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公开(公告)号：US11977176B2
公开(公告)日：2024-05-07
申请号：US17991064
申请日：2022-11-21
Applicant: Sonitor Technologies AS
Inventor： Wilfred Edwin Booij
CPC classification number: G01S5/18 , G01S3/8022 , G01S5/30 , G01S11/14 , H04B11/00 , G01S3/8086 , G01S15/8977
Abstract: 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.
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公开(公告)号：US20230358543A1
公开(公告)日：2023-11-09
申请号：US18111031
申请日：2023-02-17
Applicant: Sonitor Technologies AS
Inventor： Wilfred Edwin Booij
CPC classification number: G01C21/206 , H04W4/33 , G01S5/30 , G01S15/02 , H04W4/023
Abstract: A method for finding door location in an automated way based on observations of people that are equipped with a device whose position is determined acoustically. By observing positioning transitions across internal structures such as walls, the location of doors can be automatically identified.
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公开(公告)号：US11333737B2
公开(公告)日：2022-05-17
申请号：US16173083
申请日：2018-10-29
Applicant: Sonitor Technologies AS
Inventor： Wilfred Edwin Booij , Oystein Haug Olsen
Abstract: An ultrasonic transmitter apparatus is configured to transmit an ultrasonic signal that communicates a binary identifier. The apparatus includes an ultrasound transmission system and is configured to transmit an ultrasonic signal that communicates the binary identifier according to an encoding in which each bit position in the binary identifier is associated with a respective pair of frequencies and with respective first and second time positions in the ultrasonic signal. The value of the bit position in the binary identifier determines which frequency of the pair of frequencies is transmitted at the first respective time position in the ultrasonic signal, with the other frequency of the pair of frequencies being transmitted at the second respective time position in the ultrasonic signal.
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公开(公告)号：US10823830B2
公开(公告)日：2020-11-03
申请号：US15858845
申请日：2017-12-29
Applicant: SONITOR TECHNOLOGIES AS
Inventor： Wilfred Edwin Booij , Cyril Antille
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.
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公开(公告)号：US12196876B2
公开(公告)日：2025-01-14
申请号：US17793438
申请日：2021-01-20
Applicant: Sonitor Technologies AS
Inventor： Wilfred Edwin Booij , Cyril Antille , Elad Shabtai , Mattheus Franciscus Albertus Ten Veldhuis
Abstract: A positioning system comprising a processing system (7; 9) configured to receive a first position estimate for a mobile device (7), and to receive data representative of an acoustic signal received by the mobile device (7) from one of a plurality of acoustic transmitter units (2, 3, 4, 5). For each of the acoustic transmitter units (2, 3, 4, 5), the processing system (7; 9) 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 (7; 9) 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 (7).
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Patent Agency Ranking
公开(公告)号：US20230228838A1
公开(公告)日：2023-07-20
申请号：US17991064
申请日：2022-11-21
Applicant: Sonitor Technologies AS
Inventor： Wilfred Edwin Booij
CPC classification number: G01S5/18 , G01S5/30 , G01S11/14 , H04B11/00 , G01S3/8022 , G01S3/8086
Abstract: 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.
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公开(公告)号：US20230115698A1
公开(公告)日：2023-04-13
申请号：US17888744
申请日：2022-08-16
Applicant: Sonitor Technologies AS
Inventor： Wilfred Edwin Booij , Cyril Antille
Abstract: Systems and methods of determining a location of a mobile computing device associated with a real-time locating system are provided. For instance, a mobile computing device can determine a first location of the mobile computing device. The mobile computing device can then receive acoustic-contextual data that is correlated with the first location of the mobile computing device. The acoustic-contextual data can include data associated with one or more transmitting devices, and data associated with an environment proximate the one or more transmitting devices. The mobile computing device can receive one or more signals from at least one of the one or more transmitting devices, and can determine a more accurate second location of the mobile computing device based at least in part on the acoustic-contextual data and the one or more received signals.
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公开(公告)号：US11506747B2
公开(公告)日：2022-11-22
申请号：US16890585
申请日：2020-06-02
Applicant: Sonitor Technologies AS
Inventor： Wilfred Edwin Booij
Abstract: 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.
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公开(公告)号：US11353569B2
公开(公告)日：2022-06-07
申请号：US17088173
申请日：2020-11-03
Applicant: SONITOR TECHNOLOGIES AS
Inventor： Wilfred Edwin Booij , Cyril Antille
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.
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10.发明授权公开(公告)号：US11002825B2
公开(公告)日：2021-05-11
申请号：US15858683
申请日：2017-12-29
Applicant: Sonitor Technologies AS
Inventor： Wilfred Edwin Booij , Cyril Antille , Endre Bakka , Magnus Oplenskedal
Abstract: 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.
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