JPH09106631A - Method and apparatus for recording data, data-recording medium, method and apparatus for reproducing data, information-recording medium, apparatus for reading information-recording medium, equipment for manufacturing information-recording medium, method for transmitting image data, method and apparatus for recording information-recording medium, reproducing method and reproducing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a recording apparatus copying with a plurality of versions or rating modes, by dividing digital data into respective units of buckets, designating a plurality of entry points, setting a reproduction order, and recording a start and an end addresses and a start address of a next section, etc., to a medium. SOLUTION: A video signal and an audio signal are input to encoders 1, 2, and output to a multiplexer 13 respectively. A control circuit 30 of the multiplexer 13 is, upon receipt of an input from a multiplex system clock generation circuit 31, sequentially takes out data from code buffers 24, 26 via a switching circuit 27 and time divisionally multiplexes the video and audio data. The control device 30 stores all of entry points to a memory device 35, and reads out two points before, one point before, one point after and two points after each point from the memory device 35 after the time division multiplexing, supplies the points to a DSM 10 to record to points on a disc 7 as a reproduction order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording method and apparatus, and a data recording medium suitable for compressing, for example, digital moving image data and digital audio data, and time-division multiplexing and recording and reproducing, for example, on an optical disc. , Data reproduction method and device, etc.

[0002]

2. Description of the Related Art Conventionally, in a video work such as a movie, there may be a so-called different version of the work which has basically the same content but is slightly different in details due to various circumstances. For example, there are cases where there is a first public version in the theater and a so-called director's cut version edited by the director later. This is because in the original editing, some scenes shot were cut or cut due to the industrial reason or the political or cultural background at the time of the industry.
This is a case where a re-shot was used, but it was re-edited in later years, including scenes that were cut again and scenes that were not used due to changes in the circumstances and the intentions of the author. These are identified by the director's cut version, full version, special version, and various other names. Some works have three or more versions.

In addition to the version for theatrical release, editing corresponding to the broadcasting time is performed, for example, for television broadcasting, or recording / reproducing for relatively short-time recording / reproducing for consumer use. Editing is performed to make it compatible with the device.

Further, movies and videos released to an unspecified number of audiences are referred to as "adult designation (rating:
Rating) ". This adult designation prevents the minor from viewing the movie voluntarily by the producer when the movie contains inappropriate expressions in the minor. Similarly, video discs that have been designated as adults are prohibited from being sold or transferred to minors.

Ratings in the United States are not regulated by law, but are voluntary by producers (distributors, sellers). Reference "THE MOVIE BUSINESS B
OOK, pp396-406, "THE VOLUNTARY MOVIE RATING SYSTE
According to M ", G (GeneralAudiences-All ages adm
itted.), PG (Parental Guidance Suggested; somem
aterial may not be suitable for children.), PG
-13 (Parents strongly cautioned.Some material m
ay be inappropriate for children under 13.), R
(Restricted, under 17 requires accompanying paren
t or adult guardian.), NC-17 (No children u
nder 17 admitted.)

Therefore, in accordance with these designations, entry of movies and sales of videotapes are limited.
Up until now, one rating level has been assigned to the entire movie, and this rating level allows visitors (purchasers) to enter the theater or video shop.
Was used to compare with the age of. In response to such an artificial act, there is an idea that the player should forcibly prevent a minor from viewing a video disc that has been designated as an adult. In this case, the idea is to write a flag for identifying the presence or absence of adult designation in advance on a video disc or the like, detect this on the player side, and prohibit playback. Rating this function (Rati
ng) system, hereinafter simply referred to as rating.

In the European digital broadcasting system, "Parental Rating" is described in the definition of service information.
In this broadcasting system, a method of describing age is defined, and it is considered that the receiver can operate the rating from this age. In the rating system described above, when only a certain scene of the program is a problem, the identification code is written at a position immediately before the start of the program. When the reproducing device is in the rating mode, the program is stopped without reproducing by identifying the identification code. In this case, the entire program cannot be viewed.

[0008]

On the other hand, when the identification code is written immediately before the scene in question and the identification code is detected during the reproduction operation of the reproduction apparatus, the reproduction apparatus that does not normally reproduce only the scene is generated. Conceivable. For example, noise is added to the scene or a specific pattern is displayed. As a result, it becomes possible to reproduce the other parts except the scene.

However, in this case, the viewer has to wait for normal reproduction until the scene ends. Therefore, the continuity of the program is lost. Moreover, since the scenes subject to the limitation vary in time, the viewer has to look at the screen of noise or a specific pattern until the normal reproduction, which is still insufficient in terms of usability.

Further, when a movie is provided on a disk or tape recording medium, special reproduction such as high-speed search is possible. In such special reproduction, there is a possibility that a problematic scene may be reproduced, which is still insufficient as a solution.

Regarding the above-mentioned problems, the applicant of the present invention discloses in Japanese Patent Application No. 6-335602, reproduction including a limited portion,
A technique for providing good operability with respect to a plurality of ratings and differences in versions is disclosed by giving an example of reproducing only a non-limited part and reproducing a recording medium in two different reproduction orders.

However, in the above application, only the recording of the information necessary for controlling the reproducing apparatus for reproducing in a plurality of reproducing orders is described, and the identification information of each reproducing order, that is, each reproducing order is described. It does not mention that it records information about the purpose and program content, for example information about the type and age of the rating.

Further, in the above-mentioned application, only the control information of the reproducing apparatus based on the reproducing apparatus control information for performing reproduction in a plurality of reproducing orders is described, and when a plurality of reproducing orders are recorded, It does not describe how to select the playback order.

In view of the above conventional circumstances, an object of the present invention is to provide a recording method and a recording apparatus for recording identification information of each reproduction order, a recording medium on which the identification information of each reproduction order is recorded, and a plurality of recording media. A method of selecting a reproduction order based on the above-mentioned identification information when reproducing a recording medium in which the reproduction order is set and identification information of each reproduction order is recorded, and a plurality of reproduction orders are set. A data recording method and device, a data recording medium, a data reproducing method and a device capable of selecting a reproduction order based on the above identification information when reproducing a recording medium on which order identification information is recorded. To provide. Another object of the present invention is to provide a data recording method and device, a data recording medium, a data reproducing method and device, etc. that support a plurality of versions and rating modes.

[0015]

In the data recording method according to the present invention, a plurality of sections are combined by dividing digital data into packets and selectively designating a plurality of entry points at which access should be started. The playback order is set, and for each playback order, the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section are given to the recording medium in the bitstream. It is characterized by recording.

In the data recording method according to the present invention, a time code is given to the bit stream for each reproduction order and recorded in the recording medium. Alternatively, a common time code, which increases in the reproduction order in any reproduction order, is given to the bitstream and recorded in the recording medium.

Further, in the data recording method according to the present invention,
A track number is given in the bitstream for each reproduction order and recorded in the recording medium. Alternatively, a common track number, which increases in the reproduction order in any reproduction order, is given to the bitstream and recorded on the recording medium.

Further, in the data recording method according to the present invention,
Recording is performed on the recording medium assuming that prediction coding between access units is not performed across the jump point of each section.

Further, in the data recording method according to the present invention,
The last access unit immediately before the jump point of each section and the first access unit of each elementary stream immediately after the jump point are recorded on the recording medium as a completed access unit.

Further, in the data recording method according to the present invention, at least one reproduction order is only one section.

In the data recording method according to the present invention, digital data is divided into packets, a plurality of entry points at which access is to be started are set, and a plurality of playback orders are selected by selectively designating each entry point. In addition to setting, a rating code is added to each entry point, and each entry point is recorded in a recording medium together with identification information for each of a plurality of designated reproduction orders.

Further, in the data recording method according to the present invention,
For example, a numerical value is recorded as the identification information.

Further, in the data recording method according to the present invention,
For example, character string information is recorded as the identification information.

Further, in the data recording method according to the present invention,
The identification information is defined and recorded for each country, for example.

Furthermore, in the data recording method according to the present invention, for example, digital data of a plurality of programs is recorded together with identification information for each program.

The data recording apparatus according to the present invention comprises packet dividing means for dividing digital data into packet units,
Playback order setting means for setting a playback order in which a plurality of sections are combined by selectively designating a plurality of entry points for starting access to the digital data divided by the packet dividing means in packet units, For each playback order set by the playback order setting means, an address giving the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section in the bitstream. It is characterized in that it is provided with a giving means and a recording means for recording the digital data on a recording medium together with the address given by the address giving means.

The data recording apparatus according to the present invention is further characterized by further comprising time code giving means for giving a time code to the bit stream for each reproduction order. Alternatively, it is characterized by further comprising time code giving means for giving a common time code that increases in the reproduction order in any reproduction order in the bit stream.

The data recording apparatus according to the present invention is further characterized by further comprising track number means for giving a track number in the bit stream for each reproduction order.
Alternatively, it is characterized by further comprising track number means for giving a common track number that increases in the reproduction order in any reproduction order in the bit stream.

Further, the data recording apparatus according to the present invention is characterized by comprising signal processing means for completing an access unit of each of the first elementary streams immediately before and immediately after the jump point of each section. To do.

Further, the data recording apparatus according to the present invention is characterized in that it is provided with a signal processing means which serves as an access unit which does not perform prediction or reference between access units with a jump point of each section interposed therebetween.

Further, the reproduction order setting means in the data recording apparatus according to the present invention sets at least one reproduction order to only one section.

It is characterized in that

The data recording apparatus according to the present invention comprises packet dividing means for dividing digital data into packet units,
Entry point setting means for setting a plurality of entry points for starting access to the digital data divided by the packet dividing means by the packet dividing means, and each entry point set by the entry point setting means are selectively selected. A reproduction order setting means for setting a plurality of reproduction orders by designating, a rating code adding means for adding a rating code to each entry point set by the entry point setting means, and a plurality of reproductions specifying each entry point Identification information generating means for generating identification information for each order, and digital data to which a plurality of playback points are set by dividing the packet unit and each entry point is set and a rating code is added by the identification information generating means. Generated identification Characterized in that it comprises a recording means for recording on a recording medium together with the distribution.

In the data recording device according to the present invention, the identification information generating means generates, for example, a numerical value as the identification information.

Further, in the data recording device according to the present invention, the identification information generating means generates, for example, character string information as the identification information.

In the data recording device according to the present invention, the identification information generating means generates the identification information defined for each country, for example.

The data recording apparatus according to the present invention is a data recording apparatus for packetizing at least image data and audio data as digital data, time-division multiplexing and recording them on a recording medium. Sets an entry point corresponding to at least one intra-frame coded image existing in a packet of image data.

Further, the data recording apparatus according to the present invention is
A data recording apparatus for packetizing at least image data and audio data as digital data of a plurality of programs, time-division multiplexing, and recording them on a recording medium, wherein the identification information generating means generates identification information for each program. It is characterized by

In the data recording medium according to the present invention, digital data is divided into packets, and a plurality of entry points at which access is to be started are selectively designated to set a reproduction order in which a plurality of sections are combined. For each playback order, the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section are given and recorded in the bitstream. Characterize.

The data recording medium according to the present invention is characterized in that the time code is given in the bit stream for each reproduction order. Alternatively, it is characterized in that a common time code that increases in the reproduction order is given in any reproduction order in the bitstream.

Further, the data recording medium according to the present invention is characterized in that a track number is given in the bit stream for each reproduction order. Alternatively, it is characterized in that a common track number that increases in the reproduction order is given to any reproduction order in the bitstream.

Further, the data recording medium according to the present invention is
It is characterized in that the access units of the last elementary stream immediately before the jump point and the first elementary stream immediately after the jump point of each section are recorded as completed access units.

Furthermore, the data recording medium according to the present invention is characterized in that access units that do not perform prediction or reference between access units are recorded across the jump points of each section.

In the data recording medium according to the present invention, digital data is divided into packet units, a plurality of reproduction orders are set by selectively designating a plurality of entry points at which access is to be started, and the respective entry points are set. A rating code is added and recorded with identification information for each of a plurality of reproduction orders that specify each entry point.

Further, the data recording medium according to the present invention has a list recording area in which, for example, a numerical value is recorded as the identification information.

Further, the data recording medium according to the present invention has a catalog recording area in which, for example, character string information is recorded as the above described identification information.

Further, the data recording medium according to the present invention has a catalog recording area in which identification information defined for each country is recorded.

Further, the data recording medium according to the present invention is
It is a recording medium in which at least image data and audio data are packetized and time-division multiplexed as digital data and recorded, and has a catalog recording area in which identification information for each program is recorded.

In the data reproducing method according to the present invention, the digital data is divided into packets and a plurality of entry points at which access is to be started are selectively designated to set a reproducing order in which a plurality of sections are combined. For each playback order, the data recording is made by recording the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section in the bitstream. A data reproducing method for reproducing the digital data from a medium, comprising: a start address and an end address of each section given in a bit stream of the reproduced data for each reproduction order; a start address of a next section; and a previous section. Based on the address of the last entry point of each Characterized by reproducing the digital data by specifying the entry point of the order.

In addition, the data reproducing method according to the present invention reproduces the digital data together with the time code in each reproducing order from the data recording medium in which the time code is given in the bit stream in each reproducing order. Characterize. Alternatively, it is characterized in that the digital data is reproduced together with the time code in each reproduction order from a data recording medium to which a common time code that increases in the reproduction order is given in any reproduction order in the bit stream.

Further, in the data reproducing method according to the present invention, digital data is reproduced together with the track number in each reproducing order from the data recording medium in which the track number is given in the bit stream in each reproducing order. Is characterized by. Alternatively, it is characterized in that the digital data is reproduced together with the track number in each reproduction order from the data recording medium to which a common track number which is increased in the reproduction order is given in any reproduction order in the bit stream.

