18th week of 2021 patent applcation highlights part 47 |
Patent application number | Title | Published |
20210132148 | SYSTEMS AND METHODS FOR NON-INVASIVE CURRENT ESTIMATION - A technique for non-invasively assessing current drawn by a device under test (DUT) by monitoring a supply voltage to the DUT. Frequency data for the DUT may be generated and used to form a current estimation model. First and second voltages are simultaneously measured using first and second test probes electrically connected to the DUT, while the first test probe is connected at a current source, and while the second test probe is connected at a DUT load that is configured to draw current from the current source. The current drawn by the DUT is then assessed by applying the current estimation model to the measured first and second voltages. In one case, the current drawn by the DUT is estimated without insertion of a circuit component into the DUT or extraction of a circuit conductor from the DUT. | 2021-05-06 |
20210132149 | FLASH SWITCH ON-OFF DETECTION CIRCUIT AND ELECTRONIC DEVICE - An on-off detection circuit for a flash switch includes an on-off detection module and a control module. An input end of the on-off detection module is connected with a power supply through the flash switch, the on-off detection module is configured to acquire a digital signal as a detection level according to an electromagnetic signal generated by input current. An input end of the control module is connected with an output end of the on-off detection module, to receive the detection level and determine an on-off state change of the flash switch according to the detection level. | 2021-05-06 |
20210132150 | MOTOR FAULT DETECTION SYSTEM BASED ON COUPLING INJECTION OF HIGH FREQUENCY SIGNALS - A motor fault detection system is based on coupling injection of high-frequency signal. An input end of the motor is connected with the high-frequency detection signal source circuit through the coupling circuit to inject a high-frequency detection signal into the motor winding; an input end of the high-frequency detection signal source circuit is connected with an output end of the controller to control the output of the high-frequency detection signal; an output end of the response signal processing circuit is connected with an input end of the controller to send the received voltage or current response signal to the controller; and the controller judges whether the motor has a fault and the degree of the fault by analyzing the response signal after applying an excitation. | 2021-05-06 |
20210132151 | METHOD AND APPARATUS FOR ESTIMATING STATE OF HEALTH OF BATTERY - A method of estimating a state of health of a battery, the method being performed by a computing apparatus, the method including: preparing a trained artificial neural network; generating input data by measuring at least one parameter of a battery; acquiring a plurality of output values each corresponding to a plurality of classes by inputting the input data into the trained artificial neural network; and generating a state of health estimation value of the battery using a plurality of preset health state sections each corresponding to the plurality of classes and the plurality of output values each corresponding to the plurality of classes. | 2021-05-06 |
20210132152 | METHOD OF MANAGING BATTERY, BATTERY MANAGEMENT SYSTEM, AND ELECTRIC VEHICLE CHARGING SYSTEM HAVING THE BATTERY MANAGEMENT SYSTEM - A method of managing a battery is disclosed. The method is capable of efficiently managing a battery by measuring a state of charge (SOC) and an energy storage amount of the battery within a short time. A battery management system and an electric vehicle charging system having the battery management system are also disclosed. | 2021-05-06 |
20210132153 | BATTERY MANAGEMENT SYSTEM, BATTERY MANAGEMENT METHOD, AND METHOD OF MANUFACTURING BATTERY ASSEMBLY - A battery management system includes a control device and a storage. The storage stores at least one trained neural network. The trained neural network includes an input layer that accepts input data that represents a numeric value for each pixel in an image where a prescribed CCV waveform (a CCV charging waveform or a CCV discharging waveform) of a secondary battery is drawn in a region constituted of a predetermined number of pixels, and when input data is input to the input layer, the trained neural network outputs a full charge capacity of the secondary battery. The control device estimates the full charge capacity of a target battery by inputting input data obtained for the target battery into the input layer of the trained neural network. | 2021-05-06 |
20210132154 | METHOD AND SYSTEM FOR TESTING THE STRUCTURAL INTEGRITY OF A METAL JOINT - A method is for testing the structural integrity of a metal joint such as a weld. The method includes applying stress to the metal joint, and measuring a resistance of a circuit including the metal joint during application of the stress to the metal joint. A structural integrity of the metal joint is determined by comparing the measured resistance with a baseline resistance. | 2021-05-06 |
20210132155 | BMS SEMICONDUCTOR DEVICE HAVING LEAKAGE CURRENT DETECTION FUNCTION AND LEAKAGE CURRENT DETECTION METHOD THEREOF - A Battery Management System (BMS) semiconductor device having a leakage current detection function, may include: a comparator configured to compare a voltage of a balancing terminal connected to a positive voltage terminal of a battery cell and a voltage of a lower sensing terminal connected to a negative voltage terminal of the battery cell and output a result of the comparing; an ADC connected to the upper sensing terminal and the lower sensing terminal and configured to sense a voltage difference between the upper sensing terminal connected to the positive voltage terminal of the battery cell and the lower sensing terminal; and a leakage current determining unit connected to the ADC and the comparator and configured to set a variable threshold value according to the difference value sensed by the ADC and determine whether a leakage current is generated by using the result of the comparing in the comparator and the variable threshold value. | 2021-05-06 |
20210132156 | Battery Diagnostics System and Method Using Second Path Redundant Measurement Approach - A method for providing battery diagnostics includes: measuring a first voltage across a first battery cell of a rechargeable battery via a first measurement path of a network using a first measurement circuit, measuring the first voltage including taking at least one first voltage sample during a first time period using the first measurement circuit; measuring a second voltage across the first battery cell via a second measurement path of the network using a second measurement circuit, measuring the second voltage including taking at least one second voltage sample during the first time period using the second measurement circuit, where the second measurement path of the network is different from the first measurement path of the network; comparing the measured first voltage with the measured second voltage; and generating a diagnostic output signal based on the comparison. | 2021-05-06 |
20210132157 | ELECTRICAL DEVICE PARTIAL DISCHARGE MONITORING - An electrical device includes a housing defining a chamber, a power converter arranged within the chamber, and a sensor. The sensor includes a coil arranged within the chamber and in radio frequency communication with the power converter to detect partial discharge of a voltage potential applied to the power converter. Health monitoring systems and health monitoring methods are also described. | 2021-05-06 |
20210132158 | POWER AMPLIFIERS TESTING SYSTEM AND RELATED TESTING METHOD - A testing system includes: a signal generator arranged to generate a testing signal; a dividing circuit coupled to the signal generator for providing a plurality of input signals according to the testing signal; and a plurality of power-amplifier chips coupled to the dividing circuit for being tested by generating a plurality of output signals for a predetermined testing time according to the plurality of input signals respectively. | 2021-05-06 |
20210132159 | CAPACITOR CHARGING PERFORMANCE MONITORING SYSTEM OF PRODUCTION MACHINE - A system for monitoring the charging performance of a capacitor in an electric circuit in a manufacturing machine installed in a production line includes a charging voltage detecting section for detecting the charging voltage of the capacitor. A control device of the production machine measures, as the charging time, a time from starting charging to a time when a specified charging complete determination voltage that can be used to determine when the charging voltage of the capacitor has reached full charge is reached based on the charging voltage of the capacitor detected by charging voltage detecting section, determines whether the capacitor has deteriorated by determining whether the measured charging time is equal to or less than a specified deterioration threshold value, and upon determining that the capacitor has deteriorated, issues a warning to an operator via a display or sound. | 2021-05-06 |
20210132160 | AUTOMATED PIM MATRIX TEST FIXTURE AND METHODS OF OPERATING THE SAME - A test fixture includes a first body including a plurality of slots that are configured to receive a plurality of antenna connectors, respectively; a second body opposing the first body and including a slot that is configured to receive a test connector; and a lateral positioning component that is configured to move the second body relative to the first body so as to position the test connector across from one of the plurality of antenna connectors. The second body is further configured to push the test connector into the one of the plurality of antenna connectors across from the test connector so as to mate the test connector to the one of the plurality of antenna connectors. | 2021-05-06 |
