A driving assistance system includes a plurality of vehicles on which a plurality of microphones is mounted respectively and a server having an acquisition unit configured to acquire sound signals recorded by the microphones and position information of the vehicles. The server further has an estimation unit configured to estimate a position of one or more sound sources based on the sound signals and the position information and a providing unit configured to provide the estimated position of the one or more sound sources to the vehicles.

A driving assistance system includes a plurality of vehicles on which a plurality of microphones is mounted respectively and a server having an acquisition unit configured to acquire sound signals recorded by the microphones and position information of the vehicles. The server further has an estimation unit configured to estimate a position of one or more sound sources based on the sound signals and the position information and a providing unit configured to provide the estimated position of the one or more sound sources to the vehicles.

An apparatus for pointing wireless communication antennas may include (1) a mount that secures (A) a wireless communication antenna that transmits wireless communication signals to a remote wireless communication antenna that is secured on a remote mount and (B) an array of pointing antennas that receives, from a remote array of pointing antennas mounted on the remote mount, a beacon signal that indicates a location of the remote array of pointing antennas, (3) a motorized drive that physically orients the mount, and (4) a processing device that (A) determines, based at least in part on the beacon signal, an orientation of a boresight axis of the wireless communication antenna relative to a boresight axis of the remote wireless communication antenna and (B) directs the motorized drive to orient the mount such that the wireless communication antenna's boresight axis aligns with the remote wireless communication antenna's boresight axis.

Systems and methods are disclosed for autonomous joint detection-classification of acoustic sources of interest. Localization and tracking from unmanned marine vehicles are also described. Based on receiving acoustic signals originating above or below the surface, a processor can process the acoustic signals to determine the target of interest associated with the acoustic signal. The methods and systems autonomously and jointly detect and classify a target of interest. A target track can be generated corresponding to the locations of the detected target of interest. A classifier can be used representing spectral characteristics of a target of interest.

A method of using a directional microphone unit having an array of constituent microphones. Each of a plurality of the microphones receives substantially white noise via a direct path from a source, and also receives an echo comprising a reflection of the white noise from at least one surface, thereby obtaining a received noise signal comprising a combination of the directly-received noise and the echo. For each of the plurality of microphones, a spacing is identified between lobes and/or troughs in a respective spectrum of the received noise signal as received by the respective microphone, thereby determining an additional distance travelled by the echo to the respective microphone relative to the direct path. A direction of the source is calculated based on the additional distance travelled for each of said plurality of microphones.

Disclosed are an electronic device and a method of operating the same. The electronic device includes: a housing: a user interface; at least one microphone disposed in the housing; at least one camera disposed in the housing; at least one driver comprising driving circuitry connected to or disposed in the housing and configured to move the housing; a wireless communication circuit disposed within the housing; a processor operatively connected to the user interface, the microphone, the camera, the driver, and the wireless communication circuit; and a memory operatively connected to the processor, wherein the memory stores instructions which, when executed by the processor, control the electronic device to: acquire a voice and/or an image of a user through the microphone and/or the camera, identify the user based on the voice and/or the image, identify an activity of the user based on at least one piece of movement information of the identified user, location information, or information on an object that the user is using, determine a location from which to track the user based on the identified activity, control the driver to move the housing based at least in part on the determined location, track the activity of the user based on continuity of the activity after movement, and provide a result of the activity based on the tracking result.

The glasses with display may include a bridge, two temples hingedly coupled to the bridge, and a directional microphone array, the directional microphone array including two or more microphones positioned on the bridge or the temples. The glasses with display may also include a user microphone array, the user microphone array including one or more microphones positioned on the temples and oriented toward the mouth of a user wearing the glasses with display or one or more bone conduction microphones. In addition, the glasses with display include two lenses positioned in the bridge, at least one of the lenses including a display, the display visible by the user, the display including one or more of a directional display, closed caption display, and user volume display. The glasses with display additionally include a processor adapted to receive audio signals from the directional microphone array and the user microphone array, or from a separate mobile device, the processor adapted to control the display.

The present disclosure relates to an acoustic position determination system that includes a mobile communication device and at least one base transmitter unit. The mobile communication device is configured to transmit and receive acoustic signals. Due to relative movements between the mobile communication device and the base transmitter unit, frequencies of the received signals shift due to Doppler effect. The mobile communication device is configured to compensate Doppler frequency shifts in the received acoustic signals prior to performing a deconvolution decoding process. The mobile communication device is further configured to compensate Doppler frequency shifts and perform deconvolution decoding process on acoustic signals received from multiple signal transmission paths.

A method, apparatus, system, and computer program product for providing an in-vehicle display of information for an object of interest. Sound data is received from a sound sensor system connected to the vehicle. The sound data is for sounds detected in an exterior environment around the vehicle. The sound data is analyzed for a presence of an object of interest. The location of the object of interest is determined using the sound data in response to detecting the presence of the object of interest. A visual indicator for the object of interest is displayed using an electronic display system in the vehicle to augment a live view of the exterior environment seen through a window of the vehicle for the in-vehicle display of the information for the object of interest to draw attention to the object of interest in the live view.

An exemplary radio-frequency (RF)-based navigation reference system uses one or more non-collocated and time-synchronized direction-finding transmitters to enable a client receiver to estimate its own 3-D position, velocity and time (PVT) using direction-finding (DF) waveforms obtained from said reference transmitters. At least one reference transmitter is sufficient for obtaining a 3-D PVT solution provided the client receiver is equipped with an accurate (low-drift) local clock such as a chip-scale atomic clock (CSAC). All other client receivers require at least two reference transmitters to estimate their 3-D PVT.