G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 21/02 (2006.01) H04B 15/00 (2006.01)
Patent
CA 2571768
A method for detecting and attenuating inhalation noise in a communication system coupled to a pressurized air delivery system, the method including the steps of: generating an inhalation noise model (912, 1012) based on inhalation noise; receiving an input signal (802) that includes inhalation noise; comparing (810) the input signal to the noise model to obtain a similarity measure; determining (854) a gain factor based on the similarity measure; and modifying (852) the input signal based on the gain factor, wherein the inhalation noise in the input signal is attenuated based on the gain factor.
L'invention porte sur un procédé de détection et d'atténuation du bruit pulmonaire dans un système de communication couplé à un système d'administration d'air sous pression, ce procédé consistant à: générer un modèle de bruit pulmonaire (912, 1012) sur la base du bruit pulmonaire; recevoir un signal d'entrée (802) comprenant le bruit pulmonaire; comparer (810) le signal d'entrée au modèle du bruit afin d'obtenir une mesure de similarité; déterminer (854) un facteur de gain sur la base de la mesure de similarité et modifier (852) le signal d'entrée sur la base du facteur de gain, le bruit pulmonaire dans le signal d'entrée étant atténué sur la base du facteur de gain.
Harton Sara M.
Jasiuk Mark A.
Kushner William M.
Gowling Lafleur Henderson Llp
Motorola Inc.
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