20210132161 | MAGNETIC FIELD MEASURING APPARATUS - A magnetic field measuring apparatus includes a digital FLL circuit. The digital FLL circuit includes a first amplifier configured to amplify voltage output by a superconducting quantum interference device in accordance with strength of a magnetic field strength, an AD converter configured to, convert analog signals to first digital values, an integrator configured to integrate the first digital values output by the AD converter, a DA converter configured to receive an integral value output by the integrator as a second digital value, convert the second digital value to voltage, and output the converted voltage, a signal switcher configured to connect an output of the first amplifier or an output of the DA converter to an input of the AD converter, and a storage unit configured to store a correction value that corrects the integral value received by the DA converter. | 2021-05-06 |
20210132162 | MAGNETIC PIG POSITIONING SYSTEM AND METHOD - A system for determining the position of a pig located inside a pipe including a magnetic field source attached to the pig; at least one magnetic field sensor provided on the outside of the pipe and configured to measure magnetic field parameters; and a processor configured to receive magnetic field parameters from the at least one magnetic field sensor and computing a position of the magnetic field source relative to a given reference position. The method includes: establishing a magnetic field representation of the magnetic field provided by the magnetic field source; in-situ measuring at least two magnetic field parameters outside the pipe with a magnetic field sensor at a measuring position relative to the reference position; computing the source position of the magnetic field source relative to the reference position based on data comprising the in-situ measured magnetic field parameters and the magnetic field representation. | 2021-05-06 |
20210132163 | QUANTUM VECTOR MAGNETOMETER BASED ON NANOSCALE FIN WAVEGUIDE - A device includes a substrate and nanoscale fin formed from a first material, a RF emitter that emits energy in a range of radio frequencies, and a waveguide formed from a second material. The device further includes a bichromatic directional coupler configured to couple pump and probe laser light into the waveguide. The waveguide is positioned proximate to the nanoscale fin along a coupling length such that the pump laser light propagating within the waveguide is coupled into the nanoscale fin from evanescent wave overlap along the coupling length. The pump laser light causes the first material to absorb the probe laser light when energy emitted by the RF emitter is at one or more frequencies dependent on a magnetic field. The device further includes a processor configured to determine a magnetic field strength of the magnetic field based on an identification of the one or more frequencies. | 2021-05-06 |
20210132164 | CONFORMING POSTERIOR RADIO FREQUENCY (RF) COIL ARRAY FOR A MAGNETIC RESONANCE IMAGING (MRI) SYSTEM - Various methods and systems are provided for a flexible, lightweight, low-cost radio frequency (RF) coil array of a magnetic resonance imaging (MRI) system. In one example, a posterior RF coil assembly for a MRI system includes an RF coil array including a plurality of RF coils and a deformable material housing the plurality of RF coils, each RF coil comprising a loop portion of distributed capacitance wire conductors and a coupling electronics unit coupled to each of the plurality of RF coils. | 2021-05-06 |
20210132165 | COIL ELEMENT, LOCAL COIL APPARATUS, AND MAGNETIC RESONANCE IMAGING APPARATUS - According to one embodiment, a coil element includes an extendable and contractible coil and a capacitor. The capacitor is connected to the coil and has an electrostatic capacity which changes due to a physical change in response to extension or contraction of the coil. | 2021-05-06 |
20210132166 | MAGNETIC RESONANCE IMAGING APPARATUS - A magnetic resonance imaging apparatus according to an embodiment includes a static magnetic field generator, a transmit/receive system, and an acquiring means. The static magnetic field generator is configured to apply a second static magnetic field in addition to a first static magnetic field serving as a reference. The transmit/receive system is configured to perform transmitting and receiving at a single frequency. The processing circuitry is configured to acquire a magnetic resonance signal by employing the transmit/receive system. The transmit/receive system is configured to perform transmitting and receiving at a resonance frequency of a hydrogen nucleus in a state in which the first static magnetic field is applied and is configured to perform transmitting and receiving at a resonance frequency of a nuclide different from the hydrogen nucleus in a state in which the second static magnetic field is applied in addition to the first static magnetic field. | 2021-05-06 |
20210132167 | COMPENSATION OF MAGNETIC FIELD COMPONENTS CAUSED BY A PERIODIC MOTION OF A COLD HEAD - The present invention provides a method for compensation of periodic B | 2021-05-06 |
20210132168 | GRADIENT SHIELD COIL WITH MEANDERING WINDING FOR A MAGNETIC RESONANCE IMAGING APPARATUS - The invention relates to a gradient shield coil ( | 2021-05-06 |
20210132169 | MRI HEAD COIL COMPRISING AN OPEN SHIELD - Various embodiments of the present disclosure are directed towards a magnetic resonance imaging (MRI) head coil comprising an open shield. A transmit coil surrounds a phased array receive coil and comprises a resonant birdcage structure. The resonant birdcage structure comprises multiple transmit rungs spaced in a first closed path, and inter-rung spacing at one or more first locations on the first closed path is greater than at a remainder of the first closed path. The open shield surrounds the transmit coil and comprises a non-resonant birdcage structure. The non-resonant birdcage structure comprises multiple shield rungs spaced in a second closed path. The shield rungs are elongated in parallel with the transmit rungs, and inter-rung spacing at one or more second locations on the second closed path is greater than at a remainder of the second closed path. Further, the second location(s) respectively and radially border the first location(s). | 2021-05-06 |
20210132170 | SYSTEM AND METHOD OF ROBUST QUANTITATIVE SUSCEPTIBILITY MAPPING - Exemplary quantitative susceptibility mapping methods, systems and computer-accessible medium can be provided to generate images of tissue magnetism property from complex magnetic resonance imaging data using the Bayesian inference approach, which minimizes a cost function consisting of a data fidelity term and two regularization terms. The data fidelity term is constructed directly from the complex magnetic resonance imaging data. The first prior is constructed from matching structures or information content in known morphology. The second prior is constructed from a region having an approximately homogenous and known susceptibility value and a characteristic feature on anatomic images. The quantitative susceptibility map can be determined by minimizing the cost function. Thus, according to the exemplary embodiment, system, method and computer-accessible medium can be provided for determining magnetic susceptibility information associated with at least one structure. | 2021-05-06 |
20210132171 | Medical Imaging - Methods of assessing or obtaining an indication of the presence of a cognitive disorder by analysing microstructural changes in regions of the brain are provided. The invention particularly relates to methods of assessing or obtaining an indication of the presence of types of dementia, for example Alzheimer's disease, by analysing changes in minicolumns in regions or layers of the cortex of the brain or of the whole brain. | 2021-05-06 |
20210132172 | COMPOSITION FOR REMOVING NOISE FROM MRI AND PAD USING THE SAME - Provided are a composition for removing noise from an MRI, including a compound having a hydrogen bond, and a pad using the same, wherein the composition is applied in a non-invasive way causing no side effects in the human body, the composition is not toxic and thus is safe, the composition is used in the manner of covering an area requiring diagnosis or being attached to an MRI apparatus, and thus has the advantages of improving images of a relatively wide range, and obtaining more accurate image information than restoration of a distorted image by a program, and the composition is expected to be easily commercialized by companies because the costs required to manufacture the composition are low. | 2021-05-06 |
20210132173 | HIGH INTEGRATED AND INTELLIGENT TX FRONT-END USED IN MRI SYSTEM - In a device and method for monitoring an RF transmission circuit of an MRI device: a first power measurement signal is acquired that indicates a voltage of a first RF signal provided by an RF power amplifier of the RF transmission circuit; two second power measurement signals are received that each indicate a voltage of one second RF signal, the two second RF signals being generated based on the first RF signal by a bridge of the circuit and transmitted via an RF transmit coil; an inverse matrix calculation is performed based on the two second power measurement signals to obtain a voltage calculation value; the voltage calculation value is compared with the first power measurement signal; an operational status of the RF transmission circuit is determined based on a difference between the voltage calculation value and a voltage value of the first power measurement signal. | 2021-05-06 |
20210132174 | METHOD FOR CALIBRATING VERTICALITY OF PARTICLE BEAM AND SYSTEM APPLIED TO SEMICONDUCTOR FABRICATION PROCESS - The present invention provides a method for calibrating verticality of a particle beam. The method includes: providing a baseplate having a first sensor and a second sensor; emitting the particle beam to the first sensor of the baseplate from an emitter, such that a first datum is collected when the first sensor receives the particle beam; emitting the particle beam to the second sensor of the baseplate from the emitter, such that a second datum is collected when the second sensor receives the particle beam; calculating a first calibrating datum based on the first datum and the second datum; and adjusting the baseplate or the emitter based on the first calibrating datum if the first calibrating datum is out of a first predetermined range. | 2021-05-06 |
