Abstract: A test device to localize a partial discharge in or at an electrical component may include at least one antenna to capture an electromagnetic wave caused by a partial discharge in the electrical component. The test device includes multiple microphones arranged in an environment around the electrical component. The microphones capture sound waves caused by the partial discharge. It is examined if an intensity of the electromagnetic wave exceeds a first limit value and/or the intensity of the sound wave captured by one of the multiple microphones exceeds a second limit value. Depending on the captured sound wave and/or the electromagnetic wave and on the examination relating to the first and/or second limit value, a location of the partial discharge can be determined.

Abstract: The technology relates to determining a source of a horn honk or other noise in an environment around one or more self-driving vehicles. Aspects of the technology leverage real-time information from a group of self-driving vehicles regarding received acoustical information. The location and pose of each self-driving vehicle in the group, along with the precise arrangement of acoustical sensors on each vehicle, can be used to triangulate or otherwise identify the actual location in the environment for the origin of the horn honk or other sound. Other sensor information, map data, and additional data can be used narrow down or refine the location of a likely noise source. Once the location and source of the noise is known, each self-driving vehicle can use that information to modify current driving operations and/or use it as part of a reinforcement learning approach for future driving situations.

Abstract: A direction-of-arrival estimation device for achieving direction-of-arrival estimation which is robust against an SNR and in which an application range of a learning model is specific is provided.

Abstract: Touch control surfaces for electronic user devices are disclosed herein. An example electronic device includes a microphone array and processor circuitry to detect a first acoustic event based on signals output by the microphone array, the first acoustic event indicative of a first touch on a surface of the device at a first time; detect a second acoustic event based on the signals, the second acoustic event indicative of a second touch on the surface at a second time; determine a first location of the first touch and a second location of the second touch; identify the first time and the second time as occurring within a threshold period of time; identify a gesture based on the first location, the second location, and the occurrence of the first touch and the second touch within the threshold; and cause an output at the device in response to the gesture.

Abstract: A remote commander (RC) for a TV or other entertainment system component has a microphone. A device can query the RC for its serial number, access the Internet with the serial number to look up characteristics of the microphone, and then knowing the characteristics, use the RC microphone to detect sound such as speaker test chirps to calibrate an audio system in a convenient and user-friendly manner while achieving the accuracy of calibration that can only be obtained by using a calibrated microphone system.

Abstract: An embodiment of the present invention provides, comprising: a communication unit configured to communicate with a plurality of external AI apparatuses; and a processor configured to receive sound signals of the user from the plurality of external AI apparatuses, calculate a distance and a variation of the distance from each of the plurality of external AI apparatuses to the user based on the received sound signals, determine a current path of the user based on the calculated distance and the calculated variation of the distance, and determine a future path of the user based on the current path.

Abstract: Three-dimensional image calibration and presentation for eyewear including a pair of image capture devices is described. Calibration and presentation includes obtaining a calibration offset to accommodate flexure in the support structure for the eyewear, adjusting a three-dimensional rendering offset by the obtained calibration offset, and presenting the stereoscopic images using the three-dimension rendering offset.

Abstract: The satellite image processing method includes: acquiring a first target satellite image; defogging the first target satellite image through a first neural network to acquire a first satellite image; and adjusting an image quality parameter of the first satellite image through a second neural network to acquire a second satellite image.

Abstract: An emergency response system (ERS) configured to acquire equipment location data, target terminal location data, and emergency responder terminal location data; determine a horizontal distance measure between the emergency responder terminal and a select unit of equipment, determine a vertical distance measure between the emergency responder terminal and a select unit of equipment, engage a camera component of the emergency responder terminal to capture images of at least a portion of the surrounding real-world scene, providing such images for display on the touchscreen display of the emergency responder terminal, and/or providing an equipment display object for display on the touchscreen of the emergency responder terminal such that, when an image provided for display spans a region of the real-world scene within which the equipment is located, the equipment display object dynamically overlays a segment of the image associated with the acquired equipment location data.

