Patents by Inventor Shantanu Chakrabartty

Shantanu Chakrabartty 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).

  • Self-powered sensor
    Publication number: 20080047355
    Abstract: A self-powered sensor is provided for fatigue monitoring and other low power requirement applications. The self-powered sensor is comprised of: a piezoelectric transducer; a non-volatile memory comprised of at least one floating gate transistor; and a current reference circuit adapted to receive a voltage signal from the piezoelectric transducer and operable to output an injection current into the non-volatile memory. The current reference circuit may employ a floating gate transistor operating in a weak-inversion mode.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 28, 2008
    Applicant: Board of Trustees of Michigan State University
    Inventors: Shantanu Chakrabartty, Nizar Lajnef, Niell Elvin, Amit Gore
  • Margin decoding communications system
    Publication number: 20070250759
    Abstract: A margin decoding communications system includes a circuit receiving a message encoded by an iterative code and processing the message into scores. A normalization process module receives the scores and iteratively approximates log-map normalization factors of the scores to generate approximation normalization factors. An element receives the message and the approximation normalization factors and decodes the received message based on the approximation normalization factors.
    Type: Application
    Filed: April 6, 2007
    Publication date: October 25, 2007
    Applicant: Board of Trustees of Michigan State University
    Inventor: Shantanu Chakrabartty