Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2006-03-28
2006-03-28
Miller, Brian E. (Department: 2652)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
Reexamination Certificate
active
07020054
ABSTRACT:
A digital servo system with a biased feed-forward control is disclosed. The biased feed-forward control determines the low frequency component of a control signal from the digital servo system. The low frequency component can then be added to a future control signal to form an adjusted control signal. In some embodiments, the low frequency component is then removed from the future control signals. In some embodiments, a bias signal is incremented or decremented in response to the low frequency component, the bias signal being added to future control signals.
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English Translation of JP 09251646 A.
Kadlec Ron J.
Turner Christopher J.
Watt Charles R.
Agustin Peter Vincent
DPHI Acquisitions, Inc.
Hallman Jonathan
MacPherson Kwok Chen & Heid
Miller Brian E.
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