Abstract:
The present disclosure provides techniques for improving IMU-based gesture detection by a device using ultrasonic Doppler. A method may include detecting the onset of a gesture at a first device based on motion data obtained from an IMU of the first device. An indication of the detection of the onset of the gesture may be provided to a second device. Next, a first audio signal may be received from the second device. As a result, the gesture may be identified based on the motion data and the received first audio signal. In some cases, a first token encoded within the first audio signal may be decoded and the first token may be provided to a third coordinating device. A confirmation message may be received from the third coordinating device based on the first token provided and identifying the gesture may be further based on the confirmation message.
Abstract:
A verified antispoofing navigation apparatus (14) is provided. The apparatus comprises: a primary navigation receiver (20) configured to provide a set of primary measurements related to positioning of a mobile platform (12); a supplemental navigation receiver (22) configured to provide a set of supplemental measurements related to positioning of the mobile platform; an identity monitoring device configured to verify an identity of a driver of the mobile platform; and a verification and authentication navigation processor (28) configured to verify authenticity of the set of primary measurements provided by the primary navigation receiver by using the set of supplemental measurements provided by the supplemental navigation receiver. The verified antispoofing navigation apparatus further comprises: a driver authentication navigation processor configured to provide the driving and rest times of the driver to relevant authorities (42).
Abstract:
The present invention relates ultrasound positioning systems (300), and in particular to ultrasound positioning systems that utilize at least one stationary array-based ultrasound transmitter (310) in combination with portable receivers (330,331) to provide a safe and robust positioning system.
Abstract:
Anordnung (100) zur Positionsbestimmung eines Nutzer-Endgeräts (102) in einem Aufenthaltsgebiet (104), wobei die Anordnung (100) das Nutzer-Endgerät (102), eine Schallemittereinrichtung (106), die zum Emittieren von Schallwellen ausgebildet ist, eine Schalldetektoreinrichtung (108), die zum Detektieren der emittierten Schallwellen ausgebildet ist, und eine Positionsbestimmungseinrichtung (110) aufweist, die zum Bestimmen der Position des Nutzer-Endgeräts (102) basierend auf Zeitinformation hinsichtlich des Emittierens von Schallwellen durch die Schallemittereinrichtung (106) und des Detektierens der Schallwellen durch die Schalldetektoreinrichtung (108) und basierend auf vorbekannter Positionsinformationen hinsichtlich der Position von einer der Schallemittereinrichtung (106) und der Schalldetektoreinrichtung (108) eingerichtet ist, wobei eine der Schallemittereinrichtung (106) und der Schalldetektoreinrichtung (108) Teil des Nutzer-Endgeräts (102) ist und die jeweils andere an vorbekannten Positionen in dem Aufenthaltsgebiet (104) angeordnet ist.
Abstract:
L'invention concerne un procédé et un dispositif de métrologie pour la calibration de la géométrie d'un réseau de Nb balises acoustiques sous-marines fixes (11, 12, 13, 14) délimitant un champ de balises, mettant en œuvre un mobile (20) comportant des moyens de réception des signaux acoustiques provenant respectivement de chacune des balises du réseau. Selon l'invention, le procédé de métrologie comprend les étapes suivantes : acquisition de Nm séries de Nb mesures acoustiques de distance relative entre le mobile et respectivement chaque balise du réseau, pendant un déplacement du mobile; calcul d'une fonction numérique C à partir de la série de mesures acoustiques des distances relatives et de paramètres représentatifs des positions relatives des balises; - exécution d'un algorithme de minimisation de la fonction numérique C pour en déduire une estimation des valeurs des paramètres de position relative de chacune des balises du réseau.
Abstract:
A method and apparatus for ranging finding of signal transmitting devices is provided. The method of signal reception is digitally based only and does not require receivers that are analog measurement devices. Ranging can be achieved using a single pulse emitting device operating in range spaced relation with a minimum of a single signal transmitter and a single digital receiver and processing circuitry. In general a plurality of transmitting pulsed emitters may be ranged and positioned virtually simultaneously in 3-dimensions (XYZ coordinates) using a configuration of a plurality of digital receivers arranged in any fixed 3-dimensional configuration. Applications may involve at least one single transmitter to receiver design to determine range, or at least one transmitted reflecting signal off from an object to determine range.
Abstract:
The disclosure relates to an apparatus (100) for determining a spatial position of an audio source (101-1) in multi moving audio sources scenarios, wherein the audio source (101-1) is configured to transmit an audio signal, wherein the audio signal is emittable as a sound wave by the audio source. The apparatus (100) comprises a plurality of audio signal inputs (103-1, 103-2, 103-3, 103-4), wherein each audio signal input (103-1, 103-2, 103-3, 103-4) is configured to receive an audio signal version in the form of a local sound wave of the emitted sound wave. Furthermore the apparatus (100) comprises processing circuitry (105) which is configured to compute and process probabilities of direction of arrival of the sound sources in order to reach a certain audio source position
Abstract:
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.
Abstract:
A verified antispoofing navigation apparatus (14) is provided. The apparatus comprises: a primary navigation receiver (20) configured to provide a set of primary measurements related to positioning of a mobile platform (12): a supplemental navigation receiver (22) configured to provide a set of supplemental measurements related to positioning of the mobile platform; an identity monitoring device configured to verify an identity of a driver of the mobile platform; and a verification and authentication navigation processor (28) configured to verify authenticity of the set of primary measurements provided by the primary navigation receiver by using the set of supplemental measurements provided by the supplemental navigation receiver. The verified antispoofing navigation apparatus further comprises: a driver authentication navigation processor configured to provide the driving and rest times of the driver to relevant authorities (42).
Abstract:
Techniques for accurate, low-complexity, scalable indoor localization. Low- complexity anchor nodes generate acoustic beacon signals, which are passively detectable by a mobile device, which may be unmodified smartphones operating in an acoustic frequency range. The acoustic beacon signals are modulated via codes in a boundary band of audio and ultrasound frequencies, imperceptible to humans yet detectable via a voice microphone of an unmodified smartphone. An application on the mobile device passively captures the acoustic beacon signals and determines relative distances to the anchor nodes. Localization and distance update techniques, implemented on the mobile device and/or a remote server, determines and updates in real-time the location of the mobile device. The system may be scalable to support any number of mobile devices. Based on the tracked location, the indoor localization system may provide indoor location-based-services (LBS) to the mobile devices, and transmit to the mobile device information relevant to its location.