Track access error correction apparatus for moving an optical he

Details Track access error correction apparatus for moving an optical he Track access error correction apparatus for moving an optical he

1991-06-13

1992-04-07

Envall, Jr., Roy N.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4429, 369 4432, 369 54, G11B 7085

Patent

active

051034409

ABSTRACT:
An optical apparatus for focusing a light beam onto an object having a first track and a second track for guiding the light beam, includes an optical element for directing the light beam onto the object, a detector for detecting the light beam from the object and for generating a tracking-error signal representing a location of the light beam with respect to the first track of the object, and an actuator for moving the optical element from the first track toward the second track. The optical apparatus further includes a generator for generating a track compensating signal corresponding to the distance between the first track and the second track, and an adder for adding the tracking-error signal generated by the detector and the track compensating signal generated by the generator. An adjuster is provided for adjusting the location of the optical element with respect to the second track of the object in response to the signal added by the adder.

REFERENCES:
patent: 4598394 (1986-07-01), Nonaka
patent: 4613963 (1986-09-01), Hirano
patent: 4663750 (1987-05-01), Hamanaka et al.
patent: 4677602 (1987-06-01), Okano et al.
patent: 4698796 (1987-10-01), Kimura
patent: 4703468 (1987-10-01), Baba et al.
patent: 4819219 (1989-04-01), Nagano
patent: 4839876 (1989-06-01), Fennema
patent: 4853918 (1989-08-01), Kobayashi et al.
patent: 4879707 (1989-11-01), Getreuer et al.

Affiliated with

Also associated with

Rating

Track access error correction apparatus for moving an optical he does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Track access error correction apparatus for moving an optical he, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Track access error correction apparatus for moving an optical he will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1900936