40th week of 2021 patent applcation highlights part 40 |
Patent application number | Title | Published |
20210311140 | MAGNETIC FIELD SENSOR AND METHOD FOR MAKING SAME - A multi-element sensor for measuring a magnetic field. The multi-element sensor comprises a magnetic sensing element, and an electronic circuit. The magnetic sensing element comprises a sensor substrate and a magnetic sensor. The magnetic sensing element is mounted on the electronic circuit and contact pads are provided on the magnetic sensor. The contact pads of the magnetic sensing element are electrically connected with the electronic circuit. The electronic circuit is produced in a first technology and/or first material and the magnetic sensing element is produced in a second technology and/or second material different from the first technology/material, and the contact pads are disposed next to an edge or at a corner of the sensor substrate. | 2021-10-07 |
20210311141 | AMR (XMR) SENSOR WITH INCREASED LINEAR RANGE - Anisotropic-magnetoresistive (AMR) sensors are described. The AMR sensors have a barber pole structure with multiple constant width sections of different width. In some embodiments, two sections of greater, constant width are positioned at ends of the AMR sensor, with a section of smaller width positioned in between. The sections of greater width may have a total length less than the section of smaller width. The structures described may provide enhanced linearity. | 2021-10-07 |
20210311142 | MAGNETIC VALIDATION - An apparatus for validating magnets on site, including a standard reference magnet for providing a governing reference, a reference magnet for providing a reference based on the governing reference, a gauss meter, a hall probe, and a scanner. The reference magnet is arranged to be taken on site for further magnetic validation and includes guide members to target a nominated magnetic field density. | 2021-10-07 |
20210311143 | SYSTEM AND METHODS FOR GROUNDING PATIENTS DURING MAGNETIC RESONANCE IMAGING - A magnetic resonance imaging (MRI) system, comprising a magnetics system having a plurality of magnetics components configured to produce magnetic fields for performing magnetic resonance imaging, electromagnetic shielding provided to attenuate at least some electromagnetic noise in an operating environment of the MRI system, and an electrical conductor coupled to the electromagnetic shielding and configured to electrically couple to a patient during imaging of the patient by the MRI system. The magnetics system may include at least one permanent B | 2021-10-07 |
20210311144 | ACTIVE SWITCHING FOR RF SLICE-SELECTING - A magnetic resonance (MR) imaging system includes a transmit radio frequency (RF) coil assembly comprising multiple capacitor banks each coupled to at least one diode that is characterized by a high breakdown voltage such that when the transmit RF coil assembly applies at least one slice-selecting RF pulse to a portion of a subject placed in the magnet to select a particular slice for MR imaging, the capacitor banks are selectively adjusted to improve an RF transmission characteristics of the RF coil assembly in transmitting the at least one slice-selecting RF pulse. The MR imaging system may further include a receive radio frequency (RF) coil assembly configured to, in response to at least the slice-selecting RF pulse, receive at least one response radio frequency (RF) pulse emitted from the selected slice of the portion of the subject; a housing; a main magnet; gradient coils; and a control unit. | 2021-10-07 |
20210311145 | Multi-Echo Radial Look-Locker Imaging for Simultaneous T1 and Fat Fraction Quantification - A method for using a multi-echo magnetic resonance imaging (MRI) simultaneously quantify T1 and fat fraction in an anatomical region of interest includes performing a radial single shot multi-echo acquisition of the anatomical region of interest. The radial single shot multi-echo acquisition comprises applying a preparation pulse to invert longitudinal magnetization of the anatomical region of interest, and acquiring a plurality of radial readouts at different echo times (TE). A magnetization recovery curve is continuously sampled using the plurality of radial readouts to yield a plurality of radial spokes. The radial spokes for each TE are ground together to generate under-sampled k-space data for each TE. The under-sampled k-space data is reconstructed into a plurality of multi-echo images corresponding to the different echo times. One or more fitting algorithms are applied to the multi-echo images to generate a water-only T1 map and a proton density fat fraction (PDFF) measurement. | 2021-10-07 |
20210311146 | MAGNETIC RESONANCE FINGERPRINTING THERMOMETRY - A method for temperature quantification using magnetic resonance fingerprinting (MRF) includes acquiring MRF data from a region of interest in a subject using an MRF pulse sequence with smoothly varying RF phase for MR resonant frequencies that is played out continuously. For each of a plurality of time intervals during acquisition of the MRF data the method further includes comparing a set of the MRF data associated with the time interval to an MRF dictionary to determine at least one quantitative parameter of the acquired MRF data, determining a temperature change based on the at least one quantitative parameter and generating a quantitative map of the temperature change in the region of interest. The region of interest can include aqueous and adipose tissue. | 2021-10-07 |
20210311147 | SYSTEMS AND METHODS FOR SIGNAL SYNCHRONIZATION IN MRI DEVICE - Systems and methods for MR signal synchronization may be provided. The method may include determining a time difference in a local clock generator at a coil side assembly compared to a system clock generator at a system side assembly. The method may include maintaining a constant phase difference between clock signals generated by the local clock generator and by the system clock generator by correcting the local clock generator based on the time difference. The method may include acquiring MR echo signals by scanning at least a part of a subject in response to the clock signal generated by the corrected local clock generator. The method may further include digitizing the MR echo signal at the coil side assembly. | 2021-10-07 |
20210311148 | SUBTLE INTENSITY GRADUATING HOMOMORPHIC TRANSFORM TO IMPROVE CONSPICUITY OF LOW-INTENSITY PATHOLOGIES - The present disclosure is directed to systems and methods for visualizing low-intensity pathologies or anatomical structures. The method can include applying, via a MRI machine, an RF pulse configured to suppress the imaging of fat in the subject and acquiring, via the MRI machine, an image of the subject. A subtle intensity graduating homomorphic transform is applied to the acquired image to provide improved visualized of the low-intensity pathology or anatomical structure. The resulting transformed image can be output to the user. | 2021-10-07 |
20210311149 | TENSOR FIELD MAPPING - During operation, a system may apply an external magnetic field and an RF pulse sequence to a sample. Then, the system may measure at least a component of a magnetization associated with the sample, such as MR signals of one or more types of nuclei in the sample. Moreover, the system may calculate at least a predicted component of the magnetization for voxels associated with the sample based on the measured component of the magnetization, a forward model, the external magnetic field and the RF pulse sequence. Next, the system may solve an inverse problem by iteratively modifying the parameters associated with the voxels in the forward model until a difference between the predicted component of the magnetization and the measured component of the magnetization is less than a predefined value. Note that the calculations may be performed concurrently with the measurements and may not involve performing a Fourier transform. | 2021-10-07 |
20210311150 | TENSOR FIELD MAPPING - During operation, a system may apply an external magnetic field and an RF pulse sequence to a sample. Then, the system may measure at least a component of a magnetization associated with the sample, such as MR signals of one or more types of nuclei in the sample. Moreover, the system may calculate at least a predicted component of the magnetization for voxels associated with the sample based on the measured component of the magnetization, a forward model, the external magnetic field and the RF pulse sequence. Next, the system may solve an inverse problem by, iteratively modifying the parameters associated with the voxels in the forward model until a difference between the predicted component of the magnetization and the measured component of the magnetization is less than a predefined value. Note that the calculations may be performed concurrently with the measurements and may not involve performing a Fourier transform. | 2021-10-07 |
20210311151 | MAXWELL PARALLEL IMAGING - During operation, a computer system may acquire magnetic resonance (MR) signals associated with a sample from a measurement device or memory. Then, the computer system may access a predetermined set of coil magnetic field basis vectors associated with a surface surrounding the sample, where coil sensitivities of coils in the measurement device are represented by weighted superpositions of the predetermined set of coil magnetic field basis vectors using coefficients, and where the predetermined coil magnetic field basis vectors are solutions to Maxwell's equations. Next, the computer system may solve, on a voxel-by-voxel basis for voxels associated with the sample, a nonlinear optimization problem for MR information associated with the sample and the coefficients using: a forward model that uses the MR information as inputs and simulates response physics of the sample, the MR signals and the predetermined set of coil magnetic field basis vectors. | 2021-10-07 |
