Транспортное средство, способ опознавания водителя и машиночитаемый носитель

Изобретение относится к идентификации пассажиров транспортного средства. Способ опознавания водителя транспортного средства, который содержит множество маяков, множество ультразвуковых датчиков и устройство для опознавания водителя, выполненное с возможностью предсказывать траектории для первого и второго мобильных устройств на основании информации, принятой с множества маяков и множества ультразвуковых датчиков, и определять, какое одно из мобильных устройств связано с водителем, на основании предсказанных траекторий. Невременный машиночитаемый носитель, содержащий команды, которые при исполнении предписывают транспортному средству: соединяться с помощью множества маяков с первым мобильным устройством и вторым мобильным устройством, контролировать с помощью множества ультразвуковых датчиков множество зон вокруг транспортного средства и предсказывать траектории для первого и второго мобильных устройств на основании информации, принятой с множества маяков и множества ультразвуковых датчиков ...

Способ определения класса шумящего морского объекта

Изобретение относится к области гидроакустики, а именно к пассивным шумопеленгаторным станциям, предназначенным для обнаружения подводных объектов и надводных объектов по их шумоизлучению. Технический результат - повышение достоверности классификации на предельных дальностях обнаружения шумящего объекта. В способе проводят измерение вертикального распределения скорости звука в районе плавания, измерение уровня сигнала и скорости изменения пеленга обнаруженной цели. По результатам измерения этих параметров принимают решение о классе цели. Дополнительно измеряют вертикальный угол прихода на приёмную антенну максимума сигнала цели, по абсолютному значению которого с учётом среднеквадратической ошибки его измерения принимают решение в пользу подводной лодки либо в пользу надводного корабля. При этом для принятия окончательного решения о классе цели принятое по вертикальному углу решение о классе цели объединяется с решением о классе цели, принятым по уровню сигнала и скорости изменения пеленга ...

Способ определения класса шумящего морского объекта

Изобретение относится к области гидроакустики, а именно к гидроакустическим комплексам (ГАК), оснащенным пассивным и активным режимами работы, и предназначенным для обнаружения подводных и надводных объектов. Технический результат - повышение вероятности классификации на предельных дистанциях обнаружения шумящего объекта. Для классификации цели привлекается активный режим работы ГАК, который позволяет непосредственно после обнаружения объекта в пассивном режиме измерить дистанцию до обнаруженного объекта и с ее использованием принять решение о классе объекта. 1 ил.

Verfahren zum Ermitteln eines von Mehrwegeausbreitungseffekten befreiten Vertrauensschall-Signals und zum Bestimmen einer Entfernung und/oder einer Richtung zu einer Schallquelle sowie Vorrichtung und Fahrzeug

Die Erfindung betrifft ein Verfahren zum Ermitteln eines von Mehrwegeausbreitungseffekten befreiten Vertrauensschall-Signals V(t), insbesondere Vertrauensunterwasserschall-Signals, mit folgenden Schritten: – Bestimmen eines zeitabhängigen Messschallsignals M(t), welches eine Überlagerung des Vertrauensschall-Signals V(t) und eines Mehrwegeschall-Signals S(t) aufweist, sodass insbesondere das Messschallsignal eine Interferenz aufweist, – Ermitteln einer Umhüllenden U(t) des Messschallsignals M(t), – Ermitteln einer Periodendauer T der Umhüllenden U(t) und Verwenden des Messschallsignals während eines Anfangszeitraums, welche eine Zeitspanne a·T umfasst, wobei a ein Sicherheitsfaktor kleiner oder gleich 1 und T die ermittelte Periodendauer ist, sodass das von Mehrwegeausbreitungseffekten befreite Vertrauensschall-Signal V(t) für [t = 0 bis a·T] gegeben ist.

VERFAHREN UND VORRICHTUNG FÜR DIE FERNSTEUERUNG UND ÜBERWACHUNG VON UNBEMANNTEN UNTERWASSERFAHRZEUGEN

Ultrasonic range finder for reflection free operation - has separate remote transmitter triggered from receiver via transmission link

The ultrasonic range-finder reduces errors due to multiple-path reflections, and comprises separate transmit and receive units - placed at either limit of the distance being measured. The receiver unit comprises an ultrasonic detector (UE) whose output is connected to a measuring circuit. The time delay measured is proportional to distance and is displayed in a suitable form (F). A trigger pulse from a 'press-to-measure' button (T) is sent to an ultrasonic transmitter (US) at the remote location. The transmitter can be triggered by cable, light beam or radio link. The trigger pulse also starts the timing circuit (M). The timing sequence is stopped on receipt of the ultrasonic signal from the remote transmitter.

Erfassungstechnik mit zwei Durchläufen für Impulsabstandsmessungen ohne Echos

Eine Technik für eine gepulste Abstandsmessung ohne Echos einer mobilen Einrichtung innerhalb einer Umgebung umfasst eine Vielzahl von Sendern innerhalb der Umgebung, die Signalimpulse mit einer vordefinierten Frequenz an eine mobile Einrichtung senden, die einen Signalimpuls empfangen kann, den Signalimpuls in eine digitale Wellenform umwandeln kann, die digitale Wellenform in einem Puffer mit einer vorgegebenen Zeitlänge speichern kann, und die digitale Wellenform analysieren kann, um einen Signalimpuls bei der vorgegebenen Frequenz zu erfassen. Wenn ein Signalimpuls erfasst wird, kann die mobile Einrichtung die digitale Wellenform, die in dem Puffer gespeichert wurde, erneut analysieren, um nachzusehen, ob ein anderes Signalimpuls innerhalb der Wellenform erfasst werden kann, was die Existenz eines reflektierten Signals anzeigt. Wenn ein anderer Signalimpuls erfasst wird, dann kann die mobile Einrichtung den Signalimpuls, der zeitlich zuerst empfangen wurde, d.h. das direkte Signal, ...

Passives Verfahren zur Schätzung von Zieldaten eines im Wasser sich bewegenden, zeitkontinuierliche Wasserschallsignale abstrahlenden Ziels.

Ultraschallluftströmungsmessgerät

Einrichtung zur Positionserfassung

Die Erfindung betrifft eine Einrichtung zur Positionserfassung eines längs eines vorgegebenen Verfahrwegs beweglichen Gegenstandes (2), mit einem sich entlang des Verfahrwegs erstreckenden Schallsignalleiter (1) mit vorbestimmter, gleichmäßiger Schallausbreitungsgeschwindigkeit sowie mit einem mit einem Signalgeber (5) verbundenen, an dem beweglichen Gegenstand (2) befindlichen Signaleinkoppler (4) zum Einkoppeln eines getakteten Schallsignals in den Schallsignalleiter (1), wobei an beiden Enden des Schallsignalleiters (1) Signalauskoppler (6) angeordnet ist, die jeweils mit einem Zähler (8) verbunden sind, wobei die beiden Zähler (8) mit einer Auswerteeinheit (11) zur Bestimmung der Laufzeitdifferenz des eingekoppelten Schallsignals von der Einkopplungsstelle zu den Signalauskopplern (6) und zur Erzeugung eines für die momentane Position des beweglichen Gegenstandes (2) auf dem Verfahrweg repräsentativen Signals verbunden sind, wobei der Signaleinkoppler (4) als Schallsignal benachbarte ...

DIGITALES DREIDIMENSIONALES ULTRASCHALL-FOLGESYSTEM

Swimmer training aid

Driver identification using vehicle approach vectors

A method of driver identification includes connecting first 122 and second 124 mobile devices via beacons 104 whilst zones A-M around the vehicle are monitored using ultrasonic sensors 106. A driver identifier 108 predicts trajectories 134, 136 for the mobile devices, based on information received from the beacons and the sensors, and determines which one of the mobile devices is associated with a driver based on which device is approaching the drivers door. The beacons and sensors may be activated when a key-fob scanner 102 detects a key-fob 110 within a certain distance 112 of the vehicle. The received signal strength RSSI or the transmitted amplitude may be used to determine the mobile devices positions using triangulation. The devices may have been paired with the beacons previously which allows the vehicle to identify multiple drivers and set up driver preferences on entering the vehicle where the number of key-fobs is less than the number of drivers.

PASSIVE SONAR SYSTEMS

Passive accoustic range finding method

An acoustic range finding system has three aligned sensors (A, B, C) and operates by correlating the signals received by these sensors and uses two additional sensors (A1, C1) the signals of which are correlated with those of a central sensor (B). The comparison between these correlations permits to eliminate the ambiguities produced when acoustic pulses in a narrow frequency range are received, which in particular permits one to determine the position of naval vessels and weapons by means of their own sonar transmissions. ...

Dynamic positioning of marine vessels

Determining the position of a pile

A method and apparatus for determining the position of a pile or ground treatment apparatus or of an elongate element, generally while the pile or the like is being driven into the ground by means of a hammer or the like, is disclosed. The method involves measuring the time to receive the acoustic signal emitted due to the impact of the hammer on the object and comparing this with a reference signal. The difference in times will indicate the progress of the pile and hence the point at which it reaches the limit of its travel. A method of indicating ground conditions is also disclosed, involving the comparison of the time the stress wave induced in the pile takes to propagate up said pile with the propagation time of the partially reflected stress wave. This method can also be used to determine the depth of the pile below ground.

Component vehicles

Acoustic wide area air surveillance system

System and method for position monitoring using ultrasonic sensor

An ultrasonic position sensing system is disclosed. In one embodiment, the system includes an ultrasonic sensor (34) configured to monitor the position of a device (56). The system also includes ranging logic (36). The sensor is controlled by the logic to direct an ultrasonic pulse (122) toward the device. The logic is configured to compute the transit time and the velocity of the ultrasonic pulse. Based on these parameters, the logic computes the path length between the sensor and the device, which corresponds to the location of the device relative to the location of the sensor. In further embodiments, the ultrasonic positioning system may include multiple sensors in communication with the ranging logic for monitoring multiple devices.

System and method for position monitoring using ultrasonic sensor

Ultrasonic airspeed and direction sensor system

BALL MONITOR

PROCEDURE AND DEVICE FOR THE REMOTE CONTROL AND MONITORING OF UNMANNED UNDERWATER CRAFTS

VERFAHREN ZUR PASSIVEN ORTUNG VON SCHALLABSTRAHLENDEN ZIELEN

ARRANGEMENT FOR THE REPEATED USE OF ELECTROCARDIOGRAM ELECTRODES AND TRANSDUCERS

PROCEDURE FOR DETERMINING THE TARGET DISTANCE

PROCEDURE FOR THE DETERMINATION OF THE SPEED OF A VEHICLE

System and method for the continuous detection of impacts on pipelines for the transportation of fluids, particularly suitable for underwater pipelines

The present invention relates to a system and method for the continuous detection of impacts on pipelines for the fluid transportation, particularly on pipelines placed on the seabed, wherein the system comprises at least two sensors (11, 12) each installed in correspondence with an end of a section subject to detection (x) of a pipeline (13) and it is characterized in that a first sensor (12) of said at least two sensors (11, 12) is suitable for detecting first acoustic waves (14), which propagate along a first transmission phase associated with said pipeline (13) and a second sensor (11) of said at least two sensors (11, 12) is suitable for detecting second acoustic waves (15) which propagate along a second transmission phase associated with said pipeline (13), the second acoustic waves having different elastic features with respect to said first acoustic waves.

PASSIVE ACOUSTIC AQUATIC ANIMAL FINDER APPARATUS AND METHOD

Presentation board digitizer systems

A method and system for near real-time analysis and display of electrocardiographic signals

A METHOD AND APPARATUS FOR RANGING FINDING, ORIENTING, AND/OR POSITIONING OF SINGLE AND/OR MULTIPLE DEVICES

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.

PHASE MEASUREMENTS USING PSEUDO-RANDOM CODE

PHASE MEASUREMENTS USING PSEUDO-RANDOM CODE Signal phase delay may be accurately measured by transmitting a pseudo-random noise coded reference signal, deriving in-phase and quadrature components of the received coded signal and then separately decoding the in-phase and quadrature components. This technique effectively compresses the transmitted signal pulse to a very narrow width (thereby simplifying discrimination of separate pulses with similar arrival times) while magnifying the pulse amplitude (thereby enhancing the signal to noise ratio).

METHOD AND APPARATUS FOR DETERMINING PHYSICAL QUANTITIES

A distance R to be measured is derived by measuring the spacing xm between a fixed transmitter Tx and a movable receiver Rx, and comparing this with the reference spacing xref between a fixed transmitter Tx' and receiver Rx. Each spacing is measured by passing a large number of pulses sequentially from receiver to transmitter through a coupling medium, the receipt of one pulse triggering transmission of the next. The spacing is derived from the time T taken to pass n pulses; preferably n is fixed and T is measured.

PHASE MEASUREMENTS USING PSEUDO-RANDOM CODE

POSITION DETERMINATION SYSTEM HAVING A DECONVOLUTION DECODER

The present disclosure relates to an acoustic position determination system that includes a mobile communication device (106) and at least one base transmitter unit (104). 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.

ULTRASONIC DISTANCE MEASURING CIRCUIT

ULTRASONIC POSITIONING

... ²²²The present invention relates to the field of ultrasonic devices. More ²particularly the invention is related to the use of ultrasonic emitters, ²receivers, and reflectors for the precise alignment of parts of an endoscope ²relative to each other. The methods for determining the relative position of ²two parts of the endoscope are based on measuring the distance between them ²based on the use of one or more transducers or arrays of transducers ²functioning as transmitters of ultrasonic signals and one or more transducers ²or arrays of transducers functioning as receivers of the ultrasonic signals. ²In preferred embodiments of the invention, at least one of the receivers is ²replaced by a reflector and at least one of the transmitters also functions as ²a receiver.² ...

DETECTION OF MULTIPATH AND TRANSMIT LEVEL ADAPTATION THERETO FOR ULTRASONIC LOCATIONING

A system and method for detection of multipath and transmit level adaptation thereto in ultrasonic locationing of a mobile device within an environment includes providing fixed ultrasonic emitters for transmitting ultrasonic bursts at predetermined times. A communication device measuring at least a direct signal of each ultrasonic burst and detecting multipath of each ultrasonic burst by comparing an amplitude of the direct signal with other signals related to the ultrasonic burst. If multipath is detected a controller increasing a transmit power level of the ultrasonic burst to insure the direct signal reliably remains above the detection threshold. If multipath is not detected reduce a transmit power level to the point detection is just possible. Results from non-multipath conditions are more heavily weighted when determining position as they are typically more accurate.

METHOD FOR MONITORING A TRAFFIC ROUTE FOR A MEANS OF TRANSPORT OF A PREDETERMINED KIND

The invention relates to a method for monitoring a traffic route for a means of transport of a predetermined kind, particularly for an aircraft on a lane at an airport. The method involves noise signals that occur in a section of the traffic route (2) being recorded with a sound pickup means (6,..., 13) and evaluated such that a piece of localization information is ascertained which indicates whether a means of transport (1) of the predetermined kind is in the section of the traffic route (2). If the piece of localization information reveals that a means of transport (1) of the predetermined kind is in the section, the admissibility of the means of transport (1) to be in the section is checked on the basis of one or more prescribed criteria, whereupon an appropriate checking result is output. The method according to the invention is distinguished in that the evaluation of noise signals can be used to achieve reliable localization of means of transport independently of weather conditions ...

METHOD AND DEVICE FOR ESTIMATING AN INTER-NODE DISTANCE BETWEEN NODES ARRANGED ALONG TOWED ACOUSTIC LINEAR ANTENNAS

It is proposed a method for estimating an inter-node distance between a sender node (A) and a receiver node (B) belonging to a network comprising a plurality of nodes arranged along towed acoustic linear antennas (20a-20e), an acoustic signal being transmitted from the sender node to the receiver node through an underwater acoustic channel. The method comprises a step of estimating the inter-node distance as a function of an estimate of a sound speed profile of the underwater acoustic channel, said sound speed profile depending on depth.

VEHICLE SHAPE DETERMINATION SYSTEM

... 2115449 9304381 PCTABS00020 A vehicle measure system involves an array of microphones (18) and a spark emitter (24, 46) mounted on a vehicle. Sparking produces sound bursts which travels to the microphones (18). From detection of transmission times, the position of the emitter (24, 46) is found. Sound velocities are determined in various directions to ensure the air is homogeneous, else corrections for sound speed variations are applied or data is rejected. Position data determined from various microphones (18) are compared to ensure repeated measurement accuracy. The apparatus includes simple circuitry with fewer received signal processing channels than microphones (18) and intelligent selection of active microphones in consequence. An emitter can be connected to the upper vehicle body via a bent coupler (78), which can pass around a wing for example. This allows the system, which is ground based, to be used for measurements of the upper vehicle body. The positions of microphones (18) ...

DEVICE FOR DETECTING POSITION

The invention relates to an apparatus for detecting the position of an object moveable along a predetermined travel path, comprising: an acoustic signal waveguide extending along the travel path and having a predetermined, uniform speed of propagation of sound; a signal input coupler located on the moveable object, to couple a clocked acoustic signal into the acoustic signal waveguide, signal output couplers at both ends of the acoustic signal waveguide and each being connected to an evaluation unit for determining the propagation- time difference of the sound signal from a position at which it is coupled in to the signal output couplers and for generating a signal representative of the instantaneous position of the moveable object on the travel path, wherein a calibration signal input coupler connected to a calibration acoust ic signal generator for a calibration acoustic signal is provided on one of the signal output couplers, the evaluation unit calculating a correction variable for ...

Vorrichtung bei Unterwassersignalisierung um am Empfangsapparat den Abstand bis zur Schallquelle bestimmen zu können.

Vorrichtung zum Anzeigen des kleinsten Abstandes zwischen Geschoss und einem sich in der Luft bewegenden Zielkörper

PROCEDURE FOR THE SURVEY OF THE MOVEMENTS OF A EMETTORE OF ULTRASOUNDS AND DEVICE OF SURVEY OF THE THREE-DIMENSIONAL MOVEMENTS OF A EMETTORE OF ULTRASUONI.

Il procedimento e il dispositivo inventati utilizzano la rilevazione, la comparazione, la misurazione nonché la valutazione della differenza di fase tra un segnale a ultrasuoni emesso da un emettore e un analogo segnale di riferimento presente in un ricevitore per rilevare e quantificare con precisione ogni spostamento dellemettore di ultrasuoni. Lemettore e il ricevitore sono sincronizzati mediante un segnale trasmesso via cavo, via radio o altro. Con lutilizzo di tre o più microfoni è possibile determinare lo spostamento nelle tre dimensioni x, y, z dellemettore di ultrasuoni che per esempio potrebbe essere incorporato in un mouse per computer utilizzabile anche per disegni tridimensionali o in un telecomando per console di gioco. Al posto di utilizzare gli ultrasuoni emessi da un emettore è possibile comparare solo gli ultrasuoni riflessi da un ogetto mobile passivo.

Device for distance measurement.

Die Maschine besitzt einen Stator (10) und einen Rotor (23). Der Rotor (23) besitzt eine zentrale Nabe und eine mit der Nabe umlaufende Komponente, z.B. eine Schaufel. Die umlaufende Komponente hat ein erstes Ende, das fest mit der zentralen Nabe verbunden ist, sowie ein zweites Ende und einen Zwischenteil. Das zweite Ende der umlaufenden Komponente Teils ist vom Stator (10) beabstandet, um einen Spalt zu bilden. Auf dem Stator (10) oder dem Rotor (23) ist ein Geberelement angebracht. Das Geberelement gibt durch den Spalt eine Schallwelle mit einer bestimmten Frequenz ab. An dem anderen, d.h. am Spalt gegenüberliegenden Teil, d.h. dem Rotor (23) bzw. dem Stator (10) ist ein Empfängerelement (70) angebracht. Das Empfängerelement (70) empfängt die vom Geberelement abgegebene Schallwelle. Die Maschine (2) besitzt ferner eine Kontrolleinrichtung 8, welche die sich zwischen dem Rotor (23) und dem Stator (10) erstreckende Spaltbreite auf Basis der durch den Spalt abgegebenen Schallwellen bestimmt ...

Machine with device to the distance measurement.

Die Maschine besitzt einen Stator (10) und einen Rotor (23). Der Rotor (23) besitzt eine zentrale Nabe und eine mit der Nabe umlaufende Komponente, z.B. eine Schaufel. Die umlaufende Komponente hat ein erstes Ende, das fest mit der zentralen Nabe verbunden ist, sowie ein zweites Ende und einen Zwischenteil. Das zweite Ende der umlaufenden Komponente Teils ist vom Stator (10) beabstandet, um einen Spalt zu bilden. Auf dem Stator (10) oder dem Rotor (23) ist ein Geberelement angebracht. Das Geberelement gibt durch den Spalt eine Schallwelle mit einer bestimmten Frequenz ab. An dem anderen, d.h. am Spalt gegenüberliegenden Teil, d.h. dem Rotor (23) bzw. dem Stator (10) ist ein Empfängerelement (70) angebracht. Das Empfängerelement (70) empfängt die vom Geberelement abgegebene Schallwelle. Die Maschine (2) besitzt ferner eine Kontrolleinrichtung, welche die sich zwischen dem Rotor (23) und dem Stator (10) erstreckende Spaltbreite auf Basis der durch den Spalt abgegebenen Schallwellen bestimmt ...

Position detecting apparatus and method.

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Positionsbestimmung eines sich bewegenden Objekts In einem überwachbaren Bereich (4) mit einem stationären Überwachungssystem und einem am sich bewegenden Objekt befestigten Transponder (3). Des weiteren enthält das Überwachungssystem mindestens zwei Sensoreinhelten (2) und eine Auswertungseinheit (1) die es ermöglichen Distanzwerte mittels Laufzeitmessung von Ultraschall-Signalen (US) zu ermitteln und daraus eine Positionsbestimmung vorzunehmen.

SYSTEM AND METHOD OF CONTINUOUS DETECTION OF SHOCK EFFECTS ON PIPELINES, INTENDED FOR TRANSPORTATION OF FLUID MEDIA

DEVICE AND METHOD FOR DETERMINING LOCATION OF AN OBJECT IN PIPELINE

Method and device for managing the acoustic performances of a network of acoustic nodes arranged along towed acoustic linear antennas.

It is proposed a method for managing the acoustic performances of a network of acoustic nodes arranged along towed acoustic linear antennas, the network of acoustic nodes being adapted to determine inter-node distances allowing to locate the acoustic linear antennas. The method comprises steps of: obtaining (91) a determined layout of the network of acoustic nodes; obtaining (92) at least one marine environment property relating to an area of performance of a survey with the network of acoustic nodes; and quantifying (94) the acoustic performances of the network of acoustic nodes, using a sound propagation model, the at least one marine environment property and the determined layout.

Object detection device and object detection method

Used in rotary or linear activities of the retaining device the operating element

Time division multiple access ultrasonic ranging cluster communication method based on pre-partition merging algorithm

PROCEDE DE DETERMINATION PASSIVE DE DONNEES DE REPERAGE D'UN VEHICULE

L'invention concerne un procédé de détermination passive de données de repérage d'un véhicule. Les bruits émis par un véhicule en mouvement sont détectés par des transducteurs 4, 5, 6 en un point de mesure. Les signaux produits sont analysés en fréquence et sont traités mathématiquement pour déterminer l'angle de relèvement, le trajet et la vitesse du véhicule. L'invention s'applique notamment à la surveillance des navires. (CF DESSIN DANS BOPI) ...

DEVICE OF LOCATION OF the POSITION Of a POINT IN SPACE, IN PARTICULAR BY ULTRASOUNDS

SYSTEM OF PASSIVE TELEMETRY

CONJOINED TRANSITIVITE STRESS DIFFERENCES AND TIME EFFECT DOPLER MULTI-BAND FOR THE SEPARATION, CHARACTERIZATION, AND LOCATION OF SOUND SOURCES BY PASSIVE ACOUSTIC

Le procédé de trajectographie par voie passive d'une pluralité de sources émettant des premiers signaux comprend : ▪ des acquisitions par un ensemble de N capteurs (Ci)i∈[1; N] des signaux émis par au moins une source sur une fenêtre de temps et dans au moins une bande de fréquence ; ▪ un traitement des signaux comprenant des opérations (OP1) de corrélations croisées pour identifier des pics de corrélation et déduire des mesures de différence de fréquences d'arrivée FD et des différences de temps d'arrivée TDOA des signaux; ▪ une sélection d'un nombre de FDpq et de TDOApq pour chaque couple de capteurs (Ci); ▪ une génération de systèmes d'équations de transitivité pour chaque instant ti entre les FDpq(ti) et les TDOApq, les équations liant algébriquement les sommes de chaque FDpq(ti) et les sommes de chaque TDOApq de chaque couple de capteurs; ▪ une déduction d'une position d'au moins une source.

Acoustic level measurement in room or vehicle uses ultrasound system for precise location of microphone, enabling acoustic levels to be plotted

L'installation de mesure acoustique comporte : - une instrumentation de mesure acoustique (3) comportant notamment une antenne de mesure acoustique (4) équipée d'au moins un microphone (5), - un système de positionnement (11) de l'antenne (4) par ultrasons comportant : • au moins un émetteur ultrasonore (12) monté sur l'antenne à une distance connue par rapport au microphone, • une base (14) de réception ultrasonore des signaux émis par chaque émetteur et adaptée pour déterminer la position de chaque émetteur, - et une unité de commande (16) du système de positionnement (11) de l'antenne (4) et de l'instrumentation de mesure acoustique (3), adaptée pour, dans une première phase, commander en émission successivement chaque émetteur (12) afin de déterminer la position de l'antenne et, dans une deuxième phase, commander en acquisition les microphones (5) pour assurer la mesure acoustique à l'aide de l'instrumentation de mesure.

SEISMIC TACHOMETER

Process and sensor intended to determine the emitting distance of targets of the sounds

Le dispositif détermine l'éloignement de cibles à partir de signaux acoustiques (S(r2 , kFG ), S(r1 , kFG )), soumis à une transformation de Fourier, reçus par un capteur acoustique (2), à deux instants (t1 , t2 ) successifs auxquels elle se trouve à une distance (r1 , ou r2 ) de ce capteur acoustique. On détermine, par exploitation de la différence de phase du spectre sonore, la différence entre les distances (r1 et r2 ) de la cible (1) par rapport au capteur (2), aux instants (t1 , t2 ), et on calcule ensuite la distance par rapport à la cible selon le modèle des ondes sphériques.

UNDERWATER SOUND DETECTION APPARATUS USING SOUND SENSOR

The present invention relates to an underwater sound detection apparatus using a sound sensor which comprises: a buoy module transmitting a composite signal synthesizing sensed sound signals as a radio signal, and formed to be floated on the surface of the water; and a Z-axis sensor module sensing a sound signal in a Z-direction perpendicular to the surface of the water, and outputting a composite signal including the sound signal sensed in the Z-direction to the buoy module through a signal line. COPYRIGHT KIPO 2017 (101) GPS module (103) Radio signal transmitter (128) Switch (201) + Z-axis sensor (203) - Z-axis sensor (211,419) Sine pulse generator (213) Sine pulse multiplying and phase shift (219) Memory (221) Controller (401) X-axis sensor (403) Y-axis sensor (405) Omnidirectional sensor (413) Fluxgate sensor (421) Sine pulse multiplier (A1,A2,A3) First composite signal (BB) Driving pulse (CC) State signal (DD) Second composite signal (EE) GPS signal ...

수동 거리측정 소나에서 중복성을 가지는 입체배열 센서를 이용한 표적 위치추정방법

... 본 발명은 수동 거리측정 소나에서 중복성을 가지는 입체배열 센서를 이용한 표적 위치추정방법에 관한 것이다. 본 발명에 따른 수동 거리측정 소나에서 중복성을 가지는 입체배열 센서를 이용한 표적 위치추정 방법은 수평방향으로 4개 이상의 센서가 구비되고, 수직방향으로 1개 이상의 센서가 구비된 수동 거리측정 소나에서 중복성을 가지는 입체배열 센서를 이용한 표적 위치추정 방법에 있어서, 표적으로부터 센서에 신호가 입력되는 단계(S100); 입력된 신호로부터 고장센서를 판단하는 단계(S200); 상기 고장센서를 배제하고, 상기 표적의 거리를 추정하는 단계(S300); 상기 표적의 방위를 추정하는 단계(S400); 상기 표적의 고각을 추정하는 단계(S500); 및 상기 추정된 표적의 위치에 대한 함정의 롤피치를 보상하는 단계(S600);를 포함하는 것을 특징으로 한다. 본 발명에 따르면, 중복성을 가지는 입체배열 센서를 이용하여 일부 센서에 고장이 발생하는 경우에도 안정적으로 방위와 거리를 계산할 수 있다.

UNDERWATER INTEGRATED NAVIGATION SYSTEM FOR TRACKING UNDERWATER MOVING OBJECTS

An underwater integrated navigation system for tracking underwater moving objects according to the present invention comprises an underwater moving object which generates an acoustic pulse, and estimates a distance from a bus line using the acceleration and angular velocity data of a main body and the position information of the bus line measured by a built-in inertial sensor, adds a random noise to the position data of the main body measured by the USBL transceiver of the bus line, and corrects errors in underwater integrated navigation data; and the bus line which receives the generated acoustic pulse to measure the three-dimensional relative position of the underwater moving object and transmits a USBL signal for the position data of the underwater moving object to the underwater moving object. According to the present invention, it is possible to overcome the disadvantage of the USBL, that an error is increased as angular resolution is constant and a measurement distance increases, ...

OIL FILLING DEVICE

The present invention relates to an oil filling device and, more specifically, relates to an oil filling device to fill oil in a cylindrical sealing body wherein a unit module of an underwater sensor is tubing. According to the present invention, the oil filling device comprises a plurality of jackscrews in a longitudinal direction of an oil filling rod. Moreover, a height of the jackscrews is controlled to be different to adjust an inclination angle of the oil filling rod. COPYRIGHT KIPO 2018 ...

MÉTODO E DISPOSITIVO PARA GERENCIAR OS DESEMPENHOS ACÚSTICOS DE UMA REDE DE NÓS ACÚSTICOS DISPOSTOS AO LONGO DE ANTENAS LINEARES ACÚSTICAS REBOCADAS

MARINE SEISMIC VARIABLE DEPTH CONTROL METHOD AND DEVICE

A method of acoustic positioning determination includes detecting a temperature gradient profile across a depth of water, determining a level of a thermal boundary between an upper temperature level and a lower temperature level, and determining a distance from the thermal boundary to position the acoustic positioning device and positioning the acoustic positioning device at that location.

SUBARRAY MATCHING BEAMFORMER APPARATUS AND METHOD

A method of beam forming an array (60), by computer processing a cross covariance (30), of the reference sub array seismic signal data signal (120), by having an unknown shape comprising receiving acoustic signals (120), via the aray (100), and computing the date (20) and segmenting the array into an initial segment of a known shape and at least a second segment (44), and beam forming the initial segment to provide a beam formed output(60), and using the beam formed output to obtain weights (24), for the second segment of the array.

VEHICLE SHAPE DETERMINATION SYSTEM

A vehicle measure system involves an array of microphones (18) and a spark emitter (24, 46) mounted on a vehicle. Sparking produces sound bursts which travels to the microphones (18). From detection of transmission times, the position of the emitter (24, 46) is found. Sound velocities are determined in various directions to ensure the air is homogeneous, else corrections for sound speed variations are applied or data is rejected. Position data determined from various microphones (18) are compared to ensure repeated measurement accuracy. The apparatus includes simple circuitry with fewer received signal processing channels than microphones (18) and intelligent selection of active microphones in consequence. An emitter can be connected to the upper vehicle body via a bent coupler (78), which can pass around a wing for example. This allows the system, which is ground based, to be used for measurements of the upper vehicle body. The positions of microphones (18) are determined precisely before ...

System and method for determining loft time, speed, height and distance

The invention detects the loft time and/or speed of a vehicle, such as a sporting vehicle, during activities of moving and jumping. A loft sensor detects when the vehicle leaves the ground and when the vehicle returns to the ground. A microprocessor subsystem converts the sensed information to determine a loft time. A display shows the recorded loft time to a user of the system. In addition, a speed sensor can detect the vehicle's speed for selective display to the user. The invention is particularly well-suited to sporting activities such as snowboarding where users loft into the air on ski jumps and catch “air” time but have no quantitative measure of the actual time lapse in the air. Therefore, users in skiing can use invention to record, store, and playback selected information relating to their sporting day, including the total amount of “air” time for the day and information such as dead time, i.e., time not spent on the slopes.

Speaker apparatus, audio data supply apparatus, and audio data reproduction system

A speaker apparatus includes a measuring unit configured to measure a first distance to a detection object, the detection object existing on one side in a vertical direction substantially orthogonal to a sound radiation direction, and a second distance to a detection object, the detection object existing on another side in the vertical direction.

OBSTACLE DETECTING APPARATUS USING ULTRASONIC WAVES

Vehicle and method of controlling the same

A vehicle may include a speaker; a display; a plurality of microphones configured to receive sound waves outside the vehicle; and a controller connected to the speaker, the display, and the plurality of microphones, and configured to determine sound wave characteristics of a terrain around a road on which the vehicle travels, based on map information, to determine a direct wave and a reflected wave of the received sound waves based on the terrain, the determined sound wave characteristics of the terrain, and the received sound waves, to determine a position and a velocity of an object that has generated the received sound waves based on the direct wave and the reflected wave, and to control at least one of the speaker and the display to output information on the position and the velocity of the object.

Automatic content transfer

A computing system with multiple devices local to an environment facilitates active transfer among the multiple devices as a user moves about the environment. The devices may sense a presence or non-presence of the user and attempt to coordinate transfer to a device proximal to the user. In another implementation, the devices may communicate with a remote system that monitors a location of the user within the environment and causes content associated with the user to transfer between computing devices of the system based on the location and movement of the user.

METHOD FOR DETERMINING CHANGE IN DISTANCE, LOCATION PROMPTING METHOD AND APPARATUS AND SYSTEM THEREOF

A method for determining a change in a distance, a location prompting method and an apparatus and a system thereof are provided. The method includes: sending, by a receiving terminal, a paring request to a server for the server to forward the paring request to a transmitting terminal, and to allocate a frequency band for the receiving terminal and the transmitting terminal after the transmitting terminal accepts the paring request; acquiring, by the receiving terminal, an acoustic wave signal of a frequency sent by the transmitting terminal, wherein the frequency is determined by the transmitting terminal based on the allocated frequency band; determining, by the receiving terminal, a change in the acquired acoustic wave signal; and determining, by the receiving terminal, a change in a distance between the transmitting terminal and the receiving terminal according to the change in the acquired acoustic wave signal.

APPARATUS FOR TRACKING SOUND SOURCE, METHOD OF TRACKING SOUND SOURCE, AND APPARATUS FOR TRACKING ACQUAINTANCE

Provided is a sound source tracking apparatuses including a vibration unit including vibrators configured to vibrate in response to an ambient sound, the ambient sound including individual sounds, and a processor configured to separate the ambient sound into individual sounds, to determine a target individual sound having a target tone color among the individual sounds, and to obtain a relative location of a target sound source that generates the target individual sound.

MOTOR VEHICLE HAVING A SOUND CAPTURE DEVICE

A motor vehicle having a sound capture device for the directionally dependent capture of external sound and providing an input signal representative of the external sound, an evaluation unit for evaluating the input signal and for providing an output signal representative of the input signal, and a loudspeaker assembly in the interior of the motor vehicle for outputting a sound signal consistent with the output signal.

UAV detection

A system for detecting, classifying and tracking unmanned aerial vehicles (UAVs) comprising: at least one microphone array arranged to provide audio data; at least one camera arranged to provide video data; and at least one processor arranged to generate a spatial detection probability map comprising a set of spatial cells. The processor assigns a probability score to each cell as a function of: an audio analysis score generated by comparing audio data to a library of audio signatures; an audio intensity score generated by evaluating a power of at least a portion of a spectrum of the audio data; and a video analysis score generated by using an image processing algorithm to analyse the video data. The system is arranged to indicate that a UAV has been detected in one or more spatial cells if the associated probability score exceeds a predetermined detection threshold.

Systems for determining vehicle location

Systems, methods and apparatuses for determining the location, direction of travel and other parameters of wheeled vehicles such as cars and trucks being driven along public roads and highways based on sounds produced, transducers and digital signal processing.

Ultrasound zone location system with high capacity

A zone location system with ultrasound US transmitters S1, S2, S3 located in respective zones Z1, Z2, Z3 such as rooms of a building B. Preferably, the US transmitters are time-multiplexed so that each of them in turn transmits a US signal US with a unique ID code USID represented therein. The portable tag PT includes an ultrasound receiver USR arranged to receive the US signal. Based on the received US signal, the portable tag PT measures a strength of the received US signal. The portable tag PT also measures a parameter related to a movement of the portable tag PT, e.g. a Doppler shift based on the received US signal. Further, the portable tag extracts the USID. Then it transmits a wireless Radio Frequency signal RFS with its own ID PTID, the USID and first and second data values D1, D2 representing the signal strength and the movement related parameters. A processor P connected to a Radio Frequency receiver RFR receives the data from the portable tag PT and determines a connection between ...

Object position estimation system, apparatus and method

The position estimation system (220, 226, 222) for estimating a position of an object (224) in a room (200) works by an ultrasound emitter (220) emitting an ultrasound pulse (201), which is reflected at least once on a reflecting object (232), after which an ultrasound receiver (226) detects an ultrasound signal (300) comprising at least the reflection and possibly also a line of sight transmission. Either the emitter or the receiver is attached to the object. A processor estimates the position of the object (224) on the basis of the ultrasound signal (300), by a calculation dependent on properties of the ultrasound signal (300) or by matching the ultrasound signal (300) with templates for object (224) positions, obtained by measurement or by simulation of the ultrasound pulse (201) transmission in the room (200).

Method for the passive determination of target data

THREE-DIMENSIONAL DIGITAL ULTRASOUND TRACKING SYSTEM

СПОСОБ И УСТРОЙСТВО ДЛЯ УПРАВЛЕНИЯ АКУСТИЧЕСКИМИ ХАРАКТЕРИСТИКАМИ СЕТИ АКУСТИЧЕСКИХ УЗЛОВ, РАСПОЛОЖЕННЫХ ВДОЛЬ БУКСИРУЕМЫХ АКУСТИЧЕСКИХ ЛИНЕЙНЫХ АНТЕНН

Предлагается способ управления акустическими характеристиками сети акустических узлов, расположенных вдоль буксируемых акустических линейных антенн, причем сети акустических узлов настроены на определение межузловых расстояний, позволяя определить местоположение акустических линейных антенн. Способ содержит следующие стадии: получение (91) заданной схемы расположения сети акустических узлов; получение (92), по меньшей мере, одного свойства морской среды, относящегося к области выполнения разведки с помощью сети акустических узлов; и определение количества (94) акустическая характеристики сети акустических узлов, используя модель распространения звука, по меньшей мере, одного свойства морской среды и заданной схемы расположения. 3 н. и 12 з.п. ф-лы, 12 ил.

Способ определения класса шумящей цели и дистанции до неё

Изобретение относится к области гидроакустики, а именно к пассивным шумопеленгаторным станциям (ШПС), предназначенным для обнаружения подводных лодок (ПЛ) и надводных кораблей (НК) по их шумоизлучению. Достигаемый технический результат - повышение достоверности классификации и точности определения дистанции до обнаруженной шумящей цели. Технический результат достигается тем, что решение о классе цели и дистанции до нее принимаются с использованием измеренных значений уровня сигнала и величины (скорости) изменения пеленга (ВИП) цели, обнаруженной на выходе веера характеристик направленности приемной гидроакустической антенны. 6 ил.

СПОСОБ ОПРЕДЕЛЕНИЯ КООРДИНАТ (ПЕЛЕНГА И ДИСТАНЦИИ) И ПАРАМЕТРОВ ДВИЖЕНИЯ (КУРСА И СКОРОСТИ) МОРСКОЙ ШУМЯЩЕЙ ЦЕЛИ

Изобретение относится к области гидроакустики, а именно к пассивным способам определения координат (пеленга и дистанции) и параметров движения (курса и скорости) морской шумящей цели (далее КПДЦ) по информации шумопеленгаторных станций (далее ШПС), установленных на подвижных носителях (подводных лодках, надводных кораблях, подводных аппаратах) либо стационарно. Достигаемый технический результат - уменьшение времени определения КПДЦ без специального маневрирования носителя ШПС. Указанный технический результат достигается тем, что осуществляют измерение массива пеленгов, измерение параметров сигнала цели, необходимых для определения типа цели и оценки дистанции до нее пассивными способами; определение типа цели и оценки дистанции до нее с использованием параметров сигнала цели; определение вероятностного распределения скорости цели, характерного для данного класса цели; определение вероятностного распределения оценок пеленгов и дистанций. 2 ил.

УСТРОЙСТВО ОПРЕДЕЛЕНИЯ МЕСТОПОЛОЖЕНИЯ ИСТОЧНИКА СЕЙСМОАКУСТИЧЕСКИХ СИГНАЛОВ

Предлагаемая полезная модель относится к средствам определения местоположения источников сейсмических и акустических колебаний выстреливших артиллерийских орудий и иных объектов с возможностью определения дальности, азимута и прямоугольных координат объектов интереса.Для определения прямоугольных координат сейсмоакустических объектов без априорного знания скорости распространения сейсмических волн и без ориентации датчика относительно дорожного полотна в устройство, содержащее три приемника колебаний, первый из которых представляет собой приемник акустических колебаний, а второй и третий - приемники сейсмических колебаний, выход первого и второго приемников соединены соответственно со входом первого и второго процессоров быстрого преобразования Фурье (БПФ), выходы которых подключены ко входам соответственно первого и второго пороговых детекторов, выходами подключенных ко входам соответственно первой и второй схем выбора максимума, выходы которых подключены соответственно к первому и второму ...

