Constant angular velocity type optical disk, double density reco

Details Constant angular velocity type optical disk, double density reco Constant angular velocity type optical disk, double density reco

1993-09-15

1999-06-22

Tran, Thang V.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

3692753, G11B 7095

Patent

active

059149205

ABSTRACT:
There is disclosed a double density recording method for a constant angular velocity type optical disk in which a data information area for recording data information and a servo information area for recording servo control information are provided in recording tracks of the optical disk, pairs of wobble pits for tracking servo control being provided in a staggered form in the servo control area in such a manner that the center axes of the recording tracks are put between the respective pairs of wobble pits, the method being adapted to carry out a subtractive operation of reflected light signals from the respective wobble pits to generate a tracking error signal to thereby conduct a tracking servo control, and to record data information under such a tracking servo control, wherein the respective pair of wobble pits are provided in such a manner that they are shared as wobble pits of adjacent recording tracks, and the wobble pits are provided in a staggered form in a radial direction of the optical disk.

REFERENCES:
patent: 4779253 (1988-10-01), Getreuer et al.
patent: 4967403 (1990-10-01), Ogawa et al.
patent: 4980877 (1990-12-01), Sugiyama
patent: 5063546 (1991-11-01), Ito et al.
patent: 5065382 (1991-11-01), Seko et al.
patent: 5270991 (1993-12-01), Verboom

Affiliated with

Also associated with

Rating

Constant angular velocity type optical disk, double density reco does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Constant angular velocity type optical disk, double density reco, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constant angular velocity type optical disk, double density reco will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1712698