Patent ID: 7016282
Filing Date: 2006-03-21
Classification: G11B

Abstract:
1. An information recording method for recording information on an optical disk having a recording layer of phase changing type, in a variable linear velocity so as to correspond the information to an edge of a record mark to be formed when an optical pulse is irradiated on said optical disk, wherein, when a window width at a first linear velocity v wherein the window width is an inverse number of a clock frequency at one of the first linear velocity and the second linear velocity, and wherein for a record mark of a first length, (P2/mTw)−(P1/nTw) equals a first value, and for a record mark of a second length which is shorter than the first length, (P2/mTw)−(P1/nTw) has a second value which is greater than the first value.