Further, the data reproducing method according to the present invention is
The digital data is reproduced together with the track number in each reproduction order from the data recording medium recorded as the access unit that completes the access unit of each elementary stream immediately before and immediately after the jump point of each section. It is characterized by

Furthermore, in the data reproducing method according to the present invention, digital data is reproduced for each reproduction order from the data recording medium on which the access units that do not perform prediction or reference between the access units are recorded with the jump points of the respective sections interposed therebetween. Characterized by reproducing data.

In the data reproducing method according to the present invention, the digital data is divided into packet units, a plurality of reproducing orders for selectively designating a plurality of entry points at which access is to be started are set, and the respective entry points are set. A data reproducing method for reproducing the digital data from a data recording medium having a rating code added thereto and recorded together with identification information for each of a plurality of reproduction orders specifying each entry point, wherein the digital data of the digital data is reproduced based on the identification information. It is characterized in that the reproduction order is selected and the entry points are specified in accordance with the specified reproduction order to reproduce the digital data.

In the data reproducing method according to the present invention, for example, a numerical value is reproduced as the identification information, and the reproducing order of the digital data is selected by the numerical value.

Further, in the data reproducing method according to the present invention,
For example, character string information is reproduced as the identification information, and the reproduction order of digital data is selected according to the character string information.

Further, in the data reproducing method according to the present invention,
For example, the reproduction order of digital data is selected according to the identification information defined for each country.

Further, in the data reproducing method according to the present invention, the reproducing order of the digital data of a plurality of programs is selected by the identification information of each program, for example.

In the data reproducing apparatus according to the present invention, the digital data is divided into packets and a plurality of entry points at which access should be started are selectively designated to set a reproducing order in which a plurality of sections are combined. For each playback order, the data recording is made by recording the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section in the bitstream. A data reproducing apparatus for reproducing the digital data from a medium, wherein a start address and an end address of each section given in the bit stream of the reproduced data reproduced from the data recording medium, and a start address of the next section, Address of last entry point in previous section And the address detection means for detecting,
The reproduction order control means controls the reproduction order of the digital data based on the address detected by the address detection means, and the reproduction processing means controlled by the reproduction order control means to reproduce the digital data in each reproduction order. It is characterized by

The data reproducing apparatus according to the present invention is a data reproducing apparatus for reproducing the digital data from the data recording medium given the time code in the bit stream for each reproducing order, and the reproducing processing means for reproducing the digital data. It is characterized in that the digital data is reproduced together with the time code in each reproduction order. Alternatively, a data reproducing apparatus for reproducing the digital data from a data recording medium to which a common time code that increases in the reproduction order in any reproduction order is given in the bit stream, and the reproduction processing means for each reproduction order. And reproducing the digital data together with the time code.

The data reproducing apparatus according to the present invention is a data reproducing apparatus for reproducing the digital data from a data recording medium having a track number assigned to a bit stream for each reproduction order. The processing means reproduces the digital data together with the track number in each reproduction order. Alternatively, a data reproducing apparatus for reproducing the digital data from a data recording medium to which a common track number is added, which increases in the reproduction order in any reproduction order in the bit stream, wherein each reproduction order is reproduced by the reproduction processing means. The digital data is reproduced together with the track number.

Further, the data reproducing apparatus according to the present invention is arranged so that the access unit of the first elementary stream immediately before the jump point of each section and the first access unit of the elementary stream immediately after the jump point is recorded as a complete access unit. A data reproducing apparatus for reproducing digital data, wherein the reproduction processing means reproduces the digital data together with the track number in each reproduction order.

In addition, the data reproducing apparatus according to the present invention digitally converts the access unit encoded so that the prediction or reference between the access units is not performed across the jump point of each section. A data reproducing apparatus for reproducing data, wherein the reproduction processing means reproduces digital data in each reproduction order.

In the data reproducing apparatus according to the present invention, the digital data is divided into packet units, a plurality of reproducing orders for selectively designating a plurality of entry points at which access is to be started are set, and the respective entry points are set. A data reproducing device for reproducing the digital data from a data recording medium having a rating code added thereto and recorded together with identification information for each of a plurality of reproduction orders designating each entry point, the identification being reproduced from the data recording medium. Identification information detection means for detecting information, reproduction order selection means for selecting a reproduction order of digital data based on the identification information detected by the identification information detection means, and reproduction order specified by the reproduction order selection means A playback processor that plays back and outputs digital data by specifying an entry point. Characterized in that it comprises and.

In the data reproducing apparatus according to the present invention, the identification information detecting means detects, for example, a numerical value as the identification information.

In the data reproducing apparatus according to the present invention, the identification information detecting means detects, for example, character string information as the identification information.

In the data reproducing apparatus according to the present invention, the identification information detecting means detects the identification information defined for each country, for example.

In the data reproducing apparatus according to the present invention, the identification information detecting means detects the identification information of each program, for example.

The information recording medium according to the present invention represents image information to be displayed on the screen, which image information includes at least one video program video information and control information for displaying various versions of the video program. In an information recording medium on which a signal is recorded, the control information has path information indicating one or more versions of a video information section to be continuously reproduced, and the path information indicates a section to be continuously reproduced. Is characterized by.

The reading device of the information recording medium according to the present invention is the image information to be displayed on the screen, the image information having at least one video program video information and control information for displaying various versions of the video program. In a read-out device of an information recording medium in which a signal indicating
And a control means for selectively reproducing the video program according to the control information, indicating one or more versions of the video information section to be continuously reproduced, and path information indicating the section to be continuously reproduced. A second means for recovering, wherein the control means continuously reproduces the video program section according to the path information.

The information recording medium manufacturing apparatus according to the present invention comprises:
In an apparatus for manufacturing an information recording medium, a signal representing image information to be displayed on a screen, the image information having at least one video program and control information for displaying various versions of the video program is recorded. The control information includes one or more versions of a video information section to be displayed in a continuous state, the control information having an encoding means for encoding image information and a recording means for recording an information signal on an information recording medium. ,
It is characterized in that it has a generating means for generating path information indicating sections to be continuously displayed, and a means for adding the path information to the image information.

The method of transmitting image information according to the present invention is information in which an information signal representing image information having at least video information of one video program and control information for displaying various versions of the video program is recorded. In a method of transmitting image information for transmitting image information to be displayed on a screen through a recording medium, the control information has path information indicating one or more versions of a video information section to be continuously displayed, The path information is characterized in that it indicates sections to be displayed consecutively.

The recording method of the information recording medium according to the present invention is
In a recording method of an information recording medium for recording a plurality of versions of a program having a plurality of program sections on an information recording medium, a step of encoding the plurality of program sections to generate a plurality of encoded program sections; A step of adding address information to each of the encoded program sections; a step of adding version information to each of the plurality of encoded program sections; and a plurality of the information recording media including the address information and the version information. And recording the encoded program section of.

The recording apparatus for the information recording medium according to the present invention is
In a recording device of an information recording medium for recording a plurality of versions of a program having a plurality of program sections on an information recording medium, a unit for encoding the plurality of program sections to generate a plurality of encoded program sections; Means for adding address information to each of the encoding program sections, means for adding version information to each of the plurality of encoding program sections, and the plurality of units including the address information and the version information on the information recording medium. And means for recording the encoded program section of.

A reproducing method according to the present invention is a reproducing method for reproducing one version out of a plurality of versions of a program having a plurality of program sections recorded in an information recording medium, wherein a plurality of versions are recorded from the information recording medium. Reproducing a first program section including information and a plurality of address information; version information corresponding to the one version of the plurality of versions in the first program section; and an address corresponding to the version information. Detecting information,
The second information corresponding to the address information from the information recording medium,
And reproducing the program section of.

The reproducing apparatus according to the present invention is an apparatus for reproducing one version out of a plurality of versions of a program having a plurality of program sections recorded on an information recording medium, and a plurality of version information from the information recording medium. And means for reproducing a first program section including a plurality of address information, and the first program section, wherein the one of the plurality of versions is
Version information corresponding to the version, means for detecting address information corresponding to the version information, and means for reproducing a second program section according to the address information from the information recording medium. To do.

The reproducing method according to the present invention is a reproducing method for reproducing one version out of a plurality of versions of a program having a plurality of program sections recorded in an information recording medium, wherein the plurality of versions are recorded from the information recording medium. Of the version information, a step of reproducing address information corresponding to the version information, and a step of reproducing a program section corresponding to the address information from the information recording medium. And

[0078]

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

The data recording medium according to the present invention, for example, as shown in FIG. 1, has a basic descriptor recording area PVD, a disk catalog information recording area DTOC, a plurality of program catalog information recording areas PTOC1, PTOC2, PTOC3 ... P.
TOCN and plural program information recording areas PRG1, P
It consists of RG2, PRG3 ... PRGN.

In the basic descriptor recording area PVD, IS
The contents of a basic descriptor (Primary Volume Descriptor) defined as shown in FIG. 2 in accordance with O9660 are recorded.

Further, the disc catalog information recording area DTOC
As shown in the syntax of FIG. 3, the disc catalog information (Disc TOC) showing the recorded contents of this data recording medium is
Various types are defined and recorded in Disc_toc (). In the data recording medium of this embodiment, the disk inventory recording area DTO
As the disc tracks (disc_tracks ()) in the disc catalog information (Disc_toc ()) recorded in C, FIG.
Number of tracks (number_of_
tracks), program number (program_number), track number (track_number), track start logical sector address (start_lsa), track last sector logical sector address (last_lsa), track last entry sector logical sector address (start_es_lsa)
Are defined and recorded. Further, a rating type number or the like is described as a rating definition (rating_definition) in the disc inventory information (Disc_toc ()).

The program catalog information recording area PTO
C1, PTOC2, PTOC3 ...
Program information recording area PRG1, PRG2, PRG3
... Program inventory information (Program TOC 1, Program TOC 2, Program TOC 3 ...
・ Program TOC N) is P as shown in the syntax of Fig. 5.
It is recorded with various definitions in rogram_toc (). In the data recording medium of this embodiment, the program catalog information Progra
As m_toc (), Path_rating_assinments () and Program_t
racks (), Path_table (), etc. are defined.

As shown in the syntax of FIG. 6, Program_tracks () is the total number of tracks (number_of_path_tracks) or track numbers (track_number) used in each path defining the playback order, and the relative sector at the start of the track. Address (start_rsa), relative sector address of the last sector of the track (last_rsa), relative sector address of the last entry sector of the track (start_es_rs
a) etc. are defined and recorded. Here, the relative sector address (relative secter address, rsa) is a relative sector address with 0 at the beginning of the program.

As shown in the syntax of FIG. 7, the Path_table () has the number of sections (number_of_sections) in this path, the relative sector address (start_rsa) of the first entry sector of this section, and the last sector of this section. Relative sector address (last_r
sa), the relative sector address (last_es_rsa) of the last entry sector in this section, etc. are defined and recorded.

Then, the program information recording area PRG
1, PRG2, PRG3 ... PRGN contains program information (Program 1, Program 2, Program 3 ... Progr
am N) is recorded.

The program information recording areas PRG1, P
RG2, PRG3 ... Each program information recorded in PRGN (Program 1, Program 2, Program 3 ... Pro
gramN) is the one in which the program information that constitutes one program is divided into packet units and sequentially recorded.
In Program_toc () in the syntax of Figure 5 above
path_rating_assignments (), Program_tracks (), entr
By setting y_points () and Path_table () to selectively specify each entry point, the program information constituting one program can be reproduced in a plurality of types of order. That is, for example, as shown in FIG.
When recording the program information that makes up one program,
In the first path Path0, the position of one entry point indicating the start point of one section and the position of the end point are designated so that the above program information is reproduced as program information of a program composed of one section, and Second
In Path Path 1 of No. 3, by specifying two entry points indicating the start points of the two sections and the positions of the end points, the above program information is reproduced as the program information of the program composed of two sections. In Path Path2, the three entry points indicating the start points of the three sections and the positions of the end points are designated so that the program information is reproduced as the program information of the program including the three sections. The path
In Path3, by designating five entry points indicating the start points of the five sections and the positions of the end points, the above program information can be reproduced as the program information of a program including five sections.

Here, by setting the access unit of each elementary stream placed immediately before and after the jump point of each section as a complete access unit, even if a jump occurs even in a reproducing system having a simple structure. It becomes possible to continuously reproduce both or at least one of the image and the sound.

Furthermore, if at least one reproduction order is only one section and a path in which a jump does not occur is secured, it is possible to reproduce at least one path even in a reproduction system that does not support jump processing. Become.

The entry point is the one proposed in the patent application (Japanese Patent Application No. 4-277956) filed by the present applicant. Briefly, MPEG
In video, moving images are handled on a group-of-picture (hereinafter referred to as GOP) basis. That is, a plurality of intra pictures (intra-picture coded images, commonly called I pictures) and inter pictures (inter-picture coded images, commonly called P pictures or B pictures) are grouped into one group. In this GOP, since the beginning picture is always an I picture, for example, I
Decode and play only pictures.

However, in MPEG2, it is possible to change the number of pictures included in a GOP, and even if the number of pictures included in a GOP is fixed, the start of a GOP is random at the time of recording on a recording medium at a variable rate. Therefore, it is difficult to specify the position of the I picture. Therefore, in the prior application, an entry point is introduced, an entry packet is provided immediately before the packet in which the first I picture of GOP exists, and a flag is added to this packet as an entry point. Further, for example, the distances or positions with respect to three entry points before and after the neighborhood are written in the entry point.

Therefore, for example, in the case of searching, by accessing the next entry point from the current entry point, only the I picture can be easily decoded and continuously reproduced. For faster search, access to entry points that are far apart. In this prior application, the entry point is implemented by an entry packet. However, the entry point can be defined as an entry point by adding an identification code to a normal data packet.

Further, in the present application, a program stream directory (PDS: Program Stream) defined by the MPEG System (ISO13818-1) as an entry packet.
Directory) and Program Stream Map (PSM: Pr
A sector (= entry point) in which both PSDs and PSMs are recorded by using the ogram stream map) is called an entry sector.

Therefore, here, the ISO / IEC JT
C1 / SC29 / WG11 (November 13, 1994)
Japanese) The proposed international standard MPEG-system (ISO138
A case where it is carried out by using the packet of the bit stream of 18-1) will be described.

ISO / IEC JTC1 / SC29 / W
In the MPEG-system proposed by G11, video data and audio data are packetized to form a video packet stream (Video Packetized Element).
ary Stream) and audio packet stream (Audi
o Packetized Elementary Stream) is formed, and these are time-division multiplexed and are
Transport Stream), which is subjected to predetermined modulation and stored in a recording medium such as an optical disk.

The MPEG program stream is composed of a system layer and a compression layer. The system layer is a pack layer and PES (Packetized Eleme)
ntary Stream) packet layer. FIG. 9 shows the layout of the program stream. Therefore MP
The program stream of the EG contains one system header and at least one PES packet.

The PES packet has the PES packet as shown in the layout of FIG. 10 and the syntax of FIGS. 11 to 14.
It consists of a packet header and the data that follows the header.
Program Stream Elementary Stream (elem
entary stream) is defined by PSM. 15 and 16 show the layout and syntax of the program stream map. The PES data type (MPEG-video, MPEG-audio, etc.) is defined by the stream type of the program stream map as shown in FIG. Since the details of these are described in the above-mentioned MPEG standard, only the parts necessary for implementation will be described here.

The above-mentioned PES packet will be described by excerpting from the above-mentioned MPEG standard.
FIG. 14 shows the syntax of the PES packet.
Packet start code prefix (24 bits) for identifying packets Various definitions are described below. This shows the PES packet of FIG. 10 as a table. Here, 2
One packet shall be used to describe the entry point. That is, in PSD, the current directory offset (prev directory) defined in the PES packet described above is used.
offset) and the current directory offset describe the distance from the current packet to the three entry points before and after. Also, various information is recorded by PSM.

That is, as shown in FIG.
In the EG-system multiplexing method, one multiplexed bitstream is composed of one or more packs.
The pack further includes at least one PES packet or program stream map.

One pack includes pack-start-code and system clock reference (SCR).
nce), a program-mux rate header, and one or more PES packets. Header pack-start
-code is a 32-bit code, which is 0x when expressed in hexadecimal.
It is 000001b4. As shown in FIG. 10 described above, one PES packet is packet-start-code-pref.
ix, stream-id, PES-packet-length and optional-PES
-HEADER (Internally, a header including a presentation time stamp (PTS: Presentation Time Stamp) and a decoding time stamp (DTS)) is defined, and PES packet data. The packet-start-code-prefix is 0x000001 with a 24-bit code. stream-id is 8
The bit code represents the type of PES packet as shown in FIG. packet-length (16 bits) indicates the length of subsequent packets. The packet length is defined as a variable length, but the maximum length is 2048 bytes. This is because by always dividing the pack or packet at the sector boundary, demultiplexing can be started normally regardless of which sector is played by the playback device, and recovery after error and random access can be performed quickly and accurately. This is because

The code data of each packet includes video data (for a video stream) or audio data (for an audio stream (audio stream)).
In case of m)) is recorded. There are 32 different audio streams and 16 different video streams.
Since it has a ream-id, multiple audio signals and video signals up to this number can be multiplexed. The codedata of private stream 1 (private-stream-1) and private stream 2 (private-stream-2)
The content of is not specified as a standard. Therefore, the user can freely define and use it. The padding-stream is used to increase the amount of data. In accordance with the above format, the control device 30 performs a header addition process and a code reading process. In the DSM10, these input data are recorded on a built-in disc.

The program stream map (Progra
m Stream map ()) describes the contents of the program stream as shown in the syntax of FIG. 16, and the descriptor descrptor () in the syntax of FIG. 16 is path_descriptor as shown in FIG. () And program
Various descriptors such as _descriptor () descriptor () are defined.

Here, the path_descriptor () defines each path, and as shown in the syntax in FIG. 20, the path number (path_number) and the track number (t
rack_number), sector number (pX_sectors_to_read, pX_
sectors_from_start), sector offset (pX_offset_
next_section ・ ・ ・ pX_offset_start_track), track time code (pX_track_tc_hours_1 ・ ・ ・ pX_track_
tc_frames_2), pass time code (pX_path_tc_hours
_1 ... pX_path_tc_frames_2) etc. are described.

The path number (path_number) is a 3-bit numerical value that gives the path number referred to by the descriptor.

The track number (track_number) is a 16-bit numerical value equal to the current track number. It is a value that encodes the track number relative to the start position of the program. The track numbers of the segments are shared by one path or a plurality of paths. Track numbers are incremented throughout the pass. The absolute track number on the disc can be known from this relative track number by adding the track number offset given in program_linkage in disc_toc ().

The sector number (pX_sectors_to_read)
Is an unsigned integer that gives the number of remaining sectors required to finish reading the section of the program with pass number X. If this value is 0, the current sector does not form part of the path with the path number X. If this value is N, there are N sectors remaining, including the current sector, to read until the end of this section of this pass.

In addition, the sector number (pX_sectors_from_star
t) is an unsigned integer that gives the number of sectors from the current sector of path number X to the start position of the current section. If this value is 0, the current sector is the first sector of this section. If this value is N, there are N sectors including the current sector from the start position of the current section to the current sector.

The offset (pX_offset_next_sectio
n) is the sector offset from the current entry sector of the path of pass number X to the entry sector at the start position of the next section. This offset is either positive or negative and is encoded in two's complement. If this value is 0, there is no section to be reproduced next to the section to which the current sector belongs, that is, the end of the program.

Also, the offset (pX_offset_previous_s
section) is the sector offset from the current entry sector of the path of pass number X to the last entry sector of the previous section. This offset is either positive or negative and is encoded in two's complement. If this value is 0, there is no section to be reproduced before the section to which the current sector belongs, that is, the beginning of the program.

If the above sector number (pX_sectors_to_re
ad, pX_sectors_from_start) and the above offset (pX
_offset_next_section, pX_offset_previous_section)
Are all zero, the path with pass number X is not used, or the entry sector is 1 with the pass with pass number X.
It does not form a part.

The offset (pX_offset_next_trac
k) is a sector offset from the current sector of the path of pass number X to the entry sector at the start position of the next track. This offset is either positive or negative and is encoded in two's complement. If this value is 0, there is no next track on this path.

The offset (pX_offset_start_trac
k) is the sector offset from the current sector of the path of pass number X to the entry sector at the start position of the current track. This offset is either positive or negative and is encoded in two's complement. If the current entry sector is the first sector of the track, this offset (pX_offset_start_trac
k) is the offset to the starting position of the previous track. If this value is 0, there is no previous track on this path.

FIG. 21 shows the mechanism of the path designated by each of the above offsets.

The track time code (pX_track_tc_
hours_1 ・ ・ ・ pX_track_tc_frames_2) is the pass number X
Is a time code indicating the time relative to the head of the track, where the start position of the track of the path is 0:00:00, in hours, minutes, seconds, and frames.

The pass time code (pX_path_tc_hours)
_1 ... pX_path_tc_frames_2) is a time code indicating the time relative to the beginning of the program (path) in which the start position of the path of the path number X is 0:00:00 in hours, minutes, seconds, and frames.

Here, the path descriptor (path_d
escriptor ()) is, for example, as shown in FIG. 22, a program stream map (PSM: Program) of the entry sector.
Since it is placed for each pass in the Stream map), a time code is given for each pass. In this way, by giving a time code to each pass, the time code can be continuously increased during the reproduction of one pass, and the elapsed time from the time code is displayed. Moreover, it is not unnatural and convenient.

Further, as shown in FIG. 23, for example, the program stream map (PSM: Program) of the entry sector is
When defining each path in the Stream map), the common time code that increases in the playback order in any playback order in the bitstream is the time code descriptor (time
Only one may be given by _code_descriptor ()). In this case, the time code does not necessarily need to be continuously increased, but the same time code is used for the same scene without decreasing or using the same time code twice. By doing so, since a common time code is used in each reproduction order, it is convenient to use the time code as scene index information and identification information for a search, and the amount of information as a time code can be reduced. Can be reduced.

Furthermore, the PSM (Progra
When defining each path in the m Stream map), give a track number for each path. As a result, the track numbers can be continuously increased in one pass, and an unnatural display state in which the track numbers become discontinuous when the track numbers are displayed during reproduction can be eliminated.

Further, when each path is defined in the PSM of the entry sector, a common track number that increases in the reproduction order in any reproduction order in the bitstream is track_.
Timecode descriptor (timecode_descr) with number
You may give only one in iptor). In this case, the track number does not necessarily have to be continuously increased, but the same track number is used for the same scene no matter which path is used for reproduction. By doing so, since a common track number is used in each reproduction order, it is convenient to use the track number as a scene index information and identification information for a search.
The amount of information as the track number can be reduced.

That is, the track number (track_number) and track time code (pX_track) in the path descriptor (path_descriptor ()) shown in FIG. 20 described above.
_tc_hours_1 ・ ・ ・ pX_track_tc_frames_2) and pass time code (pX_path_tc_hours_1 ・ ・ ・ pX_path_tc_fra
mes_2) does not necessarily have to be described in the above path_descriptor (). For example, the time code descriptor (ti
It can be described as me_code_descriptor ()) and defined in common for each path.

In addition, the rating definition (rating_definition) in the disc inventory information (Disc_toc ()) whose syntax is shown in FIG.
As shown in the syntax of, the number of countries that define the rating (num_of_countries), the 2-byte country code (iso_country_cod) defined in IS03166.
e), the number of ratings defined (num_of_definition
), A numerical value indicating the rating type (rating_
type_number), ISO6 indicating the type of rating
A character string (rating_type_string) defined by 46 is described.

Also, the syntax is shown in FIG. 5 described above.
The path_rating_assignments in Program_toc () is
As shown in the syntax of FIG. 25, the number of countries (num_of_countries) that define the rating, the 2-byte country code (iso_county) defined by IS03166.
_code), a character string (path_name) defined by ISO 646 indicating a path name, and the like are described.

Next, the data recording device according to the present invention will be described.

The data recording apparatus according to the present invention is constructed, for example, as shown in FIG. The data recording device shown in FIG. 26 packetizes image data and audio data and time-division multiplexes them into a cutting machine 54.
The present invention is applied to a data recording device for recording on the disk 60 according to the above.

In this data recording device, a video signal input from the outside is input to the video encoder 1. Similarly, an audio signal input from the outside is input to the audio encoder 2. The outputs of the video encoder 1 and the audio encoder 2 are multiplexed by the multiplexer 13.
Is input to The output terminal of the multiplexer 13 is connected to the digital storage medium (DSM) 10,
The result of the multiplexing is stored once.

The output of DSM10 is the catalog information (TOC: Tabl:
e of Content) is input to the additional circuit 50, and TO is added to the beginning.
C data is added. The output of the TOC addition circuit 50 is connected to the input terminal of the sector header addition circuit 51.
The output of the sector header adding circuit 51 is input to the ECC encoder 52. The output of the ECC encoder 52 is input to the cutting machine 54 via the modulation circuit 53,
The optical disc 60 is cut. The TOC addition circuit 50 includes a multiplexer 1 having a configuration as shown in FIG.
TOC data is supplied from the TOC data generation circuit 56 based on the output of the entry point storage device 35 provided in FIG.

As shown in FIG. 27, in the multiplexer 13, the video signal is compressed and encoded by the video encoder 1 and is input to the code buffer 24 through the video entry point detection circuit 23. The audio signal is compressed and encoded by the audio encoder 2 and input to the code buffer 26.

The output terminals of the code buffers 24 and 26 are
Each is connected to the input terminals E1 and E2 of the switching circuit 27. Output terminal F of switching circuit 27
Is connected to the input terminal of the header addition circuit 28.
The output of the header adding circuit 28 is, for example, a magneto-optical disk,
Digital storage media (D
SM) 10.

The control device 30 receives the input of the system clock output from the multiplexed system clock generation circuit 31, and receives the input terminal E of the switching circuit 27 at a predetermined cycle.
1, 1 and E2 are sequentially connected to the output terminal F, the data from the code buffer 24 or 26 is sequentially taken out, time-division multiplexed, and output to the header addition circuit 28. Control device 30
To generate an MPEG bitstream,
The switching circuit 27 and the header addition circuit 28 are controlled.

At this time, the control device 30 controls the switching circuit 27 so that the access unit is completed at the jump point. An example of a completed access unit is shown in FIG. 28 (a), and an example of an uncompleted access unit is shown in FIG. 28 (b). Furthermore, the video encoder 1 that does not perform prediction or reference between access units across a jump point may be used. An example in which prediction or reference is not performed with a jump point sandwiched is shown in FIG. 29A, and an example in which prediction is performed is shown in FIG. 29B.

The entry point generation circuit 32 receives the control input of the control device 30 and supplies its output to the input terminal E3 of the switching circuit 27.

The controller 30 controls the header adding circuit 28 to add a video packet header to the video data read from the code buffer 24. An audio packet header is added to the audio data read from the code buffer 26. Further, the control device 30 receives an input of an entry point generation signal generated at the generation timing of the I picture from the video encoder 1 or the video entry point detection circuit 23, controls the entry point generation circuit 32, and sets a predetermined bit stream. PSD and PSM are inserted in the position of. When the video encoder 1 is configured to be able to output an entry point generation signal, the video encoder 1 outputs an entry point generation signal at an I picture generation timing.

