JP3445598B2 - Digital information management system including video information - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital information management system including video information such as moving images and still images.

[0002]

2. Description of the Related Art There is a digital camera for digitally recording still image information. The digitally recorded still image information is used for menu images and the like not only in digital cameras but also in DVD (digital versatile disc) videos for digitally recording / reproducing moving image information (see, for example, Patent Document 1).

[0003]

[Patent Document 1] Japanese Patent Application Laid-Open No. 9-182013.

[0004]

DISCLOSURE OF THE INVENTION In a digital camera,
Each shot still image is stored as a separate file. When still image information for each image is divided and stored in individual files in this manner, the following inconvenience occurs.

That is, a) Since the contents of similar still images or still images taken at the same time are not grouped, management and retrieval of individual still images become complicated. For example, since it is necessary to open the files separately to check the contents of each still image information, it takes time to check the contents.

B) When a plurality of still picture information are to be handled in a DVD_RTR (real time recording) system capable of recording / reproducing, compatibility / continuity with the DVD video system cannot be maintained.

The present invention has been made in view of the above circumstances, and an object thereof is a recording format between a moving image and a still image in a DVD_RTR recording / reproducing system which secures a certain degree of compatibility and continuity with a DVD video. Another object of the present invention is to provide a digital information management system capable of handling a plurality of still image information while ensuring consistency or continuity of the management information.

[0008]

Predetermined control information and object data can be recorded on the information recording medium used in the management system according to the present invention.

The information recording medium is configured to record a group of still image video objects including one or more still images and predetermined additional audio information, and the still image video object includes sub-picture information. The sub-picture stream is recordable. The control information includes a still image AV file information table, and the still image AV file information table manages the stream information of the still image video object, the stream information of additional audio, and the still image A that manages the still image video object.
It includes V file information and additional audio file information. The still image AV file information includes group information of the still image video object, and
The additional audio file information includes additional audio group information.

Here, the group information of the still picture video object includes entry information of the still picture video object, still picture video object number information indicating the number of still picture video objects, and stream information number of the still picture video object. And the number of additional audio entry information indicating the number of additional audio entry information and the number of additional audio entry information, and the number of additional audio stream information. It includes additional audio stream information number information indicating. The still image video object entry information is configured to include additional audio group number information indicating a group number of the additional audio information and additional audio entry number information indicating an entry number of the additional audio information. The entry information of the video object is configured to include the entry type information of the still image video object, and the entry type information is further configured to include the sub-picture stream information describing the number of the sub-picture streams.

[0011]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

1A to 1F are views for explaining the data structure of an information recording medium according to an embodiment of the present invention.

[1] Data outline structure on information storage medium DVD_RTR as shown in FIG. 1A as an information storage medium capable of recording / reproducing video information or music information.
There is a disc (optical disc using phase change) 1001. The recorded information content (data structure) of the information recorded on the disc 1001 will be described below.

The schematic data structure of the information recorded on the optical disc 1001 is, as shown in FIG. 1B, in order from the inner peripheral side 1006.
A lead-in area 1002 having a mirror zone with a flat surface (mirror surface) and a rewritable data zone in which information can be rewritten;
Volume / file management information 1003 in which information on a file of video data (AV data) or the entire volume is stored; -Data area 1004 consisting of a rewritable data zone in which recording / rewriting is possible by the user; -Rewritable in which information can be rewritten It is divided into a lead-out area 1005; composed of data zones.

The embossed data zone of the lead-in area 1002 includes: -DVD-ROM / DVD-RAM / DVD-R disc type, disc size, recording density, physical sector number indicating recording start / recording end position, etc. Information regarding the entire information storage medium; -Information regarding recording / reproducing / erasing characteristics such as recording power and recording pulse width, erasing power, reproducing power, and recording / erasing linear velocity; Information regarding the manufacture of the medium; is recorded in advance.

The rewritable data zone of the lead-in area 1002 and the rewritable data zone of the lead-out area 1005 are respectively: a unique disc name recording area for each information storage medium, a trial recording area (for confirming the recording and erasing conditions), A management information recording area related to a defective area in the data area 1004 is provided, and information can be recorded in the area by the information recording / reproducing apparatus.

In the data area 1004 sandwiched between the lead-in area 1002 and the lead-out area 1005, as shown in FIG. 1C, mixed recording of computer data and audio / video data (AV data) is possible. It has become.

The recording order of computer data and audio / video data and the size of each recording information are arbitrary. Here, the place where the computer data is recorded is called computer data area 1008, 1010, and the area where the audio / video data is recorded is named audio / video data area 1009.

Audio / video data area 1009
The data structure of the information recorded in is as shown in FIG. 1 (d): Anchor pointer 1015 for control information: arranged at the first position in the audio / video data area 1009, and the audio / video data area Information indicating the start position (start address) where the control information 1011 in 1009 is recorded; -Control information 1011: Control information required for each processing of recording (recording), reproduction, editing, and retrieval; -Video object 1012: Recording information of contents (contents) of video data; -Picture object 1013: Still image information such as still images and slide images; -Audio object 1014: Recording information of contents (contents) of audio data; -Thumbnail object 1016: If you want to search the place you want to see in the video data, Thumbnail utilized during editing (Thumbnail) reduced image information and the like; and the like.

The video object 101 of FIG. 1 (d)
2, the picture object 1013, the audio object 1014, the thumbnail object 1016,
Each of them means a collection (group) of information classified by content contents (contents of data).

Therefore, all video information recorded in the audio / video data area 1009 is included in the video object 1012, all still picture information is included in the picture object 1013, and all audio / audio information is included in the audio object 1014. All thumbnail information used for managing / retrieving video information is included in the thumbnail object 1016.

A video object VOB 1403 shown in FIG. 3, which will be described later, indicates a block of information recorded in an AV file (audio / video file) 1401, and a video object 1012 shown in FIG. 1 (d).
Has a different definition from. Note that although the terms are similar, they are used in different meanings.

Further, the content of the control information 1011 is shown in FIG.
As shown in (e): AV data control information 1101: video object 1
Management information of information relating to the recording position on the optical disc 1001 which is an information storage medium and manages the data structure in 012; -Playback control information 1021: Control information necessary for playback; -Recording control information 1022: Recording (recording) -Control information necessary for recording) -Edit control information 1023: Control information necessary for editing; -Thumbnail control information 1024: Management information about a thumbnail (thumbnail object) for searching or editing a desired location in video data; have.

The control information 1101 and 1 shown in FIG.
021 is the RTR. IFO and RTR of FIG. 23
_VMG is supported.

The data structure in the AV data control information 1101 shown in FIG. 1 (e) is as shown in FIG. 1 (f): Allocation map table 1105: on information storage medium (optical disc 1001) Information about address setting according to actual arrangement, identification of recorded / unrecorded area, etc.;-Video title set information VTSI 1106: shows overall information contents in the AV file 1401 as shown in Fig. 3, and between VOBs. Connection information, time information such as grouping information of multiple VOBs for management / search and time map table (corresponding to RTR_VMGI in FIG. 8); Video object information 1107: AV file 1401 as shown in FIG. The information about each VOB in the VOB is shown. Information about individual VOBU that (M_AV 8
FIT / S_AVFIT or S_AVFIT in FIG.
Program chain control information 1103: information on a video information reproduction program (sequence) (PG in FIG. 23)
Cell reproduction information 1108: information regarding the data structure of the video information basic unit at the time of reproduction (corresponding to CI in FIG. 23 or S_CI in FIG. 24);

The contents of (a) to (f) of FIG. 1 will be outlined, but a little supplementary explanation will be given below for individual information.

In the volume / file management information 1003, information regarding the whole volume; information regarding the number of files of PC data and number of files relating to AV data; recording layer information;

Particularly, as recording layer information, the number of constituent layers (for example, RAM / ROM two-layer disc 1
Number of discs is 2 layers, ROM 1 layer disc is also 2 layers, single sided disc n is counted as n layer);-Logical sector number range table (capacity of each layer) allocated for each layer; -For each layer Characteristics (example: DVD-RAM disk,
RAM / ROM RAM part of dual-layer disc, CD-RO
M, CD-R, etc.);-A zone logical area number allocation table in the RAM area for each layer (including rewritable area capacity information for each layer);-Unique ID information for each layer (For example, information for finding a disc exchange in a multiple disc pack); This enables multiple disk packs and RA
Consecutive logical sector numbers are set for an M / ROM two-layer disc so that it can be handled as one large volume space.

In the reproduction control information 1021, information regarding a reproduction sequence in which PGCs are integrated; (Sequence of continuously reproducing all recorded cells);-Information regarding simultaneous reproduction of multiple screens having different video information; -Search information (table of cell ID corresponding to each search category and start time in the cell) Is recorded, and information that enables the user to directly access the relevant video information by selecting a category);

The recording control information 1022 includes -Program reservation recording information is recorded.

Further, the editing control information 1023 includes: -Special editing information for each PGC unit (corresponding time setting information and special editing contents are described as EDL information);-File conversion information (specification in AV file) AV part
It is converted to a file that can be specially edited on the PC, such as an I file, and specifies the file storage location after conversion);

The thumbnail control information 1024 includes: management information about the thumbnail object 1016.
The recording location of each thumbnail image in the AV data area 1009 and the VOB relating to each thumbnail image
Or cell designation information, V related to each thumbnail image
The location information in the OB or the cell (the VOB and the cell will be described in detail in the content description location of FIG. 3) is described.

[2] Directory Structure of Data File in Data Area Next, the directory structure will be described. Figure 1 (b)
All information recorded in the data area 1004 is recorded in file units. The relationship between each data file is
It is managed by a directory structure as shown in FIG.

In FIG. 2, the root directory 145
Below 0, a plurality of sub-directories 1451 are installed for easy classification for each file content to be recorded.

In the embodiment of FIG. 2, each data file relating to computer data recorded in the computer data area 1008, 1010 of FIG. 1C is recorded under the computer data storage subdirectory 1457, and audio / video is recorded. The audio / video data recorded in the data area 1009 is recorded under the rewritable video title set RWV_TS1452.

In addition, a DVD video disc (or DV
When the video information recorded on the D audio disc) is copied to the disc shown in FIG. 1A, it is copied under the video title set VIDEO_TS1455 and the audio title set AUDIO_TS1456.

The control information 1011 information shown in FIG. 1D is recorded as one file as recording / playback video management data. In the embodiment shown in FIG. 2, the file name is RWVIDEO_CO.
NTROL.IFO (or real-time recording information; RT for short)
R. IFO). Further, the same information is recorded for backup as a file name RWVIDEO_CONTROL.BUP.

In the embodiment shown in FIG. 2, the video object (RTR_MOV.VRO) 1012 shown in FIG.
Picture object (RTR_STO.VRO) 10
13, audio object (RTR_STA.VR
O) 1014 and thumbnail objects 1016 are all recorded in one file as an AV file 1401 (file name in the embodiment of FIG. 2 is RWOBJECT.OB).

Although not shown in FIG. 1, recording / reproduction additional information 1454 that can be used at the time of recording / reproducing an image can be simultaneously recorded, and the information is collectively recorded as one file. In the form of RWADD.DAT (S_AA_STI / S_AAFI in FIG. 12 or AA_ in FIG.
It corresponds to the ENT) file name.

[3] Data Structure in AV File FIG. 3 shows an example of the data structure in the AV file. Figure 3
As shown in (b), the entire AV file 1401 constitutes one video title set VTS (or RTR movie object RTR_MOV.VRO) 1402.

In the VTS 1402, a plurality of videos separated into a plurality of part-of-titles (or a plurality of chapters) 1407 and 1408 according to the contents of audio / video data and the order of information recorded in the AV file 1401. Object VOB 1403, 1404, 140
It consists of 5 groups.

VOBs 1403 and 1404 shown in FIG.
The video 1405 is defined as a group of audio / video data recorded in the AV file 1401 and has a strong categorical color such as video information / still image information / audio information / thumbnail information shown in FIG. 1D. The object 1012 has a different definition content.

Therefore, the VOB 140 shown in FIG.
Video object 10 in 3, 1404, 1405
Not only the information classified into 12 is recorded, but also the information classified into the picture object 1013, the audio object 1014, and the thumbnail object 1016 is recorded as shown in FIG.

Grouping is performed for each related VOB based on the information content (content) recorded in each VOB 1403, 1404, 1405, and a part-of-title PTT (or chapter) 140 is set for each group.
7, 1408.

That is, the PTTs 1407 and 1408 are constructed as an aggregate of one or a plurality of VOBs.

In the embodiment shown in FIG. 3C, the VOB 140 is used.
4 and VOB 1405 make up a PTT 1408, and PTT 1407 is made up of only one VOB 1403.

The minimum basic unit of video information is called a video object unit VOBU 1411 to 1414, and the data in the video object VOB 1403 to 1405 is VOBU 1411 to 141 as shown in FIG. 3 (e).
It is configured as an aggregate of four.

MPEG1 or MPEG2 is often used as the video information compression technique in the VOBs 1403 to 1405.

In MPEG, the video information is divided into groups called a group of pictures GOP at intervals of about 0.5 seconds, and the video information is compressed in units of GOP.
The video information compression units of the video object units VOBU 1411 to 1414 are formed in the same size as this GOP and in synchronization with the GOP.

These VOBUs 1411-1414 are
It is recorded by being divided into sectors 1431 to 1437 in units of 2048 bytes. Recording is performed in each sector 1431 to 1437 in a pack structure format. That is, for each pack, the raw video information, the sub-video information, the audio information, and the dummy information are respectively included in the video pack V_PCK1421,1.
425, 1426, 1427, sub-picture pack SP_PCK
1422, audio pack A_PCK1423, and dummy pack DM_PCK1424.

The size of each pack is 2048 bytes, but since it has a pack header of 14 bytes at the beginning,
The amount of information recorded in each pack is 2034 bytes.

Here, the dummy pack DM_PCK1424
Is used to add postscript information after recording. For example, after-recording (post-recording) information is inserted in an audio pack and replaced with a dummy pack, and memo information is inserted into a sub-picture pack and replaced with a dummy pack.

A recording area of a DVD-RAM disk (DVD_RTR disk) which is an example of the information storage medium (optical disk 1001) shown in FIG. 1A is divided into a plurality of sectors. A data amount of 2048 bytes can be recorded per sector. In this DVD-RAM disc, recording / reproducing is performed in units of sectors (2048 bytes). Therefore, the information storage medium (optical disc 1001)
When a DVD-RAM disk is used as the
As shown in (f), each pack has sectors 1431 to 143.
Recorded in 7 units.

As shown in FIGS. 3B and 3D, a series of all VOBs 1403 to 1405 in the AV file 1401 is connected to the video title set VTS (or RTR).
_MOV. VRO) 1402 is configured. On the other hand, in the reproduction procedure described in the reproduction control information (pack control information) 1021, it is possible to specify an arbitrary range within an arbitrary VOB and to reproduce in an arbitrary reproduction order. The basic unit of video information during playback is cell 144
Called 1, 1442, 1443.

The cells 1441, 1442, and 1443 can specify an arbitrary range in an arbitrary VOB, but cannot specify the VOBs (a plurality of VOBs can be connected by one cell to define the range). Cannot be set).

In the embodiment of FIG. 3G, the cell 144
1 designates one VOBU 1412 in the VOB 1403, cell 1442 designates one VOB 1404 as a whole, and cell 1443 designates the range of only a specific pack (V_PCK 1427) in the VOBU 1414.

Information indicating the video information reproduction sequence is set by the program chain PGC1446, and this reproduction sequence is described by one cell designation or connection information of a plurality of cells. Figure 3
In the embodiment of (h), the program chain PGC14
Reference numeral 46 constitutes a reproduction program as a connection of cells 1441, 1442 and 1443 (cell and P
A detailed description of the relationship between GCs will be given later).

The VOB 1403 shown in FIG. 3 can contain not only video information but also audio information. In this case, VOBU1 configuring VOB1403
Reference numeral 411 denotes V_PCK1421 which constitutes the video part.
And SP_PCK 1422, and A_PCK 1423 and DM_PCK (for after recording) 1424 forming the audio part.

The video part is a sequence header and a GOP header formed by a part of the contents on the head side of the V-PCK and an MPEG I formed by the contents of the V_PCK group.
It is composed of a picture, a sequence end code composed of a part of contents on the end side of V-PCK, and a sub-picture unit SPU composed of contents of SP_PCK (see FIG. 3 (j)).

