Patents by Inventor Keith A. Fredericks

Keith A. Fredericks 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).

  • Publication number: 20230092057
    Abstract: Dynamic data tiling is provided. In various embodiments, a request is received for a tile of geographic data from a requestor. The request specifies a region relative to a projection. The region is looked up in a spatial index to determine one or more source tiles. The spatial index corresponds to the projection and the one or more source tiles intersecting the region. The one or more source tiles are requested from a proxy. The proxy is configured to maintain one or more persistent connections to one or more datastores and to retrieve the one or more source tiles via the one or more persistent connections. The one or more source tiles is received from the proxy. The requested tile of geographic data is constructed from the one or more source tiles. The requested tile of geographic data is provided to the requestor.
    Type: Application
    Filed: November 1, 2022
    Publication date: March 23, 2023
    Inventors: Christopher Edward Holden, Keith Frederick Ma, Jacob Samuel McDonald
  • Publication number: 20220180526
    Abstract: Imagery-based boundary identification for agricultural fields is provided. In various embodiments, a time series of surface reflectance rasters for a geographic region is received. For each of the surface reflectance rasters, at least one index raster is determined, yielding at least one time series of index rasters. The at least one time series of index rasters is divided into a plurality of consecutive time windows. The at least one time series of index rasters is composited within each of the plurality of time windows, yielding a composite index raster for each of the at least one time series of index rasters in each of the plurality of time windows. The composite index rasters are segmented into a plurality of spatially compact regions of the geographic region. A plurality of polygons is generated from the plurality of spatially compact regions, each of the plurality of polygons corresponding to an agricultural field in the geographic region.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 9, 2022
    Inventors: Bobby Harold Braswell, Tina A. Cormier, Damien Sulla-Menashe, Keith Frederick Ma
  • Publication number: 20130088569
    Abstract: The APPARATUSES, METHODS AND SYSTEMS FOR PROVISION OF 3D CONTENT OVER A COMMUNICATION NETWORK (“3D-WCP”) implement on-demand client-independent network streaming of three-dimensional (“3D”) media content. In one embodiment, a 3D media streaming processor-implemented method is disclosed, comprising: obtaining a three-dimensional display media object encoded in a camera-dependent media format; transcoding via a processor the obtained display media object into a transcoded three-dimensional display media object encoded in a device-independent scalable media format; obtaining a request for the transcoded three-dimensional display media object from a client device; and streaming the transcoded three-dimensional display media object to the client device.
    Type: Application
    Filed: October 10, 2011
    Publication date: April 11, 2013
    Applicant: GLOBAL DEVELOPMENT HOLDING LTD.
    Inventor: Keith Fredericks
  • Publication number: 20090216468
    Abstract: A multimode network analyzer (VNA) and the method of using the same are disclosed. The VNA includes a signal input port that receives a test signal, an LO signal generator, a mixer, an IF filter and a processor. The LO signal generator generates a mixer LO signal from a mixer input test signal, the LO signal generator having first and second modes. The mixer LO signal is substantially a first periodic signal in the first mode and a second periodic signal having a plurality of harmonically related tones in the second mode. The mode that is currently operative is determined by a mixer control signal. The mixer is driven by the LO signal and has an output that is filtered by the IF filter to generate an IF signal. The processor analyzes the IF signal to determine a parameter characterizing the test signal and outputs that parameter.
    Type: Application
    Filed: February 21, 2008
    Publication date: August 27, 2009
    Inventor: Keith Frederick Anderson
  • Patent number: 7537744
    Abstract: An improved process for ammonia recovery is provided for the recovery of substantially pure ammonia for use in industrial processes. In this improved method, specific raw materials and/or specific materials of construction are used. Overall efficiency and operational cost savings are increased as a result of the process of the present invention.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: May 26, 2009
    Assignee: Rohm and Haas Company
    Inventors: Abraham Benderly, Keith Frederick Briegel, Michael Stanley DeCourcy, Ronald Eugene Myers
  • Publication number: 20090084667
    Abstract: A process is provided herein for the high yield production of high purity glacial methacrylic acid (“HPMAA”) that is substantially pure, specifically 99% pure or greater with a water content of 0.05% or less.
    Type: Application
    Filed: February 7, 2008
    Publication date: April 2, 2009
    Inventors: Keith Frederick Briegel, James Clarence Day, Michael Stanley DeCourcy, Donald Alan Ebert, Jamie Jerrick John Juliette
  • Publication number: 20080268501
    Abstract: An expression cassette for expressing a nucleic acid of interest derived from the regulatory region of the methylenomycin gene cluster of the SCP1 plasmid of Streptomyces coelicolor A3(2), and related materials and methods.
