Patents by Inventor Dee-Pong Daniel Lu

Dee-Pong Daniel Lu 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).

  • Frequency division multiplexing scheme for phasing synthetic aperture radars and receivers
    Patent number: 10778355
    Abstract: A frequency division multiplexing system includes a processor, a first digital to analog converter (DAC) for generating a local oscillator signal, a second DAC for generating a chirp signal, and a plurality of electronic elements, each having a transmit signal mixer for combining the local oscillator and chirp signals, and a transceiver configured to transmit the combined local oscillator and chirp signals, where the processor may be configured to operate the first DAC and second DAC to vary frequencies of the local oscillator and chirp signals such that the combination of the local oscillator and chirp signals results in a constant center frequency with a varying phase.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: September 15, 2020
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Rafael Rincon, Dee-Pong Daniel Lu