Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1995-01-30
1997-06-10
Psitos, A.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
360 722, 360 741, 360 742, 360 744, 360 75, G11B 1522
Patent
active
056382294
ABSTRACT:
A method for setting an information reader to a target information recorded position on an information recording medium in an information reproducing apparatus includes steps of reading a start position from the medium by the reader, which contacts the medium, separating the reader from the medium after reading the current position, driving the medium after separating the reader from the medium, successively estimating a current read position based on the start position and a driving motion during the driving step, checking whether the estimated current read position matches a target position, contacting the reader with the medium and reading position information when the estimated current read position matches the target position, comparing the position represented by the read position information with the target position and driving the medium, contacting the reader, while reading the position information when a mismatch is detected, and comparing the position represented by the newly read position information with the target position and continuing to drive the medium until a match is detected by the comparison.
REFERENCES:
patent: 4210940 (1980-07-01), Prysby et al.
patent: 4855977 (1989-08-01), Getreuer et al.
patent: 4890171 (1989-12-01), Nagao
patent: 5179479 (1993-01-01), Ahn
Arisaka Katsumi
Nishida Hideyuki
Shingu Toshiaki
Yoshinari Tsunenori
Canon Kabushiki Kaisha
Psitos A.
Wilson James T.
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