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
  • 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
  • G11B27/322—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 used signal is digitally coded
• • 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
• • 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
  • G11B27/10—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
  • 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

Definitions

• the present invention relates to a recording medium, and more particularly, to a method and apparatus of reproducing data
• Optical discs are widely used as a recording medium for recording mass data.
• a new high density optical recording medium such as a blu-ray disc (hereinafter referred to as "BD")
• BD blu-ray disc
• optical recording and reproducing apparatus adopting the Blu- ray disc (BD) standard is also under development.
• the basic function(s) of recording and/or reproducing the blu-ray disc (BD) as well as additional functions taking into account a combined usage with related peripheral digital apparatuses are/is being considered.
• the optical recording and/or reproducing apparatus must be provided with functions of
• both the data existing outside of the recording medium and the data recorded within the recording medium e.g., blu-ray
• the present invention is directed to a method
• An object of the present invention is to provide a method of configuring a reproduction management file for reproducing both data recorded within the high density recording medium and data stored in a local storage.
• a method of reproducing data recorded on a recording medium includes reproducing main data
• PlayList file which includes a main path and a sub path, the main path containing a Playltem for play-back of the main data, the sub path containing at least one SubPlayltem associated with the Playltem for play-back of the sub data in association with the play-back of the main data, wherein the PlayList file further includes sub path type information which indicates whether the at least one SubPlayltem included in the sub path is synchronized with the
• a method of reproducing data recorded on a recording medium includes reproducing main data recorded on the recording medium and
• the sub path containing at least one SubPlayltem associated with the Playltems for play-back of the sub data in association with the play-back of the main data
• the PlayList file further includes sub path type information which indicates whether the at least one SubPlayltem included in the sub path is synchronized with the Playltems.
• reproducing data recorded on a recording medium includes reproducing AV data and original auxiliary data recorded on the recording medium and additional auxiliary data stored in a local storage using a PlayList file which includes a main path, an original sub path, and at least one additional sub
• a method of reproducing data recorded on a recording medium includes reproducing AV data and original auxiliary data recorded on
• a local storage using a PlayList file which includes a main path and a sub path, the main path containing a plurality of Playltems for play-back of the AV data, the sub path containing at least one SubPlayltem associated with the Playltems for play-back of at least one of the original and additional auxiliary data in association with the play-back
• PlayList file further includes sub path type information which indicates whether the at
• an apparatus of reproducing data recorded on a recording medium includes a pick-up unit for reading main data recorded on the recording medium, a local storage for storing sub data associated with the main data, and a decoder for decoding the main data and the sub data using a PlayList file which includes a main path and a sub path, the main path containing a Playltem for play-
• the sub path containing at least one SubPlayltem associated with the Playltem for play-back of the sub data in association with the play-back of the main data
• the PlayList file further includes sub path type information which indicates whether the at least one SubPlayltem included in the sub path is synchronized with the Playltem.
• an apparatus of reproducing data recorded on a recording medium includes a pick-up unit for reading main data recorded on the recording
• a local storage for storing sub data associated with the main data
• a decoder for decoding the main data and the sub data using a PlayList file which includes a main path and a sub path, the main path containing a plurality of
• Playlterns for play-back of the main data and the sub path containing at least one SubPlayltem associated with the Playltems for play-back of the sub data in association with the play-back of the main data, wherein the PlayList file further includes sub path type information which indicates
• an apparatus of reproducing data recorded on a recording medium includes a pick-up unit for reading AV data and original auxiliary data recorded on the recording medium, the original auxiliary data being associated with the AV data, a local storage for storing additional auxiliary data associated with the AV data,
• a decoder for decoding the AV data and at least one of the original and additional auxiliary data using a PlayList
• the main path containing a plurality of Playltems for play-back of the AV data
• the original sub path containing a SubPlayltem associated with the Playltems for play-back of the original auxiliary data
• each additional sub path containing at least one SubPlayltem associated with Playltems for play-back of the additional auxiliary data
• the PlayList file further includes
• an apparatus of reproducing data recorded on a recording medium includes a pick-up unit for reading AV data and original auxiliary data recorded on the recording medium, the original auxiliary data being associated with the AV data, a local storage for
• a decoder for decoding the AV data and at least one of the original and additional auxiliary data using a PlayList file which includes a main path and a sub path, the main path containing a plurality of Playltems for play-back of the AV
