Patents by Inventor C. David Wright

C. David Wright 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).

  • Method for determining the position of a first moving component relative to a second component and device for applying said method
    Patent number: 7842913
    Abstract: A method for determining the position of one of two components in relative motion with respect to each other, using optical means, comprises: directing at least one light beam emitted by a light source attached to one component towards a diffractive support attached to the second component, calculated and manufactured for generating an optical signal indicative of the positioning of said support, the optical signal being produced by the diffractive support in transmission and/or in reflection, and the optical signal including information indicative of its quality; detecting and reading at least one optical code formed by said signal, which corresponds to a unique position of the diffractive support relatively to the beam; and assigning a position to each detected optical code.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: November 30, 2010
    Assignee: Delphi Technologies, Inc.
    Inventor: C. David Wright
  • Method for determining the position of a first moving component relative to a second component and device for applying said method
    Publication number: 20090147271
    Abstract: A method for determining the position of one of two components in relative motion with respect to each other, using optical means, comprises: directing at least one light beam emitted by a light source attached to one component towards a diffractive support attached to the second component, calculated and manufactured for generating an optical signal indicative of the positioning of said support, the optical signal being produced by the diffractive support in transmission and/or in reflection, and the optical signal including information indicative of its quality; detecting and reading at least one optical code formed by said signal, which corresponds to a unique position of the diffractive support relatively to the beam; and assigning a position to each detected optical code.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 11, 2009
    Inventor: C. David Wright
  • Method for determining the position of a first moving component relative to a second component and device for applying said method
    Patent number: 7476843
    Abstract: A method for determining the position of one of two components in relative motion with respect to each other, using optical means, comprises: directing at least one light beam emitted by a light source attached to one component towards a diffractive support attached to the second component, calculated and manufactured for generating an optical signal indicative of the positioning of said support, the optical signal being produced by the diffractive support in transmission and/or in reflection, and the optical signal including information indicative of its quality; detecting and reading at least one optical code formed by said signal, which corresponds to a unique position of the diffractive support relatively to the beam; and assigning a position to each detected optical code.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: January 13, 2009
    Assignee: Delphi Technologies, Inc.
    Inventor: C. David Wright
  • Data processor having instructions for interpolating between memory-resident data values respectively
    Patent number: 5170475
    Abstract: A data processor executes a table look-up and interpolate instruction which retrieves two adjacent table values from memory, interpolates between them and stores the result in a register. The same register contains, prior to the execution of the instruction, a value which is used both in calculating the address in memory from which the values are obtained and in performing the interpolation calculation. A major variant of the instruction involves obtaining the values to be interpolated between from registers, rather than from a table in memory. The combination of the two facilitates the performance of three-dimensional, or surface interpolations. It is also possible to select whether rounding is performed during the interpolation.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: December 8, 1992
    Assignees: Motorola, Inc., General Motors Corp.
    Inventors: C. David Wright, John P. Dunn, John Vaglica