48th week of 2021 patent applcation highlights part 45 |
Patent application number | Title | Published |
20210373068 | SYSTEMS AND METHOD TO TEST SEMICONDUCTOR DEVICES - A method for testing semiconductor devices is disclosed, which includes: obtaining a result measured on a semiconductor device in one of a set of tests; comparing the result with a maximum value determined among respective results that were previously measured in one or more of the set of tests and a minimum value determined among respective results that were previously measured in one or more of the set of tests; determining, based on the comparison between the first result and the maximum and minimum values, whether to update the maximum and minimum values to calculate a delta value; comparing the delta value with a noise threshold value; determining based on the comparison between the delta value and the noise threshold value, whether to update a value of a timer; determining that the value of the timer satisfies a timer threshold; and determining that the semiconductor device incurs noise. | 2021-12-02 |
20210373069 | SIGNAL TESTING DEVICE AND SIGNAL TESTING METHOD - A signal testing device and a signal testing method are provided. The method includes: obtaining, through a probe, a first frequency response corresponding to a test fixture and a device under test (DUT); obtaining, through the probe, a second frequency response corresponding to the test fixture; and generating a frequency response corresponding to the DUT according to the first frequency response, the second frequency response, a de-embedding algorithm, and an empirical mode decomposition algorithm. | 2021-12-02 |
20210373070 | BURN IN BOARD TEST DEVICE AND SYSTEM - A burn in board test device including: a plurality of devices under test, wherein each of the devices under test includes a burn in device; a plurality of resistors connected to each of the plurality of devices under test; a plurality of device under test switches connected to each of the plurality of resistors; and a device under test tester which is connected a plurality of sub input/output (I/O) channels connected to each of the plurality of device under test switches, and a main I/O channel for connecting the plurality of sub I/O channels to each other to test the plurality of devices under test. | 2021-12-02 |
20210373071 | ANALYSIS METHOD, ANALYSIS DEVICE, ANALYSIS PROGRAM, AND RECORDING MEDIUM FOR RECORDING ANALYSIS PROGRAM - An inspection apparatus includes a light sensor that detects light from a semiconductor device to which an electric signal has been input, an optical system that guides light from the semiconductor device to the light sensor, and a control device electrically connected to the light sensor. The control device includes a measurement unit that acquires waveform data obtained by optical measurement for each of a plurality of positions on a defective semiconductor device and waveform data obtained by the optical measurement for each of a plurality of positions on a non-defective semiconductor device, a calculation unit that calculates a degree of correspondence between the waveform data of the defective semiconductor device and the waveform data of the non-defective semiconductor device, and an analysis unit that analyzes a defective part of the defective semiconductor device on the basis of the degree of correspondence for each of the plurality of positions. | 2021-12-02 |
20210373072 | ALLOCATION OF TEST RESOURCES TO PERFORM A TEST OF MEMORY COMPONENTS - A system includes a memory component and a processing device, operatively coupled with the memory component, to receive a request to perform a first test of memory components at a test platform, identify test resources of the test platform that are associated with the memory components, identify, among the test resources, a subset of test resources that are not being used by a second test of the memory components at the test platform, and assign, based on the subset of the test resources, a test resource of the test resources to obtain an assigned test resource for use by the test. | 2021-12-02 |
20210373073 | METHODS OF PRODUCING AUGMENTED PROBE SYSTEM IMAGES AND ASSOCIATED PROBE SYSTEMS - Methods of producing augmented probe system images and associated probe systems. A method of producing an augmented probe system image includes recording a base probe system image, generating the augmented probe system image at least partially based on the base probe system image, and presenting the augmented probe system image. The augmented probe system image includes a representation of at least a portion of the probe system that is obscured in the base probe system image. In some examples, a probe system includes a chuck, a probe assembly, an imaging device, and a controller programmed to perform methods disclosed herein. | 2021-12-02 |
20210373074 | SCAN TEST DEVICE AND SCAN TEST METHOD - A scan test device includes a scan flip flop circuit and a clock gating circuit. The scan flip flop circuit is configured to receive a scan input signal according to a scan clock signal, and to output the received scan input signal to be a test signal. The clock gating circuit is configured to selectively mask the scan clock signal according to a predetermined bit of the test signal and a scan enable signal, in order to generate a test scan clock signal for testing at least one core circuit. | 2021-12-02 |
20210373075 | BUILT-IN SELF-TEST FOR NETWORK ON CHIP FABRIC - A system comprising a network-on-chip (NOC) fabric comprising a plurality of routes to communicate data between a plurality of agents; a plurality of built-in self-test (BIST) generators, wherein a BIST generator of the plurality of BIST generators is coupled between an agent of the plurality of agents and the NOC fabric and is to transmit at least one test pattern through the NOC fabric; and a plurality of BIST checkers, wherein a BIST checker of the plurality of BIST checkers is coupled between the agent of the plurality of agents and the NOC fabric and is to receive at least one test pattern through the NOC fabric from at least one of the plurality of BIST generators and to verify whether the at least one test pattern was transmitted correctly through the NOC fabric. | 2021-12-02 |
20210373076 | DETECTION SYSTEM AND DETECTION METHOD - The present disclosure relates to a detection system including a control circuit, a power line network bridge circuit, a fixture device and a detection device. The control circuit is configured to generate a plurality of detection signals. The power line network bridge circuit receives detection signals through a power line. The fixture device is electrically connected to the power line through the power line network bridge, and is configured to receive the detection signals. The fixture device is configured to transmit the detection signals to a device under test, so that the device under test displays a plurality of media. The detection device is configured to capture the media and transmit the media to the control circuit. The control circuit is further configured to determine whether the media match with detection parameters. | 2021-12-02 |
20210373077 | DETERMINISTIC STELLAR BUILT-IN SELF TEST - A system for testing a circuit comprises scan chains, a controller configured to generate a bit- inverting signal based on child test pattern information, and bit-inverting circuitry coupled to the controller and configured to invert bits of a parent test pattern associated with a plurality of shift clock cycles based on the bit-inverting signal to generate a child test pattern during a shift operation. Here, the plurality of shift clock cycles for bit inverting occur every m shift clock cycles, and the child test pattern information comprises information of m and location of the plurality of shift clock cycles in the shift operation. | 2021-12-02 |
20210373078 | Testing method for conduct synchronism of dual power transfer switch and apparatus thereof - A testing method has corresponding a contacts group to a key of a computer keyboard; corresponding a contacts group state to a key state; corresponding a first keys group and a second keys group to a first power contacts group and a second power contacts group respectively; obtaining and storing a first values group and a second values group when the first keys group and the second keys group are closed respectively; respectively calculating difference values between one value in the first or second values group and other values thereof; dividing the difference values by the device frequency value to obtain a first or second difference values group; and storing the difference values groups. The first and second difference values groups accurately reflect conduct synchronism of each pole of dual power transfer switch. | 2021-12-02 |
20210373079 | Collecting and measuring method for conduct transition time of dual power transfer switch and apparatus thereof - A collecting and measuring method has corresponding a contacts group to a key of a computer keyboard; corresponding a contacts group state to a key state; corresponding a first keys group and a second keys group to a first power contacts group and a second power contacts group respectively; obtaining and storing a first values group and a second values group when the first keys group and the second keys group are closed respectively; calculating a difference value between the second and first values groups; dividing the difference value by the device frequency value to get a time value; and storing the time value. The time value is a conduct transition time value of a corresponding pole. | 2021-12-02 |
20210373080 | DRIVE FOR AN ELECTRIC APPLICATION AND PROCESSES FOR MAINTAINING AND FINE-TUNING THE DRIVE - The present invention relates to a drive for an electric application such as an electric motor, said drive including at least one microphone for registering noise signals occurring at the drive, wherein the microphone is connectable to a computing device for analysing the registered noise signals. The registered noise signals may be used for a maintenance process of the drive and/or a fine-tuning process of a drive control method of the drive. The present invention also relates to a maintenance process, in particular a predictive maintenance process for a corresponding drive. Furthermore, the present invention relates to a process for fine tuning a drive control method of a corresponding drive. | 2021-12-02 |