The rating adding circuit 33 determines the path descriptor (Path-descrip) of the entry point at that time.
tor) is described.

The content creator programs the rating circuit 33 for the boundary of the sections in each reproduction order (path).

That is, in this multiplexer 13,
The control device 30 receives the entry point generation signal from the video encoder 1 or the video entry point detection circuit 23, and outputs the PSD immediately before the video entry point.
And PSM are inserted. That is, when the entry point generation signal is received, the entry point generation circuit 32 generates PSD and PSM, the switching circuit 27 is switched to the input terminal E3 side and supplied to the header addition circuit 28, and the code buffer 24, It is multiplexed with video data and audio data from H.26.

The PSD of each entry point includes three points before, two points before, one point before, and 1 point before the entry point.
The positions of the entry points that are two, three, and two
3 prev-directory-offsets and 3 next-directo
It is recorded in ry-offset respectively. By storing the position of the previous (past) entry point (three before, two before, and one before) in the entry point storage device 35, this is known when the current entry point is recorded. be able to. Therefore, this can be supplied to the DSM 10 and recorded on the disc at this timing if necessary. However, the position of the previous (future) entry point cannot know this at this time. Therefore, the control device 30 stores all the positions of the entry points in the entry point storage device 35, and after all the multiplexing is completed, that is, after the bit stream of the video data and the audio data is recorded on the disc. , 3 points before each entry point from the entry point storage device 35,
The position of the entry point of the front, the front, the front, the front, the front, the second, and the front of the front is read out and supplied to the DSM 10 to be recorded (additionally recorded) at each entry point on the disc.

When there is no input to the video encoder 1 and the audio encoder 2, position data is written at the entry points already recorded on the disc. That is, the control device 30 reads the position of the pack including the entry points from the entry point storage device 35,
The position of the pack including three entry points before and after is written.

In the TOC data generation circuit 56, the format of the entry point data supplied from the entry point storage device 35 of the multiplexer 13 is used as TOC data. The TOC here has data of the positions of N entry points. Each entry point is represented by a 4-byte sector address, for example.

Then, the TOC data formed by the TOC data generation circuit 56 is passed to the TOC addition circuit 50,
It is output to the sector header adding circuit 51 prior to the multiplexed data stored in the DSM 10. The multiplexed data is supplied from the DSM 10 to the sector header adding circuit 51 after passing through the TOC adding circuit 50 after the TOC data.

Here, the effective data in one sector is 204
8 bytes, sector header 16 bytes. The sector header includes information on the sector number of the sector. The sector header adding circuit 51 divides the input data into 2048 bytes and adds a 16-byte sector header. At this time, the information of the sector number is written in the sector header. The output of the sector header adding circuit 51 is E
It is input to the CC encoder 52.

The ECC encoder 52 adds a prescribed amount of error correction code (parity) to the input data and outputs it to the modulation circuit 53. The data modulated by the modulation circuit 53 is output to the cutting machine 54 and written on the optical disc 60.

Here, in the ISO11172 (MPEG) multiplexing method, as shown in FIG. 30, one multiplexed bit stream is composed of one or more packs (PACK) and one ISO_11172_end_code. ISO_11172_end_co
de is a 32-bit code, which is 0x000 when expressed in hexadecimal.
It is 001b9. Here, the leading 0x indicates that it is a hexadecimal number (C language).

One pack is Pack_Start_Code, SC
An R (System Clock Referece), a MUX_Rate header, and one or more packets.
Pack_Start_Code in the header is a 32-bit code, 1
When expressed in hexadecimal, it is 0x000001b4.

[0143] One packet is Packet_Start_Code_Pr.
efix, Stream_ID, Packet_length, PTS (Presentation
Time Stamp), a header made up of DTS (Decoding Time Stamp), and packet data (Code Data). Packet_Start_Code_Prefix is 0x000001 with a 24-bit code. Stream_ID is an 8-bit code and represents the type of packet. Packet_length (1
6 bits) indicates the length of the subsequent packets.

Audio data (in the case of audio stream) or video data (in the case of video stream) is recorded in the Code Data of each packet. Also, audio st
Ream has 32 types and video stream has 16 different st
Since it has a ream id, multiple audio signals and video signals up to this number can be multiplexed.

The reserved stream has data such as subtitles. Uses of private_stream_1 and private_stream_2 are not defined. padding_stream is used to increase the amount of data.

In this embodiment, the multiplexed bitstream including the entry points has the format shown in FIG. That is, first, pack
A pack-header (header) made up of -start-code, SCR, etc. is arranged, then a video-packet-header is arranged, and then video data not including an I picture is arranged in a packet structure. An entry point is placed next to the video data, a video-packet-header is placed next to it, and video data including an I picture is placed next to it in a packet structure. That is, immediately before the video data including the I picture (immediately before the video-packet-header),
That is, the program stream directory and the map are arranged at the entry points. In the case of this embodiment, next to the video data, audio-packet-header
However, next, audio data having a packet structure is sequentially arranged.

Next, the data reproducing apparatus according to the present invention will be described.

The data reproducing apparatus according to the present invention is constructed, for example, as shown in FIG. In the data reproducing apparatus shown in FIG. 32, when the optical disk 60 is inserted, the controller 67 gives the drive controller 69 a command for reading the first sector. The drive control device 69 drives the pickup 61 by the tracking servo circuit 70 and starts reproduction from the position of the first sector on the disk 60.

The pickup 61 irradiates the optical disc 60 with a laser beam and reproduces the data recorded on the optical disc 60 from the reflected light. The reproduction signal output from the pickup 61 is input to a demodulation circuit 62 and demodulated. The demodulated data string is input to the ECC circuit 63, where data error detection and correction are performed. The error-corrected data is input to the demultiplexer circuit 64.

TOC information is recorded in the head sector, and this information is separated by the demultiplexer circuit 64 and input to the controller 67. Controller 67
Stores the TOC information in the TOC storage device 68 and displays it to the user via a display device (not shown).

Controller 67 instructed by the user
Gives a command to the drive control device 69 to start the operation. The drive control device 69 drives the pickup 61 by the tracking servo circuit 70,
Start playback from the position desired by the user above. At the same time, the video decoder 65 and the audio decoder 66
Command to prepare to decode input data.

Similar to the TOC reading, the pickup 61 irradiates the optical disc 60 with a laser beam and reproduces the data recorded on the optical disc 60 from the reflected light. The reproduction signal output from the pickup 61 is input to a demodulation circuit 62 and demodulated. The demodulated data string is input to the ECC circuit 63, where data error detection and correction are performed. The error-corrected data is input to the demultiplexer circuit 64.

The demultiplexer circuit 64 has an ECC
From the data supplied via the circuit 63, the header separation circuit 64A controls the pack header, the packet header, and the P header.
The SD and PSM are separated and supplied to the controller 67, and the time-division multiplexed data is supplied to the switching circuit 6
It is supplied to the input terminal G of 4B. The output terminals H1 and H2 of the switching circuit 64B are connected to the input terminals of the video decoder 65 and the audio decoder 66, respectively.

Further, the controller 67 reads out information about the entry point (entry point information) from the data input from the demultiplexer circuit 64 and supplies it to the entry point storage device 71 to store it. Information of the current read position is supplied from the drive control device 69 to the controller 67.
7 can store the position of the entry point and its contents in association with each other. The controller 67 of the demultiplexer circuit 64 follows the stream-id of the packet header supplied from the demultiplexer circuit 64 according to the switching circuit 64.
The input terminal G of B and the output terminals H1 and H2 are sequentially connected,
The time-division multiplexed data is correctly separated, and video data is supplied to the video decoder 65 and audio data is supplied to the audio decoder 66.

Next, the rating operation in this data reproducing apparatus will be described. When a rating operation is commanded, a main controller (not shown) commands the controller 67 to transition to the rating mode. The controller 67 monitors the data input from the demultiplexer circuit 64 and executes a program street map (PSM: Progr).
When am-stream-map) is found, it is always checked whether or not a path descriptor (Path-descriptor) is described in it. If the path descriptor cannot be found, it operates as usual.

Here, in the reproducing apparatus shown in FIG.
The procedure of normal reproduction and special reproduction will be described.

A case of reproducing a recording medium recorded as shown in FIG. 33 will be described.

It is assumed that a plurality of reproduction orders, that is, paths are set in this recording medium, and FIG. 33 shows the structure focusing on one path among them. The bitstream in this recording medium consists of three sections S1 to S3 in the pass, first the first section S1 to be reproduced is recorded, and then the part not used in this pass. Is recorded, and then the third section S3 to be reproduced lastly
Is recorded, then the unused part in this pass is recorded, and the second section S2 to be reproduced second is recorded. Also, in this pass, 4
One track Track1 to Track4 is defined, and its area is defined as shown in FIG.

First, the operation in normal reproduction will be described.

In the reproducing apparatus shown in FIG. 32, when normal reproduction is instructed, the controller 67 first starts reproduction from the head of the first section recorded at the head of the bitstream. After starting the reproduction from the beginning of the first section S1, the controller 67
From the entry points recorded in section S1, the program street map (PSM: Program Strea
m Map), a path descriptor (path_descriptor) corresponding to the path to be reproduced is detected from a plurality of path descriptors (path_descriptor) for each path in the PSM, and the contents are stored in the entry point storage device 71. Remember.

The path_descriptor is the pX_sectors_to_read corresponding to the arrow 29 ₁ and the arrow 2 as described above using the syntax of FIG. 20 and as shown in FIG.
9 ₂ corresponds to pX_sectors_from_first, arrow 29 ₃ corresponds to pX_offset_next_section, arrow 29 ₄ corresponds to pX_offset_previous_section, arrow 29 ₅ corresponds to
pX_offset_next_track, pX_offse corresponding to arrow 29 ₆
Contains t_previous_track information.

After storing the contents of the path descriptor (path_descriptor), the controller 67 stores the currently reproduced sector address obtained from the drive control circuit 69 and the entry point storage device 71 shown in FIG. 34 is compared with the sector address indicated by the arrow 29 ₁ , and the end point of the first section S1, that is, FIG.
When reaching the point of arrow 29 _{1 in} (a), the controller 67 instructs the drive control circuit 69 to access the start position of the next section, that is, the position of arrow 29 _{3 in} (a) of FIG. Playback is started from the beginning of the section S2. After starting the reproduction from the beginning of the second section S2, the controller 67 detects the path descriptor (path_descriptor) corresponding to the path to be reproduced at the same time from the PSM of the entry point recorded in the second section S2. , Its contents are stored in the entry point storage device 71.

The controller 67 uses the second section S2.
After storing the contents of the path descriptor (path_descriptor) in the same manner, the sector address of the currently reproduced sector similarly obtained from the drive control circuit 69 and the arrow of FIG. 34B stored in the entry point storage device 71. 29
_The sector address indicated by ₁ is compared, and the end point of the second section S2, that is, the arrow 29 _{1 in} FIG.
Play to the point. When the reproduction of the second section S2 is completed, that is, when the point reaches the point of the arrow 29 ₁ in FIG. 34B, the controller 67 causes the drive control circuit 69.
Starting position of the third section S3, namely access to arrow 29 ₃ position (b) of FIG. 34 commands the third
Playback is started from the beginning of section S3. After starting the reproduction from the beginning of the third section S3, the controller 67 uses the path descriptor (path_descriptor) corresponding to the path to be reproduced at the same time from the PSM of the entry point recorded in the third section S3.
) Is detected and the contents are detected by the entry point storage device 7
1 is stored.

In the third section S3, pX_offse
Since zero indicating that there is no next section is recorded in t_next_section, in the third section S3, the reproduction operation is ended after the reproduction is performed up to the position of the arrow 29 _{1 in} FIG. 34 (c).

As described above, reproduction in a plurality of sections is performed according to the information described in the path descriptor (path_descriptor).

Next, fast forward reproduction (FF: Fast Forwa
rd) operation will be described.

In the reproducing apparatus shown in FIG. 32, when forward high speed reproduction is instructed during reproduction of the first section S1, the path descriptor (path_descriptor) recorded in the first section S1 which has been reproduced until that time.
Is not stored in the entry point storage device 71, the path descriptor (path_descriptor) corresponding to the path to be reproduced at that time is detected from the PSM of any entry point in the first section S1, and the content is detected. It is stored in the entry point storage device 71. Then, the forward high speed reproduction is started. In the fast forward reproduction, for example, the I picture arranged immediately after the access entry point is reproduced while sequentially accessing the entry points according to the distance information to the preceding and following entry points stored in the PSD. When sequentially accessing the entry points, the sector address of the entry point to be accessed and the arrow 29 _{1 of} FIG. 34A stored in the entry point storage device 71 are stored.
The sector addresses indicated by are compared and the first section S
The forward high speed reproduction is continued within the range until the end point of 1 is exceeded. When the reproduction of the first section S1 exceeds the end point,
The controller 67 tells the drive control circuit 69 the start position of the next section, that is, the arrow 29 in FIG.
The access to the position of ₃ is commanded, and the fast forward reproduction is started from the head of the second section S2. Thereafter, high speed reproduction is similarly performed until the end point of the third section S3.

As described above, the forward high speed reproduction in a plurality of sections is performed by the path descriptor (path_descr
iptor) according to the information described in.

Next, reverse fast playback (FR: Fast Rrvee
The operation in rse) will be described.

