FIELD: physics.
SUBSTANCE: device for detecting use of a laser acoustic location system for unauthorised pickup of speech information has a lens 1, the optical input of which is the input of the device, a tunable optical filter 2, series-connected photodetector 3, amplifier 4, control unit 5, the first output of which is the output of the device, and a device 6 for controlling the tunable optical filter, the output of which is connected to the control input of the tunable optical filter, as well as a power supply unit 7, the output of which is connected to power inputs of the photodetector 3, amplifier 4, control unit 5 and device 6 for controlling the tunable optical filter.
EFFECT: timely detection of use of a laser acoustic location system for unauthorised pickup of speech information.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR PROTECTING VOICE INFORMATION AGAINST UNAUTHORIZED READOUT | 2002 |
|
RU2226743C2 |
| DEVICE FOR PROTECTING ENCLOSED LOCATIONS AGAINST UNAUTHORIZED PICKUP OF VOICE INFORMATION | 2003 |
|
RU2231231C1 |
| DEVICE FOR PROTECTING VOICE INFORMATION AGAINST UNAUTHORIZED TAKEOFF | 2003 |
|
RU2231928C1 |
| LASER DEVICE FOR MONITORING OF EFFICIENCY OF MEASURES TAKEN FOR PROTECTION OF ROOMS AGAINST UNAUTHORIZED PICKUP OF VOCAL INFORMATION | 2002 |
|
RU2221981C2 |
| METHOD FOR PROTECTING ACOUSTIC INFORMATION FROM UNAUTHORISED EXTRACTION | 2020 |
|
RU2772111C2 |
| SYSTEM OF HIDDEN PROTECTION OF CONFIDENTIAL ACOUSTIC INFORMATION FROM UNAUTHORIZED REMOVAL AND A FILM COATING FOR THIS SYSTEM | 2021 |
|
RU2770790C1 |
| FIBRE OPTIC DETECTOR OF VOICE INFORMATION LEAKAGE THREATS VIA FIBRE OPTIC COMMUNICATIONS | 2009 |
|
RU2428798C2 |
| APPARATUS FOR PROTECTING ACOUSTIC INFORMATION FROM HIGH-FREQUENCY INTERFERENCE OVER A RADIO CHANNEL | 2019 |
|
RU2711211C1 |
| LASER LOCATION SYSTEM | 2013 |
|
RU2540451C1 |
| LASER LOCATION SYSTEM | 2013 |
|
RU2544305C1 |
