Optical disk recording apparatus

  • US 6,504,806 B1
  • Filed: 03/28/2000
  • Issued: 01/07/2003
  • Est. Priority Date: 03/30/1999
  • Status: Expired due to Term
First Claim
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1. An optical disk recording apparatus capable of recording information onto an optical disk in a variable recording speed increase ratio, said optical disk recording apparatus recording the information by irradiating a recording laser light beam onto a recording surface of the optical disk with the recording laser light beam set to a top power level for each pit-forming period and to a bottom power level for each land-forming period between pit-forming periods to thereby form pits and lands on the optical disk based on a mark-length recording scheme,said optical disk recording apparatus comprising a control section which performs control to impart a top-power increasing pulse to part of a top power irradiation period of the recording laser light beam to temporarily increase the top power level thereof and also performs, for pits of a same length, control to decrease a ratio, to a unit pit length, of a width of the top-power increasing pulse as the recording speed increase ratio is raised.

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