Recording medium and method and apparatus for reproducing and recording text subtitle streams

• US 20050147387A1
• Filed: 01/05/2005
• Published: 07/07/2005
• Est. Priority Date: 01/06/2004
• 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:
  US11/028,530
• Publication Number:
  US 20050147387A1
• Time in Patent Office: Days
• US Class Current: 386/244
• CPC Class Codes: G11B 2020/1288 Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical 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 27/322 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 21/42646 for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
• 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 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/4884 for displaying subtitles
• CPC Class Codes: H04N 5/84 using optical recording H04N5/80, H04N5/89, H04N5/91 take precedence
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8233 the additional signal being a character code signal

Abstract

A recording medium and method and apparatus for reproducing and recording text subtitle streams are disclosed. The text subtitle stream includes a dialog style segment defining a set of region styles and at least one dialog presentation segment. Each dialog style segment contains at least one region of dialog text, where each region of dialog text includes link information configured to link each region of dialog text to one of the set of region styles defined in the dialog style segment. For example, the link information is a region style identification which uniquely identifies the region style linked to each region of dialog text. When each region of dialog text is reproduced, the region style identified by the region style identification is applied.

Claims

1. A recording medium for reproducing text subtitle streams, comprising:

a data area storing at least one text subtitle stream, each text subtitle stream including a dialog style segment defining a set of region styles and at least one dialog presentation segment, each dialog presentation segment containing at least one region of dialog text, each region of dialog text including link information configured to link the each region of dialog text to one of the set of region styles defined in the dialog style segment.

2. The recording medium of claim 1, wherein the link information is a region style identification uniquely identifying the region style linked to the each region of dialog text.

3. The recording medium of claim 1, wherein a number of the set of region styles defined in the dialog style segment is less than or equal to 60.

4. The recording medium of claim 1, wherein each region of dialog text further includes at least one text string and defines an inline style for each text string, the inline style being applied to at least a portion of each text string when each region of dialog text is decoded.

5. A recording medium for reproducing text subtitle streams, comprising:

a data area storing at least one text subtitle stream, each text subtitle stream including a dialog style segment defining a set of region styles and a plurality of dialog presentation segments, at least one of the plurality of dialog presentation segments containing first and second regions of dialog text which include first and second region style identifications, respectively, wherein the first and second region style identifications are configured to link the first and second regions of dialog text to two distinct region styles defined in the dialog style segment, respectively.

6. A recording medium for reproducing text subtitle streams, comprising:

a data area storing at least one text subtitle stream, each text subtitle stream including a dialog style segment defining a set of region styles and a plurality of dialog presentation segments, each dialog presentation segment containing at least one region of dialog text, each region of dialog text including a region style identification uniquely identifying one of the set of region styles defined in the dialog style segment.

7. A recording medium for reproducing text subtitle streams, comprising:

a data area storing a set of global style information defining a set of global styles, respectively, and at least one region of dialog text to be presented during a predetermined presentation time slot, each region of dialog text including link information configured to link each region of dialog text to one of the set of global styles, the linked global style specifying region presentation properties of the each region of dialog text.

8. The recording medium of claim 7, wherein a number of the at least one region of dialog text to be presented during the predetermined presentation time slot is less than or equal to 2.

9. The recording medium of claim 7, wherein the linked global style is a region style to be applied to an entire portion of the each region of dialog text.

10. The recording medium of claim 9, wherein the link information is a region style identification uniquely identifying the linked global style.

11. The recording medium of claim 7, wherein each region of dialog text further includes at least one text string and defines a local style to be applied to at least a portion of each text string.

12. The recording medium of claim 11, wherein the local style is an inline style configured to change one of the region presentation properties specified by the linked global style.

13. The recording medium of claim 7, wherein the set of global style information is stored in a packet elementary stream.

14. A method for reproducing text subtitle streams, the method comprising:

reading a text subtitle stream recorded on a recording medium, the text subtitle stream including a dialog style segment defining a set of region styles and a plurality of dialog presentation segments, each dialog presentation segment containing at least one region of dialog text;

reading a region style identification included in each region of dialog text, the region style identification uniquely identifying one of the set of region styles defined in the dialog style segment; and

decoding each region of dialog text by applying the region style identified by the region style identification.

15. The method of claim 14, wherein each dialog presentation segment further contains presentation time information indicating presentation start and end times of the at least one region of dialog text.

16. The method of claim 14, further comprising:

preloading an entire portion of the text subtitle stream into a buffer.

17. An apparatus for reproducing text subtitle streams, the apparatus comprising:

a buffer configured to preload a text subtitle stream recorded on a recording medium, the preloaded text subtitle stream including a dialog style segment defining a set of region styles and a plurality of dialog presentation segments, each dialog presentation segment containing at least one region of dialog text; and

a text subtitle decoder configured to read a region style identification included each region of dialog text, the region style identification uniquely identifying one of the set of region styles, the text subtitle decoder being further configured to decode each region of dialog text by applying the identified region style.

18. A recording medium for reproducing text subtitle streams, comprising:

a first data area storing at least one AV stream and at least one text subtitle stream, each text subtitle stream including a dialog style segment defining a set of region styles and at least one dialog presentation segment, each dialog presentation segment containing at least one region of dialog text, each region of dialog text including link information configured to link the each region of dialog text to one of the set of region styles defined in the dialog style segment; and

a second data area storing clip information files that correspond to the at least one AV stream and the at least one text subtitle stream, respectively, each clip information file containing property information of a corresponding stream.

19. The recording medium of claim 18, wherein the link information is a region style identification uniquely identifying one of the set of region styles defined in the dialog style segment.

20. A method for reproducing text subtitle streams, the method comprising:

reproducing at least one text subtitle stream recorded on a recording medium, each text subtitle stream including a dialog style segment defining a set of region styles and at least one dialog presentation segment, each dialog presentation segment containing at least one region of dialog text, each region of dialog text including link information configured to link the each region of dialog text to one of the set of region styles defined in the dialog style segment.

21. An apparatus for reproducing text subtitle streams, the apparatus comprising:

a driver configured to drive an optical reproducing device to reproduce data recorded on a recording medium; and

a controller configured to control the driver to reproduce at least one text subtitle stream recorded on the recording medium, each text subtitle stream including a dialog style segment defining a set of region styles and at least one dialog presentation segment, each dialog presentation segment containing at least one region of dialog text, each region of dialog text including link information configured to link the each region of dialog text to one of the set of region styles defined in the dialog style segment.

22. A method of recording text subtitle streams, the method comprising:

recording at least one text subtitle stream on a recording medium, each text subtitle stream including a dialog style segment defining a set of region styles and at least one dialog presentation segment, each dialog presentation segment containing at least one region of dialog text, each region of dialog text including link information configured to link the each region of dialog text to one of the set of region styles defined in the dialog style segment.

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

a driver configured to drive an optical recording device to record data on a recording medium;

a controller for controlling the driver to record at least one text subtitle stream on the recording medium, each text subtitle stream including a dialog style segment defining a set of region styles and at least one dialog presentation segment, each dialog presentation segment containing at least one region of dialog text, each region of dialog text including link information configured to link the each region of dialog text to one of the set of region styles defined in the dialog style segment.