Patents by Inventor Warwick H. Holmes

Warwick H. Holmes 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).

  • Helmholtz resonant simulator
    Patent number: 4819537
    Abstract: For electronically reproducing the total sound produced by a musical instrument, the musical instrument comprises a plurality of components each of which produces one aspect of the total sound, an electronic acoustic reproduction system comprises vibration transducer means mounted on the instrument for receiving the one aspect of the total sound from one of the components and transforming the one aspect to an electrical signal, and electronic filter means for processing the electrical signal to produce a total electrical signal representative of the total sound of the musical instrument.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: April 11, 1989
    Inventors: Joseph F. Hayes, Warwick H. Holmes