27th week of 2020 patent applcation highlights part 41 |
Patent application number | Title | Published |
20200209341 | SYSTEMS AND METHODS FOR DETERMINING LOCATIONS OF WIRELESS SENSOR NODES BASED ON ANCHORLESS NODES AND KNOWN ENVIRONMENT INFORMATION - Systems, apparatuses, and methods for determining locations of wireless nodes in a network architecture are disclosed herein. In one example, a system for localization of nodes in a wireless network architecture, comprises a wireless node having a wireless device with one or more processing units and RF circuitry for transmitting and receiving communications in the wireless network architecture; and a plurality of wireless sensor nodes having a wireless device with a transmitter and a receiver to enable bi-directional communications with the wireless node in the wireless network architecture. One or more processing units of the wireless node are configured to execute instructions to determine ranging data including a set of possible ranges between the wireless node and the plurality of wireless sensor nodes having unknown locations, and to associate a set of relative locations within an environment of the wireless network architecture with the wireless node and the plurality of wireless sensor nodes. | 2020-07-02 |
20200209342 | IDENTIFYING AN ASSET SORT LOCATION - Systems and methods for facilitating the sorting of assets to sort locations. In various embodiments, a sort employee scans an asset indicia using a user device, which stores asset data corresponding to the stored asset. As the sort employee nears a sort location (e.g., a delivery vehicle) with the asset and the user device, the user device automatically communicates wirelessly with a sort location receiver to associate the asset data with data indicative of the sort location where the user deposits the asset. In various embodiments, a device may determine whether the user device is proximate the appropriate sort location for the item, and may generate an alert upon a determination that the user device is proximate an incorrect sort location. | 2020-07-02 |
20200209343 | SITE MATCHING FOR ASSET TRACKING - A wireless RF tracking system comprising a transmitter (tag) and a receiver, the transmitter having a motion sensor, an RF communication module and a processor. The system has an algorithm configured to send a data ping from the transmitter via the RF communication module to the receiver, the algorithm being a smart location algorithm including both event-based ping methodology and time-based ping methodology. The system additional utilizes a geofencing system to expand the area around the smart location. | 2020-07-02 |
20200209344 | OBJECT DETECTION VIA BLUETOOTH LOW ENERGY - A vehicle object detection system according to an example of the present disclosure at least two BLE modules configured to communicate with each other and measure RSSI values between the at least two BLE modules. The system also includes a main controller configured to communicate with the at least two BLE modules to receive the measured RSSI values between the at least two BLE modules. At least one of the main controller or at least one of the at least two BLE modules are configured to evaluate said measured RSSI values to detect an object between the at least two BLE modules in response to a change in said measured RSSI values. | 2020-07-02 |
20200209345 | METHOD AND APPARATUS FOR LOCATION ESTIMATION OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM - Provided are a method and apparatus for location estimation of terminals in a wireless communication system. A method of operating a positioning apparatus may include (a) calculating distances between a terminal and first, second, and third base stations, (b) creating first, second, and third circles centered at locations of the first, second, and third base stations with radii corresponding to the distances, (c) calculating intersection distances between two intersections formed by the second circle, which is the smallest circle, and one of the first circle and the third circle and the other two intersections formed by the first circle and the third circle, and (d) determining one of the intersections corresponding to the shortest distance among the intersection distances as the terminal's location. | 2020-07-02 |
20200209346 | TRANSMITTING ULTRASONIC SIGNAL DATA - Disclosed is a method for transmitting data via a vehicle data bus from an ultrasonic system, which comprises at least one ultrasonic transmitter and an ultrasonic receiver, to a data processing device, wherein predetermined signal profile characteristics are extracted from the echo signal received by the at least one ultrasonic receiver of the ultrasonic system. Echo signal data, which represent signal profile characteristics extracted from the echo signal, is created. Said echo signal data is transmitted from the ultrasonic system via the vehicle data bus to the data processing device. | 2020-07-02 |
20200209347 | ORTHOGONAL PHASE MODULATION FOR DETECTION AND COMMUNICATION IN RADAR - A method of orthogonal modulation of radar waves of a phase-modulated continuous wave radar system. The method includes selecting an equidistant bi-phased or multi-phased phase-modulation sequence, phase-modulating the continuous radar wave, and transmitting the orthogonal phase-modulated continuous radar wave towards a scene. The method includes generating a detection sequence (s) by applying an outer coding (H) to the phase-modulation sequence, selecting a communication range (C) in the complex number plane, based on the selected phase-modulation, generating a communication sequence (c) having a plurality of sequence members, mapping the communication sequence (c) into the communication range (C) by applying an injective mapping function (Γ) to the sequence members, and calculating a numerical product of members of the detection sequence (s) with members of an image of the mapped communication sequence (c). Phase-modulating the continuous wave of the radar system is carried out according to the calculated numerical products. | 2020-07-02 |
20200209348 | METHODS AND SYSTEM FOR ENHANCED RFID DIRECTION FINDING - At least some embodiments of the present invention are directed to RFID reader systems configured to estimate a directional bearing of an RFID tag. In an embodiment, the present invention is an RFID system configured in a way that upon a detection of a variance in the direction of a maximum RSSI value for a given RFID tag in response to a plurality of interrogation signals transmitted by an RFID reader over a respective plurality of different directions, the RFID reader retransmits the plurality of interrogation signals over the respective plurality of different directions with successively lower power levels until the only response(s) being received no longer exhibit the previously detected variance. | 2020-07-02 |
20200209349 | RADAR SYSTEMS AND METHODS HAVING ISOLATOR DRIVEN MIXER - Radar circuitry can include an isolator and a mixer. The isolator can isolate a transmission signal path and a reception signal path from each other, and generate a mixing (e.g. oscillation) signal based on a transmission signal. The isolator can be coupled to the mixer such that the drive signal drives the mixer (e.g. serves as the local oscillation signal of the mixer). The mixer mixes a received signal and the drive signal to generate a converted signal (e.g. a down-converted signal). The isolator can be a hybrid transformer or electrically balanced duplexer. | 2020-07-02 |
20200209350 | MITIGATING MUTUAL COUPLING LEAKAGE IN SMALL FORM FACTOR DEVICES - Apparatus and methods are disclosed for determining, on a small form factor 5G communication device, the range of a target object include receiving, at a receiving antenna of the small form factor communication device, a composite signal where the composite signal includes a target reflection signal and a mutual coupling (MC) leakage signal, generating a composite beat waveform by mixing the composite signal with an original signal, where the composite beat includes target beat and MC leakage beat waveform components, isolating the target beat waveform by subtracting from the composite beat waveform a weighted, k-delayed composite beat waveform, where for a configured k the target beat waveforms are uncorrelated and the MC leakage beat waveforms are correlated, and determining, using the target beat waveform, a range of the target object from the small form factor device. | 2020-07-02 |
20200209351 | ESTIMATING METHOD, ESTIMATING DEVICE, AND RECORDING MEDIUM - An estimating method includes: measuring and receiving reception signals including a reflected signal reflected by a moving body, for a first period equivalent to a cycle of movement of the moving body; calculating first complex transfer functions indicating propagation characteristics, from the reception signals measured in the first period; calculating second complex transfer functions having reduced components corresponding to fluctuations, from the first complex transfer functions; extracting moving body information corresponding to a component related to the moving body by extracting moving body information corresponding to a predetermined frequency range of the second complex transfer functions calculated; and estimating a direction in which the moving body is present using the moving body information. | 2020-07-02 |
20200209352 | Methods and Apparatus for Velocity Detection in MIMO Radar Including Velocity Ambiguity Resolution - In accordance with described examples, a method determines if a velocity of an object detected by a radar is greater than a maximum velocity by receiving on a plurality of receivers at least one frame of chirps transmitted by at least two transmitters and reflected off of the object. A velocity induced phase shift (φ | 2020-07-02 |
