Source: http://www.google.fr/patents/US7912338?hl=fr
Timestamp: 2013-06-19 01:35:11
Document Index: 493221366

Matched Legal Cases: ['application No. 2005126860', 'application No. 2005126865', 'Application No. 2008', 'Application No. 10', 'application No. 2003228113', 'application No. 2003240036', 'application No. 2003241203', 'application No. 2003241205', 'application No. 200480009338', 'Application No. 200380100261', 'Application No. 2004', 'Application No. 2004', 'Application No. 2004', 'application No. 2004', 'application No. 2004', 'application No. 2004', 'application No. 2004', 'application No. 2004', 'application No. 2006', 'application No. 2006', 'application No. 2006', 'application No. 04708081', 'application No. 03730899', 'application No. 03730901', 'application No. 03772918', 'application No. 03772919']

Brevet US7912338 - Recording medium having data structure for managing random/shuffle ... - Google�BrevetsRecherche Images Maps Play YouTube Actualit�s Gmail Drive Plus » Recherche avanc�e dans les brevets | Historique Web | Connexion Recherche avanc�e dans les brevets BrevetsA recording medium having data structures for managing random/shuffle reproduction of video data recorded thereon is disclosed. The recording medium in accordance with the present invention comprises at least one piece of title management information, a playlist directory area storing at least one playlist...http://www.google.fr/patents/US7912338?utm_source=gb-gplus-shareBrevet US7912338 - Recording medium having data structure for managing random/shuffle reproduction of video data recorded thereon and recording and reproducing methods and apparatuses Num�ro de publicationUS7912338 B2Type de publicationOctroi Num�ro de demande10/787,160 Date de publication22 mars 2011 Date de d�p�t27 f�vr. 2004 Date de priorit�28 f�vr. 2003Autre r�f�rence de publicationCN1777931A, CN100397882C, EP1604356A1, EP1604356A4, US20040170388, WO2004077417A1 Num�ro de publication10787160, 787160, US 7912338 B2, US 7912338B2, US-B2-7912338, US7912338 B2, US7912338B2 InventeursKang Soo Seo, Byung Jin Kim, Mi Hyun Kim Cessionnaire d'origineLg Electronics Inc.Citations de brevets (110), Citations hors brevets (53), R�f�renc� par (1), Classifications (26) Liens externes: USPTO, Cession USPTO, EspacenetRecording medium having data structure for managing random/shuffle reproduction of video data recorded thereon and recording and reproducing methods and apparatusesUS 7912338 B2 R�sum� A recording medium having data structures for managing random/shuffle reproduction of video data recorded thereon is disclosed. The recording medium in accordance with the present invention comprises at least one piece of title management information, a playlist directory area storing at least one playlist including at least one playitem, and a stream directory area storing at least one clip of video data associated with the playlist. The title management information includes at least one segment that is associated with at least one playlist in the playlist directory area, and each playitem in the playlist is a unit to be randomized or shuffled during random/shuffle reproduction mode.
1. A recording medium having a data structure for managing random/shuffle reproduction of video data, the recording medium comprising:
a stream area storing at least one stream file including the video data;
a playlist area storing at least one playlist file including a plurality of playitems, a playitem representing a playing interval of a clip of the video data and indicating a presentation start time and a presentation end time of the playing interval; and
a management area storing at least one title management information file including at least one segment, the segment including a command executing the playlist file, the title management information file being separate and having a different file extension from the playlist file,
wherein the playing interval represented by the playitem is a unit to be randomized or shuffled during random/shuffle reproduction.
2. The recording medium of claim 1, wherein a title managed by the title management information file is a logical unit of the video data that is regarded as a reproduction unit by users.
3. The recording medium of claim 1, wherein the segment is assigned to a reproduction path of the video data.
4. The recording medium of claim 1, wherein the playitem is associated with a whole clip or a portion of clip based on clip information stored in a clip information area of the recording medium.
