Patents by Inventor Brian Charles Gibson

Brian Charles Gibson 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).

  • Targeted vocal transformation
    Patent number: 6336092
    Abstract: The invention is a method for transforming a source individual's voice so as to adopt the characteristics of a target individual's voice. The excitation signal component of the target individual's voice is extracted and the spectral envelope of the source individual's voice is extracted. The transformed voice is synthesized by applying the spectral envelope of the source individual to the excitation signal component of the voice of the target individual. A higher quality transformation is achieved using an enhanced excitation signal created by replacing unvoiced regions of the signal with interpolated data from adjacent voiced regions. Various methods of transforming the spectral characteristics of the source individual's voice are also disclosed.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: January 1, 2002
    Assignee: Ivl Technologies Ltd
    Inventors: Brian Charles Gibson, Peter Ronald Lupini, Dale John Shpak
  • Method and apparatus for changing the timbre and/or pitch of audio signals
    Patent number: 6046395
    Abstract: A method for shifting the timbre and/or pitch of an input signal samples the input signal at a first rate and stores the samples in a memory buffer. A digital signal processor resamples the stored input signal at a rate that differs from the first rate at which the input note is originally sampled and stores the resampled input signal in a second memory buffer. A pitch shifter shifts the pitch of the input signal by periodically scaling the resampled input signal by a window function to create an output signal. The rate at which the resampled data is replicated by the window function determines the pitch of the output signal.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: April 4, 2000
    Assignee: IVL Technologies Ltd.
    Inventors: Brian Charles Gibson, Christopher Michael Jubien, Brian John Roden
  • Method and apparatus for changing the timbre and/or pitch of audio signals
    Patent number: 5986198
    Abstract: A method for shifting the timbre and/or pitch of an input signal samples the input signal at a first rate and stores the samples in a memory buffer. A digital signal processor resamples the stored input signal at a rate that differs from the first rate at which the input note is originally sampled and stores the resampled input signal in a second memory buffer. A pitch shifter shifts the pitch of the input signal by periodically scaling the resampled input signal by a window function to create an output signal. The rate at which the resampled data is replicated by the window function determines the pitch of the output signal.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: November 16, 1999
    Assignee: IVL Technologies Ltd.
    Inventors: Brian Charles Gibson, Christopher Michael Jubien, Brian John Roden