Signal processing arrangement

Details Signal processing arrangement Signal processing arrangement

1983-04-18

1985-04-23

Rubinson, Gene Z.

Electricity: power supply or regulation systems

Remote sensing

323316, 179 16F, H04M 1900

Patent

active

045131783

ABSTRACT:
The invention relates to a signal processing arrangement which in a preferred form is part of a telephone speech circuit.
The circuit arrangement includes an operational amplifier for processing signals coupled to an input terminal via a capacitor. In order to control output current provided by the arrangement a current is coupled to the input terminal of the amplifier which is fed with the signals to be amplified and an equal and opposite current is fed to the opposite side of the capacitor so that the effects of any unwanted A.C. components in the control current may be reduced.
The use of the circuit allows a single capacitor to perform multiple functions thereby reducing the number of capacitors and the number of terminal pins of an integrated circuit package incorporating the circuit.
The invention is particularly suitable for use in a telephone speech circuit.

REFERENCES:
patent: 4414434 (1983-11-01), Ferrieu et al.

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