Optical disk recording and reproducing apparatus with data recor

Details Optical disk recording and reproducing apparatus with data recor Optical disk recording and reproducing apparatus with data recor

1994-06-21

1996-07-16

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 44290, 369 47, G11B 7095

Patent

active

055373739

ABSTRACT:
Data is recorded at a double density on a CLV disk. Sub-spots are shifted by a half track pitch from a main spot. A push-pull signal obtained from the main spot is used as a tracking signal. The polarity of the push-pull signal is changed to perform the tracking control at the groove center or at the land center. While the main spot is controlled to be at the groove center, address information is read from the push-pull signal of the main spot. While the main spot is controlled to be at the land center, address information is read from the push-pull signal of a sub-spot.

REFERENCES:
patent: 4067044 (1978-01-01), Maeda et al.
patent: 5023856 (1991-06-01), Raaymakers et al.
patent: 5339302 (1994-08-01), Takahashi et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1790038