Head selection technique

Details Head selection technique Head selection technique

1979-05-24

1981-05-26

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 721, 360 63, 360137, G11B 5012, G11B 1512

Patent

active

042701546

ABSTRACT:
Method for recording and reading data in a disc storage unit is disclosed. The method includes providing a plurality of stacks of read/write heads mounted about the periphery of the disc pack. An additional feature includes the capability for prepositioning at least one of the stacks while another stack is performing a read or write operation. Also provided is means for simultaneously performing a separate read or write operation with each of at least two of the stacks. By the present invention, disc access time is minimized through a time based selection of an optimally located head.

REFERENCES:
patent: 2519725 (1950-08-01), White
patent: 3772666 (1973-11-01), Scholz et al.
IBM/TDB, vol. 14, No. 7 (Dec. '71), pp. 2206-2207, "High Performance Storage Device" by Evans et al.

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