5. A method for recording a data structure for managing random/shuffle reproduction of video data on a recording medium, the method comprising:
recording with a recording device at least one stream file including the video data in the recording medium;
recording at least one playlist file in the recording medium, the playlist file including a plurality of playitems, a playitem representing a playing interval of a clip of the video data and indicating a presentation start time and presentation end time of the playing interval; and
recording a title management information file in the recording medium, the title management information being separate and having a different file extension from the playlist file, the title management information file including at least one segment, the segment including a command executing the playlist file,
6. A method for reproducing video data recorded on a recording medium having a data structure for managing random/shuffle reproduction of the video data thereon, the method comprising:
reproducing with a reproducing device at least one title management information file including at least one segment from the recording medium, the title management information file including at least one segment, the segment including a command executing a playlist file;
reproducing the playlist file executed by the segment from the recording medium, the playlist file being separate and having a different file extension from the title management information file, the playlist file including a plurality of playitems, a playitem representing a playing interval of a clip of the video data and indicating a presentation start time and a presentation end time of the playing interval; and
reproducing a stream file including the video data from the recording medium;
wherein the playing interval represented by the playitem is a unit to be randomized or shuffled during random shuffle reproduction.
7. An apparatus for recording a data structure for managing random/shuffle reproduction of video data on a recording medium, the apparatus comprising:
a recording device configured to record data in the recording medium; and
a controller, operably coupled to the recording device to,
record a stream file including the video data on the recording medium,
record at least one playlist file in the recording medium, the playlist file including a plurality of playitems, a playitem representing a playing interval of a clip of the video data and indicating a presentation start time and a presentation end time of the playing interval, the playitems in the playlist being a unit to be randomized or shuffled during random/shuffle reproduction, and
record a title management information file in the recording medium, the title management information file being separate and having different file extension from the playlist file, the title management information file including at least one segment, the segment including a command executing a playlist file.
8. An apparatus for reproducing video data recorded on a recording medium having a data structure for managing random/shuffle reproduction of the video data thereon, the apparatus comprising:
a reproducing device configured to reproduce data from the recording medium; and
a controller operably coupled to the reproducing device to,
reproduce a title management information file including at least one segment, the segment including a command executing a playlist file, from the recording medium,
reproduce a playlist file executed by the segment from the recording medium, the playlist file being separate and having a different file extension from the title management information file, the playlist file including a plurality of playitems, a playitem representing a playing interval of a clip of the video data and indicating a presentation start time and a presentation end time of the playing interval, and
reproduce a stream file including the video data from the recording medium,
wherein the playing interval represented by the playitem is a unit to be randomized or shuffled during the random/shuffle reproduction.
9. The method of claim 5, wherein a title managed by the title management information file is a logical unit of the video data managed by the title management information file as a reproduction unit.
10. The method of claim 5, further comprising associating the playitem with a whole clip or a portion of clip based on clip information stored in the recording medium.
11. The apparatus of claim 6, wherein a title managed by the title management information file is a logical unit of video data that is regarded as a reproduction unit by users.
12. The apparatus of claim 6, further comprising associating the playitem with a whole clip or a portion of clip based on clip information stored in the recording medium.
13. The apparatus of claim 7, wherein a title managed by the title management information file is a logical unit of video data that is regarded as a reproduction unit by users.
14. The apparatus of claim 7, wherein the controller controls the reproducing device to reproduce the playitem associated with a whole clip or a portion of clip based on clip information stored in the recording medium.
15. The apparatus of claim 8, wherein a title managed by the title management information file is a logical unit of video data that is regarded as a reproduction unit by users.
16. The apparatus of claim 8, wherein the controller controls the reproducing device to reproduce the playitem associated with a whole clip or a portion of clip based on clip information stored in the recording medium.
17. The apparatus of claim 7, further comprising a source packetizer configured to packetize the video data.
18. The apparatus of claim 8, further comprising a source depacketizer configured to depacketize a packet of the video data.
1. TECHNICAL FIELD The present invention relates to a recording medium having a data structure for managing reproduction of at least video data recorded thereon as well as methods and apparatuses for reproduction and recording.
