Four quadrant analog by digital multiplier

Details Four quadrant analog by digital multiplier Four quadrant analog by digital multiplier

1975-12-04

1977-04-12

Ruggiero, Joseph F.

Registers

Transfer mechanism

Traveling pawl

340347DA, G06J 100

Patent

active

040177203

ABSTRACT:
A four quadrant analog by digital multiplier includes an amplifier gain network in which the digital sign bit controls the polarity of the gain of an amplifier to determine the product of the digital sign and the analog value, and in which the digital magnitude bits control a multiple of resistor steps of a resistance network to determine the product of the digital magnitude and analog value as previously multiplied by the digital sign bit in the amplifier gain network.

REFERENCES:
patent: 2966302 (1960-12-01), Woolf et al.
patent: 3309508 (1967-03-01), Witt
patent: 3469080 (1969-09-01), Schmid et al.
patent: 3484589 (1969-12-01), Jernakoff
patent: 3633005 (1972-01-01), Leighton
patent: 3683165 (1972-08-01), Grobert et al.

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