20200209353 | MEASUREMENT OF TRANSCEIVER PERFORMANCE PARAMETERS IN A RADAR SYSTEM - Methods for monitoring of performance parameters of one or more receive channels and/or one or more transmit channels of a radar system-on-a-chip (SOC) are provided. The radar SOC may include a loopback path coupling at least one transmit channel to at least one receive channel to provide a test signal from the at least one transmit channel to the at least one receive channel when the radar SOC is operated in test mode. In some embodiments, the loopback path includes a combiner coupled to each of one or more transmit channels, a splitter coupled to each of one or more receive channels, and a single wire coupling an output of the combiner to an input of the splitter. | 2020-07-02 |
20200209354 | METHODS AND COMPUTER DEVICES FOR DETERMINING ANGULAR OFFSET OF RADAR SYSTEM - Methods and computer devices for determining an angular offset of a radar system having been mounted on a vehicle having a forward direction of travel along a surface. The angular offset is an angle between the scanning direction and the forward direction. The method includes receiving radar data from the radar system. The method includes determining projections of an immobile object velocity in the scanning direction and a direction perpendicular to the scanning direction. The method also includes determining the angular offset of the radar system based on at least one of the projections of the immobile object velocity. | 2020-07-02 |
20200209355 | SOLID-STATE ELECTRONIC SCANNING LASER ARRAY WITH HIGH-SIDE AND LOW-SIDE SWITCHES FOR INCREASED CHANNELS - An electronically scanning emitter array that includes a two-dimensional array of light emitters arranged in k emitter banks. Each of the k emitter banks can include a subset of the light emitters in the two-dimensional array and can be independently operable to emit light from its subset of emitters. The electronically scanning emitter array can further include first and second capacitor banks coupled to provide energy to the two-dimensional array of light emitters and emitter array driving circuitry coupled to the first and second capacitor banks and to the k emitter banks. Each of the first and second capacitor banks can include at least one capacitor. The emitter array driving circuitry can include a first high-side switch coupled between the first capacitor bank and a voltage source, a second high-side switch coupled between the second capacitor bank and the voltage source, and k/2 low-side switches coupled between the k emitter banks and ground; and the emitter driving circuitry can be configured to fire one emitter bank in the k emitter banks at a time according to a firing sequence until each of the k emitter banks are fired. | 2020-07-02 |
20200209356 | THREE-DIMENSIONAL LIGHT DETECTION AND RANGING SYSTEM USING HYBRID TDC AND ADC RECEIVER - A method for operating a LiDAR system in an automobile that can include sending light pulses toward an object; receiving analog sensor data from an optical sensor measuring the light pulses reflected off the object; digitizing the analog sensor data using an analog to digital conversion system having a first sampling rate to generate a first set of processed sensor data and using a time to digital conversion system having a second sampling rate that is greater than the first sampling rate to generate a second set of processed sensor data; selecting the first set of processed sensor data when the analog sensor data is beneath a threshold signal to noise ratio; selecting the second set of processed sensor data when the analog sensor data exceeds the threshold signal to noise ratio; and calculating a range between the LiDAR system and the object by extracting time of flight data from the selected set of processed sensor data. | 2020-07-02 |
20200209357 | OPTICAL PROXIMITY SENSING CIRCUIT AND METHOD FOR OPTICAL PROXIMITY SENSING - In one embodiment an optical proximity sensing circuit comprises an optical emitting device which is prepared to send a signal having a wavelength of the invisible spectrum, a light conversion material being prepared to convert a reflected signal into a detectable signal, the reflected signal being a function of a reflection of the signal off a human user and the detectable signal having a wavelength of the visible spectrum, and an optical receiving device arranged apart from but in a visual range of the optical emitting device and prepared to detect the detectable signal and therefrom provide a measurement signal which is a function of a distance between the optical proximity sensing circuit and the human user, wherein the conversion material is mounted to the optical receiving device, and wherein each of the signal, the reflected signal and the detectable signal is an optical signal. | 2020-07-02 |
20200209358 | MULTIPLE LASER, SINGLE RESONATOR LIDAR - Various technologies described herein pertain to multiple laser, single optical resonator lidar systems. A lidar system includes a single optical resonator optically coupled to at least a first laser and a second laser. The optical resonator is formed of an electrooptic material. The first laser and the second laser are optically injection locked to the optical resonator. Moreover, a modulator applies a time-varying voltage to the optical resonator to control modulation of an optical property of the electrooptic material, which causes the first laser to generate a first frequency modulated optical signal comprising a first series of optical chirps and/or the second laser to generate a second frequency modulated optical signal comprising a second series of optical chirps. Further, front end optics transmits at least a portion of the first frequency modulated optical signal and/or the second frequency modulated optical signal into an environment from the lidar system. | 2020-07-02 |
20200209359 | VIRTUAL ARRAY METHOD FOR 3D ROBOTIC VISION - A pulsed light source illuminates a scene with a virtual array of points. Light reflected by the scene is detected by a small pixel array, allowing generation of a three-dimensional map of the scene. A processing element processing data output by the small pixel array uses a multipath resolution algorithm to resolve individual objects in the scene. | 2020-07-02 |
20200209360 | METHOD AND DEVICE FOR SCANNING A SOLID ANGLE - A method for scanning solid angles is provided using at least two electromagnetic beams, at least one electromagnetic beam being generated that is subsequently deflected along a horizontal angle and/or along a vertical angle with the aid of a rotatable mirror; the solid angles being scanned using the at least one electromagnetic beam; and at least one reflected electromagnetic beam being received, after being reflected off an object, by a receiving optics that is pivotable along the horizontal angle synchronously with the mirror. Furthermore, a LIDAR device for carrying out the method is provided. | 2020-07-02 |
20200209361 | LIDAR SENSOR FOR A LIDAR SYSTEM - A LIDAR sensor, including: a transceiver-array, which includes a plurality of optical-transceivers, the transceiver-array being a switched-array photonic integrated-circuit, each of the optical-transceivers being set up to in each instance take in a first scanning-spot in a first field-of-view of the LIDAR sensor; a microlens-array which has a plurality of microlenses, the microlens-array being disposed in an optical path of the LIDAR sensor in front of the transceiver array, one each of the microlenses in the optical-path being situated in front of one each of the optical-transceivers; a lens that is disposed in the optical-path in front of the microlens-array; and an optical-scanning-unit which is equipped to alter an optical-beam-path, that starts from one of the optical-transceivers, so that in each instance, a second scanning-spot in the first field-of-view of the LIDAR sensor is sensed by the optical-transceivers, the first scanning-spots lying between the second scanning-spots. | 2020-07-02 |
20200209362 | SYSTEM AND METHODS FOR RANGING OPERATIONS USING MULTIPLE SIGNALS - Method and system for performing ranging operation are provided. In one example, a transmitter is configured to transmit a first signal having a first signal level and a second signal having a second signal level, the second signal being transmitted after the first signal, the first signal and the second signal being separated by a time gap configured based on a minimum distance of a range of distances to be measured by the LiDAR module. The first signal level and the second signal level are configured based on the range of distances to be measured by the LiDAR module, a range of levels of reflectivity of a target object to be detected by the LiDAR module, and a dynamic range of a receiver circuit to receive the first signal and the second signal. Ranging operation can be performed based on the time-of-flight of at least one of the first signal or the second signal. | 2020-07-02 |
20200209363 | METHOD AND SYSTEM FOR TESTING LIDAR SENSORS - A system and method for testing a Light Detection and Ranging (LiDAR) sensor is disclosed. The system includes the LiDAR sensor radiating a plurality of LiDAR rays, a plurality of bars positioned at a predetermined distance from the LiDAR sensor, and a testing device. The method includes triggering a LiDAR sensor to radiate a plurality of LiDAR rays. The method further includes determining at least one intersection point at each of a plurality of bars upon intersection of at least one LiDAR ray from the plurality of LiDAR rays with each of the plurality of bars. The method further includes computing at least one operational parameterfor the LiDAR sensor based on the intersection points, and determining one or more test results based on the one or more operational parameters. | 2020-07-02 |
