DEVICE FOR PROTECTING A COMPUTER FROM UNSANCTIONED INSTALLATION OF SOFTWARE MODULES AND READING OF INFORMATION TRANSFERRED THROUGH RADIO INTERFACES AND OTHER RADIO FREQUENCY CHANNELS Russian patent published in 2007 - IPC H04K3/00 G06F11/30 

FIELD: technology for protecting information contained on a computer.

SUBSTANCE: in the device, controllable generator of radio interferences and controllable power amplifier are connected serially. Antenna commutator is connected by first signal input to output of power amplifier. Signal input of signal processing block is connected to first output of antenna commutator, first controlling output is connected to controlling input of radio interference generator, second controlling output is connected to power amplifier controlling input, and signal output is connected to input of indicator of type of radio interface or radio frequency channel. Output of power supply is connected to powering inputs of antenna commutator and signal processing block. Controllable electronic computer is connected between output of power supply and powering inputs of radio interference generator and power amplifier and is connected by control input to third control output of signal processing block. Band filter is coupled between combined second signal input and output of antenna commutator and receiving-transmitting antenna. The latter is mounted in close proximity of computer being protected with possible reaction to operation of receiver-transmitter of malefactor. Signal processing block consists of serially coupled receiver, detector and logical analyzer, made in form of microprocessor with possible determining of fact of presence of an illegal signal, its power, band of working frequencies, duration of packets and association with a type of radio interface or radio frequency channel.

EFFECT: increased efficiency of computer protection, increased informational safety of computer.

4 cl, 2 dwg