The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 1992
Filed:
Jul. 09, 1991
Applicant:
Inventor:
Hidekazu Tominaga, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 4426 ; 369 4428 ; 369 4432 ;
Abstract
In an apparatus using an optical recording medium having a plurality of parallel tracks and a region which indicates tracking control provided in part of the longitudinal direction of each track, information is recorded and/or reproduced by scanning the tracks with a light beam, and a track jumping device transfers the light beam from the presently scanned track to another track when the light beam is not scanning such region.