Patents by Inventor John Abaunza

John Abaunza 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).

  • System and method for receiving and decoding global positioning satellite signals
    Patent number: 5271034
    Abstract: A system receives and demodulates spread spectrum positional signals such as those generated by a GPS satellite by frequency shifting the signals substantially to baseband and utilizing digital signal processing techniques. The digital signal processing techniques utilized can be implemented by a standard audio digital signal processor due to the circuit design. The spread spectrum signal is frequency shifted substantially to baseband, forming in-phase and quadrature components which are processed substantially in parallel. Pseudo-range, carrier phase and doppler frequency, and the underlying data are thereby derived.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: December 14, 1993
    Assignee: Avion Systems, Inc.
    Inventor: John Abaunza