20210132175 | ON-BOARD DEVICE, VEHICLE COMMUNICATION SYSTEM, AND DIRECTION-OF-ARRIVAL ESTIMATION METHOD - An on-board device, a vehicle communication system, and a direction-of-arrival estimation method are provided. An on-board device transmits signals from a plurality of transmission antennas that are provided for a vehicle at positions that are separate from each other, and performs processing corresponding to a response signal from a portable device that has received the signals. The on-board device includes: a reception unit that receives the response signal via a plurality of reception antennas that are provided for the vehicle at positions that are separate from each other; and an estimation unit that estimates a direction of arrival of the response signal based on a phase difference of the response signal received via the plurality of reception antennas. | 2021-05-06 |
20210132176 | AUTHORITY VEHICLE MOVEMENT DIRECTION DETECTION - Described herein are systems, methods, and non-transitory computer readable media for determining a direction of movement of an authority vehicle in relation to another vehicle such as an autonomous vehicle and initiating or ceasing a vehicle response measure that may have previously been initiated based on the determined direction of movement. A signal source associated with the authority vehicle emits a periodic acoustic signal that is received at one or more audio capture devices, which may be provided at various locations on an exterior of a vehicle. One or more signal characteristics of the acoustic signal can be determined such as frequency, sound intensity, and/or phase. Detected signal characteristic(s) of the acoustic signal can be analyzed, and in some cases, compared against known information such as an expected frequency of the acoustic signal to determine the direction of movement of the authority vehicle in relation to the vehicle. | 2021-05-06 |
20210132177 | POSITION INFORMATION ESTIMATION IN A DISTRIBUTED RADIO FREQUENCY (RF) COMMUNICATIONS SYSTEM - Position information estimation in a distributed radio frequency (RF) communications system is provided. Embodiments disclosed herein facilitate high-precision estimations of positions, orientations, velocities, and acceleration of network nodes in a distributed RF network (e.g., including base stations and vehicles, such as aircraft or unmanned aerial systems (UASs)). Modern radio systems must adapt to limited spectral access by reducing spectrum demand and increasing operational efficiency. In this regard, an RF system is provided which simultaneously performs positioning and communications tasks. This system specifically addresses the issue of spectral congestion by employing an extremely efficient positioning strategy and using a joint waveform that simultaneously enables both tasks. This efficiency in turn supports more users in a given frequency allocation. | 2021-05-06 |
20210132178 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - An information processing apparatus includes: a first receiving unit that receives a radio signal through a first wireless communication channel; a second receiving unit that receives a radio signal through a second wireless communication channel in which position measurement accuracy and radio wave reachable range are higher and shorter respectively than those in the first wireless communication channel; a calculation unit that calculates information on position of the information processing apparatus by using field intensity of the radio signal received by the first or second receiving unit; and a control unit that causes the calculation unit to calculate the information based on the radio signal received by the first receiving unit, and, if a preset condition is satisfied, performs switching control to cause the calculation unit to calculate the information based on the radio signal received by the second receiving unit. | 2021-05-06 |
20210132180 | INCREASED POSITIONING RESOLUTION - A method of determining a location of a measurement device includes determining, at a server: measurement times of first positioning signal measurements, of first positioning signals from first positioning signal sources and/or a subset of positioning signal sources of second positioning signal sources. The method includes sending at least one measurement command from the server to the measurement device to cause the measurement device to obtain the first positioning signal measurements in accordance with the measurement times and/or obtain second positioning signal measurements of second positioning signals sent from the subset of positioning signal sources. The method includes: receiving, at the server from the measurement device, measurement data corresponding to the first positioning signal measurements and/or the second positioning signal measurements; and determining, at the server, the location of the measurement device based on the measurement data. | 2021-05-06 |
20210132182 | ESTIMATION AND TRACKING OF POSITION INFORMATION IN A DISTRIBUTED RADIO FREQUENCY (RF) COMMUNICATIONS SYSTEM - Position information estimation in a distributed radio frequency (RF) communications system is provided. Embodiments disclosed herein facilitate high-precision estimations of positions, orientations, velocities, and acceleration of network nodes in a distributed RF network. The distributed RF communications system incorporates a series of estimation processes which makes it susceptible to propagation of errors. To ensure robustness of the distributed RF communications system, relative positions of network nodes are tracked by iteratively tracking parameters used for estimating position information. Some embodiments take advantage of Kalman filtering algorithms by leveraging principles directed by physics. At every network node, several filtering algorithms can be employed to synchronize clocks, track delay between multiple-input multiple-output (MIMO) antennas and estimate position and orientation of other network nodes. Information from other sensors like global positioning system (GPS) and inertial navigation system (INS) can also be employed to further improve estimation processes. | 2021-05-06 |
20210132183 | Methods and Apparatus for Wideband Localization - A transceiver may wirelessly transmit a communication signal at a first frequency and a sensing signal at a second frequency. The communication signal may include a command that causes a backscatter node to modulate impedance of an antenna, and thereby modulate reflectivity of the backscatter node. The communication signal may also deliver wireless power to the backscatter node. While the impedance is being modulated in response to the command, the transceiver may transmit the sensing signal and measure wireless reflections. The power of the sensing signal may be much lower than that of the communication signal. The transceiver may frequency hop the sensing signal in a wide band of frequencies and take measurements at each frequency in the hopping. Based on the measurements, a computer may determine time-of-flight or phase of a reflected signal from the backscatter node and may estimate location of the backscatter node with sub-centimeter precision. | 2021-05-06 |
20210132184 | A METHOD FOR SUPPRESING NOISE AND INCREASING SPEED IN MINIATURIZED RADIO FREQUENCY SIGNAL DETECTORS - The invention discloses design of the wideband single, dual or three channel signal detector with ability to suppress interference and crosstalk from two PLL LO signal generators ( | 2021-05-06 |
20210132185 | FREQUENCY MODULATED CONTINUOUS WAVE RADAR RECEIVERS, MODULES THEREFOR, AND RELATED METHODS - Disclosed is a digital signal processing unit, for a frequency modulated continuous wave, FMCW, radar receiver module and configured to receive a digital in-phase signal and a digital quadrature signal and to provide an interference-suppressed signal, wherein the digital signal processing unit comprises: a processing subunit, configured to provide an an-band intermediate frequency, IF, signal and an image-band IF signal; an image-band processing unit configured to identify an interference window, estimate an interference crossing moment, and mirror the image band IF signal across the interference window about the interference crossing moment; and combinatorial logic configured to subtract the mirrored signal from the in-band IF signal. Related FMCW radar receiver modules and methods for interference suppression also disclosed | 2021-05-06 |
20210132186 | DIGITALLY MODULATED RADAR TRANSMITTER MODULES, SYSTEMS AND METHODS - A digitally modulated radar, DMR, transmitter module is disclosed comprising: a sequence generator, configured to generate a repeating digital sequence signal based on a relatively low-frequency clock signal; a mixer configured to combine the digital sequence signal with at least one phase-delayed copy of the digital sequence signal, to provide a combined signal; and a modulator configured to modulate a relatively high-frequency carrier signal, in dependence on the combined signal, to provide a modulated signal. Corresponding systems and methods are also disclosed. | 2021-05-06 |
20210132187 | PROCESSING METHOD FOR COHERENT MIMO RADAR USING DDMA WAVEFORMS - A method for processing coherent MIMO radar processing DDMA waveforms and includes NT | 2021-05-06 |
20210132188 | METHOD AND DEVICE FOR SEPARATING ECHO SIGNALS OF SPACE-TIME WAVEFORM ENCODING SYNTHETIC APERTURE RADAR IN ELEVATION - A method and a device for separating echo signals of STWE SAR in elevation are provided. The method includes that: aliasing echo signals of multiple sub-swaths are received; for a target sub-swath of the multiple sub-swaths, multiple sub-beams associated with the target sub-swath are generated, the multiple sub-beams pointing to different directions of the target sub-swath respectively, and a null of each of the multiple sub-beams being used for deep nulling suppression on echo signals of sub-swaths except the target sub-swath; and the aliasing echo signals are processed based on the multiple sub-beams and multiple nulls corresponding to the multiple sub-beams to generate a target echo signal of the target sub-swath. | 2021-05-06 |
