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:
Jul. 22, 2008
Filed:
Sep. 29, 2004
Philippe Le Bars, Thorigne-Fouillard, FR;
Philippe Piret, Cesson-Sevigne, FR;
Frédéric Lehobey, Rennes, FR;
Philippe Le Bars, Thorigne-Fouillard, FR;
Philippe Piret, Cesson-Sevigne, FR;
Frédéric Lehobey, Rennes, FR;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention concerns a device () for the encoding of information symbols to transmit or to record, and for the correction of errors among the symbols received or read, according to codes defined over a Galois field F, where q is an integer greater than 2 and equal to a power of a prime number, and in which a set of elements of Fare considered which are denoted y(j), where j=1, . . . , R with 1≦R≦q−1 and l=0, . . . , p−1 with p>1. Said device () comprises a Reed-Solomon encoder (), a Reed-Solomon decoder () and a unit () serving to calculate the inverse of a Vandermonde matrix as well as: