公开(公告)号：US20250071480A1

公开(公告)日：2025-02-27

申请号：US18237904

申请日：2023-08-25

Applicant: MediaTek Singapore Pte. Ltd.

Inventor： BOZHONG LIU ,  Xiaoxi Yu ,  HANTAO HUANG

IPC: H04R3/02 ,  G06N3/0895

Abstract: A method and an electronic device for training a complex neural model of acoustic echo cancellation (AEC) are provided. The method includes: generating an anchor audio pair, a positive audio pair and a negative audio pair according to multiple near-end signals and multiple acoustic echo signals; utilizing the complex neural model to extract an anchor audio feature, a positive audio feature and a negative audio feature from the anchor audio pair, the positive audio pair and the negative pair, respectively; calculating a loss function according to the anchor audio feature, the positive audio feature and the negative audio feature; and tuning at least one parameter of the complex neural model according to the loss function.

公开(公告)号：US20250055574A1

公开(公告)日：2025-02-13

申请号：US18791085

申请日：2024-07-31

Applicant: ACON OPTICS COMMUNICATIONS INC.

Inventor： Lung-Chang Chen

IPC: H04B10/69 ,  H04B10/25 ,  H04R3/02

Abstract: An audio signal transmission device, an audio signal transmission method, an audio signal reception device, an audio signal reception method, and an audio system are provided. The audio signal transmission method includes: receiving an audio signal and generating a low-noise buffer signal by a low-noise buffer element; converting the low-noise buffer signal into a digital signal by an analog-to-digital conversion element; serializing a digital signal to output one or more serialized digital signals by a serializer element; and converting the one or more the serialized digital signals into one or more optical signals by an optical interface transmission device. The audio signal reception method includes: receiving and converting one of the at least one optical signal and outputting an electrical signal by the optical interface reception device; and deserializing the electrical signal and outputting the deserialized digital signal by the deserializer element.

公开(公告)号：US12223941B2

公开(公告)日：2025-02-11

申请号：US17694845

申请日：2022-03-15

Applicant: GOOGLE LLC

Inventor： Sangtak Park ,  Isaac James Deroche

IPC: G10K11/178 ,  G01H9/00 ,  G01H13/00 ,  G02B26/08 ,  G02B27/01 ,  H04N9/31 ,  H04R1/28 ,  H04R3/02 ,  H04R3/04

Abstract: Systems, devices, and methods are described for mitigating or eliminating distortion patterns (such as those caused by one or more high-volume audio sources) in a display system such as a laser projection system. Frequency components of an incoming sound that correspond to one or more resonant frequencies of an optical reflector of the display system are determined to exceed a defined volume threshold. Responsive to that determination, a magnitude and phase of one or more harmonic motions of the optical reflector are measured. Sound waves are generated to destructively interfere with at least one frequency component corresponding to the resonant frequencies of the optical reflector.

公开(公告)号：US20250039591A1

公开(公告)日：2025-01-30

申请号：US18914090

申请日：2024-10-12

Applicant: SHENZHEN SHOKZ CO., LTD.

Inventor： Lei ZHANG ,  Junjiang FU ,  Bingyan YAN ,  Fengyun LIAO ,  Xin QI

IPC: H04R1/10 ,  G02C11/00 ,  G02C11/06 ,  G06F3/16 ,  G10L21/0208 ,  G10L21/0216 ,  G10L21/038 ,  H04M1/03 ,  H04M1/78 ,  H04R1/02 ,  H04R1/22 ,  H04R1/24 ,  H04R1/26 ,  H04R1/28 ,  H04R1/34 ,  H04R1/38 ,  H04R1/44 ,  H04R3/00 ,  H04R3/02 ,  H04R5/02 ,  H04R5/033 ,  H04R9/06 ,  H04S7/00 ,  H04W4/80

Abstract: The present disclosure relates to an acoustic output apparatus. The acoustic output apparatus comprising: at least one low-frequency acoustic driver that outputs sound from at least two first sound guiding holes; at least one high-frequency acoustic driver that outputs sound from at least two second sound guiding holes; and a controller configured to cause the low-frequency acoustic driver to output sound in a first frequency range, and cause the high-frequency acoustic driver to output sound in a second frequency range, wherein the second frequency range includes frequencies higher than the first frequency range.