20210132189 | SYNTHETIC GENERATION OF RADAR, LIDAR AND ULTRASOUND MEASUREMENT DATA - A method for generating synthetic measurement data indistinguishable from actual measurement data captured by a first physical measurement modality. The first physical measurement modality is based on emitting an interrogating wave towards an object and recording a reflected wave coming from the object in a manner that allows for a determination of the time-of-flight between the emission of the interrogating beam and the arrival of the reflected wave. The method includes: obtaining a first compressed representation of the synthetic measurement data in a first latent space, wherein this first latent space is associated with a first decoder that is trained to map each element of the first latent space to a record of synthetic measurement data that is indistinguishable from records of actual measurement data of the first physical measurement modality, and applying the first decoder to the first compressed representation, so as to obtain the sought synthetic measurement data. | 2021-05-06 |
20210132190 | IMPLEMENTING NON-POINT TARGETS USING DIRECT SYNTHESIS OF RADAR SIGNALS - A method of emulating echo signals reflected from an elongated target during radar testing includes identifying first and second end points do the target; acquiring a radar signal from a radar sensor that includes multiple receive elements; generating emulated echo signals, responsive to the acquired radar signal, corresponding to target points on the target, including the first and second end points and reference points located on a line connecting the first and second end points, by repeatedly identifying descriptive attributes corresponding to each of the target points during an integration period of the radar sensor, where the descriptive attributes are identified by interpolating between the corresponding descriptive attributes of the first and second end points; and applying the emulated echo signals to the receive elements of the radar sensor, respectively, during the integration period, where radar sensor calculates a relative position of the target using the descriptive attributes. | 2021-05-06 |
20210132191 | RADAR DEVICE AND TARGET DETECTION METHOD - This radar device can recognize the type of a specific target (in particular, a two-wheeled vehicle) with high precision, using only the radar device. The radar device comprises: a transmission unit that transmits a transmission wave, based on a transmission signal, toward the target; a receiving unit that receives a reflected wave generated by the transmission wave being reflected by the target, and thereby generates a reception signal; and a target detection unit that acquires information on the target on the basis of the transmission signal and the reception signal. The target detection unit calculates the relative speeds of a plurality of detection points within the same target, and determines the type of the target on the basis of the spread of the relative speeds. | 2021-05-06 |
20210132192 | SIGNAL PROCESSING APPARATUS - The noise calculation unit applies a statistical process for the measurement signal of the first number of data to calculate the noise value. The calculation threshold setting unit sets the calculation threshold based on the noise value. The period determination unit determines a period where a difference between the measurement signal and a moving average value calculated in a previous cycle exceeds the calculation threshold, to be the non-calculation period of the baseline. The moving average calculation unit is configured such that the measurement signal in a period excluding the non-calculation period is moving-averaged for each second number of data to calculate the moving average value. The first number of data and the second number of data are set independently. | 2021-05-06 |
20210132193 | Sensor Assembly for Vehicles - A sensor assembly includes a first body that rotates a sensor component about an axis, and a second body coupled to the first body to form a separation gap. The separation gap extends radially inward from a gap inlet to a sealed barrier of the second body. The separation gap may be configured with a set of air guide structural features, to induce formation of eddies from air intake received through the gap inlet, as air from the air intake moves inward towards the sealed barrier. | 2021-05-06 |
20210132194 | CHROMATIC POINT SENSOR OPTICAL PEN WITH ADJUSTABLE RANGE AND ADJUSTABLE STAND-OFF DISTANCE - A chromatic point sensor (CPS) optical pen provides a signal usable to measure a distance to a surface, and includes an axial chromatic aberration portion arranged to receive source radiation from an aperture, output it toward the surface as a focused measurement beam having axial chromatic dispersion, receive reflected radiation from the surface and focus it proximate to the aperture. The axial chromatic aberration portion includes a first axially dispersive focusing element that receives the source radiation and focuses it at a first focal region, a second axially dispersive focusing element that receives the radiation from the first focal region and focuses it at a second focal region, and a third axially dispersive focusing element that receives the radiation from the second focal region and outputs the measurement beam. Lengths between the first , second and third axially dispersive focusing elements are adjustable (i.e., resulting in an adjustable range). | 2021-05-06 |
20210132195 | MOBILE APPARATUS AND METHOD FOR CAPTURING AN OBJECT SPACE - A mobile apparatus for capturing an object space includes a frame and at least one single scanner mounted on the frame and a multiple scanner mounted on the frame above the single scanner. This multiple scanner has a plurality of emission units integrated in one component, a receiver for detecting reflected rays, and a scanning device for changing the emission directions of the signal beams of the emission units. Furthermore, the mobile apparatus has an evaluation device which is designed to generate and output in real time, at least from the reflected rays detected by the receiver, a graphical representation of those areas of the object space through which the mobile apparatus can be moved and/or has been moved. Finally, the mobile apparatus has a data interface designed to output data to a memory device for post-processing. A corresponding method for capturing an object space is also disclosed. | 2021-05-06 |
20210132196 | FLAT OPTICS WITH PASSIVE ELEMENTS FUNCTIONING AS A TRANSFORMATION OPTICS AND A COMPACT SCANNER TO COVER THE VERTICAL ELEVATION FIELD-OF-VIEW - A 360-degree Field-Of-View LIDAR is capable of delivering light to a target and detecting light reflected off a given target in order to determine the distance from the light source to the target over the entire 360-degree surrounding. The LiDAR has such capability because of the built-in light source, detector, and scanner which can steer the light source and the detector to cover the entire azimuthal angles. In some embodiments, the LiDAR has the unique arrangement of the light source and the detector which are fixed to a base while the rotating scanner and a flat optics contains motor, scanning mirror, and metasurface/flat optics to project the light source to its surroundings as well as receiving light from surroundings. In particular, flat optics perform the function of transforming the reference frame and beam steering in the vertical direction. | 2021-05-06 |
20210132197 | LIDAR PULSE ELONGATION - Systems and methods are disclosed to identify a presence of a volumetric medium in an environment associated with a LIDAR system. In some implementations, the LIDAR system may emit a light pulse into the environment, receive a return light pulse corresponding to reflection of the emitted light pulse by a surface in the environment, and determine a pulse width of the received light pulse. The LIDAR system may compare the determined pulse width with a reference pulse width, and determine an amount of pulse elongation of the received light pulse. The LIDAR system may classify the surface as either an object to be avoided by a vehicle or as air particulates associated with the volumetric medium based, at least in part, on the determined amount of pulse elongation. | 2021-05-06 |
20210132198 | TIME-OF-FLIGHT SENSOR AND CONTROL METHOD THEREOF - A time-of-flight sensor for capturing a three-dimensional (3D) image of an object, includes: a light source for emitting projection light pulses at the object according to a projection signal; an array of pixel circuits for sensing reflection light pulses and storing image charges according to the reflection light pulses; and a processing circuit for calculating a first sum of first portions of the image charges and a second sum of second portions of the image charges to generate a distance information signal of the 3D image of the object simultaneously, wherein in one accumulation period, the first portion of the image charges is generated during a first time period, and the second portion of the image charges is generated during a second time period, wherein the second time period is directly following the first time period in the accumulation period. | 2021-05-06 |
20210132199 | DISTANCE SENSOR AND DISTANCE IMAGE SENSOR - A range sensor includes a silicon substrate and a transfer electrode. The silicon substrate includes a first principal surface and a second principal surface opposing each other. The silicon substrate is provided with a charge generation region configured to generate a charge in response to incident light and a charge collection region configured to collect charges from the charge generation region, on the first principal surface side. The transfer electrode is disposed between the charge generation region and the charge collection region on the first principal surface. A region of the second principal surface corresponding at least to the charge generation region is formed with a plurality of protrusions. The plurality of protrusions includes a slope inclined with respect to a thickness direction of the silicon substrate. A (111) plane of the silicon substrate is exposed as the slope at the protrusion. A height of the protrusion is 200 nm or more. | 2021-05-06 |
