Patents by Inventor Patrick Fenton

Patrick Fenton 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: 9933263
    Abstract: A system and method for providing location information using a long baseline accelerometer/GNSS system. A first set of accelerometers is operatively associated with the first GNSS antenna while a second set of accelerometers is operatively associated with a second (or more) GNSS antenna. The multiple assemblies are separated by predefined distances and held rigid to each other. Accelerometer data is combined with the GNSS data to provide improved navigation and location information.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: April 3, 2018
    Assignee: NovAtel Inc.
    Inventors: Michael Bobye, Patrick Fenton
  • Publication number: 20170307378
    Abstract: A system and method for providing location information using a long baseline accelerometer/GNSS system. A first set of accelerometers is operatively associated with the first GNSS antenna while a second set of accelerometers is operatively associated with a second (or more) GNSS antenna. The multiple assemblies are separated by predefined distances and held rigid to each other. Accelerometer data is combined with the GNSS data to provide improved navigation and location information.
    Type: Application
    Filed: April 22, 2016
    Publication date: October 26, 2017
    Inventors: Michael Bobye, Patrick Fenton
  • Publication number: 20130171453
    Abstract: A carbon article having a first zone and a second zone wherein in the first zone formed from a first mix design and the second zone formed from a second mix design and the first and second mix designs have at least one difference selected from the group of differences of a presence of a certain material, a concentration of a certain material, the size of the a certain material and combinations thereof.
    Type: Application
    Filed: June 29, 2011
    Publication date: July 4, 2013
    Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.
    Inventors: Kevin Patrick Fenton, Aaron Tomasek, Andrew Justin Francis
  • Publication number: 20080188936
    Abstract: An implant and method for the repair of a tendon or a ligament along at least one load direction. The implant includes at least one first anchor portion and at least one tension member oriented along a load direction. The first anchor portion preferably has a larger surface area of engagement with the tendon or ligament to spread loads across more tissue. The tension member is preferably secured to the first anchor portion with an overlapping attachment. Tension on the tension member is preferably adjustable by the surgeon.
    Type: Application
    Filed: February 4, 2008
    Publication date: August 7, 2008
    Applicant: Tornier, Inc.
    Inventors: Robert J. Ball, Thomas D. Egan, Paul V. Fenton, Kevin L. Ohashi, Dale R. Peterson, Peter Sorenson, Douglas Snell, John Yannone, Patrick Fenton
  • Publication number: 20080094280
    Abstract: An AltBoc receiver accumulates power measurements over code chip ranges that are associated with time slots that span the code chips. The receiver combines a received signal with code and carrier phase offsets that correspond to the time slots to produce the power measurements, with the code phase offsets determined from compressed signals representing one or a combination of the codes in the AltBoc signal. The receiver recovers navigation data from the data channels of the received signal and combines the recovered data with the corresponding locally generated PRN codes to produce a locally generated 4 code signal that is then used track the full 8PSK AltBoc received signal. The receiver rotates and shifts the phase of the received signal in order to line up the subcarrier splitting code zero crossings. The pulse shape of this rotated and shifted signal is measured. The resulting sharp edges of the recovered subcarrier are used to control the code phase of the receiver.
    Type: Application
    Filed: June 1, 2007
    Publication date: April 24, 2008
    Inventor: Patrick Fenton
  • Publication number: 20070268176
    Abstract: A system for determining positions of fixed-position GPS receives that have restricted views of the sky includes a data recording and control center, and one or more base GPS receivers with associated antennas with a substantially unrestricted views of the sky. The system batch processes range information provided by the fixed-position GPS receivers over an extended period of time; determining which of the range data from the fixed-position receivers are valid, and using the valid range data to determine position. In this way, the precise positions of the respective fixed-position slave GPS receivers can be calculated, even if the fixed-position GPS receivers are able to observe and collect data from sets of two or more satellites for only three or four relatively short time intervals at various sky positions during the extended period.
    Type: Application
    Filed: August 8, 2007
    Publication date: November 22, 2007
    Inventor: Patrick Fenton
  • Publication number: 20070213936
    Abstract: A system for analyzing three-dimensional seismic data includes a plurality of digitizer units, each with a configuration of geophones, a data recording and control center, a base GPS receiver with an associated antenna with a substantially unrestricted view of the sky and at the respective digitizer units low-power slave GPS receivers that acquire and track GPS satellite signals using tracking assistance information provided by the base GPS receiver. The slave GPS receivers use the tracking assistance information to acquire and track GPS satellite signals that may be relatively weak at the receivers, due to conditions at the site, such as foliage canopies and so forth. The system processes range information provided by the slave GPS receivers over an extended period of time.