Abstract: Systems and methods of estimating a location of a mobile computing device are provided. For instance, acoustic signals can be received from one or more transmitting devices associated with a real-time locating system. A set of peaks can be selected from the received acoustic signals. A first set of transmitter locations can be assigned to the selected set of peaks. The first set of transmitter locations can be specified by an acoustic model specifying a plurality of transmitter locations within an acoustic environment in which the one or more transmitting devices are located. A first model path trace associated with the first set of transmitter locations can be compared to the received acoustic signals. A location of the mobile computing device can be estimated based at least in part on the comparison.

Abstract: A method for underwater acoustic communication includes steps of S1: capturing a synchronization signal using a cross-correlation operation; S2: performing time forward shifting and reversing processing and time backward shifting and reversing processing, respectively, on the synchronization signal to obtain a forward shifted time reversal coefficient and a backward shifted time reversal coefficient; S3: performing a convolution operation of the forward shifted time reversal coefficient and the backward shifted time reversal coefficient, respectively, with a subsequently captured information sequence to obtain a forward shifted time reversal output and a backward shifted time reversal output; S4: processing the forward shifted time reversal output and the backward shifted time reversal output, respectively, with a forward shift equalizer and a backward shift equalizer to obtain two sets of equalizer outputs; and S5: selecting one of the two sets of equalizer outputs with a smaller error for data decoding to o

Abstract: An object detection device includes a first sensor, a second sensor, a calculation range selector and an estimator. The first sensor outputs a radio frequency (RF) signal, receives a reflected RF signal reflected from an object, and obtains a first measurement value for the object based on a received reflected RF signal. The second sensor obtains a second measurement value for the object by sensing a physical characteristic from the object. The physical characteristic sensed by the second sensor is different from a characteristic of the object measured as the first measurement value obtained by the first sensor. The calculation range selector sets a first reference range based on the second measurement value. The first reference range represents a range of execution of a first calculation for detecting a position of the object using a first algorithm.

Abstract: An estimator of direction of arrival (DOA) of speech from a far-field talker to a device in the presence of room reverberation and directional noise includes audio inputs received from multiple microphones and one or more beamformer outputs generated by processing the microphone inputs. A first DOA estimate is obtained by performing generalized cross-correlation between two or more of the microphone inputs. A second DOA estimate is obtained by performing generalized cross-correlation between one of the one or more beamformer outputs and one or more of: the microphone inputs and other of the one or more beamformer outputs. A selector selects the first or second DOA estimate based on an SNR estimate at the microphone inputs and a noise reduction amount estimate at the beamformer outputs. The SNR and noise reduction estimates may be obtained based on the detection of a keyword spoken by a desired talker.

Abstract: According to one embodiment, a vehicle guidance device is to be installed in a vehicle for providing path guidance to the vehicle. The device includes a plurality of receivers that receives a ranging information signal via a ultrasonic-wave ranging sensor, the ranging information signal including an ultrasonic-wave ranging signal on which path guidance information is superimposed, the ultrasonic-wave ranging signal being for measuring a distance to an object; an information extractor that extracts, for each of the receivers, the path guidance information from the ranging information signal; and a path guide that provides the path guidance on the basis of a distance corresponding to the ultrasonic-wave ranging signal and the path guidance information.

Abstract: An ultrasonic device includes: a vibration film provided with a vibration region that is vibratable by a vibration element; and a damper layer that is provided to cover the vibration region of the vibration film. The damper layer has a thickness dimension of 13 ?m or larger and 25 ?m or smaller.

Abstract: During operation a first personal-area network will activate a first camera. The first camera may be manually activated, or triggered by an audio signal. The event that causes the first camera to activate will also cause the personal-area network to send an acoustic signature to other personal-area networks. Personal-area networks that receive the acoustic signature will modify audio triggers so that the acoustic signature can be better distinguished from other noises.

Abstract: A nonlinear control system and a speaker protection system are disclosed. In particular, a control system for adapting an audio output from a speaker in the proximity of an object is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. A speaker protection system and a quality control system are disclosed. More particularly, a system for clamping the input to a speaker dependent upon an estimate of the proximity, acoustic volume, and/or acoustic coupling of the speaker to a nearby object is disclosed.

Abstract: Disclosed is a method and system for diffraction-aware non-line of sight (NLOS) sound source localization (SSL) that may reconstruct an indoor space, may generate acoustic rays into the indoor space based on an audio signal collected from the indoor space, and may estimate a position of an NLOS sound source based on a point at which one of the acoustic rays is diffracted.

