СПОСОБ И СИСТЕМА ДЛЯ РЕАЛИЗАЦИИ БЕСПРОВОДНОЙ СВЯЗИ БЛИЖНЕГО РАДИУСА ДЕЙСТВИЯ

Изобретение относится к беспроводной связи ближнего радиуса действия (NFC) и предназначено для модуляции и демодуляции звуковых сигналов. Технический результат - повышение точности воспроизведения звуковых сигналов. Способ включает этапы, на которых: модулируют цифровой сигнал для генерирования аудиосигнала с помощью передающего устройства путем применения схемы модуляции двухчастотной манипуляцией (2FSK); воспроизводят сгенерированный аудиосигнал передающим устройством; принимают аудиосигнал приемным устройством; дискретизируют аудиосигнал приемным устройством и демодулируют дискретизированный аудиосигнал для получения цифрового сигнала приемным устройством. 2 н. и 6 з.п. ф-лы, 2 ил., 1 табл.

СПОСОБ, СИСТЕМА И УСТРОЙСТВО САМОАДАПТАЦИИ РЕЖИМА МОДУЛЯЦИИ АУДИОСООБЩЕНИЙ И ТОКЕН ЭЛЕКТРОННОЙ ПОДПИСИ

Изобретение относится к области электронной техники и предназначено для определения режима аудиомодуляции, для быстрого взаимодействия данных, путем самоадаптации режима модуляции аудиосообщений. Изобретение раскрывает, в частности, способ самоадаптации режима модуляции аудиосообщений, который включает следующие этапы: первое устройство модулирует первые аудиоданные с использованием, по меньшей мере, двух режимов модуляции для генерирования первых потоков кадров аудиоданных и сращивает их в первый поток аудиоданных для отправки на второе устройство; второе устройство определяет на основе первого потока аудиоданных режимы модуляции, корректно принятые и поддерживаемые первым устройством; модуляцию вторых аудиоданных посредством, по меньшей мере, двух режимов модуляции, корректно принятых и поддерживаемых первым устройством для генерирования вторых потоков кадров аудиоданных, их сращивание во второй поток аудиоданных для отправки первому устройству; первое устройство определяет на основе ...

СПОСОБ ДИСТАНЦИОННОГО ЭНЕРГОПИТАНИЯ ЭЛЕКТРОННОГО НОСИТЕЛЯ ИНФОРМАЦИИ И УСТРОЙСТВО ДЛЯ ЕГО РЕАЛИЗАЦИИ

Изобретение относится к средствам дистанционной передачи энергии и информации посредством ультразвука. Технический результат заключается в эффективной беспроводной передаче энергии на носитель информации, находящийся в металлическом или в толстостенном корпусе. Система состоит из базового устройства с акустическим (ультразвуковым) приемопередатчиком, предназначенным для обеспечения легкого соприкосновения с изделием за счет поверхностного контакта. Носитель информации размещен внутри изделия и акустически связан с ним. Указанные компоненты образуют акустическую систему, обеспечивающую передачу энергии и информации с помощью акустических средств. 2 с. и 16 з.п. ф-лы, 5 ил.

СИСТЕМА ДЛЯ БЫТОВЫХ ЭЛЕКТРОПРИБОРОВ И СПОСОБ ЕЕ ФУНКЦИОНИРОВАНИЯ

Группа изобретений относится к области диагностики и может быть использована для анализа функционирования бытовых электроприборов. Техническим результатом является повышение стабильности преобразования сигнала и повышение точности передачи информации с использованием выведенного сигнала. Система содержит устройство выбора, выполненное с возможностью приема введенной команды для выполнения диагностирования неисправности; запоминающее устройство, выполненное с возможностью сохранения информации об изделии в отношении бытового электроприбора для диагностирования неисправности; контроллер, выполненный с возможностью загрузки информации об изделии, хранящейся в запоминающем устройстве, генерирования и вывода управляющего сигнала, включающего в себя информацию об изделии, управления устройством преобразования; устройство преобразования, выполненное с возможностью преобразования управляющего сигнала в акустический сигнал и вывода акустического сигнала; и устройство вывода, выполненное с возможностью ...

Устройство гидроакустической связи для подводной навигации

Полезная модель относится к технике связи и может использоваться в системе гидроакустической связи для подводной навигации. Технический результат состоит в повышении помехоустойчивости связи для мобильных автономных подводных необитаемых аппаратов, работающих в сложной помеховой обстановке канала с высокой многолучевостью и нестационарностью при наличии мощных импульсных помех, а также на различных частотах. Для этого устройство содержит гидроакустическую антенну и расположенные в герметичном корпусе входной усилитель, вход которого является входом подключения к гидроакустической антенне, а выход соединен с платой цифровой обработки сигналов (ЦОС). Плата ЦОС выполнена на базе программируемой логической интегральной схемы (ПЛИС) и дополнительно снабжена аналого-цифровым преобразователем, дискриминатором синхронизации, когерентным демодулятором сигнала данных, адаптивным корректором уровня сигнала, блоком отслеживания частоты и фазы сигнала, банком полосовых низкочастотных фильтров и дискриминатором ...

ФАЗОВО-МАНИПУЛИРОВАННЫЙ СИГНАЛЬНЫЙ ТОН

Изобретение относится к средствам для формирования и передачи акустического сигнала. Технический результат заключается в повышении эффективности формирования и передачи акустических сигналов. Устройство включает в себя аудиопередатчик и процессорную схему. Кодируют, посредством процессорной схемы, сообщение с данными в качестве последовательности символов. При этом каждый символ ассоциирован с периодом времени и передачей аудионесущей в течение периода времени. При этом каждый символ кодирует значение данных, которое ассоциировано с соответствующими фазовыми характеристиками аудионесущей. Формируют, посредством процессорной схемы, аудиовыборки оцифрованной версии последовательности символов с использованием фазовых характеристик аудионесущей, ассоциированной с символами. Управляют аудиопередатчиком, чтобы формировать и передавать акустический сигнал, на основе аудиовыборок. Ассоциируют, посредством процессорной схемы, каждый символ с комплексной фазой. Формируют комплексный сигнал основной ...

СИСТЕМА ПЕРЕДАЧИ ТЕЛЕМЕТРИЧЕСКОЙ ИНФОРМАЦИИ ПОДВОДНОГО АППАРАТА

Изобретение относится к телеметрии, в частности к системам передачи телеметрической информации в водной среде с одного подводного объекта на другой. Технический результат - повышение помехоустойчивости передачи телеметрической информации при наличии многолучевых искажений с сохранением заданной скорости передачи информации. Система передачи телеметрической информации подводного аппарата снабжена принимающим информацию от бортовой системы управления подводного аппарата и передающим ей информацию устройством формирования и обработки сигналов, содержащим генератор синхронизирующей последовательности, генератор информационных последовательностей, соединенное с широкополосным передатчиком устройство сдвига и кодирования, соединенный с широкополосным приемником многоканальный квадратурный коррелятор, обнаруживающий акустические лучи в приемном сигнале, обусловленные многолучевым распространением сигнала, и осуществляющий их сложение со сдвигом с учетом их энергетических весовых коэффициентов, ...

ЗАЩИЩЕННАЯ И УСТОЙЧИВАЯ К РАЗРЫВАМ СВЯЗЬ ДЛЯ ПОДВОДНЫХ НЕОБИТАЕМЫХ АППАРАТОВ

СОВМЕСТНОЕ ИСПОЛЬЗОВАНИЕ НАВИГАЦИОННЫХ ДАННЫХ МЕЖДУ СОВМЕСТНО РАСПОЛОЖЕННЫМИ ВЫЧИСЛИТЕЛЬНЫМИ УСТРОЙСТВАМИ

Способ передачи информации в многоканальной системе гидроакустической связи

СПОСОБ И СИСТЕМА ДЛЯ РЕАЛИЗАЦИИ БЕСПРОВОДНОЙ СВЯЗИ БЛИЖНЕГО РАДИУСА ДЕЙСТВИЯ

... 1. Способ реализации беспроводной связи ближнего радиуса действия (NFC), причем способ включает этапы, на которых:модулируют цифровой сигнал для генерирования аудиосигнала с помощью передающего устройства путем применения схемы модуляции двухчастотной манипуляцией (2FSK);воспроизводят сгенерированный аудиосигнал передающим устройством;принимают аудиосигнал приемным устройством;дискретизируют аудиосигнал приемным устройством; идемодулируют дискретизированный аудиосигнал для получения цифрового сигнала приемным устройством,отличающийся тем, что модулирующую частоту двоичного бита “0” в цифровом сигнале устанавливают равной 12 кГц, модулирующую частоту двоичного бита “1” в цифровом сигнале устанавливают равной 16 кГц, и ширину модуляции устанавливают в размере 1000 точек дискретизации в схеме модуляции 2FSK.2. Способ по п. 1, отличающийся тем, что на этапе дискретизации аудиосигнала приемным устройством частота дискретизации аудиосигнала приемным устройством равна 48 кГц, количество каналов ...

НАДЕЖНАЯ СИСТЕМА ПОДВОДНОЙ СВЯЗИ

... 1. Система подводной связи для связи между передатчиком акустических сигналов и удаленно расположенным приемником акустических сигналов, в которой передаваемые данные передаются множеством символов, каждый из которых имеет две компоненты, одна из которых содержит отличающийся битовый код, а другая относится к свойству символа в целом, причем свойство последовательных символов изменяется ступенчато по заранее определенной непрерывно повторяющейся последовательности отличающихся шагов, каждый из которых встречается один раз за последовательность, причем приемник сигналов работает синхронно с передатчиком сигналов и содержит средство коррелятора, реагирующее и на битовый код, и на свойства принятых сигналов для эффективной демодуляции и имеющее множество выходных сигналов по одному на каждый символ, так что когда каждый символ обнаруживается, сигнал на выходе, которому он соответствует, доминирует, и средство амплитудного детектора реагирует на выходные сигналы корреляторов, для обеспечения ...

Datenübertragung in Bohr- oder Sondiergestängen

Vorrichtung zur Übertragung von Daten im Bereich von Gleisanlagen

UNTERWASSERKOMMUNIKATIONSSYSTEM

OPTISCHES UNSYMMETRISCH WELLENLEITENDES VERBINDUNGSELEMENT

Communication system has telephone apparatus that outputs specific sound signal to hearing apparatus at the time of guiding telephone conversation

The communication system has a telephone apparatus (10) for guiding a phone call. The telephone apparatus outputs a specific sound signal (15) to a hearing apparatus (11) at the time of guiding the telephone conversation. The hearing apparatus is provided for outputting sound and for supporting in or on the ear. A microphone (12) is provided in hearing apparatus for receiving the specific sound signal. The hearing apparatus is switched to a predetermined state when the specific sound signal is received. An independent claim is included for method for operating communication system.

Underwater diver location system has portable housing and uses trigonometric delay processing of transponded audio frequency tone sequence

An underwater diver location system is contained in a portable housing and emits a single or audio tone sequence from a loudspeaker transmitter with trigonometric location and display using microphone received time difference processing in a microprocessor (MCU) for display.

Verfahren zur Signaluebermittlung durch Schallwellen

Signalverfahren

Teilen von Navigationsdaten unter sich am selben Ort befindlichen Computergeräten

Eine Gruppe von wenigstens zwei sich am selben Ort befindlichen ersten und zweiten Computergeräten, die ausgebildet sind zum Teilen von Navigationsdaten untereinander, durch: das Identifizieren, durch das erste Computergerät, des zweiten Computergeräts auf Basis des ersten Computergeräts, das ein akustisches Signal erfasst, das von einem oder mehreren Lautsprechern des zweiten Computergeräts ausgegeben wird, wobei das zweite Computergerät eine zweite Navigationsanwendung ausführt, die programmiert worden ist, um entlang einer geographischen Wegstrecke zu navigieren; das Ermitteln, durch das erste Computergerät und unter Verwendung der im akustischen Signal kodierten Informationen, die von einem oder mehreren Lautsprechern des zweiten Computergeräts ausgegeben wurden, der geographischen Wegstrecke, die von der Navigationsanwendung, die auf dem zweiten Computergerät ausgeführt wird, programmiert worden ist, um die Navigation durchzuführen; und das Anzeigen einer Darstellung der geographischen ...

Unterwasser-Telefon

Hypersonic, sound cancelling, laser accentuated application for tablet computer, television or other personal computer device

The disclosure relates to the creation of a secure audio link between a user and a mobile computing device, such as a laptop or a tablet computer A. It is stated that sound originating from hypersonic speakers B may be used to direct audio securely to the user of the mobile computing device. Lasers may pick up the users voice by means of reflection analysis. A camera may monitor the users movement and direct the hypersonic sound and the lasers accordingly. It is also stated that sound cancellation may be used to silence the users voice to others in a room. In this way, the described system is said to allow private conversations without requiring the user to hold the device to the ear. Also disclosed is a tilt mechanism (figs. 2-7) ...

Wireless communication device and method

Modulation scheme

A method and system for acoustic communication of data

An acoustic transducer for use in dense medium

... 1,119,337. Underwater signalling equipment. Y. YAMAMOTO, and E. S. HAMBERG. 24 March, 1966 [13 April, 1965], No. 13144/66. Heading H4J. Underwater signalling apparatus comprises a housing 20 having two separate chambers, one 44 for batteries, and one 46 containing an amplifier 12 and transducer 16. The housing has a resilient wall at 51 and the transducer chamber is filled with silicone oil to transmit the vibrations of the transducer diaphragm 18 to the resilient wall 51 and thus to the surrounding water. The rear portion of the diaphragm 18 has a layer of closed cell neoprene material 82 stuck thereto, the cells enclosing air, which tends to damp out radiation from the rear of the diaphragm. Alternatively, a bubble of air may be trapped behind the diaphragm, e.g. enclosed in a rubber cup. The diaphragm 18 and moving coil 36 are supported by a spider 38 having apertures to allow the oil access to the interior of the transducer. An onoff switch (65, Fig. 3, not shown) and an alarm switch ...

COMMUNICATION SYSTEM

Acoustically communicating data signals across an electrical isolation barrier

In one aspect, a data communication system includes a modulator, an integrated acoustic data coupler, and a demodulator. The modulator modulates a carrier signal having a frequency in an operating frequency range in response to an input data signal and provides the modulated carrier signal at a modulator output. The integrated acoustic data coupler includes an acoustically resonant structure that has one or more acoustic resonant frequencies in the operating frequency range. The acoustically resonant structure includes a first thin film electro-acoustic transducer electrically coupled to the modulator output, a second thin film electro-acoustic transducer, and a substrate. The substrate supports, acoustically couples, and provides an electrical isolation barrier between the first and second thin film electro-acoustic transducers. The demodulator has a demodulator input coupled to the second thin film electro-acoustic transducer and is operable to generate an output data signal from an input ...

Acoustic generator and radio signal decoder for detecting a hidden bug

A bug detector, for detecting a hidden bug 24, comprises an acoustic generator 21, an identification decoder 22, and a control device 23. The acoustic generator 21 generates a specific audio signal for the microphone 241 of the bug 24 to receive and output a radio signal through its radio transmitter. The identification decoder 22 receives the radio signal for decoding so as to obtain a decoded audio signal. The control device 23 connects to the acoustic generator 21 and the identification decoder 22 for comparing the specific audio signal with the decoded audio signal so as to determine the existence of the bug 24. The control device 23 may additionally comprise a display and switch unit 232 to control and display different operation modes of the bug detector and indicate a correspondence between the specific audio signal and the decoded audio signal.

Autonomous ocean bottom seismic node recording device

The present invention relates to an improved autonomous node seismic recording device having an integrated modular design and one or more features that assist coupling of the unit to the sea floor in order to improve the vector fidelity of seismic signal measurement.

Autonomous ocean bottom seismic node recording device

Multimode communications system

Wireless high capacity sub-sea communications system

A method and system for acoustic communication of data

A method to transmit data acoustically between a first device 101 and a second device 103. An audio signal transmitted by a speaker 102 is received by a microphone 104 and passed to a processor 105 which is configured with a first plurality of voters or decoding engines to extract the data. The voters comprise differing values of a first acoustic characteristic to address interference. The interference may be environmental interference such as reverberation, reflections, echo, distortion, delay or noise. The acoustic characteristic may be reverberation cancellation, timing offset, noise cancellation or harmonics. A second plurality of voters may be employed that have differing values of a second acoustic characteristic. Each voter may be pre-weighted and a confidence interval, consensus or statistical information may be used for decoding. The number and configuration of the voters may be optimised based upon the expected acoustic environment. The acoustic data may be a shortcode and may ...

Electroacoustic transducer

The transducer comprises a first electrode 62, a second electrode 64 and a piezoelectric material 60, fig 2 at least partially sandwiched between the first electrode and the second electrode. An optical aperture 16 extends through the transducer to allow for optical communication to take place through the transducer. It is intended that the transducer form a part of a combined optical/acoustic power and/or data communication system (fig 1).

Robust underwater communication system

A method for pairing a first computing device with at least a second computing device by an assistance system, as well as an assistance system

Subsea measurement apparatus, method of compressing measurement data and method of providing inter-compatibility between apparatus

A subsea measurement apparatus 104 is immersed in water and comprises a sensor, a communications module, and a processing resource operably coupled to the sensor and the communications module. The sensor measures a property of a medium and the processing resource provides a first execution environment 122 and a second execution environment 124 independent from the first execution environment. The first execution environment allows execution of device firmware 128 that cooperates with the sensor to generate, when in use, raw or partially processed measurement data. The second execution environment receives and executes a user-defined application to further process the measurement data. Also disclosed in a method for further processing data which may comprise compressing the raw measurement data to allow acoustic transmission of data to the surface. The user-defined application may also be transmitted from the surface to subsea measurement to modify or improve the data processing executed ...

Method and system for transmitting a transaction identifier

Near field communication implementation method andsystem

Method and system for transmitting a transaction identifier

Near field communication implementation method andsystem

Near field communication implementation method andsystem

Signaleinrichtung für Taucher

Rammspitze (1) für einen im Wesentlichen rohrförmigen, insbesondere hohlzylindrischen, Rammpfahl (2) mit einer Pfahlseele (3), durch die Beton in den Rammpfahl (2) einbringbar ist, wobei die Rammspitze (1) auf ein Pfahlende (4) des Rammpfahls (2) aufsteckbar ist, wobei an einer Innenwandung (5) der Rammspitze (1) wenigstens ein erster Auflagesteg (6) mit einer ersten Auflagefläche (7) für eine Stirnseite (8) des Pfahlendes (4) angeordnet ist, wobei die Rammspitze (1) ausgehend von der Ebene der ersten Auflagefläche (7) einen sich zumindest teilweise in Einrammrichtung (E) erstreckenden Hohlraum (9) aufweist, in den bei aufgestecktem Rammpfahl (2) durch die Pfahlseele (3) Beton einbringbar ist, wobei wenigstens ein Betonaustrittskanal (10) vorgesehen ist, der den Hohlraum (9) mit einem oberen Rand (11) der Rammspitze (1) verbindet.

Signaleinrichtung für Taucher

Eine Signaleinrichtung für Taucher (3) weist längs eines Pressluftflaschen-Schultergurtes (4) eine im Schulterbereich am Schultergurt (4) schwenkbar angelenkte Lasche (12) auf, die am anderen freien Ende mittels eines Verschlusses (13, 13') mit dem Schultergurt (4) lösbar verbunden ist. Der Verschluss (13, 13') ist von Hand aus zu öffnen oder öffnet selbsttätig bei Anliegen eines Alarmes z.B. bei Überschreiten eines an einem Tauchcomputer eingestellten Grenzwertes. Sodann schwimmt die Lasche (12) über die Schulter in der Art einer hochgehaltenen Fackel auf, zumal die Lasche (12) am freien Ende eine Signalleuchte (14) als Rundumlicht trägt. An der Lasche (12) kann eine Antenne (21) eines Ultraschallsenders (20) vorgesehen sein und gegebenenfalls auch ein GPS-Sender (22) bzw. Transponder, der über Wasser ein Auffinden des Tauchers (3) erleichtert. Zwischen der Lasche (12) und dem Schultergurt (4) ist ein Schlauch (10) zu einer Pressluftflasche (9) eingeklemmt, der ein Reservemundstück (11 ...

