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

Method for managing flash memory

A memory and flash technology, applied in memory systems, protection of stored content from loss, instruments, etc., can solve problems such as affecting system capabilities

Inactive Publication Date: 2003-05-28
SAMSUNG ELECTRONICS CO LTD
View PDF0 Cites 35 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, flash memory is limited to the number of partial writes, where the order in which data, information, etc. are recorded has an effect on the ability to improve the system

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for managing flash memory
  • Method for managing flash memory
  • Method for managing flash memory

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The invention will now be described in more detail with reference to the accompanying drawings, in which preferred embodiments of the invention are shown.

[0027] figure 2 is a block diagram of a flash memory according to a preferred embodiment of the present invention. refer to figure 2 , the system includes memory 1 , ROM 2 , RAM 3 and processor 4 . Here, the main memory RAM 3 is embodied as a DRAM (Dynamic RAM). However, this RAM 3 may be embodied as SRAM (Static RAM) if necessary.

[0028] Typically, the processor 4 , combined with the program code recorded in the ROM 2 , sends a series of write and erase commands for the flash memory 1 or RAM 3 . The flash memory 1 executes write and erase calculations according to the method for managing flash memory of the present invention. ROM 2 and RAM 3 store application program code executed in processor 4 or its related data structures.

[0029] image 3 with Figure 4 is a detailed configuration diagram of the f...

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

A method for managing a flash memory is provided wherein logical addresses of data recorded in a data region of the flash memory are recorded in a corresponding spare region. An address mapping table is produced by scanning information recorded in the spare region. As a result, the flash memory can be embodied more effectively. In addition, it is possible to restore a mapping table even though the power is suddenly cut-off.

Description

technical field [0001] The present invention relates to flash memory, and more particularly to a method for managing flash memory in a flash memory based system. Background technique [0002] Flash memory is a non-volatile memory device used to electrically erase or rewrite data. Flash memory based storage devices have lower power consumption and smaller form factor than disk memory based storage devices. Therefore, it has been researched as a replacement for disk storage. More importantly, flash memory is expected to be used as a storage device for mobile computing devices such as digital cameras, mobile phones, and personal digital assistants (PDAs). [0003] However, unlike disk memory, which can overwrite data, flash memory cannot overwrite data. In order to overwrite data stored in flash memory, the existing data must first be erased. In other words, the storage unit should be restored to the original writable state. Erasing generally takes longer than writing. In...

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 Applications(China)
IPC IPC(8): G06F12/16G06F12/00G06F12/02G06F12/10
CPCG06F12/1009G06F12/0246G06F12/00
Inventor 白昌奎
Owner SAMSUNG ELECTRONICS CO LTD