Optical disk driving apparatus

Details Optical disk driving apparatus Optical disk driving apparatus

1991-05-23

1993-08-31

Pascal, Robert J.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 54, 369 58, 360 53, G11B 1722

Patent

active

052415210

ABSTRACT:
In an optical disk driving apparatus using an optical disk, a sector address in a set address sequence is sequentially provided in a pre-format in an address recognizing section of each sector. The driving apparatus has a reader for reading the sector address provided in the pre-format out of the optical disk; an error detector for detecting an error in sector address read by the reader; and a device for setting a value of the read sector address as sector address data when there is no error in the read sector address. The setting device sets a value of the next sector address as the sector address data on the basis of the set address sequence from data of a sector address just before the read sector address when there is the error in the read sector address. The driving apparatus is constructed such that data are written and read out of the optical disk based on the sector address data. The error detector judges the relation between the sector address read in the present sector and a sector address read in a sector located before the present sector by one or plural sectors, and detects the error in sector address by conformity and nonconformity between this relation and the set address sequence.

REFERENCES:
patent: 5132956 (1992-07-01), Ichikawa
patent: 5142515 (1992-08-01), McFerrin et al.

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