 to VTS_VOBU_AD # n) 949B.

This address map (VTS_VOBU_
ADMAP) 949, the video object set (VTSTT_VO) of the video title set title.
The start addresses of all video object units in BS) are described in ascending order of their logical block numbers.

FIG. 65 shows the address map information V of the video object unit for the video title set shown in FIG.
It is a figure explaining the content of TS_VOBU_ADAPI. Address map information (VTS_VOBU_ADMA) of the video object unit of the video title set
PI) 949A includes the end address (VTS_VOBU_ADMAP_EA) of the address map of the video object unit of the video title set.

This VTS_VOBU_ADMAP_EA
Is the address map of the video object unit of the video title set (VTS_VOBU_ADMAP)
Of the VTS_VOBU_ADMA
It is described by the number of relative blocks from the first byte of P.

FIG. 66 shows the address VTS_V of the video object unit for each video title set shown in FIG.
It is a figure explaining the content of OBU_AD # n. The address (VTS_VOBU_AD # n) 949B of the video object unit of the video title set describes the start address (VTS_VOBU_SA # n) of the video object unit of the video title set for the n-th video object unit (VOBU # n). .

[0312] This VTS_VOBU_AD # n is the start of the n-th video object unit (VOBU # n) with the number of relative logical blocks from the first logical block of the video object set of the video title set title in the relevant video title set. It describes the address.

FIG. 67 is a diagram for explaining a case where one sequential PGC title is formed by only one program chain of FIG. 22. FIG. 68 is a diagram showing a case where a plurality of program chains of FIG. It is a figure explaining the case where it is formed.

FIG. 6 shows the program chain (PGC).
7 and FIG. 68, one or more program chains (PGC # 2, PGC # 3, PG) following the entry program chain (Entry PGC) and the entry program chain (Entry PGC # 1).
C # 4, ...).

As shown in FIG. 67, in a title composed of only one sequential program chain (or a title composed of only one random program chain), the program chain is composed of only an entry program chain (Entry PGC). . The entry program chain is a program chain that is reproduced first when a certain title is reproduced.

Here, one sequential program chain title is composed of a single program chain that does not involve loop reproduction, random reproduction, or shuffle reproduction. On the other hand, one random program chain title is composed of a single program chain accompanied by loop playback, random playback, or shuffle playback.

In a multi-program chain title including two or more sequential program chains, FIG.
As shown in FIG. 8, the entry program chain (En
After the “try PGC # 1”, one or more program chains (PGC # 2, PGC # 3, PGC # 4,...) are variously arranged. By using a plurality of program chains, a drama that can be developed into a multi-story can be recorded in the multi-program chain title.

For example, in a three-person drama in which the performers are the leading role A, the associate leading role B and the supporting role C, the entry PGC # 1
(End), PGC # 2 of the first story expansion from the viewpoint of A, the second story from the viewpoint of B
Any one of PGC # 3 of story expansion and PGC # 3 of third story expansion viewed from the viewpoint of C can be selected.

As shown in FIG. 68, a mark PTT indicating the start address of a part of title (chapter) can be added in advance to some program chains PGC. By using this mark PTT as a jump destination mark (jump destination address), story switching in which a playback switching destination is determined in units of part of title (PTT) can be performed.

[0320] It is possible to use the multi-angle function inside the selected story (during reproduction of the selected program chain PGC). That is, multi-angle reproduction is possible in any of the program chains in FIG. (It is determined by the software provider whether or not to insert an angle block capable of multi-angle reproduction in each program chain.) When a multi-story user is selected (for example, FIG. 68)
PGC # 2 to PGC # 2 using menu after PGC # 1
When any one of GC # 4 is selected), a user-selectable program chain and a non-user-selectable program chain can be specified. Specifically, in FIG. 68, PGC # 2 (first story) and PG
The user operation for selecting C # 3 (second story) is permitted (the content of the corresponding user operation UOP is bit 0), and the PGC
The user operation to select # 4 can be prohibited (the content of the corresponding UOP is bit 1). Of course, all of the recorded multi-story PGCs can be user-selectable.

FIG. 69 shows the video title set V of FIG.
FIG. 3 is a diagram illustrating a hierarchical path from a TS to a navigation command (a link command group, a jump command group, etc.) and navigation parameters (general parameters, system parameters).

As already described with reference to FIG.
The video area of the D disk 10 is a video manager VMG
And one or more video title sets VTS. Each video title set VTS includes video title set information VTSI and one or more video object sets VOBS.

Video title set information VTSI includes a program chain information table PGCIT (FIG. 38).
943). Program chain information table PGCI
T includes program chain information PGCI (FIG. 2)
5). The program chain information PGCI includes a program chain command table PGC_CMDT (FIG. 7).
0). Program chain command table PGC_C
MDT includes a post command POST_CMD (FIG. 7)
1).

[0324] The post command POST_CMD forms a part of the navigation command NV_CMD (Fig. 73). By setting the value of the system parameter SPRM using the navigation command NV_CMD,
The provider of the DVD disk 10 can control the playback device. The manner of operation of this reproducing apparatus is determined by the general parameter G
The control can be performed by storing the history of user operations in the PRM. These parameters GPRM and SPRM constitute navigation parameters. This navigation parameter is the same as the navigation command NV_CM
D is a parameter that can be accessed.

The video object set VOBS includes a navigation pack NV_PCK (8 in FIG. 13).
6). The navigation pack NV_PCK includes reproduction control information PCI (FIG. 17). The reproduction control information PCI includes highlight information HLI (FIG. 18). Highlight information H
The LI includes a button information table BTNIT (not shown), and the BTNIT includes a button command BTN_CMD (FIG. 72).

The button command BTN_CMD forms a part of the navigation command NV_CMD (FIG. 101), like the post command POST_CMD. By setting the value of the system parameter SPRM using the navigation command NV_CMD, the provider of the DVD disk 10 can control the playback device. The manner of operation of this playback apparatus can be controlled by storing the history of user operations in the general parameter GPRM.

FIG. 70 shows the program chain command table start address P in PGCI_GI shown in FIG.
FIG. 4 is a diagram for explaining the contents of a PGC command table PGC_CMDT specified by GC_CMDT_SA. The command table PGC_CMDT includes program chain command table information PGC_CMDTI, one or more pre-commands PRE_CMD # i, one or more post commands POST_CMD # j, and one or more cell commands C_CMD # k. Here, each post command POST_CMD # j is set to 8 as shown in FIG.
It is a kind of navigation command described in bytes.

FIG. 71 shows a post command POST_CM in the PGC command table PGC_CMDT of FIG.
The configuration of D is illustrated.

FIG. 72 shows the button command BTN_ in the PGC command table PGC_CMDT in FIG.
2 illustrates a configuration of a CMD. This button command BT
N_CMD is included in the highlight information HLI in the reproduction control information PCI of FIG.

The pre-command PRE_CMD, post-command POST_CMD, and cell command C_CM shown in FIG.
D or the button command BTN_CMD in FIG.
Constitutes a navigation command.

FIG. 73 is a view for explaining the structure of the navigation command (NV_CMD). This navigation command includes a GoTo instruction group for changing the execution order of the navigation command, a Link instruction group for starting reproduction specified in the current domain, and a Jump instruction group for starting reproduction specified in the specified domain. And a Compare instruction group for comparing specified values,
SetSystem to set navigation parameters
m instructions and S for calculating the value of the general parameter GPRM
et instruction group.

FIG. 74 shows the navigation parameter setting (SetSyste) included in the navigation command of FIG.
m) A diagram for explaining the contents of a group of instructions. This navigation parameter setting instruction group includes a command Set for setting a stream number to a predetermined system parameter SPRM.
STN and a command SetNVTM for setting a navigation timer condition to a specific system parameter SPRM.
R and a command SetHL_ for setting a selected state highlight button number in a specific system parameter SPRM.
BTNN, a command SetAMXMD for setting the audio mixing mode of the karaoke player to a specific system parameter SPRM, and a command SetGPRMD for setting a general parameter mode and its value to a specific general parameter GPRM.

FIG. 75 shows the title reproduction type T shown in FIG.
User operation control in T_PB_TY (UOP0, UOP
1), user operation control VOBU_UOP_CT in FIG.
The relationship between the control bits (UOP0 to UOP24) of the user operation control (UOP0 to UOP24) in L and the user operation control (UOP0 to UOP24) in the user operation control PGC_UOP_CTL of FIG. FIG.

[0334] Of the 24 UOPs exemplified in Fig. 75, UOP0 designates prohibition / permission of time reproduction and time search by the user, and is included in TT_PB_TY or PGC_UOP_CTL.

UOP1 designates the prohibition / permission of part-of-title reproduction and part-of-title search by the user, and is specified by TT_PB_TY or PGC_UOP.
_CTL.

UOP2 specifies prohibition / permission of title reproduction by the user, and is included in PGC_UOP_CTL.

UOP3 is for prohibition of reproduction stop by user /
This specifies the permission, and is included in PGC_UOP_CTL.

UOP4 is for various GoUp operations by the user (numerical values in the title domain, numerical values in the menu space,
Alternatively, when the numerical value of the program chain number is FFFFh, this specifies the prohibition / permission of an operation of increasing those numerical values and the like, and is included in VOBU_UOP_CTL.

UOP5 designates prohibition / permission of time search or part of title search by the user.
PGC_UOP_CTL or VOBU_UOP_CT
L.

UOP6 designates the prohibition / permission of the previous (preceding) program search or the head program search by the user, and is specified by PGC_UOP_CTL or VOBU_
It is included in UOP_CTL.

UOP7 designates prohibition / permission of the next (subsequent) program search by the user, and PGC_UO
It is included in P_CTL or VOBU_UOP_CTL.

UOP8 designates prohibition / permission of forward scan (fast forward) by the user.
_CTL or VOBU_UOP_CTL.

UOP9 designates the prohibition / permission of the backward scan (fast rewind) by the user, and PGC_UOP
_CTL or VOBU_UOP_CTL.

UOP 10 is for designating prohibition / permission of calling the title menu (see FIG. 49) by the user.
PGC_UOP_CTL or VOBU_UOP_CT
L.

UOP 11 designates prohibition / permission of calling the root menu (see FIG. 49) by the user.
GC_UOP_CTL or VOBU_UOP_CTL
include.

UOP 12 designates the prohibition / permission of calling the sub-picture menu (see FIG. 49) by the user.
GC_UOP_CTL or VOBU_UOP_CTL
include.

UOP 13 designates prohibition / permission of calling of an audio (voice) menu (see FIG. 49) by the user, and is performed by PGC_UOP_CTL or VOBU_U.
It is included in OP_CTL.

UOP 14 is for designating prohibition / permission of angle menu (see FIG. 49) calling by the user.
PGC_UOP_CTL or VOBU_UOP_CT
L.

UOP 15 designates prohibition / permission of calling of a part-of-title (chapter) menu (see FIG. 49) by the user, and is included in PGC_UOP_CTL or VOBU_UOP_CTL.

UOP 16 designates the prohibition / permission of the resume operation by the user, and PGC_UOP_CT
L or VOBU_UOP_CTL.

The UOP 17 designates prohibition / permission of various button operations (upper button selection, lower button selection, left button selection, right button selection, button selection, or button selection / determination) by the user, and PGC_UOP_CTL.
include.

UOP 18 designates the prohibition / permission of the still (still image) off operation by the user.
It is included in UOP_CTL or VOBU_UOP_CTL.

UOP 19 designates prohibition / permission of a pause (pause) on operation by the user.
It is included in UOP_CTL or VOBU_UOP_CTL. Note that the UOP 19 may be used to specify prohibition / permission of a user operation for pausing off or selecting a menu language.

UOP 20 designates the prohibition / permission of the audio stream change operation by the user, and PGC_UO
It is included in P_CTL or VOBU_UOP_CTL.

