Patents by Inventor Alexandre Dupuy

Alexandre Dupuy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9037190
    Abstract: A dynamically tuned repeater system for improved communication system performance is disclosed. The repeater circuit consists of power amplifiers, low noise amplifiers, filters, switches and antennas along with tuning circuits integrated and controlled to provide an optimized system for RF transmission improvement. Dynamic tuning provides the ability to maintain optimized system performance as required by communication link characteristics. Inputs from proximity sensors are used to further optimize system performance. The repeater topology is capable of transmission and reception enhancement at a multitude of frequency bands.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: May 19, 2015
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Sebastian Rowson, Jeffrey Shamblin, Alexandre Dupuy
  • Patent number: 8995936
    Abstract: A communication system is provided, including an antenna, a PA, a linearization circuit to enhance linearity, a filter system, and a controller. The controller is configured to receive information on the signals and conditions, and based on the information the controller controls one or more of the antenna, the PA, the linearization circuit and the filter system to provide an optimum configuration to meet specifications of signal properties under the conditions. The controller may look up a registry having entries regarding the specifications of signal properties under conditions in terms of predetermined parameters.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: March 31, 2015
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Alexandre Dupuy
  • Publication number: 20150070058
    Abstract: A logarithmic detector amplifying (LDA) system is provided for use as a high sensitivity receive booster or replacement for a low noise amplifier in a receive chain of a communication device. The LDA system includes an amplifying circuit configured to receive an input signal having a first frequency and generate an oscillation based on the input signal, a sampling circuit coupled to the amplifying circuit and configured to terminate the oscillation based on a predetermined threshold to periodically clamp and restart the oscillation to generate a series of pulses modulated by the oscillation and by the input signal, and one or more resonant circuits coupled with the amplifying circuit and configured to establish a frequency of operation and to generate an output signal having a second frequency, the second frequency being substantially the same as the first frequency.
    Type: Application
    Filed: March 17, 2014
    Publication date: March 12, 2015
    Inventors: Patrick Antoine Rada, Forrest James Brown, Alexandre Dupuy
  • Publication number: 20150070093
    Abstract: A logarithmic detector amplifying (LDA) system is provided for use as a high sensitivity receive booster or replacement for a low noise amplifier in a receive chain of a communication device. The LDA system includes an amplifying circuit configured to receive an input signal having a first frequency and generate an oscillation based on the input signal, a sampling circuit coupled to the amplifying circuit and configured to terminate the oscillation based on a predetermined threshold to periodically clamp and restart the oscillation to generate a series of pulses modulated by the oscillation and by the input signal, and one or more resonant circuits coupled with the amplifying circuit and configured to establish a frequency of operation and to generate an output signal having a second frequency, the second frequency being substantially the same as the first frequency.
    Type: Application
    Filed: March 14, 2014
    Publication date: March 12, 2015
    Applicant: DockOn AG
    Inventors: Patrick Antoine Rada, Forrest James Brown, Alexandre Dupuy
  • Publication number: 20150023645
    Abstract: The fiber optic assembly can include two fiber optic breadboards hinged to one another along a coinciding hinge axis. Each one of the fiber optic breadboards can have a flat body having two faces and lateral edges, one of which running alongside the hinge axis, and can have a tessellation of tray locations each having a tray attachment. The fiber optic assembly can also include a plurality of fiber optic trays each having a body having a base attachable to at least one of said tray attachments, the body having a size and shape associated to one of a single one of said tray locations and a plurality of adjacent ones of said tray locations on one of said at least one fiber optic breadboards, and having a structure by which an optical fiber having a critical radius of curvature can be confined within at least one optical fiber path.