    Type: Application
    Filed: December 20, 2007
    Publication date: October 30, 2008
    Inventors: Keith Frederick Chater, Celia Joyce Bruton, Sean Joseph O'Rourke, Andreas Wilhelm Wietzorrek
  • Patent number: 7316914
    Abstract: An expression cassette for expressing a nucleic acid of interest derived from the regulatory region of the methylenomycin gene cluster of the SCP1 plasmid of Streptomyces coelicolor A3(2), and related materials and methods.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: January 8, 2008
    Assignee: Plant Bioscience Limited
    Inventors: Keith Frederick Chater, Celia Joyce Bruton, Sean Joseph O'Rourke, Andreas Wilhelm Wietzorrek
  • Patent number: 7252138
    Abstract: A method and apparatus for the repair of damaged tubes, such as heat exchanger tubes, comprising inserting a flow through plug into the damaged heat exchanger tube. The flow through plug is tapered and creates a press fit when inserted within the heat exchanger tube. The flow through plug has an aperture along its axis, thus allowing for flow lengthwise through the flow through plug.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: August 7, 2007
    Assignee: Rohm and Haas Company
    Inventors: Larry Junior Burkhalter, Michael Stanley DeCourcy, Stephan Kenneth Weinberg, Keith Frederick Briegel
  • Patent number: 7128813
    Abstract: A process for the high yield production of high purity glacial methacrylic acid (“HPMAA”) with minimization of decomposition of hydroxy isobutyric acid (HIBA). The HPMAA is substantially pure, specifically 99% pure or greater with a water content of 0.05% or less. This improved process involves the steps of providing a crude MAA stream which was formed by hydrolyzing acetone cyanohydrin and, therefore, includes HIBA which is an intermediate product of the hydrolysis reaction, and purifying that crude methacrylic acid stream in a series of successive distillation steps.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: October 31, 2006
    Assignee: Rohm and Haas Company
    Inventors: Keith Frederick Briegel, James Clarence Day, Michael Stanley DeCourcy, Donald Alan Ebert, Jamie Jerrick John Juliette
  • Patent number: 7099417
    Abstract: A filter that includes an analyzer, thresholding circuit, and synthesizer. The analyzer generates a low-frequency component signal and a high-frequency component signal from an input signal. The thresholding circuit generates a processed high-frequency signal from the high-frequency component signal, the processed high-frequency signal having an amplitude of zero in those regions in which the high-frequency component signal has an amplitude that is less than a threshold value. The synthesizer generates a filtered signal from input signals that include the low-frequency component signal and the processed high-frequency signal. The filtered signal is identical to the input signal if the threshold value is zero. The analyzer is preferably constructed from a plurality of finite impulse response filters that operate on a small fraction of the input signal at a time.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: August 29, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Erwin Frederick Siegel, Keith Frederick Anderson
  • Patent number: 7089714
    Abstract: A method and apparatus for forming void-fill packaging wherein a tubular plastics material (11) is periodically fed via driver rollers (15) along a longitudinal guide path (12), first and second transverse spaced parallel heat seals are formed substantially across the plastics material via a transverse heat sealer (36, 38) to define a chamber (104) between the seals, a fluid is discharged into the chamber via a nozzle (20) positioned along the guide path and adapted to extend inside the tubular plastics material adjacent to one longitudinal edge of the plastic material, a third heat seal is formed via a longitudinal heat sealer (78) to seal the chamber (104), and the longitudinal edge of the tubular plastic material is cut via a cutting element (22) so that the movement of the tubular plastics material is not hindered by the nozzle.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: August 15, 2006
    Assignee: Green Light Packaging Limited
    Inventor: Keith Frederick Thomas
  • Publication number: 20060096736
    Abstract: A method and apparatus for the repair of damaged tubes, such as heat exchanger tubes, comprising inserting a flow through plug into the damaged heat exchanger tube. The flow through plug is tapered and creates a press fit when inserted within the heat exchanger tube. The flow through plug has an aperture along its axis, thus allowing for flow lengthwise through the flow through plug.
