Recording medium having a data structure for managing various data and recording and reproducing methods and apparatuses

• US 20050196155A1
• Filed: 11/15/2004
• Published: 09/08/2005
• Est. Priority Date: 02/10/2004
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yoo, Jea Yong, Kim, Byung Jin, Seo, Kang Soo
• Application Number:
  US10/986,998
• Publication Number:
  US 20050196155A1
• Time in Patent Office: Days
• US Class Current: 386/201
• 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 27/329 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 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 9/8211 the additional signal being a sound signal H04N9/835 takes precedence
• CPC Class Codes: H04N 9/8227 the additional signal being at least another television signal
• CPC Class Codes: H04N 9/8233 the additional signal being a character code signal

Abstract

In the data structure for managing reproduction of various data streams, a playlist includes at least one playitem and at least one subpath. The playitem includes management information for managing reproduction of main data recorded on the recording medium, and the subpath includes at least one subplayitem. The subplayitem includes management information for managing reproduction of supplemental data recorded on the recording medium, and the subplayitem includes a synchronization data field for providing synchronizing information to synchronize reproduction of the supplemental data with reproduction of the main data. Also, the subpath includes a type indicator that indicates the type of the supplemental data managed by the subpath and signifies whether the synchronizing information is valid.

Claims

1. A recording medium having a data structure for managing various data, comprising:

a recording area storing a playlist, the playlist including at least one playitem and at least one subpath, the playitem including management information for managing reproduction of main data recorded on the recording medium, the subpath including at least one subplayitem, the subplayitem including management information for managing reproduction of supplemental data recorded on the recording medium, the subplayitem including a synchronization data field for providing synchronizing information to synchronize reproduction of the supplemental data with reproduction of the main data, and the subpath including a type indicator that indicates the type of the supplemental data managed by the subpath and signifies whether the synchronizing information is valid.

2. The recording medium of claim 1, wherein the type indicator indicates that the supplemental data type is one of audio for a slide show, an interactive graphic presentation menu, and a text subtitle presentation.

3. The recording medium of claim 2, wherein when the type indicator indicates that the supplemental data type is the audio for a slide show or the interactive graphic presentation menu, the type indicator signifies that the synchronizing information is invalid and that the subpath is not synchronized with the playitem

4. The recording medium of claim 2, wherein when the type indicator indicates that the supplemental data type is the text subtitle presentation, the type indicator signifies that the synchronizing information is valid and that the subpath is synchronized with the playitem.

5. The recording medium of claim 4, wherein the synchronizing information provides a presentation time in the playitem indicating when to start presentation of the subplayitem.

6. The recording medium of claim 5, wherein the subplayitem further includes a synchronizing playitem identifier that identifies the playitem with which the subplayitem is to be synchronized.

7. The recording medium of claim 1, wherein the type indicator indicates that the supplemental data type is a text subtitle presentation and signifies that the synchronizing information is valid.

8. The recording medium of claim 7, wherein the synchronizing information provides a presentation time in the playitem indicating when to start presentation of the subplayitem.

9. The recording medium of claim 8, wherein the subplayitem further includes a synchronizing playitem identifier that identifies the playitem with which the subplayitem is to be synchronized.

10. The recording medium of claim 1, wherein, when valid, the synchronizing information provides a presentation time in the playitem indicating when to start presentation of the subplayitem.

11. The recording medium of claim 10, wherein the subplayitem further includes a synchronizing playitem identifier that identifies the playitem with which the subplayitem is to be synchronized.

12. The recording medium of claim 1, wherein the subplayitem identifies more than one clip information file, each identified clip information file indicates an associated clip of the supplemental data to reproduce from the recording medium, the supplemental data in each clip being associated with at least a portion of the main data recorded on the recording medium, and the subplayitem indicates a single presentation interval for the associated clips.

13. The recording medium of claim 12, wherein the clip information files identified by the subplayitem indicate clips of different language text subtitles.

14. The recording medium of claim 12, wherein each identified clip information file provides an application type indicator indicating an application type of the supplemental data in the associated clips, and the type indicator signifies the application type.

15. The recording medium of claim 12, wherein when the type indicator indicates the supplemental data type is a text subtitle, the type indicator signifies that the application type indicator provided by the identified clip information file indicates the application type of the supplemental data in the associated clips is for text subtitle.

16. A method of reproducing a data structure for managing various data streams from a recording medium, comprising:

reproducing a playlist from the recording medium, the playlist including at least one playitem and at least one subpath, the playitem including management information for managing reproduction of main data recorded on the recording medium, the subpath including at least one subplayitem, the subplayitem including management information for managing reproduction of supplemental data recorded on the recording medium, the subplayitem including a synchronization data field for providing synchronizing information to synchronize reproduction of the supplemental data with reproduction of the main data, and the subpath including a type indicator that indicates the type of the supplemental data managed by the subpath and signifies whether the synchronizing information is valid.

17. A method of recording a data structure for managing various data streams on a recording medium, comprising:

recording a playlist on the recording medium, the playlist including at least one playitem and at least one subpath, the playitem including management information for managing reproduction of main data recorded on the recording medium, the subpath including at least one subplayitem, the subplayitem including management information for managing reproduction of supplemental data recorded on the recording medium, the subplayitem including a synchronization data field for providing synchronizing information to synchronize reproduction of the supplemental data with reproduction of the main data, and the subpath including a type indicator that indicates the type of the supplemental data managed by the subpath and signifies whether the synchronizing information is valid.

