39th week of 2021 patent applcation highlights part 44 |
Patent application number | Title | Published |
20210302523 | MAGNETIC RESONANCE TOMOGRAPHY UNIT AND SYSTEM AND METHOD FOR PREVENTING DISTURBANCES - The disclosure relates to a magnetic resonance tomography unit with a control unit for controlling an image acquisition. The control unit has an interface for a signal-carrying connection to a disturbance source. The control unit is configured to synchronize an image acquisition by an information exchange with the disturbance source. | 2021-09-30 |
20210302524 | METHOD FOR PROVIDING A PROCESS PLAN OF A MAGNETIC RESONANCE EXAMINATION - The disclosure relates to techniques for providing a process plan of a magnetic resonance examination, said process plan incorporating n protocols where n≥1, comprising selecting an examination strategy comprising a number n of metaprotocols and a chronological order of the n metaprotocols, wherein each of the n metaprotocols comprises a protocol category comprising a plurality of different variants of a protocol of the one protocol category. The process plan further includes selecting a variant of a protocol of the one protocol category of an ith metaprotocol, where 1≤i≤n, repeating the step of selecting the variant of a protocol of the one protocol category of an ith metaprotocol until i=n, and providing the magnetic resonance examination process plan comprising the n protocols. | 2021-09-30 |
20210302525 | SYSTEMS AND METHODS OF REDUCING NOISE AND ARTIFACTS IN MAGNETIC RESONANCE IMAGING - A computer-implemented method of reducing noise and artifacts in medical images is provided. The method includes receiving a series of medical images along a first dimension, wherein the signals in the medical images having a higher correlation in the first dimension than the noise and the artifacts in the medical images. The method further includes, for each of a plurality of pixels in the medical images, deriving a series of data points along the first dimension based on the series of medical images, inputting the series of data points into a neural network model, and outputting the component of signals in the series of data points. The neural network model is configured to separate a component of signals from a component of noise and artifacts in the series of data points. The method further includes generating a series of corrected medical images based on the outputted component of signals. | 2021-09-30 |
20210302526 | METHOD OF CALIBRATING A SETUP - A method of calibrating a setup comprises: performing at least one calibration of the setup, thereby obtaining calibration data; setting a quantity representing forward tracking to be equal with a quantity representing reverse tracking; solving a system of equations having at least an unknown quantity representing the forward tracking or the reverse tracking, thereby obtaining at least one equation having the unknown quantity squared; creating based on the calibration data obtained two phase over frequency relationships for the respective quantity; determining two lines having a linear change in phase over frequency for the phase over frequency relationships created; extrapolating the lines determined to a frequency of 0 Hz; and determining the respective quantity by selecting one line of the lines extrapolated that is closer to a phase of zero, 2π or a multiple thereof at the frequency of 0 Hz. | 2021-09-30 |
20210302527 | System And Methods For A Private eLoran Service - A method for generating private eLoran signals includes receiving, by a transmitter that is configured to transmit a transmission at a fixed time, a transmission key; determining, by the transmitter, a pseudo-random transmission time for transmitting the transmission, where the pseudo-random transmission time is determined using the transmission key; and initiating transmission, by the transmitter, of the transmission at the pseudo-random transmission time. A receiving device includes a processor that is configured to obtain a pseudo-random time for receiving a transmission from a transmitter; receive the transmission at the pseudo-random time; and use the transmission to determine at least one of a time, a longitude, or a latitude at the receiving device. | 2021-09-30 |
20210302528 | SYSTEM AND METHOD FOR ESTIMATING THE ANGLE OF ARRIVAL USING ANTENNA ARRAYS - Approaches are described for antenna configuration in an antenna array of limited array size and channel state information (CSI) collection and analysis, to improve accuracy of angle of arrival (AoA) estimations for localizing a client device's position. Signals can be received from groups of antennas and CSI data can be generated from the signals. The CSI data can be combined, where the combined CSI data represents CSI data measurements of multiple signals received from a plurality of antenna subsets, without requiring physical installation of additional antennas to the limited antenna array to make the CSI data measurements. The angle of arrival (AoA) of the signals is estimated based on the combined CSI, and the AoA estimation can be used to determine the client device's location, and for other location services, such as identifying a person's location, tracking and managing inventory of objects, commute prediction, and the like. | 2021-09-30 |
20210302529 | Determining Imperfections in an Imaging Camera for Determining the Orientation of Objects in Space - A method and system determines object orientation using a light source to create a shadow line extending from the light source. A camera captures an image including the shadow line on an object surface. An orientation module determines the surface orientation from the shadow line. In some examples a transparency imperfection in a window through which a camera receives light can be detected and a message sent to a user as to the presence of a light-blocking or light-distorting substance or particle. A system can control illumination while imaging an object in space using a light source mounted to a support structure so a camera captures an image of the illuminated object. Direct illumination of the camera by light from the light source can be prevented such as by blocking the light or using a light-transmissive window adjacent the camera to reject light transmitted directly from the light source. | 2021-09-30 |
20210302530 | METHOD FOR LOCATING SIGNAL SOURCES IN WIRELESS NETWORKS - A method of estimating the position of a wireless transmitter comprising: collecting a plurality of wireless measurements between a transmitter and a receiver; drawing a buffer circle around each measurement, having a radius defined by the timing advance delay measurements; plotting a plurality of buffer circles and identifying intersection points for adjacent measurements only; estimating the position based on the intersection of delay measurements from said plurality of wireless measurements. | 2021-09-30 |
20210302531 | SYSTEMS AND METHODS FOR DETERMINING POSITION AND DISTANCE OF A TERMINAL - Systems and methods for determining a time difference are provided in the present disclosure. The systems includes a first base station configured to receive a first signal transmitted from a terminal and receive a second signal from a second base station. The systems may also include the second base station configured to receive the first signal transmitted from the terminal, and transmit the second signal after receiving the first signal. The systems may further include at least one processor configured to determine a time duration between the first base station receiving the first signal and receiving the second signal and determine the time difference between a first time period of the first signal transmitted from the terminal to the first base station and a second time period of the first signal transmitted from the terminal to the second base station based on a third time period and the time duration. | 2021-09-30 |
20210302532 | ELECTRICAL CIRCUIT, PULSE RADAR DEVICE, METHOD FOR PROVIDING AN OUTPUT SIGNAL, AND RADAR METHOD - An electrical circuit for providing an output signal based on a first input signal and a second input signal has: a mixer which is configured to receive and mix the first and second input signals in order to generate a mixer output signal and to switch on or off based on the first input signal, wherein a DC signal component of the mixer output signal depends on whether the mixer is switched on or off; and a downstream circuit which is configured to switch on or off based on the DC signal component of the mixer output signal and to provide the output signal based on the mixer output signal. | 2021-09-30 |
20210302533 | DETERRENT FOR UNMANNED AERIAL SYSTEMS - A system for providing integrated detection and deterrence against an unmanned vehicle including but not limited to aerial technology unmanned systems using a detection element, a tracking element, an identification element and an interdiction or deterrent element. Elements contain sensors that observe real time quantifiable data regarding the object of interest to create an assessment of risk or threat to a protected area of interest. This assessment may be based e.g., on data mining of internal and external data sources. The deterrent element selects from a variable menu of possible deterrent actions. Though designed for autonomous action, a Human in the Loop may override the automated system solutions. | 2021-09-30 |
20210302534 | ERROR ESTIMATION FOR A VEHICLE ENVIRONMENT DETECTION SYSTEM - A vehicle environment detection system ( | 2021-09-30 |
