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US 7,586,832 B2Granted
Information recording medium, and recording method and reproducing method thereof
AssigneeVictor Company of Japan, Ltd.
InventorYasuhiro Ueki
Life of this patent
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Abstract
An information recording medium in which bottoms of a guide groove and a pit array formed on a disc substrate are allocated on a same flat plane and shaped in flat. Further, in a transition area from a pit array to a guide groove or from a guide groove to a pit array, the information recording medium is provided with an intermediate area composed of a pit array of which height changes from a height between a bottom and a side of a groove to another height between the bottom and a side of the pit array.
Claims10
An information recording medium comprising:
- a first track having a first physical feature that excludes physical shape displacement to be provided on at least one side of said first track and address information on the basis of said physical shape displacement in the radial direction;
- a second track having a second physical feature that includes physical shape displacement in the radial direction and address information on the basis of said physical shape displacement in the radial direction;
- and
- a third track enabling to record ECC blocked data added with an error correction code and having a third physical feature that includes physical shape displacement in the radial direction and address information on the basis of said physical shape displacement in the radial direction.
1 more element
Dependencies are inferred from the claim text.