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. 12, 2008
Filed:
Nov. 21, 2003
Applicants:
Shigenori Yanagi, Kawasaki, JP;
Hiroshi Tani, Kawasaki, JP;
Tetsuya Tsuji, Kawasaki, JP;
Inventors:
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention aims at providing an inexpensive optical information storing device that produces reduced cross talk. An optical information storing device has a cyclic data output circuitthat outputs cyclic data in which values are repeated every 5 bytes, and an EXOR circuitthat calculates the exclusive-OR (EXOR) of recording data input thereto via a bufferand the cyclic data and inputs the calculation result to an RLL modulation circuitas data to be recorded.