Sonitor Technologies As

Mattheus Franciscus Albertus Ten Veldhuis

Wilfred Edwin Booij

Fritjof Boger Engelhardtsen

Cyril Antille

Elad Shabtai

Knut Osvald Welle

Knut Welle

An acoustic model determination approach for a real-time locating system is disclosed. The system includes one or more transmitting devices and one or more mobile devices. The acoustic model may be determined by deriving an acoustic representation of sub-structures within the building, and then forming the acoustic model based on the acoustic representation and the location and orientation of the static acoustic transmitting device. In another embodiment, an acoustic signal is transmitted from a static acoustic transmitting device, with the reflected signals received by the same static acoustic transmitting device in a receiving mode. Based on these received acoustic signals, the acoustic model is formed based on the reflected signals and the location and orientation of the static acoustic transmitting device.

Acoustic positioning transmitter and receiver system and method

An approach for providing a lower cost real time location system in less trafficked areas of a building. This approach uses on-board audio capabilities of a mobile device to receive a room response trace resulting from a self-generated acoustic signal. By comparing the room response trace to a modeled room response trace, the location of the mobile device is determined.

Ad hoc positioning of mobile devices using near ultrasound signals

A positioning system comprising a processing system () configured to receive a first position estimate for a mobile device (), and to receive data representative of an acoustic signal received by the mobile device () from one of a plurality of acoustic transmitter units (). For each of the acoustic transmitter units (), the processing system () determines spatial likelihood data representative of a likelihood of the received acoustic signal having been transmitted by the respective acoustic transmitter unit by comparing a time-of-flight range value with a geometric distance value, representative of a distance between the acoustic transmitter unit and the first position estimate. The processing system () processes the spatial likelihood data to identify a subset of the acoustic transmitter units, and processes information relating to the positions of the acoustic transmitter units in the identified subset and/or relating to the acoustic signals transmitted by the acoustic transmitter units in the identified subset, to determine a second position estimate for the mobile device ().

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Oslo, Norway

Mattheus Franciscus Albertus Ten Veldhuis