公开(公告)号：US20240422466A1

公开(公告)日：2024-12-19

申请号：US18814576

申请日：2024-08-25

Applicant: SHENZHEN SHOKZ CO., LTD.

Inventor： Lei ZHANG ,  Junjiang FU ,  Bingyan YAN ,  Fengyun LIAO ,  Xin QI

IPC: H04R1/10 ,  G02C11/00 ,  G02C11/06 ,  G06F3/16 ,  G10L21/0208 ,  G10L21/0216 ,  G10L21/038 ,  H04M1/03 ,  H04M1/78 ,  H04R1/02 ,  H04R1/22 ,  H04R1/24 ,  H04R1/26 ,  H04R1/28 ,  H04R1/34 ,  H04R1/38 ,  H04R1/44 ,  H04R3/00 ,  H04R3/02 ,  H04R5/02 ,  H04R5/033 ,  H04R9/06 ,  H04S7/00 ,  H04W4/80

Abstract: The present disclosure relates to a waterproof open earphone. The waterproof open earphone may include a housing, at least one button, at least one elastic pad, and at least one pair of speaker units. The housing may be placed on a head or at least one ear of a user while not blocking an ear canal of the user. The at least one button may be set on the housing, wherein each of the at least one button corresponds to a button hole. The at least one elastic pad may correspond to the at least one button, respectively, wherein each elastic pad prevents the corresponding button from moving relative to the button hole. Each pair of the at least one pair of speaker units may generate sound within a frequency range from two sound guiding holes through two sound guiding tubes.

公开(公告)号：US20240405738A1

公开(公告)日：2024-12-05

申请号：US18802232

申请日：2024-08-13

Applicant: D'Amore Engineering, LLC

Inventor： Anthony T. D'Amore ,  Juan Rodriguez

IPC: H03G3/30 ,  G06F3/16 ,  H03F3/183 ,  H04R3/02

Abstract: An amplifier power attenuator utilizes an amplified audio feedback signal from an audio amplifier (which is driving a loudspeaker), along with a user-set impedance and a maximum voltage set-point reflective of the operational parameters of the loudspeaker, to attenuate an audio signal prior to amplification thereby preventing damage to the loudspeaker. The impedance of a variable impedance optocoupler is changed to adjust the attenuation of the audio signal to one of a plurality of predetermined attenuation levels responsive to an error between a voltage level of the feedback signal and the maximum voltage set-point. The error is reflected in a counter value having a linear or non-linear relationship with the error dependent upon a magnitude of the error; the counter value is assessed against a plurality of target values associated with respective ones of the predetermined attenuation levels to identify the attenuation to be applied to the audio signal.

公开(公告)号：US12160696B2

公开(公告)日：2024-12-03

申请号：US18502124

申请日：2023-11-06

Applicant: SHENZHEN SHOKZ CO., LTD.

Inventor： Lei Zhang ,  Junjiang Fu ,  Bingyan Yan ,  Fengyun Liao ,  Xin Qi

IPC: H04R1/10 ,  G02C11/00 ,  G06F3/16 ,  G10L21/0208 ,  G10L21/038 ,  H04M1/03 ,  H04M1/78 ,  H04R1/02 ,  H04R1/22 ,  H04R1/24 ,  H04R1/26 ,  H04R1/28 ,  H04R1/34 ,  H04R1/38 ,  H04R1/44 ,  H04R3/00 ,  H04R3/02 ,  H04R5/02 ,  H04R5/033 ,  H04R9/06 ,  H04S7/00 ,  H04W4/80 ,  G02C11/06 ,  G10L21/0216

Abstract: The present disclosure discloses an acoustic output apparatus. The acoustic output apparatus may include at least one acoustic driver. The at least one acoustic driver may generate sound that is output through at least two sound guiding holes. Further, the acoustic output apparatus may include a supporting structure. The supporting structure may be configured to support the at least one acoustic driver. A baffle may be disposed between the at least two sound guiding holes. The baffle may increase an acoustic distance from at least one sound guiding hole of the at least two sound guiding holes to a user's ear.