20210373081 | ELECTRICAL ARCHITECTURE FOR ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY - The present disclosure provides electrical architecture for electrochemical impedance spectroscopy (EIS). An EIS circuit comprises at least two current regulators and an electrical energy storage device, which are connected with one or more electrochemical cells in a configuration that decouples power flowing into the respective current regulators. The presence of the electrical energy storage device enables each regulator to operate simultaneously at lower power levels while inducing the desired EIS perturbation current. Operation at low power allows lower volume and cost for the same current compared to only dissipative or non-dissipative current regulators. Further, the electrical energy storage device allows the power flowing through the current regulators to be varied independently in order to achieve the desired EIS perturbation current while a minimum amount of heat is generated in the circuit, thus allowing the circuit to occupy minimal size and incur minimal cost. | 2021-12-02 |
20210373082 | METHOD AND DEVICE FOR OPERATING AN ELECTRICALLY DRIVABLE MOTOR VEHICLE DEPENDING ON A PREDICTED STATE OF HEALTH OF AN ELECTRICAL ENERGY STORE - A computer-implemented method for operating a motor vehicle, in particular an electrically drivable motor vehicle, depending on a predicted state of health of an electrical energy store, in particular a vehicle battery. The method includes: providing vehicle parameters which influence the state of health of the electrical energy store; predicting the vehicle parameters at a prediction point in time; ascertaining the predicted state of health depending on the predicted vehicle parameters with the aid of a data-based state of health model which is trained to output a state of health of the electrical energy store depending on the vehicle parameters; and signaling the predicted state of health. | 2021-12-02 |
20210373083 | ELECTRONIC DEVICE AND CONTROL METHOD - An electronic device includes a communication unit that communicates with a battery, a storage unit that stores a first identification information of the battery, and a determination unit that determines whether the communication unit is capable of performing a predetermined communication with the battery, in a case where a second identification information of the battery received from the battery is matched with the first identification information stored in the storage unit. | 2021-12-02 |
20210373084 | POWER SUPPLY COMBINATION HAVING HETEROGENEOUS POWER SUPPLIES - A power supply combination comprises two multi-voltage power sources having respective power rails delivering power at a first voltage and respective power rails delivering power at a second voltage. The power supply combination also comprises two single-voltage power sources having respective power rails delivering power at the first voltage. A first power combining circuit is electrically connected to the first voltage power rails of two multi-voltage power sources and to the two single-voltage power sources and delivers power at the first voltage to a first voltage input of a load. A second power combining circuit is electrically connected to the second voltage power rails of the two multi-voltage power sources and delivers power at the second voltage to a second voltage input of the load. A power supply network may connect a plurality of power supply combinations to a power management unit for reporting failures of the power sources. | 2021-12-02 |
20210373085 | CIRCUIT FOR DETECTING PIN-TO-PIN LEAKS OF AN INTEGRATED CIRCUIT PACKAGE - Techniques and apparatuses are provided for detecting a short circuit between pins of an integrated circuit package. The tested pins can be adjacent or non-adjacent on the package. Various types of short circuits can be detected, including resistive, diode and capacitive short circuits. Additionally, short circuits of a single pin can be tested, including a short circuit to a power supply or to ground. The test circuit includes a current mirror, where the input path has a first path connected to a first pin and a parallel second path connected to a second pin. A comparator is connected to the output path of the current mirror. By controlling the on and off states of transistors in the first and second paths, and evaluating the voltage of the output path, the short circuits can be detected. | 2021-12-02 |
20210373086 | TRANSFORMER CONDITION EVALUATION METHOD COMBINING FAHP-DEMATEL METHOD AND CRITIC METHOD - A transformer condition evaluation method combining a FAHP-DEMATEL method and a CRITIC method is provided and includes: selecting a plurality sets of condition quantities, building a hierarchical indicator system; calculating a degree of influencing and a degree of being influenced by using the DEMATEL method on a subjective level, calculating a weight of each of a plurality of indicators of an indicator layer through the FAHP-DEMATEL method, calculating the weights of the indicators of the indicator layer through the CRITIC method on an objective level; calculating an optimal weight according to the subjective weights of the indicators and the objective weights of the indicators; and calculating condition scores layer by layer, finally determining an actual health condition of each of a plurality of transformers by combining condition level classification rules. In the disclosure, the weights are calculated based on the subjective level and the objective level. | 2021-12-02 |
20210373087 | Current Transformer with Embedded Voltage Field Detection and Thermal Sensing - A monitoring system for sensing electrical parameters including current and voltage can comprise a current transformer and an antenna. The current transformer can be configured to sense current passing through a conductor. The antenna can be configured to sense electrical potential of the conductor by sensing an electric field generated by the conductor. The antenna can sense the electrical potential independent of whether current is present in the conductor. The monitoring system can further comprise a temperature sensor configured to sense a temperature of the conductor. A sensing module can include a housing supporting the current transformer, the antenna, and the temperature sensor for monitoring an electrical power circuit. | 2021-12-02 |
20210373088 | System and Method for Monitoring One or More Characteristics of an Ultracapacitor - A method for monitoring one or more characteristics of an ultracapacitor is provided. The method includes obtaining a plurality of voltage measurements. Each of the voltage measurements can be obtained sequentially at one of a plurality of intervals. Furthermore, each of the voltage measurements can be indicative of a voltage across the ultracapacitor. The method can include determining an actual voltage step of the ultracapacitor based on two consecutive voltage measurements of the plurality of voltage measurements. The method can further include determining whether the actual voltage step exceeds a threshold voltage step of the ultracapacitor. Furthermore, in response to determining the actual voltage step exceeds the threshold voltage, the method can include providing a notification associated with performing a maintenance action on the ultracapacitor. | 2021-12-02 |
20210373089 | TESTING DEVICE FOR DETERMINING ELECTRICAL CONNECTION STATUS - A testing device includes a measuring unit, a testing board supporting the measuring unit and connected to the measuring unit, and a connecting interface coupled to the testing board. The connecting interface includes connecting terminals protruding in a direction away from the testing board, and is connected to a device under test (DUT) via the connecting terminals. When the DUT is connected to the connecting interface, the measuring unit supplies a constant electric current via the testing board and the connecting interface to the DUT for a preset duration to result in a voltage, measures the voltage, and determines, based on a result of measurement of the voltage, an electrical connection status of the DUT. | 2021-12-02 |
20210373090 | CONTACT CONNECTIVITY - Examples of an electronic device are described. In some examples, the electronic device includes a first shared line of a plurality of first contacts to respectively connect to a plurality of integrated circuits, a plurality of second lines of respective second contacts to respectively connect to the plurality of integrated circuits, and a third shared line of a plurality of third contacts to respectively connect to the plurality of integrated circuits. In some examples, the electronic device includes circuitry to determine whether one of the third contacts is connected to an integrated circuit based on a state of the first shared line and a state of one of the second lines that is associated with the one of the third contacts. | 2021-12-02 |
20210373091 | SENSOR PACKAGE - A sensor package comprises a non-conductive substrate, at least two electrically conductive coils located at a first side of the non-conductive substrate, an evaluation circuit located at a second side of the non-conductive substrate opposing the first side of the non-conductive substrate and conductive connections between the at least two electrically conductive coils and the evaluation circuit. | 2021-12-02 |
