Classifications

• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
  • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
  • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
  • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
  • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
  • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
  • G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
  • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
  • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
  • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
  • G11B27/327—Table of contents
  • G11B27/329—Table of contents on a disc [VTOC]
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
  • G11B20/10—Digital recording or reproducing
  • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
  • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
  • G11B2020/1288—Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical discs
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B2220/00—Record carriers by type
  • G11B2220/20—Disc-shaped record carriers
  • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
  • G11B2220/2537—Optical discs
  • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B2220/00—Record carriers by type
  • G11B2220/40—Combinations of multiple record carriers

Definitions

• the present invention relates to a method and apparatus for reproducing data, and more particularly to a method and apparatus for configuring a composite file structure, and reproducing data using the composite file structure, such
• an optical disc acting as a recording medium capable of recording a large amount of data therein there has been widely used an optical disc acting as a recording medium capable of recording a large amount of data therein.
• a high-density optical recording medium capable of recording/storing high-quality video data and high-quality audio data for a long period of time, for example, a BIu-ray Disc (BD) .
• BD BIu-ray Disc
• the BD based on the next-generation recording medium technique has been considered to be the next-generation optical recording solution capable of storing much more data
• the above-mentioned optical recording/reproducing device must consider not only a basic function for recording/reproducing data of the BD, but also an additional function for enabling the optical recording/reproducing device to interact with peripheral digital devices.
• the optical recording/reproducing device must receive an external input signal, must display the received signal, and must reproduce
• the present invention is directed to a method for configuring a composite file structure for data reproduction, and a method and apparatus for reproducing data using the composite file structure that substantially obviate one or more problems due to limitations and disadvantages of the related art.
• An object of the present invention is to provide a method and apparatus for reproducing new data suitable for a high-
• Another object of the present invention is to provide a method for configuring a composite file structure, which can reproduce not only data of a recording medium but also other data not present in the recording medium, and a method for systemizing the above-mentioned method as standardized information, and providing the systemized result. Additional advantages, objects, and features of the invention
• a method for configuring a composite file structure for data reproduction wherein the composite file structure manages main data recorded in a recording medium and sub-data stored in a local storage while being associated with the main data, the method includes the step of including a downloaded playlist for reproducing the main data and the sub-data in the composite file structure.
• a method for configuring a composite file structure for data reproduction wherein the composite file structure manages main data recorded in a recording medium and sub-data stored in a local storage while being associated with the main data, includes independently including an original playlist for reproducing the main data and a downloaded playlist for reproducing the sub-data in the composite file structure.
• a method for configuring a composite file structure for data reproduction includes independently including an original playlist for reproducing the main data and a downloaded playlist for reproducing the sub-data in the composite file structure.
• configuring a composite file structure for data reproduction includes including a composite playlist formed by combining an original playlist and a downloaded playlist in the composite file structure, such that the main data and the sub-data are simultaneously reproduced.
• configuring a composite file structure for data reproduction includes allowing the composite file structure to include a downloaded playlist substituted for one of the original playlist.
• a method for reproducing data includes (a) recognizing identification (ID)
• an apparatus for reproducing data includes a pickup unit for reading main
• a local storage for storing sub-data associated with the main data
• a decoder for decoding the main data and the sub-data
• a controller for configuring a composite file structure, and controlling a decoding process of the decoder using the configured composite file structure, such that the main data and the sub-data are simultaneously reproduced.
• FIG. 1 is a conceptual diagram illustrating a method and apparatus according to the present invention
• FIG. 2 is a conceptual diagram illustrating a file structure recorded in an optical disc acting as a recording medium
• FIG. 3A is a relationship among files used for reproducing a specific title according to the present invention
• FIG. 3B is a structural diagram illustrating a data record structure recorded in a recording medium according to the present invention
• FIG. 4 is a block diagram illustrating an optical
• FIG. 5A is a block diagram illustrating an apparatus for reproducing data according to the present invention.
• FIG. 5B is a flow chart illustrating a method for reproducing data according to the present invention.
• FIGs. 6A to 7C show a variety of examples constructing a preferred embodiment associated with a method for configuring
• FIGs. 8A to HC show a variety of examples constructing another preferred embodiment associated with a method for configuring a composite file structure according to the present invention
• FIGs. 12A to 13C show a variety of examples constructing yet another preferred embodiment associated with a method for configuring a composite file structure according to the present invention
• FIGs. 14A to 14C show syntaxes of an index file and an object
• FIGs. 15A to 15e show a playlist syntax according to the
• a recording medium for use in the present invention is indicative of all recordable mediums, for example, an optical disc, and a magnetic tape, etc., according to various
• the optical disc such as a BD
• the optical disc will hereinafter be exemplarily used as the above-mentioned recording medium in the present invention. It should be noted that technical ideas of the present g
• composite file structure is indicative of a file structure for reproducing not only data recorded in a recording medium but also other data not present in the recording medium.
• the composite file structure is called a virtual package, and a file structure recorded in the
• the disc package recorded in the recording medium will hereinafter be described with reference to FIG. 2.
• the invention changes the disc package or adds a specific file without changing the disc package, thereby creating a new composite file structure.
• the composite file structure will hereinafter be described with reference to FIGs. 6A to 13C.
• the term "playlist" is one of a plurality of files contained
• the playlist is classified into an original playlist, a download playlist,
• the original playlist is recorded in a disc.
• the download playlist is downloaded from an external part, and is stored in a local storage, etc.
• the composite playlist is formed by combining the original playlist and the download playlist. It is obvious that the term "playlist" will be modified as a different term in another disc instead of the BD, and this modification may also be included in the scope of the present invention.
• title is indicative of a reproduction unit composed of AV streams.
• the title can be recognized by a user, and is reproduced by reproducing the AV streams using the playlist upon receiving a title reproduction command from the user.
• One or more playlists are required to reproduce a
• the title recorded in the disc is called a main title
• a title stored in a local storage is
• auxiliary (Aux) title a title formed by combining the main title and the auxiliary title is called a composite title.
• the main data is indicative of data including at least one main title recorded in a disc
• the auxiliary data is indicative of data including at least one main title recorded in a disc
• data is indicative of data including the auxiliary title stored in the local storage.
• FIG. 1 is a conceptual diagram illustrating a method and apparatus according to the present invention. Unified usages of the optical recording/reproducing 10 and peripheral devices are shown in FIG. 1.
• the optical recording/reproducing device 10 can record/reproduce data in/from various optical discs having different formats. If necessary, the optical recording/reproducing device 10 can record/reproduce specific data in/from only a specific optical disc such as a BD, or can reproduce the data from the optical disc without recording the data in the same.
• the present invention uses a BD-player capable of reproducing data from the BD or a BD-recorder capable of recording data in the BD in consideration of both BD standard completion and correlation with peripheral devices as a preferred embodiment for the convenience of description. It is well known in the art that the optical recording/reproduction device 10 is also applicable to a driver embedded in a specific device such as a computer.
• the optical recording/reproducing device 10 records or reproduces data in/from the optical disc 30, receives an
• representative external input signals may be determined to be a DTV-associated signal and an Internet-associated signal, etc.
• the Internet is indicative of a communication network to which a user easily gains access, such that the user can download specific Internet data using the optical recording/reproducing device 10, and can use the downloaded data.
• the present invention aims to reproduce the main data and the
• the present invention aims to reproduce the main data in the optical disc 30, and management information for reproducing the main data stored in other storage places other than the optical disc such as the Internet.
• sub-data For the convenience of description, although a signal recorded in the disc is called the main data, and other signals existing in the outside of the disc are called the sub-data, it should be noted that the main data and the sub- data are not limited to only specific data. Generally, sub- data may be indicative of audio data, presentation graphic (PG) data, or interactive graphic data, etc., but the sub- data may also be indicative of a stream including the above- mentioned data and video data. In other words, data
• a predetermined file structure must be established between the main data and the sub-data. Accordingly, a file structure
• FIG. 2 is a conceptual diagram illustrating a file structure recorded in an optical disc acting as a recording medium.
• the file structure according to the present invention includes one or more BD directories (BDMV) in a single root directory.
• the BD directory includes an index file "index.bdmv” and an object file "MovieObject.bdmv” acting as a general file capable of ensuring user interactivity.
• the file structure includes a variety of directories for storing information of actual data recorded in a disc and other information associated with a method for
• a playlist directory PLAYLIST
• CLIPINF clip information directory
• STREAM stream directory
• AUXDATA auxiliary directory
• the AUXDATA directory includes an additional data file for reproducing data of the disc.
• the AUXDATA directory includes a "Sound.bdmv" file for providing a user with sound data when an interactive graphic function is
• the stream directory includes a plurality of AV
• the above-mentioned stream may also be called a clip file in the BD standard.
• the multiplexed information is called an AV stream, and a single title is configured as at least one AV stream file.
• the clip information (Clip-info) directory (CLIPINF) is
• the clip-info files (*.clpi) record attribute information and timing information of the stream files (i.e., clip files) therein.
• the clip-info files (*.clpi) connected to the stream files (*.tt ⁇ 2ts) on a one-to-one basis are generically named a "Clip". In other words, this means that a single stream file (*.m2ts) must correspond to a clip-info file (*.clpi) .
• the playlist directory includes a plurality of playlist files (*.mpls) . Each playlist file (*.mpls)
• the playitem includes one or more playitems (Playltem) for designating a playing interval during which a specific clip is reproduced.
• the playitem includes information associated with a specific clip to be reproduced, i.e., information associated with a reproduction start time (IN-Time) and other information associated with a reproduction termination time (OUT-Time) of a clip determined to be a clip name
• the playlist file (*.mpls) is used as a basic reproduction management file unit contained in an overall file structure, such that it can reproduce a desired clip using a combination of one or more playitems.
• the playlist file (*.mpls) may include data different from reproduction data formed by the playitem.
• the playlist file (*.mpls) may include a sub- playitem (SubPlayltem) distinguished from the playitem
• FIG. 3A is a relationship among files used for reproducing a
• the index file (index.bdmv) includes first . playback information "First Playback” indicative of information associated with a first reproduction image when a corresponding disc is loaded, top menu information "Top_Menu” for providing a menu image, and at least one title
• the optical recording/reproducing device 10 reproduces corresponding clips #1 and #2 according to
• FIG. 3b is a structural diagram illustrating a data record structure recorded in a recording medium according to the present invention. As shown in FIG. 3B, from the viewpoint of an inner area of the disc, the above-mentioned disc structure sequentially includes a file system information area serving as system information for managing overall files,
• a database area for recording a playlist file and a clip-info file to reproduce a recorded AV stream (*.m2ts) a database area for recording a playlist file and a clip-info file to reproduce a recorded AV stream (*.m2ts)
• an AV stream area for recording a plurality of streams composed of
• data recorded in the AV stream area may be determined to be main data, and the main data is composed of one or more main titles as previously stated above.
• the present invention relates to a method for reproducing the main data recorded in the optical disc and the sub-data stored in a local storage, or a method for reproducing the main data using reproduction management information stored in the local storage, and preferred embodiments of the present
• FIG. 4 is a block diagram illustrating the optical recording/reproducing device 10 according to the present invention.
• the optical recording/reproducing device Referring to FIG. 4, the optical recording/reproducing device
• the pickup unit 11 reproduces main data recorded in the optical disc and management information including
• the signal processor 13 controls operations of the pickup unit 11.
• the signal processor 13 receives a reproduction signal from the pickup unit 11, restores the received reproduction signal to a desired signal value, or modulates a signal to be recorded into another signal recorded in the optical disc, such that it transmits the restored or modulated result.
• the local storage 15 stores data or information downloaded from an external part .
• the microprocessor 16 controls mutual
• a controller 12 downloads sub-data existing in the outside of the optical disc upon receiving a command from a user, stores the downloaded sub-data in the local storage 15, and configures a new composite file structure to reproduce the
• the controller 12 reproduces the main data and/or the sub-data using the configured composite file structure.
• a decoder 17 finally decodes output data (i.e., main data and/or sub-data) upon receiving a control signal from the controller 12, and provides the user with the decoded result.
• An encoder 18 converts an input signal into a specific format signal (e.g., an MPEG2 transport stream) upon receiving a
• control signal from the controller 12, and transmits the converted result to the signal processor 13.
• the new composite file structure may be stored in the local storage 15 such that it can be re-used in future. Also, the new composite file structure may be temporarily stored in an
• additional dynamic memory may then be used. If a user stores the sub-data and the composite file structure in the local storage 15, and desires to continuously use the sub-data and the composite file structure in future, it is preferable that the sub-data and the composite file structure are used earlier than the file structure recorded in a disc managing only the main data. A detailed description of the method for configuring the composite file structure will hereinafter be given with
• FIG. 5a is a block diagram illustrating an apparatus 10 for reproducing data of an optical disc according to the present invention.
• FIG. 5B is a flow chart illustrating a method for
• auxiliary Title 1 Aux Title 2, and Aux Title 3
• the controller 12 selects a reproduction title upon receipt of a user request or a system setup command at step S20.
• the controller 12 directs the presence of the auxiliary title to the user, reproduces only the main title
• a disc contained in a disc according to either the user command or the system setup command, reproduces only the auxiliary title stored in the local storage 15, or reproduces a composite title formed by combining the main title and the auxiliary title.
• the main title is reproduced according to a file structure recorded in the disc. Particularly, the main title is reproduced using an original playlist.
• the downloaded playlist for reproducing the auxiliary title is combined with a reproduction management file recorded in the disc, such that a composite file structure is formed.
• the downloaded playlist contained in the composite file structure is then used.
• a composite playlist is configured as necessary, such that the composite title can be reproduced using the composite playlist.
• the new composite file structure is stored in the local storage 15, and may then be employed to reproduce sub-data.
• FIG. 5A shows a specific case in which a
• FIG. 5A shows a predetermined case in
• FIG. 5A shows a predetermined case in which only the sub-data is stored but
• the composite file structure is not stored.
• a method for configuring a composite file structure and a variety of preferred embodiments associated with a reproduction method using the composite file structure will hereinafter be described with reference to FIGs. 6A to 13C. The following characteristics will be commonly applied to the preferred ' embodiments for configuring a composite file structure.
• the local storage 15 must store not only the sub-data but also reproduction management information (e.g., a downloaded playlist, a clip-info, and information for configuring the composite file structure) .
• reproduction management information e.g., a downloaded playlist, a clip-info, and information for configuring the composite file structure
• the above-mentioned reproduction management information must be prepared by a disc author, and must then be downloaded along with the sub- data at the same time.
• the term "Info" contained in the term "Info & stream" acting as contents stored in the local storage 15 is indicative of the reproduction management information.
• some preferred embodiments may store only the reproduction management data other than the sub-data.
• an AV stream in which video data, audio data, and graphic data are multiplexed is suitable for the sub-data of
• the AV stream configures a specific auxiliary title.
• the auxiliary title fully substitutes for the main title recorded in the optical disc, or partially substitutes for the main title.
• the auxiliary title extends or reduces a content of the main title. Otherwise, a new independent title is added to the main title.
• a composite file structure for simultaneously reproducing the main data and the sub-data is configured.
• the original playlist recorded in the disc and the downloaded playlist stored in the local storage are combined in the composite file structure.
• the original playlist and the downloaded playlist may. be
• the composite playlist may be formed by combining the original playlist and the downloaded playlist. A detailed description thereof will hereinafter be given.
• the playlist always includes at least one playitem contained in a main path, a sub-playitem
• SubPlayltem contained in a sub path may also be configured as necessary.
• the present invention exemplarily shows preferred embodiments, each of which uses the playitem contained in the main path as
• FIGs . 6A to 7C show a variety of examples constructing a preferred embodiment associated with a method for configuring a composite file structure according to the present invention.
• the main data and the sub-data are configured independently of each other. Therefore, the original playlist for reproducing the main data and the downloaded playlist for reproducing the sub-data are contained in the composite file structure independently of each other.
• FIGs. 6A to 6D show a variety of examples in which the downloaded playlist substitutes for a corresponding original playlist.
• the examples shown in FIGs. 6A to 6D are made available when all parts of a specific main title are replaced with others using an auxiliary title. A detailed description thereof will hereinafter be given.
• FIG. 6A shows the original playlist (01001.mpls) recorded in the disc 30 and the downloaded playlist (01001__l .mpls) stored in the local storage 15 while being associated with the original playlist (01001.mpls) .
• Each playlist uses three playitems (Playltem #1, Playltem #2, and Playltem #3) as a main path. Each playitem is involved in reproduction of a
• the original playlist (01001.mpls) performs reproduction operations of AV streams (AV stream #1, AV stream #2, and AV stream #3) recorded in the disc using the playitems
• FIG. 6B shows a reproduction management file structure
• an index file index-bdmv
• an object file MenoseObject .bdmv
• An index file index-bdmv
• An object file MenoseObject .bdmv
• a plurality of playlist files e.g., 01001.mpls, 01002.mpls, ...) including the original playlist (01001.mpls) are contained in the playlist directory (PLAYLIST) .