20200209364 | METHOD AND SYSTEM FOR DETECTING PRESENCE OF PARTIAL VISUAL FAULT IN LIDAR SENSOR OF VEHICLE - Embodiments of present disclosure relates to method and system to accurate detection of partial visual fault in lidar sensor of moving vehicle. Initially, first line cluster data for static objects present within first predefined view of Lidar sensor is determined. Static objects are tracked until viewing angle of Lidar sensor for corresponding static object is 90°. The tracking is performed based on second line cluster data corresponding to first line cluster data for static objects present within second predefined view of Lidar sensor. During tracking, non-observation of second line cluster data corresponding to first line cluster data, for one or more static objects is detected. Angle of non-observation is determined for one or more static objects upon detection. Presence of partial visual fault for Lidar sensor is detected based on angle of non-observation, for notifying navigation system associated with moving vehicle. | 2020-07-02 |
20200209365 | LASER DATA CALIBRATION METHOD AND ROBOT USING THE SAME - The present disclosure provides a laser data calibration method and robot using the same. The method includes: obtaining a pose of a movable device; determining a pose of the lidar based on the pose of the movable device and a transformation relationship between the movable device and the lidar: determining an instantaneous speed of the lidar based on the pose of the lidar at two adjacent time points; determining a delay time of an collection time of one frame of raw laser data obtained through the lidar by scanning for one round with respect to an collection time of a first raw laser data: and obtaining a calibration data of the raw laser data based on the instantaneous speed, tire delay time, and the raw laser data. Through the above-mentioned method, the calibration of the raw laser data can be realized. | 2020-07-02 |
20200209366 | FMCW LIDAR WITH WAVELENGTH DIVERSITY - Various technologies described herein pertain to multiple laser, single optical resonator lidar systems. A lidar system includes a single optical resonator optically coupled to at least a first laser and a second laser. The optical resonator is formed of an electrooptic material. The first laser and the second laser are optically injection locked to the optical resonator. Moreover, a modulator applies a time-varying voltage to the optical resonator to control modulation of an optical property of the electrooptic material, which causes the first laser to generate a first frequency modulated optical signal comprising a first series of optical chirps and/or the second laser to generate a second frequency modulated optical signal comprising a second series of optical chirps. Further, front end optics transmits at least a portion of the first frequency modulated optical signal and/or the second frequency modulated optical signal into an environment from the lidar system. | 2020-07-02 |
20200209367 | MULTI-BEAM LIDAR SYSTEMS AND METHODS FOR DETECTION USING THE SAME - The present disclosure provides a multi-beam LiDAR system. The multi-beam LiDAR system includes a transmitter having an array of laser emitters. Each laser emitter is configured to emit a laser beam. The multi-beam LiDAR system also includes a receiver having an array of photodetectors. Each photodetector is configured to receive at least one return beam that is reflected by an object from one of the laser beams. The laser emitter array includes a plurality of laser emitter boards perpendicular to a horizontal plane. Each laser emitter board has a plurality of laser emitters. The plurality of laser emitters in the laser emitter array are staggered along a vertical direction. The photodetector array includes a plurality of columns of photodetectors. One of the laser emitter boards corresponds to one column of photodetectors. | 2020-07-02 |
20200209368 | POSITION DETECTING METHOD, DEVICE AND STORAGE MEDIUM FOR VEHICLE LADAR - The present application provides a position detecting method, device and storage medium for a vehicle ladar, where the method includes: detecting, through a ladar disposed on an autonomous vehicle, detection data of at least one wall of an interior room in which the autonomous vehicle is located, obtaining a point cloud image according to the detection data of the at least one wall, and judging, according to the point cloud image, whether an installation position of the ladar is accurate. According to the technical solution, it is possible to accurately detect whether the installation position of the ladar is accurate, provide a prerequisite for calibration of the installation position of the ladar, and improve detection accuracy of the ladar for obstacles around the autonomous vehicle. | 2020-07-02 |
20200209369 | Method for Calibrating the Alignment of a Moving Object Sensor - This disclosure relates, e.g., to a method for calibrating the alignment of a moving object sensor that comprises the steps: Detection of the movement of the object sensor, multiple detection of at least one static object by the moving object sensor at different positions of the object sensor, calculation of the relative positions of the static object with respect to the corresponding positions of the object sensor, calculation of anticipated positions of the static object from the relative positions while assuming an alignment error of the object sensor, calculation of an error parameter from the anticipated positions, and minimization of the error parameter by adapting the alignment error of the object sensor. | 2020-07-02 |
20200209370 | INTERFACE FOR IMPROVED HIGH DEFINITION MAP GENERATION - Systems and methods are disclosed related to generating interactive user interfaces that enable a user to alter 3D point cloud data and/or associated pose graph data generated from LiDAR scans prior to generation of a high definition map. A user may make selections in a 2D map representation with overlaid graph node indicators in order to alter graph connections, remove nodes, view corresponding 3D point clouds, and otherwise edit intermediate results from LiDAR scans in order to improve the quality of a high definition map subsequently generated from the user-manipulated data. | 2020-07-02 |
20200209371 | REVERBERATION ARTIFACT CANCELLATION IN ULTRASONIC DIAGNOSTIC IMAGES - An ultrasonic diagnostic imaging system acquires received beams of echo signals produced in response to a plurality of transmit events. The received beams are combined with refocusing to account for differences in receive beam to transmit event locations. The delays and weights used in the refocusing are supplemented with delays and weights which correct for reverberation artifacts. The received echo signals are processed to detect the presence of reverberation artifacts and a simulated transmission of reverberation signal components to virtual point sources in the image field is calculated. This simulation produces the delays and weights used for reverberation signal compensation, or estimated reverberation signals which can be subtracted from received echo signals to reduce reverberation artifacts. | 2020-07-02 |
20200209372 | SYSTEMS AND METHODS FOR DETERMINING LOCATIONS OF WIRELESS SENSOR NODES BASED ON RADIO FREQUENCY COMMUNICATIONS BETWEEN THE NODES AND VARIOUS RF-ENABLED DEVICES - Systems, apparatuses, and methods for determining locations of wireless nodes in a network architecture are disclosed herein. In one example, a system includes a first wireless node having a wireless device with one or more processing units and RF circuitry for transmitting and receiving communications in the wireless network architecture including a first RF signal having a first packet. A second wireless node having a wireless device with a transmitter and a receiver enables bi-directional communications with the first wireless node in the wireless network architecture including a second RF signal with a second packet. The one or more processing units of the first wireless node are configured to execute instructions to determine a round trip time estimate of the first and second packets, to determine channel state information (CSI) of the first and second wireless nodes, and to calibrate hardware to determine hardware delays of the first and second wireless nodes. | 2020-07-02 |
20200209373 | METHOD AND SYSTEM FOR DETERMINING HORIZONTAL DISTANCE BETWEEN TRANSMITTING POINT AND RECEIVING POINT - The present invention discloses a method and system for determining a horizontal distance between a transmitting point and a receiving point. The method obtains a depth value of the transmitting point and a depth value of the receiving point. An area of a sound velocity profile according to the depth value of the transmitting point and the depth value of the receiving point is then determined. A sound velocity gradient according to the area of the sound velocity profile is also determined. The horizontal distance between the transmitting point and the receiving point according to the sound velocity gradient is then determined by calculations. The present invention eliminates the need to calculate a grazing angle of an eigen sound ray(wave) connecting the transmitting point and the receiving point, by directly converting a propagation time into the horizontal distance, thereby quickly and efficiently calculating the horizontal distance between the transmitting point and the receiving point. | 2020-07-02 |
20200209374 | ULTRA-WIDEBAND-BASED OBJECT IDENTIFICATION - An ultra-wideband-based object identification method and system includes: transmitting, using a transmitter, an ultra wideband signal to an object; receiving, using a receiver, a reflected signal from the object; and determining, using a processor, an identity of the object based on the received reflected signal. | 2020-07-02 |
20200209375 | AERIAL VEHICLE DETECTION SYSTEM - Embodiments described herein are concerned with system for identifying an aerial vehicle. The system comprises: a radar sub-system, the radar sub-system comprising at least one radar connectable to a static support member and a transceiver configured to transmit data indicative of one or more targets identified by the radar within an airspace; a receiver arranged to receive the data indicative of one or more targets identified by the radar; and a processing system configured to process said data, whereby to identify at least one aerial vehicle. In some embodiments the radar comprises a marine radar. | 2020-07-02 |
20200209376 | ESTIMATING METHOD AND ESTIMATING DEVICE - Complex transfer functions indicating characteristics of propagation between transmission antenna elements and N reception antenna elements are calculated from reception signals received by the N reception antenna elements during a predetermined period. Components affected by vital activity are extracted from the calculated complex transfer functions. A correlation matrix is calculated from changed components affected by vital activity. A steering vector for regions divided from a target region is calculated. A living-body signal intensity vector is estimated by performing compressed sensing for an unknown value that is the living-body signal intensity vector using a correlation matrix vector and an extended steering vector. The number of components constituting the living-body signal intensity vector and having a value of at least a predetermined threshold is estimated to be the number of living bodies, and positions of regions corresponding to the components are estimated to be estimated positions of the living bodies. | 2020-07-02 |
20200209377 | POSITION MEASUREMENT DEVICE, POSITION MEASUREMENT METHOD, AND PROGRAM RECORDING MEDIUM - A position measurement device which includes: a storage unit that stores area information for setting a first region along a boundary of the specific area; an area setting unit that acquires the area information from the storage unit and sets the first region on the basis of the acquired area information; and a position measurement unit that acquires the first region from the area setting unit, sets the acquired first region as a verification region, measures the position of the object located in the verification region, and updates the area information stored in the storage unit. | 2020-07-02 |
20200209378 | Coherent Wi-Fi Radar Using Wireless Access Point - A Wireless Local-Area Network (WLAN) access point includes a WLAN transmitter, a WLAN receiver, and a processor. The WLAN transmitter is configured to transmit WLAN packets and to send a timing-synchronization signal. The WLAN receiver is configured to receive echo packets including reflections from an object of the transmitted WLAN packets, to receive the timing-synchronization signal, and to time-synchronize the echo packets and the corresponding WLAN packets. The processor is configured to (a) in response to a gap in the received echo packets, generate one or more synthetic echo packets by interpolating over two or more of the time-synchronized received echo packets, to consequently derive a sequence of equally-spaced echo packets, (b) using the derived sequence of equally-spaced echo packets and the WLAN packets estimate one or more parameters of the object, and (c) output the estimated parameters to a user. | 2020-07-02 |
20200209379 | ESTIMATION METHOD, ESTIMATION DEVICE, AND RECORDING MEDIUM - An estimation method according to the present disclosure includes: extracting, from a plurality of calculated complex transfer functions, living body components respectively corresponding to N reception antenna elements and affected by a living body; calculating a correlation matrix based on the extracted living body components respectively corresponding to the N reception antenna elements; computing one or more eigenvalues of the calculated correlation matrix; estimating a credibility of an estimation result of estimating the position or the direction of a living body in a target space, using the one or more computed eigenvalues and living body count information indicating a value indicating a total number of living bodies in the target space; and estimating the position or the direction of the living body via a predetermined method, based on the correlation matrix, according to the credibility of the estimation result. | 2020-07-02 |
20200209380 | RADAR DEVICE - A transmission antenna section includes a plurality of transmission antennas, and a reception antenna section includes one or more reception antennas. A modulation section causes a continuous wave common signal generated by an oscillation section to be branched into the same number as the transmission antennas, and performs phase shift keying using a different phase rotation amount for each of the plurality of branch signals. Thus, the modulation section generates a plurality of transmission signals inputted into the plurality of transmission antennas. A processing section generates, on the basis of a plurality of signal components, information on an object by which a radiation wave from the transmission antenna section has been reflected, the plurality of signal components being extracted from each of one or more reception signals received by the antenna section and corresponding to the plurality of transmission signals. | 2020-07-02 |
20200209381 | SYSTEMS AND METHODS FOR DOPPLER-ENHANCED RADAR TRACKING - A method for Doppler-enhanced radar tracking includes: receiving a reflected probe signal at a radar array; calculating a target range from the reflected probe signal; calculating a first target angle from the reflected probe signal; calculating a target composite angle from the reflected probe signal; and | 2020-07-02 |
20200209382 | ESTIMATION METHOD, ESTIMATION DEVICE, AND RECORDING MEDIUM - An estimation method for estimating target region information relating to a target region by using an estimation device that estimates information including a position of a living body by using a radio wave includes: acquiring first information relating to lengths of a planar shape of the target region; | 2020-07-02 |
20200209383 | APPARATUS, SYSTEM AND METHOD OF COLLABORATIVE TIME OF ARRIVAL (CTOA) MEASUREMENT - Some demonstrative embodiments include apparatuses systems and/or methods of Collaborative Time of Arrival (CToA). For example, an apparatus may include circuitry and logic configured to cause a CToA broadcasting wireless communication station (STA) (bSTA) to broadcast an announcement frame to announce a ranging-to-self sequence of a CToA measurement protocol; to broadcast a first ranging measurement frame of the ranging-to-self sequence subsequent to the announcement frame; to broadcast a second ranging measurement frame of the ranging-to-self sequence subsequent to the first ranging measurement frame; and to broadcast a Location Measurement Report (LMR) frame of the ranging-to-self sequence subsequent to the second ranging measurement frame, the LMR frame including a Time of Departure (ToD) of the first ranging measurement frame. | 2020-07-02 |
20200209384 | MILLIMETER WAVE SECURITY CHECK GATE - A millimeter wave security check gate is provided, comprising: a gate body; and a top millimeter wave imaging system, comprising: a millimeter wave transceiving antenna array disposed at a top of the gate body, wherein the millimeter wave transceiving antenna array comprises at least one transmitting antenna unit and a plurality of receiving antenna units; and a millimeter wave signal source connected with the millimeter wave transceiving antenna array. | 2020-07-02 |
20200209385 | VEHICLE LAMP - A vehicle lamp includes a lamp chamber, an automatic operation marker lamp unit, and a sensor device. The lamp chamber includes a lamp body and an outer lens, and the automatic operation marker lamp unit and the sensor device are integrated in the lamp chamber. The automatic operation marker lamp unit informs surroundings that a vehicle is being driven automatically, and a sensor device detects information around the vehicle. | 2020-07-02 |
20200209386 | WEATHER RADAR APPARATUS AND SEVERE RAIN PREDICTION METHOD - According to one embodiment, there is provided a weather radar apparatus including means for generating observation data related to a weather phenomenon by processing a radar signal received by an antenna, and information processing means for processing the observation data. The information processing means includes means for executing recognition processing to recognize a rain area which arises as the weather phenomenon, based on the observation data, means for generating threat information for calculating a degree of threat of severe rain to a target point, based on a recognition result of the recognition processing, and means for specifying a predetermined function for calculating the degree of threat, applying the threat information as a parameter to the function, and calculating the degree of threat. | 2020-07-02 |
20200209387 | DISPLAY DEVICE - A display device includes a display panel including a first substrate and a pixel array layer disposed on a first surface of the first substrate, a vibration generator including a sound output unit which vibrates the display panel to output a sound and a first ultrasonic wave output unit which vibrates the display panel to output ultrasonic waves, and a first ultrasonic wave absorbing film overlapping the first ultrasonic wave output unit in a thickness direction of the display panel, where the first ultrasonic wave absorbing film absorbs the ultrasonic waves. | 2020-07-02 |
20200209388 | ULTRASONIC ECHO PROCESSING IN PRESENCE OF DOPPLER SHIFT - An ultrasound detect circuit includes a decimator that decimates a transmit signal to be transmitted through an ultrasonic transducer. The transmit signal is decimated to generate first and second template signals. The decimator uses a different decimation ratio to generate the first template signal than the second template signal. The circuit also includes a first correlator to correlate a signal derived from the ultrasonic transducer with the first template signal, aa second correlator to correlate the signal derived from the ultrasonic transducer with the second template signal, and a Doppler shift determination circuit to determine a Doppler frequency shift based on an output from the first correlator and an output from the second correlator. | 2020-07-02 |
20200209389 | Locating Method and Device, Storage Medium, and Electronic Device - Provided are a locating method and device, a storage medium and an electronic device. The method includes: respectively determining first locating information indicated by a first locating image under a predetermined coordinate system and second locating information indicated by a second locating image under the predetermined coordinate system, wherein the first locating image and the second locating image are locating images acquired in a same scenario in different ways; combining the first locating information and the second locating information to acquire third locating information; locating based on the third locating information. | 2020-07-02 |
20200209390 | OBJECT DETECTION SYSTEMS - Object detection systems are provided herein. An example system includes an enclosure formed by a sidewall to define an interaction volume, at least one light source for illuminating the interaction volume with a light, at least one light sensor that senses disturbances in light intensity due to scattering, reflection, or absorption of the light by objects within the interaction volume, and a controller that is configured to detect an object or object behavior within interaction volume based on the disturbances in the light intensity. The objection detection system may also include a trigger volume and/or a sorting volume. | 2020-07-02 |
20200209391 | AUTOMATIC VEHICULAR SENSOR ADJUSTMENT METHOD AND SYSTEM THEREOF - An automatic vehicular sensor adjustment method includes: a step of installing a vehicular sensor with a posture on a vehicle body, the posture being defined by at least one of a distance, an inclination and a facing angle of the vehicular sensor with respect to the vehicle body, the distance including a height and a position of the vehicular sensor with respect to the vehicle body; a step of, according to an environmental scenario in which the vehicle body encounters, determining whether or not there is an adjustment need, the environmental scenario including a single event or multiple events; and, a step of, according to the adjustment need, adjusting the posture of the vehicular sensor. In addition, an automatic vehicular sensor adjustment system is also provided. | 2020-07-02 |
20200209392 | MULTI FREQUENCY LONG RANGE DISTANCE DETECTION FOR AMPLITUDE MODULATED CONTINUOUS WAVE TIME OF FLIGHT CAMERAS - A time of flight (ToF) system includes a light source, a photosensor, a signal generator and a processor. The signal generator outputs a reference signal corresponding to a modulation function for modulated light and a modified transmitted light signal corresponding to a phase shift of the reference signal. The light source outputs the modified transmitted light signal and pixels in the photosensor receives its reflections off the scene. The reference signal is applied to the pixels and the processor determines a depth map for the scene based on values recorded by the pixels. In some examples, the phase shift is implemented using a phase locked loop controller. One or more component phases of the phase shift and an exposure time for each component phase are determined and output by the phase locked loop controller. | 2020-07-02 |
20200209393 | ELECTRONIC DEVICE AND CONTROL METHOD OF ELECTRONIC DEVICE - An appropriate light emission frequency is set in an electronic device that determines a phase difference between radiation light and reflected light. The electronic device includes a light emission unit, a determination unit, and a setting unit. The light emission unit radiates intermittent light in synchronization with a synchronization signal at a set frequency that is set. The light reception unit generates received light data by receiving reflected light of the intermittent light. The determination unit determines presence or absence of a predetermined object on the basis of the received light data. The setting unit sets, in the light emission unit, as the set frequency, a frequency that is higher, the smaller the distance to the predetermined object, in a case where presence of the predetermined object is determined. | 2020-07-02 |
20200209394 | LASER SCANNER - A laser scanner and a system with a laser scanner for measuring an environment. The laser scanner includes an optical distance measuring device, a support, a beam steering unit rotatably fixed to the support which rotates around a beam axis of rotation. The beam steering unit includes a mirrored surface which deflects radiation used in the optical distance measurement and an angle encoder for recording angle data. The optical distance measurement is performed by a progressive rotation of the beam steering unit about the beam axis of rotation and the continuous emission of a distance measurement radiation, the emission being made through an outlet area arranged in the direction of the mirrored surface on the support, the receiving optics for receiving radiation are arranged on the support, and wherein the outlet area has a lateral offset with respect to the optical axis of the receiving optics. | 2020-07-02 |
20200209395 | SENSOR DEVICE AND MEASUREMENT METHOD - A sensor device measuring a distance to an object includes: a light projection unit repeatedly emitting detection light toward the object; a light reception unit receiving reflected light of the detection light and outputting a binarized light reception signal (RT); a light projection oscillation unit controlling the emission of the detection light and outputting a start signal synchronized with the emission of the detection light; a counter measurement unit starting counting of the RT when receiving the RT and the start signal, and outputting a stop signal corresponding to a feature point of the RT; a delay line measurement unit outputting a delay line output signal corresponding to the delay time of the RT near the feature point of the RT when receiving the RT and the stop signal; and a distance calculation unit calculating the distance to the object based on the delay line output signal. | 2020-07-02 |
20200209396 | Optical Sensing, Non-Tethered Location Monitoring Systems and Methods of Use - Provided is a system for optical sensing. The system may include a linear motor, which may include a first member and a second member. The second member may be movable relative to the first member. At least one optical sensor may be disposed with the first member. A target may be disposed with the second member. The target may include at least one pattern of alternating first areas and second areas. The first areas may include a first color. The second areas may include a second color different than the first areas. The target may be positioned to overlap with an optical path of the at least one optical sensor as the second member moves relative to the first member. A method for optical sensing and a method for making a system for optical sensing are also disclosed. | 2020-07-02 |
20200209397 | 3D LIDAR SENSING UNIT WITH OSCILLATING AXIS OF ROTATION FOR AUTONOMOUS DRIVING - A method and system for sensing objects disposed about a vehicle includes LIDAR sensors in a LIDAR sensing unit mounted above the vehicle. The system includes outputting a plurality of laser beams from lasers while rotating the LIDAR sensing unit and simultaneously oscillating or changing an axis of rotation for the LIDAR sensing unit. The LIDAR sensors receive a reflection of the laser beams and convert optical signals to electrical signals. An electronic processor is configured to determine a presence or absence of objects from the electrical signals and provide a warning indication or control movement of the vehicle in response to detection of objects. The oscillating of the LIDAR sensing unit causes the laser beams to change an angle with respect to horizontal during rotation. The change in oscillation or offset angle for an axis of rotation is accounted for by the electronic processor to map the presence of objects. An autonomous vehicle is controlled based on the sensed objects or a warning is provided. | 2020-07-02 |
20200209398 | DEPTH IMAGING SYSTEM - A depth imaging system includes an optical image sensor, an optical beam steering system, an object identification system, and a depth measurement system. The object identification system is coupled to the optical image sensor. The object identification system is configured to identify an object in an image captured by the optical image sensor. The depth measurement system is coupled to the optical beam steering device. The depth measurement system is configured to, responsive to identification of the object by the object identification system: direct an optical signal, via the optical beam steering device, to the object, and to determine a distance to the object based on a time-of-flight of the optical signal. | 2020-07-02 |
20200209399 | IDENTIFICATION OF SHADOWING ON FLAT-TOP VOLUMETRIC OBJECTS SCANNED BY LASER SCANNING DEVICES - Disclosed are techniques for detecting presence of shadowing introduced in a system. The techniques entail geometrically projecting, along a virtual or actual propagation direction of laser beam scanning, points of a lower convex hull (CH) planar object in a direction toward a higher CH planar object to establish projection locations of the points of the lower CH planar object along the propagation direction. Detection of whether the projection locations are in proximity to locations of points of the higher CH planar object is performed. In response to detecting locations in proximity for each source laser beam scanning, a shadowing event indication is generated to alert a user of the system that shadowing has been introduced in the system. | 2020-07-02 |
