| Patent application number | Description | Published |
|---|
| 20090102590 | Underwater Electrically Insulated Connection - An underwater connector ( | 04-23-2009 |
| 20090156119 | Communication through a barrier - A magnetic flux coupling transducer system comprising a primary coil ( | 06-18-2009 |
| 20090160716 | Wearable antenna - A wearable article of clothing and the like is configured to be worn by a person underwater or underground; An antenna. with at least one loop, is coupled to the wearable item. The antenna provides transmission or receipt of electromagnetic signals and has a size and geometry that maximizes antenna transmission area while minimizing a restriction on movement by the person wearing the wearable article. The antenna carries an alternating current that provides conductive attenuation and has three different field components. Each field component has a different geometric loss when moving a distance r from the antenna. R is a propagating distance from the antenna. | 06-25-2009 |
| 20090160722 | Antenna formed of multiple loops - A magnetic and/or magneto-electric antenna is provided that has a plurality of conducting loops. Two or more of the loops are driven by separate drivers. | 06-25-2009 |
| 20090160723 | Antenna formed of multiple resonant loops - A magnetic and/or magneto-electric antenna that has a plurality of conducting loops that each can be resonated at a frequency that is offset from the other loops to provide a composite band-pass response that is broader than that of the individual loops. | 06-25-2009 |
| 20090160725 | Co-located transmit-receive antenna system - A transceiver antenna system comprising at least one solenoid receive antenna and at least one transmitting loop antenna, the at least one solenoid receive antenna being located with its axis in the plane of a transmitting loop antenna and located inside the loop. | 06-25-2009 |
| 20090170433 | Inductive communications system - A bidirectional asymmetric system is provided with a first node and a second node. The first node has a first transmitter that produces a modulated magnetic flux and a first exciter receiver that acts to receive data at the first node. The second node is coupled to the first node with a direct inductive communications downlink and a mutually inductive uplink. The second node includes a receiver that produces a signal induced by the first transmitter at the first node. The second node has a mutually inductive data transmitter that modules an exciter signal produced at the first node by the exciter receiver. | 07-02-2009 |
| 20090245025 | Underwater communications - An environmental monitoring system including at least one underwater measurement device and a transmitter for transmitting data from the measurement device to an above water station using a magnetically coupled antenna. | 10-01-2009 |
| 20090322641 | Electrically small antenna - An antenna system, with a loop antenna and a loop current, is provided for transmitting an electromagnetic signal through a medium. The loop antenna has an E field transducer that generates an E field, and an H field transducer that generates an H field. The E and H fields are orthogonal in space and have at least one of a magnitude and phase relationship that is matched to an intrinsic impedance of a medium to generate a propagating wave. In an insulating medium the loop current lags an E field plate voltage by 90° to produce in phase E and H fields. In a conductive medium current is applied to the loop with a 135° phase lag with respect to a voltage across the E field plates. The H field is generated by the current component and leads current by 90°. | 12-31-2009 |
| 20100085839 | Underwater navigation system - An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor compresses data to be transmitted. A modulator modulates compressed data onto a carrier signal. An electrically insulated, magnetic coupled antenna transmits the compressed, modulated signals. The receiver has an electrically insulated, magnetic coupled antenna for receiving a compressed, modulated signal. A demodulator is provided for demodulating the signal to reveal compressed data. A de-compressor de-compresses the data. An appropriate human interface is provided to present transmitted data into text/audio/visible form. Similarly, the transmit system comprises appropriate audio/visual/text entry mechanisms. | 04-08-2010 |
| 20100102915 | Electrical connector system - The present invention relates to a connector system that provides the transfer of electrical power and/or data communications signals between two systems. The connector has no conductive electrical connection and can operate independently of angular orientation. | 04-29-2010 |
| 20100107958 | Underwater vehicle guidance - The present invention relates to an underwater guidance system for guiding an underwater apparatus, for example an underwater vehicle, towards a target structure, such as a docking station. The system comprises at least one system for capturing or sensing information on the relative position of the apparatus and the target structure and/or at least one imaging system for capturing an image of the target structure and a transmitter for wireless electromagnetic transmission of data indicative of the position information and/or captured image to the underwater apparatus or an underwater apparatus controller. | 05-06-2010 |
