Information security construction, how can the recording blocker be absent

　　When we have a meeting, we usually discuss some of the company’s confidential content. If we are not careful, the content of the meeting may be monitored, leading to the disclosure of some of the company’s secrets, which may cause immeasurable losses to the company. , We should really need the help of some recording jamming equipment to solve this problem. With the development of the information society, audio and video information is showing explosive growth and viral transmission. There is a risk that personal privacy, business secrets and other information will be leaked through conversations, especially how valuable conversational information can protect conversations Is the content not stolen by others?

　　To give a simple example, one day your company will hold an emergency meeting, but you know this meeting. It is almost an important meeting related to the future destiny of the company and whether you can continue to work in this company in the future. , You pay great attention to this and are also fully prepared. During a company meeting, you provided the company with some of the company’s intended customers. These customers are likely to be related to the company’s future. The company also attaches great importance to this and included this meeting in the company’s confidential meeting. It also stated that this meeting must not be circulated outside, but in this meeting, no one paid attention to this important meeting content has been tapped by others.

　　A lot of negative news about the leak of the content of the meeting is endless. In response to these phenomena, it can be seen that whether it is monitoring, eavesdropping equipment or recording interference equipment, they are constantly updated, which requires the development of real recording interference equipment is imminent. How can we protect the company's information security?

　　Anti-recording solution

　　The recording jammer is a very effective product. It can send out interference signals to prevent the pickup or microphone from picking up normal voice information, and pick up the "buzzing" noise to protect the voice information. The recording jammer is It is the simplest and most effective to protect the security of voice information from the source of sound collection. Shenzhou Mingda has focused on information security for 14 years. The newly developed L7B recording jammer has been upgraded on the basis of the original equipment. The FPGA-based ultrasonic noise algorithm eliminates the high frequency noise of the old equipment. It has joined the brands that have been listed in the past two years. The information of mobile phones and recording equipment has a very obvious effect on new recording equipment and mobile phone recording.

　　The recording jammer MDPB-L7B emits ultrasonic waves with random noise that human ears cannot perceive. When digital devices such as mobile phones are recording, these noises are recorded into the digital device together with the sound of normal conversations, making the recorded audio invalid. The audio information in the captured video also has the same interference effect. Because the noisy ultrasonic noise is randomly generated and cannot be restored, the audio after the interference cannot be restored, thus ensuring that the original information is not leaked and spread. Features of recording jammer MDPB-L7B:

　　1. High interference intensity: Our self-developed FPGA-based ultrasonic noise algorithm can effectively interfere with digital devices such as mobile phones, voice recorders, etc., can record noises, and completely eliminate the harsh sound that a few people can hear.

　　2. Long interference distance: The anti-recorder has an interference distance of more than two meters for 95% of mobile phones, an interference distance of more than 5 meters for 60% of mobile phones, and an interference distance of 10 meters for iPhone X and iPhone 8, which can be effective Protect the conversation

　　3. There are many interference devices: it has good interference effects on various mobile phones such as iPhone series, Huawei mate, Honor, OPPO, VIVO, Samsung, Nubia, Meizu, Nuts, etc., and it has good interference effects on Sony, Samsung, Sanyo, Newman, Lenovo, Olympa. Sound recorder test interference effect is good

　　4. Mute work: The anti-recorder has replaced the ultra-quiet fan, and the sound produced during work is smaller and quieter than the old equipment.

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