Bi staple flying height detection by BEMF control profile...

Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C360S060000, C360S075000, C360S053000

Reexamination Certificate

active

07079337

ABSTRACT:
Embodiments of the present invention relate to detecting a flying high state in which a head/slider is flying stably at a high flying position, and then to restore the head/slider to a normal flying position. The detection is made by detecting a read output of a head using a head output detector, and by detecting a gain of a VGA using a gain detector. A control unit uses a value measured in a normal flying state as a reference value to compare a detected value with the reference value. If the compared values differ from each other, the control unit judges that a flying high state has occurred. The control unit, therefore, moves the head/slider to the vicinity of the innermost circumferential track of the disk, or unloads the head/slider.

REFERENCES:
patent: 6094318 (2000-07-01), Kim
patent: 6618215 (2003-09-01), Fung et al.
patent: 2001/0013985 (2001-08-01), Baba et al.
patent: 2004/0136105 (2004-07-01), Ma et al.
patent: 2005/0185312 (2005-08-01), Ueda et al.
patent: 07045022 (1995-02-01), None
patent: 2000-132933 (2000-05-01), None
patent: 2001-229637 (2001-08-01), None
patent: 2002-100139 (2002-04-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Bi staple flying height detection by BEMF control profile... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bi staple flying height detection by BEMF control profile..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bi staple flying height detection by BEMF control profile... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3548188

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.