公开(公告)号：US12156003B2

公开(公告)日：2024-11-26

申请号：US17960692

申请日：2022-10-05

Applicant: Knowles Electronics, LLC

Inventor： Jakob Kenn Toft ,  Mohammad Shajaan ,  Claus Erdmann Fürst

IPC: H04R3/02 ,  B81B3/00 ,  B81B7/00 ,  H02M3/07 ,  H04R1/04 ,  H04R3/04 ,  H04R7/04 ,  H04R19/04

Abstract: The present disclosure relates to a transducer assembly including a transducer having a movable member, and a servo-loop controller configured to compensate for effects of a disturbance on the transducer assembly by adjusting a bias voltage applied to the transducer. A servo-loop controller having a smaller bandwidth for out-of-band disturbances than for in-band disturbances and configured to control the bias voltage based on a feedback signal generated by a sensor that detects an effect of the disturbance on the transducer assembly. The transducer assembly can be implemented as a microphone or a speaker among other sensors and actuators.

公开(公告)号：US12149899B2

公开(公告)日：2024-11-19

申请号：US17847319

申请日：2022-06-23

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Dayong Zhou ,  Brad Zwernemann ,  Kaichow Lau ,  Dana J. Taipale ,  John L. Melanson

IPC: H04R3/02

Abstract: Circuitry for acoustic crosstalk cancellation between first and second acoustic signals, the circuitry comprising: crosstalk cancellation circuitry configured to: receive a first audio signal and, based on the received first audio signal, generate a first crosstalk cancellation signal; receive a second audio signal and, based on the received second audio signal, generate a second crosstalk cancellation signal; combine the first crosstalk cancellation signal with a signal indicative of the second audio signal to generate a first crosstalk cancellation circuitry output signal; and combine the second crosstalk cancellation signal with a signal indicative of the first audio signal to generate a second crosstalk cancellation circuitry output signal; and output stage circuitry configured to: receive the first crosstalk cancellation circuitry output signal and, based on the received first crosstalk cancellation circuitry, generate a first drive signal for driving a first speaker to generate the first acoustic signal; and receive the second crosstalk cancellation circuitry output signal and, based on the received second crosstalk cancellation circuitry, generate a second drive signal for driving a second speaker to generate the second acoustic signal, wherein a parameter of the crosstalk cancellation circuitry is variable based on one or more of: a position of a user of a host device incorporating the circuitry with respect to the host device; a volume setting of the host device; a level of the first and/or second crosstalk cancellation signal; and an operational parameter of the output stage circuitry.

公开(公告)号：US20240373164A1

公开(公告)日：2024-11-07

申请号：US18776715

申请日：2024-07-18

Applicant: EPOS Group A/S

Inventor： Anders Røser HANSEN ,  Stig PETRI ,  Svend FELDT ,  Poul Peder HESTBEK ,  Casper FYNSK ,  Mirjana ADNADJEVIC

IPC: H04R3/02 ,  G10K11/178 ,  H04M1/60 ,  H04R1/02

Abstract: A method is disclosed, the method comprising obtaining at least one first information indicative of audio data gathered by at least one first microphone, and at least one second information indicative of audio data gathered by at least one second microphone; determining a differential information indicative of one or more differences between at least two pieces of information, wherein the differential information is determined based, at least in part, on the at least one first information and the at least one second information; and compensating of an impact onto the audio data, wherein audio data of the first information and/or the second information is compensated based, at least in part, on the determined differential information. Further, an apparatus, and a system are disclosed.