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Secure digital (SD) memory card with switchable chips and control method

A memory chip and security technology, applied in the protection of internal/peripheral computer components, etc., can solve the problems of loss of sensitive files, threat of use of ordinary SD card smart terminals, adverse effects, etc., to maintain the convenience of use and improve data security. Effect

Inactive Publication Date: 2013-06-05
隋国利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the mobile phone is lost, these sensitive files will be lost, and are very likely to be misused by others, and even cause serious adverse effects
[0004] The above security risks of ordinary SD cards have caused a wide range of threats to the use of smart terminals. Therefore, it is of positive social significance to propose a secure SD card that can solve the above problems.

Method used

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  • Secure digital (SD) memory card with switchable chips and control method
  • Secure digital (SD) memory card with switchable chips and control method
  • Secure digital (SD) memory card with switchable chips and control method

Examples

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Embodiment Construction

[0019] For the convenience of describing the present invention, the embodiment selects a computer as an intelligent terminal for implementation.

[0020] The present invention will be described in detail below through an embodiment on a computer in conjunction with the accompanying drawings.

[0021] The secure SD card of the present invention physically includes an SD controller, a public storage chip, and a secure storage chip. Users control the secure SD card by installing and running special control software in various intelligent terminals such as mobile phones, tablet computers, digital cameras, digital video cameras, personal digital assistants, multimedia players, and computers. figure 1 It is a schematic diagram of the secure SD card of the present invention.

[0022] After the secure SD card of the present invention is inserted into the computer, a removable storage drive letter is added to the computer file system, and the drive letter displays the file content of ...

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PUM

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Abstract

The invention discloses a secure digital (SD) memory card with switchable chips and a control method. The SD memory card physically comprises an SD controller, a public memory chip and a secure memory chip. After the secure SD memory card is installed on an intelligent terminal and powered on, the SD controller opens the public memory chip and closes the secure memory chip, and performs switching between the different memory chips after receiving a control instruction of 'switching to the secure memory chip' or 'switching to the public memory chip' sent by special control software, an intelligent terminal file system only displays one of memory chips and reads and writes user data of the SD memory card to the memory chip. The special control software performs identity authentication to users and can send the control instruction after the authentication is passed. The secure SD memory card with switchable chips and the control method can be widely applied to various intelligent terminals and safely memorize and use files needing protection and remarkably improve the safety of various mobile application.

Description

technical field [0001] The present invention relates to the field of static memory technology equipment and the field of information security technology, in particular to the secure storage and application of SD cards, and specifically refers to a secure SD card with switchable memory chips and a control method. Background technique [0002] SD card is a portable memory card. SD cards are available in Standard SD, Mini SD, Micro SD and other packaging forms. Due to the small size and large storage capacity of the SD card, it has been widely used in various smart terminals such as mobile phones, tablet computers, digital cameras, digital video cameras, personal digital assistants (PDAs), multimedia players, and computers. The card is prone to some information security risks, the most common of which is the loss of private files caused by the loss of smart terminals and SD cards. [0003] Taking mobile phones as an example, as the processing power and intelligence of mobile ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/77
Inventor 隋国利
Owner 隋国利
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