2. BACKGROUND ART The standardization of new high-density read only and rewritable optical disks capable of recording large amounts of high-quality video and audio data has been progressing rapidly and new optical disk related products are expected to be commercially available on the market in the near future. The Blu-ray Disc Rewritable (BD-RW) is one example of these new optical disks.
3. DISCLOSURE OF INVENTION It is an object of the present invention to provide a recording medium having a data structure for managing reproduction of video data recorded thereon, and methods and apparatuses for recording and reproducing video data on such a recording medium.
It is another object of the present invention to provide a recording medium having data structure for enabling random/shuffle reproduction of video data recorded thereon in units of playlists or designated intervals of playitems, and methods and apparatuses for recording and reproducing video data on such a recording medium.
A data structure of a recording medium for managing random/shuffle reproduction of video data recorded thereon in accordance with one embodiment of the present invention comprises title management information for at least one piece of title management information, a playlist directory area storing at least one playlist including at least one playitem, and a stream directory area storing at least one clip of video data associated with the playlist. The title management information includes at least one segment that is associated with at least one playlist in the playlist directory area, and each playitem in the playlist is a unit to be randomized or shuffled during random/shuffle reproduction mode.
4. BRIEF DESCRIPTION OF DRAWINGS The above features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 4 illustrates an example of a data structure for managing an A/V clip recorded on Blu-ray ROM disk according to the present invention;
FIG. 5 illustrates an example of a file hierarchical structure for embodying the data structure of FIG. 4;
FIG. 6 illustrates a schematic diagram of an embodiment of an optical disk recording and reproduction apparatus of the present invention; and
FIGS. 7 to 10 illustrate embodiments of data structures for enabling random/shuffle reproduction of an A/V clip according to the present invention.
5. MODES FOR CARRYING OUT THE INVENTION In order that the invention may be fully understood, preferred embodiments thereof will now be described with reference to the accompanying drawings.
A high-density optical disk, for example, a Blu-Ray ROM (BD-ROM) in accordance with the invention may have a file or data structure for managing reproduction of video and audio data as shown in FIG. 2. Many aspects of the data structure according to the present invention shown in FIG. 2 are similar to that of the BD-RE standard discussed with respect to FIG. 1. As such these aspects will not be described in great detail.
As shown in FIG. 2, the root directory contains at least one BD-ROM directory. The BD-ROM directory includes a general information file info.dvp, menu files menu.tidx, menu.tdt1 among others, a TITLE directory in which title management files (*.vts) are stored, a PLAYLIST directory in which playlist files (e.g., real (*.rpls) and virtual (*.vpls)) are stored, a CLIPINF directory in which clip information files (*.clpi) are stored, and a STREAM directory in which MPEG2-formatted A/V stream clip files (*.m2ts), corresponding to the clip information files, are stored.
In addition to illustrating the data structure of the recording medium according to an embodiment of the present invention, FIG. 2 represents the areas of the recording medium. For example, the general information file is recorded in one or more general information areas, the playlist directory is recorded in one or more playlist directory areas, each playlist in a playlist directory is recorded in one or more playlist areas of the recording medium, etc. FIG. 3 illustrates an example of a recording medium having the data structure of FIG. 2 stored thereon. As shown, the recording medium includes a file system information area, a data base area and an A/V stream area. The data base area includes a general information file and playlist and title management information area and a clip information area. The general information file and playlist and title management information area have the general information file recorded in a general information file area thereof, the TITLE directory and title management information files (*.vts) recorded therein, and the PLAYLIST directory and playlist files recorded in a playlist information area thereof. The clip information area has the CLIPINFO directory and associated clip information files recorded therein. The A/V stream area has the A/V streams for the various titles recorded therein.
Video and audio data are typically organized as individual titles. A title is a logical unit for a user to recognize one playback group, for example, different movies represented by the video and audio data are organized as different titles. Furthermore, a title may be organized into individual chapters in the same way a book is often organized into chapters.
The multiple reproduction path video data can be reproduced on random/shuffle reproduction mode upon a user's request. As will be described in detail below, the data structures according to the invention may include management information and/or navigation information that enables random/shuffle reproduction mode.
