Optical information recording and reproducing apparatus with vib

Details Optical information recording and reproducing apparatus with vib Optical information recording and reproducing apparatus with vib

1989-01-05

1991-10-22

Envall, Jr., Roy N.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369263, 360 9808, 360 9905, 360107, G11B 700, G11B 2500

Patent

active

050602098

ABSTRACT:
An optical information recording and reproducing apparatus comprising a disc motor rotating a photodisc, a light pickup radiating a light beam to this photodisc and at least recording, reproducing or erasing information, a linear motor moving this light pickup means in the direction crossing the recording and reproducing region of the above mentioned photodisc and a linear servo circuit generating a signal driving the linear motor from the light returning from the photodisc. The linear motor driving controlling system is stabilized by providing within this disc motor a damper member attenuating the vibration of the rotary shaft of the disc motor.

REFERENCES:
patent: 4099210 (1978-07-01), Dolby
patent: 4745588 (1988-05-01), Yoshikawa et al.
patent: 4841517 (1989-06-01), Kurihara et al.
patent: 4890177 (1989-12-01), Katoh et al.

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