Near Field Coupling (e.g., Inductive, Capacitive, Etc.) Patents (Class 340/854.8)
  • Patent number: 10326320
    Abstract: A power supply apparatus includes a power supply unit configured to perform power supply, a communication unit configured to perform communication, and a control unit configured to control, based on data received by the communication unit, a power supply for an electronic device.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: June 18, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Akihiro Tanabe
  • Patent number: 9761372
    Abstract: The invention relates to a wireless power connector and a wireless power connector system including at least one wireless power connector for contactlessly receiving electric power from a second connector and for contactlessly supplying electric power to a third connector. In order to enable the wireless power connector to inductively forward electric power received from the second connector, the invention suggests providing a first and a second mating end respectively connectable to the second and the third connector and a magnetic core extending between the first and the second mating end. A coil is wound around the magnetic core and configured to output, as an alternating current, at least parts of the electric power received from the second connector. The magnetic core interconnects the first and the second mating end such that, in a connected state, the magnetic core inductively forwards electric power to the third connector.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: September 12, 2017
    Assignee: TE Connectivity Nederland B.V.
    Inventor: Gied Habraken
  • Patent number: 9031505
    Abstract: A communications device is disclosed that includes a united integrated circuit card (UICC) that provides a single wire protocol (SWP) current signal to a near field communications (NFC) device. The SWP current signal is filtered by a filter to remove noise from the SWP current signal. The filter is precharged by a reference voltage when the SWP current signal is in a low state and then filters the SWP current signal when the SWP current signal is in a high state. A switching network provides the filter with the reference voltage to precharge when the SWP is current signal is in the low state and then provides the filter with the SWP current signal to filter when the SWP current signal is in the high state.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: May 12, 2015
    Assignee: Broadcom Europe Limited
    Inventor: David John Miles
  • Patent number: 9007233
    Abstract: Aspects of this invention include a downhole assembly having a non-contact, capacitive coupling including first and second transceivers deployed in corresponding first and second downhole tool members. The capacitive coupling is disposed to transfer electrical signals between the first and second transceivers. In one exemplary embodiment, the capacitive coupling is configured to transfer data and power between a substantially non-rotating tool member and a rotating tool member, for example, the shaft and blade housing in a steering tool. Exemplary embodiments of this invention provide a non-contact, high-speed data communication channel between first and second members of a downhole assembly. Moreover, exemplary embodiments of the invention also provide for simultaneous non-contact transmission of electrical power between the first and second tool members.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 14, 2015
    Assignee: Schlumberger Technology Corporation
    Inventor: Junichi Sugiura
  • Patent number: 8988248
    Abstract: A method for modulating the effective power in one or several power consuming devices disposed in an A/C system in order to transmit data on a power supply line thereof by specifically varying the effective power in the connected device. In order to transmit the data, the momentary value of the effective power is randomly varied (increased or decreased), and the data is impressed into the A/C supply line by a unit (transmitter or modulator) and is evaluated by another unit (receiver or demodulator).
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: March 24, 2015
    Assignee: AIZO AG
    Inventors: Wilfried Beck, Ralph Hofmann
  • Patent number: 8965720
    Abstract: An efficiency monitor for monitoring the efficiency of power transmission by an inductive power outlet. The efficiency monitor includes an input power monitor, for measuring the input power delivered to the primary coil, and an output power monitor, for measuring the output power received by the secondary coil. The input and output powers are used by a processor to determine an index of power-loss. A circuit breaker may be used to disconnect the inductive power outlet in case of excessive power loss.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: February 24, 2015
    Assignee: Powermat Technologies, Ltd.
    Inventors: Yossi Azancot, Amir Ben-Shalom, Oola Greenwald, Arik Rofe
  • Patent number: 8843062
    Abstract: A coupling area enhancement device includes a small coil and a large coil on opposing sides of a sheet of electromagnetic interference (EMI) absorptive material. The coupling area enhancement device may include one or more holes and may include adhesive material and sticker covers. Placement of the coupling area enhancement device may be accomplished by sticking the small coil to a host device near a contactless antenna. The large coil may also be stuck to a battery cover.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: September 23, 2014
    Assignee: Tyfone, Inc.
