Recording medium having a data structure for managing reproduction of text subtitle data and methods and apparatuses associated therewith

• US 7,571,386 B2
• Filed: 05/02/2005
• Issued: 08/04/2009
• Est. Priority Date: 05/03/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yoo, Jea Yong, Kim, Byung Jin, Seo, Kang Soo
• Primary Examiner(s): Lo; Weilun
• Assistant Examiner(s): Chuong; Truc T
• Application Number:
  US11/118,332
• Publication Number:
  US 20050262116A1
• Time in Patent Office: 1,555 Days
• Field of Search: 715200-203, 715/716, 715/719, 715722-723, 715/726
• US Class Current: 715/723
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded

Abstract

A recording area of an example recording medium stores a text subtitle stream that includes a dialog style segment and at least one dialog presentation segment associated with the dialog style segment. The dialog style segment includes at least one set of style information. Each set of style information provides region positioning information for positioning a region in an image and text box positioning information for positioning a text box in the region. The dialog presentation segment includes at least one region subtitle information. The region subtitle information includes text subtitle data (e.g., style data and/or text string data) and a region style identifier, and the region style identifier identifies one of the sets of style information in the dialog style segment to apply to the text subtitle data.

Claims

1. A recording medium storing a data structure for managing reproduction of data by a reproducing device, the data structure comprising:

at least one audio/video (AV) stream file and at least one text subtitle stream file, each text subtitle stream file including a style segment and at least one presentation segment associated with the style segment and the AV stream file including at least one of audio data and video data,

the style segment including at least one set of style information, each set of style information providing region positioning information for positioning a region in an image, text box positioning information for positioning a text box in the region, and text flow information indicating a character progression of text string data, and

the presentation segment including at least one region subtitle information, the region subtitle information including text subtitle data and a region style identifier; and

at least one clip information file containing attribute information and timing information of a corresponding stream file, wherein

the at least one clip information file is separate from the AV stream file and the text subtitle stream file,

one of the at least one clip information file has one to one correspondence with the AV stream file, and another clip information file has one to one correspondence with the text subtitle stream file,

the text subtitle stream file exists as a separate file from the AV stream file, and

the text subtitle data includes at least one of text string data and style data, and the region style identifier identifies one of the sets of style information in the style segment to apply to the text string data such that the text string data appears in the text box in which the identified set of style information is applied.

2. The recording medium of claim 1, wherein the presentation segment defines a number of region subtitle information, each region subtitle information providing text subtitle data and a region style identifier.

3. The recording medium of claim 2, wherein the presentation segment defines two region subtitle information at most.

4. The recording medium of claim 1, wherein the presentation segment provides a presentation time stamp start time and a presentation time stamp end time defining the presentation time of the text subtitle data.

5. The recording medium of claim 1, wherein the region position information provides a position of an upper left corner of the region in the image.

6. The recording medium of claim 5, wherein the region position information provides a horizontal position and a vertical position of the upper left corner of the region in the image.

7. The recording medium of claim 5, wherein the text box position information provides a position of an upper left corner of the text box in the region.

8. The recording medium of claim 7, wherein text box position information provides a horizontal position and a vertical position of the upper left corner of the text box with respect to the upper left corner of the region.

9. The recording medium of claim 1, wherein each set of style information further includes region size information indicating a size of the region, the region size information including height information indicating a height of the region and width information indicating a width of the region.

10. The recording medium of claim 1, wherein each set of style information further includes text box size information indicating a size of the text box, the text box size information including height information indicating a height of the text box and width information indicating a width of the text box.

11. The recording medium of claim 1, wherein each set of style information further includes an indicator of a background color for the region.

12. The recording medium of claim 1, wherein each set of style information farther includes text alignment information indicating how to align text subtitle data in the text box.

13. The recording medium of claim 1, wherein each set of style information farther includes line space information indicating a spacing to employ between lines of text subtitle data in the text box.

14. The recording medium of claim 1, wherein each set of style information farther includes a font identifier identifying a font file recorded on the recording medium to use in reproducing text subtitle data in the text box.

15. The recording medium of claim 1, wherein each set of style information further includes a font style indicator indicating a font style to apply to text subtitle data in the text box.

16. The recording medium of claim 1, wherein each set of style information further includes font size information indicating a font size to apply to text subtitle data in the text box.

17. The recording medium of claim 1, wherein each set of style information further includes font color information indicating a color to apply to text subtitle data in the text box.

18. The recording medium of claim 1, wherein the each set of style information includes a flag indicating whether a player may use at least one type of style information set forth by the player instead of that set forth by the set of style information.

19. The recording medium of claim 1, wherein each set of style information further includes user changeable information indicating which style information in the set of style information the user can change.

20. The recording medium of claim 19, wherein the user changeable information further indicates, for at least one type of style information, one of a modification amount, modification range and modification direction.

21. The recording medium of claim 1, wherein

the region position information provides a horizontal position and a vertical position of the upper left corner of the region in the image;

each set of style information further includes region size information indicating a height of the region and a width of the region; and

each set of style information further includes an indicator of a background color for the region.

