ACTIVE NOISE CANCELLATION DEVICE
The disclosure relates to an active noise cancellation device (100) for cancelling a primary acoustic path (101) between a noise source (102) and a microphone (103) by an overlying secondary acoustic path (105) between a canceling loudspeaker (107) and the microphone (103), the device comprising: a...
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| creator | SONG, Yang DZHIGAN, Victor Ivanovich QIN, Jingfan PETROVSKY, Alexey Alexandrovich |
| description | The disclosure relates to an active noise cancellation device (100) for cancelling a primary acoustic path (101) between a noise source (102) and a microphone (103) by an overlying secondary acoustic path (105) between a canceling loudspeaker (107) and the microphone (103), the device comprising: a first input (104) for receiving a microphone signal from the microphone (103); wherein the first electrical compensation path (111) and the second electrical compensation path (121) are coupled in parallel between a first node (140) and the first input (104) to provide the first noise canceling signal (106) for a feed-backward prediction of the noise source (102); wherein the third electrical compensation path (211) and the fourth electrical compensation path (221) are coupled in parallel between a second node (240) and the first input (104) to provide the second noise canceling signal (206) for a feed-forward prediction of noise source (102). |
| format | Patent |
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wherein the first electrical compensation path (111) and the second electrical compensation path (121) are coupled in parallel between a first node (140) and the first input (104) to provide the first noise canceling signal (106) for a feed-backward prediction of the noise source (102); wherein the third electrical compensation path (211) and the fourth electrical compensation path (221) are coupled in parallel between a second node (240) and the first input (104) to provide the second noise canceling signal (206) for a feed-forward prediction of noise source (102).</description><language>eng ; fre ; ger</language><subject>ACOUSTICS ; ACOUSTICS NOT OTHERWISE PROVIDED FOR ; DEAF-AID SETS ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL ; MUSICAL INSTRUMENTS ; PHYSICS ; PUBLIC ADDRESS SYSTEMS ; 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wherein the first electrical compensation path (111) and the second electrical compensation path (121) are coupled in parallel between a first node (140) and the first input (104) to provide the first noise canceling signal (106) for a feed-backward prediction of the noise source (102); wherein the third electrical compensation path (211) and the fourth electrical compensation path (221) are coupled in parallel between a second node (240) and the first input (104) to provide the second noise canceling signal (206) for a feed-forward prediction of noise source (102).</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS PUBLIC ADDRESS SYSTEMS SOUND-PRODUCING DEVICES |
| title | ACTIVE NOISE CANCELLATION DEVICE |
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