    Inventors: Siva G. Narendra, Saurav Chakraborty
  • Publication number: 20140262237
    Abstract: A wellbore servicing system comprising two or more sensing, tool nodes, wherein each of the sensing, tool nodes are configured to selectively allow, disallow, or alter a route of fluid communication between an axial flowbore thereof and an exterior thereof via one or more ports, and wherein each of the sensing, tool nodes are further configured to monitor at least one parameter, and a logging controller node wherein the logging controller node communicates with the sensing, tool nodes via a near field communication (NFC) signal.
    Type: Application
    Filed: June 10, 2013
    Publication date: September 18, 2014
    Inventors: Zachary William WALTON, Matthew Todd HOWELL, Michael Linley FRIPP
  • Publication number: 20140266772
    Abstract: A wellbore servicing system comprising a tool node disposed within a wellbore, and a transitory sensing node configured to be communicated through the wellbore, wherein the transitory sensing node is configured to measure a wellbore parameter, and wherein the transitory sensing node communicates with the tool node via a near field communication (NFC) signal. A wellbore servicing method comprising positioning a tool node within a wellbore, moving a transitory sensing node through the wellbore such that the transitory sensing node comes into communication with the tool node, wherein the transitory sensing node is configured to measure a wellbore parameter during movement through the wellbore, and wherein the transitory sensing node communicates with the tool node via a near field communication (NFC) signal.
    Type: Application
    Filed: June 10, 2013
    Publication date: September 18, 2014
    Inventors: Zachary William WALTON, Matthew Todd HOWELL, Michael Linley FRIPP
  • Publication number: 20140266210
    Abstract: Apparatus and methods for acquiring data in a wellbore containing three or more casing or tubing strings through the use of inductive couplers to transmit power and signal through one or more fluid filled annular spaces and one or more casing or tubular elements.
    Type: Application
    Filed: October 31, 2013
    Publication date: September 18, 2014
    Applicant: SENSOR DEVELOPMENTS AS
    Inventor: ØIVIND GODAGER
  • Publication number: 20140262502
    Abstract: A wellbore servicing system comprising a controller node disposed within a wellbore, and a tool node configured for movement through the wellbore, wherein the tool node communicates with the controller node via a near field communication (NFC) signal, wherein prior to communication with the controller node, the tool node will not perform at least one function and, after communication with the controller node, the tool node will selectively perform the at least one function.
    Type: Application
    Filed: June 10, 2013
    Publication date: September 18, 2014
    Inventors: Zachary William WALTON, Matthew Todd HOWELL, Michael Linley FRIPP
  • Patent number: 8816536
    Abstract: A system includes a dispenser and a transmitter. The dispenser is configured to support and dispense product. The dispenser includes: a housing; an antenna disposed and configured to receive electromagnetic energy that originates from the transmitter; a power supply disposed within the housing and configured to convert the electromagnetic energy received at the antenna into DC (direct current) power; a dispenser mechanism configured and disposed to dispense the product from the dispenser on command; a controller disposed in operable communication with the power supply and the dispenser mechanism; and, an actuator disposed in operable communication with the controller. Upon actuation of the actuator, and upon presence of the DC power, the controller is responsive to facilitate action by the dispenser mechanism to dispense the product. The transmitter is configured to transmit electromagnetic energy and is disposed in operable communication with the dispenser.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: August 26, 2014
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Brian S. Borke, Andre Lanouette
  • Publication number: 20140218207
    Abstract: Remote operation of downhole tools in a subterranean wellbore is performed by inserting untethered, mobile devices sequentially into the wellbore. The mobile devices can include motive means, power supply, communication and data storage means, etc. In one embodiment, the method comprises maneuvering a first mobile device into proximity with a downhole tool, the device powering the tool. The first device is then removed, such as by flowing up or dissolving. The now-powered tool is used to perform a test or other operation. A second mobile device is maneuvered into proximity with the downhole tool and data is transferred. The second device is retrieved with the data or, using on-board logic devices, provides “if-then” commands to the downhole tool. Alternately, a third mobile device can be used to power and transfer commands to the tool. The method can be used for various tasks, such as opening bypass ports on ICD valves.
