Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1987-03-13
1989-03-28
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360 9906, 360133, G11B 5016, G11B 1702
Patent
active
048169447
ABSTRACT:
A recording and/or reproducing apparatus arranged to use a disc-shaped record bearing medium having an engaging portion which is provided with an engaging hole, including a rotating spindle having a flange and engageable with the hole at the engaging portion of the medium, a recording and/or reproducing head, a moving mechanism for moving the head relative to the medium, a pressing member for pressing the engaging portion of the medium against the flange of the spindle, and a control system responsive to the moving mechanism for causing the pressing member to operate and thereafter disabling the pressing member when the moving mechanism moves the head from a reset position to a predetermined position.
REFERENCES:
patent: 3480282 (1969-11-01), Mindell et al.
patent: 4170031 (1979-10-01), Beuch et al.
patent: 4315289 (1982-02-01), Holocek et al.
patent: 4453188 (1984-06-01), Johnson et al.
patent: 4466033 (1984-08-01), Jordan et al.
patent: 4498161 (1985-02-01), Eisemann
patent: 4498165 (1985-02-01), Wilkinson
patent: 4523240 (1985-06-01), Dunstan et al.
patent: 4536813 (1985-08-01), Saito
Canon Kabushiki Kaisha
Wolff John H.
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