20210311152 | SYSTEMS AND METHODS FOR MAGNETIC RESONANCE IMAGING - A method for magnetic resonance imaging (MRI) is provided. The method may include obtaining scan data of a subject. The scan data may be acquired by an MR scanner at a time according to a pulse sequence. The method may include obtaining motion data of the subject. The motion data of the subject may be acquired by one or more sensors at the time. The motion data may reflect a motion state of the subject at the time. The method may also include determining, based on the motion data of the subject, a processing strategy indicating whether using the scan data to fill one or more k-space lines corresponding to the pulse sequence in a k-space. The method may further include obtaining k-space data based on the processing strategy. | 2021-10-07 |
20210311153 | Method and Apparatus for Calibrating a Measurement Device - Systems, apparatuses, and methods are described for calibration of a current transformer. In some examples, one or more electrical elements may be affected in order to set a calibration of the current transformer. A calibration circuit of the current transformer may be permanently or non-permanently affected according to a calibration code in order to set the calibration of the current transformer. For example, one or more fuses may be burned to lock in a certain configuration of the current transformer. | 2021-10-07 |
20210311154 | CURRENT-MEASURING TRANSDUCER DEVICE HAVING A CURRENT-MEASURING TRANSDUCER AND METHOD FOR CALIBRATING A CURRENT-MEASURING TRANSDUCER - A current-measuring transducer device has a current transducer for measuring an electric current along a conduction path. The current transducer has a magnetic field-sensitive element for converting the magnetic field resulting from the current flow along the conduction path into at least one physical variable and a measuring device for measuring the physical variable. The current transducer device has a coil arrangement with at least one coil for simulating the magnetic field resulting from the current flow along the conduction path. There is also described a method for calibrating a corresponding current transducer and a computer program product for performing the calibration method. | 2021-10-07 |
20210311155 | Identifying angle of departure of multi-antenna transmitters - A method for signal processing includes receiving at a given location at least first and second signals transmitted respectively from at least first and second antennas ( | 2021-10-07 |
20210311156 | RETROSPECTIVE INTERFEROMETRY DIRECTION FINDING - Using captured and stored wideband historical radio frequency data bearing information to the source of a signal of interest achieved using as few as two receivers and a plurality of commutating antennas. Wideband IQ data streams are received at two or more receivers and stored for later analysis. A first receiver is coupled to a reference antenna and a second receiver is commutatively coupled to a plurality of commutating antennas. Later, streams of wideband IQ data are retrieved for a select period of time and synchronized. From these streams a signal of interest identified and synchronously sampled over an acquisition interval by each receiver. Phase differences of the signal at each of the plurality commutating antennas is measured enabling a determination of the bearing to the common signal of interest. | 2021-10-07 |
20210311157 | MEASURING CIRCUIT, MEASURING DEVICE, AND PROGRAM - A measuring circuit is provided including a reception strength acquisition unit ( | 2021-10-07 |
20210311158 | ON DEMAND POSITIONING REFERENCE SIGNALS AND PER BAND DEPLOYMENT ASPECTS - Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) transmits a request for a first set of base stations to transmit on demand positioning reference signals (PRS) in a first band, measures the on demand PRS from the first set of base stations in the first band, measures periodic PRS from a second set of base stations operating in a second band, and sends, to a positioning entity, positioning measurements of at least the on demand PRS and the periodic PRS. | 2021-10-07 |
20210311159 | ESTABLISHING A DIRECT COMMUNICATION LINK WITH AN OTHER VEHICLE IN THE VICINITY OF A MOTOR VEHICLE - A communication link is established from a motor vehicle to an other vehicle in the vicinity of the motor vehicle by receiving configuration data from the other vehicle, and determining a relative position of the other vehicle relative to the motor vehicle. A virtual display, which indicates the other vehicle as a possible communication partner, is provided for a user of the motor vehicle by at least partially using the relative position of the other vehicle and the configuration data. A communication command is received from the user, by which the other vehicle is selected as the communication partner. A direct communication link is then established with the other vehicle having been selected as the communication partner. | 2021-10-07 |
20210311160 | METHOD AND APPARATUS FOR TDOA WIRELESS POSITIONING USING DESTRUCTIVE INTERFERENCE OF MULTIPLE ANCHOR NODES - The present invention relates to a method and apparatus for TDOA wireless positioning, has an effect of reducing positioning errors by reducing TDOA errors using destructive interference of multiple anchor nodes by dividing four or more anchor nodes into sets of three or more anchor nodes and by estimating a position of a tag node using TDOA of each set, and has an advantage of reducing the size and weight of the tag node since separate hardware is not required. | 2021-10-07 |
20210311161 | TRILATERATION-BASED SATELLITE LOCATION ACCURACY FOR IMPROVED SATELLITE-BASED GEOLOCATION - The present disclosure relates generally to satellite communication systems, and, more particularly, to trilateration-based satellite location accuracy for improved satellite-based geolocation are provided. In one embodiment, a method comprises: determining, by a processing device, a location of each of a plurality of reference antennas with known locations; obtaining a plurality of distances between a communication satellite and the plurality of reference antennas, each distance of the plurality of distances corresponding to a respective reference antenna of the plurality of reference antennas, at least one distance of the plurality of distances based on an echo message communicated between a particular reference antenna of the plurality of reference antennas and the communication satellite; determining an accurate location of the communication satellite based on trilateration of the plurality of distances from the known locations of the plurality of reference antennas; and utilizing the accurate location of the communication satellite. | 2021-10-07 |
20210311162 | METHOD, APPARATUS, AND SYSTEM FOR WIRELESS MONITORING TO ENSURE SECURITY - Methods, apparatus and systems for wireless motion monitoring to ensure security are described. In one example, a described system comprises: a transmitter configured for transmitting a first wireless signal through a wireless multipath channel of a venue; a receiver configured for receiving a second wireless signal through the wireless multipath channel; and a processor. The second wireless signal differs from the first wireless signal due to the wireless multipath channel and a motion of an object in the venue. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal; computing a spatial-temporal information (STI) based on the TSCI; monitoring the motion of the object based on the TSCI and the STI; performing a task based on the monitoring; and generating a response based on the task. | 2021-10-07 |
20210311163 | SYSTEM AND METHOD FOR IMPROVING SIGNAL QUALIFICATION - A system may include a processor configured to: receive ambient data from an environment; calculate an average amplitude of the ambient data as a measure of a noise floor; receive a signal of interest found by the signal exceeding a noise riding threshold, the noise riding floor being an upward offset from the noise floor; calculate a running average for amplitude and frequency of the signal of interest; calculate a running variance for the amplitude and the frequency of the signal of interest; use the running average and the running variance to provide an adjustment to limits for modulation detection; use an offset from the noise riding threshold to provide a signal qualification minimum amplitude; and qualify the signal of interest based at least on the signal qualification minimum amplitude. | 2021-10-07 |
20210311164 | RADAR SYSTEM WITH BALANCING OF THE RECEIVING CHANNELS OVER A PLURALITY OF RADAR CHIPS - A radar system includes a first radar chip having one or more receiving channels and a second radar chip having one or more receiving channels, wherein the receiving channels of the first and second radar chips each have an RF input port and are configured to provide, based on an RF input signal received at the RF input port, a corresponding digital baseband signal that is characterizable by at least one signal parameter. The radar system further includes a power divider configured to forward an RF signal to both a first receiving channel integrated in the first radar chip and to a second receiving channel integrated in the second radar chip. A processor is configured to determine information indicating a deviation between the signal parameter of the digital baseband signal of the first receiving channel and the corresponding signal parameter of the digital baseband signal of the second receiving channel. | 2021-10-07 |
20210311165 | SENSING SYSTEM FOR AN INTERACTIVE SYSTEM - An interactive system includes a device configured to output a signal toward a surface such that the signal reflects off the surface at an angle and along a path of travel, and such that an object that interrupts the path of travel of the signal causes a return signal to travel in a reverse direction along the path of travel for receipt by the device. The interactive system also includes a control system communicatively coupled to the device. The control system is configured to receive data from the device, in which the data is associated with the receipt of the return signal by the device, and determine a position of the object relative to the device based on the data. | 2021-10-07 |