In the reproducing apparatus shown in FIG. 32, when reverse high speed reproduction is instructed during reproduction of the third section S3, the path descriptor (path_descriptor) recorded in the third section S3 which has been reproduced until that time.
Is not stored in the entry point storage device 71, the path descriptor (path_descriptor) corresponding to the path to be reproduced at that time is detected from the PSM of an arbitrary entry point in the third section S3, and the content is detected. It is stored in the entry point storage device 71. Then, reverse high speed reproduction is started. In reverse high-speed reproduction, for example, the I-picture arranged immediately after the access entry point is reproduced while sequentially accessing the entry points according to the distance information to the entry points before and after recorded in the PSD. When sequentially accessing the entry points, the sector address of the entry point to be accessed and the arrow 29 ₂ of FIG. 34 (c) stored in the entry point storage device 71 are stored.
The sector address indicated by is compared and the third section S
Reverse high-speed reproduction is continued within the range until the reproduction start point of 3 is exceeded. If fast reverse reproduction of the third section S3 is greater than the starting point, the controller 67, the position of the last entry point of the previous section to the drive control circuit 69, i.e. the arrow 29 _fourth position in FIG. 34 (c) of The access is instructed to start the backward high speed reproduction from the last entry point of the second section S2.

After the backward high speed reproduction is started from the last entry point of the second section S2, the controller 6
Similarly, from the PSM of the entry point recorded in the second section S2, 7 is the path descriptor (path
_descriptor) and stores the contents in the entry point storage device 71.

The controller 67 uses the second section S2.
Similarly, after storing the contents of the path descriptor (path_descriptor) in FIG. 34B, the sector address of the entry point to be accessed and the entry point storage device 71 stored in FIG. The sector address indicated by the arrow 29 ₂ is compared, and the backward high speed reproduction is continued until the reproduction start point of the second section S2 is exceeded. When the backward high speed reproduction of the second section S2 exceeds the start point, the controller 67 causes the drive control circuit 69 to determine the position of the last entry point of the previous section, that is, FIG.
Commanding access to arrow 29 ₄ position (c), first
The backward high speed reproduction is started from the last entry point of the section S1. After the backward high speed reproduction is started from the last entry point of the first section S1, the controller 67 starts from the PSM of the entry point recorded in the first section S1 and then similarly outputs the path corresponding to the path to be reproduced. Descriptor (path_d
escriptor) and stores the contents in the entry point storage device 71.

In the first section S1, pX_offse
Since zero indicating that there is no next section is recorded in t_previous_section, the first section S1
In, after reverse high-speed reproduction to arrow 29 ₂ (a) of FIG. 34, to terminate the fast reverse playback operation.

As described above, backward high speed reproduction in a plurality of sections is performed by the path descriptor (path_descr
iptor) according to the information described in.

Next, the operation in the track search will be described.

In the reproducing apparatus shown in FIG. 32, when a search to the track start point immediately before or immediately after is instructed, the path descriptor (path_descriptor) read immediately before is specified.
) Is not stored in the entry point storage device 71, the controller 67 first detects a program stream map (PSM: Program Stream Map) from the entry point near the current position, and for each path in the PSM. Multiple path descriptors (path_descrip
tor), detect the path descriptor (path_descriptor) corresponding to the path that is going to be played at that time,
The contents are stored in the entry point storage device 71.
Thereafter, the controller 67 commands the respective access position indicated pX_offset_next_track corresponding to arrow 30 ₆ of FIG. 35 in the path descriptor instructs the drive control circuit 69 (path_descriptor). Path descriptor of the entry point at the beginning of the track (path_d
pX_offset_previous_track, pX_offse in escriptor)
In t_next_track, the information that allows the start position of the track immediately before and after that track to be known is recorded, so by repeating the access, it is possible to access the start or end of the previous or subsequent track by any number. it can.

FIG. 35 shows an example of entry points arranged in each section and pX_offset_previous_trac corresponding to the arrow 30 ₆ recorded at the entry points.
It is the figure which showed the position which pX_offset_previous_track and pX_offset_next_track which correspond to k and the arrow 30 ₅ show.
As shown in FIG. 35, pX_offset_previous_track and pX_offset_next_track can indicate the position of the starting point of the track immediately before or immediately after the section boundary, and therefore, even in a bitstream including a plurality of sections, high speed is achieved. Moreover, the head of each track can be accessed accurately.

Furthermore, regarding the time code search,
It can be realized by a path descriptor (path_descriptor).

In the reproducing apparatus shown in FIG. 32, when a search for a specific time code is instructed, the controller 67 moves the entry point across the section, as in the above-described forward and backward high speed reproducing operations. By accessing, it is possible to search for an entry point having a specific time code. Alternatively, first, the time code of the entry point of the beginning or end point of each program, or both of them is sequentially detected, and it is determined which section the target time code is in, depending on the magnitude relationship, and then, Similar to the forward and backward high speed playback operations described in that section, the entry point may be accessed to search for the entry point having a specific time code.

In the above description of the operation of the reproducing apparatus,
For the display of track number and time code, the path descriptor (path_descripto) of each entry point is displayed.
r) or timecode descriptor (timecode_descr
It is also possible to perform the above-mentioned operation while displaying the track number and time code recorded in iptor) to the user.

In the present invention, the specific path is further composed of one section.

In order to realize a cheaper reproducing apparatus, it may be required to use the controller 67 having more limited functions. Therefore, during playback and special playback, the path descriptor (path_descriptor
There is a case where the detection of each pointer in () cannot be performed with sufficient frequency or speed. Even in such a reproducing apparatus, first, the head and end points of the path are read out from the catalog information (TOC: Table of Contents) before reproduction and stored, and then reproduced, so that one section is formed. With respect to the above-mentioned specific path, reproduction and high-speed reproduction in the forward and reverse directions can be performed. In such a cheaper reproducing apparatus, if it is not necessary to display the time code or the track number, it is not necessary to read out the path descriptor (path_descriptor) during the reproduction, and the controller 67 which is lower in function and inexpensive is used. be able to. Therefore, a cheaper reproducing apparatus can be provided.

In the above-described embodiment, the path descriptor (path_descriptor) is recorded in the program stream map (PSM: Program Stream Map) in which the information indicating the reproduction order of the data is recorded. This allows a playback device that does not have a large amount of memory to read and hold only the information that is needed at that point during playback,
The playback order can be controlled to perform the edit playback process.
The information indicating the data reproduction order may be embedded in the data as described above and recorded, or may be collectively recorded outside the data and collectively. In this case, for example, the path descriptors (path_d
A copy of the escriptor) is paired with the sector address of the entry point and recorded together in one place such as the TOC (Table of Contents) area. Or, the start address and the last entry point address of the section are sequentially arranged in the order of the section to be reproduced for each path,
Record in one place such as TOC area. As a result, in a reproducing apparatus having a large-capacity storage means such as a computer system, since it is possible to collectively know the information of the reproducing order before reproducing, it is possible to access an arbitrary section forming a path. Alternatively, by referring only to the TOC without referring to the content of the data, the sections can be rearranged in the reproduction order of a specific path and transferred to another recording medium.

Next, the operation of selecting the reproduction order (path) in this reproducing apparatus will be described.

When the reproduction of the recording medium is started for the first time, the controller 67 causes the TOC storage device 68 to execute the Disc_toc ()
24, the rating definition (rating_definition ()) defined in FIG.

First, the rating definition (ra
According to the country code recorded in (ting_definition ()), a list of countries with rating (rating) is displayed on a character string display device (not shown), and the user can select the country in which the recording medium is played. Select. The selection result is transmitted to the controller 67 by a user interface (not shown). Here, the user interface is, for example, an operation button or a remote commander equipped on the playback device.

Next, when the country to be reproduced is specified, the rating_t defined corresponding to the country code of that country is specified.
The combination of ype_number and rating_type_string is selected, the list is displayed on the string array device, and the user
Ask each rating_type_number to enter whether to permit playback. The input result is transmitted to the controller 68 by the user interface.

Next, when information as to whether or not reproduction is permitted for each rating_type_number is input, the controller 67 causes the TOC storage device 68 to store the path_rating_assi defined in FIG. 25, which is stored in Program_toc ().
Read gnments ().

Next, of the country codes recorded in path_rating_assignments (), rating_type_number and path_name defined corresponding to the country code corresponding to the country reproduced from the already input recording medium.
Is selected first, and then the allowed rating_type_number is determined based on the information of whether or not to allow playback for each rating_type_number that has already been input.
Path_name combined with is selected.

At this point, if the number of reproducible paths is one, the actual reproduction of that path is started.

However, as described above, rating_t
Even if a reproducible path is selected on the basis of information as to whether or not reproduction is permitted for ype_number, a plurality of paths may still be determined to be reproducible and may remain as an option.

In this case, the controller 67 determines that the character string reproducing device has rating_type_st corresponding to rating_type_number.
Display the ring and path_name and let the user select one of the paths to play. The selected result is transmitted to the controller 67 by the user interface.
In this way, the user is caused to select one path to be reproduced based on the character string indicating the rating type and the path name, thereby finally selecting one path.

As described above, rating_definition () and p
By providing a means for allowing the user to select the information of ath_rating_assignments (), this playback device selects the proper path according to the content and the user's intention even if multiple paths are recorded on this recording medium. , That path can be played.

Note that the selection of the path is performed based on the information displayed by the user in the above-mentioned reproducing apparatus.
The playback device may be configured so as to take the burden on the user into consideration.

[0195] Further, instead of the user selecting the information as to whether or not reproduction is permitted for each rating_type_number, the controller 67 can be made recognizable by input means such as a switch. As a result, the user once sets the information as to whether or not to allow the reproduction for each rating_type_number with the switch, and inputs the information as to whether or not to allow the reproduction for each rating_type_number each time each recording medium is reproduced. Can be saved.

The fact that the controller 67 can recognize the information as to whether or not the reproduction is permitted for each of the rating_type_numbers described above is particularly effective when the reproduction of the recording medium on which the program whose viewing age is restricted is recorded is prohibited. That is, by making it difficult to know the existence, position, and operation method of the switch and the like, for example, a child who cannot operate the switch cannot watch a program whose viewing age is restricted.

Further, as a result of selecting a path, when it is determined that a plurality of paths are still playable, instead of the user further selecting a path by pathname, for example, the path having the smallest path number among them is played. When the device reproduces, the user does not need to perform the selection operation described above, and the labor of the operation can be saved.

When the user sets rating_type_string and path_nam
Instead of using e to select the path, path_rating_assi
Unless otherwise specified by the user in gnments (), the path to be reproduced, that is, the default path and the identification information that can be identified by the controller 67 are recorded, and the reproducing apparatus selects the path based on this identification information and reproduces the path. For example, the user can save the trouble of the path selection operation. Further, the default pass number can be fixed in the reproducing device regardless of the recording medium.

Further, instead of letting the user perform a multi-step selection operation, the above-mentioned rating_definition () and path_
It is also possible to display the attributes of all paths, that is, rating_type_string and path_name first, based on the information of rating_assignments (), and then let the user select a path. In this case, although it is not always suitable for the purpose of parental control, the path can be selected with one operation, the information of all paths can be listed, and any path can be selected. It is possible to provide suitable operability to the user who wants to go through all the steps.

[0200]

The data recording method according to the present invention divides digital data into packets and selectively specifies a plurality of entry points at which access should be started, thereby setting a reproduction order in which a plurality of sections are combined. However, for each playback order, the start address and end address of that section, the start address of the next section, and the address of the last entry point of the previous section are given in the bitstream and recorded on the recording medium. It can support multiple versions and rating modes.

In the data recording method according to the present invention, since the time code is given to the bit stream for each reproduction order and recorded in the recording medium, it corresponds to a plurality of versions and rating modes, and is unnatural. You can give a perfect timecode.

Further, in the data recording method according to the present invention,
Since a common time code that increases in the playback order is given to the recording medium in the bitstream and recorded on the recording medium, it is compatible with multiple versions and rating modes, and the time code is unnatural for scene search and the like. It becomes possible to use it without being accompanied by.

Further, in the data recording method according to the present invention,
Since a track number is given to the bitstream for each reproduction order and recorded on the recording medium, it is possible to give a track number that corresponds to a plurality of versions and rating modes and is free from unnaturalness.

Further, in the data recording method according to the present invention,
Since a common track number that increases in the playback order is given to the recording medium in the bitstream and recorded on the recording medium, it is compatible with multiple versions and rating modes, and the track number is unnatural for scene search and the like. It becomes possible to use it without being accompanied by.

Further, in the data recording method according to the present invention,
Since the access unit of each elementary stream immediately before and immediately after the jump point of each section is recorded on the recording medium as a completed access unit, no prediction or reference is made between the access units at the jump point. Since it is recorded on the recording medium like this, it supports multiple versions and rating modes,
Moreover, even in a reproducing system having a small storage capacity and a simple structure, even if a jump occurs, it is possible to continuously reproduce without disturbing at least one of image and / or sound.

Further, in the data recording method according to the present invention,
By setting at least one playback order to only one section, a path in which a jump does not occur is secured, and at least one is used even in a playback system that does not support jump processing.
You will be able to play one pass.

Further, in the data recording method according to the present invention, the digital data is divided into packets, a plurality of entry points at which access is to be started are set, and a plurality of reproduction points are selectively designated. In addition to setting the order, a rating code is added to each entry point, and each entry point is recorded on the recording medium together with the identification information for each of a plurality of specified playback orders. The playback order can be selected based on.

A data recording apparatus according to the present invention comprises packet dividing means for dividing digital data into packet units,
Playback order setting means for setting a playback order in which a plurality of sections are combined by selectively designating a plurality of entry points for starting access to the digital data divided by the packet dividing means in packet units, For each playback order set by the playback order setting means, an address giving the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section in the bitstream. Since the recording medium includes recording means for recording the digital data on the recording medium together with the giving means and the address given by the address giving means, the digital data can be recorded on the recording medium so as to be compatible with a plurality of versions and rating modes. it can.

