A method and circuit for providing adaptive suppression of signal crosstalk appearing on a common return wire in a signal cable connected to a device. The method steps comprise connecting an adjustable negative resistance circuit between the common wire terminal and a common point at the device; determining an auxiliary current (Iaux) such that is flowing through at least one of the cable wires and returns through the common wire; sensing the voltage between selected at least one of the cable wire terminals at the device port and the common point, while ensuring that this level is substantially affected by Iaux; measuring a level of the sensed voltage according to a predefined level measurement procedure; and adjusting the negative resistance so as to nullify said voltage level, thereby effectively cancelling the common wire ohmic resistance.
An impulse radio (IR) ultra-wide band (UWB) transceiver adapted for a rake receiver is provided herein. This may be implemented as follows: on the transmitter side, the input data is converted to N-parallel streams having different delays, each stream is transmitted by an impulse radio signal with defined different carrier frequency. On the receiver side, the multicarrier RF signal is converted into base band signal, emulating multipath channels, so that rake receiver technique is used for an optimal demodulation of the received signal.
An optical seismic surveying system including, a multibeam laser source including a plurality of laser-sources, a Diffractive-Optical-Element (DOE), an imager and a processor. The laser-sources direct respective laser-beams toward a single common focal point. The DOE is located at a single common focal point and configured to split each laser-beam into a plurality of laser-beams, toward an instantaneous area of interest. The laser-beams impinging on the instantaneous area of interest produce a laser spot assemblage including a plurality of laser spots. The imager acquires a plurality of defocused images of speckle patterns produced by diffused reflections of the laser spots. The speckle pattern correspond to a respective laser spot and thus to a respective sensing point in the instantaneous area of interest. The processor determines a relative displacement between corresponding speckle patterns in sequential pairs of images and determines a respective time-signal for each sensing point representing vibrations thereat.
Method/system for determining pose of camera using another camera imaging common scene, by capturing first scene image with first camera and obtaining first camera pose by georegistering to 3D-model, extracting scene features in first image, determining 3D coordinates of extracted features by mapping to 3D model, transmitting feature descriptors and feature coordinates, capturing second scene image with second camera, extracting scene features in second image and matching with first image features, determining second camera pose using 3D scene coordinates and corresponding 2D projections in second image. Method/system for determining pose of one camera using another camera in same camera assembly with known relative pose between cameras in assembly, by capturing image of scene with first camera and determining 3D coordinates of first camera by georegistering to 3D-model, and determining pose of second camera based on determined global pose of first camera and relative pose between second camera and first camera.
A method for compensating for power supply ripple that is present in a supply voltage that is generated by a switched-mode power supply, the method comprising: calculating an estimated power supply ripple that is expected to be generated by the power supply; generating a digital ripple compensation signal, based on the estimated power supply ripple; combining a digital baseband (BB) signal and the digital ripple compensation signal to generate a digital modified BB signal; converting the digital modified BB signal to an analog radio frequency (RF) signal; and amplifying the analog RF signal, based on the supply voltage, to generate a RF transmission signal.
A multi-channel communication device comprising: a plurality of receivers, each usable for receiving radio-signals within a corresponding distinct selected frequency band within a spectrum; a Radio Frequency (RF) power splitter usable for splitting an input radio- signal into a plurality of split radio-signals; and a filter bank that comprises a plurality of Surface Acoustic Wave (SAW) filters each having a respective distinct passband within the spectrum, and a routing mechanism configured to route each of the split radio-signals into respective selected SAW filters of the SAW filters, selected in accordance with the selected frequency band of each of the receivers, wherein each of the selected SAW filters outputs a corresponding output radio-signal, in the passband of the respective SAW filter, to a respective receiver of the receivers.
H04B 7/08 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
H04B 1/00 - Details of transmission systems, not covered by a single one of groups Details of transmission systems not characterised by the medium used for transmission
H04B 1/22 - Circuits for receivers in which no local oscillation is generated
7.
TWO-STAGE PHOTO-ACOUSTIC EXCITATION SENSING SYSTEMS AND METHODS
Generally, systems and methods for inspecting an object are disclosed. The method may include: scanning the object at a first resolution by alternately and repeatedly photo-acoustically exciting and sensing each of multiple first regions on the object to yield multiple first outputs; determining, based on at least one of the multiple first outputs, at least one first region of the multiple first regions that includes at least one zone and a specific depth of the at least one zone below a surface of the object; scanning the at least one first region that includes the at least one zone at a second resolution by alternately and repeatedly photo-acoustically exciting and sensing each of multiple second regions in the at least one first region thereof to yield multiple second outputs; and determining, based on at least one of the multiple second outputs, specified parameters of the at least one zone.
Methods and systems for determining real-world geographic locations of multiple interconnected members are disclosed. The method may include: determining distances between at least some members of a first subgroup of the multiple members; determining movement vectors of members of a second subgroup of the multiple members; determining real-world geographic locations of members of a third subgroup of the multiple members; and determining, based on the distances between the at least some members of the first subgroup, the movement vectors of the members of the second subgroup and the real-world geographic locations of the members of the third group, the real-world geographic locations of the multiple members.
G01S 19/45 - Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
9.
A SYSTEM AND METHOD FOR SHORT RESPONSE TIME DATA SERVICES THROUGH CELLULAR NETWORKS
A User Equipment (UE) comprising: a modem capable of connecting to a Universal Mobile Telecommunications System (UMTS) cellular network for transmitting and receiving data, the modem having an idle state, one or more intermediate states, and a dedicated channel state, wherein: (a) in the idle state the modem is not connected to the UMTS cellular network, (b) in the dedicated channel state the modem is connected to the UMTS cellular network via a dedicated communication channel, and (c) in each of the intermediate states the modem is not connected to the UMTS cellular network via the dedicated communication channel and a first time-period required to transition from the corresponding intermediate state to the dedicated channel state is shorter than a second time-period required to transition from the idle state to the dedicated channel state; and a processing resource configured to: maintain a state transitioning regime of the UE, wherein the state transitioning regime includes: (a) preventing at least one transition of the UE to an idle state for at least one time-period; and (b) periodically transitioning the UE to the idle state, thereby enabling the modem to switch from the UMTS cellular network to the LTE cellular network.
A method and a system for photoacoustic inspection of a part are provided herein. The method may include the following steps: photo-acoustically exciting a predetermined position in a predetermined region on a part by pulsed laser illumination, to yield ultrasonic excitation of the part; coherently illuminating a predetermined location in the predetermined region on the part; detecting an illumination scattered from the predetermined location; determining, based on the scattered illumination, a plurality of sequence of two or more temporally-sequential de-focused speckle pattern images, wherein each of the sequences corresponds to one of the predetermined illuminated locations; and determining a set of translations, each determined based on the sequences, wherein each translation in the set is determined based on two temporally-sequential speckle patterns images in the respective sequence.
Systems and methods are provided, which use at least two coherent light sources with known phase relations between them, which are configured to illuminate a target with at least two corresponding spots, an optical unit comprising a mask and configured to focus, onto a sensor, interfered scattered illumination from the spots of the target, passing through the mask, to yield a signal, at least one shifter configured to shift a frequency of at least one of the coherent light sources to provide a carrier frequency in the signal, and a processing unit configured to derive a vibration frequency of the target from the sensor signal with respect to the carrier frequency. The vibration frequency of the target is separated from the carrier frequency and speckle disturbances may be attenuated or avoided.
Systems and methods are provided for vibrations detection in a scene. Systems comprise at least one coherent light source configured to illuminate the scene, an optical unit configured to focus scattered light from the scene onto a pixelated detector, the detector configured to provide pixel intensity signals, and a processing unit configured to analyze the pixel intensity signals over the pixels of the detector to derive a vibration spectrum of elements in the scene that correspond to the pixels. The signal modulation at each pixel may be used to indicate the vibrations of the scene element(s) that corresponds to the pixel(s). Vibration information concerning the scene may be used to direct other methods of vibration measurements, such as speckle interferometry, according to derived vibration images of the scene.
