H04K3/224

Systems and methods for geo-fencing device communications

Systems and methods for UAV safety are provided. An authentication system may be used to confirm UAV and/or user identity and provide secured communications between users and UAVs. The UAVs may operate in accordance with a set of flight regulations. The set of flight regulations may be associated with a geo-fencing device in the vicinity of the UAV.

Method for improving Wi-Fi performance and terminal
11096072 · 2021-08-17 · ·

A method for improving Wi-Fi performance and a terminal the method includes determining, by a terminal, whether a currently working Wi-Fi channel is interfered by an HDMI signal and whether strength of a received Wi-Fi signal is less than or equal to a preset signal strength threshold, where the terminal is configured with a Wi-Fi module and an HDMI port; and if the currently working Wi-Fi channel is interfered by the HDMI signal, and the strength of the received Wi-Fi signal is less than or equal to the preset signal strength threshold, controlling, by the terminal, a Wi-Fi antenna most greatly interfered by the HDMI signal to stop receiving/sending a signal. According to the embodiments of the present disclosure, interference from the HDMI signal to the Wi-Fi signal can be reduced, and Wi-Fi performance can be improved without increasing hardware complexity and hardware costs.

Circular patch array for anti-jam GPS

The system and method of global positioning system (GPS) anti-jam (AJ) AJ antennas utilizing a circular array of patch antennas. In some cases the circular array is conformal. The elements are single patch, dual band (L1/L2) and are linearly polarized. A mode former and progressive phase tapers are used.

Automatic external RF gain calibration and continuous jamming measurement

A system and method provide automatic RF path gain calibration independent of RF interference levels to preserve solution trust capabilities. After a system is powered ON, or a new antenna is attached (hot swap), a smart antenna assembly combined with a jammer power estimator within an RF receiver functions to autonomously measure internal gains within the RF path, calibrate the new antenna installation, and thereby measure a level of interference associated with the external environment from that point forward. A controller commands the antenna calibration retrieving antenna details and RF path gain calibration while measuring local jamming at the receiver input. Should the controller determine a level of jamming effectiveness is present, it offers a user a display of the local jamming levels enabling the user accurate theater decision making regarding the accuracy and availability of desirable signal.

IDENTIFYING POTENTIAL ATTACKS AGAINST CELLULAR NETWORKS

Aspects of the present invention disclose a method for identifying indications of an attack on a cellular network. The method includes one or more processors scanning a geographic area of a cellular network, wherein the geographic area includes a plurality of transceivers of the cellular network. The method further includes identifying a symptom that impacts a transceiver of the cellular network based at least in part on connectivity between a computing device and the plurality transceivers of the cellular network. The method further includes performing one or more assessments on the transceiver of the cellular network impacted by the symptom. The method further includes determining whether the symptom of the cellular network is associated with an attack on the cellular network based at least in part on the one or more assessments.

Systems and Methods for Distributed P25 LMR Radio Vulnerability Management and Real-Time Interference Monitoring

A threat monitoring and vulnerability management system is disclosed. The system includes one or more sensors configured to scan a frequency spectrum of a project 25 (P25) network and to collect data on the P25 network. The system further includes a server coupled to the sensors and configured to receive the collected data from the plurality of sensors, compare the collected data with previously stored historical data to determine whether an anomaly exists within data patterns of the collected data, responsive to determining that the anomaly exists, determine at least one of: whether use of a cloned radio that mimics an authorized connection occurs, whether jamming of a radio frequency (RF) communication occurs, or whether jamming of a voice communication occurs within the P25 network by comparing the collected data with preset thresholds, and send a real-time alert to a dispatch and control console unit coupled to the server and the P25 network in response to determining that some of the collected data exceeds at least one of the preset thresholds, such that the dispatch and control console unit provides one or more corrective actions to the P25 network.

Methods and systems for controlled communication in wireless charging

A method is provided for controlling communication in wireless charging. The method comprises: controlling wireless power transfer with a device; receiving a communication signal from the device; generating a jamming signal based on the communication signal from the device; and applying the jamming signal to the communication signal to obtain a jammed communication signal. A device is also provided for controlling communication in wireless charging. The device is configured to control wireless power transfer and receive a communication signal. The device comprises: a jamming circuit configured to generate a jamming signal based on the received communication signal, wherein the device is further configured to apply the jamming signal to the received communication signal to obtain a jammed communication signal.

System and Method for Defending Unmanned Aerial Vehicles from Hijack Cyber Attacks

The system and methods described herein aids in the defense of unmanned vehicles, such as aerial vehicles, from wifi cyber attacks. Such attacks usually do not last long and in the case of many point-to-point command and control systems, the attacks originate from close proximity to the unmanned vehicle. The system and methods described herein allow a team to rapidly identify and physically respond to an adversary trying to take control of the unmanned vehicle. Another aspect of the embodiment taught herein is to allow for the location of a wifi signal in a hands-free manner by able to visualize the source of the signal using an augmented reality display coupled to an antenna array.

SYSTEM FOR MEASURING THE TEMPERATURE IN A SEVERE ATMOSPHERE ENVIRONMENT, RECEPTION ANTENNA
20210108969 · 2021-04-15 ·

A system for measuring temperature in a sterilization autoclave, including a temperature transducer positionable inside a sterilization chamber of the autoclave and a receiver positionable outside the sterilization chamber. The receiver includes a reception antenna and a receiving electronic circuit connectable with a process controller of the autoclave. The receiving electronic circuit is configured to receive a temperature signal through the reception antenna, provide a control signal as a function of the temperature signal, and transmit the control signal to the process controller. The temperature transducer includes a hermetically closable transducer housing, temperature probes, a transmission antenna, an electronic transduction circuit, and a primary battery. The reception antenna of the receiving device is configured to transmit signals at two or more different frequencies.

Systems and methods for distributed P25 LMR radio vulnerability management and real-time interference monitoring

A threat monitoring and vulnerability management system is disclosed. The system includes one or more sensors configured to scan a frequency spectrum of a project 25 (P25) network and to collect data on the P25 network. The system further includes a server coupled to the sensors and configured to receive the collected data from the plurality of sensors, compare the collected data with previously stored historical data to determine whether an anomaly exists within data patterns of the collected data, responsive to determining that the anomaly exists, determine at least one of: whether use of a cloned radio that mimics an authorized connection occurs, whether jamming of a radio frequency (RF) communication occurs, or whether jamming of a voice communication occurs within the P25 network by comparing the collected data with preset thresholds, and send a real-time alert to a dispatch and control console unit coupled to the server and the P25 network in response to determining that some of the collected data exceeds at least one of the preset thresholds, such that the dispatch and control console unit provides one or more corrective actions to the P25 network.