20210373092 | MAGNETIC FIELD MEASUREMENT OR RECORDING SYSTEMS WITH VALIDATION USING OPTICAL TRACKING DATA - A magnetic field recording system includes a headgear for a user; optically pumped magnetometers (OPMs) disposed in or on the headgear to detect magnetic fields and, in response to the detection, produce magnetic field data; at least one sensing modality including an optical sensing modality having at least one light source and at least one camera or light detector to receive light reflected or directed from the user and to produce an optical data stream; a tracking unit to receive the optical data stream and track a position or orientation of the headgear or user; a system controller to control operation of the OPMs and receive, from the tracking unit, the position or orientation of the headgear or user; and a processor to receive the optical data stream and the magnetic field data from the OPMs and analyze the magnetic field data using the optical data stream for validation. | 2021-12-02 |
20210373093 | MAGNETIC SENSOR AND MAGNETIC SENSOR MANUFACTURING METHOD - A magnetic sensor | 2021-12-02 |
20210373094 | MAGNETORESISTIVE SENSOR AND FABRICATION METHOD FOR A MAGNETORESISTIVE SENSOR - Exemplary embodiments are directed to magnetoresistive sensors and corresponding fabrication methods for magnetoresistive sensors. One example of a magnetoresistive sensor includes a layer stack, wherein the layer stack includes a reference layer having a fixed reference magnetization, wherein the fixed reference magnetization has a first magnetic orientation. The layer stack furthermore includes a magnetically free system of a plurality of layers, wherein the magnetically free system has a magnetically free magnetization, wherein the magnetically free magnetization is variable in the presence of an external magnetic field, and wherein the magnetically free magnetization has a second magnetic orientation in a ground state. The magnetically free system has two ferromagnetic layers and an interlayer, wherein the interlayer is arranged between the two ferromagnetic layers and includes magnesium oxide. The layer stack furthermore includes a barrier layer, which is arranged between the reference layer and the magnetically free system and includes magnesium oxide. | 2021-12-02 |
20210373095 | NON-CONTACT LINEAR POSITION SENSOR - Position sensors, including linear position sensors, that utilize magnetic field(s) are disclosed. Disclosed sensors include flux emitters and sensor assemblys. The sensor assemblys include flux collectors that interact with magnetic fields from flux emitters and with a magnetism sensing device. Flux emitters have arrangements of magnets that when combined with the sensor assembly can provide a constantly increasing or a constantly decreasing signal across a range of relative movement. | 2021-12-02 |
20210373096 | THREE-AXIS OPTICALLY PUMPED MAGNETOMETER FOR GRADIOMETRIC MEASUREMENT - A three-axis vector optically pumped magnetometer includes a cell filled with an atomic gas subjected to an ambient magnetic field the projection of which on three rectangular coordinate axes defines three components thereof, and a photodetector arranged to receive a probe beam that passed through the cell. The photodetector includes a plurality of measurement units arranged in a plane transverse to a direction of propagation of the probe beam, the measurement units each providing a photodetection signal. The magnetometer further comprises a processing unit configured to determine, for each measurement unit and from the photodetection signal, a measurement associated with the measurement unit of each of the three components of the ambient magnetic field; calculate at least one difference between the measurements, associated with different measurement units, of a component of the magnetic field; and deliver a gradiometric measurement signal including the at least one difference calculated. | 2021-12-02 |
20210373097 | GRADIENT POWER AMPLIFIER SYSTEMS AND METHODS - Gradient power amplifier (GPA) systems and methods are provided. A GPA system may include a plurality of paralleled GPAs; and at least one controller operably coupled to the plurality of paralleled GPAs. The at least one controller may be configured to perform operations including: obtaining a total current parameter of the plurality of paralleled GPAs; determining, based on the total current parameter and a target current parameter, a first difference value; and determining, based on the first difference value, a first control parameter of a first GPA of the plurality of paralleled GPAs, wherein the first control parameter is configured to control an output current of the first GPA. | 2021-12-02 |
20210373098 | MATERIAL DETECTION SYSTEM - A system includes a table and a material detection system. The material detection system includes a transmit chain configured to generate first radio frequency (RF) signals and a transmit probe configured to transmit the first RF signals towards an item through open space. The material detection system also includes a receive probe configured to receive second RF signals from the item through open space, where the second RF signals have one or more characteristics indicative of one or more materials within the item. The material detection system further includes a receive chain configured to process the second RF signals and at least one processing device configured to identify the one or more materials within the item using nuclear quadrupole resonance (NQR) spectrometry based on the processed second RF signals. The transmit and receive probes are positioned in an upper portion of the table. | 2021-12-02 |
20210373099 | METHOD AND SYSTEM FOR MAGNETIC RESONANCE - A composite pulse sequence that causes a series of magnetic moment rotations that, in combination, are equivalent to a pulse sequence that would cause a single rotation having a target desired rotation angle α is described. The composite pulse sequence involves a plurality of pulses which each individually have a desired rotation (A°, B° etc) that is less than the target desired rotation α°. The pulses each cause a rotation about respective axes, that may be orthogonal to each other. Slice selection magnetic gradients can be employed to make the component rotations of the composite pulse slice selective. | 2021-12-02 |
20210373100 | MAGNETIC RESONANCE CEST IMAGING SEQUENCE AND DEVICE BASED ON FREQUENCY STABILIZATION MODULE - The present disclosure discloses a magnetic resonance CEST imaging sequence and device based on a frequency stabilization module. It includes following steps: first, in the frequency stabilization module, exciting a target slice with a small-flip-angle radio frequency pulse, and collecting three lines of non-phase-encoded k-space data; second, obtaining a fine estimated value of a frequency drift of a main magnetic field by calculating a phase difference between the first and second lines of non-phase encoded k-space data; then obtaining a coarse estimated value of the frequency drift of the main magnetic field by calculating a difference between a phase difference between the second and third lines and the phase difference between the first and second lines; then determining the value of the frequency drift of the main magnetic field by comparing a difference between the coarse estimated value and the fine estimated value with a threshold; then adjusting a center frequency of the radio frequency pulse based on the calculation result of the frequency drift of the main magnetic field, to realize a real-time correction of the frequency drift of the main magnetic field; and finally, performing conventional magnetic resonance CEST imaging. The present disclosure realizes the real-time correction of the frequency drift of the main magnetic field during magnetic resonance CEST imaging and ensures effective suppression on fat signals, thereby improving magnetic resonance CEST imaging performance. | 2021-12-02 |
20210373101 | SATURATION-PREPARED RECORDING OF MR IMAGE DATA - A method is provided for the saturation-prepared recording of MR image data. The method includes establishment of at least two measurement slices in an examination volume of an examination object, wherein the examination volume has adjacent slices which each adjoin at least one of the at least two measurement slices; output of a saturation module including at least one saturation pulse for saturating a magnetization of the adjacent slices; output of an excitation pulse for exciting a magnetization of at least one of the at least two measurement slices; readout of an MR signal of the examination volume; reconstruction of the MR image data from the at least two measurement slices based on the MR signal; and provision of the MR image data. The disclosure further relates to a magnetic resonance system and a computer program product. | 2021-12-02 |
20210373102 | ORIENTATION-INDEPENDENT ORDER PARAMETER DERIVED FROM MAGNETIC RESONANCE R1P DISPERSION IN ORDERED TISSUE - Techniques for analyzing ordered tissue to calculate an orientation-independent order parameter S that is sensitive to the collagen microstructural integrity in cartilage are provided. An magnetic resonance image of ordered tissue may be acquired, and based on the image, an R | 2021-12-02 |
20210373103 | A METHOD FOR CONFIGURING A RF TRANSMIT ASSEMBLY - The present disclosure relates to a method for configuring a radio frequency, RF, transmit assembly ( | 2021-12-02 |
20210373104 | MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD - In MRI, upon simultaneously generating computed images of multiple parameters, imaging time is efficiently reduced while preventing decrease in spatial resolution and SN ratio as much as possible. A plurality of original images is reconstructed from nuclear magnetic resonance signals acquired under various imaging conditions, and a computed image is obtained by calculation performed among the plurality of original images. The various imaging conditions include an imaging condition that a repetition time of an imaging sequence is different from one another, and upon imaging, the number of phase encoding steps is made smaller when the repetition time is long. An image is reconstructed in such a manner that a matrix size of the image obtained when the number of phase encoding steps is small is made equal to the matrix size of the image obtained when the number of phase encoding steps is large. | 2021-12-02 |