22. The recording medium of claim 21, wherein each set of style information includes user changeable information, the user changeable information indicating a horizontal direction that a user may move the region, and a vertical direction the user may move the region.

23. The recording medium of claim 21, wherein

the text box position information provides a horizontal position and a vertical position of the upper left corner of the text box in the region;

and

each set of style information further includes text box size information indicating a height of the text box and a width of the text box, text flow information indicating a character progression of text string data to employ in the text box, text alignment information indicating how to align text subtitle data in the text box, line space information indicating a spacing to employ between lines of text subtitle data in the text box, a font identifier identifying a font file recorded on the recording medium to use in reproducing text subtitle data in the text box, a font style indicator indicating a font style to apply to text subtitle data in the text box, font size information indicating a font size to apply to text subtitle data in the text box, and font color information indicating a color to apply to text subtitle data in the text box.

24. The recording medium of claim 23, wherein each set of style information includes user changeable information, the user changeable information indicating a horizontal direction that a user may move the region, a vertical direction the user may move the region, whether the user may one of increase and decrease the font size, a horizontal direction the user may move the text box, a vertical direction the user may move the text box, whether the user may one of increase and decrease the height of the text box, whether the user may one of increase and decrease the width of the text box, and whether the user may one of increase and decrease the spacing to employ between lines of text subtitle data in the text box.

25. The recording medium of claim 1, wherein

the text box position information provides a horizontal position and a vertical position of the upper left corner of the text box in the region;

and

each set of style information further includes text box size information indicating a height of the text box and a width of the text box, text flow information indicating a character progression of text string data to employ in the text box, text alignment information indicating how to align text subtitle data in the text box, line space information indicating a spacing to employ between lines of text subtitle data in the text box, a font identifier identifying a font file recorded on the recording medium to use in reproducing text subtitle data in the text box, a font style indicator indicating a font style to apply to text subtitle data in the text box, font size information indicating a font size to apply to text subtitle data in the text box, and font color information indicating a color to apply to text subtitle data in the text box.

26. The recording medium of claim 25, wherein each set of style information includes user changeable information, the user changeable information whether the user may one of increase and decrease the font size, a horizontal direction the user may move the text box, a vertical direction the user may move the text box, whether the user may one of increase and decrease the height of the text box, whether the user may one of increase and decrease the width of the text box, and whether the user may one of increase and decrease the spacing to employ between lines of text subtitle data in the text box.

27. The recording medium of claim 1, wherein the recording area stores the style segment and each presentation segment as respective single packet elementary streams.

28. The recording medium of claim 1, wherein the style segment includes a type indicator indicating that the style segment is a style segment.

29. A method for storing a data structure, the data structure, comprising:

recording at least one audio/video (AV) stream file and at least one text subtitle stream file on a recording medium, each text subtitle stream file including a style segment and at least one presentation segment associated with the style segment and the AV stream file including at least one of audio data and video data,

the style segment including at least one set of style information, each set of style information providing region positioning information for positioning a region in an image and text box positioning information for positioning a text box in the region, and text flow information indicating a character progression of text string data, and

the presentation segment including at least one region subtitle information, the region subtitle information including text subtitle data and a region style identifier; and

recording at least one clip information file containing attribute information and timing information of a corresponding stream file, wherein

the at least one clip information file is separate from the AV stream file and the text subtitle stream file,

one of the at least one clip information file has one to one correspondence with the AV stream file, and another clip information file has one to one correspondence with the text subtitle stream file,

the text subtitle stream file exists as a separate file from the AV stream file, and

the text subtitle data includes at least one of text string data and style data, and the region style identifier identifies one of the sets of style information in the style segment to apply to the text string data such that the text string data appears in the text box in which the identified set of style information is applied.

30. An apparatus for decoding text subtitle data, comprising:

an audio/video (AV) decoder configured to decode at least one AV stream file, the AV stream file including at least one of audio data and video data;

a preloading buffer configured to preload at least one text subtitle stream file; and

a text subtitle decoder configured to decode the text subtitle stream file by using at least one clip information file containing attribute information and timing information of a corresponding stream file,

the text subtitle stream file including a style segment and at least one presentation segment associated with the style segment,

the style segment including at least one set of style information, each set of style information providing region positioning information for positioning a region in an image and text box positioning information for positioning a text box in the region, and text flow information indicating a character progression of text string data, and

the presentation segment including at least one region subtitle information, the region subtitle information including text subtitle data and a region style identifier, wherein

the clip information file is separate from the AV stream file and the text subtitle stream file,

one of the at least one clip information file has one to one correspondence with the AV stream file, and another clip information file has one to one correspondence with the text subtitle stream file,

the text subtitle stream file exists as a separate file from the AV stream file, and

the text subtitle data includes at least one of text string data and style data, and the region style identifier identifies one of the sets of style information in the style segment to apply to the text string data such that the text string data appears in the text box in which the identified set of style information is applied.