• the sub path containing at least one SubPlayltem associated with the Playltems for play-back of at least one of the original and additional auxiliary data in association with the play-back of the AV data, wherein the PlayList file
• sub path type information which indicates whether the at least one SubPlayltem included in the sub path
• FIG. 1 illustrates a general view of the present invention
• FIG. 2 illustrates an example of an AV stream and an interactive graphic stream according to the present invention
• FIGs. 3A and 3B illustrate a file structure and a structure of a PlayList file as a reproduction management file for reproducing the interactive graphic stream according to the
• FIG. 3C illustrates a recording structure of data recorded on the recording medium according to the present invention
• FIG. 4 illustrates an optical recording and/or reproducing apparatus according to the present invention
• FIGs. 5A and 5B illustrate a method and apparatus for reproducing data recorded within the recording medium and data stored in a local storage according to the present invention
• FIGs. 6A to 7H illustrate examples of a method of creating
• FIG. 8 illustrates an example of an AV stream and a text subtitle stream according to the present invention being provided on a same display screen
• FIGs. 9A and 9B illustrate a file structure and a structure of a PlayList file as a reproduction management file for reproducing the text subtitle stream according to the present invention
• FIGs. 1OA to 1OE illustrate examples of a method of creating (or configuring) a reproduction management file according to the present invention and, most particularly, illustrate
• FIGs. HA to HG illustrate syntaxes of the reproduction
• the reproduction management file refers to a management file for reproducing both data recorded on the recording medium and data stored in a local storage. More specifically, in the blu-ray disc (BD) the reproduction management file is referred to as a "PlayList" . A detailed description of the reproduction management file will be made with reference to FIG. 2A and FIG. 2B along with the description of the overall file structure. In other words, although the "PlayList” refers to the reproduction management file in the present invention, it
• FIG. 1 illustrates a general view of the present invention. More specifically, FIG. 1 illustrates an example of a combined usage of an optical recording and/or reproducing
• the "optical recording and/or reproducing apparatus 10" can be any peripheral apparatuses. Accordingly, the "optical recording and/or reproducing apparatus 10" can be any peripheral apparatuses. Accordingly, the "optical recording and/or reproducing apparatus 10" can be any peripheral apparatuses. Accordingly, the "optical recording and/or reproducing apparatus 10" can be any peripheral apparatuses. Accordingly, the "optical recording and/or reproducing apparatus 10" can be any peripheral apparatuses. Accordingly, the "optical recording and/or reproducing apparatus 10" can be any peripheral apparatuses. Accordingly, the "optical recording and/or reproducing apparatus 10" can be any peripheral apparatuses. Accordingly, the "optical recording and/or reproducing apparatus 10" can be any peripheral apparatuses. Accordingly, the "optical recording and/or reproducing apparatus 10" can be any peripheral apparatuses. Accordingly, the "optical recording and/or reproducing apparatus 10" can be any peripheral apparatuses. Accordingly, the "optical recording and/or reproducing apparatus 10"
• the apparatus can record/reproduce data on/from an optical disc of a specific standard (e.g., blu-ray disc (BD)) only, or the apparatus can only reproduce data from the optical disc.
• a specific standard e.g., blu-ray disc (BD)
• W/K 2005 / 0 O 2 6 9 3 considering the fact that the blu-ray disc (BD) standard is expected to be completed and the association of the blu-ray disc (BD) with other peripheral devices, a Blu-ray disc
• BD-Player which reproduces the data recorded on the blu-ray disc (BD)
• BD-Recorder which records data on the blu-ray disc (BD)
• the "optical recording and/or reproducing apparatus 10" can be referred to as a "driver” which may be equipped in computers.
• optical disc the optical recording and/or reproducing
• apparatus 10 also has the function of receiving an external input signal and processing the received signal and providing the signal to a viewer by transmitting the processed signal onto a screen through a display 20.
• the function of receiving an external input signal and processing the received signal and providing the signal to a viewer by transmitting the processed signal onto a screen through a display 20.
• the most common external input signal is a digital broadcast program (DTV) or the Internet .
• DTV digital broadcast program
• the Internet is a medium that can be easily accessed by the public, users
• the present invention seeks to efficiently reproduce data by combining main data and sub
• main data refers to the signal recorded within the optical disc
• sub data refers to the signal existing in an external source outside of the optical disc
• the main data generally includes audio data, presentation graphic (PG) data, text subtitle, interactive graphic (IG)
• AV stream for a specific film is recorded as the main data on the optical disc.
• IG interactive graphic
• FIG. 2 illustrates an example of the interactive graphic stream and the AV stream being displayed on the same screen.
• the AV stream is displayed on the entire screen.
• the interactive graphic stream is displayed only on a small area (which is also referred to as an "object") within the screen.
• the interactive graphic stream may either be provided from the main data (e.g., a main interactive graphic stream) , which is recorded within the optical disc,
• sub data e.g., an auxiliary interactive graphic stream
• sub data e.g., an auxiliary interactive graphic stream
• BDMV BD directory
• Each BD directory includes an "index.bdmv" and a
• BD directory which represent general files that are used when interacting with one or more users.