20210373105 | SCOUT ACQUISITION ENABLES RAPID MOTION ESTIMATION AND REDUCTION (SAMER) SYSTEMS AND METHODS FOR RETROSPECTIVE MOTION MITIGATION - In a method and system for reducing motion artifacts in magnetic resonance image data, a scout scan of the region of the patient is performed, a magnetic resonance (MR) measurement of the region of the patient is performed to acquire MR image data of the region of the patient, and motion correction is performed on the acquired MR image data based on the scout scan to generate corrected MR image data. The motion correction technique advantageously reduces an influence of a patient motion on the magnetic resonance image data. | 2021-12-02 |
20210373106 | PORE CONTRIBUTION CORRECTED QUANTIFYING OF SURFACE ROUGHNESS - To separate porosity from surface roughness, length scales for pore size and surface roughness are identified. These length scales are determined from surface roughness measurements and confirmed via NMR pore body calculations and pore size capillary pressure measurements. A filter removes pore contribution to surface roughness measurements and delivers intrinsic surface roughness. Additional filters and methods determine the minimum magnification on which to base surface roughness calculation, based on size of the field of view and where measured surface roughness approaches intrinsic surface roughness as magnification increases but larger magnification increase sampling time and difficulty. Sample irregularities, such as saw marks, are also filtered out or determined to be too large to remove via filter and another area of measurement is located. With the pore corrected quantification of surface roughness, surface relaxivity and pore distribution can be calculated with greater accuracy. | 2021-12-02 |
20210373107 | SYSTEMS AND METHODS FOR LOW-FIELD FAST SPIN ECHO IMAGING - A magnetic resonance imaging (MRI) system and method for acquiring magnetic resonance (MR) images using a pulse sequence implementing driven equilibrium and quadratic phase cycling techniques is provided. The method includes, during a pulse repetition period of a pulse sequence and using a quadratic phase cycling scheme, applying a first RF pulse to deflect a net magnetization vector associated with the subject from a longitudinal plane into a transverse plane; after applying the first RF pulse, applying a first sequence of RF pulses each of which flips the net magnetization vector by approximately 180 degrees within the transverse plane; and after applying the first sequence of RF pulses, applying a second RF pulse to deflect the net magnetization vector from the transverse plane to the longitudinal plane. | 2021-12-02 |
20210373108 | TISSUE-MIMICKING MATERIAL FOR A MULTI-MODALITY IMAGING PHANTOM - A multi-modality fatty tissue mimicking material for phantoms for use with thermoacoustic imaging, ultrasound imaging and magnetic resonance imaging, which includes: an aqueous mixture of a 3% to 18% thickening agent, a 1% to 30% protein powder, a 0.1% to 2% ionic salt, a 30% to 85% water, and a 0% to 60% oil by weight, wherein the oil percentage corresponds to the fat percentage in tissue, further wherein the ionic salt percentage corresponds to an imaginary part of complex permittivity in tissue, and further wherein the water, oil and protein powder percentages correspond to the real part of complex permittivity in tissue. | 2021-12-02 |
20210373109 | Methods and Systems for Diagnosing Magnetic Sensors - A magnetic sensor circuit includes a plurality of magnetic sensors having bias input and bias output terminals and first and second measurement terminals. The circuit includes a diagnostic sensor having bias input and bias output terminals and first and second measurement terminals. The circuit includes a first multiplexer configured to selectively couple a current source to the bias input terminals of the magnetic sensors or to the bias input terminal of the diagnostic sensor and includes a second multiplexer configured to selectively couple the bias output terminals of the magnetic sensors or the bias output terminal of the diagnostic sensor to a first terminal of a switch. The circuit includes a third multiplexer configured to selectively couple the measurement terminals of the magnetic sensors or the measurement terminals of the diagnostic sensor to differential input terminals of an amplifier. | 2021-12-02 |
20210373110 | RECONFIGURATION OF A RADIO POSITIONING SUPPORT SYSTEM - A method, apparatus and computer readable storage medium are provided for reconfiguring a radio positioning support system. In a method, one or more observation reports are received. Each observation report is associated with a respective radio positioning support device of a radio positioning support system. Each observation report contains an indication for a number of radio positioning support devices and/or for each radio positioning support device from which a radio positioning support signal is observable at a position of said respective radio positioning support device. The method also determines, based on said observation reports, whether a predetermined radio positioning support criterion is met by said radio positioning support system. If it is determined that the predetermined radio positioning support criterion is not met by the radio positioning support system, the method at least partially reconfigures and/or causes at least partially reconfiguration of the radio positioning support system. | 2021-12-02 |
20210373111 | SYSTEM AND METHOD FOR ULTRA-HIGH-RESOLUTION RANGING USING RF - A radio-frequency method for range finding includes modulating a reference signal having an intermediate frequency to a downlink signal having a carrier frequency using a clock signal. The downlink signal is transmitted to a tag using a transceiver. An uplink signal backscattered from the tag is received and demodulated using the clock signal. The uplink signal has a frequency that is a harmonic of the carrier frequency. A distance between the tag and the transceiver is calculated based on a phase of the demodulated uplink signal. A system for range finding includes a transceiver and a processor. The transceiver modulates a reference signal to a downlink signal and transmits the downlink signal. The transceiver receives and demodulates an uplink signal. The processor is configured to receive the demodulated uplink signal and calculate a distance between the tag and the transceiver using a phase of the demodulated uplink signal. | 2021-12-02 |
20210373112 | COMPENSATING FOR CROSSTALK IN DETERMINATION OF AN ANGLE OF ARRIVAL OF AN ELECTROMAGNETIC WAVE AT A RECEIVE ANTENNA - An angle of arrival (AoA) of an electromagnetic wave is determined. A phase of an antenna signal associated with each of two receive antenna is measured. A measured phase difference of arrival (PDoA) of the electromagnetic wave is determined based on the measured phase of each of the antenna signals. The measured PDoA is corrected based on one or more crosstalk factors associated with the two receive antennas. The AoA of the electromagnetic wave at the two receive antenna is generated based on the corrected measured PDoA. | 2021-12-02 |
20210373113 | TWO-DIMENSIONAL DIRECTION-OF-ARRIVAL ESTIMATION METHOD FOR COPRIME PLANAR ARRAY BASED ON STRUCTURED COARRAY TENSOR PROCESSING - A two-dimensional direction-of-arrival estimation method for a coprime planar array based on structured coarray tensor processing, the method includes: deploying a coprime planar array; modeling a tensor of the received signals; deriving the second-order equivalent signals of an augmented virtual array based on cross-correlation tensor transformation; deploying a three-dimensional coarray tensor of the virtual array; deploying a five-dimensional coarray tensor based on a coarray tensor dimension extension strategy; forming a structured coarray tensor including three-dimensional spatial information; and achieving two-dimensional direction-of-arrival estimation through CANDECOMP/PARACFAC decomposition. The present disclosure constructs a processing framework of a structured coarray tensor based on statistical analysis of coprime planar array tensor signals, to achieve multi-source two-dimensional direction-of-arrival estimation in the underdetermined case on the basis of ensuring the performance such as resolution and estimation accuracy, and can be used for multi-target positioning. | 2021-12-02 |
20210373114 | MULTIPLE LONG BASELINE INTERFEROMETRY GEOLOCATION - Techniques are provided for emitter geolocation. A methodology implementing the techniques according to an embodiment includes measuring phase differences between radar signals received at one or more pairs of antennas. The method also includes calculating hypothesized phase differences based on ray tracings from hypothesized emitter locations at a first set of grid points, to the antennas. The method further includes generating scores based on correlations between the measured phase differences and the hypothesized phase differences. The method further includes generating an error ellipse based on candidate grid points associated with scores that are above a threshold. The process may be repeated on a second set of grid points, bounded by the error ellipse, to generate a second set of scores. The grid point, from the second set of grid points, that is associated with the highest of the second set of scores is selected as the estimated emitter geolocation. | 2021-12-02 |
20210373115 | Occupancy-based Service Delivery Systems and Methods - An occupancy detector provides for an automated means of detecting the location of an occupant. Methods to determine with a high degree of certainty if a user is at (or occupying) a specific physical location or region are provided, using a wide variety of radio signaling technologies readily available on a wide scale due to the prevalence of wireless radio communications systems. The occupancy detector may be used to deliver a variety of services from targeted advertising in a supermarket to home automation systems. | 2021-12-02 |