    Type: Application
    Filed: February 28, 2013
    Publication date: January 22, 2015
    Inventors: Johannes Sander Boelen, Francois-Xavier Bertrand, Bryan Burgoyne, Alexandre Dupuis, Isabelle Gelinas
  • Publication number: 20140287704
    Abstract: Logarithmic Detector Amplifiers (LDAs), multiple antennas, active antennas, and multiple active antennas and receivers are provided in a variety of configurations that are synchronized to reduce or eliminate interference so at to provide, a greater range and bandwidth between wireless routers and their clients in WLAN and WAN environments.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 25, 2014
    Inventors: Alexandre Dupuy, Patrick Rada, Forrest Brown
  • Publication number: 20140266420
    Abstract: A logarithmic amplifier (LDA) is described that includes an amplifier configured to oscillate a modulated input signal, a feedback establishing a 180 degree phase shift between the amplifier input and the output and maintaining oscillation of the input signal, a parallel resonant circuit connected to the amplifier output causing the amplifier to resonate at or around a center frequency, and a controller connected to the amplifier input cyclically terminating oscillation of the input signal each time a pre-determined threshold of current is detected, the controller including a low pass filter configured to generate a second output signal having a repetition frequency. The LDA may be used for AM with or without a PLL and/or a superhetrodyne. The LDA may be implemented as a mixer and used for phase demodulation. The LDA may be used for phase demodulation. The LDA may be used in place of a low noise amplifier.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Forrest Brown, Patrick Rada, Alexandre Dupuy
  • Publication number: 20140269860
    Abstract: Systems and methods for improving data communication over less than perfect power lines or transmission lines are described. The systems and methods allow for pushing out electrically any null within a frequency range of interest and/or for lossless transmission by providing impedance matching between communication devices and the transmission line. This is achieved by implementing line equalizing modules within the transceivers, at the transmitter side and/or the receiver side, or by plugging, as a stand-alone module, into an electrical outlet within a building. The line equalizing module includes multiple inductor-capacitor cells coupled in cascade where multiple switches allow for selective and concurrent connection between the inductor-capacitor cells. In another embodiment, the line equalizing module includes variable inductor-capacitor cells. The line equalizing module provides a variable propagation delay that allows for stretching electrically the transmission line.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Dockon AG
    Inventors: Forrest Brown, Alexandre Dupuy, Patrick Rada
  • Publication number: 20140273898
    Abstract: A regenerative selective logarithmic detector amplifier (LDA) can have integrated FM demodulation capabilities. It can receive a wired or wireless FM modulated signal and amplify or demodulate it with high sensitivity, high skirt ratio and minimized noise when compared to the prior art. When used in conjunction with other circuits such as a PLL or mixer, it can improve interference rejection and frequency selectivity and be locked on a precise channel in frequency and phase. The LDA produces intermittent oscillations that are self-quenched when reaching a given threshold. It also embeds the circuitry to perform direct FM discrimination. FM demodulation process is completed by a simple analog or digital frequency to voltage converter. This plus the fact that the instantaneous regeneration gain is low-medium permit to detect signals of small amplitudes buried in the noise.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Forrest Brown, Patrick Rada, Alexandre Dupuy
  • Publication number: 20140266962
    Abstract: An N-way radio frequency (RF) divider/combiner is formed as a combination including an input port electrically coupled to a first 2-way divider/combiner and a second 2-way divider/combiner. An antenna may be coupled to at least one port of the N-way divider. The antenna may be formed as a compound printed loop (CPL) antenna. The N-way RF divider/combiner may be configured to provide N inputs and M output ports, wherein N and M are integers and any of the M output ports and N input ports can be connected to any combinations of devices. Such devices may include, e.g., an antenna including but not limited to a CPL antenna, RF receive port, transmit port, amplifier, RF switch, low noise amplifier (LNA), oscillator, tuning circuit, matching circuit, lumped element circuit, active circuit, diode, adjustable inductive circuit, and adjustable capacitive circuit.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: DockOn AG
    Inventors: Alexandre Dupuy, Forrest Brown, Patrick Rada
  • Patent number: 8786383
    Abstract: A wireless device having a CRLH structure incorporates a power combiner/divider and diplexer. In one embodiment, circuit parameters are selected to achieve impedance matching using a transmission line structure.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: July 22, 2014
    Assignee: Hollinworth Fund L.L.C.
