Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1989-02-14
1991-07-02
Envall, Jr., Roy N.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369124, 369 4429, G11B 700
Patent
active
050291513
ABSTRACT:
An optical information processing apparatus includes a scanning device for scanning an information track on an optical recording medium by a focused light spot, a moving device for moving the light spot in the direction of an optical axis of the scanning device and/or in a direction which is perpendicular to the optical axis with respect to the information track, a detecting device for detecting focusing and/or tracking error signals of the light spot with respect to the information track, a control device for returning the detected error signal to the moving device, a limiting device for electrically limiting a range of movement of the light spot, and an adjusting device for adjusting the range of movement of the light spot which is limited by the control device in accordance with a sensitivity of the moving device.
REFERENCES:
patent: 4561080 (1985-12-01), Yomazaki
patent: 4805163 (1989-03-01), Ohntiki
patent: 4853917 (1989-08-01), Koyama et al.
patent: 4860271 (1989-08-01), Yokogawa et al.
patent: 4888756 (1989-12-01), Shikichi et al.
patent: 4974221 (1990-11-01), Hosuya et al.
Canon Kabushiki Kaisha
Envall Jr. Roy N.
Tran Phang V.
LandOfFree
Optical information processing apparatus including a limiter for does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical information processing apparatus including a limiter for, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical information processing apparatus including a limiter for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1253200