Method for controlling an optical pick-up for reading data streams for simultaneous reproduction
    21.
    发明授权
    Method for controlling an optical pick-up for reading data streams for simultaneous reproduction 有权
    用于控制用于读取用于同时再现的数据流的光学拾取器的方法

    公开(公告)号:US07978962B2

    公开(公告)日:2011-07-12

    申请号:US10552037

    申请日:2004-03-22

    IPC分类号: H04N5/93

    摘要: A method for optimizing a scheduler for an optical pick-up reduces the pick-up jump frequency and the initial start-up time for reproduction. The pick-up reads data streams from different files on an optical storage medium, e.g. Blu-Ray disc, and buffers the data streams in separate buffers, e.g. for video, audio and subtitles. Buffer sizes are optimized when the video buffer is as small as possible, i.e. large enough to bridge the pick-up access and read times for the other streams, and the buffers the lower rated streams are extended such that the pick-up access frequency for lower rated streams is an integer multiple of the pick-up access frequency for the highest rated stream, usually the video stream. Initial start-up time is minimized by filling the buffers initially only to a minimum required level.

    摘要翻译: 用于优化用于光学拾取器的调度器的方法减小了拾取跳跃频率和用于再现的初始启动时间。 拾取器从光学存储介质上的不同文件读取数据流,例如。 蓝光盘,并将数据流缓存在单独的缓冲器中,例如。 用于视频,音频和字幕。 当视频缓冲器尽可能小时,缓冲区大小被优化,即足够大以桥接其他流的接收访问和读取时间,并且缓冲器的较低额定流量被扩展,使得接收访问频率为 较低额定流量是最高额定流量(通常为视频流)的拾取访问频率的整数倍。 初始启动时间通过最初将缓冲区填充到最低要求级别来最小化。

    Method for Run-Length Encoding of a Bitmap Data Stream

    公开(公告)号:US20110064144A1

    公开(公告)日:2011-03-17

    申请号:US12957734

    申请日:2010-12-01

    IPC分类号: H04N7/12

    摘要: Subtitling aims at the presentation of text information and graphical data, encoded as pixel bitmaps. The size of subtitle bitmaps may exceed video frame dimensions, so that only portions are displayed at a time. The bitmaps are a separate layer lying above the video, e.g. for synchronized video subtitles, animations and navigation menus, and therefore contain many transparent pixels. An advanced adaptation for bitmap encoding for HDTV, e.g. 1920.times.1280 pixels per frame as defined for the Blu-ray Disc Prerecorded format, providing optimized compression results for such subtitling bitmaps, is achieved by a four-stage run length encoding. Shorter or longer sequences of pixels of a preferred color, e.g. transparent, are encoded using the second or third shortest code words, while single pixels of different color are encoded using the shortest code words, and sequences of pixels of equal color use the third or fourth shortest code words.

    Method for run-length encoding of a bitmap data stream
    23.
    发明授权
    Method for run-length encoding of a bitmap data stream 有权
    位图数据流的运行长度编码方法

    公开(公告)号:US07657109B2

    公开(公告)日:2010-02-02

    申请号:US10561984

    申请日:2004-05-06

    IPC分类号: G06K9/36 G06K9/46

    摘要: Subtitling aims at the presentation of text information and graphical data, encoded as pixel bitmaps. The size of subtitle bitmaps may exceed video frame dimensions, so that only portions are displayed at a time. The bitmaps are a separate layer lying above the video, e.g. for synchronized video subtitles, animations and navigation menus, and therefore contain many transparent pixels. An advanced adaptation for bitmap encoding for HDTV, e.g. 1920×1280 pixels per frame as defined for the Blu-ray Disc Prerecorded format, providing optimized compression results for such subtitling bitmaps, is achieved by a four-stage run length encoding. Shorter or longer sequences of pixels of a preferred color, e.g. transparent, are encoded using the second or third shortest code words, while single pixels of different color are encoded using the shortest code words, and sequences of pixels of equal color use the third or fourth shortest code words.

    摘要翻译: 字幕旨在呈现文本信息和图形数据,编码为像素位图。 字幕位图的大小可能会超过视频帧尺寸,因此只能显示部分。 位图是位于视频上方的单独的层,例如 用于同步视频字幕,动画和导航菜单,因此包含许多透明像素。 适用于HDTV的位图编码的高级适配。 通过四级游程长度编码实现了为蓝光光盘预录制格式定义的每帧1920x1280像素,为这些字幕位图提供优化的压缩结果。 优选颜色的较短或更长的像素序列,例如。 使用第二或第三最短代码字进行编码,而使用最短代码字对不同颜色的单个像素进行编码,并且等颜色的像素序列使用第三或第四最短代码字。

    Method for controlling an optical pick-up for reading data streams for simultaneous reproduction
    24.
    发明授权
    Method for controlling an optical pick-up for reading data streams for simultaneous reproduction 有权
    用于控制用于读取用于同时再现的数据流的光学拾取器的方法

