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US 6,788,643 B2Granted
Information recording method and apparatus
AssigneeHitachi, Ltd.
InventorsHarukazu Miyamoto, Hiroyuki Minemura, Yasushi Miyauchi
Life of this patent
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Abstract
A rewritable recording medium having a synchronizing signal portion recorded with a synchronizing signal information and a data portion recorded with data information after the synchronizing signal portion. Each time the synchronizing signal information is rerecorded, a length of the synchronizing signal portion changes and a start position of the synchronizing signal portion changes.
Claims2
A rewritable recording medium, comprising:
- a synchronizing signal portion recorded with synchronizing signal information;
- and
- a data portion recorded with data information after the synchronizing signal portion;
- wherein each time the synchronizing signal information is rerecorded, a length of the synchronizing signal portion changes and a start position of the synchronizing signal portion changes.
1 more element
Dependencies are inferred from the claim text.