20210302535 | Chirp linearity detector for radar - A chirp linearity detector, integrated circuit, and method are provided. The chirp linearity detector comprises a phase-locked loop (PLL) frequency sampling circuit and a frequency sweep linearity measuring circuit. The PLL frequency sampling circuit comprises a frequency divider circuit for receiving a PLL output signal from a PLL and for providing a frequency divided output signal, a first low pass filter circuit for receiving the frequency divided output signal, for reducing harmonic mixing, and for providing a mixer input signal, a mixer circuit for receiving the mixer input signal, for mixing the mixer input signal with a local oscillator signal, and for providing a mixer output signal, a second low pass filter circuit for performing anti-aliasing filtering and for providing an analog-to-digital converter (ADC) input signal, and an ADC circuit for digitizing the ADC input signal and for providing a digital output signal. | 2021-09-30 |
20210302536 | Key FOB Localization Inside Vehicle - A system for localizing an ultra-wide band (UWB) apparatus comprises a UWB transceiver that identifies and extracts features of at least one channel impulse response (CIR); and a special-purpose processor that applies a machine learning classification process to the extracted CIR features to localize the UWB apparatus in a vehicle. | 2021-09-30 |
20210302537 | METHODS AND APPARATUS FOR IDENTIFYING AND PREVENTING TRACKING OF FALSE PRIMARY TARGET REPORTS - A tracking method and system includes receiving a primary radar report after establishment of a real track of the aircraft, determining a false track slant range associated with the aircraft based on an effective altitude of the aircraft above a ground or water surface and an aircraft slant range defined between the radar arranged on the ground surface and the aircraft, determining a capture area based on the false track slant range and an azimuth of the aircraft, and determining whether the primary radar report is a false report by comparing a position of the aircraft determined from the primary radar report to the capture area. | 2021-09-30 |
20210302538 | METHOD AND APPARATUS FOR DETECTING OBJECT BASED ON RADAR SIGNAL - An object detection method and apparatus are provided, the object detection method includes receiving a radar reception signal reflected by an object using a radar apparatus, generating a data set for one or more reflection points of the object by processing the radar reception signal, and detecting the object corresponding to the reflection points based on the data set using a neural network-based object detection model. | 2021-09-30 |
20210302539 | INJECTION LOCKED ON-CHIP LASER TO EXTERNAL ON-CHIP RESONATOR - Various technologies described herein pertain to injection locking on-chip laser(s) and external on-chip resonator(s). A system includes a first integrated circuit chip and a second integrated circuit chip. The first integrated circuit chip and the second integrated circuit chip are separate integrated circuit chips and can be optically coupled to each other. The first integrated circuit chip includes a laser configured to emit light via a first path and a second path. The second integrated circuit chip includes a resonator formed of an electrooptic material. The resonator can receive the light emitted by the laser of the first integrated circuit chip via the first path and return feedback light to the laser of the first integrated circuit chip via the first path. The feedback light can cause injection locking of the laser to the resonator to control the light emitted by the laser (e.g., via the first and second paths). | 2021-09-30 |
20210302540 | LIGHT-EMITTING DEVICE, OPTICAL DEVICE, MEASUREMENT DEVICE, AND INFORMATION PROCESSING APPARATUS - A light-emitting device includes plural driving units; plural laser element arrays connected to the respective plural driving units; and a connection wire that interconnects terminals of the plural laser element arrays, the terminals being connected to the plural driving units. | 2021-09-30 |
20210302541 | MODULAR SENSOR ASSEMBLY FOR VEHICLES - In one embodiment, a modular sensor assembly configured for mounting on a vehicle includes a first set of sensors and a second set of sensors. The modular sensor assembly includes a coordinate frame baseplate including a continuous surface, and sensor mounting elements coupled to the continuous surface for mounting the first set of sensors at a first height. The coordinate frame baseplate includes a sensor platform configured for mounting the second set of sensors at a second height. The first set of sensors and the second set of sensors are coupled to the coordinate frame baseplate so as to impart a common coordinate frame for the first set of sensors mounted at the first height and the second set of sensors mounted at the second height. The modular sensor assembly includes a bridging support structure coupled to the coordinate frame baseplate and capable of being mounted on a vehicle. | 2021-09-30 |
20210302542 | NON-UNIFORM LIDAR BEAM CONFIGURATION FOR OBJECT DETECTION, TRACKING AND CLASSIFICATION - An apparatus has a collection of emitters on an emitter substrate with irregular distances between the collection of emitters to produce optical beams in a far field with a more even distribution than conventional optical beams in the far field produced by a conventional collection of emitters with regular distances between the conventional collection of emitters. A collection of receivers on a receiver substrate has irregular distances between the collection of receivers. A system substrate hosts the emitter substrate and the receiver substrate. | 2021-09-30 |
20210302543 | SCANNING LIDAR SYSTEMS WITH FLOOD ILLUMINATION FOR NEAR-FIELD DETECTION - A LiDAR sensor includes a first lens, a first laser source configured to emit a plurality of first light pulses to be collimated by the first lens, a flood illumination source configured to emit a plurality of second light pulses as diverging light rays, a second lens configured to receive and focus (i) a portion of any one of the plurality of first light pulses and (ii) a portion of any one of the plurality of second light pulses that are reflected off of the one or more objects, a detector configured to detect (i) the portion of any one of the plurality of first light pulses and (ii) the portion of any one of the plurality of second light pulses, and a processor configured to construct a three-dimensional image of the one or more objects based on the detected portions of first light pulses and second light pulses. | 2021-09-30 |
20210302544 | ACQUISITION OF DISTANCE MEASUREMENT DATA - An optoelectronic sensor ( | 2021-09-30 |
20210302545 | ADAPTIVE METHOD AND MECHANISMS FOR FAST LIDAR AND POSITIONING APPLICATIONS - A system to develop a light detection and range determination (LIDAR) application by a rotation of optical elements embedded on a rotating disk in a spherical geometry is provided. The system further enables to conduct a fastest possible spatial scanning mechanically and to determine flight times of light beams by adaptive elements according to a distance and a size of a target region. | 2021-09-30 |
20210302546 | Laser Radar - A laser radar includes a light source, a scanning mirror, a detector, and a reflector group. The scanning mirror includes an emitting reflective surface and a receiving reflective surface. The reflector group includes a first reflector and a second reflector. An included angle between the first reflector and the second reflector is a first included angle, an included angle between an incident laser beam of the emitting reflective surface and an emergent laser beam of the receiving reflective surface is a second included angle, and the second included angle is twice the first included angle. The emitting reflective surface is configured to reflect the laser beam emitted by the light source. The receiving reflective surface is configured to reflect, to the detector, the laser beam reflected back by an object. The reflect group is configured to change a propagation direction of the laser beam. | 2021-09-30 |
20210302547 | DISTANCE-MEASURING IMAGING DEVICE - A distance-measuring imaging device includes: a timing controller that outputs one or more timing signals; a light receiver that receives reflected light that is light emitted by a light source and reflected by a subject; a phase adjustment circuit that outputs at least one signal out of a light emission control signal and an exposure control signal, based on the one or more timing signals, the light emission control signal being used for causing the light source to emit light to the subject, the exposure control signal being used for causing the light receiver to start exposure. The phase adjustment circuit includes one or more DLL circuits each of which determines, for at least one of the one or more timing signals, at least one of a phase of a rising edge or a phase of a falling edge of the at least one signal. | 2021-09-30 |
20210302548 | METHOD AND APPARATUS FOR DETERMINING MEASUREMENT INFORMATION AND LIDAR DEVICE - A method for determining measurement information based on a multitude of measurement values from a measurement value range includes: obtaining a frequency distribution of a plurality of measurement values; dividing the frequency distribution into several regions, wherein one of the regions each represents an interval of the measurement value range and includes one or several classes of the frequency distribution; selecting one class each of a respective region as a selected class of the respective region based on a selection rule, wherein one region feature each is allocated to the regions based on the selection rule, determining a probability value for one of the selected classes based on the region features, wherein the probability value represents an estimation for the probability with which the selected class represents a value of a useful signal, wherein determining the probability value is based on methods of machine learning. | 2021-09-30 |
20210302549 | HIGH-SPEED LIGHT SENSING APPARATUS - An apparatus including a semiconductor substrate; an absorption layer coupled to the semiconductor substrate, the absorption layer including a photodiode region configured to absorb photons and to generate photo-carriers from the absorbed photons; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, where the second control signal is different from the first control signal. | 2021-09-30 |