    Type: Application
    Filed: February 4, 2013
    Publication date: August 7, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: John C. Gano, Floyd Randolph Simonds, Michael Fripp, Luke William Holderman, Jean Marc Lopez
  • Patent number: 8794314
    Abstract: The invention relates to a drill rod having at least two rod elements, which are connected to each other in a rotationally fixed and detachable manner, wherein the rod elements each have an inner pipe and an outer pipe, between which a ring-shaped receiving space is formed, the rod elements each have an energy and/or data line, which extends along a longitudinal axis of the drill rod, and the energy and/or data lines of the rod elements are each connected to an induction coil, wherein the induction coils can be coupled to each other inductively for energy and/or data transmission along the drill rod. A first rod element has an inner induction coil located at an outer circumference of its inner pipe and a second rod element has an outer induction coil located at an inner circumference of its outer pipe.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: August 5, 2014
    Assignee: Bauer Maschinen GmbH
    Inventor: Andreas Stimpfle-Ziegler
  • Patent number: 8762720
    Abstract: An authentication method between a secure host processor and a controller of an NFC system, the controller being equipped with an NFC interface circuit sending and receiving contactless data, includes connecting the host processor to the controller and checking that there is a predefined relation between a first secret data stored by the host processor and a second secret data stored by the controller. The method further includes transmitting the second secret data to the controller and storing of the second secret data by the controller. The host processor may be removably associated with a contactless component storing the second secret data which is contactlessly transmitted to the controller.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: June 24, 2014
    Assignee: Inside Secure
    Inventors: Bruno Charrat, Philippe Martineau
  • Publication number: 20140111349
    Abstract: A radio frequency identification (RFID) tag can include a die attached to an inductive-capacitive (LC) circuit including a capacitive element coupled to an inductive element. The LC circuit can have a resonant frequency that varies according to properties of fluid proximate the RFID tag. The RFID tag can further include a coating material disposed around the die to form an outer surface of the RFID tag. The coating material may have a thickness over a portion of the LC circuit, to permit a conductivity property of a fluid proximate the outer surface to affect the resonant frequency of the LC circuit such that the resonant frequency shifts to a second resonant frequency. Additional apparatus, systems, and methods are disclosed.
    Type: Application
    Filed: December 31, 2013
    Publication date: April 24, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Mark W. Roberson, Craig W. Roddy, Charles Bartee, Kristopher McGuire, Krishna M. Ravi, Ginger Rothrock, Scott Goodwin
  • Patent number: 8704677
    Abstract: A downhole signal transmission system provides electric radiofrequency signals that are coupled to electrically conductive or non-conductive fluids through electrical insulators. A plurality of signal repeaters are tuned to the frequencies of the radiofrequency signals, and a plurality of transmission lines terminated by resonance circuits are also provided such that the terminating resonance circuits resonate on the frequencies of the electric radiofrequency signals. The plurality of signal repeaters and plurality of transmission elements are arranged to be redundant such that a failure of one or more of the signal repeaters or a failure of one or more of the transmission elements does not substantially affect the operation of the data transmission system. The signal repeaters and transmission elements also are arranged such that a failure of any of the signal repeaters or a failure of any of the transmission elements is communicated to the surface.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: April 22, 2014
    Assignee: Martin Scientific LLC
    Inventor: Manfred G. Prammer
  • Patent number: 8693949
    Abstract: A near-field RF communicator which is operable to perform a polling process to initiate communication with another near-field RF communicator in near-field range, wherein the near-field communicator is configured to perform a detection process, having a lower energy requirement than a polling process, to determine whether a near-field RF communicator is present in near-field range, and to perform the polling process in the event that the detection process indicates that a near-field RF communicator is present in near-field range.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 8, 2014
    Assignee: Broadcom Corporation
    Inventor: Philip Stewart Royston
  • Patent number: 8670710
    Abstract: A communications device is disclosed that includes a united integrated circuit card (UICC) that provides a single wire protocol (SWP) current signal to a near field communications (NFC) device. The SWP current signal is filtered by a filter to remove noise from the SWP current signal. The filter is precharged by a reference voltage when the SWP current signal is in a low state and then filters the SWP current signal when the SWP current signal is in a high state. A switching network provides the filter with the reference voltage to precharge when the SWP is current signal is in the low state and then provides the filter with the SWP current signal to filter when the SWP current signal is in the high state.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: March 11, 2014
    Assignee: Broadcom Innovision Limited