• stream files (11111.m2ts, 22222.m2ts, and 33333.m2ts) are indicative of AV streams (AV stream #1, AV stream #2, and AV stream #3) reproduced by playitems
• Clip-info files (11111.clpi, 22222.clpi, and 33333.clpi) are employed to reproduce stream files (Illll.m2ts, 22222.m2ts, and 33333.m2ts) , respectively.
• the downloaded playlist (01001_l.mpls) performs reproduction operations of the AV streams (AV stream #a, AV stream #b, and AV stream #c stored in the local storage 15 using the playitems (Playltem #1, Playltem #2, and Playltem #3) ,
• FIG. 6C shows a file structure stored in the local storage 15 including the downloaded playlist
• information stored in the local storage 15 includes the downloaded playlist (01001_l .mpls) in the playlist directory (PLAYLIST) , includes clip-info files (*.clpi) in the stream directory (STREAM), and includes a stream file (*.m2ts) in the stream directory (STREAM) .
• stream files (aaaaa.m2ts, bbbbb.m2ts, and ccccc.m2ts) are indicative of AV streams #a, #b, and #c contained in the downloaded playlist (01001_l .mpls) shown in FIG. 6A, respectively.
• the clip-info files (aaaaa.clpi,
• bbbbbb.clpi, and ccccc.clpi) are indicative of files for reproducing stream files (aaaaa.m2ts, bbbbb.m2ts, and ccccc,m2ts) .
• FIG. 6D shows a composite file structure.
• the composite file structure is reproduced along with the main data using sub- data (AV streams #a, #b, and #c) and the downloaded playlist (01001_l.mpls) stored in the local storage 15.
• sub- data AV streams #a, #b, and #c
• downloaded playlist 01001_l.mpls
• the downloaded playlist (01001_l .mpls)
• the clip-info files (aaaaa.clpi, bbbbb.clpi, and ccccc.clpi)
• the stream files (aaaaaa.m2ts, bbbbb.m2ts, and cccccc.m2ts) contained in the composite file structure shown in FIG.
• the original playlist (01001_l .mpls) is a file for reproducing a single title (Title #1) , AV streams (AV stream #a, AV stream #b, and AV stream #c)
• FIGs. 7A to 7C show an example in which new sub-data is added by the downloaded playlist. For example, the example shown
• FIGs. 7A to 7C is available when a new independent
• FIG. 7A shows the original playlist (01001.mpls) recorded in the disc 30 and the downloaded playlist (01003.mpls) stored
• the playlist (01001.mpls) includes a plurality of playitems (Playltem #1, Playltem #2, and Playltem #3) as a main path.
• the downloaded playlist (01003.mpls) includes a playitem (Playltem #1) as a main path.
• the original playlist (01001.mpls) reproduces and manages AV streams (AV stream #1, AV stream #2, and AV stream #3) recorded in the disc using the playitems (Playltem #1, Playltem #2, and Playltem #3) .
• FIG. 6B shows an overall
• reproduction management file structure including the above- mentioned original playlist (01001.mpls) .
• the following disc file structure is the same as that of FIG. 6B, such that a detailed description thereof will herein be omitted for the convenience of description.
• the downloaded playlist (01003.mpls) reproduces and manages the AV stream (AV stream #d) stored in the local storage 15 using the playitem (Playltem #1) .
• FIG. 7B shows a file structure contained in the local storage including the downloaded playlist (01003.mpls) .
• file structure of the local storage 15 includes the downloaded playlist (01003.mpls) contained in the playlist (PLAYLIST) , a clip-info file (ddddd.clpi) contained in the playlist
• the stream file (ddddd.m2ts) is indicative of an AV stream (AV stream #1) reproduced by the playitem (Playltem #1) contained in the downloaded playlist (01003.mpls) shown in FIG. 7A.
• the clip-info file (ddddd.clpi) is indicative of a file capable of reproducing the stream file (ddddd.m2ts) , and is contained in the file structure along with its associated stream file (ddddd.m2ts) .
• FIG. 1C shows a composite file structure, which is reproduced along with the main data using both the sub-data (i.e., AV stream #d) and the downloaded playlist (01003.mpls) stored in the local storage 15.
• the downloaded playlist (01003.mpls) is added to the original playlists (01001.mpls, 01002.mpls)
• the clip-info file (ddddd.clpi) corresponding to the downloaded playlist (01003.mpls) is added to the clip-info files
• the stream file (dddddd.m2ts) is independently added to the stream files (11111.m2ts, 22222.m2ts, 33333.m2ts, and 44444.m2ts) . Therefore, provided that the original playlists (01001.mpls and 01002.mpls) correspond to a file for reproducing a single title (e.g., Title #1) and a file for reproducing a single title (e.g., Title #2), this means that a new title (e.g.,
• the downloaded playlists shown in FIGs. 6A and 7A are characterized in that they independently reproduce sub-data (i.e., an auxiliary title) stored in the local
• FIGs. 8A to 1OC show a variety of examples in which the composite file structure is formed by combining the main data and the sub-data. As can be seen from FIGs. 8A to 1OC, the downloaded playlist for reproducing the main data and the
• the downloaded playlists shown in FIGs. 8A, 9A, and 1OA are characterized in that they reproduce not only the sub-data stored in the local storage 15 but also the main data contained in the disc, differently from the above-mentioned preferred embodiments shown in FIGs. 6A and 7A.
• FIGs. 8A to 8C show examples in which the original playlist is replaced with the downloaded playlist. For example, a specific case in which a specific main title is partially replaced with an auxiliary title is shown in FIGs. ' 8A to 8C. A detailed description thereof will hereinafter be given.
