Patents by Inventor Estelle Sonnic

Estelle Sonnic 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).

  • Method and device for detecting voice activity
    Patent number: 6154721
    Abstract: The invention relates to a device intended for detecting in successive frames containing voice signals mixed with noise from various sources the periods of speech and those of only noise. By calculating for each frame its energy and the zero-crossing rate of its centered noise signal and by comparing these magnitudes with adaptive threshold values, the real state of the device is detected, which leads to specific controls adapted for each state.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: November 28, 2000
    Assignee: U.S. Philips Corporation
    Inventor: Estelle Sonnic