A recording shielding device and recording shielding method

A shield and filter technology, applied in electrical components, interference to communications, etc., can solve the problems of illegal stealing of personal privacy, commercial secrets, state secrets, national security threats, etc., to achieve large spectrum coverage, good saturation effect, The effect of launching long distances

Active Publication Date: 2018-07-27
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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  • A recording shielding device and recording shielding method
  • A recording shielding device and recording shielding method
  • A recording shielding device and recording shielding method

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Embodiment Construction

[0025] The present invention provides a recording shielding device and a recording shielding method. In order to make the purpose, technical solution and effect of the present invention more clear and definite, 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.

[0026] The recording jammer provided by the present invention, such 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 t...

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PUM

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Abstract

The invention discloses a voice recording shielding device and a voice recording shielding method. The shielding device comprises a power unit, a control unit, a modulation unit, a noise unit, a high-frequency transmitting unit, a wireless radio frequency unit, a power amplification unit, a PTZ unit and an electromagnetic pulse unit. According to the voice recording shielding device disclosed by the invention, by employing ultralow frequency transmitting, a receiving end of an acoustic sensor is blocked directly, so that a received acoustic signal cannot be extracted and restored after the receiving end is saturated, and simultaneously no harm is brought to a human body and environment; by selecting an effective noise source and employing multiple modulation manners for the noise source, the modulated noise source has no rules to follow; and meanwhile, by employing an effective transmitting manner, the requirements that the transmitting distance is as distant as possible, the frequency spectrum coverage range is as wide as possible and the saturation effect is as good as possible, and the like are satisfied.

Description

technical field [0001] The invention relates to the technical field of devices for monitoring or monitoring electrical communication, and mainly relates to a recording shielding device and a recording shielding method. 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04K3/00
CPCH04K3/68
Inventor 黄剑文林强黄巨涛曾初阳高尚黄恺彤肖建毅何旻诺马瑞雯
Owner GUANGDONG POWER GRID CO LTD INFORMATION CENT
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