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Storage device, electronic device and data access method

A technology of storage devices and electronic equipment, applied in the direction of electrical digital data processing, instruments, input/output to record carriers, etc., can solve the problems that are difficult to meet the high capacity and long life of the product as a whole, and achieve the effect of optimal and balanced configuration

Active Publication Date: 2020-01-31
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some solutions propose to mix different units to meet the requirements, but because there is no support from applications, this hybrid structure can only be used in flash memory products, with SLC as a buffer, it is difficult to meet the high capacity and long life of the product as a whole

Method used

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  • Storage device, electronic device and data access method
  • Storage device, electronic device and data access method
  • Storage device, electronic device and data access method

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Embodiment Construction

[0039] Hereinafter, various embodiments, applications, and modifications will be described with reference to the accompanying drawings. In addition, the embodiments described below are preferred specific examples, and technically preferable various limitations are set, but in the following description, the present invention is not limited to these embodiments.

[0040] First, refer to figure 1 An electronic device according to an embodiment of the present invention is described. The electronic device is preferably, for example, a personal computer, a smartphone, a personal digital assistant, a palmtop or the like.

[0041] figure 1 is a block diagram illustrating an electronic device according to an embodiment of the present invention. Such as figure 1 As shown, the electronic device 1 according to the embodiment of the present invention has a central processing unit 10 and a storage device 20 . In an embodiment of the present invention, the storage device 20 may be an SS...

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Abstract

The invention discloses a storage device with variable capacity, an electronic device using the storage device and a data access method thereof. The storage device includes: a plurality of storage units, each of the plurality of storage units is in one of a first storage state and a second storage state, and a first number of storage units in the first storage state constitutes a first storage state. area, and a second number of storage units in the second storage state constitute a second storage area; and a control unit for controlling each of the plurality of storage units in the first storage state and the second storage state. Switching between storage states, wherein the storage unit in the first storage state and the storage unit in the second storage state have different storage capacities.

Description

technical field [0001] The invention relates to the field of storage devices, and in particular to a storage device with variable capacity, an electronic device using the storage device and a data access method thereof. Background technique [0002] The earliest NAND flash memory technology architecture is SLC (Single-Level Cell, Single-Level Cell), its principle is to store 1 bit of data in a memory storage unit (cell), until MLC (Multi-Level Cell, After Level Cell) technology took over, the architecture evolved to store 2-bit data in one memory storage unit. In 2009, the TLC (Trinary-Level Cell) architecture was officially launched, which means that one memory storage unit can store 3 bits of data, and the cost is further reduced significantly. SLC flash memory has the advantages of fast read and write speed and long life, but its disadvantages are high cost and small storage capacity. In contrast, MLC or TLC flash memory achieves greater storage capacity at a relatively...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/16G06F3/06
Inventor 李洪伟王竹强柴海新
Owner LENOVO (BEIJING) LTD