Title:
記憶装置
Document Type and Number:
Japanese Patent JP4781373
Kind Code:
B2
Abstract:
The invention provides a storage device sufficiently acting the advantages of the SLC-type flash memory and the MLC-type flash memory. The storage device includes: a binary flash memory that has a first storage area and a capacity of storing two values per each cell; a multivalued flash memory that has a second storage area and a capacity of storing at least three values per each cell; and a controller configured to arrange the first storage area ahead of the second storage area, logically combine the first storage area with the second storage area to form a single combined storage area, and perform data reading and data writing from and into the combined storage area. Data management information is stored in a head of the combined storage area according to a predetermined file system.
Inventors:
Tadashi Arakawa
Application Number:
JP2008004691A
Publication Date:
September 28, 2011
Filing Date:
January 11, 2008
Export Citation:
Assignee:
Buffalo Co., Ltd.
International Classes:
G06F12/16; G06F12/00; G06F12/02; G06K19/07
Domestic Patent References:
| JP11031102A | ||||
| JP2001306393A | ||||
| JP2000173281A | ||||
| JP2006048746A | ||||
| JP10260908A | ||||
| JP11176178A | ||||
| JP2003015942A |
Foreign References:
| WO2006088727A1 | ||||
| WO2006014456A1 | ||||
| WO2007029259A1 | ||||
| WO2006088719A1 | ||||
| US20080086588 |
Attorney, Agent or Firm:
Meisei International Patent Office