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:
Mar. 12, 2002
Filed:
Oct. 27, 1999
Applicant:
Inventors:
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 1/100 ;
U.S. Cl.
CPC ...
G11B 1/100 ;
Abstract
An optical storage medium processing method where a high power process is conducted upon the power adjusting area of the optical storage medium (which is used to perform optical beam power adjustment) by repeatedly conducting information recording by repeatedly radiating the optical beam at a power that is higher than that used for normal recording or erasing operations. The present invention enables highly reliable high density recording through accurate control of the laser power during the recording operation, in each area of the optical storage medium, regardless of the frequency of write and erase operations performed on each area.