Patents by Inventor Charles T. Patterson

Charles T. Patterson 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).

  • Method and apparatus for improving sector to sector isolation in a Fourier transform matrix system
    Patent number: 7480346
    Abstract: A method for providing increased sector-to-sector isolation when transmitting data between a plurality of Fourier transform matrices, each having an input Fourier transform matrix (FTM), an output FTM, and a plurality of transmit paths therebetween is disclosed. The method includes applying a tone to one of the plurality of transmit paths so that a correlated output can be produced, measuring an output of the output FTM, correlating the output of the output FTM against the tone applied to produce a correlated output, adjusting a phase of the transmit path such that a direct current value of the correlated output is minimized, and adjusting an attenuation of the transmit path such that the direct current of the correlated output is minimized.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: January 20, 2009
    Assignee: Motorola, Inc.
    Inventors: Ronald L. Porco, Charles T. Patterson, Mark I. Van Horn
  • METHOD AND APPARATUS FOR IMPROVING SECTOR TO SECTOR ISOLATION IN A FOURIER TRANSFORM MATRIX SYSTEM
    Publication number: 20080070525
    Abstract: A method for providing increased sector-to-sector isolation when transmitting data between a plurality of Fourier transform matrices, each having an input Fourier transform matrix (FTM), an output FTM, and a plurality of transmit paths therebetween is disclosed. The method includes applying a tone to one of the plurality of transmit paths so that a correlated output can be produced, measuring an output of the output FTM, correlating the output of the output FTM against the tone applied to produce a correlated output, adjusting a phase of the transmit path such that a direct current value of the correlated output is minimized, and adjusting an attenuation of the transmit path such that the direct current of the correlated output is minimized.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 20, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Ronald L. Porco, Charles T. Patterson, Mark I. Van Horn