Servo apparatus with an expanded pull-in range

Details Servo apparatus with an expanded pull-in range Servo apparatus with an expanded pull-in range

1990-07-18

1993-01-05

Chin, Tommy P.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4427, 369 4435, 369124, G11B 700

Patent

active

051777258

ABSTRACT:
A servo apparatus capable of detecting a signal which is approximately equal to a true velocity of a driven system. It is therefore possible to expand a servo pull-in-capable region without expanding a servo band, and to prevent an occurrence of cycle slipping occurring.

REFERENCES:
patent: 4724369 (1988-02-01), Hashimoto
patent: 5048001 (1991-09-01), Moriya et al.

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