Dynamic magnetic information storage or retrieval – General recording or reproducing – Signal switching
Patent
1998-03-18
2000-10-31
Kim, W. Chris
Dynamic magnetic information storage or retrieval
General recording or reproducing
Signal switching
360 66, G11B 1512, G11B 503
Patent
active
061411655
ABSTRACT:
An apparatus and method are disclosed for minimizing damage to a disc drive during head switching operations. The disc drive comprises a plurality of magnetic recording surfaces to and from which data are transferred using read/write heads, each head utilizing the application of a bias current during operation. To switch from a presently selected head to a target head, the disc drive determines a first value indicative of the magnitude of a bias current for the presently selected head and a target bias current to be applied to the target head. When the second value is greater than the first value, the disc drive switches from the presently selected head to the target head and then applies the target bias current; conversely, when the first value is greater than the second value, the target bias current is applied to the presently selected head and then the disc drive switches from the presently selected head to the target head.
REFERENCES:
patent: 5719719 (1998-02-01), Tsuyoshi et al.
patent: 5774291 (1998-06-01), Contreras et al.
patent: 5831782 (1998-11-01), Kohno et al.
Goodner, III Clyde Everett
Nguyen Hieu Van
Kim W. Chris
Seagate Technology Inc.
LandOfFree
Head switching sequence in a disc drive employing head bias curr does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Head switching sequence in a disc drive employing head bias curr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head switching sequence in a disc drive employing head bias curr will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2059711