The data structures according to the present invention may be applicable to the manufacturing process of a read-only disk like BD-ROM.
FIG. 4 shows a data structure for managing reproduction of multiple reproduction path video data stream that are recorded on physical data recording area in a read-only disk like BD-ROM as a plurality of A/V clip files.
One title includes at least one title segment, each title segment corresponding to one or more playlists. The playback sequence of a title is determined among various playback sequences by setting a title segment sequence. The title segments may be written by using programs like �Java Script�.
Each title segment is associated with a playlist. A playlist is linked to a whole or portion of a clip file. In this way, a title segment may be associated with a whole or portion of a clip file and thus multiple playback sequences of a title can be generated.
For example, a title may be a core profile for including only movie contents or a full profile including a director's cut additionally. A full profile is formed by adding the playlist corresponding to a director's cut clip to the core profile of the title. Title files of core profile and full profile may be recorded onto distinct directories. For example, the title files of the core profile are recorded in a TITLE directory while those of the full profile are recorded in a FULLTITLE directory. Or, video data of the full profile may be recorded as clip files not in a STREAM directory but in a CONTENTS directory.
A data structure for managing an A/V clip recorded on Blu-ray ROM disk according to the present invention is described below in detail with reference to an embodiment of FIG. 4. To be specific, the first title, title #1 consists of six title segments: one primary path title segment (segment 1), two branch title segments (segments 2, 3), and three multi-path title segments (segments 5, 6, 7).
While segment 2 is associated with playlist 2 that is linked to a whole A/V stream data of clip 2, segment 3 is associated with playlist 3 that is linked to a portion of A/V stream data of clip 2.
Multi-path segments, Segments 5, 6, and 7 are associated with playlists 5, 6, and 7, respectively. Multi-path segments may be created to provide different language versions of the same presentation interval. For example, clip 3 associated with playlist is a Korean language version. Clip 4 (associated with playlist 6) and clip 5 (playlist 7) may be English and Japanese versions, respectively.
Title #2 may be an auxiliary title for title #1 or another separate title. Title #2 consists of seven segments: one primary path title segment (segment 1), three branch title segments (segments 2, 3, 4), and three multi-path title segments (segments 5, 6, 7).
A playlist may be associated with two or more title segments that belong to distinct titles.
Each title segment includes, among other things, reference information on the corresponding playlist, e.g., a filename or the playlist number, a command set including pre-commands and post-commands for the playlist, another command set including commands for playitems belonging to the playlist, and playlist attribute information like still duration.
A title management information file in accordance with the present invention will be described below in detail with reference to FIG. 5. As shown, a title management information file, �01001.vts� includes a title management information �VTSI� that, among other things, includes a user interface application information, UIAppInfTitle and a title segment table, TableofTitleSegment.
The title segment table includes title segments, e.g., title segments 1, 2. Each title segment includes a playlist pointer (PlayList Pointer), playlist pre-commands (PL Pre-CMDs), playlist post-commands (PL Post-CMDs), and playitem commands (PI-CMDs) for the playitems belonging to the playlist.
The playlist pointer points to one of playlist files (*.rpls or *.vpls) in a PLAYLIST subdirectory. As alluded above, the playlist pointer may be filename of the playlist file or a playlist consecutive number.
The playlist pre-command includes initial setting that is needed to execute before reproduction of an A/V clip that is linked to the playlist pointed by the playlist pointer. The playlist post-command includes post operations, for example, reset or reproduction path configuration for the subsequent reproduction that are generally required to execute after reproduction of the A/V clip linked to the playlist pointed by the playlist pointer is finished. One title segment may include a plurality set of playlist pointers, playlist pre-commands, and playlist post-commands.
Each playitem belonging to a playlist is linked to an A/V clip file (*.m2ts) in a STREAM subdirectory based on clip information files (*.clpi) in a CLIPINF subdirectory. The linkage between playitem and clip file is illustrated in detail in FIG. 2. Once a title management file (*.vts) in a TITLE subdirectory is specified, title segments are obtained based on TableOfTitleSegment from the title management information VTSI in the specified title management file.
