Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2007-04-23
2009-06-16
Sniezek, Andrew L (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
C360S256200, C360S256300
Reexamination Certificate
active
07548391
ABSTRACT:
An apparatus and method for latching an actuator arm assembly can position a read/write head relative to a data storage disk in a disk drive. A latch arm is configured to be moved between a closed position that inhibits movement of an actuator arm assembly in a landing zone and an open position that does not inhibit movement of the actuator arm assembly in the landing zone. A coil is configured to generate an electromagnetic force on the latch arm responsive to a coil current. A bias device is configured to provide a bias force on the latch arm that is substantially opposed to the electromagnetic force from the coil. The latch operating current/voltages is controlled and modified according to environmental conditions such as temperature.
REFERENCES:
patent: 6275357 (2001-08-01), Jang
patent: 6757127 (2004-06-01), Teng et al.
patent: 7203019 (2007-04-01), Liu et al.
patent: 2005/0046992 (2005-03-01), Yeo et al.
Leis Mike
Liu Yanning
Xu Yanchu
Seagate Technology LLC
Shumaker & Sieffert P.A.
Sniezek Andrew L
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