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:
Feb. 09, 1993
Filed:
Apr. 13, 1990
Applicant:
Inventors:
Kunimaro Tanaka, Amagasaki, JP;
Minoru Ozaki, Amagasaki, JP;
Yoshihiro Kiyose, Amagasaki, JP;
Osamu Ito, Amagasaki, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
371 401 ; 371 403 ; 371 402 ; 371 404 ; 360 22 ;
Abstract
An optical recording system which separates and records data on optical disks loaded respectively in a plurality of optical disk drives, check symbol of the data to be recorded being recorded on predetermined disks. Information about bad recording or lost data, which caused by the trouble of the optical disk drive, is memorized, and data to be recorded is reproduced by normally recorded and reproduced data, said check symbol and said information.