20200209400 | Adaptive Control of Ladar Shot Energy Using Spatial Index of Prior Ladar Return Data - Disclosed herein are examples of ladar systems and methods where data about a plurality of ladar returns from prior ladar pulse shots gets stored in a spatial index that associates ladar return data with corresponding locations in a coordinate space to which the ladar return data pertain. This spatial index can then be accessed by a processor to retrieve ladar return data for locations in the coordinate space that are near a range point to be targeted by the ladar system with a new ladar pulse shot. This nearby prior ladar return data can then be analyzed by the ladar system to help define a shot energy for use by the ladar system with respect to the new ladar pulse shot. | 2020-07-02 |
20200209401 | SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, PROGRAM, AND MOBILE OBJECT - According to some embodiments, there is provided a method comprising labeling each of a plurality of subjects in an image with a label, the label for each subject indicating a kind of the subject, wherein the labeling comprises analyzing the image and/or distance measurement points for an area depicted in the image, and determining additional distance information not included in the distance measurement points, wherein determining the additional distance information comprises interpolating and/or generating a distance to a point based at least in part on at least some of the distance measurement points, wherein the at least some of the distance measurement points are selected based at least in part on labels assigned to one or more of the plurality of subjects. | 2020-07-02 |
20200209402 | SYSTEMS AND METHODS FOR ESTIMATING VEHICLE SPEED BASED ON RADAR - Systems, methods, and non-transitory computer-readable media can receive a frame of data generated by a radar system on a vehicle that is associated with an environment at a particular time as detected by the radar system. The frame of data can comprise a plurality of angular positions. Data points included within the frame of data that correspond to the plurality of angular positions can be determined. A fit of a curve having a trigonometric function can be determined to the data points. A speed estimate for the vehicle can be generated based at least in part on the fit of the curve to the data points. | 2020-07-02 |
20200209403 | ELEVATION DETECTION SYSTEM FOR AUTONOMOUS VEHICLES AND A METHOD THEREOF - The present disclosure relates to an elevation detection system for an Autonomous Vehicle (AV) and a method for detecting elevation of surrounding of the AV. The elevation detection system includes an elevation sensor unit and a computation unit. The elevation sensor unit is configured to detect an elevation of a plurality of objects having a lower most elevation, in the surrounding of the AV to determine a boundary elevation of the road. The elevation sensor unit is vertically movable within a range of vertical positions. A Light Detection and Ranging (LIDAR) sensor unit is associated with the elevation sensor unit, to detect the surrounding of the AV, having a predefined Field of View (FoV). The computation unit determines a lower limit value of the FoV and provides it to the LIDAR sensor unit for accurately detecting obstacles in the road. | 2020-07-02 |
20200209404 | SATELLITE SYSTEM FOR NAVIGATION AND/OR GEODESY - The satellite system for navigation and/or geodesy according to the invention is provided with a plurality of MEO satellites, each comprising a dedicated clock, which are arranged in a distributed manner on orbital planes and orbit the Earth, wherein a plurality of MEO satellites, particularly eight, are located in each orbital plane. The satellite system according to the invention is further provided with a plurality of LEO satellites and/or a plurality of ground stations. Each MEO satellite comprises two optical terminals for bidirectional transmission of optical free-beam signals by means of lasers with the respectively first and/or second MEO satellite orbiting ahead in the same orbital plane and with the first and/or second MEO satellite orbiting behind. By means of the optical free-beam signals, the clocks of the MEO satellites are synchronized with each other for each orbital plane at an orbital plane time applicable to this orbital plane. | 2020-07-02 |
20200209405 | FPGA BASED DATA ACQUISITION CARD, DATA ACQUISITION SYSTEM AND DATA ACQUISITION METHOD - The present invention provides an FPGA based data acquisition card, data acquisition system and data acquisition method. The FPGA based data acquisition card comprises: a plurality of bus control modules and a plurality of sensor acquisition modules constructed on an FPGA on the basis of a soft core, the plurality of bus control modules being used to acquire bus data of each of a plurality of bus devices, the plurality of sensor acquisition modules being used to acquire sensor data on a plurality of sensors; and a controller on the FPGA, the controller being used to send the acquired bus data and sensor data to a processing device connected to the data acquisition card. | 2020-07-02 |
20200209406 | Error Correction in GPS Signal - Methods and systems for correcting an error of a GPS signal are provided. The method includes receiving a request for positioning service from a computing device at a location; estimating a Total Electron Content (vTEC) value associated with the location of the object based at least in part on a plurality of vTEC values of a plurality of ground stations equipped with a plurality of GPS receivers, the vTEC value being estimated based on an estimator that is trained using a filter-reweight-retrain robust algorithm; and sending information of the estimated vTEC value to the computing device to allow the computing device to correct an error of a GPS signal received by the computing device, the error of the GPS signal being associated with an ionospheric delay. | 2020-07-02 |
20200209407 | RECOVERY OF HIGH PRECISION POSITION AFTER GNSS OUTAGE - A system and method for estimating a position. In some embodiments, the method includes receiving global navigation satellite system signals from a plurality of global navigation satellite system satellites; receiving a plurality of reference station measurements; receiving external error correction data; generating first position estimates with a Real-Time Kinematic method, based on the global navigation satellite system signals and on the reference station measurements; and generating second position estimates with a Precise Point Positioning method, based on the global navigation satellite system signals, on the external error correction data, and on first position estimates. | 2020-07-02 |
20200209408 | SIGNAL PROCESSING DEVICE FOR X-RAY ANALYSIS AND ADJUSTMENT METHOD FOR A SIGNAL PROCESSING DEVICE FOR X-RAY ANALYSIS - Provided are a signal processing device for X-ray analysis and an adjustment method for a signal processing device for X-ray analysis, which are capable of performing correction of a time constant with high precision and simply and quickly performing adjustment work required for performing the correction. The signal processing device for X-ray analysis includes: a differentiating circuit configured to use a first time constant to convert a signal output from an X-ray detector into an analog differential wave; an AD converter configured to convert the analog differential wave into a digital differential wave; a waveform shaping digital filter configured to use a second time constant to shape the digital differential wave; and a histogram generation unit configured to acquire a feature value of a shaped waveform based on pulse heights in two regions of the shaped waveform, to generate a histogram representing an acquisition frequency for each feature value. | 2020-07-02 |
20200209409 | TIME SYNCHRONIZATION SYSTEM, METHOD OF CONTROLLING TIME SYNCHRONIZATION SYSTEM, AND RADIATION IMAGING SYSTEM - A time synchronization system includes at least one time server and a plurality of time clients connected to each other via a network. The time client comprises: a communication unit configured to obtain time information of the time server by transmitting/receiving messages to/from the time server; and a time count control unit configured to synchronize time information of an internal timepiece with time information of the time server. The time count control unit controls transmission of the messages by adjusting transmission intervals of the messages to irregular intervals. | 2020-07-02 |
20200209410 | RADIATION MEASURING INSTRUMENT AND RADIATION IMAGING APPARATUS - The radiation measuring instrument is configured such that a control unit ( | 2020-07-02 |
20200209411 | IMAGE FUSION IN MULTI-LAYER FLAT PANEL IMAGER - An imaging apparatus includes: a first scintillator layer configured to provide first image signals with a first quantum efficiency and a first spatial resolution; a second scintillator layer configured to provide second image signals with a second quantum efficiency and a second spatial resolution, wherein the first quantum efficiency is lower than the second quantum efficiency, but the first spatial resolution is higher than the second spatial resolution; and an image combiner configured to combine the first image signals and the second image signals. | 2020-07-02 |
20200209412 | RADIATION DETECTOR AND RADIATION DETECTING SYSTEM - A radiation detector ( | 2020-07-02 |
20200209413 | DIGITAL X-RAY DETECTOR - The present disclosure relates to a digital X-ray detector, which includes a base substrate; a metal layer disposed on a bottom face of the base substrate; an elements-array disposed on a top face of the base substrate; a ground electrode disposed on a top face of the base substrate and electrically connected to the elements-array; a scintillator layer disposed on the elements-array; and a reflective plate disposed on the scintillator layer. Thus, a static-electricity discharge path along which static-electricity from the reflective plate moves through the ground electrode to the metal layer may be secured. This may increase or maximize an effective ground region, such that the static-electricity generated from the top and bottom of the digital X-ray detector can be more efficiently discharged out. | 2020-07-02 |
