Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data verification
Patent
1992-08-31
1994-06-21
Hajec, Donald
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data verification
360 7713, 360 741, G11B 509, G11B 5584, G11B 1548
Patent
active
053232763
ABSTRACT:
An error removal system to be applied to a tape recorder of the type that stores and retrieves data in and from a plurality of tracks of a magnetic tape by means of a magnetic head includes the steps shifting the position of the magnetic head and detecting the center line of the target track from the data being retrieved by the magnetic head so that the magnetic head can be correctly placed on the center line of the target track and the data retrieval operation can be correctly resumed. With such an arrangement, the magnetic head of the data backup tape recorder can effectively and surely regain the target track even if an error is found in the retrieved signal due to an off-track condition. Other errors may be removed by employing a series of microstep adjustments to the magnetic head.
REFERENCES:
patent: 4485418 (1984-11-01), Bremmer
patent: 4516165 (1985-05-01), Cunningham et al.
patent: 4786984 (1988-11-01), Seeman
patent: 4796125 (1989-01-01), Karsh
patent: 4904938 (1990-02-01), O'Reilly et al.
patent: 5008765 (1991-04-01), Youngquist
Hajec Donald
Kim Won Tae C.
Sankyo Seiki Mfg. Co. Ltd.
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