Amplifiers – Signal feedback – Combined with control of bias voltage of signal amplifier
Patent
1975-01-24
1976-07-13
Gensler, Paul L.
Amplifiers
Signal feedback
Combined with control of bias voltage of signal amplifier
179 1P, 330 85, 330136, 333 14, H03G 700
Patent
active
039696804
ABSTRACT:
In a circuit for the automatic dynamic compression or expansion of a signal between its input and its output, the circuit presenting a useful signal path connected between its input and its output and containing a setting member which is electronically controllable for varying the transmission factor between the circuit input and output, the circuit also presenting a branch path connected at one point to the useful signal path and containing a control voltage generator for generating, from the signal in the useful signal path, a control voltage applied to control the setting member, there is also provided a second setting member connected in the branch path and arranged to be electronically controllable for varying the transmission factor exhibited by the branch path, and means connecting the output of the control voltage generator to the second setting member for effecting a counterregulation of the transmission factor of the branch path, relative to the transmission factor variation imparted to the useful signal path.
REFERENCES:
patent: 3496468 (1970-02-01), Kaneko et al.
patent: 3720880 (1973-03-01), Le Seigneur
patent: 3795876 (1974-03-01), Takahashi et al.
Gensler Paul L.
LICENTIA Patent-Verwaltungs-G.m.b.H.
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