Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
John O. DellaMorte, Jr.0
James Thomas DellaMorte, Sr.0
Date of Patent
November 11, 2008
Patent Application Number
10780501
Date Filed
February 17, 2004
Patent Primary Examiner
Patent abstract
An echo suppression technique is provided in which speech sample energies are collected and accumulated over predetermined time frames. From this, a peak aggregate value and time delay are noted. This peak is generated by mathematical correlation between the historical output speech and the input speech. A moving average is applied to the results of the mathematical correlation. Once the time delay and gain are determined, the algorithm of the present invention uses this information to determine if an input sample is echo or a valid input, and if it is echo, the echo is suppressed.
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