Each title segment is linked to at least one playlist file in a PLAYLIST subdirectory (indicated by 201 in FIG. 2). Each playitem corresponding to the playlist file is linked to clip information files (*.clpi) in a CLIPINF subdirectory (indicated by 202 in FIG. 2), each of which is associated with A/V clip files (*.mt2s) in a STREAM subdirectory (indicated by 203 in FIG. 2).
FIG. 6 illustrates a schematic diagram of an embodiment of an optical disk recording and reproducing apparatus according to the present invention. As shown, an AV encoder 9 receives and encodes audio and video data. The AV encoder 9 outputs the encoded audio and video data along with coding information and stream attribute information. A multiplexer 8 multiplexes the encoded audio and video data based on the coding information and stream attribute information to create, for example, an MPEG-2 transport stream. A source packetizer 7 packetizes the transport packets from the multiplexer 8 into source packets in accordance with the audio/video format of the optical disk. As shown in FIG. 6, the operations of the AV encoder 9, the multiplexer 8 and the source packetizer 7 are controlled by a controller 10. The controller 10 receives user input on the recording operation, and provides control information to AV encoder 9, multiplexer 8 and the source packetizer 7. For example, the controller 10 instructs the AV encoder 9 on the type of encoding to perform, instructs the multiplexer 8 on the transport stream to create, and instructs the source packetizer 7 on the source packet format. The controller 10 further controls a drive 3 to record the output from the source packetizer 7 on the optical disk.
The controller 10 also creates the navigation and management information for managing reproduction of the audio/video data being recorded on the optical disk. For example, based on information received via the user interface (e.g., instruction set saved on disk, provided over an intranet or internet by a computer system, etc.) the controller 10 controls the drive 3 to record the data structure of FIGS. 2 to 5 and FIG. 5, 6, 7 or 8, that will be explained later, on the optical disk.
In the process of reproduction, the controller 10 controls the drive 3 to reproduce this data structure from the optical disk. Based on the information contained therein, as well as user input received over the user interface (e.g., control buttons on the recording and reproducing apparatus or a remote associated with the apparatus), the controller 10 controls the drive 3 to reproduce the audio/video source packets from the optical disk. For example, the user input may specify a reproduction path or a title to reproduce. This user input may be specified, for example, via a menu based graphical user interface preprogrammed into the controller 10. Using the user input and the reproduction path management information reproduced from the optical disk, the controller 10 controls the reproduction of the specified path.
For example, if a title is chosen, all title segments included in a title management information file for the chosen title are examined by the controller 10, and the user is requested which path to reproduce. If a reproduction path is selected, the controller 10 searches for A/V clip files based on the title segments related with the selected path, and reproduces the A/V clip files sequentially.
The processes of locating and reproducing an A/V clip file recorded on the optical disk in accordance with the present invention are described below in great detail.
After obtaining a title segment, the controller 10 accesses the corresponding playlist by referencing a playlist pointer in the title segment. Prior to reproduction, the initial setting operation is executed by using playlist pre-commands (PL Pre-CMDs) stored in the title segment. Then, the A/V clip file to reproduce is accessed by referencing one or more playitems belonging to the playlist. If the title segment includes playitem commands for the playitem being accessed, operations specified by the playitem commands are executed before reproduction of the corresponding A/V clip file. After reproduction of all of the playitems in the playlist is finished, a new title segment or a path to reproduce sequentially is identified based on the playlist post-commands (PL Post-CMDs) of the playlist. Then, the operations are executed that are required to reproduce the next title segment.
Data structures for enabling random/shuffle reproduction of an A/V clip file recorded on an optical disk according to the present invention are described below in great detail.
An embodiment of a data structure for enabling random/shuffle reproduction in units of playlists is illustrated in FIG. 7 and is described below in detail. In this embodiment, a title is referred to as a random/shuffle title.
