Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1988-01-26
1989-06-20
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 554
Patent
active
048413976
ABSTRACT:
In a recording or reproducing apparatus which changes the recording or reproducing position thereof from one position to another by shifting a recording or reproducing head in the radial direction of a disc-shaped flexible recording medium, a head shifting device is arranged to bring the head into contact with the recording medium only when the head is in the recording or reproducing position in relation to the shift of the head; and to have the head retracted from the recording medium when the head is in other positions. This device effectively prevents the recording medium from being deformed or damaged on its recording surface, for example, when the head is left in contact with the medium over a long period of time while the medium is in repose.
REFERENCES:
patent: 4092681 (1978-05-01), Dix et al.
patent: 4241366 (1980-12-01), Nishida
patent: 4302789 (1981-11-01), Vos
patent: 4423499 (1983-12-01), Peschel
patent: 4603364 (1986-07-01), Tronzano
Canon Kabushiki Kaisha
Heinz A. J.
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