Recording medium having data structure for managing reproduction of at least video data representing multiple reproduction paths and recording and reproducing methods and apparatuses

• US 7,711,245 B2
• Filed: 03/29/2004
• Issued: 05/04/2010
• Est. Priority Date: 06/21/2001
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yoo, Jea Yong, Kim, Byung Jin, Cho, Jang Hui, Seo, Kang Soo
• Primary Examiner(s): Tran; Thai
• Assistant Examiner(s): Shibru; Helen
• Application Number:
  US10/810,823
• Publication Number:
  US 20040179827A1
• Time in Patent Office: 2,227 Days
• Field of Search: 386/95, 386124-126, 386 36- 37, 386/92
• US Class Current: 386/330
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 2220/2579 HD-DVDs [high definition DVDs]; AODs [advanced optical 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 9/8045 using predictive coding
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal
• CPC Class Codes: H04N 9/8227 the additional signal being at least another television signal

Abstract

In the data structure, a data area of the recording medium stores a transport stream of at least video data. The transport stream is divided into transport packets. Each of the transport packets is associated with one of the multiple reproduction paths, and the transport packets of each reproduction path are interleaved with one another.

Claims

1. A non-transitory recording medium storing an executable data structure for managing reproduction of at least video data having multiple reproduction paths by a reproducing apparatus, comprising:

a data area storing a transport stream of at least video data, the transport stream being divided into transport packets, the transport packets for one of the multiple reproduction paths being grouped into at least one interleaving unit, and the interleaving units of the multiple reproduction paths being interleaved with one another; and

a navigation area storing a first navigation unit, the first navigation unit including one or more second navigation units and controlling a reproduction order of the second navigation units, at least one second navigation unit referencing a plurality of maps, each map identifying transport packets and entry points in the transport packets associated with one of the reproduction paths, and each map providing relation information between presentation time and transport packets of the associated reproduction path, the at least one second navigation unit including at least one identifier identifying the identity of the associated reproduction path, the first navigation unit being separate from each map.

2. The non-transitory recording medium of claim 1, wherein the transport packets associated with each reproduction path are grouped into data blocks, and the interleaving units of each reproduction path are interleaved with one another on a data block by data block basis.

3. The non-transitory recording medium of claim 2, wherein each data block represents at least an intra-coded picture of video data.

4. The non-transitory recording medium of claim 3, wherein each data block represents at least one group of pictures (GOP).

5. The non-transitory recording medium of claim 1, wherein the at least one second navigation unit includes a multiple reproduction path indicator for indicating that the at least one second navigation unit provides navigation information for multiple reproduction paths.

6. The non-transitory recording medium of claim 1, wherein each reproduction path represents one of a digital channel and a sub-channel of an RF channel.

7. The recording medium of claim 1, wherein maps associated with the at least one of the second navigation units are each associated with a different one of the multiple reproduction paths.

8. The recording medium of claim 7, wherein a number of the maps associated with the at least one of the second navigation units is equal to a number of the multiple reproduction paths.

9. The recording medium of claim 8, wherein the at least one of the second navigation units includes a field for indicating whether the at least one of the second navigation units provides navigation information for multiple reproduction paths.

10. A non-transitory recording medium storing an executable data structure for managing reproduction of at least video data having multiple reproduction paths by a reproducing apparatus, comprising:

a data area storing a transport stream of at least video data, the transport stream being divided into transport packets, the transport packets for one of the multiple reproduction paths being grouped into at least one interleaving unit, and the interleaving units of the multiple reproduction paths being interleaved with one another; and

a navigation area including a first navigation unit including one or more second navigation units, the second navigation unit providing navigation information for reproducing each of the multiple reproduction paths, the second navigation unit including a multiple reproduction path flag, the value of the multiple reproduction flag indicating that the second navigation unit provides navigation information for multiple reproduction paths, the second navigation unit including at least one identifier identifying the identify of one path of the multiple reproduction paths, the second navigation unit referencing a plurality of maps, each map identifying transport packets and entry points in the transport packets associated with one of the reproduction paths, and each map providing relation information between presentation time and transport packets of the associated reproduction path, the first navigation unit being separate from each map.

11. The recording medium of claim 10, wherein the interleaving units associated with each reproduction path are grouped into data blocks, and the transport packets of each reproduction path are interleaved with one another on a data block by data block basis.

12. The recording medium of claim 11, wherein each data block represents at least an intra-coded picture of video data.

13. The recording medium of claim 10, wherein each reproduction path represents one of a digital channel and a sub-channel of an RF channel.

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

recording a transport stream of at least video data on the recording medium, the transport stream being divided into transport packets, the transport packets for one of the multiple reproduction paths being grouped into at least one interleaving unit, and the interleaving units of the multiple reproduction paths being interleaved with one another; and

recording a first navigation unit on the recording medium, the first navigation unit including one or more second navigation units and controlling a reproduction order of the second navigation units, at least one of the second navigation units referencing a plurality of maps, each map identifying transport packets and entry points in the transport packets associated with one of the reproduction paths, and each map providing relation information between presentation time and transport packets of the associated reproduction path, the at least one second navigation unit including at least one identifier identifying the identity of the associated reproduction path, the first navigation unit being separate from each map.

