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    Loudspeaker with reduced audio coloration caused by reflections from a surface
    1.
    发明授权
    Loudspeaker with reduced audio coloration caused by reflections from a surface 有权

    公开(公告)号：US12192698B2

    公开(公告)日：2025-01-07

    申请号：US18377261

    申请日：2023-10-05

    Applicant: APPLE INC.

    Inventor： Martin E. Johnson ,  Simon K. Porter ,  Suzanne Hardy ,  John H. Sheerin

    IPC: H04R1/28 ,  H04R1/02 ,  H04R1/26 ,  H04R1/40 ,  H04R3/14

    Abstract: Loudspeakers are described that may reduce comb filtering effects perceived by a listener by either 1) moving transducers closer to a sound reflective surface (e.g., a baseplate, a tabletop or a floor) through vertical (height) or rotational adjustments of the transducers or 2) guiding sound produced by the transducers to be released into the listening area proximate to the reflective surface through the use of horns and openings that are at a prescribed distance from the reflective surface. The reduction of this distance between the reflective surface and the point at which sound emitted by the transducers is released into the listening area may lead to shorter reflected path that reduces comb filtering effects caused by reflected sounds that are delayed relative to the direct sound. Accordingly, the loudspeakers shown and described may be placed on reflective surfaces without severe audio coloration caused by reflected sounds.

    Spectrally orthogonal audio component processing
    2.
    发明授权
    Spectrally orthogonal audio component processing 有权

    公开(公告)号：US12149901B2

    公开(公告)日：2024-11-19

    申请号：US17890213

    申请日：2022-08-17

    Applicant: Boomcloud 360 Inc.

    Inventor： Zachary Seldess

    IPC: H04R3/14 ,  G06F17/14 ,  G06N20/00 ,  G10L19/02 ,  H04R3/04 ,  H04R5/04 ,  H04S7/00

    Abstract: A system processes an audio signal using spectrally orthogonal sound components. The system includes a circuitry that generates a mid component and a side component from a left channel and a right channel of the audio signal. The circuitry generates a hyper mid component including spectral energy of the side component removed from spectral energy of the mid component. The circuitry filters the hyper mid component, such as to provide spatial cue processing including panning or binaural processing, dynamic range processing, or other types of processing. The circuitry generates a left output channel and a right output channel using the filtered hyper mid component.

    Systems and methods for crosstalk reduction for audio communications
    3.
    发明授权
    Systems and methods for crosstalk reduction for audio communications 有权

    公开(公告)号：US12143541B2

    公开(公告)日：2024-11-12

    申请号：US18456816

    申请日：2023-08-28

    Applicant: H.M. Electronics, Inc.

    Inventor： Daniel Gish ,  Charles Butten

    IPC: H04M1/60 ,  H04M9/00 ,  H04M9/08 ,  H04R3/14 ,  H04S3/00

    Abstract: Systems and methods for operating a multi-channel intercom system for audio communications between users, with reduced crosstalk, are disclosed. Exemplary implementations may: receive, by a first user station, a modulation carrier signal; capture a first audio signal from a first user, wherein the first audio signal has a first phase; at a rate based on the modulation carrier signal, invert the first phase of the first audio signal to generate a phase-flipped audio signal; transfer the phase-flipped audio signal to a second user station; at a second rate based on the modulation carrier signal, invert a phase of the phase-flipped audio signal to generate an intermediate audio signal; and present a second audio signal based on the intermediate audio signal to the second user.

    Voice control device and voice control system
    6.
    发明授权
    Voice control device and voice control system 有权

    公开(公告)号：US12039992B2

    公开(公告)日：2024-07-16

    申请号：US17627398

    申请日：2020-07-14

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Junji Araki ,  Satoshi Abe ,  Takahiro Yamaguchi ,  Kenichi Kubota

    IPC: G10L21/0232 ,  G10L15/22 ,  H04R3/12 ,  G10K11/178 ,  H04R3/14

    CPC classification number: G10L21/0232 ,  G10L15/22 ,  H04R3/12 ,  G10K11/178 ,  G10L2015/223 ,  H04R3/14

    Abstract: The voice control device includes a sound source signal input unit, a frequency determination unit, a band controller, a sound image controller, and a voice output unit. The sound source signal input unit inputs a sound source signal of content from a sound source. The frequency determination unit determines a cutoff frequency. The band controller acquires a high frequency signal in a frequency band equal to or higher than the cutoff frequency and a low frequency signal in a frequency band equal to or lower than the cutoff frequency, from the sound source signal of the content. The sound image controller generates a plurality of sound image control signals for controlling sound images of the plurality of speakers, by controlling at least one of a phase and a sound pressure level of the high frequency signal. The voice output unit outputs the low frequency signal to a first speaker, and outputs the plurality of sound image control signals to a second speaker composed of a plurality of speakers.

    Electronic device including speaker and microphone
    7.
    发明授权
    Electronic device including speaker and microphone 有权

    公开(公告)号：US12035116B2

    公开(公告)日：2024-07-09

    申请号：US17685817

    申请日：2022-03-03

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Haekeu Park ,  Juhee Chang ,  Hyeonyeong Jeong

    IPC: H04R3/02 ,  H04R1/10 ,  H04R1/26 ,  H04R3/14

    CPC classification number: H04R3/02 ,  H04R1/1075 ,  H04R1/1083 ,  H04R1/26 ,  H04R3/14 ,  H04R1/1016

    Abstract: A wearable electronic device is provided. The wearable electronic device includes a speaker and a microphone, and more particularly, to a wearable electronic device worn on the user's ear. Various embodiments of the disclosure may provide a wearable electronic device including a first speaker configured to radiate a sound in a first frequency range, a second speaker configured to radiate a sound in a second frequency range higher than the first frequency range, a microphone, and a housing configured to accommodate the first speaker, the second speaker, and the microphone therein. The housing may include a sound path configured to serve as a path through which sounds radiated from the first speaker and the second speaker move, and a recess configured to communicate the sound path with the outside of the housing.

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