20210311166 | METHOD, APPARATUS, AND SYSTEM FOR WIRELESS MICRO MOTION MONITORING - Methods, apparatus and systems for wirelessly monitoring a micro motion of an object are described. In one example, a described system comprises: a transmitter configured for transmitting a first wireless signal through a wireless multipath channel of a venue; a receiver configured for receiving a second wireless signal through the wireless multipath channel; and a processor. The second wireless signal differs from the first wireless signal due to the wireless multipath channel and a motion of an object in the venue. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, wherein each channel information (CI) of the TSCI comprises N1 CI components; selecting N2 CI components from the N1 CI components based on a first analysis of the N1 CI components; computing a micro-motion (MM) statistics based on the N2 selected CI components and the first analysis; monitoring the motion of the object based on a second analysis of the MM statistics; performing a task based on the first analysis and the second analysis; and generating a response based on the task, the first analysis and the second analysis. | 2021-10-07 |
20210311167 | Multisensor Data Fusion Method and Apparatus - A multisensor data fusion perception method includes receiving feature data from a plurality of types of sensors, obtaining static feature data and dynamic feature data from the feature data, constructing current static environment information based on the static feature data and reference dynamic target information, and constructing current dynamic target information based on the dynamic feature data and reference static environment information such that construction of a dynamic target and construction of a static environment are performed by referring to each other's construction results and the perception capability is for the dynamic target and the static environment that are in an environment in which the moving carrier is located. | 2021-10-07 |
20210311168 | RADAR DETECTION SYSTEM FOR NON-CONTACT HUMAN ACTIVATION OF POWERED CLOSURE MEMBER - A radar detection system for activation of a powered closure member of a vehicle and corresponding method are provided. The system includes a radar sensor assembly having a radar transmit antenna for transmitting radar waves and a radar receive antenna for receiving the radar waves after reflection from an object in a detection zone. The radar sensor assembly outputs a sensor signal corresponding to the motion of the object in the detection zone. An electronic control unit is coupled to the radar sensor assembly and includes a data acquisition module to receive the sensor signal and a plurality of analysis modules to analyze the sensor signal to detect extracted features and determine whether extracted features are within predetermined thresholds representing a valid activation gesture. The electronic control unit initiates movement of the closure member in response to the extracted features being within the predetermined thresholds representing the valid activation gesture. | 2021-10-07 |
20210311169 | RADAR DATA PROCESSING DEVICE, OBJECT DETERMINATION DEVICE, RADAR DATA PROCESSING METHOD, AND OBJECT DETERMINATION METHOD - An object determination method involves acquiring radar data including information records of a radar reflection intensity and a velocity for each orientation and each distance; generating a radar detection image in which each pixel has a plurality of channels for containing data records of a radar reflection intensity, a velocity, and a distance, respectively, the data records corresponding to the position of the pixel; and by using a machine learning model for image recognition trained for object determination, acquiring an object determination result determined based on the radar detection image. In particular, the method includes, based on position data of an object area detected from the radar data of an entire observation area, extracting radar data of the object area from the radar data of the entire observation area; and generating the radar detection image of the object area based on the radar data of the object area. | 2021-10-07 |
20210311170 | LIDAR Instrument and Method for Operating a LIDAR Instrument - A LIDAR instrument and a method for operating a LIDAR instrument are disclosed. In an embodiment a LIDAR instrument includes a transmitter including a narrow band laser diode configured to emit light in a spectral envelope of 2 nm or less around a central wavelength, wherein the spectral envelope overlaps with an atmospheric molecular absorption band in which a solar radiation is attenuated by at least 3 dB compared to an adjacent non-spectrally-attenuated wavelength band, wherein molecular absorption in the atmospheric molecular absorption band is due to water vapor, carbon dioxide, oxygen, ozone methane, or nitrous oxide and wherein the atmospheric molecular absorption band is located between 700 nm and 10,000 nm, and a detector including a filter configured to receive a reflected light in a band of 5 nm or less around the central wavelength. | 2021-10-07 |
20210311171 | IMPROVED 3D SENSING - Broadly speaking, embodiments of the present techniques provide apparatus and methods for generating a three-dimensional (3D) representation of a scene (also known as 3D sensing) using a time-of-flight imaging system. In particular, the present techniques provide an apparatus comprising a time-of-flight imaging camera system that emits illumination having a spatially-nonuniform intensity over afield of view of the sensor that is moved across at least part of the field of view of a sensor using an actuation mechanism. | 2021-10-07 |
20210311172 | FREQUENCY INFORMATION RAPID EXTRACTION FOR RANGING APPLICATIONS - A frequency modulated continuous wave LiDAR system is disclosed that may be scalable and integrated in compact and demanding environments. The improved system of the present disclosure includes: an electro-optic modulator configured to modulate a laser generated by a laser source; a balanced photo detector configured to process an interference signal of a local copy of the laser coupled with a signal of the laser returned from a target and output a beatnote signal; a modulation source with two outputs, wherein the modulation source is configured to sweep in phase across a required bandwidth for the electro-optic modulator and the balanced photo detector; and a Frequency Information Rapid Extraction for Ranging Applications (“FIRE-RA”) system configured to: receive the interference signal from the balanced photo detector, process the interference signal with a signal from one of the two outputs of the modulation source for the balanced photo detector, and output distance and speed data for the target according to the processed interference signal. | 2021-10-07 |
20210311173 | LASER MEASURING DEVICE AND UNMANNED AERIAL VEHICLE - A laser measuring device includes a light transceiving module configured to emit laser pulses and receive laser pulses reflected by a detection object; a scanning module including a rotatable transmissive optical element, the scanning module being configured to change a transmission direction of the laser pulse passing through the scanning module; and a reflection module including a rotatable reflective optical element, the reflective optical element being configured to reflect the laser pulse passing through the reflective optical element, the scanning module and the reflection module being sequentially disposed on a light exiting path of the light transceiving module. | 2021-10-07 |
20210311174 | LIDAR RECEIVING APPARATUS, LIDAR SYSTEM AND LASER RANGING METHOD - A lidar receiving apparatus, a lidar system, a laser ranging method, a laser ranging controller and a computer readable storage medium are provided. The lidar receiving apparatus includes a photodetector ( | 2021-10-07 |
20210311175 | SHARED SAMPLE AND CONVERT CAPACITOR ARCHITECTURE - A LIDAR device includes an input node, an output node, and a sample-and-convert circuit. The input node receives a photodetector signal, and the output node generates an output signal indicating a light intensity value of the photodetector signal. The sample-and-convert circuit includes a number of detection channels coupled in parallel between the input node and the output node. In some aspects, each of the detection channels may be configured to sample a value of the photodetector signal during the sample mode and to hold the sampled value during the convert mode using a single capacitor. | 2021-10-07 |
20210311176 | Method for Determining and Compensating for Stray Light from a 3D Laser Scanner - A method is disclosed for determining and compensating a proportion of stray light of a measuring beam of a 3D laser scanner by which a 3D point cloud of an object to be detected can be generated via phase-based distance measurement including a first sequence by which first parameters of a proportion of stray light can be determined independently of the 3D point cloud and/or a second sequence by which second parameters of the proportion of stray light dependent on the generated 3D point cloud and a step can be determined. The proportion of stray light can be compensated as a function of the first parameters and/or the second parameters. | 2021-10-07 |
20210311177 | LASER TRACKER CALIBRATION SYSTEM AND METHODS - A system and method of calibrating a laser tracker is provided. The system includes a support system for quickly and easily moving an artifact to a desired position and orientation and for holding the artifact in the position and orientation. An adjustable alignment mirror is coupled to a first end of the artifact so that the more accurate ranging system of the laser tracker can be isolated to determine a reference length of the artifact. Additional measurements are then taken to exercise one or more error source within the tracker. The support system includes a positioner and a support beam for positioning and supporting the artifact. The artifact is coupled to the support beam using kinematic clamps that are designed to reduce or eliminate errors associated with over-constraining the artifact. The artifact is movable between a deployed configuration for use and a stowable configuration for ease of storage and transportation. | 2021-10-07 |