20210302550 | TIME TO DIGITAL CONVERTER - In an embodiment, a method includes: receiving a first plurality of digital codes from a TDC; generating a coarse histogram from the first plurality of digital codes; detecting a peak coarse bin from the plurality of coarse bins; after receiving the first plurality of digital codes, receiving a second plurality of digital codes from the TDC; and generating a fine histogram from the second plurality of digital codes based on the detected peak coarse bin, where a fine histogram depth range is narrower than a coarse histogram depth range, where a lower fine histogram depth is lower or equal to a lower coarse peak depth, and where a higher fine histogram depth is higher or equal to a higher coarse peak depth. | 2021-09-30 |
20210302551 | LIGHT DETECTOR AND DISTANCE MEASURING DEVICE - A light detector according to an embodiment includes a light receiver and a controller. The controller is configured to set first and second light-receiving regions. The first light-receiving region includes first and second pixel regions. The second light-receiving region includes a third pixel region. An area of the third pixel region is larger than a total area of the first and second pixel regions. The light receiver is configured to, when light is applied: cause each of the first and second pixel regions within the first light-receiving region to individually output a signal; and cause the third pixel region within the second light-receiving region to output signals collectively. | 2021-09-30 |
20210302552 | TIME MEASUREMENT DEVICE AND TIME MEASUREMENT UNIT - An object of the present invention is to provide a time measurement device that facilitates a circuit layout. | 2021-09-30 |
20210302553 | LIDAR SYSTEMS WITH IMPROVED TIME-TO-DIGITAL CONVERSION CIRCUITRY - A light detection and ranging (LIDAR) system may include a laser and a plurality of single photon avalanche diodes (SPADs) that are triggered by laser light that reflects off a target scene. The LIDAR system may be operated in a global shutter mode, so each of the SPADs may include its own time-to-digital conversion circuitry. To reduce the area required to implement the circuitry for each diode, the circuitry may be operated using cyclic histogramming, in which a first bit of a time-of-flight value may be determined using a first time period that corresponds to the emission of the laser light and the detection by the SPADs, a second bit of the time-of-flight value may be determined using a second time period that is half of the first time period, etc. In this way, the circuitry may accurately determine the signal peak while requiring less area and memory requirements. | 2021-09-30 |
20210302554 | SYSTEM AND METHOD FOR LIDAR DEFOGGING - A system and method for LiDAR defogging is disclosed. The method comprises: applying a detection device to determine the fog status and generate a histogram; determining the fog concentration between a target location and the detection device in the histogram according to the histogram; and applying a defogging method to defog the fog concentration between the target location and the detecting device. | 2021-09-30 |
20210302555 | LIDAR POLARIMETRY - The present disclosure provides a system and method for determining a range to an object in a fluid. The system includes a polarized light source directed to the object in the fluid, a first imaging sensor, a second imaging sensor, and at least one processor. The at least one processor characterizes a depolarization rate of the fluid and determines the range to the object. The method includes generating polarized light via a polarized light source, polarizing an imager relative to the polarized light, transmitting the polarized light from the polarized light source into the fluid, receiving reflected light from the object, characterizing a depolarization rate of the fluid, based, at least in part, on the reflected light, and determining the range to the object, based, at least in part, on the depolarization rate of the fluid. | 2021-09-30 |
20210302556 | METHOD FOR DETERMINING CHANGE IN DISTANCE, LOCATION PROMPTING METHOD AND APPARATUS AND SYSTEM THEREOF - A method for determining a change in a distance, a location prompting method and an apparatus and a system thereof are provided. The method includes: sending, by a receiving terminal, a paring request to a server for the server to forward the paring request to a transmitting terminal, and to allocate a frequency band for the receiving terminal and the transmitting terminal after the transmitting terminal accepts the paring request; acquiring, by the receiving terminal, an acoustic wave signal of a frequency sent by the transmitting terminal, wherein the frequency is determined by the transmitting terminal based on the allocated frequency band; determining, by the receiving terminal, a change in the acquired acoustic wave signal; and determining, by the receiving terminal, a change in a distance between the transmitting terminal and the receiving terminal according to the change in the acquired acoustic wave signal. | 2021-09-30 |
20210302557 | BI-STATIC RADAR SYSTEM - A bi-static radar system configured for coherent detection of a radar-signal includes a plurality of radar-transceivers, a controller, and a communications device. The plurality of radar-transceivers is characterized as physically spaced apart with respect to each other. The controller is in communication with the each of the radar-transceivers and is configured to coherently operate each of the radar-transceivers. The communications device communicates both a reference-clock signal and a frame-sync signal from the controller to each of the plurality of radar-transceivers whereby the plurality of radar-transceivers operate coherently. Alternatively, the system may include a reference-signal generator, a transmitter, and a plurality of receivers. The reference-signal generator generates a reference-signal characterized by a reference-frequency proportional to a fraction of a radar-frequency of a radar-signal transmitted. The transmitter generates the radar-signal at the radar-frequency based on the reference-signal. The plurality of receivers operates coherently to detect the radar-signal based on the reference-signal. | 2021-09-30 |
20210302558 | VITAL-SIGN RADAR SENSOR USING A WIRELESS FREQUENCY-LOCKED LOOP - A vital-sign radar sensor using wireless frequency-locked loop includes a voltage-controlled oscillator (VCO), an antenna component, a mixer, a loop filter and a frequency demodulation component. The VCO outputs an oscillation signal to the antenna component via a output port, the antenna component transmits the oscillation signal to a subject as a transmitted signal and receives a reflected signal from the subject as a received signal, the mixer receives and mix the oscillation signal and the received signal into a mixed signal, the loop filter receives and filter the mixed signal to output a filtered signal, the filtered signal is delivered to the VCO via a tuning port, the frequency demodulation component receives and demodulates the oscillation signal to output a vital-sign signal. | 2021-09-30 |
20210302559 | DISTANCE MEASURING APPARATUS AND METHOD USING IMPULSE CORRELATION - A distance measuring apparatus includes: a DTC generator unit that generates DTC signals having edges delayed to define time segments; a template generator unit that generates template signals consecutively in a pre-designated number within the time segments in response to the DTC signals; a coarse time determiner unit that determines the time segment in which a delayed signal is received by calculating correlations with the consecutively generated template signals; a fine time measurer unit that determines the time at which the delayed signal is received within the time segment determined at the coarse time determiner unit from the results of calculating correlations between multiple template signals within the determined time segment and the delayed signal; and a distance calculator unit that calculates the total delay duration of the delayed signal and calculates the distance to the measurement target object from the calculated delay duration. | 2021-09-30 |
20210302560 | RADAR APPARATUS - The target detection accuracy of a radar apparatus is improved. The radar apparatus includes signal generation circuitry, which, in operation, generates a first transmission signal and a second transmission signal, and transmission circuitry, which, in operation, transmits a multiplexed signal resulting from code-multiplexing the first transmission signal and the second transmission signal, wherein a modulation frequency of the first transmission signal at a first timing is identical to a modulation frequency of the second transmission signal at a second timing that is later than the first timing. | 2021-09-30 |
20210302561 | SYSTEMS AND METHODS FOR LOCATING USER EQUIPMENT IN A WIRELESS NETWORK - Methods and apparatus are provided that may simplify and enhance the location of nodes in a network, including ED and mobile TPs, even if all or many of the nodes are mobile. The methods may be used to enable single TP positioning, and may be used to reduce synchronization error. The provided methods make use of smart reflectors having known location. By processing a combination of signals, which may include an original transmitted signal, and/or one or more reflected signals, the location of a receiving node can be determined. Media tagging may be employed to allow a receiver to detect the identity of the nearby reflectors (with known locations) and based on the identity determine the locations of the reflectors. Using this information, the receiving node can detect its location regardless of knowing the transmission source and/or location. | 2021-09-30 |
