Recording medium having data structure for managing reproduction of auxiliary presentation data and recording and reproducing methods and apparatuses

• US 8,041,193 B2
• Filed: 10/08/2004
• Issued: 10/18/2011
• Est. Priority Date: 10/15/2003
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Byung Kin, Yoo, Jea Yong, Seo, Kang Soo
• Primary Examiner(s): Shibru; Helen
• Application Number:
  US10/960,485
• Publication Number:
  US 20050084247A1
• Time in Patent Office: 2,566 Days
• Field of Search: 386/95, 386/46, 386111-112, 386/69, 386/336, 386/326, 386/244, 386246-247
• US Class Current: 386/336
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 2220/2545 CDs
• 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: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8042 involving data reduction
• 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
• CPC Class Codes: H04N 9/8233 the additional signal being a character code signal
• CPC Class Codes: H04N 9/8715 involving the mixing of the reproduced video signal with a non-recorded signal, e.g. a text signal

Abstract

In the data structure for managing reproduction of text subtitle data, a recording area stores at least one subplayitem. The subplayitem identifies more than one clip information file name, and each clip information file named by the subplayitem indicates an associated clip of auxiliary presentation data to reproduce from the recording medium. The auxiliary presentation data in each clip is associated with at least a portion of main presentation data recorded on the recording medium, and the subplayitem indicates a single presentation interval for the associated clips.

Claims

1. An optical disc having a data structure for managing reproduction of text subtitle data, the optical disc comprising:

a navigation area storing at least one subplayitem, the subplayitem identifying at least one clip information file associated with at least one text subtitle data file including the text subtitle data recorded on the optical disc,

the text subtitle data in the text subtitle data file being associated with at least a portion of main presentation data in a main file recorded on the optical disc,

wherein each clip information file identified by the subplayitem is separated from each text subtitle file and has a one to one correspondence with a respective subtitle data file,

wherein the subplayitem specifies a presentation interval for associated text subtitle data and the subplayitem includes fields indicating data coding information and a system time identifier for the associated text subtitle data,

wherein a graphic-subtitle data is multiplexed with the main presentation data in the main file whereas the text subtitle data is included in the text subtitle data file separated from the main file, and either the text subtitle data or the graphic-subtitle data is displayed together with the main presentation data.

2. The optical disc of claim 1, wherein the navigation area stores at least one playitem, the playitem identifying a clip information file associated with the main file recorded on the optical disc.

3. The optical disc of claim 2, wherein the clip information files identified by the subplayitem and the clip information file identified by the playitem are different.

4. The optical disc of claim 2, wherein the navigation area stores at least one playlist, the playlist including the playitem and the subplayitem.

5. The optical disc of claim 4, wherein the playlist indicates a type of subpath with which the subplayitem is associated.

6. The optical disc of claim 5, wherein the type of subpath is a text subtitle presentation path.

7. The optical disc of claim 1, wherein the text subtitle data is stored as transport packets.

8. A method of recording a data structure for managing reproduction of text subtitle data on an optical disc, the method comprising:

recording at least one subplayitem on the optical disc, the subplayitem identifying at least one clip information file associated with at least one text subtitle data file including the text subtitle data recorded on the optical disc the text subtitle data in the text subtitle data file being associated with at least a portion of main presentation data in a main file recorded on the optical disc,

wherein each clip information file identified by the subplayitem is separated from each text subtitle data file and has a one to one correspondence with a respective text subtitle data file,

wherein the subplayitem specifies a presentation interval for associated text subtitle data and the subplayitem includes fields indicating data coding information and a system time identifier for the associated text subtitle data,

wherein a graphic-subtitle data is multiplexed with the main presentation data in the main file whereas the text subtitle data is included in the text subtitle data file separated from the main file, and either the text subtitle data or the graphic subtitle data is displayed together with the main presentation data.

9. A method of reproducing a data structure for managing reproduction of text subtitle data from an optical disc, the method comprising:

reproducing at least one subplayitem from the optical disc, the subplayitem identifying at least one clip information file associated with at least one text subtitle data file including the text subtitle data recorded on the optical disc, the text subtitle data in the text subtitle data file being associated with at least a portion of main presentation data in a main file recorded on the optical disc,

wherein each clip information file identified by the subplayitem is separated from each text subtitle data file and has a one to one correspondence with a respective text subtitle data file,

wherein the subplayitem specifies a presentation interval for associated text subtitle data and the subplayitem includes fields indicating data coding information and a system time identifier for the associated text subtitle data,

wherein a graphic subtitle data is multiplexed with the main presentation data in the main file whereas the text subtitle data is included in the text subtitle data file separated from the main file, and either the text subtitle data or the graphic subtitle data is displayed together with the main presentation data.