20210311178 | DISPERSION COMPENSATION FOR A FREQUENCY-MODULATED CONTINUOUS-WAVE (FMCW) LIDAR SYSTEM - An oscillator system includes a transmitter configured to transmit a frequency modulated continuous wave (FMCW) light beam along a transmission path, where the FMCW light beam includes a plurality of wavelength ramps and a wavelength of the FMCW light beam continuously varies over time; an oscillator structure configured to oscillate about a scanning axis based on a deflection angle of the oscillator structure that continuously varies over time; and a dispersive element arranged in the transmission path and configured to receive the FMCW light beam and output a compensated FMCW light beam along the transmission path, where the dispersive element is configured to compensate for a propagation direction disturbance caused by an oscillation of the oscillator structure. The oscillator structure is arranged in the transmission path and is configured to direct the FMCW light beam or the compensated FMCW light beam towards an output of the transmission path. | 2021-10-07 |
20210311179 | Ultrasound Imaging Transducer Array with Integrated Apodization - A transducer array ( | 2021-10-07 |
20210311180 | RADAR ANTENNA ARRAY, MOBILE USER EQUIPMENT, AND METHOD AND DEVICE FOR IDENTIFYING GESTURE - Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for identifying gesture. A radar antenna array applied to mobile User Equipment (UE) includes a transmit (Tx) antenna array located on a horizontal line and configured to transmit radar waves and a receive (Rx) antenna array including horizontal Rx antennae arranged along a horizontal dimension and/or pitch Rx antennae arranged along a pitch dimension. The horizontal dimension and the pitch dimension are perpendicular to each other. The Rx antenna array is configured to receive echoes caused by reflection of the radar waves. The horizontal Rx antennae are located on the horizontal line where the Tx antenna array is located. The pitch dimension is perpendicular to the horizontal line. A transmitting parameter for transmitting the radar waves and a receiving parameter for receiving the echoes are used at least for identifying a gesture within a radiation range. | 2021-10-07 |
20210311181 | METHOD AND APPARATUS FOR VEHICULAR MICROWAVE IMAGING BY MIRROR REFLECTION IN WIRELESS COMMUNICATION SYSTEM - One embodiment of the present invention relates to a method for performing a vehicle image reconstruction by a sensing vehicle (SV) in a wireless communication system, the method comprising: receiving a plurality of stepped-frequency-continuous-wave (SFCW) from target vehicle (TV); receiving signature waveforms in a different frequency range for the plurality of SFCWs; performing synchronization by using phase-difference-of-arrival (PDoA) based on the signature waveforms; reconstructing one or more virtual images of the TV; and deriving a real image form the determined one of more Virtual Image. | 2021-10-07 |
20210311182 | SPARSE LINEAR ARRAY APPROACH IN AUTOMOTIVE RADARS USING MATRIX COMPLETION - In an embodiment, a method for completing measurements for a uniform linear array from measurements from a sparse linear array is provided. The method includes: receiving a first set of measurements for a sparse linear array by a computing device; generating a second set of measurements for a uniform linear array from the first set of measurements by the computing device; and using matrix completion to determine values for a plurality of missing elements of the generated second set of measurements for the uniform linear array by the computing device. | 2021-10-07 |
20210311183 | VEHICLE REQUEST FOR SENSOR DATA WITH SENSOR DATA FILTERING CONDITION - In an aspect, a vehicle apparatus monitors, via a set of sensors communicatively coupled to the vehicle apparatus, a field of view (FOV) of the vehicle apparatus. The vehicle apparatus transmits, based on the monitoring, a first message that requests sensor data from one or more neighboring devices and indicates at least one sensor data filtering condition for the requested sensor data. A communication device receives the first message, and determines whether sensor data is available at the communication device which satisfies the at least one sensor data filtering condition for the requested sensor data. If so, the communication device filters its sensor data based on the at least one sensor data filtering condition, and transmits, to the vehicle apparatus, a second message including the filtered sensor data. | 2021-10-07 |
20210311184 | DISTANCE MEASURING DEVICE FOR VEHICLE - The present disclosure discloses a distance measuring device for a vehicle. The distance measuring device for the vehicle of the present disclosure includes a fixing portion to be mounted on an outer surface of the vehicle; and a sensor portion which is installed in the fixing portion, irradiates a radio wave to the outside of the vehicle, receives the radio wave from the outside of the vehicle, measures a distance between an object of the outside of the vehicle and the vehicle, or detects the object. | 2021-10-07 |
20210311185 | METHOD AND APPARATUS FOR DETECTING OBJECT - An apparatus includes a drive signal generator that selectively outputs, as a drive signal, one of a first drive signal and a second drive signal. The first drive signal has a first temporal frequency change within a first frequency band that is defined from a first lowest frequency to a first highest frequency inclusive. The second drive signal has a second temporal frequency change within a second frequency band that is defined from a second lowest frequency to a second highest frequency inclusive. Each of the first and second frequency bands has a corresponding one of first and second intermediate frequencies that is defined as one of a center frequency and an average frequency of the corresponding one of the first and second frequency bands. The second intermediate frequency is different from the first intermediate frequency. The second frequency band is partially overlapped with the first frequency band. | 2021-10-07 |
20210311186 | SPARSE EXCITATION METHOD FOR 3-DIMENSIONAL UNDERGROUND CABLE LOCALIZATION BY FIBER OPTIC SENSING - Aspects of the present disclosure describe distributed fiber optic sensing systems, methods, and structures that advantageously are employed to determine the location and depth of underground fiber-optic facilities that may be carrying telecommunications traffic. | 2021-10-07 |
20210311187 | SYSTEMS AND METHODS FOR TAGGING AND LINKING ACOUSTIC IMAGES - Some systems include an acoustic sensor array configured to receive acoustic signals, an electromagnetic imaging tool configured to receive electromagnetic radiation, a position sensor configured to output position information, memory, and a processor. The processor can receive acoustic data from the acoustic sensor array and generate acoustic image data from the received acoustic data. The processor can receive electromagnetic image data from the electromagnetic imaging tool and combine the generated acoustic image data and the received electromagnetic image data to generate a display image. The processor can receive position information from the position sensor, and save the display image in memory associated with the received position information. Position information can be stored in metadata of the display image or displayed within the display image. The processor can be configured to link images stored in memory, such as based on position information associated with such images. | 2021-10-07 |
20210311188 | SYSTEMS AND METHODS FOR ANALYZING AND DISPLAYING ACOUSTIC DATA - Some systems include an acoustic sensor array configured to receive acoustic signals, an electromagnetic imaging tool configured to receive electromagnetic radiation, a user interface, a display, and a processor. The processor can receive electromagnetic data from the electromagnetic imaging tool and acoustic data from the acoustic sensor array. The processor can generate acoustic image data of the scene based on the received acoustic data, generate a display image comprising combined acoustic image data and electromagnetic image data, and present the display image on the display. The processor can receive an annotation input from the user interface and update the display image based on the received annotation input. The processor can be configured to determine one or more acoustic parameters associated with the received acoustic signal and determine a criticality associated with the acoustic signal. A user can annotated the display image with determined criticality information or other determined information. | 2021-10-07 |
20210311189 | OBJECT DETECTING APPARATUS - An object detecting apparatus is configured to detect a surrounding object. The object detecting apparatus is provided with a driving signal generation unit provided to generate a driving signal that drives a transmitter unit including a transmitter emitting transmission waves externally; and a control unit provided to control an output of the driving signal transmitted to the transmitter unit from the driving signal generation unit. The driving signal generation unit is configured to generate the driving signal of which the frequency changes stepwise. | 2021-10-07 |
20210311190 | OBJECT DETECTION DEVICE - In an object detection device, a signal generation unit generates a drive signal, a transmission unit transmits an ultrasonic wave as a search wave in response to the input drive signal, and a reception unit receives an ultrasonic wave to generate a received signal. A judging unit performs object detection determination based on the received signal. The drive signal has at least two frequencies, and the judging unit extracts at least two amplitudes corresponding to the at least two frequencies from the received signal, and performs determination based on a relationship between the at least two amplitudes. | 2021-10-07 |