| 20100109933 | Underwater remote sensing - An underwater remote sensing system comprising a transmitter for transmitting an electromagnetic signal, a receiver for receiving an electromagnetic signal reflected from an object and determining means for determining the location of the object, wherein at least one of the transmitter and receiver is underwater. The determining means may be operable to determine the location of the object using signals received at three or more receiver positions. To do this, three or more receiver antennas may be provided. Alternatively, a single receiver antenna may be provided and moved between three or more different measurement locations. | 05-06-2010 |
| 20100110835 | Underwater navigation - An underwater navigation system comprising a transmitter having an electrically insulted magnetic coupled antenna for transmitting an electromagnetic and/or magneto-inductive signal, a receiver having an electrically insulated magnetic coupled antenna for receiving an electromagnetic and/or magneto-inductive signal from the transmitter, and determining means for determining the position of the receiver relative to the transmitter using the received electromagnetic and/or magneto-inductive signal. | 05-06-2010 |
| 20100134319 | Electromagnetic/acoustic underwater communications system - An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor compresses data to be transmitted. A modulator modulates compressed data onto a carrier signal. An electrically insulated, magnetic coupled antenna transmits the compressed, modulated signals. The receiver that has an electrically insulated, magnetic coupled antenna for receiving a compressed, modulated signal. A demodulator is provided for demodulating the signal to reveal compressed data. A de-compressor de-compresses the data. An appropriate human interface is provided to present transmitted data into text/audio/visible form. Similarly, the transmit system comprises appropriate audio/visual/text entry mechanisms. | 06-03-2010 |
| 20100135121 | Underwater communications system with adaptable carrier frequency - An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor compresses data to be transmitted. A modulator modulates compressed data onto a carrier signal. An electrically insulated, magnetic coupled antenna transmits the compressed, modulated signals. The receiver that has an electrically insulated, magnetic coupled antenna for receiving a compressed, modulated signal. A demodulator is provided for demodulating the signal to reveal compressed data. A de-compressor de-compresses the data. An appropriate human interface is provided to present transmitted data into text/audio/visible form. Similarly, the transmit system comprises appropriate audio/visual/text entry mechanisms. | 06-03-2010 |
| 20100135122 | Underwater communications system comprising relay transceiver - An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor compresses data to be transmitted. A modulator modulates compressed data onto a carrier signal. An electrically insulated, magnetic coupled antenna transmits the compressed, modulated signals. The receiver that has an electrically insulated, magnetic coupled antenna for receiving a compressed, modulated signal. A demodulator is provided for demodulating the signal to reveal compressed data. A de-compressor de-compresses the data. An appropriate human interface is provided to present transmitted data into text/audio/visible form. Similarly, the transmit system comprises appropriate audio/visual/text entry mechanisms. | 06-03-2010 |
| 20100138152 | Electromagnetic beam-forming antennas underwater - An underwater communication system comprising a transmitter for transmitting information using an electromagnetic and/or magneto-electric transmit antenna and a receiver for receiving information using an electromagnetic and/or magneto-electric receive antenna, at least one of the transmit and receive antennas comprising a plurality of antenna elements which collectively use field superposition and interference to form composite field patterns, beams or shapes and wherein one or both the transmit antenna and receive antenna are underwater. | 06-03-2010 |
| 20100156193 | Inductively coupled data and power transfer system and apparatus - The present invention provides a system and apparatus for transferring electronic data and/or power from one station to another by means of a transportable pod comprising a solid state memory device and further provided with an inductively linked, electrically insulated connector. The transportable pod comprises a battery which is used to power a remote host docking station, which may be used in an underwater environment for the collection of subsea data. The transportable pod can be transferred alternately from a home docking station, where it is charged up, and where it's stored data is uploaded and to a remote host docking station where is provides power, and where it collects and stores data collected by the remote host docking station. | 06-24-2010 |
| 20100159827 | Underwater remote sensing - An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor compresses data to be transmitted. A modulator modulates compressed data onto a carrier signal. An electrically insulated, magnetic coupled antenna transmits the compressed, modulated signals. The receiver that has an electrically insulated, magnetic coupled antenna for receiving a compressed, modulated signal. A demodulator is provided for demodulating the signal to reveal compressed data. A de-compressor de-compresses the data. An appropriate human interface is provided to present transmitted data into text/audio/visible form. Similarly, the transmit system comprises appropriate audio/visual/text entry mechanisms. | 06-24-2010 |
