Electronic hardware with function of quick self-destruction and data erasing method thereof

An electronic hard disk and data erasing technology, which is applied in the fields of electronic digital data processing, digital data protection, instruments, etc., can solve the problems of data leakage, high cost of physical destruction, cumbersome encryption methods, etc., and achieve the effect of flexible use

Inactive Publication Date: 2010-07-14
XIAN KEYWAY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of cumbersome encryption method in the existing data protection method, high cost of physical damage and possible data leakage, adopt a compromise idea, and provide a flexible and fast And a more reliable data protection method - data erasure

Method used

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  • Electronic hardware with function of quick self-destruction and data erasing method thereof
  • Electronic hardware with function of quick self-destruction and data erasing method thereof
  • Electronic hardware with function of quick self-destruction and data erasing method thereof

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Experimental program
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Embodiment Construction

[0027] see figure 1 , with the self-destruct module as the core, describe the working process of the entire system in detail.

[0028] There are three major modules in the figure, a self-destruction command monitoring module, a flash memory control unit (self-destruction realization module), and a data channel crossbar switch module.

[0029] If the host is responsible for starting the self-destruction of the electronic disk, the host sends a self-destruction command, which is translated by the flash memory controller to generate a self-destruction start signal, or an external circuit generates a self-destruction signal with a certain level and a certain width. A self-destruct start signal is generated after the destroy signal. At the same time, a selection signal of the data channel crossbar module is generated.

[0030] When the self-destruction module detects that the self-destruction start signal is valid, the flash memory control unit (self-destruction implementation mo...

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PUM

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Abstract

The invention relates to an electronic hardware with function of quick self-destruction and a data erasing method thereof. The hardware comprises a flash controller, a flash chip array and a self-destruction module, wherein the self-destruction module comprises a self-destruction order ministering module, a data channel cross switch module and a flash control unit; the self-destruction order ministering module is connected with the flash controller; the input of a flash controlling unit is connected with the self-destruction order ministering module, and the output of the flash controlling unit is connected with the data channel cross switch module; and the input of the data channel cross switch module is connected with an address decoding unit and a bus expanding unit, and the output of the data channel cross switch module is connected with the flash chip array. The invention has modularized data erasing function, can flexibly use, does not need a host machine when erasing the data, has fast erasing speed and reliability, can not destroy a data-erased memory medium, and increases the confidentiality degree of the data.

Description

technical field [0001] The invention relates to an electronic hard disk with fast self-destruct function and a data erasing method thereof. Background technique [0002] An electronic hard disk is a hard disk composed of an array of solid-state electronic memory chips. At present, the most common electronic hard disk uses flash memory as a storage medium. As a new non-volatile storage medium, flash memory has many advantages such as high storage density, convenient portability, low power consumption, long data retention time after power failure, and good shock resistance. Electronic hard disks with flash memory chips as storage media do not have the rotating media of ordinary hard disks, so they have excellent shock resistance and a wide operating temperature. At the same time, the interface specifications, definitions and usage methods of electronic hard disks are exactly the same as ordinary hard disks, and can easily replace traditional mechanical hard disks. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/00G06F21/60G06F21/80
Inventor 刘升崔建杰李晓娟
Owner XIAN KEYWAY TECH
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