    Type: Application
    Filed: August 1, 2005
    Publication date: May 11, 2006
    Inventors: Larry Junior Burkhalter, Michael Stanley DeCourcy, Stephan Kenneth Weinberg, Keith Frederick Briegel
  • Patent number: 6861846
    Abstract: A distortion measurement method uses alternative measurements to determine the distortion of a DUT, depending on the ratio of the distortion at an output of the DUT to distortion of a source stimulating the DUT. The method includes calibrating the VNA at a distortion frequency, measuring a first gain of the DUT with the source and the receivers of the VNA set to the distortion frequency, and measuring a second gain of the DUT with the source of the VNA set to a fundamental frequency and the receivers of the VNA set to the distortion frequency. When the second gain is less than a predesignated threshold, a match-corrected source signal is acquired and used with the first gain and the second gain to determine the distortion of the DUT. When the second gain is not less than the predesignated threshold, a match-corrected DUT output signal is measured and used with the first gain and the second gain to determine the distortion of the DUT.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: March 1, 2005
    Assignee: Agilent Technologies, Inc.
    Inventor: Keith Frederick Anderson
  • Patent number: 6832576
    Abstract: The current invention reveals equipment and the method to utilize it to reduce or eliminate seal deposition in equipment that uses inflatable seals where a solution can come into contact with the seal and leave a deposit. Typical of this process is the coating chamber used to prepare honeycomb substrate for catalytic converters. For catalytic converter coating, the invention sprays the solvent of the coating solution, typically water, in a flat fan spray across the coating chamber in a high pressure pulse in such a manner as to produce a thin film of water on the seal surface, and reflect from the seal surface to clean multiple seals within the chamber. The film of water removes deposits, interferes with further nucleation, and the wet seal forms a tighter seal with less pressure. Water is pulsed with a metering pump through rigid or semi-rigid tubing to fixed spray nozzles when the substrate is removed from the coating chamber. The pulse takes less than 1 second.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: December 21, 2004
    Inventor: Keith Frederick Feather
  • Publication number: 20040113632
    Abstract: A distortion measurement method uses alternative measurements to determine the distortion of a DUT, depending on the ratio of the distortion at an output of the DUT to distortion of a source stimulating the DUT. The method includes calibrating the VNA at a distortion frequency, measuring a first gain of the DUT with the source and the receivers of the VNA set to the distortion frequency, and measuring a second gain of the DUT with the source of the VNA set to a fundamental frequency and the receivers of the VNA set to the distortion frequency. When the second gain is less than a predesignated threshold, a match-corrected source signal is acquired and used with the first gain and the second gain to determine the distortion of the DUT. When the second gain is not less than the predesignated threshold, a match-corrected DUT output signal is measured and used with the first gain and the second gain to determine the distortion of the DUT.
    Type: Application
    Filed: December 16, 2002
    Publication date: June 17, 2004
    Inventor: Keith Frederick Anderson
  • Publication number: 20040086962
    Abstract: An expression cassette for expressing a nucleic acid of interest derived from the regulatory region of the methylenomycin gene cluster of the SCP1 plasmid of Streptomyces coelicolor A3(2), and related materials and methods.
    Type: Application
    Filed: October 25, 2002
    Publication date: May 6, 2004
    Inventors: Keith Frederick Chater, Celia Joyce Bruton, Sean Joseph O'Rourke
  • Publication number: 20030205451
    Abstract: A process is provided herein for the high yield production of high purity glacial methacrylic acid (“HPMAA”) that is substantially pure, specifically 99% pure or greater with a water content of 0.05% or less.
    Type: Application
    Filed: April 22, 2003
    Publication date: November 6, 2003
    Inventors: Keith Frederick Briegel, James Clarence Day, Michael Stanley DeCourcy, Donald Alan Ebert, Jamie Jerrick John Juliette
  • Publication number: 20030123584
    Abstract: A filter that includes an analyzer, thresholding circuit, and synthesizer. The analyzer generates a low-frequency component signal and a high-frequency component signal from an input signal. The thresholding circuit generates a processed high-frequency signal from the high-frequency component signal, the processed high-frequency signal having an amplitude of zero in those regions in which the high-frequency component signal has an amplitude that is less than a threshold value. The synthesizer generates a filtered signal from input signals that include the low-frequency component signal and the processed high-frequency signal. The filtered signal is identical to the input signal if the threshold value is zero. The analyzer is preferably constructed from a plurality of finite impulse response filters that operate on a small fraction of the input signal at a time.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 3, 2003
    Inventors: Erwin Frederick Siegel, Keith Frederick Anderson
  • Publication number: 20020146363
    Abstract: An improved process for ammonia recovery is provided for the recovery of substantially pure ammonia for use in industrial processes. In this improved method, specific raw materials and/or specific materials of construction are used. Overall efficiency and operational cost savings are increased as a result of the process of the present invention.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 10, 2002
    Inventors: Abraham Benderly, Keith Frederick Briegel, Michael Stanley DeCourcy, Ronald Eugene Myers