The audio part includes audio data reproduced in synchronization with the still picture reproduction using the I picture of the video part, and is composed of one or more audio frames (FIG. 3 (i)). reference).

[4] Content of Allocation Map Table Next, the allocation map table 11 of FIG.
The contents of 05 will be described with reference to FIG.

As described above, the recording area of the DVD-RAM disc is divided into a plurality of sectors, and logical sector numbers (LSNs) are sequentially assigned in ascending order from the inner circumference side.

Now, an information storage medium (optical disc 100
Consider a case where video information is recorded in the data area 1004 of 1) by the following procedure.

1. Information storage medium (optical disc 1001)
Logical sector number a + in the data area 1004 at
The AV file 14 in the continuous area from 1 to g (a <g)
01 Recording area is secured.

2. A continuous area (b <c) from logical sector numbers b + 1 to c in the recording area of the AV file 1401
The data of VOB # 1-1461 is recorded in.

3. A continuous area (d <e) from the logical sector number d + 1 to e in the recording area of the AV file 1401
The data of VOB # 2-1462 is recorded in.

The above 1. To 3. Results of processing up to AV
In the file 1401, three unrecorded areas of logical sector numbers "a + 1 to b", "c + 1 to d", and "e + 1 to g" remain.

Next, when video information of VOB # 3 having a large data size is recorded in this unrecorded area, 4. The data of VOB # 3 is divided into a plurality of pieces according to the size of the unrecorded area in the recording area of the AV file 1401.

5. The first data 1463 of the divided VOB # 3 is recorded in a continuous area (a <b) from logical sector numbers a + 1 to b.

6. Next data 1 of divided VOB # 3
464 is recorded in a continuous area (c <d) from logical sector numbers c + 1 to d.

7. The last data 1465 of the divided VOB # 3 is recorded in a continuous area (f <g) from logical sector numbers f + 1 to g.

As a result, the unrecorded area 1 of the logical sector number "e + 1 to f" is stored in the AV file 1401.
The processing that 460 remains is required.

The above 1. To 7. FIG. 4 shows the physical recording position distribution of each VOB in the AV file 1401 obtained as a result of the processing up to.

As can be seen from the above description, when data in the AV file 1401 is partially erased or new data is additionally recorded in an unrecorded area in the AV file 1401, VOB # 3 1463, 1464, 146
As in the example of No. 5, one VOB data needs to be distributed and recorded at a plurality of locations.

Information showing the physical recording position distribution of each VOB of each data distributedly recorded in the same AV file 1401 is the allocation map table 1105 shown in FIG. 1 (f).

In the example shown in FIG. 4, an unrecorded area 1460 is provided for real-time recorded data (still image object etc.).

However, such an unrecorded area is not limited to exclusive use for data such as still picture objects. For example, the control information 1011 in FIG. 1D or the R in FIG.
An unrecorded area as illustrated in FIG. 4 can be provided for the contents of TR_VMG (management information).

In this way, if the unrecorded area can be set in the control information (management information) as appropriate, even if a part of the management information is deleted by editing or the like, the other parts of the management information are not touched. Management of information can be simplified. As a result, the buffer memory size on the playback device side required for the management information can be greatly saved.

FIG. 5 shows the information contents of the allocation map table 1105 when the data arrangement of FIG. 4 is used as a specific example.
Shown in. The allocation map table 1105 is composed of position distribution information 1621 of unrecorded areas and data recording position distribution information 1622, 1623, 1624 for each VOB.

A block in which a continuous sector number connection is secured in each VOB is defined as an "extent".

In the embodiment shown in FIG. 4, VOB # 3 data is recorded in three groups. In the above example, since the logical sector numbers (LSN) a + 1 to b have a continuous sector number connection, this area constitutes the extent # γ1473. That is, VOB #
The position where the data of No. 3 is recorded is extent # γ
1473, extent # δ 1474, extent #
It will be distributed at three locations of ε1475.

The position distribution information regarding the unrecorded area and individual VOBs in the allocation map table 1105 shown in FIG.
02, 1603, and 1604 are recorded. afterwards,
Start addresses 1606 and 1607 for each extent,
1608, 1609, 1610, 1611 and their extent sizes 1614, 1615, 1616, 161
7, 1618 and 1619 are recorded.

The start address is a "difference number" from the start sector number (logical sector number) of the AV file 1401.
(Or the relative number of sectors). Expressing the difference number in this way makes it unnecessary to change the information in the allocation map table 1105 when the entire contents of the AV file 1401 is ported to another information storage medium, thus improving portability of the file.

In FIG. 5, the extent size is represented by the number of sectors, but as another method, the extent size can be represented by the final address of the extent.

In the DVD-RAM disc (or DVD-RTR disc) standard, the physical address on the information storage medium (optical disc 1001) is the physical sector number (P
SN). The entire address handled by the file system is indicated by a logical sector number (LSN). On the other hand, the address defined on the file system in the data area 1004 of FIG. 1A is distinguished as the logical block number (LBN).

However, if the above description method (a description method in which PSN, LSN, and LBN are strictly distinguished) is faithfully followed, the description content becomes complicated. Therefore, in FIGS. 4 to 5, importance is attached to the ease of understanding, and the description is given using the expression of the logical sector number (LSN).

The information storage medium (1001 in FIG. 1) used in the management system according to the present invention has a first recording area (1011 in FIG. 1d) for recording predetermined control information (RTR_VMG) and a still image. A second recording area (1013 in FIG. 1d) for recording data can be provided. In at least one of the first recording area (1011 in FIG. 1d) and the second recording area (1013 in FIG. 1d) (that is, in the first and / or second recording area), an unrecorded area (in FIG. 4). 1460) can be set.
The position distribution of the unrecorded area on the information storage medium can be specified by the position distribution information (1621 in FIG. 5).

[5] Contents of reproduction control information 1021 Contents of the reproduction control information 1021 will be described with reference to FIGS. 6 and 7. The program chain PGC control information 1103 in the reproduction control information 1021 has the data structure shown in FIG. 6, and the reproduction order is determined by the PGC and the cell.
PGC indicates a unit for executing a series of reproductions in which the reproduction order of cells is designated. A cell indicates a reproduction section in which reproduction data in each VOB is designated by a start address and an end address as shown in FIG.

The program chain control information 1103 is
PGC information management information (or PGCI management information) 105
Search pointer for two or more PGC information (or P
GCI search pointer) 1053, 1054, and P
It is composed of GC information (PGCI) 1055, 1056, and 1057.

The PGC information management information (or PGCI management information) 1052 includes information (PGCN) indicating the number of program chains PGC. PGC information search pointer (or PGCI search pointer) 1053,
Reference numeral 1054 points to the beginning of each PGC information (PGCI) to facilitate the search.

PGC information (PGCI) 1055, 105
6 and 1057 are PGC general information (PGC_G
I) 1061, one or more program information (PGI #
m) includes one or more cell IDs (or cell information search pointers CI_SRP # m) and one or more cell information (CI # n).

PGC general information (PGC_GI) 1061
Includes information indicating the playback time of the PGC and the number of cells (the number of cell playback information).

Alternatively, the PGC general information 1061 includes information (PG_Ns) indicating the number of program PGs and information (CI indicating the number of cell information search pointers CI_SRP).
_SRP_Ns).

As shown in FIGS. 7A and 7B, the reproduction data is designated as a cell in the reproduction section from cell A to cell F, and PGC information is defined in each PGC.

1. PGC # 1 shows an example including cells in which continuous playback sections are designated, and the playback order is cell A → cell B → cell C.

2. PGC # 2 shows an example composed of cells in which intermittent playback sections are designated, and the playback order is
Cell D → cell E → cell F.

3. The PGC # 3 shows an example in which reproduction is possible irrespective of the reproduction direction and the overlap reproduction, and the reproduction order is cell E → cell A → cell D → cell B → cell E.

The control information (RTR.IF) shown in FIG.
O) 1011 is the control information 1 as shown in FIG.
It includes navigation data RTR_VMG (real time recording / video manager) corresponding to 101 and 1021. And this RTR_VM
G indicates the video title set information VTSI (or the information RTR_V of RTR_VMG) as shown in FIG.
MGI) 1106 is included.

This information (RTR_VMGI) 1106
Contains information used when reproducing the sequence of VOBs 1403, 1404, 1405, ... Of FIG.

Hereinafter, referring to FIG. 8, RTR_V of FIG.
The MG (or RTR.IFO in FIG. 2), the data structure and its contents will be described.

As shown in FIG. 8, the navigation data RTR_VMG (control information RTR.IFO) is the RTR.
Video manager information (RTR_VMGI), movie AV file information table (M_AVFIT), still image AV file information table (S_AVFIT),
Original PGC information (ORG_PGCI) and user-defined PGC information table (UD_PGCI)
T) and a text data manager (TXTDT_M
G) and a table of information about the manufacturer (MNFIT)
It consists of and.

RTR_V included in this RTR_VMG
MGI is the video title set (VTS) of Fig. 1 (f).
It corresponds to the information 1106.

This information (RTR_VMGI) 1106
As shown in FIG. 8, VTS general information 1751 and VTS
OB sequence information 1752 and PTT information 1753
And a VTS time map table 1754.

This information (RTR_VMGI) 1106
From another perspective, the VOB sequence information 175
2 corresponding to the playlist search pointer table (P
L_SRPT) and the video manager information management table (VMGI_MA) corresponding to the VTS general information 1751.
T) and are included.

This PL_SRPT is the VOB in the VTS.
(Or the number of playlist search pointers and PL_
SRPT end address) information 1756 and VOB
Information 17 of ID (or first playlist search pointer PL_SRP # 1) of first VOB in sequence
57 and the ID of the second VOB in the VOB sequence
(Or the second playlist search pointer PL_S
RP # 2) information 1758 and the like.

Each playlist search pointer (PL_S
RP is information (PL_T) indicating the format of the playlist.
Y), PGC number information (PGCN) corresponding to this playlist, information (PL_CREATE_TM) of the date and time when this playlist was created, and primary text information (PRM_TX) related to this playlist.
TI) and the search pointer number information (IT_TXTI_S) of the item text used in this playlist.
RPN) and thumbnail pointer information (THM_PTRI) indicating a reduced image (thumbnail picture) corresponding to the recorded content of this playlist.

Information 1756, 1757, 1 as described above
A table (PL_SRPT) including 758, ...
Corresponds to VOB sequence information 1752 included in SI (RTR_VMGI) 1106.

This VTSI (RTR_VMGI) 110
The contents of 6 are summarized as follows: [6] Video title set information (VTSI or R)
TR_VMGI) 1106 content Video title set information (VTSI or RTR_
The data structure in the VMGI) 1106 is as shown in FIG. 8: Video title set general information 1751 ... Information about general content items of the video title set (or RTR data of the AV file 1401 of FIG. 2); 1752 ... Fig. 3
In the data structure of, the video title set 1402 (= A
A serial order is set for all VOBs in the V file 1401), and each VO in accordance with this sequence is set.
The order information of B is described here; -Part of title information 1753 ... AV file 1
Each object data recorded in 401 is grouped by related data for the purpose of data management and search, and a video title name is set for each group. The group (Part of Title PTT) is VO
It is composed of B aggregates. This part of title PT
VOB information included for each T is described here; Video title set time map table 1754
The VOBU position information for each specific time interval according to the above video object sequence is recorded for VOBs classified into video objects 1012 and audio objects 1014 in the video title set 1402.

Video object sequence information 175
As shown in the right side of FIG. 8, the concrete data structure in 2 is the total number of VOBs included in the video title set (or the playlist search pointer information PL_SR).
(PTI) 1756 is recorded. Thereafter, according to the sequence order of the video objects, VOB_IDs 1757, 1758, ... (Or PL_SRP # 1, # 2, ... #n) of the corresponding VOB are recorded in order.

Video object sequence information 175
The sequence indicated by 2 is, for example, “AV file 1
The recording order to the 401 (the order of the recording time is earlier), the “recording sequence order on the information storage medium (optical disk) as shown in FIG. 4”, the “VOB size order”, and the like. It can be set arbitrarily on the device side.

By sequentially ordering all VOBs in the video title set VTS 1402, 1
It is possible to provide a user interface similar to a VTR that records an image on a tape of a book.

For example: -Fast forward (FF) and rewind (FR) of the tape to find the desired location-Fast forward (FF) of the tape to check the entire recorded contents-Fast forward (FF) and rewind (FR) of the tape ), The video object sequence information 175 is used to search for an unnecessary location that has already been recorded, and overwrite new video information in the unnecessary location.
2 can be used.

The contents of the video object sequence information 1752 shown on the right side of FIG. 8 will be described with reference to FIG.

First, an information storage medium (optical disc 100
1) VOB # 1 to VO in the state shown in FIG.
B # 3 is recorded, and this recording order is the same as in 1. described in "[4] Allocation map table contents". To 7. Consider the case in which the order is followed.

The sequence order array in the case where the sequence order is set for these data in the "recording order in AV file 1401 (order of recording time earlier)" is shown in FIG.
3) becomes. Comparing this figure with FIG. 4, it can be seen that the arrangement order from extent # α1471 to extent # ζ1470 has changed.

The "first VOB_ID 1757 in the video object sequence" in FIG. 8 specifies "VOB # 1 1461" in FIG. 9 (a3), and the "second VOB_ID 175 in the video object sequence" is specified.
8 "designates" VOB # 2-1462 "of FIG. 9 (a3).

FIG. 9B3 shows another embodiment specified by the video object sequence information 1752.

VOB # A-1771, VOB # B-17
72 is a video object (movie VOB information M_V
OBI #) 1012 (classified), VOB # C
1773, VOB # F / 1776, VOB # G / 177
7 belongs to the audio object 1014 (classified), and VOB # D / 1774 to VOB # G / 1777 are picture objects (still image VOB group information S_
VOGI #) 1013.

In this way, the sequence order can be specified in a mixed manner regardless of the type of VOB. In FIG. 9, the VOBs (VOs) that belong to the thumbnail object 1016 are summarized at the end.
B # H-1778 and VOB # I-1779) are set.

[7] Recording Format of Still Image Information (Picture Object) Information storage medium (optical disc 100) shown in FIG.
1) A recording format (recording format) for recording still image information on the recording medium will be described below.

The still image information or audio information added later to the still image information (the description of each individual still image information is input by voice and is additionally recorded by after recording) is the picture of FIG. 1 (d). Object 1
013 or the location of the audio object 1016.

This still image information recording format corresponds to the case where a plurality of still images photographed by a digital camera or the like are recorded on the information storage medium (optical disc 1001) at a time, and a plurality of still images are recorded. Can be recorded continuously. In order to enable this continuous recording, at least two still images are recorded on the information storage medium (optical disc 100).
1) The format is such that it is recorded next to the adjacent location above.

This still image information recording format follows the data structure shown in FIG. 3 with emphasis placed on the format continuity and consistency of the still image or audio information added to the still image with the video information (video object 1012). is doing.

MPEG1 or MP, which is a kind of video information recording format (video information compression format)
In EG2, the compression information for one video frame corresponding to the above-mentioned GOP head position exists in the form of "I-picture".

The input still image is MPEG1 or M
I-picture 1706 using the compression technology of PEG2,
1707, 1708, 1709, and converted into FIG.
3) or as shown in FIG. 10 (c3), V_PCK
(Video Pack) 1661, 1662, 1663, 166
8, 1669, 1670, 1671, 1672, 1673, 1
An information storage medium (optical disc 100
1) Recorded above.

As described above, the DVD-RAM (DVD
In the _RTR disc, each V_PCK (video pack) is recorded in each sector having a recording size of 2034 bytes (see FIG. 3 (f)). (1 sector size is 204
Although it is 8 bytes, since there is a pack header every 14 bytes, the recording amount in one pack is 2034 bytes. ) The I-picture size corresponding to one piece of still image information is 20.
Dummy information 1704 is recorded in a portion that is insufficient for an integral multiple of 34 bytes. This allows each I-picture to fit snugly within an integer sector.