UOP 21 designates prohibition / permission of a sub-picture stream change operation by the user.
It is included in OP_CTL or VOBU_UOP_CTL.

The UOP 22 designates the prohibition / permission of the angle changing operation by the user, and PGC_UOP_C
TL or VOBU_UOP_CTL. Note that the UOP 22 may be used to designate prohibition / permission of a user operation for parental level selection or parental application country selection.

UOP 23 designates the prohibition / permission of the karaoke sound reproduction mode change operation by the user.
It is included in C_UOP_CTL or VOBU_UOP_CTL.

[0358] UOP24 designates prohibition / permission of the video playback mode change operation by the user.
It is included in OP_CTL or VOBU_UOP_CTL.

By appropriately using UOP0 to UOP24 shown in FIG. 75, the provider of the DVD disk 10 can prohibit or permit a specific user operation at a specific video playback time (or a specific user selection time). For example, a provider of a DVD disc containing a video work with commercials can set flag bits of various UOPs so that the reproduction of the main body of the video work cannot be performed until the full-length reproduction of a predetermined commercial is completed.

FIG. 76 is a block diagram illustrating a schematic configuration of an optical disk reproducing apparatus according to an embodiment of the present invention.

An optical disk (DVD video ROM disk) 10 on which data having a structure as shown in FIG. 3 is recorded is set on a disk tray (not shown) of the main body of a reproducing apparatus (DVD player), and a reproduction start key is turned on by a user (see FIG. 3). One of the user operations), the disk 10 is loaded into the disk drive 30. Such user operation is performed by the operation key panel 4 with the backlight or the remote controller 5 that performs infrared communication via the remote controller transmission / reception unit 4A.

In the optical disk reproducing apparatus shown in FIG. 76, when the optical disk 10 is loaded, the MPU 50 reads the initial operation program from the memory 56 and operates the disk drive 30. Then, the disk drive 30 starts a read operation from the lead-in area 27 of the optical disk 10. By this read operation, the volume and file structure area 7 following the lead-in area 27
0 (FIG. 3) is read. The volume and file structure of the area 70 are defined in accordance with a predetermined standard (such as a UDF bridge).

The MPU 50 gives a read command to the disk drive 30 to read the volume and the file structure area 70 recorded at a predetermined position on the optical disk 10 set in the disk drive 30. The contents are read out and temporarily stored in the memory 56 via the system processor 54.

Subsequently, the MPU 50 uses the path table and the directory record (read from the optical disc 10) stored in the memory 56 to
Information such as the recording position, recording capacity, size, etc. of each file on the disk 10 and other information (management information) necessary for management, and transfer the extracted information to a predetermined location in the memory 56 from the data stored in the memory 56. And save it there.

Next, the MPU 50 refers to the information such as the recording position and the recording capacity of each file from the memory 56, and
A video manager VMG (FIG. 6) consisting of a plurality of files starting from file number 0 is obtained.

That is, the MPU 50 refers to the information such as the recording position and the recording capacity of each file acquired from the memory 56 and gives a read command to the disk drive 30 to configure the video manager VMG existing on the root directory. The position and size of a plurality of files to be obtained are obtained, and the video manager VMG is read.
The video manager VMG thus read is transferred to the memory 56 via the system processor 54 and stored in a predetermined location in the memory 56.

In the configuration of FIG. 76, data processing at the time of reproduction is as follows.

First, upon receiving a reproduction start command by a user operation, the MPU 50 reads the management area of the disk 10 from the disk drive 30 and determines an address to be reproduced. Next, the MPU 50 controls the disk drive 30
The read data address and the read command determined previously.

The disk drive 30 reads sector data from the disk 10 and transfers it to the system processor 54 in accordance with the sent command. System processor 5
In step 4, the error correction of the transferred data is performed.
The data separation unit 54A separates each data type (video data, sub-picture data, audio data).
The separated data are MPEG packets in the form of video packets (V packets), sub-picture packets (SP packets), and audio packets (A packets).
The data is transferred to the decoder 58, the sub-picture decoder 62, and the audio decoder 60. Other packets (such as the navigation pack 86 in FIG. 13) are transferred to the memory 56 for later processing by the MPU 50.

The above packet data (V packet, SP
At the start of the transfer, the presentation time stamp PTS is loaded into a system time counter STC (not shown). Thereafter, each of the decoders (58 to 62) performs a reproducing process in synchronization with the value of the PTS in the packet data (while comparing the values of the PTS and the STC). Then, via the video processor 59, T
A video with subtitles is sent to the V monitor 6 to perform video playback, and the digital data of the A-pack is converted into an analog audio signal via the D / A converter DAC 61 and then sent to the external amplifier and the speaker 8 for audio playback. Perform

The MPU 50 transmits various on-screen display (OSD) data to the video processor 59.
, Where the OSD image is superimposed on the video data so that the OSD display can be appropriately performed.

FIG. 77 is a view for explaining the internal configuration of the remote controller 5 used in the playback apparatus (DVD player) shown in FIG. This remote controller 5
MP via the remote controller transmitter / receiver 4A in FIG.
A remote controller transmitter / receiver 5A that receives information (UOP information and the like) sent from the U50 and sends it to its own MPU 5B, and a specific remote controller operation key based on the information from the MPU 50 received by the remote controller transmitter / receiver 5A. An MPU 5B that generates an operation key illumination signal to make it stand out, an LED driver 5C that converts the operation key illumination signal from the MPU 5B into a current signal, and a specific key of the operation key array 5D is selectively selected from the back surface by a current signal from the LED driver 5C. And a plurality of light emitting diodes LED for illumination.

The MPU 5 of the remote controller 5
B transmits the on / off state (user operation information) of the remote controller key button by the user to the MP of the reproducing apparatus via the remote controller transmitting / receiving sections 5A and 4A.
A program for automatically determining which operation key of the remote controller 5 is to be illuminated based on information from the MPU 50 of the playback apparatus body and a function of transferring the information to the U50 are built in.

FIG. 78 shows an example of a remote controller used for the reproducing apparatus (DVD player) shown in FIG. 76 or another recording / reproducing apparatus (DVD video recorder) not shown. Although basic operations can be performed with the operation key panel 4 shown in FIG. 76, various operations utilizing the features of the DVD are performed by the remote controller 5.

The function (or usage) of each key of the remote controller 5 shown in FIG. 78 will be described below.

[Function of Power Key (POWER) 5a] <1> Turns on / off the secondary side of the AC power supply circuit of the apparatus main body.

<2> When the power key is pressed while a disk is set in the apparatus, the type of disk (D
VD video ROM, DVD-RAM / DVD-RW, D
VD-R or CD). If the disc is a non-reproducible disc, a message to that effect is displayed.

<3> When the power key is pressed when the disc set in the apparatus contains the first play program chain (auto start code), the reproduction of this program chain is started automatically.

<4> When the power key is pressed while the power is on and the tray is open, the power is turned off after the tray is closed.

[Open / Close key (OPEN / CLOSE)
5g Function] <5> Open or close the disc tray.
If the open / close key is pressed during disc playback, the operation of the apparatus up to that point is terminated, and the disc tray is opened. During recording, the operation of this key 5g is invalidated.

<6> When the open / close key is pressed while the power is off and the tray is closed, the power is turned on and the disc tray is opened.

<7> When the open / close key is pressed in the disk tray open state, the disk tray is pulled into the apparatus main body. At this time, if a disc is set on the tray, the management information is read and the type of the set disc (DVD or CD, etc.) is displayed. If the disc is a non-playable disc, a message to that effect is displayed.

<8> When the open / close key is pressed in the disk tray open state, the disk tray is pulled into the apparatus main body. At this time, if no disc is set on the tray, for example, the characters "NO DISK" are displayed on the display of the operation key panel 4 or on the monitor TV
(On-screen display OSD).

<9> When the disc pulled into the apparatus main body by turning on the open / close key includes the first play program chain (auto start code), the reproduction of this program chain is automatically started.

[Function of Stop Key (STOP) 5e] <10> When pressed during disk playback or recording, playback or recording is stopped. When the button is pressed while stopped, the title number that has been played back or recorded (or the default setting title number) is displayed.

[Function of Playback Key (PLAY) 5c] <11> When pressed while the disc is set on the disc tray, the setting conditions at that time (default setting or screen aspect ratio set by the user) , Audio language, subtitle language, etc.).

<12> If the play key is pressed after the disc is set on the tray with the disc tray open, the tray is pulled into the main body of the apparatus, and the default title (or the title creator recorded on the DVD disc) is recorded. Playback from the specified title). However, if the disc contains the first play program chain (auto start code), execute it.

<13> Unless otherwise specified in the recording information of the disc, if the reproduction is performed until the end of the title, the reproduction operation ends.

<14> If the button is pressed while a chapter and title number are set on the setting screen while the memory setting screen is being displayed, memory reproduction is started from the set chapter and title number.

<15> When pressed when the random mode is set, the contents of the disc set on the tray are reproduced randomly.

<16> If the cell playback mode of the disc becomes VOBU still during playback, after the playback is completed to the end of the VOBU, the playback operation up to that point is canceled and the apparatus enters a still picture playback state.

[Function of Pause Key (PAUSE) 5d] <17> When pressed during reproduction of a program chain in a certain title, a still image is formed as a video frame of the currently reproduced program chain. If the pause key is further pressed in this state, the display switches to the still image of the next frame. Similarly, each time the pause key is pressed, the frame is switched in the time progress direction, and the frame is advanced by the number of times the key is pressed.

<18> During the above-mentioned still image or frame-by-frame playback, it is possible to play back sub-pictures but not sound.

<19> This still image / frame advance can be performed only in the program chain currently being reproduced, and after the frame advance to the last frame in the title, this key operation becomes invalid.

<20> When the VOBU still mode is set in the cell playback mode, this key operation is invalidated in the last cell of the still cell.

<21> When the reproduction key is pressed in the still image state by the key operation, the normal reproduction is resumed.

[Function of skip key (SKIP / two-step triangle mark with right vertical bar) 5f, part 1; in case of one sequential program chain title] <22> When pressed during playback, the next key in the title currently being played back Search for a chapter (or program) and play it. If there is no next chapter, this key operation is invalid. During the chapter search, the user can be notified of the search by blinking the search destination chapter number on the fluorescent tube display (or OSD) of the operation key panel 4.

<23> When pressed while stopped, the next chapter after the current chapter is selected. Here, when the reproduction key is turned on, the selected chapter is searched and reproduced.

Note that chapters (or programs) over two titles can be skipped during stoppage. For example, if the skip key is further pressed while the last chapter number of title 1 is displayed, the first chapter number of title 2 is selected. When the reproduction key is turned on, the selected chapter (chapter 1 of title 2) is searched and reproduced.

<24> If the button is pressed for a predetermined time or more in the stop state, the chapter number is incremented by one at a constant speed (if there is a next title, the chapter number is continuously changed from the current title to the next title). Possible). When the user presses the play key after releasing the pressed skip key, the chapter of the title at that time is searched and reproduced.

[Function of skip key (SKIP / two-step triangle mark with vertical bar) 5f, part 2; in case of random program chain title] <25> When pressed during playback, next to the chapter in the title currently being played back Search for a randomly selected chapter (or program) and play it. However, when the number of times of the random playback loop is the last and there is no next program chain in the title, this key operation is invalidated.

<26> When pressed during playback of a still image,
The selected chapter (or program) is searched, and a still image is reproduced at the beginning. However, if the still is set in the cell playback mode, the selected chapter is searched and the first still is played.

<27> It can be used to select a chapter number (program number) and a title number set on the memory setting screen (such as incrementing a number or moving a cursor forward).

<28> Can be used to page through menus.

