Information recording/reproducing apparatus for recording inform

Details Information recording/reproducing apparatus for recording inform Information recording/reproducing apparatus for recording inform

1990-10-24

1992-11-03

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data verification

360 31, 369 53, G11B 509, G11B 2736, G11B 390

Patent

active

051610728

ABSTRACT:
An information recording/reproducing apparatus having a function to verify recorded information. A controller of the apparatus divides information to be recorded into two or more portions so that the first division portion is successively recorded over a first group of a plurality of blocks formed circumferentially on a disc-like recording medium and then reproduced for verification, before the second division portion is successively recorded over a second group of blocks which are consecutive to the first group of blocks and then reproduced for the verification, the recording and reproduction being continuously effected up to the last division portion. When verifying the first division portion through the penultimate division portion, only the final group of one or more blocks of the blocks of the just recorded division portion are not verified immediately but, after the recording for a subsequent division portion, verified together with the blocks of the subsequent division portion other than final group of one or more blocks of the subsequently recorded division portion. All blocks of the last division portion reproduced for verification are verified together with previously recorded and non-verified blocks from other division portions.

REFERENCES:
patent: 3550103 (1970-12-01), Cogar
patent: 4611314 (1986-09-01), Ogata et al.
patent: 4637023 (1987-01-01), Lounsbury et al.

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