Patent ID: 6327235
Filing Date: 2001-12-04
Classification: G11B

Abstract:
An optical recording medium recording/reproducing method for processing m-value (m is an integer at least equal to two) digital information data to produce recording data, for recording said recording data on an optical recording medium, for reading said recording data from said optical recording medium, and for processing said read recording data to reproduce said information data as reproduced data, comprising:establishing a relationship expressed by:y1=(k1.multidot.x-k2.multidot.y2- . . . -kn.multidot.yn) mod.mwherek1-kn are integer coefficients;x is information data;y1-yn are recording data; andmod.m represents a modulo-m residue calculation, between said information data x and n (n is an integer at least equal to two) of said recording data y1-yn positioned at intersections of n neighboring tracks within a plurality of tracks arranged at a predetermined track pitch on a recording surface of said optical recording medium with a straight line being perpendicular to said n tracks; andestablishing a relationship expressed by:z=(k1.multidot.y1+k2.multidot.y2+ . . . +kn.multidot.yn) mod.mwhere z is reproduced data,between said reproduced data z and said recording data y1-yn.