• Each BD directory includes four file directories including data to be reproduced, and information required for reproducing the data.
• the file directories included in each BD directory are an auxiliary data directory (AUXDATA) , a stream directory (STREAM) , a clip information directory (CLIPINF) , and a playlist directory (PLAYLIST) .
• AUXDATA auxiliary data directory
• STREAM stream directory
• CLIPINF clip information directory
• PLAYLIST playlist directory
• the "Sound.bdmv” file provides the sound when executing the interactive graphic (IG) stream
• the "aaaaa.otf” file provides font information when reproducing the disc.
• stream directory includes AV stream files and interactive graphic stream files. More specifically, each of the streams may generally be in the form of MPEG2 transport packets.
• STREAM stream directory
• the clip information directory includes clip information files (e.g., 01000.clpi, 02000.clpi, 10001.clpi) being in one-to-one correspondence with each of
• a clip information file (*.clpi) includes property information and timing information of a stream file
• each of the "01000.clpi” , "02000.clpi”, and "10001.clpi" files included in the clip information directory (CLIPINFO) includes the property
• the clip formed of the "01000.clpi” and “01000.m2ts” pair is referred to as an "AV Clip multiplexed KVM 2005 / 0 0 9, 6 9 8 with IG”
• the clip formed of the "02000.dpi” and "02000.m2ts” pair is referred to as an "AV Clip not multiplexed with IG”
• the clip formed of the "10001.clpi" and "10001.m2ts” pair represents a clip formed only of an "interactive graphic stream" without any AV stream. Such clip is referred to as an "IG Clip".
• IG Clip an "interactive graphic stream”
• a "Main clip” refers to a clip associated with the main data that is recorded on the optical disc
• the "Sub clip” refers to a clip associated with the sub data that is downloaded and stored in a local storage.
• PlayList file includes one or more PlayList files (*.mpls) , wherein each PlayList file (*.mpls) includes at least one Playltem which designates playing interval for a specific clip. More specifically, a Playltem includes information designating presentation start and presentation end times (In-Time and Out-Time) for reproduction of a specific clip, which may be designated by clip_Information_File_name within the Playltem. Accordingly, a PlayList file (*.mpls) represents a
• the PlayList also includes a SubPlayltem for reproducing data that is different from the data that is displayed by the Playltem.
• FIG. 3B illustrates a relation (or association) between the PlayList file and the main clip.
• the PlayList file includes a main path having at least one Playltem, and the Playltem includes a reproduction management information for reproducing a specific AV clip.
• the PlayList file includes a sub path including at least one SubPlayltem.
• the SubPlayltem includes a reproduction management information for
• the interactive graphic clip #1 may provide a menu information configured in English.
• the interactive graphic clip #2 may provide a menu
• the interactive graphic stream within the AV clip is reproduced by the Playltem. Accordingly, the interactive graphic stream corresponding to any one of IG clip #1 and IG clip #2 selected by the SubPlayltem, which is not synchronized with the Playltem.
• the AV stream of which reproduction is managed by the Playltem may either be multiplexed with the interactive graphic or not be multiplexed with the interactive graphic. And, this may be selectively applied by the author of the
• FIG. 3C illustrates a general structure of information (or data) associated with the file structure that are recorded on j vi / ⁇ OWO % g Q g
• the disc volume includes a file system information area occupying the inmost portion of the disc volume, a stream area occupying the outmost portion of the disc volume, and a database area occupied between the file
• system information area and the stream data area In the file system information area, system information for controlling the entire data files is recorded. And, main data such as audio/video/graphic data are recorded in the file system information area.
• the general files, PlayList files, and clip information files are recorded in the database area of the disc volume. Therefore, by using the information within the database area, a user is able to select a stream, which the user desires to reproduce, and decide and use the appropriate
• the interactive graphic stream recorded in the optical disc is not multiplexed with the AV stream, then the interactive graphic stream and the AV stream are synchronized. Furthermore, since the interactive graphic stream that is stored in the local storage is stored in a location (or position) different from that of the AV stream, which is ,
• the interactive graphic stream is not multiplexed with the AV stream.
• the user when the user wishes to reproduce the interactive graphic stream that is stored in the local storage along the AV stream, which is recorded in the optical disc, the user should take into account the case when both streams are synchronized and reproduced and, also, the case when both streams are asynchronized and reproduced.
• the present invention seeks to provide a method of creating a preferred PlayList and a method and apparatus of reproducing data by using the newly created PlayList. Accordingly, the PlayList created according to the present invention is referred to as a "composite PlayList" . However, this terminology is used simply to differentiate the newly created PlayList from the already existing PlayList.
• FIG. 4 illustrates an optical recording and/or reproducing apparatus 10 according to the present invention.
