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:
Oct. 08, 2013
Filed:
Oct. 18, 2005
Applicants:
Toshiyuki Nishihara, Kanagawa, JP;
Yoshio Sakai, Tokyo, JP;
Inventors:
Toshiyuki Nishihara, Kanagawa, JP;
Yoshio Sakai, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A storage device able to make a redundant write operation of unselected data unnecessary and able to optimize an arrangement of pages to a state having a high efficiency for rewriting, wherein the storage device has a first memory unit, a second memory unit having a different access speed from the first memory, and a control circuit, wherein the control circuit has a function of timely moving the stored data in two ways between the first memory unit and the second memory unit having different access speeds in reading or rewriting.