Patents by Inventor Charles C. Ferrill

Charles C. Ferrill 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 reinforcement method and apparatus for musical instruments
    Patent number: 8139785
    Abstract: A method and apparatus for sound reinforcement for musical instruments. The method and apparatus re-direct sound waves via an open-sided chamber against a curved wall panel in such a way that the sound from a musical amplifier is reflected or altered in its course from a direction in which the microphone design has reduced sensitivity to a direction of maximum sensitivity and, typically, altering the direction of the sound from off-axis to on-axis into the microphone capsule.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: March 20, 2012
    Inventor: Charles C. Ferrill
  • Sound reinforcement method and apparatus for musical instruments
    Publication number: 20090316927
    Abstract: A method and apparatus for sound reinforcement for musical instruments. The method and apparatus re-direct sound waves via an open-sided chamber against a curved wall panel in such a way that the sound from a musical amplifier is reflected or altered in its course from a direction in which the microphone design has reduced sensitivity to a direction of maximum sensitivity and, typically, altering the direction of the sound from off-axis to on-axis into the microphone capsule.
    Type: Application
    Filed: June 23, 2008
    Publication date: December 24, 2009
    Inventor: Charles C. Ferrill