IP Library Granted Patent US 7,349,318
Granted Patent B2
US 7,349,318 · App. 11/176,364 · Granted Mar 25, 2008

Information recording method, information recording medium and information recording apparatus

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Quick Facts
Patent No.
US 7,349,318
App. No.
11/176,364
Granted
Mar 25, 2008
Kind
B2
Abstract

An information recording apparatus using an optical recording medium includes a light source to irradiate a light beam to the optical recording medium and a pulse former for forming a plurality of recording pulses of the light beam. A leading edge of a first recording pulse of the recording pulses shifts at a shifting value, and the shifting value is determined by a combination of a length of M(n) of a mark being currently written and a length s(n−1) of a space precedent to the mark.

Claims (6)

1. An information recording apparatus using an optical recording medium comprising:

a light source to irradiate a light beam to the optical recording medium; and

means for forming a plurality of recording pulses of the light beam including information to be recorded;

wherein a leading edge of a first recording pulse of the plurality of recording pulses shifts at a shifting value; and

wherein the shifting value of the leading edge of the first recording pulse of the plurality of recording pulses is determined by a combination of a length of M(n) of a mark within one of the plurality of recording pulses being currently written and a length S(n−1) of a space precedent to the mark.

2. An information recording apparatus according to claim 1 , wherein the shifting value has been stored in advance within the optical recording medium in a lookup table storing information on the shifting value.