I-picture size 180 in each VOBU
8 is a VO for picture object as shown in FIG.
Since it is recorded in the information of the BU map (details will be described later), the dummy information 17 is recorded from anywhere in V_PCK1670.
I know if 04 will come in. Therefore, the dummy information 1704
The content of can be set arbitrarily.

As the contents of the dummy information 1704, in addition to the padding data set to all “0” or all “1”, the sequence end is specified as specific information which is known as “dummy” only by reproducing the part. A code (or a packet header of stream ID = 0xbe) can be recorded.

Note that FIG. 10 (b3) and FIG. 10 (d)
Although the arrangement of I-pictures is omitted in 3), they have the same structure as in FIGS. 10A3 and 10C3.

For example, when a still image is taken with a digital camera and a comment is to be added directly by hand on the taken image (still image), the information is recorded as an I-picture in V_PCK. Separately, a sub-picture pack (SP_PCK) as a sub-picture stream
Comment contents can be recorded in 1681, 1683, and 1684.

During reproduction, I-picture still image information in V_PCK and sub-picture (sub-picture) in SP_PCK
Overlapping information is displayed.

The voice information obtained by voice-inputting comments and explanations for each still image is audio pack (A_PCK).
It is recorded in 1691 to 1702.

As described above, the V_PCK information 1661 to 16
74, SP_PCK information 1681 to 1684, A_PCK
Information 1691 to 1702 is collected for each related still image, and is collected in units of VOBU (video object for picture object) 1641 to 1650. Therefore, in the format shown in FIG. 10, different VOBUs are formed for each still image.

In the embodiment shown in FIG. 10, V_PCK and SP_PCK always precede A_PCK in the VOBU. As a result, each pack is separated in the VOBU, and the management of the information in each pack is facilitated.

However, in the embodiment of the present invention, the video object 1 is not limited to the above limitation.
A_PCK, V_P like the recording format in 012
The order of CK and SP_PCK can be mixed and arranged.

More specifically, all the V_PCK 1664 having the still picture information recorded in the I-picture format need to be arranged in the same VOBU 1642, but a part of the audio information related to the VOBU 1642 is required. The recorded A_PCK (1694) is the next VOBU16.
It is also allowed to be placed in 43.

As will be described later in the description of FIG. 13, the reproduction end time (E_PTM) 181 of the audio information recorded in the VOBU map 1738 for picture objects.
This is because continuous audio information can be separated corresponding to each still image using the information of No. 4.

In the format structure shown in FIG. 10 as a format in which a plurality of still picture information is continuously recorded, 1) one VOB is formed from a plurality of VOBUs; 2) one VOB is one VOBs having only VOBUs, each of which records one still image, are grouped to form a video title VTT; the two methods are allowed, and mixed recording of both is permitted.

FIGS. 10 (b1) to 10 (d3) show the former format structure (1), and FIG. 10 (a) shows the latter format structure (2).

The former format structure (1) is shown in FIG.
10B shows a basic structure, and as a special example, FIG. 10C shows a structure that does not include voice information (A_PCK), FIG.
Indicates a structure that does not include the original still image (V_PCK).

After recording a plurality of still image information which does not include audio information and is photographed by a digital camera on the information storage medium (optical disc 1001) at a time, each still image is observed while viewing the recorded plurality of still image information. Memo input (additional recording as SP_PCK) or voice input (A_
It may be additionally recorded as a PCK).

In this case, the VO in which only the additional information (memo or audio format) is collected and the original still image information is recorded.
It is possible to edit and record efficiently by forming a VOB different from B and recording it on the information storage medium (optical disc 1001). This is because it is not necessary to change the content of the VOB in which the original still image information is recorded when the VOB is recorded as another VOB.

[0143] Thus, a VOB in which only additional information (memo or audio format) for the purpose of editing still image information is collected.
The recording format in 1634 has a structure (A_PCK and SP_PC that does not include V_PCK) similar to that in FIG.
(K data only).

10 (a3) and 10 (c).
The I-picture in 3) corresponds to the I-picture in FIG. 3J, and the dummy in FIGS. 10A3 and 10C3 corresponds to the dummy pack DM_PCK in FIG. 3F.

The video pack V_PCK, sub-picture pack SP_PCK and audio pack A_PCK shown in FIGS. 10 (a1) to 10 (d3) are respectively shown in FIG. 3F.
Corresponding to V_PCK, SP_PCK and A_PCK.

The dummy pack DM_P of FIG. 3 or FIG.
The CK can be appropriately used for audio data recording of after-recording and other purposes. For example, when the size of the encoded I-picture data block is not an integer multiple of the block size (16 sectors, 32 kbytes) of the error correction code (ECC) using the product code, the I-picture data block size is DM_PCK can be appropriately added to this data chunk so that is an integer multiple of 32 kbytes.

If all the data chunk sizes of I-pictures forming a still image are matched in ECC block units (integral multiple of 32 kbytes) by adding DM_PCK, the following merits are brought about.

For example, when a part of a still picture group continuously recorded on the medium of FIG. 1 is to be replaced (or erased) with another still picture later, the still picture (I Even if the size of the original picture is different from the size of the original still image, since it is in ECC block units, the ECC block unit of the I-picture of the part that is not replaced (the part that is not erased) remains the same.

Therefore, even if a part of the still image group is replaced (or erased) with another still image later, it is not necessary to re-code ECC of the I-picture of the part which is not replaced (the part which is not erased). . Since the operation of the RTR recorder becomes faster because the ECC coding is not required to be redone, it is possible to smoothly edit the still image group after recording (replacement of some still images, erasing, etc.).

However, when the size of the still image to be replaced is larger than the size of the original still image, part of the data of the still image to be replaced is moved to another recording location and recorded. In other words, the fragmented fragment (fragment
ation) occurs. When the seek speed of the disk drive for reading data from the medium of FIG. 1 is slow, it may take some time to reproduce a still image with fragmentation. Therefore, an RTR without a high speed drive
When the recorder is used for still image reproduction, it is better to rearrange the recorded data (re-record so that fragmentation disappears) as appropriate after the still image group is edited.

When the latter format (2) is adopted as a format in which a plurality of still picture information is continuously recorded, a plurality of VOBs are grouped as shown in FIG. Title VTT1
They belong to the groups 407 and 1408.

In the recording format shown in FIG. 10, at least two still images are recorded on the information storage medium (optical disc 100).
1) It is possible to continuously record in adjacent locations on the above, and generally in a format in which a plurality of still images can be continuously recorded. Therefore, for example, when a plurality of still images taken by a digital camera are recorded on the information storage medium (optical disc 1001) at a time, it has a great effect / feature that it can be recorded at high speed.

Besides, the recording format capable of recording a plurality of still images in the VOB has a great effect as described below.

Conventionally, the recording format of a plurality of still images photographed by a digital camera is divided and recorded in different data files one by one. When each still image information is divided and recorded in different files, there is no shooting order information between each still image information and grouping information between similar still image information. On the other hand, photographic film always comes with a negative film (or a positive film that is created as needed). Therefore, when it is desired to specify a specific still image for reprinting, it is possible to search the still image on the negative film while following the shooting order.

In the information recording / reproducing apparatus (video recorder) for recording video information shown in FIG. 19, the information of the picture object video object 1632 recorded on the information storage medium (optical disc 1001) is read, and the information shown in FIG.
Each VOBU1642 like a positive film as shown in
It can be displayed on the screen in the order of arrangement of 1644.

For example, the still image at the left end of FIG. 11 is VOBU.
1642 information, the still image in the center is VOBU164
The information of 3 is displayed. The still image in FIG. 11 can be moved left and right on the screen, and the user specifies the still image to be edited (or hard copied). Unlike the video object 1012, the still image information uses the display as shown in FIG. 11 to specify each still image. (The video object 1012 specifies the video information range to be edited according to the display time.) [8] Data Structure in Video Object Information Regarding Still Image Information Next, the data structure in the video object information regarding still image information will be described.

The video object information (or AVFIT) 1107 shown in FIG. 1F is a management information part (M_AVFIT in FIG. 8) related to general video information and a management information part (S_AVFIT in FIG. 8) related to still image information.
Is divided into The data structure in the management information portion relating to the latter still image information has the structure shown in FIG.

Navigation data RTR_VM of FIG.
Still image AV file information table (S_A included in G
VFIT) is a still image AV as shown on the left side of FIG.
File information table information (S_AVFITI) and stream information of still image VOB (S_VOB_STI # 1)
~ # N) and still image AV file information (S_AVFI)
, And additional audio stream information (S_AA_STI # 1 to #m) for the still image, and additional audio file information (S_AAFI) for the still image.

Still image AV file information (S_AVFI)
12, VOB information for picture object management information (or general information S_AVFI_GI of S_AVFI) 1721 and search pointer # 1 for VOB information for picture object (or search pointer for still image VOB group information) S_VOGI_S
RP # 1) 1726 to #i (S_VOGI_SRP #
i) 1727 to #k (S_VOGI_SRP # k) 17
28 and picture object VOB information # 1 (or still image VOB group information S_VOGI # 1) 173
1 to #i (S_VOGI # i) 1732 to #k (S_V
OGI # k) 1733 and the like.

VOB information for picture object #i
(Or still picture VOB group information S_VOGI # i)
1732 has the contents shown on the right side of FIG. 12 (similar to VOB information for picture objects # 1 and #k).

That is, the VO for each picture object
The B information #i (or S_VOGI # i) is the VOB general information (or general information S_VOG_GI) 1736 of the picture object, the VOB attribute information 1737 of the picture object, and the VOBU map of the picture object (or 1 or more). Still image VOB entry S_VOB_ENT #) 1738.

Here, S_VOG_GI is the number of VOBs (S_VOB_Ns), the still picture VOB stream information number (S_VOB_STIN), and the time information (FIR) when the first VOB in this VOB group was recorded.
ST_VOB_REC_TM) and time information (LAS) when the last VOB in this VOB group was recorded.
T_VOB_REC_TM) and the start address (S_VOG_S) of this VOB group in the still image AF file.
A) and are included. This S_VOG_SA is S_A
The relative address from the beginning of the VFI is expressed in sector units.

On the other hand, each S_VOB_ENT # has four types (type 1 to type 4) and has the following contents: (1) S_VOB_ENT of type 1 is a VO of a still image.
Information indicating the format of the B entry (S_VOB_ENT_T
Y) and information (V_PART_SZ) representing the size of the video part in the still image VOB in sector units.

(2) Type 2 S_VOB_ENT is
Type 1 S_VOB_ENT_TY and V_PAR
In addition to T_SZ, information (A_PART_SZ) indicating the size of the original (original) audio part in the still image VOB in sector units, and information indicating the playback time of this audio part in video field units (A_P
B_TM). When the actual playback time of the audio part does not match the boundary of the video field, the part of the end data of the audio part that is out of the video field is truncated.

(3) Type 3 S_VOB_ENT is
Type 1 S_VOB_ENT_TY and V_PAR
In addition to T_SZ, additional audio group number information (S_AAGN) included in the audio stream added to the still picture VOB, and entry number information (AA_A) corresponding to the additional audio stream for this still picture VOB.
And ENTN).

(4) Type 4 S_VOB_ENT is
Type 2 S_VOB_ENT_TY, V_PART_
In addition to SZ, A_PART_SZ and A_PB_TM, type 3 S_AAGN and AA_ENTN are included.

The types 1 to 4 of S_VOB_ENT are all S_VOB_ENT_T of type 1.
Y and V_PART_SZ are included in common.

Note that each S_AA_STI on the left side of FIG.
(# 1 to #m) include audio attribute information of the additional audio stream. From this point of view, S_
AA_STI corresponds to the VOB attribute information 1737 on the right side of FIG.

The individual still image information grouped into separate video objects for picture objects (VOBs for picture objects) is the video object information for picture objects (or S_VOG) in FIG.
I # 1 to S_VOGI # k) 1731 to 1733.

The information contents shown on the right side of FIG. 12 will be briefly described below.

The information 1732 of FIG. 12 includes the following information: * VOB general information for picture object (or S_
VOG_GI) 1736 ... For example, cell reproduction information (CI in FIG. 1 or S in FIG. 23)
_CI) ID information uniquely set for each VOB so that a specific VOB can be designated in 1108; VOB type information ... Which information of (a) to (d) in FIG. 101
2) / still image information (picture object 1013) /
Which of the audio information (audio object 1014) is the VOB, the date and time when the VOB was recorded on the information storage medium (optical disc 1001), etc. * VOB attribute information for picture object 1737 ... Attribute information of audio information; Attribute information of audio information; Number of sub-picture information and recording format; * VOBU map 1738 for picture object ... Information about all still images included in VOB.

The above information * is recorded.

Also, in the management information 1721 of the video object information for the picture object, the number of VOBs for the picture object contained in this AV file, the general information about the VOB contained in this AV file, and the like are recorded. Has been done.

Also, the address information of where in the video object information 1107 shown in FIG. 1F the respective video object information for picture objects 1731 to 1733 is recorded is the video object information for picture object. Search pointer 1
726-1728.

[9] Data Structure in VOBU Map for Still Image Information Next, referring to FIG. 13, a VOB for picture object is used.
The data structure in the U map 1738 will be described.

At the beginning of the VOBU map (S_VOB_ENT #) 1738 for the picture object, FIG.
, The number of still images included in the corresponding VOB (the number of VOBUs; or the number of this VOB S_VOB_
Ns) 1801 is described.

After that, in accordance with the order of arrangement in the VOB, information (1) about each still image (contents of VOBU)
802, 1803, 1804, ...) are described.

The information shown on the right side of FIG. 13 is recorded as information (eg, 1803) on each still image (contents of VOBU).

In FIG. 13, the information of VOBU 1411 (FIG. 3 (e)) having one piece of still picture information including audio information is, for example, as shown in FIG. 3 (f), a plurality of sectors 1431 to 1434. It is divided and recorded in. The data size (V_PART_SZ and / or A_PART_) for this one piece of still image information (VOBU)
SZ) 1806 can be represented by the number of dividedly recorded sectors.

For a VOBU having an audio pack A_PCK inside as shown in FIGS. 10A and 10B, the display time 1807 of one still image is VOBU.
Means the playback time of the audio information in the VOBU that does not have the audio pack A_PCK as shown in FIG.
Indicates a still display period of a still image.

VOB in which still picture information is recorded
The following information (FIG. 13) is recorded as information on the still image information itself in U.

* First V_PCK in the corresponding VOBU
Address (or S_VOG_SA) 1808 ... Fig. 1
Taking 0 as an example, V_PC located at the beginning of each VOBU
K1661, 1664, 1665, 1666, 1667, 1
Address information such as 668, 1671, 1674 is recorded. When the ID of the VOB containing the still image to be viewed and the still image number (VOBU number) in that VOB are specified, the optical head (not shown) uses this address information to start V_PCK of the corresponding VOBU. Access the address directly.

Generally, as address information, LSN (logical sector number) indicating a direct position on an information storage medium (optical disc 1001) as shown in FIG. 4 is used. However, the application method is not limited to this address display method, and there are other application examples. For example, as shown in FIG. 9 (a3), the addresses on the medium may be displayed by the number of sectors (relative address) counted in the sequence order from the start address of the same VOB according to the sequence order of the data.

* I-picture size 1809 in the corresponding VOBU ... As described in FIG. 10 (a3) and FIG. 10 (c3), 2034 bytes, which is the pack size of the data sizes of the I-pictures 1706 and 1707. Dummy information 1704 is recorded in a portion that is insufficient for an integral multiple of.

Therefore, if the I-picture size is known in advance, the location where the dummy information 1704 is recorded can also be known, so that the access operation to the next location can be started without reproducing this portion during reproduction. . Then, high-speed playback can be realized.

* Play (presentation) start time (S_PTM) of still image (V_PCK & SP_PCK) 1
810 This means information indicating the display timing of the still image at the time of reproduction and the sub-image added thereto. According to the present invention, at the time of reproduction, the still image recorded in V_PCK and the sub-picture added thereto are displayed simultaneously. It is used to set the display timing with the audio information in the same VOBU.

* First system clock (First_SCR) 1811 of still image (V_PCK) ...
In order to record on the information storage medium (optical disc 1001),
It means the value of the system clock when the first V_PCK in the VOBU is created, and this information is used when performing seamless (continuous) reproduction.

Next, the following information is recorded as the information regarding the audio information in the VOBU in which one piece of still picture information is recorded.

