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Mixed sound recording blocker

A jammer and sound wave technology, applied in the direction of electrical components, interference to communication, etc., can solve problems such as illegal theft of personal privacy, business secrets, state secrets, national security threats, etc., and achieve large spectrum coverage, good saturation effect, and emission long distance effect

Active Publication Date: 2016-10-26
GUANGDONG POWER GRID CO LTD INFORMATION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some criminals illegally steal personal privacy, business secrets and even state secrets through mobile phones, recording pens or other professional miniature eavesdropping devices, thereby causing economic losses to individuals and enterprises, and even threatening national security

Method used

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Embodiment Construction

[0017] The present invention provides a hybrid acoustic recording mask. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] Hybrid sound wave recording shield provided by the present invention, as figure 1 As shown, it includes a power supply unit, a control unit, a modulation unit, a noise unit, a high-frequency transmitting unit, a radio frequency unit, a power amplifier unit, a PTZ unit (piezoelectric ceramic transducer unit) and an electromagnetic pulse unit; the power supply unit and other needs The power supply unit is connected to provide power for other units that need power supply; the output terminals of the control unit and the noise unit are respectively connected to the input terminals of...

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Abstract

The invention discloses a mixed sound recording blocker comprising a power unit, a control unit, a modulation unit, a noise unit, a high-frequency emission unit, a radio frequency unit, a power amplifier unit, a PTZ unit, and an electromagnetic pulse unit. The noise unit includes a white noise generator and a pink noise generator. The mixed sound recording blocker of the invention adopts ultra-low-frequency emission, the receiver of an acoustic sensor is blocked directly, so that the receiver cannot extract or restore received audio signals after saturation, and no harm is brought to the human body or the environment. An effective noise source is selected, and the noise source is modulated in multiple modulation modes so the modulated noise is irregular. An effective means of emission is adopted to meet the following requirements: the emission distance is as far as possible, the spectral coverage is as large as possible, and the saturation effect is as good as possible.

Description

technical field [0001] The invention relates to the technical field of devices for monitoring or monitoring electrical communication, and mainly relates to a hybrid sound wave recording shield. Background technique [0002] At present, with the rapid development of science and technology, the popularity of electronic products, and the miniaturization of electronic products, personal and public information security is increasingly threatened. Some criminals illegally steal personal privacy, business secrets and even state secrets through mobile phones, recording pens or other professional miniature eavesdropping devices, thereby causing economic losses to individuals and enterprises, and even threatening national security . [0003] Most of the recording equipment now collects voice signals through acoustic and electric sensors. The propagation of sound is a kind of mechanical wave, which is transmitted in the air by vibration. The acoustic-electric sensor collects signals ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04K3/00
CPCH04K3/62H04K3/825
Inventor 高尚黄恺彤曾初阳黄巨涛肖建毅黄剑文何旻诺马瑞雯林强
Owner GUANGDONG POWER GRID CO LTD INFORMATION CENT
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