[Function of skip key (SKIP / two-step triangle mark with left vertical bar) 5f, part 1; in case of one sequential program chain title] <29> When pressed during playback, the chapter (or program) currently being played back Search for the beginning of) and play it. When the button is pressed continuously, the chapter number is moved down by one to the chapter number 1.

<30> When pressed while stopped, the current chapter 1
The previous chapter is selected. Here, when the reproduction key is turned on, the selected chapter is searched and reproduced.

[0407] While stopped, chapters (or programs) over two titles can be skipped. For example, if the skip key is further pressed while the chapter number 1 of the title 3 is displayed, the last chapter number X of the title 2 is selected. Here, when the reproduction key is turned on, the selected chapter (chapter X of title 2) is searched and reproduced.

[0408] This chapter skipping over the title can be executed until the chapter 1 of the title 1 is reached.

<31> If the button is pressed for a predetermined time or more in the stopped state, the chapter number is decreased by one at a constant speed (until the title 1 becomes chapter 1). When the user presses the play key after releasing the pressed skip key, the chapter of the title at that time is searched and reproduced.

[Function of skip key (SKIP / two-step triangle mark with left vertical bar) 5f, part 2; in the case of random program chain title] <32> When pressed during playback, the chapter (or the title) in the title currently being played back is pressed. Search for the beginning of the program and play it back. However, the search destination can be set to the beginning of the currently reproduced chapter (program) even if it is continuously pressed.

<33> When pressed during playback of a still image,
The beginning of the chapter (or program) currently being reproduced is searched, and the still image is reproduced there. If the cell playback mode is still, the chapter currently being reproduced is searched and the first still is reproduced.

<34> It can be used to select a chapter number (program number) and a title number set on the memory setting screen (decrement of numbers, backward movement of cursor, etc.).

<35> Can be used to return to the menu page.

[Function of Menu Key (MENU) 5n] <36> When a disc is set on the tray,
Play back and display the root menu in the currently selected video title set recorded on the disc. If the disc is not set, an error (or warning) is displayed (OSD).

<37> If there is no root menu in the currently selected video title set, an error (or warning) is displayed.

<38> When the menu key is pressed to reproduce the menu during normal reproduction and the user exits the menu by operating the menu, the reproduction is resumed from the position reproduced before the menu reproduction or the position specified by the menu. .

<39> When pressed during route menu display, the state returns to the state before the route menu was displayed.

[0418] In the case of a DVD video RAM, a user menu is used. That is, if the root menu is not on the disc but there is a user menu, the user menu is used by operating the menu key.

[Function of Title Key (TITLE) 5p] <40> When a disc is set on the tray and a title menu is recorded on the disc, the title menu is displayed. If no disk is set, an error (or warning) is displayed (OS
D).

<41> If the title menu is not recorded on the disc set in the tray, the following operations can be performed while the disc is being played (or stopped).

[0421] That is, when the title key is pressed, the title number and the chapter number are displayed on a part of the screen (for example, the upper left corner). When a clear key described later, a title key is pressed again, or a predetermined time (for example, 3 seconds) elapses without a subsequent key operation,
The title number and chapter number are deleted from the screen.

When a desired title number (for example, “2”) is input from the numeric keypad while a title number (for example, “1”) and a chapter number (for example, “1”) are displayed on the screen, the above-described example is performed. Speaking of which, the screen display is "Title number: 2" and "Chapter number: 1"
Becomes If the playback key is pressed or left for a predetermined time (for example, 2 seconds) in this state, the playback starts from chapter 1 of title 2.

[0423] In this case, during the search for the title and the chapter, the search destination title number and the chapter number on the display section of the operation key panel 4 are blinked to notify the user that the search is being performed.

<42> After the title key is pressed during normal playback and the title menu is played back, if the title key is pressed again before the title selection is confirmed, the part played back before the title menu playback is started. Resume playback.

[Select key / cursor key (up / down)
Function of the downward triangle mark pair) 5q] <43> Used for item selection in the disc menu (menu called by the title key or menu key) and item selection in the setup menu. For example, when an item is selected by pressing the upward or downward triangle mark of the select key / cursor key, and the item includes several alternatives, the select key / selector is used to select the alternative. You can use the left or right triangle mark of the cursor key.

<44> In the case of pressing while the set value of any of the audio stream, the sub-picture stream and the angle is being displayed, pressing the upward triangle mark of this select key switches to the next stream or angle, and the downward triangle mark is displayed. Press to switch to the previous stream or angle.

<45> When the title key is pressed during display of the title number by the character generator, pressing the upward triangle mark of the select key switches to the next title, and pressing the downward triangle mark switches to the previous title.

[Function of End Key (END) 5end] <46> Used when notifying the device of the end of the user selection setting process (when exiting the processing loop for setting a reproducible angle).

While the multi-angle selection menu screen (not shown) is displayed, the select key / cursor key 5q or the ten-key 5t described later can be used for a cursor operation for selecting a desired angle. (Although not shown, mouse operation or touch panel operation is also possible.) [Function of confirm key (ENTER) 5s] <47> Used to confirm the item selected in the disc menu or the setup menu.

<48> It can also be used to determine the title number and chapter number on the memory screen.

[Function of return key (RETURN) 5r] <49> Title creator (software provider)
Is used when searching for a preset address on the disk. More specifically, the button is pressed when instructing exit from the menu or return (return) operation to a reproduction start (restart) point. Alternatively, it can be used when instructing an operation to return to a selection branch point of a user-selectable multi-story while reproducing one of the multi-story.

[Function of Audio Key (AUDIO) 5aud Part 1; During Playback] <50> When the audio key is pressed during playback (after checking the audio stream information recorded on the disc)
Using the character generator, the language name of the audio stream currently being reproduced (when the type of the audio stream is not music or the like but language) is displayed on the reproduction screen for a predetermined time (for example, 3 seconds) (OSD). When the audio key is further pressed during this display, the sound of the next audio stream number is reproduced. When this audio key operation is repeated, the sound (various languages) of the audio stream recorded in the title is sequentially and cyclically reproduced.

<51> By pressing the select key / cursor key 5q while the audio stream setting value is being displayed on the screen, the current audio stream can be switched to the next audio stream or the previous audio stream. it can. Then, the content of the switched audio stream is reproduced.

<52> If the numeric keypad is pressed while the audio stream setting value is being displayed on the screen, it is possible to switch to the audio stream of the number input by the numeric keypad. Then, the content of the switched audio stream is reproduced.

<53> If the clear key is pressed while the audio stream setting value screen is displayed, the audio stream setting value display can be deleted from the screen.

[Audio key (AUDIO) 5aud function 2; When stopped (displaying blue screen)] <54> When the audio key is pressed while stopped, the audio stream information recorded on the disc is checked. After)
Using the character generator, the language name (when the type of the audio stream is language) of the audio stream set for the currently selected title is displayed on the blue screen for a predetermined time (for example, 3 seconds).
When the audio key is further pressed during this display, the next audio stream number is set. When this audio key operation is repeated, audio stream sounds recorded in the title are sequentially set and displayed cyclically.

<55> When the select key / cursor key 5q is pressed while the audio stream set value blue screen is displayed, the current audio stream is switched to the next audio stream or the previous audio stream.

<56> If the numeric keypad is pressed while the audio stream setting value blue-back screen is displayed, the display switches to the audio stream of the number input by the numeric keypad.

<57> If the clear key is pressed during the display of the audio stream set value blue-back screen, the set value display of the audio stream is deleted from the screen.

[Subtitle key (SUBTITLE) 5sbt]
<1> During playback] <58> When pressed during playback, the language name of the currently played sub-picture stream is used by using the character generator (after checking the sub-picture stream information recorded on the disc). (When the type of the sub-video stream is language) is displayed on the playback screen for a predetermined time (for example, 3 seconds) (OSD). If the subtitle key is further pressed during this display, the sub-picture of the next stream number will be reproduced. When this subtitle key operation is repeated, the sub-video streams recorded in the title are sequentially and cyclically reproduced.

<59> By pressing the select key / cursor key 5q while the sub-picture stream setting value is being displayed on the screen, the next sub-picture stream of the currently set sub-picture stream or the immediately preceding sub-picture stream is displayed. You can switch to Then, the content of the switched sub-video stream is reproduced.

<60> By pressing the numeric keypad while the sub-picture stream setting value is being displayed on the screen, it is possible to switch to the sub-picture stream of the number input by the numeric keypad. Then, the content of the switched sub-video stream is reproduced.

<61> If the clear key is pressed while the screen for setting the sub-picture stream is displayed, the display of the set value for the sub-picture stream can be erased from the screen.

[Subtitle key (SUBTITLE) 5sbt]
<2> When the subtitle key is pressed during stoppage, when the subtitle key is pressed, the character generator is used (after checking the sub-picture stream information recorded on the disc). The language name (when the type of the sub-picture stream is language) of the sub-picture stream set to the currently selected title is displayed on the blue-back screen for a predetermined time (for example, 3 seconds). When the subtitle key is further pressed during this display, the next sub-video stream number is set. When this subtitle key operation is repeated, the sub-picture stream audio recorded in the title is sequentially set and displayed cyclically.

<63> The select key / cursor key 5
Pressing q switches to the next sub-video stream of the currently set sub-video stream or the previous sub-video stream.

<64> If the numeric key is pressed while the blue-back screen of the set value of the sub-image stream is displayed, the display switches to the sub-image stream of the number input by the ten-key.

<65> When the clear key is pressed while the blue-back screen of the sub-picture stream setting value is displayed, the setting value display of the sub-picture stream is erased from the screen.

[Subtitle on / off key (SUBTITLE
ON / OFF) 5v function] <66> Turns on / off the display of the sub-picture (subtitle).

<67> When the subtitle on / off key is pressed during video playback and sub-picture display (sub-picture display ON setting state), the sub-picture stream number set value is turned off and the set value is set by the character generator. After the display (OSD) for a predetermined time (for example, 3 seconds), the sub-picture is deleted from the screen.

<68> When the subtitle on / off key is pressed while the video is being reproduced but the sub-picture is not displayed (sub-picture display off setting state), the sub-picture stream number set value is turned on and the set value is set. Is displayed for a predetermined time (for example, 3 seconds) by the character generator, and then the sub-picture in the language of the set stream number turned on is reproduced (when the sub-picture is recorded on the disc being reproduced).

<69> When the subtitle on / off key is pressed while video playback is stopped, only the on / off setting of the sub-picture display can be executed.

<70> In the sub-video display off setting state, if the forced video output command is included in the sub-video stream having the same language code as the audio stream being reproduced, the sub-video corresponding to this command must be transmitted. Play and display on the screen.

[Function of Angle Key (ANGLE) 5 Ang] <71> When a title having an angle block composed of multi-angle information is selected and this angle block (angle section) is pressed, this key is pressed. The currently reproduced angle number is displayed by the character generator for a predetermined time (for example, 5 seconds) (OS
D). If the angle key is pressed again during this angle number display period, the same time point of the cell of the next angle number is searched, and reproduction is started from that point.

For example, a home run scene of a certain batter is reproduced at an angle number 1 of a multi-angle block (camera angle for viewing the pitcher's back from the center side), and the bat is played five seconds after the reproduction start time of the angle block cell. Meet the ball, and 3 seconds later the hit ball pierces the light stand. When the user who wants to view the home run scene at another camera angle presses the angle key and presses the angle number 2, the playback start time point of the angle block cell is searched, and the angle 2 (for example, the first base infield stand) is searched therefrom. Playback of the home run scene at the camera angle (viewing the entire ground from the side) is resumed.

When the angle key is further pressed during the angle number display period, the recorded angle numbers are sequentially switched cyclically, and the reproduction of the selected angle is resumed.

<72> When an angle number is displayed on the screen by the character generator, a desired angle number can be directly selected by operating the ten keys (an angle number that does not exist in the angle block being reproduced is input by the ten keys). Key input is invalid when the key is pressed). Alternatively, the select key / cursor key 5q
Can also raise and lower the angle number.