PROCEDURE AND DEVICE FOR TRANSFERRING AN INFORMATION SIGNAL.

ELECTRONIC TRANSDUCER OF AN ACOUSTIC SIGNAL IN A PSEUDODIGITAL SIGNAL AND BIDIREKTIONELLES COMMUNICATION PROCEDURE BY ACOUSTIC WAVES

ARRANGEMENT TO THE UNDERWATER TRANSMISSION AND COMMUNICATIONS NETWORK WORK

ACOUSTIC TRANSMISSION SYSTEM

Method and device for developing a virtual speaker distant from the sound source

Inaudible signaling tone

INAUDIBLE SIGNALING TONE A method of encoding, and decoding, a human-inaudible acoustic signal 240 embedded within audio content, suitable for use within the processor of an encoding and broadcasting system or a decoding and receiving system 200, 202. A binary message is encoded into a sequence 1000, 2000 of symbols selected from a group of four or eight symbols, each symbol encoding two or three binary bits with an associated frequency. The human-inaudible acoustic signal may have a variable length, with the length of the signal encoded in a header 1002-1008, 2002-2009. The encoding uses both forward error correction and cyclic redundancy coding to increase the robustness of the transmission. Furthermore, the binary bits encoded by the symbols are selected such that a Hamming distance of a single bit transformation exists between symbols associated with adjacent frequencies, so that a frequency error creates only a single bit error.

Remote sensing of underwater acoustic fields

Ultrasound detectors

Acoustic transmission

In apparatus for the acoustic transmission of power or data through a solid barrier such as a ships hull, assembly of an acoustic transducer to the hull is facilitated by bonding it first to an intermediate element by a thin layer of bonding adhesive and then bonding the intermediate element to the barrier using a second bonding layer. Acoustic matching of the transducer to the intermediate element is achieved by the thin layer, and the mechanically more robust base of the intermediate element can be rubbed on the barrier surface to displace or abrade away any unwanted debris or imperfections which might otherwise prevent the achievement of a thin second bonding layer. This makes the mounting and bonding process more tolerant of imperfections in the barrier surface due to either surface defects or particulate contamination. The transmit and receive transducers may be positioned relative to each other so as to suppress or attenuate multiple-transit signals. Thus the intermediate element ...

Data communication system

A communication system (100) is configurable to operate in either a transparent mode or a data streaming mode. In the transparent mode data is transferred to a data requesting component (112) from a data source (102) using a request-response protocol. In the data streaming mode a second data transfer component (106) is configured to obtain data from the data source component via a third data link (104), and to transfer the data to a first data transfer component (110) via a second data link (108), which has a relatively higher latency, without using the request-response protocol. The first data transfer component is configured to store the transferred data and to transfer the stored data to the data requesting component via a first data link (114) upon receiving a request for the stored data from the data requesting component.

Sharing navigation data among co-located computing devices

This document describes systems, methods, devices, and other techniques for sharing navigation data among computing devices. The techniques can include identifying, by a first computing device, a second computing device, based on the first computing device detecting an audio signal emitted by one or more speakers of the second computing device, wherein the second computing device is running a navigation application that has been programed to navigate a geographic route. Using information encoded in the audio signal that was emitted by the one or more speakers of the second computing device, the first computing device can determine the geographic route that the navigation application running on the second computing device has been programmed to navigate. A representation of the geographic route can be displayed on an electronic display of the first computing device.

Method and system for accessing information and/or data available on a wide area computer network

INTEGRATED DIVER FACE MASK AND ULTRASOUND UNDERWATER VOICE COMMUNICATION

Acoustic heterodyne device and method

Physical presence digital authentication system (device-to-device)

Physical presence digital authentication system (webpage-dependent activation)

APPARATUS AND SYSTEM FOR WIRELESS RECEPTION AND TRANSMISSION OF CODED AUDIO AND/OR SONIC ALARM SIGNALS

FREQUENCY BAND CONVERTER

METHOD AND APPARATUS FOR ERROR COMPENSATION IN MULTICHANNEL SYSTEMS

MODULATOR- AMPLIFIER

A modulator-amplifier (10) configured for use in parametric sound reproduction systems, including an input (12) configured for receiving at least one input signal (16), a reference signal generator (20) configured for generating a reference signal, and a comparator stage (18) coupled to the input (12) and the reference signal generator (20), the comparator stage (18) configured for detecting relationships between a first signal based on the input signal (16) and the reference signal. A switching power stage (26) coupled to the comparator (18) is configured to receive a second signal derived from a combination of an output from the comparators and the input signal (16), wherein there is a non-linear relationship between the input signal (16) and the timing of state transitions in the switching power stage (26) for the purpose of generating an output that has been shifted in frequency relative to a frequency of the input signal (16), and which includes at least one sideband.

PARAMETRIC VIRTUAL SPEAKER AND SURROUND-SOUND SYSTEM

A system for generating at least one remote virtual speaker location in connection with at least a partial reflective environment (12, 12, 14 or 15) in combination with an audio speaker for creating multiple sound effects including a virtual sound source from the reflective environment which is perceived by a listener (53) as an original sound source, by generating a primary direct audio output by emitting audio compression waves toward a listener, and generating a secondary indirect audio output from at least one virtual speaker (24, 25 or 26) remote from the audio speakers, by emitting ultrasonic sound from at least one parametric speaker (20, 21 or 22) associated with the audio speakers and oriented toward at least one reflective environment which is remote from the audio speakers.

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.

METHODS OF ACOUSTICALLY COMMUNICATING AND WELLS THAT UTILIZE THE METHODS

Methods of acoustically communicating and wells that utilize the methods are disclosed herein. The methods generally utilize an acoustic wireless network including a plurality of nodes spaced-apart along a length of a tone transmission medium and include determining a major frequency of a received acoustic tone transmitted via the tone transmission medium.

DYNAMIC TIME ADJUSTMENT METHOD, APPARATUS, AND SYSTEM

Disclosed is a dynamic time adjustment method, apparatus and system, which belong to the field of network communications. The method comprises: determining the length of a new downlink transmission interval; updating the length of uplink and downlink transmission intervals according to the determined length of the new downlink transmission interval; and then remaining silent, transmitting idle symbols or transmitting other known content symbols in a transition area until all user-side devices have completed the updating of the length of the uplink and downlink transmission intervals, wherein the transition area is an area, larger than a currently used downlink transmission interval, of the new downlink transmission interval, or is an area, larger than a currently used uplink transmission interval, of a new uplink transmission interval, and remaining silent, transmitting idle symbols or transmitting other known content symbols in these areas to avoid affecting normal data transmission.

AUDIO ASSISTED DYNAMIC BARCODE SYSTEM

Systems, methods, and devices for implementing an audio assisted dynamic barcode system. A gate validation system may include a barcode reader, a speaker, and a processor configured to perform operations including receiving, using the barcode reader, a first barcode from a portable electronic device indicating a request for passage through a gate. The operations may also include outputting, using the speaker, an audio signal having a predetermined feature. The operations may further include receiving, using the barcode reader, a second barcode from the portable electronic device indicating a detected feature of the audio signal. The operations may further include determining that the detected feature matches the predetermined feature and, in response to determining that the detected feature matches the predetermined feature, facilitating passage of a holder of the portable electronic device through the gate.

STANDING WAVE REDUCTION IN DIRECT FIELD ACOUSTIC TESTING

A direct field acoustic testing system includes at least two acoustical transducer groups and a signal modifier for introducing separately controllable time delays or phase shifts for each acoustical transducer group so as to provide an acoustic field conforming to a pre-determined specification with reduced deviations due to constructive or destructive interference between the acoustical transducer groups.

MONITORING SYSTEM FOR MONITORING A WATERCRAFT OR SEVERAL WATERCRAFTS AS WELL AS A PROCESS FOR VERIFYING A WATERCRAFT OR SEVERAL WATERCRAFTS

The invention relates to a monitoring system for monitoring a watercraft or a plurality of watercraft, having an identification apparatus and a first hydrophone which is set up in such a manner that sound signals emitted by one of the watercraft are determined as underwater sound information, wherein the identification apparatus has a first memory for the underwater sound information and a second memory for an item of watercraft information, wherein the first memory and the second memory are linked to one another, characterized in that the first hydrophone is arranged in a stationary and fixed manner.

HIGH-BANDWIDTH UNDERWATER DATA COMMUNICATION SYSTEM

An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.

ULTRASOUND DETECTORS

A method of receiving data coded on an ultrasonic signal comprising: detecting said ultrasonic signal using a microphone (4) having its greatest response below 20 kilohertz or a microphone (4) adapted for human speech reception; and decoding said signal to determine said data.

JOINT PAPR REDUCTION AND RATE ADAPTIVE ULTRASONIC OFDM PHYSICAL LAYER FOR HIGH DATA RATE THROUGH-METAL COMMUNICATIONS

A link adaptive orthogonal frequency-division multiplexed (OFDM) ultrasonic physical layer is provided that is capable of high data rate communication through metallic structures. The use of an adaptive OFDM subcarrier-based modulation technique mitigates the effects of severe frequency selective fading of the through-metal communication link and improves spectral efficiency by exploiting the slow- varying nature of the channel. To address the potential ill effects of peak-to-average power ratio (PAPR) and to make more efficient use of the power amplifiers in the system, the invention modifies and implements a symbol rotation and inversion- based PAPR reduction algorithm in the adaptive OFDM framework. This joint adaptive physical layer is capable of increasing data rates by roughly 220% in comparison to conventional narrowband techniques at average transmit powers of roughly 7 mW while constrained to a desired BER.

METHOD, SYSTEM, DEVICE, AND ELECTRONIC SIGNATURE TOOL FOR AUDIO COMMUNICATION MODULATION SCHEME SELF-ADAPTATION

Provided in the present invention are a method, system, device, and electronic signature tool for audio communication modulation scheme self-adaptation. The method comprises the following steps: a first device modulates first audio data by means of at least two modulation schemes to generate first audio data code streams, and splices same into a first audio data stream for transmission to a second device; the second device determines, on the basis of the first audio data stream, the modulation schemes correctly received and supported by the first device, modulates by means of the at least two modulation schemes second audio data comprising the modulation schemes correctly received and supported by the first device to generate second audio data code streams, and splices same into a second audio data stream for transmission to the first device; the first device determines, on the basis of the second audio data stream, the modulation schemes correctly received and supported by the second device ...

WIRELESS COMMUNICATION

A method for use in controlling pressure based signal transmission within a fluid in a flowline comprises transmitting a pressure based signal through a fluid within a flowline using a flow control device, recognising a condition change associated with the flowline, and then controlling the flow control device in accordance with the condition change. Another method, or an associated method for use in communication within a flowline comprises determining or composing an optimised pressure based signal for detection at a remote location and then transmitting said optimised signal using a flow control device.

UNDERWATER OBSERVATION APPARATUS

Provided is an underwater observation instrument such that it is possible, without decreasing the strength of the housing thereof, to drive an external load disposed outside of the housing with a power source disposed inside the housing. This underwater observation instrument (1) comprises: an observation instrument body (3) internally provided with at least a power source (18), a communication circuit (22) for a communication device, and a signal processing device (26); a weight structure (5); a coupling device (9) to couple the observation instrument body (3) and the weight structure (5) via a separating structure that is separable by remote control; and a melting device (7) that is disposed outside of a glass sphere (15) and that operates with power from the power source as the driving power. The configuration is such that a power supplying coil (19) that generates a magnetic flux with the current supplied from the power source is disposed in the glass sphere (15); a power receiving ...

DIGITAL SONIC AND ULTRASONIC COMMUNICATIONS NETWORKS

A digital communications network is provided using digital sonic and ultrasonic communications, i.e., communications using acoustic energy instead of RF energy. The "acoustic spectrum", as opposed to the RF spectrum, is uncluttered and unregulated, allowing for unfettered commercial development of equipment for ITS applications as well as a wide variety of other applications, including applications that currently employ RF communications. Exemplary applications include electronic toll boothing, controlled entry systems, border crossing systems, etc. Coding and processing techniques are employed that allow acoustic communications, including the communication of digital data, to be reliably transmitted and received even in noisy acoustic environments.

Gerät zum Abhören von im Innern von Körpern entstehenden Geräuschen.

Einrichtung mit Informationsspeicherung

Dispositif de télévision utilisant des vibrations élastiques

FREQUENZBANDWANDLER.

Ultraschalloptik

Verfahren und Einrichtung zur Konzentration von Ultraschall in einem langgestreckten Raumbereich

Procedure and mechanism for identifying objects and releasing interactions by means of close range coupling of acoustically modulated data signals.

Die Erfindung betrifft ein Verfahren zum Identifizieren von Objekten (2) und Auslösen von Interaktionen mittels eines akustisch modulierten Datensignals, das einem Objekt zugeordnet ist, und anhand der Identifikation der Leitung, über weiche dieses Signal von einer Empfangseinheit an eine Verarbeitungsstelle gesendet wird. Der Inhalt, der diesem Objekt zugeordnet ist, wird über diese Leitung von der Verarbeitungsstelle an die Empfangseinheit gesendet und somit wird eine Interaktion zwischen einem von vielen Teilnehmern über seine Empfangseinheit und einem von vielen Objekten ermöglicht. Hierzu erzeugt eine Station (4) ein akustisch moduliertes Datensignal, das vom Schallwandler einer Empfangseinheit, der sich im Nahbereich der Schallquelle dieser Station befindet, aufgenommen und von der Empfangseinheit an die Verarbeitungsstelle weitergeleitet wird. Die Verarbeitungsstelle stellt fest, dass das akustische Muster eingetroffen ist und erkennt die Nummer der Leitung, auf welcher dies stattgefunden ...

Method and apparatus for selectively passing onclay/tone sequences to communication units of this communication units by proximity coupling acoustically modulated data signals and for locating.

Zur selektiven Zuspielung einer Tonfolge (12a) auf Kommunikationseinheiten (3) verwendet man Stationen (4), welche diskrete, spezifische akustisch modulierte Datensignale (4e) erzeugen können. Die Kommunikationseinheiten (3) belegen Leitungen (abgehend: 117b, 116b, 113; ankommend 115, 116b, 117b) eines Übertragungsnetzes, das sie mit einer Verarbeitungsstelle (9) verbindet. Ein Datensignal wird im akustischen Nahbereich einer Station (4) durch den Schallwandler (3a) einer Kommunikationseinheit (3) aufgenommen, der Verarbeitungsstelle (9) weitergeleitet und dort detektiert. Die Leitung (117a, 116a, 113) wird ermittelt, auf welcher es empfangen wurde. Die Verarbeitungsstelle (9) sendet die dem Datensignal (4e) zugeordnete Tonfolge (12a) über die ermittelte Leitung (115, 116b, 117b) an die Kommunikationseinheit (3). Somit wird die gewünschte Tonfolge (12a) zugespielt. Die Detektionssicherheit erhöht sich, indem die Station (4) zusätzlich über eine getrennte Übertragungsstrecke (106, 6, 107 ...

WIRELESS TRANSMISSION METHOD AND DEVICE FOR IMPLEMENTING SAID METHOD.

Linvention concerne un procédé et un dispositif de transmission sans fils nutilisant pas dondes radio entre au moins un premier transducteur (T1) localisé dans un premier emplacement et au moins un deuxième transducteur (T2) localisé dans un deuxième emplacement distant du premier emplacement. Les deux transducteurs (T1, T2) étant du type électroacoustique, lon génère des ondes acoustiques (W) dans le premier transducteur (T1), lon émet ces ondes acoustiques en direction du deuxième transducteur (T2), lon capte les ondes acoustiques dans le deuxième transducteur (T2), et lon convertit au moins partiellement en énergie électrique les ondes acoustiques reçues dans le deuxième transducteur (T2). Cette énergie électrique est stockée dans un élément de stockage (M) du transducteur (T2) et peut être utilisée pour traiter, par lintermédiaire dun dispositif de traitement (P), des informations et les transmettre par des ondes acoustiques réfléchies modulées (W R ) au premier transducteur (T1).

ACOUSTIC HETERODYNE DEVICE AND METHOD

Wireless sensor communication device embedded inside metal and communication method thereof

Dual-SIM card communication method and equipment

Information providing system

TRANSMISSION SYSTEM

PROCESS OF DATA TRANSMISSION IN AN ACOUSTIC AND/OR HERTZIAN NETWORK

Procédé et dispositif de détection en mer.

A partir d'un mobile marin ou sous-marin, en particulier d'un submersible en plongée: - on largue un capteur acoustique (C), relié au mobile (SM) par une fibre optique (FO), et propre à renvoyer, modulée par les signaux acoustiques qu'il capte, une onde lumineuse émise par le mobile, et - on analyse (S4) l'onde renvoyée pour en tirer les signaux acoustiques perçus par le capteur.

Acoustic link for submerged measuring equipment - comprises hydrophone connected to equipment by cable and held facing transmitter by float

Acoustic transmission

In apparatus for the acoustic transmission of power or data through a solid barrier such as a ships hull, assembly of an acoustic transducer to the hull is facilitated by bonding it first to an intermediate element by a thin layer of bonding adhesive and then bonding the intermediate element to the barrier using a second bonding layer. Acoustic matching of the transducer to the intermediate element is achieved by the thin layer, and the mechanically more robust base of the intermediate element can be rubbed on the barrier surface to displace or abrade away any unwanted debris or imperfections which might otherwise prevent the achievement of a thin second bonding layer. This makes the mounting and bonding process more tolerant of imperfections in the barrier surface due to either surface defects or particulate contamination. The transmit and receive transducers may be positioned relative to each other so as to suppress or attenuate multiple-transit signals. Thus the intermediate element may be wedge shaped to aid suppression of triple-transit signals. Transmit and receive transducers may have different wedge angles.

Portable seismic communication device

A portable seismic communication device is disclosed and described. The device can include a tube, a striker, and an adjustable base. The tube can have a lower portion to support an internal gas pressure and an upper portion which can include a contact anvil oriented at a top end of the tube. The striker can be disposed in the tube and can be displaceable along a length of the tube by the internal gas pressure. The adjustable base can be oriented between the tube and a mine floor and can be extendable and retractable to position the anvil in contact with a mine roof (ceiling), such that the striker impacts the contact anvil when displaced by the internal gas pressure to produce an impact energy wave and the contact anvil transmits the impact energy wave to the strata above the device.

Sender communications for wireless power transfer

A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.

Receiver communications for wireless power transfer

A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.

Method and device for identifying objects and triggering interactions by means of close-range coupling of acoustically modulated data signals

The method for identifying objects and triggering interactions functions by means of an acoustically modulated data signal, which is associated with an object, and based on the identification of the line by means of which said signal is sent from a receiving unit to a processing point. The content that is associated with said object is sent by means of said line from the processing point to the receiving unit, and thus an interaction between one of many subscribers by means of the receiving unit thereof and one of many objects is enabled. For this purpose, a station produces an acoustically modulated data signal, which is captured by the sound transducer of a receiving unit located within close range of the sound source of said station and forwarded by the receiving unit to the processing point. The processing point determines that the acoustic pattern has arrived and detects the number of the line on which this occurred. The processing point, based on the knowledge thereof of the station and of the line, provides information to the receiving unit on said line. The device for identifying objects and triggering desired interactions as described above according to said method comprises stations having a tone generator and a sound source, receiving units having a sound transducer, and a processing point. The stations are equipped with an input device, for example keys, a touchscreen, a trackball, a mouse, sensors, or a microphone for voice input.

