| 摘要 |
In a telemetering system, a receiver is provided with mark and space channels which are interrelated electronically by applying to the so-called threshold of each channel a control signal that represents an average of the intensities of the mark and space input signals. An advantage of the foregoing circuitry is noise immunity, which results from raising or lowering the thresholds of both frequency channels in response to noise generated at any place in the system.
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