• the optical recording and/or reproducing apparatus basically includes a pick-up unit 11 for reproducing the control information including the main data and the file information recorded on the optical disc, a servo 14 controlling the operations of the pick-up unit 11, a signal processor 13 either recovering the playback signal received from the pick-up unit 11 to a desired signal value, or modulating data that is to be recorded to an optical disc recordable signal and transmitting the modulated data, a local storage 15 storing sub data that is downloaded from an external source, and a microcomputer 16 organically controlling the above operations.
• a controller 12 downloads the sub data existing in an external source according to a user command and stores
• controller 12 then creates a composite PlayList for reproducing the main data recorded within the optical disc and the sub data stored in the local storage 15. Thereafter, in accordance with the user command, the controller 12
• a decoder 17 performs a final decoding of an output data (i.e., the main data and/or the sub data) in accordance with the control of the controller 17 and
• an encoder 18 converts an input signal to a specific format signal (e.g., an MPEG2 transport stream) according to the control of the
• controller 12 and provides the converted signal to the signal processor 13.
• the local storage 15 storing the sub data may also be configured, for example, as a hard disc drive (HDD) .
• the newly created composite PlayList may either be stored in
• the optical recording and/or reproducing apparatus separately creates the new composite PlayList.
• the composite PlayList may also be downloaded and stored. In this case, the optical recording and/or reproducing apparatus 10 is not required to create another separate composite PlayList.
• the user desires to store the sub data and the composite
• PlayList in the local storage 15 for further usage it is preferable to put more priority in using the PlayList recorded within the optical disc, which manages only the main data.
• FIG. 5A and FIG. 5B illustrate an apparatus for reproducing data and a method for reproducing data, respectively. More specifically, when an optical disc having
• Aux IG 2, Aux IG 3 exist within the local storage 15 for the
• the controller 12 first selects a reproduction
• controller 12 may
• the controller 12 may either reproduce only the main data recorded in the disc or select and reproduce the composite PlayList including the auxiliary interactive graphic stream within the local storage 15, in
• the controller 12 creates a composite PlayList file and uses the newly created composite PlayList file to reproduce the data (S202) .
• the newly created composite PlayList file is stored in the local storage 15, which can be used again when reproducing the sub data in a later process.
• FIG. 5A
• the composite PlayList that PCVm 2005 / O ⁇ fl ⁇ g g is already stored in the local storage 15 is used, and reproduction of data can be immediately performed without having to create a new composite PlayList.
• the composite PlayList may also be
• FIG. 6A to FIG. 7H The characteristics common to all methods of creating the composite PlayList according to the present invention will now be described.
• the file information for reproducing the main data and the sub data in combination is included in the
• PlayList file the main data is reproduced by at least one Playltem included in the main path and by a SubPlayltem included in the sub path within the PlayList file. And, the sub data is reproduced only by a SubPlayltem
• the interactive graphic stream is given as an example of the sub data that can be applied in FIG. 6A to FIG. 7H. More specifically, the auxiliary interactive graphic stream stored in the local storage may be configured in a language different from that of the main interactive graphic
• the sub data may be configured to have a different attribute.
• attribute may include a graphics characteristic, a menu information represented by the interactive graphic stream, and so on.
• the auxiliary interactive graphic stream is used either for replacing the main interactive graphic stream existing within the optical disc or for appending a new interactive graphic
• the auxiliary interactive graphic stream may be used for additionally supporting the interactive graphics.
• main interactive graphic stream included in the main data is multiplexed with the AV stream, the main interactive graphic stream is reproduced by a Playltem. Conversely, when the main interactive graphic stream is not
• the main interactive graphic stream is identified as a separated IG stream, which is
• both cases of the auxiliary IG stream being synchronized with
• the file information used for reproducing the main data and the sub data is linked within the PlayList file. / 02 t >
• the auxiliary interactive graphic stream is configured of a separate sub path within the composite PlayList .
• at least one SubPlayltem is created within the sub path in order to manage reproduction of the auxiliary interactive graphic stream.
• information associated with the composite PlayList should be pre-stored within the local storage 15. More specifically, the associated information should be prepared in advance by the author of the optical disc, which is then downloaded from an external source along with the sub data. Referring to FIG. 5A, the "Info" stored within the local storage 15 represents
• FIGs. 6A to 6E illustrate examples of creating another sub path for managing reproduction of an "auxiliary interactive graphic stream" , when a "main interactive graphic stream" is configured as a
• FIGs. 6A to 6E are mostly applied to when
• the "auxiliary interactive graphic stream" is not synchronized (i.e., asynchronized) with the AV stream included in the main data.
• the examples shown in FIGs. 6A to 6E are not limited only to when the auxiliary interactive graphic stream is asynchronized with the AV stream included in the main data. Depending upon the applied usage, these examples may also be adopted in the cases when the auxiliary interactive graphic stream is synchronized with
• a sub path is created for each of the auxiliary interactive graphic streams.
