Circuit for changing a periodic intelligence signal into a direc

Details Circuit for changing a periodic intelligence signal into a direc Circuit for changing a periodic intelligence signal into a direc

1986-11-10

1988-03-22

LaRoche, Eugene R.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

7386117, G01F 160

Patent

active

047331917

ABSTRACT:
The circuit comprises two scanning/holding circuits (SH1, SH2), one of which (SH1) scanning the input signal during the positive half-wave, and the other (SH2) scanning the input signal during the negative halfwave. The output signals (U.sub.4, U.sub.5) of the scanning/holding circuits are summed up in a summing device (A) and are fed back to the input of the second amplifier (V.sub.2) which receives the intelligence signal. By this feedback of the summed anti-phase direct current signals (U.sub.4, U.sub.5), overlaid momentary and stationary disturbance voltages are reduced, whereas the intelligence signal is amplified by the full gain (.mu.) of the second amplifier (V.sub.2).

REFERENCES:
patent: 4157035 (1979-06-01), Doll et al.

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