Patents by Inventor Shawna L. Ong

Shawna L. Ong 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).

  • Low cost and low frequency baseband two-tone test set using direct digital synthesizers as signal generators and a fully differential amplifier as the power combiner
    Patent number: 10200222
    Abstract: A test set system and related method are provided comprise a first direct digital synthesizer (DDS) having a balanced output configured to produce a first signal, and a second DDS having a balanced output signal configured to produce a second signal that differs from the first signal. The test set system also comprises a fully differential amplifier (FDA) having a balanced input that is connected to the balanced output of the first DDS and the balanced output of the second DDS, and a balanced output at which a combination of the first signal and the second signal is provided that suppresses even-order intermodulation products.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: February 5, 2019
    Assignee: Raytheon Company
    Inventors: David Allen Hairfield, Michael G. Carlsen, Ryan G. Beck, Shawna L. Ong, Colt James
  • LOW COST AND LOW FREQUENCY BASEBAND TWO-TONE TEST SET USING DIRECT DIGITAL SYNTHESIZERS AS SIGNAL GENERATORS AND A FULLY DIFFERENTIAL AMPLIFIER AS THE POWER COMBINER
    Publication number: 20180219705
    Abstract: A test set system and related method are provided comprise a first direct digital synthesizer (DDS) having a balanced output configured to produce a first signal, and a second DDS having a balanced output signal configured to produce a second signal that differs from the first signal. The test set system also comprises a fully differential amplifier (FDA) having a balanced input that is connected to the balanced output of the first DDS and the balanced output of the second DDS, and a balanced output at which a combination of the first signal and the second signal is provided that suppresses even-order intermodulation products.
    Type: Application
    Filed: January 31, 2017
    Publication date: August 2, 2018
    Inventors: David Allen Hairfield, Michael G. Carlsen, Ryan G. Beck, Shawna L. Ong, Colt James