COMMUNICATION DEVICE AND METHOD FOR SENSING AND TRANSMITTING DATA FOR MILITARY SENSORS

A sonobuoy that includes a communications device capable of being communicatively coupled to a computer network. Also disclosed is a network of communications devices placed on sonobuoys. The communications device is capable of several forms of RF transmission. The communications devices are also provided with processors capable of performing signal processing or a portion of signal processing before communicating data to a larger computer for further processing. 1. A sonobuoy that comprises:a housing;a float within the housing;a communications device within the float; anda plurality of hydrophones within the housing, the array of hydrophones deployable to an array having known spacings between the hydrophones, the plurality of hydrophones communicatively coupled to the communications device.2. The sonobuoy of wherein the hydrophones are coupled to the communications device via a wire.3. The sonobuoy of wherein the hydrophones are wirelessly coupled to the communications device.4. The sonobuoy of further comprising a frame within the housing to which the plurality of hydrophones are attached.5. The sonobuoy of further comprising a foldable frame within the housing to which the plurality of hydrophones are attached claim 1 , the foldable frame unfolding when the frame separates from the housing to deploy the plurality of hydrophones.6. The sonobuoy of wherein the communications device is protected against electromagnetic interference.7. The sonobuoy of wherein the communications device is protected against radio frequency interference.8. The sonobuoy of wherein the communications device includes an external input device for selecting a deployment mode for the sonobuoy.9. The sonobuoy of wherein the communications device includes a subscriber identification module for identifying the communications device.10. The sonobuoy of wherein the communications device has a dual band radio frequency output.11. The sonobuoy of wherein the communications device includes a cell ...

Galvanically-Isolated Data Transmission Device

A data transmission device includes a coder configured to code the data into a multifrequency signal. A first array of ultrasonic transducers with a vibrating membrane is disposed on a first surface of a wafer. The first array configured to convert the signal into a multifrequency acoustic signal propagating in the wafer. A second array of ultrasonic transducers is disposed on a second surface of the wafer. The second array includes at least two assemblies of vibrating membrane ultrasonic transducers having resonance frequencies equal to two different frequencies of the multifrequency signal.

ULTRASONIC PROBE DEVICE AND ITS CONTROL METHOD

An ultrasonic probe device includes capacitive micromachined ultrasonic transducers, a band control unit and a bias voltage change unit. Each of the transducers belongs to one of groups, each of the groups includes at least one of the transducers. The band control unit determines the bias voltage value which varies for each of the groups, and a timing to apply the direct-current bias voltage having the bias voltage value so that all frequencies included in an operating frequency are transmitted and/or received by the ultrasonic probe device during an operation period. The bias voltage change unit changes the direct-current bias voltage to be applied to the capacitive micromachined ultrasonic transducers in accordance with the bias voltage value and the timing. 1. An ultrasonic probe device comprising:capacitive micromachined ultrasonic transducers in which a frequency range of transmittable and receivable ultrasonic waves changes in accordance with a bias voltage value of a direct-current bias voltage to be applied, each of the capacitive micromachined ultrasonic transducers belonging to one of groups, each of the groups including at least one of the capacitive micromachined ultrasonic transducers,a band control unit configured to determine the bias voltage value which varies for each of the groups, and a timing to apply the direct-current bias voltage having the bias voltage value so that all frequencies included in an operating frequency which is a continuous frequency band are transmitted and/or received by the ultrasonic probe device during an operation period of the ultrasonic probe device; anda bias voltage change unit configured to change the direct-current bias voltage to be applied to the capacitive micromachined ultrasonic transducers in accordance with the bias voltage value and the timing determined by the band control unit.2. The ultrasonic probe device according to claim 1 , whereinthe band control unit does not change the bias voltage value during the ...

LOW ENERGY OR MINIMUM DISTURBANCE METHOD FOR MEASURING FREQUENCY RESPONSE FUNCTIONS OF ULTRASONIC SURGICAL DEVICES IN DETERMINING OPTIMUM OPERATING POINT

A method for measuring frequency response is provided that includes supplying ultrasonic energy to an ultrasonic device configured to impart energy to tissue, providing a drive signal and a noise signal, combining the drive signal and the noise signal to create a combined signal, amplifying the combined signal and providing the amplified signal to the ultrasonic device, receiving an output signal from the ultrasonic device and the noise signal, calculating a transfer function estimate based on the output signal and the noise signal, adjusting the drive signal generator based on the calculated transfer function estimate, and determining a phase difference by time aligning the noise signal in the output signal with the noise signal provided. 1. A method for measuring frequency response , comprising:supplying ultrasonic energy to an ultrasonic device configured to impart energy to tissue;providing a drive signal;providing a noise signal, wherein the noise signal is a pseudo random noise sequence;combining the drive signal and the noise signal to create a combined signal; andamplifying the combined signal and providing the amplified signal to the ultrasonic device.2. The method according to claim 1 , further comprising:receiving an output signal from the ultrasonic device and the noise signal;calculating a transfer function estimate based on the output signal and the noise signal; andadjusting the drive signal generator based on the calculated transfer function estimate.3. The method according to claim 3 , further comprising determining a phase difference by time aligning the noise signal in the output signal with the noise signal provided.4. The method according to claim 1 , wherein the noise signal is pink noise.5. The method according to claim 1 , wherein the noise signal is a narrowband white noise.6. The method according to claim 1 , wherein the combined signal is amplified by an amplifier having a gain.7. The method according to claim 6 , wherein the gain is ...

TRANSMISSION/RECEPTION CIRCUIT, ULTRASONIC PROBE, AND ULTRASONIC IMAGE DISPLAY APPARATUS

A transmission/reception circuit for an ultrasonic probe having an ultrasonic transducer is provided. The transmission/reception circuit includes a first drive pulse generation unit configured to generate a first drive pulse for driving the ultrasonic transducer, a switch configured to turn on and off output of a second drive pulse for driving the ultrasonic transducer to the ultrasonic transducer, the second drive pulse supplied from an ultrasonic image display apparatus body connected to the ultrasonic probe, and a delay unit configured to add a delay time to an echo signal of an ultrasonic wave received by the ultrasonic transducer. 1. A transmission/reception circuit for an ultrasonic probe having an ultrasonic transducer , the transmission/reception circuit comprising:a first drive pulse generation unit configured to generate a first drive pulse for driving the ultrasonic transducer;a switch configured to turn on and off output of a second drive pulse for driving the ultrasonic transducer to the ultrasonic transducer, the second drive pulse supplied from an ultrasonic image display apparatus body connected to the ultrasonic probe; anda delay unit configured to add a delay time to an echo signal of an ultrasonic wave received by the ultrasonic transducer.2. The transmission/reception circuit according to claim 1 , wherein the first drive pulse generation unit and the switch are configured to be controlled such that either the first drive pulse or the second drive pulse is supplied to the ultrasonic transducer.3. The transmission/reception circuit according to claim 1 , further comprising a circuit control unit configured to control the first drive pulse generation unit and the switch.4. The transmission/reception circuit according to claim 1 , wherein the first drive pulse generation unit claim 1 , the switch claim 1 , and the delay unit are paired with the ultrasonic transducer.5. The transmission/reception circuit according to claim 4 , wherein a plurality of ...

SYSTEM, A METHOD AND, AN APPARATUS FOR VEHICULAR COMMUNICATION

A system and method vehicle-to-mobile communication using a smart horn () comprising, a first processor () embedded in the vehicle, configured to generate and broadcast a plurality of sound waves having two spectrums, an audible spectrum and an inaudible spectrum, the sound waves comprising a plurality of information embedded () into the inaudible spectrum. A vehicle-embedded system () coupled to the said first processor () to capture a plurality of signals associated with the vehicle-embedded system. A second processor embedded in a receiving device () configured to capture and interpret the plurality of information embedded into the inaudible spectrum. The receiving device () comprising an application () that enables the receiving device () to interpret the plurality of information embedded in the inaudible sound spectrum captured by at least one microphone (). 1515. A system for a vehicle communication using a smart horn () , the system comprising:{'b': 520', '530, 'a first processor () embedded in a vehicle, configured to generate and broadcast a plurality of sound waves having at least two spectrums, an audible spectrum and an inaudible spectrum, the sound waves comprising a plurality of information embedded () into the inaudible spectrum;'}{'b': 505', '520, 'a vehicle embedded system () coupled to the first processor () to capture a plurality of signals associated with the vehicle embedded system; and'}{'b': '540', 'a second processor embedded in a receiving device () configured to capture and interpret the plurality of information embedded into the inaudible spectrum.'}2. The system for vehicle communication using the smart horn of claim 1 , wherein the plurality of information comprises of a vehicle identification number claim 1 , a vehicle owner identification claim 1 , a vehicle health identification claim 1 , and/or claim 1 , a vehicle location details.3. The system for vehicle communication using the smart horn of claim 1 , wherein the inaudible spectrum ...

Underwater acoustic multiple-input/multiple-output (mimo) communication systems and methods

Methods and systems for acoustic multiple-input/multiple-output (MIMO) communication in an underwater environment. The method includes: a) receiving signals at multiple receivers representing transmitted signals from multiple transmitters, b) estimating channel responses between the multiple receivers and the multiple transmitters, c) performing an initial demodulation process on the received signals using the estimated channel responses to remove inter-symbol interference (ISI), and d) performing at least one subsequent demodulation process on the received signals. The subsequent demodulation process: i) removes co-channel interference (CoI) using the estimated channel responses and demodulated signals from an immediately preceding demodulation process to form interference cancelled signals and ii) removes ISI from the interference cancelled signals. In the initial and subsequent demodulation processes, ISI removal includes a time reversal combining process followed by a single-channel decision feedback equalization (DFE) process.

Ultrasonic transducer device, probe, electronic instrument, and ultrasonic diagnostic device

An ultrasonic transducer device includes a substrate, a plurality of ultrasonic transducer elements, a wiring substrate and a wiring member. The substrate defines a plurality of openings arranged in an array pattern. Each of the ultrasonic transducer elements is provided in each of the openings on a first surface of the substrate. The wiring substrate is arranged to face a second surface of the substrate that is opposite from the first surface. The wiring substrate includes a first wiring part. The wiring member is connected to the substrate and the wiring substrate. The wiring member includes a second wiring part electrically connecting the ultrasonic transducer elements to the first wiring part.

SWITCHING CIRCUIT FOR A TRANSMISSION CHANNEL FOR ULTRASOUND APPLICATIONS, TRANSMISSION CHANNEL AND PROCESS FOR DRIVING A SWITCHING CIRCUIT

A switching circuit for transmission channel for ultrasound applications is electrically coupled between a connection terminal and a low voltage output terminal. The switching circuit includes a receiving switch, a high voltage clamp circuit electrically coupled between the connection terminal and a central node, and a low voltage clamping switch electrically coupled between said central node and a reference voltage. The receiving switch is a low voltage switch and is electrically coupled between the central node and the low voltage output terminal. The clamping switch and the receiving switch are controlled in a complementary way with respect to each other. A transmission channel for ultrasound applications includes the switching circuit 1. A switching circuit for a transmission channel for ultrasound applications , comprising:a connection terminal configured to be electrically coupled to the transmission channel;a low voltage output terminal;a reference voltage terminal;a high voltage clamp circuit electrically coupled between said connection terminal and an inner node;a low voltage clamping switch electrically coupled between said inner node and the reference voltage terminal; anda low voltage receiving switch electrically coupled between said inner node and said low voltage output terminal, said clamping switch and said receiving switch being configured to be controlled in a complementary way with respect to each other.2. The switching circuit according to claim 1 , wherein said clamp circuit comprises a first and a second switching transistor electrically coupled between said connection terminal and said inner node and having respective control terminals claim 1 , said first and second switching transistors being high voltage MOS transistors claim 1 , the switching circuit further comprising a driving block electrically coupled to the control terminals of the first and second switching transistors.3. The switching circuit according to claim 2 , wherein: a third ...

Angle-based speed estimation of alternating current machines utilizing a median filter

A computer-implemented method for estimating a rotor speed of an alternating current (AC) machine is provided. The method includes determining a stator flux signal based on signals of voltage and current inputs to the AC machine, and determining a rotor flux signal of the AC machine based on the determined stator flux signal. The method includes determining an electrical angle signal based on the determined rotor flux signal, and deriving an electrical frequency signal from the determined electrical angle signal. Subsequently, the method includes sampling the derived electrical frequency signal at a predetermined sampling rate, and storing a predetermined number of sample values. The method further includes evaluating a median value of the predetermined set of electrical frequency sample values, determining a slip frequency value of the AC machine, and determining the rotor speed of the AC machine by subtracting the slip frequency value from the electrical frequency median value.

METHODS AND APPARATUSES FOR COMMUNICATION OF AUDIO TOKENS

An apparatus for transmitting audio tokens includes an acoustic transmitter to generate a range of audio frequencies including an infrasonic range, a sonic range, and an ultrasonic range. An audio token generator assembles the audio tokens, which include a timestamp and an identifier, and modulates the audio token in to the range of audio frequencies. A synchronizer determines the timestamp relative to an input audio stream and a mixer mixes the audio stream and the audio token for presentation by the acoustic transmitter. An apparatus for receiving the audio tokens includes an acoustic receiver to receive the range of audio frequencies. An audio token extractor extracts the audio token including the timestamp and the identifier from the range of audio frequencies. An interpreter determines user information responsive to at least one of the timestamp and the identifier and a user interface element present the user information to a user. 1. An apparatus for transmitting one or more audio tokens , comprising:an acoustic transmitter configured to generate transmitted audio over a range of audio frequencies within one or more of an infrasonic range, a sonic range, and an ultrasonic range; assemble an audio token including a timestamp and an identifier;', 'modulate the audio token onto one or more frequencies in the range of audio frequencies;, 'an audio token generator configured toa synchronizer for determining the timestamp relative to an input audio stream; anda mixer for mixing the input audio stream and the audio token for presentation by the acoustic transmitter as the transmitted audio.2. The apparatus of claim 1 , wherein the one or more frequencies are in the infrasonic range.3. The apparatus of claim 1 , wherein the one or more frequencies are in the infrasonic range.4. The apparatus of claim 1 , wherein the one or more frequencies are in a range of about 18 kHz to about 20 kHz.5. The apparatus of claim 1 , wherein the one or more frequencies are in the sonic ...

Ultrasound-based localization of client devices in distributed communication systems, and related devices, systems, and methods

A plurality of spatially located ultrasound beacons are provided in known locations within a distributed communications system. Each of the ultrasound beacons is configured to emit ultrasound pulses that can be received by client devices in ultrasound communication range of the ultrasound beacons. The client devices are configured to analyze the received ultrasound pulses from the beacons to determine their time-difference of arrival and as a result, their location in the distributed communications systems. Use of ultrasound pulses can provide greater resolution in location determination of client devices since ultrasound waves experience strong attenuation in building walls, ceilings, and floors, thus avoiding detection of ultrasound waves from other ultrasound beacons not located in proximity to the client devices.

SYSTEM AND METHOD FOR VIBRATION MEDIATED NETWORKS

A system and method to enable vibration mediated communication between electrical devices such as photovoltaic solar panel controllers. The electrical devices may be connected to a mesh network with individual router devices. The individual router devices will send and receive data packets by creating or detecting vibrations in a solid vibration conducting media (such as the solar power wiring) that connects the individual electrical devices. Often at least one centralized control device is used to periodically request sensor data packets from the individual router devices and electrical devices. When the electrical devices are photovoltaic solar arrays, the centralized control device may, for example, be used to compute the proper adjustments for the solar arrays that will optimize the overall power output from the photovoltaic solar array. The control device will then send adjustment data packets back to the individual router devices through the mesh network, thus optimizing overall power output. 1. A data communications device for an electrical device , said data communications device comprising:at least one electrically driven vibration transducer capable of inducing vibrations in a solid media;said electrically driven vibration transducer being a component of an electrical circuit that is in electrical contact with said electrical device;said solid media being capable of transmitting said vibrations to an external vibration receiver;wherein said vibrations are used to communicate data.2. The device of claim 1 , additionally comprising at least one vibration receiver;said vibration receiver being capable of converting said vibrations into a received electrical signal;said vibration receiver being a component of an electrical circuit that is in electrical contact with said electrical device.3. The device of claim 1 , wherein said vibrations are sonic or ultrasonic acoustic vibrations generating either surface acoustic waves or bulk waves in said solid media.4. ...

SENSOR AND A SENSOR SYSTEM

The invention relates to a sensor and a system for measuring pressure, variation in sound pressure, a magnetic field, acceleration, vibration, or the composition of a gas. The sensor comprises an ultrasound transmitter, a cavity, and a passive sensor element. In accordance with the invention the sensor includes antenna means for receiving radio frequency signals (f, f), and connecting means connecting the antenna to the ultrasound transmitter for using the radio frequency signals for providing energy for driving the ultrasound transmitter. 1. A wireless sensor which comprises;an electrostatically actuated ultrasound transmitter loaded with a fluid-filled cavity, andan antenna or a coupling element matched to the ultrasound transmitter.2. A wireless sensor in for measuring pressure , variation in sound pressure , a magnetic field , acceleration , vibration , strain , stress , torque , temperature , electric field , electromagnetic radiation , viscosity of fluid , specific heat capacity of fluid , fluid flow , or the composition of a gas , comprising;an ultrasound transmitter having a light-construction diaphragm oscillator which is well connected to the surrounding medium,a cavity arranged in connection with the ultrasound transmitter which affects the mechanical impedance of the ultrasound transmitter,{'sub': 1', '2, 'claim-text': {'sub': 1', '2', '3, 'wherein the antenna for receiving radio frequency signals (f, f) is capable of acting as means for sending radio frequency signals (f) based on the interaction between the ultrasound transmitter and the cavity.'}, 'a sensor having a passive sensor element located at the opposite end of the cavity to the ultrasound transmitter or a means to allow a measured fluid inside the cavity, an antenna for receiving radio frequency signals (f, f), and a connecting means connecting the antenna to the ultrasound transmitter for using the radio frequency signals for providing energy for driving the ultrasound transmitter,'}3. A ...

Method and apparatus for transmitting sound waves in water

Provided are a method and apparatus for transmitting sound waves in water. The method for transmitting sound waves in water includes generating a sound wave signal, and transmitting the sound wave signal in water, generating a compensation signal for preventing distortion due to water vibration in an audible frequency band, and simultaneously transmitting the compensation signal and the sound wave signal in water. Accordingly, an apparatus for receiving sound signals is not required, and direct contact between a human body and an apparatus for transmitting sound signals is not required, thereby improving convenience of use. In addition, even when a human body is constantly moving, a superior contact condition may be provided, and therefore sound waves may be more effectively transmitted to a user.

Home network of connected consumer devices

A lighting device has a light emitter receptacle, a power connector configured to connect to a power source, the power connector connected to the receptacle, and a communication module. A network of lighting devices has a plurality of lighting devices, each light device including a communications module, and a light emitter receptacle. The network is a wireless, ad hoc network having nodes corresponding to the lighting devices, wherein one of the lighting devices acts as a master node, the master node having a port connected to an external network and a nonvolatile memory.

ULTRASONIC TRANSMISSION OF SIGNALS

Described herein are devices and systems that transmit data from a first device using an ultrasonic digital modem to a second device that receives the ultrasonic signal and can interpret the ultrasonic signal. The second device may be a telecommunications device such as a smartphone running an ultrasonic digital modem receiver application. In particular, devices, systems and methods for encoding and transmitting an ultrasonic signal that includes both digital (e.g., FSK) and analog signal components. Such hybrid ultrasonic signals may efficiently and reliably transmit information, and particularly biological information. Also described herein are devices, systems and methods for securely transmitting ultrasonic signals using encryption keys that may be read by the receiving device using a separate (e.g., non-ultrasound modality) from the transmitting device. 1. A digital ultrasonic modem device for ultrasonically and securely transmitting digital data , the device comprising:a microprocessor;an ultrasonic transducer;an encryption key located on the device; andultrasonic transmission logic that configures digital data for acoustic transmission by the ultrasonic transducer at frequencies at or above 17 KHz, the ultrasonic transmission logic further configured to encrypt the digital data so that it may be decrypted according to the encryption key.2. The device of claim 1 , wherein the ultrasonic transducer is a piezoelectric speaker.3. The device of claim 1 , wherein the encryption key is visible on the device.4. The device of claim 1 , wherein the encryption key comprises a barcode.5. The device of claim 1 , wherein the encryption key comprises a QR code.6. A system for secure ultrasonic transmission of data claim 1 , the system comprising:an ultrasonic communications device comprising an ultrasonic transducer, an encryption key located on the ultrasonic communications device, and ultrasonic transmission logic that configures digital data for acoustic transmission by ...

