Disk-drive write head fault detection

Details Disk-drive write head fault detection Disk-drive write head fault detection

2008-11-10

2010-11-16

Olson, Jason C (Department: 2627)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

C360S068000, C360S046000

Reexamination Certificate

active

07835096

ABSTRACT:
One embodiment of the invention includes a disk-drive write head fault detection system. The system includes an output stage configured to generate a monitored current through the disk-drive write head. The system also includes an open-circuit fault detector configured to compare a magnitude of a first reference current with a magnitude of the monitored current to detect an open-circuit fault condition associated with the disk-drive write head. The system further includes a short-to-ground fault detector configured to compare a magnitude of a second reference current with the magnitude of the monitored current to detect a short-to-ground fault condition associated with the disk-drive write head.

REFERENCES:
patent: 5592097 (1997-01-01), Shimizu et al.
patent: 6424475 (2002-07-01), Bhandari et al.
patent: 6775078 (2004-08-01), Jiang
patent: 6794880 (2004-09-01), Tucker
patent: 6952316 (2005-10-01), Tretter
patent: 7057839 (2006-06-01), Shikuma et al.

Affiliated with

Also associated with

Rating

Disk-drive write head fault detection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk-drive write head fault detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk-drive write head fault detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4251438