<73> When an angle is changed during still image reproduction in a cell of a multi-angle block,
A similar reproduction time point search is performed, and the searched still image of another angle is reproduced.

For example, it is assumed that a still image of a certain automobile is reproduced at an angle number 1 (a camera angle viewed from the front). When the user who wants to view this car at another camera angle presses the angle key and presses the angle number 2, the playback start time point of the angle block cell of the angle number 2 is searched, and the angle 2 (for example, the right side) is searched therefrom. The still image at the camera angle viewed from behind is played.

When the angle key is further pressed during the angle number display period, the recorded angle numbers are sequentially switched cyclically, and the still image of the selected angle is reproduced.

<74> Even if an angle key operation is performed during the reproduction of a cell other than a multi-angle block, the angle setting (angle number switching) can be rejected.
Angle setting (angle number switching) is accepted only when a multi-angle block cell exists in the title being reproduced.

<75> If there is a multi-angle block cell in the selected title, angle setting (angle number switching) can be accepted even during stop.

[Function of fast forward (FWD) key / fast reverse (REV) key (double triangle pointing left / right) 5j] <76> When the fast forward key or fast reverse key is pressed during movie playback or still picture playback Fast forward or fast reverse playback is performed earlier than normal playback (for example, about twice as fast as normal playback). (Moving speed is doubled for moving images, and for still images, the frame-by-frame switching cycle is shortened by half.) If the button is pressed further, it will be faster than normal playback (for example, about 8 times that of normal playback). Fast reverse playback is performed. (In the case of a moving image, the motion becomes 8 times faster, and in the case of a still image, the frame-by-frame display switching cycle is shortened to 1/8.) In addition, in the case of fast forward and fast rewind, the main image video is displayed at 2 times speed. Thus, it is possible to reproduce an MPEG I picture + P picture, and to reproduce an I picture at a multiple speed higher than that.

At this time, audio reproduction can be performed as follows. That is, in the case of 2 × speed reproduction,
Decode the audio data with twice the clock of normal playback,
Decodes double speed audio data. In the case of the multiple speed, the audio data at the jump speed (from one I picture to the next I picture) is partially reproduced by normal reproduction, thereby performing the audio decoding at the multiple speed.

<77> When the play key is pressed, the fast forward playback or the fast reverse playback is canceled, and the playback returns to the normal speed.

<78> Fast-forward or fast-reverse playback using the fast-forward key or fast-reverse key is performed only in the program chain that is being played back when the key is operated.
After fast-forwarding to the end of the program chain or rewinding to the beginning of the program chain, the program chain is paused.

<79> During fast forward or fast reverse playback with the fast forward key or fast reverse key, audio (audio stream) and subtitle (sub video stream)
Playback can be automatically prohibited.

Note that sound may be reproduced while changing the reproduction pitch in accordance with the fast-forward speed. If the moving image is, for example, a recorded movie of a marathon event and the subtitle is used to display the elapsed time from the start of the event, the subtitle may be played back during fast forward or fast reverse playback.

<80> The cell playback mode is set to V during fast forward or fast reverse playback using the fast forward key or fast reverse key.
When the OBU still has been reached, the fast-forward or fast-reverse operation is canceled and the still image reproduction is started.

[0469] The above "when the cell playback mode is VOBU still" is a still (VOBU still) in video object unit units, so that when the fast forward key (or fast rewind key) is pressed, the next (or fast forward) key is pressed. The VOBU (previous) is reproduced, and when the reproduction of the VOBU ends, the still becomes still. However, if the fast-forward key (or fast-reverse key) is further pressed during VOBU playback, the VOBU
The BU is fast-forwarded (or fast-returned) and then stops as a VOBU still.

[Function of display key (DISPLAY) 5u] <81> When this key is pressed during stop or during playback, the display corresponding to the contents of various key operations at that time is displayed (display on the operation key panel 4 of the apparatus body). Division and / or TV
(On the screen of the monitor 6).

[Functions of Numeric Keypad ([0] to [9] & [+10]) 5t><82> During normal reproduction, it can be used to specify a chapter number in the current reproduction title. At the same time as the ten-key input is confirmed (the above-mentioned confirmation key operation), a search operation for a chapter of a designated number is started (this search can also be made by a title number key T described later).
Non-existent chapter numbers will not be accepted.

<83> When stopped, it can be used to specify a chapter number in the selected title. At the same time as the numeric keypad is confirmed, the search operation for the chapter with the specified number starts (this search is performed by the title number key T
Also possible). Non-existent chapter numbers will not be accepted.

<84> When a title including a multi-angle block is being reproduced (angle cell is being reproduced) and the angle number is being displayed, the angle number input with the numeric keypad is directly selected. However, input of non-existent angle numbers is not accepted.

<85> While the disc menu is displayed, if an item in each disc menu screen is numbered, the item corresponding to the number input by the ten keys is selected and executed. However, entry of an item number that does not exist is not accepted.

<86> When setting a parental lock from the setup menu, a ten-key can be used to input a password.

[Function of Clear Key (CLEAR) 5cr] <87> Used to cancel the key input of the title number or the chapter number.

<88> This is used to cancel the input of a personal identification number for changing the parental level.

<89> This is used for releasing a repeat mode described later.

<90> This is used to cancel an input number at the time of operating a memory setting screen described later.

<91> This is used for releasing a memory reproduction mode described later.

<92> This is used for releasing a random reproduction mode described later.

<93> This is used to cancel the number display of each of the title, audio (audio stream), subtitle (sub-picture stream), and angle.

[Function of Repeat Key (REPEAT) 5k] <94> Used for repeat setting of chapters or titles (only titles of one sequential program chain).

<95> Each time this key is pressed, the repeat mode is sequentially switched cyclically in the order of “chapter repeat” → “title repeat” → “repeat off” → “chapter repeat”.

<96> If the repeat key is pressed during the AB repeat operation described later, the AB repeat operation is cancelled,
You can move on to chapter repeat.

<97> When the repeat section is deviated by the operation of the fast forward key, the fast reverse key, or the skip key,
The repeat operation is released.

<98> If there is a multi-angle block in the repeat section, angle change is allowed (the angle key functions even in the repeat mode).

[AB Repeat Key (AB REPEAT) 5k
<99> Used to set the start point and end point of the two-point repeat operation (however, only the title of one sequential program chain).

<100> The start point (A) is set by pressing this key the first time, and the end point (B) is pressed by pressing the key the second time.
Is set. The set start point is searched at the same time when the end point is set, and thereafter, the section AB is repeatedly reproduced.

<101> The repeat between AB can be canceled by the clear key operation.

<102> During the repeat operation between AB, A-
When the playback is changed to a title or chapter other than B, or when the repeat key is pressed, A
-The repeat between B can be canceled.

<103> When the fast forward key, the fast rewind key, or the skip key is operated to leave the AB repeat section, the AB repeat operation is cancelled.

<104> By pressing the clear key, fast forward key, fast rewind key, or skip key before setting the repeat end point (B), the AB repeat operation can be canceled.

<105> If the title ends before reaching the end point (B) during AB repeat playback, AB
The inter-repeat operation is canceled.

<106> In the multi-angle block section, the setting of the start point (A) of the AB repeat can be invalidated. (The beginning of the multi-angle block section can be used as the start point of the repeat between A and B. For example, a camera angle scene with an angle number 1 of a certain multi-angle block is set to A in the draft block.
-It is possible to repeat between B. <107> If a multi-angle block arrives during the AB repeat reproduction, the AB repeat operation can be canceled.

<108> The start point (A) and end point (B) set by the AB repeat key point to the head (start address) of the corresponding image data (group of pictures) immediately after the setting. .

[Function of Memory Key (MEMORY) 5m] <109> When this key is pressed when the tray is closed and a disc is set, a memory setting screen is displayed (OSD). If this key is pressed during the display of the memory setting screen, the state returns to the state before the display of the memory setting screen.

<110> The memory setting method is performed by sequentially inputting the number of the title and the chapter to be reproduced in the memory while the memory setting screen is displayed, using the numeric keypad and the title number (T) key described later.

<111> When the cursor on the display screen is moved with the select key / cursor key and the above-mentioned memory setting input is made with the memory number at the cursor position, the title and the memory set with the memory numbers after that memory number are set. The chapter number shifts to the next memory number one by one.

For example, “Title 1 / Chapter 3” and “Title 2 / Chapter 1” have already been set in memory number 1 and memory number 2, and memory number 3
Thereafter, it is assumed that there is no setting. Here, if the cursor is moved to the memory number 1 and “title 2 / chapter 5” is set, the contents previously set to the memory numbers 1 and 2 are shifted to the memory numbers 2 and 3. As a result, the setting contents of the memory numbers 1, 2, and 3 are “title 2 chapter 5”, “title 1 chapter 3”, and “title 2 chapter 1”, respectively.

<112> When the cursor on the display screen is moved by the select key / cursor key and the clear key is operated by the memory number at the cursor position, the contents set by the memory number are cleared. The contents set by the memory numbers subsequent to the memory number are moved up to the immediately preceding memory number.

For example, “Title 2 / Chapter 5”, “Title 1 / Chapter 3” and “Title 2 / Chapter 1” are set in memory number 1, memory number 2 and memory number 3, respectively. It is assumed that there is no setting after number 4. Where memory number 2
When the cursor is moved to and the clear key is operated, the contents previously set to memory number 2 “Title 1 ・
"Chapter 3" is cleared, the content previously set to memory number 3 is shifted to memory number 2, and the content previously set to memory number 4 (unset) is shifted to memory number 3. As a result, the setting contents of the memory numbers 1, 2, and 3 are “title 2 chapter 5”, “title 2 chapter 1”, and “no setting”, respectively.

It is not always necessary to limit the number of memory settings (upper limit of memory number). However, due to the necessity of actual software and the problem of physical memory capacity of the device, the maximum number of memory settings Is, for example, 3
It is chosen to be around 0. (Even if 99 titles are recorded on one disc, from the standpoint of a general user,
The maximum number of memory settings does not always need to be 99. On the other hand, in a business device, there is a possibility that a memory setting request may be issued for a plurality of chapters in each of the 99 titles. In this case, the maximum number of memory settings may be 99 or more. <113> If the play key is pressed while the memory setting screen is displayed, the memory playback is started in the order in which the memory settings are registered.

For example, “Title 2 / Chapter 5”, “Title 1 / Chapter 3” and “Title 2 / Chapter 1” are set in memory number 1, memory number 2 and memory number 3, respectively. No setting is made after number 4, and if the play key is pressed while the memory setting screen is displayed in that state, the memory is played as follows. That is, “Title 2 / Chapter 5” is reproduced first, then “Title 1 / Chapter 3” is reproduced, and finally “Title 2 / Chapter 1” is reproduced. When the reproduction of “Title 2 / Chapter 1” ends, the reproduction stops.

<114> By pressing the clear key during the memory reproduction, the memory reproduction mode can be released and the normal reproduction can be directly performed.

<115> The contents set on the memory setting screen can be cleared by the following method.

(A) While the memory setting screen is being displayed, all of the set title numbers and chapter numbers are deleted using the clear key.

(B) When the disc is ejected outside the apparatus by opening the tray. (However, in the case of a business device, a nonvolatile internal memory may be provided inside the device, and even when the disk is ejected, the memory settings may be stored together with a code specifying the disk.) (RANDOM) 5 rm function] <116> If the selected title is one sequential program chain, random playback of chapters within the title is performed.

<117> If this key is pressed during playback, random playback starts from the chapter next to the currently played chapter. (For example, if the random key is pressed during the reproduction of the chapter 2 of the title including the chapters 1 to 9, the random reproduction is performed when the reproduction of the chapter 3 is started. For example, the random reproduction is performed as in the chapters 5, 3, 7, 1, and 9). Each chapter is played.

