Patents by Inventor Kris P. Maine

Kris P. Maine 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).

  • Code division multiple access enhanced capacity system
    Patent number: 7139302
    Abstract: A code division multiple access (CDMA) communication system using spread spectrum signaling over a communication bandwidth uses two different signal spectra generated using two different respective spreading code formats, such as NRZ code formatting and Manchester code formatting, for respectively providing nonsplit spectra having a center peak and split spectra having a center null. The spectra are combined during transmission as a CDMA communication signal having a composite spectrum. The use of different code formats produces the composite spectrum of respective center peak and center null spectra that enables increased channel capacity.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: November 21, 2006
    Assignee: The Aerospace Corporation
    Inventors: Srinivasa H. Raghavan, Jack K. Holmes, Kris P. Maine
  • Code division multiple access enhanced capacity system
    Publication number: 20040095989
    Abstract: A code division multiple access (CDMA) communication system using spread spectrum signaling over a communication bandwidth uses two different signal spectra generated using two different respective spreading code formats, such as NRZ code formatting and Manchester code formatting, for respectively providing nonsplit spectra having a center peak and split spectra having a center null. The spectra are combined during transmission as a CDMA communication signal having a composite spectrum. The use of different code formats produces the composite spectrum of respective center peak and center null spectra that enables increased channel capacity.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 20, 2004
    Inventors: Srinivasa H. Raghavan, Jack K. Holmes, Kris P. Maine