Abstract: Systems and method are disclosed for facilitating efficient calibration of filters for correcting room and/or speaker-based distortion and/or binaural imbalances in audio reproduction, and/or for producing three-dimensional sound in stereo system environments. According to some embodiments, using a portable device such as a smartphone or tablet, a user can calibrate speakers by initiating playback of a test signal, detecting playback of the test signal with the portable device's microphone, and repeating this process for a number of speakers and/or device positions (e.g., next to each of the user's ears). A comparison can be made between the test signal and the detected signal, and this can be used to more precisely calibrate rendering of future signals by the speakers.

Abstract: Provided herein are systems and methods for real time processing of signals from an array of transducers for detecting transient elastic waves originating from unknown locations in a body, which may propagate in a dispersive fashion. The systems and methods allow real time combination and analysis of signals, including decisions regarding storage as new data is received. The methods described herein include designing arrays of detectors and methods for processing signals in real time given the constraints of the body under test determining whether to store the set of information while a new set of information is received for processing within a real time environment. The methods described herein include methods which result in the determination or small time shifts which place all signals into a coherent time base which are then combined achieving a composite waveform that possesses an increased signal-to-noise ratio over any single element.

Abstract: An acoustic system and method detect and locate low intensity and low frequency sound sources in an investigation area. An acoustic system is effective in identifying survivors trapped under rubble following a catastrophic event. The acoustic system focuses on the low frequency components of the human voice and includes acoustic sensors for detecting acoustic signals generated by the sound sources and for generating data representative of the acoustic signals. A wireless transmitter transmits the data representative of the detected acoustic signals to an electronic receiver block that receives and analyzes the data. A processor executes calibration of the acoustic sensors of the suite to temporally align each signal received from the acoustic sensors, and executes a digital beamforming to combine the data representative of the detected acoustic signals and to create an acoustic image of the investigation area to locate the low intensity and low frequency sound sources.

Abstract: The present disclosure provides an RSS (Received Signal Strength) signal correction method for performing location measurement by utilizing information among a plurality of nodes, and the RSS signal correction method estimates a variable of an RSS signal model based on at least one of location information of a fixed node, location information of an unknown node and measurement noise information of the unknown node.

Abstract: A received signal DOA estimation method using generation of virtual received signals includes: generating a preset number of virtual antennas at preset positions of a plurality of actual antennas; generating received signals received from the virtual antennas; and generating a DOA estimation value through a DOA estimation algorithm using the received signals received from the virtual antennas and the received signals received from the actual antennas.

Abstract: A determination of a spatial position of a transmitter which emits a wireless signal is provided. A receiver which moves relative to the transmitter receives the wireless signal and analyses a Doppler shift in the received signal. Information is generated for specifying possible spatial positions of the transmitter based on a point of time when a sign in the Doppler shift changes. In this way, a very simple and efficient determination of possible locations of the transmitter can be achieved.

Abstract: At least some embodiments of the present disclosure relate to a semiconductor device package. The semiconductor device package includes a substrate with a first groove and a semiconductor device. The first groove has a first portion, a second portion, and a third portion, and the second portion is between the first portion and the third portion. The semiconductor device includes a membrane and is disposed on the second portion of the first groove. The semiconductor device has a first surface adjacent to the substrate and opposite to the membrane. The membrane is exposed by the first surface.

Abstract: There is provided a navigation system, comprising: a buoy on a water surface movably anchored to a bottom; a plurality of at least three transmitters fixed to the bottom or at different positions in the water for transmitting signals to specify the positions; a receiver, being disposed with the buoy, configured to receive signals transmitted by the plurality of transmitters; a signal processor, being disposed with the buoy, configured to specify the position of the buoy, based on the signals received by the receiver, and generate a navigation signal indicating the position of the buoy, and a radio, being disposed with the buoy, configured to transmit the navigation signal generated in the signal processor wirelessly, the navigation signal being receivable by a radio in a mobile body.

Abstract: According to an embodiment, a display control system includes a recognizer, a calculator, and a display controller. The recognizer is configured to recognize sound generated from a sound source. The calculator is configured to calculate a first direction of the sound source from a position of a user based at least in part on the recognized sound. The display controller is configured to cause a display to output display information that visually expresses the sound in a first display format determined based at least in part on an angle between a second direction in which the user faces and the first direction of the sound source.

