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:
Jun. 24, 2008
Filed:
Jan. 13, 2005
Philippe Piret, Cesson-Sevigne, FR;
Frédéric Lehobey, Rennes, FR;
Philippe Le Bars, Thorigne-Fouillard, FR;
Philippe Piret, Cesson-Sevigne, FR;
Frédéric Lehobey, Rennes, FR;
Philippe Le Bars, Thorigne-Fouillard, FR;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention concerns a method and apparatus of decoding a one-point algebraic geometric code defined on an algebraic curve represented by an equation in X and Z of degree 2in Z, where φ is a strictly positive integer and μ an integer greater than 1, obtained by taking the fiber product of μ component algebraic equations, each of said component equations governing the unknown X and an unknown Y, where i=0, . . . , μ−1, and being of degree 2in Y. This method comprises the decoding of 2'clustered' codes, all defined on the same algebraic curve represented by one of said component equations.