Other features include pre - and post-alarm image buffering, video motion detection, and two-way audio support.
其他功能包括前后警报图像缓冲，视频动态侦测和双向音频支持。
However, if double buffering technology is used to draw the entire logging curve in the memory and then displays and saves the image, the logging curve can be easily saved as universal image format.
利用双缓冲技术在内存中绘制整幅测井曲线，然后再实现图像显示和保存，能较好地解决上面的问题。
With a dual-port RAM, a novel data transmission structure was designed, and ping-pong technique was used to implement the buffering of the high-speed real-time image data.
借助于单片双口RAM，设计了一种新颖的数据传输结构，并利用乒乓技术实现对实时高速图像数据的缓冲。
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