• each of sub path #2, sub path #3, and sub path #4 is formed to individually and respectively manage reproduction of auxiliary interactive graphic stream #1, auxiliary interactive graphic stream #2, and auxiliary interactive graphic stream #3, which are stored in the local
• sub path #1 manages reproduction of the main interactive graphic stream recorded in the optical disc. And, the method of managing the main IG stream by using sub path #1 is identical to that described in FIG. 3B.
• any one of the interactive graphic streams that is designated by sub path #1 ⁇ sub path #4 may
• one of the main interactive graphic stream recorded in the disc and the auxiliary interactive graphic stream stored in the local storage 15 may be selectively
• auxiliary interactive graphic stream #1 for an auxiliary interactive graphic stream, a plurality of auxiliary interactive graphic streams is integrated so as to be managed by a single sub path.
• auxiliary interactive graphic stream #1 for an auxiliary interactive graphic stream, auxiliary
• SubPlayltem #2, SubPlayltem #3, and SubPlayltem #4 are collectively designated by a
• sub path #2 e.g., sub path #2
• each of the auxiliary interactive graphic streams when three auxiliary interactive graphic streams exist within the local storage, as shown in FIG. 5A, each of the auxiliary interactive
• SubPlayltem #2 is designated by SubPlayltem #2, SubPlayltem #3, and SubPlayltem #4.
• SubPlayltems 1 sub path. Therefore, when reproducing the above-described composite PlayList, any one of sub path #1 and sub path #2 is selected to perform reproduction. Then, any one of the SubPlayltems that is designated by the
• selected sub path may be selectively reproduced along with along with the main AV data that is included in the optical disc and designated by the main path.
• a plurality of auxiliary interactive graphic streams is integrated so as to
• auxiliary interactive graphic stream #1 For example, auxiliary interactive graphic stream #1, auxiliary interactive graphic stream #2, and auxiliary interactive graphic stream #3, which
• SubPlayltem #2 has the reproduction managed by a single SubPlayltem (e.g., SubPlayltem #2) .
• SubPlayltem #2 is formed to be included in a single sub path (sub path #2) .
• sub path #1 manages reproduction of the main interactive graphic stream recorded in the optical disc.
• the method of managing the main IG stream by using sub path #1 is identical to that described in FIG. 3B.
• each of the auxiliary interactive graphic streams is respectively designated by SubPlayltem #2, SubPlayltem #3, and SubPlayltem #4.
• the three SubPlayltems are integrated to be designated by a single
• SubPlayltem (e.g., SubPlayltem #2) .
• any one of sub path #1 and sub path #2 is selected to perform reproduction. Then, any one of sub path #1 and sub path #2 is selected to perform reproduction. Then,
• any one of the interactive graphic streams that is designated by the selected sub path may be selectively reproduced along
• FIGs. 6D and 6E illustrate examples of integrating a sub path for managing a ⁇ g ⁇ ⁇
• main interactive graphic stream and a sub path for managing an "auxiliary interactive graphic stream” to a single sub path.
• a plurality of SubPlayltems is configured in a single sub path so as to manage reproduction of main interactive graphic streams and auxiliary interactive graphic streams. More specifically, within the single sub path, SubPlayltem #1 designates a plurality of main interactive graphic streams (main interactive graphic stream #1, main interactive graphic stream #2, main interactive graphic stream #3) , thereby managing reproduction of the main interactive graphic streams (main interactive graphic stream #1, main interactive graphic stream #2, main interactive graphic stream #3) , thereby managing reproduction of the main
• SubPlayltem #2, SubPlayltem #3, SubPlayltem #4 is created for each auxiliary interactive graphic stream stored in the local storage 15, thereby managing reproduction
• each of SubPlayltem #2, SubPlayltem #3, and SubPlayltem #4 is created to individually designate each of auxiliary interactive graphic stream #1, auxiliary interactive graphic stream #2,
• SubPlayltem #1 main interactive graphic streams are configured to be designated by SubPlayltem #1.
• SubPlayltem #1, SubPlayltem #2, SubPlayltem #3, and SubPlayltem #4 are configured in a single sub path.
• a single SubPlayltem is configured in a
• SubPlayltem #1 integrates all of the plurality of main interactive graphic streams (main interactive graphic stream #1, main interactive graphic stream #2, main interactive graphic stream #3) recorded on the optical disc and the plurality of auxiliary interactive graphic streams (auxiliary interactive graphic stream #1, auxiliary interactive graphic stream #2, auxiliary interactive graphic
• FIGs. 7A to 7H illustrate examples of creating a sub path for managing reproduction of an "auxiliary interactive graphic stream", when a "main interactive graphic stream” is multiplexed with an AV stream,
• the sync information should be provided from the SubPlayltem included in the sub path which will be described in detail with reference to FIGs. 7A to 7H.
