Recording medium having data structure for managing reproduction of interleaved multiple reproduction path video data recorded thereon and recording and reproducing methods and apparatuses

• US 7,783,160 B2
• Filed: 08/19/2003
• Issued: 08/24/2010
• Est. Priority Date: 11/20/2002
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Um, Soung Hyun, Kim, Byung Jin, Seo, Kang Soo
• Primary Examiner(s): Tran; Thai
• Assistant Examiner(s): CHIO, TAT CHI
• Application Number:
  US10/642,635
• Publication Number:
  US 20040096196A1
• Time in Patent Office: 2,562 Days
• Field of Search: 386/96, 386/125, 386/83, 386/46, 386/95, 386/126
• US Class Current: 386/241
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/213 Read-only discs
• CPC Class Codes: G11B 2220/216 Rewritable discs
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8227 the additional signal being at least another television signal

Abstract

The recording medium has a data structure for managing reproduction of at least multiple reproduction path video data recorded on the recording medium. The recording medium includes a data area storing at least a portion of the multiple reproduction path video data. The multiple reproduction path video data is divided into one or more interleaving units, and each interleaving unit is associated with one of the reproduction paths. Each interleaving unit starts and ends with a reproduction path change point, and the interleaving units associated with different reproduction paths are interleaved in the data area.

Claims

1. An optical disk storing a data structure for managing reproduction of at least video data having multiple reproduction paths by a reproduction device, comprising:

a data area for storing stream files, the stream files including at least a portion of the video data having multiple reproduction paths, the video data having multiple reproduction paths being divided into one or more interleaving units, each interleaving unit associated with one of the reproduction paths, the interleaving units associated with different reproduction paths being interleaved in the data area, and the video data in each interleaving unit including one or more entry points;

a playlist area for storing playlist files, the playlist file including at least one playitem, the playitem identifying a playing interval in at least one clip of the video data, the playitem indicating at least one clip information file for an associated reproduction path used by the corresponding playitem; and

a clip information area for storing clip information files, the clip information files for managing reproduction of the video data having multiple reproduction paths by the reproduction device, the clip information file including an entry point map associated with corresponding one reproduction path of the multiple reproduction paths, the entry point map mapping a presentation time stamp to an address for a corresponding entry point of the video data, each entry point map associated with a corresponding stream file and identifying the entry points in the video data for the associated reproduction path, the entry point map including path change information for identifying entry points at which enter to an associated reproduction path from another reproduction path is permitted and exit from the associated reproduction path to another reproduction path is permitted.

2. The optical disk of claim 1, wherein the video data having multiple reproduction paths is included in a plurality of stream files, each stream file including video data associated with one of the multiple reproduction paths, and each stream file including one or more of the interleaving units.

3. The optical disk of claim 1, wherein each interleaving unit in at least one stream file includes a same number of entry points.

4. The optical disk of claim 1, wherein at least two interleaving units in at least one stream file have a different number of entry points.

5. The optical disk of claim 1, wherein each entry point map indicates which of the identified entry points is a last entry point in an interleaving unit.

6. The optical disk of claim 1, wherein each entry point map indicates which of the identified entry points is a first entry point in an interleaving unit.

7. The optical disk of claim 1, wherein the entry point maps are aligned in time.

8. The optical disk of claim 2, wherein at least one interleaving unit starting and ending with a reproduction path change point.

9. An optical disk storing a data structure for managing reproduction of at least video data having multiple reproduction paths by a reproduction device, comprising:

a data area for storing a plurality of stream files, each stream file including video data associated with one of the multiple reproduction paths, each stream file including entry points of video data, the entry points in each stream file being grouped into one or more interleaving units, and the plurality of stream files being interleaved in the data area on a interleaving unit basis, each interleaving unit including one or more entry points;

a playlist area for storing playlist files, the playlist file including at least one playitem, the playitem identifying a playing interval in a clip of the video data, the playitem indicating at least one clip information file for an associated reproduction path used by the corresponding playitem; and

a clip information area for storing clip information files, the clip information files for managing reproduction of the video data having multiple reproduction paths by the reproduction device, the clip information file including an entry point map associated with corresponding one reproduction path of the multiple reproduction paths, the entry point map mapping a presentation time stamp to an address for a corresponding entry point of the video data, each entry point map associated with a corresponding stream file and identifying the entry points in the video data for the associated reproduction path, the entry point map including path change information for identifying entry points at which enter to a reproduction path from another reproduction path is permitted and exit from the associated reproduction path to another reproduction path is permitted.

