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Voice frequency signal frequency-selecting electricity-taking device and method

An audio signal and frequency selection technology, applied in the field of data security, can solve problems such as inconvenient authentication, and achieve the effect of eliminating the trouble of charging

Inactive Publication Date: 2014-10-08
吴东辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in addition to the USB connection to the computer, the audio USB-shield can also communicate with the mobile phone through the audio interface to realize the online authentication operation of the mobile phone. At this time, the authentication signal of the audio USB-shield is transmitted through the audio interface of the mobile phone, so the audio USB-shield must be configured. The battery is used as a power source to drive the U-shield circuit (no battery power is needed when the USB is connected to the computer, and the power supply is directly provided by the USB). If the battery is not charged, the audio U-shield cannot work, so it is inconvenient to authenticate through the mobile phone.

Method used

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  • Voice frequency signal frequency-selecting electricity-taking device and method
  • Voice frequency signal frequency-selecting electricity-taking device and method
  • Voice frequency signal frequency-selecting electricity-taking device and method

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] figure 1 It is the schematic diagram of the existing audio USB shield. The audio U-shield is composed of a U-shield circuit, a battery, and an earphone plug. The battery is responsible for supplying power to the U-shield circuit. The data signal receiving end RX of the U-shield circuit is connected to the left channel L of the earphone plug, or to the right channel R of the earphone plug. The data signal sending end TX of the U-shield circuit is connected to the MIC microphone of the headphone plug, and the GND ground of the headphone plug is connected to the GND of the U-shield circuit. The authentication process is as follows: the U-shield software is installed in the smart terminal, and the U-shield software performs data exchange through the audio interface and the TX and RX ends of the U-shield circuit to achieve security authentication. T...

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PUM

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Abstract

The invention relates to the field of data safety, in particular to a voice frequency signal frequency-selecting electricity-taking device and method, wherein the voice frequency signal frequency-selecting electricity-taking device and method are used for electricity taking of a voice frequency USBkey. The voice frequency signal frequency-selecting electricity-taking device and method are characterized in that a frequency-selector is connected with a rectifying circuit, the rectifying circuit is connected with a capacitor, the capacitor is connected with a voltage stabilizing circuit, the voltage stabilizing circuit is connected with a USBkey circuit, a double-voice-frequency demodulation unit is connected with a signal receiving end RX of the USBkey circuit, the frequency-selector selects out a power supply signal of a specific frequency and provides the power supply signal to the rectifying circuit, the rectifying circuit is responsible for converting the power supply signal of the specific frequency into the direct current and storing the direct current in the capacitor, the capacitor supplies power for the USBkey circuit through the voltage stabilizing circuit, the double-voice-frequency demodulation unit is responsible for demodulating a signal expressed through double-voice-frequency and then providing the demodulated signal to the signal receiving end RX of the USBkey circuit. The voice frequency signal frequency-selecting electricity-taking device and method have the advantages that a battery and a power source of an existing voice frequency USBkey are eliminated, the voice frequency USBkey can be used while being inserted no matter the voice frequency USBkey is connected to a computer through a USB or connected to a mobile phone through an voice frequency interface, and the charging trouble is saved.

Description

technical field [0001] The invention relates to the field of data security, in particular to a device and method for frequency-selective power collection of audio signals, which are used for power collection of audio USB shields. Background technique [0002] At present, in addition to the USB connection to the computer, the audio USB-shield can also communicate with the mobile phone through the audio interface to realize the online authentication operation of the mobile phone. At this time, the authentication signal of the audio USB-shield is transmitted through the audio interface of the mobile phone, so the audio USB-shield must be configured. The battery is used as a power source to drive the U-shield circuit (no battery power is needed when the USB is connected to the computer, and the power is directly provided by the USB). If the battery is not charged, the audio U-shield cannot work, so it is inconvenient to authenticate through the mobile phone. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/82
CPCG06F21/34
Inventor 赵新陆庆生吴东辉
Owner 吴东辉
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