⎝⎛韦德足球⎞⎠

Tianjin Optoelectronics Group (State-owned 754 Factory)
Tianjin Optoelectronics Anchen Information Technology Co., Ltd.

Focus on information security for 70 years
Stock code: 871339

Service Hotline: 4009999754

Anti-Recording Security Solution

2018-12-06

【background】
At present, with the development of recording technology and the popularization of new recording equipment such as mobile phones and voice recorders, more and more criminals use various devices to perform eavesdropping and eavesdropping activities, stealing and leaking personal privacy, Enterprise secrets, government secrets, and even national security information have brought huge security risks to the information security of individuals, enterprises, government agencies, and even our country. The "monitoring door" incident in the United States, the "eavesdropping door" incident in the United Kingdom, and the "recording door" incident in the Chinese stock market ... These endless eavesdropping incidents all reflect the current strong demand for anti-recording products.

【status quo】
Due to the high technical threshold, there are relatively few anti-tapping products at home and abroad, and the existing more mature products also have some major limitations. For example, the cost of the shielding room is too expensive, and anti-eavesdropping headphones cannot be implemented under concealed conditions. Recording shielding, the wireless high-frequency recording shielding that was more popular in foreign countries in the past few years are only effective for traditional analog recording equipment, and basically not effective for new digital recording equipment such as voice recorders, smartphones, etc ... and some products will produce strong The long-term use of electromagnetic radiation is harmful to the human body.

【solution】
Relying on the strong military R & D capabilities of Tianjin Optoelectronics Group (State-owned 754 Factory), our company took 7 years to develop a voice information security protection product with completely independent intellectual property rights-a recording masker. The product can cover the recording in a covert manner under silent conditions. When a criminal uses a recording device (such as a mobile phone, a recording pen, or an eavesdropper) to record you, the recording masker will generate a random noise signal that can suppress the voice signal and cause the recording device to pick up Only the noise information can not distinguish the voice information, and the original information cannot be restored from the recorded signal, thereby ensuring the safety of the voice information.
The recording masker uses a high-security national secret algorithm to generate a random high-power interference signal. This signal can suppress the interference of the voice signal, so that only the noise information can be picked up by the recording equipment, and it can neither be distinguished nor recorded from the recorded information. The original voice information is restored to achieve the purpose of voice information protection.
Figures 1 and 2 show the analysis of audio signals recorded by the recording device before and after using the recording masker.

Figure 1-Recording signal analysis (without recording mask) Figure 2-Recording signal analysis (with recording mask)
[Typical application scenario]

Figure 3-Desktop recording masker (enhanced version)


Figure 4-Desktop Recording Masker (Standard Edition)

Figure 5-Meeting Masker

Figure 6-Portable recording masker

As shown in Figure 3-6, the recording masker series products include desktop (standard version), desktop (enhanced version), conference version, and portable models, which are suitable for offices, conference rooms, inquiry rooms, and trials. Various scenarios, such as court, mobile office, and in-vehicle, can effectively solve the problem of leaking the voice information of different customer groups such as individuals, enterprises, government agencies (such as public prosecution system, military, disciplinary commission ...).

Leadership offices

meeting room

Court of justice


【Product advantages】
Good shielding effect For an effective recording device, after using the recording masker, the audio information recorded by the recording device can be played back. Only “嗞 嗞” noise can be heard, and basically no voice information can be heard. Compared with similar products, its shielding distance is longer. At present, the more popular high-frequency recording shields on the market have a shielding distance of less than 1 meter, and the shielding distances of our recording shields can reach about 2 meters, and some recording equipment can even reach more than 3-5 meters.

High security Adopting a 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, and real recording shielding is achieved.

There are many types of shielding equipment. Currently, the more popular recording shielding products on the market have less than 30% coverage of recording equipment. Some products are only effective for traditional analog recording equipment and basically ineffective for new digital recording equipment. The recording masker produced by our company, as shown in the figure below, can shield all kinds of mainstream recording equipment, including mobile phones, voice recorders, eavesdroppers, etc., and its coverage rate reaches more than 80% (Compatible with Apple series products, And the higher-end recording equipment, the better the shielding effect), far higher than similar products on the market.

Various product forms and strong concealment The recording masker produced by our company supports product customization and can be converted into various common daily necessities.
Such as speakers, telephones, alarm clocks, pen holders, tissue boxes, hard disk boxes, etc., have a strong concealment, can achieve recording shielding without attracting the attention of others.

Applicable scenes: Our recording maskers have a rich product line with many different models of products, such as desktop recording maskers (standard version), desktop recording maskers (enhanced version), and conference version recording masks. Device, portable recording masker. It can be used in various scenarios such as offices, conference rooms, inquiry rooms, courtrooms, mobile offices, and vehicles. It can effectively solve the individual needs of individuals, enterprises, government agencies (such as the public prosecution system, the military, and disciplinary commissions ...). demand.

Harmless to human body The recording shield produced by our company adopts the acoustic interference method for the first time in the industry, which is different from the electromagnetic interference method adopted by traditional recording interference equipment, which avoids the electromagnetic radiation generated by the recording shielding equipment to the human body.

【Product Certificate】
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