Patents by Inventor Daniel Joseph Hernandez

Daniel Joseph Hernandez 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: 11513479
    Abstract: A method for automating system identification includes performing a system identification experiment, and performing a system identifying processing by fitting a model to data from the system identification experiment. The method also includes performing model reduction to generate a model numerically suitable for controller synthesis by removing inconsequential states that cause controller optimization methods to fail. The method further includes performing control synthesis using the generated model or reduced models, including disturbance spectrum estimates, to generate a candidate controller design to be used during system operation. The method also includes checking for controller robustness using the identified model to ensure stability of the system while maximizing closed-loop bandwidth and performance.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: November 29, 2022
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Daniel Joseph Hernandez, Mitchel John Craun, Evan Nathan Sperber, Richard Yining Chiang, Nicholas Akira Oune
  • Patent number: 6970415
    Abstract: A method and apparatus for identification of interference sources are disclosed.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: November 29, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Cecilia Gabriela Galarza, Michail Tsatsanis, Mark Alan Erickson, Ioannis Kanellakopoulos, James W. Waite, Ming Gu, Sunil C. Shah, Daniel Joseph Hernandez, Thomas E. Paré, Jr., Norman Man Leung Yuen
  • Patent number: 6834109
    Abstract: The present invention includes a method and system for compensating for cross-talk interference in communication systems. The method includes estimation of the interfering signals. Further, the method includes performing a compensation operation on at least one interfering signal.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: December 21, 2004
    Assignee: Tokyo Electron Limited
    Inventors: Thomas E. Paré, Jr., Michail Tsatsanis, Ioannis Kanellakopoulos, Mark Alan Erickson, Cecilia Gabriela Galarza, James W. Waite, Daniel Joseph Hernandez, Sunil C. Shah, Ming Gu, Norman Man Leung Yuen, Heberly Rosario, Di Lin, Fernando Lopez-de-Victoria
  • Patent number: 6711598
    Abstract: A method and system is disclosed for design and implementation of fixed-point filters from floating-point filters. A design sequence for designing a fixed-point filter for a system is selected. A low-order floating-point filter and a first set of parameters associated with the low-order floating-point filter components are then selected. One or more parameters of the first set of parameters is then iteratively modified to obtain a set of modified parameters, until a plurality of performance characteristics calculated using the first set of parameters meets a performance objective for the fixed-point filter for the system.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: March 23, 2004
    Assignee: Tokyo Electron Limited
    Inventors: Thomas E. Paré, Jr., Daniel Joseph Hernandez, Cecilia Gabriela Galarza, Mark Alan Erickson, Sunil C. Shah