* Start A_PCK address 18 in VOBU
12 ... This is, when taking FIG. 10 as an example, A_PCK1691, 1693, 1694, 1 located at the head of each VOBU.
Address information such as 695, 1696, 1699, 1702 is recorded. When the ID of the VOB containing the still image to be viewed and the still image number (VOBU number) within that VOB are specified, the optical head (not shown) uses this address information to start the corresponding A_PCK of the corresponding VOBU. Access the address directly.

As shown in FIG. 14C, according to the present invention, audio information (A_PCK information) in one VOB is converted to another VOB.
It can be displayed in combination with still image information belonging to OB. Therefore, this information is used when selectively reproducing only the audio information in the VOB.

* Playback (presentation) start time (S_PTM) 1813 of audio information (A_PCK) ... This means information indicating the output timing of audio information during reproduction. In most cases, this value is a still image (V_PCK &
SP_PCK) S_PTM1810. But,
After displaying the still image screen, a certain time (for example, 0.5
If you want to output the sound after (seconds) has elapsed, this value can be intentionally shifted and set.

As described above, this information can be used for the timing control between the still image display and the audio information output.

* Playback end time (E_PTM) 1814 of voice information (A_PCK) ... This means information indicating the timing at the end of output of voice information during playback, and is between the still image display and the voice information output. This information is used for timing control.

In many cases, this value matches the S_PTM 1810 of the still image (V_PCK & SP_PCK) to be displayed next. However, when it is desired to display the still image information to be displayed next only after the elapse of a specific time (for example, 0.5 seconds) after the end of voice output, this value can be intentionally shifted and set.

* First system clock reference (First_SCR) 181 of audio information (A_PCK)
5 This means the value of the system clock when the first A_PCK in the VOBU was created for recording on the information storage medium (optical disc 1001), and this information is used when performing seamless (continuous) reproduction. It

* The last system clock reference (Last_SCR) 1816 of the audio information (A_PCK)
This means the value of the system clock when the last A_PCK in the VOBU was created for recording on the information storage medium (optical disc 1001), and this information is used when performing seamless (continuous) reproduction. .

The contents corresponding to A_PB_TM mentioned in the description of S_VOB_ENT of FIG.
It can be represented by a pair of rst_SCR and Last_SCR.

By recording the reproduction time information (PTM information) and the system clock reference information (SCR information) relating to the still picture information and the audio information in this way,
There is a feature that the video information belonging to the video object 1012 of (d) can be used as a part of the still image information.

That is, the video information itself belonging to the video object 1012 is not processed at all, and new video object information (S_VOB) for a picture object for a still image is defined as shown below.

Here, a case will be described in which a still image whose display is switched, for example, every 2 seconds is defined with respect to the conventional video information (video object 1012).

Generally, 1 GOP is used for MPEG video information.
Since the required time is about 0.5 seconds, the length of one VOBU shown in FIG. 3 (e) is often around 0.5 seconds. Then, 2 seconds (still image switching interval) ÷ 0.5 seconds (VO
BU interval) = 4, the I-picture at the beginning of the GOP is regarded as a still image for every four VOBUs, and the information of the leading V_PCK address 1808 in the VOB and the I-picture size 1809 in the VOB is set. .

Along with this setting, numerical values of each information on the right side of FIG. 18 are similarly set.

As a result, as shown in FIG. 14, different V
By displaying the still image information belonging to the OB (VOB # A, VOB # B) in combination with the audio information, only the audio part in the video information belonging to the video object 1012 is output as audio when the still image is displayed, or the video object is displayed. It is possible to convert only the scenes that the user likes in the video information belonging to 1012 into a still image and display the still image.

[10] Method for displaying a plurality of still images Next, a method of displaying a plurality of still images will be described.

As a method of displaying the information of a plurality of still images recorded on the information storage medium (optical disc 1001), a method of displaying a plurality of images side by side at a time as shown in FIG. 11 (however, the still images displayed side by side do not move. There is a method of changing the still images to be displayed at a specific time by setting one still image to be displayed at a time. In either case, the cell and PGC information are used in the data structure as shown in FIGS. 6 and 7, and the user can select the display method by the information recording / reproducing apparatus (DVD_RTR video recorder) for recording video information shown in FIG. It is like this.

Similar to the video object information 1107,
Cell reproduction information (or CI) 110 shown in FIG.
8 is the cell reproduction information (M_C
I) and cell reproduction information (S_CI) regarding still image information.

[0207] Cell reproduction information (S_C
In I), as shown in FIG. 14, the still image and the audio information can be reproduced from different places and combined and displayed.

That is, as shown in FIG. 14C, the V_PCK 1852, 1854 and the SP_PCK 1848 used for the display in the cell specify the still images 1832, 1834 in the VOB # A 1821 and output them from the same cell. The voice information is VOB # different from VOB # A ・ 1821.
The voice information 1845 and 1846 in B1822 can be designated.

[0209] This structure is suitable for the after-recording setting for still images. For example, still image information captured by a digital camera without a voice input function is directly stored in an information storage medium (optical disc 1001).
When recorded in, the recording result has a structure not including the audio pack A_PCK as shown in FIG. 10 (c3).

While reproducing the information and displaying it on the screen as shown in FIG. 11, commentary or comment is added to each sheet by "voice input by microphone", "overwriting of handwritten marks", "key". Consider the case of adding by adding text information by input ”.

In this case, the recording format is as shown in FIG.
When it is attempted to change the structure that does not include A_PCK in 3) to the structure that includes A_PCK as shown in FIG. 10B3,
Re-recording processing on the information storage medium (optical disc 1001) occurs. Then, the processing becomes troublesome and the processing time is significantly increased.

On the other hand, without modifying the data not including the audio pack A_PCK shown in FIG. 10 (c3), only the additional information is added to another VOB as shown in FIG. 10 (d).
If the data is recorded on the information storage medium (optical disc 1001) as 1634, the subsequent information addition process for the still image can be performed very easily and in a short time. In this case, at the time of display, the VOBs 1633 and VOB16 of FIGS. 10 (c1) and (d1) are displayed as shown in VOBs 1403 to 1405 of FIG. 3 (d).
34 are combined and displayed / output.

FIG. 15 shows the data structure in the picture object cell reproduction information (S_CI) that enables the expression of FIG.

First, ID information (or CI_SRP) 1873, which is an identifier unique to the cell, is described.

The cell type information (or C
_TY) 1880 is 1) cell information regarding video information (video object 1012) or still image (picture object 1013).
Identification information as to whether the cell information is about the cell information or the cell information about only the audio information (audio object 1014);
0 (b) to (d) format) cell information (corresponding to the structure of FIG. 15), or a VOB in which only one still image is recorded in the VOB (format of FIG. 10A) Identification information regarding information (corresponding to the structure of FIG. 16).

As described above, by absorbing the difference in the recording format of the VOB in which the still image is recorded at the level of the picture object cell reproduction information (S_CI),
Overcoming the difference in VOB recording format, at the PGC level shown in FIG. 7, both still images and moving images can be reproduced and displayed in the same sequence without distinction between still images (still) and moving image information (movie). There is a big feature here.

In the embodiment of FIG. 14, VOB # A.1821 is designated as the ID information 1874 of the VOB of FIG. 15 in which the video pack V_PCK is recorded. VO
When it is desired to display the second still image of B # A.1821, the still image number 2 of VOB # A.1821 is designated as the still image designation 1875 to be displayed first in the cell.
Further, according to the embodiment of FIG. 14, VOB # A.182 is added to the still image designation 1876 displayed last in the cell.
The still picture number h of 1 is designated.

As described above, the cell reproduction information for picture object (S_CI) has a great feature that "still picture" itself is designated as the designation object.

In the embodiment of FIG. 15, the "still image number" is designated as the method for designating a still image. However, the present invention is not limited to this, and "a unit in which a still image is recorded (for example, VOBU).
It is also possible to specify by "designation of itself", "designation of start address where still image is recorded", "sequence order in VOB", and the like.

In FIG. 15, the first and last still images in the cell are designated, but instead of the above display method, the first still image displayed in the cell and the total number of still images displayed in the cell. There is also a way to display.

Similarly, in FIG. 15, the VOB ID information 187 in which the audio pack A_PCK is recorded.
7 (in the embodiment of FIG. 14, VOB # B.1822 is designated), and voice information (A_PC) to be output first in the cell.
Still image number 1878 (in the embodiment of FIG. 14, the still image number j is designated) indicating the recording destination of K) is described.

By the way, in FIG. 15, the still picture number information indicating the recording destination of the audio information (A_PCK) output last in the cell is not described.

However, the still picture number 1875 displayed first in the cell and the still picture number 187 displayed last in the cell.
Since the total number of still images to be displayed in the same cell can be known from No. 6, the audio information (A_PC
The still picture number information indicating the recording destination of (K) is not required to be described.

When audio information is designated for all still images in FIG. 14C, S_ of audio information in FIG.
The display time per still image can be known from PTM1813 and E_PTM1814. On the other hand, when audio information is not designated for a specific VOBU, the display time of a still image is set using the information of the still display time 1879 per still image.

In FIG. 15, 1873 to 1876 correspond to the still image file (RTR_STO.VRO) in FIG. 2, and 1877 to 1879 correspond to the after recording audio file (RTR_STA.VRO) in FIG.

[11] Grouping / Display Method When Only One Still Image is Recorded in 1VOB Next, a grouping / display method when only one still image is recorded in 1VOB will be described. .

When only one still image is recorded in 1VOB (video object for picture object) 1631 as shown in FIG. 10A, V of a plurality of still images is recorded.
Collect OBs, group them, and treat them as a part of title.

The grouping information is the video title set information (or RTR_VMG) shown in FIG. 1 (f).
I) It is recorded in the part of title information 1753 shown in FIG. 8 in 1106.

The data structure in the part-of-title information 1753 relating to the still picture shown in FIG. 17 and the data structure in the VOB map 1899 for the picture object therein are the video object information (S_VOG) shown in FIG.
I #) and a structure similar to the data structure in the VOBU map (S_VOB_ENT #) for picture objects shown in FIG.

The structure of the picture object cell reproduction information (CI) in FIG. 16 corresponding to this is also S in FIG.
It has the same structure as _CI.

Next, an example of the information recording / reproducing apparatus (DVD_RTR video recorder) for recording video information will be described.

FIG. 19 is a diagram for explaining the block structure in the DVD_RTR video recorder.

The apparatus main body of the video recorder shown in FIG. 19 roughly includes an information storage medium (optical disk) 10
01 is driven to rotate, and this information storage medium (optical disk) 1
A disk drive unit for executing recording and reproduction of video information for 001, and an encoder unit 155 constituting the recording side
0, a decoder unit 1560 which constitutes the reproducing side, and a system control unit (MPU unit) 1530 which incorporates ROM (program memory etc.) and RAM (work memory etc.) inside and controls the operation of the apparatus main body. ing.

The encoder unit 1550 has an ADC (analog / digital converter) 1552, a video encoder (V encoder) 1553, an audio encoder (A encoder) 1554, and a sub-picture encoder (SP).
An encoder) 1555, a formatter 1556, and a buffer memory 1557 are provided.

The ADC 1552 has an AV input section 1542.
External analog video signal + external analog audio signal from the TV tuner 1544, or an analog TV signal + analog audio signal from the TV tuner 1544. This ADC
1552 digitizes the input analog video signal with, for example, a sampling frequency of 13.5 MHz and a quantization bit number of 8 bits. (That is, the luminance component Y,
The color difference component Cb (or Y-B or U) and the color difference component Cr (or Y-R or V) are quantized with 8 bits. ) Similarly, the ADC 1552 outputs the input analog audio signal to, for example, a sampling frequency of 48 kHz,
Digitization is performed with a quantization bit number of 16 bits.

When analog video signals and digital audio signals are input to the ADC 1552,
The ADC 1552 allows the digital audio signal to pass through. (The content of the digital audio signal is not changed,
A process that reduces only the jitter associated with digital signals,
Alternatively, processing such as changing the sampling rate or the number of quantization bits may be performed).

On the other hand, when a digital video signal and a digital audio signal are input to the ADC 1552,
The ADC 1552 allows the digital video signal and the digital audio signal to pass through (these digital signals may be subjected to the jitter reduction processing, the sampling rate changing processing, etc. without changing the contents).

When still image information from the digital camera 1543 is input in addition to the above video signal input, the information is directly input to the V encoder 1553 without passing through the ADC 1552.

The digital video signal component from the ADC 1552 is sent to the formatter 1556 via the video encoder (V encoder) 1553. In addition, ADC
The digital audio signal component from 1552 is sent to the formatter 1556 via the audio encoder (A encoder) 1554. Or V encoder 1
The still image signal directly input to the 553 is the V encoder 15
It is sent from 53 to the formatter 1556.

[0240] The V encoder 1553 has a function of converting an input digital video signal into a digital signal compressed at a variable bit rate based on the MPEG2 or MPEG1 standard.

Still image information is recorded in the digital camera 1543 in a format such as a bitmap format or a JPEG format. On the other hand, in this embodiment, a still image is recorded on the optical disc 1001 in the MPEG-2 I-picture format. Therefore, in this embodiment, “bitmap → MPEG2”, “JPEG
→ The V encoder 1553 has a format conversion function such as “MPEG2”.

The A encoder 1554 converts the input digital audio signal into MPEG or AC-3.
It has a function of converting into a digital signal (or a digital signal of linear PCM) compressed at a fixed bit rate based on the standard.

When a video signal is input from the AV input section 1542 (for example, DV with independent output terminal for sub-picture signal)
(Signal from D video player), or when a video signal having such a data structure is broadcast and received by the TV tuner 1544, the sub-picture signal component (sub-picture pack) in the video signal is a sub-picture. It is input to the encoder (SP encoder) 1555. SP encoder 15
The sub-picture data input to 55 is arranged in a predetermined signal form and sent to the formatter 1556.

The formatter 1556 uses the buffer memory 1557 as a work area, performs predetermined signal processing on the input video signal, audio signal, sub-picture signal, etc., and conforms to a predetermined format (file structure). Data processor 1536
Output to.

In the case of digital broadcasting, the video signal is MPE
It is transmitted in the G2 TS (transport stream) format. Generally, when a video signal is recorded in the information storage medium (optical disk) 1001 in the MPEG2 format, the PS (program stream) format is used. Therefore, when a digital broadcast is received, the received signal is directly sent from the TV tuner 1544 to the formatter 1556, and "TS → PS conversion" is performed in the formatter 1556.
Is done.

Here, the standard encoding process contents for creating the above-mentioned recording data will be briefly described. That is, when the encoding process is started in the encoder unit 1550 in FIG. 19, parameters necessary for encoding video (main image) data and audio data are set. Next, the main video data is pre-encoded using the set parameters, and the distribution of the optimum code amount for the set average transfer rate (recording rate) is calculated. In this way, the main video is encoded based on the code amount distribution obtained by the pre-encoding. At this time, audio data encoding is also executed at the same time.

As a result of the pre-encoding, if the amount of data compression is insufficient (if the desired video program does not fit on the optical disc 1001 to be recorded), there is an opportunity to pre-encode again (for example, the recording source is the video source). If the source is a repeatable source such as a tape or video disc, then a partial re-encoding of the main video data is performed and the re-encoded main video data replaces the previously pre-encoded main video data part. To be done. By such a series of processing, main video data and audio data are encoded,
The value of the average bit rate required for recording is greatly reduced.

Similarly, the parameters necessary for encoding the sub-picture data are set, and the encoded sub-picture data is created.

The main video data, audio data and sub-video data encoded as described above are combined and converted into a data structure of a desired video object.

That is, main video data (video data)
Cell is set as the minimum unit of the program chain, then the configuration of the cells that make up the program chain, the attributes of the main video, sub-video and audio, etc. are set (some of these attribute information are set when each data is encoded. The obtained information is used), the management information including various information is the information related to the cell, and the management information recording area (control information 10 in FIG. 1D).
11 or RTR. IFO).

The encoded main video data, audio data and sub video data are subdivided into packs of a fixed size (2048 bytes). These packs include
A dummy pack is inserted as appropriate. It should be noted that PTS (presentation time stamp) and DTS (decode time stamp) are appropriately included in packs other than the dummy pack.
Etc., the time stamp is described. For the PTS of the sub-picture, a time arbitrarily delayed from the PTS of the main picture data or audio data in the same reproduction time zone can be described.