20200209414 | APPARATUS FOR RADIATION DETECTION - An apparatus for electro-magnetic wave detection is disclosed. The apparatus comprises a two-dimensional perovskite having a polaronic emission Stokes' shifted by at least 50 nm to minimise loss due to re-absorption. | 2020-07-02 |
20200209415 | DEPTH CORRECTION IN PIXELLATED DETECTORS OF IONIZING RADIATION - The disclosure relates to spectroscopic sensors of ionizing radiation, and the use of an application specific integrated circuit to detect both positive features in a pixel anode signal indicative of ionizing radiation interacting with that pixel, and negative features indicative of ionizing radiation interacting in an adjacent or proximal pixel. For this purpose, both positive and negative peak hold circuits may be provided in each ASIC pixel circuit. | 2020-07-02 |
20200209416 | DIGITAL X-RAY DETECTOR AND METHOD FOR DRIVING THE SAME - A digital X-ray detector comprises a pixel array including a plurality of pixel regions; and a data line; and a read-out driver connected to the data line, wherein each pixel region includes a photo-sensing element and a pixel switch disposed between the photo-sensing element and the data line, wherein the read-out driver includes: an amplification unit connected to each data line; a first association signal detector connected to an output of the amplification unit and detecting a first association signal corresponding to an offset of the amplification unit; a second association signal detector connected to the output of the amplification unit and detecting a second association signal including an output signal of the photo-sensing element; and a third association signal detector connected to the output of the amplification unit and detecting a third association signal corresponding to an offset of the pixel region. | 2020-07-02 |
20200209417 | METHOD AND SYSTEM FOR DISTRIBUTED ACOUSTIC SENSING IN A MARINE ENVIRONMENT - The present invention relates to a system for distributed acoustic sensing in a marine environment surrounding a repeater along a fibre-optic submarine communications cable. The system comprises at least one distributed acoustic sensing (DAS) unit. Each DAS unit further comprises a light source that is configured to transmit outgoing light in at least one fibre-optic sensing cable that is located in the marine environment and a receiver configured to receive reflected light that includes at least one optical property influenced by an acoustic disturbance in the marine environment. Each DAS unit further comprises an optical multiplexer for multiplexing optical signals onto the fibre-optic submarine communications cable via the repeater where the optical signals carry information on the at least influenced optical property. A method for distributed acoustic sensing in the marine environment is also disclosed. | 2020-07-02 |
20200209418 | Method and Apparatus for Active Seismic Shear Wave Monitoring of Hydro-Fracturing of Oil and Gas Reservoirs Using Arrays of Multi-Component Sensors and Controlled Seismic Sources - Disclosed herein are various embodiments of a technique to monitor hydro-fracturing in oil and gas wells by use of active seismic sources and arrays of monitoring sensors. The invention utilizes combinations of seismic sources such as vertical vibrators in anti-phase pairs. The invention utilizes combinations of multi-component rotational seismic sensors, and/or multi-component linear sensors, and/or pressure sensors. Sensors are jointly deployed in arrays on the surface and/or in shallow monitoring wells to avoid the complicating effects of the free surface of the earth. The emplacement of sensors on the surface or in the shallow monitoring wells may be permanent. Fractures are monitored by combinations of physical effects such as propagation time delays, shear reflections, birefringent shear wave splitting, and amplitude variations. The method has a wide range of application in oil and gas exploration and production. This abstract is not intended to be used to interpret or limit the claims of this invention. | 2020-07-02 |
20200209419 | METHOD AND DEVICE FOR ENHANCED SEISMIC IMAGING BASED ON ONE-WAY WAVE EQUATION - A method for seismic processing includes steps of receiving seismic data comprising seismic waveforms acquired from a plurality of seismic receivers and a plurality of seismic sources in a subterranean area; generating a plurality of full wavefields at a plurality of corresponding propagation time steps based on a seismic velocity and a density model of the subterranean area; and applying a wavefield filter to the plurality of full wavefields to obtain a plurality of filtered wavefields. Each of the plurality of full wavefields propagates in all directions. On the other hand, each of the plurality of filtered wavefields is attenuated in or opposite to a target direction. The target direction is selected by the user. | 2020-07-02 |
20200209420 | Magnetic field sensor for an access point - A device may monitor an entry to or exit from a space via an access point. The entry access point has a first component and a second component that are separable from each other to create an opening for the entry or exit. The device may comprise a first part for mounting to one of said components and which has a processing component and a sensing component for sensing in multiple dimensions a magnetic field emanating from a second part mounted on the other of the first and second components. The processing component is configured: to receive an indication of the sensed magnetic field; detect a change of condition at the access point when a dynamic quality of the indication of the sensed magnetic field satisfies a predefined criterion; and output an indication of the detected change of condition. There may be a corresponding system, method and memory. | 2020-07-02 |
20200209421 | SYSTEMS AND METHODS FOR DETECTING A PROPPANT IN A WELLBORE - A method includes acquiring a first set of data before a proppant is pumped into a wellbore. The method also includes acquiring a second set of data after the proppant is pumped into the wellbore. The method also includes determining a weighted average median of the first set of data and of the second set of data. The method also includes determining a location of the proppant in a subterranean formation based at least partially upon the weighted average medians. | 2020-07-02 |
20200209422 | MANAGING VEHICLE MOVEMENT IN AISLES BY USE OF MAGNETIC VECTORS - Proximity detection systems and proximity detections methods are disclosed herein. In one aspect of the disclosure the systems and methods include measuring and analyzing the vector components of a generated magnetic field. In another aspect of the present disclosure, the results of the vector component measurements are used to take safety actions which may result in an alert to an operator or pedestrian, and/or automatic action by a vehicle or machine. | 2020-07-02 |
20200209423 | METHOD AND CIRCUIT FOR DETECTING MEDIA AT DIFFERENT DEPTHS - The method comprises the steps of: first, providing a sensor, the sensor consisting of a group of PCB copper foils; second, providing a depth detection signal Ftest which can change the detection frequency along with the change in detection depth, and applying the depth detection signal Ftest to the big and small polar plates of the sensor in the step S | 2020-07-02 |
20200209424 | METHOD AND DEVICE FOR IDENTIFYING MICROFACIES OF LIMESTONE SHOAL - Embodiments of the present invention provide a method and device for identifying microfacies of a limestone shoal. The method includes: establishing identification charts of different microfacies of a limestone shoal according to core and thin section data, constructing natural gamma-ray (GR) response templates of different microfacies of a limestone shoal of a standard drilled well, and standardizing a GR curve of a non-standard drilled well according to a GR curve of the limestone shoal of the standard drilled well; comparing the standardized GR curve of the non-standard drilled well with the GR response template of the standard drilled well to divide microfacies of a limestone shoal of the non-standard drilled well. | 2020-07-02 |
20200209425 | Deconvolution-Based Enhancement of Apparent Resistivity and Bed Boundary Identification in Borehole Resistivity Imaging - A method and system for locating one or more bed boundaries. A method for locating one or more bed boundaries may include disposing a downhole tool into a wellbore, measuring wellbore wall resistivity with the downhole tool, extracting a vertical voltage measurement, deconvolving the vertical voltage measurement with an impulse response an apparent resistivity, and calculating a derivative of the apparent resistivity and finding one or more peaks of the derivative to determine the locations of the one or more bed boundaries. A well measurement system for locating one or more bed boundaries may include a downhole tool. The downhole tool may include a pad, an arm, a receiver disposed on the pad, and a transmitter disposed on the pad. The well measurement system may further comprise a conveyance and an information handling system | 2020-07-02 |
20200209426 | DOWNHOLE, REAL-TIME DETERMINATION OF RELATIVE PERMEABILITY WITH NUCLEAR MAGNETIC RESONANCE AND FORMATION TESTING MEASUREMENTS - A method and system for downhole, real-time determination of relative permeability with nuclear magnetic resonance and formation testing measurements is provided. The method includes introducing a nuclear magnetic (NMR) tool and a formation testing tool into a well bore penetrating a subterranean formation. The method also includes measuring a saturation of a fluid in the subterranean formation from the NMR tool, measuring a mobility of the fluid from the formation testing tool, and measuring a viscosity of the fluid. The method includes calculating a relative permeability of the subterranean formation based on the measured saturation, the measured viscosity and the measured mobility. The method also includes providing a reservoir production prediction metric based on the calculated relative permeability of the subterranean formation for facilitating a well completion operation in the wellbore. | 2020-07-02 |
