Preamplifier arranged in proximity of disk drive head

Details Preamplifier arranged in proximity of disk drive head Preamplifier arranged in proximity of disk drive head

2005-12-06

2005-12-06

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

C360S067000, C360S068000, C327S108000, C327S110000

Reexamination Certificate

active

06972916

ABSTRACT:
A magnetic storage system includes a preamplifier writer that selectively drives a write current through a write head to write data to a magnetic storage medium. The write current generated by the preamplifier writer has a boost stage and a settling stage. An impedance changing circuit communicates with the preamplifier writer and the write head and provides a lower resistance value during the boost stage and a higher resistance value during the settling stage.

REFERENCES:
patent: 5822141 (1998-10-01), Chung et al.
patent: 5869988 (1999-02-01), Jusuf et al.
patent: 5880626 (1999-03-01), Dean
patent: 5939940 (1999-08-01), Patti
patent: 6040954 (2000-03-01), Tanghe
patent: 6107873 (2000-08-01), Lorenz
patent: 6175463 (2001-01-01), Nayebi et al.
patent: 6185057 (2001-02-01), Masenas
patent: 6285221 (2001-09-01), Leighton et al.
patent: 6307695 (2001-10-01), Bhandari
patent: 6496317 (2002-12-01), Lacombe
patent: 6665135 (2003-12-01), Kim et al.
patent: 6798597 (2004-09-01), Aram et al.
patent: 6831800 (2004-12-01), Ranmuthu

Affiliated with

Also associated with

Rating

Preamplifier arranged in proximity of disk drive head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preamplifier arranged in proximity of disk drive head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preamplifier arranged in proximity of disk drive head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3508778