Patents by Inventor Andrew Warner

Andrew Warner 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).

  • System for plotting and scanning graphic images
    Patent number: 4992890
    Abstract: A system for scanning or plotting a graphic image. The system deflects (10) a portion of the beam of light (18) by an amount dependent upon the value of a characteristic of a signal (12). A plurality of signals is generated (12), each having a different value of the characteristic. Portions of the beam are deflected along paths (15), such that the pixels created by one portion are disposed along one scan line, while pixels of the other portion are disposed along a successive scan line.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: February 12, 1991
    Assignee: Intergraph Corporation
    Inventors: Alward I. Pinard, Gary Girzon, Andrew Warner
  • Method and apparatus for producing a time advanced output pulse train from an input pulse train
    Patent number: 4518998
    Abstract: A method and apparatus for producing a time advanced pulse train from an input pulse train using a phase locked loop with time delayed feedback. The apparatus is used to generate clock signals that occur at a precise relationship to the position of a scanning or writing laser beam.
    Type: Grant
    Filed: June 3, 1982
    Date of Patent: May 21, 1985
    Assignee: Klimsch/Optronics, Inc.
    Inventor: Andrew Warner
  • Frequency synthesizer and method
    Patent number: 4518920
    Abstract: A frequency synthesizer and method for producing an output pulse based upon a mathematical calculation with the output pulse synchronized to an input pulse train on a pulse-by-pulse basis.
    Type: Grant
    Filed: June 3, 1982
    Date of Patent: May 21, 1985
    Assignee: Klimsch/Optronics, Inc.
    Inventors: Andrew Warner, David A. Zlotek