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。

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It produces an inverted sound wave to cancel out unwanted noise in 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。

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"This random jitter would cause noise in the laser light signal," says Hogan.

“这种随机抖动将导致激光信号的噪音。”霍根说。

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Amalga promised to bring the data together in one place and find the signal in the noise.

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Unless these systems are designed carefully, the transmitted signal can cause noise in the receiver, making it not nearly as sensitive.

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Again, you have to deal with signal issues in high-RF noise environments, deal with materials issues acting as RF shields (like in many computer rooms or anything with lots of metal in it), and you have to balance the convenience with the somewhat-increased security risk.

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