Patents by Inventor Aja Anjilivelil

Aja Anjilivelil 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).

  • Active masking of tonal noise using motor-based acoustic generator to improve sound quality
    Patent number: 10319360
    Abstract: In various embodiments, methods, systems, and vehicles are provided for masking a tonal noise of a motor. In certain embodiments, a vehicle includes a drive system and an active masking acoustic signal generator (AMAG). The drive system includes a motor generating a tonal noise. The AMAG is configured to at least facilitate masking the tonal noise, by introducing a complementary harmonic tone, injecting dithering into the motor, or both.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: June 11, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Song He, Yo Chan Son, Gilsu Choi, Caleb W. Secrest, Aja Anjilivelil, Scott M. Reilly, John P. Miller