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Matches 1 - 50 out of 5,870

Document Document Title
WO/2019/152588A1
Techniques are described for the exchange of control signals between a controlled unmanned aircraft (i.e. drone) and a ground control station and for the transmission of communication signals, such as video, from the drone to the ground ...  
WO/2019/149415A1
A method of detecting a moving jamming device issuing a jamming signal, and closing in on an alarm installation, the method comprising the following steps - providing a first signal representative of instantaneous received radio energy; ...  
WO/2019/152628A2
A communication system is provided having multiple transmit antennas for transmitting respective transmit signals with spatial diversity to reduce multipath fading. The communication system communicates with at least one receiver for rec...  
WO/2019/146877A1
According to one embodiment of the present invention, in a concealed jamming attack using a false acknowledgement frame, a jamming attack is performed at a point in time during which a data frame is transmitted between a transmission nod...  
WO/2019/142198A1
A phased array anti-jamming device, comprising a plurality (N) of antennas and a plurality of splitters connected to the antennas and adapted to split an RF stream received from the antennas. The phased array anti-jamming device further ...  
WO/2019/144075A1
A system and method for generating a random number from an IP network is provided. A first datagram (210) is transmitted from a first system (106) to a second system (108) and back to the first system (106). A second datagram (212) is tr...  
WO/2019/120555A1
Disclosed herein is an IRCM system (1), that is designed to be installed on a platform (A) for protection against IR- guided missiles and to be connected to a MWS (2) installed on said platform (A), wherein said MWS (2) is configured to ...  
WO/2019/059864A3
The present invention relates to a system (1) and method (100) for keeping PAPR (Peak-to-Average Power Ratio) value at a desired level by use of artificial noise used for physical layer security in OFDM (Orthogonal Frequency Division Mul...  
WO/2019/111024A1
A system for disrupting Radio Frequency communication of a plurality of unmanned aircraft. The system comprises: a directional antenna; a transmitter; a drive system connected to the directional antenna and configured to move the directi...  
WO/2019/104490A1
The present invention relates to the technical field of VR/AR devices. Disclosed are an anti-interference method and apparatus in a scene of multiple VR/AR devices, for use in solving the interference problem due to the same frequency of...  
WO/2019/102390A1
A cellular tracking device (107) comprising a communication module (109), an antenna module (108) and a circuit (105) for limiting the emissions of a tracking device (107), said circuit (105) comprising: a connection input (1050) for con...  
WO/2019/093475A1
This interference signal generation device comprises: a frequency conversion unit that shifts the frequency of an input signal, thereby converting the same to another frequency; and a control unit that changes, over time, the amount by w...  
WO/2019/074573A1
An apparatus includes a capsule (102) configured to be launched or carried towards an unmanned aerial vehicle (UAV) (204, 410). The apparatus also includes a directed energy device within or carried by the capsule. The directed energy de...  
WO/2019/059352A1
This interference signal generation device comprises: a first converter that converts the frequency of an input signal on the basis of the center frequency of a frequency band to be subjected to interference; and a second converter that ...  
WO/2019/052507A1
A method and apparatus for preventing millimetric waves from being used in modeling and imaging. The method comprises: by detecting received radio waves, determining whether a surrounding device emits the millimetric waves (S101); when i...  
WO/2019/051500A1
A method for operating a satellite, wherein a beam frequency-assignment schedule for the satellite is based on rain fade information. And a communications payload for a satellite that is capable of implementing the changes required by th...  
WO/2019/034019A1
Device and method are disclosed for downlink gain compensation at a radio unit. According to an embodiment, the device comprises a pre-distortion circuit, a digital gain adjuster, a gain determiner and a first gain controller. The pre-di...  
WO/2019/028429A1
Methods, systems, and apparatus, including computer programs encoded on a storage device, for triggering an alarm during a sensor jamming attack. In one aspect, a monitoring system sensor unit is disclosed that includes a sensor, a commu...  
WO/2019/023832A1
A control method and device for interfering with an unmanned aerial vehicle, and an interference system. The method comprises: obtaining a wireless operating signal of an unmanned aerial vehicle received by a detector (S101); determining...  
WO/2019/023829A1
Disclosed in embodiments of the present invention are an unmanned aerial vehicle interference method and interference device. The method comprises: obtaining positioning information of an unmanned aerial vehicle; controlling, according t...  
WO/2019/012441A1
Encoding element (100) at least selectively transparent to an infrared or ultraviolet light radiation, incident thereon on a first incidence surface (101), wherein - in the volume defined by said encoding element (100) - a plurality of a...  
WO/2018/227926A1
Disclosed are a method and system for implementing private network communication. The system comprises: a micro base station, a gateway, and a jammer. The jammer is used for jamming any radio signal of frequency bands not of a private ne...  
WO/2018/231737A1
This disclosure describes systems, methods, and devices related to enhanced sounding signals for device ranging operations. A device may determine a first combined Golay sequence based at least in part on a first Golay sequence and a sec...  
WO/2018/227927A1
Disclosed in the present application is a shielding method and device for wireless signals. The method comprises: sending by a first network device a reselection signaling to a terminal which accesses a second network device of a public ...  
WO/2018/227215A1
A communication system is provided for use of cinder block to re-radiate an RF signal. The system overcomes limitations of prior art techniques which attempt to work either through/around the cinder block or concrete as RF obstruction. I...  
