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Dual-system U disk

A dual-system, USB interface technology, applied in the field of accessories, can solve problems such as troublesome carrying, inconvenient operation, loss, etc., and achieve the effects of wide application range, improved safety, and improved reliability.

Inactive Publication Date: 2010-03-24
徐志强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the U disk has a circuit failure, improper use or virus damage, important data will be lost and serious losses will be caused.
Some users will use two U disks to store important data at the same time, but this will obviously cause troubles to carry, easy to lose, and inconvenient to operate. It needs to be inserted twice or occupy two USB sockets, which is not in line with usage habits

Method used

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Embodiment Construction

[0011] Embodiments of the present invention will be described below according to the accompanying drawings.

[0012] In each drawing, JP1 is a USB interface, that is, a USB plug, including a +5V terminal, a GND ground terminal, two data terminals D- and D+, and U1 and U2 are two sets of electronic storage circuits that can work independently of each other. That is, in the existing U-disk technology, flash memory is used as an electronic storage circuit for storage. U1 and U2 are installed in the same shell and share a USB interface, that is, it is just a U-disk in appearance.

[0013] figure 1 In the embodiment, the switch adopts a 2×2 mechanical switch K1, U1 and U2 are connected to two sets of contacts of K1, and the control contacts of K1 are connected to the USB socket. The user can select the USB socket to connect to U1 or U2 by operating K1 according to needs, so as to start U1 or U2. A 4×2 mechanical switch can also be used to switch even +V and GND, which will save m...

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Abstract

The invention relates to a dual-system U disk which comprises a USB interface; two sets of storage circuits which independently work are arranged in the U disk; and the two sets of storage circuits are connected to the same USB interface through a transfer switch. The invention has the significance of improving the reliability of the U disk, thus the U disk can store important data and has wider application range. Moreover, because two sets of systems are integrated in the same U disk shell, the inconvenience of carrying and operation can not be caused; and because one USB interface is shared,in the using process, the U disk only needs to be inserted once and only needs to occupy one USB socket to provide the convenience in use.

Description

technical field [0001] The invention relates to an accessory in the technical field of electronic computers. Background technique [0002] USB mobile storage disk (U disk) is a commonly used computer peripheral component. It is composed of a USB interface, a shell and a FLASH storage circuit inside. It is small in size, easy to carry, easy to use, and is often used to store important data. Data security is particularly important. Once the U disk has a circuit failure, improper use or virus damage, it will cause important data loss and cause serious losses. Some users will use two USB flash drives to store important data at the same time, but this will obviously cause troubles to carry, easy to lose, and inconvenient to operate. It needs to be inserted twice or occupy two USB sockets, which is not in line with usage habits. Contents of the invention [0003] The purpose of the invention is to disclose a U disk capable of improving the security of stored data. [0004] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C7/10
Inventor 徐志强
Owner 徐志强
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