СПОСОБ ОПРЕДЕЛЕНИЯ МЕСТОПОЛОЖЕНИЯ И ПАРАМЕТРОВ ДВИЖЕНИЯ ОБЪЕКТА ПО ИЗМЕРЕНИЯМ УГЛОВЫХ КООРДИНАТ

Изобретение относится к гидроакустике и может быть использовано для определения координат положения и параметров движения объекта по данным пассивных гидроакустических средств с использованием как одной, так и нескольких приемных антенн. Достигаемый технический результат - повышение точности и унификации способов определения координат положения и параметров движения объекта без выполнения маневра носителя средств обнаружения. Сущность способа заключается в том, что пеленгана шумящий объект, движущийся курсом Ки скоростью V, полученные от каждой из k гидроакустических антенн, отображаются в виде единой матрицыраспределения положения объекта на плоскости, после чего производится сдвиг полученных матриц в направлениях возможного перемещения объекта при его движении курсом К, К, …, K, … Ки скоростью V, V, …,V, … V, приведение их к одному моменту времени и последующее поэлементное суммирование, при этом считается, что параметры сдвига (К, V) суммарной матрицы M, содержащей элемент с максимальным ...

МЕХАНИЗМ ДЕТЕКТИРОВАНИЯ ПРИБЛЕЖЕНИЯ НА ОСНОВЕ СИГНАЛОВ WI-FI

... 1. Способ, содержащий:определяют силу одного или больше сигналов, передаваемых между одной или больше антеннами первого устройства и двумя или больше антеннами второго устройства,в котором один или больше сигналов ассоциируют с пакетом многоадресной передачи; иопределяют степень приближения первого устройства и второго устройства, на основе определенной силы одного или больше сигналов.2. Способ по п.1, в котором определенную силу основывают на индикаторе силы принятого сигнала (RSSI) между антенной первого устройства и антенной второго устройства.3. Способ по п.1, в котором определение степени приближения включает в себя, определяют физическое размещение первого устройства относительно второго устройства.4. Способ по п.1, дополнительно содержащий детектируют внедренное время сигнала Wi-Fi, обмен которым выполняют между точкой доступа и первым устройством.5. Способ по п.4, дополнительно содержащий обмен аудиосигналами между первым устройством и вторым устройством, и определение времени приема ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ОЦЕНКИ МЕЖУЗЛОВОГО РАССТОЯНИЯ МЕЖДУ УЗЛОМ ПЕРЕДАТЧИКА И УЗЛОМ ПРИЕМНИКА

... 1. Способ для оценки межузлового расстояния между узлом передатчика и узлом приемника, принадлежащим сети, содержащей множество узлов, расположенных вдоль буксируемых акустических линейных антенн, причем акустический сигнал передается от узла передатчика до узла приемника через подводный акустический канал, при этом способ включает стадию оценки межузлового расстояния, как функции оценки профиля скорости звука подводного акустического канала, при этом указанный профиль скорости звука зависит от глубины.2. Способ по п.1, в котором указанная стадия оценки межузлового расстояния, содержит следующие стадии:- получение времени пробега акустического сигнала от узла передатчика до узла приемника, глубин погружения узла передатчика и узла приемника, скорости звука на глубине погружения узла передатчика и указанной оценки профиля скорости звука;- определение приблизительно точного межузлового расстояния, соответствующего пути по прямой линии между узлом передатчика и узлом приемника, как функции ...

Navigation system for e.g. position determination of security patrol robot, has ultrasound transmitting stations positioned in surface, where ultrasonic transmission range of station is partially overlapped with that of adjacent station

The system has multiple ultrasound transmitting stations positioned in or near a surface, where a desired number of mobile objects simultaneously moves on the surface. Each of the transmitting stations and the mobile objects are equipped with respective timers, which are synchronized. The mobile objects receive ultrasound transmitted by the transmitting stations, where ultrasonic transmission range of the transmitting station is partially overlapped with the ultrasonic transmission range of the adjacent transmitting station.

Anordnung zur praezisen Messung von Schallgeschwindigkeiten

Method for determining the state-of-travel data of an object

In methods for determining state-of-travel data such as distance and speed of an object with the aid of large-area sensor arrangements which can be dragged by an underwater vehicle or be attached to its sides, the sensors also being used, in addition to direction-finding measurement, for measuring significant frequencies radiated by the object, difficulties occur in the passive data determination. These are eliminated if the significant frequencies of the located line(s) are measured with respect to time and the data are determined from the rate of change of bearing and the rate of change of frequency. ...

Personal navigation system

A personal unit determines its distance from at least three nodes of a mesh network using the received signal strength of electromagnetic (radio or infra-red) or acoustic radiation, and hence its position. Alternatively or additionally, TDOA may be used. If insufficient nodes are available, the measurements are supplemented / replaced by sensor fusion and dead reckoning. This is used to determine position and thus to guide the user to a desired location in a building such as a library or shopping mall. The nodes may be incorporated in light switches, power sockets, lighting sockets, an annunciator or a security alarm panel. The system may control access through doors or barriers. A camera may record images which are geotagged (associated with position and orientation) and played back, or computer generated images may be used. The display may be ePaper. Communication with a site supervisor is possible. An alternative version directs a vehicle driver around a private enclosed site.

Dynamic positioning of marine vessels

Microphone proximity detection

A mobile communications device contains at least two microphones. One microphone is located away from the handset receiver and serves to pick up voice of a near end user of the device for transmission to the other party during a call. Another microphone is located near the handset receiver and serves to pick up acoustic output of the handset receiver (a far end signal). A signal processor measures the frequency response of the receiver. The signal processor performs spectral analysis of the receiver frequency response to determine whether or not the device is being held at the ear of the user. On that basis, the device automatically changes its operating mode, e.g., turns on or off a touch sensitive display screen during the call. Other embodiments are also described.

SOUND-BASED WELD TRAVEL SPEED SENSING SYSTEM AND METHOD

A weld travel speed sensing system includes at least one sound sensor configured to sense a sound generated to allow determination of a position of a welding torch. The weld travel speed sensing system is configured to determine a position of a point on the welding torch based on the sensed sound. 1. A weld travel speed sensing system , comprising:at least one sound sensor configured to sense a sound generated to allow determination of a position of a welding torch;wherein the weld travel speed sensing system is configured to determine a position of a point on the welding torch based on the sensed sound.2. The weld travel speed sensing system of claim 1 , comprising an array of sound sensors disposed about a weld area.3. The weld travel speed sensing system of claim 1 , wherein the at least one sound sensor is disposed on the welding torch.4. The weld travel speed sensing system of claim 1 , wherein the sound generated to allow determination of the position of the welding torch is emitted from one or more emitters disposed on the welding torch.5. The weld travel speed sensing system of claim 1 , wherein the sound generated to allow determination of the position of the welding torch is emitted from one or more emitters in an array of emitters disposed about a weld area.6. The weld travel speed sensing system of claim 1 , comprising a sensor disposed on the welding torch claim 1 , wherein the sensor is configured to sense a parameter indicative of a torch angle of the welding torch claim 1 , and wherein the travel speed sensing system is configured to determine the position of the point on the welding torch based on the sensed parameter.7. The weld travel speed sensing system of claim 1 , wherein the weld travel speed sensing system is configured to detect the position of the point on the welding torch based on a time of flight of one or more sounds associated with the welding system to the at least one sound sensor.8. The weld travel speed sensing system of claim 1 , ...

Systems and Methods For Indicating The Presence Of A Mobile Device Within A Passenger Cabin

Systems and methods for indicating the presence of a mobile device within a passenger cabin are provided. A method for indicating the presence of a mobile device within a passenger cabin of a vehicle includes linking a vehicle computing device with the mobile device, determining whether a vehicle ignition is off and whether a vehicle lock has been actuated. The method further includes generating an audible mobile device search signal that is played through a cabin and waiting to receive a response from the mobile device as to whether the mobile device detected the audible mobile device search signal. The method further includes determining whether the mobile device is within the passenger cabin based on whether a response was received from the mobile device and generating a first audible indication when the mobile device is within the passenger cabin.

System and method for position monitoring using ultrasonic sensor

An ultrasonic position sensing system is disclosed. In one embodiment, the system includes an ultrasonic sensor configured to monitor the position of a device. The system also includes ranging logic. The sensor is controlled by the logic to direct an ultrasonic pulse toward the device. The logic is configured to compute the transit time and the velocity of the ultrasonic pulse. Based on these parameters, the logic computes the path length between the sensor and the device, which corresponds to the location of the device relative to the location of the sensor. In further embodiments, the ultrasonic positioning system may include multiple sensors in communication with the ranging logic for monitoring multiple devices.

SYSTEMS AND METHODS FOR DETECTING DRIVER PHONE USE LEVERAGING CAR SPEAKERS

Systems and methods for determining a location of a device in a space in which speakers are disposed. The methods involve receiving a Combined Audio Signal (“CAS”) by an MCD microphone. The CAS is defined by a Discrete Audio Signal (“DAS”) output from the speakers. DAS may comprise at least one Sound Component (“SC”) having a frequency greater than frequencies within an audible frequency range for humans. The MCD analyzes CAS to detect an Arriving Time (“AT”) of SC of DAS output from a first speaker and an AT of SC of DAS output from a second speaker. The MCD then determines a first Relative Time Difference (“RTD”) between the DASs arriving from the first and second speakers based on the ATs which were previously detected. The first RTD is used to determine the location of the MCD within the space. 1. A method for determining a location of a device in a space in which a plurality of external speakers are disposed , comprising:receiving, by a single microphone of the device, a combined audio signal defined by a discrete audio signal output from a plurality of external speakers;analyzing, by the device, the combined audio signal to determine the location of the device within the space.2. The method according to claim 1 , wherein the analyzing step comprises:detecting an arriving time of a sound component of the discrete audio signal output from a first speaker of the plurality of external speakers and an arriving time of a sound component of the discrete audio signal output from a second speaker of the plurality of external speakers;determining, by the device, a first relative time difference between the discrete audio signals arriving from the first and second speakers based on the arriving times which were previously detected; andusing this information to determine the location of the device within the space.3. The method according to claim 1 , wherein the audio signal is sequentially output from a plurality of external speakers in a pre-assigned order.4. The method ...

LOCATING APPARATUSES BY MEANS OF AUDIO SIGNALS USING A DETERMINISTIC DATA CHANNEL

A locating device for locating at least one apparatus which is arrangeable on board a transport unit, for example an aircraft, a locating system having such a locating device and at least one apparatus to be located, an aircraft having a locating system of this type, an associated method for locating at least one apparatus which is to be located and is arrangeable on board a transport unit, for example on board an aircraft, and a computer program for carrying out the method. The locating device includes a detecting unit for detecting a wireless audio signal transmitted by the apparatus to be located; and a computing unit for determining the distance of the apparatus to be located from the detecting unit based on the wireless audio signal and on a first information signal assigned to the audio signal and transmitted via a first deterministic data connection. 1. Locating device for locating at least one apparatus which is to be located and is arrangeable on board a means of transport , for example on board an aircraft , the locating device comprising:a detecting unit for detecting an audio signal wirelessly transmitted by the at least one apparatus to be located; anda computing unit for determining the distance of the at least one apparatus to be located from the detecting unit based on the audio signal transmitted by the at least one apparatus to be located and on a first information signal assigned to the audio signal and transmitted via a first deterministic data connection.2. Locating device according to claim 1 , the computing unit being configured to determine claim 1 , based on the first information signal claim 1 , the time of transmission of the audio signal from the at least one apparatus to be located and to take account of the determined time of transmission of the audio signal on the determination of the distance of the at least one apparatus to be located from the detecting unit claim 1 , the first information signal claim 1 , for example claim 1 , ...

METHOD FOR INSTRUMENTING A CONTAINER INTENDED TO BE SET MOVING IN PARTICULAR IN ORDER TO MIX AN ASSORTMENT OF MATERIALS

The method for instrumenting a container, especially intended to receive an assortment of materials, capable of being set moving in a preset coordinate system, said method comprises the following steps: placing at least one communicating element in the container on an internal surface of the container; and tracking the location of each communicating element over time in the preset coordinate system. 1. A method for instrumenting a container , forming a recipient for an assortment of materials configured to mix the assortment of materials , capable of being set moving in a preset coordinate system , wherein it comprises the following steps:placing at least one communicating element in the container on an internal surface of the container; andtracking the location of each communicating element over time in the preset coordinate system.2. The method according to claim 1 , wherein the placing step comprises placing a plurality of communicating elements on the internal surface of the container and determining the positions of the various communicating elements relative to the internal surface of the container.3. The method according to claim 2 , wherein the internal surface of the container bounds an internal volume of known geometry claim 2 , and in that the step of placing the communicating elements comprises the following steps:randomly introducing the communicating elements into the container, preferably while it is moving;fastening the communicating elements to the internal surface of the container, preferably via magnetic attraction between each communicating element and the internal surface of the container; anddetermining, by way of data delivered by the communicating elements and of the known geometry, the position of the various communicating elements relative to the internal surface of the container.4. The method according to claim 3 , wherein the data delivered by the communicating elements correspond to behaviour data determined for the communicating ...

MEASUREMENT OF DISTANCE BETWEEN DEVICES USING AUDIO SIGNALS

Audio signals may be used for distance measurement with good autocorrelation properties which provides for the possibility of sub-sample delay measurement. Continuous playback and recording by all devices during the distance measurement process (including recording of the own playback) allows exclusion of random start/stop delays and subsequent large random errors. 1. A method comprising:causing two devices to play a pilot signal in synchronism with one another;causing each device to record pilot signals being played;measuring the delays between the recorded pilot signals; andusing the measured delays to calculate a distance between the two devices.2. The method of including choosing a master among a plurality of devices.3. The method of including causing the master to send a signal to the other devices to play a pilot signal.4. The method of including causing each of a plurality of devices to measure the delay between pilot signal playback and send the delay measurement to the master.5. The method of including causing the master to calculate the distances between devices.6. The method of including sending the distances to each of said devices.7. The method of including using an adaptive matched filter algorithm to calculate a correlation of a recorded pilot signal and a pseudorandom sequence defined by Shapiro polynomials.8. The method of including calculating the correlation using a matched filter and average signal power in a sliding window.9. The method of including detecting a pilot signal if the correlation is larger than an adaptive threshold.10. The method of including calculating said adaptive threshold as the square root of the average signal power times a scaling factor representing the probability of a false alarm.11. One or more non-transitory computer readable media storing instructions for execution by a processor to perform a sequence comprising:causing two devices to play a pilot signal in synchronism with one another;causing each device to record ...

OPTICAL MICROSCOPE AND METHOD FOR DETECTING LENS IMMERSION

An optical microscope and method for detecting lens immersion in optical microscopy includes an ultrasound circuit acoustically coupled to both an objective lens and a sample slide of an optical microscope, the ultrasound circuit comprising an ultrasound transmitter and an ultrasound receiver. The optical microscope and method includes transmitting an ultrasound pulse from the ultrasound transmitter to the ultrasound receiver, determining that a transit time of the ultrasound pulse is less than a threshold time, and providing an output signal from the pulse discriminator indicating that the ultrasound pulse is less than the threshold time. 1. A method for detecting lens immersion in optical microscopy , the method comprising:providing an ultrasound circuit acoustically coupled to both an objective lens and a sample slide of an optical microscope, the ultrasound circuit comprising an ultrasound transmitter and an ultrasound receiver, where the ultrasound circuit is configured to provide a first acoustic path, through a body of the optical microscope, when the objective lens and the sample slide are not both in direct contact with an immersion fluid, and a second, shorter, acoustic path through the immersion fluid, when the objective lens and the sample slide are both in direct contact with the immersion fluid;transmitting an ultrasound pulse from the ultrasound transmitter to the ultrasound receiver;determining with a pulse discriminator that a transit time of the ultrasound pulse is less than a threshold time, where the threshold time is selected to determine whether the pulse was transmitted along the first acoustic path or the second acoustic path; andproviding an output signal from the pulse discriminator indicating that the transit time of the ultrasound pulse is less than the threshold time in order to indicate that the objective lens and the sample slide are both in direct contact with the immersion fluid.2. The method of claim 1 , further comprising using the ...

DISTANCE MEASUREMENT DEVICE, DISTANCE MEASUREMENT SYSTEM, AND DISTANCE MEASUREMENT METHOD

Provided is a distance measuring apparatus, including an information acquisition unit that acquires information output from a second device that is attached to a target site for which a distance between a reference site and the target site is to be measured and acquires sound wave or radio wave output from a first device that is attached to the reference site and outputs sound wave or radio wave and information relating to an output of a first device; and a distance acquisition unit that acquires a distance between the first device and the second device on the basis of the acquired information.

Positioning transmitter, receiver, and system, and method therefor

A positioning system according to an embodiment of the above description includes a transmitter including a first transmitting unit and a second transmitting unit for transmitting a first signal and a second signal having different velocities, respectively; and a receiver including: a first receiving unit and a second receiving unit for measuring each time of reception of the first signal and the second signal; and a position determining unit for measuring a location of the transmitter using a difference in reception time of the first signal and the second signal.

ROBOT AND OPERATING METHOD THEREOF

A robot which executes a mounted artificial intelligence (AI) algorithm and/or machine learning algorithm and is capable of communicating with other electronic devices and external servers in a 5G communication environment and an operating method thereof. The robot includes a distance sensing sensor, an input unit which includes a plurality of microphones and is for inputting an audio signal, an output unit which includes a display, and a processor which obtains a sound of a base sound source disposed within a sensible range of the distance sensing sensor through a plurality of microphones to process the sound. The processor measures the distance between the robot and the base sound source using the distance sensing sensor, calculates reference CDR information corresponding to the measured distance information, and estimates CDR information of a sound corresponding to the distance from the robot based on the calculated reference CDR information. 1. An operating method of a robot , the operating method comprising:receiving a sound generated from a base sound source located in a sensible range of the robot through a plurality of microphones;calculating reference coherent to diffuse power ratio (CDR) information corresponding to distance information regarding a distance measured between the base sound source and the robot; andestimating CDR information of a sound corresponding to the distance from the robot, based on the calculated reference CDR information.2. The operating method of a robot according to claim 1 , further comprising:receiving a sound generated from a predetermined sound source which is out of a photographic range of the robot through the plurality of microphones;calculating CDR information of an input sound;estimating a position of the predetermined sound source based on the calculated CDR information and the estimated CDR information; andperforming a specific interaction operation when the estimated position of the predetermined sound source is within ...

DETERMINING LOCATION/ORIENTATION OF AN AUDIO DEVICE

Aspects of the present disclosure provide a first apparatus configured to transmit a first signal having a first frequency to a second apparatus, receive, from the second apparatus, a second signal having a second frequency responsive to the first signal, determine a latency associated with the transmitted first signal and received second signal and, determine a distance between the first apparatus and the second apparatus based, at least in part, on the determined latencies. According to an example, the first apparatus further determines a direction of the second apparatus relative to the first apparatus. According to an example, at least one of the first signal or second signal comprises an ultrasonic or high-frequency signal. 1. A first apparatus , comprising:a transmitter configured to transmit a first signal having a first frequency to a second apparatus;a first receiver configured to receive, from the second apparatus, a second signal having a second frequency responsive to the first signal; and determine a latency associated with the transmitted first signal and received second signal; and', 'determine a distance between the first apparatus and the second apparatus based, at least in part, on the determined latencies., 'a processor configured to2. The first apparatus of claim 1 , wherein determining the distance comprises:determining a total travel time of the first signal and the second signal based, at least in part, on the determined latencies.3. The first apparatus of claim 2 , further comprising:a timer,wherein the processor is further configured to:start the timer after transmitting the first signal;stop the timer after receiving the second signal; anddetermine the total travel time based, at least in part, on an elapsed time between starting and stopping of the timer.4. The first apparatus of claim 3 , wherein the processor is configured to:determine a time of flight by subtracting the determined latencies from the total travel time and dividing the ...

SYSTEM AND METHOD OF MEASURING BLADE CLEARANCE IN A TURBINE ENGINE

A system for measuring a gap between a moving and stationary component of a turbine engine. The system comprises a turbine engine having a core with compressor, combustor, and turbine sections in axial flow arrangement, with at least one rotating blade mounted to a shaft in the compressor and turbine sections and a stationary casing surrounding the at least one blade. At least one surface acoustic wave sensor mounted on one of the at least one blades or casing and generating an electromagnetic signal. An antenna in communication with the surface acoustic wave sensor for receiving the electromagnetic signal; and a computer system configured to receive the electromagnetic signal from the antenna and to convert the electromagnetic signal to a clearance value. 1. A system for measuring a gap between a moving and stationary component of a turbine engine comprising:a turbine engine having a core with compressor, combustor, and turbine sections in axial flow arrangement, with at least one rotating blade mounted to a rotor in the compressor and turbine sections and a stationary casing surrounding the at least one blade;at least one surface acoustic wave sensor mounted on one of the at least one blade or casing and generating an electromagnetic signal;an antenna in communication with the surface acoustic wave sensor for receiving the electromagnetic signal; anda computer system configured to receive the electromagnetic signal from the antenna and to convert the electromagnetic signal to a clearance value.2. The system of wherein the surface acoustic wave sensor has a piezoelectric substrate comprising of one of Langasite (La3Ga5SiO14) claim 1 , Lithium Nio-bate (LiNbO3) claim 1 , berlinite (AlPO4) claim 1 , lithium tetraborate (Li2B4O7) claim 1 , and galliumorthophosphate (GaPO4).3. The system of wherein the computer system has a real-time monitoring graphical user interface.4. The system of wherein the at least one surface acoustic wave sensor is removably mounted at a tip ...

