Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2006-01-16
2009-08-11
Tzeng, Fred (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
07573668
ABSTRACT:
A slider, flexure finger, head suspension assembly, head gimbal assembly, main flex circuit, actuator assembly, spindle motor, embedded circuit, and hard disk drive using and/or supporting method of estimating flying height of read-write head near rotating disk surface. Method senses leakage current between slider and spindle motor to create potential difference measurement, and converts potential difference measurement to create estimate of flying height. Method controlling flying height using method for estimating by adjusting vertical actuation signal to micro-actuator assembly. The invention includes methods of manufacturing and their products.
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Kwon Hae-sung
Lee Hyung Jai
Sharma Vinod
GSS Law Group
Jennings Earle
Samsung Electronics Co,. Ltd.
Tzeng Fred
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