11. The optical disk of claim 9, wherein at least two interleaving units in at least one stream file have a different number of entry points.

10. The optical disk of clam 9, wherein each interleaving unit in at least one stream file includes a same number of entry points.

12. An optical disk storing a data structure for managing reproduction of at least video data having multiple reproduction paths by a reproduction device, comprising:

a data area for storing stream files, the stream files including at least a portion of the video data having multiple reproduction paths, the video data having multiple reproduction paths being divided into one or more interleaving units, each interleaving unit associated with one of the reproduction paths, each interleaving unit being formed of one or more entry points, and the interleaving units associated with different reproduction paths being interleaved in the data area;

a playlist area for storing playlist files, the playlist file including at least one playitem, the playitem identifying a playing interval in a clip of the video data, the playitem indicating at least one clip information file for an associated reproduction path used by the corresponding playitem; and

a clip information area storing clip information files, the clip information files for managing reproduction of the video data having multiple reproduction paths by the reproduction device, the clip information file including an entry point map associated with corresponding one reproduction path of the multiple reproduction paths, the entry point map mapping a presentation time stamp to an address for a corresponding entry point of the video data, each entry point map associated with a corresponding stream file and identifying the entry points in the video data for the associated reproduction path, the entry point map including path change information for identifying entry points at which enter to a reproduction path from another reproduction path is permitted and exit from the associated reproduction path to another reproduction path is permitted.

13. The optical disk of claim 12, wherein the number of entry points is fixed for at least interleaving units associated with a same reproduction path.

14. The optical disk of claim 12, wherein the number of entry points varies for at least interleaving units associated with a same reproduction path.

15. A method of recording a data structure for managing reproduction of at least video data having multiple reproduction paths on a recording medium, comprising:

recording playlist files in a playlist area of the recording medium, the playlist file including at least one playitem, the playitem identifying a playing interval in a clip of the video data, the playitem indicating at least one clip information file for an associated reproduction path used by the corresponding playitem;

recording the clip information files in a clip information area of the recording medium, the clip information files for managing reproduction of the video data having multiple reproduction paths, the clip information file including an entry point map associated with corresponding one reproduction path of the multiple reproduction paths, the entry point map mapping a presentation time stamp to an address for a corresponding entry point of the video data, each entry point map associated with a corresponding stream file and identifying the entry points in the video data for the associated reproduction path, the entry point map including path change information for identifying entry points at which enter to a reproduction path from another reproduction path is permitted and exit from the associated reproduction path to another reproduction path is permitted; and

recording stream files in a data area of the recording medium, the stream files including at least a portion of the video data having multiple reproduction paths, the video data having multiple reproduction paths being divided into one or more interleaving units, each interleaving unit associated with one of the reproduction paths, and the interleaving units associated with different reproduction paths being interleaved in the data area, and the video data in each interleaving unit including one or more entry points.

16. The method of claim 15, wherein the video data having multiple reproduction paths is included in a plurality of stream files, each stream file including video data associated with one of the multiple reproduction paths, and each stream file including one or more of the interleaving units.

17. The method of claim 15, wherein at least one interleaving unit starting and ending with a reproduction path change point.

18. A method of reproducing a data structure for managing reproduction of at least video data having multiple reproduction paths recorded on a recording medium, comprising:

reproducing at least one playlist files from a playlist area of the recording medium, the playlist file including at least one playitem, the playitem identifying a playing interval in a clip of the video data, the playitem indicating at least one clip information file for an associated reproduction path used by the corresponding playitem;

reproducing the clip information files from a clip information area of the recording medium, the clip information files for managing reproduction of the video data having multiple reproduction paths, the clip information file including an entry point map associated with corresponding one reproduction path of the multiple reproduction paths, the entry point map mapping a presentation time stamp to an address for a corresponding entry point of the video data, each entry point map associated with a corresponding stream file and identifying the entry points in the video data for the associated reproduction path, the entry point map including path change information for identifying entry points at which enter to a reproduction path from another reproduction path is permitted and exit from the associated reproduction path to another reproduction path is permitted; and

reproducing stream files from a data area of the recording medium, the stream files including at least a portion of the video data having multiple reproduction paths, the video data having multiple reproduction paths being divided into one or more interleaving units, each interleaving unit associated with one of the reproduction paths, and the interleaving units associated with different reproduction paths being interleaved in the data area, and the video data in each interleaving unit including one or more entry points.

