Disk drive method and apparatus

Details Disk drive method and apparatus Disk drive method and apparatus

1989-12-22

1992-02-11

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7804, G11B 555, G11B 5596

Patent

active

050879960

ABSTRACT:
A disk drive has a side-zero and a side-one analog and digital circuits. The disk drive may write both sides of the disk at the same time and then verify both sides at the same time. A microcontroller is connected to the side-zero and side-one digital circuits. The microcontroller receives the sensor index pulse from the index sensor and then sends a microcontroller index pulse to the side-zero and side-one digital circuits a predetermined period of time after receiving the sensor index pulse. The predetermined period of time is such that after the head is stepped to the next track and achieves a stable position, writing will begin.

REFERENCES:
patent: 4633343 (1986-12-01), Maury

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