Thermal asperity detection with long magnet rejection for direct

Details Thermal asperity detection with long magnet rejection for direct Thermal asperity detection with long magnet rejection for direct

1998-10-06

2000-10-24

Kim, W. Chris

Dynamic magnetic information storage or retrieval

Checking record characteristics or modifying recording...

360 46, G11B 502, G11B 509

Patent

active

061376434

ABSTRACT:
A method and apparatus are provided for thermal asperity detection in a direct access storage device. A data signal is received from a data channel in the direct access storage device. A level threshold comparator compares data samples of the data signal with a selected level threshold. Consecutive zero level data samples are detected. Responsive to each identified data sample above the selected level threshold and not an identified consecutive zero level data sample, a counter value is incremented. The counter value is compared with a predefined count threshold. A thermal asperity event is identified responsive to the counter value above the predefined count threshold.

REFERENCES:
patent: 4786890 (1988-11-01), Marcus et al.
patent: 5196849 (1993-03-01), Galbraith
patent: 5233482 (1993-08-01), Galbraith et al.
patent: 5844920 (1998-12-01), Zook et al.
patent: 6018428 (2000-01-01), Okamura
patent: 6038091 (2000-03-01), Reed et al.

Affiliated with

Also associated with

Rating

Thermal asperity detection with long magnet rejection for direct does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermal asperity detection with long magnet rejection for direct, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal asperity detection with long magnet rejection for direct will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1970869