20210132200 | ERROR CORRECTION METHOD OF SCANNING LiDAR - A method of correcting an error of a scanning LiDAR, may include: an initial value setting operation of designating an initial emission time point among a plurality of laser light emission time points of the scanning LiDAR; a designated value increasing operation of designating a laser light emission time point after the initial emission time point among the plurality of laser light emission time points; an error determining operation of determining whether an error is generated in the measurement time interval by applying the designated laser light emission time point to a pre-prepared error algorithm; and an error correcting operation of correcting the error of the measurement time interval by use of a pre-prepared correcting algorithm when it is determined that the error is generated in the measurement time interval. | 2021-05-06 |
20210132201 | METHOD AND COMPUTER DEVICE FOR CALIBRATING LIDAR SYSTEM - Methods and devices for determining axis of symmetry of self-driving vehicle (SDV) and for calibrating a Light Detection and Ranging (LIDAR) system are disclosed. One of the axes of the system of coordinates of the LIDAR system extends along a normal direction of a ground surface. the method includes acquiring a subset of detected points in the system of coordinates; generating a subset of mirror-image points based on the subset of detected points; projecting the subset of mirror-image points onto the subset of detected points so as to define pairs of overlapping data points; using symmetrically opposite detected points for determining the axis of symmetry of the SDV in the system of coordinates of the LIDAR system; and calibrating the LIDAR system using an angular offset between the axis of symmetry of the SDV and an other one of the axes of the system of coordinates of the LIDAR system. | 2021-05-06 |
20210132202 | LIGHT DETECTION AND RANGING SENSORS WITH MULTIPLE EMITTERS AND MULTIPLE RECEIVERS, AND ASSOCIATED SYSTEMS AND METHODS - Systems and techniques associated light detection and ranging (LIDAR) applications are described. In one representative aspect, techniques can be used to implement a packaged semi-conductive apparatus is disclosed. The apparatus includes a substrate; a diode die carried by the substrate and positioned to emit an electromagnetic energy beam; and a shell coupled to the substrate to enclose the diode die. The shell includes an opening or a transparent area to allow the electromagnetic energy beam emitted from the diode die to pass through the shell. | 2021-05-06 |
20210132203 | CALIBRATION SYSTEM AND CALIBRATION BRACKET - The present invention relates to the field of vehicle correction, and provides a calibration system and a calibration bracket thereof. The calibration bracket includes: a base, a stand assembly and a beam assembly. The stand assembly is fixedly connected to the base. The beam assembly is supported by the stand assembly, and includes a beam, the beam being configured to mount a calibration element and including a left beam portion, a right beam portion and a connecting portion, the connecting portion being supported by the stand assembly, one end of the connecting portion being pivotally connected to the left beam portion, and the other end of the connecting portion being pivotally connected to the right beam portion. In the foregoing structure, the left beam portion and the right beam portion can respectively rotate toward each other relative to the connecting portion, to fold the beam assembly, so that a volume of the calibration bracket can be reduced to facilitate shipment. | 2021-05-06 |
20210132204 | SONAR SYSTEM WITH INCREASED TRANSVERSE BEAM WIDTH - Sonar systems and related methods are provided. A sonar system includes a transducer array having a transverse axis and a longitudinal axis disposed perpendicularly thereto. A processor is operative to associate signals with a plurality of transducers in the transducer array so as to form a first acoustic beam, which propagates in a beam first direction and has a first beam width in a first transverse plane. The first transverse plane extends along the beam first direction and contains the transverse axis of the transducer array. A beam spreading device having a curved surface is positioned relative to the transducer array such that the first acoustic beam impinges on the curved surface. Following impingement on the curved surface, the first acoustic beam propagates in a beam second direction and has a second beam width in a second transverse plane. The second beam width is greater than the first beam width. | 2021-05-06 |
20210132205 | TRANSMIT/RECEIVE SYSTEM FOR IMAGING DEVICES - A transmit/receive system for an imaging device includes a transmit circuit configured to generate and output test pulses to a transducer of a probe to cause the probe to propagate an ultrasonic wave through an object. A receive circuit is configured to receive, from the transducer, a composite signal that includes the test pulses output by the transmit circuit and a reflected signal corresponding to reflected waves sensed by the transducer in response to the ultrasonic wave propagated through the object and filter the test pulses from the composite signal and output the reflected signal in accordance with a predetermined minimum frequency of the reflected signal. | 2021-05-06 |
20210132206 | METHOD AND SYSTEM FOR DETECTING A STREAM OF BUBBLES IN A BODY OF SEA WATER - A transmitter array as well as a receiver array for acoustic waves is deployed within the SOFAR channel in the body of sea water. Contributions to the receiver signals originating from acoustic waves that have reflected off of a stream of bubbles traversing the SOFAR channel are selected. A computer may be arranged to process receiver signals from the receiver array and programmed to select those contributions to these signals. | 2021-05-06 |
20210132207 | Radar - A radar including an interface configured to receive a frequency estimation output and a synchronization signal correlation output from a radio communication device; and a processing block configured to use the received frequency estimation output and synchronization signal correlation output for velocity and range estimation. | 2021-05-06 |
20210132208 | OVER THE HORIZON RADAR (OTH) SYSTEM AND METHOD - A method for implementing a relocatable Over-The-Horizon-Radar (OTHR) including transmitting mutually orthogonal signals on each of a plurality of antenna elements of a transmitting system, and receiving and decoding the signals at a plurality of receiving systems to synthesize beams from the orthogonal signals. Each receiving system has a plurality of antenna elements fewer in number than the plurality of antenna elements of said transmitting system. The method includes connecting as a network the transmitting system, the plurality of receiving systems, and a network controller. | 2021-05-06 |
20210132209 | MIMO FREQUENCY-MODULATED CONTINUOUS-WAVE RADAR - During operation, transmitters in the electronic device provide first and second FMCW radar signals, where carrier frequencies of the first and the second FMCW radar signals have a predefined variation as a function of time over a predefined frequency range, and the predefined variation as a function of time of a second carrier frequency of the second FMCW radar signal has a predefined delay relative to the predefined variation as a function of time of a first carrier frequency of the first FMCW radar signal. Furthermore, at least a receiver in the electronic device receives first and second reflected FMCW radar signals within a bandwidth of the receiver, where, at a given time, a frequency difference between carrier frequencies of the first and the second reflected FMCW radar signals, which corresponds to the predefined delay, is less than the bandwidth (and which may be less than a predefined value). | 2021-05-06 |
20210132210 | RADAR DEVICE - Provided is a radar device that can acquire three-dimensional information while mitigating an increase in the complexity and size of the device structure. A radar device | 2021-05-06 |
20210132211 | PHYSICAL WAVEFORM OPTIMIZATION FOR MULTIPLE-BEAM MULTIFUNCTION DIGITAL ARRAYS - Systems and methods of embodiments provide a feasible approach to implementing Far-Field Radiated Emission Design (FFRED) techniques suitable for simultaneous transmission of radar and communication signals. A set of signals for transmission and a transmission direction for each signal of the set of signals may be determined. The set of signals includes at least a first signal associated with a first transmission direction and a second signal associated with a second transmission direction that is different from the first direction. An optimization problem is configured based on characteristics of an antenna array and the set of signals and then solved to identify a set of waveforms suitable for transmitting the signals. The set of waveforms may include at least two waveforms, each of the at least two waveforms configured for transmission by a different antenna element of the antenna array. The determined waveforms may be coherent in the far-field and suitable for power efficient transmission. | 2021-05-06 |
20210132212 | METHOD AND DEVICE FOR ASCERTAINING TRANSVERSE RELATIVE VELOCITY COMPONENTS OF RADAR TARGETS - A method for ascertaining a transverse velocity component of at least one radar target with the aid of a radar device, including the steps: periodically sending identically modulated, transmitted signals with the aid of a transmitting device having a defined number of transmission elements, into a defined sensing region of the radar device, during a defined measuring period; receiving at least one received radar signal reflected by the radar target, using a receiving device having a defined number of receiving elements; transmitting the received radar signal to an evaluation device and converting the received radar signal from analog to digital; carrying out a two-dimensional Fourier transformation to generate, in each instance, a velocity-distance spectrum of the digital, measured values for each combination of transmission and receiving element; detecting at least one target reflection of the radar target in light of defined, peak values in a magnitude spectrum of the velocity-distance spectrum; ascertaining a distance of the radar target from the radar device, as well as a radial velocity component relative to the radar device, from the velocity-distance spectrum; determining at least one angle of the radar target relative to the antenna; selecting the radar target, for which the transverse velocity component is intended to be ascertained; carrying out an inverse Fourier transformation of the target reflection of the radar target, selected in this manner; and ascertaining the transverse velocity component of the radar target from the transformed, measured values. | 2021-05-06 |
