Recording medium having a data structure for managing data streams associated with different languages and recording and reproducing methods and apparatuses

• US 20070168180A1
• Filed: 01/30/2007
• Published: 07/19/2007
• Est. Priority Date: 02/10/2004
• Status: Abandoned Application

• Current Assignee: Byung Kim, Jea Yoo, Kang Seo, Sung Park
• Original Assignee: Byung Kim, Jea Yoo, Kang Seo, Sung Park
• Inventors: Park, Sung, Kim, Byung, Yoo, Jea, Seo, Kang
• Application Number:
  US11/699,475
• Publication Number:
  US 20070168180A1
• Time in Patent Office: Days
• US Class Current: 704/9
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded

Abstract

In one embodiment, the recording medium includes a text subtitle stream file, storing a text subtitle, per language, and a playlist file including at least one playitem and at least one subplayitem. The playitem manages reproduction of main data associated with the text subtitle and the subplayitem manages reproduction of the text subtitle. The recording medium also includes a stream information file corresponding to the text subtitle stream file. The stream information file includes language information indicating a language of the text subtitle stream file.

Claims

1. A recording medium comprising:

a text subtitle stream file, storing a text subtitle, per language;

a playlist file including at least one playitem and at least one subplayitem, the playitem managing reproduction of main data associated with the text subtitle and the subplayitem managing reproduction of the text subtitle; and

a stream information file corresponding to the text subtitle stream file, the stream information file including language information indicating a language of the text subtitle stream file.

2. The recording medium of claim 1, wherein the text subtitle stream file is independent of a stream file storing the main data.

3. The recording medium of claim 1, wherein the language information is included as program information in the stream information file.

4. The recording medium of claim 1, wherein the stream information file further includes coding type indicator indicating a stream for a text subtitle.

5. The recording medium of claim 1, wherein the language information is a language code.

6. The recording medium of claim 1, wherein the language information is further included in the playlist file.

7. The recording medium of claim 6, wherein the language information is included in a stream table in the playitem, the stream table defining a list of data streams including the main data and the text subtitle.

8. The recording medium of claim 7, wherein the language information is included as a stream attribute of the text subtitle in the stream table.

10. A method of reproducing a text subtitle recorded on a recording medium, the method comprising:

selecting a text subtitle stream file, storing the text subtitle, of which language is correspondence with a user'"'"'s preference by checking language information in at least one stream information file associated with the text subtitle; and

reproducing the selected text subtitle stream file with main data recorded on the recording medium.

11. The method of claim 10, further comprising:

checking a playlist file including at least one playitem and at least one subplayitem, the playitem managing reproduction of the main data and the subplayitem managing reproduction of the text subtitle,

wherein the subplayitem specifies the at least one stream information file.

12. The method of claim 11, wherein the language information is being capable of checked from the playlist file.

13. An apparatus for reproducing a text subtitle recorded on a recording medium, the apparatus comprising:

a controller selecting a text subtitle stream file, storing the text subtitle, of which language is correspondence with a user'"'"'s selection by checking a language information in a stream information file associated with the text subtitle, and the controller controlling the selected text subtitle stream file to be reproduced with main data recorded on the recording medium.

14. The apparatus of the claim 13, wherein the controller further checks a playlist file including at least one playitem and at least one subplayitem, the playitem managing reproduction of the main data and the subplayitem managing reproduction of the text subtitle,

wherein the subplayitem specifies the at least one stream information file.

15. The apparatus of claim 14, wherein the controller further checks language information in the playlist file.

16. The apparatus of claim 13, further comprising:

reading unit reading data from the recording medium, wherein the controller controls the reader unit to read the stream information file and the text subtitle stream file from the recording medium.

17. A method of creating a text subtitle, the method comprising;

creating a text subtitle stream file, storing the text subtitle, per language; and

creating a stream information file corresponding to the created text subtitle stream file, the stream information file including language information indicating a language of the created text subtitle stream file.

18. The method of claim 17, further comprising:

creating a playlist file including language information of the created text subtitle stream file, the playlist file including at least one playitem managing reproduction of main data associated with the text subtitle and at least one subplayitem managing reproduction of the text subtitle.

19. An apparatus for creating a text subtitle, the apparatus comprising:

a controller creating a text subtitle stream file, storing the text subtitle, per language, and the controller creating a stream information file corresponding to the created text subtitle stream file, the stream information file including language information indicating a language of the created text subtitle stream file.

20. The apparatus of claim 19, wherein the controller further creates a playlist file including language information of the created text subtitle stream file, the playlist file including at least one playitem managing reproduction of main data associated with the text subtitle and at least one subplayitem managing reproduction of the text subtitle.

21. A method of recording a text subtitle on a recording medium, the method comprising

creating a text subtitle stream file, storing the text subtitle, per language;

creating a stream information file corresponding to the created text subtitle stream file, the stream information file including language information indicating a language of the created text subtitle stream file; and

recording the created text subtitle stream file and the created stream information file on the recording medium.

22. The method of claim 21, further comprising:

creating a playlist file including language information of the created text subtitle and recording the playlist file on the recording medium, the playlist file including at least one playitem managing reproduction of main data associated with the text subtitle and at least one subplayitem managing reproduction of the text subtitle.

23. An apparatus for recording a text subtitle on a recording medium, the apparatus comprising

a controller creating a text subtitle stream file, storing the text subtitle, per language, the controller creating a stream information file corresponding to the created text subtitle stream file, the stream information file including language information indicating a language of the created text subtitle stream file, and the controller controlling the created text subtitle stream file and the created stream information file to be recorded on the recording medium.

24. An apparatus of claim 23, wherein the controller further creates a playlist file including language information of the created text subtitle stream file and recording the playlist file on the recording medium, the playlist file including at least one playitem managing reproduction of main data associated with the text subtitle and at least one subplayitem managing reproduction of the text subtitle.

25. The apparatus of claim 23, further comprising:

recording unit recording data on the recording medium, wherein the controller controls the recording unit to record the created text subtitle stream file and the created stream information file on the recording medium.