Power gated decoding

Details Power gated decoding Power gated decoding

1979-06-01

1982-08-10

Anagnos, Larry N.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307449, 307471, 365230, H03K 19177, H03K 19094, H03K 1921, G11C 700

Patent

active

043440053

ABSTRACT:
A decoder in which the decoding of N input variables to produce 2.sup.N unique outputs is carried out in steps, and in which some of the signals to be decoded also function to power part of the decoding circuitry. First, X of the N variables are decoded separately, as a group, to produce 2.sup.X unique outputs while the remaining N-X variables are also separately decoded, as a group, to produce 2.sup.(N-X) unique outputs, where N and X are positive integers and X is less than N. Then, the outputs of the two groups are logically combined by means of 2.sup.N decoding buffer gates to produce 2.sup.N unique outputs. Each one of the 2.sup.X unique outputs is applied to the signal input terminals of 2.sup.(N-X) different ones of the 2.sup.N buffer gates and each one of the 2.sup.(N-X) unique outputs is used to power 2.sup.X different ones of the 2.sup.N buffer gates to produce 2.sup.N unique outputs of the N input variables, at the outputs of the buffer gates.

REFERENCES:
patent: 3761899 (1973-09-01), McKenny
patent: 3778784 (1973-12-01), Karp et al.
patent: 3906461 (1975-09-01), Cappon
patent: 3980899 (1976-09-01), Shimada et al.
patent: 3986042 (1976-10-01), Padgett et al.
patent: 4194130 (1980-03-01), Moench
patent: 4216390 (1980-08-01), Stewart

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