Patents by Inventor Andrejs Jugs

Andrejs Jugs 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).

  • TCAS bearing estimation receiver using a 4 element antenna
    Patent number: 4855748
    Abstract: A direction finding receiving system for use on a protected aircraft in which a signal from an ATCRABS transponder on an intruder aircraft is received has been described incorporating a four element interferometer type antenna array, reversing switches, individual receivers, a phase detector and a processor for processing the outputs of the phase detector. The invention overcomes the problem of correcting for the difference in phase delay of signals passing through the receivers.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: August 8, 1989
    Assignee: Allied-Signal Inc.
    Inventors: Ruy L. Brandao, Constantinos S. Kyriakos, Randall C. Spires, Andrejs Jugs