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    • 2. 发明授权
    • Methods, apparatus, and systems for storing, retrieving and playing multimedia data
    • 用于存储,检索和播放多媒体数据的方法,装置和系统
    • US06725421B1
    • 2004-04-20
    • US09390456
    • 1999-09-07
    • Antoine BoucherPaul E. McRaePeter G. N. Scheyen
    • Antoine BoucherPaul E. McRaePeter G. N. Scheyen
    • G06F1721
    • H04N21/4307G06F17/30017H04N7/17318H04N21/23106H04N21/8543
    • Various embodiments of the invention provide increased speed and decreased computer processing for playing and navigating multimedia content by using two types of data objects for displaying the multimedia content. The first data object type includes rendered multimedia content data for a rendered cache, or rendering instructions for a paint stream cache or a layout cache. The paint stream cache and layout cache can take advantage of increased client processing capabilities. The second data object type provides semantic content corresponding to the rendered multimedia content. The storage medium in which these two types of data objects are contained is referred to as a rendered cache. The semantic content can include locations, sizes, shapes, and target universal resource identifiers of hyperlinks, multimedia element timing, and other content play instructions. The very fast play of content stored in the rendered cache is due to the elimination of the steps of laying out the content, rendering the content, and generating the semantic representation of the content. These steps are required each time the content is played after retrieval from a conventional cache. The only steps required for playing content from the rendered cache are to read the rendered content, read the semantic content, restore the semantic representation, and play the content. The caching mechanism provided by various embodiments of the invention is independent of content file format and the stored semantic content file format.
    • 本发明的各种实施例通过使用用于显示多媒体内容的两种类型的数据对象来提供用于播放和导航多媒体内容的增加的速度和减少的计算机处理。 第一数据对象类型包括用于呈现的缓存的渲染的多媒体内容数据,或者用于绘制流高速缓存或布局高速缓存的呈现指令。 涂料流缓存和布局缓存可以利用增加的客户端处理能力。 第二数据对象类型提供与呈现的多媒体内容相对应的语义内容。 将这两种类型的数据对象包含在其中的存储介质被称为渲染高速缓存。 语义内容可以包括超链接的位置,大小,形状和目标通用资源标识符,多媒体元素定时和其他内容播放指令。 存储在呈现的高速缓存中的内容的快速播放是由于消除了布局内容,呈现内容以及生成内容的语义表示的步骤。 每次从常规缓存检索内容后播放内容都需要这些步骤。 从呈现的缓存中播放内容所需的唯一步骤是读取渲染的内容,读取语义内容,恢复语义表示以及播放内容。 由本发明的各种实施例提供的缓存机制独立于内容文件格式和存储的语义内容文件格式。
    • 10. 发明授权
    • System and methods for preparing multimedia data using digital video data compression
    • 使用数字视频数据压缩制作多媒体数据的系统和方法
    • US06675387B1
    • 2004-01-06
    • US09287235
    • 1999-04-06
    • Antoine BoucherPaul Ernest McRaeTong Qiu
    • Antoine BoucherPaul Ernest McRaeTong Qiu
    • H04N7173
    • H04N19/23H04N19/503
    • Systems and methods are described for preparing multimedia data using digital video data compression. Various embodiments of the invention use pre-rendering and encoding techniques that format the video image data into fat macroblocks. The fat macroblocks include header information that identifies the beginning locations of strips of macroblocks representing slices of the image, and of the macroblocks disposed within the strips. The header information enables macroblocks disposed in a strip of fat macroblocks to be individually addressed thereby providing transmission bandwidth, data processing, and data storage advantages for preparing and transmitting data for updating video images including less than full screen motion. The advantages are achieved in part because updates only require that the first macroblock of each strip of macroblocks be transmitted. Further efficiencies can be realized by using a zero displacement motion vector instead of the actual values of the first macroblock if the first macroblock is not changing. Methods using fat macroblock formatted data sets provide advantages for encoding and transmitting large bitmaps of static content, scrolling the static content, enabling animation of small areas of the display, supporting picture-in picture functionality, and allowing for overlay and combination of different image data from different sources on the display. The methods of preparing the multimedia data include pre-rendering a bitmap to create a compressed form of the bitmap, and determining a viewable area of the video images to be displayed. The viewable area of the video images can be smaller than the full-sized area of the video images.
    • 描述了使用数字视频数据压缩来制备多媒体数据的系统和方法。 本发明的各种实施例使用将视频图像数据格式化成胖宏块的预渲染和编码技术。 脂肪宏块包括标题信息,其标识表示图像的片段的宏块条带的开始位置以及设置在条带内的宏块。 报头信息使得设置在脂肪宏块条中的宏块被单独地寻址,从而提供用于准备和发送用于更新包括小于全屏幕运动的视频图像的数据的传输带宽,数据处理和数据存储优点。 这些优点部分地实现,因为更新仅要求发送每个宏块条带的第一宏块。 如果第一宏块不改变,则可以通过使用零位移运动矢量而不是第一宏块的实际值来实现进一步的效率。 使用脂肪宏块格式的数据集的方法为编码和传输静态内容的大位图,滚动静态内容,实现显示的小区域的动画,支持画中画功能以及允许不同图像数据的叠加和组合提供了优点 来自不同来源的显示。 准备多媒体数据的方法包括预先渲染位图以创建位图的压缩形式,以及确定要显示的视频图像的可视区域。 视频图像的可视区域可以小于视频图像的全尺寸区域。