    Inventor: David John Miles
  • Patent number: 8639186
    Abstract: Drill pipe segments, communication systems, and methods of manufacturing pipe segments usable for communicating data wirelessly between sensors and tools placed in an oil and/or gas well are provided. Communication specks are applied on at least one of an outer surface or an inner surface of the pipe segments or coil tubing.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: January 28, 2014
    Assignee: Sondex Wireline Limited
    Inventor: David Blaine Ayers
  • Patent number: 8588681
    Abstract: Disclosed is a semiconductor device which performs signal transmission by using inductor coupling. The semiconductor device comprises one or more transmission and reception coil pair, each pair comprising a single transmission coil and a plurality of reception coils, or a plurality of transmission coils and a single reception coil, or a plurality of transmission coils and a plurality of reception coils.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: November 19, 2013
    Assignee: NEC Corporation
    Inventor: Yoshihiro Nakagawa
  • Patent number: 8519865
    Abstract: In one aspect of the invention, a downhole tool string component comprises a tubular body with at least one end adapted for threaded connection to an adjacent tool string component. The end comprises at least one shoulder adapted to abut an adjacent shoulder of an adjacent end of the adjacent tool string component. An annular magnetic coupler is disposed within an annular recess formed in the at least one shoulder, and the magnetic coupler comprises a coil in electrical communication with an electrical conductor that is in electrical communication with an electronic device secured to the tubular body. The coil comprises a plurality of windings of wire strands that are electrically isolated from one another and which are disposed in an annular trough of magnetic material secured within the annular recess.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: August 27, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Craig Boswell
  • Patent number: 8511389
    Abstract: A subsea wellhead assembly having a completion landing string inside a drilling riser is described herein and comprises a power source for generating an alternating electrical current; a connector for connecting the power source to a receptacle in the subsea well assembly; a first inductor electrically connected to the power source through the connector; a subsea control module delivering power and control signals to the subsea well assembly; and a second inductor spaced from the first inductor, and located in the subsea control module, the second inductor positioned so that an EMF is produced on the second inductor when the alternating electrical current is passed through the first inductor to thereby generate an alternating current signal on the second inductor.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: August 20, 2013
    Assignee: Vetco Gray Inc.
    Inventor: Stephen P Fenton
  • Patent number: 8469084
    Abstract: A technique enables wireless communication of signals in a well. The technique is employed for communication of power signals and/or data signals between a mother wellbore and at least one lateral wellbore. A first wireless device is positioned in a mother wellbore proximate a lateral wellbore, and a second wireless device is positioned in the lateral wellbore. The power and/or data signal is transferred wirelessly between the first and second wireless devices via magnetic fields. A plurality of the first and second wireless devices may be employed in cooperating pairs to enable communication between the mother wellbore and a plurality of lateral wellbores.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: June 25, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Brian Clark, Thomas H. Zimmerman, Kuo-Chiang Chen, Emmanuel Rioufol, John Algeroy, Patrick McKinley
  • Patent number: 8432293
    Abstract: A NFC communicator or NFC communications enabled device (1 or 2 or 100a) has a data store (108) to store data, a coupler (17 or 32 or 102) to couple inductively with the magnetic field of a radio frequency signal and a signal generator (109) to supply a radio frequency signal to the coupler. A modulator (110) is provided to modulate a radio frequency signal in accordance with data and a demodulator (114) is provided to extract data from a modulated radio frequency signal inductively coupled to the coupler. A controller (107) enables the NFC communicator or NFC communications enabled device both to initiate near field radio frequency communication with another near field RF communicator and to respond to near field radio frequency communication initiated by another near field RF communicator. The NFC communicator or NFC communications enabled device also has a power deliver (19 or 34 or 103) that derives power from a radio frequency signal inductively coupled to the coupler to charge a chargeable power supply.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: April 30, 2013
    Assignee: Innovision Research & Technology PLC
    Inventor: Peter Robert Symons
  • Patent number: 8432294
    Abstract: An electronic module for use as a subsea electronic module (SEM) for an underwater fluid extraction well, as provided. An example of such an SEM includes a plurality of substantially planar electronics cards to operate devices in the SEM. The cards are arranged in a stack such that major faces of each card are oriented substantially parallel to, and coaxial with, major faces of the other cards in the stack. The SEM also includes a substantially planar switch card orientated relative to the stack such that its major faces are oriented substantially parallel to a main axis of the stack and orthogonal to the orientation of the major faces of the electronics cards within the stack. The switch card includes a first Ethernet switch blade configured to control traffic on a LAN area network and a second Ethernet switch blade configured to control traffic on a second LAN.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: April 30, 2013