• FIG. 8A shows the original playlist (01001.mpls) recorded in the disc 30 and the downloaded playlist (01001_l .mpls) stored
• the downloaded playlist (01001_l .mpls) is associated with the original playlist (01001.mpls) .
• Each playlist includes a plurality of playitems (Playltem #1, Playltem #2, and Playltem #3) as a main path. Individual playitems are associated with reproduction of a specific AV stream.
• the original playlist (01001.mpls) reproduces or manages AV streams (AV stream #1, AV stream #2, and AV stream #3) recorded in the disc using playitems (Playltem #1, Playltem
• the downloaded playlist (01001_l .mpls) includes three playitems (Playltem #1, Playltem #2, and Playltem #3) .
• the playitem (Playltem #1) reproduces and manages the AV stream
• Playitem #3 reproduces and manages the AV stream (AV stream #3) as the main data recorded in the disc.
• the playitem (Playltem #2) reproduces and manages an AV stream
• FIG. 8B shows a reproduction management file structure
• the file structure of the local storage 15 includes the downloaded playlist (01003.mpls) in the playlist directory (PLAYLIST) , includes a clip-info file
• the stream file (eeeee.m2ts) is indicative of an AV stream (AV stream #e) reproduced by the playitem
• FIG. QC shows a composite file structure, which is reproduced along with the main data using both the sub-data (i.e., AV stream #e) and the downloaded playlist (01001_l .mpls) stored in the local storage 15.
• the sub-data i.e., AV stream #e
• the downloaded playlist 01001_l .mpls
• the downloaded playlist (01001_l.mpls) is added to the original playlist (01002.mpls)
• the clip-info file (eeeee.clpi) corresponding to the downloaded playlist (01001_l .mpls) is added to the clip-info files (11111.clpi, 33333.clpi, and 44444.clpi)
• the stream file (eeeee.m2ts) is independently added to the stream files (11111.m2ts, 33333.m2ts, and 44444.m2ts) .
• the original playlist (01001.mpls) is replaced with the downloaded playlist (01001_l .mpls)
• the clip-info file (22222.clpi) is replaced with the clip-info file (eeeee.clpi) contained in the local storage 15
• the stream file (22222.m2ts) is replaced with the stream file (eeeee.m2ts) .
• the composite file structure includes the remaining files other than the above-mentioned added files. In this case, the remaining files other than the above-mentioned added files, for example, the original playlist (01002.mpls) , the
• clip-info file (44444.clpi) and the stream file (44444.m2ts) are configured to have the same structure as those of files originally recorded in the disc.
• the index file (index.bdmv) and the object file (MovieObject.bdmv) are also included in
• FIGs. 9A to 9C show a specific case in which the original playlist is replaced with the downloaded playlist.
• FIGs. 9A to 9C show a predetermined case in which a specific main title is partially extended using the auxiliary title. A detailed description thereof will hereinafter be given.
• FIG. 9A shows the original playlist (01001.mpls) recorded in the disc 30 and the downloaded playlist (01001_l .mpls) stored
• the downloaded playlist (01001_l.mpls) is associated with the original playlist (01001.mpls) .
• the original playlist (01001.mpls) includes a plurality of playitems (Playltem #1, Playltem #2, and Playltem #3) as a main path.
• the downloaded playlist (01001_l.mpls)
• (01001_l .mpls) includes a plurality of playitems (Playltem #1, Playltem #1-1, Playltem #2, Playltem #3) as a main path. Individual playitems are associated with reproduction of a specific AV stream.
• the original playlist (01001.mpls) reproduces or manages AV
• the downloaded playlist (01001_l .mpls) includes four playitems (Playltem #1, Playltem #1-1, Playltem #2, and Playltem #3) .
• the playitem (Playltem #1) reproduces and manages the AV stream (AV stream #1) as main data recorded in the disc.
• the playitem (Playltem #2) reproduces and manages the AV stream (AV stream #2) as the main data recorded in the disc.
• the playitem (Playltem #3) reproduces and manages an
• AV stream #3 as the main data recorded in the disc.
• the playitem (Playltem #1-1) reproduces and manages an
• FIG. 9B shows a file structure contained in the local storage
• the file structure of the local storage 15 includes the downloaded playlist (01001_l.mpls) in the playlist directory (PLAYLIST) , includes a clip-info file (fffff.clpi) in the clip-info directory (CLIPINF) , and includes a stream file
• the stream file (fffff.m2ts) is indicative of an AV stream (AV stream #f) reproduced by the playitem (Playltem #1-1) contained in the downloaded playlist
• the clip-info file (fffff.clpi) is indicative of a file capable of reproducing the stream file (fffff.m2ts) , and is contained in the file structure along with its corresponding stream file
• FIG. 9C shows a composite file structure, which is reproduced along with the main data using both the sub-data (i.e., AV stream #f) and the downloaded playlist (01001_l .mpls) stored
• the downloaded playlist (01001_l.mpls) is added to the original playlist (01002.mpls) , the clip-info file (fffff.clpi) corresponding to the downloaded playlist
• FIGs. 1OA to 1OC show a specific case in which the original playlist is replaced with the downloaded playlist.
• FIGs. 1OA to 1OC show a predetermined case in which a specific main title is partially changed using the auxiliary title. A detailed description thereof will hereinafter be described.
• FIG. 1OA shows the original playlist (01001.mpls) recorded in the disc 30 and the downloaded playlist (01001_l .mpls) stored in the local storage 15.
• the downloaded playlist (01001_l .mpls) is associated with the original playlist (01001.mpls) .
• the original playlist (01001.mpls) includes a plurality of playitems (Playltem #1, Playltem #2, and Playltem #3) as a main path.