WO/2018/224488A1
Disclosed is a radio frequency communication and jamming device configured for physically secured friendly radio frequency communication and for jamming hostile radio frequency communication, the radio frequency communication and jamming...  
WO/2018/219250A1
Disclosed are a method and device for generating a scrambling code sequence, which fall within the technical field of communications. The method comprises: determining a scrambling code sequence according to the configuration parameters ...  
WO/2018/217495A1
A portable countermeasure device is provided comprising one or more directional antennae, one or more disruption components and at least one activator. The portable countermeasure device further comprises a body having a dual-grip config...  
WO/2018/214885A1
Provided is a radio frequency interference processing method. The method comprises: acquiring a first signal intensity value of a first radio frequency antenna; determining whether the first signal intensity value is lower than a preset ...  
WO/2018/212704A1
The invention relates to a method to detect and jam an electromagnetic transmission comprising the following steps; a. detect 1 electromagnetic radiation from an electromagnetic radiating source, b. determine the type of the received ele...  
WO/2018/204917A1
Methods and systems for identifying occupied areas of a radio frequency (RF) spectrum, identifying areas within that RF spectrum that are unusable for further transmissions, and identifying areas within that RF spectrum that are occupied...  
WO/2018/184186A1
Provided are a signal interference circuit and device, used for interfering with the remote control signal of an unmanned aerial vehicle; a signal interference circuit (200) comprises a sawtooth-wave generator circuit (1), a noise circui...  
WO/2018/186672A1
An eavesdropping surveillance system combined with a crime prevention system and an eavesdropping surveillance method thereof are disclosed. The eavesdropping surveillance system of the present invention can perform eavesdropping surveil...  
WO/2018/184231A1
A jamming device includes a periodic signal generating circuit configured to generate a periodic signal, a noise generating circuit configured to generate a noise signal, and a sweep-signal generating circuit coupled to the periodic sign...  
WO/2018/184492A1
Disclosed in the embodiments of the present invention are a method for improving Wi-Fi performance, and a terminal, the method comprising: a terminal determines whether a current working Wi-Fi channel is subject to HDMI signal interferen...  
WO/2018/182915A1
Provided is a method and a computer device for performing the method for defending a perimeter against a small unmanned aerial system (sUAS). The method includes detecting a presence of a wireless access point (WAP) associated with a sUA...  
WO/2018/170044A1
Certain example embodiments relate to speech privacy systems and/or associated methods. The techniques described herein disrupt the intelligibility of the perceived speech by, for example, superimposing onto an original speech signal a m...  
WO/2018/170045A1
Certain example embodiments relate to speech privacy systems and/or associated methods. The techniques described herein disrupt the intelligibility of the perceived speech by, for example, superimposing onto an original speech signal a m...  
WO/2018/170052A1
Certain example embodiments relate to speech privacy systems and/or associated methods. The techniques described herein disrupt the intelligibility of the perceived speech by, for example, superimposing onto an original speech signal a m...  
WO/2018/147604A1
The present invention relates to a portable drone jammer, in which a jamming radio wave generation unit and a jamming radio wave emission unit are miniaturized and which is configured to be used by being detachably attached to a rail of ...  
WO/2018/146706A1
A system (1) and a process are described, for monitoring and controlling a use of at least one mobile communication device (7) on board of at least one vehicle by the driver of a vehicle when driving.  
WO/2018/140993A1
The invention relates to an antenna arrangement for eavesdropping-proof, wireless, inductive-coupling-based data transmission between a reader and a transponder, comprising a data transmission antenna, an interference signal generator an...  
WO/2018/142216A1
A method and an apparatus for generating cover images for steganography are provided. The steganographic framework is designed based on an image generation system. The apparatus may encode a message to obtain a binary sequence. The appar...  
WO/2018/144576A1
A technique for adaptively disrupting UAVs detects a target UAV using a camera, monitors the target UAV's communications using a directional antenna aligned with the camera, and attempts to communicate with the target UAV to request that...  
WO/2018/140860A1
Systems and methods are provided which allow computer programs or other entities to share user data and information so that users may be authenticated and their preferences shared among entities in networked environments and machines. Cr...  
WO/2018/129612A1
A method and system for communicating with an unmanned aerial vehicle (UAV) over a cellular network. The UAV need not be the same type or model and may have different communications protocols. A coded message transmitted over the cellula...  
WO/2018/132796A1
A physical layer based technique secures wireless communication between a transmitter and receiver. The technique involves obfuscating the preamble data of the baseband signal through unique keys that are generated at the transmitter and...  
WO/2018/119898A1
The present invention relates to the technical field of wireless communications, disclosed herein are a blocking signal configuration method and device suitable for use in a multi-antenna system, which may improve the implementability of...  
WO/2018/121903A1
An assembly of a standard RFID/NFC element and a scrambling element for outputting wireless noise in response to a wireless request signal from a terminal, such as NFC, RFID or the like. The scrambling element has a noise generating circ...  
WO/2018/114010A1
The present invention relates to a method and apparatus to prevent vibration-based re- identification of a wireless communication device. Existing wireless communication devices are extremely susceptible to eavesdropping and device track...  

Matches 1 - 50 out of 5,870