H - Electricity – 04 – R
Patent
H - Electricity
04
R
320/1, 328/167,
H04R 3/04 (2006.01)
Patent
CA 1129490
ABSTRACT OF THE DISCLOSURE Disclosed is an improvement in a circuit system for the genera- tion of a direct control voltage dependent upon an alternating voltage for a dynamic compander device, the system including a charging capacitor, a charging circuit connected to charge the capacitor, and a circuit connected to discharge the capacitor. A comparator unit is connected to effect comparison between the alternating voltage and a reference voltage and to produce an output voltage representative of the amount by which the alter- nating voltage exceeds the reference voltage. At least one of the circuits is formed of a current source and an electronically controllable current path connected between the source and the capacitor and having a control input connected to the comparator unit for varying the conductance of the current path as a function of the output voltage of the comparator unit.
338392
Schroder Ernst
Wermuth Jurgen
Fetherstonhaugh & Co.
Licentia Patent-Verwaltungs-Gmbh
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