Patent ID: 7800993
Filing Date: 2010-09-21
Classification: G11B

Abstract:
1. A recording method of an optical recording medium corresponding to different recording speeds, comprising: irradiating the medium with a laser having m pulse sets each comprising a heating pulse of a power Pw and a cooling pulse of a power Pc, in which m is a natural number; and scanning the medium with the laser at a scanning speed v to record marks each of a length nT on the medium, in which n is a natural number of 3 or more, T is a clock cycle, and the relation of m<n is satisfied, wherein: a length T where the f 1,n (v) and f 2,n (v) each represents a continuous function of the scanning speed v to satisfy the relation of f 1,n (v 0 )>f 2,n (v 0 ); the f v