Magnetic disk drive with error correction

Details Magnetic disk drive with error correction Magnetic disk drive with error correction

2011-02-08

2011-02-08

Negrón, Daniell L. (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data verification

C360S031000, C360S048000

Reexamination Certificate

active

07885027

ABSTRACT:
Embodiments of the present invention provide a magnetic disk drive in which the error correction capability of ECC is improved without sacrificing the storage capacity. In one embodiment, a data track adopts a format structure in which no data-to-data gap area is formed in data sectors. When one of the data sectors is updated in a state in which the rotational speed of a magnetic disk does not satisfy specified conditions, a leading end area of a succeeding data sector or a trailing end area of a preceding data sector is overwritten by the data sector. If a read error occurs in the overwritten data sector, ERP steps are executed to perform read retry so that the read error is recovered by means of on-the-fly ECC or erasure correction. In the case of the erasure correction, an erasure pointer equivalent to the maximum number of overwritten bytes is set.

REFERENCES:
patent: 6628583 (2003-09-01), Van Den Enden et al.
patent: 2000-187942 (2000-07-01), None
patent: 2001-067605 (2001-03-01), None
patent: 2001-143406 (2001-05-01), None
patent: 2001-273722 (2001-10-01), None
patent: 2001-283532 (2001-10-01), None
patent: 2002-124037 (2002-04-01), None
patent: 2002-532817 (2002-10-01), None
patent: 2003-257124 (2003-09-01), None
patent: 2004-253042 (2004-09-01), None
patent: 2004-342213 (2004-12-01), None
patent: WO 00/34952 (2000-06-01), None

Affiliated with

Also associated with

Rating

Magnetic disk drive with error correction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic disk drive with error correction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic disk drive with error correction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2647041