Random/shuffle reproduction information of the title 1, R/S_Info is stored as a portion of title management information. In the random/shuffle reproduction information, R/S_Info, random/shuffle reproduction blocks are designated in terms of a group of playlists, e.g., PlayList #n to PlayList #(n+5) or a group of title segments, e.g., Segment #k to Segment #(k+2). The k-th segment, Segment #k is associated with PlayLists #n and #(n+1), Segment #(k+1) is associated with PlayList #(n+2), and Segment #(k+2) is associated with PlayLists #(n+3), #(n+4), #(n+5).
While the disk reproducing apparatus of FIG. 6 reproduces an A/V clip file recorded on the optical disk in accordance with the data structure of FIG. 7, when the controller 10 comes to reproduce a random/shuffle reproduction block or a group of playlists that is designated as a random/shuffle block in R/S_Info, one playlist is selected randomly among the random/shuffle reproduction playlists and is then reproduced. Under random reproduction mode, upon completion of reproduction of the selected playlist, another playlist is chosen randomly again among the playlists. If shuffle reproduction mode is on, a new playlist is selected among the other playlists that have not been reproduced. In this way, a random/shuffle reproduction loop forms based on the random/shuffle reproduction information.
FIG. 7 also shows that the random/shuffle reproduction playlists, PlayList #n to #(n+5) have been reproduced in the shuffle reproduction mode in order of PlayList #n, #(n+1), #(n+4), #(n+5), #(n+2), and #(n+3). In the shuffle mode, after reproduction of all of the random/shuffle reproduction playlists is finished, the first playlist of the next title segment outside the random/shuffle reproduction loop is accessed for the subsequent reproduction. If random mode is on, after the random/shuffle reproduction playlists are reproduced repeatedly the randomly determined number of times, the first playlist of the next title segment outside the random/shuffle reproduction loop is accessed for the subsequent reproduction.
An embodiment of a data structure for enabling random/shuffle reproduction based on random/shuffle block units that are specified and included in the title segment is illustrated in FIG. 8 and is described below in detail. In this embodiment, the title segment having random/shuffle block units is referred to as a random/shuffle title segment.
Random/shuffle reproduction information, R/S_Info may be recorded in a random/shuffle title segment, but may be recorded as a portion of the title management information as in the embodiment of FIG. 7. Information on the random/shuffle block units is included in R/S_Info. The random/shuffle title segment includes the random/shuffle block units, each of which may be defined and specified in units of playlists or playitems.
To be more specific, the random/shuffle title segment, Segment 1 includes three random/shuffle block units, RSU 1, 2, 3. While RSU 1 points to a whole PlayList #1, RSU 2 points to both the third playitem of PlayList #1, PI�13 and the first playitem of PlayList #2, PI�21. RSU 3 points to the two playitems of PlayList #2, PI�22 and PI�23.
While the disk reproducing apparatus of FIG. 6 reproduces an A/V clip file recorded on the optical disk in accordance with the data structure of FIG. 8, when the controller 10 comes to reproduce segment 1, the controller 10 chooses one of the random/shuffle block units of segment 1 randomly. A playlist or playitem pointed by the chosen random/shuffle block unit is identified and an A/V clip file is then reproduced that is linked to the playlist or playitem. FIG. 8 also shows that the random/shuffle block units have been reproduced in order of RSU 1, RSU 3, and RSU 2.
An embodiment of a data structure for enabling random/shuffle reproduction in units of playitems is illustrated in FIG. 9 and is described below in detail. In this embodiment, a title itself is designated as a random/shuffle title.
Random/shuffle reproduction information, R/S_Info may be recorded in a playlist or as a portion of the title management information as in the embodiment of FIG. 7. Random/shuffle reproduction blocks may be a group of playlists (PlayList #i, #(i+1), #(i+2) of FIG. 9) or a group of playitems. In addition, random/shuffle reproduction blocks may be composed of only one playlist.
To be specific, PlayList #i, one of the random/shuffle reproduction playlist points to two playitems, PlayList #(i+1) points to one playitem, and PlayList #(i+2) points to three playitems.
