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:
Nov. 12, 1996
Filed:
Apr. 25, 1994
Applicant:
Inventor:
Ikuo Aoki, Yokohama, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369116 ; 369 54 ; 369 58 ;
Abstract
It is an object of the present invention to reduce a data error ratio in the mark edge recording method. In this invention, a corrected value of a record pulse is set by checking the data recording characteristics of an optically recording medium. For this reason, it is possible to adjust a length of a record mark to a specified value as well as to suppress errors such as data errors when data is regenerated.