ACOUSTIC MEASUREMENT SYSTEM INCORPORATING A TEMPERATURE CONTROLLED WAVEGUIDE

For a gas turbine engine (), a method and apparatus for determining temperature of combustion gas in a flow path () of the engine. In one embodiment a waveguide () includes a cavity () with a first waveguide end () including a barrier layer () which may be a membrane. With the first end positioned to inject an acoustic signal into the flow path, the barrier layer () isolates the cavity from combustion gas. Acoustic instrumentation positioned along the surface () of a wall () of the waveguide provides generation and propagation of acoustic signals into the flow path for detection and measurement after reflection back into the cavity. The wall may include sections of two different materials, one material having a higher melting temperature than the other, or one material having greater electrically isolating properties than the other section. 1. A measurement system for combustion gas in a gas turbine engine based on propagation of an acoustic signal while the gas passes through a measurement region in the engine , the system comprising:a waveguide having first and second ends and a cavity extending between the first and second ends of the waveguide, the first end configured to adjoin the flow path for injection of the acoustic signal into the measurement region; andan acoustically transmissive physical barrier positioned between a portion of the waveguide and the measurement region to prevent movement of the combustion gas from the measurement region into the waveguide while permitting transmission of the acoustic signal from the waveguide into the measurement region.2. The system of wherein the acoustically transmissive physical barrier is a membrane positioned to seal the cavity claim 1 , the system including at least one device for transmitting or receiving the acoustic signal along a wall of the waveguide.3. The system of wherein the at least one device is a transmitter positioned to generate the acoustic signal for propagation into the measurement region.4. The ...

OPTICAL-BASED WELD TRAVEL SPEED SENSING SYSTEM

A travel speed sensing system includes an optical sensor configured to be coupled to a welding torch. The optical sensor is configured to sense light incident on the optical sensor, and the travel speed sensing system is configured to determine a travel speed of the welding torch, a direction of the welding torch, or both, based on the sensed light. 1. A system , comprising:an optical sensor configured to be coupled to a hand held welding tool, the optical sensor configured to sense light incident on the optical sensor; anda torch monitor configured to determine a position or orientation of the hand held welding tool based on the light.2. The system of claim 1 , further comprising the hand held welding tool.3. The system of claim 2 , wherein the hand held welding tool comprises a welding gun used in gas metal arc welding (GMAW) claim 2 , an electrode holder used in shielded metal arc welding (SMAW) claim 2 , an electrode used in SMAW claim 2 , a welding torch used in gas tungsten arc welding (GTAW) claim 2 , or a filler rod used in GTAW.4. The system of claim 1 , wherein the hand held welding tool is configured for live welding.5. The system of claim 1 , further comprising a light source coupled to the hand held welding tool claim 1 , the light source configured to output the light toward a surface in a weld area.6. The system of claim 5 , further comprising a collimator claim 5 , lens claim 5 , or filter configured to maximize collection of reflected light from the light source by the optical sensor.7. The system of claim 1 , wherein a surface is augmented by application of a visible pattern to the surface claim 1 , and the torch monitor is configured to determine the position or orientation of the hand held welding torch based on the light reflected off the visible pattern.8. The system of claim 7 , wherein the visible pattern comprises a painted or taped pattern.9. The system of claim 1 , further comprising a sensor coupled to the hand held welding tool claim 1 , ...

SYSTEM AND METHOD FOR CALIBRATING BLUETOOTH LOW ENERGY SIGNAL STRENGTHS

Disclosed is a system and method for calibrating BLE signal strengths to high-accuracy/precise distances. The present disclosure involves auto-calibrating BLE-based tracking systems, such as, for example, those used indoors using acoustic signals. The present disclosure enables BLE-based distance estimation to be accurate to decimeters and centimeters. The disclosed systems and methods utilize signals communicated to and from roaming devices in order to determine the distance(s) between the roaming device and installed BLE units. A signal-strength to distance map can then be constructed for reuse on any device with a Bluetooth component.

DETECTION AND LOCATION OF A MOBILE DEVICE USING SOUND

A method for determining the location of a mobile device in a vehicle may include the transmission by one or more speakers of the vehicle of a sound signal having predetermined characteristics. The mobile device may include the capability to recognize the sound signal based on methods to identify a sound signal having the predetermined characteristics. In some aspects, the mobile device may incorporate software having a specific filter that is matched to the characteristics of the sound signal transmitted by the speakers. The mobile device may also include software configured to disambiguate effects of multi-path scattering, reflection, and attenuation of the signal through the vehicle cabin. The vehicle may include software to generate the sound signal and to adjust the sound signal characteristics for position-dependent signal fading, frequency dependent signal fading, and high amplitude audio interference. 1. A system for determining a presence of a mobile device located in a predetermined detection zone within a vehicle , the system comprising:a plurality of transmitters located within the vehicle, wherein each of the plurality of transmitters is configured to transmit a ranging acoustic signal, wherein the ranging acoustic signal comprises at least one predetermined ranging acoustic signal characteristic;a mobile device configured to receive each ranging acoustic signal transmitted by the plurality of transmitters; and determine a location of the mobile device within the vehicle based on the ranging acoustic signals transmitted by the plurality of transmitters and received by the mobile device;', 'determine when the location of the mobile device matches the predetermined detection zone; and', 'cause the mobile device to inhibit at least one function of the mobile device upon determining that the location of the mobile device matches the predetermined detection zone; and, 'a processor configured towherein the mobile device is configured to identify the ranging ...

ULTRA-SOUND COMMUNICATION SYSTEM

A device is disclosed. The device includes a plurality of microphones to receive ultra-sound signals, wherein the ultra-sound signals include an encoded data. The device also includes a microcontroller coupled to the plurality of microphones. The microcontroller is configured to detect the ultra-sound signals through the plurality of microphones. The detection of the ultra-sound signals includes calculating an angle of arrival of the ultra-sound signals at a microphone in the plurality of microphones. The microcontroller is configured to perform a transaction based on the encoded data received via a microphone in the plurality of microphones. 1. A device , comprising:a plurality of microphones to receive ultra-sound signals, wherein the ultra-sound signals includes an encoded data; anda processor coupled to the plurality of microphones, the processor is configurable to detect the ultra-sound signals through the plurality of microphones, wherein the detection includes calculating an angle of arrival of the ultra-sound signals at a microphone in the plurality of microphones, wherein the processor is configurable to perform a transaction based on the encoded data received via a microphone in the plurality of microphones.2. The device of claim 1 , wherein claim 1 , the processor is further configurable to disregard the ultra-sound signals if the measured angle of arrival is outside a preset threshold range.3. The device of claim 1 , wherein the processor is further configurable to measure a distance to a source of the ultra-sound signals.4. The device of claim 3 , wherein the processor is further configurable to disregard the ultra-sound signals if the measured distance is greater or smaller than a preset threshold.5. The device of claim 1 , wherein the processor is further configurable to perform a secret code exchange with a sender of the ultra-sound signals.6. The device of claim 5 , wherein the processor is configurable to encrypt data sent to the sender using the ...

DISTANCE MEASURING DEVICE INCLUDING PLASMA TRANSMITTER FOR TIME SYNCHRONIZED SOUND AND RADIO SIGNALS

A distance measuring system is provided that includes a first device having a transmitter configured to simultaneously transmit an electromagnetic signal and a sound signal. The distance measuring system also includes a second device located at a distance from the first device. The second device is configured to receive the electromagnetic signal at a first time and receive the sound signal at a second time, and calculate the distance of the second device from the first device based on a difference between the first time and the second time. 1. A distance measuring system comprising:a first device comprising a transmitter configured to simultaneously transmit an electromagnetic signal and a sound signal,a second device located at a distance from the first device, the second device comprising a single system receiver comprising a microphone having microphone circuitry, the microphone being configured to receive the electromagnetic signal at a first time and receive the sound signal at a second time, the microphone further being configured to detect the electromagnetic signal from the electromagnetic interference in the microphone circuitry,wherein the second device is configured to calculate the distance of the second device from the first device based on a difference between the first time and the second time.2. The distance measuring system of claim 1 , wherein the transmitter is a plasma transmitter.3. The distance measuring system of claim 2 , wherein the plasma transmitter is a corona discharge transmitter.4. The distance measuring system of claim 1 , wherein the first device is configured to transmit the electromagnetic signal as a radio signal.5. The distance measuring system of claim 1 , wherein the first device is configured to transmit the sound signal as an ultrasound signal.6. The distance measuring system of claim 1 , wherein the first device comprises a first device processor for controlling the first device.7. The distance measuring system of any of ...

Mechanism for proximity detection based on wi-fi signals

A mechanism is described for proximity detection based on Wi-Fi signals. A method of embodiments of the invention includes determining strength of one or more signals being communicated between one or more antennae of a first device and two or more antennae of a second device. The one or more signals are associated with a broadcast packet. The method further includes determining proximity of the first device and the second device based on the determined strength of the one or more signals.

ULTRASOUND BASED CONFIGURATION DETECTION OF A MULTIPART ELECTRONIC APPARATUS

In one example, an electronic apparatus comprises a first portion having an ultrasound emitter. The electronic apparatus further comprises a second portion having an ultrasound sensor. The first portion and the second portion are arranged to be movable with respect to each other thereby allowing distance between the ultrasound emitter and the ultrasound sensor to vary. The electronic apparatus further comprises a measurement unit configured to measure current propagation delay of an ultrasound wave from the ultrasound emitter to the ultrasound sensor. The electronic apparatus further comprises a calculation unit configured to calculate current distance between the ultrasound emitter and the ultrasound sensor based on the measured current propagation delay of the ultrasound wave from the ultrasound emitter to the ultrasound sensor. 1. An electronic apparatus , comprising:a first portion having an ultrasound emitter;a second portion having an ultrasound sensor, the first portion and the second portion arranged to be movable with respect to each other thereby allowing distance between the ultrasound emitter and the ultrasound sensor to vary;a measurement unit configured to measure current propagation delay of an ultrasound wave from the ultrasound emitter to the ultrasound sensor; anda calculation unit configured to calculate current distance between the ultrasound emitter and the ultrasound sensor based on the measured current propagation delay of the ultrasound wave from the ultrasound emitter to the ultrasound sensor.2. The electronic apparatus as claimed in claim 1 , wherein the first portion and the second portion are arranged to be foldable with respect to each other in a folding angle.3. The electronic apparatus as claimed in claim 2 , wherein the calculation unit is further configured to determine current folding angle based on the calculated current distance between the ultrasound emitter and the ultrasound sensor and further based on configuration information ...

POSITIONING DEVICE, COMMUNICATION DEVICE, AND POSITIONING SYSTEM

The present technology relates to a positioning device, a communication device, and a positioning system that are designed to consume lower amounts of power in a more reliable manner. In a case where the identification information included in a received radio signal is the identification information about the current search target, and the reception intensity of the radio signal exceeds a predetermined value, the positioning device transmits a distance measurement start instruction to the communication device, and carries out measurement of the distance to the communication device. Upon receiving the distance measurement start instruction from the positioning device, the communication device performs measurement of the distance to the positioning device. The present technology can be applied to a positioning system. 1. A positioning device comprising:a communication control unit that controls a communication unit that communicates with a communication device, the communication device transmitting a radio signal including identification information; anda distance measurement control unit that controls a distance measurement unit that carries out measurement of a distance to the communication device,wherein,in a case where the identification information included in the radio signal received by the communication unit is the identification information about a current search target, and a reception intensity of the radio signal exceeds a predetermined value,the communication control unit causes the communication unit to transmit a distance measurement start instruction to the communication device, andthe distance measurement control unit causes the distance measurement unit to carry out measurement of the distance to the communication device.2. The positioning device according to claim 1 , wherein claim 1 ,in a case where the measurement of the distance to the communication device has been completed,the communication control unit causes the communication unit to transmit ...

Methods and apparatuses for distance measurement

The present disclosure relates to a distance measurement system The system comprises a transmitter device and a receiver device. The transmitter device and the receiver device are clock-synchronized to each other. The transmitter device is configured to emit an ultrasonic signal at one or more predefined transmit times known to the transmitter and the receiver device. The receiver device is configured to receive the ultrasonic signal and to estimate a distance between the transmitter device and the receiver device based on the received ultra-sonic signal and the one or more predefined transmit times.

Underwater acoustic navigation systems and methods

An acoustic underwater navigation system is disclosed. For instance, an underwater receiver determines its position using signals broadcast from an array of acoustic transmitters located near the surface. The position of the array is measured using global positioning system (GPS) technology and the transmitters collectively produce an acoustic signal in which the position and attitude of the array and the GPS time of transmission are encoded. An underwater receiver which is synchronized with the GPS time uses the transmitted position and attitude of the array and the transmission time information to calculate its position.

DEVICE AND METHOD FOR ORIENTATION AND POSITIONING

Methods and devices for, among other applications, locating an emitter, comprises an array of receivers configured in different angular positions about the array relative to a corresponding array location axis, to receive a signal from the emitter having at least one burst containing a train of pulses, and at least one processor configured to profile pulse count values at each receiver, from one receiver to another in the array in relation to their respective angular positions, to designate a maximum peak angular position associated with a maximum pulse count value, and to attribute the peak angular position to an angular emitter location. 1providing a plurality of spaced receivers, including a group of receivers in respective locating signal-receiving angular positions, each of the receivers having an angular position coordinate value, stored in memory, associated with a designated angle of the receiver relative to a reference axis;enabling each receiver in the group of receivers to receive at least one locating signal from the locating signal emitter, the locating signal including, at least in part, a plurality of pulses in at least one train of pulses; process the locating signal received at each receiver in the group of receivers, to form a pulse count value in relation to a count of pulses above a pulse strength threshold;', 'form a pulse count profile whose coordinates include each pulse count value and the corresponding angular location accessed from memory; and to', 'attribute a designated angular position coordinate value corresponding to a maximum pulse count value in the pulse count profile as a location value representative of at least the heading of the emitter., 'enabling at least one locator processor, in communication with the spaced receivers, at a first clock increment, to. A method for a locator configuration to locate a locating signal emitter, comprising: The entire subject matter, including materials submitted at filing, of the following ...

SYSTEM AND METHOD FOR PROCESSING TRAFFIC SOUND DATA TO PROVIDE DRIVER ASSISTANCE

Various aspects of a system and method to process traffic sound data to provide in-vehicle driver assistance are disclosed herein. The system includes one or more circuits in an electronic control unit (ECU) of a first vehicle. The one or more circuits in the ECU are configured to receive sound data captured by two or more audio-input devices associated with the first vehicle. The sound data corresponds to sound emanated from one or more other vehicles. Thereafter, a relative position (distance and/or angle) of the first vehicle from a second vehicle of the one or more other vehicles is determined based on the received sound data. Further, an in-vehicle alert is generated for the first vehicle based on the determined relative position. The in-vehicle alert comprises a virtual sound representative of sound emanated from the second vehicle. 1. A system for providing in-vehicle driver assistance comprising: receive sound data captured by two or more audio-input devices associated with said first vehicle, wherein said sound data corresponds to sound emanated from one or more other vehicles;', 'determine a distance of said first vehicle from a second vehicle of said one or more other vehicles based on said received sound data; and', 'generate an in-vehicle alert for said first vehicle based on said determined distance, wherein said in-vehicle alert comprises a virtual sound representative of sound emanated from said second vehicle., 'one or more circuits in an electronic control unit (ECU) of a first vehicle, said one or more circuits being configured to2. The system according to claim 1 , wherein said first vehicle includes: a first set of audio-output devices associated with a driver of said first vehicle claim 1 , and a second set of audio-output devices associated with said driver and one or more co-passengers of said first vehicle.3. The system according to claim 2 , wherein said in-vehicle alert is reproduced via said first set of audio-output devices associated ...

CONTROL SYSTEM FOR VEHICLE

A control system for a vehicle includes a portable authentication terminal configured to authenticate a user who carries the portable authentication terminal, and a vehicle configured to communicate with the portable authentication terminal. The vehicle includes a sound generation unit configured to generate a predetermined sound within a vehicle cabin, an information reception unit configured to receive information transmitted from the portable authentication terminal, and a determination unit configured to determine whether the portable authentication terminal is within the cabin based on the received information. The portable authentication terminal includes a sound collection unit configured to collect a sound, and an information transmission unit configured to transmit information based on the collected sound to the vehicle. The determination unit is configured to determine whether the portable authentication terminal is within the cabin based on whether the received information is information based on the sound generated by the sound generation unit. 1. A control system for a vehicle , the control system comprising:a portable authentication terminal configured to be able to authenticate a user who carries the portable authentication terminal; anda vehicle configured to communicate with the portable authentication terminal, wherein: a sound generation unit configured to generate a predetermined sound within a vehicle cabin,', 'an information reception unit configured to receive information transmitted from the portable authentication terminal, and', 'a determination unit configured to determine whether the portable authentication terminal is within the vehicle cabin based on the information received by the information reception unit;, 'the vehicle includes'} a sound collection unit configured to collect a sound, and', 'an information transmission unit configured to transmit information based on the sound collected by the sound collection unit to the vehicle; ...

Approaching vehicle detecting system and approaching vehicle detecting method

An approaching vehicle detecting system that detects an approaching vehicle on the basis of sounds collected by a plurality of sound collectors mounted on a host vehicle determines whether a transverse moving direction of a sound source detected by the plurality of sound collectors is a direction approaching the host vehicle, determines whether a vertical position of the sound source detected using the plurality of sound collectors is in the same plane as that of the host vehicle, and detects that sound source as the approaching vehicle when it is determined that the transverse moving direction of the sound source is the direction approaching the host vehicle and the vertical position of the sound source is in the same plane as that of the host vehicle.

ESTIMATING DISTANCES BETWEEN DEVICES

A mobile recording device comprises means for detecting an audio signal emitted by the first device and means for measuring a strength of the audio signal. A server or the mobile comprises means for using the measured signal strength to estimate a distance between the first and second devices. A server comprises means for storing first and second collections of data sets, each of the data sets of the first collection comprising an emission time stamp, each of the data sets of the second collection comprising a reception time stamp and data indicative of a received signal strength; means for using emission time stamps and reception time stamps of the data sets to identify a data set of the first collection that corresponds to a data set of the second collection; and means for using the data indicative of the signal strength from the identified data set of the second collection to estimate the distance between devices that are sources of the identified data sets. 168-. (canceled)69. A method of estimating a distance between a first device and a second device , the method comprising the second device:detecting an audio signal emitted by the first device;measuring a strength of the audio signal; andusing the measured signal strength to estimate a distance between the first and second devices.70. The method of claim 69 , wherein detecting an audio signal comprises detecting a sinusoidal audio signal emitted by the first device at a specific frequency.71. The method of claim 70 , wherein detecting a sinusoidal audio signal comprises detecting using the Goertzel algorithm.72. The method of claim 69 , wherein detecting an audio signal comprises detecting a tonal signal with a frequency that varies with time.73. The method of claim 69 , wherein detecting an audio signal comprises detecting an audio signal with tonal content at plural frequencies.74. The method of claim 69 , further comprising mapping distance to a textual location.75. The method of claim 69 , comprising ...

APPARATUS AND METHOD FOR REDUCING COLLISION RISKS

An apparatus and a method for reducing collision risks between an entity and at least an obstacle, wherein the apparatus includes a transmitter adapted to emit a first beacon signal apt to avoid a collision, a receiver adapted to receive at least a second beacon signal that can be emitted by another apparatus which could dangerously approach to the apparatus, a processor configured for detecting at least the second beacon signal received through the receiver, detecting at least a property of at least the second beacon signal, determining, on the basis of the at least one property of the second beacon signal, at least a property of the first beacon signal, and emitting the first beacon signal through the transmitter in order to reduce collision risks. 2. The apparatus according to claim 1 , wherein said at least one property of said first beacon signal comprises first timing information defining the timing of said first beacon signal claim 1 , and said at least one property of said second beacon signal comprises second timing information defining the timing of the second beacon signal.3. The apparatus according to claim 2 , wherein said processing means is configured for determining claim 2 , on the basis of said second timing information claim 2 , the first timing information so that the first and second beacon signals do not overlap.4. The apparatus according to claim 1 , wherein said at least one property of said first beacon signal comprises first channel information defining a first sequence of communication bands in which the first beacon signal will be emitted claim 1 , and said at least one property of said second beacon signal comprises second channel information defining a second sequence of communication bands on which the second beacon signal has been received.5. The apparatus according to claim 4 , wherein said processing means is configured for determining claim 4 , on the basis of said second sequence of communication bands claim 4 , the first sequence ...

Method for determining or verifying spatial relations in a loudspeaker system

A method for determining spatial relations in a loudspeaker system comprising a central controller, multiple loudspeakers and multiple microphones. The method comprises using the multiple loudspeakers to produce sound and using the multiple microphones to measure the produced sound. Spatial relations between the loudspeakers are determined based on the measured sound, and the multiple loudspeakers are assigned to loudspeaker zones based on the determined spatial relations. Audio of the multiple loudspeakers is controlled in accordance with the assigned loudspeaker zones. Further, a method for verifying the installation of such a loudspeaker system, and a loudspeaker system with zoning and/or verification.

