Patents by Inventor Colin Ruhe

Colin Ruhe 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).

  • Patent number: 6288608
    Abstract: A radio frequency power amplifier for a battery powered handset unit of a wireless communications system having a low power signal amplification path and a high power signal amplification path. Logic and biasing means within the handset select between the low power signal path and the high power signal depending upon the handset being within or outside a prescribed distance from a base station. In this way, the signals received at the base station from the handset are at the required power level.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: September 11, 2001
    Assignee: International Business Machines Corporation
    Inventors: Dale K. Jadus, James M. Moniz, Joseph Pusl, Colin Ruhe, Carl Stuebing