Each data cell is arranged in VOBU units so that the data can be reproduced in order of the time code of each data, and a VOB composed of a plurality of cells is formed.

When the video information is digitally copied from the digital output of the DVD_RTR video recorder shown in FIG. 19, the contents of the cell, program chain, management table, time stamp, etc. are already decided from the beginning, and these are newly created. do not have to.

The structure for executing reading / writing (recording and / or reproducing) of information from / to the optical disc 1001 includes a disc drive unit (disc changer unit) 1500,
An information recording / reproducing unit 101, a temporary storage unit 1534, a data processor 1536, and a system time counter (or system time clock; STC) 1538 are provided.

The temporary storage unit 1534 is used by the information recording / reproducing unit 1.
Buffering a fixed amount of the data (data output from the encoder unit 1550) written to the optical disc 1001 via the 01, or data reproduced from the optical disc 1001 via the information recording / reproducing unit 101 (decoder unit). It is used to buffer a fixed amount of the data (input to 1560).

For example, when temporary storage unit 1534 is composed of a semiconductor memory (DRAM) of 4 Mbytes, it is possible to buffer recording or reproduction data for about 8 seconds at an average recording rate of 4 Mbps. Further, when the temporary storage unit 1534 is composed of an EEPROM (flash memory) of 16 Mbytes, it is possible to buffer record or reproduction data for about 30 seconds at an average recording rate of 4 Mbps. Furthermore, when the temporary storage unit 1534 is composed of a 100-Mbyte ultra-compact HDD (hard disk), it is possible to buffer record or reproduction data for 3 minutes or more at an average recording rate of 4 Mbps.

The temporary storage unit 1534 can also be used to temporarily store the recording information until the optical disc 1001 is replaced with a new disc when the optical disc 1001 is used up during recording.

Further, the temporary storage unit 1534 temporarily stores the data excessively read from the normal drive within a fixed time when a high-speed recording / reproducing unit having a double speed or more is adopted as the information recording / reproducing unit 101. It can also be used for storage.

The read data at the time of reproduction is temporarily stored in the storage unit 15.
If the optical head (not shown) causes a reading error due to a vibration shock or the like, the reproduced data buffered in the temporary storage unit 1534 is switched and used so that the reproduced video is not interrupted. You can

Although not shown in FIG. 19, DVD_
If the RTR video recorder is provided with an external card slot, the EEPROM can be sold separately as an optional IC card. If the DVD_RTR video recorder is provided with an external drive slot or a SCSI interface, the HDD can be sold separately as an optional expansion drive.

In the embodiment in which the personal computer is converted to the DVD_RTR video recorder by software, a part of the free space of the hard disk drive of the personal computer itself or a part of the main memory can be used as the temporary storage unit 1534 in FIG.

The data processor 1536 shown in FIG. 19 is a system control unit (MPU unit) [ROM / RAM built-in] 153.
According to the control of 0, supply of the video information signal for recording from the encoder unit 1550 to the information recording / reproducing unit 101, taking out the video information signal reproduced from the information recording / reproducing unit 101, and transferring it to another part Processing-Rewriting management information (control information 1011) recorded on the optical disc 1001-Video information and management information (control information 1011 or RTR.IFO) that is data recorded on the optical disc 1001
Alternatively, a partial deletion process of RTR_VMG) is performed.

The system control unit 1530 includes an MPU (or CPU), a ROM that is an IC memory in which a control program and the like are written, and a RAM that is an IC memory that provides a work area required to execute the program.

Among the execution results of the system control unit 1530, the contents to be notified to the user of the information recording / reproducing apparatus for video information recording (recording / reproducing recorder) are the video recorder display unit 1548.
Is displayed in.

The system control unit (MPU unit) 1530
Is a disc changer unit 1500 and an information recording / reproducing unit 10.
1, the timing for controlling the data processor 1536, the encoder unit 1550 and / or the decoder unit 1560 can be executed based on the time data from the STC 1538 (the recording / playback operation is normally performed by the STC1).
It is executed in synchronization with the time clock from 538,
Other processing may be executed at a timing independent of STC1538).

The decoder section 1560 is used for the optical disc 100.
A separator 1562 that separates and extracts each pack from the video information having the pack structure recorded in No. 1 and a memory 156 that is used when performing signal processing such as pack separation.
3, a video decoder (V that decodes the main video data (contents of the video pack) separated by the separator 1562
Decoder) 1564, sub-picture decoder (SP decoder) 1565 that decodes the sub-picture data (contents of the sub-picture pack) separated by the separator 1562, separator 1
The video data from the audio decoder (A decoder) 1568 and V decoder 1564 that decodes the audio data (contents of the audio pack) separated by 562 is appropriately combined with the sub-picture data from the SP decoder 1565, and the main picture is displayed with a menu, A video processor 1566 that outputs highlight buttons, subtitles, and other sub-images in a superimposed manner.
A video / digital / analog converter (V / DAC) 1567 and an A decoder 1568 for converting the digital video output from the video processor 1566 into an analog video signal.
An audio / digital / analog converter (A / DAC) 1567 for converting a digital audio output from the device into an analog audio signal is provided.

An analog video signal (video information signal in an analog state) from the V / DAC 1567 and an A / DAC
The analog audio signal from 67 is sent to the AV output unit 15
Via 46, it is supplied to an external component (2 to 6-channel multi-channel stereo device + monitor TV or projector) not shown.

The OSD (On Screen Display) data output from the system control unit (MPU unit) 1530 is input to the separator 1562 of the decoder unit 1560 and V
It passes through the decoder 1564 and is input to the video processor 1566 (which is not particularly decoded). Then, this OSD data is superimposed on the main video, which is AV.
It is supplied to the external monitor TV connected to the output unit 1546. Then, the warning text is displayed together with the main video.

Next, each operation of the information recording / reproducing apparatus (DVD_RTR video recorder) for recording video information shown in FIG. 19 will be described.

Hereinafter, referring to the flowchart of FIG. 20, a plurality of still images are recorded on the information storage medium (DVD_RTR).
The procedure for recording on a disc will be described.

First, data of still image files from the digital camera 1543 etc. is continuously input (step S
T1).

Since the still picture file from the digital camera 1543 is generally recorded in the JPEG format or the bitmap format, the input still picture information is converted into I-picture data of MPEG2 by the V encoder 1553 (step ST2). ).

Next, in the formatter 1556, 1
A VOBU structure having a data structure as shown in FIG. 3 is created for one piece of still image information, and a plurality of still images are collected (grouped) to form a VOB (step ST3).

In parallel with the above processing, the information recording / reproducing section 10
All control information 1 recorded on one optical disc 1001
011 (RTR.IFO / RTR_VMG) is played,
The information is stored in the RAM section (work memory) in the system control section 1530 (step ST4).

Inside the system control unit 1530, a RAM
Control information 1011 (RTR.IFO / R
(TR_VMG), the information of the allocation map table 1105 is searched for, and the location of the unrecorded area 1460 (FIG. 4) is searched (step ST5).

Thereafter, the system control section 1530 sends control information to the formatter 1556, the data processor 1536 and the information recording / reproducing section 101, and the information recording / reproducing section 1
A VOB having a plurality of pieces of still image information 01 is recorded in the unrecorded area 1460 (step ST6).

At the time of recording, the system control unit 1530 monitors the recording status and determines whether or not the VOB recording on the optical disc 1001 was successful (step ST7).

If a trouble occurs on the way, the processes of steps ST4 to ST6 are repeated.

When the VOB recording onto the optical disc 1001 is successful, based on the address information recorded on the optical disc 1001, the system control unit 1530 displays the information shown in FIG.
VOBU map 1738 (or VOB map 1899 in FIG. 17) is created (step ST9).

Finally, the VOBU map 1738 (or VOB map 1) created in the system control unit 1530.
Control information 1011 (RTR.IF) on the optical disc 1001 by using the information recording / reproducing unit 101.
Additional recording in O / RTR_VMG (step ST
10).

Next, the procedure for reproducing still picture information including audio information will be described with reference to FIG.

Similar to steps ST4 to ST5 of FIG. 20, the information recording / reproducing unit 101 first causes the optical disk 1 to read.
All control information 1011 (RT
R. IFO / RTR_VMG) is reproduced and the information is stored in the RAM section (work memory) in the system control section 1530 (step ST11).

Next, in the system controller 1530,
The control information 1011 (RTR.IF stored in the RAM section)
O / RTR_VMG) playback control information 1021
The information on (CI) is searched for and the information on the reproducing method is interpreted (step ST12).

After that, inside the system control unit 1530, the program of the information to be reproduced is searched for in the program chain control information 1103 (PGCI) stored in the RAM unit, and the cells included in the PGC information are extracted. .

Next, the VOB_ID or PTT_ID designated by the corresponding cell is extracted from the cell reproduction information 1108 stored in the RAM section (step ST13).

Further, inside the system control unit 1530, the video object information 1 stored in the RAM unit 1
The address on the optical disc 1001 on which the VOB to be reproduced is recorded is extracted from the part of title information 1753 (FIG. 8) in 107 (AVFIT) or video title set information 1106 (RTR_VMG) (step ST14).

During reproduction, as shown in FIG. 14, VOB #
The still picture information itself is reproduced from A, and VOB # B
The voice information recorded inside is overlaid and displayed. The reproduction procedure in this case will be described below.

First, an optical head (not shown) in the information recording / reproducing unit 101 is accessed based on a control signal from the system control unit 1530 to reproduce the information of VOB # B recorded on the optical disc 1001. In addition, audio information for a plurality of still images is stored in the memory 1563 (see FIG.
It is temporarily stored in 9) (step ST18).

Next, the optical head (not shown) in the information recording / reproducing section 101 is made to access the information recording position of VOB # A recorded on the optical disc 1001, and VOB # A is recorded.
The still picture information therein is reproduced (step ST16).

Finally, the AV output 1546 simultaneously outputs (displays) the audio information in VOB # B and the still image information in VOB # A (step ST17).

As described above, either the audio information of a plurality of still images or only the still image information is reproduced collectively (for a plurality of images), and the reproduction result is stored in the memory 1562 and then the remaining information is stored. Access frequency of the optical head (not shown) compared to a method of reproducing the information collectively and outputting (displaying) at the same time to reproduce still image information and audio information for each piece of still image information. Can be significantly reduced.

As a result, seamless continuous reproduction is possible (there is no temporary stop of movement or interruption of audio information at the transition of the display of a still image). This is a great feature of the present invention.

Note that, in FIG. 21, the still picture information of VOB # A is reproduced after the sound information of VOB # B is reproduced, but the change is made within the range not departing from the technical idea of the present invention (for example, the reproduction order is changed). Etc.) is possible.

[0294] Further, in Fig. 10, the recording format is such that still image information and audio information are stored as a pair in the VOBU. However, the present invention is not limited to such a format, and various modifications are possible.

For example, in the case of a recording format in which a plurality of V_PCKs are collectively arranged in the first half of one VOB or one PTT and a plurality of A_PCKs are collectively arranged in the second half, the same number is used. The positions between V_PCK and A_PCK with respect to the still image are separated on the information storage medium (optical disk) 1001.

In this case, still picture information (V_PCK information) and audio information (V_PC) having the same still picture number in the same VOB.
Even when the K information) is sequentially reproduced, the optical head access process is required.

Therefore, as described above, a plurality of Vs are collected in the first half of one VOB or one PTT.
In the case of reproducing a plurality of still image information from a picture object 1013 having a recording format in which _PCK is arranged and a plurality of A_PCKs are collectively arranged in the latter half, one of V_PCK information and V_PCK information is first reproduced. Or multiple pages are read in advance and saved in the memory 1563,
After that, the remaining information is collectively reproduced and simultaneously output (displayed).

Next, with reference to FIG. 22, a method for additionally recording additional information by still recording on a still image will be described as another embodiment of the present invention.

[0299] The additional information by the after-recording is in a group (another VOB or another PTT) different from the original still picture information, and is synthesized and output (displayed) by the method shown in Fig. 14 during reproduction.

In FIG. 22, steps ST11 to ST14 follow the same procedure as in FIG.

In FIG. 22, the system control unit 1530
An optical head (not shown) in the information recording / reproducing unit 101 is accessed based on a control signal from the device to reproduce the VOB information recorded on the information storage medium (optical disc) 1001, and the AV output 1546 is used to display the information. Display such as 11 is performed (step ST18).

Next, the user receives additional information input while looking at the display screen, and based on the input information, the formatter 1556 groups a plurality of still images into VO.
Configure B or PTT (step ST19).

Finally, the VOB information created by the formatter 1556 is recorded on the optical disc 1001 (step ST20).

FIG. 23 is a diagram for explaining the data structure of the navigation data (RTR_VMG) in FIG.
This RTR_VMG is the control information 110 in FIG.
1 and 1021, and corresponds to control information (RTR.IFO) 1011 in the file structure of FIG.

This navigation data RTR_VMG
Of the user-defined PGC information table UD-PGCI
T is user-defined PGC information table information (UD-PG
CITI) and search pointers # 1 to #n (UD_PGCI_SRP # 1 to #n) of one or more user-defined PGC information.
n) and the number of user-defined PGC information # 1 to #n (UD_PGCI # 1 to #) corresponding to these search pointers.
n) and.

Further, each user-defined PGC information (UD
_PGCI # 1 to #n) or a PG having contents corresponding to the original PGC information (ORG_PGCI)
C information #i (PGCI #i) is PGC general information (PG
C_GI) and one or more pieces of program information # 1 to #m (P
GI # 1 to #m), one or more cell information search pointers # 1 to #n (CI_SRP # 1 to #n), and a number of cell information # 1 to #n (CI) corresponding to these search pointers.
# 1 to #n).

[0307] Each cell information search pointer (CI_S
One of RP # 1 to #n) includes the start address (CI_SA) of the corresponding cell information, and the individual cell information (C
One of I # 1 to #n) is information on the movie cell (M
_CI) or still picture cell information (S_CI).

Note that RTR_VMGI in FIG. 23 is the same as in FIG.
Corresponding to the video title set information 1106 of (f),
The M_AVFIT and S_AVFIT in FIG. 23 are shown in FIG.
Corresponding to the video object information 1107 of (f), ORG_PGCI and UD_PGCIT of FIG.
This corresponds to the PGC control information 1103 in (f).

Further, PGCI # i in FIG. 23 is shown in FIG. 1 (f).
23 corresponds to the PGC control information 1103 of FIG. 23, and CI # of FIG. 23 corresponds to the cell reproduction information 1108 of FIG.

FIG. 24 shows the still picture cell information (S_
It is a figure explaining the content of CI). This S_CI includes still image cell general information (S_C_GI) and entry point information # 1 to #n (S_C_EP) of one or more still image cells.
I # 1 to #n). Here, S_C in FIG.
I corresponds to the cell reproduction information 1108 in FIG.

FIG. 25 is a diagram for explaining the contents of the still picture cell general information (S_C_GI) in FIG.

This S_C_GI is a cell type (C_TY) describing the format of the corresponding cell, a still picture VOB group information search pointer number (S_VOGI_SRPN) of the VOB group used by this cell, and a cell entry point in this cell. Number of information (C_EPI_N
s), the start address (S_S_VOB_ENTN) of the still picture VOB entry number of this cell, and the end address (E_S_VO) of the still picture VOB entry number of this cell.
B_ENTN).

Here, S_S_VOB_ENT in FIG.
N corresponds to the VOB still image number 1875 in FIG. 15, and E_S_VOB_ENTN in FIG. 25 corresponds to the VOB still image number 1876 in FIG.

FIG. 26 is a view for explaining the contents of each still picture cell entry point information (S_C_EPI) in FIG. There are two types (type 1 and type 2) of this S_C_EPI.

The type 1 S_C_EPI is an entry point type (EP
_TY) and the entry number of the still image VOB (S_VOB
_ENTN) is included.

Type 2 S_C_EPI is EP_TY
In addition to S_VOB_ENTN and S_VOB_ENTN, primary text information (PRM_TXTI) is further included. In this PRM_TXTI, a comment and other information related to the corresponding still image can be recorded.