20200209427 | SYSTEM AND METHOD FOR ACQUIRING AND INVERTING SPARSE-FREQUENCY DATA - A method of imaging an object includes generating a plurality of mono-frequency waveforms and applying the plurality of mono-frequency waveforms to the object to be modeled. In addition, sparse mono-frequency data is recorded in response to the plurality of mono-frequency waveforms applied to the object to be modeled. The sparse mono-frequency data is cross-correlated with one or more source functions each having a frequency approximately equal to each of the plurality of mono-frequency waveforms to obtain monochromatic frequency data. The monochromatic frequency data is utilized in an inversion to converge a model to a minimum value. | 2020-07-02 |
20200209428 | REAL-TIME RESERVOIR SURVEILLANCE-MANAGEMENT SYSTEM - A system and method of monitoring a field includes obtaining field data for an injector well coupled to a reservoir; obtaining a model comprising representations of at least one of the wells and/or the reservoir; updating the model with the field data for the injector well; and assessing a status (e.g., injector health assessment) of the injector well based on the field data and the model. A system and method of reservoir management includes solving an optimization problem based on unconstrained injection allocation target rates for one or more injector wells and weightings dependent upon relative travel times between injector-producer well pairs, each injector-producer well pairs comprising one of the injector wells; determining injection allocation targets based on the solution of the optimization problem; designing a production optimization strategy based on the injection allocation targets. | 2020-07-02 |
20200209429 | REAL-TIME METOCEAN SENSOR ARRAYS - A real-time metocean sensor array system may include a one or more floating instruments each including geolocation capabilities and connected to a satellite communication network. In some examples, the floating instruments may further include an omnidirectional hydrophone. Motion and acoustical data gathered by the instruments may be converted by onboard processing logic into wave, current, and/or wind-related observations that may be communicated in real time and analyzed via a cloud-based system. | 2020-07-02 |
20200209430 | SYSTEMS AND METHODS DISTRIBUTED-SOLAR POWER FORECASTING USING PARAMETER REGULARIZATION - An example method comprises receiving first historical meso-scale numerical weather predictions (NWP) and power flow information for a geographic distribution area, correcting for overfitting of the historical NWP predictions, reducing parameters in the first historical NWP predictions, training first power flow models using the first reduced, corrected historical NWP predictions and the historical power flow information for all or parts of the first geographic distribution area, receiving current NWP predictions for the first geographic distribution area, applying any number of first power flow models to the current NWP predictions to generate any number of power flow predictions, comparing one or more of the any number of power flow predictions to one or more first thresholds to determine significance of reverse power flows, and generating a first report including at least one prediction of the reverse power flow and identifying the first geographic distribution area. | 2020-07-02 |
20200209431 | LIGHTNING STRIKE ALARM SYSTEM USING BIPOLAR CONVENTIONAL AIR TERMINAL - A lightning strike alarm system using a Bipolar Conventional Air Terminal (BCAT) is provided. The lightning strike alarm system using BCAT including a rod element to which a ground charge is electrified and an electrification plate-cone or an electrification plate-tube electrified by a thunderstorm cloud, includes a luminescence unit to be electrically connected to the rod element and the electrification plate-cone or the electrification plate-tube and emits light by electric energy electrified to the electrification plate-cone or the electrification plate-tube by the thunderstorm cloud. The lightning strike alarm system enables a user to find that an impulse current of the thunderstorm is normally and safely flown to the ground, and thus, the user may have psychological security. | 2020-07-02 |
20200209432 | RECONFIGURABLE META-MATERIAL SYSTEMS - One embodiment can provide a meta-material system. The meta-material system can include a host system and an inclusion system embedded within the host system. At least one effective physical property of the meta-material system is modulated by an external stimulation, thereby facilitating the meta-material system to self-regulating an external perturbation. | 2020-07-02 |
20200209433 | LAMINATED FILM AND METHOD FOR PRODUCING LAMINATED FILM - In a laminated film, a resin substrate, an organic/inorganic multilayer, and a silver-containing metal layer having a thickness of 20 nm or less are laminated in this order, an anchor metal diffusion control layer having a Hamaker constant of 7.3×10 | 2020-07-02 |
20200209434 | OPTICAL ELEMENT AND PROJECTION LENS - An optical element includes: an optical element substrate; and an antireflective film on the optical element substrate. The antireflective film has a structure in which, in order from an air side of the anti-reflection film, a SiO | 2020-07-02 |
20200209435 | COMPOSITE FILM WITH ANTI-REFLECTIVE COATING - A composite film may include a first transparent substrate and a first anti-reflective coating overlying a first surface of the first transparent substrate. The first anti-reflective coating may include fluorothermoplastic material and an acrylated polydimethylsiloxane. The composite film may further have a VLT of at least about 93.0% and a haze value of not greater than about 2.0%. | 2020-07-02 |
20200209436 | ANTIREFLECTION FILM, OPTICAL ELEMENT, AND OPTICAL SYSTEM - An antireflection film is provided on a substrate and includes an interlayer, a silver-containing metal layer containing silver, and a dielectric layer, which are laminated in this order on a side of a substrate, in which the interlayer is a multilayer film having at least two layers in which a layer of high refractive index having a relatively high refractive index and a layer of lower refractive index having a relatively low refractive index are alternately laminated, the dielectric layer has a surface exposed to air, and the dielectric layer is a multilayer film including a silicon-containing oxide layer, a magnesium fluoride layer, and an adhesion layer provided between the silicon-containing oxide layer and the magnesium fluoride layer and configured to increase adhesiveness between the silicon-containing oxide layer and the magnesium fluoride layer. | 2020-07-02 |
20200209437 | GLASS LENS AND LENS MODULE - The present invention provides a glass lens for a lens module. The glass lens includes an optical portion having an optical axis, and an extending portion surrounding a periphery of the optical portion. The optical portion includes an object-side surface and an image-side surface opposite to the object-side surface, and the extending portion includes a first extending surface extending from the object-side surface towards a direction far away from the optical axis and a second extending surface extending from the image-side surface towards the direction far away from the optical axis. The first extending surface and the second extending surface are respectively provided with a first recess and a second recess filled with a black substance, and the second recess is closer to the optical axis with respect to the first recess. | 2020-07-02 |
20200209438 | OPTICAL COMPONENT AND METHOD FOR MANUFACTURING SAME - Provided is an optical component whereby the absence of eccentricity can be instantly confirmed visually even in a case that the optical component has Fresnel lens or other very fine structure. An optical component of the present invention includes an optical part and a peripheral part thereof. The optical component includes recognition marks in positions substantially plane-symmetrical to each other on a front surface side and a rear surface side of the peripheral part, the recognition marks being expressed as a recess or a projection and configured to allow eccentricity to be recognized. Two of the recognition marks are preferably similar to each other in shape, one recognition mark being preferably from 10% to 90% the size of the other recognition mark. | 2020-07-02 |
20200209439 | OPTICAL SYSTEM - An optical system is provided and includes a fixed assembly, a movable element and a driving module. The fixed assembly has a main axis. The movable element is movable relative to the fixed assembly and has a surface facing a first optical element. The driving module is configured to drive the movable element to move relative to the fixed assembly. | 2020-07-02 |
20200209440 | CAMERA LENS AND ELECTRONIC DEVICE HAVING IMAGE SHOOTING FUNCTION - The present invention provides a camera lens and an electronic device having image shooting function, wherein the camera lens includes a lens barrel, a first lens, a second lens and a first light shielding sheet. The first lens, the first light shielding sheet and the second lens are stacked in the lens barrel in sequence from an object side to an image side, the lens barrel has a first annular inclined surface surrounding a periphery of the first light shielding sheet, the first annular inclined surface is provided with a glue layer, and an outer edge of the first light shielding sheet is adhered to the glue layer. | 2020-07-02 |