Patents by Inventor Frank A. Alder

Frank A. Alder 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).

  • Apparatus and method of CTCM encoding and decoding for a digital communication system
    Patent number: 7010052
    Abstract: A method of building systematically a multi-dimensional (n, D, L) circular trellis coded modulation (CTCM) encoder with properties of optimal energy efficiency, strong tail biting and maximum minimum distance (dmin) of trellis paths is disclosed.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: March 7, 2006
    Assignee: The Ohio University
    Inventors: Jeffrey C. Dill, Sergio R. Lopez-Permouth, Alan Ray Lindsey, Yung-Cheng Lo, Frank A. Alder, Xiangyu Song
  • Apparatus and method of CTCM encoding and decoding for a digital communication system
    Publication number: 20020196862
    Abstract: A method of building systematically a multi-dimensional (n, D, L) circular trellis coded modulation (CTCM) encoder with properties of optimal energy efficiency, strong tail biting and maximum minimum distance (dmin) of trellis paths is disclosed.
    Type: Application
    Filed: April 16, 2001
    Publication date: December 26, 2002
    Inventors: Jeffrey C. Dill, Sergio R. Lopez-Permouth, Alan R. Lindsey, Yung-Cheng Lo., Frank A. Alder, Xiangyu Song