20210132213 | APPARATUS AND METHODS FOR MULTI-SENSOR SLAM SYSTEMS - An electronic device includes a Lidar sensor, a radar sensor, and a processor. The processor is configured to identify one or more objects from Lidar scans. The processor is configured to transmit, via the radar sensor, radar signals for object detection based on reflections of the radar signals received by the radar sensor. While the electronic device travels the area, the processor is configured to generate a first map indicating one or more objects within an area based on the Lidar scans and a second map based on the radar signals. The processor is configured to determine whether the second map indicates a missed object at the portion of the first map that is unoccupied. In response to a determination that the second map indicates the missed object, the processor is configured to modify the first map with the missed object. | 2021-05-06 |
20210132214 | SYNTHETIC APERTURE RADAR IMAGE ANALYSIS SYSTEM, SYNTHETIC APERTURE RADAR IMAGE ANALYSIS METHOD, AND SYNTHETIC APERTURE RADAR IMAGE ANALYSIS PROGRAM - A synthetic aperture radar image analysis system | 2021-05-06 |
20210132215 | Systems And Methods For Automotive Synthetic Aperture Radar - Embodiments are disclosed that for synthetic aperture radar (SAR) systems and methods. Front-end circuitry transmits radar signals, receives return radar signals, and outputs digital radar data. FFT circuits process the digital radar data without zero-padding to generate FFT data corresponding to oversampled pixel range values. A processor further processes the FFT data to generate radar pixel data representing a radar image. Further, the FFT circuits can interpolate the FFT data based upon pixel ranges using a streamlined range computation process. This process pre-computes x-axis components for pixels in common rows and y-axis components for pixels in common columns within the FFT data. For one embodiment, a navigation processor is coupled to a SAR system within a vehicle, receives the radar pixel data, and causes one or more actions to occur based upon the radar pixel data, such as an advanced driver assistance system function or an autonomous driving function. | 2021-05-06 |
20210132216 | APPARATUS FOR CORRECTING ERROR OF RADAR SENSOR FOR VEHICLE AND METHOD THEREOF - An apparatus for correcting an error of a radar sensor for a vehicle and a method thereof can correct a target measurement error of the radar sensor installed inside a bumper of the vehicle based on target information obtained from a camera image. The apparatus includes: a radar sensor that is installed inside a bumper of the vehicle to detect a target, a camera that photographs a surrounding image of the vehicle, and a controller that corrects a target detection error of the radar sensor based on target information obtained from an image photographed by the camera. | 2021-05-06 |
20210132217 | RADOME FOR A RADAR SENSOR OF A MOTOR VEHICLE AND MOTOR VEHICLE - A radome for a radar sensor of a motor vehicle, having at least one main body facing the radar sensor, through which main body radar beams are intended to pass and which is made of at least one optically non-transparent material, which radome has a first dielectric constant at least on a side facing away from the radar sensor, wherein the radome also has an optically transparent foil with a second dielectric constant which lies between the first dielectric constant and the dielectric constant of air, said foil being applied on the side facing away from the radar sensor and at least in the region of the main body through which the radar beams are intended to pass. | 2021-05-06 |
20210132218 | MAKING WEATHER INFORMATION AVAILABLE DURING BAD WEATHER - Systems and methods may be used to provide radar data before, during, or after an emergency, such as a weather emergency. An example method may include downloading radar data, at a device, saving the radar data to memory of the device, identifying that a network outage has occurred (e.g., for a network connection of the device), and causing information related to the retrieved radar data to be displayed. | 2021-05-06 |
20210132219 | METHODS FOR A MULTI-FUNCTION ELECTRONICALLY STEERED WEATHER RADAR - A weather radar with a transmission antenna array that outputs a high aspect ratio FMCW transmission beam that illuminates an area in the field of regard in elevation and may be electronically scanned in azimuth. The weather radar includes a receive array and receive electronics that may receive the reflected return radar signals and electronically form a plurality of receive beams that may be used to determine characteristics of the area in the field of regard. The receive beams may be used to determine reflectivity of weather systems and provide a coherent weather picture. The weather radar may simultaneously process the receive signals into monopulse beams that may be used for accurate navigation as well as detection and tracking of objects, such as birds, aircraft, UAVs and the like. | 2021-05-06 |
20210132220 | ICE CRYSTAL DETECTION BY WEATHER RADAR - In some examples, a system includes a weather radar device configured to transmit radar signals, receive first reflected radar signals at a first time, and receive second reflected radar signals at a second time. In some examples, the system also includes processing circuitry configured to determine a first magnitude of reflectivity based on the first reflected radar signals and determine a second magnitude of reflectivity based on the second reflected radar signals. In some examples, the processing circuitry is also configured to determine a temporal variance in reflectivity magnitudes based on determining a difference in reflectivity between the first magnitude and the second magnitude. In some examples, the processing circuitry is further configured to determine a presence of ice crystals based on the first magnitude of reflectivity, the second magnitude of reflectivity, and the temporal variance in reflectivity magnitudes. | 2021-05-06 |
20210132221 | 3D POSITIONING APPARATUS FOR UNDERWATER HIGH-PRESSURE WATER DECONTAMINATION NOZZLE - The present invention discloses a 3D positioning apparatus for an underwater high-pressure water decontamination nozzle, which comprises a variable length water gun, a high-pressure water nozzle fixed to a front end of a gun barrel of the variable length water gun by a nozzle quick lock, and a high-pressure water intake pipe connected to a rear end of the gun barrel, the gun barrel being fixed to a gun body by a water gun quick lock, and further comprises an underwater sonar 3D positioning unit arranged on the gun body, The underwater sonar 3D positioning unit comprises a sonar signal generator, a power amplifier, a sonar having one transmitting unit and three receiving units distributed equidistantly along a circumference thereof, a signal amplifier, a distance identification and correction module, a temperature and salinity measurement module, and an alarm apparatus in circuit connection. | 2021-05-06 |
20210132223 | Method and Apparatus for Ultrasound Imaging with Improved Beamforming - Disclosed herein is a method of ultrasound imaging of an object using an ultrasound transducer which comprises an array of transducer elements capable of converting sound signals into electrical signals and vice versa, comprising the following steps: A) transmitting an ultrasound beam from said ultrasound transducer into the object, by activating a first subset of said transducer elements, B) detecting reflected signals in a time resolved manner by means of a second subset of said transducer elements, wherein timing information of a detected signal is associated with information regarding the depth where the detected signal was reflected within the object subjected to imaging, and wherein the reflected signals associated with said second subset of transducer elements resemble a set of two-dimensional ultrasound data, of which one dimension resembles the various transducer elements of said second subset and the other dimension resembles depth information, C) converting said two-dimensional ultrasound data into a scan object using a receive beamforming procedure which accounts for differences in distance of individual transducer elements from a given site of sound reflection within the object, repeating steps A) to C) for different choices regarding at least one of said first and second subsets and the timing of the activation of transducer elements within said first subset, thereby obtaining a plurality of scan objects, and a step of constructing a visual image from said plurality of scan objects, wherein said receive beamforming procedure employs a machine learning based receive beamforming model for mapping said two-dimensional ultrasound data to said scan object. | 2021-05-06 |
20210132224 | CONTROL CIRCUIT OF LIGHT EMITTING AND RECEIVING DEVICE - A light emitting and receiving device includes: a light emitting element, a first light receiving element, and a second light receiving element. A reference signal generator generates a reference signal including a component of a predetermined reference frequency. A drive circuit supplies a drive signal to the light emitting element so that a feedback signal corresponding to an output of the first light receiving element matches a reference signal. A correlation detector detects an output of the second light receiving element by correlating with the component of the reference frequency. | 2021-05-06 |
