US 7,257,057 B2 · Information recording apparatus and information recording method

Abstract

An information recording medium is provided that includes a data area for recording user data and a defect management area for recording a defect list for managing N number of defect areas existing in the data area, where N is an integer satisfying N≧0. The defect list includes two or more blocks, and further includes a header located at a fixed position in the defect list and N number of defect entries, located subsequent to the header, including position information on the respective positions of the N number of defect areas. An anchor is located subsequent to the defect entries, and the header includes first update times information representing the number of times that the defect list has been updated. The anchor includes second update times information representing the number of times that the defect list has been updated.

Claims18

Dependent claims

An information recording apparatus for recording information to an optical disk on which a data area for recording user data and a defect management area for recording a defect list for managing N number of defect areas existing in the data area, where N is an integer satisfying N≧0, are allocated;

the information recording apparatus including:
a defect list recording portion for recording the defect list, the defect list recording unit comprising:
a portion for recording a header located at a fixed position in the defect list;
a portion for recording N number of defect entries, located subsequent to the header, including position information on the respective positions of the N number of defect areas;
and
a portion for recording an anchor located subsequent to the defect entries,
wherein the header includes first update times information representing the number of times which the defect list has been updated, and wherein the anchor includes an anchor identifier for identifying the anchor of the defect list and second update times information representing the number of times which the defect list has been updated.

4 more elements

An information recording method for recording information to an optical disk on which a data area for recording user data and a defect management area for recording a defect list for managing N number of defect areas existing in the data area, where N is an integer satisfying N≧0, are allocated;

the information recording method including:
a defect list recording step of recording the defect list, the defect list recording step comprising:
recording a header located at a fixed position in the defect list;
recording N number of defect entries, located subsequent to the header, including position information on the respective positions of the N number of defect areas;
and
recording an anchor located subsequent to the defect entries,
wherein the header includes first update times information representing the number of times which the defect list has been updated, and wherein the anchor includes an anchor identifier for identifying the anchor of the defect list and second update times information representing the number of times which the defect list has been updated.

4 more elements

Dependencies are inferred from the claim text.

Information recording apparatus and information recording method

Life of this patent

Information recording apparatus and information recording method

Life of this patent

Abstract

Claims18