Patents by Inventor Andrew V. Veitsel

Andrew V. Veitsel 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).

  • Patent number: 6882312
    Abstract: Disclosed is a method and apparatus for multipath mitigation using an antenna array. An antenna array made up of a plurality of antennas is used to receive satellite signals from satellites. Various configurations of antenna arrays is disclosed, including a linear vertical antenna array and a horizontal antenna array in which the antenna elements are located in a horizontal plane. A switch sequentially connects each of the antenna outputs to a single processing path to generate a common additive signal. The common additive signal is provided to satellite channel processors, each of which processes the signals from an associated satellite. A phase shift correction signal associated with each of the antennas is generated and synchronously applied to a carrier phase reference signal. A blocking signal may be applied to the satellite channel processors in order to block the processing of signals from an unwanted satellite.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: April 19, 2005
    Assignee: Topcon GPS, LLC
    Inventors: Michael Yu. Vorobiev, Mark I. Zhodzishsky, Andrew V. Veitsel, Victor A. Veitsel, Alexey V. Zhdanov, Sergey N. Pushkarev