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Patent Searching and Data


Matches 301 - 350 out of 1,886

Document Document Title
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...  
WO/2007/066137A1
Data communication apparatus comprising transmission means adapted to transmit data as the ratio of pairs of frequencies between objects that are moving relative to one another. It is particularly applicable to acoustic data communicatio...  
WO/2007/060223A1
A system and method for evaluating and tracking a frequency offset for a transmission system whose bandwidth is not insignificant with respect to a central frequency, wherein the system transmits waveforms containing fixed carriers whose...  
WO/2007/022233A3
A method for determining the position of an underwater device includes placement of a plurality of station keeping devices on or below the surface of the water in known positions. A device to locate is provided for placement below the su...  
WO/2007/043376A1
A modulation device includes: a modulation unit (51) for modulating a carrier (42) of an audible band by an encoded transmission signal (3) so as to generate a modulated signal; a masker sound generation unit (44) for generating a masker...  
WO/2007/038750A1
A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are des...  
WO2004005953A3
Dive computers and methods of logging information including position, audio and video information are disclosed. In one embodiment, the invention includes a processor, a global positioning system receiver connected to the processor and a...  
WO/2007/019992A1
Parameterisation, operational checking or data scanning are signif icant operating steps in process automation. According to an exemplary embodiment of the pr√©sent invention a field device for process automation is stated, which field d...  
WO/2007/009937A1
The invention relates to a method, device and system for bi-directionally communicating between an acoustic danger-warning unit (AGME) and at least one other unit (WE) in a structurally limit space. In order to provide the bi-directional...  
WO2005089225A3
A data communications and underwater release management system for acquiring data from remote positively buoyant instrumentation packages (90) moored underwater through the use of an intervening mechanical release (10) coupled at one end...  
WO2005055442A3
An underwater communications method and apparatus is provided for demodulating communications signals while compensating for the effects of range rate, i.e., relative velocity between the nodes of the communication system. The method of ...  
WO/2006/100660A1
A submergible modular vessel (20, V) comprising a body (22) fittable with at least one cargo module (32, 36, 38) , an anchor system (24) comprising an anchor (76) with a power unit (86) for deploying and retracting the anchor, a control ...  
WO2005006566A3
Data is encoded as a number of audio tones forming a leader tone, a series of tones forming a start symbol and a greater number of data symbols following the start symbol which are each formed of a group of audio tones. The information i...  
WO/2006/025798A1
A method and system for real-time audible monitoring of acoustic signals. The method comprises dividing said acoustic signal into segments of a selected duration; deriving a intermediate signal comprising a concatenation of sections, eac...  
WO/2006/005938A1
A portable sound system for use in portable devices such as laptops or mobile phones is described using the principles of parametric sound generation to create a virtual headphone¬≠-like system using focussable and steerage beams of ultr...  
WO/2005/125064A1
The invention relates to a method for detecting targets emitting wavelength energy into a medium by means of entropy determination at time segments of electric reception signals of a receiver which is arranged in the medium remote from s...  
WO/2005/122446A1
A robust underwater communication system, for communication between an acoustic signal transmitter and a remotely positioned acoustic signal receiver, wherein transmitted data is carried by a plurality of symbols each having two componen...  
WO/2005/093976A1
The aim of the invention is so transmit data and power through a wall (11) by means of structure-borne noise. Said aim is achieved by injecting noise on the front face (11a) of the wall (11) with the aid of a first sound transducer (12) ...  
WO/2005/086393A1
An upper-order transmitter unit (141) converts an electric signal transferred from an upper-order electronic device (101) into an ultrasonic signal for transmission, which is then transferred to a lower-order receiver unit (142) via a fi...  
WO2005015369A3
A system and method for predicting passive, high-frequency sonar array performance at any underwater location, implemented as a software package running on a computer. An operator selects an arbitrary geographical location, specifies a s...  
WO/2005/046107A2
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...  
WO2004080111A3
An acoustic transducer arrangement and system and method utilizing the same are presented. The acoustic transducer arrangement includes: an acoustic transmitter assembly including an array of transmitter elements operable to generate tog...  
WO/2005/015369A2
A system and method for predicting passive, high-frequency sonar array performance at any underwater location, implemented as a software package running on a computer. An operator selects an arbitrary geographical location, specifies a s...  
WO/2005/006566A2
Data is encoded as a number of audio tones forming a leader tone, a series of tones forming a start symbol and a greater number of data symbols following the start symbol which are each formed of a group of audio tones. The information i...  
WO2004001961A3
A method for sensing acoustic energy as the energy passes from a more (dense10) to a less dense medium (20) while compensating for energy level loses that may have occurred along the acoustic path of the acoustic energy. The method may b...  
WO/2004/080111A2
An acoustic transducer arrangement and system and method utilizing the same are presented. The acoustic transducer arrangement includes: an acoustic transmitter assembly including an array of transmitter elements operable to generate tog...  
WO2003101185A3
A fishing system buoy (10) has a watertight bulbous shell housing an electronic load (25) and with a center of mass located within a lower half (12) of the shell. The load includes sonar operatively coupled via a microprocessor with a ra...  

Matches 301 - 350 out of 1,886