Power amplification units and methods are provided, which use a combiner and an auxiliary signal to feed the power amplifier (PA) with a signal that prevents or reduces operation of higher amplification stages during off periods of the received RF signal. The PA output is delivered through an output matching circuit configured to pass the RF signal and attenuate the auxiliary signal; and the combiner combines the RF signal and the auxiliary signal through respective filters to generate the RF input signal to the PA. An auxiliary signal generator may be configured to generate the auxiliary signal with relation to the RF signal as having a frequency spectrum lower than a cutoff RF frequency. Resulting lower power consumption, particularly in case of low duty cycle RF signals, reduces heating, enables longer battery use and increases reliability performance.
H03F 1/02 - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
H01Q 1/00 - Details of, or arrangements associated with, antennas
H04B 1/00 - Details of transmission systems, not covered by a single one of groups Details of transmission systems not characterised by the medium used for transmission
14.
SYSTEM FOR OBJECT AUTHENTICITY DETECTION INCLUDING A REFERENCE IMAGE ACQUISITION MODULE AND A USER MODULE AND METHODS THEREFOR
A system: for determining the authenticity of an abject including a reference-image acquisition module for acquiring a reference-image, The reference-image acquisition -module Includes a light-source, an imager including an imaging-sensor, and a database coupled with the imager for storing the reference-image. The light-source directs circumferential-light toward an authentication-region on the object The circumferential-light is at least one of collimated and telecentric. The circumferential-light impinges: on the authentication-region from a plurality of different azimuthal directions and at a predetermined oblique angle relative to the normal of a plane defined by said object A portion of the circumferential-light is reflected from the authentication-region toward a -specular reflection region and another portion is scattered from the authentication-region. The imager is focused on the. authentication-region and acquires a reference-image. The reference-image is a focused image of the scattered light. The reference-image includes image features related to surface features scattering phenomena of the authentication-region.
Multi-channel communication devices and methods are provided, which employ a filter bank, connected between antenna(s) and wideband converter(s), that comprises many narrowband surface acoustic wave (SAW) filters having respective distinct frequency bands within a bandwidth of the wideband converter(s). For example, devices may be configured as multi- channel receivers with SAW filters replacing current heterodyne circuitry and achieving effective separation of reception channel and effective attenuation of adjacent blocking signals in a compact device. In other examples, devices may be configured as multi-channel transmitters and/or transceivers, possibly having a variable number of channels, to realize compact multi-channel radio.
A drone control system for controlling a drone which includes an onboard-flight-system previously configured to receive navigational-data in a format compliant with a standard navigational data transmission protocol. The system includes a remote-sensor and an interface. The remote sensor is located remotely from the drone and determines the position of the drone relative to the remote-sensor. The interface, coupled with the remote-sensor, produces a pseudo GPS signal indicating the position of the drone and to provide the pseudo GPS signal to an onboard-flight-system of the drone. The format of the pseudo GPS signal is fully compliant with the standard navigational data transmission protocol employed by the onboard-flight-system. The onboard-flight-system is receives inertial tracking data from an onboard inertial-measuring-unit and the pseudo GPS signal, and tracks the position of the drone by merging the inertial tracking data and the pseudo GPS signal and navigates the drone accordingly.
Navigation systems and methods are provided. A classifier is configured to transform a received image of a terrain into a classified image in which patches of pixels from the received image are represented as being in one of a specified number of material classes, each associated with respective terrain parameters. A physical traversability module is configured to determine, for the material parameters, a terrain topography and given vehicle parameters, a degree of traversability of the vehicle through the terrain as represented by the received image, to yield a traversability map. A routing module is configured to derive traversability measure(s) for route(s) through the classified image and with respect to the traversability map, between a given origin and a given destination or within a region with respect to a user-defined mission. A graphical user interface is configured to display the route(s) according to the traversability measure(s).
