Recording medium having data structure for managing reproduction of multiple reproduction path video data for at least a segment of a title recorded thereon and recording and reproducing methods and apparatuses

• US 20040156621A1
• Filed: 06/17/2003
• Published: 08/12/2004
• Est. Priority Date: 06/24/2002
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Um, Soung Hyun, Park, Sung Wan, Yoo, Jea Yong, Kim, Byung Jin, Seo, Kang Soo, Hyun, Eun Sil
• Granted Patent: US 7,889,968 B2
• Time in Patent Office: Days
• US Class Current: 386/95
• CPC Class Codes: G11B 20/1251 for continuous data, e.g. digitised analog information signals, pulse code modulated [PCM] data
• 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 27/329 on a disc [VTOC]

Abstract

The recording medium includes at least one data area storing video data for at least one segment of a title. The video data is recorded as video data packets and at least a portion of the video data packets associated with different reproduction paths for the segment are multiplexed. In one exemplary embodiment, the multiplexed video data packets are multiplexed on a video data packet basis. In another exemplary embodiment, the video data packets associated with each reproduction path for the segment are recorded as one or mores groups and the groups are multiplexed.

Claims

1. A recording medium having a data structure for managing reproduction of at least multiple reproduction path video data recorded on the recording medium, comprising:

at least one data area storing video data for at least one segment of a title, the video data being recorded as video data packets and at least a portion of the video data packets associated with different reproduction paths for the segment being multiplexed.

2. The recording medium of claim 1, wherein the multiplexed video data packets are multiplexed on a video data packet basis.

3. The recording medium of claim 2, further comprising:

a clip information directory area including at least one entry point map associated with each reproduction path in the segment, each entry point map identifying video data for the associated reproduction path and identifying a presentation time of the identified video data.

4. The recording medium of claim 3, wherein the entry point maps are aligned in time.

5. The recording medium of claim 3, wherein

each video data packet has a packet number that differentiates one video data packet from another;

and

each entry point map identifies video data for the associated reproduction path by identifying the packet numbers of the video data packets.

6. The recording medium of claim 1, wherein the video data packets associated with each reproduction path for the segment are recorded as one or mores groups and the groups are multiplexed.

7. The recording medium of claim 6, wherein each group of video data packets represents at least an intra-coded picture.

8. The recording medium of claim 7, wherein a first video data packet in each group is a start of an intra-coded picture.

9. The recording medium of claim 6, further comprising:

a clip information directory area including at least one entry point map associated with each reproduction path in the segment, each entry point map identifying video data for the associated reproduction path and identifying a presentation time of the identified video data.

10. The recording medium of claim 9, wherein the entry point maps are aligned in time.

11. The recording medium of claim 9, wherein

each video data packet has a packet number that differentiates one video data packet from another;

and

each entry point map identifies video data for the associated reproduction path by identifying the packet numbers of the video data packets.

12. The recording medium of claim 6, further comprising:

a clip information directory area including a single entry point map identifying at least the video data in the segment, the entry point map identifying a presentation time of the identified video data.

13. The recording medium of claim 12, wherein

each video data packet has a packet number that differentiates one video data packet from another;

and

the entry point map identifies the video data in the segment by identifying the packet numbers of the video data packets.

14. The recording medium of claim 1, wherein the different reproduction paths of video data for the segment are different camera angles of video data for the segment.

15. The recording medium of claim 1, further comprising:

a path management area storing path management information, the path management information identifying each reproduction path of at least the segment.

16. A recording medium having a data structure for managing reproduction of at least multiple reproduction path video data recorded on the recording medium, comprising:

at least one data area storing a clip of video data for at least one segment of a title, the clip including video data for more than one reproduction path of the segment.

17. The recording medium of claim 16, wherein the clip includes video data for each of the reproduction paths of the segment.

18. The recording medium of claim 16, wherein the reproduction paths for the segment are different camera angles.

19. The recording medium of claim 16, further comprising:

a clip information directory area including at least one entry point map associated with each reproduction path in the segment, each entry point map identifying video data for the associated reproduction path and identifying a presentation time of the identified video data.

20. The recording medium of claim 16, further comprising:

a clip information directory area including a single entry point map identifying at least the video data in the segment, the entry point map identifying a presentation time of the identified video data.

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

recording video data for at least one segment of a title in at least one data area such that the video data is recorded as video data packets and at least a portion of the video data packets associated with different reproduction paths for the segment is multiplexed.

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

reproducing video data for at least one segment of a title from at least one data area, the video data being recorded as video data packets and at least a portion of the video data packets associated with different reproduction paths for the segment being multiplexed.

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

a driver for driving an optical recording device to record data on the recording medium;

an encoder for encoding at least multiple reproduction path video data; and

a controller for controlling the driver to record the encoded multiple reproduction path video data on the recording medium such that the video data for at least one segment of a title is recorded in at least one data area, the video data being recorded as video data packets and at least a portion of the video data packets associated with different reproduction paths for the segment being multiplexed.

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

a driver for driving an optical reproducing device to reproduce data recorded on the recording medium;

a controller for controlling the driver to reproduce video data for at least one segment of a title from at least one data area, the video data being recorded as video data packets and at least a portion of the video data packets associated with different reproduction paths for the segment being multiplexed.