Disk drive head positioner with optimized seek operation

Details Disk drive head positioner with optimized seek operation Disk drive head positioner with optimized seek operation

1983-11-28

1986-05-27

Stellar, George G.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 555

Patent

active

045919330

ABSTRACT:
The track access time in a disk drive system is minimized by determining an optimum velocity profile each time the system is operated. The optimum velocity profile is determined by performing repeated seek operations with successively higher velocity profiles until a seek failure occurs. A velocity profile slightly lower than the profile which caused failure is then used to control seek operations. During seek operations, the time between track crossings is monitored and the velocity profile reduced if the transducer of the disk drive system is not adequately following the preset velocity profile.

REFERENCES:
patent: 4030132 (1977-06-01), Iftikar et al.
patent: 4103314 (1978-07-01), Case
patent: 4217612 (1980-08-01), Matla et al.
patent: 4237502 (1980-12-01), Erickson, Jr. et al.
patent: 4314291 (1982-02-01), Oda et al.
patent: 4333117 (1982-06-01), Johnson
patent: 4396959 (1983-08-01), Harrison et al.

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