While the disk reproducing apparatus of FIG. 6 reproduces an A/V clip file recorded on the optical disk in accordance with the data structure of FIG. 9, when the controller 10 comes to reproduce a group of random/shuffle playlists, then one playitem is chosen among all of the playitems pointed by playlists in the random/shuffle playlist group and the chosen playitem is then reproduced. For example, one playitem is selected among six playitems in the case of FIG. 9.
After reproduction of the selected playitem is finished, the next playitem is chosen randomly again from the random/shuffle playlist group. If shuffle reproduction mode is on, a new playitem is selected among the other playitems pointed by the random/shuffle playlist group that have not reproduced. In this way, a random/shuffle reproduction loop forms based on the random/shuffle reproduction information.
FIG. 9 also illustrates that, in the shuffle reproduction mode, playitems in the random/shuffle playlist group have been reproduced in order of PlayItem #1, #2 of PlayList #i, PlayItem #2, #3 of PlayList #(i+2), PlayItem #1 of PlayList #(i+1), and PlayItem #1 of PlayList #(i+2). In the shuffle mode, if reproduction of all of the playitems linked to the random/shuffle playlist group is complete, the first playlist of the next title segment outside the random/shuffle reproduction loop is ready to be reproduced.
An embodiment of a data structure for enabling random/shuffle reproduction based on random/shuffle marks is illustrated in FIG. 10 and is described below in detail.
Playlist random/shuffle reproduction information may be recorded in the corresponding playlist or as a portion of the title management information as in the embodiment of FIG. 7. The playlist marked as a random/shuffle reproduction playlist includes information on random/shuffle marks, R/S_Mark. Random/shuffle mark information includes pointer information specifying a particular position on the A/V clip file corresponding to the playlist. In the embodiment of FIG. 10, three random/shuffle marks are stored in PlayList #1, which generate three random/shuffle reproduction intervals. In this embodiment, the start position of the A/V clip should be marked by a random/shuffle mark.
When the disk reproducing apparatus of FIG. 6 reproduces a random/shuffle playlist or PlayList #1 of the title recorded on the optical disk in accordance with the data structure of FIG. 10, the controller 10 chooses one of the random/shuffle marks among the random/shuffle mark group, and reproduces an interval between the chosen mark and the following random/shuffle mark on the corresponding A/V clip. Upon completion of reproduction of the interval, another random/shuffle mark is selected randomly again in the random mode. If shuffle mode is on, a new one is selected among the other random/shuffle marks that have not been chosen. Then, a portion of the A/V clip from the newly chosen mark to the following mark is reproduced. And then, the next random/shuffle mark is chosen again. FIG. 10 also illustrates a playback sequence generated by the selection order of the random/shuffle marks, e.g., R/S_Mark #1, #3, and #2.
The present invention, disclosed with respect to a limited number of embodiments, provides a greater level of flexibility in the random/shuffle reproduction of video data than previously available.
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R�f�renc� par Brevet citant Date de d�p�t Date de publication D�posant TitreUS8094996 *24 avr. 200710 janv. 2012Sony CorporationRecording apparatus, recording method, recording program, image pickup apparatus, image pickup method, and image pickup program* Cit� par l'examinateurClassifications Classification aux �tats-Unis386/241 Classification internationaleG11B7/004, G11B20/10, G11B27/10, G11B27/32, G11B27/034, H04N5/85, G11B27/34, H04N9/804, H04N9/82, H04N5/91 Classification coop�rativeG11B2220/20, G11B2220/213, G11B2220/2541, G11B27/105, G11B27/329, H04N5/85, H04N9/8042, G11B27/34, G11B27/034, H04N9/8205 Classification europ�enneH04N9/804B, G11B27/34, G11B27/034, G11B27/32D2, G11B27/10A1Faire pivoterImage d'origineAccueil Google - Plan du site - T�l�chargements par lot sur l'USPTO - R�gles de confidentialit� - Conditions d'utilisation - � propos de Google�Brevets - Envoyer des commentairesDonn�es fournies par IFI CLAIMS Patent Services©2012 Google