Patents by Inventor Curtis Alan Shuman

Curtis Alan Shuman 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).

  • Sensing absolute position of an encoded object
    Patent number: 7638755
    Abstract: In one aspect of the present invention, a device for sensing an absolute position of an encoded object, comprising: a position tracking module comprising: a track illumination module configured to illuminate the encoded object with one more light beams, and to detect one or more light beams resulting from said illumination of said encoded object; and an absolute position determinator configured to determine the absolute position of the encoded object based on said one or more light beams resulting from said illumination of said encoded object.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: December 29, 2009
    Assignee: Inphase Technologies, Inc.
    Inventors: Mark R. Ayres, Larry Fabiny, Keith W. Malang, Curtis Alan Shuman
  • SENSING ABSOLUTE POSITION OF AN ENCODED OBJECT
    Publication number: 20080203282
    Abstract: In one aspect of the present invention, a device for sensing an absolute position of an encoded object, comprising: a position tracking module comprising: a track illumination module configured to illuminate the encoded object with one more light beams, and to detect one or more light beams resulting from said illumination of said encoded object; and an absolute position determinator configured to determine the absolute position of the encoded object based on said one or more light beams resulting from said illumination of said encoded object.
    Type: Application
    Filed: May 1, 2008
    Publication date: August 28, 2008
    Applicant: INPHASE TECHNOLOGIES, INC.
    Inventors: Mark R. AYRES, Larry FABINY, Keith W. MALANG, Curtis Alan SHUMAN
  • Obliquity correction system
    Patent number: 6914704
    Abstract: Disclosed are methods of producing obliquity corrected light beams, and holographic recording and retrieval systems that utilize a obliquity corrected reference beam. The obliquity correction is accomplished using off-center lenses.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: July 5, 2005
    Assignee: InPhase Technologies, Inc.
    Inventor: Curtis Alan Shuman
  • Obliquity correction system
    Publication number: 20030123116
    Abstract: Disclosed are methods of producing obliquity corrected light beams, and holographic recording and retrieval systems that utilize a obliquity corrected reference beam. The obliquity correction is accomplished using off-center lenses.
    Type: Application
    Filed: August 5, 2002
    Publication date: July 3, 2003
    Applicant: InPhase Technologies, Inc.
    Inventor: Curtis Alan Shuman
  • Holographic optical element with castellated aperture
    Patent number: 6144470
    Abstract: In an optical positioning system, a holographic optical element having a plurality of rectangular apertures has predetermined ones of its aperture edges castellated or notched in order to null out undesired light energy in target areas. The apertures may be fitted with diffraction grating patterns that may also be castellated for the same purpose. A method of using the aperture and grating pattern castellated holographic optical element is also provided.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: November 7, 2000
    Assignee: O. R. Technology, Inc.
    Inventors: Stephen Wade Farnsworth, Curtis Alan Shuman
  • System and method for creating and utilizing a sinusoidal based pattern sensor to achieve precise positioning of a movable element
    Patent number: 5949066
    Abstract: A position sensor and a method of creating the same which sensor has an incoherent light source, multiple light detectors and a sinusoidal pattern that can be directly installed to the sensor. The light source and detectors are positioned along the axis of motion of the element whose position is to be determined. In a device containing such a movable target element, light from the sensor is directed through the sinusoidal pattern to and reflected from a periodic reflection profile to create detectable sinusoid signals that can be used for positioning purposes.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: September 7, 1999
    Assignee: O.R. Technology, Inc.
    Inventors: James Patrick Rice, David Martin Perry, Curtis Alan Shuman, Peter Joseph Van Laanen