20210373116 | Position Determination Using Time Difference of Arrival of Single Frequency Network Signals - The disclosure relates to an OTDOA positioning technique wherein different base stations transmit different variations of the same basic PRS or other positioning signal synchronously as an SFN signal to effect an observed time shift at the UE between the different variations of the basic PRS signal or positioning signal. This added time shift resulting from the transmission of different variations by different base stations effectively spreads the corresponding channel impulses in the CIR of the SFN signal in the time domain so that the UE is better able to detect and discriminate between different instances of the positioning signal transmitted from different base stations. | 2021-12-02 |
20210373117 | Techniques For Imaging Wireless Power Delivery Environments And Tracking Objects Therein - Techniques are described herein for imaging static or semi-static objects in a wireless power delivery environment and tracking non-static objects contained therein. More specifically, embodiments of the present disclosure describe techniques for determining the relative locations and movement of non-static objects in a wireless power delivery environment. Additionally, the techniques describe methods and system for generation of motion-based maps such as heat (or dwell maps) and flow maps. | 2021-12-02 |
20210373118 | SYSTEMS AND METHODS FOR BEAM-SWEEPING FOR NEW RADIO POSITIONING - A method comprises: selecting, from a first number of first receive (RX) beams having a first beam width, a first RX beam to form a first beam-pair with a first transmit (TX) beam from one or more base stations, the selection being based on a first measurement of a first reference signal received by the UE using the first beam-pair; selecting, from a second number of second RX beams having a second beam width, a second RX beam to form a second beam-pair with the first TX beam, the selection being based on a second measurement of a second reference signal received by the UE using the second beam-pair, the second number of second RX beams being smaller than the first number of first RX beams, the second beam width being narrower than the first beam width; and performing a location estimate operation using either the second beam-pair, or a third beam-pair derived from the second beam-pair. | 2021-12-02 |
20210373119 | CONTROL DEVICE AND NON-TRANSITORY STORAGE MEDIUM - To measure the distance between the devices with higher accuracy. | 2021-12-02 |
20210373120 | SIMULTANEOUS OBJECT DETECTION AND DATA TRANSFER WITH A VEHICLE RADAR - In one embodiment, a method includes providing instructions to broadcast a modulated radar chirp signal from a radar antenna of a vehicle. The modulated radar chirp signal includes data associated with the vehicle. The method includes receiving a first return signal whose waveform substantially matches the modulated chirp signal. The first return signal is the modulated radar chirp signal after reflecting off of an object in an environment surrounding the vehicle. The method includes calculating a location for the object using the first return signal, receiving, from a base station antenna, a second return signal that indicates the modulated chirp signal was received by the base station antenna, and providing instructions to establish a wireless communication session with the base station antenna. | 2021-12-02 |
20210373121 | CALIBRATION SYSTEM AND CALIBRATION BRACKET THEREOF - 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 includes a first beam portion, a second beam portion and a connecting portion, the connecting portion being mounted to the stand assembly, one end of the connecting portion being hinged to the first beam portion, and the other end of the connecting portion being hinged to the second beam portion. The first beam portion and the second beam portion can respectively rotate toward each other relative to the connecting portion, so that the beam assembly can be folded. The first beam portion and the second beam portion can also respectively rotate away from each other relative to the connecting portion, so that the beam assembly can be unfolded. In the foregoing structure, the first beam portion and the second beam portion can respectively rotate toward each other relative to the connecting portion, so that the beam assembly is folded, thereby reducing a volume of the calibration bracket to facilitate shipment. | 2021-12-02 |
20210373122 | RADAR TARGET SIMULATOR FRONT END AND METHOD FOR SIMULATING - A radar target simulator front end, configured to simulate at least one radar target for testing a radar device under test is provided. The radar target simulator front end comprises at least two antenna units, arranged along a first angle under investigation. The at least two antenna units are configured to be selectively activated and deactivated. Whereby each antenna unit of the at least two antenna units generates a simulated radar target along the first angle under investigation, when activated. | 2021-12-02 |
20210373123 | SYSTEM AND METHOD OF DETERMINING TARGET'S RANGE PROFILES FOR COSTAL SURVEILLANCE RADARS - Determining a target's range profiles is an important issue for coastal surveillance radars because it can give us the knowledge about the target, for example, target's type, target's structure and its length along radial direction. Some modern radars nowaday are equipped with the feature of target's range profile extraction, but the results are not accurate due to limitations in processing algorithms. The invention “system and method of determining target's range profiles for coastal surveillance radars” solves the above problem in the direction of proposing a system of technical solutions and associated algorithm improvements. | 2021-12-02 |
20210373124 | ELECTRONIC DEVICE, CONTROL METHOD OF ELECTRONIC DEVICE, AND CONTROL PROGRAM OF ELECTRONIC DEVICE - An electronic device comprises: a transmission antenna configured to transmit transmission waves; a reception antenna configured to receive reflected waves resulting from reflection of the transmission waves; and a controller. The controller is configured to detect an object reflecting the transmission waves, based on a transmission signal transmitted as the transmission waves and a reception signal received as the reflected waves. The controller is configured to classify a detection result of the object reflecting the transmission waves depending on a degree of certainty, and output the classified detection result. | 2021-12-02 |
20210373125 | RADAR SYSTEM AND METHOD USING ANTENNA CORRELATION AND COVARIANCE EIGENVALUES IN RADAR SENSOR BLOCKAGE DETERMINATION - According to a first aspect, a radar system with blockage detection is provided. The radar system includes a first antenna for receiving first signals and a second antenna for receiving second signals. Input circuitry processes the first signals to generate first input signals and processes the second signals to generate second input signals. A processor computes a correlation between the first input signals and the second input signals, determines a correlation variance related to variation in the correlation, and generates a determination as to whether the radar system is blocked using the correlation variance. | 2021-12-02 |
20210373126 | Method and System for Obtaining Scattering and Radiation Properties of Electrically Large Metal Targets with General-Purpose Fast Multipole Method - The present invention relates to a new accessible and accurate computational modeling approach to compute electromagnetic scattering and radiation from large predominantly metallic electrically large targets including but not limited to airplanes, missiles, and ships. | 2021-12-02 |
20210373127 | HIGH RESOLUTION AND COMPUTATIONALLY EFFICIENT RADAR TECHNIQUES - Methods, systems, computer-readable media, and apparatuses for determining one or more attributes of at least one target based on eigenspace analysis of radar signals are presented. In some embodiments, a subset of eigenvectors to use for forming a signal or noise subspace is identified based on principal component analysis. In some embodiments, the subset of eigenvectors is identified based on estimating the total number of targets using a discrete Fourier transform (DFT) or other spectral analysis technique. In some embodiments, a DFT is used to identify areas of interest in which to perform eigenspace analysis. In some embodiments, a DFT is used to estimate one attribute of a target, and eigenspace analysis is performed to estimate a different attribute of the target, with the results being combined to generate a multi-dimensional representation of a field of view. | 2021-12-02 |
20210373128 | ELECTRO-OPTICAL BEAM DEFLECTING UNIT FOR LIGHT DETECTION AND RANGING (LIDAR) - Embodiments of the disclosure provide receivers for light detection and ranging (LiDAR). In an example, a receiver includes a beam converging device and an EO beam deflecting unit. The beam converging device is configured to receive a laser beam from an object being scanned by the LiDAR and form an input laser beam. The EO beam deflecting unit is configured to generate a non-uniform medium having at least one of a refractive index gradient or a diffraction grating, receive the input laser beam such that the input laser beam impinges upon the non-uniform medium, and form an output laser beam towards a photosensor. An angle between the input and the output laser beams is nonzero. | 2021-12-02 |
20210373129 | ACOUSTO-OPTICAL BEAM DEFLECTING UNIT FOR LIGHT DETECTION AND RANGING (LIDAR) - Embodiments of the disclosure provide receivers for light detection and ranging (LiDAR). In an example, a receiver includes a beam converging device, an AO beam deflecting unit, and a beam sensor. The beam converging device is configured to receive a laser beam from an object being scanned by the LiDAR and form an input laser beam. The AO beam deflecting unit is configured to generate a diffraction grating along a propagating direction of an acoustic wave, receive the input laser beam such that the input laser beam impinges upon the diffraction grating, and form an output laser beam towards the beam sensor. An angle between the input and the output laser beams is nonzero. | 2021-12-02 |
