Apparatus and method for performing small scale subtraction

Details Apparatus and method for performing small scale subtraction Apparatus and method for performing small scale subtraction

1993-11-12

1995-06-13

Mai, Tan V.

Boots, shoes, and leggings

G06G 700

Patent

active

054249732

ABSTRACT:
A subtracting circuit which is capable of performing highly accurate, small scale subtraction. The subtracting circuit includes a first input capacitance receiving a first input voltage, a first set of inverters connected with an output terminal of the first input capacitance, a second input capacitance connected with an output terminal of the first set of inverters and receiving a second input voltage, and a second set of inverters connected with an output terminal of the second input capacitance, each set of inverters having capacitive feedback. The subtracting result is output from the second set of inverters.

REFERENCES:
patent: 3745372 (1973-07-01), Koster
patent: 4422155 (1983-12-01), Amir et al.
patent: 5221907 (1993-06-01), Olsen et al.
patent: 5289141 (1994-02-01), Nanni et al.
Iwai, "The Beginning of Logical Circuit", The Electrical Engineering Handbook, 1993, pp. 625-631.

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