System for determining authenticity of an object in which a light-source directs collimated or telecentric light toward an authentication-region on the object, which impinges on the authentication-region at a predetermined angle relative to the normal of a plane defined by the object, a portion of the light is reflected from the authentication-region and another portion of the light is scattered from the authentication-region, an imager, focused on the authentication-region, acquires a focused-image of the scattered-light, the image includes image-features related to surface-features-scattering-phenomena of the authentication region, the processor determines correspondence between part of the acquired image and a corresponding part of a stored-image corresponding to the authentication-region, the processor identifies the object as authentic when the acquired-image corresponds to the stored image, the processor identifies the object as non-authentic when the acquired-image does not corresponds the stored-image.
G06K 9/28 - Image acquisition using discrete sensing elements at predetermined points
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G06K 19/14 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by radiation
19.
SYSTEM AND METHOD FOR DETERMINING AUDIO CHARACTERISTICS FROM WITHIN A BODY
A system for simultaneously detecting audio-characteristics within a body over multiple body surface locations comprising a coherent light: source directing at least one coherent light beam toward the body surface locations, an imager acquiring a plurality of defocused images, each is of reflections of the coherent light beam torn the body surface locations. Each image includes at least one speckle pattern, each corresponding to a respective coherent Sight beam and further associated with a time-fag. A processor, coupled with the imager, determines in-image displacements over time of each of a plurality of regional speckle patterns according to said acquired images. Each one of the regional speckle patterns is at least a portion of a respective speckle pattern. Each regional speckle pattern is associated with a respective different body surface location. The processor determines the audio-characteristics according to the in-image displacements over time of the regional speckle patterns.
Method and system for addressing line of sight (LOS) blockage in satellite communication networks are provided herein. The method may include the following stages: obtaining forecast input parameters; forecasting at least one future LOS blockage in two or more communication links established between at least one communication satellite and at least one platform-mounted communication system having at least one antenna, based on the forecast input parameters; and addressing the future LOS blockage by applying at least one of: rerouting the communication links between the at least one platform-mounted communication system and at least one of the communication satellite; changing a power level of at least one of the communication links; changing at least one of: spreading, modulation and coding of at least one of the communication links; changing mobility parameters of the platform-mounted communication system.
H01Q 3/24 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
H04B 7/08 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
21.
SUPERCAPACITOR CONFIGURATIONS WITH GRAPHENE-BASED ELECTRODES AND/OR PEPTIDE
One embodiment is an EDLC with a capacitor cell that includes two electrodes of opposite polarity aligned in parallel, and a peptide separator disposed between the electrodes. The separator may be a peptide coating on an electrode surface. Another embodiment is an electrode for an electrochemical energy storage device, such as an EDLC, the electrode including graphene and coated with peptide. The peptide may operate as a separator for the EDLC. A further embodiment is an electrode for an electrochemical energy storage device, the electrode-unit including: two graphene layers, CNTs, and electrolyte. The graphene layers are arranged separated along a first axis and aligned with parallel surfaces, where at least one graphene layer is coated with peptide. The CNTs are arranged along a second axis orthogonal to the first axis and disposed between the graphene layers. The electrolyte is impregnated within the volume defined between the graphene layers and CNTs.
H01G 11/28 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collectorLayers or phases between electrodes and current collectors, e.g. adhesives
H01G 11/36 - Nanostructures, e.g. nanofibres, nanotubes or fullerenes
Method and system for coordinating between separate image sensors imaging a mutual area of interest at different imaging perspectives. A target point is designated on a first image acquired by a first image sensor. Feature points are defined and characterized on the first image and transmitted over a data communication link to a second image sensor. The target point is identified in a second image acquired by the second image sensor using an iterative convergence operation. The first iteration involves locating feature points in the second image corresponding to the defined first image feature points. Subsequent iterations involve locating feature points in a subregion of the second image corresponding to decreasing subsets of first image feature points, the subregion defined by the feature point cluster located in the previous iteration. When a termination condition is reached, the remaining cluster of located feature points is established to represent the target point.
