Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Echo canceler










Image Number 6 for United States Patent #8130941.

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.








 
 
  Recently Added Patents
Therapeutic compositions and methods
Wristwatch
Control device
Method of and apparatus for evaluating an optimal irradiation amount of an electron beam for drawing a pattern onto a sample
LED lighting module
Zoom lens
Die packages and systems having the die packages
  Randomly Featured Patents
Planographic printing plate precursor, substrate for the same and surface hydrophilic material
Radio communication system
Voice integrated VOIP system
Image recording apparatus
Method and apparatus for pyrolysis of atactic polypropylene
Multi-piece vehicle wheel cover retention system and method for producing same
Adaptive or a priori filtering for detection of signals corrupted by noise
Stress relieved metal/ceramic abradable seals
Energy conversion
Boat hull