Logic design slide rule

Details Logic design slide rule Logic design slide rule

1988-11-14

1991-02-19

Fuller, Benjamin R.

Registers

Calculators

Bar

235 70R, 235 85R, G06C 2700

Patent

active

049946560

ABSTRACT:
A logic design slide rule comprises, in a preferred embodiment, front and rear cover plates coupled together; interior slide channels formed between the covers; and a plurality of slides disposed between the covers and able to move horizontally from left to right within the channels. The slides may be moved to display indicia on beams for observation through a single column of truth-table windows and to display corresponding indicia printed on interior slide plates for observation through an array or grid of K-map windows, which column and grid of windows are located in the front cover of the slide rule. Indicia are also displayed through a set of output variable slots, preferably in the rear cover. Operation of the preferred slide rule will aid the designer to obtain a minimum set of combinational logic functions for up to four input variable from a given truth-table.

REFERENCES:
patent: 1892634 (1932-12-01), Rubinsky
patent: 1961053 (1934-05-01), Kubler
patent: 2530047 (1950-11-01), Dewar
patent: 2530423 (1950-11-01), Carson
patent: 2585595 (1952-02-01), Spencer
patent: 2610792 (1952-09-01), Kaufman
patent: 2657610 (1953-11-01), Carran, Jr.
patent: 2832539 (1958-04-01), Blakeley et al.
patent: 3779454 (1973-12-01), Koren
patent: 4056359 (1977-11-01), Janin
patent: 4425499 (1984-01-01), Newton

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