Adaptive operations of a first noise control system and a second noise control system may include a speaker that outputs noise cancellation sound, a microphone that detects an error signal, an auxiliary filter that generates, from a noise signal, a correction signal that corrects the error signal so that a difference in a position between the microphone and a noise cancellation position is compensated, and an adaptive filter that performs an adaptive operation using the corrected error signal to generate the noise cancellation sound from the noise signal are alternately performed. A transfer function learned in a state in which the second noise control system is stopped is set in the auxiliary filter of the first noise control system, and a transfer function learned in a state in which the adaptive operation of the first noise control system is stopped is set in the auxiliary filter of the second noise control system.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Active noise control system utilizing noise cancellation sounds


    Beteiligte:

    Erscheinungsdatum :

    2023-04-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / H04S Stereophone Systeme , STEREOPHONIC SYSTEMS




    ACTIVE NOISE CANCELLATION DEVICE

    KATO YOSHINAO / SUZUKI TOSHIYUKI | Europäisches Patentamt | 2019

    Freier Zugriff

    ACTIVE NOISE CANCELLATION DEVICE

    KATO YOSHINAO / SUZUKI TOSHIYUKI | Europäisches Patentamt | 2019

    Freier Zugriff

    Active Flexible Noise Cancellation

    Rogers, S. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2009


    Active Flexible Noise Cancellation

    Rogers, Steven | AIAA | 2009