Patents by Inventor Charles M. Chandler

Charles M. Chandler 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: 11947024
    Abstract: A system and method of the disclosure relates to satellite tracking. The system may comprise a tracking receiver that includes a first analog-to-digital (A/D) converter coupled between a sum input and a digital signal processor (DSP), a second A/D converter coupled between a difference input and the DSP, and a calibration output coupled to the sum input and coupled to the difference input. The first A/D converter may convert an signal received at the sum input into a sum digital signal, and provide the sum digital signal to the DSP. The second A/D converter may convert an signal received at the difference input into a difference digital signal, and provide the difference digital signal to the DSP. The tracking receiver may generate an calibration signal and provide the calibration signal through the calibration output.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: April 2, 2024
    Assignee: Viasat, Inc.
    Inventors: Christopher A. Rose, Brian D. Chandler, David E. Sinyard, Charles M. Luke
  • Publication number: 20190130028
    Abstract: A system having an annotation module that annotates, using a master ontology, unstructured verbatim regarding a product and related issue, and a customer-observable (CO) construction module determining associations amongst terminology in the annotated output, yielding a group of CO pairs. A CO merging module merges at least one first CO pair into a second CO pair based on similarities. A pointwise mutual-information module determines which CO pairs of the group of merged CO pairs are relatively more-severe or more-relevant, yielding a group of critical CO pairs. An output module initiates activity to implement the results, such as by automated repair of the product or change to product design or manufacturing process. The system in some embodiments identifies, using a subject-matter-expert (SME) database, features of false-positive associations, and in machine-learning implements the features to improve CO formation going forward.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 2, 2019
    Inventors: Dnyanesh G. Rajpathak, Susan H. Owen, Joseph A. Donndelinger, John A. Cafeo, Martin Case, Carolyn Nguyen, Charles M. Chandler
  • Patent number: 4084005
    Abstract: Disclosed is a method of controlling the harmful effects of fungus of the genus Fusarium, especially Fusarium oxysporum f. lycopersici, upon plants, especially tomato plants by contacting the plant with bis(4-chlorophenyl)methyl methyl sulfone, prior to infestation by the fungus.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: April 11, 1978
    Assignee: PPG Industries, Inc.
    Inventor: Charles M. Chandler