Patents by Inventor Kenneth Rilling

Kenneth Rilling 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).

  • Two terminal antenna for adaptive arrays
    Patent number: 5021800
    Abstract: A single two terminal antenna, such as a dipole antenna, is used to supply the input signals for a two element adaptive array. This reduces the number of antennas required by the adaptive array to reject an inteference signal from two to one. The antenna is connected so that the phase information reflecting the direction of arrival of a received signal is preserved. The resulting single antenna adaptive array functions like a two element adaptive array. When the two terminal antenna is not located at the adaptive array, two transmission lines are required to carry the output signals of the antenna. In a similar manner, an N input adaptive array (where N is an even number) can use N/2 two terminal antennas to reject N-1 interference signals.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: June 4, 1991
    Inventor: Kenneth Rilling
  • Multipath reduction system
    Patent number: 4797950
    Abstract: The effects of multipath and other interference signals in communication receivers are reduced by implementing an adaptive array. The invention addresses a signal environment in which the directions of arrival and the time of arrival of the signal of interest and the unwanted multipath or interference signals are unknown. The feedback equation of the LMS adaptive array is changed so that a reference signal is not needed. The system uses the strongest received signal as the signal of interest and rejects the other received signals.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: January 10, 1989
    Inventor: Kenneth Rilling
  • Multipath reduction system
    Patent number: 4736460
    Abstract: The effects of multipath and other interference signals in communication receivers are reduced by implementing an adaptive array. The invention addresses a signal environment in which the directions of arrival and the time of arrival of the signal of interest and the unwanted multipath or interference signals are unknown. The feedback equation of the LMS adaptive array is changed so that a reference signal is not needed. The system uses the strongest received signal as the signal of interest and rejects the other received signals.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: April 5, 1988
    Inventor: Kenneth Rilling