SYSTEMS, APPARATUSES, AND METHODS FOR ACOUSTIC MOTION TRACKING

Systems and methods for facilitating acoustic-based localization and motion tracking in the presence of multipath, wherein, in operation, acoustic signals are transmitted from a speaker to a microphone array, a processor coupled to the microphone array calculates the 1 D distance between a microphone and/or each microphones of the microphone array and the speaker of a user device by first filtering out multipath signals with large time-of-arrival values relative to the time-of-arrival value of the direct path signal, then extracting out the phase value of the residual multipath signals and direct path signal, using the calculated 1 D distances, the processor may then calculate the intersection of the 1 D distances to determine the 3D location of the speaker to enable sub-millimeter accuracy of 1 D distance between a microphone of a microphone array and a speaker of a user device to enable smaller separation between the microphones of the microphone array. 1. A system comprising:a speaker configured to transmit an acoustic signal having multiple frequencies over time;a microphone array configured to receive a received signal based on the acoustic signal, the microphone array comprising a plurality of microphones; anda processor coupled to the microphone array, the processor configured to calculate a distance between the speaker and at least one microphone of the plurality of microphones, wherein the calculating is based at least on a phase of the received signal.2. The system of claim 1 , wherein the received signal includes a direct path signal and a plurality of multipath signals.3. The system of claim 2 , wherein the calculating includes calculating time arrival for the direct path signal based on the phase of the received signal.4. The system of claim 2 , wherein the processor is further configured to filter the received signal to remove a subset of the plurality of the multipath signals.5. The system of claim 1 , wherein the processor is further configured to ...

Laser processing apparatus, laser processing method and distance measurement method

According to an embodiment, a laser processing apparatus has: a laser light source; a light collector; a water nozzle; a sound sensor; a timer; and a distance calculator. The light collector collects the laser light on a workpiece. The water nozzle supplies a water stream to a surface to be treated of the workpiece. The sound sensor is provided at a predetermined position relative to at least one of the water nozzle and the light collector, and receives a sound coming from the surface to be treated. The timer detects a detected time width from a reference time point to a time point when the sound sensor receives the sound. The distance calculator calculates a distance from one of the water nozzle and the light collector to the surface to be processed.

Measuring method for measuring laser scanning velocity

Provided is a measuring method for measuring laser scanning velocity for a laser beam machining apparatus. The laser beam machining apparatus includes a mirror, and is configured to process a work by irradiating laser. The laser is irradiated by operating the mirror. The measuring method includes measuring processing sound of the work by the laser using the laser beam machining apparatus. Further, the measuring method includes calculating scanning velocity of the laser by analyzing a frequency of the measured processing sound using the laser beam machining apparatus.

SPEAKER APPARATUS, AUDIO DATA SUPPLY APPARATUS, AND AUDIO DATA REPRODUCTION SYSTEM

A speaker apparatus includes a measuring unit configured to measure a first distance to a detection object, the detection object existing on one side in a vertical direction substantially orthogonal to a sound radiation direction, and a second distance to a detection object, the detection object existing on another side in the vertical direction. 1. A speaker apparatus comprising a measuring unit configured to measure a first distance to a detection object , the detection object existing on one side in a vertical direction substantially orthogonal to a sound radiation direction , and a second distance to a detection object , the detection object existing on another side in the vertical direction.2. The speaker apparatus according to claim 1 , further comprising a communication unit configured to send positional information based on the first distance and the second distance to another apparatus by communication.3. The speaker apparatus according to claim 2 ,wherein the positional information is information indicating an arrangement pattern of the speaker apparatus in the vertical direction, andthe speaker apparatus further comprises an identification unit configured to identify the arrangement pattern on a basis of the first distance and the second distance.4. The speaker apparatus according to claim 3 , wherein the identification unit identifies the arrangement pattern according to a range of a distance to which the second distance belongs claim 3 , in a case where the first distance is substantially zero.5. The speaker apparatus according to claim 4 , wherein the identification unit determines that the arrangement pattern is a pattern in which the speaker apparatus is arranged at a ceiling face or in a vicinity thereof claim 4 , in a case where the second distance is substantially zero.6. The speaker apparatus according to claim 3 , further comprising a sound quality adjustment processing unit configured to perform sound quality adjustment processing for the ...

SYSTEM AND METHOD FOR ACOUSTIC VEHICLE LOCATION TRACKING

Techniques for acoustic vehicle location tracking are presented. In one embodiment, a processor receives, from a radio-frequency positioning system, measurements of a candidate location for a plurality of vehicles and receives, from a plurality of acoustic sensors, acoustic signals associated with a detected vehicle. The acoustic signals are compared to an acoustic vehicle signature library that includes acoustic information associated with the vehicles. Upon determining that the acoustic signals match acoustic information associated with a vehicle in the acoustic vehicle signature library, the measurements of the candidate location of the detected vehicle based on the radio-frequency signals are compared with a location of the vehicle based on the acoustic signals. Upon determining that the measurements of the candidate location are within a predetermined area of the location of the detected vehicle, the measurements are provided to a vehicle location database. 1. A system comprising:a radio-frequency positioning system;a plurality of acoustic sensors;a vehicle location database; andat least one processor in communication with the radio-frequency positioning system, the plurality of acoustic sensors, and the vehicle location database; receive, from the radio-frequency positioning system, signals associated with measurements of a candidate location for each vehicle of a plurality of vehicles;', 'receive, from the plurality of acoustic sensors, one or more acoustic signals associated with a detected vehicle of the plurality of vehicles;', 'compare the one or more acoustic signals to an acoustic vehicle signature library to determine whether the one or more acoustic signals match acoustic information associated with at least one vehicle of the plurality of vehicles, wherein the acoustic vehicle signature library includes a plurality of acoustic information associated with the plurality of vehicles;', 'upon determining that the one or more acoustic signals match ...

ENHANCED TIME OF ARRIVAL POSITIONING SYSTEM

Method, node, computer program, and computer program product in a wireless communication network, comprising a network communication unit with a medium access control layer (MAC-Layer), said node configured to calculate the Time of Arrival and/or Time of Flight based on a counted time from transmission of a response request message in the medium access control layer of said node to the corresponding arrival of a response to said response request message in the medium access control layer (MAC-Layer) of said node. 2. Method according to wherein said response request message is a Request-To-Send (RTS) message and said response is a Clear-To-Send (CTS) message.3. Method according to wherein claim 1 , said first node comprises sound means to receive and transmit acoustic or digital sound signals claim 1 , wherein after determining the distance between said first and second nodes claim 1 , said first node performs a method comprising:{'sub': 'A', 'transmitting a first acoustic or digital sound signal (S),'}{'sub': X', 'A, 'starting a counter (T) at transmission of the acoustic or digital sound signal (S),'}{'sub': 'B', 'receiving a second acoustic or digital sound signal (S),'}{'sub': X', 'B, 'stopping the counter (T) at reception of the second acoustic or digital sound signal (S),'}{'sub': 'X', 'determining based on the counter result (T) the distance between said first and second node.'}4. Method according to wherein claim 1 , said first node comprises sound means to receive and transmit acoustic or digital sound signals claim 1 , wherein after determining the distance between said first and second nodes claim 1 , said first node performs a method comprising:{'sub': 'A', 'transmitting a first acoustic or digital sound signal (S),'}{'sub': X', 'A, 'starting a counter (T) at transmission of the acoustic or digital sound signal (S),'}{'sub': 'B', 'receiving a second acoustic or digital sound signal (S),'}{'sub': X', 'B, 'stopping the counter (T) at reception of the second ...

Method and apparatus for ranging finding, orienting and/or positioning of single and/or multiple devices

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.

DEVICE AND METHOD FOR ORIENTATION AND POSITIONING

Methods and devices for, among other applications, locating an emitter, comprises an array of receivers configured in different angular positions about the array relative to a corresponding array location axis, to receive a signal from the emitter having at least one burst containing a train of pulses, and at least one processor configured to profile pulse count values at each receiver, from one receiver to another in the array in relation to their respective angular positions, to designate a maximum peak angular position associated with a maximum pulse count value, and to attribute the peak angular position to an angular emitter location. 1100-. (canceled)101. A system for locating an emitter , comprising:a plurality of spaced receivers, each of the receivers having an angular position coordinate value, stored in memory, associated with a designated angle of the receiver relative to a reference axis;each receiver configured to receive at least one locating signal from the emitter, the locating signal including, at least in part, a plurality of pulses in at least one train of pulses; process the locating signal received at each receiver in a group of receivers in respective locating signal-receiving positions, to form a pulse count value in relation to a count of pulses above a pulse strength threshold;', 'form a pulse count profile whose coordinates include the pulse count values and corresponding angular locations; and', 'attribute a designated angular position coordinate value, corresponding to a maximum pulse count value in the pulse count profile, as a location value representative of at least the heading of the emitter., 'at least one locator processor, in communication with the spaced receivers, the at least one locator processor configured to102. A system as defined in claim 101 , wherein the pulses in the train of pulses vary in pulse strength from one pulse to another claim 101 , the locator processor configured to attribute a range value to the locating ...

ADAPTIVE TRANSMITTER CLUSTER AREA FOR ULTRASONIC LOCATIONING SYSTEM

A system and method for ultrasonic locationing of a mobile device within an environment using an adaptive transmitter cluster area includes a first step of providing a plurality of fixed ultrasonic transmitters operable to be activated to provide active clusters of transmitters to service mobile devices within a predefined coverage area of the environment. A next step includes transmitting ultrasonic bursts by the transmitters to mobile communication devices to be located within the environment. A next step includes determining a location of mobile devices within the environment using the ultrasonic bursts. A next step includes establishing a density of active clusters within the environment. A next step includes adapting an area of each cluster in response to the active cluster density. 1. A system ultrasonic locationing of a mobile communication device within an environment using an adaptive transmitter cluster area , the system comprising:a plurality of fixed ultrasonic transmitters within the environment, the transmitters operable to transmit ultrasonic bursts to mobile communication devices to be located within the environment, the transmitters also operable to be activated to provide active clusters of transmitters each having a predefined coverage area; anda controller coupled to the transmitters and operable to activate transmitters for each cluster, the controller operable to determine a density of active clusters within the environment and adapt an area of each cluster in response to the active cluster density.2. The system of claim 1 , further comprising the controller locating a mobile communication device using the ultrasonic bursts; and wherein controller also adapts cluster area based on the location information.3. The system of claim 1 , wherein if the controller is operating the transmitters in clusters using the predefined cluster area claim 1 , the controller is further operable to periodically and temporarily increase cluster area to provide ...

ELECTRONIC DEVICE

Provided is an electronic device including a modulation unit () that modulates a sound signal to a modulation wave for a parametric speaker; an oscillator () to which the modulation wave is input; an equalizer () that corrects a frequency characteristic of a sound wave that is demodulated by the modulation wave; and a control unit () that selects a carrier frequency of the modulation wave and changes setting of the equalizer () on the basis of the selected carrier frequency. Thus, it is possible to provide the electronic device capable of correcting the frequency characteristic of the sound wave that is demodulated, for each carrier frequency of the modulation wave. 1. An electronic device comprising:a modulation unit that modulates a sound signal to a modulation wave for a parametric speaker;an oscillator to which the modulation wave is input;an equalizer that corrects a frequency characteristic of a sound wave that is demodulated by the modulation wave; anda control unit that selects a carrier frequency of the modulation wave and changes setting of the equalizer on the basis of the selected carrier frequency.2. The electronic device according to claim 1 , wherein the equalizer corrects the modulation wave to correct the frequency characteristic of the sound wave that is demodulated by the modulation wave.3. The electronic device according to claim 1 , wherein the equalizer corrects the sound signal to correct the frequency characteristic of the sound wave that is demodulated by the modulation wave.4. The electronic device according to claim 1 , further comprising:an imaging unit that images a user and a region around the user; anda determination unit that determines the presence or absence of a person in the region imaged by the imaging unit,wherein the control unit selects the carrier frequency on the basis of the presence or absence of a person in the region.5. The electronic device according to claim 1 , further comprising a distance calculation unit that ...

PROXIMITY DETECTION OF CANDIDATE COMPANION DISPLAY DEVICE IN SAME ROOM AS PRIMARY DISPLAY USING SONIC SIGNALING

A candidate companion screen device is located by a primary display device as being in the same room as the primary device using sonic signaling, and in response ancillary content related to content being shown on the primary display device is provided to the companion screen device. The ancillary content may be provided from the Internet based on information in the content being presented on the primary display device by, e.g., providing a link to a website to the companion device. 1. A device comprising:at least one computer memory that is not a transitory signal and that comprises instructions executable by at least one processor for:determining whether a candidate companion screen device (CCSD) is a candidate for receiving ancillary content related to primary content presented by a primary display device (PDD) at least in part by:sending a wireless message to the CCSD to emit a specific sound;responsive to receiving from the CCSD the specification sound,causing ancillary content related to the primary content to be provided to the CCSD for presentation of the ancillary content thereon, and/or causing a response message regarding accessing ancillary content to be provided to the CCSD for presentation of the message thereon; andresponsive to not receiving from the CCSD the specific sound, not causing the ancillary content or response message to be presented on the CCSD.2. The device of claim 1 , wherein the device is implemented by the PDD.3. The device of claim 1 , wherein the wireless message is sent using Bluetooth.4. The device of claim 1 , wherein the wireless message is sent using Wi-Fi.5. The device of claim 1 , wherein the wireless message is sonic and the response message is sonic.6. The device of claim 1 , wherein the device is implemented by the CCSD.7. A device comprising:at least one computer readable storage medium comprising instructions executable by a processor for:determining whether plural candidate companion screen devices (CC SD) respond to a ...

METHOD AND SYSTEM FOR GUIDING AN AUTONOMOUS VEHICLE

A method and system for guiding a self-driving vehicle. The vehicle comprises an ultrasound-based proximity sensing system. The method comprises determining a location and an orientation of the vehicle in a predetermined coordinate system; in the vehicle, receiving a predetermined route from the traffic control unit; by a vehicle control unit, controlling the vehicle to travel along the predetermined route while estimating a vehicle travel path; receiving an ultrasound signal from a beacon having a known location in the predetermined coordinate system, wherein the ultrasound signal transmitted by the beacon uniquely identifies the beacon location; determining a relative position of the vehicle in relation to the beacon by means of ultrasound signals transmitted between the beacon and the vehicle; and determining a location of the vehicle in the predetermined coordinate system based on the determined relative position of the vehicle and the known location of the beacon. 1. A method for guiding a self-driving vehicle:the vehicle comprising an ultrasound-based proximity sensing system comprising a plurality of ultrasound sensors and a communication device for communication with a traffic control unit;the method comprising:determining a location and an orientation of the vehicle in a predetermined coordinate system;in the vehicle, receiving a predetermined route from the traffic control unit;by a vehicle control unit, controlling the vehicle to travel along the predetermined route while estimating a vehicle travel path;receiving an ultrasound signal from a beacon having a known location in the predetermined coordinate system, wherein the ultrasound signal transmitted by the beacon uniquely identifies the beacon location;determining a relative position of the vehicle in relation to the beacon by means of ultrasound signals transmitted between the beacon and the vehicle; anddetermining a location of the vehicle in the predetermined coordinate system based on the ...

Wake and shockwave gunshot detection

Detection of a trajectory of a supersonic projectile is carried out derived from a plurality of acoustic detection signals. From these acoustic detection signals, two or more shockwave-derived trajectory estimates can be derived. Further, a wake derived trajectory bearing estimate can be derived, from which disambiguation of the shockwave-derived trajectory estimates can be effected. 1. A method of detecting trajectory information for a supersonic projectile , comprising:collecting acoustic detection signals from an array of detection microphones;determining from at least one of the acoustic detection signals the existence of an acoustic signal characteristic of a supersonic projectile passing on a trajectory nearby;processing a shockwave portion of each acoustic detection signal, to determine first and second shockwave-based estimates of the trajectory of the supersonic projectile;processing a wake portion of each acoustic detection signal, the wake portion being after the shockwave portion, to determine a wake-based estimate of the trajectory of the supersonic projectile; andresolving the first and second shockwave-based estimates using the wake-based estimate to determine a disambiguated estimate of the trajectory of the supersonic projectile.2. A method in accordance with wherein the processing of the wake portion comprises processing within a frequency range selected to distinguish from an external noise source.3. A method in accordance with wherein the frequency range has a lower bound of at least 1 kHz.4. A method in accordance with wherein the processing of the wake portion comprises forming a series of data blocks for each acoustic detection signal claim 1 , filtering said data blocks claim 1 , and converting said filtered data blocks into the frequency domain.5. A method in accordance with wherein the processing of the wake portion further comprises deriving a series of bearing estimates from the frequency domain filtered data blocks.6. A method in ...

LOCATION DETERMINATION USING ACOUSTIC MODELS

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. 1. A computer-implemented method for determining a location of a mobile computing device in an acoustic environment associated with an acoustic real-time locating system , the method comprising:receiving, by one or more computing devices, acoustic signals from one or more transmitting devices associated with a real-time locating system;estimating one or more environment response functions from the received acoustic signals;generating one or more model path traces using an acoustic model of the environment, wherein the acoustic model specifies a first set of transmitter locations within the acoustic environment;comparing, by the one or more computing devices, the one or more model path traces associated with the first set of transmitter locations to the one or more estimated environment response functions; andestimating, by the one or more computing devices, a location of the mobile computing device based at least in part on the comparison of one or more model path traces to the one or more estimated environment response functions.2. The computer-implemented method of claim 1 , further comprising: selecting a set of peaks from the received acoustic signals; and', ' ...

DISPLAY DEVICE AND REMOTE CONTROL DEVICE, DISPLAY SYSTEM COMPRISING SAME AND METHOD FOR CALCULATING DISTANCE THEREOF

A display device is disclosed. The display device comprises: a signal reception unit; a communication unit for communicating with a remote control device; a storage unit for storing sound data; a speaker; and a processor for playing a sound and outputting the same through the speaker when a specific remote control signal transmitted from the remote control device is received through the signal reception unit, wherein the processor receives, from the remote control device and through the communication unit, recording data in which the point in time, at which the sound is received by the remote control device, is recorded, thereby enabling the distance between the display device and the remote control device to be calculated on the basis of the recording data. 1. A display device comprising:a signal receiver;a communicator;a storage storing sound data;a speaker; anda processor configured to, based on a specific remote control signal sent from a remote control device through the communicator and received by the signal receiver, reproduce the sound data and output sound through the speaker,wherein the processor is configured to receive recorded data of the sound recorded by the remote control device from the remote control device through the communicator, and calculate a distance between the display device and the remote control device based on the recorded data.2. The display device as claimed in claim 1 , wherein the processor is configured to calculate the distance by calculating the total time required by detecting a first time point at which the remote control signal is sent and a second time point at which the sound is received at the remote control device claim 1 , respectively claim 1 , from the recorded data claim 1 , calculating a delay time required to output the sound after receiving the remote control signal claim 1 , and multiplying a subtraction result value obtained by subtracting the delay time from the total time required by a sound speed.3. The ...

Method for Establishing Wireless Communication Connection and Terminal Device

A method for establishing a wireless communication connection, including: obtaining direction information entered by a user; sending an ultrasonic signal in a direction indicated by the direction information, so that a target terminal device located within a transmission range of the ultrasonic signal receives the ultrasonic signal; receiving a target response signal returned by the target terminal device for the ultrasonic signal; and establishing a wireless communication connection to the target terminal device according to the target response signal.

METHOD AND APPARATUS FOR RANGING FINDING, ORIENTING AND/OR POSITIONING OF SINGLE AND/OR MULTIPLE DEVICES

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. 1. A device for determining a distance travelled by a signal travelling from a signal transmitter and the device , comprising a receiver operable to receive the signal from the signal transmitter , the signal having at least one train of pulses , the train of pulses including a series of preamble pulses having a substantially constant pulse strength , and a series of body pulses , each body pulse having a pulse strength which varies across the series of body pulses according to a designated pulse strength profile , the receiver being operable to receive at least a subset of the series of the body pulses and to associate the received body pulses in the subset , whose pulse strength exceeds a designated pulse strength threshold value , with a value representative of the distance travelled , wherein the receiver is configured to become active when the designated pulse strength threshold value is exceeded by the pulse strength of a received body pulse in the subset , and to become inactive when the designated pulse strength threshold value is not exceeded by the pulse strength of a received body pulse in the subset.2. The device as defined in ...

