Patents by Inventor David K Abe

David K Abe 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).

  • Predistortion linearizer using cascaded lower-order linearizers
    Patent number: 7348843
    Abstract: A predistortion linearizer for predistorting a radiofrequency (RF) signal includes a first third-order predistortion linearizer having an input for receiving the RF signal, and a second third-order predistortion linearizer connected in cascade with the first linearizer, whereby fifth order nonlinearities are introduced into a cascaded, predistorted RF output signal. Cascading additional third-order linearizers similarly provides higher-order linearizers.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: March 25, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joe X Qiu, David K Abe