    Assignee: Vetco Gray Controls Limited
    Inventor: Julian R. Davis
  • Patent number: 8378842
    Abstract: A downhole tool string component has a through-bore intermediate first and second tool joints adapted for connection to adjacent tool string components. A blind-hole is formed in an outer surface of the component. A processing unit is also disposed within an outer surface of the component. An electrical device that is disposed within the component is in communication with the processing unit through an electrically or optically conductive medium which has a self-aligning pattern.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: February 19, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Jim Shumway, Brad Barger
  • Patent number: 8334786
    Abstract: Apparatus for the wireless transmission of data, and preferably also of power, across a space between a length of production tubing and a surrounding casing in a petrochemical well, includes a pair of inductively-coupled coils, a first of which is located on the exterior of the production tubing generally coaxially therewith, and the second of which is located on the interior of the casing generally coaxially therewith. This may be used in particular as part of a system for transmitting power and data to/from a sensor monitoring the pressure and/or other environmental conditions within the “B” annulus B of a sub-sea well.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: December 18, 2012
    Assignee: Qinetiq Limited
    Inventors: Adrian Robert Bowles, Stuart John Eaton, Timothy Rupert Charles Jarman, Michael William Hopkins
  • Patent number: 8330615
    Abstract: An electric system for measurement and control in an oil/gas well using transmission of electric signals and supply of electric power. The system is provided with a current loop having an essentially constant current in a current loop and a number of downhole network nodes (1N) which are connected to the system.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: December 11, 2012
    Assignee: Roxar Flow Measurement AS
    Inventor: Trond Hagen
  • Patent number: 8315563
    Abstract: A wireless transceiver includes: (a) a low power radio frequency (LPRF) communications component capable of powering down to conserve energy and capable of powering up in response to an electronic signal, the LPRF communications component including a transmitter and a first receiver; and (b) a second receiver that is configured to screen a radio frequency broadcast and provide, on the basis of specific data identified therein, the electronic signal to the LPRF communications component in order to power up the LPRF communications component. The second receiver is adapted to draw less current than the LPRF communications component while awaiting receipt of and listening for a radio frequency broadcast.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: November 20, 2012
    Assignee: Google Inc.
    Inventor: Robert W. Twitchell, Jr.
  • Patent number: 8278930
    Abstract: Structure for deep MWD resistivity measurements suitable for both geo-steering and measurements ahead of the drill bit is disclosed. Alternating current is transmitted through a loop and an induction signal is measured by a two-coil bucking receiving system placed at some distance from the transmitter. To further reduce a parasitic effect of the currents in the pipe, a conductive copper shield wrapping around the pipe is used. The length of the shield is about one and one-half to two times longer than the longest transmitter/receiver spacing of the structure. The transmitter/receiver system is located in the center of the described electromagnetic shield.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: October 2, 2012
    Assignee: Baker Hughes Incorporated
    Inventor: Gregory B. Itskovich
  • Patent number: 8264369
    Abstract: A downhole tool assembly with electrical connectors disposed proximate an upper end and a lower end of the tool intelligently distributes electrical power. Switches are disposed between the electrical connectors and selectively allow or disallow electrical continuity between the electrical connectors. A microprocessor is in electrical communication with the electrical connectors and the switches. The microprocessor causes the switches to open or close based on the present of a current at the electrical connectors.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: September 11, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Craig Boswell
  • Patent number: 8264532
    Abstract: An optical inspection instrument includes a housing configured to move along the interior of a pipe string in a wellbore. The pipe has a cutting structure at its bottom end. The instrument includes a probe extending from a bottom end of the housing. The probe has an output from a light source and a light input to a video camera. The probe has a diameter selected to enable extension through an opening in the cutting structure. A method for inspecting a wellbore includes moving an instrument through an interior of a pipe string in the wellbore. The pipe has a cutting tool at its lower end. At least part of the instrument is moved outside the bottom end of the pipe through a port in the cutting tool. Optically transparent fluid is moved into the wellbore proximate an end of the instrument outside the pipe string. Objects proximate the fluid are inspected.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: September 11, 2012
    Assignee: ThruBit B.V.
