PolyU IR
 

PolyU Institutional Repository >
Applied Mathematics >
AMA Patents >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/86

Title: Echo canceller
Authors: Yiu, Ka-fai Cedric
Huo, Jiaquan
Teo, Kok Lay
Subjects: Echo canceller
Issue Date: 20-Sep-2005
Citation: US Patent 6,947,549 B2. Washington, DC: US Patent and Trademark Office, 2005.
Abstract: An echo canceller includes two parallel filters and a controller. The controller chooses the best of the two filters for the final echo cancellation. The filter coefficients are exchanged between the two filters constantly so that both filters retain performance all the time even if double-talk and echo path variations occur very closely in time. One filter is strongly robust and will not diverge during double-talk, and another filter is weakly robust and will converge rapidly during echo path variation.
Rights: Assignee: The Hong Kong Polytechnic University.
Type: Patent
URI: http://hdl.handle.net/10397/86
Appears in Collections:AMA Patents
Patents of PolyU

Files in This Item:

File Description SizeFormat
us6947549b2.pdf833.4 kBAdobe PDFView/Open



Facebook Facebook del.icio.us del.icio.us LinkedIn LinkedIn


All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
No item in the PolyU IR may be reproduced for commercial or resale purposes.

 

© Pao Yue-kong Library, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
Powered by DSpace (Version 1.5.2)  © MIT and HP
Feedback | Privacy Policy Statement | Copyright & Restrictions - Feedback