Hard disk drive enabling efficient use of storage capacity of a

Details Hard disk drive enabling efficient use of storage capacity of a Hard disk drive enabling efficient use of storage capacity of a

1993-02-02

1999-05-11

Hajec, Donald

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data verification

360 48, G11B05/09

Patent

active

059034050

ABSTRACT:
Receiving a track address, an ECC selection signal generation circuit generates a selection signal. In accordance with the selection signal, a read/write circuit selects the number of bits of an ECC to be added to data. Typically, a plurality of numbers of bits are assigned to respective groups of tracks such that the number of bits becomes smaller as the group of tracks is closer to the outermost track.

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patent: 4979054 (1990-12-01), McCullough et al.
patent: 5063453 (1991-11-01), Yoshimura et al.
patent: 5148328 (1992-09-01), Kakuyama

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