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 20030235404A1
• Filed: 06/11/2003
• Published: 12/25/2003
• Est. Priority Date: 06/24/2002
• Status: Active Grant

• Current Assignee: Genaera Corporation, LG Electronics, Inc. (LG Corporation)
• Original Assignee: Genaera Corporation
• Inventors: Um, Soung Hyun, Park, Sung Wan, Yoo, Jea Yong, Kim, Byung Jin, Seo, Kang Soo, Hyun, Eun Sil
• Granted Patent: US 7,783,159 B2
• Time in Patent Office: Days
• US Class Current: 386/240
• 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 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• 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: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 21/4325 by playing back content from the storage medium reproduction of recorded television signals H04N5/76; reproduction of recorded television signals H04N9/79
• CPC Class Codes: H04N 21/4825 using a list of items to be played back in a given order, e.g. playlists
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8063 using time division multiplex of the PCM audio and PCM video signals
• 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

The recording medium includes at least one data area storing more than one clip of video data for at least one segment of a title, and each clip of video data is associated with a different reproduction path of the segment.

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 more than one clip of video data for at least one segment of a title, each clip of video data associated with a different reproduction path of the segment.

2. The recording medium of claim 1, wherein each reproduction path is a different camera angle for the segment.

3. The recording medium of claim 1, 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 the 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

the video data are recorded as video data packets and 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.

6. The recording medium of claim 1, 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.

7. The recording medium of claim 6, wherein

the video data are recorded as video data packets and 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.

8. The recording medium of claim 1, wherein

the video data are recorded as video data packets and at least a portion of the video data packets associated with different reproduction paths for the segment are interleaved.

9. The recording medium of claim 8, wherein

the video data packets associated with each reproduction path for the segment are recorded as one group, and the groups are interleaved.

10. The recording medium of claim 8, wherein

the video data packets associated with each reproduction path for the segment are recorded as one or mores groups, at least one reproduction path having more than one group, and the groups are interleaved.

11. The recording medium of claim 10, wherein each group of video data packets represents at least an intra-coded picture.

12. The recording medium of claim 11, wherein a first video data packet in each group is a start of an intra-coded picture.

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

a path management area storing path management information, the path management information identifying clips of video data associated with each reproduction path of at least the segment.

14. 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 packets for at least one segment of a title, the video data packets being associated with different reproduction paths for the segment and the video data packets associated with each reproduction path for the segment being recorded as one group, and the groups being interleaved.

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

recording more than one clip of video data for at least one segment of a title in at least one data area, each clip of video data associated with a different reproduction path of the segment.

16. 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 at least one clip of video data for at least one segment of a title from at least one data area, the data area including more than one clip of video data and each clip associated with a different reproduction path of the segment.

17. 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 more than one clip of video data for at least one segment of a title in at least one data area, each clip of video data associated with a different reproduction path of the segment.

18. 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 at least one clip of video data for at least one segment of a title from at least one data area, the data area including more than one clip of video data and each clip associated with a different reproduction path of the segment.