Disk-shaped recording medium and apparatus for recording and/or

Details Disk-shaped recording medium and apparatus for recording and/or Disk-shaped recording medium and apparatus for recording and/or

1989-11-03

1992-03-24

McElheny, Jr., Donald

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4434, 369 4428, 369 48, 369 50, 3692753, G11B 700

Patent

active

050994670

ABSTRACT:
A disk-shaped recording medium has a control record region in each recording region of successive recording tracks and which is divided into a first preformat region, a second preformat region and a focusing servo region arranged in succession in the direction along the respective track and respectively providing traverse data, tracking and clock data, and focusing servo data. An apparatus for reproducing data recorded in the tracks of such disk-shaped recording medium samples a playback output from an optical head scanning a track to detect focusing data from the focusing servo region and tracking data from the second preformat region and, in response thereto, applies focusing servo or tracking servo to the optical head. Further, traverse data is detected in the first preformat region to effect traverse counting of the recording tracks.

REFERENCES:
patent: 4443870 (1984-04-01), Hazel et al.
patent: 4562564 (1985-12-01), Bricot et al.
patent: 4663751 (1987-05-01), Kaku et al.
patent: 4748609 (1988-05-01), Yonezawa et al.
patent: 4912311 (1990-03-01), Hasegawa et al.
patent: 4920462 (1990-04-01), Couse et al.
patent: 4949331 (1990-08-01), Maeda et al.
patent: 4967403 (1990-10-01), Ogawa et al.
patent: 4984901 (1991-01-01), Maury

Affiliated with

Also associated with

Rating

Disk-shaped recording medium and apparatus for recording and/or does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk-shaped recording medium and apparatus for recording and/or , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk-shaped recording medium and apparatus for recording and/or will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2016028