Optical recording apparatus

Details Optical recording apparatus Optical recording apparatus

1982-08-16

1985-07-30

Faber, Alan

Recorders

Plural recorders

369 46, 250202, 346 76L, 360 77, G11B 700, G11B 2110

Patent

active

045325227

ABSTRACT:
An optical recording apparatus wherein in front and rear of a first light spot for recording predetermined information along a guide groove provided in a recording medium beforehand, two second light spots and two third light spots are arranged along the guide groove and in a manner to mutually deviate from the center of the guide groove; the second light spots are arranged in an area with no information recorded therein, while the third light spots are arranged in an area with the information recorded therein; and the position of the first light spot is controlled on the basis of the difference between the quantities of light of the second light spots and the difference between the quantities of light of the third light spots, so as to track the information.

REFERENCES:
patent: 3767310 (1973-10-01), Dickson
patent: 3876842 (1975-04-01), Bouwhuis
patent: 4037252 (1977-07-01), Janssen
patent: 4133600 (1979-01-01), Russell
patent: 4148549 (1979-04-01), Termanis
patent: 4205338 (1980-05-01), Shaefer
patent: 4298974 (1981-11-01), Tsunoda

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2375679