| 20100159828 | Underwater communications system - An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor compresses data to be transmitted. A modulator modulates compressed data onto a carrier signal. An electrically insulated, magnetic coupled antenna transmits the compressed, modulated signals. The receiver that has an electrically insulated, magnetic coupled antenna for receiving a compressed, modulated signal. A demodulator is provided for demodulating the signal to reveal compressed data. A de-compressor de-compresses the data. An appropriate human interface is provided to present transmitted data into text/audio/visible form. Similarly, the transmit system comprises appropriate audio/visual/text entry mechanisms. | 06-24-2010 |
| 20100171615 | System for Detection of Underwater Objects - An underwater detection system comprising: at least one transmitter ( | 07-08-2010 |
| 20100171637 | Wireless auxiliary monitoring and control system for an underwater installation - The present invention provides a wireless auxiliary system for monitoring and control of an underwater installation. The auxiliary system of the present invention sends data and control signals between an underwater installation—for example, a lower stack | 07-08-2010 |
| 20100183313 | Underwater data transfer system - The present invention relates to a system that provides flexible data access to a wired underwater communications network through an electromagnetic, non-conductive connection. An underwater data access point is described wherein data access to a cabled network is provided through an electromagnetic connection. An inductive connector system may also be provided to allow transfer of data and/or power between a data access point and a client system. | 07-22-2010 |
| 20100238050 | Wireless underwater hull inspection system - An underwater inspection system comprising an underwater mobile inspection station ( | 09-23-2010 |
| 20110032794 | Undersea seismic monitoring network - The present invention provides an undersea seismic monitoring network, the monitoring network comprises at least one underwater vehicle and at least two monitoring stations located on the seabed, where each of the monitoring stations comprises at least one sensor for gathering seismic data and a radio modem for transmitting and receiving data to and from the underwater vehicle via a first wireless connection and where a second wireless connection is established between the monitoring stations, wherein the first wireless connection is formed by electromagnetic radiation through the water and the second wireless connection is formed by the propagation of an electromagnetic signal at least partially through the seabed. | 02-10-2011 |
| 20110064151 | Dispersion control in underwater electromagnetic communications systems - A data communication system comprising a transmitter for transmitting an electromagnetic and/or magneto-electric signal, a receiver for receiving an electromagnetic and/or magneto-electric signal, and means for compensating for reducing or substantially eliminating signal dispersion, wherein at least one of the transmitter and receiver is underwater. | 03-17-2011 |
| 20110076940 | Underwater wireless communications hotspot - The present invention provides an underwater wireless communications hotspot comprising an active zone which is circumscribed by a large closed loop antenna and within which wireless communication by means of electromagnetic signals can take place. The wireless communications hotspot of the present invention is suitable for data transfer between a communications node of the wireless hotspot and a receiver mounted on a mobile unit which is located inside the active zone of the hotspot. The wireless hotspot of the present invention provides a means for high bit rate data transfer from the communications node and the mobile unit, due to improved uniformity of coverage within the active zone of the hotspot and due to a reduction in the attenuation with distance compared to communications at positions outside the perimeter of a loop antenna. | 03-31-2011 |
| 20110090762 | Underwater navigation system - The present invention provides an underwater navigation system which can determine the bearing and the range of a remotely located beacon from a navigation station. The remotely located beacon transmits a pair of signals each having a different propagation velocity. Typically, the pair of signals are an acoustic signal and an electromagnetic signal. The range of the beacon to the navigation station is determined by a time differential in the detection of the two signals at the navigation station. The time differential is alternately a variation in phase between the two signals, or a time difference between the reception of a timing event encoded in synchronization on the pair of signals. In one form, the navigation station is a mobile unit which navigates to the remotely located beacon, and in another form the navigation station has a fixed position, and the remotely located beacon is mobile. | 04-21-2011 |
| 20110136444 | Transmit and receive antenna - A transmit/receive antenna for transmission and reception of electromagnetic signals. The transmit/receive antenna comprises a TX section and an RX section, where the TX section comprises a magnetically coupled TX element and a TX input terminal and the RX section comprises at least one magnetically coupled RX element and has an RX output terminal. Axes of the TX loop element and the at least one magnetically coupled RX solenoid element are parallel. Moreover, the at least one magnetically coupled RX element is positioned to provide high isolation at the RX terminal of the antenna from TX electrical signals fed to the TX input. Specifically, the at least one magnetically coupled RX element is positioned at a so that the net magnetic flux generated by the TX loop element and threading the RX solenoid element is zero. | 06-09-2011 |
