Multiplication control system

Details Multiplication control system Multiplication control system

1977-12-28

1979-11-06

Smith, Jerry

Boots, shoes, and leggings

G06F 752

Patent

active

041737890

ABSTRACT:
A multiplication control system comprising a multiplying circuit to which a binary-coded multiplier and a binary-coded multiplicand are supplied, a leading 0/1 decoder which detects the number of significant digits in the binary-coded multiplier, a divider which divides the detected decoder output by a predetermined number, a selector into which an external constant is entered, a recursive control counter to which an output of the selector is supplied, an arithmetic unit which calculates the difference of outputs from said divider and said counter, a zero detector which detects the content "zero " of said recursive control counter, a shift circuit to which a product of said multiplying circuit controlled by the zero detector output is transmitted, and a multiplier which multiplies the output of said divider by a predetermined number and supplies the result to said shifter.

REFERENCES:
patent: 3192363 (1965-06-01), MacSorley
patent: 3366780 (1968-01-01), Lee et al.
patent: 3730425 (1973-05-01), Kindell et al.

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