Video Frame Memory AL422B and It s Application;
视频帧存储器AL422B及其应用
The Philips SAA7111A IC is used to gather the digital video signal and save the data into the frame memory under the control of CPLD and SCM.
利用PHILIPS公司的视频处理芯片SAA7111A作为图像采集芯片,在单片机和CPLD的控制下将采集到的图像数据写入帧存储器中供后续DSP对视频数据进行分析处理;针对汽车防撞系统对实时性的要求,帧存储器的设计采用两级级联的形式,达到了采集和数据处理的并行运行。
This paper describes the design for the frame memory as the high speed buffer between the TV and microcomputer.
视频信号数字处理中帧存储器是必需的,其特点是容量大,读写速率高。
This paper introduces a digital processing system applied in a 4×4 video wall system with two frame memories,focusing the operational principle and design of the video wall system.
分析了4×4二帧存储器组合投影电视墙的数字处理系统,并着重讨论了各部分工作原理和设计要
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