• the downloaded playlist (01001_l.mpls) includes a plurality of playitems (Playitems
• the original playlist (01001.mpls) reproduces or manages AV streams (AV stream #1, AV stream #2, and AV stream #3) recorded in the disc using playitems (Playltem #1, Playltem
• the downloaded playlist (01001_l .mpls) includes two playitems (Playltem #1 and Playltem #4) .
• the playitem (Playltem #1) reproduces and manages the AV stream (AV stream #1) as main data recorded in the disc.
• FIG. 1OB shows a file structure contained in the local storage 15 including the downloaded playlist (01001_l.mpls) .
• the file structure of the local storage 15 includes the downloaded playlist (01001_l .mpls) in the playlist directory
• the clip-info file (ggggg.clpi) includes a clip-info file (ggggg.clpi) in the clip-info directory (CLIPINF) , and includes a stream file (ggggg.m2ts) in the stream directory (STREAM) .
• the stream file (ggggg.m2ts) is indicative of an AV stream (AV stream #g) reproduced by the playitem (Playltem #4) contained in the downloaded playlist (01001_l.mpls) shown in FIG. 1OA.
• the clip-info file (ggggg.clpi) is indicative of a file capable of reproducing
• the stream file (ggggg.m2ts) , and is contained in the file structure along with its corresponding stream file
• FIG. 1OC shows a composite file structure, which is reproduced along with the main data using both the sub-data
• the downloaded playlist (01001_l.mpls) stored in the local storage 15.
• the downloaded playlist (01001_l.mpls) is
• the clip-info file corresponding to the downloaded playlist (01001_l.mpls) is added to the clip-info files (11111.clpi, 22222.clpi, 33333.clpi, and 44444.clpi) , and the stream file
• index file index.bdmv
• object file MenovieObject.bdmv
• FIGs. HA to HC show a variety of examples in which the composite file structure is formed by combining the main data and the sub-data, when the composite file structure according to the present invention is formed.
• the preferred embodiment shown in FIGs. HA to HC is characterized in that a composite playlist for reproducing the main data and the sub- data is formed and is included in the composite file structure.
• the preferred embodiment shown in FIG. HA includes a playitem for reproducing only the sub-data in the downloaded playlist, differently from other preferred embodiments shown in FIGs. 8A to 1OC.
• FIGs. HA to HC show a specific case in which a composite playlist is formed by combining the downloaded playlist and the original playlist.
• FIGs. HA to HC show a predetermined case in which a specific main title is partially changed using the auxiliary title. A detailed description thereof will hereinafter be described.
• FIG. HA shows the original playlist (01001.mpls) recorded in the disc 30 and the downloaded playlist (01001 1.mpls) stored in the local storage 15.
• the downloaded playlist (01001 1.mpls) is associated with the original playlist (01001.mpls) .
• the original playlist (01001.mpls) includes a plurality of playitems (Playltem #1, Playltem #2, and Playltem #3) as a main path.
• the downloaded playlist (01001_l .mpls) includes a playitem (Playltem #2) as a main path.
• the original playlist (01001.mpls) is reproduced in the order
• FIG. HB shows a file structure contained in the local
• the file structure of the local storage 15 includes the downloaded playlist (01001_l.mpls) in the playlist directory (PLAYLIST) , includes a clip-info file (hhhhh.clpi) in the
• CIPINF clip-info directory
• STREAM stream directory
• the downloaded playlist (01001_l .mpls) of the reproduction management file structure shown in FIG. HB includes only one playitem (Playltem #2) for only one AV stream (AV stream #h) acting as sub-data present in the local storage 15, differently from the above-mentioned preferred embodiments shown in FIGs. 8A to 1OC.
• the above-mentioned downloaded playlist (01001_l .mpls) is also provided.
• FIG. HC shows a composite file structure, which is reproduced along with the main data using both the sub-data (i.e., AV stream #h) and the downloaded playlist
• the composite file structure includes a composite playlist, which is formed by combining the downloaded playlist (01001_l .mpls) of FIG. HB and the
• the clip-info files (11111.clpi, hhhhh.clpi, and 33333.clpi) corresponding to the composite playlist and the stream files
• the original playlist (01001.mpls) is replaced with the composite playlist combined with the downloaded playlist (01001_l .mpls)
• the clip-info file (22222.clpi) is replaced with the clip-info file stored in the local storage
• the stream file (22222.m2ts) is replaced with the stream file (hhhhh.m2ts) stored in the local storage 15.
• FIGs. 12A to 13C show a variety of examples in which only the main data is reproduced, when the composite file structure
• FIGs. 12A to 13C is characterized in that the downloaded playlist for reproducing the main data and the original playlist are included in the composite file structure.
• the preferred embodiment shown in FIGs. 12A to 13C does not include an- AV stream in the local storage 15, but includes only the downloaded playlist capable of reproducing the main data, differently from the above-mentioned preferred embodiments shown in FIGs. 8A to HC.
• FIGs. 12A to 12C show a specific case in which the original playlist is replaced with the downloaded playlist. For example, according to the preferred embodiment shown in FIGs.
• reproduction management information e.g., the downloaded playlist
• the AV stream is not downloaded in the local storage 15.
• FIGs. 12A to 12C a specific case in which the main data recorded in the disc is reproduced using the downloaded playlist is shown in FIGs. 12A to 12C. Therefore, the above-
• FIGs. 12A to 12C can be applied to a method for changing/editing a reproduction scenario by the original playlist contained in the disc.
• FIG. 12A shows the original playlist (01001.mpls) recorded in the disc 30 and the downloaded playlist (01001_l .mpls) stored in the local storage 15.
• the downloaded playlist (01001_l .mpls) is associated with the original playlist (01001.mpls) .
• the original playlist (01001.mpls) includes a plurality of playitems (Playltem #1, Playltem #2, and Playltem #3) as a main path.
• the downloaded playlist (01001__l.mpls) includes a plurality of playitems (Playltem #1, Playltem #2, and Playltem #3) as a main path.
