Information storage medium, method and apparatus for reproducing information from the information storage medium and a recording apparatus and recording method for recording video data on the informat
A technology for information storage and media, which is applied in information storage, recording information storage, electronic editing of digital analog information signals, etc., and can solve problems such as determination
Inactive Publication Date: 2008-02-13
KK TOSHIBA
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Problems solved by technology
Therefore, in trick play mode as in the case of MPEG2, there is a problem that the display order after decoding may not be determined by simply referring to the structures of I-, P-, and B-pictures
When the Video Elementary Stream (video elementary stream) in MPEG-4 AVC is a continuous collimated arrangement of nal units, unlike conventional MPEG-2, there may be fast forward playback (FF playback) or fast rewind playback (FR playback) Problems performed by rendering only I-pictures or I-pictures and P-pictures
Method used
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[0083] Hereinafter, an information storage medium, an information reproducing method, and an information reproducing apparatus according to embodiments of the present invention will be explained with reference to the drawings.
[0084] 1 (a) to (f) illustrate information content stored on a disc-shaped information storage medium such as an optical disc according to an embodiment of the present invention. The information storage medium 1 shown in Fig. 1 (a) comprises a High Density or High Definition Digital Versatile Disk (high density or high definition digital versatile disc (abbreviated as HD_DVD)), which enables data to be read by an optical beam, for example by Red laser with a wavelength of 650nm or blue laser with a wavelength of 405nm (or shorter) for readout.
[0085] As illustrated in FIG. 1( b ), the optical disc 1 has a lead-in region 10 on the inner peripheral side and a lead-out region 13 on the outer peripheral side. The optical disc 1 also has a volume space b...
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In an optical disk, a number of video object units arranged consecutively are recorded. The video object unit contains a navigation pack and video packs following the navigation pack, the navigation pack having address information and a picture category relating to a reference picture, the picture category being determined in compliance with the importance level in respect to the reference picture. A sequence of the packets constitutes a stream of nal units classified into a first group of the nal units contributing to produce the reference picture and a second group of the nil unit not contributing to produce the reference picture. In a nal header of the nal unit, reference item information is described that the nal unit belongs to the first group and contributes to produce the reference picture and a type of the payload, the reference item information indicates the priority of the nal unit.
Description
technical field [0001] The present invention relates to information storage media, methods and devices for reproducing data from information storage media and recording devices and methods for storing video data on information storage media, and in particular, to video data stored thereon that can be played in a special playable mode. An optical disc for playing video data, a method and a playback device for playing video data from an optical disc in a special playback mode, and a recording device and method for storing video data that can be played back in a special playable mode on an optical disc. Background technique [0002] Recently, DVD-Video discs with high image resolution and high playback capabilities and video players for reproducing such discs have been widely used. The choice of peripheral devices for reproducing such multi-channel audio has likewise broadened. Home theaters are becoming an attainable reality, and an environment is emerging that enables indivi...
Claims
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IPC IPC(8): G11B27/00G11B27/30H04N5/783G11B20/10G11B20/12H04N5/76H04N5/92
CPCG11B27/005H04N5/783G11B2220/2579G11B27/329G11B27/105H04N5/85H04N9/8205G11B2220/2562H04N9/8042G11B27/3027G11B2220/2541G11B27/034G11B20/10G11B20/12G11B27/00H04N5/76
Inventor 山影朋夫中条健古藤晋一郎
Owner KK TOSHIBA