• FIGs. 7A to 7H are not limited only to when the auxiliary interactive graphic stream is synchronized with the AV stream included in the main data. Depending upon the applied usage, these examples may also be adopted in the cases when the auxiliary interactive graphic stream is asynchronized with the AV stream included in the main data.
• a SubPlayltem is created within the sub path, wherein the SubPlayltem matching
• Playltem may be replaced with the auxiliary interactive graphic stream that is included in a sub clip and designated by each of the corresponding
• SubPlayltems This simplifies the system and facilitates the management of each Playltem. Therefore, when reproducing the optical disc using the above-described composite PlayList, the video/audio (A/V) signal is provided by the main A/V stream recorded within the disc, and the main interactive graphic stream is provided by the auxiliary interactive graphic stream that is stored in the local storage 15. In other words, the main interactive graphic stream recorded within the optical disc is replaced with the auxiliary
• a SubPlayltem is created within the sub path, wherein the SubPlayltem matching by one-to-one correspondence with each Playltem within the main path is created (or configured) individually.
• a matching SubPlayltem may not exist for all of the Playltems.
• Playltem may be replaced with the auxiliary interactive graphic stream that is included in
• the interactive graphic stream is provided by the auxiliary interactive graphic stream stored in the local storage 15.
• the interactive graphic stream is provided by the main interactive graphic stream that is
• the video/audio (A/V) signal is provided by the main AV stream, which is recorded on the optical disc.
• FIG. 7C only illustrates an example for a single Playltem (Playltem #1) . However, it is apparent that this aspect of
• the present invention can be identically applied to other Playltems (Playltem #2, Playltem #3) as well.
• main clip and designated by Playltem may be replaced with the auxiliary interactive graphic stream that is included in the plurality of sub clips and designated by the corresponding plurality of SubPlayltems.
• auxiliary interactive graphic stream that is included in the plurality of sub clips and designated by the corresponding plurality of SubPlayltems.
• the interactive graphic stream is provided by the main interactive graphic stream that is included in the main clip and designated by the Playltem.
• the video/audio (A/V) signal is provided by the main AV stream, which is recorded on the optical disc.
• SubPlayltem within a sub path for an auxiliary interactive graphic stream the SubPlayltem matching by one-to-one correspondence with each Playltem within the main path is created (or configured) individually.
• the SubPlayltem matching by one-to-one correspondence with each Playltem within the main path is created (or configured) individually.
• SubPlayltems that match with a Playltem may exist only in a partial section among the entire reproduction (or presentation) section that is reproduced by the Playltem. More specifically, in FIG. 7A, FIG. 7B, and FIG. 7C, one or more SubPlayltems matches with one entire Playltem section. ⁇ i. ⁇ -
• the SubPlayltem corresponding to one Playltem exists only in a partial section.
• each of the main interactive graphic stream, which is included in the main clip and designated by the Playltem, and the auxiliary interactive graphic stream, which is included in the sub clip and designated by the SubPlayltem is alternately reproduced during the entire reproduction section
• the SubPlayltem can apply the auxiliary audio stream
• the main clip is reproduced by a Playltem (e.g.,
• Playltem #1 the reproduction of the main clip is changed to the reproduction of the sub clip.
• the system needs to be supported so that a seamless presentation can be performed between the interactive graphic streams even at the boundary.
• each of the SubPlayltems is matched with its respective Playltem by different methods. More specifically, in FIG. 7E, the examples of creating the SubPlayltem as shown in FIGs. 7A to
• a SubPlayltem matching with the entire presentation section of the PlayList is created (or configured) individually. More specifically, by designating a SubPlayltem that simultaneously corresponds to all
• Playltems within the PlayList the main interactive graphic streams included in the main clip and designated by each
• Playltem may be replaced with the auxiliary interactive graphic stream included in a single sub clip and designated FCIYE? 2005 / 0 0 , 9 6 9 3
• a SubPlayltem matching with the entire presentation section of the PlayList is created (or configured) individually.
• a presentation section is chronologically defined within the SubPlayltem, which
• the SubPlayltem includes information on a presentation start time (In-time) and a presentation end time (Out-time) of a sub clip of which reproduction is managed.
• the SubPlayltem includes an In-time and an Out-time matching with the In-time and the Out-time reproducing (or presenting) the main path included in the PlayList.
• FIG. 7G a presentation start time (In-time) and a presentation end time (Out-time) of a sub clip of which reproduction is managed.
• SubPlayltem includes a plurality of In-times and out-times. Accordingly, each section defined as an In-time and an Out- time is referred to as a "time slot". For example, FIG. 7G illustrates three time slots "Time slot #1", “Time slot #2”,
• the time slot may be created from a random section. However, the time slot may also be matched with Playltem #1, Playltem #2, and Playltem #3 within the main path.
