Patents by Inventor David Alan Knechtges

David Alan Knechtges 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).

  • Sound modification system and method
    Patent number: 8542844
    Abstract: A sound modification system and a method of managing sound in a vehicle. The system includes an active noise reduction (ANR) controller, an engine sound enhancement (ESE) controller and a sound modification controller. When the vehicle is in a steady state driving condition, the sound modification controller activates the ANR controller and deactivates the ESE controller. In contrast, when the vehicle is in a non-steady state driving condition, the sound modification controller activates the ESE controller and deactivates the ANR controller. Preferably, when the vehicle switches between the steady state and non-steady state driving conditions, the sound modification controller activates and deactivates the ANR and ESE controllers at a rate that is not noticeable to a human. In summary, the system utilizes the ANR and ESE controllers to achieve an optimal passenger cabin experience for the driver during any driving condition.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: September 24, 2013
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Upton Beall Bowden, David Ming Chi, David Alan Knechtges, Stephen James Adams
  • Sound Modification System And Method
    Publication number: 20120257763
    Abstract: A sound modification system and a method of managing sound in a vehicle. The system includes an active noise reduction (ANR) controller, an engine sound enhancement (ESE) controller and a sound modification controller. When the vehicle is in a steady state driving condition, the sound modification controller activates the ANR controller and deactivates the ESE controller. In contrast, when the vehicle is in a non-steady state driving condition, the sound modification controller activates the ESE controller and deactivates the ANR controller. Preferably, when the vehicle switches between the steady state and non-steady state driving conditions, the sound modification controller activates and deactivates the ANR and ESE controllers at a rate that is not noticeable to a human. In summary, the system utilizes the ANR and ESE controllers to achieve an optimal passenger cabin experience for the driver during any driving condition.
    Type: Application
    Filed: April 7, 2011
    Publication date: October 11, 2012
    Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.
    Inventors: Upton Beall Bowden, David Ming Chi, David Alan Knechtges, Stephen James Adams