Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2005-06-28
2009-06-02
Wong, K. (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
07542224
ABSTRACT:
A control method is provided for loading a data transfer head to a data storage medium comprising: determining a desired maximum displacement between a parked position of the head and an encroaching position of the head in relation to a selected data storage track of the medium; determining a spin interval associated with a predetermined quantity of medium movement before the head reaches the encroaching position; rotating the data storage medium at a beginning of the spin interval; and moving the actuator during the spin interval from the parked position and at a velocity resulting in the head being displaced at the end of the spin interval a distance that is less than the maximum displacement. A data storage device is contemplated comprising programmed instructions for performing this method for a predetermined number of loading occurrences, or in relation to observing a threshold data transfer error rate.
REFERENCES:
patent: 5455723 (1995-10-01), Boutaghou et al.
patent: 5475545 (1995-12-01), Hampshire et al.
patent: 6115205 (2000-09-01), Waugh et al.
patent: 6169382 (2001-01-01), McKenzie et al.
patent: 6222696 (2001-04-01), Kim
patent: 6233110 (2001-05-01), Suzuki
patent: 6236527 (2001-05-01), Uchiike et al.
patent: 6271636 (2001-08-01), Galloway
patent: 6449117 (2002-09-01), Waugh
patent: 6570733 (2003-05-01), Waugh et al.
patent: 6590731 (2003-07-01), Pan et al.
patent: 6707634 (2004-03-01), Kagami et al.
patent: 6714377 (2004-03-01), Bement et al.
patent: 6744590 (2004-06-01), Chu et al.
patent: 6876510 (2005-04-01), Heydt et al.
patent: 2002/0067562 (2002-06-01), Kagami et al.
patent: 2004/0179288 (2004-09-01), Kagami et al.
Chandra Sumit
Church Robert Billings
Goodman Rory Stephan
Iskandar Ishak Sugeng
Lim MuChong
Berger Derek J.
Seagate Technology
Wong K.
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