<118> If this key is pressed while stopped, random reproduction is started from the next time the reproduction key is pressed to start disk reproduction.

<119> After random playback of all chapters in the selected title is completed, playback is stopped. During this random reproduction, the reproduction of the same chapter number is not normally performed, but the reproduction order is merely randomized. However, random playback including overlapping playback may be enabled, or random playback may be repeated in an infinite loop unless the power is turned off or the stop key is pressed.

<120> By pressing the clear key during random reproduction, the memory reproduction mode can be canceled and the normal reproduction can be directly performed.

<121> Pressing the random key during random playback cancels the random playback mode.

[Function of Slow Key (SLOW) 5sw] <122> When the slow key is pressed during playback, slow playback is performed in the forward direction at, for example, 1/2 speed. 1
/ 2 ”or a number / symbol corresponding thereto.

<123> Subsequently, when this key is pressed, slow reproduction is performed in the forward direction at, for example, 1/8 speed. If you press it further, 1/16 → 1/8 → 1/2 → 1/8 → 1/1
The slow playback speed is switched periodically like 6 ...
The slow display on the video image being reproduced also changes correspondingly.

<124> If the slow key is pressed while the playback operation is paused (by operating the pause key), for example, 1/16 slow speed playback is performed. Subsequent slow keys are the same as above.

<125> If the reproduction key is pressed during the slow reproduction, the normal reproduction is started.

<126> If the title is changed during the slow playback, the slow playback mode is canceled and the operation shifts to the normal playback.

<127> The slow key operation is invalidated during VOBU still playback in the cell playback mode.

<128> Normally, audio is not reproduced during slow reproduction, but it may be reproduced by changing the pitch of audio data according to the reproduction speed.

[LAST PLAY KEY (LAST PLAY) 5tp
<129> When the last play key is pressed after playback (including a power failure) is interrupted by turning off the stop key or the power key during playback of the disc, from the interrupted position or a position slightly before the interrupted position. Start playback.

<130> When the disc tray is opened after the stop, the memory at the reproduction interruption position can be cleared and the last play key can be invalidated. If the memory at the playback stop position is not cleared and saved in the internal memory of the device, the playback can be started from the position where the playback was interrupted or slightly before the interrupted position by pressing the last play key, even after the disc has been inserted or removed from the tray. Can be resumed.

<131> In the case where the disc has the first play program chain (auto start) and the reproduction is interrupted by turning off the power,
This last play key is invalid. (That is, playback starts from the first play program chain.)

<132> In the case where the reproduction is interrupted during the reproduction of the random program chain, if the number of random reproduction loops is stored in the apparatus, pressing the last play key causes the position to be interrupted or slightly before the interrupted position. The reproduction can be resumed from the position of.

[Functions of Setup Key (SETUP) 5y] <133> Various device settings (screen size / aspect ratio setting, angle mark setting, parental lock setting, desired audio language type setting, desired This key is used to call a setup menu for performing subtitle language type setting, desired menu language type setting, auto angle mode setting, etc., and is valid only during playback stop.

<134> When this setup key is pressed while the setup menu is displayed, the display of the setup menu is turned off, and the playback is stopped (blue screen).
Becomes

[Function of Title Number Key (T) 5tt] <135> At the time of specifying a title number / chapter number for performing a search operation or a memory reproduction operation, the number input on the numeric keypad before pressing this key is changed to the title. The number is set as a number, and the number input using the numeric keypad after pressing this key is set as the chapter number.

<136> If this title number key is pressed before the random key is pressed, random playback of a title is performed instead of random playback of a chapter. For example, the titles 1, 2, 3,
4 and 5 are recorded, and when the random key is pressed after the title number key is pressed (when the playback key is further stopped, a random number in title units in the order of titles 2, 5, 1, 4, 3) is obtained. Playback starts.

[Function of Remote Controller Switching Key 5x] <137> This is used when the remote controller 5 of FIG. 78 is switched to the operation of a device (for example, an AV television or a VCR) other than the DVD video recorder of FIG. Alternatively, one DVD video player and one D
When the DVD video player and the DVD video recorder are individually operated by one remote controller 5 when the VD video recorder is installed at the same time, the remote controller switching key 5x can be used to switch the operation.

The functions of the keys described above are the same as those of the DVD video player (playback-only device), but the remote controller 5 for the DVD video recorder further includes keys having the following functions.

[Function of Recording Mode Key 5rmd] <138> When this key is pressed while recording is stopped or during recording pause, every time the key is pressed, MPEG2 / 8Mb
ps → MPEG2 / 6Mbps → MPEG2 / 4Mbp
s → MPEG2 / 2Mbps → MPEG1 / 2Mbps
→ MPEG1 / 1Mbps → Automatic image quality mode → MPEG
The recording mode is cyclically switched, as in 2/8 Mbps →...

[0532] If the quality of NTSC broadcast studios is desired, the recording time will be shorter, but MPEG2 / 8Mb
Select ps. S-VH by extending the recording time a little more
If you want to obtain an image quality higher than the standard mode of S-video,
Select EG2 / 6 Mbps or MPEG2 / 4 Mbps. If you want to extend the recording time and obtain an image quality of 3x mode or more of S-VHS video, use MPEG2 / 2
Select Mbps. Normal VHS (or video CD)
If the image quality is sufficient, the recording time can be further extended by selecting MPEG 1/2 Mbps or MPEG 1/1 Mbps.

[Function of Recording Key 5rec] <139> The DVD-RW disc (or DVD-R disc) 10 set in the apparatus main body has free space, and the initial setting for recording (MPEG2 / MPEG)
If the button is pressed when the discrimination of 1 and the setting of the average bit rate of recording have been completed, the recording is started.

When the user presses the recording key without performing the initial setting, the default setting is automatically adopted as the initial setting, and recording is started.

[Function of display mode key 5dm] <140> Recordable DVD-RW disc (or D
When this key is pressed with the VD-R disc (10) set in the apparatus main body, each time the key is pressed, the OSD display (or the display on the operation key panel 4 of the apparatus main body) is switched as follows: (1) Recording source (TV channel number or AV input number) + current date and time; (2) current title set number, recorded time, remaining recordable time + average recording rate at that time; (3) display off Note that the above (1) and (2) may be displayed simultaneously.

[Function of OSD Key 5osd] <141> If this key is pressed while the MPU 50 shown in FIG. 76 is outputting character (or image) data for OSD display, an OSD display not desired by the user will be monitored. Deleted from the screen. Press this key again,
The OSD data output from the MPU 50 is displayed on a monitor screen.

[Function of Timer Key 5tme] <142> When this key is pressed, the MPU 50 in FIG.
Causes a timer reservation menu (including a table for specifying a desired recording channel, recording reservation date and time, recording mode, average recording rate, etc., for each reserved program) to be output to a monitor screen (not shown) (OSD). The program reservation setting in this menu can be performed by using the cursor keys 5q, the ten keys 5t, the enter key 5s and the like.

<143> After a timer reservation operation is performed, a recordable DVD-RW disc (or DVD-RW
When the timer key 5tme and the recording key 5rec are pressed simultaneously with the R disk (10) set in the apparatus main body, the timer recording mode (timer recording standby state).
to go into.

[Function of Menu Edit Key 5edt] <144> When this key is pressed, the MPU 50 in FIG.
Enters the user menu editing mode.

[0540] Fig. 79 shows an example in which, when normal playback is performed by the playback device in Fig. 76, only the keys of the remote controller 5 in Fig. 78 that can be operated by the user are lit. In this example, a play key (PLAY), a pause key (PAUSE), a stop key (STOP), a fast forward key (FF), a fast rewind key (REW), a chapter skip key (SKIP), a title key (TITL)
E), backlight of menu key (MENU) and on-screen on-off key (OSD) (L in FIG. 77).
Only ED) is lit, and only these keys are clearly visible. In this case, the user can know that the only keys that can be operated at that time are the keys that stand out in the backlight. For this reason, the user does not needlessly press the key that does not respond to the pressing of the key (or an operation prohibition display indicating that the key operation cannot be performed) appears in the dark.

FIG. 80 is a view for explaining an example in which only keys that can be operated by the user of the remote controller shown in FIG. 78 are lit when a menu operation is being performed on the playback apparatus shown in FIG.

For example, when the menu key MENU among the operable keys shown in FIG. 79 is turned on, the MPU 5B of the remote controller 5 sends a user command to enter the menu to the MPU 50 of the playback apparatus main body. Then, MPU5
0 sets the device operation state to the menu selection mode, retrieves the user operation control information (UOP in FIG. 75) at that time from the disk 10, and determines a key whose user operation is not prohibited. This determination result is transferred to the MPU 5B of the remote controller 5. Then, MPU5
B determines a key that can be operated by the user at that time, and generates a signal to turn on the LED of the corresponding backlight. As a result, as illustrated in FIG. 80, only the keys related to the menu operation, that is, the select key / cursor key (or the cross key), the enter key (ENTER), and the return key (RETURN) are backlighted so as to stand out. Illuminated by LED.

FIG. 81 is a view for explaining an example in which, in the reproducing apparatus of FIG. 76, an icon of the remote controller 5 in which keys other than keys that can be operated by the user is displayed as a ghost is displayed on the monitor screen.

In FIG. 81A, a remote controller icon in which only keys operable by the user at that time stands out is displayed on the currently reproduced video screen by OSD.

In FIG. 81 (b), in addition to the display window of the video currently being played back, the remote controller / display in which only keys operable by the user at that time stand out.
The icons are displayed on the OSD, and the operation panel icons of the playback apparatus main body on which only the keys that can be operated by the user at that time are displayed are also displayed on the OSD.

FIG. 82 is a flow chart for explaining an operation example from when the optical disc 10 is set in the reproducing apparatus (DVD player) shown in FIG. 76 until the reproduction processing is started.

When the optical disk 10 is set in the disk drive 30 in FIG. 76 (step ST10), the MPU
50 reads information of the lead-in area 27 (step ST12) and reads volume information of the disk 10 (step ST14). From the volume descriptor in the read information, the MPU 50 identifies whether the disc 10 is a DVD disc.

For example, based on the physical reflection conditions and the information on the lead-in area, the disc 10 is determined not to be a DVD disc (NO in step ST16), but to be a CD (YES in step ST18), and the process of reproducing the CD is started.

[0549] The read information indicates that the disc is a DVD.
If the MPU 50 includes the information indicating that the disc is a video disc (YES in step ST16), the MPU 50 reads the record in the root directory in FIG. 4 (step ST2).
0).

If the disc 10 set in the disc drive 30 is neither a DVD nor a CD (No in Step ST16, No in Step ST18), the reproducing operation of the apparatus shown in FIG. 76 ends.

[0555] Next, the MPU 50 searches the read root directory record for a subdirectory in which DVD video data (data of the video title set VTS) is stored (step ST22).

If the searched subdirectory is not the VTS directory (NO in step ST24) and another subdirectory is in the root directory record (step ST26 YES), the subdirectory is searched again and the searched directory is returned to the VTS directory. Is checked (step ST22).
To ST24). If the VTS directory is not found and there are no other subdirectories (No in step ST26), the reproducing operation of the apparatus in FIG. 76 ends.

If the searched subdirectory is a VTS directory (YES in step ST24), MP
U50 reads the record in the VTS subdirectory (step ST28).

[0554] Next, the MPU 50 searches each file of the VTS from the read VTS subdirectory record (step ST30). The searched file is a management data file VIDEO_TS. Although the file is not an IFO (NO in step ST32), the file is
If it is not the last file in the subdirectory, that is, if there are other files in the VTS subdirectory (No in step ST34), the file is searched again and the searched file is VIDEO_TS. It is checked whether the data is an IFO (steps ST30 to ST3).
2). VIDEO_TS. If the IFO file is not found and there is no other file (Yes in step ST34), the reproduction operation of the apparatus in FIG. 76 ends.

