Patents by Inventor Neil J. Spatz

Neil J. Spatz 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).

  • Thermal control system for liquid crystal cell
    Patent number: 6943768
    Abstract: A thermal control system for a liquid crystal cell is presented that may utilize a time division scheme to multiplex temperature sensing and heating functions across active thermal elements such that the cell may generally be kept at a constant temperature. A calibration process characterizes the profile of the cell and generates a polynomial regression formula that provides the voltage drive output for a temperature and cell state input. The control system stores the state of the liquid crystal cell, the regression formula, and reads the temperature of the liquid crystal cell to compute end assert the temperature compensated voltage drive.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: September 13, 2005
    Assignee: Xtellus Inc.
    Inventors: Shanti A. Cavanaugh, Mark A. Crowley, Neil J. Spatz
  • Thermal control system for liquid crystal cell
    Publication number: 20040164946
    Abstract: A thermal control system for a liquid crystal cell is presented that may utilize a time division scheme to multiplex temperature sensing and heating functions across active thermal elements such that the cell may generally be kept at a constant temperature. A calibration process characterizes the profile of the cell and generates a polynomial regression formula that provides the voltage drive output for a temperature and cell state input. The control system stores the state of the liquid crystal cell, the regression formula, and reads the temperature of the liquid crystal cell to compute end assert the temperature compensated voltage drive.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 26, 2004
    Inventors: Shanti A. Cavanaugh, Mark A. Crowley, Neil J. Spatz