Echo cancellation/suppression and double-talk detection in communication paths
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 1, 2007
Grant Date -
Dec 9, 2004
app pub date -
Jan 26, 2004
filing date -
Jan 31, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of suppressing an echo signal in a communication path such as acoustic coupling between a speaker and a microphone in a telephone device handset includes the steps of monitoring a transmitted signal supplied to the communication path to determine an attribute thereof; generating a leaky mask based on the determined attribute and an attribute of a received echo signal; and partially cancelling the received echo signal using the leaky mask.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully