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Patent Searching and Data


Matches 251 - 300 out of 1,838

Document Document Title
WO/2011/034389A2
Disclosed is a technique for performing communication using ultrasonic waves in an environment in which radio waves are severely blocked and thus wireless communication is difficult to perform. According to the present invention, in an e...  
WO/2011/027168A1
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 bon...  
WO/2011/027169A1
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 bon...  
WO/2011/002539A1
A power source of an implantable medical device (IMD) is connected to one or more components that perform various functions of the IMD via an acoustic switching circuit. The acoustic switching circuit may include one or more switches tha...  
WO/2011/002540A1
A power source of an implantable medical device (IMD) is connected to one or more components that perform various functions of the IMD via an acoustic switching circuit. The acoustic switching circuit may include one or more switches tha...  
WO/2010/142733A1
The invention relates to a terminal (10) for a defibrillator, including a casing (20) and a removable defibrillator (100) placed in a recess (30) in the casing (20), such that the defibrillator (100) can be removed from the recess (30). ...  
WO/2010/084308A3
The position of a mobile unit (12) within a detection zone is determined. An acoustic signal is emitted from the mobile unit and received along a first path (54). An echo of the signal is received after reflection from a surface (46) wit...  
WO/2010/108537A1
The invention relates to a hearing instrument comprising an audio signal processing unit (22) for processing audio signals and means (14, 26, 30) for mechanically applying acoustic waves to the blood in a blood vessel (16) of a user in t...  
WO/2010/050700A3
An apparatus and method for wireless communication using an acoustic signal in a system including a first device including a loudspeaker and a second device including a microphone. The first device generates wireless communication inform...  
WO/2010/062806A1
An apparatus having a voice-estimation (VE) interface that probes the vocal tract of a user with sub-threshold acoustic waves to estimate the user' s voice while the user speaks silently or audibly in a noisy or socially sensitive enviro...  
WO/2010/050700A2
An apparatus and method for wireless communication using an acoustic signal in a system including a first device including a loudspeaker and a second device including a microphone. The first device generates wireless communication inform...  
WO/2010/034874A1
An apparatus uses a transducer to produce vibration in the ultrasonic frequency range and in the audible frequency range. A membrane or cantilever structure is coupled to the transducer to produce acoustic waves. When the vibration is in...  
WO/2010/032548A1
Provided is an OFDM modulation/demodulation method in a transmission system for transmitting data from a transmission source to a transmission destination by the OFDM modulation/demodulation. The method includes: a step (S1) in which th...  
WO/2010/030513A1
Underwater communications apparatus and methods are presented using iterative correlation-based equalization in which initial estimated symbols of a current data block are produced using a correlation-based equalizer (CBE) based at least...  
WO/2010/022528A1
The invention relates to a method and a device for wireless transmission between at least one first transducer (T1) arranged in a first location and at least one second transducer (T2) arranged in a second location remote from the first ...  
WO/2010/021810A1
A subsea monitoring system, comprising a plurality of sensor nodes, a communication network operably coupled to the sensor nodes and at least one central controller. Each of the sensor nodes and the central controller comprise an acousti...  
WO/2010/016589A1
A modulation device includes: a spread code generation unit which generates a spread code having a predetermined cycle; an acoustic signal input unit having an acoustic signal; a first modulation unit which phase-modulates the spread sig...  
WO/2010/011629A1
A system and method is provided for an asymmetric formulation whereby multiple water masses mix together and generate an 'eddy-like' feature. Given the core and the shore profiles, embodiments produce a three-dimensional eddy representat...  
WO/2008/075092A9
An apparatus and method are provided for transferring data through a submarine hull or other solid boundary using high frequency acoustic signals, so avoiding penetration of the hull or boundary. First and second transducers are mounted ...  
WO/2009/158062A1
Systems (10) and methods for monitoring the acoustic coupling of medical devices is disclosed. An illustrative system for monitoring the acoustic coupling of an acoustic transducer (16) attached to a patient's body (26) includes a signal...  
WO/2009/133276A3
The invention relates to a device for interaction between humans/machines/sea mammals, that includes a visualisation screen and/or a beacon provided with or more receivers/transmitters of aerial and/or underwater signals, and driven by a...  
WO/2009/136786A1
The invention relates to a method of covertly transmitting information. The method comprises the step of providing biological sound data. Further, the method comprises the step of processing the biological sound data with the information...  
WO/2009/133276A2
The invention relates to a device for interaction between humans/machines/sea mammals, that includes a visualisation screen and/or a beacon provided with or more receivers/transmitters of aerial and/or underwater signals, and driven by a...  
WO/2009/061562A8
An underwater operations support system facilitates underwater exploration, monitoring, maintenance and construction operations associated with development of natural resources. The operations support system may include energy generation...  
WO/2009/127376A1
The invention relates to a device for transmitting information in solid media (21) with at least one communication node (1, 33), comprising a transmission device and a receiving device. To improve the information transmission, the transm...  
WO/2009/106880A1
An acoustic multi-carrier modulation communication scheme comprises a plurality of narrowband carriers (60 to 68) in individual communication channels, wherein each channel is separated by a guard band (69) of frequency dependent bandwid...  
WO/2009/024784A3
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 deco...  
WO/2009/061562A2
An underwater operations support system facilitates underwater exploration, monitoring, maintenance and construction operations associated with development of natural resources. The operations support system may include energy generation...  
WO/2005/046107A3
A system and a method for the transmission and reception of digital data wirelessly using acoustic tones comprises an encoder, a data interleaving system, an error correction system, and a decoder. The digital data is decoded by using in...  
WO/2008/157609A3
Advantageous OFDM-based underwater acoustic (UWA) apparatus, systems and methods are provided according to the present disclosure. In general, OFDM transmissions over UWA channels encounter frequency-dependent Doppler drifts that destroy...  
WO/2009/027639A1
A method of underwater communication between a link initiator and a link receptor, by transmitting a link acquisition waveform from the initiator to the receptor, and establishing communications channel parameters from such a received wa...  
WO/2009/024784A2
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 deco...  
WO/2009/022926A1
The present invention relates to a system, method and software for monitoring a diver comprising: a topside monitoring system (13) on a vessel comprising a receiver for receiving data from at least one diver (12), the data being transmit...  
WO/2009/023008A1
A miner communication and locating system is disclosed. Two technologies used in the system include a communicator (101), and a locator array (103) that may be used with a computer. The communicator portion (101) allows trapped miners to...  
WO/2008/112006A3
Data recorded by directing a single sonar beam pulse towards a surface, and recording the reflected sonar signals with a large plurality of detectors, is used to generate a mathematical representation of the surface. The mathematical rep...  
WO/2008/149856A1
It is possible to provide a modulation device and a demodulation device which can synchronize data signals without using a carrier frequency for a synchronization signal. It is also possible to provide a transmission system and an acoust...  
WO/2008/140443A1
The invention is a reinforced plastic sonar dome having a low acoustical insertion loss combined with sufficient mechanical strength. Acoustical and structural fibers are stochastically mixed and formed into a blended yarn. The blended y...  
WO/2007/115178A3
A method for detecting an object in a body of water by generating a plurality of signals and applying each signal to a separate submerged sonar node that is a part of an array of sonar nodes.  
WO/2008/115312A2
Ultrasound imaging systems and methods are described that include a cableless front end having a UltraWideBand transceiver and a beamformer that transmit ultrasound data to a back end physically separated from the front end, with the bac...  
WO/2008/109267A1
A system and method for performing channel estimation. The system includes a receiver for decoding OFDM. Upon receiving an OFDM symbol, a plurality of demodulated subcarrier modulation symbols for the OFDM symbol are generated. The demod...  
WO/2008/075092A1
An apparatus and method are provided for transferring data through a submarine hull or other solid boundary using high frequency acoustic signals, so avoiding penetration of the hull or boundary. First and second transducers are mounted ...  
WO/2008/070505A1
A two way communication system that does not require the use of a device by one of the communicators. The system employs an audio spotlight to project a signal to a specific location, where one person is, and a laser audio receiver to re...  
WO/2008/043064A1
A pedestrian warning system includes at least two ultrasonic emitters provided on a vehicle configured to emit ultrasonic signals, having different frequencies, and configured to create a shaped ultrasonic field. The ultrasonic emitters ...  
WO/2008/042556A2
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 ...  
WO/2008/010306A1
Provided is an ultrasonic measuring method comprising a step of receiving a plurality of ultrasonic waves spectrally diffused with mutually different codes, by first and second receivers, to create first and second received signals, resp...  
WO/2007/131264A1
An acoustic field in a body of water is monitored using a coherent light field emitter applying a distributed light field across the surface of the water to be reflected, and a sensor is used to sense reflected components of the light fi...  
WO/2007/097157A1
An acoustic signal transmission system transmits information by a sound wave. The system includes a modulation device, a plurality of speakers, a microphone, and a demodulation device. The modulation device encodes a transmission signal ...  
WO/2007/076039A3
A system or corresponding method provides for communicating data in confined waveguides containing a fluid. The system includes processing and transmitter/receiver operations at nodes in or alone the confined waveguides and transducers t...  
WO/2007/076039A2
A system or corresponding method provides for communicating data in confined waveguides containing a fluid. The system includes processing and transmitter/receiver operations at nodes in or alone the confined waveguides and transducers t...  
WO/2007/073214A1
A transducer interface system including a flexible bladder containing a fluid, a mounting element locating the flexible bladder and an ultrasonic transducer so that the ultrasonic waves of the transducer pass through the bladder before r...  

Matches 251 - 300 out of 1,838