Patents by Inventor Andrew E. Vandali

Andrew E. Vandali 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).

  • Emphasis of short-duration transient speech features
    Patent number: 8296154
    Abstract: A sound processor including a microphone (1), a pre-amplifier (2), a bank of N parallel filters (3), means for detecting short-duration transitions in the envelope signal of each filter channel, and means for applying gain to the outputs of these filter channels in which the gain is related to a function of the second-order derivative of the slow-varying envelope signal in each filter channel, to assist in perception of low-intensity sort-duration speech features in said signal.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: October 23, 2012
    Assignee: Hearworks Pty Limited
    Inventors: Andrew E. Vandali, Graeme M. Clark
  • EMPHASIS OF SHORT-DURATION TRANSIENT SPEECH FEATURES
    Publication number: 20090076806
    Abstract: A sound processor including a microphone (1), a pre-amplifier (2), a bank of N parallel filters (3), means for detecting short-duration transitions in the envelope signal of each filter channel, and means for applying gain to the outputs of these filter channels in which the gain is related to a function of the second-order derivative of the slow-varying envelope signal in each filter channel, to assist in perception of low-intensity sort-duration speech features in said signal.
    Type: Application
    Filed: October 28, 2008
    Publication date: March 19, 2009
    Inventors: Andrew E. Vandali, Graeme M. Clark
  • Emphasis of short-duration transient speech features
    Patent number: 7219065
    Abstract: A sound processor including a microphone (1), a pre-amplifier (2), a bank of N parallel filters (3), means for detecting short-duration transitions in the envelope signal of each filter channel, and means for applying gain to the outputs of these filter channels in which the gain is related to a function of the second-order derivative of the slow-varying envelope signal in each filter channel, to assist in perception of low-intensity short-duration speech features in said signal.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: May 15, 2007
    Inventors: Andrew E. Vandali, Graeme M. Clark
  • Spectral maxima sound processor
    Patent number: 5597380
    Abstract: An improved sound processor, with particular application to stimulation of implanted electrode arrays, such as cochlear implants. The processor channelizes received sound signals into at least ten analysis channels to produce amplitude signals for each channel. A predefined number of channels with the largest amplitude are used to modulate stimuli for the implanted array. The predefined number is at least four, and less than or equal to half the number of analysis channels.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: January 28, 1997
    Assignee: Cochlear Ltd.
    Inventors: Hugh J. McDermott, Andrew E. Vandali