Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2007-02-16
2009-12-29
Wong, K. (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
C360S048000, C360S075000
Reexamination Certificate
active
07639448
ABSTRACT:
A magnetic storage media includes a magnetic first-pole polarity initialized servo track segment and a magnetic second-pole polarity differential timing based servo pattern recorded on the magnetic first-pole polarity initialized servo track segment The magnetic second-pole polarity differential timing based servo pattern represents magnetic encoded servo position information for facilitating a determination of a servo position error signal exclusive of a plurality of fixed position error timing components and inclusive of a plurality of variable position error timing components.
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US Application entitled “Differential Timing Based Servo Pattern For Magnetic-Based Storage Media”, U.S. Appl. No. 12/239,673, filed Sep. 26, 2008, by inventors D. Winarski, N. Haustein and C. A. Klein.
US Application entitled “Differential Timing Based Servo Pattern For Magnetic-Based Storage Media”, U.S. Appl. No. 12/239,680, filed Sep. 26, 2008, by inventors D. Winarski, N. Haustein and C. A. Klein.
Haustein Nils
Klein Craig A.
Winarski Daniel J.
International Business Machines - Corporation
Konrad Raynes & Victor LLP
Victor David W.
Wong K.
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