Patents by Inventor Gregory D. Hogerheiden

Gregory D. Hogerheiden 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).

  • Cascaded high-level narrowband/low-level wideband interference canceler
    Patent number: 9014315
    Abstract: A receiver receives radio frequency (RF) energy including a desired signal and interference including high-level narrowband interference and low-level wideband interference. A first stage canceler cancels the high-level narrowband interference from the received RF energy based on a first correction signal representative of the interference, to produce a first canceler output signal. A second stage canceler frequency down-converts to baseband, and filters the high-level narrowband interference from, a sample of the first correction signal, to produce a second correction signal including the low-level wideband interference frequency down-converted to baseband. A digital canceler digitally cancels the low-level wideband interference from the first canceler output signal based on the second correction signal, to recover the desired signal.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: April 21, 2015
    Assignee: Exelis Inc.
    Inventors: John Hogerheiden, Jr., Gregory D. Hogerheiden