Patent ID: 6114684
Filing Date: 2000-09-05
Classification: H04K,H04R

Abstract:
A new and improved laser listening device detector comprising, in combination:a housing with a rectangular configuration having a rear face, a front face and a peripheral side wall formed therebetween defined by a top face, a bottom face and a pair of side faces;a mounting bracket including a planar rectangular bottom face and a pair of side faces extending upwardly from end edges of the bottom face, the faces of the mounting bracket each having a tab extending therefrom with a suction cup coupled thereto, wherein the mounting bracket is coupled to the bottom face of the housing with the side faces of the mounting bracket encompassing at least a portion of the side faces of the housing for securing the housing to an inner surface of a window such that a rear face of the housing is facing and spaced from the window;a plurality of photodiode detectors mounted on the rear face of the housing adjacent to each of the faces of the peripheral side wall thereof, each photodiode detector having a filter mounted thereon for only passing light within a predetermined frequency range, wherein the photodiode detectors each generate a detect signal upon the detection of light;a plurality of elongated auxiliary detectors each including an elongated housing strip with at least one suction cup mounted thereon for securing the strip to the inner surface of the window, each strip further including a plurality of auxiliary photodiode detectors having a filter mounted thereon for passing light within the predetermined frequency range, wherein the auxiliary photodiode detectors each generate the detect signal upon the detection of light;an auxiliary jack mounted on one of the side faces of the housing for releasably connecting with an adapter which is in turn connected to the auxiliary photodiode detectors via a wire;an amplifier situated within the housing and connected to the auxiliary jack and the photodiode detectors of the housing for amplifying the detect signal by a constant amount upon the receipt thereof;a comparator situated within the housing and connected to the amplifier for passing the detect signal upon the same having a magnitude which is at least a predetermined amount;a jamming mechanism including a motor mounted within the housing and having a rotor with an eccentrically mounted weight thereon, wherein a rubber bumper is in communication with the weight and extends from the rear face of the housing at a central extent thereof for abutting the inner surface of the window during use and further vibrating the window upon the actuation of the motor;a light positioned on the front face of the housing for illuminating upon the actuation thereof;a speaker positioned on the front face of the housing for generating an audible signal upon the actuation thereof;a pair of slider switches mounted on the front face of the housing and each having a first, second and third orientation, the switches including an alarm mode switch and a jamming mode switch; anda controller situated within the housing and connected to the comparator, jamming mechanism, light, speaker and switches, the controller adapted to actuate just the speaker, just the light, and both the speaker and light upon the receipt of the detect signal when the alarm mode switch is in the first, second and third orientation, respectively, the controller further adapted to actuate the motor irrespective of the detect signal, actuate the motor only upon the receipt of the detect signal, and preclude the actuation of the motor when the jamming mode switch is in the first, second and third orientation, respectively.