The resulting limit, given in units of bits per second, is the absolute maximum rate of error-free communication given signal strength and noise level.
在给定信号强度和噪声水平的情况下，以比特每秒为单位给出的最终限制是无差错通信的最大绝对速率。
2
It produces an inverted sound wave to cancel out unwanted noisein the headphone signal.
随后它便产生逆向声波从而消除耳机信号中不需要的噪声。
3
"This random jitter would cause noisein the laser light signal," says Hogan.