Intelligent hard disk drive subsystem

Details Intelligent hard disk drive subsystem Intelligent hard disk drive subsystem

1985-06-28

1988-04-05

Heckler, Thomas M.

Boots, shoes, and leggings

360 75, G11B 2102

Patent

active

047363410

ABSTRACT:
An intelligent hard disk drive subsystem including control circuitry and disk drive storage media along with drive mechanics in a combination including a standardized interface between the intelligent subsystem and a host computer wherein the data is buffered, serialized, deserialized, conditioned, precompensated, and located within the media, all under the control of a microprocessor within the subsystem. A method of formatting the media is provided which eliminates the need for a track 0 sensing switch, and which provides for formatted guard bands on the disk. The formatting process locates the head through a sequence of writing, indexing, and reading, until a stop is located by the fact that the head reads what it has just written.

REFERENCES:
patent: 3956736 (1976-05-01), Jacques et al.
patent: 4210959 (1980-07-01), Wozniak
patent: 4241420 (1980-12-01), Fish et al.
patent: 4454595 (1984-06-01), Cage
patent: 4509118 (1985-04-01), Shenk
patent: 4589037 (1986-05-01), Jen et al.

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