    Inventors: James G. Aivalis, Christopher Prusiecki
  • Patent number: 8242928
    Abstract: A downhole signal transmission system provides electric radiofrequency signals that are coupled to electrically conductive or non-conductive fluids through electrical insulators. A plurality of signal repeaters are tuned to the frequencies of the radiofrequency signals, and a plurality of transmission lines terminated by resonance circuits are also provided such that the terminating resonance circuits resonate on the frequencies of the electric radiofrequency signals. The plurality of signal repeaters and plurality of transmission elements are arranged to be redundant such that a failure of one or more of the signal repeaters or a failure of one or more of the transmission elements does not substantially affect the operation of the data transmission system. The signal repeaters and transmission elements also are arranged such that a failure of any of the signal repeaters or a failure of any of the transmission elements is communicated to the surface.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: August 14, 2012
    Assignee: Martin Scientific LLC
    Inventor: Manfred G. Prammer
  • Patent number: 8242929
    Abstract: A communication module for transfer of information along a drill string has at least one antenna coil, wherein the communication module is configured such that a central coil axis of the antenna coil is substantially perpendicular to a longitudinal axis of a drill pipe to which it is affixed. Signals are relayed magnetically from node to node to exchange data along any desired length of drill string. The drill string itself forms a portion of the magnetic flux path and the earth and/or surrounding media forms another substantial portion of the closed flux path. Magnetic induction is advantageous because the steel drill pipe is ferromagnetic and exhibits a magnetic permeability of a few hundred to a few thousand times that of air.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: August 14, 2012
    Assignee: Raytheon Company
    Inventor: Theodore J. Vornbrock
  • Patent number: 8213355
    Abstract: A wireless communication system includes an access point, a master communication apparatus, and a slave communication apparatus, and the master communication apparatus and the slave communication apparatus performs wireless communication through the access point. The master communication apparatus stores setting information necessary for accessing the access point; performs wireless communication through the access point using the stored setting information; and performs near field communication with the slave communication apparatus to transmit the stored setting information to the slave communication apparatus in response to a setting information request received from the slave communication apparatus via near field communication.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: July 3, 2012
    Assignee: Sony Corporation
    Inventor: Takashi Matsuo
  • Patent number: 8208852
    Abstract: A casing contains a circuit substrate. A signal electrode for transmitting and/or receiving an electronic field signal is arranged on a first surface side of the casing. The signal electrode is electrically connected to a conductor, which is an apparatus component, of the circuit substrate. A battery and a reference electrode having an electric field reference potential, which are apparatus components, are arranged on the second surface side of the casing. The sum (Cst) of a capacitance between the signal electrode and the transmission medium and a capacitance between the apparatus component and the transmission medium generated while the first surface is facing the transmission medium is approximately equal to the sum (Cgt) of capacitances between the apparatus components and the transmission medium generated while the second surface is facing the transmission medium.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: June 26, 2012
    Assignee: Alps Electric Co., Ltd.
    Inventors: Hiroyuki Hebiguchi, Shigetoshi Matsuta
  • Publication number: 20120126993
    Abstract: A disclosed downhole telemetry system employs an array of near-field electromagnetic communication devices to relay information along a tubular in a borehole. In some embodiments, the devices are permanently attached to pipe joints without requiring any structural modification of the pipe joints. As the pipe joints are strung together in the normal fashion to form a tubular, the devices automatically establish a wireless communications path between an uphole terminus device and any downhole sensors or tools. The devices can include built-in sensors to provide distributed sensing of parameters such as temperature and pressure. In some embodiments the device array incorporates redundancy to minimize the chance of a communications network failure. The device array has applications for logging-while-drilling, production testing, well completion, reservoir monitoring, and well control.
