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Data transceiving method and device based on HDD hard disk

A data sending method and a technology of a data transmission device, which are applied in the field of data transmission, and can solve problems such as the inability to restore the content of electromagnetic leakage and the absence of a display.

Active Publication Date: 2020-02-11
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, in a highly sensitive environment, conventional interfaces such as network ports, USB ports, serial ports, and microphone speakers will be blocked, so it is almost impossible to connect to a computer and transmit data through conventional interfaces
And some servers will be installed in the rack, and they do not have their own dedicated monitors. They will only be connected and used when needed. Therefore, video (image) ferrying and electromagnetic leakage content restoration in unconventional methods cannot be used.

Method used

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  • Data transceiving method and device based on HDD hard disk
  • Data transceiving method and device based on HDD hard disk
  • Data transceiving method and device based on HDD hard disk

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Embodiment Construction

[0049] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] A mechanical hard disk is composed of a disk, a magnetic head, a disk spindle, a control motor, a magnetic head controller, and an interface. During the data reading / writing process of the hard disk, when the magnetic head is impacted by external sound waves, the vibration generated will cause the magnetic head to slightly offset (offset), which is reflected in the voltage signal generated by the position sensor in the hard disk.

[0051] By analyzing the law of sound waves vibrating precision components and clarifying the relationship between voltage signals and sound waves, the hard disk can achieve a microphone-like effect, and then be able to extract and analyze human voice. By controlling the position of the head with the help of a feedback system, the relationship between the acoustic vibrations, the position of the...

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Abstract

The invention provides a data transceiving method and a data transceiving device based on a computer HDD hard disk. The method comprises the following steps: modulating to-be-transmitted data into anaudio signal, and enabling the audio signal to change the data transmission state of the hard disk; and monitoring a data transmission state of the hard disk, and demodulating according to the data transmission state to obtain a data signal. By adopting the technical scheme of the invention, firstly, the limitation of network isolation can be effectively broken through, and data communication is realized; and secondly, the problem that the conventional means is easy to monitor and discover can be avoided. And 3, data transmission can be realized in a relatively hidden manner.

Description

technical field [0001] The invention belongs to the technical field of data transmission, and relates to a data sending and receiving method and device based on an HDD hard disk. Background technique [0002] At present, the data transmission technology between two devices can be mainly divided into two categories, one is conventional methods: through IP network (wired and wireless), USB interface transmission, serial port transmission, microphone speaker, etc. The other is unconventional methods: video (image) ferry, electromagnetic leakage content restoration, etc. [0003] The most common way of data exchange between computer devices is the IP network. IP is the abbreviation of Internet Protocol in English, which means "interconnection protocol between networks", that is, a protocol designed for computer networks to communicate with each other. In the Internet, it is a set of rules that enable all computer networks connected to the Internet to communicate with each othe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/16G06F13/40G06F3/16G11B20/10
CPCG06F3/16G06F13/16G06F13/4068G11B20/10009
Inventor 梁用语杨国正刘京菊戚兰兰钟晓峰卢灿举
Owner NAT UNIV OF DEFENSE TECH