20210302562 | SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD - A secondary echo and a primary echo subjected to topographic echo processing are compared with each other. When there is a topographic echo in the primary echo or the secondary echo determined as a strong echo, an echo resulting from removal of the topographic echo is defined as a strong-topographic-echo-removed reception signal. Electric power of the topographic echo in the secondary echo or the primary echo determined as a weak echo and the strong-topographic-echo-removed reception signal are defined as weak echo parameters. Electric power of the weak echo estimated from a reception signal in a weak echo region resulting from phase correction of a reception signal resulting from removal of a frequency component of the strong echo from the strong-topographic-echo-removed reception signal representing the weak echo parameter, a spectral width of the weak echo representing the weak echo parameter, and a Doppler velocity of the weak echo are provided as spectral parameters. | 2021-09-30 |
20210302563 | MULTIPLE THRESHOLD CHECKERS FOR SPECIFIC APPLICATIONS AND FFT BASED BREATHING DETECTION FOR PRESENCE - In accordance with embodiments, methods and systems for utilizing multiple threshold checkers are provided. A range sensor collects measurement data. The range sensor examines the measurement data based on multiple threshold checkers to determine satisfaction of a trigger condition. In response to the satisfaction of the trigger condition, the range sensor provides the measurement data to a host computing device of the range sensor. | 2021-09-30 |
20210302564 | RADAR APPARATUS AND METHOD FOR CLASSIFYING OBJECT - A radar apparatus installed in a vehicle includes a transceiver that transmits a radar signal to an outside of the vehicle and receives a radar signal reflected from an object; a signal processing unit that processes the reflected radar signal to detect the object; a fusion data generation unit that generates fusion data based on radar data and camera data; and a classification unit that classifies the detected object using an artificial intelligence module trained based on the generated fusion data. | 2021-09-30 |
20210302565 | DOPPLER GROUP RADAR, GROUP SONAR AND GROUP SENSOR - In many applications such as automobiles on busy highways, if a lot of vehicles on road are equipped with Doppler radars to help improve driving safety, no matter human-driven or auto-driven, if the radars use same frequency band, avoiding interference between them is a hard task. Assigning distinct frequencies is one of the solutions, however not only it wastes expensive spectrum resource, but also the task itself to dynamically assign frequency to vehicles randomly come together becomes a hard one to do. The disclosed invention of Doppler group radar will allow radar devices to work together using shared frequency band without interfering one another, without sacrificing performance, and without much increase in costs. | 2021-09-30 |
20210302566 | GEO-LOCATING OF WIRELESS DEVICES USING A "PASS FILTER" FUNCTION - A method, wireless device and measuring station are disclosed that determine the best fit geo-location of a target station. According to one aspect, a method includes, using a “Pass Filter” for minimization of the summation of squared miss probabilities SSMP that improves the fitting process of the measured data over the method of minimization of the summation of the squared residuals (SSR) in the presence of spurious measurements. A “Pass Filter” approach is disclosed that reduces the corruption of the fitting process by outlier data and still yields the same result in the limit of clean data as the classic summation of the squared residuals (SSR) method. | 2021-09-30 |
20210302567 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM - An information processing device according to one aspect of the present invention includes at least one memory storing instructions; and at least one processor coupled to the memory and configured to execute the instructions to: extract a candidate point which is a point contributing to a signal at a target point, based on a position of the target point in a three-dimensional space and a shape of an observed object, the target point being a point specified in an intensity map of the signal from the observed object, the intensity map being acquired by a radar; and generate an image indicating a position of the candidate point in a spatial image capturing the observed object. | 2021-09-30 |
20210302568 | APPARATUS FOR COMPENSATING PHASE ERROR OF CHIRP SIGNAL - The present invention provides an apparatus for compensating a phase error of an RF band chirp signal by pre-distorting a base band chirp signal, including: a waveform generator to output the base band chirp signal; an RF modulator to output the RF band chirp signal by upconverting the base band chirp signal; an error calculation unit to calculate a phase error over time for a predetermined time by comparing the RF band chirp signal with an ideal chirp signal; a section division unit to divide the predetermined time into a plurality of time sections; a section combination unit to combine neighboring time sections based on the phase error; and a phase distortion unit to distort phase of the base band chirp signal in the combined time sections based on the phase error. | 2021-09-30 |
20210302569 | AUTONOMOUS MOVING OBJECT - The disclosure relates to an autonomous moving object comprising: a radar sensor configured to scan a volume in front of the object, and a radar signal processor configured to: acquire a sequence of radar responses, each radar response of the sequence being acquired at a different position (P) of the autonomous moving object, and perform synthetic aperture radar processing of at least parts of the acquired sequence of radar responses to obtain a synthetic aperture radar image representing response amplitude as a function of at least distance and angle with respect to the radar sensor, the autonomous moving object further comprising: a controller configured to detect presence of a potential obstacle within a pre-defined sub-volume in front of the autonomous moving object by analyzing the synthetic aperture radar image and, in response to detecting presence of a potential obstacle, output a control command configured to cause a changed movement of the autonomous moving object. | 2021-09-30 |
20210302570 | INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD, COMPUTER PROGRAM, INFORMATION PROCESSING SYSTEM, AND MOBILE DEVICE - Provided are an information processing device and an information processing method for processing detection information of a sensor, a computer program, an information processing system, and a mobile device. | 2021-09-30 |
20210302571 | OBJECT DETECTION SYSTEM - An object detection system includes: a transmission unit transmitting a transmission wave; a reception unit receiving a reception wave which is the transmission wave reflected and returned by an object; a signal processing unit configured to sample a processing target signal corresponding to the reception wave and acquire a difference signal based on a difference between the processing target signal for at least one sample and an average of values of the processing target signals for samples; a detection processing unit detecting, based on a value of the difference signal, a distance to the object a plurality of times with a lapse of time; and an identification processing unit identifying the object based on a transition, with the lapse of time, between the distance to the object and the value of the processing target signal at the detection timing at which the distance to the object is detected. | 2021-09-30 |
20210302572 | Ultrasonic Sensor - Object detection may include transmitting, by a first device, a first pulse into an environment using a wide field configuration of an ultrasonic sensor array, detecting a presence of an object in the environment based on a detected echo based on the first pulse. In response to detecting the presence of the object, a targeted configuration of the ultrasonic sensor array is determined, and a second pulse is transmitted into the environment based on the second pulse, wherein a characteristic of the object is determined based on a detected echo from the second pulse. | 2021-09-30 |
20210302573 | OBJECT DETECTION SYSTEM - An object detection system includes: a transmission unit configured to sequentially transmit a plurality of transmission waves to which identification information different from one another is applied; a reception unit configured to sequentially receive a plurality of reception waves respectively corresponding to the plurality of transmission waves returned in response to reflection by an object after all the plurality of transmission waves are transmitted by the transmission unit; and a detection processing unit configured to detect information related to the object based on a relationship between the plurality of transmission waves and the plurality of reception waves. | 2021-09-30 |
20210302574 | OBJECT DETECTION SYSTEM AND OBJECT DETECTION DEVICE - An object detection system includes: a plurality of object detection devices. Each of the plurality of object detection devices includes a transmission unit that transmits, substantially simultaneously with the other object detection devices, a transmission wave encoded based on one or a combination of two or more surges of a plurality of surges which are respectively applied with frequency modulations based on a plurality of chirp signals whose frequencies change in patterns different from one another, the one or the combination of two or more surges being different from those used in the other object detection devices, a reception unit that receives a reception wave that is the transmission wave returned in response to reflection by an object, and a detection processing unit that detects information related to the object based on information acquired as a result of transmission and reception of the transmission wave and the reception wave. | 2021-09-30 |