    Type: Application
    Filed: October 2, 2006
    Publication date: September 13, 2007
    Inventors: Patrick Fenton, Norman Heidebrecht
  • Publication number: 20070064776
    Abstract: A receiver for position-determining ranging signals transmitted by earth-orbiting satellites uses a set of accumulators, each of which accumulates signal samples corresponding with a position along the rising edges of incoming PRN pulses. An MMT processor calculates the rising edges of the direct path component of the received signal, selects the accumulator whose content correspond to a reference value related to the pulse height of the direct path component and compares the timing of the samples in that accumulator with the timing of the reference value on a reference pulse.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 22, 2007
    Inventors: Walter Feller, Patrick Fenton, Graham Purves
  • Publication number: 20070058700
    Abstract: A receiver employs a pre-correlation filter to determine the precise timing of, for example, a PRN code on the quadrature channel of a received signal, using an image of the average chip shape that the filter forms for a PRN code on the in-phase channel. The image is expressed as a time series of complex power measurements along the length of a single chip. The averaging process retains the detail of the composite in-phase signal (direct plus multipath signals) while reducing the level of signal noise by an amount proportional to the length of the averaging process. An analysis of the image reveals that there is, in the in-phase channel signal that is averaged, information from the quadrature channel signal. The quadrature channel signal information produces, in the image of the average chip shape of the in-phase channel PRN code, a “wiggle” that corresponds to the timing of the chips of the quadrature channel PRN code.
    Type: Application
    Filed: September 14, 2005
    Publication date: March 15, 2007
    Inventor: Patrick Fenton
  • Publication number: 20060271331
    Abstract: A system for analyzing three-dimensional seismic data includes a plurality of digitizer units, each with a configuration of geophones, a data recording and control center, a base GPS receiver with an associated antenna with a substantially unrestricted view of the sky and at the respective digitizer units low-power slave GPS receivers that acquire and track GPS satellite signals using tracking assistance information provided by the base GPS receiver. The slave GPS receivers use the tracking assistance information to acquire and track GPS satellite signals that may be relatively weak at the receivers, due to conditions at the site, such as foliage canopies and so forth. The system processes range information provided by the slave GPS receivers over an extended period of time.
    Type: Application
    Filed: August 10, 2006
    Publication date: November 30, 2006
    Inventor: Patrick Fenton
  • Publication number: 20060227905
    Abstract: A multi-band receiver for use with satellite ranging systems is provided. The receiver has a simplified architecture in which input signals of various frequencies are multiplexed together to form a single composite analog signal. In accordance with one embodiment of the invention, this composite signal only requires a single RF circuit for down conversion to an intermediate frequency. The composite, downconverted signal is sampled, and the digitized samples are demultiplexed to form digital counterparts of the original signals from each frequency band. An embodiment for use with elements of a phased array antenna is also provided.
    Type: Application
    Filed: April 12, 2005
    Publication date: October 12, 2006
    Inventors: Waldemar Kunysz, Patrick Fenton
  • Publication number: 20050033519
    Abstract: A system for analyzing three-dimensional seismic data includes a plurality of digitizer units, each with a configuration of geophones, a data recording and control center, a base GPS receiver with an associated antenna with a substantially unrestricted view of the sky and at the respective digitizer units low-power slave GPS receivers that acquire and track GPS satellite signals using tracking assistance information provided by the base GPS receiver. The slave GPS receivers use the tracking assistance information to acquire and track GPS satellite signals that may be relatively weak at the receivers, due to conditions at the site, such as foliage canopies and so forth. The system processes range information provided by the slave GPS receivers over an extended period of time.
