Method and apparatus to determine the log of an element in GF(2.

Details Method and apparatus to determine the log of an element in GF(2. Method and apparatus to determine the log of an element in GF(2.

1991-07-26

1994-05-17

Atkinson, Charles E.

Excavating

G06F 1110

Patent

active

053134745

ABSTRACT:
A system for determining the log of an element in Galois field GF(2.sup.m) using a small, selectable size table, a finite field multiplier, and a counter. The system allows for a flexible trade-off between speed and integrated circuit area, and applies for any GF(2.sup.m) for all possible m. The system allows for on-the-fly error location determination without the need for storing all possible logs for the GF(2.sup.m) under consideration.

REFERENCES:
patent: 4498175 (1985-02-01), Nagumo et al.
patent: 4597083 (1986-06-01), Stenerson
patent: 4769818 (1988-09-01), Mortimer
patent: 4868827 (1989-09-01), Yamada et al.

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