Disk drive

Details Disk drive Disk drive

1981-04-10

1984-06-05

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 86, 360 98, 360133, G11B 2108

Patent

active

044531885

ABSTRACT:
A floppy disk drive including a pivotally mounted disk pack storing a plurality of floppy diskettes, a driver mechanism for rotating any one of the diskettes into a retrievable position, a picker mechanism for moving the one diskette between the retrievable position and an operative position at which the diskette is rotatable on a spindle, and a position control circuit for controlling the position of a recording head across the one diskette being in the operative position and for compensating for expansion, contraction, and eccentric rotation of the one diskette. The floppy diskettes are stored bent in the disk pack, but in the operative position the one diskette that had been retrieved from the retrievable position is stored only partially in the disk pack and parallel to the plane of rotation. A microprocessor controls the entire disk drive.

REFERENCES:
patent: 4122503 (1978-10-01), Allan
patent: 4170031 (1979-10-01), Beuch et al.
patent: 4195321 (1980-03-01), Chelin et al.
patent: 4301486 (1981-11-01), Brown et al.
Nathanson, et al. Advanced 6 Megabyte Flexible Disk Drive pp. 1-3.

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