VOICE INFORMATION AGAINST LASER INTERCEPTION PROTECTION METHOD Russian patent published in 2019 - IPC H03B29/00 H04K3/00 

FIELD: protection means.

SUBSTANCE: invention relates to the speech signals against laser interception through the window protection methods. For this purpose, method envisages the window overlapping with film, the film and the window glass excitation with masking vibration by means of vibration radiators. Film is made in the form of made of light transmitting-scattering material located inside room rolled curtain, curtain is pressed directly or through the solid supports to glass or to the additionally installed on glass and/or frame, on window niche or wall vibration radiators. Provision is also made for possibility of the ferromagnetic material net attachment to the curtain and magnetized sections formation on the glass, supports and vibration radiators or the permanent magnets attachment thereto. For the vibrations intensification, the curtains – supports or vibration radiators are connected in pairs by touching the lowered curtain bars. In nonoperating position the curtain is coiled on a horizontal shaft at the top of a window.

EFFECT: technical result of invention is simplification of the voice information protecting against the laser interception method, increase in its efficiency and reliability.

8 cl, 4 dwg, 1 tbl