Title:
MEMORY MANAGEMENT METHOD, PROGRAM FOR MEMORY MANAGEMENT, AND MEMORY MANAGEMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/194063
Kind Code:
A1
Abstract:
The present invention addresses the problem of preventing data omission when data is written into a memory having a data writing speed that changes according to a usage situation at a predetermined bit rate. A memory management device according to one embodiment of the present invention separates a plurality of banks of a memory into visible banks that are recognized by an external device and invisible banks that are not recognized thereby. The memory management device sets one of the visible banks as an active bank, and sets one of the invisible banks that have completed preprocessing for improving data writing speed as a shadow bank. The active bank and the shadow bank share a logical address space and are not distinguished one from the other by the external device. The memory management device performs the preprocessing on the invisible bank while data is written into the shadow bank in response to a data writing request. When the writing of the data into the shadow bank is completed, the memory management device switches the shadow bank to the visible bank and switches the active bank to the invisible bank.
Inventors:
MURASE MASANA (JP)
YONEYA SATOSHI (JP)
TSUCHIYAMA RYOJI (JP)
YONEYA SATOSHI (JP)
TSUCHIYAMA RYOJI (JP)
Application Number:
PCT/JP2014/079826
Publication Date:
December 23, 2015
Filing Date:
November 11, 2014
Export Citation:
Assignee:
FIXSTARS CORP (JP)
International Classes:
G06F12/00; G06F12/06
Foreign References:
| JPH0773690A | 1995-03-17 | |||
| JPH07137696A | 1995-05-30 |
Attorney, Agent or Firm:
ASAHI PATENT FIRM (JP)
Patent business corporation morning-sun patent firm (JP)
Patent business corporation morning-sun patent firm (JP)
Download PDF: