1
Elliott William S: Automatic control for amplitude-modulated signal source. Collins Radio Company, May 9, 1972: US3662290 (32 worldwide citation)

An automatic level control maintains an accurate output level measurement under conditions of high modulation index by developing a control signal proportional to the deviation of output level from a desired norm. Output level is determined as a function of the time that the modulation envelope ther ...


2
Elliott William S, Palmer Ronald F, Pool Robert H: Test spectrum recognition circuit for communication link analyzer. Collins Radio Company, November 2, 1971: US3617656 (2 worldwide citation)

In a communication link analyzer including a test signal generator for generating a frequency spectrum and a signal analysis unit for receiving said spectrum through a communication link, a signal recognition circuit is provided to recognize the presence of said spectrum. Tone channels and noise sam ...


3
Strelioff William P, Elliott William S, Johnson Dale L: Dispositif de surveillance en continu de la perte cerealiere, Grain loss monitor. Senstek, July 1, 1980: CA1080843

ABSTRACT OF THE INVENTION A percentage of the grain lost is sampled constantlyby sensors at locations across the rear of the sieve of a com-bine and the sound of the grain kernels striking the sensorsis picked up by a microphone, amplified, filtered and fed toa ratio computing device which calculate ...