20210302575 | TRANSMISSION CIRCUIT AND ULTRASOUND DIAGNOSIS APPARATUS - A transmission circuit according to an embodiment includes: a plurality of constant current circuits, a plurality of switching elements, and controlling circuitry. The plurality of constant current circuits are connected in parallel to a power source line connected to a single power source and a transducer element. Each of the plurality of switching elements is connected to a different one of the plurality of constant current circuits and to the transducer element. The controlling circuitry is configured to control the plurality of switching elements on the basis of a waveform signal indicating a waveform of an ultrasound wave output from the transducer element. | 2021-09-30 |
20210302576 | POSITION CORRECTION USING TOWED SENSOR - Aspects of the subject technology relate to a method of correcting sensor position. The method comprises transmitting one or more first pulses of a first frequency range towards a first portion of a seabed and one or more second pulses of a second frequency range towards a second portion of the seabed, and receiving a first set and second set of backscattered data. The method further includes processing the first and second set of backscattered data to form a first and second set of image data and comparing the first set and second set of image data. The method further includes creating one or more error vectors between the first set and second set of image data, and updating the first set of backscattered data based on the one or more error vectors to produce an updated set of image data. | 2021-09-30 |
20210302577 | SILICON-OPA-BASED LIDAR FOR MEASURING DISTANCE USING QUASI-FREQUENCY MODULATION - A silicon phased array based LiDAR device that measures a distance using a quasi-frequency modulation is disclosed. A LiDAR device according to an exemplary embodiment of the inventive concept includes a light source that generates an optical signal, an optical modulator that generates a first optical signal having a quasi-frequency whose a modulation frequency constantly varies with time by modulating a light intensity of the optical signal, an optical splitter that splits optical power of the first optical signal into a reference optical signal and a transmit (Tx) optical signal, an optical transmitter that receives and emits the Tx optical signal toward an object, an optical receiver that receives a receive (Rx) optical signal reflected from the object and transfers the Rx optical signal, an optical coupler that mixes the reference optical signal and the Rx optical signal, a balanced photodetector that detects an intermediate frequency from the optical signal transferred from the optical coupler and a distance calculator that obtains distance information by measuring the intermediate frequency. | 2021-09-30 |
20210302578 | DISTANCE MEASURING DEVICE - A distance measuring device comprising an optical transmitter channel for transmitting laser light along a transmitter path and an optical reception channel for receiving laser light along a reception path. At least one optical element including a glass part with a coated surface is positioned in the optical transmitter channel or in the optical reception channel. The glass part includes a glass pane with a thickness below 0.3 mm, with a peripheral edge and with a coating on at least one of the two surfaces, and a ring element. The glass pane is adhesively connected to an end face of the ring element. This distance measuring device shows reduced measuring artefacts and/or reduced optical aberration effects and/or a reduced weight. | 2021-09-30 |
20210302579 | GROUP DOPPLER SENSOR OVER OPTICAL CARRIER - In many applications such as automobiles on busy highways, if a lot of vehicles on road are equipped with Doppler LIDARs to help improve driving safety, no matter human-driven or autonomous-driven, when multiple LIDARs are simultaneously illuminating an object, the LIDARs signals will interfere with each other. Avoiding interference between them is a hard task. The disclosed invention of “Doppler group LIDAR” will allow LIDAR devices of this kind to inherently work together in “physical layer” without interfering one another, without sacrificing performance, and without having to rely on higher layer protocols to achieve these goals, so that all LIDARs of this kind interoperate easily and reliably. | 2021-09-30 |
20210302580 | Overheight and wide load detection system and method thereof - A system for detecting an overheight and/or an over-width of a vehicle or a load carried by a vehicle includes a plurality of dimension sensors. The system also includes a controller configured to determine an object passing through the system based on the inputs received from at least one of the sensors, and determines at least one of a vertical continuous presence of the object or a horizontal continuous presence of the object. The controller determines the object as the load carried by the vehicle if at least one of the vertical continuous presence of the object or the horizontal continuous presence of the object is detected and generates an alert when a maximum height of the load is above a height limit and/or the maximum width of the load is above a width limit. | 2021-09-30 |
20210302581 | METHOD FOR DETECTING AND CONFIRMING A TOUCH INPUT - One variation of a method includes: defining a first capacitance gradient of capacitance thresholds spanning a capacitive touch sensor; defining a first pressure gradient of pressure thresholds spanning a pressure sensor; reading a capacitance value from the capacitive touch sensor proximal a first location; detecting presence of a first input at the first location in response to the capacitance value exceeding a capacitance threshold assigned to the first location; reading a pressure value from the pressure sensor proximal the first location; detecting presence of a second input proximal the first location in response to the pressure value exceeding a pressure threshold; in response to detecting the first input and detecting the second input: merging the first input and the second input into a confirmed touch input; and generating a first touch image representing the first location and the pressure value of the confirmed touch input. | 2021-09-30 |
20210302582 | A POINT CLOUD FEATURE-BASED OBSTACLE FILTER SYSTEM - A method, apparatus, and system for filtering obstacle candidates determined based on outputs of a LIDAR device in an autonomous vehicle is disclosed. A point cloud comprising a plurality of points is generated based on outputs of the LIDAR device. One or more obstacle candidates are determined based on the point cloud. The one or more obstacle candidates are filtered to remove a first set of obstacle candidates in the one or more obstacle candidates that correspond to noise based at least in part on characteristics associated with points that correspond to each of the one or more obstacle candidates. One or more recognized obstacles comprising the obstacle candidates that have not been removed are determined. Operations of an autonomous vehicle are controlled based on the recognized obstacles. | 2021-09-30 |
20210302583 | VAPOR DETECTION IN LIDAR POINT CLOUD - Various technologies described herein pertain to detecting data in a lidar point cloud representative of vapor and controlling an autonomous vehicle based on such detection. The lidar point cloud is outputted by a lidar sensor system of the autonomous vehicle. The techniques set forth herein utilize dual return lidar data outputted by the lidar sensor system. The dual return lidar data includes two lidar returns received responsive to a light beam emitted (e.g., at a particular azimuthal angle) by the lidar sensor system into a driving environment of the autonomous vehicle. The data in the lidar point cloud detected as being caused by vapor can be removed from downstream processing; accordingly, the autonomous vehicle can be controlled such that the autonomous vehicle need not stop for or maneuver around vapor in the driving environment. | 2021-09-30 |
20210302584 | METHOD, APPARATUS AND ELECTRONIC DEVICE FOR REAL-TIME OBJECT DETECTION - A method, an apparatus and an electronic device for real-time object detection are provided according to the present disclosure. In the method, target point cloud data in a range of a preset angle is acquired, where the target point cloud data includes one or more data points, and the preset angle is less than the round angle. A one-dimensional LiDAR point feature of each of the data points in the target point cloud data is determined. A previous frame of LiDAR feature vector is updated based on the one-dimensional LiDAR point feature of each of the data points in the target point cloud data to generate a current frame of LiDAR feature vector. Object information is determined in a real-time manner based on the current frame of LiDAR feature vector. With the method, apparatus and electronic device for real-time object detection provided according to embodiments of the present disclosure, a part of the point cloud data is selected to be processed in real time, which can reduce data delay, reduce the overall running time, and improve processing efficiency. By updating the whole LiDAR feature vector, the object information can be determined in real time in the whole range, so as to realize the object detection in the whole range. | 2021-09-30 |
20210302585 | SMART NAVIGATION METHOD AND SYSTEM BASED ON TOPOLOGICAL MAP - The invention discloses a smart navigation method and system based on a topological map, and relates to the technical field of computers. The smart navigation method based on a topological map comprises: determining a travelable region view according to current location information based on a constructed topological map (S | 2021-09-30 |
