Patents by Inventor Thomas J. Ford

Thomas J. Ford 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: 7528770
    Abstract: A system consisting of a base GPS receiver with a clear view of the sky, one or more remote GPS receivers with restricted views of the sky and a processing center that batch processes range information provided by the GPS receivers determines the positions of the remote GPS receivers to within tight tolerances. The base GPS receiver and the remote GPS receivers produce range information based on the satellite signals that the respective receivers can track at a given time, and provide the range information to the processing center. The range information includes both code and carrier measurements for each of the signals that are being tracked by the respective GPS receivers. The center collects the range information over an extended period of time, for example, hours, days or weeks, and then batch processes the collected information in multiple passes through the data, to calculate the precise latitude, longitude and height of the receiver.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: May 5, 2009
    Assignee: NovAtel Inc.
    Inventors: Thomas J. Ford, Sandy Kennedy
  • Patent number: 6728637
    Abstract: A track model is created for use with a GPS receiver. In one embodiment, the track model is a set of planar surfaces which approximate the contiguous surface on which navigation takes place. The GPS receiver searches for an appropriate planar surface associated with its approximate position. Having found the appropriate planar surface, the GPS receiver constrains its position using the planar surface associated with its approximate position. Using the track model improves the accuracy of the computed position at the time and improves the ambiguity estimation process so that positions with greatly improved accuracy are available sooner.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: April 27, 2004
    Assignee: Sportvision, Inc.
    Inventors: Thomas J. Ford, Patrick C. Fenton, James O. McGuffin, Stanley K. Honey
  • Publication number: 20030036849
    Abstract: A track model is created for use with a GPS receiver. In one embodiment, the track model is a set of planar surfaces which approximate the contiguous surface on which navigation takes place. The GPS receiver searches for an appropriate planar surface associated with its approximate position. Having found the appropriate planar surface, the GPS receiver constrains its position using the planar surface associated with its approximate position. Using the track model improves the accuracy of the computed position at the time and improves the ambiguity estimation process so that positions with greatly improved accuracy are available sooner.
    Type: Application
    Filed: September 20, 2002
    Publication date: February 20, 2003
    Inventors: Thomas J. Ford, Patrick C. Fenton, James O. McGuffin, Stanley K. Honey
  • Publication number: 20020107636
    Abstract: A track model is created for use with a GPS receiver. In one embodiment, the track model is a set of planar surfaces which approximate the contiguous surface on which navigation takes place. The GPS receiver searches for an appropriate planar surface associated with its approximate position. Having found the appropriate planar surface, the GPS receiver constrains its position using the planar surface associated with its approximate position. Using the track model improves the accuracy of the computed position at the time and improves the ambiguity estimation process so that positions with greatly improved accuracy are available sooner.
    Type: Application
    Filed: June 22, 2001
    Publication date: August 8, 2002
    Inventors: Thomas J. Ford, Patrick C. Fenton, James O. McGuffin, Stanley K. Honey
  • Patent number: 6211821
    Abstract: A navigational apparatus includes a receiver, two antennas, and a computational unit to receive satellite positional signals and provides corrected position, azimuth, and pitch readings. The computational unit: determines differences in the signal carrier measurements output by the receiver; rejects or accepts carrier ambiguity candidates based on predefined criteria; and estimates multipath on successive pairs of carrier observations to obtain the corrected readings.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: April 3, 2001
    Assignee: NovAtel, Inc.
    Inventor: Thomas J. Ford
  • Patent number: 6099719
    Abstract: A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by solvent extracting a feedstock to produce a raffinate, solvent dewaxing the raffinate, selectively hydroconverting the solvent dewaxed raffinate in a two step hydroconversion zone followed by a hydrofinishing zone and a dewaxing zone.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: August 8, 2000
    Assignee: Exxon Research and Engineering Company
    Inventors: Ian A. Cody, William J. Murphy, Thomas J. Ford
  • Patent number: 5995044
    Abstract: A GPS receiver embodying the invention includes a first channel that preferentially processes line-of-sight signals and a second channel that preferentially processes multipath signals. It then compares the results to determine if the multipath has degraded the results of the processing of the line-of-sight signals.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: November 30, 1999
    Assignee: NovAtel, Inc.
