Digital servo control system for use in disk drives using driver

Details Digital servo control system for use in disk drives using driver Digital servo control system for use in disk drives using driver

1994-02-25

1997-10-07

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7804, G11B 5596

Patent

active

056754507

ABSTRACT:
A servo control system provides adaptive compensation for a variety of tracking and seek problems found in disk drives. The servo control system is ideally implemented in digital form for accuracy, speed and compactness. A first embodiment includes two modes, a tracking (or position) mode and a seek (or velocity) mode, each mode employing a variety of compensation functions. A second embodiment includes a single comprehensive control system which functions during both tracking and seek operations.

REFERENCES:
patent: 3458785 (1969-07-01), Sordello
patent: 3881184 (1975-04-01), Koepcke et al.
patent: 4057832 (1977-11-01), Kappert
patent: 4133011 (1979-01-01), Kurzweil, Jr.
patent: 4135217 (1979-01-01), Jacques et al.
patent: 4412161 (1983-10-01), Cornaby
patent: 4486797 (1984-12-01), Workman
patent: 4536809 (1985-08-01), Sidman
patent: 4575776 (1986-03-01), Stephens et al.
patent: 4590526 (1986-05-01), Laatt et al.
patent: 4591933 (1986-05-01), Quackenbush
patent: 4616276 (1986-10-01), Workman
patent: 4638383 (1987-01-01), McGinlay et al.
patent: 4679103 (1987-07-01), Workman
patent: 4755977 (1988-07-01), Abed
patent: 4775903 (1988-10-01), Knowles
patent: 4783705 (1988-11-01), Moon et al.
patent: 4788608 (1988-11-01), Tsujisawa
patent: 4803572 (1989-02-01), Haruna et al.
patent: 4823212 (1989-04-01), Knowles et al.
patent: 4835632 (1989-05-01), Shih et al.
patent: 4835633 (1989-05-01), Edel et al.
patent: 4879612 (1989-11-01), Freeze et al.
patent: 4890172 (1989-12-01), Watt et al.
patent: 4907107 (1990-03-01), Sukurai
patent: 4907109 (1990-03-01), Senio
patent: 4914644 (1990-04-01), Chen et al.
patent: 4914725 (1990-04-01), Belser et al.
patent: 4942564 (1990-07-01), Hofer et al.
patent: 4954909 (1990-09-01), Sengoku
patent: 5038333 (1991-08-01), Chow et al.
patent: 5047880 (1991-09-01), Ohno
patent: 5109307 (1992-04-01), Sidman
patent: 5128813 (1992-07-01), Lee
patent: 5182684 (1993-01-01), Thomas et al.
D.H. Pennington et al., "Digital Velocity Reference Curve Anticipator," IBM Technical Disclosure Bulletin, vol. 26, No. 3B, Aug. 1983, pp. 1741 and 1742.
J.P. Mantey, "Offset Force Correction For Disk File," IBM Technical Disclosure Bulletin, vol. 21, No. 5, Oct. 1978, pp. 1792-1794.

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