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U-Key disk with switch

A switch and switch control technology, applied in the field of U-Key disk, can solve the problem of not being able to control the activation and shutdown of U disk or Key independently, and achieve the effects of avoiding conflicts, low production costs, and ensuring safety

Inactive Publication Date: 2009-04-15
HENGBAO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a U-Key device with a switch, which solves the problem that the U-disk or Key can not be individually controlled on and off in ordinary U-Key devices through the switch, avoids the potential safety hazard of the Key, and ensures the use convenience

Method used

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Embodiment Construction

[0008] exist figure 1 There is a switch between the electronic signature Key of the USB interface and the control chip of the USB HUB. The switch is located between the +5V VCC power signal line of the electronic signature Key of the USB interface and the +5V power supply, which can control the entire electronic signature Key It also controls the enabling and closing of the Key. The remaining D+, D- and GND signal lines of the electronic signature Key do not need to use switches, that is, the D+ and D- signal lines are directly connected to the USB HUB chip, and the GND signal line is connected to the entire circuit. version of the ground wire.

[0009] exist figure 2 In the embodiment shown, except as figure 1 In addition to the switches shown, there is also a switch between the U disk control chip and the USB HUB control chip. The switch is located between the VCC power signal line of the U disk control chip and its corresponding voltage power supply, which can control th...

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Abstract

The invention aims at providing a U-Key device provided with a switch and solves the problems that in the common U-Key device, the start and close of the U disk or the Key can not be controlled separately, thus avoiding the potential safety hazard of the Key and ensuring the convenience of use. The invention has the beneficial effects that in the use process of the product, two devices are respectively controlled in virtue of the switch, any of which is started and closed according to actual requirement, thus avoiding the use conflict between the two devices, ensuring the safety of the Key but not affecting the convenience of the U disk. Moreover, the U-Key device has simple structure, safety and reliability and very low additional production cost.

Description

Technical field [0001] The present invention is related to a U-disk (USB flash drive) and an electronic signature Key, and is particularly related to a U-Key disk having a switch, a U-disk (USB flash drive) and an electronic signature Key at the same time. Background technique [0002] A USB flash drive (also known as a USB flash drive) is a general-purpose mobile storage device that is connected to an electronic device through a USB interface. Because of its compact size, convenient carrying, reliable storage, and light weight, U disk is favored by the majority of users and has become a universal mobile storage device. An electronic signature key is an intelligent electronic device that can complete the calculation of generating electronic signature, verify the calculation of electronic signature and data encryption and decryption, and can save data such as digital certificate and certificate private key. With the development of computer technology and people's emphasis on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C7/10G11C7/24
Inventor 吴中华
Owner HENGBAO
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