Recording medium having a data structure for managing reproduction of text subtitle data recorded thereon and recording and reproducing methods and apparatuses

• US 7,769,277 B2
• Filed: 07/26/2004
• Issued: 08/03/2010
• Est. Priority Date: 07/24/2003
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Byung Jin, Kim, Hyung Sun, Seo, Kang Soo
• Primary Examiner(s): Tran; Thai
• Assistant Examiner(s): Zhao; Daquan
• Application Number:
  US10/898,207
• Publication Number:
  US 20050019019A1
• Time in Patent Office: 2,199 Days
• Field of Search: 386125-126, 386/52, 386/55, 386/82, 386/95, 386/98
• US Class Current: 386/241
• 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 27/105 of operating discs
• 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

In the data structure for managing reproduction of text subtitle data, a text subtitle information area stores at least one text subtitle information segment. The text subtitle information segment is represented by a single PES packet of transport packets. In one embodiment, the text subtitle information segment includes an identifier identifying the text subtitle information segment as a text subtitle information segment.

Claims

1. A non-transitory computer readable medium having an executable data structure for managing reproduction of text subtitle data by a reproducing apparatus, comprising:

an area storing at least one main AV data and a plurality of subtitle information segments, each one of the subtitle information segments being represented by a single PES packet of transport packets which includes a packet identifier for identifying a type of packet, wherein each one of the subtitle information segments includes a segment identifier identifying the subtitle information segment as one of text data and graphic data,

wherein one of the subtitle information segments identified as the text data includes at most two text subtitle regions, and each text subtitle region is linked to at least one style information defined in another one of the subtitle information segments identified as the text data using an identifier,

wherein the other one of the subtitle information segments identified as the graphic data is multiplexed with the main AV data into a file.

2. The non-transitory computer readable medium of claim 1, wherein a first subtitle information segment among the plurality of subtitle information segments identified as the text data includes a palette identifier identifying palette information for controlling color attributes of the subtitle area.

3. The non-transitory computer readable medium of claim 2, wherein the palette information includes the palette, a brightness value, a red chrominance value, a blue chrominance value, and a transparency value.

4. A method of recording text subtitle data on a recording medium using a recording apparatus, the method comprising:

recording a plurality of subtitle information segments on the recording medium using the recording apparatus, each one of the subtitle information segments being represented by a single PES packet of transport packets which includes a packet identifier for identifying a type of the packet, wherein each one of the subtitle information segments includes a segment identifier identifying the subtitle information segment as one of text data and graphic data,

wherein one of the subtitle information segments identified as the text data includes at most two text subtitle regions, and each text subtitle region is linked to at least one style information defined in another one of the subtitle information segments identified as the text data using an identifier,

wherein the other one of the subtitle information segments identified as the graphic data is multiplexed with the main AV data into a file.

5. The method of claim 4, wherein a first subtitle information segment among the plurality of subtitle information segments identified as the text data includes a palette identifier identifying palette information for controlling color attributes of the subtitle area.

6. A method of reproducing text subtitle data from a recording medium using a reproducing apparatus, comprising:

reproducing a plurality of subtitle information segments from the recording medium using the reproducing apparatus, each one of the subtitle information segments being represented by a single PES packet of transport packets which includes a packet identifier for identifying a type of the packet, wherein each one of the subtitle information segments includes a segment identifier identifying the subtitle information segment as one of text data and graphic data,

wherein one of the subtitle information segments identified as the text data includes at most two text subtitle regions, and each text subtitle region is linked to at least one style information defined in another one of the subtitle information segments identified as the text data using an identifier

wherein the other one of the subtitle information segments identified as the graphic data is multiplexed with the main AV data into a file.

7. The method of claim 6, wherein a first subtitle information segment among the plurality of subtitle information segments identified as the text data includes a palette identifier identifying palette information for controlling color attributes of the subtitle area.

8. An apparatus for recording text subtitle data on a recording medium, comprising:

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

a controller configured to control the pickup to record a plurality of subtitle information segments on the recording medium, each one of the subtitle information segments being represented by a single PES packet of transport packets which includes a packet identifier for identifying a type of the packet, wherein each one of the subtitle information segments includes a segment identifier identifying the subtitle information segment as one of text data and graphic data,

wherein one of the subtitle information segments identified as the text data includes at most two text subtitle regions, and each text subtitle region is linked to at least one style information defined in another one of the subtitle information segments identified as the text data using an identifier,

wherein the other one of the subtitle information segments identified as the graphic data is multiplexed with the main AV data into a file.

9. The apparatus of claim 8, wherein the controller is configured to further control the pickup to record a first subtitle information segment among the plurality of subtitle information segments identified as the text data including a palette identifier identifying palette information for controlling color attributes of the subtitle data.

10. An apparatus for reproducing text subtitle data from a recording medium, comprising:

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

a controller configured to control the pickup to reproduce a plurality of subtitle information segments from the recording medium, each one of the subtitle information segments being represented by a single PES packet of transport packets which includes a packet identifier for identifying a type of the packet, wherein each one of the subtitle information segments includes a segment identifier identifying the subtitle information segment as one of text data and graphic data,

wherein one of the subtitle information segments identified as the text data includes at most two text subtitle regions, and each text subtitle region is linked to at least one style information defined in another one of the subtitle information segments identified as the text data using an identifier,

wherein the other one of the subtitle information segments identified as the graphic data is multiplexed with the main AV data into a file.

11. The apparatus of claim 10, wherein the controller is configured to further control the pickup to reproduce a first subtitle information segment among the plurality of subtitle information segments identified as the text data including a palette identifier identifying palette information for controlling color attributes of the subtitle data.

12. The apparatus of claim 10, wherein the controller is configured to control the pickup to reproduce a text subtitle information segment after identifying the text subtitle information segment with the segment identifier.

13. The apparatus of claim 10, further comprising:

a depacketizer configured to convert the packet into a data stream;

a demultiplexer configured to demultiplex the data stream into an encoded data; and

a decoder configured to decode the encoded data.

14. The apparatus of claim 13, wherein the controller is configured to control the operation of the depacketizer, the demultiplexer, and the decoder.