Abstract: Provided are mechanisms and processes for directional signal fencing for medical schedule management. According to various examples, a system is provided which comprises a first sensor module, which includes a directional transceiver configured to transmit a first wireless signal directed toward a location within a medical examination room such that the location is within a first coverage area. A second sensor module includes a directional transceiver configured to transmit a second wireless signal directed toward the location such that the location is within a second coverage area. The first and second coverage areas overlap at a signal overlap area, which surrounds the location. The first and second sensor modules connect to a device corresponding to a physician within the signal overlap area. The duration of the connection between the device and the sensor modules is used to track the presence of the physician in the medical examination room.

Abstract: The invention allows vessel monitoring based on directionally captured ambient sounds. A remote operation centre for monitoring a vessel comprises a set of speakers and a controller. The controller comprises an input unit configured to receive at least one microphone signal from at least one on-board directional microphone of an array of on-board directional microphones. The controller further comprises a processing unit configured to analyze the received at least one microphone signal and to generate speaker-specific directional output signals based on the analysis. The controller further comprises an output unit configured to send the generated speaker-specific directional output signals to respective one or more speakers of the set of speakers.

Abstract: A method for processing audible sounds using ultrasonic sensors. The method includes passively monitoring, via ultrasonic sensors, an external environment for a audible sounds. An audible sound may be detected and used to produce a sound signal. The sound signal may be filtered to determine one or more features corresponding thereto, including a class, a position, and a velocity. A priority may be assigned to the sound signal based on the sound signal to determine an appropriate response. A corresponding system and computer program product are also disclosed and claimed herein.

Abstract: Disclosed is an electronic device including a first circuit for measuring positions using a first positioning method; a second circuit for measuring positions using a second positioning method; a memory for storing information on a service zone; and a processor is configured to identify a first position using the first circuit; determine whether the first position is included in the service zone; identify a second position using the second circuit when the first position is included in the service zone; and determine the second position to be a position of the electronic device.

Abstract: Multiple independently movable devices are located upon a platform. On the platform is a directional microphone array. Each of the movable devices is assigned a unique audio signature, which may be a pulse train of chirps or a pseudo random signal or some other audio sequence that is unique to the respective device. Each movable device announces itself with its unique audio signature, and the platform's directional microphone system determines the location from which the unique audio signature comes from. For range, a difference between the time of flight (TOF) of the light relative to the sound signature is used. As another technique a unique audio signature may be an audio water mark concealed in normal audio which may be emitted by the movable device. The watermark provides the identifying information of each movable device.

Abstract: A wireless receiving device includes a signal measurement unit; a weighting factor generation unit that generates weighting factors each for suppression of the received signals, based on measurement results of the received signals; interference suppression units that each perform, in a parallel manner, interference suppression processing on the received signals, using, one of the weighting factors; arrival detection units that are connected in one-to-one to the interference suppression units, the arrival detection units each detecting arrival of a desired signal; an arrival determination unit that determines whether the desired signal has arrived; and a demodulation processing unit that demodulates the received signals when the arrival determination unit determines that the desired signal has arrived.

Abstract: Systems and methods of performing a seismic survey in a marine environment are provided. The system includes a seismic data acquisition unit disposed on a seabed in the marine environment. The seismic data acquisition unit includes a local pressure sensor, an optical transmitter and an optical receiver to determine one or more pressure values. The system includes an extraction vehicle including a reference pressure sensor, an optical transmitter, and an optical receiver to establish an optical communications link with the seismic data acquisition unit, and generate reference pressure data. The system includes at least one of the local pressure sensor and the one or more pressure values calibrated based on the reference pressure data generated by the extraction vehicle.

Abstract: Various embodiments associated with signal conversion while underwater are described. A source can transmit an alternating current signal with a relatively high frequency over a relatively long distance. The alternating current signal with the relatively high frequency can be converted to an alternating current signal with a relatively low frequency. An example of this conversion can be done by converting the alternating current signal with the relatively high frequency into a direct current signal. The direct current signal can then be converted into the alternating current signal with the relatively low frequency. The alternating current signal with the relatively low frequency can be transmitted from a transmission coil to a pick-up coil. After reception by the pick-up coil the alternating current signal with the relatively low frequency can be processed, such as processed to determine a direction of the source of the alternating current signal with the relatively high frequency.

