The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2017
Filed:
Oct. 22, 2013
Interactive Intelligence, Inc., Indianapolis, IN (US);
Felix Immanuel Wyss, Zionsville, IN (US);
Rivarol Vergin, Indianapolis, IN (US);
Ananth Nagaraja Iyer, Carmel, IN (US);
Aravind Ganapathiraju, Hyderabad, IN;
Kevin Charles Vlack, Ballwin, MO (US);
Srinath Cheluvaraja, Carmel, IN (US);
Interactive Intelligence Group, Inc., Indianapolis, IN (US);
Abstract
A system and method are presented for acoustic echo cancellation. The echo canceller performs reduction of acoustic and hybrid echoes which may arise in a situation such as a long-distance conference call with multiple speakers in varying environments, for example. Echo cancellation, in at least one embodiment, may be based on similarity measurement, statistical determination of echo cancellation parameters from historical values, frequency domain operation, double talk detection, packet loss detection, signal detection, and noise subtraction.