Communication system with active noise cancellation

Details Communication system with active noise cancellation Communication system with active noise cancellation

H - Electricity

04

M

179/5, 379/86

H04M 9/00 (2006.01) G01R 33/385 (2006.01) G10K 11/178 (2006.01)

Patent

CA 2021676

ABSTRACT An active acoustic attenuation system (10) is provided with various adaptive filter models (40, 48, 56, 70, 84, 100) enabling communication between persons (26, 30) in spaced zones (12, 16) by selectively cancelling undesired noise and undesired speech, all on an on-line basis without dedicated off-line pretraining and also for both broadband and narrowband noise.

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