| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 340850000 | UNDERWATER | 31 |
| 20100164747 | METHOD AND APPARATUS FOR ESTABLISHING LOW FREQUENCY/ULTRA LOW FREQUENCY AND VERY LOW FREQUENCY COMMUNICATIONS - A method for generating electromagnetic waves in the ELF/ULF comprising the steps of using a ground-based Horizontal Electric Dipole (HED) antenna to send electromagnetic pulses upwardly in the E-region of the ionosphere to form an oscillatory or pulsed electric field; allowing said pulsed electric field to interact with magnetized plasma of the lower ionosphere to generate a pulsed horizontal and vertical current which have associated Horizontal and Vertical Electric Dipole moment; and allowing them to radiate. | 07-01-2010 |
| 20130038462 | SYSTEM AND METHOD FOR DATA TRANSMISSION VIA ACOUSTIC CHANNELS - The present invention relates to transmitting data using vector sensors and via the vector components of the acoustic field. The data can be received via vector sensors and/or scalar sensors and/or arrays of such sensors. | 02-14-2013 |
| 20130088360 | SUBSEA OPTICAL SWITCH - An optical monitoring system includes a sensor network including a plurality of optical sensors. The optical switch module is disposed on a first side of a pressure barrier, coupled to the sensor network, and operable to select various subsets of the optical sensors responsive to a control signal. The sensor interrogation unit is disposed on a second side of the pressure barrier and operable to generate the control signal and receive an optical signal from a particular subset of the sensor elements selected by the optical switch module. The optical penetrator is coupled to the interrogation unit and the optical switch module and operable to communicate the optical signal through the pressure barrier. The inductive control unit is operable to inductively communicate the control signal and a power signal to the optical switch module through the pressure barrier. | 04-11-2013 |
| 20090002192 | Dive computer system - A method of operating a dive information tracking system is disclosed wherein a diver or user carries or wears an underwater computer during an underwater dive. The underwater computer acquires information during the current underwater dive and the newly acquired information is wirelessly and automatically communicated to a central database that is connected to the world wide web of computers. | 01-01-2009 |
| 20110298633 | UNDERWATER DETECTION DEVICE - An underwater detection device includes a transceiver module for transmitting underwater an ultrasonic pulse signal that is frequency-modulated and receiving an echo signal corresponding to the transmitted signal, a pulse compression module for pulse-compressing the signal received by the transceiver module and outputting a signal pulse-compressed, a suppression range determining module for determining a suppression range where a range side lobe suppression process is performed for the pulse-compressed signal, an echo determining module for determining whether the data of the pulse-compressed signal at each depth corresponding to a range side lobe, a suppression value determining module for determining a suppression value for the data of the pulse-compressed signal at each depth, a suppression conducting module for performing a calculation to suppress the range side lobe based on the suppression value for the data determined to be data of the pulse-compressed signal corresponding to the range side lobe by the echo determining module among a plurality of data of the pulse-compressed signals that fall into the suppression range, and a display processing module for generating a signal for display based on the signal outputted from the suppression conducting module to display a generated signal as detected information. | 12-08-2011 |
| 20110291854 | OBTAINING DATA FROM AN UNDERWATER COMPONENT - A method of obtaining data from a subsea control module of an underwater well facility is provided. The method comprises: providing a tag which stores data relating to the module, the tag being operable to wirelessly transmit the data to a reader device; locating the tag at the module; providing a reader device; and interrogating the tag using the reader device, such that the tag is caused to wirelessly transmit the data to the reader device, wherein the tag is communicatively connected to a subsea electronics module for receiving information therefrom. | 12-01-2011 |
| 20100060478 | ANTENNA FOR UNDERWATER COMMUNICATIONS - An antenna comprises first and second radiating elements for connecting to a first and second potential levels respectively. The first and second potential levels are substantially different for generating an electrostatic field from the first and the second radiating elements. The antenna further comprises first and second field shaping structures for controlling field propagation in a first and second direction respectively. The first and second field shaping structures are interdisplaced for defining a field pathway while the first and second radiating elements are disposed adjacent to the first and second field shaping structures and along the field pathway for directing the electrostatic field in a propagation direction through a liquid medium. More specifically, the propagation direction is defined by the field pathway and substantially perpendicular to at least one of the first and second directions. | 03-11-2010 |
