Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
APPARATUS FOR PROLONGING LIFE OF FLASH MEMORY, AND METHOD AND PROGRAM FOR THE SAME
Document Type and Number:
Japanese Patent JP2010079659
Kind Code:
A
Abstract:

To provide a method for prolonging life of a flash memory by using a block continuously which is actually not abnormal even with respect to a block in which a write counter value or read counter value is equal to or larger than a threshold.

The method for prolonging life of the flash memory includes: a copying step of copying data of a block where the write frequency or read frequency is equal to or larger than a prescribed value to a certain block included in a group of spare blocks; an availability step of using a block of a copying party instead of a block of a copied party; and a spare block addition step of adding the block of the copied party to the group of spare blocks.


Inventors:
SATO KOJI
Application Number:
JP2008248143A
Publication Date:
April 08, 2010
Filing Date:
September 26, 2008
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NEC PERSONAL PRODUCTS CO LTD
International Classes:
G06F12/16; G06F12/00; G06F12/02; G11C16/02
Domestic Patent References:
JP2010061507A2010-03-18
JP2008192266A2008-08-21
JPH0869697A1996-03-12
JPH1139221A1999-02-12
Attorney, Agent or Firm:
山下 穣平
永井 道雄