Patents by Inventor Matthew J. Willis

Matthew J. Willis 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).

  • Processing audio signals
    Patent number: 5636283
    Abstract: A system for mixing five channel sound which surrounds an audio plane. The position of a sound source is displayed on a VDU (16) relative to the position of a notional listener (31). The sound source is moved within the audio plane by operation of a stylus (23) upon a touch tablet (24). Thus, an operator is only required to specify positions of a sound source over time, whereafter a processing unit (17) calculates actual gain values for the five channels at sample rate. Gain values are calculated for the sound track for each of the loudspeaker channels and for each of these specified points. Gain values are then produced at sample rate by interpolating calculated gain values for each channel at sample rate.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: June 3, 1997
    Assignee: Solid State Logic Limited
    Inventors: Philip N. C. Hill, Matthew J. Willis