SYSTEM AND METHOD FOR BROADBAND DOPPLER COMPENSATION

A Doppler compensation system includes a transmitter unit for transmitting a signal, wherein the transmitted signal being associated with an emission time-scale, a receiving unit for receiving a signal, wherein the received signal is associated with a receive time-scale that is not equivalent to the emission time-scale, and a Doppler compensating unit configured to estimate an inverse temporal distortion function, wherein the Doppler compensating unit implements the inverse temporal distortion function to estimate the transmitted signal. 1. A Doppler compensation system , comprising:a transmitter unit for transmitting a signal, wherein the transmitted signal being associated with an emission time-scale;a receiving unit for receiving a signal, wherein the received signal is associated with a receive time-scale that is not equivalent to the emission time-scale;a Doppler compensating unit configured to estimate an inverse temporal distortion function, wherein the Doppler compensating unit implements the inverse temporal distortion function to estimate the transmitted signal.2. The system of claim 1 , wherein the Doppler compensation unit uses the inverse temporal distortion function to re-sample the received signal according to the emission time-scale.3. The system of claim 1 , wherein the transmitted signal is modulated at a predetermined carrier frequency.4. The system of claim 3 , wherein the receiving unit demodulates the received signal before the Doppler compensation unit.5. The system of claim 1 , wherein the transmitted signal comprises a sequence of data symbols.6. The system of claim 5 , wherein the data symbols are estimated based on outputs of the Doppler compensation unit.7. The system of claim 6 , wherein the estimated data symbols are phase-adjusted.8. The system of claim 6 , wherein the data symbols are estimated by using a channel equalizer.9. The system of claim 8 , wherein each output of the channel equalizer is phase-adjusted.10. The system of claim ...

System for Delivering Data to Users

A system for delivering data to a user includes a beverage container provided with an electronic device having an electronic display, and a portable electronic apparatus, such as an electronic mobile phone or an electronic tablet, so that a user operates the portable electronic apparatus to compose data, which are transmitted via ultra-sound to the beverage container and displayed on its electronic display.

Underwater acoustic multiple-input/multiple-output (mimo) communication systems and methods

Methods and systems for acoustic multiple-input/multiple-output (MIMO) communication in an underwater environment. The method includes: a) receiving signals at multiple receivers representing transmitted signals from multiple transmitters, b) estimating channel responses between the multiple receivers and the multiple transmitters, c) performing an initial demodulation process on the received signals using the estimated channel responses to remove inter-symbol interference (ISI), and d) performing at least one subsequent demodulation process on the received signals. The subsequent demodulation process: i) removes co-channel interference (CoI) using the estimated channel responses and demodulated signals from an immediately preceding demodulation process to form interference cancelled signals and ii) removes ISI from the interference cancelled signals. In the initial and subsequent demodulation processes, ISI removal includes a time reversal combining process followed by a single-channel decision feedback equalization (DFE) process.

SELF-PROPELLED BUOY FOR MONITORING UNDERWATER OBJECTS

Various embodiments of the invention provide a buoy and system for monitoring divers and other underwater objects. In many embodiments, the buoy has capabilities to monitor a diver, obtain position information about the diver and use that information to move itself to an effective range for continued monitoring. The buoy can connect and communicate with a communication device attached to a diver to communicate, position, biometric and other data. In one embodiment, the buoy comprises a propulsion system for propelling the buoy, an acoustic communication module for communicating with the diver and a propulsion controller for controlling the propulsion system to move to the effective range. Other embodiments provide a power generation system using a power generating buoy comprising an inertial weight, an energy converter and a connecting linkage. The system may comprise a single or multiple buoys and can include an electrical storage such as an electrical battery. 1a propulsion system for propelling the buoy;an acoustic communication module configured to at least receive acoustic communications from a communication device that is associated with an object located in water underneath the buoy; anda propulsion controller that identifies, from the acoustic communications received by the acoustic communication module, position information for the communication device of the underwater object, wherein the propulsion controller outputs control information to control the propulsion system of the buoy to stay within a selected distance of the object.. A self-propelled buoy for communication with an underwater object, the buoy comprising: This application is a Continuation of U.S. application Ser. No. 13/231,881, filed Sep. 13, 2011, titled “Self-Propelled Buoy for Monitoring Underwater Objects”, which claims benefit of priority to U.S. Provisional Application No. 61/382,438, filed Sep. 13, 2010, titled “Self-Propelled Buoy For Monitoring Underwater Objects”, and claims ...

DEVICE, METHOD AND PROGRAM FOR PROCESSING SIGNAL, UNDERWATER DETECTING DEVICE AND RADAR APPARATUS

A signal processor for processing target echo signal is provided. The signal processor includes a filter configured to generate a filtered echo signal by extracting echo signal components within a predetermined frequency band from the target echo signal, a high resolution signal generator configured to generate a high resolution signal based on the target echo signal, and a synthesizing module configured to synthesize the filtered echo signal with the high resolution signal. The high resolution signal has higher resolution than the filtered echo signal. 1. A signal processor for processing target echo signal , comprising:a filter configured to generate a filtered echo signal by extracting echo signal components within a predetermined frequency band from the target echo signal;a high resolution signal generator configured to generate a high resolution signal based on the target echo signal, the high resolution signal having higher resolution than the filtered echo signal; anda synthesizing module configured to synthesize the filtered echo signal with the high resolution signal.2. The signal processor of claim 1 , wherein the synthesizing module synthesizes the filtered echo signal with the high resolution signal based on an intensity of the filtered echo signal and an intensity of the high resolution signal.3. The signal processor of claim 2 , wherein the synthesizing module synthesizes the filtered echo signal with the high resolution signal based on an intensity of a first sample sampled from the high resolution signal and an intensity of a second sample sampled from the filtered echo signal claim 2 , said first and second samples being corresponding samples.4. The signal processor of claim 3 , wherein the synthesizing module synthesizes the filtered echo signal with the high resolution signal by selecting a sample with a lowest intensity between the first and second samples.5. The signal processor of claim 3 , wherein the synthesizing module synthesizes the ...

ULTRASONIC DISCOVERY PROTOCOL FOR DISPLAY DEVICES

A computing system is provided that includes a primary display and a secondary display operatively coupled to a processor and configured to transmit a first signal and a second signal, respectively. The processor is configured to execute an ultrasonic discovery protocol upon detection of a positional trigger event. Execution of the ultrasonic discovery protocol by the processor causes the primary display device to transmit the first signal as an acoustic signal that is received by the secondary display device. In response to receiving the first signal, the secondary display device transmits the second signal to the primary display device. The second signal encodes data that indicates a positional relationship between the primary display device and the secondary display device. Based on the indicated positional relationship, the visual data is cooperatively displayed by the primary and secondary display devices. 1. A computing system capable of displaying visual data over a plurality of display devices , the computing system comprising:a processor configured to execute an ultrasonic discovery protocol;a primary display device operatively coupled to the processor and configured to transmit a first signal; anda secondary display device operatively coupled to the processor and configured to transmit a second signal, whereinthe ultrasonic discovery protocol is programmatically executed upon detection of a positional trigger event;execution of the ultrasonic discovery protocol by the processor causes the primary display device to transmit the first signal, the first signal being an acoustic signal received via a microphone array of the secondary display device;in response to receiving the first signal, the secondary display device transmits the second signal to the primary display device, the second signal encoding data that indicates a positional relationship between the primary display device and the secondary display device; andthe primary and secondary display devices ...

HYDROACOUSTIC COMMUNICATION SYSTEM AND RECEIVING APPARATUS

An underwater acoustic communication system includes a transmission device including N transmitters, and a reception device. The reception device includes M (M is an integer of two or more) receivers configured to receive M reception signal sequences corresponding to N transmission signal sequences transmitted from the N transmitters through sound waves, a beam former configured to suppress multipath waves other than direct waves of the M received reception signal sequences and to generate L (L is an integer of two or more) signal sequences from the M reception signal sequences, and a signal estimation unit configured to estimate the N transmission signal sequences based on the L generated signal sequences. 1. An underwater acoustic communication system , comprising:a transmission device including N (N is an integer of two or more) transmitters; anda reception device, whereinthe reception device comprises:M (M is an integer of two or more) receivers configured to receive M reception signal sequences corresponding to N transmission signal sequences transmitted from the N transmitters through sound waves;a beam former configured to suppress multipath waves other than direct waves of the M received reception signal sequences and to generate L (L is an integer of two or more) signal sequences from the M reception signal sequences; anda signal estimator configured to estimate the N transmission signal sequences based on the L generated signal sequences,wherein each of the N transmitters, the M receivers, the beam former and the signal estimator is implemented by:i) computer executable instructions executed by at least one processor,ii) at least one circuitry oriii) a combination of computer executable instructions executed by at least one processor and at least one circuitry.2. The underwater acoustic communication system according to claim 1 , wherein:a result value obtained by multiplying an interval of the transmitters and an interval of the receivers is an integer ...

REMOTE CONTROL APPARATUS, CONTROL METHOD THEREOF AND ELECTRONIC SYSTEM

A remote control apparatus is provided. The remote control apparatus according to an embodiment includes an inputter comprising input circuitry, a communicator comprising communication circuitry, a microphone, and a processor configured to control the communicator to transmit a first Bluetooth packet requesting an electronic apparatus to output a non-audible sound based on a control command being input through the inputter in a state where the remote control apparatus is not paired, obtain identification information of the electronic apparatus based on the non-audible sound output by the electronic apparatus corresponding to the first Bluetooth packet being received through the microphone, and control the communicator to transmit a second Bluetooth packet including the obtained identification information and a turn-on command to the electronic apparatus. 1. A remote control apparatus , comprising:an inputter comprising input circuitry;a communicator comprising communication circuitry;a microphone; anda processor configured to:control the communicator to transmit a first Bluetooth packet requesting an electronic device to output a non-audible sound based on a control command being input through the inputter in a state where the remote control apparatus is not paired,obtain identification information of the electronic apparatus based on the non-audible sound output by the electronic apparatus corresponding to the first Bluetooth packet being received through the microphone, andcontrol the communicator to transmit a second Bluetooth packet including the obtained identification information and a turn-on command to the electronic apparatus.2. The apparatus as claimed in claim 1 , wherein the processor is further configured to claim 1 , based on a plurality of non-audible sounds being received through the microphone after the first Bluetooth packet is transmitted claim 1 , obtain the identification information of the electronic apparatus from one of the plurality of non- ...

ACOUSTIC INFORMATION TRANSFER

Embodiments disclosed herein provide systems and methods for acoustically transferring information between systems. In a particular embodiment, a method provides identifying information for acoustic transfer and determining an amount of time corresponding to the information. The method further provides acoustically transmitting a signal at a first time and, upon the amount of time elapsing since the first time, acoustically transmitting the signal at a second time. 1. A method of acoustically transferring information , comprising:identifying information for acoustic transfer;determining an amount of time corresponding to the information;acoustically transmitting a signal at a first time; andupon the amount of time elapsing since the first time, acoustically transmitting the signal at a second time.2. The method of claim 1 , further comprising:receiving the signal transmitted at the first time and the signal transmitted at the second time; andderiving the information based on a time period between receipt of the signal transmitted at the first time and receipt of the signal transmitted at the second time.3. The method of claim 2 , wherein deriving the information based on a time period between receipt of the signal transmitted at the first time and receipt of the signal transmitted at the second time comprises:determining a correlation between the signal transmitted at the first time and the signal transmitted at the second time;determining the time period as a time between peaks resulting from the correlation; andidentifying the information that corresponds to the time period.4. The method of claim 1 , wherein the amount of time comprises an amount of digital audio samples.5. The method of claim 4 , wherein the information comprises a number and the number equals the amount of digital audio samples.6. The method of claim 1 , further comprising:before the first time, acoustically transmitting two synchronization signals for receiver synchronization, wherein a time ...

SYSTEMS AND METHODS FOR DOWNLOADING DATA FROM A MONITORING DEVICE TO A MOBILE DEVICE

Systems and methods for downloading data from a monitoring device to a mobile device are provided. Such systems and methods can include the monitoring device transmitting, via an audio generating device, data to the mobile device in a non-audible, high frequency audio signal, a microphone of the mobile device receiving the non-audible, high frequency audio signal, and a processor of the mobile device decoding the data from the non-audible, high frequency audible signal. 1. A system comprising:a monitoring device that includes an audio generating device; anda mobile device that includes a microphone and a processor,wherein the monitoring device transmits, via the audio generating device, data to the mobile device in a non-audible, high frequency audio signal, andwherein the mobile device receives, via the microphone, the non-audible, high frequency audio signal and decodes, via the processor, the data from the non-audible, high frequency audio signal.2. The system of wherein the processor compensates for frequency error in the non-audible claim 1 , high frequency audio signal by estimating missing portions of the data from uncorrupted portions of the data.3. The systems of wherein the monitoring device transmits the data at a high speed.4. The system of wherein the high speed enables the monitoring device to complete transmission of the data to the mobile device in at least 30 seconds.5. The system of wherein the high frequency is at least 18 kHz.6. The system of wherein the high frequency is approximately 20 kHz.7. The system of wherein the monitoring device uses variable length data coding to decrease a download time for the data.8. The system of wherein the mobile device includes a user device or a smart phone.9. The system of wherein the monitoring device includes a smoke detector claim 1 , a carbon monoxide detector claim 1 , a fire detector claim 1 , or an IoT device.10. A method comprising:a monitoring device transmitting, via an audio generating device, data ...

VEHICLE COMMUNICATION SYSTEM AND METHOD

A spacecraft including a frame including a joint coupling a first frame portion to a second frame portion, and an acoustic communication system configured to transfer acoustic data signals across the joint between the first frame portion and the second frame portion. 1. A spacecraft comprising:a frame including a joint coupling a first frame portion to a second frame portion; andan acoustic communication system configured to transfer acoustic data signals across the joint between the first frame portion and the second frame portion.2. The spacecraft of claim 1 , wherein the joint includes a forced coupling system configured to bias the first frame portion against the second frame portion in a zero gravity environment so as to form an acoustic data transmission conduit from the first frame portion to the second frame portion.3. The spacecraft of claim 2 , wherein the forced coupling system comprises:a lever arm coupled to one of the first frame portion and the second frame portion; anda biasing member coupled to both the first frame portion and the second frame portion.4. The spacecraft of claim 1 , wherein the joint comprises:a hinge pin;a first hinge leaf including a first knuckle portion, the first Buckle portion pivotally coupling the first hinge leaf to the hinge pin; anda second hinge leaf including a second knuckle portion, the second knuckle portion pivotally coupling the second hinge leaf to the hinge pin.5. The spacecraft of claim 1 , wherein the joint comprises:a first joint portion having a longitudinal axis;a second joint portion configured to move axially along the longitudinal axis of the first joint portion so as to form a telescoping joint; anda biasing member disposed between the first joint portion and the second joint portion.6. The spacecraft of claim 1 , wherein the acoustic communication system comprises:a first data module;a first acoustic transducer in communication with the first data module, the first acoustic transducer being coupled to ...

TRANSMITTER-RECEIVER SEPARATION SYSTEM FOR FULL-DUPLEX UNDERWATER ACOUSTIC COMMUNICATION SYSTEM

In one aspect, an acoustic full-duplex communication system includes a transmitter array having at least two transmitters. The transmitters are positioned along an axis of maximum transmission and are separated by about half of a wavelength of a transmission frequency band. The transmitters transmit waveforms of opposing polarity that mutually interfere in a plane orthogonal to the transmission axis. The system includes a receiver array having at least one receiver in the orthogonal plane. In a second aspect, an underwater acoustic full-duplex communication system includes a transmitter and two receivers. The receivers are symmetrically positioned about an axis, separated by about half of a wavelength of a transmission frequency band, and equidistant from the transmitter. The receivers are connected in opposing polarity. Either aspect may include an adaptive filter to improve cancellation of transmitter originated near field transmissions received by the one or more receivers. 1. A communication system for underwater acoustic full-duplex communication , the communication system comprising: positioned along an axis of a radiation pattern maximum;', 'separated by a distance approximately equal to a half wavelength of a central frequency of the working frequency band; and', 'configured to transmit waveforms with opposite polarity that interfere to produce near-zero sound pressure in a silent plane perpendicular to the axis; and, 'a transmitter comprising a transmitter array, wherein the transmitter array comprises a first transmitter and a second transmitter, and wherein the first transmitter and the second transmitter area receiver comprising a receiver array, wherein the receiver array comprises at least one receiver positioned in the silent plane.2. The communication system of claim 1 , wherein the first transmitter and the second transmitter are positioned in a near field of the transmitter.3. The communication system of claim 1 , wherein the receiver array ...

Wireless communication

A method for use in controlling pressure based signal transmission within a fluid in a flowline includes transmitting a pressure based signal through a fluid within a flowline using a flow control device, recognising a condition change associated with the flowline, and then controlling the flow control device in accordance with the condition change. Another method, or an associated method for use in communication within a flowline includes determining or composing an optimised pressure based signal for detection at a remote location and then transmitting the optimised signal using a flow control device.

Ultrasonic Communication Phased Array

The present disclosure provides an external transceiver configured for ultrasonic communication with a medical implant, the external transceiver including an array of ultrasonic transducers configured to be placed adjacent to a patient's skin and each ultrasonic transducer of the array of ultrasonic transducers configured to send and receive an ultrasonic signal. 1. An external transceiver configured for ultrasonic communication with medical implants , the external transceiver comprising:an array of ultrasonic transducers configured to be placed adjacent to a patient's skin and each ultrasonic transducer of the array of ultrasonic transducers configured to send and receive an ultrasonic signal.2. The external transceiver of claim 1 , the array of ultrasonic transducers comprising a phased array.3. The external transceiver of claim 2 , the phased array configured to set an azimuthal focal point and steer the azimuthal focal point relative to the phased array.4. The external transceiver of claim 3 , the phased array configured to steer the azimuthal focal point laterally and change a lateral position of the azimuthal focal point relative to the phased array.5. The external transceiver of claim 3 , the phased array configured to steer the azimuthal focal point and change a focal depth of the azimuthal focal point relative to the phased array.6. The external transceiver of claim 3 , the phased array configured to change a width of a focal plane at the azimuthal focal point relative to the phased array.7. A system for ultrasonic communication in medical implants claim 3 , the system comprising:an implant configured to be implanted within a patient, the implant comprising an ultrasonic transducer configured to transmit and receive ultrasonic signals; andan external transceiver configured to communicate with the implant using an ultrasound signal, the external transceiver comprising: an array of ultrasonic transducers configured to be placed adjacent to a patient's skin ...

METHOD AND APPARATUS FOR ACOUSTICAL POWER TRANSFER AND COMMUNICATION USING STEEL WEDGES

Systems and methods for transmitting power and information using acoustic energy produced by transducers are provided. The systems have particular application for powering and communication with electronics through drilling and pipe systems. Pairs of acoustic wedges holding transducers are provided for sending energy and information through a substrate which may be a steel pipe. Each wedge has an angled transducer which can be used to produce shear waves. The waves propagate through the substrate and are received by a second acoustic wedge. The shear waves, on reaching the second acoustic wedge, are converted back into electrical signals by a second transducer. Tangential shear waves, high, shallow wave transmission angles, and direct steel-steel bonding between wedges and substrates may be used. 1. A method of transmitting at least one of power and signals along a steel oil pipe using tangential shear waves , the method comprising:providing a transmitting arrangement and a receiving arrangement spaced apart on a steel oil pipe;wherein the transmitting arrangement is above ground level and wherein the receiving arrangement is below ground level;wherein the oil pipe has concrete on at least a portion of an outer surface, and wherein, in an operative state, oil is in contact with an inner surface of the oil pipe;wherein each transmitting arrangement comprises a steel transmitting wedge and a transmitting transducer coupled to the transmitting wedge, and wherein each receiving arrangement comprises a steel receiving wedge and a receiving transducer coupled to the receiving wedge;wherein each transmitting wedge and each receiving wedge are directly bound to a surface of the oil pipe by a direct steel-steel bond;wherein the transmitting transducer comprises a flat transmitting face for emitting tangential shear waves, the transmitting face of the transmitting transducer being coupled to an angled face of the transmitting wedge;wherein the transmitting face of the ...

