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:
Dec. 30, 2008
Filed:
Apr. 14, 2003
Applicant:
Junko Sasaki, Tokyo, JP;
Inventor:
Junko Sasaki, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data storage device including a non-volatile semiconductor memory and an attribute information storage unit. In an attribute information storage unit of the data storage device, there are stored the number of sectors in one block and the information indicating the logical address of a sector lying at a block boundary. A host device, on which is mounted the data storage device, grasps the number of clusters that make up one block in the data storage device and the location of the leading cluster position of the block and records the data on the block basis.