Optical disk recording apparatus controllable by table of multi-pulse patterns

  • US 20040145985A1
  • Filed: 07/24/2003
  • Published: 07/29/2004
  • Est. Priority Date: 07/25/2002
  • Status: Active Grant
First Claim
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1. An optical disk recording apparatus for forming pits on a recording surface of an optical disk of a given type at a given recording speed by applying a laser light in the form of a sequence of multiple pulses obtained by intermittently turning on and off the laser light according to a given multi-pulse pattern, the apparatus comprising:

  • a write strategy circuit that is set with a pattern table and controls the turning on and off of the laser light according to a multi-pulse pattern selected from the pattern table in correspondence to a length of the pit to be formed;

    a storage section that stores a plurality of pattern tables of different kinds, each pattern table containing a plurality of multi-pulse patterns corresponding to a plurality of lengths of the pit; and

    a control section that selects one of the pattern tables based on either one or both of the recording speed and the type of the optical disk, and that reads out the selected pattern table from the storage section and sets the read pattern table in the write strategy circuit.

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