NETWORKED ACOUSTIC SENSOR UNITS FOR AN ECHO-BASED ENVIRONMENT DETECTION

An acoustic sensor unit for an echo-based environment detection. The acoustic sensor unit includes a transmission unit, which is set up to emit an acoustic signal, a communications interface, and a control electronics, which is set up to output a signal via the communications interface in order to transmit information to a further acoustic sensor unit and to receive a signal from the further acoustic sensor unit via the communications interface. The acoustic sensor units are connected to one another via a bus or a network node and to a central control unit. 110-. (canceled)11. An acoustic sensor unit for an echo-based environment detection , comprising:a transmission unit configured to emit an acoustic signal;a communications interface; and output a signal via the communications interface in order to transmit information to a further acoustic sensor unit, and', 'receive a signal from the further acoustic sensor unit via the communications interface., 'a control electronics configured to12. The acoustic sensor unit as recited in claim 11 , wherein the control electronics is configured to:output a control signal via the communications interface to actuate the further acoustic sensor unit to supply sensor information which describes a property of the acoustic signal when the acoustic signal is received by the further acoustic sensor unit;receive sensor information via the communications interface;generate object information which describes a property of an object at which the acoustic signal was reflected based on properties of the emitted acoustic signal and the sensor information; andoutput the object information via the communications interface.13. The acoustic sensor unit as recited in claim 12 , wherein in response to a start signal received via the communications interface claim 12 , the acoustic sensor unit is configured to:output the acoustic signal via the transmission unit;output the control signal via the communications interface;receive the sensor ...

ELECTRONIC TRANSACTIONS WITH MOBILE COMMUNICATIONS DEVICES VIA ENCODED ACOUSTIC SIGNALS

Information is exchanged between a mobile communications device and an automated information system. The mobile communications device is equipped with an acoustic transmitter (speaker) and an acoustic receiver (microphone), and the automated information system is equipped with an acoustic transmitter (speaker) and an acoustic receiver (microphone). The automated information system transmits a first acoustic signal encoded with a first dataset. The mobile communications device receives the first acoustic signal, decodes the first dataset, processes the first dataset, generates a second dataset, encodes the second dataset in a second acoustic signal, and transmits the second acoustic signal. The automated information system receives the second acoustic signal, decodes the second dataset, and processes the second dataset. 1. A method for exchanging information at a mobile communications device comprising an acoustic receiver and an acoustic transmitter , the method comprising the steps of:receiving at the acoustic receiver a first acoustic signal encoded with a first dataset;decoding the first acoustic signal to regenerate the first dataset, the first dataset comprising billing information;generating a second dataset based at least in part on the regenerated first dataset, the second dataset comprising payment instructions determined based on the billing information;encoding the second dataset in a second acoustic signal; andtransmitting the second acoustic signal from the acoustic transmitter.2. The method of claim 1 , further comprising the step of:receiving user input based at least in part on the regenerated first dataset.3. The method of claim 2 , wherein the step of generating a second dataset based at least in part on the regenerated first dataset further comprises the step of:generating the second dataset based at least in part on the regenerated first dataset and based at least in part on the received user input.4. The method of claim 1 , further comprising ...

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 FOR MONITORING TEMPERATURE AND OTHER CONDITIONS IN WATER BODIES

A monitoring system is disclosed herein. In various aspects, the monitoring system may include a sensor mounted upon a submersible probe to detect sensor data at a depth within a water body, and a mobile device in communication with the sensor to receive the sensor data. The mobile device may be in communication with the Internet cloud to communicate data with the Internet cloud, the data comprising the sensor data and additional sensor data from additional probes geographically disposed about the water body at known GPS locations. An app may be operably engaged with the mobile device and with the Internet cloud to control the communication of data between the mobile device and the Internet cloud, and the app may integrates the data for on the mobile device in real time. This Abstract is presented to meet requirements of 37 C.F.R. §1.72(b) only. This Abstract is not intended to identify key elements of the apparatus and methods disclosed herein or to delineate the scope thereof. 1. A monitoring system , comprising:a sensor mounted upon a submersible probe to detect sensor data at a depth within a water body;a mobile device in communication with the sensor to receive the sensor data, the mobile device in communication with the Internet cloud to communicate data with the Internet cloud, the data comprising the sensor data and additional sensor data from additional probes geographically disposed about the water body at known GPS locations; and,an app operably engaged with the mobile device and with the Internet cloud to control the communication of data between the mobile device and the Internet cloud, the app integrates the data for on the mobile device in real time.2. The apparatus of claim 1 , said probe data comprising depth and corresponding temperature at the known GPS location.3. The apparatus of claim 1 , said probe data comprising depth and corresponding water velocity at the known GPS location.4. The apparatus of claim 1 , said data selected from a list ...

BROADBAND UNIDIRECTIONAL ULTRASOUND PROPAGATION

A passive, linear arrangement of a sonic crystal-based apparatus and method including a 1D sonic crystal, a nonlinear medium, and an acoustic low-pass filter, for permitting unidirectional broadband ultrasound propagation as a collimated beam for underwater, air or other fluid communication, are described. The signal to be transmitted is first used to modulate a high-frequency ultrasonic carrier wave which is directed into the sonic crystal side of the apparatus. The apparatus processes the modulated signal, whereby the original low-frequency signal exits the apparatus as a collimated beam on the side of the apparatus opposite the sonic crystal. The sonic crystal provides a bandpass acoustic filter through which the modulated high-frequency ultrasonic signal passes, and the nonlinear medium demodulates the modulated signal and recovers the low-frequency sound beam. The low-pass filter removes remaining high-frequency components, and contributes to the unidirectional property of the apparatus. 1. An apparatus for generating a collimated acoustic signal having a frequency for a band of frequencies centered at f , from an input carrier signal having a frequency f>famplitude modulated by f , comprising:{'sub': 'c', 'a low-loss acoustic bandpass filter for receiving the modulated carrier signal, and having a bandwidth larger than an amplitude modulated sideband of the amplitude modulated f; and'}{'sub': c', 'm, 'an acoustic nonlinear medium for receiving and demodulating the amplitude modulated ffrom said acoustic bandpass filter, whereby a collimated acoustic signal having a frequency fis generated.'}2. The apparatus of claim 1 , further comprising a low-pass acoustic filter for preventing the carrier signal or the amplitude modulated carrier signal from being transmitted through said apparatus in the direction opposite to the generated collimated acoustic signal.3. The apparatus of claim 1 , wherein said input carrier signal famplitude modulated by fis generated by an ...

METHODS AND SYSTEMS FOR ACOUSTIC DATA TRANSMISSION

A method of communicating with an ingestible capsule includes detecting the location of the ingestible capsule, focusing a multi-sensor acoustic array on the ingestible capsule, and communicating an acoustic information exchange with the ingestible capsule via the multi-sensor acoustic array. The ingestible capsule includes a sensor that receives a stimulus inside the gastrointestinal tract of an animal, a bidirectional acoustic information communications module that transmits an acoustic information signal containing information from the sensor, and an acoustically transmissive encapsulation that substantially encloses the sensor and communications module, wherein the acoustically transmissive encapsulation is of ingestible size. The multi-sensor array includes a plurality of acoustic transducers that receive an acoustic signal from a movable device, and a plurality of delays, wherein each delay is coupled to a corresponding acoustic transducer. Each delay may be adjusted according to a phase of a signal received by the corresponding acoustic transducer. 115.-. (canceled)16. A transmitter , comprising:a bit splitter configured to parse an information signal into a first data stream and a second data stream;a differential frequency shift keying (DFSK) switch configured to select a first carrier frequency as a DFSK data stream when the second data stream is at a first logical value or a second carrier frequency as the DFSK data stream when the second data stream is at a second logical value;a phase shifting module configured to alter a phase of the DFSK data stream to produce a phase shifted DFSK data stream;a multiplier configured to multiply the first data stream by a delayed representation of its output to provide a DPSK switch control signal;a differential phase shift keying (DPSK) switch configured to select the phase shifted DFSK data stream when the DPSK switch control signal is at the first logical value or the DFSK data stream when the DPSK switch control ...

Systems and Methods for Providing a Tone Emitting Device that Communicates Data

Embodiments disclosed herein generally relate to systems and methods for communicating data with a tone-emitting device. A system for communicating an inaudible tone includes a tone-emitting device. The tone-emitting device includes a tone-emitting speaker for emitting an inaudible tone and a tone-determining computing device communicatively coupled to the tone-emitting speaker. The tone-determining computing device includes a non-transitory computer-readable medium that stores logic that, when executed by the tone-determining computing device, causes the tone-determining computing device to receive data related to a characteristic of an object, encode an inaudible tone that represents at least a portion of the data and send instructions to the tone-emitting speaker for outputting the inaudible tone. 1. A method for communicating data with a tone-emitting device comprising:receiving, by a tone-determining computing device of the tone-emitting device, data related to a characteristic of an object;encoding, by the tone-determining computing device, an inaudible tone that represents at least a portion of the data; andsending instructions by the tone-determining computing device, to a tone-emitting speaker of the tone-emitting device for outputting the inaudible tone.2. The method of claim 1 , wherein encoding the inaudible tone further comprises:selecting sounds corresponding to at least one pair of non-naturally occurring frequencies in a range between about 15 kHz and about 25 kHz;assigning the sounds corresponding to the at least one pair of frequencies a unique character;arranging the sounds to form the inaudible tone comprising a sequence of the unique characters; andpackaging the at least a portion of the data with the inaudible tone.3. The method of claim 1 , wherein the object includes at least one of the following: a product claim 1 , a person claim 1 , or a mobile device.4. A tone-emitting device comprising:a tone-emitting speaker for emitting an inaudible ...

COMMUNICATION WITH AN UNDERWATER VEHICLE

A method of communicating with an underwater vehicle comprising a propulsion system for propelling the vehicle through the water. A series of data sets are encoded and transmitted to the underwater vehicle in a series of signal bursts, and decoded at the underwater vehicle. The propulsion system is operated in a series of thrust pulses separated by drift periods such that the propulsion system operates at a relatively high rate during the thrust pulses and at a relatively low (or zero) rate during the drift periods. The drift periods are timed such that each signal burst arrives at the underwater vehicle during a drift period and not during a thrust pulse. The method may be performed with a single vehicle or a plurality of underwater vehicles. The encoded data signals are broadcast simultaneously to the underwater vehicles in the series of signal bursts. 1. A method of communicating with an underwater vehicle , the underwater vehicle comprising a propulsion system for propelling the vehicle through the water , the method comprising:a. encoding a series of data sets to produce a series of encoded data signals;b. transmitting the encoded data signals to the underwater vehicle in a series of signal bursts;c. operating the propulsion system in a series of thrust pulses separated by drift periods such that the propulsion system operates at a relatively high rate during the thrust pulses and at a relatively low (or zero) rate during the drift periods;d. timing the drift periods of the propulsion system such that each signal burst arrives at the underwater vehicle during a drift period and not during a thrust pulse; ande. decoding the signal bursts at the underwater vehicle to obtain the series of data sets.2. The method of wherein the vehicle comprises an annular hull with a duct claim 1 , and wherein water flows through the duct and generates lift during the thrust pulses and during the drift periods.3. The method of wherein the encoded data signals are transmitted to ...

AUDIO-BASED EXIT DETECTION AND PAYMENT CONFIRMATION FOR COMPUTING DEVICES

Methods and systems for improved exit detection, payment confirmation, and payment authorization verification are provided. In one embodiment, a method is provided that includes transmitting an audio transmission that includes a unique identifier of a facility. The audio transmission may be transmitted to a computing device, which may transmit in response an audio transmission containing a unique identifier and a payment confirmation identifier. The payment confirmation identifier may be compared to a database of payment information and it may be determined that the payment confirmation identifier corresponds to a completed payment. It may further be determined that the user has completed a payment and is permitted to exit the facility. 1. A method comprising:transmitting, to a first computing device, an audio transmission with a first unique identifier of a facility;receiving, from the first computing device, an audio transmission containing a first identifier of a user associated with the first computing device and a payment confirmation identifier;comparing the payment confirmation identifier to a database of payment information;determining that the payment confirmation identifier corresponds to at least one completed payment within the database of payment information; anddetermining that the user has completed a payment and is permitted to exit the facility.2. The method of claim 1 , wherein the first unique identifier is transmitted by a transmitter located near an exit of the facility.3. The method of claim 2 , further comprising (i) transmitting claim 2 , to the first computing device claim 2 , audio transmissions containing a second unique identifier of the facility.4. The method of claim 3 , further comprising (ii) receiving claim 3 , from the first computing device an audio transmission containing a second identifier of the user.5. The method of claim 4 , further comprising repeating (i) and (ii) until the second identifier is not received from the first ...

ACOUSTIC FREQUENCY INTERROGATION AND DATA SYSTEM

A system, in certain embodiments, includes a subsea acoustic frequency interrogation and data system. The subsea acoustic frequency interrogation and data system includes a master acoustic transceiver configured to broadcast an acoustic activation signal and an acoustic frequency interrogated data transmitter configured to generate power from the acoustic activation signal and activate a sensor configured to measure an operating parameter of subsea equipment. 120.-. (canceled)21. An acoustic frequency interrogation and data system , comprising:a master acoustic transceiver configured to broadcast an acoustic activation signal, wherein the acoustic activation signal comprises a high-power tone and an acoustic message, and wherein the high-power tone comprises at least 10 watts; andan acoustic frequency interrogated data transmitter comprising a sensor, wherein the acoustic frequency interrogated data transmitter is configured to generate power from the high-power tone of the acoustic activation signal and activate the sensor to measure an operating parameter of a working system using the acoustic message portion of the acoustic activation signal.22. The system of claim 21 , wherein the sensor of the acoustic frequency interrogated data transmitter is configured to shut down when the power generated from the high-power tone of the acoustic activation signal is consumed by the acoustic frequency interrogated data transmitter.23. The system of claim 21 , wherein the master acoustic transceiver comprises electronic circuitry comprising a power supply claim 21 , a system interface module claim 21 , and a communications module.24. The system of claim 23 , wherein the power supply is configured to provide power to the system interface module and the communications module claim 23 , the system interface module is configured to communicate with an instrumentation system of the working system claim 23 , and the communications module is configured to broadcast the acoustic ...

AQUATIC TIME SYNCHRONISATION SYSTEM AND METHOD OF DETERMINING A TIME OFFSET

An aquatic time synchronisation system includes an aquatic first acoustic communications apparatus capable of communicating acoustically with a dynamic aquatic second acoustic communications apparatus. The first acoustic communications apparatus includes a first time source and the second acoustic communications apparatus includes a second time source. The first acoustic communications apparatus is arranged to communicate a first acoustic signal to the second acoustic communications apparatus and the second acoustic communications apparatus is arranged to communicate a second acoustic signal to the first acoustic communications apparatus in reply to the first acoustic signal. The first acoustic communications apparatus is arranged to use data associated with the first and second acoustic signals in order to determine a time offset between the first and second time sources. 1. An aquatic time synchronisation system comprising:an aquatic first acoustic communications apparatus capable of communicating acoustically with a dynamic aquatic second acoustic communications apparatus, the first communications apparatus comprising a first time source and the second acoustic communications apparatus comprising a second time source; andan offset calculator; whereinthe first acoustic communications apparatus is arranged to communicate a first acoustic signal to the second aquatic acoustic communications apparatus and the second aquatic acoustic communications apparatus is arranged to communicate a second acoustic signal to the first aquatic acoustic communications apparatus in reply to the first acoustic signal; saidthe offset calculator is arranged to use data associated with the first and second acoustic signals in order to determine a time offset between the first and second time sources; andthe first aquatic acoustic communications apparatus is substantially static.2. The system according to claim 1 , whereinthe first acoustic signal has a first acoustic propagation path ...

System and Associated Methodology for Proximity Detection and Device Association Using Ultrasound

In one embodiment, a method includes receiving ultrasound frequency sweeps in a sound receiving device. Each of the plurality of ultrasound frequency sweeps is centered on one of at least two predetermined frequencies. The method also includes converting the ultrasound frequency sweeps into an ultrasound message based on a central frequency of each of the ultrasound frequency sweeps received, and placing the ultrasound message into a receive buffer. Then at least a network address is extracted from the ultrasound message, and the network address is used to establish a communication session over a data network with a telecommunications device. 1. (canceled)2. A method , comprising:storing a network address for communicating via a data network in an electronic memory;transmitting a message including the network address ultrasonically, via an ultrasound transmitter, as at least one ultrasound frequency sweep, the ultrasound frequency sweep being associated with a center frequency; andcommunicating with a terminal device via the data network in response to receipt of the message.3. The method of claim 2 , wherein the terminal device includes a smart phone claim 2 , a tablet computer claim 2 , or a laptop computer.4. The method of claim 2 , wherein the terminal device decodes the ultrasonically received message to connect to a telecommunication device including the electronic memory and the ultrasound transmitter.5. The method of claim 4 , wherein the terminal device and the telecommunication device are within a same room claim 4 , wherein ultrasonic transmission does not pass through walls of the room.6. The method of claim 1 , the method comprising:transmitting a second message including the network address ultrasonically, via the ultrasound transmitter.7. The method of claim 6 , wherein the terminal device is a first terminal device claim 6 , the method further comprising:communicating with a second terminal device via the data network in response to receipt of the ...

Ultrasonic transducer

Ultrasonic transducers that are capable of generating increased levels of ultrasound, as well as receiving ultrasonic waves with increased sensitivity. The ultrasonic transducers include a back cover, a protective front cover, a backplate, and a vibrator film layer disposed between the backplate and the protective front cover. The backplate includes a plurality of grooves formed on a surface thereof facing the vibrator film layer. Each groove includes upper edges having cross-sectional contours that gradually tend toward the deepest part of the groove to allow a larger area of the backplate to be closer to the vibrator film layer, thereby increasing the resulting electric field, and, consequently, increasing the output power and sensitivity of the ultrasonic transducer.

UNDERWATER COMMUNICATION USING ELECTRONIC DEVICES

Methods and devices may be used to perform underwater communication using one or more electronic devices. The one or more electronic devices include a first wireless transceiver configured to transmit first wireless signals through an air medium with the first wireless signals not being conducive for transmission through a water medium. The one or more electronic devices also include a second wireless transceiver configured to transmit second wireless signals through water. The electronic devices detect whether at least one electronic device has been submerged, and in response to submersion, transmits at least some communication types from the second wireless transceiver rather than the second wireless transceiver. 1. An underwater communication system , comprising:a first wireless transceiver configured to transmit first wireless signals through an air medium, wherein the first wireless signals are not conducive for transmission through water;a second wireless transceiver configured to transmit second wireless signals through water, wherein the second wireless signals comprise audio-based signals conducive for transmission through water;memory storing instructions; and detect that an electronic device having the first wireless transceiver has been submerged; and', 'transmit at least some communication types from the second wireless transceiver based at least in part on the detection that the electronic device has been submerged., 'a processor configured to execute the instructions to cause the processor to2. The underwater communication system of claim 1 , wherein the audio-based signals comprise ultrasonic or infrasonic signals.3. The underwater communication system of claim 1 , wherein the second wireless transceiver is located inside the electronic device.4. The underwater communication system of claim 1 , comprising a second electronic device different than the electronic device claim 1 , wherein the second electronic device comprises the second wireless ...

