Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1981-10-30
1984-02-28
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307492, 328145, G06G 726, G06G 724
Patent
active
044343809
ABSTRACT:
An improved multiplier circuit of the type including an input operational amplifier and a gain cell is disclosed. The gain cell is connected to the amplifier such that a first signal can be generated in response to and as a logarithmic function of an input signal, a control signal can be added to the first signal and a second signal can be algebraically generated as an antilogarithmic function of the algebraic sum of the first and control signals. The improvement includes means for providing a correcting signal as a function of the control signal at the output of the input amplifier substantially equal and opposite to signals produced at the output of the input amplifier by changes in the control signal.
REFERENCES:
patent: 3532868 (1970-10-01), Embley
patent: 3714462 (1973-01-01), Blackmen
patent: 4234804 (1980-11-01), Bergstrom
patent: 4341962 (1982-07-01), Buff
Davis B. P.
DBX Inc.
Miller Stanley D.
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