本文分析了公用通信网中非话音信号传输的特点，提出并实现了万门话路非话信号检测系统的研制方案。
The features of non-voice signals on public communication nets are analysed and an approach to distinguish such signals is introduced in this paper.
这个课题的研究人员们相信，在这个区域内简短的突发性电子活动“睡眠梭形波”，在用某种方式阻挡了外界声音信号传输到大脑中某些能让人醒过来的某些区域。
The researchers believe that brief bursts of electrical activity in this area, called "sleep spindles", somehow block external sounds form reaching any parts of the brain that might wake a person up.
在每个频道中，组合视频信号被当作调幅（AM）信号传输，声音信号作为FM（调频）信号传输。
The composite video signal is transmitted as an AM signal and the sound as an FM signal on these channels.
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