PARAMETRIC TRANSDUCERS AND RELATED METHODS

An ultrasonic emitter comprises a support member operable to support an ultrasonic emittive material. The support member includes a plurality of support ribs. The ultrasonic emittive material is coupled to upper portions of the support ribs so as to be carried by the support member. A protective screen has a plurality of apertures formed therein, the protective screen being in contact with the ultrasonic emittive material atop the support ribs such that the spacing between the ultrasonic emittive material and the protective screen is substantially zero atop the support ribs. 1. An ultrasonic emitter , comprising:a support member operable to support an ultrasonic emittive material, the support member including a plurality of support ribs;an ultrasonic emittive material coupled to upper portions of the support ribs so as to be carried by the support member; anda protective screen having a plurality of apertures formed therein, the protective screen being in contact with the ultrasonic emittive material atop the support ribs such that the spacing between the ultrasonic emittive material and the protective screen is substantially zero atop the support ribs.2. The emitter of claim 1 , wherein each support rib is spaced from adjacent support ribs and extends longitudinally along the support member.3. The emitter of claim 1 , wherein the upper portions of the support ribs collectively define a support matrix having a relative degree of flatness claim 1 , and wherein a bottom plane of the protective screen in contact with the upper portions of the support ribs has a relative degree of flatness that is the same as or more flat than the support matrix.4. The emitter of claim 1 , wherein the protective screen is bonded to the ultrasonic emittive material atop the support ribs.5. The emitter of claim 1 , wherein the protective screen is mechanically held in contact with the ultrasonic emittive material atop the supports.6. The emitter of claim 1 , wherein at least some of the ...

ULTRASONIC DIAGNOSTIC APPARATUS, PROBE HEAD, ULTRASONIC PROBE, ELECTRONIC MACHINE, AND ULTRASONIC DIAGNOSTIC APPARATUS

An ultrasonic measurement apparatus has an ultrasonic transducer device including an ultrasonic element array, a first through n-th first end-side terminal XA to XAn provided to a first end side, and a first through n-th second end-side terminal XB to XBn provided to a second end side opposing the first end side; a first transmission circuit outputting first drive signals VTA to VTAn to the first through n-th first end-side terminals XA to XAn; and a second transmission circuit outputting second drive signals VTB to VTBn to the first through n-th second end-side terminals XB to XBn. 1. An ultrasonic measurement apparatus comprising:an ultrasonic transducer device including an ultrasonic element array, a first first end-side terminal through an n-th (where n is an integer two or greater) first end-side terminal provided to a first end side, and a first second end-side terminal through an n-th second end-side terminal provided to a second end side opposing the first end side;a first transmission circuit configured to output first drive signals to the first first end-side terminal through the n-th first end-side terminal; anda second transmission circuit configured to output second drive signals to the first second end-side terminal through the n-th second end-side terminal,an amplitude of at least one of the first drive signals and the second drive signals being variably set.2. The ultrasonic measurement apparatus as set forth in claim 1 , whereina set position of a scan plane, which is a plane running along a direction of scanning of a beam of ultrasonic waves emitted from the ultrasonic transducer device, is changed by changing of a difference between an amplitude of the first drive signals and an amplitude of the second drive signals by at least one of the first transmission circuit and the second transmission circuit.3. The ultrasonic measurement apparatus according to claim 2 , whereinthe at least one of the first transmission circuit and the second transmission ...

Method and apparatus for an ultrasonic emitter system floor audio unit

Methods and systems are provided for audio devices with enhanced directional operations. In a system that includes one or more audio output components, positioning information associated with at least a part of a user's body maybe determined, the positioning information including at least orientation related information. The one or more audio output components may be controlled based on the determined positioning information, with the determined positioning information corresponding to a positional nature of the user within a three-dimensional space around the user, and where the controlling includes providing a three-dimensional audio environment according to the user.

Array system for segmenting signals and generating a complex waveform at a focal point using recombination of segmented signals

An apparatus and methods are provided to realize an input waveform using wavelet processing and reconstruction via separated antenna array systems having different beam paths and different frequency components which can include phased array transmitters to recreate the input waveform. One aspect of the invention can include a wavelet function used for the examples shown herein which includes a first and second moments of a statistical function, i.e. the mean and variance used with an inverse wavelet to create rectangular pulses that lend themselves to use in the invention herein. Other embodiments of the invention can use other input waveform separation functions paired with signal separation and recombination at a focus point. A selected function can be matched to its application associated with avoidance of sending the input waveform along a single beam path, a desired a focus point, and separation of an input signal.

Body area network facilitated authentication or payment authorization

Disclosed are examples of a method, a wearable device and a system enabling authentication of a user of a payment account or completion of a purchase transaction via signals generated by the wearable device. A process may include a wearable device generating a modulated signal using an encryption algorithm. The modulated signal may contain authentication information related to the wearable device including a cryptographic authentication message. The modulated signal is output to a biological medium interface of the wearable device that is coupled to a biological medium of a wearer of the wearable device. The biological medium is operable to conduct the modulated signal. A receiving device processes including decrypting and demodulating the modulated signal received from the biological medium. Using the demodulated signal, the authentication information transmitted from the wearable device is obtained. Based on the obtained authentication information, a transaction may be authorized, or a user authenticated.

PROCESS FOR MONOVALENT ONE-TO-ONE EXTRACTION OF KEYS FROM THE PROPAGATION CHANNEL

A method for generating an encryption key is provided to encrypt data exchanged between a first user and a second user, wherein the key is determined from measurements of the transmission channel. 1. A method for univalent and unequivocal extraction of keys from a propagation channel , said keys being intended to protect data exchanged between a first user A and a second user B , a user including one or more emitters and one or more receivers , the data being transmitted via the propagation channel , wherein it comprises at least the following steps:a) Measuring, by way of the receiver(s) of the first and of the second user A, B, signals S coming from each emitter of the other user, measuring the parameters of the corresponding propagation channel, and then estimating the corresponding complex impulse responses of the propagation channel or corresponding complex frequency responses of the propagation channel,b) Selecting, in a univalent manner, for each user A, B, a set of complex channel coefficients resulting from the estimations of the complex impulse responses of the propagation channel or of the complex frequency responses of the propagation channel, and retaining the coefficients that exhibit a cross-correlation lower than an adjustable predetermined threshold value,c) Quantifying and formatting, for each user, the selected complex channel coefficients by applying a geometrical mesh of the complex plane in which the channel coefficients take their value, numbering the complex coefficients according to the mesh to which they belong, and error correction techniques to said numbering,d) Using, in a univalent and unequivocal manner, for each user, digital data resulting from said quantification and from said formatting in the form of secret keys so as to encrypt the string of transmitted data.2. The method as claimed in claim 1 , wherein it uses a communication mode between users claim 1 , a temporal duplex mode employing one and the same carrier frequency for the ...

SUBSEA OILFIELD COMMUNICATION SYSTEM

A method for transmitting signals in a subsea environment includes determining that a quality of an acoustic signal is below a threshold. The acoustic signal travels from a first device, through water in the subsea environment, to a second device. A parameter of the first device, the second device, or both is then adjusted to improve the quality of the acoustic signal when the quality of the acoustic signal is below the threshold. 1. A method for transmitting signals in a subsea environment , comprising:determining that a quality of an acoustic signal is below a threshold, wherein the acoustic signal travels from a first device, through water in the subsea environment, to a second device; andadjusting a parameter of the first device, the second device, or both to improve the quality of the acoustic signal when the quality of the acoustic signal is below the threshold.2. The method of claim 1 , wherein determining that the quality of the acoustic signal is below the threshold comprises scanning the subsea environment to detect an acoustic interference in a transmission path between the first device and the second device.3. The method of claim 2 , wherein scanning the subsea environment comprises scanning a half-sphere horizon between the first device and the second device.4. The method of claim 1 , wherein adjusting the parameter of the first device claim 1 , the second device claim 1 , or both comprises adjusting a position of the first device claim 1 , the second device claim 1 , or both.5. The method of claim 1 , wherein adjusting the parameter of the first device claim 1 , the second device claim 1 , or both comprises adjusting a velocity or an acceleration of the first device claim 1 , the second device claim 1 , or both.6. The method of claim 1 , wherein adjusting the parameter of the first device claim 1 , the second device claim 1 , or both comprises adjusting slowing or shutting down noise-making equipment on or proximate to first device claim 1 , the second ...

DISTANCE MEASUREMENT

A method for determining a distance between a device and an object, the method comprising: emitting an acoustic reference signal from a speaker of the device; receiving an acoustic input signal at a microphone of the device, the acoustic input signal including a measurement portion including a reflection of the acoustic reference signal off the object; cross correlating at least the measurement portion with the emitted acoustic reference signal to provide a cross correlated signal; receiving information relating to the object; extracting a section of the cross correlated signal corresponding to reflection of the acoustic reference signal by the object, based on the received information; analysing the extracted section of the cross correlated signal to determine a time of flight between emitting the acoustic reference signal and receiving the reflection; and determining the distance between the device and the object based on the determined time of flight and known characteristics of the acoustic reference signal. A chipset for performing the method is also disclosed. 1. A method of determining a distance between a device and an object , the method comprising:emitting an acoustic reference signal from a speaker of the device;receiving an acoustic input signal at a microphone of the device, the acoustic input signal including a measurement portion including a reflection of the acoustic reference signal off the object;cross correlating at least the measurement portion with the emitted acoustic reference signal to provide a cross correlated signal;receiving information relating to the object;extracting a section of the signal corresponding to reflection of the acoustic reference signal by the object, based on the received information;analysing the extracted section of the cross correlated signal to determine a time of flight between emitting the acoustic reference signal and receiving the reflection; anddetermining the distance between the device and the object based on ...

Ultrasound diagnostic apparatus and non-transitory storage medium

According to one embodiment, an ultrasound diagnostic apparatus includes a transmitter/receiver and processing circuitry. The transmitter/receiver sequentially transmits a first transmission beam group and a second transmission beam group and receives at least one reception beam for each transmission beam, via an ultrasound probe having a plurality of transducers arranged along an azimuth direction and an elevation direction. The processing circuitry combines a first reception beam based on a first transmission beam included in the first transmission beam group and a second reception beam based on a second transmission beam included in the second transmission beam group. Transmission beams that are adjacent to each other in the azimuth direction or the elevation direction belong to transmission beam groups that are different from each other.

CONCEPTS AND METHODS FOR UNDERWATER COMMUNICATION WITH EQUIPMENT SUCH AS AUTOMATIC SWIMMING POOL CLEANERS

Techniques and methods for wirelessly communicating underwater with equipment such as, but not necessarily limited to, automatic swimming pool cleaners (APCs) are detailed. Such communication avoids any need for conventional wired communication with the APCs. In some cases sounds may be used to communicate, and such sounds may travel through both air and water. 1. An automatic swimming pool cleaner comprising:a housing, a communication sensor, and a controller,wherein the automatic swimming pool cleaner is configured to be at least partially submerged within water of a swimming pool or spa,wherein the communication sensor is configured to receive a sound signal while the automatic swimming pool is at least partially submerged, and receive an electrical signal from the communication sensor, the electrical signal comprising at least one characteristic;', 'determine a control response for the automatic swimming pool cleaner based on the at least one characteristic; and', 'control the automatic swimming pool cleaner pursuant to the determined control response., 'wherein the controller is configured to2. The automatic swimming pool cleaner of claim 1 , wherein the communication sensor comprises at least one of a microphone or an ultrasonic transducer.3. The automatic swimming pool cleaner of claim 1 , wherein the communication sensor is configured to receive at least one of an audible sound or an ultrasonic sound as the sound signal.4. The automatic swimming pool cleaner of claim 1 , wherein the communication sensor is within the housing.5. The automatic swimming pool cleaner of claim 4 , wherein the communication sensor is on a printed circuit board within a motor block of the housing.6. The automatic swimming pool cleaner of claim 1 , further comprising a sound generator that is configured to generate a sound signal having at least one characteristic.7. The automatic swimming pool cleaner of claim 1 , wherein the communication sensor is a first sensor configured to ...

Cable with Circuitry for Communicating Performance Information

A cable with circuitry that enables the cable to communicate data in one of at least two different signal modes of operation is presented. In a first signal mode, the cable enables data communication between the circuitry and either a source device or a sink device. The first signal mode can be used either to communicate properties of the cable itself or of a signal passing through the cable to either the source device or the sink device. In a second signal mode, the cable enables data communication between the source device and the sink device. The second signal mode can be used to communicate data in accordance with a predetermined protocol.

System for Providing Power to a Stationary Underwater Control Station

Ultrasonic transmitting elements in an electroacoustical transceiver transmit acoustic energy to an electroacoustical transponder, which includes ultrasonic receiving elements to convert the acoustic energy into electrical power for the purposes of powering one or more sensors that are electrically coupled to the electroacoustical transponder. The electroacoustical transponder transmits data collected by the sensor(s) back to the electroacoustical transceiver wirelessly, such as through impedance modulation or electromagnetic waves. A feedback control loop can be used to adjust system parameters so that the electroacoustical transponder operates at an impedance minimum. An implementation of the system can be used to collect data in a vehicle, such as the tire air pressure. Another implementation of the system can be used to collect data in remote locations, such as in pipes, enclosures, in wells, or in bodies of water. 1. A system for providing power to a stationary underwater control station , the system comprising:an autonomous underwater vehicle having a retractable probe; a housing;', 'an ultrasound transmitter;', 'a first electromechanical mating interface;', 'a signal generator; and', 'an amplifier;, 'an ultrasound recharging unit disposed distally on the retractable probe, the ultrasound recharging unit comprising an ultrasound receiver; and', 'a second electromechanical mating interface,, 'a stationary control unit deployed in a body of water, the stationary control unit comprisingwherein signals are generated by said signal generator and amplified by said amplifier, said amplified signals are transmitted over said ultrasound transmitter, said ultrasound transmitter generating acoustic energy that passes from said ultrasound transmitter to said ultrasound receiver via said first and second electromechanical mating interfaces.2. The system of claim 1 , wherein said first electromechanical mating interface is pressure balanced and oil-filled.3. The system of ...

Resident ROV Signal Distribution Hub

A subsea umbilical and signal distribution hub (SDH) comprises a signal source, the signal comprising power and/or data; one or more signal carriers operatively in communication with the signal source; and a subsea signal distribution hub, which comprises a signal input connector operatively in communication with the signal carrier and a signal output connector operatively in communication with the signal input connector. Signals may be provided by deploying a device such as remotely operated vehicle (ROV) subsea; deploying a riser tension and mounting system (RTMS) with a resident ROV (RROV) installed; deploying a jumper from the RTMS to the RROV; operatively connecting the jumper to a signal distribution hub with such as via an ROV; and once in place, switching the signal on at the signal distribution hub. 1. A subsea umbilical and signal distribution hub (SDH) , comprising:a. a signal source;b. a signal carrier operatively in communication with the signal source; and i. a signal input connector operatively in communication with the signal carrier; and', 'ii. a signal output connector operatively in communication with the signal input connector., 'c. a subsea signal distribution hub anchored subsea, the subsea signal distribution hub comprising2. The subsea umbilical and signal distribution hub (SDH) of claim 1 , wherein the signal output connector further comprises a plurality of signal output connectors claim 1 , each signal output connector of the plurality of signal output connectors operatively in communication with the signal input connector.3. The subsea umbilical and signal distribution hub (SDH) of claim 1 , wherein the signal source comprises a power signal source.4. The subsea umbilical and signal distribution hub (SDH) of claim 3 , wherein the power signal source comprises a platform based power source claim 3 , a shore-based power source claim 3 , or a buoy-based power source.5. The subsea umbilical and signal distribution hub (SDH) of claim 4 , ...

UNDERWATER ACOUSTIC ARRAY, COMMUNICATION AND LOCATION SYSTEM

An underwater communication system comprises a plurality of network nodes for sending and receiving ultrasonic energy through water. In accordance with one aspect, each of the network nodes includes an array of two or more ultrasonic transducers positioned so as to define a line segment. Each node also includes a transceiver adapted to generate a code element, generate a data element, generate a modulation element, and combine the code element, the data element and the modulation element into an analog waveform. The system is further adapted to transmit the analog waveform through each of the ultrasonic transducers and receive the analog wave-form generated by at least one of the network nodes. 1. An underwater communication and location device , comprising:an array of at least two ultrasonic transducers having a beam pattern angle of at least 2π steradians; receive, with the array of transducers, an analog waveform generated by a transmitter;', 'determine location information of the transmitter; and', 'interpret a data element transmitted by the transmitter., 'a receiver arranged to2. The underwater communication and location device of claim 1 , wherein the transmitter is adapted to:generate a pseudo-random code element;generate the data element;generate a modulation element;combine the pseudo-random code element, the data element and the modulation element into the analog waveform; andtransmit, to the receiver, the analog waveform through one or more ultrasonic transducers.3. The underwater communication and location device of claim 2 , wherein generating a data element comprises:applying an error-correcting code to user text or other information to generate an error-corrected data stream;interleaving the error-corrected data stream, in order to correct burst errors; andpre-pending sync data to the error-corrected data stream.4. The underwater communication and location device of claim 1 , wherein the transducers are substantially spherical or cylindrical in shape ...

Data sending/receiving method and data transmission system over sound waves

A sound wave-based data sending method, apparatus, and electronic device, a sound wave-based data receiving method, apparatus, and electronic device, and a sound wave-based data transmission system. The sound wave-based data sending method includes: obtaining to-be-sent data; obtaining a sound wave frequency sequence corresponding to the to-be-sent data according to a preset sound wave frequency mapping table; generating a filtered sound wave signal sequence according to the sound wave frequency sequence and a preset sending duration, the sending duration being sending duration of a sound wave signal corresponding to a single character; and sending a sound wave signal corresponding to the to-be-sent data according to the filtered sound wave signal sequence. The method, apparatus, and electronic device of the present application provide an improved communication distance and identification accuracy.

Software-Defined Implantable Ultrasonic Device for Use in the Internet of Medical Things

Implantable and wearable devices and system for transmitting signals ultrasonically through biological tissue are implemented based on an Internet of Medical Things (IoMT) platform software and hardware architecture. The devices are size-, energy-, and resource-constrained and implement ultrasonic communication protocols and communicate with each other through ultrasound. 1. An ultrasound communication device for transmitting signals ultrasonically within a network of implanted and/or worn medical devices , comprising:a communication unit comprising an ultrasonic transceiver to transmit and receive ultrasonic signals through biological tissue to and from other devices in the network of devices; anda processing unit in communication with the communication unit to receive signals from and transmit signals to the communication unit, the processing unit including a processor and memory, the processor operative to reconfigure in real time one or more upper layer protocols in a protocol stack and a reconfigurable logic device operative at a physical layer in the protocol stack.2. The device of claim 1 , wherein the processor is operative to reconfigure one or more of an application layer claim 1 , a link layer claim 1 , a media access control layer claim 1 , and a network transport layer.3. The device of claim 1 , wherein the reconfigurable logic device is operative to control transmitter and receiver chains to transmit and receive ultrasonic transmissions.4. The device of claim 1 , wherein the reconfigurable logic device includes a register module operative to store and route configuration parameters determined by the processor claim 1 , the configuration parameters including one or more of a spreading code claim 1 , a spreading code length claim 1 , a time-hopping frame length claim 1 , a time-hopping sequence claim 1 , a packet payload size claim 1 , or a length of a preamble.5. The device of claim 1 , wherein the reconfigurable logic device includes a configurable ...

SYSTEM AND A METHOD FOR ESTABLISHING DATA COMMUNICATION BETWEEN DEVICES USING AUDIO FREQUENCY

The various embodiments of the present invention disclose a system and method for initiating communication between different devices using audio frequency. The invention enables buzzers to generate monotone or limited tones for communication and data transmission. The first electronic device includes a frequency generator, an audio driver library, the buzzer or speaker, and a transmitter & the second electronic includes has an audio receiver mic, audio driver library, frequency receiver. The transmitter generates a communication request from a first electronic device to second electronic device. Further, the first electronic device and the second electronic device is installed with a buzzer application which when executed on the processor, causes the processor to enable communication between the first electronic device and the second electronic device by generating audible frequency using the buzzer/speaker. 1. A system for enabling/establishing communication between a plurality of devices through audio frequencies , the system comprising:a first electronic device, wherein the first electronic device comprises a frequency generator engine, an audio driver library module, a buzzer and/or a speaker module, a transmitter module and a processor module;a second electronic device, wherein the second electronic device comprises a transceiver module; and,a buzzer application module, wherein the buzzer application module is configured to run on the first electronic device and the second electronic device, and wherein the buzzer application module is run on a processor to generate tone for establishing data communication between the first electronic device and the second electronic device.2. The system according to claim 1 , wherein the buzzer application module is configured to be executed on the processor claim 1 , and wherein the execution of the buzzer application module causes the processor to enable communication between the first electronic device and the second ...