    Inventors: Waldemar Kunysz, Thomas J. Ford, Janet Neumann
  • Patent number: 5977425
    Abstract: It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst said mixture of powdered catalysts being formed into a discrete particle.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: November 2, 1999
    Assignee: Exxon Research and Engineering Co
    Inventors: Dee A. Brandes, David N. Zinkie, Sandra Jane Alward, William J. Murphy, Ian A. Cody, Thomas J. Ford
  • Patent number: 5734674
    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 antocorrelators 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: October 2, 1996
    Date of Patent: March 31, 1998
    Assignee: NovAtel Inc.
    Inventors: Patrick C. Fenton, Thomas J. Ford
  • Patent number: 5659895
    Abstract: A stress transfer garment for an individual in a low gravity environment to minimize bone deconditioning and the migration of fluids to the torso. The garment includes members made of elastic or resilient material which cover the torso and multiple limbs. The members extend down the long axis of the body, with each member interlaced with the member on each side at least once to form a mesh-like structure. The garment is fitted for an individual in a first position, preferably the fetal position. Any movement by a part of the body covered by the members from the fetal position, stretches those members. The stretched members deliver a physical strain along the long axis of the body to the underlying bone structure. The garment may also be designed to deliver a physical strain across the short axis of the body which is greater across the torso than the limbs and is sufficient to prevent body fluids from the limbs from migrating to the torso. The garment may be formed as a one-piece or two-piece garment.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: August 26, 1997
    Inventor: Thomas J. Ford, Jr.
  • Patent number: 5459122
    Abstract: An aromatic oil having an aniline point less than 120.degree. F., a mutagenicity index based on The Modified Ames Test of less than 2.0, a benzene, naphthalene and methyl substituted benzenes and naphthalenes individual component concentrations less than 100 wppm, and a clay gel aromatics fraction content of at least 50 weight % based on aromatic oil, said aromatics fraction characterized in that it has a naphthene-benzenes and dinaphthenebenzenes content of at least 50 volume % based on aromatics fraction. The invention also relates to a process for preparing the aromatic oil which comprises the steps of selective solvent extraction, selective distillation and two-stage hydrotreating with removal of hydrogen sulfide and/or ammonia. The aromatic oils are useful in agricultural formulations due to their low environmental impacts.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: October 17, 1995
    Assignee: Exxon Research & Engineering Co.
    Inventors: Thomas J. Ford, Gilbert V. Chambers
  • Patent number: 5146675
    Abstract: A cylindrical roller apparatus for a glass tempering oven comprises a ceramic roller having a first end portion and a second end portion, a flat formed on each end portion of the roller, an end cap having a cylindrical wall mounted on each end portion of the roller, a metal retaining plate positioned on each flat, and a screw threaded through each end cap wall that screws into contact with the retaining plate for securing each end cap to the roller and for pushing the roller flush against the inner surface of the end cap wall. An acess hole can be provided in the end cap for welding together the screw, retaining plate, and end cap. Grooves can also be formed on the inner surface of the end cap, accessible through an opening formed through the end cap, to allow injection of adhesive between the roller and end cap to further secure the two together.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: September 15, 1992
    Assignee: George Ford & Sons, Inc.
    Inventors: George Ford, Richard G. Ford, Thomas J. Ford
  • 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
  • Patent number: 4945520
    Abstract: A passive hydro-acoustic device for warning sea mammals away from shallow areas consisting of an anchor linearly arranged in front of a shallow area and a plurality of cables attached to the anchor at predefined intervals and extending substantially perpendicular therefrom and sonar reflecters affixed to each of the cables.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: July 31, 1990
    Inventor: Thomas J. Ford
  • Patent number: 4547934
    Abstract: Process and apparatus are provided for the preparation of crimped staple fibers. By automatically adjusting the pressure on the stuffer crimper box discharge means as a function of staple cutter speed, a crimped staple product with uniform fiber-to-fiber cohesion level is obtained.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: October 22, 1985
    Assignee: Phillips Petroleum Company
    Inventor: Thomas J. Ford