Magnetic recording and reproducing apparatus

Details Magnetic recording and reproducing apparatus Magnetic recording and reproducing apparatus

1990-12-26

1993-08-03

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Pulse crowding correction

360 51, G11B 509

Patent

active

052334813

ABSTRACT:
To prevent a decrease in the window margin due to reproduced signals having asymmetrical waveforms in a magnetic recording and reproducing apparatus, data in which peak shifts occur are recorded in the SYNC regions in the data format for the recording medium in accordance with the recording method. In data read operation, by detecting the data recorded in the SYNC regions, the center of the data window signal is shifted by a desired peak shift amount.

REFERENCES:
patent: 4845575 (1989-07-01), Wahler
patent: 4845576 (1989-07-01), Kusunoki et al.
patent: 5036408 (1991-07-01), Leis et al.
Imamura et al., "Barium Ferrite Perpendicular Recording Floppy Disk", Toshiba Review, No. 154, pp. 18-22, Winter 1985.
Steve Brittenham, "Time Domain Characterization of Thin Film Head/Media Systems", IEEE Transactions on Magnetics, vol. 24, No. 6, Nov. 1988.

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