    公开(公告)号:US07643384B2

    公开(公告)日:2010-01-05

    申请号:US10552264

    申请日:2004-03-22

    IPC分类号: G11B7/085

    摘要: Optical discs may support “Out Of Multiplex” formats, meaning that different presentation components, like video, audio and subtitles, are stored on different files on the disc, e.g. Blu-ray discs. The different data streams are read by a single pick-up, requiring frequent pick-up jumps and extensive data buffering. The method for operating a scheduler for an optical pick-up reduces the number of pick-up jumps while optimizing the required buffer space. The scheduler is based on a static schema, meaning that the buffer for the data stream with the highest data rate is of minimal size, and therefore refilled in short periods, while the buffers for the lower rated streams are dimensioned such that they can be refilled in multiples of the short period. Deviations from the static schema may be allowed, e.g. due to multi-angle video technique. Afterwards the scheduler returns to the original schedule.

    摘要翻译: 光盘可以支持“多路复用”格式,这意味着将不同的呈现组件(如视频,音频和字幕)存储在光盘上的不同文件上,例如。 蓝光光盘。 不同的数据流由单个拾取器读取,需要频繁的拾取跳跃和广泛的数据缓冲。 用于操作光学拾取器的调度器的方法在优化所需的缓冲器空间的同时减少拾取跳跃的次数。 调度程序基于静态模式,这意味着数据速率最高的数据流的缓冲区的大小最小,因此在短时间内重新填充,而较低等级流的缓冲区的大小可以重新填充 在短时间内的倍数。 可以允许与静态模式的偏差,例如。 由于多角度视频技术。 之后,调度程序返回到原始调度。

    Method and Apparatus For Executing Software Applications
    27.
    发明申请
    Method and Apparatus For Executing Software Applications 有权
    执行软件应用的方法和装置

    公开(公告)号:US20080141232A1

    公开(公告)日:2008-06-12

    申请号:US11884698

    申请日:2006-02-06

    IPC分类号: G06F9/445

    摘要: Consumer electronic devices, such as e.g. high-definition movie players for removable storage media such as optical discs, may provide possibilities for advanced interactivity for the user, implemented as software applications. A question arising generally with such software applications is what the life cycle of such an application is, and who may control it. The invention provides a method for executing software applications within a playback device for audio-video data, wherein data from a first removable storage medium are read for a software application to be executed within said playback device, and the data comprise an indication defining a termination condition for the application. Based on said termination code and depending on how the medium holding the application is ejected, the application is terminated or may survive.

    摘要翻译: 消费电子设备,例如 用于可移动存储介质(例如光盘)的高分辨率电影播放器​​可为用户提供用于软件应用的高级交互性的可能性。 普遍使用这种软件应用程序出现的问题是这样的应用程序的生命周期是什么,谁可以控制它。 本发明提供了一种用于在用于音频 - 视频数据的回放设备内执行软件应用的方法,其中来自第一可移动存储介质的数据被读取以供在所述重放设备内执行的软件应用,并且所述数据包括定义终止 申请条件 基于所述终止代码并且取决于如何弹出保存应用的媒体,应用终止或可能存活。

    Method and Apparatus for Encoding Plural Video Signals as a Single Encoded Video Signal, Method and Apparatus for Decoding Such an Encoded Video Signal
    28.
    发明申请
    Method and Apparatus for Encoding Plural Video Signals as a Single Encoded Video Signal, Method and Apparatus for Decoding Such an Encoded Video Signal 审中-公开
    用于将多个视频信号编码为单个编码视频信号的方法和装置,用于对这样的编码视频信号进行解码的方法和装置

    公开(公告)号:US20080123751A1

    公开(公告)日:2008-05-29

    申请号:US11886179

    申请日:2006-02-27

    IPC分类号: H04N11/02

    CPC分类号: G11B27/034 G11B27/105

    摘要: There are DVD discs that provide a recorded video sequence with different viewing angles. However, because it takes some time to start decoding of an encoded video sequence and the different angle views each relate to corresponding differently encoded video streams, such switching causes a delayed response to a user's angle change request. It is proposed to reduce the original video resolution in favour of fast response time to video angle change requests. The available pixels within a video frame are used to store two or more video signals side by side, each one representing a different viewing angle, but the full picture area video signal is anyway decoded. The selected viewing angle video signal is re-scaled to full-size presentation.

    摘要翻译: 有DVD光盘提供具有不同视角的录像视频序列。 然而,因为开始编码视频序列的解码需要一些时间,并且不同的角度视图各自涉及对应的不同编码的视频流,所以这种切换导致对用户的角度改变请求的延迟响应。 建议减少原始视频分辨率,有利于视频角度变化请求的快速响应时间。 视频帧中的可用像素用于并行存储两个或更多个视频信号,每个视频信号代表不同的视角,但全图像区域视频信号无论如何被解码。 所选择的视角视频信号被重新缩放到全尺寸呈现。