• part of the entire main data presentation section reproduced (or presented) by the PlayList is replaced with the sub data.
• part of the entire section that is reproduced by the composite PlayList reproduces the main interactive graphic stream, and another part of the entire section reproduces the auxiliary interactive graphic stream. Therefore, since the reproduction section (or presentation section) of the SubPlayltem within the sub path
• the SubPlayltem can apply the auxiliary interactive graphic stream more diversely.
• a boundary between the reproduction (or presentation) of the main clip and the reproduction (or presentation) of the sub clip is created.
• the main clip is changed to the reproduction of the sub clip during the reproduction of the main clip.
• the system needs to be supported so that a seamless presentation can be performed
• FIGs. 7A to 7H illustrate examples of creating a single sub path. It is apparent that the methods described in FIGs. 6A to 6C may be used, when creating a
• main interactive graphic exists as a separated stream that is not multiplexed with the main AV stream, it is preferable to apply any one of the methods described in FIGs . 6A to 6E.
• main interactive graphic is multiplexed with the main AV stream, it is preferable to
• auxiliary interactive graphic when the "auxiliary interactive graphic" is synchronized with the main AV stream, it is preferable to apply any one of the methods described in FIGs. 7A to 7H.
• methods for creating and playing-back or
• the text subtitle stream which is a set of information provided in a text form, is generally used as a superimposed dialogue of movies. Therefore, the text subtitle stream according to the present invention must be provided after being synchronized with the AV stream. This is different from the above-described interactive graphic
• the text subtitle stream which includes the case when the interactive graphic stream is synchronized with the AV stream and the case when the interactive graphic stream is not synchronized (i.e., asynchronized) with the AV stream.
• the text subtitle stream according to the present invention corresponds to the entire presentation section of the PlayList .
• a text subtitle stream is not provided for each Playltem, and the reproduction of the text subtitle stream is managed by a SubPlayltem which is synchronized with the main path. This is different from the
• FIG. 8 illustrates an example of the AV stream and the text subtitle stream being provided on a display screen.
• FIGs. 9A and 9B illustrate a file structure according to the present invention and a structure of a PlayList file as a reproduction management file for reproducing the text subtitle stream. More specifically, in comparison with FIG. 3A, the text subtitle stream shown in FIG. 9A is configured ob a separate Text subtitle clip which is not multiplexed with the AV stream. Furthermore,
• FIG. 9B the reproduction of the Text subtitle clip is managed by a SubPlayltem included in the sub path.
• FIGs. 1OA to 1OE illustrate examples of creating (or configuring) a reproduction management file according to the present invention. Most particularly, FIGs. 1OA to 1OE
• FIG. 1OA to FIG. 1OE illustrate methods of creating a PlayList for reproducing the text subtitle stream. Accordingly, the examples shown in FIG. 1OA to FIG. 1OE have the same structure as each of the examples applied in the interactive graphic stream shown in
• FIG. 6A to FIG. 6E respectively.
• each SubPlayltem provided in the examples shown in FIGs. 1OA to 1OE has a set of sync information for being synchronized
• FIGs. 1OA to 1OE have the structure as the example shown in FIGs. 6A to 6E, the description of the same will be omitted for simplicity.
• FIGs. HA to HG illustrate syntaxes of the composite
• FIG. HA illustrates the PCT/HI 2005 / 00 o (, g g syntax of a header portion of the PlayList file (xxxxx.mpls) .
• An identification information such as an "MPLS" character
• the version of the PlayList file is recorded in a "version_number" field.
• the PlayList file includes an "ApplnfoPlayList () " field, a "PlayList ()” field, and a "PlayListMark() " field.
• the "ApplnfoPlayList ()” field includes information on the reproduction (or playback) method (i.e., PlayList_playback_type) .
• the "PlayList ()” field includes Playltem information and Sub path information, and
• the "PlayListMark()" field includes a mark pointer which is used for special reproduction (or playback) .
• a detailed description of the "PlayList ()" field according to the present invention will now follow.
• FIG. HB illustrates a header syntax of the "PlayList ()" field included in the PlayList file.
• information on the size of the "PlayList ()” field is recorded in a "length” field.
• the PlayList file is recorded in a "number_of_PlayItem" field, 4 /aii -.UUJ $B
• the "PlayltemO” field includes an "STN_table()" field, wherein all of the stream information that can be used in the corresponding Playltem.
• the optical recording and/or reproducing apparatus 10 may select and reproduce a stream information defined within the "STN_table() " field. Therefore, all of the above- described stream information (shown in FIG. 6A to FIG.