Note that S_VOB_ENTN in FIG. 26 is
One or more still image VOB entries S_VOB_ENT #
(The VOB for the picture object of FIGS. 12 and 13
It corresponds to the contents of the U map 1738 or the VOB map 1899 for picture object of FIG. 17).

FIG. 27 is a view for explaining the contents of the still image additional audio file information (S_AAFI) of FIG.

This S_AAFI is general information (S_AAFI_GI) of additional audio file information for still images.
And search pointers # 1 to #n (S_AAGI_SRP # 1 to # 1 of additional audio group information for still image).
#N) and additional audio group information # 1 to #n (S_AA) for still images of the number corresponding to these search pointers.
GI # 1 to #n).

The individual still picture additional audio group information (one of S_AAGI # 1 to #n) is the general information (S_AAG_G) of the still picture additional audio group.
I) and one or more additional audio entries # 1 to #n
(AA_ENT # 1 to #n) are included.

FIG. 28 is a diagram for explaining the contents of the general information (S_AAG_GI) of S_AAG of FIG.

This S_AAG_GI is the number of additional audio entries (AA_ENT_Ns) and the number of additional audio stream information for still images (S_AA_STI).
N) and the start address (S_AAG_SA) of the AAG in the still image additional audio file.

Here, AA_ENT_Ns in FIG. 28 is
The number of still images in VOB 1801 in FIG. 13 or P in FIG.
It has a value corresponding to the number of still images in TT 1901.

Further, S_AAG_SA in FIG. 28 is the first still image address (the leading still image information 1 in the VOB in FIG. 13).
802 or the first V_PCK address in VOBU 180
8; or head still image information 1902 in PTT of FIG.
Alternatively, it corresponds to the first V_PCK address 1908 in the VOB.

FIG. 29 is a view for explaining the contents of the additional audio entry (AA_ENT) shown in FIG.

This AA_ENT is an additional audio type (AA_T) that describes the format of the additional audio (whether normal audio or provisional audio, etc.).
Y) and the size of the additional audio stream (AA_S
Z) and the playback time of the additional audio stream (AA_
PB_TM).

[0327] Here, AA_SZ in Fig. 29 is the A_PCK address of the current additional audio (VOBU in Fig. 13).
First A_PCK address 1812 or VO in FIG. 18
B head A_PCK address 1912) and A_PCK address of the next additional audio (1812 in FIG. 13)
Alternatively, it has a value corresponding to the difference from 1912 in FIG.

Further, AA_PB_TM in FIG. 29 is the same as in FIG.
3 audio E_PTM1814 to audio S_
Subtracting PTM1813 (or audio S_PTM19 from audio E_PTM1914 in FIG. 18)
(Minus 13)).

FIG. 30 is a view for explaining the contents of the still picture VOB group general information (S_VOG_GI) in FIG.

This S_VOG_GI includes the number of still picture VOBs (S_VOB_Ns) describing the number of video parts in the corresponding VOB group, the number of still picture VOB stream information (S_VOB_STIN), and the first VOB in the corresponding VOB group. Time when recorded (FIRST
_VOB_REC_TM) and the time (LAST_VO) when the last VOB in the corresponding VOB group was recorded.
B_REC_TM) and the corresponding V in the still image AV file
The start address of the OB group (S_VOG_SA) is included.

Here, S_VOB_Ns in FIG.
The number of still images in VOB 1801 in FIG. 13 or P in FIG.
It has a value corresponding to the number of still images in TT 1901.

Further, S_VOG_SA in FIG. 30 is the first still image address (the first still image information 1 in VOB in FIG. 13).
802 or the first V_PCK address in VOBU 180
8; or head still image information 1902 in PTT of FIG.
Alternatively, it corresponds to the first V_PCK address 1908 in the VOB.

FIG. 31 is a view for explaining the first example (type 1) of the contents of the still picture VOB entry (S_VOB_ENT) in FIG.

This S_VOB_ENT type 1 includes a still picture VOB entry type (S_VOB_ENT_TY) describing the format of a still picture VOB entry, and a corresponding still picture video part size (V_PART_SZ).

Here, S_VOB_ENT_TY is S
Information M that describes what type _VOB_ENT is
Information TE describing AP_TY and whether the corresponding VOB is in a normal state or a temporarily erased state (temporary erased state)
And information SPST_Ns describing the number of included sub-picture streams (if zero, it means not included)
Includes and.

Further, V_PART_SZ is the corresponding VOB.
The size of the video part inside is described in sector units.

This V_PART_SZ is the address (1 in FIG. 13) of the head V_PCK in the VOBU of the current still image.
808) and the first A_PCK in the VOBU of the current still image
Corresponding to the address (1812 in FIG. 13).

Alternatively, this V_PART_SZ is the address of the head V_PCK (1908 in FIG. 18) in the VOB of the current still picture and the head A_ in the VOB of the current still picture.
This corresponds to the difference from the PCK address (1912 in FIG. 18).

FIG. 32 is a view for explaining the second example (type 2) of the contents of the still picture VOB entry (S_VOB_ENT) in FIG.

This S_VOB_ENT type 2 is shown in FIG.
Type 1 S_VOB_ENT_TY and V_P
In addition to ART_SZ, the size of the audio part originally attached to the corresponding still picture VOB is expressed in sector units A
_PART_SZ and A_PB_TM representing the reproduction time of the audio part in video field units are included.

When the actual reproduction time of the audio part does not coincide with the boundary of the video field, the part of the end data of the audio part which is out of the video field is truncated.

Here, A_PART_SZ is the current V
First A_PCK address in OBU (1812 in FIG. 13)
And the first V_PCK address in the next VOBU (1 in FIG. 13)
808).

Alternatively, A_PART_SZ is the start A_PCK address in the current VOB (1912 in FIG. 18).
And the top V_PCK address in the next VOB (19 in FIG. 18).
08).

A_PB_TM is the current S_PT.
M1810; FIG. 13 (or current S_PTM191
0; FIG. 18) and the next S_PTM 1810; FIG. 13 (or the next S_PTM 1910; FIG. 18).

Alternatively, A_PB_TM is the difference between S_PTM1813 and E_PTM1814 in FIG. 13 (or S_PTM1913 and E_ in FIG. 18).
(Difference from PTM1914).

FIG. 33 is a view for explaining the third example (type 3) of the content of the still picture VOB entry (S_VOB_ENT) in FIG.

This S_VOB_ENT type 3 is shown in FIG.
Type 1 S_VOB_ENT_TY and V_P
In addition to ART_SZ, an additional audio groove number (S_AAGN) of a still image and an additional audio entry number (AA_ENTN) are included.

Here, S_AAGN indicates the number of the additional audio group including the additional audio stream of the corresponding VOB. This S_AAGN is A in FIG.
This corresponds to the VOB ID information 1877 with _PCK.

[0349] AA_ENTN indicates the number of the additional audio entry corresponding to the additional audio stream of the corresponding VOB. This AA_ENTN is shown in FIG.
This corresponds to the still image number 1878 in the VOB including the A_PCK of the first still image in the cell.

FIG. 34 is a view for explaining the fourth example (type 4) of the contents of the still picture VOB entry (S_VOB_ENT) in FIG.

This S_VOB_ENT type 4 is shown in FIG.
Type 1 S_VOB_ENT_TY and V_P
ART_SZ and A_PART_S of type 2 in FIG.
Z and A_PB_TM and S_A of type 3 in FIG.
The content is a combination of AGNAA_ENTN.

S of types 1 to 4 in FIGS. 31 to 34
In _VOB_ENT, the same field name (S_V
OB_ENT_TY) has the same contents.

FIG. 35 shows the original PGC information (O in FIG. 8 or FIG. 23) when only the still picture VOB is recorded.
RG_PGCI) and still image video file (RT in Fig. 2
R_STO. It is a figure explaining the relationship with (VRO).

In the original PGC in which only the still picture VOB is recorded, the program chain information PGCI is composed of a sequence of cells, and each cell corresponds to the still picture VOB group.

Here, the still picture VOB group is introduced in order to reduce the navigation data size associated with each still picture VOB in consideration of the case where a huge number of still picture VOBs are recorded.

However, the cell cannot simultaneously refer to the movie VOB and the still image VOB. Therefore, if movie VOBs and still picture VOBs are recorded alternately, the still picture VOB group may include only one still picture VOB.

In FIG. 35, still picture VOB group information S_VOGI # 2 is shown in FIGS. 10 (a1) to 10 (d).
Assume a case corresponding to 3) VOB 1631 to 1633.

Under this assumption, for example, FIG.
VOBU1641 and VOBU164 of FIG. 10 (b2)
4 and the VOBU 1646 of FIG. 10 (c2) is S_V.
Included in OGI # 2. Then, the still picture VOB of FIG.
The video parts in group # 2 include packs 1661 to 1663 and 1681 in FIG. 10 (a3), and FIG.
This corresponds to the pack 1665 of 3) or the packs 1668 to 1670 and 1683 of FIG. 10C3.

Further, S_VOGI # 2 in FIG.
Suppose a case corresponding to VOB # A of 4 (a1).

Under this assumption, for example, FIG.
Still image number 2 of VOBU1826 in (a2) is S_VO
It corresponds to the VOB entry number 2 of GI # 2, and corresponds to FIG.
3) Still images 1832, packs 1852, 1848, 1
862 corresponds to the central video part and audio part of the RTR_STO_VRO file of FIG. 35, and the pack 1853 of the still image 1833 of FIG. 14 (a3) is RT.
It corresponds to the video part in the rear of the R_STO_VRO file.

FIG. 36 shows the original PGC information (ORG
_PGCI) and the additional audio part of the still image (R in FIG. 2)
TR_STA. It is a figure explaining the relationship with (VRO).

The VOB entry contains access information for the associated video and audio parts.
These video part and audio part are both RTR_STO. It is recorded in the VRO file. This audio part is recorded immediately after the associated video part.

An additional audio part accompanying the video part is RTR_STA. When recorded in the VRO file, the additional audio entry is described in a data field other than VOGI, and the link from the VOB entry to the additional audio entry is described in this VOB entry.

In FIG. 36, the additional audio file RTR_STA. VRO is the VOB of FIG. 14 (b1)
Consider the case corresponding to #B.

Under this assumption, for example, FIG.
From A_PCK 1865 and 1866 in FIG.
The arrow to A_PCK 1865 and 1866 in 3) is shown in FIG.
6 corresponds to the arrow from the VOB entry in S_VOGI # 2 to the additional audio entry on the right side thereof.

In this case, paying attention to the arrow of A_PCK1866, A_PCK1866 in FIG.
6 RTR_STA. The still image number h + j-2 in FIG. 14 (b2) corresponds to the audio part in the center of the VRO.
Of the additional audio entries in FIG. 36, A_PCK18
A portion corresponding to 66 is configured.

The information portion connected by the arrow (V in FIG. 36).
OB entry part and additional audio entry part)
The cell reproduction information 1108 in FIG. 1 (f) or S in FIG.
It can be linked using _CI.

Note that the RTR_STA. When the central audio part in the VRO file is audio information for after-recording, the A_PCK1866 of FIG. 14 (b3) corresponding to this audio part is recorded.
Is a dummy pack DM_PC as shown in FIG.
It can be configured using K.

FIG. 37 shows a still picture VOB (RTR_ST
O. VRO file) and movie VOB (RTR_
MOV. FIG. 24 is a diagram illustrating a configuration example of original PGC information (ORG_PGCI in FIG. 8 or FIG. 23) including a VRO file).

In FIG. 37, program # 1 of PGCI # 1 corresponds to VTS1762 of FIG. 9 (b2) and S_
VOGI # 1 and S_VOGI # 2 correspond to VOB # D1774 and VOB # E1775 in FIG. 9B3, and M_VOBI # 1 and M_VOBI # 2 are shown in FIG.
(B3) VOB # A1771 and VOB # B177
Let's assume the case corresponding to 2.

Under this assumption, the picture object 1013 of FIG. 9 (b3) is the RTR_ST of FIG.
O. The contents (video part and audio part) of the VRO file are configured, and the video object 1012 of FIG. 9 (b 3) is the RTR_MOV. The contents (VOB # 1, VOB # 2, ...) Of the VRO file are configured.

In FIG. 37, cells # and S in PGCI are
The VOB entry in _VOGI # is, for example, as shown in FIG.
S_S_VOB_ENTN and E_S_VOB_E
It can be linked using NTN.

Also, RTR_STO. VO specified by logical address of video part or audio part in VRO file and VOB entry of S_VOGI #
The B number can be linked by using the relationship shown in FIGS. 4 and 5, for example.

Now, the time map TMAP in the M_VOBI # of FIG. 37 will be described.

Although not shown, the movie AV file information table M_AVFIT in FIG. 8 or 23 is movie AV file information general information (M_AVFI_GI).
And one or more movie VOB information search pointers (M_
VOBI_SRP # 1 to #n) and movie VOB information (M_VOBI # 1) of a number corresponding to this search pointer.
~ # N) are included.

Although not shown, each M_VOBI # has movie VOB general information (M_VOBI_GI), seamless information (SMLI), and audio gap information (A).
GAPI) and time map information (TMAPI).

[0377] This TMAPI is used when performing special reproduction (cell reproduction in the order unique to an individual user using the user-defined PGC) and time search.

Although not shown, TMAPI includes time map general information (TMAP_GI), one or more time entries (TM_ENT # 1 to #r), and one or more VOBUs.
Entry (VOBU_ENT # 1 # q).

Each VOBU entry contains information on the size and playback time of each VOBU. The VOBU size is indicated in units of sectors (2 kbytes or 2048 bytes), and the playback time is a video field (1 field 1/60 seconds in NTSC; 1 field 1/50 in PAL).
Seconds).

Since the size of the VOBU is indicated in the sector unit as described above, the VOBU can be accessed by the sector unit address.

Although not shown, each VOBU entry includes reference picture size information 1STREF_SZ and VOBU.
Playback time information VOBU_PB_TM and VOBU size information VOBU_SZ are included.

Here, VOBU_PB_TM is the corresponding V
The reproduction time of the OBU is expressed in video field units. Also, reference picture size information 1STREF_
SZ is the first reference picture (MPEG) of the corresponding VOBU.
(Corresponding to the I picture of the above) is expressed in sector units.

On the other hand, although not shown, each time entry has address information (VOBU_ADR) of the corresponding VOBU.
And time difference information (TM_DIFF). This time difference information is the reproduction time and V specified by the time entry.
It shows the difference from the reproduction start time of OBU.

Now, assuming that the time interval between two consecutive time entries (time unit TMU) is 10 seconds,
This time entry interval corresponds to 600 fields in NTSC video, for example.

[0385] Normally, in the VOBU entry, "V
"OBU time interval" is represented by the number of fields, but as another method, "VOBU time interval" is represented by
It is also possible to use the "count value by the clock counter from one VOBU to the next VOBU".

As a concrete example, "presentation time stamp PTS at the head position of one VOBU"
"The time interval of VOBU" can be represented by the "difference value between the PTS value at the head position of the VOBU immediately after that".

In other words, it is possible to "indicate the time interval in the unit by the difference value of the clock counter in the specific unit".

The time map general information TMAP_GI is
Although not shown, TM_ENT_Ns indicating the number of time entries in the corresponding time map information and VOBU_ENT_N indicating the number of VOBU entries in the corresponding time map information
s, a time offset TM_OSF for the corresponding time map information, and an address offset ADR_OFS of the corresponding time map information.

When a value (equivalent to 10 seconds) corresponding to 600 fields in NTSC video (or 500 fields in PAL video) is used as the time unit TMU, the time offset TM_OSF indicates a time shift within TMU. Used.

When the VOB size is represented by the number of sectors, the address offset ADR_OFS is set.
Is used to indicate the file pointer from the beginning of the AV file.

Although not shown, the time entry TM_ENT is a VOBU indicating the number of the corresponding VOBU entry.
_ENTN and VOB specified by time entry
TM_DIFF indicating the time difference between the reproduction start time of U and the calculated reproduction time, and V indicating the target VOBU address.
It includes OBU_ADR.

When the time unit TMU is represented by 600 fields in NTSC (or the time unit TMU is represented by 500 fields in PAL), the above "calculated reproduction time" for time entry #j is TMU * (j -1) + TM_OSF.

