A system management device (501) notifies to drive a seat. A seat detector (582) detects that a seat position is in its actual usage state, a control speaker (340) outputs white noise generated by a white noise generator (337), and an acoustic transfer function including the path from the control speaker (340) to an error microphone (350) is identified by detecting this white noise with the error microphone (350). The system management device (501) also notifies an identification controller (538) of the initial values of the acoustic transfer function and a filter coefficient.
NOISE REDUCTION DEVICE AND NOISE REDUCTION SYSTEM
RAUSCHVERRINGERUNGSVORRICHTUNG UND RAUSCHVERRINGERUNGSSYSTEM
DISPOSITIF ET SYSTÈME DE RÉDUCTION DU BRUIT
2025-02-19
Patent
Electronic Resource
English
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler |
NOISE REDUCTION DEVICE, VEHICLE, NOISE REDUCTION SYSTEM, AND NOISE REDUCTION METHOD
European Patent Office | 2021
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