METHOD FOR OBTAINING HORIZONTAL LONGITUDINAL CORRELATION OF DEEP-SEA GREAT-DEPTH SOUND FIELD

The present invention relates to a method for obtaining horizontal longitudinal correlation of a deep-sea great-depth sound field. Two testing positions with the same depth and different distances are selected near a deep-sea bottom; time delay differences between a direct wave of a deep sound source in a certain depth reaching two receiving positions and a surface-reflected wave are calculated according to a ray model; one testing position is fixed, and a horizontal spacing between the two positions is continuously changed to recalculate the time delay differences in different positions; and the time delay differences are substituted into a ray theory-based calculation formula of horizontal longitudinal correlation of the deep-sea great-depth sound field to obtain a change rule of the horizontal longitudinal correlation of a target region. The present invention greatly reduces amount of calculation, and is easy in engineering practice. 2. The method for obtaining the horizontal longitudinal correlation of the deep-sea great-depth sound field according to claim 1 , wherein one testing position is fixed; the distance of the other testing position is changed along a horizontal direction claim 1 , so that a horizontal longitudinal spacing Δr of the two receiving positions is changed; and then step 2 and step 3 are repeated to obtain a change rule of the correlation of the sound field along with the horizontal longitudinal spacing when a reference receiving distance is r.3. The method for obtaining the horizontal longitudinal correlation of the deep-sea great-depth sound field according to claim 1 , wherein the reference receiving distance r is changed claim 1 , and then step 2 and step 3 are repeated to obtain the change rule of the correlation of the sound field at different receiving distances.4. The method for obtaining the horizontal longitudinal correlation of the deep-sea great-depth sound field according to claim 1 , wherein a change range of the sound source ...

ACOUSTIC DISTANCE MEASURING FOR A TRAWL

A method for determining distance between a vessel and at least one sensor module arranged on fishing gear being towed by the vessel, the at least one sensor module comprising a transmitter connected to a clock and a receiver connected to a clock being arranged on the vessel, comprises time-synchronising the clocks connected to transmitter and receiver with each other, transmitting a series of signals from the transmitter at a predetermined fixed time interval, receiving in the receiver the signals from the transmitter, and, on the basis of the time of the reception of the signals, calculating the distance between the transmitter and the receiver. 2. A method according to claim I , wherein the time synchronisation of the clocks is carried out on the vessel before the sensor modules are deployed in the sea.3. A method according to claim 1 , wherein the time synchronisation of the clocks is carried out after the sensor modules have been deployed in the sea.4. A method according to claim 1 , wherein the sensor module comprises measuring sensors for measuring the state of the sensor module claim 1 , such as its depth in the sea claim 1 , distance to other sensor modules.5. A method according to claim 4 , wherein the predetermined fixed time interval is corrected by using measured data from one or more sensor modules.6. A method according to claim 4 , wherein the measured data from measuring sensors are used for calculating distance.7. A method according to one of the preceding claims claim 4 , comprising measuring the temperature of the water and where calculation of distance is corrected by taking into account the speed of sound at the measured temperature.8. A method according to claim 1 , wherein the series of signals transmitted from the transmitter comprises a time signal. The invention relates to a method for determining distance between a vessel and at least one sensor module arranged on fishing gear being towed by the vessel.A number of sensor modules are ...

METHOD, SYSTEM, AND APPARATUS FOR MEASURING THE DEPTH OF A BODY OF WATER AHEAD OF THE USER'S POSITION/LOCATION

This application describes a method, system, and apparatus for measuring the depth of a body of water ahead of the user's location or position. The user can be a driver of a vehicle. The apparatus includes a fording depth sensor, a second fording depth sensor, a proximity sensor to determine road angle or position ahead of the vehicle, wherein the proximity sensor is designed to operate underneath the water surface and a control unit configured to use signals of the wading depth and sensors to compute a wading depth at a location ahead of the direction of vehicle movement and/or to compute a distance ahead of the direction of vehicle movement to maximum wading depth. A method of building the apparatus, system, and vehicle is also provided. 1. A method comprising:a. receiving a signal from at least three sensors with at least two types of sensors at a first sensor location, wherein a portion of the at least three sensors are located on the front half of the vehicle indicating presence of water, first water fording depth at the first sensor location on the vehicle, and proximity sensor to determine road angle ahead of the vehicle, wherein the proximity sensor is designed to operate underneath the water surface;b. receiving a signal from a second sensor indicating second water fording depth at the second location on the vehicle to determine attitude of the vehicle and the angle of the road ahead; andc. detecting based upon comparing the angle between the first current water fording and the second current water fording depth, attitude of the vehicle and the angle of the road ahead and a distance in advance of the location of the vehicle and/or a maximum wading depth of the vehicle, a depth of water at a location ahead of the vehicle substantially in the direction of vehicle movement and/or the distance, ahead of the vehicle substantially in the direction of vehicle movement, to determine future maximum fording depth.2. A method of claim 1 , wherein the detecting is ...

FORWARD ACOUSTIC SCATTERING BASED DOUBLE-TRANSMITTER AND DOUBLE-RECEIVER NETWORKING TARGET DETECTION SYSTEM AND METHOD THEREOF

The present invention relates to a forward acoustic scattering based double-transmitter and double-receiver networking target detection system and method thereof. Two transmitting ends and two receiving ends are adopted, anchored at a sea bottom, and arranged in a parallelogram layout. Time of a target crossing transmitting-receiving connection lines is extracted by adopting a proper direct wave suppression method; and unknown parameters of the horizontal distance, the target velocity and the included angle between the target track and the transmitting-receiving connection lines are estimated at corresponding moving time intervals when the target crosses the four transmitting-receiving connection lines according to different crossing modes. An arrangement mode is simple and flexible, and monitoring of sea areas and sea channels can be realized. The information of the time of the target crossing the transmitting-receiving connection lines, extracted by the method, is more accurate and reliable. 1. A forward acoustic scattering based double-transmitter and double-receiver networking target detection system , comprising:two transmitting ends and two receiving ends;{'sub': x1', 'x2', 'x1', 'x2', 'x1', 'x1', 'x1', 'x2', 'x2', 'x2', 'x2', 'x1', 'x1', 'x2', 'x2', 'x1', 'x1', 'x1', 'x1', 'x2', 'x1', 'x2', 'x2', 'x2', 'x1', 'x1', 'x1', 'x2', 'x2', 'x1', 'x2', 'x2, 'wherein the two transmitting ends and the two receiving ends are anchored at a sea bottom, and formed in a parallelogram layout; the two transmitting ends are respectively marked as Tand T; the two receiving ends are respectively marked as Rand R; T-R, R-R, R-Tand T-Tform four edges of the parallelogram; T-Rand T-Rare two diagonal lines of the parallelogram; a length of T-Ris marked as l; a length of R-Ris marked as h; an included angle between T-Tand T-Ris marked as α; and four transmitting-receiving connection lines are formed: T-R, T-R, T-Rand T-R; and depths of the transmitting ends and the receiving ends are ...

Swimming Speedometer System with Near-Eye Display

An apparatus and method for measuring a swimmer's speed and conveying the speed to the swimmer in real time includes a plurality of ultrasonic beacons each having a transducer configured to emit ultrasonic signals in a pool or other body of water within which the swimmer is swimming. A wearable, waterproof, ultrasonic receiver worn by the swimmer, receives the ultrasonic signals and generates corresponding signal data. The receiver's microcontroller captures and uses the signal data to calculate the swimmer's position and speed in real time, and conveys this information to a wearable, waterproof, user interface device worn by the swimmer, the user interface device including a near-eye display disposed on the swimmer's googles. 1. An apparatus for measuring a swimmer's speed and conveying the speed to the swimmer in real time , the apparatus comprising:a plurality of ultrasonic beacons each having a transducer configured to emit ultrasonic signals in a body of water within which the swimmer is swimming;a wearable, waterproof, ultrasonic receiver configured for being worn by the swimmer, the receiver configured to receive the ultrasonic signals emitted by the beacons and generate corresponding signal data;the receiver including a microcontroller communicably coupled thereto, the microcontroller configured to capture and use the signal data to calculate the swimmer's position and speed in real time;a wearable, waterproof, user interface device configured for being worn by the swimmer, the wearable user interface being communicably coupled to the microcontroller and configured to convey the swimmer's speed to the swimmer in real time, using one or more of visual, audible, and tactile output;the user interface device including a near-eye display configured for being disposed on swim googles worn by the swimmer.2. The apparatus of claim 1 , further comprising a radio communicably coupled to the microcontroller and configured to transmit the swimmer's speed to recipients ...

Optical microscope and method for detecting lens immersion

An optical microscope and method for detecting lens immersion in optical microscopy includes an ultrasound circuit acoustically coupled to both an objective lens and a sample of an optical microscope, the ultrasound circuit comprising an ultrasound transmitter and an ultrasound receiver. The optical microscope and method includes transmitting an ultrasound pulse from the ultrasound transmitter to the ultrasound receiver, determining that a transit time of the ultrasound pulse is less than a threshold time, and providing an output signal from the pulse discriminator indicating that the ultrasound pulse is less than the threshold time.

Sound source detection system

A sound source detection system for detecting a sound source (e.g., running sound of a vehicle) based on sound collected by microphones extracts characteristic amounts from the sound collected by the microphones, sets a plurality of classes according to the position of the sound source by a multi-class pattern recognition method (e.g., multi-class SVM) using the characteristic amounts, extracts characteristic amounts from sound collected by the microphones for detection of a sound source, determines a class to which the extracted characteristic amounts belong, from the preset plurality of classes, and estimates the sound source based on the class.

DETECTION AND SIGNAL ISOLATION OF INDIVIDUAL VEHICLE SIGNATURES

A system for isolating signals from individual vehicles. An array of sensors generates a plurality of time records. The time records are transformed into spectrogram structures, and for each time-frequency point in the spectrogram structures, a bearing is calculated, to form a movement structure. A Hough transform is used to fit a movement model to the movement structure, to form a Hough transform structure. Peaks in the Hough transform structure correspond to vehicles and their position in the Hough transform structure correspond to motion parameters, such as the velocity of the vehicle, and the time of closest approach of the vehicle to the array of acoustic sensors. A model of the motion of a vehicle is then used to associate, with the vehicle, points (e.g., structure elements in the spectrogram structures) from the data. 1. A system for detecting objects moving along a path , the system comprising:a plurality of sensors; anda processing circuit connected to the sensors, receive a plurality of digital time records of acoustic data, each representing a signal sensed by a respective one of the plurality of sensors,', 'form a plurality of complex spectrogram structures, each of the complex spectrogram structures being formed from a respective one of the digital time records, each element of the complex spectrogram structure having a frequency coordinate and a time coordinate,', 'form a movement structure from the complex spectrogram structures, each element of the movement structure corresponding to a respective element of the complex spectrogram structure and having a value corresponding to an angle of arrival of an acoustic wave at the frequency of the frequency coordinate of the element of the movement structure,', 'fit a movement model to the movement structure, the movement model representing an object moving with constant velocity along the path; and', 'infer a velocity of a first object from the fit., 'the processing circuit being configured to2. The system ...

Position Determination

In a positioning system, a plurality of transmitter units () transmit respective transmitter-specific identification signals at intervals, which are received at a mobile receiver unit (). A processing system () identifies the transmitter unit that transmitted each received identification signal, and, for each signal, determines range data from time of arrival data and determines distance data from Doppler shift information. The range data and distance data are compared to determine range error data. A position estimate for the mobile receiver unit () is determined by solving an optimisation problem using range estimates determined for the plurality of transmitter units, weighted in dependence on the range error data. 1. A processing system for use in a positioning system , the positioning system comprising a mobile receiver unit and a plurality of transmitter units , each configured to transmit respective transmitter-specific identification signals at intervals ,wherein the processing system is configured to identify the respective transmitter unit that transmitted each received identification signal, determine a time of arrival of each of a plurality of the identification signals received by the mobile receiver unit from the transmitter unit during a time window;', 'process the times of arrival to determine range data representative of a plurality of distances between the transmitter unit and the mobile receiver unit at intervals during the time window;', 'determine Doppler-shift information from the plurality of received identification signals;', 'use the Doppler-shift information to determine velocity data representative of one or more values of a component of velocity of the mobile receiver unit during the time window;', 'perform an integration operation on the velocity data to determine distance data representative of one or more values of a component of distance travelled by the mobile receiver unit over one or more intervals during the time window;', 'perform ...

DISTANCE ESTIMATION DEVICE AND METHOD USING THE DIFFERENCE OF WAVE SPEED BETWEEN WAVES

The present disclosure provides a distance estimation device, including a wave signal detection unit configured to measure different types of waves, respectively, to detect different wave signals, a time delay estimation unit configured to produce a correlation coefficient from the detected different wave signals, and computes an arrival time difference using the correlation coefficient, and a distance calculation unit configured to estimate the distance of a target object using an arrival time difference for each of the different types of waves. 1. A distance estimation device , comprising:a wave signal detection unit configured to measure different types of waves, respectively, to detect different wave signals;a time delay estimation unit configured to produce a correlation coefficient from the detected different wave signals, and computes an arrival time difference using the correlation coefficient; anda distance calculation unit configured to estimate the distance of a target object using an arrival time difference for each of the different types of waves.2. The distance estimation device of claim 1 , wherein the wave signal detection unit comprises:a plurality of wave signal detectors formed to measure and detect the different types of waves, respectively; anda signal stabilization unit having a plurality of signal conditioners connected to the wave signal detectors, respectively, to stabilize each of the wave signals.3. The distance estimation device of claim 1 , further comprising:a signal processing unit configured to remove the noise of the detected wave signals and filter out signals in a specific frequency band transferring the same component signal.4. The distance estimation device of claim 3 , wherein the signal processing unit comprises:an analog signal processing unit configured to remove a noise signal and filter out signals in a specific frequency band for each of the wave signals transferred from the wave signal detection unit; anda digital signal ...

FREQUENCY-SHIFT DETERMINATION

A receiving apparatus () that can estimate a motion-induced frequency shift in a received signal comprises a processing system () and a receiver () configured to receive a signal comprising one or more instances of a transmitted signal. The processing system () is configured to generate data representative of a plurality of impulse response functions by deconvolving the received signal with each of a plurality of templates representative of the transmitted signal shifted in frequency by a different respective frequency shift. The processing system () is further configured to evaluate a signal-to-noise measure for each of the plurality of impulse response functions, and to identify an impulse response function of the plurality of impulse response functions for which the signal-to-noise measure satisfies a peak criterion. 1. A receiving apparatus , comprising:a receiver configured to receive a signal comprising one or more instances of a transmitted signal; anda processing system,wherein the processing system is configured to:generate data representative of a plurality of impulse response functions by deconvolving the received signal with each of a plurality of templates, wherein each template is representative of the transmitted signal shifted in frequency by a different respective frequency shift;evaluate a signal-to-noise measure for each of the plurality of impulse response functions; andidentify an impulse response function of the plurality of impulse response functions for which the signal-to-noise measure satisfies a peak criterion.2. The receiving apparatus of claim 1 , wherein the receiver comprises an acoustic transducer and the received signal is an acoustic signal.3. The receiving apparatus of claim 1 , wherein each template comprises data representing a continuous-phase frequency-shift-key modulated transmitted signal.4. The receiving apparatus of claim 1 , wherein the processing system is configured to deconvolve the received signal with each of the ...

ULTRASONIC POSITION DETECTION SYSTEM

Tracking systems have been successfully applied to immersive simulation systems and virtual environment training in which portable devices (i.e., hand-held military equipment) within the immersive simulation system are tracked using time-of-fright recordings to triangulate each devices position. Until now, tracking systems have not used differential calculations to track these portable devices. The invention uses a single array of sensors mounted above the simulation area to communicate with small transmitters and emitters mounted on each portable device to generate position offsets for each portable device. 2. The immersive simulation environment according to claim 1 , wherein the sensor array processor is further configured to start a counter when the emitter sends the signal and stop the counter when a number of samples per tone reaches a sensor in the array to determine the z-position of the portable device.3. The immersive simulation environment according to claim 2 , wherein the portable device further comprises an accelerometer/gyroscope/compass device.4. The immersive simulation environment according to claim 1 , wherein the stationary sensor comprises three ultrasonic sensors claim 1 , comprising an x-axis sensor claim 1 , a y-axis sensor claim 1 , and a reference sensor.5. The immersive simulation environment according to claim 1 , wherein the at least one emitter is located on the stationary sensor array.6. (canceled)7. (canceled)8. The immersive simulation environment according to claim 1 , wherein the stationary sensor array is located at the top center of the dome.9. The immersive simulation environment according to claim 1 , wherein the immersive simulation environment is a simulated military environment.10. The immersive simulation environment according to claim 9 , wherein the portable device is a simulated military device.11. The immersive simulation system comp stem according to claim 1 , comprising at least two rear-mounted image projectors claim ...

Method for controlling functions according to distance measurement between electronic devices and electronic device implementing the same

A method for controlling functions according to a distance measurement between electronic devices and an electronic device implementing the same are disclosed. The method includes transmitting a sound transmission command from a first electronic device to a second electronic device; measuring a distance between the first electronic device and the second electronic device by identifying sound information and reception of sound transmitted from the second electronic device to the first electronic device; and comparing the measured distance and a predetermined user area, and deciding performance of a predefined function corresponding to the user area in the first electronic device.

System for fusing acoustic and inertial position determination

A synchronization system for an acoustic signal-based and inertial signal-based positioning system is provided that generates a magnetic field as a synchronization signal. The modulated magnetic synchronization signal is transmitted by a transmitter of the positioning system and received by the receiver of the positioning system. The receiver may make an acoustic position determination for the transmitter based on a received modulated synchronization signal and may make an inertial position determination for the transmitter based on the received inertial signal, such that the acoustic position determination and the inertial position determination are fused.

Motion Tracking with Reduced On-Body Sensors Set

A method of tracking the motion of a moving object having a plurality of linked segments is provided. The method uses a limited set of sensing units that are coupled to one or more of the segments to receive one or more sensor signals from the sensing units. Based on the sensor signals, the method estimates a 3D orientation and predicts a 3D position of the segments at a tracking module. The method further communicates the 3D orientation and the 3D position of the segments to a database module, and associates a pose of the object to the 3D orientation and the 3D position of the segments.

Sound source detecting method and detecting device

Provided are a detection method for a sound source and a detection device therefor, which are capable of accurately detecting the position of a sound source through use of measurement results of sound intensities. In the detection method, I all =√(I x 2 +I y 2 +I z 2 ), which is a total value of the sound intensities I x , I y , and I z in three axial directions (x-, y-, and z-axis directions) orthogonal to each other at a sound receiving point (P) in a sound field, is calculated, and then the position of the sound source is estimated after extracting the sound source by performing processing with averaged values within a predetermined peak width instead of the magnitude of a peak in a sound intensity waveform of the total value, or the position of the sound source is estimated after extracting the sound source with attention being given to a spatial travel speed of a sound intensity or a sound particle velocity of the total value.

Swimming Speedometer System with Near-Eye Display

An apparatus and method for measuring a swimmer's speed and conveying the speed to the swimmer in real time includes a plurality of ultrasonic beacons each having a transducer configured to emit ultrasonic signals in a pool or other body of water within which the swimmer is swimming. A wearable, waterproof, ultrasonic receiver worn by the swimmer, receives the ultrasonic signals and generates corresponding signal data. The receiver's microcontroller captures and uses the signal data to calculate the swimmer's position and speed in real time, and conveys this information to a wearable, waterproof, user interface device worn by the swimmer, the user interface device including a near-eye display disposed on the swimmer's googles. 1. An apparatus for measuring a swimmer's speed and conveying the speed to the swimmer in real time , the apparatus comprising:a plurality of ultrasonic beacons each having a transducer configured to emit ultrasonic signals in a body of water within which the swimmer is swimming;a wearable, waterproof, ultrasonic receiver configured for being worn by the swimmer, the receiver configured to receive the ultrasonic signals emitted by the beacons and generate corresponding signal data;the receiver including a microcontroller communicably coupled thereto, the microcontroller configured to capture and use the signal data to calculate the swimmer's position and speed in real time;a wearable, waterproof, user interface device configured for being worn by the swimmer, the wearable user interface being communicably coupled to the microcontroller and configured to convey the swimmer's speed to the swimmer in real time, using one or more of visual, audible, and tactile output;the user interface device including a near-eye display configured for being disposed on swim googles worn by the swimmer.2. The apparatus of claim 1 , further comprising a radio communicably coupled to the microcontroller and configured to transmit the swimmer's speed to recipients ...

METHOD FOR DETERMINING CHANGE IN DISTANCE, LOCATION PROMPTING METHOD AND APPARATUS AND SYSTEM THEREOF

A method for determining a change in a distance, a location prompting method and an apparatus and a system thereof are provided. The method includes: sending, by a receiving terminal, a paring request to a server for the server to forward the paring request to a transmitting terminal, and to allocate a frequency band for the receiving terminal and the transmitting terminal after the transmitting terminal accepts the paring request; acquiring, by the receiving terminal, an acoustic wave signal of a frequency sent by the transmitting terminal, wherein the frequency is determined by the transmitting terminal based on the allocated frequency band; determining, by the receiving terminal, a change in the acquired acoustic wave signal; and determining, by the receiving terminal, a change in a distance between the transmitting terminal and the receiving terminal according to the change in the acquired acoustic wave signal. 1. A method for determining a change in a distance , comprising:sending, by a receiving terminal, a paring request to a server for the server to forward the paring request to a transmitting terminal, and to allocate a frequency band for the receiving terminal and the transmitting terminal after the transmitting terminal accepts the paring request;acquiring, by the receiving terminal, an acoustic wave signal of a frequency sent by the transmitting terminal, wherein the frequency is determined by the transmitting terminal based on the allocated frequency band;determining, by the receiving terminal, a change in the acquired acoustic wave signal; anddetermining, by the receiving terminal, a change in a distance between the transmitting terminal and the receiving terminal according to the change in the acquired acoustic wave signal.2. The method according to claim 1 , wherein the determining a change in the acquired acoustic wave signal comprises:determining a change in energy of the acquired acoustic wave signal; andwherein the determining the change in the ...