| 20090295596 | SWIM WATCH - A watch device for use by a swimmer while swimming in a body of water. The watch device may generally comprise a housing, a location determining component disposed within the housing and operable to receive one or more satellite signals to determine a current geographic location of the housing, and a processing system. The processing system may synchronize the location determining component with the swimmer's arm movement so that the location determining component can determine the current geographic location of the housing. | 12-03-2009 |
| 20110199227 | System for underwater communications comprising fluid modifying means - The present invention provides a system for underwater communications by electromagnetic signals capable of providing a higher data transfer rate for a given range of communications than current prior art systems for underwater communications by electromagnetic signals. The system has an active mode of operation and an inactive mode. In the inactive mode the transmit antenna and the receive antenna are arranged so that the region extending between them is occupied by water. During the active mode, a fluid modifying means provides a reduced conductivity fluid in the region between the transmit antenna and the receive antenna and electromagnetic signals are transmitted from the transmitter to the receiver via the reduced conductivity fluid thereby providing a higher data transfer rate for a given range of communications. | 08-18-2011 |
| 20110227753 | REINFORCED MARINE OPTIC FIBER SECURITY FENCE - A fence for establishing a secure marine perimeter includes an optic fiber net. The optic fiber net includes an optic fiber wire with an input end and an output end. A light transmitter connects to the input end to introduce an input optic signal into the optic fiber wire. A light receiver connects to the output end to receive an output optic signal from the optic fiber wire. A strength member is incorporated into the optic fiber wire to strengthen the optic fiber net. A processor is connected to the light receiver to generate an output signal based on the output optic signal. The processor compares the output optic signal with the input optic signal and generates an alarm if a difference between the input optic signal and the output optic signal exceeds a predetermined alarm threshold. | 09-22-2011 |
| 20120105247 | BLACKBOX POSITION REPORTING DEVICE - Systems and methods are provided for reporting activities at certain locations below sea level. One embodiment includes a flight recorder system for collecting and reporting activities at specific locations below sea level. Further, the system is configured to provide automatic, real-time, collection of aircraft data and then transmission of such data to a world-wide communication system for subsequent reception, analysis, storage and generation of aircraft flight, safety, and fuel efficiency. | 05-03-2012 |
| 20120105246 | CONTACTLESS UNDERWATER COMMUNICATION DEVICE - This invention provides, inter alia, communication devices for contactless underwater data transmission and reception. In one embodiment the present invention provides a transmitting device comprising (a) a water-tight housing; (b) a radiative element disposed outside of the housing, said radiative element comprising at least two antennae, wherein the radiative element is configured to propagate an electric field signal through water; and (c) a communications section disposed within the housing, said communications section being coupled to said radiative element, said communications section comprising at least one transmitter, wherein the communications section is configured to transmit digitally modulated data as an electric field signal propagated by the radiative element. Also provided are similarly constituted receiving devices, transceiving devices, systems containing such devices and methods of using such devices and systems. | 05-03-2012 |
| 20090079583 | Shutdown System - A production shutdown system for an underwater hydrocarbon production facility, comprising, on the topside: | 03-26-2009 |
| 20100238050 | Wireless underwater hull inspection system - An underwater inspection system comprising an underwater mobile inspection station ( | 09-23-2010 |
| 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 |
| 20100052940 | POWER LINE COMMUNICATION DEVICE FOR SUBSEA WELL - An electronic subsea device ( | 03-04-2010 |
| 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 |
| 20100283628 | Underwater detection device - An underwater detection device for detecting underwater by transmission and reception of an ultrasonic signal is provided. The device includes a transmission module for transmitting the ultrasonic signal underwater, a reception module for receiving an echo signal of the transmitted ultrasonic signal, a bottom detection module for detecting a bottom based on the echo signal from the bottom, a bottom-sediment determination module for calculating probabilities of the bottom sediment on how much the bottom sediment contains each of predetermined bottom sediment types based on the echo signal and a bottom-sediment display module for displaying a texture representing each of the bottom sediment types below the bottom being displayed based on the probabilities. | 11-11-2010 |
| 20120098674 | WIRELESS SUBSEA MONITORING AND CONTROL SYSTEM - A subsea system for producing or processing a hydrocarbon production fluid comprises a plurality of sensors, each of which generates a sensor signal that is representative of a condition of a component of the system or a property of a fluid. A base unit mounted on or adjacent the system is in wireless communication with each of the sensors, and a subsea control module is in communication with the base unit. In operation, the sensor signals are transmitted wirelessly from the sensors to the base unit and are then transmitted from the base unit to the subsea control module. | 04-26-2012 |
| 20100019929 | COMMUNICATION SYSTEM FOR SURVEY SOURCE AND RECEIVER - A method for communicating with a receiver during an electromagnetic survey. In one implementation, the method may include sending a survey signal to a subsurface region, wherein the survey signals is a first electromagnetic signal and sending a diagnostic signal to the receiver. The diagnostic signal is a second electromagnetic signal having a diagnostic message. | 01-28-2010 |
| 20090135022 | DIVE COMPUTER WITH GLOBAL POSITIONING SYSTEM RECEIVER - Dive computers in accordance with embodiments of the invention are disclosed. One embodiment includes a microprocessor, a pressure transducer connected to the microprocessor, a microphone connected to the microprocessor, a speaker connected to the microprocessor, a telephone transceiver connected to the microprocessor, a GPS receiver connected to the microprocessor and a display. In addition, the microprocessor, pressure transducer and display are configured to display information concerning the dive computer's depth of submersion, the microprocessor, microphone, speaker and telephone transceiver are configured to enable the dive computer to be used as a telephone handset, and the microprocessor is configured to obtain GPS coordinates from the GPS receiver. In a further embodiment, the microprocessor, the microphone, the speaker, the telephone transceiver, the display, and the GPS receiver are components of a mobile phone handset including an external connector for communicating with external devices, the pressure transducer is packaged separately from the mobile phone handset and the pressure transducer packaging includes a connector configured to mate with the external connector of the mobile phone handset creating a connection between the pressure transducer and the microprocessor, and the mobile phone handset and the pressure transducer are contained within a waterproof housing. In addition, a software application installed on the mobile phone handset configures the microprocessor to record information concerning the dive computer's depth and time of submersion in a dive log. | 05-28-2009 |
| 20100245119 | TWO-TIER STREAMER COMMUNICATION SYSTEM - A two-tier communication system for a seismic streamer. The communication system operates over an unshielded twisted-pair communication line extending the length of the streamer. Repeater units having a repeater function and a device controller function divide the twisted pair into line segments. Coils on each segment couple signals inductively to collocated external devices in a low-speed 2400 baud FSK data link between the devices and an associated device controller. A Gaussian 8-level FSK high-speed 60 kbit/s data link is established along all the segments with the repeaters re-transmitting boosted signals along the entire length of the communication line. The coils are transparent at the high-speed data rate. Time division multiple access (TDMA) or frequency division multiple access (FDMA) is used to accommodate the two links on the single twisted pair. | 09-30-2010 |
| 20100245120 | SEA VESSEL TAGGING APPARATUS AND SYSTEM - The present invention discloses a tagging and identification device and system for tracking and monitoring sea vessels as they enter sea ports, estuaries and/or other channels. The tagging device of the present invention comprises a receiver, for receiving an underwater electromagnetic signal transmitted by an underwater beacon. An acoustic transmitter is provided for transmitting an identification signal to an acoustic receiver deployed nearby. The acoustic identification signal is transmitted after an electromagnetic trigger signal is received from the underwater beacon. The tagging and device may further comprise a memory device which can store data relating to position and time of the see vessel to which it is attached. The tagging and identification device of the present invention is covert, compact and is capable of extended active deployment without replenishment of batteries etc. The identification tagging device and system of the present invention is capable of being deployed for tracking the location of sea vessels without the knowledge of the vessel crew. The system of the present invention allows third a third party to monitor suspect vessels as they enter specific ports or estuaries. | 09-30-2010 |