    Type: Application
    Filed: August 11, 2009
    Publication date: May 24, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Etienne M. Samson, Paul F. Rodney
  • Patent number: 8130118
    Abstract: A system is disclosed as having first and second tubular tool string components. Each component has a first end and a second end, and the first end of the first component is coupled to the second end of the second component through mating threads. First and second inductive coils are disposed within the first end of the first component and the second end of the second component, respectively. Each inductive coil has at least one turn of an electrical conductor, and the first coil is in magnetic communication with the second coil. The first coil has more turns than the second coil.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: March 6, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: David R Hall, Scott Dahlgren, Paul Schramm
  • Patent number: 8102276
    Abstract: Aspects of this invention include a downhole assembly having a non-contact, capacitive coupling including first and second transceivers deployed in corresponding first and second downhole tool members. The capacitive coupling is disposed to transfer electrical signals between the first and second transceivers. In one exemplary embodiment, the capacitive coupling is configured to transfer data and power between a substantially non-rotating tool member and a rotating tool member, for example, the shaft and blade housing in a steering tool. Exemplary embodiments of this invention provide a non-contact, high-speed data communication channel between first and second members of a downhole assembly. Moreover, exemplary embodiments of the invention also provide for simultaneous non-contact transmission of electrical power between the first and second tool members.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: January 24, 2012
    Assignee: Pathfinder Energy Sevices, Inc.
    Inventor: Junichi Sugiura
  • Publication number: 20120013482
    Abstract: An apparatus that is usable with a well includes a first equipment section that includes a first inductive coupler and a second equipment section that includes a second inductive coupler. The second equipment section is adapted to be run downhole into the well after the first equipment section is run downhole into the well to engage the first equipment section. A mechanism of the apparatus indicates when the first inductive coupler is substantially aligned with the second inductive coupler.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Inventors: Dinesh R. Patel, Donald W. Ross, Anthony F. Veneruso, Fabien F. Cens, John R. Lovell, Ian Stuart Mackay
  • Patent number: 8084259
    Abstract: The present invention describes a system for accurately measuring the concentration of a substance within a filter housing. A concentration sensor and a communications device are coupled so as to measure and transmit the concentration of a particular substance within the filter housing while in use. This system allows the operator to certify the integrity of the filters within the filter housing at the customer site without additional equipment. In one embodiment, a tracer gas, such as helium or hydrogen, is added to a carrier and injected into the system. The concentration of tracer gas at a specific operating transmembrane pressure is indicative of bubble pointing specific pores in the filter. This test will give a more sensitive indication of the bubble point and the presence of defects than a standard diffusion test. In a second embodiment, two gasses, in a known ratio, are introduced into the filter housing.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: December 27, 2011
    Assignee: Millipore Corporation
    Inventor: Anthony DiLeo
  • Patent number: 8056619
    Abstract: An apparatus that is usable with a well includes a first equipment section that includes a first inductive coupler and a second equipment section that includes a second inductive coupler. The second equipment section is adapted to be run downhole into the well after the first equipment section is run downhole into the well to engage the first equipment section. A mechanism of the apparatus indicates when the first inductive coupler is substantially aligned with the second inductive coupler.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: November 15, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Dinesh R. Patel, Donald W. Ross, Anthony F. Veneruso, Fabien F. Cens, John R. Lovell, Ian Stuart Mackay
  • Patent number: 8051912
    Abstract: Measurement and/or control units located within a borehole are inductively coupled to a flat three phase power cable segment without piercing the armor around the cable. For drawing power from the cable, C-shaped, L-shaped or straight core(s) with winding(s) around at least a portion thereof are positioned proximate to one or both end conductors, outside the armor, with significantly overlapping the center conductor. For impressing or detecting signals on the cable, straight core(s) with winding(s) around at least a portion thereof are disposed on one or both sides of the cable, outside the armor, across all three conductors with the core oriented transverse to the cable conductors.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: November 8, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: James Edward Layton
  • Patent number: 8044820
