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Recording medium having a data structure for managing reproduction of graphic data and methods and apparatuses of recording and reproducing

A technology of graphic data and data structure, applied in the direction of data recording, digital recording/reproduction, recording of information on disk, etc., can solve the problem of not providing sufficient data structure or method subtitle image data reproduction, etc.

Active Publication Date: 2012-03-21
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there is still no sufficient data structure or method provided to manage the reproduction of the subtitle image data recorded on the BD-ROM

Method used

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  • Recording medium having a data structure for managing reproduction of graphic data and methods and apparatuses of recording and reproducing
  • Recording medium having a data structure for managing reproduction of graphic data and methods and apparatuses of recording and reproducing
  • Recording medium having a data structure for managing reproduction of graphic data and methods and apparatuses of recording and reproducing

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Embodiment Construction

[0020] A high-density recording medium such as a BD-ROM is capable of storing image data in a format such as a bitmap (BMP) format as subtitle data (for example, subtitles or logos). In this disclosure, the terms "graphics data" or "graphics information" are used interchangeably with the term "subtitle" to refer to textual and / or graphical information. In DVD, subtitle data such as subtitles or logos are recorded in the format of image data and synthesized with main video data when reproduced. In other words, when reproducing a DVD, a disc reproducing device such as a DVD player reads subtitle image data from the DVD together with main video data, and outputs them to an external display device such as a television receiver, thereby producing and display the synthesized image.

[0021] figure 1 An illustration showing a screen in which a plurality of graphic data objects, also referred to as subtitle data, are displayed on a single page according to one embodiment of the pres...

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Abstract

In the data structure for managing reproduction of graphic data, a graphic information area of the recording medium includes at least one display information segment and at least one color information segment. Each display information segment provides information for an entire display and not just one region of a display. Each display information segment includes a color information family identifier identifying a family of color information, and the color information segment provides color information belonging to the identified family of color information.

Description

(1) Technical field [0001] The present invention relates to a method for managing and reproducing graphic data of a high-density optical disc. (2) Background technology [0002] Recently, optical discs like DVDs (Digital Versatile Discs) and optical disc devices like DVD recorders and DVD players for reproducing and recording data from and to these optical discs have been actively developed and commercialized. These discs can store large amounts of high-resolution video data and high-fidelity audio data. [0003] Typically, DVDs store main video data and graphics data, sometimes referred to as subtitle data. In general, subtitle data is understood as text or subtitle data that can be represented as a bitmap image. However, since such subtitle data is image data, some standards such as the European Video Broadcasting Standard ETSI EN300 743 V1.2.1 define subtitle data as text and / or graphic information to provide subtitles or graphics. In this disclosure, the term "graphic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/85G11B19/02G06T11/20G11B27/034G11B27/10G11B27/30
CPCG11B27/34G11B27/329G11B27/105G11B2220/213H04N9/8233H04N21/435H04N9/8205H04N5/85G11B27/034H04N21/235G11B2220/2541G11B20/12G11B20/10G11B27/10G11B19/02
Inventor 金炳振H·S·金J·H·杨徐康洙
Owner LG ELECTRONICS INC