A recording shielding device and recording shielding method

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...

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

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