Patents by Inventor Gary V. Dent

Gary V. Dent 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).

  • Amplification systems
    Patent number: 5262734
    Abstract: An amplification system for amplifying an input signal at radio frequency comprises a linear power amplifier and a drive unit. In a test mode, the drive unit feeds two signal tones simultaneously to the amplifier input and a processing circuit analyse the output of the amplifier to identify distorting IMPs. A predistortion circuit operates in an amplification mode to apply a predistortion to a digital representation of the input signal to compensate for the effect of the distorting IMPs generated in the amplifier.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: November 16, 1993
    Assignee: Racal Communications Systems Limited
    Inventors: Gary V. Dent, Christopher J. Andrews