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Information storage medium, and method of and apparatus for recording and reproducing the same

A technology for information storage and media, which can be used in digital recording/reproduction, image communication, components of color TV, etc., and can solve problems such as image quality degradation

Inactive Publication Date: 2005-04-06
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the graphics quality is degraded because the multiplex bitrate allocated to video must be reduced to multiplex multiple audio and sub-image streams according to the reserved multiplex bitrate
Therefore, the number of streams provided by the DVD standard (i.e. 8 audio streams and 32 sub-image streams) cannot be ideally multiplexed while maintaining high quality

Method used

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  • Information storage medium, and method of and apparatus for recording and reproducing the same
  • Information storage medium, and method of and apparatus for recording and reproducing the same
  • Information storage medium, and method of and apparatus for recording and reproducing the same

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Embodiment Construction

[0028] Embodiments of the present invention will now be described in detail, examples of which are illustrated in the accompanying drawings, in which like reference numerals refer to like parts. The embodiments are described below in order to explain the present invention by referring to the figures.

[0029] figure 1 is a block diagram explaining reproduction of an unmultiplexed audio stream, sub-picture stream, and interactive graphics stream according to an embodiment of the present invention. refer to figure 1, parts of the audio stream, sub-image stream, and interactive graphics stream can be multiplexed together with the video stream, and parts of the audio stream and sub-image stream can be stored separately in the information storage medium without being multiplexed.

[0030] Since the amount of audio video (AV) data is large, the AV data is recorded after being compressed in time and space domains. One available compression method is the widely used Moving Picture ...

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Abstract

A method, medium, and apparatus for separately generating and reproducing non-multiplexed interactive graphics, audio, and / or sub-picture streams independent of a multiplexed main stream. The medium with audio-video (AV) data recorded thereon includes at least: multiplexed AV data and non-multiplexed interactive graphics, audio, and / or sub-picture streams. Accordingly, it is possible to support more audio and / or sub-picture and interactive graphics streams without being limited by a multiplexing bit-rate, provide continuous reproduction, and improve video image quality.

Description

[0001] This application claims the benefit of priority of Korean Patent Applications Nos. 2003-69022 and 2004-73373 filed with the Korean Intellectual Property Office on October 4, 2003 and September 14, 2004, respectively, which applications are incorporated herein by reference, For reference. technical field [0002] The present invention relates to reproducing audio and video data, in particular to a method, device and information storage medium for storing unmultiplexed interactive graphics and audio and / or sub-image streams separately from a multiplexed main stream, and to a method for Apparatus and method for reproducing information storage media. Background technique [0003] Audio Visual (AV) data includes video data, audio data, sub-picture data, and interactive graphics data. This data is transmitted or stored as a Transport Stream or Program Stream after being formed into packets of a predetermined size. On the other hand, they can be formed as separate streams ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/92H04N5/765H04N5/781H04N5/85H04N5/907H04N9/804H04N9/806H04N9/82
CPCH04N5/85H04N5/765H04N5/781H04N9/8063H04N9/8227H04N9/8042H04N5/907
Inventor 郑吉洙高祯完朴成煜
Owner SAMSUNG ELECTRONICS CO LTD