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    전자 장치 및 전자 장치의 동작 방법
    1.
    发明申请
    전자 장치 및 전자 장치의 동작 방법 审中-公开

    公开(公告)号：WO2023085872A1

    公开(公告)日：2023-05-19

    申请号：PCT/KR2022/017815

    申请日：2022-11-14

    Applicant: 삼성전자주식회사

    Inventor： 김춘호 ,  김강열 ,  김기태 ,  김무열 ,  김미향 ,  김태빈 ,  이유훈

    IPC: H04R3/00 ,  H04R3/02 ,  H04R1/40 ,  G10L21/02

    Abstract: 전자 장치가 제공된다. 상기 전자 장치는 전자 장치에서 상이한 위치들에 배치된 복수의 마이크들, 마이크들 각각에 입력되는 입력 신호들을 수집하고, 입력 신호들로부터 마이크들 각각에 대응하는 DOA 정보를 획득하고, DOA 정보를 이용하여 입력 신호들의 발생 방향들을 산출하고, 입력 신호들의 발생 방향들에 기초하여 마이크들 별 입력 신호의 가중치를 조절하고, 마이크들 별로 조절된 가중치를 반영하여 마이크들 별 출력 신호를 생성하는 프로세서, 및 마이크들 별 출력 신호를 출력하는 스피커를 포함할 수 있다.

    ADAPTIVE FEEDBACK CANCELATION AND ENTRAINMENT MITIGATION
    3.
    发明申请
    ADAPTIVE FEEDBACK CANCELATION AND ENTRAINMENT MITIGATION 审中-公开

    公开(公告)号：WO2023049064A1

    公开(公告)日：2023-03-30

    申请号：PCT/US2022/043955

    申请日：2022-09-19

    Applicant: META PLATFORMS TECHNOLOGIES, LLC

    Inventor： LUNNER, Thomas ,  MALIK, Sarmad

    IPC: H04R3/02 ,  H04R25/00

    Abstract: An audio system for artificial reality systems is configured to reduce feedback and mitigate entrainment in audio content presented to the user. The audio system utilizes adaptive feedback cancellation processes to reduce feedback. The audio system processes reference signals in a hybrid of the time domain and the frequency domain to achieve rapid convergence with decreased entrainment. The audio system may pre-whiten reference signals and speaker signals and separate the pre-whitened signals into frequency bands using a filter bank. The audio system uses a state space algorithm to generate adaptive filters in each frequency band. The adaptive filters may be applied to the speaker signal to generate a feedback cancelation signal which may be subtracted from the reference signal to decrease feedback.

    VORRICHTUNG UND VERFAHREN ZUM ERZEUGEN EINES ANSTEUERSIGNALS FÜR EINEN SCHALLERZEUGER ODER ZUM ERZEUGEN EINES ERWEITERTEN MEHRKANALAUDIOSIGNALS UNTER VERWENDUNG EINER ÄHNLICHKEITSANALYSE
    5.
    发明申请
    VORRICHTUNG UND VERFAHREN ZUM ERZEUGEN EINES ANSTEUERSIGNALS FÜR EINEN SCHALLERZEUGER ODER ZUM ERZEUGEN EINES ERWEITERTEN MEHRKANALAUDIOSIGNALS UNTER VERWENDUNG EINER ÄHNLICHKEITSANALYSE 审中-公开

    公开(公告)号：WO2022253768A1

    公开(公告)日：2022-12-08

    申请号：PCT/EP2022/064637

    申请日：2022-05-30

    Applicant: KAETEL SYSTEMS GMBH

    Inventor： KAETEL, Klaus

    IPC: H04R3/12 ,  H04R3/00 ,  H04S3/00 ,  H04R3/02

    Abstract: Vorrichtung zum Erzeugen eines Ansteuersignals für einen Schallerzeuger, mit folgenden Merkmalen: einem Gegentaktsignalerzeuger (1010, 80) zum Erzeugen eines Gegentaktsignals (1011) aus einem ersten Kanalsignal (1001, 71, 306) und einem zweiten Kanalsignal (1002, 308) eines Mehrkanalaudiosignals; einem steuerbaren Verstärker (1020) zum Verstärken oder Dämpfen des Gegentaktsignals (1011) mit einer einstellbaren Verstärkung oder Dämpfung gemäß einem Einstellwert, wobei die Vorrichtung ausgebildet ist, um das Ansteuersignal aus einem Ausgangssignal (1036, 72) des steuerbaren Verstärkers (1030) zu ermitteln; und einer Steuerung (1020) zum Bestimmen des Einstellwerts, wobei die Steuerung (1020) ausgebildet ist, um bei einer ersten Ähnlichkeit zwischen dem ersten Kanalsignal und dem zweiten Kanalsignal einen ersten Einstellwert zu bestimmen und bei einer zweiten Ähnlichkeit zwischen dem ersten Kanalsignal und dem zweiten Kanalsignal einen zweiten Einstellwert zu bestimmen, wobei die erste Ähnlichkeit eine niedrigere Ähnlichkeit als die zweite Ähnlichkeit darstellt, und wobei der erste Einstellwert eine kleinere Verstärkung als der zweite Einstellwert oder eine größere Dämpfung als der zweite Einstellwert darstellt.

