Solutions to prevent cell phone recording

　　At present, information leakage incidents are becoming more frequent. Enter keywords at random for information security or personal privacy protection. The search results are often around tens of millions. People's awareness of personal information protection is gradually increasing, but how to take effective measures , It has become a matter of opinion.

　　Due to the high technical threshold, there are relatively few anti-recording and eavesdropping products at home and abroad, and the existing more mature products also have some major limitations, such as the cost of shielded rooms is too expensive, and anti-eavesdropping headsets cannot be implemented under concealed conditions. Recording shielding, the more popular wireless high-frequency recording shielding in foreign countries in the past few years is only effective for traditional analog recording equipment, and it is basically ineffective for new digital recording equipment such as voice recorders, smart phones, etc... and some products will also produce stronger The electromagnetic radiation, long-term use is harmful to the human body.

　　The recording shield can realize recording shielding in a concealed manner under silent conditions. When criminals use recording equipment (such as mobile phones, voice recorders, bugs, etc.) to record you, the recording muting device will generate random noise signals, which can produce suppressive interference to the voice signal, causing the recording equipment to pick up the noise. There is only noise information, but the voice information cannot be distinguished, and the original information cannot be restored from the recorded signal, thereby ensuring the security of the voice information. The recording blocker uses a high-security national secret algorithm to generate random high-power interference signals, which can suppress and interfere with the voice signal, so that only noise information is picked up by the recording equipment, and it can neither be distinguished nor distinguished from the recorded information. Restore the original voice information, so as to achieve the purpose of voice information protection.

　　The recording blocker is suitable for various scenarios such as offices, conference rooms, inquiry rooms, courts, mobile offices, and vehicles. It can effectively solve the problem of voice information leakage of different customer groups such as individuals, enterprises, and government agencies. The meeting room of the leadership office has a good shielding effect in the trial hall. For effective recording equipment, after using the recording shield, the audio information recorded by the recording equipment can only be heard, but basically no voice information can be heard. Compared with similar products, its shielding distance is farther.

　　At present, the more popular high-frequency recording shields on the market have a shielding distance of less than 1 meter, while the recording shields produced by our company can have a shielding distance of about 2 meters, and some recording equipment can even reach more than 3 to 5 meters. High security Adopting high-security national secret algorithm to generate completely random interference signals, so that the original voice information cannot be restored from the recorded audio information, realizing the recording shielding in the true sense.

　　At present, the more popular recording shielding products on the market have a coverage rate of less than 30% for recording equipment. Some products are only effective for traditional analog recording equipment, and are basically ineffective for new digital recording equipment. The recording shield produced by Shenzhou Mingda can shield the current mainstream recording equipment, including mobile phones, voice recorders, eavesdroppers, etc., with a coverage rate of over 80%, which is much higher than similar products on the market. There are many product forms and strong concealment. The produced recording shielding device supports product customization and can be modified into various common daily necessities, such as speakers, telephones, alarm clocks, pen holders, tissue boxes, hard disk boxes, etc., with strong concealment, and can be used without attracting the attention of others In the case of realizing recording shielding.

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