• the original playlist (01001.mpls) reproduces or manages AV streams (AV stream #1, AV stream #2, and AV stream #3) recorded in the disc using playitems (Playltem #1, Playltem
• the downloaded playlist (01001_l.mpls) includes three playitems (Playltem #1, Playltem #2, and Playltem #3) .
• the playitem (Playltem #1) reproduces and manages the AV stream (AV stream #2) as main data recorded in the disc.
• Playltem #2 reproduces and manages the AV stream
• AV stream #1 main data recorded in the disc.
• the playitem (Playltem #3) reproduces and manages the AV • stream
• the original playlist (01001.mpls) is
• FIG. 12B shows a reproduction management file structure contained in the lccal storage 15 including the downloaded playlist (01001_l .mpls) .
• the file structure of the local storage 15 includes only the downloaded playlist (01001_l.mpls) in the playlist directory (PLAYLIST) , and does not include the clip-info directory (CLIPINF) and the stream directory (STREAM) .
• the downloaded playlist (01001_l.mpls) includes only the playitems (Playltem #1, Playltem #2, and
• Playltem #3 capable of reproducing the AV streams (AV stream
• FIG. 12C shows a composite file structure, which is reproduced along with the main data using the downloaded playlist (01001_l .mpls) .
• the original playlist (01001.mpls) is replaced with the downloaded playlist (01001_l .mpls) , and the remaining files have the same structure as the file structure
• the files reproduced by the newly-replaced downloaded playlist (01001_l .mpls) are determined to be clip-info files (11111.dpi, 22222.clpi, and 44444.clpi) and stream files
• FIGs. 13A to 13C show a preferred embodiment in which the original playlist is replaced with the downloaded playlist. In the same manner as in FIG. 12A, the preferred embodiment shown in FIGs. 13A to 13C downloads only reproduction
• the preferred embodiment shown in FIGs. 13A to 13C shows a specific case in which the main data recorded in the disc is reproduced using the downloaded playlist.
• the downloaded playlist and the original playlist reproduce the same AV stream file, but they have different IN_time (i.e., a reproduction start time) and 0UT_time (i.e., a reproduction termination time) information,
• FIG. 13A shows the original playlist (01001.mpls) recorded in the disc 30 and the downloaded playlist (01001_l .mpls) stored in the local storage 15.
• the downloaded playlist (01001_l .mpls) is associated with the original playlist (01001.mpls) .
• the original playlist (01001.mpls) includes a plurality of playitems (Playltem #1, Playltem #2, and Playltem #3) as a main path.
• the original playlist (01001_l.mpls) includes a plurality of playitems (Playltem #1, Playltem #2, and Playltem #3) as a main path.
• the original playlist (01001.mpls) reproduces and manages the AV streams (AV stream #1, AV stream #2, and AV stream #3) recorded in the disc using three playitems (Playltem #1, Playltem #1, and Playltem #1) .
• the reproduction start time (IN_time) and the reproduction termination time (OUT__time) of the AV stream (AV stream #1) correspond to a predetermined
• the reproduction start time (IN_time) and the reproduction termination time (0UT_time) of the AV stream (AV stream #2) correspond to a
• the downloaded playlist (01001_l.mpls)
• the reproduction start time (IN_time) and the reproduction termination time (0UT_time) of the AV stream (AV stream #2) correspond to a predetermined
• the reproduction start time (IN__time) and the reproduction termination time (OUT_time) of the AV stream (AV stream #3) correspond to a
• AV streams are not stored as sub-data in the local storage 15, and only the downloaded playlist is stored in the local storage 15.
• the downloaded playlist has different IN_time and 0UT__time information in association with the same AV stream as compared to the original playlist, such that a desired effect that title scenario is changed or re-edited by
• FIG. 13B shows a reproduction management file structure contained in the local storage 15 including the downloaded playlist (01001_l.mpls) .
• the file structure of the local storage 15 includes only the downloaded playlist
• the downloaded playlist (01001_l .mpls) includes the playitems (Playltem #1, Playltem #2, and
• Playltem #3 capable of reproducing the AV streams (AV stream #1, AV stream #2, and AV stream #3) as main data of the disc, respectively.
• IN_time and 0UT_time information of the downloaded playlist is different from that of the original playlist.
• FIG. 13C shows a composite file structure, which is reproduced along with the main data using the downloaded playlist (01001_l .mpls) .
• the original playlist (01001.mpls) is replaced with the downloaded playlist (01001_l.mpls) , and the
• the files reproduced by the newly-replaced downloaded playlist (01001_l .mpls) are determined to be clip-info files
• index file index.bdmv
• object file MenoeObject .bdmv
• FIGs. 14A to 15E hierarchically show syntaxes of a composite file structure capable of reproducing the sub-data of the local storage 15 and/or the main data of the disc.
• FIG. 14A shows a syntax associated with a header part of the index file (index.bdmv) .
• specific information capable of identifying an index file for example, "INDX” character code, is recorded in the "type_indicator” field.
• Information indicative of version information of the index file is recorded in the "version_number” field.
• the "Indexes_start_address” field records location information indicative of a file start position of the "Indexes ()" field.
• the index file (index.bdmv) includes the "ApplnfoBDMV() " field for providing information associated with a disc
• FIG. 14B shows a syntax of the "Indexes ()" field contained in
• index file index.bdmv
• size information of the "Indexes ()" field is recorded in the "length” field.
• the "FirstPlayback() " field includes "FirstPlayback_mobj_id_ref" information for retrieving
• index file is recorded in the "number_of_Title” field.
• a plurality of the "Title ()” fields equal to the above- mentioned number information are present in the "number_of_Title” field.
