Electronic digital logic circuitry – Function of and – or – nand – nor – or not – Decoding
Patent
1995-11-17
1998-04-21
Westin, Edward P.
Electronic digital logic circuitry
Function of and, or, nand, nor, or not
Decoding
326108, 326121, H03K 19084, H03K 1920
Patent
active
057421870
ABSTRACT:
An improved decoder with a reduced architecture that decodes a plurality of input signals that include a least significant input signal. The decoder comprises at least one pair of adjacent logic gates, each of the at least one pair of logic gates receiving at least one logic input signal that is selected from a group of logic signals that include the input signals to the decoder and the inverse of the input signals to the decoder. The logic input signals received by the at least one pair of adjacent logic gates are common to both adjacent logic gates of the pair, except for those logic signals representing the least significant decoder input signal and the inverse of the least significant decoder signal.
REFERENCES:
patent: 3439185 (1969-04-01), Gibson
patent: 3539823 (1970-11-01), Zuk
patent: 3851186 (1974-11-01), Koo
patent: 3904888 (1975-09-01), Griffin et al.
patent: 4866305 (1989-09-01), Hasegawa
patent: 5309043 (1994-05-01), Murahashi
Morris James H.
Roseen Richard
SGS--Thomson Microelectronics S.r.l.
Westin Edward P.
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