Abstract: Techniques are disclosed for tracking location data among a plurality of communication devices communicable with a communication server. A plurality of communication devices may be linked into a group. The communication server may receive location data for each of the plurality of communication devices and calculate a distance and heading data between each of the plurality of communication devices. This data may be distributed to each of the plurality of communication devices in the group. A first communication device in the group may include a ring of light emitting diodes (LEDs), a microphone, and a speaker but lack a display screen. The first communication device may receive the location, distance, and heading data from the communication server while also determining its own orientation via a magnometer. The first communication device may calculate a heading offset between its orientation and a second communication device.

Abstract: A nonlinear control system and a speaker protection system are disclosed. In particular, a control system for adapting an audio output from a speaker in the proximity of an object is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. A speaker protection system and a quality control system are disclosed. More particularly, a system for clamping the input to a speaker dependent upon an estimate of the proximity, acoustic volume, and/or acoustic coupling of the speaker to a nearby object is disclosed.

Abstract: Disclosed is a method for locating a portable device giving “hands free” access to a vehicle, by a location device intended to be installed in the vehicle, the portable device communicating with the location device by ultra high frequency waves, the invention consisting at each transmission of an ultra high frequency signal by the location device: of simultaneously transmitting by the location device at least one ultrasonic signal, intended for the portable device; of measuring a delay between a first time of reception of the ultra high frequency signal and un second time of reception of the ultrasonic signal by the portable device; of determining a distance between the portable device and the location device on the basis of the delay thus measured. Also disclosed is a location device and a corresponding portable device.

Abstract: A system and method for determining a presence of a mobile device located in a predetermined detection zone within a vehicle may include a plurality of transmitters located within the vehicle, in which each of the plurality of transmitters is configured to transmit an acoustic signal into an acoustic environment within the vehicle, and in which each of the acoustic signals comprises at least one ultrasonic pulse, a mobile device configured to periodically record sounds in the acoustic environment, and a processor configured to determine that a periodically recorded sound by the mobile device comprises each of the acoustic signals transmitted by the plurality of transmitters, determine a location of the mobile device within the vehicle based on the acoustic signals recorded by the mobile device, and determine that the location of the mobile device matches the predetermined detection zone.

Abstract: A data information integrated management system, particularly to an intelligent shooting training management system. The system includes a data acquisition apparatus, an operation terminal and a server. The operation terminal is connected with the data acquisition apparatus and the server. The data acquisition apparatus acquires a target paper image to obtain a photograph and a video record, and meanwhile, the data acquisition apparatus includes an automatic analysis module that analyzes a point of impact in the target paper image to obtain a shooting accuracy. The server manages the photograph, the video record, and the shooting accuracy. The operation terminal controls data exchange with the data acquisition apparatus and the server, and the operation terminal invokes and displays the photograph, the video record and the shooting accuracy.

Abstract: Provided is an image processing device including: an image read-in unit 51 which reads in one or more observation images which retain observation results from one or a plurality of wavelength regions; a reflection-absorption band region deletion unit 52 which deletes, from each of one or more of the observation images, observation results with respect to a reflection-absorption band region, and generates reflection-absorption band-deleted images; a coefficient constituent proportional value computation unit 53 which, using the reflection-absorption band-deleted images, derives a proportional value of a coefficient constituent for each wavelength band used in the observation; and a coefficient constituent deletion unit 54 which, on the basis of the obtained proportional values of the coefficient constituents for each of the wavelength bands, deletes the coefficient constituents from each of the observation values included in the one or more observation images, and generates illumination-corrected images.

Abstract: A test apparatus for binaurally-coupled acoustic devices is disclosed. The apparatus includes a base, a lid, a primary speaker, and a binaural test fixture. The lid is coupled to the base and movable between a closed position in which the lid and base cooperate to form a closed sound chamber that is symmetric about a vertical mirror plane, and an open position. The primary speaker is coupled to one of the base and the lid, and faces a direction that lies on the mirror plane. The binaural test fixture is positioned inside the sound chamber, and includes first and second acoustic coupler mounts. The vertical mirror plane extends symmetrically between the first and second acoustic coupler mounts. A binaural test fixture, an acoustic coupler assembly, and a method of testing binaurally-coupled acoustic devices are also disclosed.

