Patents Represented by Attorney Joan B. Sowell, Att.

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  • Apparatus and method for frequency space modeling
    Patent number: 5572214
    Abstract: This is a computer-implemented model for the frequency space utilized by the Mode Select Beacon System (the Mode S system) for air traffic surveillance and control. The model simulates the operation of interrogators, transponders, and receivers, and calculates the probability of interference between transponder reply signals using a sliding window.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: November 5, 1996
    Assignee: Unisys Corporation
    Inventor: Emanuel I. Ringel