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:
May. 20, 2008
Filed:
Mar. 15, 2005
Applicant:
Koubun Sakagami, Kanagawa, JP;
Inventor:
Koubun Sakagami, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 20/10 (2006.01); G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An information recording method and an information recording apparatus are disclosed, wherein x-bit long binary data are converted into m multi-level data of n levels (x is an integer equal to or greater than 3, m is an integer equal to or greater than 2, and n is an integer equal to or greater than 3). The x-bit long binary data are treated as a word, where two or more words constitute a row of data sequence. Two or more rows of data sequence constitute an error correction block, each row having address information attached. The multi-level data, to which the error correction block is added, are recorded in an information recording medium.