    Abstract: A method for performing operations and for improving production in a well includes the steps of: providing radio identification devices at known locations in the well, and providing a reader device configured to read the identification devices, and to control the operations responsive to signals from the identification devices. The method also includes the steps of providing a process tool, and transporting the process tool and the reader device through the well. The reader device is programmed to control the process tool upon reception of a response signal from a selected identification device. The method can be used to perform perforating processes, packer setting processes, bridge plug setting processes, logging processes, inspection processes, chemical treating processes, and cleaning processes. In addition, the method can be performed dynamically by controlling the tool as it moves through the well, or statically by stopping the tool at a particular location within the well.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: October 25, 2011
    Assignee: Marathon Oil Company
    Inventors: Philip M Snider, Joseph A Zierolf
  • Patent number: 8031081
    Abstract: An embodiment of a wireless telemetry system for providing signal communication across a wired-communication gap in a bottom-hole assembly (“BHA”), the BHA having an upper portion and a lower portion separated by the wired-communication gap, includes an upper transceiver positioned in the upper portion and in signal communication with a surface telemetry system and a lower transceiver positioned in the lower portion and in signal communication with a drilling tool, the upper and the lower transceivers in signal communication with one another via wireless induction telemetry. Each transceiver may include an antenna that is positioned within the bore of a drill collar adjacent to a thinned wall section in the drill collar. The thinned wall section may include one or more of increasing an inside diameter relative to a base inside diameter of the bore and decreasing an outside diameter relative to a base outside diameter of the drill collar.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: October 4, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Attilio C. Pisoni, David L. Smith, Brian Clark, Jean Seydoux, Vassilis Varveropoulos
  • Patent number: 7986916
    Abstract: A near field RF communicator has an IQ demodulator and a demodulator processor that identifies a transition between logical states on the basis of either: 1) a magnitude obtained by adding a first value representing a difference between positive and negative peaks in the in-phase modulation and a second value representing a difference between positive and negative peaks in the quadrature phase modulation; or 2) whether a combined value representing a rate of change in the in-phase modulation and in the quadrature phase modulation exceeds a threshold.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: July 26, 2011
    Assignee: Innovision Research & Technology PLC
    Inventor: Andrew Williams
  • Publication number: 20110163890
    Abstract: Apparatus for the wireless transmission of data, and preferably also of power, across a space between a length of production tubing and a surrounding casing in a petrochemical well, includes a pair of inductively-coupled coils, a first of which is located on the exterior of the production tubing generally coaxially therewith, and the second of which is located on the interior of the casing generally coaxially therewith. This may be used in particular as part of a system for transmitting power and data to/from a sensor monitoring the pressure and/or other environmental conditions within the “B” annulus B of a sub-sea well.
    Type: Application
    Filed: September 24, 2008
    Publication date: July 7, 2011
    Applicant: QINETIQ LIMITED
    Inventors: Adrian Robert Bowles, Stuart John Eaton, Timothy Rupert Charles Jarman, Michael William Hopkins
  • Patent number: 7893814
    Abstract: A method and apparatus are described for facilitation of radio frequency (RF) communication between a radio frequency identification (RFID) device and RFID tags for a conveyer system. The RFID device is positioned in proximity of the conveyor system. At least one conductive surface is coupled to the RFID device. The conveyer system transports articles, at least one which has one or more associated RFID tags. The conveyer system is operated such that the articles are brought in contact with the at least one conductive surface. The RFID device, the at least one conductive surface and one or more of the associated RFID tags are capacitively coupled allowing RF signals to be communicated between RFID device and the one or more associated RFID tags. This enables data to be electronically read from the one or more associated RFID tags.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: February 22, 2011
    Assignee: Motorola Solutions, Inc.
    Inventors: Timothy J. Collins, Robert A. Perri
  • Patent number: 7840181
    Abstract: A first bias circuit outputs a first direct-current voltage to charge a first capacitor based on a clock signal. A second bias that outputs a second direct-current voltage to charge a second capacitor based on a clock signal. A first MOS transistor has a gate and a source. The first direct-current voltage is applied between the gate and the source of the first MOS transistor to bias the gate of the first MOS transistor. A second MOS transistor has a gate and a source, and a drain connected to the source of the first MOS transistor. The second direct-current voltage is applied between the gate and the source of the second MOS transistor to bias the gate of the second MOS transistor. A coupling capacitor has a first end connected to the source of the first MOS transistor, and a second end to which an alternating-current signal is input.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: November 23, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshiyuki Umeda, Shoji Ootaka