31. A method for reproducing a data structure for managing text subtitle data on a recording medium, the method comprising:

reproducing at least one text subtitle stream file and at least one audio/video (AV) stream file recorded on the recording medium, each text subtitle stream file including a style segment and at least one presentation segment associated with the style segment and the AV stream file including at least one of audio data and video data,

the style segment including at least one set of style information, each set of style information providing region positioning information for positioning a region in an image and text box positioning information for positioning a text box in the region, and text flow information indicating a character progression of text string data, and

the presentation segment including at least one region subtitle information, the region subtitle information including text subtitle data and a region style identifier; and

reproducing at least one clip information file recorded on the recording medium, the clip information file containing attribute information and timing information of a corresponding stream file, wherein

the clip information file is separate from the AV stream file and the text subtitle stream file,

one of the at least one clip information file has one to one correspondence with the AV stream file, and another clip information file has one to one correspondence with the text subtitle stream file,

the text subtitle stream file exists as a separate file from the AV stream file, and

the text subtitle data includes at least one of text string data and style data, and the region style identifier identifies one of the sets of style information in the style segment to apply to the text string data such that the text string data appears in the text box in which the identified set of style information is applied.

32. The method of claim 31, further comprising:

preloading the entire text subtitle streams into a buffer.

33. An apparatus for recording text subtitle streams, the apparatus comprising:

a pickup configured to record data on a recording medium; and

a controller configured to control the pickup to record at least one text subtitle stream file and at least one audio/video (AV) stream file, each text subtitle stream file including a style segment including at least one set of style information and the AV stream file including at least one of audio data and video data, each set of style information providing region positioning information for positioning a region in an image, text box positioning information for positioning a text box in the region, and text flow information indicating a character progression of text string data, and a presentation segment including at least one region subtitle information, the region subtitle information providing text subtitle data and a region style identifier; and

the controller is further configured to control the pickup to record at least one clip information file containing attribute information and timing information of corresponding stream file, wherein

the at least one clip information is separate from the AV stream file and the text subtitle stream file,

one of the at least one clip information file has one to one correspondence with the AV stream file, and another clip information file has one to one correspondence with the text subtitle stream file,

the text subtitle stream file exists as a separate file from the AV stream file, and

the text subtitle data includes at least one of text string data and style data, and the region style identifier identifies one of the sets of style information in the style segment to apply to the text string data such that the text string data appears in the text box in which the identified set of style information is applied.

34. The apparatus of claim 33, wherein the controller is configured to control the pickup to record the region position information providing a position of an upper left corner of the region in the image.

35. The apparatus of claim 34, wherein the controller is configured to control the pickup to record the region position information providing a horizontal position and a vertical position of the upper left corner of the region in the image.

36. The apparatus of claim 33, wherein the controller is configured to control the pickup to record the text box position information providing a position of an upper left corner of the text box in the region.

37. The apparatus of claim 36, wherein the controller is configured to control the pickup to record text box position information providing a horizontal position and a vertical position of the upper left corner of the text box with respect to the upper left corner of the region.

38. The apparatus of claim 33, wherein the controller is configured to control the pickup to record each set of style information further including text alignment information indicating how to align text subtitle data in the text box.

39. An apparatus for reproducing at least one text subtitle stream, the apparatus comprising:

a pickup configured to reproduce data on a recording medium; and

a controller configured to control the pickup to reproduce at least one text string stream and at least one audio/video (AV) stream file, each text string stream file including a style segment including at least one set of style information and the AV stream file including at least one of audio data and video data, each set of style information providing region positioning information for positioning a region in an image, text box positioning information for positioning a text box in the region, and text flow information indicating a character progression of text string data, and a presentation segment including at least one region subtitle information, the region subtitle information providing text subtitle data and a region style identifier; and

the controller is further configured to control the pickup to reproduce at least one clip information file containing attribute information and timing information of a corresponding stream file, wherein

the at least one clip information is separate from the AV stream file and the text subtitle stream file,

one of the at least one clip information file has one to one correspondence with the AV stream file, and another clip information file has one to one correspondence with the text subtitle stream file,

the text subtitle stream file exists as a separate file from the AV stream file, and

the text subtitle data includes at least one of text string data and style data, and the region style identifier identifies one of the sets of style information in the style segment to apply to the text string data such that the text string data appears in the text box in which the identified set of style information is applied.

40. The apparatus of claim 39, wherein the controller is configured to control the pickup to record the region position information providing a position of an upper left corner of the region in the image.

41. The apparatus of claim 40, wherein the controller is configured to control the pickup to record the region position information providing a horizontal position and a vertical position of the upper left corner of the region in the image.

42. The apparatus of claim 39, wherein the controller is configured to control the pickup to record the text box position information providing a position of an upper left corner of the text box in the region.

43. The apparatus of claim 42, wherein the controller is configured to control the pickup to record text box position information providing a horizontal position and a vertical position of the upper left corner of the text box with respect to the upper left corner of the region.

44. The apparatus of claim 39, wherein the controller is configured to control the pickup to record each set of style information further including text alignment information indicating how to align text subtitle data in the text box.