20210311191 | DISTANCE MEASUREMENT SENSOR AND DISTANCE MEASUREMENT METHOD - A scanning device includes a motor and a mirror attached to the motor and configured to reflect emitted light of a light source. The scanning device is configured to scan probe light, which is reflected light reflected by the mirror, according to the rotation of the motor. A photosensor detects return light, which is light reflected from a point on an object. A processor detects the distance to the point on the object based on the output of the photosensor. A distance measurement sensor changes the angular resolution according to the distance to the object. | 2021-10-07 |
20210311192 | CHARACTERIZING LINEARITY OF AN OPTICAL FREQUENCY CHIRP OUTPUT BY AN FMCW LASER - A system comprises an optical heterodyne device, the optical heterodyne device configured to generate an overlap signal based upon: 1) a first optical signal output by a frequency-modulated continuous-wave (FMCW) laser, wherein the first optical signal comprises an optical frequency chirp that is based upon an input voltage signal received by the FMCW laser; and 2) a second optical signal output by a reference laser. The system also includes a photodetector that is optically coupled to the optical heterodyne device, the photodetector configured to output an electrical beat signal based upon the mixing of the optical signals, wherein the electrical beat signal is representative of the mixed down optical signal. The system further includes a frequency analyzer system that generates, based upon the electrical beat signal, data that is indicative of linearity of the optical frequency chirp in the first optical signal. | 2021-10-07 |
20210311193 | LIDAR SENSOR FOR OPTICALLY DETECTING A FIELD OF VISION, WORKING DEVICE OR VEHICLE INCLUDING A LIDAR SENSOR, AND METHOD FOR OPTICALLY DETECTING A FIELD OF VISION - A LIDAR sensor for optically detecting a field of vision. The LIDAR sensor includes a transmitting unit including a laser pattern generation unit, the laser pattern generation unit being designed to generate an illumination pattern in the field of vision; a receiving unit including at least one detector unit for receiving secondary light which was reflected and/or scattered by an object in the field of vision; the at least one detector unit including a plurality of pixels, and at least some pixels in each case including a multitude of activatable single-photon avalanche diodes; at least one rotor unit rotatable about a rotation axis, the transmitting unit and the receiving unit being at least partially situated on rotor unit. The LIDAR sensor furthermore includes at least one linker, which is designed to link detection signals of at least two single-photon avalanche diodes of a pixel via a combinational logic. | 2021-10-07 |
20210311194 | HIGH RESOLUTION PROCESSING OF IMAGING DATA - Systems and methods described herein are directed to computationally fast and accurate processing of data acquired by a remote imaging system, such as a Light Detection and Ranging system (LIDAR). Example embodiments describe processing of scanned target data based on performing a low-resolution Fourier Transform (FT) of a beat signal that may be a function of distance and/or velocity of objects associated with the scanned target. Various methods described herein can effectively convert the low-resolution FT data into high-resolution frequency domain data that can be used to accurately estimate a frequency of the beat signal. The system may use the beat signal frequency to determine the distance and/or velocity of the corresponding object and generate point-cloud information associated with a three-dimensional image construction of the scanned target. | 2021-10-07 |
20210311195 | VISION-CUED RANDOM-ACCESS LIDAR SYSTEM AND METHOD FOR LOCALIZATION AND NAVIGATION - A vision-cued random-access LIDAR system and method which determines the location and/or navigation path of a moving platform. A vision system on a moving platform identifies a region of interest. The system classifies objects within the region of interest, and directs random-access LIDAR to ping one or more of the classified objects. The platform is located in three dimensions using data from the vision system and LIDAR. The steps of classifying, directing, and locating are preferably performed continuously while the platform is moving and/or the vision system's field-of-view (FOV) is changing. Objects are preferably classified using at least one smart-vision algorithm, such as a machine-learning algorithm. | 2021-10-07 |
20210311196 | System and Method for Fast Wind Flow Measurement by LiDAR in a Complex Terrain - A wind flow sensing system for determining wind flow at a set of different altitudes above a terrain is provided, The wind flow sensing system comprises an input interface configured to receive a set of measurements of radial velocities at line-of-site points above the terrain for each of the altitudes, and a processor configured to estimate velocity fields for each of the altitudes based on data assimilation of the velocity fields above an approximation of the shape of the terrain with a set of one or multiple convex shapes to fit the measurements of radial velocities and estimate horizontal velocities at each of the altitudes as a horizontal projection of the corresponding radial velocities corrected with corresponding horizontal derivatives of vertical velocities of the estimated velocity fields. The wind flow sensing system further comprises an output interface configured to render the estimated horizontal velocities at each of the altitudes. | 2021-10-07 |
20210311197 | SYSTEMS AND METHODS FOR DISTRIBUTED DENSE NETWORK PROCESSING OF SATELLITE POSITIONING DATA - A system for generating satellite positioning corrections includes a global correction module that generates a set of global pre-corrections based on modeling of global positioning error, a set of local correction modules that, for each local correction module of the set, takes input from a unique reference source and generates a set of local pre-corrections based on modeling of local positioning error; and a correction generator that generates a positioning correction from the set of global pre-corrections and the sets of local pre-corrections to correct a position of the mobile receiver. | 2021-10-07 |
20210311198 | INTERFEROMETRY-BASED SATELLITE LOCATION ACCURACY - According to one or more embodiments herein, interferometry-based satellite location accuracy is provided. In one embodiment, a method comprises: determining, generally at a substantially given time, a reference satellite having a known accurate location within angular proximity of a communication satellite having a known general location; determining an accurate angular position of the communication satellite with relation to the reference satellite from the perspective of at least one ground station antenna of a known accurate location; determining an additional location reference measurement of the communication satellite; determining an accurate location of the communication satellite at the substantially given time based at least in part on the accurate angular position of the communication satellite with relation to the reference satellite from the perspective of the at least one ground station antenna and the additional location reference measurement of the communication satellite; and utilizing the accurate location of the communication satellite. | 2021-10-07 |
20210311199 | SATELLITE ECHOING FOR GEOLOCATION AND MITIGATION OF GNSS DENIAL - Satellite echoing for geolocation and mitigation of Global Navigation Satellite System (GNSS) denial are provided herein, where an example method comprises: transmitting an initiated message to a communication satellite along a communication path that has a target device with an unknown distance to the communication satellite; receiving a returned message from the communication satellite over the communication path in response to the initiated message; determining a local time difference between the transmission time and the reception time; calculating a distance between the communication satellite and the target device, the distance calculated based on a portion of the determined time difference associated with only a single traversal of a portion of the communication path that is between the communication satellite and the target device; and performing one or more actions based on the distance between the communication satellite and the target device. | 2021-10-07 |
20210311200 | Interface Device and Method for Retrofitting an Airplane with GNSS Landing Capability - An interface device that enables a GNSS-based precision approach through the Ground Base Augmentation System (GBAS) function known as the GNSS Landing System (GLS) and/or through Satellite Based Augmentation Systems (SBAS) based Localizer Performance with Vertical Guidance (LPV). The GLS interface device allows a GLS-capable multi-mode receiver to be used on a non-GLS-capable airplane without extensive changes to other airplane systems. The GLS interface device works by intercepting information to and from the multi-mode receiver and modifying the information to make the interface compatible with an airplane that uses ILS guidance. Similarly, the information modifications will make the airplane appear to the multi-mode receiver as if it were a GLS-capable airplane. | 2021-10-07 |