    Inventor: Alexandre Dupuy
  • Publication number: 20140170994
    Abstract: A switch is provided, the switch including one or more banks of transistors fabricated on a substrate, wherein body terminals of the transistors in each bank are configured to be individually controlled to have respective body voltages. The values of the body voltages are determined to provide optimum linearity of power transfer by changing properties of the substrate with respect to the properties of the substrate when the body voltages are commonly biased at a value.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 19, 2014
    Applicant: ETHERTRONICS, Inc.
    Inventors: Alexandre Dupuy, Laurent Desclos
  • Patent number: 8704593
    Abstract: Power amplifying systems and modules and components therein are designed based on CRLH structures, providing high efficiency and linearity.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: April 22, 2014
    Assignee: Hollinworth Fund, L.L.C.
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • Publication number: 20140028401
    Abstract: Power amplifying systems and modules and components therein are designed based on CRLH structures, providing high efficiency and linearity.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 30, 2014
    Applicant: Hollinworth Fund, L.L.C.
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • Patent number: 8588114
    Abstract: In one embodiment, a differential power amplifier structure includes a transceiver module supporting multiple frequency band signals, a plurality of power amplifiers coupled to the transceiver module, each of the plurality of power amplifiers having at least two outputs having 180° phase offset therebetween, and a plurality of filters coupled to the plurality of power amplifiers.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: November 19, 2013
    Assignee: Hollinworth Fund, L.L.C.
    Inventors: Alexandre Dupuy, Can Zheng
  • Patent number: 8576004
    Abstract: Power amplifying systems and modules and components therein are designed based on CRLH structures, providing high efficiency and linearity.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: November 5, 2013
    Assignee: Hollinworth Fund L.L.C.
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • Publication number: 20130285873
    Abstract: A communication system is provided, including one or more antennas coupled to multiple RF paths, one or more matching blocks, each block including multiple matching networks, a look-up table including characterization data according to frequency bands and conditions, and a controller configured to control the multiple matching networks by referring to the look-up table to provide optimum impedance for a frequency band selected and a condition detected during a time interval. The matching block may further include switches and adjustment circuits.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 31, 2013
    Applicant: ETHERTRONICS, INC.
    Inventors: Alexandre Dupuy, Laurent Desclos
  • Publication number: 20130278477
    Abstract: A communication system is provided, including an antenna coupled to multiple RF paths, one or more matching networks, multiple switches, a controller configured to control the one or more matching networks and the multiple switches, and a look-up table coupled to the controller, the look-up table including characterization data according to frequency bands and conditions. The multiple switches are controlled to engage the signal path corresponding to the frequency band selected. The one or more matching networks are controlled by the controller to provide optimum impedance for the frequency band selected and a condition detected during a time interval with reference to the look-up table. Additional switches may be included to improve isolation.
    Type: Application
    Filed: December 17, 2012
    Publication date: October 24, 2013
    Applicant: ETHERTRONICS, Inc.
    Inventors: Alexandre Dupuy, Laurent Desclos
  • Publication number: 20130149957
    Abstract: A dynamically tuned repeater system for improved communication system performance is disclosed. The repeater circuit consists of power amplifiers, low noise amplifiers, filters, switches and antennas along with tuning circuits integrated and controlled to provide an optimized system for RF transmission improvement. Dynamic tuning provides the ability to maintain optimized system performance as required by communication link characteristics. Inputs from proximity sensors are used to further optimize system performance. The repeater topology is capable of transmission and reception enhancement at a multitude of frequency bands.
    Type: Application
    Filed: June 14, 2012
    Publication date: June 13, 2013
    Applicant: ETHERTRONICS, INC
    Inventors: Laurent Desclos, Sebastian Rowson, Jeffrey Shamblin, Alexandre Dupuy
  • Patent number: 8451175
    Abstract: Techniques, antenna systems and apparatus based on composite right and left handed (CRLH) metamaterial (MTM) structures to couple CRLH MTM circuits to transistors to amplify signals in wireless RF receivers and transmitters.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: May 28, 2013
    Assignee: Tyco Electronics Services GmbH
    Inventors: Ajay Gummalla, Cheng-Jung Lee, Alexandre Dupuy, Maha Achour