Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1992-12-31
1994-08-30
Shepperd, John
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 7806, G11B 5596
Patent
active
053433408
ABSTRACT:
Apparatus and method are provided for servo signal demodulation using a servo processor and a partial-response maximum-likelihood (PRML) data channel in a disk file. A servo burst timing window is identified. Then a plurality of digital samples are detected with the PRML data channel responsive to identifying the servo burst timing window. Sequential sets of the detected digital samples are accumulated by the PRML data channel and transmitted to the servo processor. The digital samples are processed by the servo processor for providing servo phase information that is used to provide servo position information.
REFERENCES:
patent: 3534344 (1970-10-01), Santana
patent: 3691543 (1972-09-01), Mueller
patent: 4488189 (1984-12-01), Axmeon et al.
patent: 4530019 (1985-07-01), Penniman
patent: 4549232 (1985-10-01), Axmeon et al.
patent: 4737869 (1988-04-01), Sugaya et al.
patent: 4786890 (1988-11-01), Marcus et al.
patent: 4853915 (1989-08-01), Takasago et al.
patent: 5021894 (1991-06-01), Naito et al.
patent: 5027230 (1991-06-01), Nakayama
patent: 5099367 (1992-03-01), Sideman
patent: 5136439 (1992-08-01), Weisfenning et al.
patent: 5170299 (1992-12-01), Moon
patent: 5182682 (1993-01-01), Weisfenning et al.
patent: 5220466 (1993-06-01), Coker et al.
Mueller, F. E., "Digital Demodulator for Quad-Burst Position Error Signal", IBM Technical Disclosure Bulletin, vol. 31, No. 9, Feb. 1989, pp. 159-160.
Boutaghou Zine-Eddine
Brown Dana H.
Erickson Kevin J.
Greenberg Richard
Billion Richard E.
Garnett Pryor A.
International Business Machines - Corporation
Minh Le Thien
Pennington Joan
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