Signal envelope detecting system

摘要

A plurality of amplitude detectors are employed to detect the envelope of a signal requiring accurate reproduction over a large dynamic range with each of the plurality of detectors being rendered operative one at a time to detect the amplitude of the signal in a different amplitude range of the signal and the others of the detectors not being rendered operative are held inoperative. The output signal of the plurality of detectors when they are rendered operative are coupled to a combining point.