Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1995-06-16
1997-04-29
Psitos, Aristotelis
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 7708, 332109, G11B 5596
Patent
active
056255080
ABSTRACT:
A method and apparatus are provided for servo demodulation in a direct access storage device. A readback signal is sensed from at least one disk surface and locations of positive and negative peaks in the sensed readback signal are detected for providing a detected peak signal. A square wave signal having a period variable with distance between detected locations of positive and negative peaks is generated using the detected peak signal and applied to a servo demodulator in the direct access storage device.
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TTL Data Book, vol. 2, .COPYRGT.1985, pp. 3-1137-3-1140.
"Abstract of SU1674243, Aug. 30, 1991, Soviet Union".
Brown Dana H.
Ottesen Hal H.
Smith Gordon J.
International Business Machines - Corporation
Pennington Joan
Psitos Aristotelis
Wilson James T.
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