| 20120126992 | Exploitation Of Sea Floor Rig Structures To Enhance Measurement While Drilling Telemetry Data - A method for communicating data in an offshore data communication system comprises measuring L/MWD data with a sensor disposed in a bottomhole assembly positioned in a subsea borehole. The bottomhole assembly is disposed along a drillstring extending through the subsea borehole. In addition, the method comprises communicating the L/MWD data from the bottomhole assembly to the seafloor with a telemetry signal. Further, the method comprises receiving the telemetry signal with at least one telemetry transducer positioned proximal the sea floor. Still further, the method comprises processing the telemetry signal at the seafloor to produce a processed signal. Moreover, the method comprises transmitting the processed signal from the sea floor to the sea surface. | 05-24-2012 |
| 20120212350 | UNDERWATER TETHERED TELEMETRY PLATFORM - A submersible telemetry platform includes a body and lift-generating surface(s) configured to provide lift to the body when a fluid flows thereacross. The platform includes attitude control surface(s) for controlling a pitch of the body in such a way that modifies the lift characteristics of the body. A control device is coupled to the attitude control surface(s) for controlling the lift attitude control surface(s). A base is configured to be anchored to a subsurface location and is coupled to the telemetry platform by a tether in such a way that the telemetry platform has freedom-of-movement about a common center point at the base. Telemetry equipment is coupled to the body of the telemetry platform for enabling wireless communication with at least one remote device. The telemetry platform is controllable to rise from a submersed position in a body of liquid to a surface of the body of liquid. | 08-23-2012 |
| 20120299742 | Power and Signal Distribution System - A power and signal distribution system comprises a converter unit connected to a plurality of control units. The converter unit and the control units are arranged in areas difficult to access, for instance on the sea bed. The converter unit is connected to a remote monitoring and supplying device via at least one cable connection. Each control unit has assigned thereto at least one production apparatus for crude oil or natural gas corresponding gate valves, chokes, biops, actuators. | 11-29-2012 |
| 20120133525 | METHOD AND APPARATUS FOR SUBSEA WIRELESS COMMUNICATION - System and method for communicating the state of a downhole subsea well which includes a wellbore with at least one sensor disposed within it. Information from the wellbore is communicated to a seabed data governor which is disposed on the seafloor. The seabed data governor includes buoyant signaling devices and a release module allowing the release of the buoyant signaling devices which then travel to the sea surface. | 05-31-2012 |
| 20100019930 | Electric Control and Supply System - In at least some embodiments, an electrically controlled subsea production system includes a subsea electrical distributor that receives a high direct current (DC) voltage. The electrical distributor converts the high DC voltage to a lower DC voltage. The electrically controlled subsea production system also includes a plurality of subsea trees coupled to the subsea electrical distributor, wherein valves of the subsea trees selectively operate based on the lower DC voltage. | 01-28-2010 |
| 20130021165 | ELECTRONICS MODULE FOR USE SUBSEA - An electronics module for use subsea is provided. The electronics module comprises a vibration sensor on a printed circuit board in the electronics module. the vibration sensor being configured to sense vibration of the electronics module. The module is typically a subsea electronics module for use in a control system for a subsea hydrocarbon extraction well facility. | 01-24-2013 |
| 340852000 | Electrodes and electrode systems | 2 |
| 20100102985 | RECEIVER ORIENTATION IN AN ELECTROMAGNETIC SURVEY - A system for determining the position and/or orientation of electromagnetic receivers in a network of receiver instruments at a remote location, a first receiver instrument including one or more electromagnetic sensors, the system comprising transmitting means to send a characteristic signal, detecting means to detect transmitted signals from a plurality of receiver instruments, depth measurement means to measure the depth of the first instrument, recording means to store data from the transmitting means, the detecting means and the depth measurement means, and processing means for processing data from the receiver instruments. | 04-29-2010 |
| 20110187553 | METHOD AND SYSTEM OF AN ELECTROMAGNETIC TELEMETRY - An electromagnetic telemetry repeater. At least some of the illustrative embodiments are methods comprising inducing an electrical signal along a metallic tubular (the electrical signal carrying the information and the inducing within a borehole beneath the ocean floor), sensing an electric field proximate to the ocean floor, sensing a magnetic field proximate to the ocean floor, recreating the information using one sensed field as indicative of the information and the other sensed field as indicative of the noise, and sending the information toward the ocean surface. | 08-04-2011 |
