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    Device for scaling real-time image frames in multi-media workstations
    1.
    发明公开
    Device for scaling real-time image frames in multi-media workstations 失效
    用于在多媒体工作站中缩放实时图像帧的设备

    公开(公告)号：EP0653742A2

    公开(公告)日：1995-05-17

    申请号：EP94480107.5

    申请日：1994-10-26

    申请人： International Business Machines Corporation

    发明人： Dwin, David Ronny ,  Lee, William Robert ,  Nuechterlein, David William ,  Pennisi, Joseph Michael ,  Yosim, Paul Stewart

    IPC分类号： G09G5/00

    CPC分类号： G09G5/00 ,  G06T3/40 ,  G09G2340/125 ,  H04N9/641

    摘要： An adapter for use in a multi-media workstation includes a device (24) which accepts real-time video information at a first size, reduces the size to a selected one of a plurality of available sizes and places the reduced real-time video information into a selected area of the video memory (18) of a computer graphic display device (22). Thereafter, the scaled real-time video information is displayed with other computer graphics applications, in a sub-window of the screen of the display device.

    摘要翻译： 用于多媒体工作站的适配器包括接收第一尺寸的实时视频信息的设备（24），将尺寸缩小到多个可用尺寸中的选定尺寸并将缩小的实时视频信息 进入计算机图形显示设备（22）的视频存储器（18）的选定区域。 之后，缩放的实时视频信息与其他计算机图形应用一起显示在显示设备的屏幕的子窗口中。

    Method and apparatus for synchronizing video and graphics data in a multimedia display system including a shared frame buffer
    3.
    发明公开
    Method and apparatus for synchronizing video and graphics data in a multimedia display system including a shared frame buffer 失效
    一种用于具有共享的帧缓冲器同步在多媒体显示系统的视频数据和图形数据的方法及装置

    公开(公告)号：EP0744731A3

    公开(公告)日：1998-01-14

    申请号：EP96480044.5

    申请日：1996-04-23

    申请人： International Business Machines Corporation

    发明人： Lee, William Robert ,  Rumph, Darryl Jonathan

    IPC分类号： G09G5/12

    CPC分类号： G09G5/12 ,  G09G2340/125 ,  H04N5/073 ,  H04N9/641 ,  Y10S715/972

    摘要： A multimedia display system includes a central processing unit, a storage device associated with the central processing unit, a standard interface bus to which the central processing unit and the storage device are connected, a graphics processor connected to the bus for generating graphics data in response to commands from the central processor, a digitizer for converting an analog video signal to digital form and for producing synchronization signals, a video processor for processing the digitized video data to produce pixel representations of the digitized video signal, a shared frame buffer for storing the graphics data generated by the graphics processor and the pixel representations of the video signal, a device for converting the stored digital data to a data stream appropriate for driving a video monitor, and a video monitor for displaying the graphics data and the video information, wherein the video processor generates a programmable variable phase vertical synchronization signal for synchronizing video data and graphics data through a shared frame buffer with the capacity to handle relocatable windows.

    Method and apparatus for synchronizing video and graphics data in a multimedia display system including a shared frame buffer
    4.
    发明公开
    Method and apparatus for synchronizing video and graphics data in a multimedia display system including a shared frame buffer 失效
    一种用于具有共享的帧缓冲器同步在多媒体显示系统的视频数据和图形数据的方法及装置

    公开(公告)号：EP0744731A2

    公开(公告)日：1996-11-27

    申请号：EP96480044.5

    申请日：1996-04-23

    申请人： International Business Machines Corporation

    发明人： Lee, William Robert ,  Rumph, Darryl Jonathan

    IPC分类号： G09G5/12

    CPC分类号： G09G5/12 ,  G09G2340/125 ,  H04N5/073 ,  H04N9/641 ,  Y10S715/972

    摘要： A multimedia display system includes a central processing unit, a storage device associated with the central processing unit, a standard interface bus to which the central processing unit and the storage device are connected, a graphics processor connected to the bus for generating graphics data in response to commands from the central processor, a digitizer for converting an analog video signal to digital form and for producing synchronization signals, a video processor for processing the digitized video data to produce pixel representations of the digitized video signal, a shared frame buffer for storing the graphics data generated by the graphics processor and the pixel representations of the video signal, a device for converting the stored digital data to a data stream appropriate for driving a video monitor, and a video monitor for displaying the graphics data and the video information, wherein the video processor generates a programmable variable phase vertical synchronization signal for synchronizing video data and graphics data through a shared frame buffer with the capacity to handle relocatable windows.

    摘要翻译： 一种多媒体显示系统包括一个中央处理单元，与中央处理单元相关联的存储装置中，一个标准的接口总线，这里中央处理单元和所述存储装置被连接时，连接到总线，用于响应产生的图形数据的图形处理器 到从中央处理器，用于转换到模拟视频信号为数字形式和用于产生同步信号，用于处理数字化的视频数据以产生数字化的视频信号，用于存储所述的共享的帧缓冲器的像素表示视频处理器的数字转换器的命令 由图形处理器和所述视频信号的像素表示，对于所存储的数字数据转换为一个数据流的适当用于驱动视频显示器的装置，以及用于显示的图形数据的视频监视器和视频信息，worin生成的图形数据 视频处理器基因速率的可编程可变相位垂直同步SI gnal用于通过共享的帧缓冲器与处理可重定位窗口容量同步的视频数据和图形数据。