    TONE DETECTION IN HEARING DEVICE AUDIO SIGNALS
    6.
    发明申请
    TONE DETECTION IN HEARING DEVICE AUDIO SIGNALS 审中-公开

    公开(公告)号：WO2022225535A1

    公开(公告)日：2022-10-27

    申请号：PCT/US2021/028989

    申请日：2021-04-23

    Applicant: EARGO, INC. ,  STEELE, Brenton ,  SORENSEN, Bryant, E.

    Inventor： STEELE, Brenton ,  SORENSEN, Bryant, E.

    IPC: H04R25/00 ,  H04R3/02 ,  H04R1/10 ,  G10L25/93

    Abstract: Methods, devices and systems for signal processing an audio signal in a hearing device to determine whether the signal is tonal. The signal is converted at each of a series of successive time windows into samples in the frequency domain across multiple subbands. For at least one of the subbands, a normalized cross-correlation is calculated between two different samples in the same subband. A metric resulting from the calculation is compared to a predetermined threshold to provide a measure of whether the signal is tonal. The signal is considered to be tonal in the frequency of the subband when the metric is greater than or equal to the predetermined threshold, and the signal is considered to be not tonal in the frequency of the subband when the metric is less than the predetermined threshold.

    エコー抑圧装置、エコー抑圧方法及びエコー抑圧プログラム
    7.
    发明申请
    エコー抑圧装置、エコー抑圧方法及びエコー抑圧プログラム 审中-公开

    公开(公告)号：WO2022202012A1

    公开(公告)日：2022-09-29

    申请号：PCT/JP2022/006655

    申请日：2022-02-18

    Applicant: 株式会社トランストロン

    Inventor： 里見　祐樹

    IPC: H04R3/02 ,  G10L21/0216 ,  G10L21/0232 ,  H04M1/00

    Abstract: 非線形エコー成分が大きい場合であっても、エコー抑圧量を周波数毎に正確に推定することができる。　受話信号の各周波数における大きさの対数と、受話信号の周波数と、受話信号の大きさの総和又は任意の周波数範囲における受話信号の送話である総受話値の対数と、総受話値のエンベロープの対数とを変数とする推定エコー関数が記憶されている。推定エコーを表す関数に第２受話信号（受話信号を周波数の領域に変換した結果）の値を入力してエコー抑圧用マスクを生成し、このエコー抑圧用マスクに基づいて算出されるエコー抑圧ゲインを第２送話信号（送話信号を周波数の領域に変換した結果）に乗じることでエコー抑圧処理を行う。

    EAR-MOUNTABLE LISTENING DEVICE WITH MULTIPLE TRANSDUCERS
    8.
    发明申请
    EAR-MOUNTABLE LISTENING DEVICE WITH MULTIPLE TRANSDUCERS 审中-公开

    公开(公告)号：WO2022197563A1

    公开(公告)日：2022-09-22

    申请号：PCT/US2022/020073

    申请日：2022-03-11

    Applicant: IYO INC.

    Inventor： UNRUH, Andrew ,  CARLILE, Simon ,  RUGOLO, Jason

    IPC: H04R1/10 ,  H04R5/04 ,  H04R3/02 ,  H04R1/40

    Abstract: An ear-mountable listening device includes a plurality of electroacoustic transducers, a manifold, and an output port. The plurality of electroacoustic transducers emit audio in response to an audio signal. The plurality of electroacoustic transducers includes a first transducer and a second transducer. The manifold is coupled to the plurality of electroacoustic transducers. The manifold is shaped to position the first transducer and the second transducer to face one another and form a front cavity disposed between the first transducer and the second transducer. The output port is coupled to the manifold to direct the audio from the front cavity into an ear when the plurality of electroacoustic transducers emits the audio.

    ACOUSTIC FEEDBACK REDUCTION IN CO-LOCATED AUDIOCONFERENCING DEVICES
    9.
    发明申请
    ACOUSTIC FEEDBACK REDUCTION IN CO-LOCATED AUDIOCONFERENCING DEVICES 审中-公开

    公开(公告)号：WO2022140557A1

    公开(公告)日：2022-06-30

    申请号：PCT/US2021/064883

    申请日：2021-12-22

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： FANG, Qianqian ,  LI, Kai ,  GUO, Yanmeng ,  HUANG, Wei ,  LIU, Yang

    IPC: H04R3/02 ,  H04M3/56 ,  H04M3/00 ,  H04M9/08

    Abstract: Disclosed is a method for managing acoustic feedback in real-time audio communications in a communications system, the method comprising determining, by means of a detection module, whether a first communication device is in loudspeaker mode, whether the first communication device is in real-time audio communications with a second communication, and whether the first communication device and the second communication device are in a same acoustic space. Upon determining that this is the case a request signal for requesting one or more measures against acoustic feedback is provided to a mitigation module. Further disclosed are a device and a system configured to perform the method, a non-transitory computer-readable medium, an encoder and a decoder.

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