Compound Galois field engine and Galois field divider and square root engine and method
US7895253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2003 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | May 16, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2207/5523
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A Galois field divider engine and method inputs a 1 and a first Galois field element to a Galois field reciprocal generator to obtain an output, multiplies in the Galois field reciprocal generator the first Galois field element by the output of the Galois field reciprocal generator for predicting the modulo remainder of the square of the polynomial product of an irreducible polynomial m−2 times to obtain the reciprocal of the first Galois field element, and multiplies the reciprocal element by a second Galois field element for predicting the quotient of the two Galois field elements in m cycles; in a broader sense the invention includes a compound Galois field engine for performing a succession of Galois field linear transforms on a succession of polynomial inputs to obtain an ultimate output where each input except the first is the output of the previous Galois field linear transform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.