18. An apparatus for reproducing a data structure for managing various data streams from 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 a playlist from the recording medium, the playlist including at least one playitem and at least one subpath, the playitem including management information for managing reproduction of main data recorded on the recording medium, the subpath including at least one subplayitem, the subplayitem including management information for managing reproduction of supplemental data recorded on the recording medium, the subplayitem including a synchronization data field for providing synchronizing information to synchronize reproduction of the supplemental data with reproduction of the main data, and the subpath including a type indicator that indicates the type of the supplemental data managed by the subpath and signifies whether the synchronizing information is valid.

19. An apparatus for recording a data structure for managing various data streams on a recording medium, comprising:

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

a controller for controlling the driver to record a playlist on the recording medium, the playlist including at least one playitem and at least one subpath, the playitem including management information for managing reproduction of main data recorded on the recording medium, the subpath including at least one subplayitem, the subplayitem including management information for managing reproduction of supplemental data recorded on the recording medium, the subplayitem including a synchronization data field for providing synchronizing information to synchronize reproduction of the supplemental data with reproduction of the main data, and the subpath including a type indicator that indicates the type of the supplemental data managed by the subpath and signifies whether the synchronizing information is valid.

20. A recording medium having a data structure for managing various data, comprising:

a recording area storing a playlist, the playlist including at least one playitem and at least one subpath, the playitem including management information for managing reproduction of main data recorded on the recording medium, the subpath including at least one subplayitem, the subplayitem including management information for managing reproduction of supplemental data recorded on the recording medium, the subplayitem identifying at least one clip information file, each identified clip information file indicating an associated clip of the supplemental data to reproduce from the recording medium, each identified clip information file provides an application type indicator indicating an application type of the supplemental data in the associated clip, and the subpath including a type indicator that indicates the type of the supplemental data managed by the subpath and signifies the application type.

21. The recording medium of claim 20, wherein when the type indicator indicates the supplemental data type is a text subtitle, the type indicator signifies that the application type indicator provided by the identified clip information file indicates the application type of the supplemental data in the associated clips is for text subtitle.

22. The recording medium of claim 20, wherein the subplayitem identifies more than one clip information file, each identified clip information file indicates an associated clip of supplemental data to reproduce from the recording medium, the supplemental data in each clip being associated with at least a portion of the main data recorded on the recording medium, and the subplayitem indicates a single presentation interval for the associated clips.

23. The recording medium of claim 22, wherein the clip information files named by the subplayitem indicate clips of different language text subtitles.

24. The recording medium of claim 20, wherein the type indicator indicates that the supplemental data type is one of audio for a slide show, an interactive graphic presentation menu, and a text subtitle presentation.

25. A method of reproducing a data structure for managing various data streams from a recording medium, comprising:

reproducing a playlist from the recording medium, the playlist including at least one playitem and at least one subpath, the playitem including management information for managing reproduction of main data recorded on the recording medium, the subpath including at least one subplayitem, the subplayitem including management information for managing reproduction of supplemental data recorded on the recording medium, the subplayitem identifying at least one clip information file, each identified clip information file indicating an associated clip of the supplemental data to reproduce from the recording medium, each identified clip information file provides an application type indicator indicating an application type of the supplemental data in the associated clip, and the subpath including a type indicator that indicates the type of the supplemental data managed by the subpath and signifies the application type.

26. A method of recording a data structure for managing various data streams on a recording medium, comprising:

recording a playlist on the recording medium, the playlist including at least one playitem and at least one subpath, the playitem including management information for managing reproduction of main data recorded on the recording medium, the subpath including at least one subplayitem, the subplayitem including management information for managing reproduction of supplemental data recorded on the recording medium, the subplayitem identifying at least one clip information file, each identified clip information file indicating an associated clip of the supplemental data to reproduce from the recording medium, each identified clip information file provides an application type indicator indicating an application type of the supplemental data in the associated clip, and the subpath including a type indicator that indicates the type of the supplemental data managed by the subpath and signifies the application type.

27. An apparatus for reproducing a data structure for managing various data streams from 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 a playlist from the recording medium, the playlist including at least one playitem and at least one subpath, the playitem including management information for managing reproduction of main data recorded on the recording medium, the subpath including at least one subplayitem, the subplayitem including management information for managing reproduction of supplemental data recorded on the recording medium, the subplayitem identifying at least one clip information file, each identified clip information file indicating an associated clip of the supplemental data to reproduce from the recording medium, each identified clip information file provides an application type indicator indicating an application type of the supplemental data in the associated clip, and the subpath including a type indicator that indicates the type of the supplemental data managed by the subpath and signifies the application type.

28. An apparatus for recording a data structure for managing various data streams on a recording medium, comprising:

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

a controller for controlling the driver to record a playlist on the recording medium, the playlist including at least one playitem and at least one subpath, the playitem including management information for managing reproduction of main data recorded on the recording medium, the subpath including at least one subplayitem, the subplayitem including management information for managing reproduction of supplemental data recorded on the recording medium, the subplayitem identifying at least one clip information file, each identified clip information file indicating an associated clip of the supplemental data to reproduce from the recording medium, each identified clip information file provides an application type indicator indicating an application type of the supplemental data in the associated clip, and the subpath including a type indicator that indicates the type of the supplemental data managed by the subpath and signifies the application type.