Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Patent
1997-10-21
2000-06-20
Neyzari, Ali
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
3692751, 369 58, G11B 724
Patent
active
060785594
ABSTRACT:
An optical disk includes a read-only area in which a plurality of read-only tracks are formed and a rewritable area in which a plurality of rewritable tracks are formed, wherein each of the plurality of read-only tracks is divided into a plurality of first sectors, a signal is prerecorded in at least one of the plurality of first sectors under a predetermined reproduction format, each of the plurality of rewritable tracks is divided into a plurality of second sectors, a signal is recordable in at least one of the plurality of second sectors under a predetermined recording format including the predetermined reproduction format, and the read-only area is located on an inner portion of the optical disk, while the rewritable area is located on an outer portion of the optical disk.
REFERENCES:
patent: 5023854 (1991-06-01), Satoh et al.
patent: 5537387 (1996-07-01), Ando et al.
Ishida Takashi
Ohara Shunji
Satoh Isao
Takemura Yoshinari
Matsushita Electric - Industrial Co., Ltd.
Neyzari Ali
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