20210373130 | DETERMINING AN ANGLE OF AN INCIDENT BEAM OF COHERENT LIGHT - A system can determine an angle of an incident beam of a coherent light. An optical antenna, first waveguides, a manifold, and second waveguides can be fabricated on a first chip. Pixels can be fabricated on a second chip. The first chip and the second chip can be mounted on a printed circuit board. The optical antenna can be configured to receive the incident beam at an angle with respect to a plane defined by the optical antenna. The first waveguides can be configured to convey first channels of the coherent light from the optical antenna. The manifold can be configured to receive the first channels of the coherent light from the first waveguides. The second waveguides can be configured to convey second channels of the coherent light from the manifold. The pixels can be configured to receive the second channels of the coherent light from the second waveguides. | 2021-12-02 |
20210373131 | LiDAR SYSTEM AND METHOD OF DRIVING THE SAME - A light detection and ranging (LiDAR) system is provided including a beam steering device configured to modulate a phase of light from a light source and to output light in a plurality of directions at the same time, a receiver including a plurality of light detection elements configured to receive light that has been irradiated onto an object in the plurality of directions from the beam steering device and reflected from the object, and a processor configured to analyze position-specific distribution and/or time-specific distribution of light received by the receiver and to individually process the light lights irradiated onto the object in the plurality of directions. | 2021-12-02 |
20210373132 | OPTICAL SENSOR ARRANGEMENT, DEVICE AND METHOD OF MANUFACTURING AN OPTICAL SENSOR ARRANGEMENT - A method of manufacturing an optical sensor arrangement including the steps of providing a substrate having a surface and providing an integrated circuit comprising an optical detector arranged for detecting light of a desired wavelength range. The integrated circuit and a light emitter are mounted onto the surface, wherein the light emitter is arranged for emitting light in the desired wavelength range. The integrated circuit and the light emitter are electrically connected to each other and to the substrate. A light barrier is formed between the optical detector and the light emitter by dispensing a first optically opaque material along a profile of the integrated circuit. A mold layer is formed by at least partly encapsulating the substrate, the integrated circuit and the light emitter with an optically transparent material. A casing, made from a second optically opaque material, is mounted on the light barrier and thereby encloses a hollow space between the casing and the mold layer. | 2021-12-02 |
20210373133 | RANGING APPARATUS - A ranging apparatus works to measure a distance to an object and includes an emitter, a receiver, a housing, an emitting window, a receiving window, an emitting window heating wire, and an emitting window covering layer. The emitter outputs light. The receiver receives reflected light arising from reflection of the emitted light on the object. The housing has the emitter disposed therein. The emitting window is provided in the housing and configured to have the emitted light to be transmissible therethrough. The receiving window is provided in the housing and configured to have the reflected light to be transmissible therethrough toward the receiver. The emitting window heating wire adds heat to the emitting window. The emitting window covering layer covers the emitting window heating wire. The emitting window covering layer reflects the emitted light and the reflected light less than the emitting window heating wire. | 2021-12-02 |
20210373134 | RANGING APPARATUS - A ranging apparatus works to measure a distance to an object and includes an emitter, a receiver, a housing, an optical window, a heater, an outlet hole formed in the housing, a power conductor, and a guide. The housing has the emitter and the receiver disposed therein and also has the optical window formed therein. The heater supplies heat to the optical window. The power conductor connects with the heater and extends outside the housing through the outlet hole. The guide is disposed in the housing and works to guide movement of the power conductor toward the outlet hole. The guide is equipped with a cover which covers at least a portion of the power conductor and is less able to reflect light emitted from the emitter and light reflected from the object than the power conductor. | 2021-12-02 |
20210373135 | Low Profile Optical Sensor - The invention pertains to a low-profile, optical sensor to measure distance having a light emitter and a light sensor. More particularly, the optical sensor includes a focusing film having a series of blinds to filter diffused reflected light without the need for a focusing lens. The optical sensors can be used in a variety of applications, including using two sensors to measure thickness of an object or the use of 3 sensors to determine the angle between two surfaces. The invention further pertains to a calibration sensor and method of calibration using 3 or more optical sensors to level a showerhead and a chuck in a semi-conductor deposition apparatus. | 2021-12-02 |
20210373136 | METHOD AND APPARATUS FOR DETECTING AN OBJECT USING OPTICAL PULSES WITH NON-UNIFORM POWER - There is provided a method and apparatus for detecting an object, especially an object remotely placed in a field of view (FOV) using optical pulses with non-uniform pulse power, without exceeding the Accessible Emitted Limit (AEL) A plurality of optical pulses including two or more levels of pulse power may be emitted to detect an object in the FOV. Information related to the object may be generated from the returning optical pulses. The optical pulses with non-uniform pulse power may result in increased probability of detection associated with the pulses returning from the remotely located object, and therefore the density of point clouds associated with the remotely located object may be increased. | 2021-12-02 |
20210373137 | LIDAR TEST SYSTEMS - Systems and components for testing a light detection and ranging (LIDAR) device under test (DUT) are described. In one example, an ellipsoid is adapted to receive the LIDAR DUT at a first focal point, where light transmitted from the LIDAR DUT is incident on the second focal point. In another example a plurality of optical waveguides arranged in at least a portion of a circle, and the plurality of optical waveguides are adapted to receive light from the LIDAR DUT. In another example, a LIDAR distance simulator is adapted to receive an optical input, and includes optical switches that are selectively connected to one of a plurality of optical delay devices to an input of the one of a plurality of optical input channels. Illustrative delay elements may be realized through optical delay elements or a combination of optical and electrical delay elements. | 2021-12-02 |
20210373138 | DYNAMIC LIDAR ALIGNMENT - Systems and method are provided for controlling a vehicle. In one embodiment, a method includes: recording, by a controller onboard the vehicle, lidar data from the lidar device while the vehicle is travelling on a straight road; determining, by the controller, that the vehicle is travelling straight on the straight road; detecting, by the controller, straight lane marks on the straight road; computing, by the controller, lidar boresight parameters based on the straight lane marks; calibrating, by the controller, the lidar device based on the lidar boresight parameters; and controlling, by the controller, the vehicle based on data from the calibrated lidar device. | 2021-12-02 |
20210373139 | SONAR SYSTEM - A sonar system includes a towfish comprising a first body linked to a second body, the first body being elongate along a longitudinal axis and comprising a plurality of acoustic transmitters distributed along the longitudinal axis, the sonar system comprising a cable linked to the second body and via which a surface carrier ship is intended to tow the towfish, the first body being mounted to pivot, with respect to the second body, about an axis of rotation so that, the first body can switch, by pivoting with respect to the second body about the axis of rotation, from an operational position to a capture position; the axis of rotation being substantially an axis of movement of the towfish, the longitudinal axis being substantially vertical in the operational position of the first body and being substantially horizontal in the capture position of the first body, when the towfish is totally submerged and towed by the carrier ship. | 2021-12-02 |
20210373140 | SYSTEM AND METHODS FOR THREE DIMENSIONAL MODELING OF AN OBJECT USING A RADIO FREQUENCY DEVICE - A system for generating a three dimension (3D) imaging of an object, the system comprising: an electromagnetic transducer array such as an RF (radio- frequency) antenna array surrounding the object said array comprising: a plurality of electromagnetic transducers; a transmitter unit for applying RF signals to said electromagnetic transducer array; and a receiver unit for receiving a plurality of RF signals affected by said object from said electromagnetic transducers array; a Radio Frequency Signals Measurement Unit (RFSMU) configured to receive and measure said plurality of plurality of affected RF signals and provide RF data of the object; and at least one processing unit, configured to process said RF data to identify the dielectric properties of said object and construct a 3D image of said object. | 2021-12-02 |
20210373141 | PHASED ARRAY FRONT-END DEVICES - A radar system includes a transmit front end device including a transmit planar component, and a receive front end device including a receive planar component. Each of the transmit planar component and the receive planar component includes a first end, a second end, a cavity space and a linear array of antennas. The cavity space is bounded by beam ports along a first side of the cavity space and by array ports along a second side of the cavity space. The cavity space is in operative communication with the beam ports and with the array ports to form a Rotman lens. A linear array of antennas is located along the second end of the planar component. The transmit planar component and receive planar component are arranged such that the linear array of antennas of the transmit planar component and the linear array of antennas are perpendicular to one another. | 2021-12-02 |