Also, the above VOBU_ADR is VOBU
When the size is expressed in sector units, the corresponding VOB
The target VOBU address is represented by the total size of the preceding VOBUs.

In the data structure as exemplified above,
In order to start playback from the middle of a VOBU, the access point must be confirmed. This access point is a time entry point.

This time entry point is VOBU
From the position indicated by the movie address information of No. 2 by the time difference indicated by the time difference information TM_DIFF in the time entry TM_ENT. This time entry point becomes a special reproduction start point (or time search point) indicated by the time map information TMAPI.

Cell # and M_VOB in PGCI of FIG.
The time map TMAP in I # can be linked with the same idea as in S_VOGI #.

FIG. 37 exemplifies a case where the video field corresponding to the reproduction start time is in the middle of VOBU # k. In order to display the sequence of the video field group from the video field specified by this reproduction start time, it is necessary to input the VOBU data from the beginning thereof to the decoder. The reason is that the decoder has to decode all reference video fields with a play time earlier than the play start time, even if the decoded field is not what is displayed. The decoder starts displaying the video image when the decoding work reaches the video field corresponding to the reproduction start time.

It is not absolutely necessary, but desirable, to configure the device (system) so that display can be started accurately from the video field corresponding to the reproduction start time.

FIG. 38 shows the user-defined PGC information (FIG. 6).
FIG. 6 is a diagram illustrating a case where a still image refers to a VOB group.

Each user-defined PGC is a movie VO.
Refer to B or still image VOB group 2
Types of cells can be included.

FIG. 38 shows an example of a user-defined PGC that refers to a still picture VOB. In this figure, the cell # 1 in the user-defined PGC is the still image VOB group # 2.
Refer to.

Here, cell # 2 in the original PGC
Specifies the first still image VOB number and the last still image VOB number in the still image VOB group,
The entire still picture VOB group # 2 is referenced. However, the cell # 1 in the user-defined PGC specifies the last still picture VOB number and the second still picture VOB as the first still picture VOB number, thereby
Only the still picture VOB in the group is referenced.

Assume that PGCI in FIG. 38 corresponds to PGC (PGCI) 1446 in FIG. 3 (h), for example. In this case, cells # 1 and # 2 in PGCI of FIG. 38 correspond to cells 1441 and 1442 of FIG. Further, RTR_STO. The first video part in the VRO file is V_PCK1 in FIG.
421 and SP_PCK 1422 chunks. Furthermore, the video part immediately following the above-mentioned first video part, A_PCK 1423 and DM_PC in FIG.
Corresponds to the mass of K1424.

Next, the characteristic parts of the above-mentioned respective embodiments will be described collectively.

A] One VOB or one PTT can include a plurality of still picture information.

B] At the time of recording a plurality of still images, at least two pieces of still image information can be continuously recorded in the empty area in one VOB.

C] Cell information (S_CI) can specify a plurality of continuous still image information.

The effects of a) to c) above are common to each of the embodiments.

That is, a high performance digital camera can record thousands or tens of thousands of still images. When data is transferred to an optical disk, it is easier to process the data by grouping it into a plurality of sheets and recording the data on the optical disk.
Transfer time is short.

Also, a high performance digital camera can record thousands or tens of thousands of still images. If a VOB is constructed for each still image and VOB information is created, the management information becomes enormous. The management information can be greatly reduced by the method of the present invention.

Further, in the digital camera, since the still image information for each image is in a separate file, the management search is complicated. According to the present invention, management and retrieval are facilitated because grouping is performed for every plural sheets.

[0412] Further, in the digital camera, since the still image information for each image is a separate file, the contents of the still image could not be confirmed without opening each file. By grouping a plurality of sheets according to the present invention, FIG.
The user can confirm the contents as easily as looking at a positive film (or negative film) of a photograph as in.

[0413] Furthermore, video information over a plurality of video frames is recorded in VOB units. By recording a plurality of still image information in VOB units, the video information and the still image information can be handled in the same layer (the directory of the same level in FIG. 2), and for example, one PGC cell of the video information and the still image information can be handled. It is possible to display both video information and still image information in a mixed manner, such as by arranging cells in a mixed manner, increasing the range of expression.

D] VOBU map (S_VOB_ENT
#) Or VOB map exists.

E] DVD_RTR recorder is VOBU
It has a structure for recording a map or VOB map.

The effects of d) and e) are common to the respective embodiments.

It is possible to directly access a still image to be viewed using a VOBU map or VOB map in which information such as a recording address for each still image is recorded, and access for displaying a plurality of still images. The speed is significantly increased.

Further, when a plurality of still images are continuously displayed, the playback time information (PTM) and / or the system clock reference information (SCR) is used to make seamless (the joint between still images continuous. ) Display is possible.

[0419] Furthermore, the V in which the still image itself is recorded
Since _PCK and the start address of A_PCK in which audio information is recorded are described separately, high-speed access becomes easy when only still image information or audio information is desired to be reproduced. As a result, when the audio information in a specific VOB is used for displaying still images of multiple VOBs in a multiple manner, seamless display is possible (because only audio information can be accessed at high speed).

F] The object specified by the cell information (S_CI) is an individual still image in the VOB.

Therefore, since individual still images themselves can be specified during playback, high-speed access can be performed (using a VOBU map or VOB map), and seamless display is possible when a plurality of still images are sequentially displayed. Become.

Further, since each still image itself can be designated at the time of reproduction, management at the time of reproduction becomes very easy.
As shown in 1, the processing such as displaying a plurality of still images on the screen at one time becomes simple.

G] Different VO in cell information (S_CI)
Multiple still image information in B can be designated.

For this reason, the continuous audio information in one VOB can be used when another VOB is displayed, which gives a wide range of expression methods.

Further, since continuous audio information in one VOB can be used when another VOB is displayed, the data can be shared and the amount of data recorded on the information storage medium (optical disc 1001) can be reduced. Can be promoted. As a result, the substantial recordable amount per one information storage medium (optical disc 1001) is significantly increased.

Further, the existing video information can be stopped by simply creating the corresponding video object information for picture object (S_AVFIT) without processing the video object 1012 itself with respect to the already recorded video information. It can be used in combination as image information.

H] The cell information is reproduced and the VOB information (VO
BI) is used to reproduce a still image.

Therefore, the picture object 1013
Since the picture object cell reproduction information (S_CI) can be set independently from the picture object video object information, which is the management information of the content of, the reproduction is performed regardless of the order in which the still image is recorded on the information storage medium (optical disc 1001). You can specify the order. From this, the degree of freedom of expression is dramatically improved.

I] The present invention provides a device capable of reading still image information and audio information from a memory and reproducing both of them at the same time.

When multiple pieces of still picture information in different VOBs are designated, or when only the audio information of a plurality of still pictures is recorded in a different area collectively, V_PCK and SP_PCK for each still picture , A_PCK are sequentially reproduced, the access frequency becomes very high, and continuous display becomes difficult when a plurality of still images are sequentially displayed (due to the access waiting time of the optical head).

On the other hand, V_PCK, SP_PCK,
At least two pieces of information of one of A_PCK are reproduced at a time, and temporarily stored in the memory 1563,
When the remaining information is reproduced at the same time, the access frequency of the optical head is significantly reduced, and continuous display is facilitated.

J] The present invention provides an apparatus capable of after-recording recording for collectively recording additional information to an already recorded still image.

For example, if still image information taken by a digital camera having no voice input function is recorded as it is on the information storage medium (optical disc 1001), the recording result is audio pack A_PC as shown in FIG. 10 (c3).
The structure does not include K.

[0434] While reproducing the information and displaying it on the screen as shown in Fig. 11, commentary and comments are added to each piece "voice input by microphone""overwriting of marks by handwriting"
Consider the case of adding by a method such as "adding text information by key-in".

In this case, the recording format is as shown in FIG.
If the structure of 3) that does not include A_PCK is changed to the structure that includes A_PCK as shown in FIG. 10B3, the process of re-recording on the information storage medium (optical disc 1001) occurs, and the process becomes troublesome. At the same time, it takes a lot of processing time. On the other hand, FIG. 10 (c3)
If the additional information alone is recorded on the information storage medium (optical disc 1001) as another VOB 1634 as shown in FIG. 10D without modifying the data not including the audio pack A_PCK shown in FIG. The additional processing of information can be performed very easily and in a short time.

FIG. 39 is a diagram for explaining protect information for protecting a program and its storage location.

As shown in FIGS. 1D and 1E, DVD_
Control information recorded on the RTR disc 1001 (RT
R. IFO) 1011 contains navigation data RT
R_VMG is included.

As shown in FIG. 1 (f) or FIG. 8, the navigation data RTR_VMG includes PGC information (original PGC information ORG_PGCI and user-defined P).
Table UD_PGCIT of GC information).

As shown in FIG. 6, each PGC information (UD_
PGCI # i) is one or more program information (PGI #
, PGI # 2, ..., PGI # m).

Further, as shown in FIG. 23, the original P
The GC information or the user-defined PGC information (collectively referred to as PGC information PGCI) includes one or more program information (PGI # 1, PGI # 2, ... PGI # m).

In the hierarchical structure of information as described above, as shown in FIG. 39, each program information (for example, PGI
# 1) is the program type PG_TY, the number of cells C_Ns in the corresponding program PG, and the primary text information PR.
M_TXTI, item text search pointer number IT_TXT_SRPN, and thumbnail pointer information T
It contains HM_PTRI.

Then, in the program type PG_TY of each program information PGI #, protect information (erase prohibition flag) for preventing the program from being accidentally erased
Is described.

When the flag of the protect information is set to 0b, the corresponding program is not protected and is in the erasable (or overwritable) state.

On the other hand, the flag of this protect information is 1b.
When set to, the corresponding program is protected from accidental erasure, etc., and cannot be erased (or cannot be overwritten). However, it is possible to reproduce the program in which the flag of the protect information is set to 1b.

The protect information of FIG. 39 can be treated as attribute information of each program (PGI #).

FIG. 40 shows a temporary erase flag (TE) of a still image.
It is a figure explaining the storage place and it.

As described above, the control information (RTR.IFO) 10 recorded on the DVD_RTR disc 1001.
11 includes navigation data RTR_VMG.

As shown in FIG. 1 (f) or FIG. 8, the navigation data RTR_VMG includes AV file information (movie AV file information table M_AVFIT and still image AV file information table S_AVFIT).
including.

As shown in FIG. 12, the still picture AV file information table S_AVFIT contains one or more still picture VOBs.
Group information (S_VOGI # 1, S_VOGI # 2,
…)including.

In the hierarchical structure of information as described above, as shown in FIG. 40, each still picture VOB group information (for example, S_VOGI # 1) includes still picture VOB group general information S_VOG_GI and one or more still picture VOB entries. (S_VOB_ENT # 1, ... S_VOB_ENT #
n) is included.

Each still picture VOB entry (for example, S_V
OB_ENT # 1) belongs to any of types 1 to 4 in FIGS. 31 to 34, and in any case, the type S_VOB_ENT_TY of the still image VOB entry is included.
including.

In this S_VOB_ENT_TY, a map type MAP_TY indicating which of the types 1 to 4 in FIGS. 31 to 34 belongs, a temporary erasure flag TE, and the number of sub-picture streams SPST_Ns are described. ing.

When the temporary erase flag TE is set to 0b, the VOB group is in a normal state and is in a reproducible state.

On the other hand, when the temporary erase flag TE is set to 1b, the corresponding VOB group is removed from the reproduction target (or masked) and is not reproduced (skip at the time of reproduction even if it is not actually deleted). It will be treated as if it had been erased). However, a VOB group in which the temporary erase flag TE is set to 1b or a program including such a VOB group can be reset by resetting the flag TE to 0b.
It becomes reproducible.

The temporary erase flag TE shown in FIG. 40 indicates the corresponding VOB.
It can be handled as attribute information of each group or each program consisting of such VOB groups.

FIG. 41 shows the protected program PG # 2.
FIG. 7 is a diagram for explaining a case where a part of is reset to an erasable state and a temporary erasing state.

In the example of FIG. 41, the programs PG # 1 to PG # before the protect (erase prohibition) range is changed
3 are arranged as follows: (1) Program PG # 1 = VOB group VOG # A consisting of still images A1, A2, ... (2) Program PG # 2 = still images B1 to B162 VOB group VOG # B (protected and erasure prohibited) + VOB group VO consisting of still images C1 to C9
G # C (protected and erasure prohibited); (3) Program PG # 3 = V consisting of still image D1, ...
OB group VOG # D.

The reproduction order in this case is PG # 1 → PG # 2 → PG # 3 according to the corresponding PGC information (PGCI).
Becomes

In the above example, the programs PG # 1 to PG # after the protect (erase prohibition) range is changed
5 are rearranged as follows: (1) Program PG # 1 = VOB group VOG # A consisting of still images A1, A2, ... (2a) Program PG # 2 after change = still image B1 B
VOB group VOG # B after change, which is composed of 80 (state protected and erasure prohibited); (2b) new program PG # 4 = still images B81 to B
New VOB group VOG # E consisting of 99 (state in which protection is released and erasable); (2c) New program PG # 5 = still image B100-
New VOB group VOG # f consisting of B162
(Temporary erase flag TE is set to 1b and not reproduced) + VOB group VOG including still images C1 to C9
#C (provisional erasure flag TE is set to 1b and not reproduced) (3) Program PG # 3 = V consisting of still image D1, ...
OB group VOG # D.

The playback order in this case is PG # 1 → PG # 2 → PG # 4 according to the changed PGC information (PGCI).
→ PG # 3 is set (reproduction of PG # 5 having the temporary erase flag TE set to 1b is skipped).

In the management information recording area (S_VOGI in FIG. 40) in which the attribute information regarding VOG is described,
Attribute information (MAP_
TY, TE, SPST_Ns) is S_VOB_ENT
It is recorded in. A part of this attribute information (temporary deletion flag TE) enables setting of temporary deletion for each still image.

During reproduction, the temporarily erased still image is not displayed on the reproduction monitor screen (FIG. 11). For example, in FIG.
41, the sports car, the personal computer, and the running businessman are still images C8, C9, and D1 in FIG. 41, respectively. The temporary deletion flag TE of the still images before the still image C8 and after the still image D1 is 0b, and the still image C9 (personal computer in FIG. 11).
It is assumed that the temporary erase flag TE is set (TE = 1b).

In this case, the still picture A1 of PG # 1 in FIG.
When the still images are sequentially reproduced from (from FIG. 11, the screen scrolls to the left), the reproduction of the still image C8 (sports car) is followed by the still image D1 (running businessman) and the still image C9 (actually). An image of a personal computer that has not been erased but is in a temporary erase state) does not appear on the playback screen. In this case, for the user looking at the monitor of FIG. 11, immediately after the sports car (without space)
It looks like a running businessman is placed.

One or more still images recorded on the recording medium (optical disk) 1001 of FIG. 1 are VOB groups (VO
G) are grouped together, and still images are managed in units of this group.

All AV information recorded on the medium 1001 can be sequentially reproduced based on the original PGC information. This original PGC is composed of one or more programs.

The erase prohibition flag (protect information in FIG. 39) can be set in program units.

All still images included in the program in which the erasure prohibition flag is set (protect information = 1b) are in the erasure prohibition state.

[0468] To return a part of a still image in the erase-prohibited state to the erasable state, "VOB group (VOG)
"Resetting" and "resetting the program" are required.
Specific examples of the “VOB group (VOG) reset” and the “program reset” will be described below.

FIG. 42 shows the protected program PG # 2.
5 is a flowchart illustrating an example of a procedure of resetting a part of the data to an erasable state and a temporary erasing state. This processing can be executed by the internal MPU of the system control unit 1530 of FIG. The procedure of FIG. 42 will be described below with reference to FIG.

First, V consisting of still images B1 to B162
The program PG # 2 is composed of the OG # B and the VOG # C including the still images C1 to C9.
It is assumed that G # 2 is protected (erasure prohibited).

The protected state and the temporary erased state of the program PG # 2 can be changed by the procedure illustrated below.

That is, in FIG. 42, first, VOG
The range of the still image included in #B is redefined as B1 to B80 (step ST100).

Next, it is reset that the VOB group included in PG # 2 is VOG # B only (step ST1).
02).

Next, the range of the still images B81 to B99 is newly grouped to be VOG # E (step ST10).
4).

