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US 6,163,521 AGranted
Disk having read-only and read-write areas
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsShinichi Konishi, Fumiaki Ueno
Life of this patent
Estimating the term…
Abstract
A disk of the present invention includes a first storage area for reproducing data and a second storage area for recording and reproducing data, the number of sectors in each track in the first and second storage areas close to each other is larger in the first storage area than in the second storage area, and leading edges of sectors in each track in the first storage area are aligned in at least one line in a radius direction.
Claims14
A disk comprising:
- a read-only storage area for reproducing data;
- and
- a read-write storage area for recording and reproducing data, the read-write storage area being close to the read-only storage area,
- wherein the number of sectors in each track of the read-only storage area and the read-write storage area close to each other is larger in the read-only storage area than in the read-write storage area, and
- leading edges of the sectors in each track of the read-only storage area are aligned in at least one line.
2 more elements
A disk comprising:
- a read-only storage area for reproducing data;
- and
- a read-write storage area for recording and reproducing data,
- wherein the read-write storage area is divided into a plurality of zones, and the number of sectors in each zone on an inner side of the disk is smaller than on an outer side, and
- leading edges of sectors in each track in the read-only storage area are radially arranged.
2 more elements
Dependencies are inferred from the claim text.