• FIG. HC illustrates a header syntax of the "STN_table()" field included in the "PlayltemO” field. More specifically, a size information of the "STN_table() " field is recorded in a "length” field. The number of reproduceable video streams that are associated with the Playltem is recorded in a "number of video stream entries” field, and the number of ? ⁇ ⁇
• reproduceable audio streams that are associated with the Playltem is recorded in a "number_of_audio_stream _entries"
• the number of reproduceable text subtitle streams that are associated with the Playltem is recorded in a "number_of_PG_textST_stream_entries” field. And, finally, the number of reproduceable interactive graphic streams that are associated with the Playltem is recorded in a ⁇ number_of _IG_stream_entries” field.
• the stream information is recorded in accordance with the above-described number information for each corresponding fie.ld. However, each of the stream information respectively recorded to a "stream _entry()" field and a “stream_attributes () " field.
• stream type, main clip information, and sub clip information are recorded in the "stream_entry() " field, and attribute information of each stream is recorded in the "stream _attributes () " field.
• FIG. HD illustrates a syntax of a "stream_entry() " field, which is included in the "STN_table () " field. More specifically, a size information of the "stream_entry() " field is recorded in a "length” field, and a source
• type "1" represents a stream type that is included in the main clip and designated by the Playltem.
• Type "2" represents a stream type that is
• type "3" represents a stream type that is designated by the sub path and stored in the local storage 15.
• FIG. HE illustrates a syntax of a "stream _attributes () " field, which is included in the "STN_table () " field. More specifically, a size information of the "stream _attributes () " field is recorded in a "length” field, and
• stream_coding_type 0x02
• stream_coding_type 0x02
• stream_coding_type 0x80 or 0x81 or 0x82
• the attribute information includes an "audio_j?resentation_type” , wherein information on the number of channels when reproducing (or presenting) the audio stream is recorded, and an "audio__language_code” field, wherein a language information of the audio stream is recorded.
• stream_coding_type 0x90
• the attribute information includes an "IG_language
• FIG. HF illustrates a header syntax of a n SubPath()" field that is included in the "PlayList () " field. More specifically, a size information of the "SubPath ()" field is recorded in a "length” field, and information of a stream type is recorded in a "stream_coding_type” field, and a source information of the corresponding sub path is recorded in a "SubPath_type” field. For example, when SubPath_type "n" represents the sub path recorded within the optical disc,
• SubPath_type "m" represents the sub path stored in the local storage 15.
• SubPath_type “nl” or “ml” may represent the audio stream
• SubPath_type “n2” or “m2” may represent the text subtitle stream
• SubPath_type “n3” or “m3” may represent the interactive graphic stream that is not synchronized with
• SubPath_type “n4" or “m4" may represent the presentation graphic stream
• SubPath_type “n5" or u m5" may represent the interactive graphic stream that is synchronized with the AV stream. Additionally, a flag information indicating whether sub path presentation is to be
• FIG. HG illustrates a syntax of a "SubPlayltem() " field that is included in the "SubPathO” field. More specifically, a size information of the "SubPlayltem()" field is recorded in a "length” field, and a sub clip name that is managed by the corresponding SubPlayltem is recorded in a "Clip_information_file_name” field, and a coding type of the corresponding clip is recorded in a "Clip_codec_identifier” field.
• An STC_id of the designated sub clip is designated in
• a presentation start time (IN_time) and a presentation end time (0UT_time) presented (or reproduced) by the SubPlayltem are recorded in a "SubPlayItem_IN_time” field and a "SubPlayItem_OUT_time” field, respectively.
• the corresponding number information is recorded in a "number_of_clip_entries” field. And, information for each of the corresponding number of clips is recorded in the "Clip_information_file_name” field, the "Clip_codec_identifier” field, and the "ref_to_STC_id” field.
• a "sync _PlayItem_id” field and a “sync_start_PTS__of_PlayItem” field is used. More specifically, Playltem identification information (e.g., any one of Playltem #1, Playltem #2, and Playltem #3) associated with a presentation start time of the SubPlayltem is recorded in the "sync_PlayItem_id" field. Also, among the presentation start time of the designated Playltem, timing information indicating to which time synchronization should be performed is recorded in the

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• Signal Processing For Digital Recording And Reproducing (AREA)
• Television Signal Processing For Recording (AREA)
• Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

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• 2005
  • 2005-08-17 WO PCT/KR2005/002698 patent/WO2006019259A1/en active Application Filing
  • 2005-08-17 KR KR1020077003553A patent/KR20070050440A/ko not_active Application Discontinuation
  • 2005-08-17 EP EP05776011A patent/EP1782424A1/de not_active Withdrawn
  • 2005-08-17 BR BRPI0514432-9A patent/BRPI0514432A/pt not_active IP Right Cessation

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