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1. 发明公开

EP0744731A2 Method and apparatus for synchronizing video and graphics data in a multimedia display system including a shared frame buffer 失效
标题翻译：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。

2. 发明授权

EP0744731B1 Method and apparatus for synchronizing video and graphics data in a multimedia display system including a shared frame buffer 失效
标题翻译：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：EP0744731B1
公开(公告)日：1999-11-03
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

3. 发明公开

EP0744731A3 Method and apparatus for synchronizing video and graphics data in a multimedia display system including a shared frame buffer 失效
标题翻译：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.

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