20210311201 | MULTI-SYSTEM-BASED DETECTION AND MITIGATION OF GNSS SPOOFING - According to one or more of the embodiments herein, systems and techniques for multi-system-based detection and mitigation of Global Navigation Satellite System (GNSS) spoofing are provided. In one embodiment, a method comprises: obtaining a first location of an object from a primary location determination hardware system; obtaining a second location of the object from a secondary location determination hardware system; determining a distance difference between the first location and the second location; determining whether the distance difference between the first location and the second location is acceptable based on a threshold distance; and initiating one or more mitigation actions in response to the distance difference between the first location and the second location being unacceptable. | 2021-10-07 |
20210311202 | MULTI-SUBSET-BASED DETECTION AND MITIGATION OF GNSS SPOOFING - According to one or more of the embodiments herein, systems and techniques for multi-subset-based detection and mitigation of Global Navigation Satellite System (GNSS) spoofing are provided. In one embodiment, a method comprises: determining data associated with a distance between an object and each of a plurality of satellites to produce a corresponding plurality of datums; creating a plurality of different subsets of the datums; determining a plurality of possible computed solutions for the object based on the subsets of datums; determining, in response to the plurality of possible computed solutions falling within an acceptable proximity of each other, a trusted computed solution for the object based on the plurality of datums; and initiating, in response to at least one the plurality of possible computed solutions not falling within the acceptable proximity of each other of the plurality of possible computed solutions, one or more mitigation actions. | 2021-10-07 |
20210311203 | SATELLITE RELAYING FOR GEOLOCATION AND MITIGATION OF GNSS DENIAL - According to one or more of the embodiments herein, systems and techniques for satellite relaying for geolocation and mitigation of Global Navigation Satellite System (GNSS) denial are provided. In one embodiment, a method comprises: receiving, at a processing device from a communication satellite along a communication path, a message initiated by a transmitting device and indicating a transmission time, the communication path having a target device with an unknown distance to the communication satellite; determining a reception time upon receiving the message, (the processing device and the transmitting device have synchronized clocks); determining a time difference between the transmission time and the reception time; calculating a distance between the communication satellite and the target device based on a portion of the determined time difference associated with only traversal of a portion of the communication path between the communication satellite and the target device; and performing action(s) based on the distance. | 2021-10-07 |
20210311204 | TRACKING DEVICE - A tracking device comprising a location module arranged to determine a location of the tracking device; a communication gateway arranged to communicate the location of the tracking device to a receiver station; and a housing arranged to house the location module and the communication gateway, wherein the housing is further arranged to engage with an access mechanism such that when the access mechanism is actuated, the housing is manipulated. | 2021-10-07 |
20210311205 | Navigation Using Self-Describing Fiducials - In one embodiment, a navigation system may include at least one self-describing fiducial with a communication element to communicate navigation state estimation aiding information comprising a geographic position of the self-describing fiducial with respect to one or more coordinate systems and a first navigating object to receive navigation information from an exterior system, receive navigation state estimation aiding information from the self-describing fiducial, and compare the navigation information received from the exterior system to the navigation state estimation aiding information to improve navigation parameters of the first navigating object. | 2021-10-07 |
20210311206 | RTK Vector Phase Locked Loop Architecture - A navigation system for a mobile object generates navigation data for the mobile object based on satellite navigation signals received from a plurality of satellites and base data received from a stationary base station. The navigation data includes code phase estimates and carrier phase estimates for the plurality of satellites. The system computes position, velocity and time estimates for the mobile object in accordance with the code phase estimates and carrier phase estimates, and performs a navigation function for the mobile object in accordance with the position, velocity and time estimates. The system generates code phase estimates by performing a Vector Delay Locked Loop (VDLL) computation process that drives a code NCO for each channel of a plurality of channels, and generates carrier phase estimates for the plurality of satellites by performing a RTK Vector Phase Locked Loop computation process that drives a carrier NCO for each channel. | 2021-10-07 |
20210311207 | COMMUNICATION APPARATUS FOR SUBSEQUENT INSTALLATION IN A VEHICLE OR FOR MOBILE USE, AND ASSOCIATED METHOD - A communication apparatus for subsequent installation in a vehicle and/or for mobile use, having: a transceiver having an antenna for wireless data transmission, a GNSS receiver having an antenna for receiving signals from a global satellite navigation system, an inertial measurement unit, and a housing enclosing the transceiver, the GNSS receiver and the inertial measurement unit at least in part. The communication apparatus is configured to use data captured by the inertial measurement unit and/or the GNSS receiver to perform motion detection, in order to ascertain a motion pattern, and to perform or prevent a data transmission by the antenna for the purpose of wireless data transmission as a function of the ascertained motion pattern. Furthermore, the a method for execution using such a communication apparatus is disclosed. | 2021-10-07 |
20210311208 | SYSTEMS AND METHODS FOR UTILIZING A MACHINE LEARNING MODEL TO DETERMINE A DETERMINED LOCATION OF A VEHICLE BASED ON A COMBINATION OF A GEOGRAPHICAL LOCATION AND A VISUAL POSITIONING SYSTEM LOCATION - A device may receive, from a vehicle device, a geographical (e.g., GNSS) location of a vehicle, and may utilize the GNSS location as a determined location of the vehicle when the GNSS location satisfies a first threshold. The device may receive, from the vehicle device, an image identifying reference points associated with the vehicle, and may process the image, with a VPS, to calculate a VPS location of the vehicle. The device may utilize the GNSS location of the vehicle as the determined location when the VPS location fails to satisfy a second threshold, and may calculate, when the VPS location of the vehicle satisfies the second threshold, coordinate sets based on groups of coordinate combinations from the GNSS location and the VPS location. The device may process the coordinate sets, with a model, to determine the determined location, and may perform actions based on the determined location. | 2021-10-07 |
20210311209 | DRIVING EVALUATION APPARATUS - Driving-evaluation-apparatus evaluating driving-status of driver driving mobile-body, includes: microprocessor and memory. The microprocessor functions as: information-acquisition-unit acquiring location/travel-speed-information of mobile-body based on GPS-signals received by driver's mobile-terminal; entry-direction-calculation-unit calculating entry-direction in which mobile-body enters determination-area based on location/travel-speed-information; entry-direction-determination-unit determining whether angle formed by entry-direction and predetermined-reference-entry-direction is predetermined-angle or smaller; state-determination-unit determining whether there is stop/deceleration-state in which travel-speed is predetermined-travel-speed or lower within time-period from time-point when mobile-body enters determination-area to time-point when mobile-body exits determination-area based on location/travel-speed-information when angle is predetermined-angle or smaller; and driving-evaluation-unit evaluating driver's driving-status in determination-area based on determination-result. The determination-area is area inside determination-circle centered on reference-point predetermined-distance before the predetermined-location and having predetermined-radius. The angle is angle formed by: straight-line along the reference-entry-direction and passing through the reference-point; and straight-line connecting plot representing location of the mobile-body before entering inside the determination-circle based on location/travel-speed-information and the reference-point. | 2021-10-07 |
20210311210 | SCINTILLATOR SCREEN MANUFACTURING METHOD, SCINTILLATOR SCREEN AND CORRESPONDING IMAGE DETECTOR - Provided are a scintillator screen manufacturing method, a scintillator screen and an image detector. The manufacturing method comprises the following steps: making a crystal column scintillator layer ( | 2021-10-07 |
20210311211 | High Resolution Light Valve Detector for Detecting X-Ray - A detection system for an x-ray microscopy system utilizes high bandgap, direct conversion x-ray detection materials. The signal of the x-ray projection is recorded in a spatial light modulator such as a liquid crystal (LC) light valve. The light valve is then read-out by a polarized light optical microscope. This configuration will mitigate the loss of light in the optical system over the current scintillator-optical microscope-camera detection systems. | 2021-10-07 |
