Patents by Inventor D. J. Richard Van Nee

D. J. Richard Van Nee 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).

  • Increased data communication capacity of a high rate wireless network
    Publication number: 20020072392
    Abstract: The invention relates to a wireless radiofrequency data communication system comprising:
    Type: Application
    Filed: May 4, 2001
    Publication date: June 13, 2002
    Inventors: Geert Arnout Awater, D.J. Richard Van Nee
  • Digital modulation system using modified orthogonal codes to reduce autocorrelation
    Patent number: 6404732
    Abstract: A digital modulation system provides enhanced multipath performance by using modified orthogonal codes with reduced autocorrelation sidelobes while maintaining the cross-correlation properties of the modified codes. For example, the modified orthogonal codes can reduce the autocorrelation level so as not to exceed one-half the length of the modified orthogonal code. In certain embodiments, an M-ary orthogonal keying (MOK) system is used which modifies orthogonal Walsh codes using a complementary code to improve the auto-correlation properties of the Walsh codes, thereby enhancing the multipath performance of the MOK system while maintaining the orthogonality and low cross-correlation characteristics of the Walsh codes.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: June 11, 2002
    Assignee: Agere Systems Guardian Corp.
    Inventor: D. J. Richard van Nee