本文介绍一种接口电路,采用时域压缩方法使电视静止图象(此图象可再标准的视频处理系统拾取或用软件人工合成)的显示速度达到大约每秒500帧。视频信号的时域压缩可分二步实现,首先数字化的时频信号送入视频存储器的记忆缓冲器,即记忆装置。在完成了计算机辅助的输入周期后,则设备转向自动的读出方式,此时视频存贮器(?)以每秒8 This article describes an interface circuit that uses a time-domain compression method to achieve a display speed of about 500 frames per second for still images (picked up by a standard video processing system or artificially synthesized by software). The time-domain compression of the video signal can be realized in two steps. First, the digitized time-frequency signal is sent to the memory buffer of the video memory, that is, the memory device. After the computer-aided input cycle has been completed, the device is switched to automatic readout mode where video memory (?) Is clocked at 8