Patents by Inventor Philip Nicholas Hill

Philip Nicholas Hill 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).

  • Audio signal processor for simulating the notional sound source
    Patent number: 5682433
    Abstract: An Audio Signal Processing system in which gain values are calculated for a plurality of output channels so that, from a notional listening position, a notional sound source may be perceived as being positioned anywhere within a notional listening space. First gain contributions arranged to make a predominant contribution when the perceived position is close to the notional listening position are calculated. Second gain contributions arranged to make a predominant contribution when the perceived positions are not close to the notional listening position are calculated. The first gain contributions and the second gain contributions are combined to produce combined gain values for each output channel.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: October 28, 1997
    Inventors: Christopher James Pickard, Philip Nicholas Hill