20210302586 | Range imaging apparatus and method of performing range imaging - A range imaging apparatus comprises a semiconductor laser transmitter, a receiver, and a data processing unit, a field-of-illumination of the semiconductor transmitter and a field-of-view of the receiver being overlapping. The receiver comprises single photon avalanche detector elements arranged two-dimensionally and operate in a Geiger mode. The semiconductor laser transmitter generates optical pulses repeatedly, a single optical pulse of the optical pulses being output as an optical beam with one or more stripes, which are parallel, one above another, and separate from each other. Each of the stripes of optical beams, which are reflected from objects within the field-of-view, illuminates a detector element configuration of the single photon avalanche detector elements. The data processing unit performs, synchronously with the optical pulses repeatedly generated, a selection of single photon avalanche detector elements of the detector element configurations in response to a generation of an optical pulse that illuminates one or more detector element configurations with the one or more stripes, and determines values corresponding to time-of-flights of said optical pulse based on electrical signals from the single photon avalanche detector elements of the selection for performing range imaging. | 2021-09-30 |
20210302587 | POWER-EFFICIENT HAND TRACKING WITH TIME-OF-FLIGHT SENSOR - Techniques are disclosed for operating a time-of-flight (TOF) sensor. The TOF may be operated in a low power mode by repeatedly performing a low power mode sequence, which may include performing a depth frame by emitting light pulses, detecting reflected light pulses, and computing a depth map based on the detected reflected light pulses. Performing the low power mode sequence may also include performing an amplitude frame at least one time by emitting a light pulse, detecting a reflected light pulse, and computing an amplitude map based on the detected reflected light pulse. In response to determining that an activation condition is satisfied, the TOF may be switched to operate in a high accuracy mode by repeatedly performing a high accuracy mode sequence, which may include performing the depth frame multiple times . | 2021-09-30 |
20210302588 | TIME OF FLIGHT RANGING SYSTEM USING MULTI-VALUED SIGNALS - A time of flight (TOF) ranging system includes multiple emitters, each emitting a signal whose intensity, amplitude or polarization is modulated by a corresponding delayed modulation signal. Each delayed modulation signal is a delayed version of a time varying multi-valued modulation signal, the amount of delay being determined by a spatial position of the emitter and direction of a target point on the target. The signal reflected by the target is correlated with the original modulation signal to generate an output having a peak representing the TOF to the target point. The same process is performed to detect other target points. Another TOF ranging system includes one emitter and multiple detectors; the signal from each detector is delayed in a similar manner and their sum is correlated with the original modulation signal to generate an output representing TOF. Yet another TOF ranging system includes multiple emitters and multiple detectors. | 2021-09-30 |
20210302589 | ELECTROMAGNETIC WAVE DETECTION APPARATUS AND INFORMATION ACQUISITION SYSTEM - An electromagnetic wave detection apparatus | 2021-09-30 |
20210302590 | IMAGING DEVICE - An imaging device includes: a solid-state image sensor that is exposed to reflection light from an object and accumulates signal charges; and a control arithmetic device that controls irradiation by an infrared light source and exposure of the solid-state image sensor. The solid-state image sensor includes: photoelectric converters that convert the reflection light from the object into the signal charges; and charge accumulators that accumulate the signal charges. The imaging device performs, within one frame period, m types of exposure sequences (m is an integer greater than or equal to four) for controlling the irradiation and the exposure; assigns the charge accumulators exclusively to the m types of exposure sequences; accumulates, into the charge accumulators, the signal charges obtained from n (n is an integer greater than or equal to three) of the photoelectric converters in at least one type of exposure sequence among the m types of exposure sequences. | 2021-09-30 |
20210302591 | OPTICAL APPARATUS, IN-VEHICLE SYSTEM, AND MOBILE APPARATUS - An optical apparatus includes a deflector configured to deflect illumination light from a light source unit so as to scan an object and configured to deflect reflected light from the object, a light guide configured to guide part of the illumination light from the light source unit to the deflector, another part to a first light receiving element, and the reflected. light from the deflector to a second light receiving element, and an optical element having an optical surface provided between the light guide and the second light receiving element. The optical surface tilts or is eccentric to a principal ray of the illumination light. | 2021-09-30 |
20210302592 | Crowdsourced Reputations for Wireless Networks - There is disclosed in one example a mobile computing apparatus, including: a hardware platform including a processor and a memory; a user display; a global positioning system (GPS) driver; a network interface; and instructions encoded within the memory to instruct the processor to: receive a device location from the GPS driver; via the network interface, query a cloud-based wireless access point (WAP) reputation service for WAP reputation data of nearby WAPs; and drive to the user display an image of nearby WAPs having overlaid thereon WAP reputation data for the nearby WAPs. | 2021-09-30 |
20210302593 | POSITIONING OF WEARABLE TRAINING COMPUTER - A wearable training computer comprising a processing circuitry configured to determine a location of the wearable training computer based on received location information. Based on the location of the wearable training computer, the processing circuitry is further configured to select a satellite positioning system configuration used for determining the location of the wearable training computer during a physical exercise. | 2021-09-30 |
20210302594 | DYNAMIC MODE FORMING FOR GPS ANTI-JAM CONTROLLED RECEPTION PATTERN ARRAYS - The system and method for dynamic mode forming for a global positioning/global navigation system. The system having a controlled reception pattern antenna (CRPA) mounted on a platform; an antenna electronics subsystem configured for dynamically maximizing gain in the controlled reception pattern antenna; and a global positioning/global navigation receiver subsystem configured for null processing, wherein a state of the platform is used to modify a reference mode and a plurality of auxiliary modes for the controlled reception pattern antenna in real-time based on an apriori look up table (LUT) to dynamically maximize a gain of the controlled reception pattern antenna. | 2021-09-30 |
20210302595 | MOBILE BODY, MOBILE BODY POSITION DISPLAY SYSTEM, AND METHOD THEREFOR - A mobile body specifies a current position of the mobile body with a position specification unit. Further, a detection units detects that the mobile body is in a still state after starting moving from a still state, and a signal containing the specified current position is output to the outside. The mobile body includes a power unit that supplies power to power-consuming units inside the mobile body. The power unit supplies power to the position specification unit during a period from first timing after the mobile body starts the movement to second timing after the mobile body enters the still state. | 2021-09-30 |
20210302596 | Methods and Systems for Utilizing Dual Global Positioning System (GPS) Antennas in Vertical Take-Off and Landing (VTOL) Aerial Vehicles - Systems, devices, and methods for a vertical take-off and landing (VTOL) aerial vehicle having a first GPS antenna and a second GPS antenna, where the second GPS antenna is disposed distal from the first GPS antenna; and an aerial vehicle flight controller, where the flight controller is configured to: utilize a GPS antenna signal via the GPS antenna switch from the first GPS antenna or the second GPS antenna; receive a pitch level of the aerial vehicle from the one or more aerial vehicle sensors in vertical flight or horizontal flight; determine if the received pitch level is at a set rotation from vertical or horizontal; and utilize the GPS signal not being utilized via the GPS antenna switch if the determined pitch level is at or above the set rotation. | 2021-09-30 |
20210302597 | PERCEPTION DATA BASED GNSS MULTIPATH IDENTIFICATION AND CORRECTION - Perception data based multipath identification and correction is based on recognition that sensors such as radar, LIDAR, and cameras can generate perception data indicative of locations and properties of terrestrial objects in an environment surrounding a satellite navigation device (e.g., a GNSS receiver), which data may then be used in training, or updating, a model for determining or correcting distances to satellites to account for multipath. Multipath identification includes identifying multipaths to train the model, e.g., by using perception data to perform ray tracing. Multipath correction includes using the model to correct distance errors due to the multipaths or, equivalently, using the model to determine distances to satellites in a manner that accounts for the multipaths. | 2021-09-30 |
20210302598 | METHOD FOR MEASURING RADIOACTIVITY OF RADIOACTIVE WASTE - The present invention relates to a method for measuring radioactivity of radioactive waste, the method comprising an adsorption step (A) of selectively adsorbing a radioactive substance comprising at least one from among radioactive iodine and radioactive cesium from radioactive waste containing radioactive substances on an adsorption member for adsorbing a radioactive substance, and a measurement step (B) of measuring radioactivity of the radioactive substance. | 2021-09-30 |
20210302599 | PHOTON COUNTING DETECTOR - The present invention relates to a photon counting detector comprising a first direct conversion layer ( | 2021-09-30 |
