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Recording medium, playback method, and playback device

專利號(hào)
US10867631B2
公開日期
2020-12-15
申請(qǐng)人
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA（US CA Torrance）
發(fā)明人
Hiroshi Yahata; Tadamasa Toma
IPC分類
G11B20/10; G11B27/32; H04N5/85; H04N9/87; G11B27/10; H04N9/804; H04N9/82; H04N5/93
技術(shù)領(lǐng)域
playback,stream,video,subtitle,hdr,luminance,playlist,vob,in,hdre
地域： CA CA Torrance

摘要

A recording medium includes a video stream of a standard-luminance range and a video stream of high-luminance range, which are used selectively in accordance with a playback environment. The recording medium also includes a subtitle stream of the standard-luminance range and a subtitle stream of the high-luminance range, which are used selectively in accordance with the playback environment. A playlist file includes a management region where playback control information relating to a main stream is stored, and includes an extended region. The management region stores first playback control information specifying playing of the video stream of the high-luminance range and the subtitle stream of the high-luminance range in combination. The extended region stores second playback control information specifying playing of the video stream of the standard-luminance range and the subtitle stream of the standard-luminance range in combination.

說明書

In the present embodiment, this is referred to simply as menu key, but there may be multiple menu keys such as on the remote controller of a player that plays DVDs. Defining an ID corresponding to each menu key enables appropriate processing to be performed as to each menu key.

Virtual Player Machine

FIG. 23 is a diagram for describing the functional configuration of the program processor 302. The functional configuration of the program processor 302 will be described with reference to FIG. 23. The program processor 302 is a processing module that has a virtual player machine inside. A virtual player machine is a function model defined as a BD-ROM, and is not dependent on the implementation of each BD-ROM player. That is to say, this guarantees that the same function can be executed in every BD-ROM player.

A virtual player machine has two major functions; programming functions and player variables. The player variables are stored and held in a register. The programming functions are based on JavaScript (registered trademark), and the following three functions are defined as BD-ROM-unique functions. Link function: Stops the current playback, and starts playback from specified playlist, cell, and time.

    • Link (PL #, Cell #, time)
      • PL #: playlist name
      • Cell #: cell No.
      • Time: time in cell to start playback
        PNG drawing function: Draws specified PNG data on image plane 209.

權(quán)利要求

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