Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Noritaka Kokido0
Takuya Taniguchi0
Shin Kato0
Date of Patent
February 4, 2014
Patent Application Number
13340949
Date Filed
December 30, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
An echo canceler 10 generates an echo elimination signal by filtering through adaptive filters 101 and 102 reference signals input from sound sources causing echoes. It includes a sound source number detecting unit 103 for detecting the number of the sound sources causing echoes from the reference signals, and a control unit 105 for making the number of taps of the adaptive filters 101 and 102 variable in accordance with the number of the sound sources detected by the sound source number detecting unit 103.
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