20210373142 | DEVICE AND METHOD FOR ULTRA-WIDE BAND RANGING - The present invention relates to an ultra-wide band (UWB) ranging device and a UWB ranging method using the same. The UWB ranging device includes a memory in which a program for UWB ranging is stored, and a processor configured to execute the program, wherein the UWB ranging device performs the UWB ranging by transmitting an integrated packet that includes a Scrambled Timestamp Sequence (STS) and a payload. | 2021-12-02 |
20210373143 | DYNAMIC RADAR DETECTION THRESHOLD FOR STATEFUL DYNAMIC FREQUENCY SELECTION - Embodiments are directed to a dynamic radar detection threshold for stateful dynamic frequency selection (DFS). An embodiment of a storage medium includes instructions to operations including estimate a duty time of transmission of wireless signals by an access point, the access point to provide Wi-Fi communication, the wireless signals being communicated on a DFS channel of the access point, adapt, based at least in part on the duty time of transmission, a threshold of radar signals to indicate detection of a radar signal at the access point on the DFS channel, and perform analysis of received wireless signals on the DFS channel at the access point to detect the radar signal using the adapted threshold of radar signals. | 2021-12-02 |
20210373144 | RADAR APPARATUS AND METHOD - Aspects of the present disclosure are directed to radar signaling utilizing a non-uniform multi input/multi output (MIMO) antenna array including first and second uniform MIMO antenna arrays respectively having both sparsely-arranged transmitting antennas and sparsely-arranged receiving antennas. Communication circuitry is configured to determine a direction of arrival of reflections of radar signals transmitted by the transmitting antennas and received by the receiving antennas, by comparing the reflections received by the first MIMO array with the reflections received by the second MIMO array during a common time period (e.g., at the same time). Using this approach, the antenna arrays may be utilized to provide co-prime spacing/elements and to suppress ambiguities in received reflections based on alignment thereof. | 2021-12-02 |
20210373145 | RF-DAC DIGITAL SIGNAL MODULATION - Radar frequency range signals (e.g., 1 to 100 gigahertz) are often generated by upconverting a reference frequency to a transmission frequency, and a received signal may be downconverted to analyze information encoded on the transmission via modulation. Modulation may be achieved via a fractional frequency divider in a phase-locked loop, but fractional spurs may reduce the signal-to-noise ratio. Additionally, the ramp slope may vary due to phase-locked loop momentum. Instead, a clock generator may generate clock signals for a digital front end comprising a digital signal modulator that generates modulated digital values comprising quadrature representations of a radar modulation signal, which are encoded by a radiofrequency digital-to-analog converter (RF-DAC). The RF-DAC analog signal may be upconverted to a radar frequency and transmitted. A receiver may receive, downconvert, and analyze a reflection of the radar transmission, e.g., to perform range detection based on a frequency ramp encoded by the radar transmission. | 2021-12-02 |
20210373146 | METHOD AND DEVICE FOR DETECTING CRITICAL TRANSVERSE MOVEMENTS - A method for detecting critical transverse movements. The method includes the following steps: emitting a CW radar signal and generating radar data based on the received reflected CW radar signal with the aid of a radar device; ascertaining collision-relevant spectral ranges of the radar data as a function of an ego velocity of the radar device; ascertaining a time dependency of a relative velocity and of an object angle of an object by evaluating the radar data in the ascertained spectral ranges; and detecting a critical transverse movement of the object using the time dependency of the relative velocity and of the object angle of the object. | 2021-12-02 |
20210373147 | TRACKING A TARGET USING DOPPLER SHIFT - For tracking a target, a method receives a first target signal reflected by a target for a first transmitter/receiver pair. The method receives a second target signal reflected by the target for a second transmitter/receiver pair or transmitter signal characteristics for a transmitter of the first transmitter/receiver pair. The method determines Doppler frequencies based on the first target signal and the second target signal or the transmitter signal characteristics. The method determines a target position and a target velocity vector for the target based on the Doppler frequencies. | 2021-12-02 |
20210373148 | METHOD AND APPARATUS FOR POSITIONING TERMINAL DEVICE - This application provides a method and an apparatus for positioning a terminal device. The method includes: generating, by a terminal device, a first message, where the first message includes one or more pieces of first time difference information, and the first time difference information includes a first time difference and information about a first positioning reference signal pair corresponding to the first time difference, where the first positioning reference signal pair includes a first uplink positioning reference signal and a first downlink positioning reference signal that have an association relationship, and the first time difference is a time difference between a sending time point of the first uplink positioning reference signal and a receiving time point of the first downlink positioning reference signal; and sending, by the terminal device, the first message to a network device. | 2021-12-02 |
20210373149 | Agile Interference Detection and Mitigation for Multicarrier Phase Ranging Systems - A multicarrier phase ranging system and method are provided. Generally, the method includes performing a handshake between first and a second transceiver to negotiate a list of channels and a start-time for a multicarrier phase ranging process. The process includes in a first cycle exchanging a Constant Tone (CT) between the first and second transceiver in a first epoch on a first channel, and processing the CT received in the first and second transceiver to measure a difference in phase between the CT received and a reference signal. The CT received is checked for interference using software or hardware in either or both of the first and second transceiver. If no interference is detected the first and second transceiver switch to another channel and exchange the CT at a next epoch. If interference is detected, at least one channel is skipped for at least a subsequent epoch. | 2021-12-02 |
20210373150 | METHOD OF CUSTOMIZED SORTING WITH WAYFINDING CAPABILITY - In an example, information related to a user of a mobile device and to an item associated with the user is received from a network. Based on the information a screening threshold is determined. The screening threshold is communicated to an electronic physical screening device and a direction instruction, indicating a location of a physical screening area corresponding to the electronic physical screening device, is communicated to the mobile device. The direction instruction causes the mobile device to display a direction information, directing the user to the physical screening area, for a physical screening in accordance with the threshold. | 2021-12-02 |
20210373151 | ELECTRONIC DEVICE, CONTROL METHOD OF ELECTRONIC DEVICE, AND CONTROL PROGRAM OF ELECTRONIC DEVICE - An electronic device comprises a plurality of sensors and a main controller. The plurality of sensors are each configured to detect, based on a transmission signal transmitted from a transmission antenna as transmission waves and a reception signal received by a reception antenna as reflected waves, an object reflecting the transmission waves T. The main controller is configured to control the plurality of sensors independently of each other. | 2021-12-02 |
20210373152 | RADAR DEVICE - A radar device is disclosed. The present disclosure in some embodiment provides a radar device configured to detect a target in front by using an antenna configured to transmit and receive a radar signal, including a housing having an upper side formed with an aperture to which a radome is coupled, a radar package disposed inside the housing and comprising the antenna, a signal processor, and a target information calculator, and a circuit board mounted with the radar package and a power block. | 2021-12-02 |
20210373153 | PREDICTING WEATHER RADAR IMAGES - Predicting weather radar images by building a first machine learning model to generate first predictive radar images based upon input weather forecast data, and a second machine learning model to generate second predictive radar images based upon historical radar images and the first predictive radar images. Further by generating enhanced predictive radar images by providing the first machine learning model weather forecast data for a location and time and providing the second machine learning model with historical radar images for the location and an output of the first machine learning model. | 2021-12-02 |
20210373154 | ADAPTIVE ULTRASOUND FLOW IMAGING - The present disclosure describes ultrasound systems configured to enhance flow imaging and analysis by adaptively adjusting one or more imaging parameters in response to acquired flow measurements. Example systems can include an ultrasound transducer and one or more processors. Using the system components, mean flow velocity magnitude and acceleration can be determined within a target region during an acquisition phase, which may include a cardiac cycle. One or more adjusted flow imaging parameters, such as adjusted ensemble length, temporal smoothing filter length and/or step size, can be determined based on the acquired flow measurements to increase the signal quality of newly acquired ultrasound echo signals. The adjusted flow imaging parameters can then be applied by the ultrasound transducer during a second acquisition phase. | 2021-12-02 |
