An apparatus, method and computer program, the apparatus comprising: processing circuitry; and memory circuitry including computer program code, the memory circuitry and the computer program code configured to, with the processing circuitry, enable the apparatus to: enable a wireless connection to be established with an electronic device; capture an audio signal and enable the captured audio signal to be sent to the electronic device using the wireless connection to enable the captured audio signal to be used to create an enhanced audio signal; and wherein the apparatus is arranged to be removeably attachable to the electronic device.

An apparatus, method and computer program, the apparatus comprising: processing circuitry; and memory circuitry including computer program code, the memory circuitry and the computer program code configured to, with the processing circuitry, enable the apparatus to: enable a wireless connection to be established with an electronic device; capture an audio signal and enable the captured audio signal to be sent to the electronic device using the wireless connection to enable the captured audio signal to be used to create an enhanced audio signal; and wherein the apparatus is arranged to be removeably attachable to the electronic device.

The present group of inventions relates to methods and systems for positioning underwater objects, and more particularly to methods and systems in which satellite signals are received by receivers disposed on sonar buoys, the coordinates of the sonar buoys are determined by means of computation modules on the sonar buoys, location data and identification data are transmitted in the form of sonar signals emitted by transmitters on the sonar buoys, the signals are received with the aid of a receiver disposed on an underwater object, and the coordinates of the underwater object are determined according to the time delay of receipt of the sonar signals from the sonar buoys, the location of which is known. The present solution can be used in simultaneously determining the geographical position of an unlimited number of mobile underwater objects, remotely operated underwater vehicles, divers, marine animals, etc. in motion. According to the invention, signals from the aforementioned sonar buoys are encoded in the form of periodic signals tethered to GPS/GLONASS clocks, all transmitters of the sonar signals are disposed at the same depth, and during decoding of the signals from the sonar buoys, direct signals from the sonar buoys are isolated from reflected signals. The system implements the aforementioned method. The achieved technical result is more accurate positioning of the underwater objects.

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.

To provide an imaging system, an imaging device, and an imaging method capable of accurately and easily synchronizing a plurality of imaging devices while suppressing a manufacturing cost and the like of the imaging device. Provided is an imaging system including three sound devices configured to output reference sounds different from one another, and a plurality of imaging devices configured to perform imaging in synchronization with one another on the basis of the reference sounds, in which each of the sound devices includes a first capture unit configured to capture the reference sound output from another of the sound devices, and an output unit configured to output the corresponding reference sound on the basis of the capture of the reference sound from the another of the sound devices, and each of the imaging devices includes a second capture unit configured to capture each of the reference sounds, a storage unit configured to store information regarding mutual relative positions of the three sound devices, and a synchronization signal generation unit configured to correct any one of the reference sounds on the basis of an interval of capturing each of the reference sounds and the relative positions to generate a synchronization signal for imaging.

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 identify a peak in the received signal, and to de-convolve the signal with all codes that are relevant to the area in which the signal is received. A joint likelihood that a potential code is correct is formed by determining a likelihood based on a signal parameter such as signal-to-noise ratio and a likelihood based on time-of arrival information.

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 identify a peak in the received signal, and to de-convolve the signal with all codes that are relevant to the area in which the signal is received. A joint likelihood that a potential code is correct is formed by determining a likelihood based on a signal parameter such as signal-to-noise ratio and a likelihood based on time-of arrival information.

A device includes a processor; and a memory connected to the processor and storing an artificial intelligence algorithm, first to third location data, wherein the memory stores program instructions which, when executed by the processor, cause the processor to, two-dimensionally map the first location data to a first point according to a preset mapping method, two-dimensionally map the second location data to a second point according to the mapping method, two-dimensionally map the third location data to a third point according to the mapping method, set a reference point, a first reference line, and a second reference line according to a preset method through the first point to the third point, generate movement information about a location where a user has moved from a location corresponding to the reference point by using location information received from a user terminal, and train the artificial intelligence algorithm using the movement information.

A device includes a processor; and a memory connected to the processor and storing an artificial intelligence algorithm, first to third location data, wherein the memory stores program instructions which, when executed by the processor, cause the processor to, two-dimensionally map the first location data to a first point according to a preset mapping method, two-dimensionally map the second location data to a second point according to the mapping method, two-dimensionally map the third location data to a third point according to the mapping method, set a reference point, a first reference line, and a second reference line according to a preset method through the first point to the third point, generate movement information about a location where a user has moved from a location corresponding to the reference point by using location information received from a user terminal, and train the artificial intelligence algorithm using the movement information.

A three-dimensional space detection system, including: a locating base station, a label device to be located, and a computing device. The locating base station synchronizes a base time point to the label device to be located, sends an ultrasonic signal to the label device to be located, rotationally sends a first laser plane signal about a first rotation axis, and rotationally sends a second laser plane signal about a second rotation axis perpendicular to the first rotation axis. The label device to be located synchronizes a base time point from the locating base station, detects the ultrasonic signal, the first laser plane signal and the second laser plane signal. The computing device determines the three-dimensional space coordinates of the label device to be located according to the time point at which the label device to be located detects the ultrasonic signal, the time point at which the label device to be located detects the first laser plane signal and the time point at which the label device to be located detects the second laser plane signal. The locating system enables precise indoor locating based on ultrasound and laser signals.