ELECTRONIC APPARATUS

Provided is an electronic apparatus including a display, a frame supporting the display, and at least one actuator disposed at a rear side of the frame, the display vibrates based on driving of the at least one actuator to emit an acoustic signal to an outside, the frame includes a first portion and the and a second portion surrounding at least a part of the first portion, and the first portion and the second portion are formed of different materials. Various other embodiments are possible. 1. An electronic apparatus comprising:a display;a frame coupled to the display; andat least one actuator disposed at a rear side of the frame,wherein the display is configured to emit an acoustic signal by vibrating based on driving of the at least one actuator,wherein the frame comprises a first portion and a second portion surrounding at least a part of the first portion, andwherein the first portion and the second portion are formed of different materials.2. The electronic apparatus of claim 1 , wherein the first portion and the second portion are formed of materials having at least different densities or different stiffnesses.3. The electronic apparatus of claim 1 , wherein the first portion and the second portion are formed to have a predetermined step difference claim 1 , and wherein the first portion is thinner than the second portion.4. The electronic apparatus of claim 1 , wherein the second portion comprises at least one opening.5. The electronic apparatus of claim 1 , wherein the second portion comprises a shock absorbing structure that buffers a vibration generated based on the driving of the at least one actuator.6. The electronic apparatus of claim 1 , wherein at least one of the first portion or the second portion comprises a corrugation structure having a plurality of ridges and valleys.7. The electronic apparatus of claim 1 , wherein the at least one actuator comprises:a magnetic circuit device configured to generate a magnetic force based on an electrical signal ...

COMMUNICATION MODULE

A communication module includes: a first substrate having a first surface; a second substrate having a second surface, the second surface facing the first surface across an air gap; a first filter located on the first surface, a passband of the first filter being either one of a transmit band and a receive band of a first band, the first band being a frequency division duplex band; and a second filter located on the second surface, at least a part of the second filter overlapping with at least a part of the first filter in a stacking direction in which the first substrate and the second substrate are stacked, a passband of the second filter being at least one of a transmit band and a receive band of a second band, the second band differing from the first band. 1. A communication module comprising:a first substrate having a first surface;a second substrate having a second surface, the second surface facing the first surface across an air gap;a first filter located on the first surface, a passband of the first filter being either one of a transmit band and a receive band of a first band, the first band being a frequency division duplex band; anda second filter located on the second surface, at least a part of the second filter overlapping with at least a part of the first filter in a stacking direction in which the first substrate and the second substrate are stacked, a passband of the second filter being at least one of a transmit band and a receive band of a second band, the second band differing from the first band.2. The communication module according to claim 1 , whereinthe first filter and the second filter are not used for communication at the same time.3. The communication module according to claim 1 , whereinat least a part of a ground terminal of the first filter and at least a part of a ground terminal of the second filter are electrically connected on at least one of the first surface and the second surface.4. The communication module according to claim 1 ...

System and Method for Communication with Time Distortion

A system and method includes a receiver configured to receive a communication signal from a transmitter. A motion determining unit connected with the receiver is configured to provide information about a motion of the receiver relative to the transmitter. An adaptive equalizer is connected with the receiver, the adaptive equalizer is configured to use the information about the motion to undo effects of time variation in the communication signal. 1. A method for communicating information from a transmitter to a receiver , the method comprising:receiving, from the transmitter, via at least one channel, a communication signal comprising a succession of symbols;updating a state-space model of relative transmitter and receiver position and motion, using a recursive filter;estimating arrival times for each of the symbols of the communication signal based on the state-space model, andcompensate time distortions in the communication signal based at least in part on the estimated arrival times.2. The method according to claim 1 , wherein the communication signal is an acoustic signal.3. The method according to claim 1 , wherein the succession of signals is uniformly spaced in time.4. The method according to claim 1 , wherein the communication signal is distorted due to effects of at least one of dispersion claim 1 , noise and fading.5. The method according to claim 1 , wherein the communication signal is distorted due to effects of at least one of delay claim 1 , time dilation and time compression.6. The method according to claim 1 , wherein the recursive filter is selected from a group including a Kalman filter claim 1 , an extended Kalman filter and an unscented Kalman filter.7. The method according to claim 1 , wherein the at least one channel claim 1 , further comprising modulating at least one of amplitude and phase of at least one carrier in at least one channel.8. The method according to claim 1 , wherein the at least one channel claim 1 , further comprising ...

Audio Based Service Set Identifier

A first computing device is configured to broadcast a first audio token comprising a first identifier over a first audio frequency channel, activate a first microphone component, and receive a first audio response token generated by a second computing device via the first audio frequency channel. A second computing device is configured to receive an input indicating a request to receive data, activate the second microphone component, receive the first audio token over the first audio frequency channel, receive one or more other audio tokens over one or more other audio frequency channels, determine that the received first audio token comprises a valid audio token, restrict the range of received audio inputs to comprise only the first audio frequency channel, generate the first audio response token, and communicate the first audio response token to the first computing device via the first audio frequency channel. 1. A system to establish an audio communication channel between a broadcasting computing device and a user computing device , comprising: a first microphone component;', 'a first storage device; and', broadcast a first audio token comprising a first user computing device identifier over a first audio frequency channel;', 'activate the first microphone component to listen for audio inputs over the first audio frequency channel;', 'receive a first audio response token generated by a second computing device via the first audio frequency channel;, 'a first processor communicatively coupled to the first storage device, wherein the first processor executes application code instructions that are stored in the first storage device to cause the first computing device to], 'a first computing device comprising a second microphone component;', 'a second storage device; and', receive an input indicating a request to receive data;', 'activate the second microphone component to receive audio inputs via two or more audio frequency channels comprising at least the first ...

MODULATION APPARATUS, DEMODULATION APPARATUS, AUDIO TRANSMISSION SYSTEM, PROGRAM, AND DEMODULATION METHOD

A problem is to increase possibility of extracting data from sound in a system which transmits data using the sound as a transmission medium. Frames are transmitted while shifting the transmission timing among a plurality of frequency bands, whereby tolerance for multipath fading, noise mixing, or the like is obtained and improvement of a substantial transmission rate can be expected compared to a case where one frame is transmitted using only one frequency band. When selecting blocks forming a frame, since a block is selected under a condition that a time period necessary for collecting sound, on which the blocks to be selected are superimposed, becomes shorter, even if a phenomenon, in which a substantial rate of data transmission decreases, occurs, it becomes possible to suppress a decrease in rate. 1. A modulation apparatus comprising:a delay unit, configured to delay a transmission start timing of a frame corresponding to one unit of transmission data by a predetermined time period; anda modulated signal generation unit, configured to generate a modulated signal by modulating a carrier wave in a frequency band which is different depending on the transmission start timing by using the frame whose transmission start timing is delayed by the delay unit.2. The modulation apparatus according to claim 1 , further comprising:a sound emission unit, configured to emit sound according to the modulated signal generated by the modulated signal generation unit.3. A demodulation apparatus comprising:a separation unit, configured to use a frame corresponding to one unit of transmission data and having a transmission start timing delayed by a predetermined time period to separate an audio signal of sound emitted according to a modulated signal generated by modulating a carrier wave in a frequency band which is different depending on the transmission start timing into signal components belonging to the respective frequency bands; anda frame generation unit, configured to ...

GENERATION OF ULTRA-HIGH FREQUENCY SOUND

An apparatus for generating ultra-high frequency sound waves with frequencies between (1 GHz-10 GHz) is proposed. The apparatus comprises a magnetic phonon-gain medium configured to generate high frequency non-equilibrium phonons by non-equilibrium magnons having the magnon velocity exceeding the sound velocity in the magnetic phonon-gain medium. The non-equilibrium magnons having the magnon velocity exceeding the sound velocity in the magnetic phonon-gain medium are generated by injected non-equilibrium electrons having spin opposite to the direction of magnetization of the magnetic phonon-gain medium. The apparatus further comprises a means for outputting the ultra-high frequency non-equilibrium phonons. 1. A method of generation of ultra-high frequency sound waves comprising:(A) injecting non-equilibrium electrons into a magnetic phonon-gain medium; said injected non-equilibrium electrons having the spin orientation opposite to the direction of magnetization of said magnetic phonon-gain medium;(B) generating non-equilibrium magnons in said magnetic phonon-gain medium; wherein said non-equilibrium magnons are generated in said magnetic phonon-gain medium while said non-equilibrium electrons propagate in said magnetic phonon-gain medium and change the spin orientation from the direction opposite to the direction of magnetization of said magnetic phonon-gain medium to the direction along to the direction of magnetization of said magnetic phonon-gain medium;and(C) generating ultra-high frequency non-equilibrium phonons in said magnetic phonon-gain medium; wherein said ultra-high frequency non-equilibrium phonons are generated in said magnetic phonon-gain medium by non-equilibrium magnons having the magnon velocity exceeding the sound velocity in said magnetic phonon-gain medium; said non-equilibrium magnons having the magnon velocity exceeding the sound velocity in said magnetic phonon-gain medium being generated by said injected non-equilibrium electrons having spin ...

ENCODING STRATEGY SELECTION FOR DATA TRANSFER USING AUDIO TRANSMISSIONS

Methods and systems for improved transmission and receipt of audio transmissions containing data encoded according to different protocols are presented. In one embodiment, a method is provided that includes receiving a digital data bistream containing data for transmission using an audio transmission. The digital data bitstream may be divided into a plurality of symbols (e.g., according to a type of encoding protocol to be used). An analog audio signal may be generated that encodes the plurality of symbols according to an encoding protocol (e.g., a PSK protocol and/or a DPSK protocol). The analog audio signal may be added to the audio transmission and the audio transmission may be transmitted using an audio transmitter. 1. A method comprising:receiving a digital data bitstream for a first audio transmission generated to transmit data;dividing the digital data bitstream into a plurality of symbols;generating a first analog audio signal that encodes the plurality of symbols as phase differences according to a differential phase-shift keying (DPSK) protocol; andtransmitting, using an audio transmitter, a first audio transmission containing the first analog audio signal.2. The method of claim 1 , wherein the DPSK protocol is a Quad-DPSK (QDPSK) protocol and each of the plurality of symbols is two bits in length.3. The method of claim 1 , wherein the DPSK protocol is an 8DPSK protocol and each of the plurality of symbols is three bits in length.4. The method of claim 1 , wherein the audio transmission further includes a predetermined portion.5. The method of claim 4 , wherein the predetermined portion is encoded according to a phase-shift keying protocol.6. The method of claim 4 , wherein the predetermined portion indicates that the first analog audio signal is encoded using the DPSK protocol.7. The method of claim 1 , further comprising:receiving a second audio transmission containing a second analog audio signal; anddecoding, according to the DPSK protocol, the second ...

CONTROLLING VIBRATION OUTPUT FROM A COMPUTING DEVICE

Systems, apparatuses, and methods are described for controlling vibrations output by one or more computing devices. A plurality of computing devices may form an ad hoc group using vibration signals. A computing device may suspend generation of a tactile vibration and/or sound as a notification of a received communication or other event. 1. A method comprising:detecting, by a computing device, a vibration;determining that the detected vibration originated from a second computing device;forming, based on determining that the vibration originated from the second computing device, a group comprising the computing device and the second computing device; andcontrolling, based on forming the group, vibration output by the computing device.2. The method of claim 1 , further comprising:detecting, by the computing device, an event; andwherein the controlling vibration output comprises suspending, for a suspension time period, output of a vibration associated with the event.3. The method of claim 2 , further comprising:determining, at a first time, that a notification time period following the suspension time period coincides with the first time; andoutputting, based on determining that the notification time period following the suspension time period coincides with the first time, the vibration associated with the event.4. The method of claim 1 , further comprising:detecting a second vibration generated by another computing device; andoutputting, by the computing device and based on the detected second vibration, a visual notification indicating that the second vibration was not output by the computing device.5. The method of claim 1 , further comprising outputting claim 1 , by the computing device claim 1 , a vibration and a visual notification claim 1 , wherein the visual notification indicates that the output vibration was output by the computing device.6. The method of claim 1 , further comprising:determining, based on a vibration pattern of the detected vibration, a ...

A METHOD AND SYSTEM FOR AUTHENTICATING A DEVICE

The present invention relates to a method for authenticating a device with a wireless access point. The method includes receiving an audio signal at the device via a microphone; processing the audio signal to extract a code; using the code to authenticate the device, at least in part, with the wireless access point; and in response to the authentication, providing access to one or more network Services to the device via the wireless access point. A system and software are also disclosed. 1. A method for authenticating a device with a wireless access point , including:receiving an audio signal at the device via a microphone;processing the audio signal to extract a code;using the code to authenticate the device, at least in part, with the wireless access point; andin response to the authentication, providing access to one or more network services to the device via the wireless access point.2. A method as claimed in claim 1 , wherein the audio signal is received from a speaker at a second device.3. A method as claimed in claim 2 , wherein the second device is a user device.4. A method as claimed in claim 2 , wherein the second device is actuated by a user of the second device to generate the audio signal at the speaker.5. A method as claimed in claim 2 , wherein the second device is triggered by receiving an audio signal from the first device to generate the audio signal at the speaker.6. A method as claimed in claim 1 , wherein the code include WiFi credentials for the wireless access point.7. A method as claimed in claim 6 , wherein the WiFi credentials includes the SSID for the wireless access point claim 6 , and the password for the wireless access point.8. A method as claimed in claim 1 , wherein the network services include Internet services.9. A method as claimed in claim 1 , wherein the device is an IoT device.10. A method as claimed in claim 1 , wherein the device is not a general purpose computing device.11. A method as claimed in claim 1 , wherein the code ...

PIEZOELECTRIC MODULE

Provided is a piezoelectric module capable of attempting further miniaturization. In the piezoelectric module, a resonance point is excluded from a frequency band of a transmitted signal to avoid shortening of a signal transmission distance, thereby attempting improvement in stability of communication. In addition, since a resonance space is not provided, further miniaturization may be easily attempted. 1a piezoelectric vibration plate including a piezoelectric element and a vibration plate having shapes of perfect discs and overlapping each other;a pair of terminals provided on the piezoelectric vibration plate and electrically connected to the piezoelectric element;a transmission member including a cloth-like member and adhesive materials formed on both surfaces of the cloth-like member; andan oscillating member to which the piezoelectric vibration plate is attached in a closely adhering state through the transmission member,wherein a resonance point of the piezoelectric module is not present within a frequency range of the signal.. A piezoelectric module for transmitting an acoustic signal, comprising: This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2015-156063, filed on Aug. 6, 2015, the entire contents of which are incorporated herein by reference.The present disclosure relates to a piezoelectric module that transmits an acoustic signal.A communication method of transmitting a signal to a terminal using air as a medium has been known. This method uses an existing speaker corresponding to a pronunciation component and a microphone installed in a terminal such as a mobile phone (Japanese Patent No. 4295781 and the like).Recently, transmission of data of program information from a speaker of a television, and transmission of data by a distance of about several meters from a small health care device have been under consideration as applications of the communication method.Incidentally, a general speaker ...

COMMUNICATION SETTING SYSTEM AND METHOD FOR IOT DEVICE USING MOBILE COMMUNICATION TERMINAL

As a communication setting system and method for an Internet of things (IoT) device using a mobile communication terminal, the present invention relates to: a system comprising a mobile communication terminal for outputting a setting information sound wave signal in which access setting information for network access of various IoT devices is synthesized, and an IoT device which receives the setting information sound wave signal outputted from the mobile communication terminal so as to set network access information on the basis of the access setting information; and a method for setting a network access of an IoT device by using a mobile communication terminal. According to the present invention as configured above, it is possible to automatically set a network access of an IoT device by simply using a mobile communication terminal even without physically connecting separate equipment for setting a network access to various IoT devices. 1. A mobile communication terminal for communication setting of an Internet of things (IoT) device , the mobile communication terminal comprising:an IoT communication setting unit which obtains access setting information for a network that can be accessed by an IoT device and generates a setting information sound wave signal including the access setting information so that a communication setting module installed in the IoT device can set network access information of the IoT device; anda speaker which outputs the setting information sound wave signal generated by the IoT communication setting unit,wherein the IoT device comprises a communication medium necessary for access to a network, and network access information of the communication medium of the IoT device is set automatically by the communication setting module based on the setting information sound wave signal output from the mobile communication terminal.2. The mobile communication terminal of claim 1 , wherein the IoT communication setting unit comprises:a data conversion ...

Interaction Methods and Systems

The present application provides an interaction method and system, and relates to the field of information interaction. The method comprises: in response to contact between a user body and an object, receiving a wave signal that is sent by the object and is transmitted by using a medium comprising at least a part of the user body. The system comprises: a receiving apparatus, configured to: in response to contact between a user body and an object, receive a wave signal that is sent by the object and is transmitted by using a medium comprising at least a part of the user body. The interaction method and system can help a user to naturally and efficiently complete an information interaction process, simplify an interaction process, and improve the interaction efficiency.

Parameter loader for ultrasound probe and related apparatus and methods

Programmable ultrasound probes and methods of operation are described. The ultrasound probe may include memory storing parameter data and may also include a parameter loader which loads the parameter data into programmable circuitry of the ultrasound probe. In some instances, the ultrasound probe may include circuitry grouped into modules which may be repeatable and which may be coupled together to allow data to be exchanged between the modules.

APPARATUS AND METHOD FOR CONTROLLING IRRIGATION PROCESS BY SENDING ENCODED MESSAGES ALONG IRRIGATION CONDUIT

An irrigation system having a user interface, a master valve, at least one conduit coupling the master valve with at least one slave valve; and a communication system for wirelessly communicating operating instructions between the master valve and the at least one slave valve. The medium of the communication system, for transmitting instructions, is located along the conduit. 1. An irrigation system having:a user interface;a master valve;at least one conduit coupling the master valve with the at least one slave valve; anda communication system for wirelessly communicating operating instructions between the master valve and the at least one slave valve;wherein a medium of the communication system, for transmitting instructions, is contained with and located along the conduit which couples the master valve and the at least one slave valve with one another.2. The irrigation system according to claim 1 , wherein the communication system comprises a pressure creating device and a pressure sensing device; and the operating instructions are transmitted claim 1 , via pressure signals claim 1 , through the conduit coupling the master valve with the at least one slave valve with one another.3. The irrigation system according to claim 1 , wherein the communication system comprises an audible signal creating device and an audible signal sensing device; andthe operating instructions are transmitted, via audible signals, through the conduit coupling the master valve with the at least one slave valve with one another.4. The irrigation system according to claim 1 , wherein the communication system comprises an optical signal creating device and an optical signal sensing device; andthe operating instructions are transmitted, via optical signals, through the conduit coupling the master valve with the at least one slave valve with one another.5. The irrigation system according to claim 2 , wherein the irrigation system includes an encoding/decoding scheme that uses pressure-pulse-to- ...

