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:
Oct. 22, 2002
Filed:
Feb. 18, 2000
Nobuaki Noguchi, Ehime, JP;
Takahiro Watanabe, Ehime, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A data error correction apparatus includes sixteen units of syndrome calculators for calculating syndromes of one code word of an octuple error correcting Reed-Solomon code, and these calculators comprise Galois field adders, flip-flops, and first constant multipliers for calculating elements of Galois field, respectively. Further, some of these syndrome calculators are provided with second constant multipliers for calculating elements of Galois field, and selectors for selecting either the first constant multipliers or the second constant multipliers, thereby realizing syndrome calculators capable of simultaneously processing eight code words of a single error correcting Reed-Solomon code. Therefore, the number!of code words to be processed in parallel in syndrome calculation for an error correcting code having relatively low error-correcting ability is increased by effectively utilizing the syndrome calculators for an error correcting code having relatively high error-correcting ability, whereby high-speed error correction is realized.