• the "Title ()” field includes "Title_mobj_id_ref” information for retrieving specific information "mobj_id” contained in the object file
• the "Title_jplayback_type” information indicative of attribute information of a corresponding title.
• the "Title_playback_type” information is indicative of specific information capable of classifying categories of the title. For example, “Type 1" is indicative of a main title recorded in the disc, “Type 2” is indicative of an auxiliary (Aux) title stored in the local storage, and
• Type 3 is indicative of a composite title formed by combining the main data recorded in the disc and the sub-data stored in the local storage.
• FIG. 14C shows a syntax associated with a header part of the movie object file (MovieObject .bdmv) .
• specific information capable of identifying the object file for example, "MOBJ" character code is recorded in the "type_indicator” field.
• Information indicative of version information of the object file is recorded in the
• Each "mobj_id” unit includes a specific reproduction command (also called
• a "playback_PlayList” command is used as an example of the "navigation__command” information. If a specific condition is satisfied, other commands capable of interrupting a
• FIGs. 15A to 15E show a syntax of a playlist file (xxxxx.mpls) for reproducing a specific title.
• FIG. 15A shows a syntax associated with a header part of the playlist file (xxxxx.mpls) .
• specific information capable of identifying a playlist file for example, an "MLPS" character code, is recorded in the ⁇ type_indicator" field.
• Information indicative of version information of the playlist file is recorded in the
• the "PlayList_start_address” field records location information indicative of a file start position of the "PlayList ()" field.
• the "PlayListMark_start_address” field records location
• the playlist file includes the "ApplnfoPlayList () " field including information associated with a playlist playback method (PlayList_playback_type) ; the "PlayList O " field including playitem and sub-path information; and the "PlayListMark() " field including mark pointer information needed for special reproduction.
• FIG. 15B shows a header syntax of the "PlayList ()" field contained in the playlist file (index.bdmv) .
• size information of the "PlayList ()" field is recorded in the "length” field.
• Information indicative of the number of playitems present in the playlist file is recorded in the "number_of_PlayItems” field.
• Information indicative of the number of sub-paths present in the playlist file is recorded in the "number_of_SubPaths" field.
• Each "PlayitemO" field includes the
• STN_table () field for recording all stream information usable in a corresponding playitem.
• FIG. 15C shows a header syntax of the "STN_table () " field
• stream information equal to the number of the streams is recorded.
• Each stream information is classified into the "stream_entry” field for recording stream type information, main clip information, or sub-clip information, and the "stream_attributes () " field for recording attribute information of the stream.
• FIG. 15D shows a syntax of the "stream_entry” field contained in the “STN_table () " field.
• size information of the "stream_entry ()" field is recorded in the "length"
• Source information of a corresponding stream is recorded in the "type" field.
• the "type 1" information acting as -a stream determined by the playitem is indicative of a stream contained in a main clip.
• the "type 2" information determined by a sub-path is indicative of a
• the "type 3" information determined by the playitem is indicative of a stream stored in the local storage 15.
• the "type 4" information determined by the sub-path is indicative of a stream stored in the local storage 15.
• FIGs. 6A to 13C exemplarily show only a first case in which all the streams are reproduced by the playitem contained in the main path, a second case in which the streams are
• PID Packet ID
• PID information of a corresponding main clip is recorded in the "ref__to_stream_PID_of_mainclip” field. If the type of the current "stream_entry() " field is set to "2" or 4", PID information of a corresponding sub-clip is recorded in the "ref_to_stream_PID_of_subclip” field. If there are a plurality of sub-paths, specific information capable of identifying individual sub-paths is recorded in the "ref_to_SubPath_id” field. Also, information capable of identifying a corresponding sub-clip is recorded in the "ref__to_Subclip_entry_id” field. If the type of the current "stream_entry() " field is set to "3", PID information of a corresponding local storage is recorded in the "ref__to_stream_PID_of_clip_in_localstorage" field.
• FIG. 15E shows a syntax of the "stream_attri butes()" field contained in the "STN_table () " field. In other words, size
• the "stream_coding_type” field is set to "0x02"
• the "frame_rate” field is used as attribute information.
• the "stream_coding_type” field is set to "0x80", “0x81” or “0x82", this means that a current stream is an audio stream, and the "audio_jpresentatin__type” field and the "audio_language_code” field are used as attribute information.
• the "audio_jpresentatin_type” field records
• the "audio_presentation_code" field records language information of the audio stream.
• the "stream_coding_type” field is set to "0x90", this means that a current stream is a prsentation graphic stream, and the "PG_language_code” field for recording presentation graphic language information is used as attribute information. If the "stream_coding_type” field is set to "0x91”, this means that a current stream is an interactive graphic stream, and the "IG_language_code” field for recording interactive graphic language information is used as attribute information. If the "stream_coding_type” field is set to "0x92”, this means that a current stream is a text subtitle stream, and
• the "textST_language_code” field for recording text subtitle language information is used as attribute information
• the "character__code” field for recording character code information of a text subtitle is used as such attribute information.
• FIG. 15E shows a representative example of only limited attribute information. for every stream, and it is obvious that various attribute information may be used for individual stream categories .

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• Engineering & Computer Science (AREA)
• Multimedia (AREA)
• Signal Processing For Digital Recording And Reproducing (AREA)
• Management Or Editing Of Information On Record Carriers (AREA)
• Television Signal Processing For Recording (AREA)

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• 2005
  • 2005-08-17 WO PCT/KR2005/002704 patent/WO2006019264A1/en active Application Filing
  • 2005-08-17 KR KR1020077003557A patent/KR20070052755A/ko not_active Application Discontinuation
  • 2005-08-17 EP EP07107743A patent/EP1821310A3/de not_active Withdrawn
  • 2005-08-17 EP EP05776016A patent/EP1779381A1/de not_active Withdrawn

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