20210302600 | DEVICE AND METHOD FOR MEASUREMENT OF PROTON BEAM SOURCE POSITION AND BEAMLINE CENTER - A device and a method for measuring proton beam source position and beamline center are disclosed. The device includes N quadrupole magnets, a laser, a target and a scintillation screen; the target and the scintillation screen are arranged in front of and behind the N-quadrupole lens, respectively; the N-quadrupole lens can be converted to a M-quadrupole lens; the position of proton beam after being focused by the N- or M-quadrupole lens on the scintillation screen is measured; according to the amplification factor and the proton beam position, the offset of the proton beam source from the beamline center, as well as the position of the beamline center on the scintillation screen are calculated; the disclosure can accurately determine the position of the beamline center and the proton beam source by the use of N quadrupole magnets, combined with a scintillation screen. | 2021-09-30 |
20210302601 | ADVANCED FISSILE NEUTRON DETECTION SYSTEM AND METHOD - A fissile neutron detection system includes an ionizing thermal neutron detector arrangement including an inner peripheral shape that at least substantially surrounds a moderator region for detecting thermal neutrons that exit the moderator region but is at least generally transparent to the incident fissile neutrons. A moderator is disposed within the moderator region having lateral extents such that any given dimension that bisects the lateral extents includes a length that is greater than any thickness of the moderator arrangement transverse to the lateral extents. The moderator can include major widthwise and major lengthwise lateral extents such that any given dimension across the lengthwise and widthwise lateral extents includes a length that is greater than any thickness of the moderator arrangement transverse to the lateral extents. | 2021-09-30 |
20210302602 | SEISMIC SENSOR - A seismic sensor may include a simple earthquake detection mode in which measured acceleration data is not saved, and which mode is continued in a case in which the measured acceleration is equal to or less than a predetermined first threshold value. An earthquake detection mode may further be included in which the measured acceleration data is saved, and which mode is continued in a case in which the acceleration measured in the simple earthquake detection mode is greater than the first threshold value and equal to or less than a second threshold value that is greater than the first threshold value. An earthquake measurement mode may further be included in which the acceleration data and a spectrum intensity (SI) value are measured and saved, and which mode is continued in a case in which the acceleration measured in the earthquake detection mode is greater than the second threshold value. | 2021-09-30 |
20210302603 | PERFORMANCE-LEVEL SEISMIC MOTION HAZARD ANALYSIS METHOD BASED ON THREE-LAYER DATASET NEURAL NETWORK - A performance-level seismic motion hazard analysis method includes: (1) extracting seismic motion data and denoising the data; (2) extracting feature parameters from the data, and carrying out initialization; (3) generating a training set, an interval set and a test set; (4) training a multi-layer neural network based on the training set; (5) training output values of the neural network based on the interval set, and calculating a mean and a standard deviation of relative errors of the output values; (6) training the neural network based on the test set to determine output values, and calculating a magnitude interval based on an interval confidence; (7) carrying out probabilistic seismic hazard analysis to determine an annual exceeding probability and a return period of a performance-level seismic motion; and (8) determining a magnitude and an epicentral distance that reach the performance-level seismic motion based on the performance-level seismic motion and consistent probability. | 2021-09-30 |
20210302604 | SEISMIC SENSOR AND SENSOR CONTROL METHOD - A seismic sensor according to one or more embodiments may include: an acceleration measuring unit configured to repeatedly measure acceleration in three directions orthogonal to each other; and an index value calculator configured to operate in a measurement mode for calculating an index value of a magnitude of an earthquake based on a measurement result of acceleration in at least one direction by the acceleration measuring unit, and to operate in a standby mode with less power consumption than power consumption in the measurement mode. Then, the acceleration measuring unit monitors establishment of an activation condition that N times (M≥N≥2) measurement results in consecutive M times (M≥2) measurement results of acceleration in a predetermined direction exceed an acceleration threshold value. When the acceleration measuring unit detects establishment of the activation condition, the index value calculator transitions from the standby mode to the measurement mode. | 2021-09-30 |
20210302605 | INTERLEAF PACKING AND DEPLOYMENT SYSTEM - A packing module includes a volumetrically efficient structure for separately retaining sensors and a cable of a sensor array. The packing module includes a tray that supports the sensors and a retaining leaf arrangement that extends outwardly from the tray to retain the cable on the tray. The retaining leaf arrangement includes a plurality of nested leaves that are spaced relative to each other. Packing the module includes placing the sensors separately and in succession on the tray and inserting a portion of the cable in the retaining leaf arrangement in between each placing of a sensor. The placement of a sensor and insertion of a portion of the cable occurs alternately until the entire sensor array is accommodated. Deployment of the sensor array may occur by alternately removing a sensor and a portion of the cable until the sensor array is displaced from the module. | 2021-09-30 |
20210302606 | METHOD AND SYSTEM FOR AUTOMATED VELOCITY MODEL UPDATING USING MACHINE LEARNING - A method may include obtaining an initial velocity model regarding a subterranean formation of interest. The method may further include generating various seismic migration gathers with different cross-correlation lag values based on a migration-velocity analysis and the initial velocity model. The method may further include selecting a predetermined cross-correlation lag value automatically using the seismic migration gathers and based on a predetermined criterion. The method may further include determining various velocity boundaries within the initial velocity model using a trained model, wherein the trained model is trained by human-picked boundary data and augmented boundary data. The method may further include updating, by the computer processor, the initial velocity model using the velocity boundaries, the automatically-selected cross-correlation lag value, and the migration-velocity analysis to produce an updated velocity model. The method may further include generating an image of the subterranean formation of interest using the updated velocity model. | 2021-09-30 |
20210302607 | METHODS AND SYSTEMS FOR DETERMINING SUBSURFACE FEATURE USING BROADBAND FULL WAVEFORM INVERSION - A computer-implemented method for determining a subsurface feature, includes: determining a first velocity model based on an initial velocity model; generating a second velocity model based on measured seismic data at one or more first frequencies, the first velocity model, and a full waveform inversion (FWI); and in response to the second velocity model not satisfying a preset condition, performing a seismic forward simulation on the second velocity model to generate simulated seismic data at one or more second frequencies lower than the one or more first frequencies; updating the first velocity model based on the simulated seismic data at the one or more second frequencies; and updating the second velocity model based on the measured seismic data at the one or more first frequencies, the updated first velocity model, and the FWI, to determine the subsurface feature. | 2021-09-30 |
20210302608 | Method For Attenuation Compensation Utilizing Non-Stationary Matching Filters - A method and apparatus for generating attenuation-compensated images of subsurface region, including: computing an image of the region utilizing elastic wave propagation, based on field data and subsurface model; generating forward-modeled data utilizing forward viscoelastic wave propagation, based on the image; computing secondary image by migration; computing NMF based on the images; and applying the NMF to the image to generate the attenuation-compensated image. A method and apparatus includes: iteratively computing attenuation-compensated gradient of the region utilizing an elastic wave propagation operator in the back-propagation and a viscoelastic wave propagation operator in the forward modelling, based on field data and subsurface model; computing search direction based on the attenuation-compensated gradient, searching for an improved model, and checking the improved model for convergence. | 2021-09-30 |
20210302609 | METHOD AND DEVICE FOR MONITORING THE SUBSOIL OF THE EARTH UNDER A TARGET ZONE - In order to monitor the subsoil of the earth under a target zone, seismic waves coming from an identified mobile noise source are recorded by means of at least one pair of sensors disposed on either side of the target zone, time periods are selected corresponding to the alignments of the pairs of sensors with the noise source, a seismogram of the target zone is reconstructed by interferometry based on the recorded seismic waves and on the selected time periods and an image of the subsoil of the target zone is generated using the seismogram. | 2021-09-30 |
20210302610 | METHOD OF SEPARATION EVALUATION OF ACOUSTIC ANISOTROPY AND HETEROGENEITY - Aspect of the disclosure provides for a method to display sonically received data after defects of anisotropy and heterogeneity have been removed. | 2021-09-30 |
