Disk drive and disk drive control method

Details Disk drive and disk drive control method Disk drive and disk drive control method

2005-09-27

2005-09-27

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S077060, C360S078090

Reexamination Certificate

active

06950271

ABSTRACT:
A position detector generates a position error signal corresponding to a current position of a head, a position controller generates a position control signal from the position error signal, a voltage detector detects a voltage signal generated when driving an actuator by a driver, a disturbance estimator generates a disturbance estimation signal from a driving signal and the voltage signal, and a corrector outputs the driving signal from the disturbance estimation signal and the position control signal. The disturbance estimator includes a comparator which compares the disturbance estimation signal with a voltage signal and which outputs a deviation signal, and an adder which adds a signal obtained by multiplying an integral signal, which is obtained by integrating the deviation signal, by a first coefficient and a signal obtained by multiplying a proportional signal proportional to the deviation signal by a second coefficient, and which generates the disturbance estimation signal. The disturbance estimation signal suppresses a tracking deviation of the head due to a disturbance such as an inertial force applied to the head actuator and stabilizes head positioning control.

REFERENCES:
patent: 5684650 (1997-11-01), Kadlec et al.
patent: 9-231701 (1997-09-01), None

Affiliated with

Also associated with

Rating

Disk drive and disk drive control method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk drive and disk drive control method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk drive and disk drive control method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3394122