Dynamic magnetic information storage or retrieval – Record copying
Patent
1996-11-25
1999-11-16
Sniezek, Andrew L.
Dynamic magnetic information storage or retrieval
Record copying
360 64, G11B 586
Patent
active
059868295
ABSTRACT:
A high speed digital recording and reproducing apparatus fo duplicating of a tape at a speed N-times faster than a speed for a normal speed duplication. The apparatus includes a recording head drum and a reproduction head drum having N-times a diameter and 1/N-times a surrounding angle compared with those of the normal speed duplication, 2N reproduction heads and recording heads which are disposed on the head drums, respectively, a signal processor for processing signals transmitted from the reproduction heads to match the high-speed duplication and supplying the processed signals to said recording heads, and a controller for transferring the source tape and target tape at N-times the normal speed, and controlling the head drums to rotate at the rate which meets the condition: N.times.(drum diameter at the normal speed)/(drum diameter at N-times high-speed duplication).times.(the number of rotation in case of the normal speed). Thus, duplication time and power consumption can be reduced while duplicating multiple tapes.
REFERENCES:
patent: 4866543 (1989-09-01), Cooper et al.
patent: 4888653 (1989-12-01), Cullum
patent: 5083225 (1992-01-01), Morisaki et al.
patent: 5337199 (1994-08-01), Arai et al.
Samsung Electronics Co,. Ltd.
Sniezek Andrew L.
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