METHOD AND SYSTEM OF ENVIRONMENT-SENSITIVE WAKE-ON-VOICE INITIATION USING ULTRASOUND

A system, article, and method of environment-sensitive wake-on-voice initiation uses ultrasound signals. 1. A computer-implemented method of speech recognition , comprising:receiving audio data of human voice audio to be monitored to detect one or more waking keywords;determining one or more environment indicators comprising using ultrasound to communicate among multiple ultrasound computing devices; andwaking one or more applications if the keywords are detected in the audio and depending on the one or more environment indicators.2. The method of wherein the environment indicators of at least one of the multiple ultrasound computing devices to indicate whether or not one or more other ultrasound computing devices most likely received the audio by using ultrasound to detect the presence of the one or more other ultrasound computing devices.3. The method of wherein the environment indicators indicate which computing device of the multiple ultrasound computing devices is closest to a source of the audio.4. The method of comprising determining which of the multiple ultrasound computing devices is closest to a source of the audio comprising using root-mean-square pressure (RMS) measurements of the audio data at individual ones of the ultrasound computing devices.5. The method of comprising determining which of the multiple ultrasound computing devices are in a same private network claim 1 , and analyzing ultrasound signals related to root-mean-square pressure (RMS) measurements only from ultrasound computing devices in the private network.6. The method of comprising determining which of the multiple ultrasound computing devices is in a same private network using non-audio wave computer network transmissions; and deactivating wake-on-voice speaker emission responses of individual ones of the multiple ultrasound computing devices on the private network except for a computing device determined to be closest to a source of the audio.7. The method of comprising receiving an ...

Mapping positions of devices using audio

Disclosed are methods and systems for determining distance between two or more mobile devices utilizing a sound emitted from each device such as a chirp. Each device may determine or receive an indication of a time reference for each instance the device emits or detects a chirp. Utilizing the time reference data, the distance between the two or more devices may be determined assuming the sound travels at a constant speed of 340.29 m/s. Techniques for disambiguating orientation of the devices relative to one another rare also disclosed. 1. A system , comprising: emit a first chirp from the first mobile device;', 'receive a first indication of the first chirp at a first time reference;', 'receive a first audio signal;', 'receive a second indication of a second chirp from a second mobile device at a second time reference within the first audio signal;', 'obtain an indication of a first distance between the first mobile device and the second mobile device based on the first time reference, the second time reference, a third time reference, and a fourth time reference, wherein the third time reference corresponds to a time at which the second mobile device emits the second chirp and the fourth time reference corresponds to a time at which the second mobile device receives the first chirp., 'a first mobile device configured to2. The system of claim 1 , the first mobile device further configured to:receive a third indication of the third time reference corresponding to when the second mobile device emits the second chirp;receive a fourth indication of the fourth time reference corresponding to when the second mobile device receives the first chirp; andcalculate the first distance between the first mobile device and the second mobile device based on the first time reference, the second time reference, the third time reference, and the fourth time reference.3. The system of claim 2 , the second mobile device further configured to send the third time reference and the fourth ...

MARINE SEISMIC VARIABLE DEPTH CONTROL METHOD AND DEVICE

A method of acoustic positioning determination includes detecting a temperature gradient profile across a depth of water, determining a level of a thermal boundary between an upper temperature level and a lower temperature level, and determining a distance from the thermal boundary to position the acoustic positioning device and positioning the acoustic positioning device at that location. 1. A method of acoustic positioning determination , comprising:detecting a temperature gradient profile across a depth of water;determining a level of a thermal boundary between an upper temperature level and a lower temperature level; anddetermining a distance from the thermal boundary to position the acoustic positioning device and positioning the acoustic positioning device at that location.2. The method of claim 1 , comprising providing a float that has connected thereto a support for the acoustic positioning device that is extendable and retractable to adjust the distance from the float that the transceiver is held from the float device.3. The method of claim 2 , wherein the support for the acoustic positioning device is a rigid structure extending below the float.4. The method of claim 3 , wherein the rigid structure is adjustable in length extended below the float.5. The method of claim 4 , wherein the support is telescoping in design.6. The method of claim 2 , wherein the support is a connector that extends from the float to the streamer and the acoustic positioning device is movable along the connector to vary the depth of the acoustic positioning device.7. The method of claim 1 , comprising locating the acoustic positioning device and the streamer below the thermal boundary.8. The method of claim 1 , comprising locating the acoustic positioning device and the streamer above the thermal boundary.9. A method of locating position determination claim 1 , comprising:locating an acoustic positioning device at a first depth and performing an acoustic position determination; ...

Method for determining distance between underwater acoustic devices

The invention consists of a method which comprises a plurality of steps for determining difference in distance from a reference point to at least two sensor modules 10, 20 that are located under water. The sensor modules 10, 20 comprise means for sending and receiving acoustic signals to each other and to a hydrophone 30 at the reference point. Connected to the hydrophone 30 is a calculating unit 40 that utilises arrival time of the received signals from the sensor modules to determine difference in distance from the sensor modules 10, 20 to the reference point.

LOCATION DETERMINATION USING ACOUSTIC MODELS

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. 1. A computer-implemented method for determining a location of a mobile computing device in an acoustic environment associated with an acoustic real-time locating system , the method comprising:receiving, by one or more computing devices, acoustic signals from one or more transmitting devices associated with a real-time locating system;estimating one or more environment response functions from the received acoustic signals;generating one or more model path traces using an acoustic model of the environment, wherein the acoustic model specifies a first set of transmitter locations within the acoustic environment;comparing, by the one or more computing devices, the one or more model path traces associated with the first set of transmitter locations to the one or more estimated environment response functions; andestimating, by the one or more computing devices, a location of the mobile computing device based at least in part on the comparison of one or more model path traces to the one or more estimated environment response functions.2. The computer-implemented method of claim 1 , further comprising: selecting a set of peaks from the received acoustic signals; and', ' ...

Submerged Vehicle Localization System and Method

An inexpensive acoustic beacon-type system suitable for the self-localization of one or more submergable secondary vehicles such as AUVs. A single beacon in a primary system periodically transmits an acoustic signal to the secondary vehicle. The acoustic signal is passively received by at least two receivers such as an AUV-mounted ultra-short baseline (USBL) array, which enables multiple vehicles to localize using just a single beacon. A controller (i) maintains time-synchronization with the primary system, (ii) develops a range estimate signal from measurements of received signals from at least two receivers and (iii) develops an azimuth-inclination estimation of likeliest angle-of-arrival of the primary signals, wherein the controller utilizes a plurality of coordinate frames to provide an estimate of secondary system location. 1. A localization system for at least one vehicle capable of submergence and movement within a liquid body , comprising:a primary system including a first positioning module configured to determine a location of the primary system, a signal generation and timing unit that generates periodic timed primary signals, and a submersible transmitter configured to transmit the primary signals through the liquid body; and at least two receivers to receive said primary signals; and', 'a controller that (i) maintains time-synchronization with the primary system, (ii) develops a range estimate signal from measurements of received signals from the at least two receivers and (iii) develops an azimuth-inclination estimation of likeliest angle-of-arrival of the primary signals, wherein the controller utilizes a plurality of coordinate frames to provide an estimate of secondary system location., 'at least one secondary system that is carried by the vehicle and includes2. The system of claim 1 , wherein the estimate of secondary system location is relative to the location of the primary system.3. The system of claim 1 , wherein the controller applies a ...

MOTOR VEHICLE HAVING A SOUND CAPTURE DEVICE

A motor vehicle having a sound capture device for the directionally dependent capture of external sound and providing an input signal representative of the external sound, an evaluation unit for evaluating the input signal and for providing an output signal representative of the input signal, and a loudspeaker assembly in the interior of the motor vehicle for outputting a sound signal consistent with the output signal. 1. A motor vehicle comprising:a sound capture device for directionally dependent capture of external sound and providing an input signal representative of the external sound;an evaluation unit for evaluating the input signal and for providing an output signal representative of the input signal; anda loudspeaker assembly in an interior of the motor vehicle for outputting a sound signal consistent with the output signal.2. The motor vehicle as claimed in claim 1 , wherein the sound capture device comprises a plurality of microphones.3. The motor vehicle as claimed in claim 1 , wherein the evaluation unit is configured to output the output signal on the basis of vehicle operating data.4. The motor vehicle as claimed in claim 3 , wherein the vehicle operating data have an actuation signal from a direction of travel indicator.5. The motor vehicle as claimed in claim 3 , wherein the vehicle operating data have a gear selection or direction of travel selection.6. The motor vehicle as claimed in claim 3 , wherein the vehicle operating data have data from a navigation system.7. The motor vehicle as claimed in claim 3 , wherein the vehicle operating data have data from a driver assistance system.8. The motor vehicle as claimed in claim 1 , wherein the evaluation unit is configured to evaluate the input signal in order to determine a distance of a sound source and to provide an output signal that leads to a sound signal having a volume consistent with the distance.9. The motor vehicle as claimed in claim 1 , wherein the evaluation unit is configured to evaluate ...

SYSTEM AND METHOD FOR DETECTING AERIAL VEHICLE POSITION AND VELOCITY VIA SOUND

A system for determining a signal source position and velocity, and methods for manufacturing and using same are provided. An exemplary method includes determining a signal source position and velocity by performing a direction analysis on a plurality of audio signals and performing an intensity analysis on the audio signals. Another exemplary method includes determining that a signal source is on a collision course with a moving platform and providing an instruction for altering the course of the moving platform to avoid a collision with the signal source. An exemplary system includes an acoustic sensing system, having a primary microphone array, a secondary microphone, and a processing device for determining a signal source position and velocity by performing a direction analysis on a plurality of audio signals and performing an intensity analysis on the audio signals. 1. A method of determining a position and a velocity of a signal source , comprising:performing a direction analysis on a plurality of audio signals associated with the signal source;performing a frequency analysis on the plurality of audio signals; andestimating the position and the velocity of the signal source.2. The method of claim 1 , further comprising:obtaining first ones of the audio signals from a primary microphone array;obtaining a second one of the noise audio signals from a secondary microphone;generating a set of processed audio signals by subtracting the second one of the noise audio signals from each of the first ones of the audio signals.3. The method of claim 2 , further comprising:conducting a frequency estimation on the set of processed audio signals.4. The method of claim 3 , further comprising:determining a signal direction of the signal source based on the set of processed audio signals.5. The method of claim 4 , 'generating a second set of processed audio signals based on the subtracting.', 'wherein the set of processed audio signals are a first set of processed audio signals ...

METHOD FOR DETERMINING EFFECTIVE SOUND VELOCITY IN DEEP SEA

The present invention discloses a method for determining an effective sound velocity in the deep sea. The method is applied to an apparatus for determining an effective sound velocity in the deep sea having a transmission point, a receiving point, and an underwater mobile carrier. The transmission point is installed on the sea surface such that the depth of the transmission point is unchanged. The receiving point is installed on the underwater mobile carrier such that the depth of the receiving point changes with movement of the underwater mobile carrier. The underwater mobile carrier can measure a sound velocity profile between the transmission point and the receiving point and a horizontal distance between the transmission point and the receiving point. 1. A method for determining an effective sound velocity in the deep sea , wherein the method is applied to an apparatus for determining an effective sound velocity in the deep sea , the apparatus including a transmission point , a receiving point , and an underwater mobile carrier , the transmission point is installed on the sea surface , a depth of the transmission point is unchanged , the receiving point is installed on the underwater mobile carrier , a depth of the receiving point changes with movement of the underwater mobile carrier , the underwater mobile carrier can measure a sound velocity profile between the transmission point and the receiving point and a horizontal distance between the transmission point and the receiving point , the method comprising:obtaining a transmission point depth at a moment k and a receiving point depth at the moment k;obtaining a receiving point depth at a moment k+1 and the horizontal distance between the transmission point and the receiving point;determining a pitch angle between the transmission point and the receiving point according to the transmission point depth, the receiving point depth at the moment k+1, and the horizontal distance between the transmission point and ...

Method and system for determining horizontal distance between transmitting point and receiving point

The present invention discloses a method and system for determining a horizontal distance between a transmitting point and a receiving point. The method obtains a depth value of the transmitting point and a depth value of the receiving point. An area of a sound velocity profile according to the depth value of the transmitting point and the depth value of the receiving point is then determined. A sound velocity gradient according to the area of the sound velocity profile is also determined. The horizontal distance between the transmitting point and the receiving point according to the sound velocity gradient is then determined by calculations. The present invention eliminates the need to calculate a grazing angle of an eigen sound ray(wave) connecting the transmitting point and the receiving point, by directly converting a propagation time into the horizontal distance, thereby quickly and efficiently calculating the horizontal distance between the transmitting point and the receiving point.

METHOD AND SYSTEM FOR DETERMINING DISPLACEMENT OF AN ANCHOR

A method for determining a displacement of an anchor is provided. The method includes the steps of: determining an initial position of the anchor; and determining a displacement of the anchor. The step of determining the displacement of the anchor includes (i) measuring anchor velocity values, (ii) measuring at least one further physical quantity associated with the anchoring, (iii) deciding whether the anchor is at rest or in motion, wherein a value of the further physical quantity is taken into account in the decision, and (iv) integrating the velocity values over time during intervals when the anchor is deemed to be in motion. 1. (canceled)2. A method for determining a displacement of an anchor , the method comprising the steps of:(a) determining an initial position of the anchor; and i. measuring anchor velocity values, preferably by a velocity sensor, in particular an ultrasonic Doppler velocity sensor, or an image processing based velocity sensor,', 'ii. measuring at least one further physical quantity associated with anchoring of the anchor,', 'iii. deciding whether the anchor is at rest or in motion, wherein a value of the further physical quantity is taken into account in the decision, and', 'iv. during intervals when the anchor is deemed to be in motion, integrating the anchor velocity values over time., '(b) determining a displacement of the anchor by'}3. The method according to claim 2 , further comprising at least one of the steps of ignoring and/or disposing of the anchor velocity values measured during intervals when the anchor is deemed to be at rest claim 2 , and/or switching off the velocity sensor claim 2 , in particular by at least temporarily interrupting a power supply to the velocity sensor claim 2 , or putting the velocity sensor into an idle state or a low power state in which a reduced amount of energy is claim 2 , in particular as compared to a normal operation state claim 2 , consumed by and/or provided to the velocity sensor.4. The ...

METHOD AND SYSTEM FOR DETERMINING DISPLACEMENT OF AN ANCHOR

A method for determining a displacement of an anchor is provided. The method includes the steps of: determining an initial position of the anchor; and determining a displacement of the anchor. The step of determining the displacement of the anchor includes (i) measuring anchor velocity values, (ii) measuring at least one further physical quantity associated with the anchoring, (iii) deciding whether the anchor is at rest or in motion, wherein a value of the further physical quantity is taken into account in the decision, and (iv) integrating the velocity values over time during intervals when the anchor is deemed to be in motion. 1. A method for determining a displacement of an anchor , the method comprising the steps of:(a) determining an initial position of the anchor; and i. measuring anchor velocity values, preferably by a velocity sensor, in particular an ultrasonic Doppler velocity sensor, or an image processing based velocity sensor,', 'ii. measuring at least one further physical quantity associated with anchoring of the anchor,', 'iii. deciding whether the anchor is at rest or in motion, wherein a value of the further physical quantity is taken into account in the decision, and', 'iv. during intervals when the anchor is deemed to be in motion, integrating the anchor velocity values over time., '(b) determining a displacement of the anchor by'}2. The method according to claim 1 , further comprising at least one of the steps of ignoring and/or disposing of the anchor velocity values measured during intervals when the anchor is deemed to be at rest claim 1 , and/or switching off the velocity sensor claim 1 , in particular by at least temporarily interrupting a power supply to the velocity sensor claim 1 , or putting the velocity sensor into an idle state or a low power state in which a reduced amount of energy is claim 1 , in particular as compared to a normal operation state claim 1 , consumed by and/or provided to the velocity sensor.3. The method according ...

Device for estimating speed of moving sound source, speed monitoring system, method for estimating speed of moving sound source, and storage medium in which program for estimating speed of moving sound source is stored

A sound signal corresponding to a sound emitted by a sound source is inputted to a frequency analysis unit (101), and the frequency analysis unit (101) performs frequency analysis of the sound signal and generates a spectrogram. Spectrogram template information indicating spectrograms corresponding to each of at least a plurality of predetermined movement speeds, the spectrograms being for cases in which the sound source is moved, is stored in a model storage unit (102). An estimation unit (103) estimates the movement speed of the sound source on the basis of the spectrogram generated by the frequency analysis unit (101) and the plurality of spectrograms indicated by the spectrogram template information stored in the model storage unit (102).

DEVICE AND METHOD FOR ORIENTATION AND POSITIONING

Methods and devices for, among other applications, locating an emitter, comprises an array of receivers configured in different angular positions about the array relative to a corresponding array location axis, to receive a signal from the emitter having at least one burst containing a train of pulses, and at least one processor configured to profile pulse count values at each receiver, from one receiver to another in the array in relation to their respective angular positions, to designate a maximum peak angular position associated with a maximum pulse count value, and to attribute the peak angular position to an angular emitter location. 1providing a plurality of spaced receivers, including a group of receivers in respective locating signal-receiving angular positions, each of the receivers having an angular position coordinate value, stored in memory, associated with a designated angle of the receiver relative to a reference axis;enabling each receiver in the group of receivers to receive at least one locating signal from the locating signal emitter, the locating signal including, at least in part, a plurality of pulses in at least one train of pulses; process the locating signal received at each receiver in the group of receivers, to form a pulse count value in relation to a count of pulses above a pulse strength threshold;', 'form a pulse count profile whose coordinates include each pulse count value and the corresponding angular location accessed from memory; and to', 'attribute a designated angular position coordinate value corresponding to a maximum pulse count value in the pulse count profile as a location value representative of at least the heading of the emitter., 'enabling at least one locator processor, in communication with the spaced receivers, at a first clock increment, to. A method for a locator configuration to locate a locating signal emitter, comprising: The entire subject matter, including materials submitted at filing, of the following ...

GAZE RECOGNITION SYSTEM AND METHOD

A gaze recognition method includes: a signal sensing step of sensing sound wave signals output from one or more sound wave transmitters disposed on a head of a user; a signal analyzing step of analyzing the sensed sound wave signals; and a gaze recognizing step of sensing relative displacement of the sound wave transmitters through signal analysis results for the sound wave signals to recognize a gaze change of the user. 1. A gaze recognition method comprising:a signal sensing step of sensing sound wave signals output from one or more sound wave transmitters disposed on a head of a user;a signal analyzing step of analyzing the sensed sound wave signals; anda gaze recognizing step of sensing relative displacement of the sound wave transmitters through signal analysis results for the sound wave signals to recognize a gaze change of the user.2. The gaze recognition method according to claim 1 , wherein the sound wave transmitters generate sound wave signals having different patterns.3. The gaze recognition method according to claim 1 , wherein the sound wave signals are implemented by an ultrasonic wave or a high frequency wave that is out of an audio frequency range of a human.4. The gaze recognition method according to claim 1 , wherein in the signal analyzing step claim 1 , an intensity change of the sound wave signals depending on relative distance changes of the sound wave transmitters is calculated.5. The gaze recognition method according to claim 1 , wherein in the signal analyzing step claim 1 , a frequency deviation of the sound wave signals due to the Doppler effect depending on movement of the sound wave transmitters is calculated.6. The gaze recognition method according to claim 1 , wherein in the signal analyzing step claim 1 , a time difference between different sound wave signals simultaneously generated by the respective sound wave transmitters depending on movement of the sound wave transmitters is calculated.7. The gaze recognition method according to ...

Determining speaker changes in audio input

Intelligent assistant systems, methods and computing devices are disclosed for identifying a speaker change. A method comprises receiving audio input comprising a speech fragment. A first voice model is trained with a first sub-fragment from the speech fragment. A second voice model is trained with a second sub-fragment from the speech fragment. The first sub-fragment is analyzed with the second voice model to yield a first confidence value. The second sub-fragment is analyzed with the first voice model to yield a second confidence value. Based at least on the first and second confidence values, the method determines if a speaker of the first sub-fragment is the speaker of the second sub-fragment.

Multi-user intelligent assistance

An intelligent assistant records speech spoken by a first user and determines a self-selection score for the first user. The intelligent assistant sends the self-selection score to another intelligent assistant, and receives a remote-selection score for the first user from the other intelligent assistant. The intelligent assistant compares the self-selection score to the remote-selection score. If the self-selection score is greater than the remote-selection score, the intelligent assistant responds to the first user and blocks subsequent responses to all other users until a disengagement metric of the first user exceeds a blocking threshold. If the self-selection score is less than the remote-selection score, the intelligent assistant does not respond to the first user.