A mobile ad-hoc communications network with multi-interface dynamic routing includes multiple mobile nodes with mobile wireless communication and multiple mobile nodes with mobile wireless communication and satellite communication. At least some of the mobile nodes with mobile wireless communication are dynamically-switched between operating as an ordinary node or as a backbone node. At least some of the mobile nodes with mobile wireless communication and satellite communication are dynamically-switched between operating as an ordinary node or as a backbone node. All of the mobile nodes communicate over a dynamically-formed ordinary communication link. Mobile nodes operating as backbone nodes additionally communicate over a dynamically-formed backbone link. Data is routed in the network by an ad-hoc multi-interface dynamic routing which routes data between the mobile nodes by mobile wireless communication and by satellite communication in accordance with respective communication capabilities of the mobile nodes, so as to incorporate satellite communications into the network.
In an AMFC, in the formation of a CCM, the anode catalyst layer is selectively cross- linked while the cathode catalyst layer is not cross-linked. This has been found to provide structural stabilization of the CCM without loss of initial power value for a CCM without cross-linking.
A safety assembly for ammunition includes: - a housing (110) with an opening covered by a nose cap (130); - a firing pin (140) directed downwards having a head (132) with a shoulder protruding radially; - a locking means (146) which when in a safe position, rests between the shoulder and the housing; and - an interrupter (150) rotatably attached to a shaft (152) affixed to the housing and located along an axis parallel to the firing pin, wherein the interrupter has a first cavity (154) and a second cavity (160) for a detonator, wherein the head of the firing pin is configured to move downwards responsive to setback forces, thus releasing the locking means and forcing the tip of the firing pin to enter the first cavity, wherein the firing pin is further configured to move upwards responsive to a cease of the setback pulling the tip of firing pin out of the first cavity.
F42C 15/24 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
F42C 15/188 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a rotatable carrier
A bandwidth manager manages respective bandwidths for base stations in a communication network. The base stations are controlled by an access controller which dynamically allocates communication resources for the base stations. Each of the base stations has a respective allocated bandwidth. The bandwidth manager includes a signaling monitor and a bandwidth allocator. The signaling monitor monitors signaling between the access controller and at least one of the base stations so as to predict upcoming changes to a demand for communication resources for at least one monitored base station. The bandwidth allocator updates the respective allocated bandwidths in accordance with the predicted upcoming changes.
An electric double-layer capacitor (EDLC) and method for manufacturing thereof. The ELDC includes at least one capacitor cell with two parallel current collectors, two opposite polarity electrodes, a separator, a rigid dielectric frame, and at least one evacuation mechanism. Each electrode is disposed on a respective current collector, and composed of activated carbon impregnated with aqueous electrolyte. The frame is disposed along the perimeter on the surface of a current collector and enclosing the electrodes. The evacuation mechanism removes superfluous fluid material from the capacitor cell interior. The evacuation mechanism may be a compartment in the frame, operative to collect residual electrolyte that seeps out from the electrodes, or a capillary formed within the frame and extending into a portion of the electrode, the capillary composed of a porous hydrophobic material and operative to evacuate discharged gases from the electrodes out of the EDLC.
A low energy radar comprising a radar signal generator generating a radar signal, a transmitter transmitting the radar signal via a transmitting antenna, a receiving array including plurality of receiving antennas and a plurality of receivers, each antenna being coupled with a corresponding receiver, each of at least selected ones of the receivers receives a respective signal corresponding to reflections of the transmitted radar signal from a scene, a processor including a radar signal processor, the radar signal processor determines a scene reflections map, the scene reflections map includes values representing reflection characteristics from each selected location in the scene, a detector, detecting objects in the scene and the corresponding locations thereof according to the scene reflection map and a clutter map, the clutter map includes values representing clutter reflection characteristics from each selected location in the scene, and a power controller, after the transmitter transmitted the radar signal and the receiving array received the signal corresponding to reflections of the transmitted radar signal, the power controller shuts down at least one of the radar signal generator, the transmitter and the receiving array.
G01S 13/02 - Systems using reflection of radio waves, e.g. primary radar systemsAnalogous systems
G01S 7/41 - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisationTarget signatureTarget cross-section
G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
G01S 13/42 - Simultaneous measurement of distance and other coordinates
patents
