The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 1999
Filed:
Oct. 01, 1996
Minda Zhang, Mesa, AZ (US);
Gregory Bradford Tucker, Tempe, AZ (US);
Brian Roger Mears, Tempe, AZ (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
An improved method and apparatus for generating syndromes in a Reed-Solomon Error Correction Code decoder is disclosed. An encoder that encodes the modified code polynomial and generates a parity polynomial based on said modified code polynomial, is provided. The encoder provides the parity polynomial to a syndrome generator. The syndrome generator based on the parity polynomial generates syndromes that are provided to an error location unit and an error evaluation unit. The error location unit generates intermediate locations of corrupted symbols in a data block based on the syndromes. The error location unit determines the true location of the corrected symbols in a data block based upon the intermediate values by subtracting each intermediate location from a constant M (where M is the total number of generated parity symbols) and performing a modulo operation on the difference with 2.sup.N (where N is the bit-length of the data symbol in the Galois Field). The error evaluation unit, based on the syndromes, generates error values that can be employed to correct corrupted symbols in the data block.