Header-formatted defective sector management system

Details Header-formatted defective sector management system Header-formatted defective sector management system

1997-10-31

2000-08-01

Tu, Trinh L.

Error detection/correction and fault detection/recovery

Pulse or data error handling

Replacement of memory spare location, portion, or segment

714718, 360 25, G11C 2900, G11C 700

Patent

active

060981857

ABSTRACT:
A method and data structure for a header-formatted defective sector management system. A spare sector is allocated for each n sectors. When a defective one of the n sectors is identified, the sectors are slipped using the spare sector. The location of the defective sector and the type of defect, e.g., data field or header field, is indicated by a data structure written to the header field of at least one of the non-defective sectors. When a second defective sector is identified, the system operates to disposition the second defective sector based on the type of the first defective sector. If the first defective sector was a defect in the data field and the second defective sector is a defect in the header field then the first defective sector is converted to a reassigned sector and the second defective sector is slipped. This avoids the problem of reassigning a sector having a defective header field.

REFERENCES:
patent: 3771143 (1973-11-01), Taylor
patent: 4914529 (1990-04-01), Bonker
patent: 5036408 (1991-07-01), Leis et al.
patent: 5235585 (1993-08-01), Bish et al.
patent: 5848438 (1998-12-01), Nemazie et al.

Affiliated with

Also associated with

Rating

Header-formatted defective sector management system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Header-formatted defective sector management system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Header-formatted defective sector management system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-674538