[0555] The retrieved file is a management data file VIDEO_T containing the video manager information VMGI.
S. If it is an IFO (Yes in step ST32), MP
U50 shifts to the normal reproduction processing of the DVD disk 10.

FIG. 83 is a flow chart for explaining an example of normal reproduction in the reproducing apparatus of FIG.

First, the MPU 50 controls the management data file VIDEO_TS. The video manager information VMGI is read from the IFO (step ST100).

Next, the MPU 50 sets the number N of reproducible title sets and other various settings in accordance with the description contents of the video manager information VMGI (FIG. 7) (step ST102), and the video manager menu (FIG. 49). (Step ST104).

Subsequently, MPU reads the title search pointer table TT_SRPT (step ST).
106) Construct and display a video manager menu so that the user can select a title set to be reproduced.

[0560] When the user operates the remote controller 5 shown in FIG.
When a desired reproduction title is selected by operating the cursor key and the enter key, a reproduction title number M (M is 1 or more and the number of reproducible title sets N or less) corresponding to the selected title is determined (step ST10).
8).

When the playback title number M is determined, the MPU
50 is a title search pointer table TT_SRP
The address of the corresponding video title set information VTSI is determined from T (step ST110), and the video title set information management table VTSI_MAT is read from the disk 10 (step ST112).

Subsequently, the MPU 50 determines from the video title set information management table VTSI_MAT (FIG. 33)
The information (the number of streams, attributes, etc.) relating to the video, audio and sub-picture of the title to be reproduced is read, and FIG.
Then, the video decoder (MPEG decoder) 58, audio decoder 60, and sub-picture decoder 62 are initialized (step ST114).

[0563] Thereafter, MPU 50 executes the process of the video title set menu (Fig. 49) of the title to be reproduced (step ST116). From this video title set menu, the user can select, for example, English as the playback audio (audio) and Japanese as the playback subtitle (sub-picture).

FIG. 84 is a continuation of the flowchart in FIG. First, the MPU 50 checks the part-of-title search pointer table information PTT_S of the title to be reproduced.
RPTI (FIG. 34) is read (step ST11)
8).

[0565] Next, the MPU 50 describes the contents of the PTT_SRPTI (Fig. 3) so that the user can select n playback title units (corresponding to chapters in the case of a movie).
The VTS menu is processed according to 5) (step ST120).

[0566] When a specific playback title unit is menu-selected by the user, the MPU 50 sets the corresponding part-of-title search pointer table PTT_SRPT.
Is read (step ST122).

[0566] Thereafter, the program chain number PGCN and the program number PGN of the reproduction title unit to be reproduced are set from the contents of the read PTT_SRPT (Fig. 37) (step ST).
124).

Next, MPU 50 reads the program chain information table PGCIT (FIG. 38) to be reproduced (step ST126), and stores all the data (FIGS. 39 to 40) in the work memory (step ST12).
8). Thus, the program chain PGC to be reproduced is determined.

If the playback program chain PGC is determined, it is checked whether the PGC is a parental block PGC (step ST130). This check is performed in the program chain information table PGC to be reproduced.
This is performed according to the description (bit contents of the block mode) of the program chain category VTS_PGC_CAT (FIG. 4) included in the program chain search pointer PGCI_SRP in the IT (FIG. 38).

If it is a parental block (step S
T130 Yes) A predetermined parental process is performed (step ST132). If it corresponds to the parental operation, that is, if the reproduction of the block is prohibited (Yes in step ST134), the reproduction program chain number PGCN is incremented by one, and the reproduction is shifted to the reproduction of the next PGC (step ST136). Then, it is checked again whether the shifted PGC corresponds to the parental operation (step ST134). The above processing (steps ST134 to ST136) is repeated until the program chain number does not correspond to the parental.

If the program chain does not correspond to the parental operation (NO in step ST134), the program chain number PG corresponding to the program chain
Program chain information PGCI corresponding to CN (FIG. 2)
5) is taken out (step ST138). afterwards,
Various initial settings such as determination of the color palette of the sub-picture and determination of the reproduction audio channel are performed (step ST14).
0).

FIG. 85 is a continuation of the flowchart in FIG. First, the MPU 50 reads the cell address table information VTS_C_ADT (FIG. 61) of the title to be reproduced (step ST142). And VTS_C
All data of _ADT (FIGS. 62 to 63) are stored in the work memory (step ST144).

Next, the MPU 50 operates the command table PGC_CMDT (FIG. 7) of the program chain to be reproduced.
0) is taken out (step ST146), and a pre-command (FIG. 22) for the program chain PGC is executed (step ST148).

Subsequently, the MPU 50 stores the program number, the cell ID number and the like in the work memory (step ST1).
50), it is determined whether the cell to be reproduced is to be reproduced randomly or normally (step ST152).

When Random Playback is Performed (Step ST
152 Yes) is a random number R using a random function.
Is generated (step ST154), and the cell having the cell ID number corresponding to the generated random number R is reproduced (step ST156).

If the playback is not random playback (step ST1)
In the case of No. 52), normal cell reproduction processing is performed (step ST158). In this cell playback processing, V in the video title set cell address table VTS_C_ADT is
Cells having ID numbers corresponding to TS_CPI # 1 to VTS_CPI # n (FIG. 61) are sequentially reproduced.

[0577] When the cell reproduction is completed, the MPU 50 sets the cell still time written in the cell category C_CAT (Fig. 28) of the cell (step ST160), and executes the cell still for the set time (step ST16).
2). For this cell still, the screen of the last frame of the cell that has just been reproduced can be used.

When the cell still execution (still image display) for the set time is completed, a predetermined post command (FIG. 2)
2, FIG. 70) is executed (step ST164), and the program chain number PGCN is updated (step S164).
T166).

If the updated program chain number is not zero, that is, if there is still a program chain to be reproduced (No in step ST168), FIG.
Jump to step ST130 of step ST130 until step ST130 to step ST130 are completed until all PGCs have been reproduced.
The process of 166 is repeated.

If the updated program chain number is zero, that is, if all the program chains have been reproduced (YES in step ST168), FIGS.
The normal reproduction process ends.

Step ST156 or ST1 in FIG. 85
The cell reproduction process at 58 is performed as shown in FIG.

In the flowchart of FIG. 86, when the cell reproduction is started (Yes in step ST400), the MP
U50 determines a reproduction start address from the contents of program chain information PGCI (FIGS. 25 to 30) (step ST404). Thereafter, MPU 50 sets a data read command to disk drive 32 (step ST406).

[0583] Cell playback is not started (step ST400).
No), when the VOBU is not continuous (step S)
(No at T402), the processing of steps ST404 to ST406 is performed. Instead of starting cell playback (step ST4)
00 No), when VOBUs are continuous (Yes in step ST402), steps ST404 to ST406
Is skipped.

[0584] Subsequent to the above processing, MPU 50 loads the first navigation pack of each VOBU into the work memory (step ST408), and sets synchronization information and the like (step ST410).

[0585] Further, MPU 50 processes PCI packet 116 in the navigation pack (step ST412). The PCI packet 116 (FIG. 17) includes the reproduction control information PCI (FIG. 18).
Contains general PCI information GI_GI (FIG. 19). In step ST412, the MPU 50 determines
Highlight processing is executed using the highlight information HLI in the PCI (FIG. 18), and an operation of prohibiting a specific user operation is executed using the user control information VOBU_UOP_CTL in the PCI_GI (FIGS. 19 and 20).

Here, as the highlight processing, for example, a sub-picture frame surrounding a selectable item displayed on a menu is highlighted in a color such as green, and when the user decides to select the item, the color is changed to red. There are processes such as changing.

The above-mentioned user operation prohibition operation includes:
For example, even if the user presses the angle key 5ang of the remote controller 5 in FIG. 78, the angle switching operation is prohibited and a mark indicating that the key operation is not possible is displayed on the monitor TV.

At the same time, the process of turning off the backlight LED of the angle key 5ang of the remote controller 5 and notifying the user that this angle key is invalid at that time is also executed in conjunction with the user operation prohibition.

[0589] After the processing of step ST412 is completed, MPU 50 checks whether or not it is a VOBU still (step ST414).

When performing VOBU still (for example, cell playback information C_PB of program chain information PGCI)
If the cell playback mode of I (FIG. 28) is "1" (step ST414 YES), the MPU 50 waits until the playback of the VOBU ends (step ST416).
Since the playback time of one VOBU is about 0.4 to 1.2 seconds, the standby time is not very long.

[0591] When the reproduction of the VOBU ends, the VOBU still process starts at the end of the reproduction (step ST4).
18). For example, the last frame appearing in the VOBU is reproduced as still. This still playback is continued until the user presses the remote controller 5 or the playback key on the operation key panel 4 of the apparatus main body (FIG. 76).

[0592] If the user has not pressed the pause key 5d in step ST414, or if the user presses the play key 5C during the VOBU still process (step ST414).
No), the MPU 50 checks whether it is the last cell including the VOBU (step ST420).

[0593] If not the last cell (step ST42)
(0 No) Return to step ST408, fetch the navigation pack 86 of the next VOBU, and
08 to ST420 are repeated. If the end of the cell (step ST420 YES), the VOBU at that time
Waits until the reproduction of is completed (step ST42).
2).

Thereafter, the cell still process is started, and the last frame of the cell is reproduced as a still until the time set by the cell still time (FIG. 28) in the program chain information PGCI elapses (step ST42).
4). This cell still processing ST424 is performed in ST ST of FIG.
162.

After executing the cell still, the cell command (FIG. 73)
If there is any one of the navigation commands shown in (1) (Yes in step ST426), the command is executed, and the process returns to FIG. If there is no competing command (NO in step ST426), the process returns to FIG. 85 as it is.

When the 8-bit content of the cell still time in FIG. 28 is 00000000b, it is specified that the still is not still. When it is 11111111b, a still without time limit is specified.
In the case of 1111110b, still display of a length in which the decimal number (1 to 254) specified in this content is displayed in seconds is specified.

The cell command number indicates the number of a cell command (one of the navigation commands in FIG. 73) to be executed at the end of the reproduction of the cell.

FIG. 87 is a flow chart for explaining an example of the navigation pack process (NV pack process ST412) of FIG.

First, the MPU 50 in FIG. 76 has a title playback type TT_PB_TY (FIG. 11), a video object unit user operation control VOBU_UOP_CTL.
(FIG. 20) and program chain user operation control P
GC_UOP_CTL (FIG. 30) is stored in the work memory (step ST500).

Next, the MPU 50 checks the stored TT_P
B_TY, VOBU_UOP_CTL and PGC_U
A UOP of bit “1” (= 1b) in OP_CTL is detected (step ST502).

If at least one UOP of bit “1” is detected, that is, if there is at least one key whose user operation is prohibited at that time (YES in step ST504), as shown in FIG. A remote controller icon in which only usable keys stand out is displayed on the monitor 6 by OSD (step ST506).

Further, in the operation key panel 4 with the backlight in FIG. 76, the part of the operation key which is not UOP = 1b is turned on or illuminated (step ST508).
Data indicating what operation keys (keys that can be used at that time) other than 1b are transferred to the MPU 5B of the remote controller 5 in FIG. 77 (step ST51).
0). Thereby, for example, as illustrated in FIG.
Of the various operation keys of the remote controller 5, only the keys that can be used at that time are illuminated so as to stand out. In this case, even if a non-illuminated (unusable) key, for example, an angle key ANGLE is turned on, M
PU 50 does not respond to the key operation.

After only the usable keys among the operation keys of the operation key panel 4 of the apparatus main body and the operation keys of the remote controller 5 are illuminated, other navigation pack processing is executed (step ST512), and the process returns to ST412 of FIG. 86. .

