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:
Jul. 31, 2007
Filed:
Oct. 21, 2003
Koubun Sakagami, Kanagawa, JP;
Akihiko Shimizu, Kanagawa, JP;
Koubun Sakagami, Kanagawa, JP;
Akihiko Shimizu, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A multi-level data processing method converts a binary data into a multi-level data having n bits per symbol, where n is an integer satisfying n≧2. A {(n−1)×m}-bit binary data is arranged in upper (n−1) bits of multi-level data of m symbols, where m is an integer satisfying m≧2, and a (m−k)-bit binary data is converted into m bits according to a predetermined conversion rule and arranged in a lower 1 bit of the multi-level data of m symbols, where k is an integer satisfying m>k≧1, so as to convert a (n×m−k)-bit binary data into 1 set of multi-level data made up of m symbols.