US Patent 7472251 Data storage apparatus detachably mounted to a host apparatus

Patent 7472251 was granted and assigned to Sony on December, 2008 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Sony

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74722510

Patent Inventor Names

Junko Sasaki0

Date of Patent

December 30, 2008

Patent Application Number

104807600

Date Filed

April 14, 2003

Patent Primary Examiner

‌

Gary J Portka

Patent 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.