Video accelerator and method using system RAM
    1.
    发明授权
    Video accelerator and method using system RAM 失效
    视频加速器和使用系统RAM的方法

    公开(公告)号:US5361387A

    公开(公告)日:1994-11-01

    申请号:US595212

    申请日:1990-10-09

    IPC分类号: G09G5/393 G06F15/62

    CPC分类号: G09G5/393

    摘要: A computer video display acceleration system and method is disclosed for increasing the speed with which modifications can be made to video memory. This system and method uses a video buffer section in system memory with high priority access by a central processing unit which can use the buffer space to make changes rapidly in the stored video information. Once the changes are completed, the data stored in the buffer is written as a block of data to video memory without requiring additional video memory read cycles.

    摘要翻译: 公开了一种用于增加可以对视频存储器进行修改的速度的计算机视频显示加速系统和方法。 该系统和方法使用中央处理单元具有高优先级访问的系统存储器中的视频缓冲器部分,其可以使用缓冲器空间在所存储的视频信息中快速地改变。 一旦更改完成,存储在缓冲器中的数据就被写入一个数据块到视频存储器,而不需要额外的视频存储器读取周期。

    Desktop digital video processing system
    3.
    发明授权
    Desktop digital video processing system 失效
    桌面数字视频处理系统

    公开(公告)号:US5682326A

    公开(公告)日:1997-10-28

    申请号:US415854

    申请日:1995-04-03

    摘要: A digital image processing system includes a microprocessor, random access memory, storage memory, input, display, and suitable logic to provide existing digital video image processing operations in a graphical user interface which allows the user to quickly and efficiently edit a movie. The system includes logic for displaying the assembled video and audio media, transitions, and special effects in a series of independent, time-correlated tracks which provide the system operator with a linear view of the movie as well as a quick understanding of the dataflow associated with the processing of the constituents of the movie at any point in time. In one embodiment, the system preserves the dataflow associated with processing a video clip by storing the information associated with that clip in a composite data file which includes not only the digital movie media in a conventional format, but also includes an additional data segment having the appropriate indices to any source clips and image processing effects, including the necessary timing and parameters for reproduction of the resultant clip. The system also preferably includes logic for creating, maintaining and displaying a separate render track which maintains the media corresponding to the portions of the program that have already been rendered in proper synchronization with those portions of the program that have been edited since the last rendering, thereby limiting any future rendering to those portions of the program which require reprocessing since the last rendering of the program of the movie.

    摘要翻译: 数字图像处理系统包括微处理器,随机存取存储器,存储存储器,输入,显示器和合适的逻辑,以在图形用户界面中提供现有的数字视频图像处理操作,其允许用户快速且有效地编辑电影。 该系统包括用于在一系列独立的,时间相关的轨道中显示组合的视频和音频媒体,转换和特殊效果的逻辑,其为系统操作者提供电影的线性视图以及对数据流的快速了解 随时随地处理电影的成分。 在一个实施例中,系统通过将与该剪辑相关联的信息存储在不仅包括常规格式的数字电影媒体的复合数据文件中而保留与处理视频剪辑相关联的数据流,而且还包括具有 任何源剪辑和图像处理效果的适当索引,包括用于再现所得剪辑的必要的时间和参数。 该系统还优选地包括用于创建,维护和显示单独的渲染轨迹的逻辑,其维持对应于已经被渲染的程序部分的媒体与从上一次呈现以来已经被编辑的节目的那些部分保持正确的同步, 从而将任何未来的渲染限制为自电影节目的最后渲染以来需要重新处理的节目的那些部分。