20210311212 | SCINTILLATING DETECTORS FOR QUALITY ASSURANCE OF A THERAPY PHOTON BEAM - The present disclosure relates to scintillating detector systems for radiation therapy beams. In one implementation, a detector system for evaluating radiation delivered by a radiation beam output from a beam generator may include a phantom enclosing an internal volume and having an outer surface, extending around the internal volume, for exposure to radiation, and an inner surface coated, at least in part, with a scintillating material and facing the internal volume. The system may further include a camera external to the enclosed volume and configured to view at least a portion of the inner surface, through an opening of the hollow phantom, when radiated by the radiation beam. The system may further include at least one processor configured to receive images from the camera and calculate, based on the received images, a spatial dose distribution produced by the radiation delivered by the radiation beam to the hollow phantom. | 2021-10-07 |
20210311213 | Method and System for Hybrid Positron Emission Tomography (PET) Imaging - A method and system for generating a hybrid positron emission tomography (PET) scanner are disclosed herein. An imaging system receives, from the hybrid PET scanner, a first set of image data of an object corresponding to high-resolution, low-sensitivity image data. The imaging system receives, from the hybrid PET scanner, a second set of image data of the object corresponding to low-resolution, high-sensitivity image data. The imaging system converts the second set of image data from low-resolution, high-sensitivity image data to high-resolution, high-sensitivity image data. The imaging system combines the high-resolution, high-sensitivity image data with the high-resolution, low-sensitivity image data. The imaging system generates an image of an object based on the combined high-resolution, high-sensitivity image data and the high-resolution, low-sensitivity image data, or high-resolution, high-sensitivity image data only. | 2021-10-07 |
20210311214 | METHOD FOR DETECTING AND QUANTIFYING FRACTURE INTERACTION IN HYDRAULIC FRACTURING - Using microseismic analysis to identify and quantify the hydraulic fracture interaction in the Earth formation. Identification of the interaction is based on the magnitude of the events and therefore independent of the location uncertainty. Quantification of the interaction is location based. | 2021-10-07 |
20210311215 | HIGH RESOLUTION FULL WAVEFORM INVERSION - Disclosed are methods, systems, and computer-readable medium to perform operations including: generating, using a source wavelet and a current velocity model, modeled seismic data of the subterranean formation; applying a pre-condition to a seismic data residual calculated using the modeled seismic data and acquired seismic data from the subterranean formation; generating a velocity update using the source wavelet and the pre-conditioned seismic data residual; updating, using the velocity update, the current velocity model to generate an updated velocity model; determining that the current velocity model satisfies a predetermined condition; and responsively determining that the updated velocity model is the velocity model of the subterranean formation. | 2021-10-07 |
20210311216 | THREE-COMPONENT SEISMIC DATA PROCESSING AND INTERPRETATION METHOD FOR SEISMIC WHILE FRACKING - Systems and methods include a computer-implemented method for presenting interpretation results of synchronized seismic data and fracture treatment times. A standard format seismic dataset of sensor readings obtained from a three-component sensor is generated. Coordinates and recording times corresponding to the sensor readings are added to the standard format seismic dataset. Synchronized seismic data is generated from the standard format seismic dataset by synchronizing seismic recording times with fracture treatment times. Quality-controlled synchronized seismic data is generated by removing dead traces and abnormal data samples from the synchronized seismic data. A time-frequency analysis is performed on the quality-controlled synchronized seismic data, including performing short-time Fourier transforms to analyze variations of Fourier spectra over time. Based on the time-frequency analysis, resonance frequencies are extracted from each frequency spectrum at different time samples. Interpretation results based are presented to a user. | 2021-10-07 |
20210311217 | SYSTEMS AND METHODS FOR EVALUATING A SIMULATION MODEL OF A HYDROCARBON FIELD - Systems and methods for evaluating simulation models are disclosed. In one embodiment, a method of evaluating a simulation model of a hydrocarbon field includes merging simulated reservoir data and actual reservoir data to generate merged reservoir data, and cross-linking the merged reservoir data with three-dimensional model data. The method further includes calculating one or more surface metrics from at least one of the merged reservoir data and the three-dimensional model data, calculating one or more subsurface metrics from at least one of the merged reservoir data and the three-dimensional model data, and calculating one or more overall history match indicators, one or more surface history match indicators, and one or more subsurface history match indicators from the one or more surface metrics, the one or more subsurface metrics, and the three-dimensional model data. | 2021-10-07 |
20210311218 | SURFACE WAVE PREDICTION AND REMOVAL FROM SEISMIC DATA - The present method predicts and separates dispersive surface waves from seismic data using dispersion estimation and is completely data-driven and computer automated and no human intervention is needed. The method is capable of predicting and suppressing surface waves from recorded seismic data without damaging the reflections. Nonlinear signal comparison (NLSC) is used to obtain a high resolution and accurate dispersion. Based on the dispersion, surface waves are predicted from the field recorded seismic data. The predicted surface waves are then subtracted from the original data. | 2021-10-07 |
20210311219 | USE NUOS TECHNOLOGY TO ACQUIRE OPTIMIZED 2D DATA - A method for 2D seismic data acquisition includes determining source-point seismic survey positions for a combined deep profile seismic data acquisition with a shallow profile seismic data acquisition wherein the source-point positions are based on non-uniform optimal sampling. A seismic data set is acquired with a first set of air-guns optimized for a deep-data seismic profile and the data set is acquired with a second set of air-guns optimized for a shallow-data seismic profile. The data are de-blended to obtain a deep 2D seismic dataset and a shallow 2D seismic dataset. | 2021-10-07 |
20210311220 | SEISMIC DATA ACQUISITION USING DESIGNED NON-UNIFORM RECEIVER SPACING - The presently disclosed technology relates to an arrangement for seismic acquisition where the spacing between adjacent pairs of receiver and sources lines is not all the same. Some receiver and/or source lines and/or receiver and/or source spacings are larger and some are smaller to provide a higher quality wavefield reconstruction when covering a larger total area or for a similar total area of seismic data acquisition, while providing a wavefield that is optimally sampled by the receivers and sources so that the wavefield reconstruction is suitable for subsurface imaging needs. | 2021-10-07 |
20210311221 | DATA-DRIVEN DOMAIN CONVERSION USING MACHINE LEARNING TECHNIQUES - Optimizing seismic to depth conversion to enhance subsurface operations including measuring seismic data in a subsurface formation, dividing the subsurface formation into a training area and a study area, dividing the seismic data into training seismic data and study seismic data, wherein the training seismic data corresponds to the training area, and wherein the study seismic data corresponds to the study area, calculating target depth data corresponding to the training area, training a machine learning model using training inputs and training targets, wherein the training inputs comprise the training seismic data, and wherein the training targets comprise the target depth data, computing, by the machine learning model, output depth data corresponding to the study area based at least in part on the study seismic data; and modifying one or more subsurface operations corresponding to the study area based at least in part on the output depth data. | 2021-10-07 |
20210311222 | Extracting Shear Wave Slowness From Hexapole Waves And Octupole Waves - Disclosed is a system and method for calculating a formation shear-wave slowness. The system includes a borehole sonic logging tool and an information handling system. The borehole sonic logging tool may comprise a transmitter comprising one or more elements disposed at one or more radial distances from an axis of the borehole sonic logging tool and the transmitter is configured to transmit a first mode into a borehole. The sonic logging tool may further include one or more receivers disposed at a second radial distance from the axis of the borehole sonic logging tool and are configured to detect a second mode that one or more lobes than is a higher order than the first mode. A method may comprise broadcasting the first mode into the borehole, recording the second mode from the borehole with the one or more receivers, and calculating the formation shear-wave slowness from the second mode. | 2021-10-07 |
20210311223 | SYSTEM AND METHOD FOR SEISMIC INVERSION - A method is described for inverting seismic data including obtaining well logs representative of subsurface volumes of interest; generating an amplitude variation with angle (AVA) database from the well logs by seismic modeling, wherein the seismic modeling is performed a plurality of times for all combinations of fluid substitutions of brine, oil, and gas and low porosity, mid-porosity, and high porosity; generating a trained AVA model using the AVA database; obtaining a seismic dataset; calibrating the seismic dataset; computing seismic attributes for the calibrated seismic dataset using statistics for AVA classification; and generating direct hydrocarbon indicators as a function of position in the subsurface volume of interest by applying the trained AVA model to the seismic attributes. The method is executed by a computer system. | 2021-10-07 |