20210302611 | POST-STACK TIME DOMAIN IMAGE WITH BROADENED SPECTRUM - A computer system receives a post-stack time-domain image having a first spectrum and representing one or more subsurface structures. The computer system reconstructs an increased-frequency version of the post-stack time-domain image using L0-constrained inversion and a least-squares mismatch ratio. The increased-frequency version of the post-stack time-domain image includes structural artifacts. The computer system removes the structural artifacts from the increased-frequency version of the post-stack time-domain image using singular value decomposition. The computer system combines the increased-frequency version of the post-stack time-domain image with the post-stack time-domain image using a weighting function. The computer system generates a combined version of the increased-frequency version of the post-stack time-domain image and the post-stack time-domain image. The combined version represents the one or more subsurface structures and has a second spectrum broader than the first spectrum. | 2021-09-30 |
20210302612 | DYNAMIC FIELD OPERATIONS SYSTEM - A method can include acquiring data associated with a field operation in a geologic environment; processing the data by partitioning operationally and representing symbolically; formulating a symbolic query for an operating procedure specification; performing a search of the symbolically represented data utilizing the symbolic query and a probabilistic chain model; receiving a search result responsive to the search; assessing compliance with the operation procedure specification utilizing the search result; and issuing a control signal to field equipment utilizing the assessment of compliance. | 2021-09-30 |
20210302613 | Distributed Airborne Electromagnetic Detection System - The present disclosure discloses a distributed airborne electromagnetic detection system, and relates to an airborne electromagnetic detection technology. The distributed airborne electromagnetic detection system comprises at least one transmitting system, at least one receiving system, at least one trunk module, and an earth station, and also a plurality of Unmanned Aerial Vehicles (UAVs) for carrying the transmitting system, the receiving system, and the trunk module. The distributed airborne electromagnetic detection system does not require high performance or high economical efficiency for a single UAV; under precise synchronous flight conditions, the distance between a type I UAV and a transmitting loop structure can be greatly reduced, thereby significantly reducing the length of unwanted transmitting cable; and in addition, due to the better low-altitude low-speed performance of UAVs, the traveling speed of the entire system can be further reduced, thus obtaining higher quality data. | 2021-09-30 |
20210302614 | DOSE-CONTROLLED VEHICLE INSPECTION - A method for inspecting at least one vehicle with an inspection system, the inspection system and the at least one vehicle being configured to move relative to one another during an inspection of at least one part of the vehicle, the method including controlling, by a controller, an inspection dose of inspection radiation generated by a radiation source such that, during the inspection of the at least one part of the vehicle by the inspection radiation, the inspection dose remains substantially equal to a predetermined inspection dose, wherein controlling the inspection dose includes the controller obtaining information representative of a speed of the relative movement of the system and the vehicle during the inspection of the at least one part of the vehicle, and the controller controlling the radiation source, based on the obtained information. | 2021-09-30 |
20210302615 | VEHICLE INSPECTION CONTROLLED USING IMAGE INFORMATION - A method for inspecting at least one vehicle with an inspection system, the inspection system and the at least one vehicle being configured to move relative to one another during an inspection of at least one part, the method including controlling, by a controller, an inspection dose of inspection radiation generated by a radiation source such that, during the inspection of the at least one part of the vehicle by the inspection radiation, the inspection dose remains substantially equal to a predetermined inspection dose, wherein controlling the inspection dose includes the controller obtaining image information representative of a location of the at least one part, and location information representative of a location of the at least one part, wherein the image information is obtained from an image of the vehicle, and the controller controlling the radiation source, based on the obtained information. | 2021-09-30 |
20210302616 | LASER DETECTION SYSTEM - A monitoring system comprising a transmitter and a receiver, the transmitter including a laser transmitter assembly selectively securable to a transmitter post between a transmitter proximate position adjacent a base end of the post and a transmitter distal position adjacent a distal end of the post, the laser transmitter assembly including a laser source arranged to project a laser beam from the transmitter, the receiver to be located a transmission distance from the transmitter and including a laser receiver assembly selectively securable to a receiver post between a receiver proximate position adjacent a base end of the post and a receiver distal position adjacent a distal end of the post to be aligned with the laser transmitter assembly to receive the laser beam, the laser receiver assembly including a detector to detect the laser beam and generate a signal in response to a laser beam interruption event. | 2021-09-30 |
20210302617 | DEVICE AND METHOD FOR OPTICALLY SURVEILLING AT LEAST ONE AREA - Described herein is a device for optically surveilling at least one area. The device includes a sender unit and a receiver unit. The sender unit has at least one illumination source. The illumination source is designed to generate at least one light beam having a beam profile. Each light beam is designated for propagating to the receiver unit, thereby traversing at least one area for surveillance. The receiver unit includes
| 2021-09-30 |
20210302618 | IDENTIFYING SUBTERRANEAN STRUCTURES USING AMORPHOUS METAL MARKERS - Disclosed are methods and apparatus for identifying non-metallic subterranean structures using amorphous metal markers associated with the structures. Some examples will include the amorphous metal in the form of one or more sections of an amorphous metal foil within a protective enclosure sufficient to physically isolate the amorphous metal foil from the surrounding Earth. The amorphous metal foil and enclosure may be in the form of a tape which either will be secured to, or placed proximate the subterranean structure, which may be, for example, a pipe or conduit, or other non-metallic structure. | 2021-09-30 |
20210302619 | WELLBORE QUALITY IMPROVEMENT - A computer system receives data representing a hydrocarbon reservoir. The data includes a surface location, reservoir property data, mechanical property data, and offset well information of the hydrocarbon reservoir. The computer system generates a three-dimensional (3D) geomechanical model of the hydrocarbon reservoir based on the data. The 3D geomechanical model is for identifying a sweet spot in the hydrocarbon reservoir for drilling and stimulation, and placing a hydrocarbon well in the sweet spot. The computer system determines drilling parameters based on the 3D geomechanical model and the offset well information. The drilling parameters are to reduce an enlargement of a wellbore of the hydrocarbon well. The computer system monitors the drilling parameters until the hydrocarbon well reaches a particular depth from a surface of the Earth. The computer system performs a rigless operation on the hydrocarbon well. | 2021-09-30 |
20210302620 | COMPARISON OF WELLS USING A DISSIMILARITY MATRIX - Well information may define subsurface configuration of different wells. Marker information defining marker positions within the wells may be obtained. A dissimilarity matrix for the wells may generated, with the element values of the dissimilarity matrix determined based on comparison of corresponding subsurface configuration of the wells. A gated dissimilarity matrix may be generated from the dissimilarity matrix based on the marker positions within the wells. The elements values of the gated dissimilarity matrix corresponding to one set of marker positions and not corresponding to the other set of marker positions may be changed. Correlation between the wells may be determined based on the gated dissimilarity matrix such that correlation exists between a marker position in one well and a marker position in another well. | 2021-09-30 |
20210302621 | EDGE INTELLIGENCE POWERED SECURITY SOLUTIONS AND OTHER APPLICATIONS FOR A SMART CITY - A system for sensing and responding to detected activity or an event in a region is provided. The system may comprise: a modular edge computing platform configured to provide a predetermined functionality for a particular application, the modular edge computing platform is configured to process sensor data to generate processed data, and transmit the processed data; and a remote entity that comprises (i) a cloud analytic configured to receive the processed data from the modular edge computing platform and analyze the processed data, and (ii) a cloud user interface module configured to provide a graphical user interface on a user device, the graphical user interface displays one or more results generated by the cloud analytic upon analyzing the processed data. | 2021-09-30 |
20210302622 | SNOW SENSOR ASSEMBLIES AND METHODS FOR USE WITH SAME - Snow sensors methods and mechanisms for snow sensor reading, methods for controlling assemblies used with snow sensors, such as snow removal systems and assemblies and related components, as well as component combinations and related methods. | 2021-09-30 |