10. The method of claim 9, further comprising:

reproducing at least one playitem, the playitem identifying a clip information file associated with the main file recorded on the optical disc.

11. The method of claim 10, wherein the clip information files identified by the subplayitem and the clip information file identified by the playitem are different.

12. The method of claim 10, further comprising:

reproducing at least one playlist, the playlist including the playitem and the subplayitem.

13. The method of claim 12, wherein the playlist indicates a type of subpath with which the subplayitem is associated.

14. An apparatus for reproducing a data structure for managing reproduction of text subtitle data from an optical disc, the apparatus comprising:

a pickup configured to reproduce data recorded on the optical disc; and

a controller, operatively coupled to the pickup, configured to control the pickup to reproduce at least one subplayitem from the optical disc, the subplayitem identifying at least one clip information file associated with at least one text subtitle data file including the text subtitle data recorded on the optical disc, the text subtitle data in the text subtitle data file being associated with at least a portion of main presentation data in a main file recorded on the optical disc,

wherein each clip information file identified by the subplayitem is separated from each text subtitle data file, and has a one to one correspondence with a respective text subtitle data file,

wherein the subplayitem specifies a presentation interval for associated text subtitle data and the subplayitem includes fields indicating data coding information and a system time identifier for the associated text subtitle data,

wherein a graphic subtitle data is multiplexed with the main presentation data in a main file whereas the text subtitle data is included in the text subtitle data file separated from the main file, and either the text subtitle data or the graphic subtitle data is displayed together with the main presentation data.

15. The apparatus of claim 14, wherein the controller is configured to control the pickup to reproduce at least one plavitem, the playitem identifying a clip information file associated with the main file recorded on the optical disc.

16. The apparatus of claim 15, wherein the clip information files identified by the subplayitem and the clip information file identified by the playitem are different.

17. The apparatus of claim 15, wherein the controller is configured to control the pickup to reproduce at least one playlist which includes the playitem and the subplayitem.

18. The apparatus of claim 17, wherein the controller is configured to control the pickup to reproduce the playlist indicating a type of subpath with which the subplayitem is associated.

19. An apparatus for recording a data structure for managing reproduction of text subtitle data on an optical disc, the apparatus comprising:

a pickup configured to record data on the optical disc; and

a controller, operatively coupled to the pickup, configured to control the pickup to record at least one subplayitem on the optical disc, the subplayitem identifying at least one clip information file associated with at least one text subtitle data file including the text subtitle data recorded on the optical disc, the text subtitle data in the text subtitle data file being associated with at least a portion of main presentation data in a main file recorded on the optical disc, wherein each clip information file identified by the subplayitem is separated from each text subtitle data file and has a one to one correspondence with a respective text subtitle data file,

wherein the subplayitem specifies a presentation interval for associated text subtitle data and the subplayitem includes fields indicating data coding information and a system time identifier for the associated clips of text subtitle data,

wherein a graphic subtitle data is multiplexed with the main presentation data in a main file whereas the text subtitle data is included in the text subtitle data file separated from the main file, and either the text subtitle data or the graphic subtitle data is displayed together with the main presentation data.

20. The method of claim 19, further comprising:

recording at least one playitem on the optical disc, the playitem identifying a clip information file associated with the main file including the main presentation data.

21. The method of claim 20, wherein the clip information files identified by the subplayitem and the clip information file identified by the playitem are different.

22. The method of claim 20, further comprising:

recording at least one playlist, the playlist including the playitem and the subplayitem.

23. The method of claim 22, wherein the playlist indicates a type of subpath with which the subplayitem is associated.

24. The apparatus of claim 19, wherein the controller is configured to control the pickup to record at least one playitem identifying a clip information file associated with the main file recorded on the optical disc.

25. The apparatus of claim 24, wherein the clip information files identified by the subplayitem and the clip information file identified by the playitem are different.

26. The apparatus of claim 24, wherein the controller is configured to control the pickup to record at least one playlist which includes the playitem and the subplayitem.

27. The apparatus of claim 26, wherein the controller is configured to control the pickup to record the playlist indicating a type of subpath with which the subplayitem is associated.