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:
May. 11, 2010
Filed:
Mar. 19, 2007
Tetsuya Tamura, Kanagawa, JP;
Hajime Nishimura, Kanagawa, JP;
Takeshi Sasa, Miyagi, JP;
Kazuya Suzuki, Kanagawa, JP;
Tetsuya Tamura, Kanagawa, JP;
Hajime Nishimura, Kanagawa, JP;
Takeshi Sasa, Miyagi, JP;
Kazuya Suzuki, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A data storage apparatus is provided. The data storage apparatus includes: a storage unit managed using a logical block address; a memory; a storage control unit for storing in the storage unit a free area control table transmitted from the host apparatus in which information on a free area in the storage unit is stored; an expanding unit for reading the free area control table in the storage unit and expanding it in the memory; a recording unit for recording data transmitted from the host apparatus into a free area in the storage unit on the basis of the free area control table in the memory; an updating unit for updating the free area control table in the memory after the data recording unit has completed a recording operation; and a transmission unit for transmitting to the host apparatus updated information included in the free area control table which has been updated by the updating unit.