FIELD: information protection.
SUBSTANCE: when the integrity of the grounding circuit of the computer equipment is violated, the level of the electrical component of the field of the screen increases, electric field sensor fixes the appeared electric field level and transmits it to the comparison unit for comparison with the voltage level value coming from the voltage converter, when the logical unit signal comparison unit is established, the voltage is supplied to the sound source, which generates an audio signal on violation of the grounding circuit, voltage in the form of an analogue signal is transmitted to the microcontroller, which converts it into a digital code and sends it to the motherboard of the computer equipment, the working session of the computer equipment in a protected version is blocked.
EFFECT: high protection of information of limited distribution from leakage along the channel of spurious electromagnetic radiation and interference when processing it on computer equipment in a protected version.
1 cl, 1 dwg