    Type: Application
    Filed: July 15, 2004
    Publication date: February 10, 2005
    Inventor: Patrick Fenton
  • Patent number: 5809064
    Abstract: A receiver for pseudorandom noise (PRN) encoded signals consisting of a sampling circuit, multiple carrier and code synchronizing circuits, and multiple digital autocorrelators. The sampling circuit provides digital samples of a received composite signal to each of the several receiver channel circuits. The synchronizing circuits are preferably non-coherent, in the sense that they track any phase shifts in the received signal and adjust the frequency and phase of a locally generated carrier reference signal accordingly, even in the presence of Doppler or ionospheric distortion. The autocorrelators in each channel form a delay lock loop (DLL) which correlates the digital samples of the composite signal with locally generated PRN code values to produce a plurality of (early, late), or (punctual, early-minus-late) correlation signals.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: September 15, 1998
    Assignee: NovAtel, Inc.
    Inventors: Patrick Fenton, Albert J. Van Dierendonck
  • Patent number: 5495499
    Abstract: A receiver for pseudorandom noise (PRN) encoded signals consisting of a sampling circuit, multiple carrier and code synchronizing circuits, and multiple digital autocorrelators. The sampling circuit provides digital samples of a received composite signal to each of the several receiver channel circuits. The synchronizing circuits are preferably non-coherent, in the sense that they track any phase shifts in the received signal and adjust the frequency and phase of a locally generated carrier reference signal accordingly, even in the presence of Doppler or ionospheric distortion. The autocorrelators in each channel form a delay lock loop (DLL) which correlates the digital samples of the composite signal with locally generated PRN code values to produce a plurality of (early, late), or (punctual, early-minus-late) correlation signals.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: February 27, 1996
    Assignee: NovAtel Communications, Ltd.
    Inventors: Patrick Fenton, Albert J. Van Dierendonck
  • Patent number: 5414729
    Abstract: A receiver for pseudorandom noise (PRN) encoded signals consisting of a sampling circuit, multiple carrier and code synchronizing circuits, and multiple digital correlators. The sampling circuit provides digital samples of a received composite signal to each of the several receiver channel circuits. The synchronizing circuits are preferably non-coherent, in the sense that they track any phase shifts in the received signal and adjust the frequency and phase of a locally generated carrier reference signal accordingly, even in the presence of Doppler or ionospheric distortion. The multiple correlators in each channel correlates the digital samples with locally generated PRN codes having multiple offsets, to produce a plurality of correlation signals. The plurality of correlation signals are fed to a parameter estimator, from which the delay and phase parameters of the direct path signal, as well as any multipath signals, may be estimated, and from which a range measurement may be corrected.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: May 9, 1995
    Assignee: NovAtel Communications Ltd.
    Inventor: Patrick Fenton
  • Patent number: 5390207
    Abstract: A receiver for pseudorandom noise (PRN) encoded signals consisting of a sampling circuit, multiple carrier and code synchronizing circuits, and multiple digital autocorrelators. The sampling circuit provides digital samples of a received composite signal to each of the several receiver channel circuits. The synchronizing circuits are preferably non-coherent, in the sense that they track any phase shifts in the received signal and adjust the frequency and phase of a locally generated carrier reference signal accordingly, even in the presence of Doppler or ionospheric distortion. The autocorrelators in each channel form a delay lock loop (DLL) which correlates the digital samples of the composite signal with locally generated PRN code values to produce a plurality of (early, late), or (punctual, early-minus-late) correlation signals. Thus, during an initial acquisition mode, the delay spacing is relatively wide, on the order of approximately one PRN code chip time.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: February 14, 1995
    Assignee: NovAtel Communications Ltd.
    Inventors: Patrick Fenton, Albert J. Van Dierendonck
  • Patent number: 5101416
    Abstract: A receiver for pseudorandom noise (PRN) encoded signals consisting of a sampling circuit and multiple channel circuits, with each channel circuit including a carrier and code synchronizing circuit and multiple digital correlators with dynamically adjustable code delay spacing. The sampling circuit provides high-rate digital samples of the incoming composite signal to each receiver channel. Within each channel, the synchronizing circuit detects cycle slips in a locally generated carrier reference signal as well as phase drift in a locally generated PRN code signal. The correlators compare the digital samples with a locally generated PRN code to produce early, late, and/or punctual correlation signals which are used to adjust the local PRN code. A non-linear sampling technique may be used to provide increased sensitivity in the presence of continuous wave interfering signals.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: March 31, 1992
    Assignee: NovAtel Comunications Ltd.
    Inventors: Patrick Fenton, Kwok-Ki K. Ng, Thomas J. Ford