20210373155 | LIGHT RANGE FINDING APPARATUS - A light range finding apparatus is provided with a light emitting optical system that projects a pattern light having an irradiation region and a non-irradiation region; a light receiving sensor including an arrayed light receiving element; a light receiving optical system that receives a reflected light of the pattern light and enlarges a portion of the reflected light corresponding to the irradiation region to be larger than a single light receiving element and causes the enlarged reflected light to be incident on the light receiving sensor; a distance measurement unit that measures a distance to the object based on an output of the light receiving sensor; and a positional alignment section that performs, based on the output of the light receiving sensor, a positional alignment of at least a part of the light emitting optical system and the light receiving optical system. | 2021-12-02 |
20210373156 | OPTICAL DISTANCE MEASURING APPARATUS - An optical distance measuring apparatus comprises a laser diode emitting a light pulse, light receiver including a photon-counting light receiver, distance measurement unit including a signal discriminator and propagation estimator, and threshold determiner. The signal discriminator discriminates the signal component, exceeding a threshold, of the signal as a reflected signal resulting from reflection of the light pulse at a measurement object. The propagation estimator estimates a round-trip propagation time of the light pulse to the measurement object using the signal. The threshold determiner sets a boundary level as the threshold, corresponding to a reference level obtained from the signal when the signal discriminator determines the reflected signal, using the relationship between the reference and the boundary level. The reference level is obtained from the average value of a noise probability distribution in the signal. The boundary level represents a predetermined cumulative probability in the noise probability distribution. | 2021-12-02 |
20210373157 | Ambiguity Mitigation for FMCW Lidar System - An FMCW Doppler lidar system and method for use in a host vehicle includes a laser system, lenses, a homodyne receiver, and a signal processing unit (SPU). The laser beam is modulated to generate a frequency waveform with three segments, i.e., Doppler, up-ramp, and down-ramp. The lenses transmit laser beams toward a target-of-interest, and receive return beams reflected from the target-of-interest. The homodyne receiver has photoreceptors configured to mix the return beams with a respective local oscillator beam to generate a three-section return waveform. The SPU is coupled to the photoreceptors and calculates a respective magnitude and frequency of an up-ramp, down-ramp, and/or Doppler IF section of the return waveform, estimates a sign of the IF sections, and calculates a range and/or velocity relative to the target-of-interest using the estimated sign, and controls the host vehicle using the range and/or velocity. | 2021-12-02 |
20210373158 | DETECTING APPARATUS AND ON-BOARD SYSTEM INCLUDING THE SAME - Provided is a detecting apparatus including a light source emitting an illumination light flux, a light receiving element receiving a reflected light flux from an object, a deflection unit deflecting illumination light flux toward the object to scan the object and deflecting reflected light flux toward light receiving element, a splitting unit allowing illumination light flux from light source to proceed toward deflection unit and allowing reflected light flux from deflection unit to proceed toward light receiving element, and a first telescope increasing a diameter of illumination light flux deflected by deflection unit, and decreasing a diameter of reflected light flux from the object in which the deflection unit is arranged so that a light path of a principal ray of illumination light flux at a center angle of view in a scanning range of deflection unit is prevented from coinciding with an optical axis of first telescope. | 2021-12-02 |
20210373159 | ToF DISTANCE SENSOR AND ELECTRONIC DEVICE - A ToF distance sensor comprises a light-emitting element configured to emit pulsed light; a first light collector configured to collect the pulsed light emitted from the light-emitting element; a light-receiving element; and a cover provided with a first region configured to output the pulsed light collected by the first light collector to an outside, and a second region configured to cause the pulsed light reflected by a target measurement object to be incident toward the light-receiving element, wherein the first region is a scattering region configured to scatter the pulsed light. | 2021-12-02 |
20210373160 | ENABLING LIDAR DETECTION - A system for detecting a vehicle includes a light source configured to emit a light signal. The system also includes a receiver sensor configured to receive a reflected light signal based at least in part on the light signal reflected from a plurality of reflectors. The system also includes a controller, the controller configured to identify an arrangement pattern of the plurality of reflectors based at least in part on the reflected light signal and determine that plurality of reflectors are coupled to another vehicle based at least in part on an identification of the arrangement pattern. | 2021-12-02 |
20210373161 | LIDAR LOCALIZATION USING 3D CNN NETWORK FOR SOLUTION INFERENCE IN AUTONOMOUS DRIVING VEHICLES - In one embodiment, a method for solution inference using neural networks in LiDAR localization includes constructing a cost volume in a solution space for a predicted pose of an autonomous driving vehicle (ADV), the cost volume including a number of sub volumes, each sub volume representing a matching cost between a keypoint from an online point cloud and a corresponding keypoint on a pre-built point cloud map. The method further includes regularizing the cost volume using convention neural networks (CNNs) to refine the matching costs; and inferring, from the regularized cost volume, an optimal offset of the predicted pose. The optimal offset can be used to determining a location of the | 2021-12-02 |
20210373162 | LENS AND INTEGRATED BEAM TRANSCEIVER BASED LIDAR DETECTION DEVICE - Lidar detection device based on a lens and an integrated beam transceiver, comprising a laser, a coupling fiber, a substrate, an input waveguide, a connection waveguide, a 1×N optical switch, a switch electrical interface, N switch output waveguides, N transceiving units, an off-chip processor and a lens, wherein N is a positive integer above 2. The invention can realize three-dimensional detection of a target, and the invention has the characteristics of two-dimensional beam steering independent of wavelength switching, low control complexity, low electric power consumption, receiving and emitting monolithic integration and high receiving efficiency, and being compatible with two laser ranging functions of ToF and FMCW. | 2021-12-02 |
20210373163 | METHOD FOR OBTAINING DEPTH INFORMATION, AND CAMERA MODULE - According to one embodiment, disclosed is a method for obtaining a depth image for an object, by using light obtained during a first period and a second period in a camera module capable of obtaining depth information. The camera module can obtain the depth image for the object by using the light obtained in a first reception pixel and a second reception pixel during the first period and the second period. | 2021-12-02 |
20210373164 | IMAGING SENSOR - The invention relates to imaging 3-D time-of-flight sensors that are particularly suitable for the detection of objects and individuals in three-dimensional space. This capability results from the basic principle. In each image point of the sensor, the distance to the object located in the observation space is determined by using the propagation time (time of flight) of light pulses. The sensor therefore supplies a three-dimensional image, which can be analyzed by means of suitable processing algorithms. In specific applications, in particular in the interaction of human and machine, machine and machine, or machine and space, it is necessary that the detection is carried out safely. The level of safety is classified in various standards into safety integrity levels. | 2021-12-02 |
20210373165 | CAPTURING ENVIRONMENTAL SCANS USING LANDMARKS BASED ON SEMANTIC FEATURES - A method for performing a simultaneous location and mapping of a scanner device includes detecting a set of lines in a point cloud, and identifying a semantic feature based on the set of lines. The method further includes assigning a first scan position of the scanner device in the surrounding environment at the present time t | 2021-12-02 |
20210373166 | THREE-DIMENSIONAL (3D) SCANNER WITH 3D APERTURE AND TILTED OPTICAL BANDPASS FILTER - A three-dimensional ( | 2021-12-02 |
20210373167 | ALIGNMENT AND REGISTRATION SYSTEM AND METHOD FOR COORDINATE SCANNERS - An example method includes moving a base unit through an environment, the base unit comprising the first scanner and the second scanner. The method further includes capturing, by the first scanner, a first scan of the environment, the first scan comprising at least one first scanline The method further includes capturing, by the second scanner, a second scan of the environment, the second scan comprising at least one second scanline, wherein the second scanner scans about a first axis at a first speed and scans about a second axis at a second speed. The method further includes determining, by a processing system, an intersection at an object surface between one of the at least one first scanline and one of the at least one second scanline The method further includes aligning, by the processing system, the first scan and the second scan based at least in part on the intersection. | 2021-12-02 |