Pre-read learning digital servo-control device

Details Pre-read learning digital servo-control device Pre-read learning digital servo-control device

1996-11-25

1999-05-25

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7809, 360 7807, 360 7806, 318560, B65G 3700

Patent

active

059074507

ABSTRACT:
A pre-read learning digital servo-control device has a digital servo-control device for controlling the speed and/or position of a controlled object. A corrective control input for a (n+1)-th trial for state control is based on errors observed in the n-th trial. The corrective control input is applied at m sample time(s) before the time when a subsequent error is observed, where m is an integer greater than or equal to one for a sampling time of the digital servo-control device.

REFERENCES:
patent: 5164931 (1992-11-01), Yamaguchi et al.
patent: 5550685 (1996-08-01), Drouin
W. Messner et al., "Using Zero Placement and Root Locus Techniques to Design Robust Discrete-Time Repetitive Controllers", 3rd International Workshop on Advanced Motion Control, Mar. 20-23, 1994, pp. 761-770.

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