15. The method of claim 14, wherein the transport packets associated with each reproduction path are grouped into data blocks, and the interleaving units of each reproduction path are interleaved with one another on a data block by data block basis.

16. The method of claim 15, wherein each data block represents at least an intra-coded picture of video data.

17. The method of claim 14, wherein each reproduction path represents one of a digital channel and a sub-channel of an RF channel.

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

reading a first navigation unit from the recording medium, the first navigation unit including one or more second navigation units and controlling a reproduction order of the second navigation units, at least one of the second navigation units referencing a plurality of maps, each map identifying transport packets and entry points in the transport packets associated with one of the reproduction paths, and each map providing relation information between presentation time and transport packets of the associated reproduction path, the at least one second navigation unit including at least one identifier identifying the identify of the associated reproduction path, the first navigation unit being separate from each map; and

reproducing a transport stream of at least video data from the recording medium, the transport stream being divided into transport packets, the transport packets for one of the multiple reproduction paths being grouped into at least one interleaving unit, and the interleaving units of the multiple reproduction paths being interleaved with one another.

19. The method of claim 18, wherein the transport packets associated with each reproduction path are grouped into data blocks, and the interleaving units of each reproduction path are interleaved with one another on a data block by data block basis.

20. The method of claim 19, wherein each data block represents at least an intra-coded picture of video data.

21. The method of claim 18, wherein each reproduction path represents one of a digital channel and a sub-channel of an RF channel.

22. An apparatus for recording a data structure for managing reproduction duration at least video data having multiple reproduction paths, comprising:

a pickup configured to record data on the recording medium;

a controller, operably coupled to the pickup, configured to control the pickup to record a transport stream of at least video data on the recording medium, the transport stream being divided into transport packets, the transport packets for one of the multiple reproduction paths being grouped into at least one interleaving unit, and the interleaving units of the multiple reproduction paths being interleaved with one another, and the controller configured to control the pickup to record a first navigation unit on the recording medium, the first navigation unit including one or more second navigation units and controlling a reproduction order of the second navigation units, at least one of the second navigation units referencing a plurality of maps, each map identifying transport packets and entry points in the transport packets associated with one of the reproduction paths, and each map providing relation information between presentation time and transport packets of the associated reproduction path, the at least one second navigation unit including at least one identifier identifying the identity of the associated reproduction path, the first navigation unit being separate from each map.

23. The apparatus of claim 22, wherein the controller is configured to control the pickup to record the transport packets associated with each reproduction path being grouped into data blocks, and the interleaving units of each reproduction path are interleaved with one another on a data block by data block basis.

24. The apparatus of claim 23, wherein each data block represents at least an intra-coded picture of video data.

25. The apparatus of claim 22, wherein the controller is configured to control the pickup to record transport packets of each reproduction path representing one of a digital channel and a sub-channel of an RF channel.

26. An apparatus for reproducing a data structure for managing reproduction duration of at least video data having multiple reproduction paths, comprising:

a pickup configured to reproduce data recorded on the recording medium;

a controller, operably coupled to the pickup, configured to control the pickup to reproduce a first navigation unit from the recording medium, the first navigation unit including one or more second navigation units and controlling a reproduction order of the second navigation units, at least one of the second navigation units referencing a plurality of maps, each map identifying transport packets and entry points in the transport packets associated with one of the reproduction paths, and each map providing relation information between presentation time and transport packets of the associated reproduction path, the at least one second navigation unit including at least one identifier identifying the identity of the associated reproduction path, the first navigation unit being separate from each map, and the controller configured to control the pickup to reproduce a transport stream of at least video data from the recording medium according to the reproduced the first navigation unit, the transport stream being divided into transport packets, the transport packets for one of the multiple reproduction paths being grouped into at least one interleaving unit, and the interleaving units of the multiple reproduction paths being interleaved with one another.

27. The apparatus of claim 26, wherein the controller is configured to control the pickup to reproduce the transport packets associated with each reproduction path being grouped into data blocks, and the interleaving units of each reproduction path are interleaved with one another on a data block by data block basis.

28. The apparatus of claim 27, wherein each data block represents at least an intra-coded picture of video data.

29. The apparatus of claim 26, wherein the controller is configured to control the pickup to reproduce transport packets of each reproduction path representing one of a digital channel and a sub-channel of an RF channel.

30. A method of creating a data structure for managing reproduction of at least video data having multiple reproduction paths, comprising:

generating, with a controller, a transport stream of at least video data, the transport stream being divided into transport packets, the transport packets for one of the multiple reproduction paths being grouped into at least one interleaving unit, and the interleaving units of the multiple reproduction paths being interleaved with one another; and

generating, with the controller, a first navigation unit for managing reproduction of the at least video data, the first navigation unit including one or more second navigation units and controlling a reproduction order of the second navigation units, at least one of the second navigation units referencing a plurality of maps, each map identifying transport packets and entry points in the transport packets associated with one of the reproduction paths, and each map providing relation information between presentation time and transport packets of the associated reproduction path, the at least one second navigation unit including at least one identifier identifying the identity of the associated reproduction path, the first navigation unit being separate from each map.