POSITIONING SYSTEM AND METHOD WITH STEGANOGRAPHIC ENCODED DATA STREAMS IN AUDIBLE-FREQUENCY AUDIO

A system and method for location positioning with steganographic encoded data streams in audible-frequency range audio is disclosed. The method comprises encoding, modulating and audio-hiding data streams into corresponding audible-frequency range steganographic audio signal; transmitting each audio signal by a corresponding loudspeaker, wherein each data stream includes the geographic location of the corresponding loudspeaker, a time stamp of transmission of periodic frames of the data stream and the like. In addition, a mobile device is used for: acquiring an audio signal that includes the transmitted audio signals; separating, demodulating and decoding the data streams therefrom; calculating the distance between the mobile device and each of the loudspeakers based on the time of flight between transmission and acquisition of each of the audio signals; and estimating the geographic location of the mobile device based on the distance between the mobile device and the loudspeakers and the geographic location of the loudspeakers. 1. A method for location positioning with steganographic encoded data streams in audible-frequency range audio comprising:encoding, modulating and audio-hiding a data stream into an audible-frequency range steganographic audio signal;transmitting said audio signal by a loudspeaker, wherein said data stream includes the geographic location of the loudspeaker;using a mobile device for:acquiring an audio signal from the acoustic environment that includes the transmitted audio signal;separating, demodulating and decoding the data stream from the acquired audio signal; andestimating a geographic location of the mobile device based on the geographic location of the loudspeaker.2. The method for location positioning with steganographic encoded data streams in audible-frequency range audio according to claim 1 , wherein said data stream includes the geographic location of the loudspeaker and a time stamp of transmission of periodic frames of the ...

Method For Determining Wellbore Position Using Seismic Sources and Seismic Receivers

A method for determining position of a wellbore in the Earth's subsurface can include: actuating a seismic energy source at a selected location along the wellbore; detecting seismic energy with sensors located at known geodetic positions along the wellbore, the detected seismic energy being at least partially reflected by a casing of an adjacent wellbore; and determining the geodetic position of the wellbore at the selected location from the detected seismic energy.

DETERMINING MISS DISTANCE AND BULLET SPEED OF A BURST OF BULLETS

Disclosed is an example for determining miss distance and bullet speed of a burst of bullets. In one example, shock wave (SW) vectors emanating from bullets are estimated using a first sensor. Further, firing point (FP) vectors and closest-point-of-approach (CPA) vectors emanating from the bullets are estimated using a second sensor. The first sensor and the second sensor are disposed on a platform. The SW vectors, the FP vectors and the CPA vectors are determined as emanating from the burst of bullets. The miss distance and bullet speed of the burst of bullets are determined using the FP vectors, the SW vectors, and the CPA vectors that are emanating from the burst of bullets. 1. A method for determining miss distance and bullet speed of a burst of bullets , the method comprising:estimating shock wave (SW) vectors emanating from bullets using a first sensor;estimating firing point (FP) vectors and closest-point-of-approach (CPA) vectors emanating from the bullets using a second sensor, wherein the first sensor and the second sensor are disposed on a platform;determining that the SW vectors, the FP vectors and the CPA vectors are emanating from the burst of bullets; anddetermining the miss distance and bullet speed of the burst of bullets using the FP vectors, the SW vectors, and the CPA vectors that are emanating from the burst of bullets.2. The method of claim 1 , wherein determining that the SW vectors claim 1 , the FP vectors and the CPA vectors are emanating from the burst of bullets claim 1 , comprises:computing a shock angle between the CPA vectors and the SW vectors; anddetermining that the SW vectors, the FP vectors and the CPA vectors are emanating from the burst of bullets when the computed shock angle is within a predetermined range.3. The method of claim 1 , wherein determining that the SW vector claim 1 , the FP vector and the CPA vector are emanating from the burst of bullets comprises:performing a coplanar check to determine whether the FP vectors, ...

METHOD AND SYSTEM FOR ESTIMATING VEHICLE VELOCITY

Provided is a method of estimating velocity of a vehicle, in which at least one black box is installed, the method including: receiving acoustic information from the black box, the acoustic information being synchronized with time of a certain image; transforming the acoustic information of a time domain to frequency data of a frequency domain via fast Fourier transformation (FFT); calculating revolutions per minute (RPM) of a main engine from the frequency data by using order analysis; and calculating velocity of the vehicle at the time of the certain image by using the RPM of the main engine and vehicle information. 1. A method of estimating velocity of a vehicle , in which at least one black box is installed , the method comprising:receiving acoustic information from the black box, the acoustic information being synchronized with time of a certain image;transforming the acoustic information of a time domain to frequency data of a frequency domain via fast Fourier transformation (FFT);calculating revolution per minute (RPM) of a main engine from the frequency data by using order analysis; andcalculating velocity of the vehicle at the time of the certain image by using the RPM of the main engine and vehicle information.2. The method of claim 1 , wherein the calculating of the RPM of the main engine comprises determining a primary order of the main engine of the vehicle by using a number of cylinders of the main engine included in the vehicle information claim 1 , and calculating the RPM of the main engine from the frequency data corresponding to the primary order.3. The method of claim 1 , wherein the vehicle information includes a gear ratio of the vehicle claim 1 , a final gear ratio of a differential gear claim 1 , a size of a tire claim 1 , and the number of cylinders of the main engine.4. The method of claim 3 , wherein the calculating of the velocity of the vehicle comprises:calculating an angular velocity of a transmission by using the RPM of the main engine ...

CONTROL SYSTEM FOR VEHICLE

A control system for a vehicle includes a portable authentication terminal configured to authenticate a user who carries the portable authentication terminal, and a vehicle configured to communicate with the portable authentication terminal. The vehicle includes a sound generation unit configured to generate a predetermined sound within a vehicle cabin, an information reception unit configured to receive information transmitted from the portable authentication terminal, and a determination unit configured to determine whether the portable authentication terminal is within the cabin based on the received information. The portable authentication terminal includes a sound collection unit configured to collect a sound, and an information transmission unit configured to transmit information based on the collected sound to the vehicle. The determination unit is configured to determine whether the portable authentication terminal is within the cabin based on whether the received information is information based on the sound generated by the sound generation unit. 1. An apparatus installed in a vehicle , which communicates with a terminal , the apparatus comprising:a sound control unit that is executable by at least one processor and configured to control a sound device of the vehicle comprising a speaker to produce a sound generated on the basis of a predetermined pattern in a vehicle cabin of the vehicle;a reception unit that is executable by the at least one processor and configured to receive information transmitted from the terminal; anda determination unit that is executable by the at least one processor and configured to determine whether the terminal is within the vehicle cabin based on the information received by the reception unit.2. The control system according to claim 1 , wherein claim 1 ,the determination unit is configured to determine whether the terminal is within the vehicle cabin by determining whether the information received by the information reception ...

SOUND BASED AUTHENTICATION AND DISTANCE MEASUREMENT

A method for measuring a distance between a first device and a second device, the method may include playing, by a first sound output unit, a first correlation tone; receiving, by a first sound sensing unit, the first correlation tone; detecting a start point of a reception of the first correlation tone; receiving, by the first sound sensing unit, a second correlation tone; wherein the second correlation tone is played by a second sound output unit in response to a reception, by a second sound sensing unit, of the first correlation tone; detecting a start point of a reception of the second correlation tone; receiving, by the first sound sensing unit, information about a processing time of the second device; calculating, by a first processing unit, a timing difference between (i) the start point of the reception of the second correlation tone, and (ii) the start point of the reception of the first correlation tone; and determining the distance between the first device and the second device based on a difference between the timing difference and the processing time of the second device; wherein the first processing unit, the first sound sensing unit and the first sound output unit belong to the first device; and wherein the second sound sending unit and the second sound output unit belong to the second device. 1. A method for measuring a distance between a first device and a second device , the method comprises: playing , by a first sound output unit , a first correlation tone; receiving , by a first sound sensing unit , the first correlation tone; detecting a start point of a reception of the first correlation tone; receiving , by the first sound sensing unit , a second correlation tone; wherein the second correlation tone is played by a second sound output unit in response to a reception , by a second sound sensing unit , of the first correlation tone; detecting a start point of a reception of the second correlation tone; receiving , by the first sound sensing unit ...

Methods, systems, and apparatus to calculate distance from audio sources

Systems, methods, articles of manufacture and apparatus are disclosed to calculate distance from audio sources. An example method disclosed herein includes transmitting a first radio frequency (RF) signal to prompt a reference audio collecting device to begin collecting audio samples at a first time, initiating a dwell period in response to the first RF signal to reduce battery consumption of a portable audio collecting device by preventing the portable audio collecting device from collecting the audio samples at the first time, and when the dwell period expires, prompting the portable audio collecting device to collect the audio samples at a second time.

ELECTRONIC DEVICE AND POSITIONING METHOD

An electronic device including a sound receiver and a processor is provided. The sound receiver receives a sound signal provided by a sound generator. When the processor determines that an obstacle is blocked between the electronic device and the fixed device, the processor estimates a virtual position of the electronic device at a current time according to previous movement information and a previous position of the electronic device. The virtual position has a shortest path between a boundary position of the obstacle and the sound generator. The processor obtains a first relative distance between the electronic device and the boundary position according to the sound signal received by the sound receiver and the boundary position. The processor calculates a relative velocity and a relative acceleration of the electronic device relative to the fixed device at the current time according to the sound signal and the first relative distance. 1. An electronic device , comprising:a sound receiver, configured to receive a sound signal provided by a sound generator disposed on a fixed device;a processor, coupled to the sound receiver, the processor estimating a virtual position of the electronic device at a current time according to previous movement information and a previous position of the electronic device when the processor determines that an obstacle is blocked between the electronic device and the fixed device according to an image,wherein the virtual position has a shortest path between a boundary position of the obstacle and the fixed device, the processor obtains a first relative distance between the electronic device and the boundary position according to the sound signal received by the sound receiver and the boundary position, and the processor calculates a relative velocity and a relative acceleration of the electronic device relative to the fixed device at the current time according to the sound signal and the first relative distance.2. The electronic device ...

AN ARTIFICIAL INTELLIGENCE APPARATUS FOR DETERMINING PATH OF USER AND METHOD FOR THE SAME

An embodiment of the present invention provides, comprising: a communication unit configured to communicate with a plurality of external AI apparatuses; and a processor configured to receive sound signals of the user from the plurality of external AI apparatuses, calculate a distance and a variation of the distance from each of the plurality of external AI apparatuses to the user based on the received sound signals, determine a current path of the user based on the calculated distance and the calculated variation of the distance, and determine a future path of the user based on the current path. 1. An AI apparatus for determining a path of a user , comprising:a communication unit configured to communicate with a plurality of external AI apparatuses; and receive sound signals of the user from the plurality of external AI apparatuses,', 'calculate a distance and a variation of the distance from each of the plurality of external AI apparatuses to the user based on the received sound signals,', 'determine a current path of the user based on the calculated distance and the calculated variation of the distance, and', 'determine a future path of the user based on the current path., 'a processor configured to2. The AI apparatus of claim 1 , wherein the processor is configured to determine the future path based on the current path and a record of the path of the user.3. The AI apparatus of claim 2 , wherein the processor is configured to determine the future path by additionally considering at least one of current time information claim 2 , weather information claim 2 , a record of interaction with the user claim 2 , state information of the plurality of external AI apparatuses or a content of an utterance voice of the user.4. The AI apparatus of claim 1 , wherein the processor is configured to:determine a maximum value of an utterance volume of the user for each of the plurality of external AI apparatuses using the sound signals, andset an utterance volume in a distance ...

SYSTEMS AND METHODS FOR COMMUNICATING INFORMATION

Systems and methods for communicating information related to a wearable device are disclosed. Exemplary information includes audio information. 1. A wearable device for establishing a communication channel between the wearable device and a recreational vehicle that is in close proximity to the wearable device , the wearable device comprising:a communication device;a processor operatively coupled to the communication device; and detect a recreational vehicle that is in a range of the communication device;', 'determine, in response to a detection by the wearable device, if the wearable device has been previously paired with the recreational vehicle; and', 'establish, in response to a determination that the wearable device has been previously paired with the recreational vehicle, a communication channel with the recreational vehicle., 'memory comprising instructions that when executed by the processor cause the processor to2. The wearable device of claim 1 , wherein to detect the recreational vehicle that is in the range of the communication device comprises to detect a recreational vehicle using at least one of radiofrequency fields claim 1 , magnetic fields claim 1 , and sound waves.3. The wearable device of claim 1 , wherein to detect the recreational vehicle that is in the range of the communication device comprises to:detect radio signals generated by a recreational vehicle;determine a strength of the radio signals;determine whether the strength of the radio signals is above a predefined threshold; anddetermine, in response to a determination that the strength of the radio signals is above the predefined threshold, that the recreational vehicle is in the range of the communication device.4. The wearable device of claim 1 , wherein to detect the recreational vehicle that is in the range of the communication device comprises to:detect low frequency magnetic fields generated by a recreational vehicle;determine a strength of the low frequency magnetic fields;determine ...

SYSTEMS AND METHODS FOR A COMPOUND SENSOR SYSTEM

A compound sensor system includes a first sensor, a second sensor, a memory that stores a module, and a processor coupled to the first sensor, the second sensor, and the memory. The first sensor is configured to detect a parameter that indicates a likelihood of having a user enter or leave a target area, and, in response, send a first command signal to the processor. The processor is configured to receive the first command signal from the first sensor and send a second command signal to the second sensor based on receiving the first command signal. The second sensor is configured to operate at a sleep mode and switch to an active mode upon receiving the second command signal, and during the active mode the second sensor is configured to determine if the user enters or leaves the target area. 1. A compound sensor system , comprising:a first sensor;a second sensor;a memory that stores a module; anda processor coupled to the first sensor, the second sensor, and the memory,wherein the first sensor is configured to detect a parameter that indicates a likelihood of having a user enter or leave a target area, and, in response, send a first command signal to the processor, receive the first command signal from the first sensor, and', 'send a second command signal to the second sensor based on receiving the first command signal,, 'wherein the processor is configured to run the module stored in the memory that is configured to cause the processor towherein the second sensor is configured to operate at a sleep mode and switch to an active mode upon receiving the second command signal, wherein during the active mode the second sensor is configured to determine if the user enters or leaves the target area.2. The compound sensor system of claim 1 , wherein the second sensor claim 1 , upon receiving the second command signal claim 1 , is configured to remain at the active power mode for an active detection period before switching to the low power mode.3. The compound sensor system ...

DISTANCE MEASURING APPARATUS AND DISTANCE MEASURING METHOD

A distance measuring apparatus and a distance measuring method are provided. The distance measuring apparatus includes a GPS module, an ultrasound transceiver module and a control module. The GPS module is configured to generate a pulse signal. The ultrasound transceiver module is configured to generate and transmit a first ultrasound signal and receive a second ultrasound signal transmitted from an object. When the control module receives the pulse signal, the control module controls the ultrasound transceiver module to generate and transmit the first ultrasound signal, and determines whether the ultrasound transceiver module receives the second ultrasound signal within a first interval. When the ultrasound transceiver module receives the second ultrasound signal within the first interval, the control module determines a distance between the distance measuring apparatus and the object according to a time difference. 1. A distance measuring apparatus , comprising:a global positioning system (GPS) module configured to generate a pulse signal;an ultrasound transceiver module configured to generate and transmit a first ultrasound signal and receive a second ultrasound signal transmitted from an object; anda control module electrically coupled to the GPS module and the ultrasound transceiver module,wherein when the control module receives the pulse signal, the control module controls the ultrasound transceiver module to generate and transmit the first ultrasound signal, and determines whether the ultrasound transceiver module receives the second ultrasound signal within a first interval,wherein when the ultrasound transceiver module receives the second ultrasound signal within the first interval, the control module determines a distance between the distance measuring apparatus and the object according to a time difference between receiving the second ultrasound signal and transmitting the first ultrasound signal.2. The distance measuring apparatus of claim 1 , wherein ...

Apparatus and Method for Measuring the Level of a Liquid

An apparatus and method for measuring the level of a liquid. The apparatus comprises an elongated, thermally conductive probe with an upper region to be disposed above the surface of the liquid, a lower region to be disposed below the surface of the liquid, and a middle region. A heater adds heat to the probe, and temperature sensors may measure the temperature of the probe in the upper and lower regions. An actuator may introduce a vibration into the probe at a first location, and a vibration sensor senses the arrival of the vibration at a second location. Electrical circuitry controls may be used to receive signals and make measurements. The liquid level may be computed by electrical circuitry controls via an equation. 1. An apparatus for measuring the level of a liquid , comprising:(a) an elongated probe comprising a thermally conductive material, said probe comprising an upper region to be disposed above the surface of the liquid, a lower region to be disposed below the surface of the liquid, and a middle region between the upper region and the lower region;(b) a heater adding heat to the probe and thereby raising the average temperature along the length thereof;(c) a temperature sensor measuring the temperature of the probe in the upper region;(d) a temperature sensor measuring the temperature of the probe in the lower region;(e) an actuator introducing a vibration into the probe at a first location along the length of the probe;(f) a vibration sensor sensing the arrival of the vibration at a second location along the length of the probe; and(g) electrical circuitry performing at least the functions of controlling the heater, receiving signals from the temperature sensors, controlling the actuator, receiving signals from the vibration sensor, and measuring the time delay between the introduction of the vibration into the probe at the first location and the arrival of the vibration in the probe at the second location.2. The apparatus of claim 1 , wherein the ...

BEAMFORMING METHOD AND APPARATUS FOR SOUND SIGNAL

A beamforming method and apparatus for acquiring a sound signal in an electronic device includes selecting at least one object for beamforming to acquire a sound, measuring a first distance between the at least one object selected and a sensor for distance measurement, calculating a second distance between the at least one object and a plurality of microphones based on the first distance, and determining a weight for sound beamforming using at least one of time delay and phase delay corresponding to the second distance between the object and the microphone. 1. A method in an electronic device , comprising:selecting at least one object for beamforming to acquire a sound;measuring a first distance between the at least one object selected and a sensor for distance measurement;calculating a second distance between the at least one object and a plurality of microphones based on the first distance; anddetermining a weight for sound beamforming using at least one of a time delay and phase delay corresponding to the second distance between the object and the microphone.2. The method of claim 1 , further comprising:re-measuring the first distance between the object and the distance measurement sensor by detecting a location change of the object;calculating the second distance between the object and the microphones based on the first distance re-measured; andre-determining the weight for the sound beamforming using the at least one of the time delay and the phase delay corresponding to the second distance between the object and the microphone.3. The method of claim 1 , wherein the selecting of the at least one object comprises:selecting the object in a displayed image using at least one of user touch input, face recognition, lip motion detection, lip recognition, and voice recognition.4. The method of claim 1 , wherein the beamforming for acquiring the sound is performed for at least one of voice acquisition during video recording claim 1 , voice recording claim 1 , photo ...

CHIRP TRAVELLING WAVE SOLUTIONS AND SPECTRA

Spectral components of waves having one or more properties other than phase and amplitude that vary monotonically with time at a receiver, and provide retardations or lags in the variation in proportion to the times or distances traveled from the sources of the waves to the receiver. The lags denote the property values prior to departure from a source and are absent in its proximity. Orthogonality of the lags to modulated information makes them useful for ranging and for separation or isolation of signals by their source distances. Lags in frequencies and wavelengths permit multiplication of capacities of physical channels. Constancy of the lagging wavelengths along the entire path from a source to the receiver enables reception through channels or media unusable at the source wavelengths, as well as imaging at wavelengths different from the illumination. 1. Spectral components of electromagnetic , acoustic or other waves , travelling at finite speeds to a receiver of said waves from one or more sources of said waves , the sources being located at various distances from the receiver , and the spectral components exhibiting monotonic variation with time at the receiver , at a first set of rates of variation , in one or more time varying properties other than phase or amplitude.2. The spectral components of claim 1 , wherein instantaneous values of the one or more time varying properties at the receiver lag behind current instantaneous values of the one or more time varying properties at each of the sources in proportion to the first set of rates of variation of the one or more time varying properties and the distance of each source from the receiver.3. Time domain waveforms reconstructed from the spectral components of .4. The spectral components of claim 1 , wherein the one or more time varying properties vary linearly.5. The spectral components of claim 1 , wherein the one or more time varying properties vary exponentially.6. The spectral components of claim 1 , ...

PASS-Tracker: Apparatus and Method for Identifying and Locating Distressed Firefighters

According to one aspect of the invention, the PASS-Tracker is a hand-held device that improves the ability of a rescuer to quickly locate a distressed firefighter by two processes: (1) detecting and recognizing the acoustic alarm sound from a PASS device in Alarm Mode, and (2) providing an indication to rescue personnel of the shortest path to the victim. The invention does not require a pre-installed infrastructure in a particular building; rather the device can be used in an ad hoc fashion at any fire scene. The PASS-Tracker utilizes a plurality of small microphones to detect the acoustic signal from the PASS device. Internal electronics in the PASS-Tracker measure the time-of-arrival (TOA) of the leading edge of the acoustic wave at each microphone and calculate and display the angle-of-arrival (AOA) of the wave.