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

• US 8,447,172 B2
• Filed: 06/14/2010
• Issued: 05/21/2013
• Est. Priority Date: 07/24/2003
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Hyung Sun, Seo, Kang Soo, Kim, Byung Jin
• Primary Examiner(s): Zhao, Daquan
• Application Number:
  US12/801,528
• Publication Number:
  US 20100253839A1
• Time in Patent Office: 1,072 Days
• Field of Search: 386/239, 386/244, 386/245, 386/246, 386/248, 386/326, 386/330, 386/334, 386/337
• US Class Current: 386/326
• 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 a first subtitle information segment identified as the text data defines at least one style information, a second subtitle information segment identified as the text data includes at least two text subtitle regions, and each of the text subtitle regions is linked to the style information defined in the first subtitle information segment by an identifier, the style information defining horizontal position, vertical position, width and height of the text subtitle region to be displayed,

wherein the graphic data is multiplexed with the main AV data into a file while the text data is separate from the main AV data,

wherein either one of the graphic data or the text data is displayed together with the main AV data.

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

3. The non-transitory computer readable medium of claim 2, wherein the palette information includes 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 at least one main AV data and 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 a first subtitle information segment identified as the text data defines at least one style information, a second subtitle information segment identified as the text data includes at least two text subtitle regions, and each of the text subtitle regions is linked to the style information defined in second the first subtitle information segment by an identifier, the style information defining horizontal position, vertical position, width and height of the text subtitle region to be displayed,

wherein the graphic data is multiplexed with the main AV data into a file while the text data is separate from the main AV data,

wherein either one of the graphic data or the text data is displayed together with the main AV data.

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

6. The method of claim 5, wherein the palette information includes a brightness value, a red chrominance value, a blue chrominance value, and a transparency value.

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

reproducing at least one main AV data and 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 a first subtitle information segment identified as the text data defines at least one style information, a second subtitle information segment identified as the text data includes at least two text subtitle regions, and each of the text subtitle regions is linked to the style information defined in the first subtitle information segment by an identifier, the style information defining horizontal position, vertical position, width and height of the text subtitle region to be displayed,

wherein the graphic data is multiplexed with the main AV data into a file while the text data is separate from the main AV data,

wherein either one of the graphic data or the text data is displayed together with the main AV data.

8. The method of claim 7, wherein the first subtitle information segment includes a palette identifier identifying palette information for controlling color attributes of the text data.

9. The method of claim 8, wherein the palette information includes a brightness value, a red chrominance value, a blue chrominance value, and a transparency value.

10. 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 at least one main AV data and 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 a first subtitle information segment identified as the text data defines at least one style information, a second subtitle information segment identified as the text data includes at least two text subtitle regions, and each of the text subtitle regions is linked to the style information defined in the first subtitle information segment by an identifier, the style information defining horizontal position, vertical position, width and height of the text subtitle region to be displayed,

wherein the graphic data is multiplexed with the main AV data into a file while the text data is separate from the main AV data,

wherein either one of the graphic data or the text data is displayed together with the main AV data.

11. The apparatus of claim 10, wherein the first subtitle information segment includes a palette identifier identifying palette information for controlling color attributes of the text data.

12. The apparatus of claim 11, wherein the palette information includes a brightness value, a red chrominance value, a blue chrominance value, and a transparency value.

13. 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 at least one main AV data and 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 a first subtitle information segment identified as the text data defines at least one style information, a second subtitle information segment identified as the text data includes at least two text subtitle regions, and each of the text subtitle regions is linked to the style information defined in the first subtitle information segment by an identifier, the style information defining horizontal position, vertical position, width and height of the text subtitle region to be displayed,

wherein the graphic data is multiplexed with the main AV data into a file while the text data is separate from the main AV data,

wherein either one of the graphic data or the text data is displayed together with the main AV data.

14. The apparatus of claim 13, wherein the first subtitle information segment includes a palette identifier identifying palette information for controlling color attributes of the text data.

15. The apparatus of claim 14, wherein the palette information includes a brightness value, a red chrominance value, a blue chrominance value, and a transparency value.