Patents by Inventor Edgar Joseph Berdahl

Edgar Joseph Berdahl 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).

  • STRINGED INSTRUMENT WITH ACTIVE STRING TERMINATION MOTION CONTROL
    Publication number: 20130255477
    Abstract: A system for controlling for at least one string of a musical instrument by selectively exciting or damping vibration of the string is provided. The system includes at least one transducer configured to sense a lateral vibration of the string and/or to apply an actuating force to the string. A controller is configured to determine an actuating signal for driving the actuator to apply a longitudinal actuating force to the string at a termination point of the string. The longitudinal actuating force are operable to modulate a tension of the string that increases and/or damps the lateral vibration and/or selected harmonics thereof.
    Type: Application
    Filed: May 24, 2013
    Publication date: October 3, 2013
    Inventors: Paul F. Ierymenko, Edgar Joseph Berdahl
  • Stringed instrument with active string termination motion control
    Patent number: 8450593
    Abstract: A system for controlling for at least one string of a musical instrument by selectively exciting or damping vibration of the string is provided. The system includes at least one transducer configured to sense a lateral vibration of the string and/or to apply an actuating force to the string. A controller is configured to determine an actuating signal for driving the actuator to apply a longitudinal actuating force to the string at a termination point of the string. The longitudinal actuating force are operable to modulate a tension of the string that increases and/or damps the lateral vibration and/or selected harmonics thereof.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: May 28, 2013
    Inventors: Paul F. Ierymenko, Edgar Joseph Berdahl
  • Stringed Instrument with Active String Termination Motion Control
    Publication number: 20100263521
    Abstract: A system for controlling for at least one string of a musical instrument by selectively exciting or damping vibration of the string is provided. The system includes at least one transducer configured to sense a lateral vibration of the string and/or to apply an actuating force to the string. A controller is configured to determine an actuating signal for driving the actuator to apply a longitudinal actuating force to the string at a termination point of the string. The longitudinal actuating force are operable to modulate a tension of the string that increases and/or damps the lateral vibration and/or selected harmonics thereof.
    Type: Application
    Filed: May 3, 2010
    Publication date: October 21, 2010
    Inventors: Paul F. Ierymenko, Edgar Joseph Berdahl