Dynamic magnetic information storage or retrieval – General processing of a digital signal – Head amplifier circuit
Patent
1992-01-10
1994-06-07
Hajec, Donald
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Head amplifier circuit
360 29, 360 66, G11B 509, G11B 502, G11B 503
Patent
active
053195027
ABSTRACT:
A recorder system provides simultaneous data information and track following servo information from a buried servo layer disposed under a data recording layer in a magnetic medium, using the same transducer for simultaneously reading the servo and data information while writing data. The signals representing data are shaped to provide a wide gap around zero frequency (DC) for inclusion of servo information in the gap, and as a result, segregated data and servo information is read by the recorder through use of filtering techniques.
REFERENCES:
patent: 3404392 (1968-10-01), Sordello
patent: 3585529 (1971-06-01), Darlington
patent: 3765005 (1973-10-01), Cannon
patent: 3821798 (1974-06-01), Cannon
patent: 3864740 (1975-02-01), Sordello et al.
patent: 3956769 (1976-05-01), Beecroft et al.
patent: 4110799 (1978-08-01), Bergmans et al.
patent: 4313140 (1982-01-01), Keidl
patent: 4314289 (1982-02-01), Haynes
patent: 4318141 (1982-03-01), Haynes
patent: 4390911 (1983-06-01), Klaassen
patent: 4414589 (1983-11-01), Oliver et al.
patent: 4488188 (1984-12-01), Hansen et al.
patent: 4547817 (1985-10-01), Klaassen
patent: 4581663 (1986-04-01), Tanaka
patent: 4590524 (1986-05-01), Okamoto et al.
patent: 4766508 (1988-08-01), Mathewson
patent: 4885646 (1989-12-01), Kanota et al.
E. Feig, "Linear Methods for High-Density Magnetic Recording of Data", IEEE Transactions on Magnetics, vol. 25, No. 3, 1989, pp. 2769-2779.
E. Feig, "AC-Bias Magnetic Recording of Data", IBM Technical Disclosure Bulletin, vol. 32, No. 7, Dec. 1989, pp. 286-288.
Hajec Donald
International Business Machines - Corporation
Kim Won Tae C.
LandOfFree
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