On the other hand, if no UOP of bit “1” is detected in step ST 504, that is, if there is no key whose user operation is prohibited at that time (No in step ST 504), only the usable key stands out. The OSD display of the controller icon is deleted from the screen of the monitor 6 (step ST514). Further, data is input to MPU 5B of remote controller 5 so as to illuminate all available remote controller keys (step ST516). Thereafter, the process returns to ST412 in FIG.

FIG. 88 is a flow chart for explaining another example of the navigation pack process (NV pack process ST412) of FIG. In FIG. 87, detection of UOP = 1b is performed by the MPU 50 on the apparatus main body side.
MPU5 on the remote controller side detects OP = 1b
We go in B.

That is, the user operation prohibition information (VOBU)
_UOP_CTL) in the work memory (step ST600), and then the MPU 50 transfers the user operation prohibition information to the remote controller 5 (step S600).
T602). Then, the MPU of the remote controller 5
5B shows key data (VOBU) that can be used at that time.
UOP0 to UOP24 such as _UOP_CTL; FIG. 75)
Is input (step ST604). And MPU
5B detects a UOP in which bit “1” is set (step ST606), and detects a UO in which bit “1” is not set.
Only the illumination LED of the operation key corresponding to P is turned on (step ST608). Then, ST412 of FIG.
Return to

On the other hand, in the MPU 50 on the main body side, the detection processing of the UOP in which the above-mentioned bit “1” is set is omitted, and other navigation pack processing such as menu highlight processing is executed (step ST610).

FIG. 89 is a flowchart for explaining still another example of the navigation pack process (NV pack process ST412) of FIG. In FIG. 89, when the bit sequence of the previous UOP bit changes, the user-usable key is displayed according to the change.

[0609] That is, the MPU 50 fetches new user operation prohibition information (VOBU_UOP_CTL etc.) into the work memory (step ST700), and the old user operation prohibition information (VOBU_UOP) fetched immediately before.
_CTL) and the UOP bit string are compared (step ST702).

If there is no difference in the UOP bit (NO in step ST704), there is no change in the usable keys, so that menu highlighting processing and other navigation pack processing are executed (step ST714), and then the process proceeds to step S714 in FIG.
It returns to T412.

On the other hand, new / old user operation prohibition information (VO
If a difference is detected in the UOP bit string (eg, BU_UOP_CTL) (Yes in step ST704), it means that the key corresponding to the UOP having the different bit has changed in the usable state. For example, old VOBU_UOP
_CTL UOP 22 (FIG. 75) is bit “1”, but new VOBU_UOP_CTL UOP 22
In FIG. 75, if the bit is “0”, the new VOBU_U
When the OP_CTL is captured, the angle key becomes usable.

[0612] When a change in the key usable state is detected (YES in step ST704), the MPU 50 of the main body of the apparatus sets new user operation prohibition information (VOBU_
Based on UOP_CTL), a remote controller icon with a usable key prominent is displayed on the monitor 6 by OSD (step ST706).
New user operation prohibition information (VOBU)
_UOP_CTL) (step ST70)
8).

The MPU 5B of the remote controller 5
UOP such as new VOBU_UOP_CTL transferred
Based on the contents of the bit string, the backlight illumination LED of the key that can be used at that time is turned on (step ST71).
0), the contents of the UOP bit string such as the new VOBU_UOP_CTL are stored in its own memory (not shown) (step ST712).

[0614] Thereafter, menu highlight processing and other navigation pack processing are executed (step ST714), and the flow returns to ST412 in Fig. 86.

FIG. 90 is a flow chart for explaining an example of the key interrupt processing in the reproducing apparatus of FIG.
The key interruption occurs when the user presses any operation key on the main body operation panel 4 or the remote controller 5.

That is, when the user presses any key, it is checked whether the UOP bit corresponding to the key operation at that time is “1” or “0” (step ST).
800).

If the user operation is ON of the UOP prohibition key (YES in step ST802), a mark indicating that the operation is prohibited is displayed on the monitor 6, and the user is informed that the key operation is invalid. Notification is made (step ST804).

If the user operation is on other than the UOP prohibition key (NO in step ST802), the key-on data is stored in the work memory (step S802).
T806). The process proceeds to a process corresponding to the key operation.

[0619]

As described above, according to the present invention,
The available keys that can change at that time are sequentially notified to the user in an easily understandable manner.

[Brief description of the drawings]

FIG. 1 is a reproduction-only optical disk (DVD-ROM) or a recordable / reproducible optical disk (DVD-RAM,
FIG. 2 is a perspective view illustrating a structure of a DVD-RW or a DVD-R).

FIG. 2 is a view for explaining a correspondence relationship between a data recording area of the optical disk (DVD-ROM, DVD-RAM or DVD-R) of FIG. 1 and a recording track of data recorded thereon.

FIG. 3 shows an optical disk (DVD-ROM, DVD-ROM) shown in FIG.
FIG. 2 is a diagram for explaining an example of a hierarchical structure of information recorded in R).

FIG. 4 is an exemplary view for explaining an example of a directory structure of information (data file) recorded on the optical disk of FIG. 2;

FIG. 5 is a view for explaining an example of the contents of a directory record corresponding to the directory structure of FIG. 4;

FIG. 6 is an exemplary view for explaining the structure of a video manager VMG in FIG. 3;

FIG. 7 is a video manager information management table VM of FIG.
The figure explaining the content of GI_MAT.

8 is a title search pointer table TT_ of FIG.
The figure explaining the content of SRPT.

9 is title search pointer table information T of FIG. 8;
The figure explaining the content of T_SRPTI.

FIG. 10 is a view for explaining the contents of a title search pointer TT_SRP for each title #n shown in FIG. 8;

11 is a diagram showing a title reproduction type TT_P shown in FIG.
The figure explaining the content of B_TY.

12 is a view for explaining a hierarchical path from the video manager VMG in FIG. 3 to the title reproduction type TT_PB_TY in FIG. 11;

FIG. 13 is a view showing an example of a hierarchical structure of information included in the video object set VOBS of FIG. 3;

FIG. 14 is a view for explaining an example of the contents of the lowermost pack in the hierarchical structure of FIG. 13;

FIG. 15 is a view for explaining the contents of the navigation pack of FIG. 14;

FIG. 16 is a view for explaining the contents of the dummy pack shown in FIG. 14;

FIG. 17 is a view for explaining the contents of the PCI packet of FIG. 15;

FIG. 18 is a view for explaining the contents of the reproduction control information PCI of FIG. 17;

19 is reproduction control information general information PCI_GI of FIG. 18;
FIG.

20 is a user operation control V of the VOBU shown in FIG. 19;
The figure explaining the content of OBU_UOP_CTL.

FIG. 21 shows the video title set VTS of FIG. 3 to FIG. 2;
The figure explaining the hierarchical path | pass until it reaches the user operation control VOBU_UOP_CTL of 0.

FIG. 22 is a view for explaining a configuration of a program chain PGC formed by a set of a plurality of programs including a large number of cells in FIG. 3 or FIG. 13;

FIG. 23 is a diagram illustrating a recording arrangement of cells in which cells of a program chain PGC are arranged in a continuous order.

FIG. 24 is a diagram illustrating a recording arrangement of cells in which cells of a program chain PGC are arranged in a non-consecutive order.

FIG. 25 is a view for explaining the structure of program chain information PGCI in the program chain PGC of FIG. 22;

26 is a view for explaining the contents of a cell reproduction information table C_PBIT included in the program chain information PGCI of FIG. 25.

FIG. 27 is a cell reproduction information table C_PBIT of FIG. 26;
Fig. 7 is a view for explaining the contents of each cell reproduction information C_PBI included in the file.

FIG. 28 is a view for explaining the contents of a cell category C_CAT included in the cell reproduction information C_PBI of FIG. 27;

FIG. 29 is a view for explaining the contents of program chain general information PGC_GI included in the program chain information PGCI of FIG. 25;

FIG. 30 shows general program chain information PGC of FIG. 29.
_GI included program chain user operation control P
The figure explaining the content of GC_UOP_CTL.

FIG. 31 is an exemplary view for explaining a hierarchical path from the video title set VTS in FIG. 3 (or the program chain PGC in FIG. 22) to the user operation control PGC_UOP_CTL in FIG. 30;

FIG. 32 is an exemplary view for explaining the structure of the video title set VTS of FIG. 3;

FIG. 33 is an exemplary view for explaining the contents of the video title set information management table VTSI_MAT of FIG. 32;

FIG. 34 is a video title set part of title search pointer table VTS_PTT_SRP of FIG. 32;
The figure explaining the content of T.

FIG. 35 is an exemplary view for explaining the contents of part-of-title search pointer table information PTT_SRPTI in FIG. 34;

FIG. 36 is an exemplary view for explaining the contents of a search pointer TTU_SRP for each title unit #n shown in FIG. 34;

FIG. 37 is a view for explaining the contents of the part-of-title search pointer PTT_SRP of FIG. 34;

FIG. 38 is an exemplary view for explaining the contents of the video title set program chain information table VTS_PGCIT of FIG. 32;

FIG. 39 is an exemplary view for explaining the contents of the video title set program chain information table information VTS_PGCITI of FIG. 38;

FIG. 40 is a video title set program chain information search pointer VTS_PGCI_SRP of FIG. 38.
FIG.

41 is a video title set program chain category VTS_PG included in the program chain information search pointer VTS_PGCI_SRP of FIG. 40.
The figure explaining the content of C_CAT.

FIG. 42 shows a program chain information unit table VTSM_PG for the video title set menu of FIG. 32;
The figure explaining the content of CI_UT.

FIG. 43 shows the program chain information unit table information VTSM_ for the video title set menu shown in FIG. 42;
The figure explaining the content of PGCI_UTI.

FIG. 44 is an exemplary view for explaining the contents of a language unit search pointer VTSM_LU_SRP for the video title set menu of FIG. 42;

FIG. 45 is an exemplary view for explaining the contents of the language unit VTSM_LU for the video title set menu of FIG. 42;

FIG. 46 is an exemplary view for explaining the contents of the language unit information VTSM_LUI for the video title set menu of FIG. 45;

FIG. 47 shows a program chain information search pointer VTSM_PGC for the video title set menu of FIG. 45.
The figure explaining the content of I_SRP.

48 is a program chain category V for a video title set menu included in the program chain information search pointer VTSM_PGCI_SRP of FIG. 47.
The figure explaining the content of TSM_PGC_CAT.

FIG. 49 is an exemplary view for explaining a hierarchical structure of a menu used in the apparatus for reproducing the optical disc of FIG. 1 or 2;

FIG. 50 is an exemplary view for explaining the contents of the video title set time map table VTS_TMAPT of FIG. 32;

FIG. 51 is an exemplary view for explaining the contents of video title set time map table information VTS_TMAPTI in FIG. 50;

FIG. 52 is an exemplary view for explaining the contents of a video title set time map search pointer VTS_TMAP_SRP in FIG. 50;

FIG. 53 is an exemplary view for explaining the contents of the video title set time map VTS_TMAP in FIG. 50;

FIG. 54 is an exemplary view for explaining the contents of a map entry address MAP_ENA included in the video title set time map VTS_TMAP of FIG. 53;

FIG. 55 is an exemplary view for explaining the contents of the video title set menu cell address table VTSM_C_ADT of FIG. 32;

FIG. 56 is an exemplary view for explaining the contents of the video title set menu cell address table information VTSM_C_ADTI of FIG. 55;

FIG. 57 is an exemplary view for explaining the contents of the video title set menu cell piece information VTSM_CPI in FIG. 55;

FIG. 58: Video object unit address map VTSM_V for the video title set menu in FIG. 32
The figure explaining the content of OBU_ADMAP.

