Disc storage system with adaptive PID control

Details Disc storage system with adaptive PID control Disc storage system with adaptive PID control

2008-05-13

2008-05-13

Sniezek, Andrew L. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S078040, C318S561000

Reexamination Certificate

active

09767546

ABSTRACT:
A disc drive controller circuit for an actuator receives reference data indicating a desired actuator position “θd”, error data indicating a difference “e” between the desired actuator position and a sensed actuator position “θ”, and adaptive parameter data “”. The controller circuit calculates a circuit output “u” that drives the actuator. The controller circuit derives the circuit output “u” according to a formula:A^⁡(θ¨d+2⁢⁢λ⁢⁢e.+λ2⁢e)+k⁡(e.+2⁢⁢λ⁢⁢e+λ2⁢∫0t⁢e⁢⁢ⅆτ)in which “λ” is a controller zero value and “k” is a controller gain value and “t” is time. The adaptive parameter  is updated in general accordance with the formula:in-line-formulae description="In-line Formulae" end="lead"?Â(k)=e1e2Δt+Â(k−1).in-line-formulae description="In-line Formulae" end="tail"?

REFERENCES:
patent: 4697127 (1987-09-01), Stich et al.
patent: 5101472 (1992-03-01), Repperger
patent: 5132855 (1992-07-01), Waugh et al.
patent: 5150266 (1992-09-01), Albert
patent: 5155422 (1992-10-01), Sidman et al.
patent: 5189571 (1993-02-01), Murphy et al.
patent: 5369345 (1994-11-01), Phan et al.
patent: 5828515 (1998-10-01), Kim
patent: 5847895 (1998-12-01), Romano et al.
patent: 5875162 (1999-02-01), Baba
patent: 5898286 (1999-04-01), Clare et al.
patent: 5917672 (1999-06-01), Pham et al.
patent: 5936792 (1999-08-01), Kobayashi et al.
patent: 5956201 (1999-09-01), Pham et al.
patent: 6013995 (2000-01-01), Kim
patent: 6052252 (2000-04-01), Kim
patent: 6583964 (2003-06-01), Huang et al.

Affiliated with

Also associated with

Rating

Disc storage system with adaptive PID control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disc storage system with adaptive PID control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disc storage system with adaptive PID control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3946481