Method and apparatus for adaptive feedforward control with reduc

Details Method and apparatus for adaptive feedforward control with reduc Method and apparatus for adaptive feedforward control with reduc

1997-09-02

2000-01-11

Sircus, Brian

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

318606, 318617, 364165, G05B 1300, G05B 501

Patent

active

060139951

ABSTRACT:
An adaptive feedforward control system for reducing noises during a track seek operation. A servo control apparatus of the invention generates a first adaptive feedforward, in which the first adaptive feedforward adaptively follows a current command for servo-controlling the hard disk drive at a servo control decelerating interval for the track seek, and the first adaptive feedforward has a linear slope. Further, a high frequency component is removed from the first adaptive feedforward. Therefore, it may be possible to remove the current control error as well as the noises during the track seek operation.

REFERENCES:
patent: 3662276 (1972-05-01), Hyer
patent: 3883894 (1975-05-01), Johnson
patent: 3940594 (1976-02-01), Bleak et al.
patent: 3961234 (1976-06-01), Chambers et al.
patent: 4471278 (1984-09-01), Matouka
patent: 4509000 (1985-04-01), Ferguson
patent: 4642541 (1987-02-01), El-Sadi
patent: 4697127 (1987-09-01), Stich et al.
patent: 4882526 (1989-11-01), Lino et al.
patent: 4893068 (1990-01-01), Evans, Jr.
patent: 4904912 (1990-02-01), Yamamoto
patent: 5107193 (1992-04-01), Iwashita
patent: 5128812 (1992-07-01), Uno
patent: 5132855 (1992-07-01), Waugh et al.
patent: 5223778 (1993-06-01), Svarovsky et al.
patent: 5235262 (1993-08-01), Takeuchi et al.
patent: 5469414 (1995-11-01), Okamura
patent: 5510939 (1996-04-01), Lewis
patent: 5585976 (1996-12-01), Pham
patent: 5587636 (1996-12-01), Bar-Kana et al.
patent: 5680271 (1997-10-01), Yatsu

Affiliated with

Also associated with

Rating

Method and apparatus for adaptive feedforward control with reduc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for adaptive feedforward control with reduc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for adaptive feedforward control with reduc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1464653