FIG. 59: Video object unit address map information VTSM for the video title set menu of FIG. 58
The figure explaining the content of _VOBU_ADAPI.

60 is a video object unit address VTSM_VOB for each video title set menu in FIG. 58.
The figure explaining the content of U_AD # n.

FIG. 61 is an exemplary view for explaining the contents of the video title set cell address table VTS_C_ADT of FIG. 32;

FIG. 62 is an exemplary view for explaining the contents of the video title set cell address table information VTS_C_ADTI in FIG. 61;

FIG. 63 is an exemplary view for explaining the contents of the video title set cell piece information VTS_CPI in FIG. 61;

FIG. 64 is an address map VTS_VOBU_ of the video object unit for video title set in FIG. 32;
The figure explaining the content of ADMAP.

65. Address map information VTS_VOB of the video title set video object unit in FIG. 64.
The figure explaining the content of U_ADAPI.

66. Address VTS_VOBU_AD of each video title set video object unit in FIG. 64.
The figure explaining the content of #n.

FIG. 67 shows one program chain of FIG. 22;
FIG. 7 is a view for explaining a case where a sequential PGC title is formed.

FIG. 68 is an exemplary view for explaining a case where a plurality of program chains in FIG. 22 are collected to form a multi-PGC title;

69 is a view for explaining a hierarchical path from the video title set VTS in FIG. 3 to navigation commands (link command group, jump command group, etc.) and navigation parameters (general parameters, system parameters).

FIG. 70 is an exemplary view for explaining the contents of a PGC command table PGC_CMDT designated by the PGC_CMDT start address in FIG. 29;

FIG. 71 is a PGC command table PGC_C of FIG. 70;
FIG. 4 is a view for explaining the configuration of a post command POST_CMD in the MDT.

FIG. 72 is an exemplary view for explaining the configuration of a button command BTN_CMD included in highlight information HLI in the reproduction control information PCI of FIG. 18;

FIG. 73 shows a pre-command PRE_CMD, a post command POST_CMD, and a cell command C_CM of FIG. 70;
FIG. 72 is a view for explaining the configuration of a navigation command used as D or the button command BTN_CMD in FIG. 72;

FIG. 74 is an exemplary view for explaining the contents of a navigation parameter setting (SetSystem) instruction group included in the navigation command of FIG. 73;

FIG. 75: Title playback type TT_PB_T of FIG. 11
User operation control in Y (UOP0, UOP1), FIG.
The control bits (UO0) of the user operation control (UOP0 to UOP24) in the user operation control VOBU_UOP_CTL of FIG. 30 and the user operation control (UOP0 to UOP24) of the user operation control PGC_UOP_CTL in FIG.
FIG. 7 is a diagram for explaining the relationship between P0 to UOP24) and their corresponding user functions.

FIG. 76 is a block diagram illustrating a schematic configuration of an optical disc reproducing device according to an embodiment of the present invention.

FIG. 77 is an exemplary view for explaining the internal configuration of a remote controller used in the playback device of FIG. 76;

FIG. 78 is an exemplary view for explaining an example of a remote controller used in the reproducing apparatus of FIG. 76 or another recording / reproducing apparatus.

FIG. 79 is an exemplary view for explaining an example in which only the keys that can be operated by the user of the remote controller in FIG. 78 are lit when normal reproduction is performed by the reproduction device in FIG. 76;

FIG. 80 is an exemplary view for explaining an example in which only keys that can be operated by the user of the remote controller in FIG. 78 are lit when a menu operation is performed on the playback device in FIG. 76;

FIG. 81 is an exemplary view for explaining an example in which, in the playback device of FIG. 76, an icon of a remote controller in which a key other than a user-operable key is displayed as a ghost is displayed on a monitor screen;

FIG. 82 is a flowchart for explaining an operation example from when the optical disc of FIG. 1 or 2 is set in the reproducing apparatus of FIG. 76 until the reproduction process is started;

FIG. 83 is a flowchart (part 1) illustrating an example of normal playback in the playback device of FIG. 76;

FIG. 84 is a flowchart (part 2) illustrating an example of normal playback in the playback device of FIG. 76.

FIG. 85 is a flowchart (part 3) illustrating an example of normal reproduction in the reproduction device of FIG. 76;

86 is a flowchart illustrating an example of cell playback in the playback device of FIG. 76.

FIG. 87 is a flowchart for explaining an example of the navigation pack process (NV pack process ST412) of FIG. 86.

FIG. 88 is a flowchart for explaining another example of the navigation pack process (NV pack process ST412) of FIG. 86;

FIG. 89 is a flowchart for explaining still another example of the navigation pack process (NV pack process ST412) in FIG. 86;

FIG. 90 is a flowchart illustrating an example of a key interrupt process in the playback device of FIG. 76.

[Explanation of symbols]

 Reference numeral 4: Operation key panel with backlight; 4A, 5A: Remote controller transmitter / receiver; 5: Remote controller; 5B: MPU; 5C: LED driver; 5D: Operation key array; 11 Optical disc (DVD) 11 Cartridge 14 Transparent substrate (Polycarbonate) 17 Recording layer 20 Adhesive layer 22 Central hole 24 Clamping area 25 Information area 26 Lead-out area 27: Lead-in area; 28: Data recording area; 54: System processor; 54A: Data separation section; 54B: Memory I / F; 56: Memory; 58: MPEG decoder (video decoder); ... Audio decoder; 61 Digital-to-analog converter; 6 ... sub-picture decoder.

 ──────────────────────────────────────────────────の Continuing from the front page (72) Inventor Kazuhiko Taira 3-3-9, Shimbashi, Minato-ku, Tokyo Inside Toshiba AV EE Co., Ltd.

Claims (15)

[Claims] 1. A medium for recording a title as a recorded content main body and a group of user operation bits for determining whether or not a user operation is possible, and means for extracting the group of user operation bits from the medium Means for selectively displaying operation keys that are not prohibited by the contents of the user operation bits when the user operation bits include the contents prohibiting the user operation. system. 2. A medium for recording a title as a recording content main body and a group of user operation bits for determining whether or not user operation is possible, comprising: means for extracting the group of user operation bits from the medium. When the user operation bit group includes contents prohibiting user operation, on-screen display means for prominently displaying an operation key not prohibited by the contents of the user operation bit group on the reproduction screen of the title. A usable key display system, comprising: 3. The method according to claim 1, further comprising using a medium in which reproduction control information for controlling reproduction of recorded data and a video object unit user operation control information included in the reproduction control information are recorded. Means for extracting, from the unit user operation control information, a user operation bit group for determining whether or not the user operation is permitted; and an operation not prohibited by the contents of the user operation bit group when the user operation bit group includes contents prohibiting the user operation. Means for displaying a key. 4. A medium which records a title as a recorded content main body, reproduction control information for controlling reproduction of the title, and video object unit user operation control information included in the reproduction control information. Means for extracting, from the video object unit user operation control information, a group of user operation bits for determining whether or not a user operation is possible; and when the group of user operation bits includes a content prohibiting a user operation, the group of user operation bits On-screen display means for displaying, on the playback screen of the title, operation keys that are not prohibited by the contents of (1). 5. An apparatus for reproducing a title from a medium in which a title as a recorded content main body and a group of user operation bits for determining whether or not a user operation is possible, wherein the user operation bit is provided. A remote controller characterized in that when a group includes contents prohibiting user operation, operation keys not prohibited by the contents of the user operation bit group are displayed prominently. 6. A title as a recorded content body, playback control information for controlling playback of the title, a video object unit user operation control information included in the playback control information, and a video object unit user operation control information. The present invention is applied to a device for reproducing the title from a medium in which a group of user operation bits that determine whether or not the user operation is included is included, and when the group of user operation bits includes contents that prohibit the user operation. A remote controller characterized in that operation keys that are not prohibited by the contents of the user operation bit group are displayed prominently. 7. The remote controller according to claim 5, wherein the “operation key that is conspicuously displayed” changes according to the content of the user operation bit group. 8. Reproduction control information for controlling the reproduction of recorded data, reproduction control information general information included in the reproduction control information, and video object unit user operation control information included in the reproduction control information general information. Extracting a user operation bit group that determines whether or not a user operation is possible from the video object unit user operation control information; and a content in which the user operation bit group prohibits the user operation. Notifying the user of a key operation that is not prohibited by the contents of the user operation bit group. 9. A recording medium in which a title as a recorded content main body, title search information for searching the recorded content of the title, and reproduction title format information included in the title search information are recorded. When the playback title format information includes a user operation bit group that determines whether or not to allow a user operation after being read into the playback device, and when the user operation bit group includes a content that prohibits a user operation, the user operation bit A digital information recording medium, characterized in that information is provided to the playback device so that a user can be notified of a key operation that is not prohibited by the contents of the group. 10. A video title set information in which information about a title as a recorded content body is described; a program chain information table included in the video title set information; and a part of the title included in the program chain information table. Program chain information describing information about the program chain constituting the program chain general information included in the program chain information, and the program chain user operation control information included in the program chain general information on a medium in which When the program chain user operation control information includes a user operation bit group for determining whether or not the user operation is permitted, and when the user operation bit group includes a content for prohibiting the user operation, the user is prohibited by the content of the user operation bit group. Digital information recording medium, characterized in the information that the no key operation to notify the user by being configured to provide said reproducing apparatus. 11. Reproduction control information for controlling reproduction of recorded data, reproduction control information general information included in the reproduction control information, and a video object unit user operation control information included in the reproduction control information general information. When the video object unit user operation control information includes a user operation bit group that determines whether or not the user operation is possible, and when the user operation bit group includes contents that prohibit the user operation, the user operation control information A digital information recording medium configured to provide information to a user so that a user can be notified of a key operation that is not prohibited by the content of a bit group. 12. Reproduction of recorded information from an information recording medium having user operation prohibition information for designating operation keys whose use is prohibited during reproduction, wherein the operation is performed by a remote controller having various operation keys. (A) an extracting means for extracting the user operation prohibition information from the information recording medium; and an operation prohibited based on the user operation prohibition information extracted from the extracting means. A prohibition key judgment unit for judging a key and providing the judgment result; and a transfer unit for transferring a judgment result from the prohibition key judgment unit to the remote controller. Receiving means for receiving the transferred determination result; operation usable based on the determination result received by the receiving means A key display unit for selectively displaying the keys so as to be prominently displayed. 13. Reproduction of recorded information from an information recording medium having user operation prohibition information for designating operation keys whose use is prohibited during reproduction, wherein the operation is performed by a remote controller having various operation keys. (A) an extracting means for extracting the user operation inhibition information from the information recording medium; and a transfer for transferring the user operation inhibition information extracted from the extracting means to the remote controller. (B) receiving means for receiving the user operation prohibition information transferred from the transfer means; and prohibiting operation based on the user operation prohibition information received by the receiving means. Prohibition key determination means for determining a key to be provided and providing the determination result; and the determination result from the prohibition key determination means And a usable key display means for selectively displaying prominent operation keys based on the operation key. 14. Reproduction of recorded information from an information recording medium having user operation prohibition information for designating operation keys whose use is prohibited during reproduction, wherein the operation is performed by a remote controller having various operation keys. (A) an extracting unit for extracting the user operation prohibition information from the information recording medium; and an operation performed based on a change in the content of the user operation prohibition information extracted from the extraction unit. Prohibiting key determining means for determining a prohibited key and providing a result of the determination; and transferring means for transferring a determination result from the prohibiting key determining means to the remote controller. (B) the remote controller comprises: Receiving means for receiving the determination result transferred from the transfer means; use based on the determination result received by the receiving means A playback key display unit for selectively displaying prominent operation keys so as to be prominently displayed. 15. The apparatus according to claim 12, wherein said usable key display means includes means for selectively illuminating usable operation keys.
A remote controller for a playback system according to the item.