Abstract: The present application at least describes a non-transitory computer readable medium including program instructions that when executed by a processor effectuate a set of actions. The program instructions include causing a scan of a radio frequency spectrum to detect one or more radio signals transmitted within a pre-defined area. The program instructions also include causing a capture of a radio signal of interest from the one or more radio signals. The program instructions also include demodulating the radio signal of interest to determine coded sensor data carried thereon. The program instruction further include decoding the coded sensor data to determine a characteristic of the sensor data. The program instruction further include generating an alert based on the characteristic of the sensor data.

Abstract: A system may be configured to predict total electron content (TEC) in an ionosphere. Some embodiments may: provide a machine learning (ML) model; obtain a dataset; input the dataset into the ML model; predict, for a predetermined number of days, the TEC using the ML model; and observe a performance improvement over the obtained dataset based on the prediction, the prediction being made for a region having a number of ground transmitters satisfying a sparseness criterion.

Abstract: Methods, systems, and apparatuses, among other things, may detect and store activity in videos based on a spatiotemporal graph representation. Spatiotemporal proximity graphs may be built based on one or more received tracks and may include one or more nodes and each node may include one or more attributes associated with a corresponding entity. One or more spatiotemporal relationships may be identified between the entities based on each spatiotemporal proximity graph one or more activities of the entities may be identified based on the spatiotemporal relationships.

Abstract: An artificial intelligence (AI) system may be configured to efficiently annotate most if not all unlabeled image data. Some embodiments may: provide, to an object-detection, machine-learning (ML) model, a plurality of unlabeled data such that the object-detection model predicts a plurality of regions; correct at least one vertex of bounds of at least one of the regions such that the bounds fit tighter around an object; convert the regions to first subregions by cropping the first subregions from the unlabeled data; and provide the first subregions to an embedding, ML model configured to output feature vectors for each of the first subregions.

Abstract: Methods, systems, and apparatuses, among other things, may perform persistent object tracking and reidentification through detection and continuous feature comparison. For example, video frames may be received (e.g., from a camera, an application, or a data storage device) and an object of interest may be detected at a first position in a video frame and the object of interest may be detected at a second position in another video frame. A track associated with the object of interest may be generated based on the detected first and second positions of the object of interest.

Abstract: A system may be configured to detect an unseen object. Some embodiments may: train a machine learning (ML) model, with training data and with both a positive-support content item and a negative-support content item; and predict, via the trained ML model, presence, within a region, of an object in a newly-obtained content item. The object may (i) not have previously been used to train the ML model and (ii) be among a background and a candidate object present in the newly-obtained content item.

Abstract: Methods, devices, and systems are described for free space optical communication. An example device can comprise a laser, a modulator configured to cause the laser to output an optical signal comprising a data signal and a beacon signal, a defocuser optically coupled to the laser and configured to receive the optical signal and control a beam divergence of the optical signal, an optical interface configured to receive the optical signal from the defocuser and output the optical signal into free space, and a controller configured to cause the defocuser to adjust the beam divergence based on an operational mode of the laser.

Abstract: The patent application is directed to a method for determining if a cellular attach on a communication system is active, include the step of identifying a base station router (BSR) in the communication system via a cellular scan. The method also includes a step of determining a distribution curve for a predetermined criteria, including a calculated mean and calculated standard deviation, based on survey data for the predetermined criteria from the cellular scan that is associated with a public land mobile network (PLMN) of a single carrier in a single radio access technology (RAT). The method also includes a step of determining that an event directed to cellular connectivity is present in the communication system. The method further includes a step of determining that the cellular attack associated with the BSR is active based on the determined distribution curve and the determined event.

Abstract: The housing relates to apparatus, systems, and methods for robust, adaptable, and deployable computing devices and radio systems. An embodiment can be the housing for a C-sUAS that can be deployed to detect, identify, locate and defeat hostile sUASs and locate the sUAS operators and that can be ruggedized and efficiently deployed for use in various power- and space-constrained mobile platforms and at fixed locations. An embodiment can be housing for a C-sUAS that operates under severe environmental conditions.

Abstract: A marine vessel for amphibious operations carries a land military vehicle which is secured by a cable and winch arrangement to the deck of the vessel and also positioned by means of a torsion bar. The military vehicle can be moved fore and aft to vary the longitudinal center of gravity of the vessel as a function of water speed so as to a transition the hydrodynamic hump of the vessel to obtain maximum speed with minimum power. The movement of the vehicle is controlled by the vehicle operator who manipulates the recovery winch. The vessel is under the control of the vehicle operator by means of a flexible control cable and a control box which is disposed within the vehicle.

Abstract: A clamp for multiple electrical cables has a band of a hard but resilient plastic material which encloses a number of electrical cables and the ends of the band are connected by a one-piece locking member. The ends of the band each have spaced lateral flanges thereon to define a transverse slot therebetween and the locking member is received within the slots such that when the ends of the band are drawn together end portions of the locking member are closely received under the flanges to secure the lamp tightly around the cables.

Abstract: A line drop compensator device for an aircraft flight line electrical distribution system has a plurality of service points connected at spaced locations along a three-phase power line and the current flow at each service point is sensed. In response to the sensed current flow, capacitance is added between the conductor lines and neutral of the power line so as to correct the voltage in proportion to the demand. Compensation is thus added proportional to the current drawn from the line.