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. 05, 2008
Filed:
Nov. 15, 2006
Hajime Yamagami, Yokohama, JP;
Kouichi Terada, Yokohama, JP;
Yoshihiro Hayashi, Narashino, JP;
Takashi Tsunehiro, Ebina, JP;
Kunihiro Katayama, Yokohama, JP;
Kenichi Kaki, Yokohama, JP;
Takeshi Furuno, Kodaira, JP;
Hajime Yamagami, Yokohama, JP;
Kouichi Terada, Yokohama, JP;
Yoshihiro Hayashi, Narashino, JP;
Takashi Tsunehiro, Ebina, JP;
Kunihiro Katayama, Yokohama, JP;
Kenichi Kaki, Yokohama, JP;
Takeshi Furuno, Kodaira, JP;
Solid State Storage Solutions, LLC, Madison, WI (US);
Abstract
A semiconductor disk wherein a flash memory into which data is rewritten in block unit is employed as a storage medium, the semiconductor disk including a data memory in which file data are stored, a substitutive memory which substitutes for blocks of errors in the data memory, an error memory in which error information of the data memory are stored, and a memory controller which reads data out of, writes data into and erases data from the data memory, the substitutive memory and the error memory. Since the write errors of the flash memory can be remedied, the service life of the semiconductor disk can be increased.