Optical disc with a rewritable area and a read-only area

Details Optical disc with a rewritable area and a read-only area Optical disc with a rewritable area and a read-only area

1997-06-26

1999-07-13

Neyzari, Ali

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692754, G11B 724

Patent

active

059236400

ABSTRACT:
An optical disc having both rewritable area and read-only area is disclosed. The rewritable area has a single spiral pattern of start track land at a leading edge, and a single spiral pattern of end track land at a trailing edge, whereby portions of the physical address area PID deviated approximately Pa/2 from the track of the rewritable area are being intruded into the start track land and the end track land.

REFERENCES:
patent: 4707816 (1987-11-01), Yonezawa et al.
patent: 4748609 (1988-05-01), Yonezawa et al.
patent: 5452284 (1995-09-01), Miyagawa et al.
patent: 5508995 (1996-04-01), Moriya et al.
patent: 5616390 (1997-04-01), Miyagawa et al.
patent: 5648954 (1997-07-01), Satoh
The Japan Society of Applied Physics, "Japanese Journal of Applied Physics", Part 1, Nov. 1993, vol. 32, No. 11B.
Masatoshi Ohtake, et al., "Composite Wobbled Tracking in the Optical Disk System", Dec. 12-13, 1985.

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