Unlock instant, AI-driven research and patent intelligence for your innovation.

Information processing apparatus

a technology of information processing and equipment, applied in the field of storage devices, can solve the problems of shortening the life of nand type flash memory, unable to carry out the operation of hdd, and time-consuming operation

Active Publication Date: 2015-11-17
BUFFALO CORP LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]According to the present disclosure, there is provided an information processing apparatus including a NAND type flash memory; circuitry configured to control writing / reading of data to / from the NAND type flash memory; and an interface configured to connect the information processing apparatus to a host apparatus. The circuitry is configured to determine whether to erase data stored in a specific area within the NAND type flash memory by overwriting the data based on whether an overwrite command is received from the host apparatus via the interface; and erase a physical block including the specific area when it is determined to erase the data by removing electric charges in the NAND type flash memory in the physical block including the specific area.

Problems solved by technology

Thus, since it may be impossible for the NAND type flash memory to carry out a direct overwriting operation, there is required a time-consuming operation for writing the data to be overwritten to a block in which the scan data is stored after an erasing operation has been carried out for the block.
As a result, it is possible that the operation described above is repetitively carried out, thereby shortening the life of the NAND type flash memory.
Generally, the HDD cannot carry out the operation for collectively erasing the data in the specific area.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030]FIG. 1 is a block diagram showing a schematic configuration when a storage device according to a first disclosure is applied to a Solid State Drive (SSD) device. FIG. 2 is a functional block diagram explaining a function of the SSD device according to the first disclosure.

(Schematic Configuration of SSD Device)

[0031]In FIGS. 1 and 2, reference numeral 10 designates the SSD device according to the first disclosure. The SSD device 10 includes a controller 11, a Random Access Memory (RAM) 12, a Read Only Memory (ROM) 13, and a flash memory 14. The SSD device 10 according to the first disclosure is connected to a host apparatus 20 which, for example, is composed of a Multi-Function Printer (MFP). Thus, the SSD device 10 stores therein predetermined data in accordance with a write instruction given from the host apparatus 20, and sends predetermined data stored therein in accordance with a read instruction.

[0032]The controller 11 controls the entire SSD device 10. The controller 11...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An information processing apparatus including a NAND type flash memory; circuitry configured to control writing / reading of data to / from the NAND type flash memory; and an interface configured to connect the information processing apparatus to a host apparatus. The circuitry is configured to determine whether to erase data stored in a specific area within the NAND type flash memory by overwriting the data based on whether an overwrite command is received from the host apparatus via the interface; and erase a physical block including the specific area when it is determined to erase the data by removing electric charges in the NAND type flash memory in the physical block including the specific area.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]The present application claims priority to Japanese Patent Application No. 2012-144642 filed on Jun. 27, 2012, the disclosure of which is hereby incorporated by reference in its entirety.BACKGROUND OF THE DISCLOSURE[0002]1. Field of the Disclosure[0003]The present disclosure relates to a storage device which includes a NAND type flash memory and which is suitable for being used as a Solid State Drive (SSD).[0004]2. Description of the Related Art[0005]In recent years, an SSD has been adopted in a use application in which the SSD has been substituted as a storage device in a Personal Computer (PC) for a Hard Disc Drive (HDD) because the SSD has advantages that an access speed is high and power consumption is less as compared with the case of the HDD. In addition, the HDD is used not only in the PC, but also as a storage device of a built-in apparatus, and the number of cases where the SSD is adopted in the built-in apparatus as well has bee...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(United States)
IPC IPC(8): G06F12/02
CPCG06F12/0246G06F2212/7208
Inventor MAKUNI, KAZUKIOKINAGA, TAKAYUKIAZUMA, SHUICHIROTAKATA, YOSUKESUGAHARA, NORIAKI
Owner BUFFALO CORP LTD