Further, the data recording apparatus according to the present invention further comprises a time code giving means for giving a time code in the bit stream for each reproduction order. Digital data can be recorded on a recording medium so as to be compatible with the version and the rating mode.

Further, the data recording apparatus according to the present invention further comprises time code giving means for giving a common time code which increases in the reproduction order in any reproduction order in the bit stream. It is possible to record digital data on a recording medium so as to be compatible with a plurality of versions and rating modes together with a time code that can be used without being accompanied by.

Further, the data recording apparatus according to the present invention further comprises track number means for giving a track number in the bit stream for each reproduction order, so that a plurality of versions can be provided together with a track number which does not cause unnaturalness. It is possible to record digital data on a recording medium so as to be compatible with the rating mode and the rating mode.

Further, the data recording apparatus according to the present invention further comprises track number means for giving a common track number which increases in the reproduction order in any reproduction order in the bit stream, so that there is no unnaturalness in scene retrieval or the like. With track numbers that can be used without accompanying,
Digital data can be recorded on a recording medium so as to be compatible with a plurality of versions and rating modes.

Further, since the data recording apparatus according to the present invention comprises the signal processing means as an access unit in which the access units of the first elementary streams immediately before and immediately after the jump point of each section are completed, Since it is recorded on the recording medium so as not to make predictions or references between access units at jump points, it supports multiple versions and rating modes,
Moreover, even in a reproducing system having a small storage capacity and a simple structure, even if a jump occurs, digital data can be recorded on a recording medium so that continuous reproduction is possible without disturbing at least one of image and / or sound. .

Further, in the data recording apparatus according to the present invention,
The reproduction order setting means sets at least one reproduction order to 1
Since only one section is provided, it is possible to record a digital data on a recording medium so that a path in which a jump does not occur is secured and at least one path can be reproduced even in a reproduction system that does not support jump processing.

Further, in the data recording apparatus according to the present invention, the packet dividing means for dividing the digital data into packet units, and the plurality of digital data divided into packet units by the packet dividing means are to be accessed. Entry point setting means for setting entry points, reproduction order setting means for setting a plurality of reproduction orders by selectively designating each entry point set by the entry point setting means, and the entry point setting means Rating code adding means for adding a rating code to each set entry point, identification information generating means for generating identification information for each of a plurality of reproduction orders designating each entry point, and each entry point divided for each packet. Set multiple playbacks By providing a recording means for recording the digital data to which the order is set and the rating code is added to the recording medium together with the identification information generated by the identification information generating means, it is possible to support a plurality of versions and rating modes. It is possible to record the digital data on the recording medium by making it possible to select the reproduction order based on the identification information.

In the data recording medium according to the present invention, the digital data is divided into packets, and a plurality of entry points at which access is to be started are selectively designated to set a reproduction order in which a plurality of sections are combined. For each playback order, the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section are given and recorded in the bitstream. It can support multiple versions and rating modes.

In the data recording medium according to the present invention,
Since the time code is given in the bit stream for each reproduction order, it is possible to give a time code that is compatible with a plurality of versions and rating modes and is free from unnaturalness.

Further, in the data recording medium according to the present invention,
Since a common time code that increases in the playback order is given in any playback order in the bitstream, it is compatible with multiple versions and rating modes, and the time code is unnatural in scene search. It becomes possible to use without.

Further, in the data recording medium according to the present invention,
Since the track number is given in the bit stream for each reproduction order, it is possible to give a track number that corresponds to a plurality of versions and rating modes and is free from unnaturalness.

Further, in the data recording medium according to the present invention,
A common track number, which increases in the playback order in any playback order, is given in the bitstream, so multiple versions and rating modes are supported, and the track number is unnatural when searching for a scene. It becomes possible to use without.

Further, in the data recording medium according to the present invention,
Since the access unit of each elementary stream immediately before and immediately after the jump point of each section is recorded as a complete access unit, do not make predictions or references between access units at the jump point. Since it is recorded on a recording medium, it supports multiple versions and rating modes, and even in a playback system with a simple structure with a small storage capacity, even if a jump occurs, both or at least one of image and sound It is possible to continuously play back without disturbing.

Furthermore, the data recording medium according to the present invention is
Digital data is divided into packet units, multiple playback orders are set by selectively designating multiple entry points to start access, and a rating code is added to each entry point to designate each entry point. Since it is recorded together with the identification information for each of a plurality of reproduction orders, it is possible to select a reproduction order corresponding to a plurality of versions and rating modes based on the identification information.

In the data reproducing method according to the present invention, the digital data is divided into packets and a plurality of entry points at which access should be started are selectively designated to set a reproducing order in which a plurality of sections are combined. For each playback order, the data recording is made by recording the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section in the bitstream. A data reproducing method for reproducing the digital data from a medium, comprising: a start address and an end address of each section given in a bit stream of the reproduced data for each reproduction order; a start address of a next section; and a previous section. Based on the address of the last entry point of each Since reproducing digital data by specifying the entry point of order, it is possible to perform the reproduction process corresponding to a plurality of versions and rating mode.

Further, in the data reproducing method according to the present invention, the digital data is reproduced together with the time code in each reproducing order from the data recording medium in which the time code is given in the bit stream in each reproducing order. , It is possible to play back timecode that is compatible with multiple versions and rating modes and that is free from unnaturalness.

In addition, the data reproducing method according to the present invention includes the above-mentioned time code for each reproducing order from the data recording medium to which the common time code increasing in the reproducing order is given in any reproducing order in the bit stream. Since digital data is reproduced, it is possible to use a plurality of versions and rating modes, and the time code can be used without unnaturalness in scene search and the like.

Further, in the data reproducing method according to the present invention,
Since the digital data is reproduced together with the track number for each reproduction order from the data recording medium to which the track number is given in the bit stream for each reproduction order,
It is possible to play back track numbers that are compatible with a plurality of versions and rating modes and that are free from unnaturalness.

Further, in the data reproducing method according to the present invention,
Since the digital data is reproduced together with the track number in each reproduction order from the data recording medium to which a common track number is added, which increases in the reproduction order in any reproduction order in the bitstream, it is possible to select a plurality of versions or rating modes. In addition, the track number can be used without unnaturalness such as scene search.

Further, the data reproducing method according to the present invention, the data recording medium recorded as an access unit in which the access units of the last elementary stream immediately before the jump point of each section and the first elementary stream immediately after the jump point are recorded, Since the digital data is reproduced in each reproduction order, and the digital data is reproduced in each reproduction order from the recording medium recorded so as not to perform prediction or reference between the access units at the jump points, With a simple playback system that supports versions and rating modes and has a small storage capacity, continuous playback is possible without disturbing at least one of image and / or sound even if a jump occurs.

Furthermore, the data reproducing method according to the present invention is
Digital data is divided into packet units, multiple playback orders are set by selectively designating multiple entry points to start access, and a rating code is added to each entry point to designate each entry point. A data reproducing method for reproducing the digital data from a data recording medium recorded together with identification information for each of a plurality of reproduction orders, wherein the reproduction order of the digital data is selected based on the identification information, and according to the specified reproduction order. Since the digital data is reproduced together with the rating code by designating the entry point, it is possible to perform the reproduction process by selecting the reproduction order corresponding to a plurality of versions and rating modes.

In the data reproducing apparatus according to the present invention, the digital data is divided into packets and a plurality of entry points at which access should be started are selectively designated to set a reproducing order in which a plurality of sections are combined. For each playback order, the data recording is made by recording the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section in the bitstream. A data reproducing apparatus for reproducing the digital data from a medium, wherein a start address and an end address of each section given in the bit stream of the reproduced data reproduced from the data recording medium, and a start address of the next section, Address of last entry point in previous section And the address detection means for detecting,
The reproduction order control means controls the reproduction order of the digital data based on the address detected by the address detection means, and the reproduction processing means controlled by the reproduction order control means to reproduce the digital data in each reproduction order. Therefore, it is possible to perform a reproducing operation corresponding to a plurality of versions and rating modes.

In the data reproducing apparatus according to the present invention,
A data reproducing apparatus for reproducing the digital data from a data recording medium to which a time code is given in a bit stream for each reproduction order, wherein the reproduction processing means reproduces the digital data together with the time code for each reproduction order. Since it is played back, it is possible to play back a time code that is compatible with a plurality of versions and rating modes and is free from unnaturalness.

Further, in the data reproducing apparatus according to the present invention,
What is claimed is: 1. A data reproducing apparatus for reproducing the digital data from a data recording medium to which a common time code increasing in the reproducing order is given in a bit stream, wherein the reproducing processing means reproduces the digital data for each reproducing order. Since the digital data is reproduced together with the time code, it is possible to use a plurality of versions and rating modes, and the time code can be used without any unnaturalness in scene search and the like.

Further, the data reproducing apparatus according to the present invention is a data reproducing apparatus for reproducing the digital data from a data recording medium having a track number given in a bit stream for each reproduction order. Since the processing means reproduces the digital data together with the track number in each reproduction order, it is possible to reproduce a trunk signal which is compatible with a plurality of versions and rating modes and which is not unnatural.

The data reproducing apparatus according to the present invention is a data reproducing apparatus for reproducing the above-mentioned digital data from a data recording medium to which a common track number which increases in the reproducing order is given in any reproducing order in the bit stream. Therefore, the reproduction processing means reproduces the digital data together with the track number in each reproduction order, and moreover, the track number can be used without unnaturalness in scene search and the like.

In the data reproducing apparatus according to the present invention, the data recording medium is recorded as an access unit in which the access units of the last elementary stream immediately before the jump point of each section and the first elementary stream immediately after the jump point are completed. A data reproducing device for reproducing digital data, wherein the digital data is reproduced from a recording medium recorded so as not to perform prediction or reference between access units at a jump point. Since digital data is played back for each playback order, it is a playback system that supports multiple versions and rating modes, and has a simple storage capacity.
Even if a jump occurs, continuous reproduction can be performed without disturbing at least one of the image and / or the sound.

Furthermore, the data reproducing apparatus according to the present invention is
Digital data is divided into packet units, multiple playback orders are set by selectively designating multiple entry points to start access, and a rating code is added to each entry point to designate each entry point. A data reproducing device for reproducing the digital data from a data recording medium recorded together with identification information for each of a plurality of reproduction orders, the identification information detecting means detecting the identification information reproduced from the data recording medium, and the identification. A reproduction order selection means for selecting a reproduction order of digital data based on the identification information detected by the information detection means, and an entry point in accordance with the reproduction order specified by the reproduction order selection means to specify digital data together with a rating code. Play and digitize according to the rating code Because and a reproduction processing means for outputting the data, corresponding to a plurality of versions and the rating mode, it is possible to perform the playback operation process by selecting the playback order.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing a configuration of a data recording medium according to the present invention.

FIG. 2 is a diagram showing definition contents of a basic descriptor recorded in a basic descriptor recording area of the data recording medium.

FIG. 3 is a diagram showing definition contents of disc catalog information recorded in a disc catalog information recording area of the data recording medium.

FIG. 4 is a diagram showing definition contents of disc track information recorded in a disc catalog information recording area of the data recording medium.

FIG. 5 is a diagram showing definition contents of program catalog information recorded in a program catalog information recording area of the data recording medium.

FIG. 6 is a diagram showing definition contents of program track information in the disc track information.

FIG. 7 is a diagram showing definition contents of path table information in the disc track information.

FIG. 8 is a diagram showing a plurality of types of reproduction orders of program information recorded in a program information recording area of the data recording medium.

FIG. 9 is a diagram for explaining a layout of a program stream in MPEG.

FIG. 10 is a diagram for explaining a layout of PES packets in the program stream.

FIG. 11 is a diagram showing a table used to explain the syntax of the PES packet.

FIG. 12 is a diagram showing a table used to explain the syntax of the PES packet.

FIG. 13 is a diagram showing a table used to explain the syntax of the PES packet.

FIG. 14 is a diagram showing a table used to explain the syntax of the PES packet.

FIG. 15 is a diagram showing a layout of a program stream map.

FIG. 16 is a diagram showing a table used to explain the syntax of a program stream map.

FIG. 17 is a diagram showing a table used to describe stream types in a program stream map.

FIG. 18 is a diagram showing a table used for explaining the contents of a stream ID.

FIG. 19 is a diagram showing a table used for explaining descriptors in a program stream map.

FIG. 20 is a diagram showing a table used to explain the syntax of a path descriptor.

FIG. 21 is a diagram schematically showing definition contents of a path by the path descriptor.

FIG. 22 is a diagram schematically showing another example of the definition contents of the path descriptor.

FIG. 23 is a diagram schematically showing another example of the definition contents of the path descriptor.

[Fig. 24] Fig. 24 is a diagram illustrating the syntax of the rating definition in the disc inventory information.

FIG. 25 is a diagram showing the syntax of a passing rating in the program TOC.

FIG. 26 is a block diagram showing a configuration of a data recording device according to the present invention.

FIG. 27 is a block diagram showing a configuration of a multiplexing device that constitutes the data recording device.

FIG. 28 is a diagram for explaining that the access unit is completed and not completed at the jump point.

FIG. 29 is a diagram for explaining that an access unit is not predicting or referencing with a jump point in between, and predicting or referencing.

[Fig. 30] Fig. 30 is a diagram for describing a multiplexed bitstream in the MPEG multiplexing system.

[Fig. 31] Fig. 31 is a diagram for describing a multiplexed bitstream in the present invention.

FIG. 32 is a block diagram showing a configuration of a data reproducing device according to the present invention.

[Fig. 33] Fig. 33 is a diagram for describing a bitstream including a plurality of sections.

[Fig. 34] Fig. 34 is a diagram for describing a position indicated by a path pointer of an entry point.

FIG. 35: Trac of entry point in section
It is a figure for demonstrating the position which a kpointer shows.

[Explanation of symbols]

1 video encoder, 2 audio encoder, 1
0 DSM, 13 multiplexer, 23 video entry point detection circuit, 24 code buffer, 273 switch circuit, 28 header addition circuit, 29 DSM, 3
1 multiplex system clock generation circuit, 32 entry point generation circuit, 33 rating addition circuit, 34
Rating switch, 35,71 entry point storage device, 36 local decoder, 64 demultiplexer circuit

 ─────────────────────────────────────────────────── --Continued from the front page (54) [Title of Invention] Data recording method and device, data recording medium, data reproducing method and device, information recording medium, information recording medium reading device, information recording medium manufacturing device, image Information transmission method, information recording medium recording method and apparatus, reproducing method and reproducing apparatus

Claims (142)

[Claims] 1. A playback sequence in which a plurality of sections are combined is set by dividing digital data into packets and selectively designating a plurality of entry points at which access is to be started, and a bit stream for each playback sequence. A data recording method, characterized in that the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section are given and recorded in the recording medium. 2. The data recording method according to claim 1, wherein a time code is given to a bit stream for each reproduction order and recorded in a recording medium. 3. The data recording method according to claim 1, wherein a common time code that increases in the reproduction order is given to the recording medium in any reproduction order in the bitstream and recorded on the recording medium. 4. The data recording method according to claim 1, wherein a track number is given to the bit stream for each reproduction order and recorded in the recording medium. 5. The data recording method according to claim 1, wherein a common track number, which increases in the reproduction order in any reproduction order, is given to the bit stream and recorded in the recording medium. 6. The data recording method according to claim 1, wherein the access unit of each of the first elementary stream immediately before and immediately after the jump point of each section is recorded as a complete access unit on the recording medium. . 7. The data recording method according to claim 1, wherein access units that do not perform prediction or reference between access units with a jump point of each section interposed therebetween are recorded on a recording medium. 8. The data recording method according to claim 1, wherein at least one reproduction order is only one section. 9. Digital data is divided into packets, a plurality of entry points at which access is to be started are set, and a plurality of playback orders are set by selectively designating each entry point, and a rating code is set. A data recording method characterized in that a reproduction order is determined according to a level, and each entry point is recorded on a recording medium together with identification information for each of a plurality of specified reproduction orders. 10. The data recording method according to claim 9, wherein a numerical value is recorded as the identification information. 11. The data recording method according to claim 9, wherein character string information is recorded as the identification information. 12. The data recording method according to claim 9, wherein the identification information is defined and recorded for each country. 13. The data recording method according to claim 9, wherein digital data of a plurality of programs is recorded together with identification information for each program. 14. A packet dividing unit for dividing digital data into packet units, and selectively specifying a plurality of entry points for starting access to the digital data divided into packet units by the packet dividing unit. The reproduction order setting means for setting a reproduction order in which a plurality of sections are combined with each other, and the start address and end address of the section and the next section in the bit stream for each reproduction order set by the reproduction order setting means. The address of the last entry point of the previous section, the address giving means for giving the address, the recording means for recording the digital data on the recording medium together with the address given by the address giving means. Data recording device. 15. The data recording apparatus according to claim 14, further comprising time code assigning means for assigning a time code to the bit stream for each reproduction order. 16. The data recording apparatus according to claim 14, further comprising time code giving means for giving a common time code which increases in the reproduction order in any reproduction order in the bit stream. 17. The data recording apparatus according to claim 14, further comprising track number means for giving a track number to the bit stream for each reproduction order. 18. The data recording apparatus according to claim 14, further comprising track number means for giving a common track number that increases in the reproduction order in any reproduction order in the bitstream. 19. The data recording apparatus according to claim 14, further comprising signal processing means for making an access unit of each of the first elementary stream immediately before and immediately after the jump point of each section an completed access unit. apparatus. 20. The data recording device according to claim 14, further comprising a signal processing unit that serves as an access unit that does not perform prediction or reference between access units across a jump point of each section. 21. The data recording apparatus according to claim 14, wherein the reproduction order setting means sets at least one reproduction order to only one section. 22. Packet dividing means for dividing digital data into packets, and entry point setting means for setting a plurality of entry points for starting access to the digital data divided in packet units by the packet dividing means. And a reproduction order setting means for setting a plurality of reproduction orders by selectively designating each entry point set by the entry point setting means, and a rating code for each entry point set by the entry point setting means. A rating code adding means for adding a plurality of reproduction orders, an identification information generating means for generating identification information for each of a plurality of reproduction orders designating each entry point, and each entry point is set by dividing the packet unit to set a plurality of reproduction orders. And the rating code is Pressurized digital data data recording apparatus comprising: a recording means for recording on a recording medium together with the identification information generated by the identification information generating means. 23. The data recording device according to claim 22, wherein the identification information generating means generates a numerical value as the identification information. 24. The data recording device according to claim 23, wherein the identification information generation means generates character string information as identification information. 25. The data recording device according to claim 23, wherein the identification information generating means generates identification information defined for each country. 26. A data recording device for packetizing image data and audio data as digital data, time-division multiplexing, and recording the same on a recording medium, wherein the entry point setting means has at least one packet in the image data packet. 24. The data recording device according to claim 23, wherein an entry point corresponding to a number of intra-frame coded images existing is set. 27. A data recording device for packetizing image data and audio data as digital data of a plurality of programs, time-division multiplexing and recording the same on a recording medium, wherein the identification information generating means is for each program. 25. The data recording device according to claim 24, which generates identification information. 28. A reproduction order in which a plurality of sections are combined is set by dividing digital data into packets and selectively specifying a plurality of entry points to start access. A data recording medium characterized in that a start address and an end address of the section, a start address of the next section, and an address of the last entry point of the previous section are given and recorded in the bit stream. 29. The data recording medium according to claim 28, wherein a time code is given in the bit stream for each reproduction order. 30. The data recording medium according to claim 28, wherein a common time code that increases in the reproduction order is given in any reproduction order in the bitstream. 31. The data recording medium according to claim 28, wherein a track number is given in the bitstream for each reproduction order. 32. The data recording medium according to claim 28, wherein a common track number that increases in the reproduction order is given in any reproduction order in the bitstream. 33. The data recording medium according to claim 28, wherein the access unit of each of the first elementary stream immediately before and immediately after the jump point of each section is recorded as a complete access unit. 34. The data recording medium according to claim 28, wherein access units coded so as not to perform prediction or reference between access units across a jump point of each section are recorded. 35. Digital data is divided into packets, a plurality of playback orders are set by selectively designating a plurality of entry points to be accessed, and a rating code is added to each entry point. A data recording medium characterized by being recorded together with a plurality of pieces of identification information for each reproduction order in which entry points are designated. 36. The data recording medium according to claim 35, having a catalog recording area in which a numerical value is recorded as the identification information. 37. An index recording area in which character string information is recorded as the identification information is included.
5. The data recording medium described in 5. 38. The data recording medium according to claim 35, having a catalog recording area in which identification information defined for each country is recorded. 39. A recording medium in which image data and audio data are respectively packetized and time-division multiplexed as digital data and recorded, and having a catalog recording area in which identification information of each program is recorded. Claim 3
5. The data recording medium described in 5. 40. The digital data is divided into packets, and a plurality of entry points to start access are selectively designated to set a playback order in which a plurality of sections are combined. For each playback order, The digital data is reproduced from a data recording medium in which the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section are given and recorded in the bit stream. A method of reproducing data, which is the start address and end address of each section given in the reproduction data bit stream for each reproduction order, the start address of the next section, and the address of the last entry point of the previous section. The entry points for each playback order based on Data reproduction method characterized by reproducing digital data constant. 41. The digital data is reproduced together with the time code in each reproduction order from a data recording medium to which a time code is given in a bit stream in each reproduction order. Data playback method. 42. Digital data is reproduced together with the time code in each reproduction order from a data recording medium to which a common time code increasing in the reproduction order is given in any reproduction order in the bit stream. The data reproducing method according to claim 40. 43. The digital data is reproduced together with the track number in each reproduction order from a data recording medium to which a track number is given in a bit stream for each reproduction order. Data playback method. 44. Digital data is reproduced together with the track number for each reproduction order from a data recording medium provided with a common track number which increases in the reproduction order in any reproduction order in the bitstream. The data reproducing method according to claim 40. 45. Digital data is reproduced in each reproduction order from a data recording medium recorded as an access unit in which the access units of the first elementary stream immediately before and immediately after the jump point of each section are completed. The data reproducing method according to claim 40, wherein: 46. Digital data is reproduced in each reproduction order from a data recording medium on which an access unit encoded so as not to perform prediction or reference between access units across a jump point of each section is recorded. The data reproducing method according to claim 40, wherein: 47. Digital data is divided into packets, a plurality of playback orders are set by selectively designating a plurality of entry points to be accessed, and a rating code is added to each entry point. A data reproducing method for reproducing the digital data from a data recording medium recorded with identification information for each of a plurality of reproduction orders specifying an entry point, and selecting and specifying a reproduction order of the digital data based on the identification information. A data reproducing method characterized by reproducing digital data by designating an entry point according to the reproduced order. 48. A data reproducing method according to claim 47, wherein a numerical value is reproduced as said identification information, and a reproducing order of digital data is selected by the numerical value. 49. The data reproducing method according to claim 47, wherein character string information is reproduced as the identification information, and a reproduction order of digital data is selected according to the character string information. 50. The data reproducing method according to claim 47, wherein the reproducing order of the digital data is selected according to the identification information defined for each country. 51. The data reproducing method according to claim 47, wherein a reproducing order of digital data of a plurality of programs is selected according to identification information of each program. 52. A reproduction order in which a plurality of sections are combined is set by dividing digital data into packets and selectively specifying a plurality of entry points at which access is to be started. For each reproduction order, The digital data is reproduced from a data recording medium in which the start address and end address of the section, the start address of the next section, and the address of the last entry point of the previous section are given and recorded in the bit stream. Which is a data reproducing device for reproducing the data, the start and end addresses of each section given in the bit stream of the reproduced data reproduced from the data recording medium, the start address of the next section, and the last entry of the previous section. Address detection hand that detects the address of the point And a reproduction order control means for controlling the reproduction order of the digital data based on the address detected by the address detection means, and a reproduction processing means for controlling the reproduction order of the digital data and reproducing the digital data in each reproduction order. A data reproducing apparatus comprising: 53. A data reproducing device for reproducing the digital data from a data recording medium to which a time code is given in a bit stream for each reproducing order, wherein the reproducing processing means comprises: 53. The data reproducing apparatus according to claim 52, which reproduces digital data together with a time code. 54. A data reproducing apparatus for reproducing the digital data from a data recording medium provided with a common time code which increases in the reproducing order in any reproducing order in the bit stream, wherein the reproducing processing means comprises: 53. The data reproducing apparatus according to claim 52, wherein digital data is reproduced together with the time code for each reproduction order. 55. A data reproducing apparatus for reproducing the digital data from a data recording medium to which a track number is given in a bit stream for each reproducing order, wherein the reproducing processing means is for each reproducing order. 53. The data reproducing apparatus according to claim 52, wherein digital data is reproduced together with the track number. 56. A data reproducing apparatus for reproducing the digital data from a data recording medium provided with a common track number which increases in the reproducing order in any reproducing order in the bit stream, wherein the reproducing processing means comprises: 53. The data reproducing apparatus according to claim 52, wherein the digital data is reproduced together with the track number in each reproduction order. 57. A data reproducing apparatus for reproducing the digital data from a data recording medium recorded as an access unit in which the access units of the first elementary stream immediately before and immediately after the jump point of each section are completed. 53. The data reproducing apparatus according to claim 52, wherein the reproduction processing means reproduces digital data in each reproduction order. 58. A data reproducing device for reproducing digital data from a data recording medium on which an access unit encoded so as not to perform prediction or reference between access units across a jump point of each section is recorded. 53. The data reproducing apparatus according to claim 52, wherein the reproduction processing means reproduces the digital data in each reproduction order. 59. Digital data is divided into packet units, a plurality of reproduction orders are set by selectively designating a plurality of entry points at which access is to be started, and a rating code is added to each entry point. A data reproducing device for reproducing the digital data from a data recording medium recorded with identification information for each of a plurality of reproduction orders specifying an entry point, the identification information detecting detecting the identification information reproduced from the data recording medium. Means, a reproduction order selection means for selecting a reproduction order of the digital data based on the identification information detected by the identification information detection means, and an entry point in accordance with the reproduction order specified by the reproduction order selection means. Play the data and convert the digital data according to the rating code. A data reproducing apparatus comprising: a reproduction processing unit for outputting. 60. The data reproducing apparatus according to claim 59, wherein the identification information detecting means detects a numerical value as the identification information. 61. The data reproducing apparatus according to claim 59, wherein the identification information detecting means detects character string information as the identification information. 62. The identification information detecting means detects the identification information defined for each country.
A data reproducing apparatus according to claim 1. 63. The data reproducing apparatus according to claim 59, wherein said identification information detecting means detects identification information for each program. 64. An information record in which a signal representing image information to be displayed on a screen is recorded, the image information having at least video information of one video program and control information for displaying various versions of the video program. In the medium, the control information has path information indicating one or more versions of a video information section to be continuously reproduced, and the path information indicates a section to be continuously reproduced. . 65. The video information of 1 video program is 2
65. Divided into parts, the first part having the basic version of the video information, the second part having the additional video information, and one version having at least one section of the additional video information. Information recording medium described. 66. The information recording medium according to claim 64 or 65, wherein the section is address-callable, and the path information has addresses of sections to be continuously displayed. 67. The pass information includes play time information, according to any one of claims 64 to 66.
