Spindle motor control circuit for optical recording and regenera

Details Spindle motor control circuit for optical recording and regenera Spindle motor control circuit for optical recording and regenera

1992-06-18

1995-05-30

Epps, Georgia Y.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 43, 369 4435, 369 47, 360 3303, G11B 700

Patent

active

054208416

ABSTRACT:
A spindle motor control circuit for an optical recording and regenerating system is disclosed. The spindle motor control circuit adjusts the gains in response to the change of the position of the pickup for controlling the speed of the spindle motor to maintain the pickup at a constant line velocity regardless of the positions of the pickup so that the angular velocity of the spindle motor can have a constant line velocity during the pickup moves by driving the sled motor.

REFERENCES:
patent: 4757489 (1988-07-01), Yamagishi
patent: 5010540 (1991-04-01), Fuji et al.
patent: 5109369 (1992-04-01), Maeda et al.
patent: 5170386 (1992-12-01), Tateishi

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