20210132225 | ELECTRONIC APPARATUS AND CONTROL METHOD THEREOF - An electronic apparatus is provided. The electronic apparatus includes a sensor, a first light source configured to irradiate a first light, a second light source configured to irradiate a second light in a direction different from the first light, and a processor configured to, based on first and second reflected lights being received by the sensor as the first and second lights are reflected by an object, calculate a first distance between the electronic apparatus and an object reflecting the first light and a second distance between the electronic apparatus and an object reflecting the second light using different calculation methods. | 2021-05-06 |
20210132226 | OPTIMIZING A LIDAR SYSTEM USING SUB-SWEEP SAMPLING - A light detection and ranging (LiDAR) core is provided that transmits optical beams, and detects return optical beams. The transmitted optical beams are antiphase chirps that sweep a frequency band, and the sweep of the antiphase chirps includes multiple sub-sweeps over respective sub-bands of the frequency band. The system routes the transmitted optical beams that are launched towards a target, and receives light incident upon the target into the return optical beams. The system simultaneously measures and thereby produces multiple simultaneous measurements of first and second beat frequencies per sweep of the antiphase chirps, from the transmitted and returned optical beams, and includes a simultaneous measurement of the first and second beat frequencies per sub-sweep of the multiple sub-sweeps. And the system determines a range and velocity of the target from the multiple simultaneous measurements of the first and second beat frequencies per sweep of the antiphase chirps. | 2021-05-06 |
20210132227 | VEHICLE HEIGHT CLEARANCE SENSOR SYSTEM - The present disclosure relates to a vehicle height clearance system, comprising: an infrared emission bar; a photo-sensor bar; an alarming light bar and an electronic sign, wherein the system help in indicating if a vehicle is above a permissible height and help a driver to decide whether to enter or not to enter the vehicle into a garage or a parking lot entrance gate. The system generates two infrared lines, wherein crossing of one infrared line, indicates that the vehicle in within the permissible height and crossing of both the infrared lines indicate that the vehicle is above the permissible height and thus should not or cannot enter the garage or a parking lot entrance gate. | 2021-05-06 |
20210132228 | DEPTH SENSING USING DYNAMIC ILLUMINATION WITH RANGE EXTENSION - In one embodiment, a system includes at least one projector comprising a plurality of light emitters, where the projector is configured to project a projected pattern comprising a plurality of projected features having different locations; a camera configured to capture an image comprising a detected pattern corresponding to a reflection of the projected pattern; and one or more processors configured to: identify at least one detected feature of the detected pattern, wherein the detected feature corresponds to at least one reflection of the projected features; and activate or deactivate one or more of the light emitters based on the detected feature. The light emitters may be activated or deactivated by determining a detected feature measurement based on the detected feature, and activating or deactivating one or more of the light emitters when the detected feature measurement satisfies a threshold feature measurement condition. | 2021-05-06 |
20210132229 | HIGH DYNAMIC RANGE RECEIVER FOR A LIDAR SENSOR - A receiver circuit for a sensor includes a photosensitive input circuit and a logarithmic-signal circuit including a PN junction coupled to a pulse voltage node. The pulse voltage node may be coupled to the P-type terminal of the PN junction and an output of the photosensitive input circuit. In some examples, the receiver circuit also may include a linear-signal circuit and/or a square-root-signal circuit. | 2021-05-06 |
20210132230 | LIGHT DETECTOR, LIGHT DETECTION SYSTEM, LIDAR DEVICE, AND VEHICLE - According to one embodiment, a light detector includes an element including a photodiode. A plurality of the elements are provided. The element includes a structure body for at least a portion of the plurality of elements. The structure body surrounds the photodiode and has a different refractive index from the photodiode. At least portions of the structure bodies are separated from each other. | 2021-05-06 |
20210132231 | VEHICLE SENSOR UNIT - A vehicle sensor unit includes an infrared sensor configured to transmit an infrared ray to an outside of the vehicle, and receive an infrared ray reflected by a detection target object outside the vehicle, and a cover which is located in front of the infrared sensor in a transmission direction of the infrared ray to cover the infrared sensor and through which the infrared ray passes. A plurality of fine projection portions are formed on a surface of the cover on an opposite side of a surface on an infrared sensor side, at least in a region through which the infrared ray passes, and an interval between the projection portions that are adjacent to each other is equal to or smaller than a wavelength of the infrared ray. | 2021-05-06 |
20210132232 | LIDAR OUTPUT STEERING SYSTEMS HAVING OPTICAL GRATINGS - A LIDAR system includes a LIDAR assembly configured to output a LIDAR output signal that carries multiple different channels. A directional component has an optical grating that receives the LIDAR output signal from the LIDAR assembly. The directional component demultiplexes the LIDAR output signal into multiple LIDAR output channels that each carries a different one of the channels. The directional component is configured to steer a direction that the LIDAR output channels travel away from the LIDAR system. | 2021-05-06 |
20210132233 | SYSTEMS AND METHODS FOR SUPPLEMENTAL NAVIGATION USING DISTRIBUTED AVIONICS PROCESSING - Disclosed are methods, systems, and non-transitory computer-readable medium for distributed vehicle navigation processing for a vehicle. For instance, the method may include: by the vehicle: obtaining reference data from one or a combination of an imaging system, an antenna system, and/or a radar system of the vehicle; in response to obtaining the reference data, determining whether a GNSS signal is below a threshold; and in response to determining the GNSS signal is below the threshold, transmitting a navigation supplementation request message including the reference data to an edge node or a cloud node. By the edge node or the cloud node: in response to receiving the navigation supplementation request message from the vehicle, performing a position resolution process to determine and transmit a position of the vehicle by one or more functions. By the vehicle: performing a navigation control process based on the determined position. | 2021-05-06 |
20210132234 | APPARATUS AND METHODS FOR INTERFERENCE MITIGATION BY SATELLITE NETWORKS - A receiver determines whether an outbound carrier frequency among a plurality of outbound carrier frequencies, as received, includes interference. Based at least in part on a result of the determining, a new outbound carrier frequency is selected for the receiver. Optionally, the receiver sends an interference report to a system controller. | 2021-05-06 |
20210132235 | SECURE METHOD FOR DETERMINING THE POSITION OF A RECEIVING DEVICE - A method for determining the position of a receiving device, wherein, by the receiving device, a GNSS signal is received that is formed in accordance with a signal transmitted from a satellite of a global satellite navigation system, wherein code data and phase information of the GNSS signal are determined and a plausibility check is carried out between the code data and phase information to detect whether the GNSS signal is a manipulating signal. | 2021-05-06 |
20210132236 | MULTIPATH MITIGATION FOR MULTIBAND GNSS RECEIVER - Described herein are systems and techniques for mitigating the impact of attenuated satellite signals received at mobile devices. A mobile device receives multiple signals from a single satellite on different carrier frequencies. The mobile device calculates two pseudorange measurements, each pseudorange measurement from a different signal of the multiple signals. The mobile device calculates the difference between the two pseudorange measurements, and if the difference exceeds a first threshold and the first pseudorange measurement is larger than the second pseudorange measurement, the mobile device marks the first pseudorange measurement as impaired. If the difference exceeds a second threshold and the second pseudorange measurement is larger than the first pseudorange measurement, the second pseudorange measurement is marked as impaired. The impaired measurements may be weighted or excluded from use in calculating a position of the mobile device or in another pseudorange measurement based calculation. | 2021-05-06 |
20210132237 | METHOD AND APPARATUS FOR PERFORMING JOINT CHANNEL AND TIME ESTIMATION IN A GNSS RECEIVER - A receiver is provided for use with a global navigation satellite system (GNSS) comprising multiple satellites. The receiver comprises a receiver clock and at least one antenna for receiving multiple signals over multiple respective channels, each channel being defined by a transmitting satellite and a receiving antenna at opposing ends of the channel. The receiver further comprises at least one correlator for calculating cross-correlation functions between (i) the signals received over the multiple channels and (ii) reference versions of the navigation signals provided by the receiver. The receiver is configured to use the calculated cross-correlation functions to perform a joint estimate of (i) a clock bias of the receiver clock relative to the time reference maintained by the GNSS, and (ii) a composite channel comprising the combined contribution of the multiple channels as a function of time-delay. | 2021-05-06 |
