Patents by Inventor Brian Ross Shelton

Brian Ross Shelton 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).

  • Telephone instrument and method for altering audible characteristics
    Patent number: 5761295
    Abstract: A telephone instrument creates spatially simulated sound signals from signals received from a telephone line. The monaural signals are separated to two left and right channels. In each channel, the signals are processed via a direct path, an early reflection path including a finite impulse response filter and a reverberant decay path including all-pass filter. In each channel, the outputs from the three paths are summed with different weights.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: June 2, 1998
    Assignee: Northern Telecom Limited
    Inventors: Michael Edmund Knappe, Brian Ross Shelton