Method and apparatus for correcting the loop gain of a servo loo

Details Method and apparatus for correcting the loop gain of a servo loo Method and apparatus for correcting the loop gain of a servo loo

1987-05-26

1989-10-31

Faber, Alan

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 45, 369 54, 360 7703, 318640, 358342, G11B 709

Patent

active

048782114

ABSTRACT:
A servo loop particulary useful for a focusing or tracking servo in an optical disk. The peak-to-peak value of an error signal in the servo loop is detected while the optical pickup is being driven perpendicularly to the disk in focusing or transversely to the disk in tracking. The detected peak-to-peak value is used to adjust the gain of a variable gain amplifier included in the servo loop.

REFERENCES:
patent: 2978647 (1961-04-01), Lehmann
patent: 3430053 (1969-02-01), Westhaver
patent: 3684940 (1972-08-01), Lutz
patent: 3691543 (1972-09-01), Mueller
patent: 3851238 (1974-11-01), Fletcher et al.
patent: 3893180 (1975-07-01), Braun et al.
patent: 3959820 (1976-05-01), Braun
patent: 3994016 (1976-11-01), Moghadam
patent: 4133011 (1979-01-01), Kurzweil, Jr.
patent: 4190859 (1980-02-01), Kinjo
patent: 4338682 (1982-07-01), Hosaka et al.
patent: 4340950 (1982-07-01), Kosaka
patent: 4406000 (1983-09-01), Shoji et al.
patent: 4439800 (1984-03-01), Powell
patent: 4446546 (1984-05-01), Miller
patent: 4475182 (1984-10-01), Hosaka
patent: 4488188 (1984-12-01), Hansen et al.
patent: 4504937 (1985-03-01), Yonezawa et al.
patent: 4546395 (1985-10-01), Sellars
patent: 4551776 (1985-11-01), Roalson
patent: 4564929 (1986-01-01), Yonezawa et al.
patent: 4580255 (1986-04-01), Inoue et al.
patent: 4587644 (1986-05-01), Fujiie
patent: 4594539 (1986-06-01), Michelson
patent: 4613963 (1986-09-01), Hirano
patent: 4616353 (1986-10-01), Kaneda et al.
patent: 4682253 (1987-07-01), Leslie
patent: 4683560 (1987-07-01), Takeuchi et al.
patent: 4700056 (1987-10-01), Silvy et al.
patent: 4707648 (1987-11-01), Minami

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