Patents by Inventor Rex Hales

Rex Hales 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).

  • Current mode sigma-delta modulator
    Publication number: 20070139241
    Abstract: Exemplary sigma-delta modulators include a summing block configured to receive an input signal, a noise shaping unit configured to process an output signal of the summing block, a quantizer configured to quantize an output signal of the noise shaping unit, and a current-mode digital-to-analog converter (“DAC”) configured to convert an output of the quantizer into an analog signal and input the analog signal into the summing block in a closed loop feedback manner.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 21, 2007
    Inventors: Rex Hales, Kent Smith
  • Current mode analog-to-digital converter
    Publication number: 20060017598
    Abstract: A method of converting an analog signal to a digital signal includes comparing an input current to one or more reference currents to generate the desired digital signal. An Analog-to-Digital Converter includes a plurality of current comparators; and a plurality of current references providing reference currents to the comparators.
    Type: Application
    Filed: May 18, 2005
    Publication date: January 26, 2006
    Applicant: SLICEX, Inc.
    Inventors: Rex Hales, David Blaine, Marshall Soares