20210132238 | SEMICONDUCTOR IC, ELECTRONIC DEVICE, AND POSITIONING METHOD - A first positioning portion, a calculator, and a second positioning portion are provided in an electronic device targeted for positioning. The first positioning portion obtains, by Doppler positioning, a candidate position which is a candidate for an initial position of the electronic device in code phase positioning from radio waves received from each of GPS satellites. The calculator calculates an index value indicating the magnitude of variation in code phase from a difference between a code phase obtained from the radio waves received from each of the GPS satellites and a code phase obtained based on a candidate position and a position of each GPS satellite. The second positioning portion performs the code phase positioning using ZCount or a candidate position according to the index value. | 2021-05-06 |
20210132239 | Handheld Backscatter Scanning Systems With Different Detector Panel Configurations - The present specification provides a detector for an X-ray imaging system. The detector includes at least one high resolution layer having high resolution wavelength-shifting optical fibers, each fiber occupying a distinct region of the detector, at least one low resolution layer with low resolution regions, and a single segmented multi-channel photo-multiplier tube for coupling signals obtained from the high resolution fibers and the low resolution regions. | 2021-05-06 |
20210132240 | RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation imaging apparatus including: a first scintillator layer configured to convert a radiation (R) which has entered the first scintillator layer into light; a second scintillator layer configured to convert a radiation transmitted through the first scintillator layer into light; a fiber optic plate (FOP) provided between the first scintillator layer and the second scintillator layer; and an imaging portion configured to convert the light generated in the first scintillator layer and the light generated in the second scintillator layer into an electric signal. | 2021-05-06 |
20210132241 | THREE-DIMENSIONALLY HETEROGENEOUS PET SYSTEM - The application provides a three-dimensionally heterogeneous PET system comprising at least two heterogeneous detector modules, each comprising at least two kinds of crystal strips closely arranged to form different detection performances levels for different kinds of crystal strips and same detection performances levels for same kind of crystal strips. Parameters of detection performances of crystal strips comprise energy resolution, density, size and light output, wherein different detection performances levels for crystal strips comprise one or more of parameters of detection performances of crystal strips being in different levels. Compared with a high spatial resolution PET system, the application effectively reduces manufacturing costs of a PET system without significantly reducing spatial resolution thereof. Compared with an ordinary spatial resolution PET system, it improves spatial resolution of a PET system by slightly increasing its cost, and can also provide imaging field of view with high spatial resolution in radial direction. | 2021-05-06 |
20210132242 | SEISMIC VIBRATOR WITH ADJUSTABLE RESONANCE FREQUENCY - A seismic vibrator is configured to operate close to resonance for range of actuating frequencies. The vibrator has a baseplate, a reaction mass coupled to the baseplate via an elastic coupling mechanism and an actuator configured to displace the reaction mass with an actuating frequency. The vibrator also has a frequency-adjusting system configured to adjust a natural frequency of the elastic coupling mechanism and the reaction mass, to track the actuating frequency so that to achieve resonance. | 2021-05-06 |
20210132243 | Borehole Fluid Gel Strength Measurement - A method and systems for performing a borehole operation with a borehole fluid that includes applying an amplitude oscillation deformation force to a sample of the borehole fluid over a period of time, measuring the deformation force from the sample, determining a storage modulus of the borehole fluid over the period of time based on the measured deformation force, determining a gel strength of the borehole fluid by correlation with the storage modulus, comparing the gel strength with a desired gel strength and if the gel strength is outside of an acceptable range of the desired gel strength, adjusting a drilling parameter, a composition of the borehole fluid, or a combination thereof, and using the borehole fluid in the borehole operation. Determining the storage modulus and the gel strength may be done using a processor and the force may be applied using a piezoelectric device. | 2021-05-06 |
20210132244 | DATA ACQUISITION SYSTEMS - A master data acquisitions system is provided. A trigger emits a sync signal to be sensed by each of a plurality of data acquisition systems. A controller is communicatively coupled with each of the plurality of data acquisition systems. The controller receives data from each of the data acquisition systems. The data for each of the plurality of data acquisition systems include the sensed sync signal. The controller synchronizes the data from each of the plurality of data acquisition systems by aligning the sensed sync signal for each of the plurality of data acquisition systems. | 2021-05-06 |
20210132245 | SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT FOR COMPRESSION OF SEISMIC DATA - A system for seismic surveying, method for performing seismic and a non-transitory computer readable medium having instructions stored therein that, when executed by one or more processors, cause the one or more processors to perform a method for performing seismic surveying including emitting seismic waves into a substrate, receiving seismic waves reflected from discontinuities within the substrate, converting the seismic waves into seismic traces, and representing the seismic traces by superimposed multiple tone sinusoidal waves using a parameter estimation. An optimized residual of the modelling is compressed using entropy coding or quantization coding techniques, and the optimized residual and the parameter sets are transmitted to a remote processing station for reconstruction and analysis of the discontinuities. | 2021-05-06 |
20210132246 | METHOD FOR DETERMINING A GRID CELL SIZE IN GEOMECHANICAL MODELING OF FRACTURED RESERVOIRS - A method for determining grid cell size in geomechanical modeling of fractured reservoirs including a variation range of mechanical parameters of the reservoir is determined. A three-dimensional fracture discrete network model is established. Mechanical parameters of fracture surface are determined on the basis of fracture surface mechanical test. Equivalent mechanical parameters of models with different sizes are researched by three-cycle method, and size effect and the anisotropy of the mechanical parameters of the fractured reservoir are calculated respectively, and an optimal grid cell size in geomechanical modeling is determined. | 2021-05-06 |
20210132247 | DETERMINING EVENT CHARACTERISTICS OF MICROSEISMIC EVENTS IN A WELLBORE USING DISTRIBUTED ACOUSTIC SENSING - A well system includes a fiber optic cable positionable downhole along a length of a wellbore and a reflectometer communicatively coupleable to the fiber optic cable. The reflectometer detects and locates a microseismic event using strain detected in reflected optical signals received from the fiber optic cable. Further, the reflectometer computes a set of spectra for waveforms of the microseismic event. Additionally, the reflectometer aggregates each spectrum from the set of spectra that meet an acceptance threshold to generate an aggregate spectrum. Furthermore, the reflectometer applies a fault source model to the aggregate spectrum to determine a magnitude of the microseismic event. | 2021-05-06 |
20210132248 | LOCATE OR TRACER WIRE GROUNDING TERMINAL - A locate wire grounding terminal having a body for encapsulating various components of the locate wire grounding terminal, a switch for changing the locate wire grounding terminal between a grounded configuration and an ungrounded configuration, at least one locating terminal in electronic connectivity with the switch and one end of a section of tracer wire and a grounding lug in electronic connectivity with the switch. A locate wire grounding terminal device that includes a printed circuit board that can be incorporated into a locate wire terminal system, a switch attached to the printed circuit board to change the locate wire terminal system between a grounded configuration and an ungrounded configuration, at least one locating terminal attached thereto wherein the at least one locating terminal is in electronic connectivity with the switch and one end of a section of tracer wire. The device further includes a grounding lug attached to the printed circuit board and the at least one grounding lug is in electronic connectivity with the switch. Methods of using the terminal and device to locate tracer wire. | 2021-05-06 |
20210132249 | METHOD FOR SOLID MINERAL RESOURCES DISCOVERY BASED ON DYNAMIC GEOCHEMISTRY METHODS - Disclosed are methods for locating deposits of mineral resources below the Earth's crust. A period of resonance of 14-day gravitational tides is predicted based on known information about a location. During the period of resonance, element vapor emissions and/or other data are recorded using gas analyzers and/or other devices, which are spread in an array over the location. The vapors and/or other data are recorded for a period of about 3-4 days. The recorded data is analyzed to determine when and where any anomalies exist. By comparing anomalies to control data, the changes can be further extrapolated to obtain more accurate data. After anomalies are detected and analyzed, the locations of deposits comprising mineral resources can be determined and maps of the locations correlating to the surface are generated. | 2021-05-06 |
20210132250 | Estimating Pore and Fluid Characteristic Properties in Rock Samples Using Nuclear Magnetic Resonance Analyses - A method for deriving at least one pore or fluid relaxation parameter and endpoint selected from the group consisting of a longitudinal T | 2021-05-06 |