Next, a new program PG # 4 composed only of VOG # E is defined (step ST10).
6). At this time, the temporary erasure flag TE is not set in the new PG # 4, and the VOG # E is erasable (reproducible, of course).

Next, the range of still images B100 to B162 is newly grouped into VOG # F (step ST
108).

Next, VOG # F and VOG # C are put together and a new program PG # 5 is defined (step S
T110).

Finally, the temporary erase flag T for PG # 5
E is set (step ST112), and the process of FIG. 42 ends.

Before the processing of FIG. 42 is performed, the program PG # 2 of FIG. 41 is in a state in which all the still images B1 to B162 are not erased (playable).

On the other hand, in the program PG # 2 of FIG. 41 after the processing of FIG. 42 is performed, the only still images B1 to B80 that are not erased (playable) are the remaining still images B81 to B162. Has been changed to a state in which it can be erased (reproduced) as necessary.

Further, FIG. 4 after the processing of FIG. 42 is performed.
In the program PG # 2 of No. 1, still images B100 to B16
2 and C1 to C9 are set to the temporary erasing state (a state in which they are not reproduced and are not protected, so that they can also be main erased).

Here, the points in the above-mentioned embodiment will be summarized: <01> 1VOB = a plurality of still picture information or 1PTT
= A plurality of still image information; <02> 1VOB = When recording a plurality of still images, at least two pieces of still image information are continuously recorded in an empty area of the recording medium; <03> Cell information (FIG. 23 or A plurality of continuous still image information can be designated by (S_CI) in FIG. 24><04> Presence of VOBU map or VOB map; <05> Object designated by cell information (S_CI) is V
Individual still images in OB; ・ Since individual still images can be specified during playback (V
It can be accessed at high speed by using an OBU map or VOB map, and a seamless display (a smooth slide show or the like) becomes possible when a plurality of still images are sequentially displayed.

-Since individual still images can be specified during playback, management during playback is very easy, and processing such as when displaying multiple still images on the screen at one time as shown in FIG. 11 is simple. Become.

<06> Different V depending on cell information (S_CI)
Multiple still image information in OB can be specified; ・ Since continuous audio information in one VOB can be used when another VOB is displayed, a wide range of expression methods can be created.

Since continuous audio information in one VOB can be used when another VOB is displayed, data can be shared and the amount of data to be recorded on the information storage medium (optical disc 1001) can be reduced. As a result, the amount of data that can be recorded on one information storage medium is significantly increased in a substantial sense.

The existing video information is combined as still picture information only by newly creating the corresponding video object information for the picture object without processing the video object 1012 itself with respect to the already recorded video information. Can be used.

<07> The cell information (S_CI) is reproduced,
Play back a still image using VOBI; -The cell playback information for the picture object can be set independently of the video object information for the picture object, which is the management information of the content of the picture object 1013. Therefore, the information storage medium (optical disc 100
Since the reproduction order can be specified regardless of the recording order of still images in 1), the degree of freedom of expression is dramatically improved.

<08> Device for reading still image information and audio information from a memory and reproducing both at the same time> When multiple still image information in different VOBs are designated,
When only the audio information of a plurality of still images is collectively recorded in another area, V_PC is used for each still image.
If K, SP_PCK, and A_PCK are sequentially reproduced, the access frequency becomes very high, and continuous display (when affected by the access wait time of an optical head (not shown)) is displayed when a plurality of still images are sequentially displayed. It gets harder.

On the other hand, V_PCK, SP_PCK,
If at least two pieces of information of A_PCK are reproduced at one time, temporarily stored in the memory 1563 of FIG. 19, and simultaneously displayed when the remaining information is reproduced, the access frequency of the optical head is significantly reduced. And continuous display becomes easy.

<09> Post-recording device for collectively recording additional information to already-recorded still images; -For example, still image information taken by a digital camera having no audio input function is used as it is as an information storage medium (optical disc 1).
001), the recording result has a structure that does not include the audio pack (A_PCK).

[0491] While reproducing the information and displaying the image on the screen as shown in Fig. 11, commentary and comment are added to each still image by "voice input by microphone", "overwriting of marks by handwriting", and "text by key-in". Consider the case where information is added by "addition of information". In this case, if an attempt is made to change the recording format from a structure that does not include A_PCK to a structure that includes A_PCK, a process of re-recording on the information storage medium occurs, which makes the process troublesome and takes a lot of processing time. Will end up.

On the other hand, if only the additional information is recorded as a separate VOB on the information storage medium without modifying the data that does not include A_PCK, the subsequent information adding process for the still image is very simple and easy. It can be done in a short time.

As described above, according to the management system according to the embodiment of the present invention, (1) since a data structure similar to DVD video can be adopted, compatibility and continuity with DVD video can be secured to some extent. Yes; (2) Since a similar data structure can be adopted between moving images and still images, consistency or continuity of recording format and management information can be ensured; (3) Digital information handling multiple still image information Can manage protection and temporary erasure.

[0494]

According to the present invention, it is possible to improve the management system for digital information including moving images and still images.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a data structure of an information recording medium according to an embodiment of the present invention;

2 is a diagram illustrating a directory structure of data files stored in a data area of the medium of FIG. 1;

3 is a diagram illustrating a data structure in the AV file of FIG. 2;

FIG. 4 is a video object VO of AV file data.
Sequence when B is recorded on the medium of FIG. 1 (recording location)
FIG.

FIG. 5 is a diagram illustrating a data structure in an allocation map table;

FIG. 6 is a diagram illustrating a data structure in program chain control information (for example, a user-defined PGC information table UD_PGCIT);

FIG. 7 is a diagram illustrating an example of reproducing video information (cell information) based on a program chain PGC;

[Fig. 8] Management information (video title set information VTSI
A diagram illustrating a data structure of management information RTR_VMGI) for real-time recording of video;

FIG. 9 is video object information (M_VOB for moving image)
FIG. 6 is a view for explaining the arrangement order of video objects VOB according to I or S_VOGI for still images;

FIG. 10 is a diagram for explaining a picture object / audio object recording format for a still image;

11 is a diagram showing a screen display example of picture object data (still image) reproduced from the medium of FIG. 1;

FIG. 12 is a still image AV file (S_AVFI of FIG. 8).
FIG. 9B is a diagram for explaining the data structure of information about video objects in T);

FIG. 13 is a data structure of a video object unit VOBU in a picture object (S_VOGI in FIG. 9).
(Data structure related to);

FIG. 14 shows V when still images are continuously arranged.
The figure explaining the relationship between the data structure in OB and the designated content of the cell corresponding to it.

15 is a diagram exemplifying the data structure of cell reproduction information (still image cell information S_CI) of a picture object and the correspondence between the content of this cell reproduction information and the illustrated elements of FIG. 14;

FIG. 16 is a diagram illustrating another data structure of cell reproduction information (cell information CI) of a picture object;

FIG. 17: AV file information for still image (S_AVFI)
FIG. 13 is a diagram for explaining the data structure of part of title (chapter) information regarding a still image;

FIG. 18 is the V of the picture object shown in FIG. 17;
The figure explaining the data structure of an OB map;

FIG. 19 is a block diagram showing a configuration example of a digital video recording / playback apparatus (RTR video recorder) using the medium of FIG. 1 (DVD_RTR disc capable of real-time video recording / playback);

20 is a flow chart diagram illustrating a procedure for recording one or more still images on the medium of FIG. 1;

21 is a flow chart diagram illustrating a procedure of reproducing one or more still images from the medium of FIG. 1;

22 is a flow chart diagram illustrating a procedure for after-recording audio information on the medium of FIG. 1;

FIG. 23 is a diagram illustrating a data structure of control information / navigation data (RTR_VMG) of FIG. 1 or FIG. 8;

FIG. 24 is a diagram for explaining the contents of still image cell information (S_CI) in FIG. 23;

FIG. 25 is a still image cell general information (S_C_G) of FIG.
Figure explaining the contents of I);

FIG. 26 is a diagram for explaining the content of each still picture cell entry point information (S_C_EPI) of FIG. 24;

FIG. 27 is a view for explaining the content of additional audio file information for still image (S_AAFI) in FIG. 12;

FIG. 28 is the general information (S_AAG of S_AAG in FIG. 27).
_GI) for explaining the contents of;

FIG. 29 is a diagram illustrating an additional audio entry (AA_E in FIG. 27).
Figure explaining the contents of NT);

FIG. 30 is a view for explaining the contents of still image VOB group general information (S_VOG_GI) in FIG. 12;

FIG. 31 is a still image VOB entry (S_VO
A diagram illustrating a first example (type 1) of the content of B_ENT);

32 is a still image VOB entry (S_VO) of FIG.
The figure explaining the 2nd example (type 2) of the content of B_ENT);

33 is a still image VOB entry (S_VO) of FIG.
The figure explaining the 3rd example (type 3) of the content of B_ENT);

FIG. 34 is a still image VOB entry (S_VO of FIG.
A figure explaining the 4th example (type 4) of the contents of B_ENT);

[Fig. 35] Original PGC information when only a still image VOB is recorded (ORG_PGC of Fig. 8 or Fig. 23)
I) and still image video files (RTR_STO.
Figure explaining the relationship with VRO);

[Fig. 36] Original PGC information (ORG_PGCI)
And the additional audio part of the still image (RTR_ST in Fig. 2
A. Figure explaining the relationship with VRO);

FIG. 37 is a diagram for explaining the relationship between still picture VOB and movie VOB and original PGC information;

FIG. 38 is a still image VO with user-defined PGC information (FIG. 6).
The figure explaining the case where B group is referred;

FIG. 39 is a diagram explaining protect information for protecting a program and its storage location;

FIG. 40 is a diagram illustrating a temporary erase flag (TE) of a still image and its storage location;

FIG. 41 is a diagram for explaining a case where a part of the protected program PG # 2 is reset to an erasable state and a temporary erase state;

FIG. 42 is a flowchart diagram illustrating an example of a procedure for resetting a part of the protected program PG # 2 to the erasable state and the temporary erase state.

[Explanation of symbols]

1001 ... Rewritable optical disc (DVD_RTR disc); 1009 ... Audio & video data area (A
V data area); 1011 ... Control information (RTR.IF
O); 1012 ... video object (VOB or R
TR_MOV. 1013 ... Picture object (RTR_STO.VRO); 1014 ... Audio object (RTR_STA.VRO); 1101
... AV data control information (RTR_VMG); 1021 ...
Playback control information (RTR_VMG); 1105 ... Allocation map table; 1106 ... Video title set information (VTSI or RTR_VMGI); 1107
... Video object information (M_AVFIT or S_
AVFIT); 1103 ... PGC control information (ORG_P
GCI or UD_PGCIT); 1108 ... Cell playback information (M_CI or S_CI); 1500 ... Disc changer unit (disc drive unit); 1530 ... System control unit; 1550 ... Encoder unit; 1560 ... Decoder unit 101 ... Information recording / playback unit.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04N 5/85 H04N 5/91-5/956 G11B 20/10-20/12 G11B 27/00

Claims (4)

(57) [Claims] 1. A disc that can record predetermined control information and the still picture data, the optical disc, to record and groups of still picture video object formed of one or more still images, the predetermined additional audio information A sub-picture stream including sub-picture information is recordable in the still-picture video object, the control information includes a still-picture AV file information table, and the still-picture AV file information table includes the still-picture AV file information table. Image video object stream information and additional audio stream information, and still picture AV file information and additional audio file information for managing the still picture video object. The still picture AV file information includes group information of the still picture video object. Including with the additional audio File information includes additional audio group information, and the group information of the still image video object includes entry information of the still image video object, still image video object number information indicating the number of the still image video objects, and the still image video object. Of the additional audio entry information indicating the number of the additional audio entry information and the additional audio entry information, and the additional audio entry number information indicating the number of the additional audio entry information. Additional audio stream information number information indicating the number of the stream information of the additional video information, and the entry information of the still image video object indicates the additional audio group number information indicating the group number of the additional audio information. And the additional audio entry number information indicating the entry number of the additional audio information, and the entry information of the still image video object is configured to include the entry type information of the still image video object. An optical disc, wherein the information is further configured to include sub-picture stream information describing the number of the sub-picture streams. Wherein a predetermined control information and an optical disc capable of recording still image data, the optical disk is configured to record group and predetermined additional audio information of the still picture video object formed of one or more still picture A sub-picture stream including sub-picture information is recordable in the still-picture video object, the control information includes a still-picture AV file information table, and the still-picture AV file information table is used for the still-picture video. Object stream information and additional audio stream information, still image AV file information for managing the still image video object, and additional audio file information are included, and the still image AV file information includes group information of the still image video object. The additional audio file Information includes additional audio group information, and the group information of the still image video object includes entry information of the still image video object, still image video object number information indicating the number of the still image video objects, and stream of the still image video object. A still image video object stream information number information indicating information number is included, and the additional audio group information includes additional audio entry information and additional audio entry number information indicating the number of additional audio entry information and the additional audio stream. Additional audio stream information number information indicating the information number, and the entry information of the still image video object indicates additional audio group number information indicating the group number of the additional audio information and the additional information. It is configured to include additional audio entry number information indicating an entry number of audio information, the entry information of the still image video object is configured to include entry type information of the still image video object, and the entry type information is A recording method for recording information on an optical disc configured to further include sub-picture stream information that describes the number of sub-picture streams, wherein the still image data is recorded on the optical disk , A recording method characterized in that the entry information including the sub-picture stream information is recorded in the control information. 3. an optical disc in which predetermined control information and the still picture data is recorded, the optical disk records groups and predetermined additional audio information of the still picture video object formed of one or more still picture The sub-picture stream including sub-picture information can be recorded in the still-picture video object, the control information includes a still-picture AV file information table, and the still-picture AV file information table is stored in the still-picture AV file information table. Stream information of a still image video object and stream information of additional audio, and still image AV file information for managing the still image video object and additional audio file information, wherein the still image AV file information is group information of the still image video object. Including the additional audio file Information includes additional audio group information, and the group information of the still image video object includes entry information of the still image video object, still image video object number information indicating the number of the still image video objects, and stream of the still image video object. A still image video object stream information number information indicating information number is included, and the additional audio group information includes additional audio entry information and additional audio entry number information indicating the number of additional audio entry information and the additional audio stream. Additional audio stream information number information indicating the information number, and the entry information of the still image video object indicates additional audio group number information indicating the group number of the additional audio information and the additional information. It is configured to include additional audio entry number information indicating an entry number of audio information, the entry information of the still image video object is configured to include entry type information of the still image video object, and the entry type information is A reproduction method for reproducing information from an optical disc configured to further include sub-picture stream information describing the number of sub-picture streams, wherein the entry information including the sub-picture stream information is recorded. A reproducing method comprising reproducing the control information and reproducing the still image data. Wherein an optical disc in which predetermined control information and the still picture data is recorded, so the optical disc records the groups and predetermined additional audio information of the still picture video object formed of one or more still picture A sub-picture stream including sub-picture information is recordable in the still-picture video object, the control information includes a still-picture AV file information table, and the still-picture AV file information table includes the still-picture AV file information table. It includes stream information of a video object, stream information of additional audio, still image AV file information for managing the still image video object, and additional audio file information, and the still image AV file information includes group information of the still image video object. With the additional audio file Information includes additional audio group information, and the group information of the still image video object includes entry information of the still image video object, still image video object number information indicating the number of the still image video objects, and stream of the still image video object. A still image video object stream information number information indicating information number is included, and the additional audio group information includes additional audio entry information and additional audio entry number information indicating the number of additional audio entry information and the additional audio stream. Additional audio stream information number information indicating the information number, and the entry information of the still image video object indicates additional audio group number information indicating the group number of the additional audio information and the additional information. It is configured to include additional audio entry number information indicating an entry number of audio information, the entry information of the still image video object is configured to include entry type information of the still image video object, and the entry type information is A reproduction device for reproducing information from an optical disc configured to further include sub-picture stream information describing the number of sub-picture streams, the entry information including the sub-picture stream information, and the still image. Means for reproducing data, extracting the additional audio group number information, the additional audio entry number information and the sub-picture stream information from the reproduced entry information, and extracting the additional audio group number information and the additional audio entry number Information and Based on the video stream information,
A reproducing apparatus configured to reproduce the additional audio information and the sub-picture stream.