20210311224 | Circular Downhole Ultrasonic Phased Array - A downhole tool having an acoustic transducer for downhole measurements. A backing is in contact with an inner surface of the transducer. A first structure is coupled to a first housing. A second structure is coupled to a second housing. A member includes first, second, and third portions. The first portion is coupled to the first structure. The second portion is coupled to the second structure. At least one of the first and second structures is coupled to the member and has a degree of freedom relative to the member. The third portion extends longitudinally through the backing between the first and second portions such that compressional forces on the first and second housings are transferred through the first and second structures and the backing. A canister contacts an outer surface of the transducer and exerts radial forces on the transducer when exposed to pressures higher than atmospheric pressure. | 2021-10-07 |
20210311225 | OPTICAL SYSTEM AND OPTICAL COMPENSATION METHOD - An optical system that obtains characteristics of a transmission path in atmosphere, when laser light propagates through this transmission path, at a place separated from this transmission path and before the propagation, and corrects wavefront of the laser light based on the obtained characteristics, is provided. The optical system is provided with an irradiation device and an atmospheric characteristics obtaining system. The irradiation device irradiates an external target with light via a first optical path. The atmospheric characteristics obtaining system is arranged in a second optical path separated from the first optical path and obtains characteristics of atmospheric environment in the first optical path with respect to the irradiated light. The irradiation device is provided with wavefront correction optics. The wavefront correction optics correct wavefront of the irradiated light based on the obtained characteristics. | 2021-10-07 |
20210311226 | ZERO-INDEX PHOTONIC CRYSTALS FOR VISIBLE AND NEAR INFRARED APPLICATIONS - A two dimensional (2D) photonic crystal (PhC) structure includes a substrate and a periodic grating structure formed on the substrate. The periodic grating structure includes a plurality of gratings having a grating period, a. Each pair of adjacent gratings is separated by air. Each grating has a grating width, d, and includes a plurality of alternating layers of a first material and a second material. The first material corresponds to a high index material. The second material corresponds to a low index material. A ratio of a first refractive index of the first material to a second refractive index of the second material is greater than or equal to two. Each first material layer has a first thickness, t | 2021-10-07 |
20210311227 | COATING MATERIAL - A coating material ( | 2021-10-07 |
20210311228 | OPTICAL BRIGHTENING STRUCTURE, PREPARATION METHOD THEREFOR, AND ELECTRONIC DEVICE - An optical brightness enhancement structure and a manufacturing method thereof and an electronic device are provided. The method for manufacturing an optical brightness enhancement structure includes: providing a light-transmissive carrier, and forming a buffer layer on a first surface of the light-transmissive carrier; forming a plurality of microstructures for converging light on a surface of the buffer layer away from the light-transmissive carrier; and surface energy of each of the microstructures is greater than surface energy of the buffer layer. | 2021-10-07 |
20210311229 | PLASMA ETCHING METHOD USING FARADAY CAGE - A plasma etching method using a Faraday cage, which effectively produces a blazed grating pattern. | 2021-10-07 |
20210311230 | SINGLE-SENSOR HYPERSPECTRAL IMAGING DEVICE - The present disclosure generally relates to hyperspectral spectroscopy, and in particular, to systems, methods and devices enabling a single-sensor hyperspectral imaging device. Hyperspectral (also known as “multispectral”) spectroscopy is an imaging technique that integrates multiples images of an object resolved at different narrow spectral bands (i.e., narrow ranges of wavelengths) into a single data structure, referred to as a three-dimensional hyperspectral data cube. Data provided by hyperspectral spectroscopy allow for the identification of individual components of a complex composition through the recognition of spectral signatures of individual components within the three-dimensional hyperspectral data cube. | 2021-10-07 |
20210311231 | Optical Sensor and Electronic Apparatus - The subject of the present disclosure is to enhance spectral characteristics. | 2021-10-07 |
20210311232 | OPTICAL FILTER AND DISPLAY DEVICE INCLUDING THE SAME - An optical filter includes a substrate including a plurality of pixel areas spaced apart from each other and a light-blocking area between the plurality of pixel areas, a plurality of color filters arranged on a first surface of the substrate and corresponding to the plurality of pixel areas, and a plurality of conversion layers arranged on the first surface of the substrate and corresponding to the plurality of color filters. Each of the conversion layers includes inclined side surfaces. The optical filter further includes a reflective layer on the inclined side surfaces of each of the plurality of conversion layers. The reflective layer extends to the light-blocking area and is arranged consecutively on two adjacent inclined side surfaces from among the inclined side surfaces of the plurality of conversion layers and the light-blocking area between the two adjacent inclined side surfaces. | 2021-10-07 |
20210311233 | LIGHTING DEVICES FOR AUTOMATICALLY SWITCHING BETWEEN A VISIBLE LIGHT SOURCE AND AN INFRARED LIGHT SOURCE - The present disclosure relates to a lighting device for automatically switching between a visible light source and an infrared light source. The lighting device may include a light source, an infrared filter, and a driving module for driving the infrared filter. | 2021-10-07 |
20210311234 | SYSTEM FOR OPTICAL IMAGING COMPRISING MATCHED SPECTRAL FILTERS - Systems, methods and devices are for optical imaging are described. A system includes a light source and a light detection unit. The light source includes a light-emitting device and a first spectral filter opposite the light emitting device. The first spectral filter includes at least one dielectric filter and has a first angular dependence of a transmission passband. The light source further includes at least one reflector adjacent side surfaces of the light emitting device. The light detection unit includes an optical sensor and a second spectral filter opposite the optical sensor. The second spatial filter has a second angular dependence of a transmission passband that is matched to the first angular dependence. | 2021-10-07 |
20210311235 | ARTICLE INCLUDING A STACK OF ALTERNATING LAYERS - An article including a stack of layers of low refractive index layers and high refractive index layers, wherein the stack includes at least one low refractive index layer and at least two high refractive index layers; wherein at least one layer of the stack includes a composition comprising a carrier and at least one nanoparticle chosen from organic nanoparticles and inorganic nanoparticles is disclosed. Additionally, there is disclosed a method of making the article. | 2021-10-07 |
20210311236 | OPTICAL FILTER, OPTICAL ELEMENT AND IMAGING APPARATUS - The disclosed optical filter is provided on a substrate. The optical filter includes a first layer, an absorption layer, and a second layer in order from a substrate side. The condition of |R1−R2|≥10 is satisfied where R1 [%] represents a reflectance of the optical filter for light whose wavelength is 550 nm and that makes incident on the optical filter from a side opposite to the substrate, and R2 [%] represents a reflectance of the optical filter for light whose wavelength is 550 nm and that makes incident on the optical filter from the substrate side. | 2021-10-07 |
20210311237 | ARTICLE INCLUDING TWO EXTERNAL LAYERS OF ABSORBING NANOPARTICLES - An article including two external layers of absorbing nanoparticles; and at least one refractive index layer chosen from a high refractive index layer and a low refractive index layer, in which the at least one refractive index layer is between the two external layers of absorbing nanoparticles is disclosed. Additionally, there is disclosed a method of making the article. | 2021-10-07 |
20210311238 | DISPLAY DEVICE - A display device includes a display panel, a polarizing plate disposed above the display panel, where the polarizing plate includes a linear polarizing layer and a retardation layer, a window member disposed above the polarizing plate, where the window includes a window and a protective layer disposed above the window, the protective layer has a retardation of about 100 nm or less or about 5000 nm or greater, an optical member disposed below the display panel, a support member disposed below the optical member, where a through-hole is defined through the support member, and an electronic module disposed to correspond to the through-hole. | 2021-10-07 |
20210311239 | METHOD FOR MANUFACTURING VIEWING ANGLE COMPENSATION FILM, METHOD FOR MANUFACTURING POLARIZING PLATE, VIEWING ANGLE COMPENSATION FILM, POLARIZING PLATE, AND DISPLAY DEVICE INCLUDING SAME - Provided is a method of manufacturing a viewing angle compensation film, comprising the steps of preparing a base and forming a pattern layer on the base, wherein the pattern layer comprises a first surface comprising a flat surface and a second surface opposite to the first surface; the second surface comprises multiple protruding portions, each of the protruding portions includes a first inclined surface and a second inclined surface, and the angle θ formed by the first inclined surface and the second inclined surface is 20° to 60°. Also provided are a method of manufacturing a polarizing plate by using a viewing angle compensation film manufactured by the manufacturing method, a viewing angle compensation film, a polarizing plate, and a display device including same. | 2021-10-07 |