Abstract: Disclosed herein are apparatus, devices, and methods for monitoring marine animals, such as whales, and other marine mammals, and fish groups within a marine environment. A marine animal monitoring system may include an acoustic receiver array having a high-resolution directional sensing capacity using large-aperture densely-sampled coherent ocean acoustic receiver arrays operative to enhance detection range and localization accuracy of marine mammal vocalizations and fish acoustic signals. The acoustic receiver array may generate acoustic signal information based on acoustic signals sensed at the array. The marine monitoring system may operate to generate marine animal information based on the acoustic signal information, such as marine animal location, species, call type, and/or the like.

Abstract: A system and method for processing sounds. The sound processing system includes a sound sensing unit including a plurality of microphones, wherein each microphone is configured to capture non-manipulated sound signals; a beam synthesizer including a plurality of first modules, each first module corresponding to one of the plurality of microphones, wherein each first module is configured to filter the non-manipulated sound signals captured by the corresponding microphone to generate filtered sound signals; and a sound analyzer communicatively connected to the sound sensing unit and to the beam synthesizer, wherein the sound analyzer is configured to generate a manipulated sound beam based on the filtered sound signals.

Abstract: Disclosed herein are an integrated monitoring CCTV, an abnormality detection apparatus, and a method for operating the apparatus.

Abstract: An audio processing scheme is described. In an example, an apparatus comprises: at least two acoustic sensors through which audio content is received; at least one other sensor; an audio processor connected to the sensors and configured to receive audio information from the acoustic sensors and other information from the other sensor. The audio processor is configured to determine a use case of the apparatus based on the audio information and the other information. The audio processor is configured to adjust at least one audio processing scheme for the apparatus based on the determined use case. In other examples, a method and a computer program product are described.

Abstract: Disclosed is a method and system for processing images from an aerial imaging device. The method includes receiving a first image of a geographical area having a first resolution. The method transmits the first image to a machine learning model to identify an area of interest containing an object of interest. The method receives a second image of the geographical area having a second resolution higher than the first resolution. The method transmits the second image to the machine learning model to determine a likelihood that the area of interest contains the object of interest. The method trains the machine learning model to filter out features corresponding to the area of interest in images having the first resolution if the likelihood is below a threshold. The method transmits a visual representation of the object of interest to a user device if the likelihood exceeds the threshold.

Abstract: A processor-implemented method for foreground signal suppression. The method includes: capturing a plurality of input signals using a plurality of sensors within a sound field; subjecting each input signal to a short-time Fourier transform to transform each signal into a plurality of non-overlapping subband regions; estimating the diffuseness of the sound field based on the plurality of input signals; decomposing each of the plurality of input signals into a diffuse component and a directional component based on the diffuseness estimate; applying a spatial analysis operation to filter the directional component of each of the plurality of input signals, wherein the spatial analysis operation includes applying a set of beamformers to the directional components to produce a plurality of beamformer signals; and processing the plurality of beamformer signals to decompose the signal into a foreground channel and a background channel.

Abstract: Systems and methods for estimating whether a receiver is indoors or outdoors. Certain approaches evaluate data associated with a network of beacons to determine whether the receiver is indoors or outdoors. Such evaluation may include any of determining whether azimuthal angles corresponding to the beacons meet an azimuthal angle condition, determining whether elevation angles corresponding to the beacons meet an elevation angle condition, determining whether signal strengths corresponding to the beacons meet a signal strength condition, and determining whether other measurements associated with the beacons meet other measurement conditions.

Abstract: Systems and methods for detecting personal distress and gesture commands in security video are provided. Some methods can include receiving a sequence of images from a video device monitoring a secured area, analyzing the sequence of images to detect a presence of a human in the sequence of images, when the presence of the human is detected in the sequence of images, analyzing the sequence of images to detect one of a plurality of contexts that requires an action in the sequence of images, and when the one of the plurality of contexts that requires the action is detected in the sequence of images, transmitting a signal to execute the action. Each of the plurality of contexts can include a respective act performed by the human or a respective condition of the human irrespective of the human being in motion or being stationary.