Patents by Inventor Shaileshkumar Goyal

Shaileshkumar Goyal 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).

  • Dynamic focusing method and apparatus
    Patent number: 7321108
    Abstract: A method and apparatus for dynamically focusing an imaging mechanism on a moving target surface having a variable geometry is herein disclosed. Apparatus for focusing an imaging mechanism may include an objective, a prism, or another optical device that forms part of an optical train of an imaging mechanism, a sensor for measuring a distance to the target surface, and a mechanism for modifying the depth of focus of the objective, prism or other optical device. Data from the sensor may be used to create a predictive model of the target surface. Data from the sensor is also used to fit or correlate the generated model to an exemplary target. Data from the correlated model is used to drive the mechanism for modifying the depth of focus of the objective, prism, or other optical device to maintain the surface of the exemplary target in focus.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: January 22, 2008
    Assignee: Rudolph Technology, Inc.
    Inventors: Cory Watkins, Mark Harless, David Vaughnn, Pat Simpkins, Shaileshkumar Goyal, Gerald Brown, Brian Delsey
  • DYNAMIC FOCUSING METHOD AND APPARTUS
    Publication number: 20070114358
    Abstract: A method and apparatus for dynamically focusing an imaging mechanism on a moving target surface having a variable geometry is herein disclosed. Apparatus for focusing an imaging mechanism may include an objective, a prism, or another optical device that forms part of an optical train of an imaging mechanism, a sensor for measuring a distance to the target surface, and a mechanism for modifying the depth of focus of the objective, prism or other optical device. Data from the sensor may be used to create a predictive model of the target surface. Data from the sensor is also used to fit or correlate the generated model to an exemplary target. Data from the correlated model is used to drive the mechanism for modifying the depth of focus of the objective, prism, or other optical device to maintain the surface of the exemplary target in focus.
    Type: Application
    Filed: January 22, 2007
    Publication date: May 24, 2007
    Inventors: Cory Watkins, Mark Harless, David Vaughnn, Pat Simpkins, Shaileshkumar Goyal, Gerald Brown, Brian Delsey
  • Dynamic focusing method and apparatus
    Patent number: 7196300
    Abstract: A method and apparatus for dynamically focusing an imaging mechanism on a moving target surface having a variable geometry is herein disclosed. Apparatus for focusing an imaging mechanism may include an objective, a prism, or another optical device that forms part of an optical train of an imaging mechanism, a sensor for measuring a distance to the target surface, and a mechanism for modifying the depth of focus of the objective, prism or other optical device. Data from the sensor may be used to create a predictive model of the target surface. Data from the sensor is also used to fit or correlate the generated model to an exemplary target. Data from the correlated model is used to drive the mechanism for modifying the depth of focus of the objective, prism, or other optical device to maintain the surface of the exemplary target in focus.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: March 27, 2007
    Assignee: Rudolph Technologies, Inc.
    Inventors: Cory Watkins, Mark Harless, David Vaughnn, Pat Simpkins, Shaileshkumar Goyal, Gerald Brown, Brian Delsey
  • Dynamic focusing method and apparatus
    Publication number: 20060033056
    Abstract: A method and apparatus for dynamically focusing an imaging mechanism on a moving target surface having a variable geometry is herein disclosed. Apparatus for focusing an imaging mechanism may include an objective, a prism, or another optical device that forms part of an optical train of an imaging mechanism, a sensor for measuring a distance to the target surface, and a mechanism for modifying the depth of focus of the objective, prism or other optical device. Data from the sensor may be used to create a predictive model of the target surface. Data from the sensor is also used to fit or correlate the generated model to an exemplary target. Data from the correlated model is used to drive the mechanism for modifying the depth of focus of the objective, prism, or other optical device to maintain the surface of the exemplary target in focus.
    Type: Application
    Filed: July 11, 2005
    Publication date: February 16, 2006
    Inventors: Cory Watkins, Mark Harless, David Vaughnn, Pat Simpkins, Shaileshkumar Goyal, Gerald Brown, Brian Delsey