Magnetic disk drive apparatus including improved decoding circui

Details Magnetic disk drive apparatus including improved decoding circui Magnetic disk drive apparatus including improved decoding circui

1993-11-24

1995-01-03

Hajec, Donald

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Address coding

360 51, 360 61, G11B 509, G11B 1512

Patent

active

053791606

ABSTRACT:
A magnetic disk drive apparatus can reduce the production probability of failed sector due to the fact the a decoding start synchronization mark can not be detected in reproduction of data on a magnetic disk and can utilizes the capability of an error correction circuit sufficiently. A plurality of decoding start synchronization marks are provided in each sector of the magnetic disk and when any one of the decoding start synchronization marks can be detected, a decoding circuit can be operated.

REFERENCES:
patent: 3387293 (1968-06-01), Stockebrand
patent: 4757406 (1988-07-01), Stewart et al.
patent: 4788685 (1988-11-01), Sako et al.
patent: 4805046 (1989-02-01), Kuroki et al.
patent: 5047877 (1991-09-01), Herting

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