Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1998-03-25
2000-05-09
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360109, G11B 555
Patent
active
060612088
ABSTRACT:
A head positioning mechanism for a magnetic disc device includes a support spring having one end portion that supports a magnetic head, and the other end portion at which a rotating shaft is disposed. A carriage has one end portion that pivotally supports the rotating shaft of the support spring, and another end portion that is connected to a rotary actuator, to position the magnetic head to a predetermined position on the magnetic disc in cooperation with the carriage and the support spring. A stopper is provided on the carriage, and restricts a rotatable range of the support spring on the carriage. A positioning control at a head precision seek is facilitated as a result.
REFERENCES:
patent: 5448436 (1995-09-01), Albrecht
patent: 5521778 (1996-05-01), Boutaghou
Fan et al., "Magnetic Recording Head Positioning At Very High TrackDensities Using A Microactuator-Based, Two-Stage Servo System", IEEE Transactions on Industrial Electronics, vol. 42(3):222-233, (1995).
Koganezawa et al., "Flexural Piggyback Actuator For Magnetic Disk Drives", pp. 29-30, (1996).
Heinz A. J.
NEC Corporation
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