Optical recording and reproducing apparatus having a pickup head

Details Optical recording and reproducing apparatus having a pickup head Optical recording and reproducing apparatus having a pickup head

1990-03-27

1994-05-17

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4412, 369 4423, 369 4428, 369112, G11B 712

Patent

active

053134419

ABSTRACT:
An optical recording and reproducing apparatus for optically recording and reproducing information on and from a disk includes a light source for generating a parallel beam. A movable optical system condenses the parallel beam from the light source on the disk, splits the beam into two different beams, and moves in the radial direction of the disk. A split-beam detecting device has two light receiving surfaces which receive part of the two different beams obtained in the movable optical system. A and a control device effects tracking control by moving the movable optical system in the radial direction of the disk in accordance with respective detection signals output from the two light receiving surfaces.

REFERENCES:
patent: 4363961 (1982-12-01), Okada et al.
patent: 4489408 (1984-12-01), Verhoeven et al.
patent: 4592627 (1986-06-01), Smid
patent: 4716283 (1987-12-01), Ando
patent: 4718052 (1988-01-01), Kondo et al.
patent: 4730899 (1988-03-01), Kime et al.
patent: 4835752 (1989-03-01), Nakatsu et al.
patent: 4841507 (1989-06-01), Imai et al.
patent: 4855987 (1989-08-01), Versluis
patent: 5060212 (1991-10-01), Fujita et al.
patent: 5095476 (1992-03-01), Greve et al.

Affiliated with

Also associated with

Rating

Optical recording and reproducing apparatus having a pickup head 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 recording and reproducing apparatus having a pickup head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical recording and reproducing apparatus having a pickup head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-882749