19. The method of claim 18, wherein the video data having multiple reproduction paths is included in a plurality of stream files, each stream file including video data associated with one of the multiple reproduction paths, and each stream file including one or more of the interleaving units.

20. An apparatus for recording a data structure for managing reproduction of at least video data having multiple reproduction paths on a recording medium, comprising:

an optical pickup configured to record data on the recording medium; and

a controller, operably coupled to the optical pickup, configured to record playlist files in a playlist area of the recording medium, the playlist file including at least one playitem, the playitem identifying a playing interval in a clip of the video data, the playitem indicating at least one clip information file for an associated reproduction path used by the corresponding playitem;

the controller configured to control the optical pickup to record clip information files in a clip information area of the recording medium, the clip information files for managing reproduction of video data having the multiple reproduction paths, the clip information file including an entry point map associated with a corresponding one reproduction path of the multiple reproduction paths, the entry point map mapping a presentation time stamp to an address for a corresponding entry point of the video data, each entry point map associated with a corresponding stream file and identifying the entry points in the video data for the associated reproduction path, the entry point map including path change information for identifying entry points at which enter to a reproduction path from another reproduction path is permitted and exit from the associated reproduction path to another reproduction path is permitted, and

the controller configured to control the optical pickup to record stream files in a data area of the recording medium, the stream files including at least a portion of the video data having multiple reproduction paths, the video data having multiple reproduction paths being divided into one or more interleaving units, each interleaving unit associated with one of the reproduction paths, the interleaving units associated with different reproduction paths being interleaved in the data area, and the video data in each interleaving unit including one ore more entry points.

21. The apparatus of claim 20, wherein each interleaving unit in at least one stream file includes a same number of entry points.

22. The apparatus of claim 20, wherein at least two interleaving units in at least one stream file have a different number of entry points.

23. The apparatus of claim 20, further comprising:

an encoder configured to encode the video data having multiple reproduction paths.

24. The apparatus of claim 20, further comprising:

a source packetizer configured to packetize the video data.

25. An apparatus for reproducing a data structure for managing reproduction of at least video data having multiple reproduction paths recorded on a recording medium, comprising:

an optical pickup configured to reproduce data recorded on the recording medium;

a controller, operably coupled to the optical pickup, configured to control the optical pickup to reproduce at least one playlist files in a playlist area of the recording medium, the playlist file including at least one playitem, the playitem identifying a playing interval in a clip of the video data, the playitem indicating at least one clip information file for an associated reproduction path used by the corresponding playitem;

the controller configured to control the optical pickup to reproduce clip information files from a clip information area of the recording medium, the clip information files for managing reproduction of the video data having multiple reproduction paths, the clip information file including an entry point map associated with corresponding one reproduction path of the multiple reproduction paths, the entry point map mapping a presentation time stamp to an address for a corresponding entry point of the video data, each entry point map associated with a corresponding stream file and identifying the entry points in the video data for the associated reproduction path, the entry point map including path change information for identifying entry points at which enter to a reproduction path from another reproduction path is permitted and exit from the associated reproduction path to another reproduction path is permitted; and

the controller configured to control the optical pickup to reproduce stream files from a data area of the recording medium, the stream files including at least a portion of the video data having multiple reproduction paths, the video data having multiple reproduction paths being divided into one or more interleaving units, each interleaving unit associated with one of the reproduction paths, the interleaving units associated with different reproduction paths being interleaved in the data area, and the video data in each interleaving unit including one or more entry points.

26. The apparatus of claim 25, wherein each interleaving unit in at least one stream file includes a same number of entry points.

27. The apparatus of claim 25, wherein at least two interleaving units in at least one stream file have a different number of entry points.

28. The apparatus of claim 25, further comprising:

a source de-packetizer configured to de-packetize a packet of the video data.