METHOD FOR COMMUNICATION BETWEEN AT LEAST TWO VEHICLES TRAVELLING IN SUCCESSION, AND VEHICLE HAVING AT LEAST ONE COMMUNICATION APPARATUS

A method for communication between and/or determination of the movement of at least two vehicles travelling in succession by means of a communication arrangement , wherein the communication arrangement has at least one first communication apparatus for arrangement on a first vehicle and at least one second communication apparatus for arrangement on a second vehicle , is proposed, in which a signal is transmitted via a transmission path between the communication apparatuses , wherein a main transmission link H of the transmission path runs at least beneath the first and/or second vehicle and/or in which the determination of movement is carried out on the basis of the propagation time and/or propagation time differences. 12443232a, b, caabb. A method for communication between at least two vehicles () travelling in succession by means of a communication arrangement () , wherein the communication arrangement () has at least one first communication apparatus () for arrangement on a first vehicle () and at least one second communication apparatus () for arrangement on a second vehicle () , the method comprising:{'b': 3', '2, 'i': a, b, c', 'a, b, 'transmitting a signal via a transmission path between the communication apparatuses (), wherein a main transmission link (H) of the transmission path runs at least beneath the first and/or second vehicle ().'}232a, ba, b. The method according to claim 1 , wherein the at least first and/or second communication apparatus () have a transmission area (B) in each case claim 1 , wherein the signal is transmitted and/or received within the transmission area (B) claim 1 , at least 50% of the transmission area (B) being arranged beneath the associated vehicle ().32a, b, c. The method according to claim 1 , wherein the main transmission link (H) runs at least approximately in a longitudinal direction (L) of at least one of the vehicles ().472892a, ba, ba, b. The method according to claim 1 , wherein the signal is reflected along the main ...

FULL-DUPLEX ULTRASONIC THROUGH-WALL COMMUNICATION AND POWER DELIVERY SYSTEM WITH FREQUENCY TRACKING

A method and apparatus provide simultaneous bi-directional communications through a barrier using a pair of piezoelectric transducers. Outside-to-inside transmission of differentially encoded binary data is only sampled at the inside when a known repeated bit in a Barker sequence is transmitted in the other direction. Differentially encoded data is translated based on the absolute value of differences between each signal envelope sample and the previous signal envelope sample. Inside-to-outside data is transmitted by varying an electrical load on the inside transducer to vary the proportion of a continuous wave signal it reflects. The reflected portion of the continuous wave changes the electrical impedance of the outside transducer and this change is measured and interpreted as binary data. Two frequency selection algorithms select minimally sufficient and then optimal frequencies for power and data transmission by a frequency stepping process. 1. A method for simultaneous bi-directional communication through a metallic wall using a single pair of piezoelectric transducers , the method comprising the steps of:providing a metallic wall having an inner side and an outer side;providing coaxially aligned inside and outside piezoelectric traducers mounted on respective opposite sides of the metallic wall;communicating a differentially encoded binary command word from the outer side of the metallic wall to the inner side of the metallic wall by a first sub-process comprising the steps of:selecting a command word;translating the command word to binary bits;configuring the binary bits of the command word as part of a binary outside packet, the outside packet also comprising an incoming Barker sequence,translating the binary bits of the outside binary packet into differentially encoded bits using an algorithm comprising modulo-2 addition of each binary bit with the most recently transmitted differentially encoded bit;{'b': '25', 'applying a carrier signal () to the outer ...

SYSTEMS AND METHODS FOR PERFORMING ANALOG-TO-DIGITAL CONVERSION ACROSS MULTIPLE, SPATIALLY SEPARATED STAGES

The invention provides a signal processing system, for transferring analog signals from a probe to a remote processing unit. The system comprises a first ASIC at a probe, which is adapted to receive an analog probe signal. The first ASIC comprises an asynchronous sigma-delta modulator, wherein the asynchronous sigma-delta modulator is adapted to: receive the analog probe signal; and output a binary bit-stream. The system further comprises a second ASIC at the remote processing unit, adapted to receive the binary bit-stream. The asynchronous may further include a time gain function circuit, the first ASIC may further comprise a multiplexer, the second ASIC may further comprise a time-to-digital converter. The time to digital converter may be a pipelined time-to-digital converter. 1. A system for performing analog-to-digital conversion , the system comprising: receive an analog signal; and', 'output a binary bit-stream comprising asynchronous time-domain pulses;, 'a probe having a first ASIC, wherein the first ASIC is adapted to receive the binary bit-stream; and', 'generate a digital output from the binary bit-stream based on time-to-digital conversion; and, 'a processing unit having a second ASIC, wherein the second ASIC comprises a time-to-digital converter adapted toa data channel adapted to propagate the binary bit-stream from the first ASIC to the second ASIC, wherein the first and second ASICs are spatially separated.2. A system as claimed in claim 1 , wherein claim 1 , and wherein: [ receive the binary bit-stream; and', a coarse digital output; and', 'a coarse residue time; and, 'output], 'a coarse time-to-digital converter, wherein the coarse time-to-digital converter is adapted to, [ 'receive an incoming residue time from the previous fine, or coarse, time-to-digital converter in the series;', 'one or more fine time-to-digital converters connected in series, each adapted to, 'output an outgoing residue time to the subsequent fine time-to-digital converter in ...

SYSTEM AND METHOD FOR COMMUNICATION WITH TIME DISTORTION

A system and method includes a receiver configured to receive a communication signal from a transmitter. A motion determining unit connected with the receiver is configured to provide information about a motion of the receiver relative to the transmitter. An adaptive equalizer is connected with the transmitter, the adaptive equalizer is configured to use the information about the motion to undo effects of time variation in the communication signal. 1. A system comprising:a receiver configured to receive a communication signal from a transmitter that transmits the communication signal along a first reference time axis signal, the receiver receiving the transmitted communication signal along a second reference time axis; anda time-distortion estimation unit communicatively coupled with the receiver and configured to provide information about a relationship between the first reference time axis and a second reference time axis of the received communication signal.2. The system of claim 1 , wherein the second reference time axis comprises one or more of delay claim 1 , time dilation claim 1 , time compression claim 1 , or any combination thereof.3. The system of claim 1 , wherein the received communication signal is distorted due to effects of one or more of dispersion or noise from one or more of a channel claim 1 , the transmitter or the receiver.4. The system of claim 1 , wherein the transmitter transmits the communication signal as a sequence of transmit pulse shapes at uniformly spaced intervals of time along the first reference time axis and the receiver receives a sequence of receive pulse shapes at non-uniformly spaced intervals of time along the second reference time axis claim 1 , wherein the receive pulse shapes are different from the transmit pulse shapes based on effects of one or more of the transmitter claim 1 , a channel claim 1 , or the receiver.5. The system of claim 1 , wherein the communication signal is transmitted by the transmitter according to ...

Pedometer apparatus with tone code technology for wireless data transmission function

A pedometer apparatus with wireless data transmission function includes a transmitting member and a receiving member. The transmitting member includes a step counting means, a first microprocessor and an audio transmitter. The receiving member includes a microphone module, a second microprocessor and a data output means. The present invention is susceptible to low production costs, requires low power consumption and is easy and convenient to use.

COILED TUBING CONDITION MONITORING SYSTEM

A system and techniques for acoustically establishing the onset of an emergent condition relative coiled tubing in a well. The system may include fiber optic line run through the coiled tubing for sake of vibration detection in coiled tubing indicative of buckling, structural defects or other downhole coiled tubing conditions. Thus, application optimization action may be undertaken in a manner that enhances coiled tubing operational efficacy. 1. A method of monitoring a condition of coiled tubing during downhole deployment in a well , the method comprising:advancing the coiled tubing into the well;detecting an acoustic signal via vibrations relative the coiled tubing; andmonitoring changes in the acoustic signal over time to determine an emergence of the condition.2. The method of further comprising performing an application in the well via the coiled tubing.3. The method of further comprising establishing a predetermined acoustic profile of the coiled tubing in advance of the determination of the emergent condition.4. The method of further comprising performing a contingency optimization upon the determination of the emergent condition.5. The method of wherein the emergent condition comprises coiled tubing buckling.6. The method of wherein said contingency optimization includes one of operating a vibration mechanism coupled to the coiled tubing in the well and delivering friction reducer through the coiled tubing in the well.7. The method of wherein the emergent condition is a defect condition in the coiled tubing.8. The method of wherein the defect condition in the coiled tubing is one selected from a group consisting of a pinhole defect claim 7 , cracking claim 7 , pipe collapse claim 7 , differential pipe sticking claim 7 , mechanical pipe sticking and motor stalling.9. The method of wherein said detecting comprises employing a fiber optic line within the coiled tubing for acquisition of the signal.10. The method of further comprising inducing a vibration in the ...

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.

Measurement method and measurement arrangement for interference suppression in a receive signal of an EMAT transducer

A measurement method is provided on an electrically conducting object. A first ultrasound wave is generated in the object by means of a first EMAT transmit transducer of a measurement arrangement. A first EMAT receive transducer of the measurement arrangement detects a first receive signal. The first receive signal comprises a first ultrasound signal resulting at least partially from the first ultrasound wave which has propagated through at least a part of the object, as well as a first electromagnetic interference signal. A second receive signal is also detected comprising a second electromagnetic interference signal by means of a first receive means of the measurement arrangement. The first receive signal and the second receive signal are processed jointly. At least the first receive signal is at least partially interference-suppressed.

SYSTEM AND METHOD FOR AN INAUDIBLE TONES TRACKING SYSTEM

A tracking system, wireless device, and method. The tracking system includes sensors receiving one or more inaudible tones from an electronic device detected by at least one of the sensors. The tracking system includes a server in communication with the sensors identifies a location of the electronic device in response to detecting the one or more inaudible tones associated with the electronic device.

MEDICAL APPARATUS AND METHODS INCLUDING AN ARRAY SYSTEM FOR SEGMENTING SIGNALS AND GENERATING A COMPLEX WAVEFORM AT A FOCAL POINT USING RECOMBINATION OF SEGMENTED SIGNALS

An apparatus and methods are provided to realize an input waveform using wavelet processing and reconstruction via separated antenna array systems having different beam paths and different frequency components which can include phased array transmitters to recreate the input waveform in medical applications. One aspect of the invention can include a wavelet function used for the examples shown herein which includes a first and second moments of a statistical function, i.e. the mean and variance used with an inverse wavelet to create rectangular pulses that lend themselves to use in the invention herein. Other embodiments of the invention can use other input waveform separation functions paired with signal separation and recombination at a focus point. A selected function can be matched to its application associated with avoidance of sending the input waveform along a single beam path, a desired a focus point, and separation of an input signal. 1. A medical system including a sensor and signal transmission system comprising:a medical support structure operable to support a biological structure and said signal transmission system with respect to a focus point within said biological structure including a first support section and a plurality of second support sections;an input device adapted to receive a first plurality of signals comprising an initial input waveform;a plurality of spaced apart transmitters;a plurality of antenna respectively coupled to said plurality of spaced apart transmitters, wherein each said plurality of antennas are adapted to operate at a different frequency than other said plurality of antennas, each of said plurality of antennas are oriented to have a different beam path through said biological structure than another said transmitter;a Target Acquisition, Tracking, Control, and Pointing (TATCP) system adapted to control orientation and operation said plurality of transmitters and antennas, said TATCP system adapted to orient and control said ...

Ultrasound system and method for controlling ultrasound system

In an ultrasound system 1, a mobile information terminal 3 is wirelessly connected to an ultrasound probe 2 and an external monitor 4. The ultrasound probe 2 includes: a transducer array 11; a transmitting and receiving unit 14 that generates a sound ray signal by directing the transducer array 11 to transmit and receive ultrasonic waves; and an image information data generation unit 19 that generates image information data from the sound ray signal. The mobile information terminal 3 includes: a display unit 34; an operation unit 39 including a touch sensor; an operation image generation unit 37 that generates an operation image for an input operation; an external monitor data generation unit 36 that generates external monitor data from the image information data; and a terminal-side wireless communication unit 32 that transmits the external monitor data to the external monitor 4. The external monitor 4 displays an external monitor ultrasound image based on the external monitor data.

DATA DELIVERY USING ACOUSTIC TRANSMISSIONS

Systems, methods, and computer program products for delivering information to an individual, group, or device. The information is carried by audio signals beyond the audible frequency range of human hearing, but within the frequency range of an audio system. The information is modulated onto an ultrasonic frequency and embedded into an audio signal transmitted by the audio system. Each individual, group member, or device may have or be coupled to a receiver configured to receive an acoustic signal transmitted by the audio system that includes the modulated ultrasonic frequency. The receiver extracts the information from the modulated ultrasonic frequency and provides the information to the individual, group member, or device.

ULTRASONIC TRANSDUCER DEVICE, PROBE, ELECTRONIC INSTRUMENT, AND ULTRASONIC DIAGNOSTIC DEVICE

An ultrasonic transducer device includes a first substrate, a plurality of ultrasonic transducer elements, a second substrate and a wiring member. The first substrate defines a plurality of openings arranged in an array pattern. Each of the ultrasonic transducer elements is provided in each of the openings in a plan view. The second substrate includes a first wiring part, and coupled to the first substrate. The wiring member includes a second wiring part electrically connecting the ultrasonic transducer elements to the first wiring part. 1. An ultrasonic transducer device comprising:a first substrate defining a plurality of openings arranged in an array pattern;a plurality of ultrasonic transducer elements with each of the ultrasonic transducer elements being provided in each of the openings in a plan view;a second substrate including a first wiring part, and coupled to the first substrate; anda wiring member including a second wiring part electrically connecting the ultrasonic transducer elements to the first wiring part.2. The ultrasonic transducer device according to claim 1 , further comprisingan integrated circuit connected to the first wiring part,the integrated circuit including a prescribed number of input and output terminals on a signal processing side, the prescribed number being smaller than a number of conductive lines connected to the ultrasonic transducer elements.3. The ultrasonic transducer device according to claim 2 , whereinthe integrated circuit includes a multiplexer.4. The ultrasonic transducer device according to claim 2 , further comprisingan external connection terminal arranged on a second surface of the second substrate that is opposite from a first surface facing the first substrate, the external connection terminal being connected to the integrated circuit.5. The ultrasonic transducer device according to claim 4 , whereinthe integrated circuit includes an integrated circuit chip mounted on the second surface of the second substrate.6. ...

Method and apparatus for data transmission

The disclosure relates to a method and an apparatus for data transmission, where the method includes: a first mobile device transmits authentication data to a second mobile device via a sound wave, and transmits data to the second mobile device via a sound wave after the second mobile device has been successfully authenticated, thereby achieving data transmission between the first mobile device and the second mobile device via a sound generating apparatus, such as a microphone and a loudspeaker, in the first mobile device and the second mobile device, with small power consumption and no interference to the antenna related to the voice call of the mobile device.

Mobile Service Requests to Any Sound Emitting Device

An information system generates data, generates an audio token, associates the audio token with the data, and transmits the audio token along with the data to the account management system. The information system configures a broadcasting computing device to broadcast the audio token at a location. User computing devices at the location via an audio communication channel receive the broadcast token and retransmit the audio token to the account management system via a network. The account management system receives the audio token from a particular user computing device along with a request for data associated with the audio token, extracts the data associated with the audio token data, and transmits the data associated with the audio token to the particular user computing device. 120-. (canceled)21. A computer-implemented method to transmit data to user computing devices via audio communication , comprising:providing, by one or more processors, an audio token to a broadcasting device for broadcast via an audio communication channel;receiving, by the one or more processors, the audio token from a user computing device, the audio token being received from the user computing device based on an audio broadcast of the audio token by the broadcasting device via the audio communication channel; andobtaining, by the one or more processors and in response to determining data that is associated with the received audio token, approval to process a payment transaction by at least in part transmitting the data to the user computing device.22. The computer-implemented method of claim 21 , further comprising:receiving, by the one or more processors, a request to generate the audio token.23. The computer-implemented method of claim 21 , further comprising:generating, by the one or more processors, the audio token.24. The computer-implemented method of claim 21 , further comprising:associating, by the one or more processors, the audio token with the data.25. The computer-implemented ...

Systems and Methods for Monitoring Organisms Within an Aquatic Environment

Systems and methods for monitoring organisms within an aquatic environment are described. According to one aspect, an injectable acoustic transmission device includes a body configured to be injected inside of an organism, a transducer within the body and configured to convert a plurality of electrical signals into a plurality of data transmissions which are transmitted externally of the body and the organism, a plurality of circuit components within the body and configured to use electrical energy from a power source to generate the electrical signals which are provided to the transducer, and wherein the transducer defines an internal volume and at least one of the circuit components is provided within the internal volume of the transducer. 1. An injectable acoustic transmission device comprising:a body configured to be injected inside of an organism;a transducer within the body which is configured to convert a plurality of electrical signals into a plurality of data transmissions which are transmitted externally of the body and the organism;a plurality of circuit components within the body which are configured to use electrical energy from a power source to generate the electrical signals which are provided to the transducer; andwherein the transducer defines an internal volume and at least one of the circuit components is provided within the internal volume defined by the transducer.2. The device of wherein the circuit components comprise a sensor configured to generate environment data regarding an environment of the device and the data transmissions include the environment data.3. The device of wherein the transducer is configured to transmit the data transmissions externally of the body in a plurality of separate data transmissions.4. The device of further comprising the power source claim 3 , and wherein the circuit components include energy storage circuitry configured to store the electrical energy for the electrical signals which are converted into the ...

SUBSEA TELECOMMUNICATION SYSTEM

A subsea telecommunication system that includes a first acoustic modem that couples to a first vehicle and communicates acoustically. A second acoustic modem couples to a second vehicle and communicates acoustically with the first acoustic modem. A first computer system receives an environmental parameter and updates a physical layer parameter of the subsea telecommunication system in real time in response to the environmental parameter. 1. A subsea telecommunication system , comprising:a first acoustic modem configured to couple to a first vehicle and to communicate acoustically;a second acoustic modem configured to couple to a second vehicle and to communicate acoustically with the first acoustic modem; anda first computer system configured to receive an environmental parameter and to update a physical layer parameter of the subsea telecommunication system in real time in response to the environmental parameter.2. The subsea telecommunication system of claim 1 , comprising the second vehicle claim 1 , wherein the second vehicle is an underwater vehicle.3. The subsea telecommunication system of claim 1 , comprising one or more sensors configured to detect the environmental parameter.4. The subsea telecommunication system of claim 1 , wherein the environmental parameter comprises underwater currents claim 1 , acoustic noise claim 1 , temperature claim 1 , salinity claim 1 , sound velocity claim 1 , or a combination thereof.5. The subsea telecommunication system of claim 1 , wherein the second acoustic modem is configured to receive data from a sensor and transmit the data to the first acoustic modem.6. The subsea telecommunication system of claim 5 , wherein the sensor comprises a camera.7. The subsea telecommunication system of claim 6 , comprising a second computer system configured to receive in real time data delivery parameters from the first computer system.8. The subsea telecommunication system of claim 1 , wherein the first computer system is configured to ...

COMMUNICATION IN FLUID MEDIUM USING MOTOR MODULATION

Aquatic vehicles may use electric motors for propulsion, such as brushless motors. As an example, a speed of these motors can be controlled using a pulse-width-modulated (PWM) electrical signal that varies the motor speed by varying pulse parameters within the PWM signal. PMW modulation can cause the motor to emit significant acoustic noise into the environment. In a fluid medium, such as aquatic environment, such noise can be detected with hydrophones or other acoustic sensors. The subject matter described herein can include modulating a signal provided to a motor to provide a communication signal to be mechanically (e.g., acoustically) emitted by the motor in a fluid medium, such as an underwater medium. In this manner, the motor can function both as a source of propulsion, and as an electroacoustic transducer (e.g., a transmitter). 1. An electromechanical communication system , comprising:an electrically-powered propulsion motor mechanically coupled to a vehicle, the propulsion motor configured to provide mechanical propulsion in a fluid medium;a control circuit coupled to the propulsion motor, the control circuit configured to generate an electrical signal to the propulsion motor including a portion corresponding to operating energy for the propulsion motor to use in providing thrust, and a portion corresponding to a transmission signal to be acoustically transmitted through the fluid medium by the propulsion motor acting as an electromechanical transducer.2. The electromechanical communication system of claim 1 , comprising an acoustic receiver configured to receive the transmission signal and to provide an electrical signal representative of the received transmission signal.3. The electromechanical communication system of claim 2 , wherein the fluid medium is water; andwherein the acoustic receiver comprises an acousto-electric transducer.4. The electromechanical communication system of claim 2 , comprising a signal processor configured to process a signal ...