Stray field detector, magnetic disk drive, and method of...

Details Stray field detector, magnetic disk drive, and method of... Stray field detector, magnetic disk drive, and method of...

2007-10-30

2007-10-30

Wellington, Andrea (Department: 2627)

Dynamic magnetic information storage or retrieval

Checking record characteristics or modifying recording...

C360S046000, C360S075000

Reexamination Certificate

active

11195202

ABSTRACT:
Embodiments of the invention prevent demagnetization or degaussing of recorded magnetizations, even if a stray field is applied. In one embodiment, an output of a read head including a magneto-resistive effect element is inputted to a stray field detector through a DC amplifier and a DC filter. The stray field detector monitors dc components of the output from the read head, and escapes a head from above a magnetic recording medium.

REFERENCES:
patent: 6111715 (2000-08-01), Tsuchiya et al.
patent: 7009792 (2006-03-01), Sakai et al.
patent: 2003/0107831 (2003-06-01), Erden et al.
patent: 05-225526 (1993-09-01), None
patent: 07-225901 (1995-08-01), None
patent: 2002-100141 (2002-04-01), None
patent: 2003-272331 (2003-09-01), None

Affiliated with

Also associated with

Rating

Stray field detector, magnetic disk drive, and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stray field detector, magnetic disk drive, and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stray field detector, magnetic disk drive, and method of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3896046