Boots – shoes – and leggings
Patent
1977-06-29
1979-01-16
Smith, Jerry
Boots, shoes, and leggings
G06F 252
Patent
active
041352491
ABSTRACT:
The present invention relates to a multiplication logic for signed multiplication of two numbers to obtain a double precision product in two's complement notation, each quantity being in serial form with the least significant bit first. The multiplier may be in either two's complement, sign magnitude, or unsigned notation, and the multiplicand in two's complement notation. With adjustment of a timing waveform, the multiplication logic will accommodate multiplicands of any word length and also various multiplier word lengths below a design maximum. With shorter multipliers, separate provisions are made for entry of the sign. The logic contains integrated timing responsive to the externally supplied timing waveform, a measure which simplifies application as operands are varied. The multiplication logic is suitable for use in a large number of digital applications including digital filters, correlation, convolution, squaring and polynomial evaluation. In addition to flexibility in the use of a given logic, repetitive cellular design permits larger or smaller logics to be readily produced. The design is suitable for large scale integration.
REFERENCES:
patent: 3407290 (1968-10-01), Atrubin
patent: 3795880 (1974-03-01), Singh et al.
patent: 3947670 (1976-03-01), Irwin et al.
Baker Carl W.
General Electric Company
Lang Richard V.
Neuhauser Frank L.
Smith Jerry
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