Information recording medium as described. 68. The track information according to claim 64, wherein the path information has track information indicating division into tracks, and the tracks are individually numbered for each video program. Information recording medium described. 69. The information recording medium according to claim 64, wherein path information for displaying each version is recorded in a searchable information recording area. 70. The information recording medium according to claim 64, wherein the path information is recorded in the vicinity of the entry point and can be reproduced from the entry point without using the previous image information. . 71. The information recording medium according to claim 70, wherein the path information is divided into address-callable sectors, and the path information near one entry point includes address information for each entry point. 72. The information according to claim 70, wherein said video program is divided into tracks, and said path information near one entry point has address information indicating the start of the next track in each version. recoding media. 73. The information recording medium according to claim 70, wherein the path information near one entry point includes address information of video information to be displayed in advance. 74. The information recording medium according to claim 70, wherein the path information near one entry point includes time code information indicating a play time from the start of each version. 75. An information recording medium on which a signal representing image information having at least one video program of video information to be displayed on a screen and control information for displaying various versions of the video program is recorded. Read-out apparatus having a first means for recovering image information and a control means for selectively playing back a video program in accordance with control information, the one or more versions of the video information section to be played in a continuous state. And second means for recovering path information indicating a section to be continuously reproduced, wherein the control means continuously reproduces the video program section according to the path information. A characteristic information recording medium reading device. 76. The information recording according to claim 75, wherein the pass information has play time information of each version for each pass, and means for displaying the play time according to the pass information. Media reading device. 77. The information according to claim 75 or 76, wherein the path information indicating each version is recorded in a searchable area of the information recording medium, and the second means searches the area. Recording medium reading device. 78. The path information is recorded in the vicinity of the entry point of the information recording medium, and reproduction from the entry point is possible without using the previous image information, and the second means is the path information near the entry point. The information recording medium reading device according to any one of claims 75 to 77, wherein: 79. The path information near one entry point has address information of video information to be displayed in advance, and the control means displays the image information in the reverse direction according to the address. 79. The information recording medium reading device according to claim 78. 80. The path information near one entry point has time code information indicating a play time from the start of each version, and the first means displays image information according to the time code information. 80. The information recording medium reading device according to claim 78 or 79. 81. An information record in which a signal representing image information to be displayed on a screen is recorded, the signal representing the image information having at least one video program video information and control information for displaying various versions of the video program. The medium manufacturing apparatus has a coding means for coding image information and a recording means for recording an information signal on an information recording medium, and is one of the video information sections to be displayed in a continuous state as the control information. An apparatus for manufacturing an information recording medium, characterized by having generation means for generating the path information indicating the sections to be continuously displayed in addition to the above versions, and means for adding the path information to the image information. . 82. Display on a screen via an information recording medium on which is recorded an information signal representing image information having video information of at least one video program and control information for displaying various versions of the video program. In the image information transmission method for transmitting image information to be transmitted, the control information has path information indicating one or more versions of the video information section to be continuously displayed, and the path information is continuously displayed. A method of transmitting image information, characterized by indicating a section to be performed. 83. A recording method of an information recording medium for recording a plurality of versions of a program having a plurality of program sections on an information recording medium, wherein the plurality of program sections are encoded to generate a plurality of encoded program sections. A step of adding address information to each of the plurality of encoded program sections; a step of adding version information to each of the plurality of encoded program sections; and the address information and the version on the information recording medium. Recording the plurality of encoded program sections containing information. 84. The encoding step comprises intra-encoding the plurality of program sections,
84. A recording method for an information recording medium according to claim 83, further comprising a step of generating an I frame and a step of predictively encoding the plurality of program sections to generate a P frame. 85. The step of adding the address information,
In each of the plurality of encoding program sections,
The recording method for an information recording medium according to claim 83, further comprising a step of adding start address information and end address information. 86. The step of adding the address information,
In each of the plurality of encoding program sections,
86. A recording method for an information recording medium according to claim 85, further comprising the step of adding start address information of the next section and last entry point information of the previous section. 87. The step of adding address information comprises:
In each of the plurality of encoding program sections,
87. The recording method for an information recording medium according to claim 86, further comprising the step of adding address information of adjacent entry points. 88. A recording method for an information recording medium according to claim 83, further comprising the step of adding time code information to each of said plurality of encoded program sections. 89. The step of adding time code information includes the step of adding time code information regarding the timing of each of the plurality of encoded program sections to the front end of at least one version of the plurality of versions. 89. A recording method for an information recording medium according to claim 88. 90. A recording method for an information recording medium according to claim 83, further comprising the step of adding track number information to each of said plurality of encoded program sections. 91. The step of adding the track number information includes a step of adding track number information regarding a track display of each of the plurality of encoded program sections to a front end of at least one version of the plurality of versions. 91. The recording method for an information recording medium according to claim 90. 92. The recording of the information recording medium according to claim 83, wherein the step of adding version information includes the step of adding at least one pass number to each of the plurality of encoded program sections. Method. 93. The information recording medium according to claim 83, wherein the step of adding the version information includes the step of adding at least one rating information to each of the plurality of encoded program sections. Method. 94. The information recording medium according to claim 83, wherein the step of adding version information includes a step of adding at least one version identification information to each of the plurality of encoded program sections. Recording method. 95. The information recording medium according to claim 83, wherein the step of adding the version information includes a step of adding at least one path descriptor information to each of the plurality of encoded program sections. Recording method. 96. The recording step, wherein the information recording medium is first recorded immediately before one jump point.
84. The information recording medium according to claim 83, further comprising the step of recording the completed access unit in step 5), and the step of recording the second completed access unit immediately after the jump point in the information recording medium. Recording method. 97. The recording step, wherein the first step immediately before each jump point is performed on the information recording medium.
84. The information recording medium according to claim 83, further comprising the step of recording the completed access unit in step 3), and the step of recording the second completed access unit immediately after the jump points in the information recording medium. Recording method. 98. The recording step includes: recording a first plurality of access units on a first side of one jump point; and decoding a prediction or reference to one access unit of the first plurality of access units. 84. The information recording medium according to claim 83, further comprising: recording a second plurality of access units on the second side of the jump point without recording an access unit that is not required for conversion. Recording method. 99. The information recording medium recording method according to claim 83, wherein one of the plurality of versions has one program section on the information recording medium. 100. A recording device of an information recording medium for recording a plurality of versions of a program having a plurality of program sections on an information recording medium, wherein the plurality of program sections are encoded to generate a plurality of encoded program sections. Means for adding address information to each of the plurality of encoding program sections, means for adding version information to each of the plurality of encoding program sections, and the address information and the version on the information recording medium. And a unit for recording the plurality of encoded program sections containing information. 101. The encoding means intra-codes the plurality of program sections,
101. The recording apparatus for an information recording medium according to claim 100, further comprising means for generating an I frame and means for predictively encoding the plurality of program sections to generate a P frame. 102. The information recording apparatus according to claim 100, wherein said means for adding address information comprises means for adding start address information and end address information to each of said plurality of encoded program sections. Media recording device. 103. The means for adding address information comprises means for adding start address information of the next section and last entry point information of the previous section to each of the plurality of encoded program sections. 103. A recording device for an information recording medium according to claim 102. 104. The information recording apparatus according to claim 103, wherein said address information adding means has a means for adding address information of adjacent entry points to each of said plurality of encoded program sections. Media recording device. 105. An information recording medium recording apparatus according to claim 100, further comprising means for adding time code information to each of said plurality of encoded program sections. 106. The means for adding time code information comprises means for adding time code information regarding the timing of each of the plurality of encoded program sections to the front end of at least one version of the plurality of versions. Claim 105.
Recording device of the described information recording medium. 107. An information recording medium recording apparatus according to claim 100, further comprising means for adding track number information to each of said plurality of encoded program sections. 108. The means for adding track number information comprises means for adding track number information regarding the track display of each of the plurality of encoded program sections to the front end of at least one version of the plurality of versions. 11. The method according to claim 10,
7. An information recording medium recording device according to item 7. 109. The information recording medium according to claim 100, wherein the means for adding the version information has a means for adding at least one path number to each of the plurality of encoded program sections. apparatus. 110. A recording medium according to claim 100, wherein said means for adding version information comprises means for adding at least one rating information to each of said plurality of encoded program sections. apparatus. 111. The information recording medium according to claim 100, wherein the means for adding version information includes means for adding at least one version identification information to each of the plurality of encoded program sections. Recording device. 112. The information recording medium according to claim 100, wherein the means for adding the version information comprises means for adding at least one path descriptor information to each of the plurality of encoded program sections. Recording device. 113. The above-mentioned recording means is the above-mentioned information recording medium, the first immediately before one jump point.
100. The information recording medium according to claim 100, further comprising: a unit for recording the completed access unit of the above, and a unit for recording the second completed access unit immediately after the jump point on the information recording medium. Recording device. 114. The recording means comprises a first recording medium immediately before each jump point on the information recording medium.
100. The information recording medium according to claim 100, further comprising: a unit for recording the completed access unit of the above, and a unit for recording the second completed access unit immediately after each of the jump points on the information recording medium. Recording device. 115. The recording means: means for recording a first plurality of access units on a first side of one jump point; and decoding a prediction or reference to one access unit of the first plurality of access units. 101. The information recording medium according to claim 100, further comprising: a unit for recording a second plurality of access units on the second side of the jump point without recording an access unit not required for the conversion. Recording device. 116. The information recording medium recording apparatus according to claim 100, wherein one of the plurality of versions has one program section on the information recording medium. 117. A reproducing method for reproducing one version out of a plurality of versions of a program having a plurality of program sections recorded on an information recording medium, wherein a plurality of version information and a plurality of address information are recorded from the information recording medium. Playing back a first program section including: and detecting, in the first program section, version information corresponding to the one version of the plurality of versions and address information corresponding to the version information. The second information recording medium according to the address information,
And a step of reproducing the program section of. 118. Detecting, in the second program section, second version information corresponding to the one version of the plurality of versions and second address information corresponding to the second version information. 118. The reproducing method according to claim 117, further comprising: and reproducing a third program section corresponding to the second address information from the information recording medium. 119. The reproducing method according to claim 117, further comprising the step of receiving a selection indicating the one version out of the plurality of versions from a user. 120. The reproducing method according to claim 117, wherein the version information includes version identification information. 121. The reproducing method according to claim 117, wherein the version information includes rating information. 122. The reproducing method according to claim 117, wherein the version information includes entry packet information. 123. The reproducing method according to claim 117, wherein the version information includes path descriptor information. 124. Without interruption of the perceptible display,
118. The reproducing method according to claim 117, further comprising the step of displaying the first program section and the second program section to a user. 125. The detection process according to claim 117, further comprising a step of detecting an entry point.
The playback method described. 126. The reproducing method according to claim 125, wherein the entry point is an entry sector. 127. The reproducing method according to claim 125, wherein the entry point is an entry packet. 128. The reproducing method according to claim 125, wherein the entry point is a path descriptor area. 129. The reproducing method according to claim 125, wherein the address information includes start address information of a next section. 130. The multiple program section comprises:
Respectively having time code information, the step of reproducing the first program section has a step of reproducing the first time code information, and the step of reproducing the second program section has a second time. The reproducing method according to claim 117, further comprising the step of reproducing the code information. 131. The multiple program section comprises:
Respectively having track number information, the step of reproducing the first program section has a step of reproducing the first track number information, and the step of reproducing the second program section has a second track. The reproducing method according to claim 117, further comprising the step of reproducing the number information. 132. In an apparatus for reproducing one version out of a plurality of versions of a program having a plurality of program sections recorded on an information recording medium, a plurality of version information and a plurality of address information are recorded from the information recording medium. Means for playing back a first program section including; version information corresponding to the one version of the plurality of versions in the first program section; and means for detecting address information corresponding to the version information, The second information corresponding to the address information from the information recording medium,
And a means for reproducing the program section of. 133. Means for detecting, in the second program section, second version information corresponding to the one version of the plurality of versions and second address information corresponding to the second version information. 133. The reproducing apparatus according to claim 132, further comprising: and a means for reproducing a third program section corresponding to the second address information from the information recording medium. 134. The reproducing apparatus according to claim 132, further comprising means for receiving a selection indicating the one version out of the plurality of versions from a user. 135. The reproducing apparatus according to claim 132, wherein the version information includes rating information. 136. Without interrupting the perceptible display,
133. A reproducing apparatus according to claim 132, further comprising means for displaying the first program section and the second program section to a user. 137. The detection means includes means for detecting an entry point.
The playback device described. 138. The multiple program section comprises:
Each has time code information, the means for reproducing the first program section has a means for reproducing the first time code information, and the means for reproducing the second program section has a second time section. The reproducing apparatus according to claim 132, further comprising means for reproducing the code information. 139. The multiple program section comprises:
Each has track number information, the means for reproducing the first program section has a means for reproducing the first track number information, and the means for reproducing the second program section has a second track 133. A reproducing apparatus according to claim 132, further comprising means for reproducing the number information. 140. A reproducing method for reproducing one of a plurality of versions of a program having a plurality of program sections recorded on an information recording medium, wherein one of the plurality of versions is recorded from the information recording medium.
A reproducing method comprising: version information corresponding to a version; reproducing address information corresponding to the version information; and reproducing a program section corresponding to the address information from the information recording medium. . 141. The reproducing method according to claim 140, wherein the reproducing step includes a step of reproducing the catalog information. 142. The reproducing method according to claim 141, further comprising the step of reproducing a plurality of program sections corresponding to the address information from the information recording medium.