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    Integrated housing and passive cooling for an acoustic camera
    42.
    发明公开
    Integrated housing and passive cooling for an acoustic camera 审中-公开

    公开(公告)号：US20240040294A1

    公开(公告)日：2024-02-01

    申请号：US18266066

    申请日：2021-12-16

    Applicant: Sorama Holding B.V.

    Inventor： Rick Scholte ,  Ivo Jansen

    IPC: H04R1/08 ,  H04R9/02 ,  H04N23/51 ,  H04N23/63

    CPC classification number: H04R1/08 ,  H04R9/022 ,  H04N23/51 ,  H04N23/632 ,  H04R2201/40 ,  H04R2499/11

    Abstract: Improved passive heat sinking of acoustic cameras having a microphone array and onboard processor is provided. The onboard processor is heat sunk using a heat sink member within a sealed enclosure to conduct heat to a heat dissipation surface of the enclosure. Preferably the heat sink member is mostly a spring member having the dual functions of providing mechanical force to ensure good thermal contact with the onboard processor and providing heat conduction to the heat dissipation surface. A single enclosure can enclose both the onboard processor and the microphone array. Alternatively, the enclosure can have two parts, a first part enclosing the microphone array, and a second part enclosing the onboard processor.

    Privacy setting for sound leakage control
    44.
    发明授权
    Privacy setting for sound leakage control 有权

    公开(公告)号：US11743640B2

    公开(公告)日：2023-08-29

    申请号：US16921333

    申请日：2020-07-06

    Applicant: Meta Platforms Technologies, LLC

    Inventor： Tetsuro Oishi ,  Gelmont Rios

    IPC: H03G5/00 ,  H04R3/00 ,  H04R5/04 ,  H04R3/04

    CPC classification number: H04R3/002 ,  H04R3/04 ,  H04R5/04 ,  H04R2201/40 ,  H04R2420/07

    Abstract: An audio system includes a speaker and a processor. The processor determines a privacy setting for an audio signal. The privacy setting may be selected by a user. The privacy setting may indicate activation of a private mode, or may indicate a privacy level from a range of privacy levels. The processor determines an audio filter that adjusts the audio signal to mitigate sound leakage when presented by the speaker based on the privacy setting. The audio filter may include a low-pass filter and a multiband compressor. The parameters of the audio filter may vary based on the privacy setting. The processor applies the audio filter to the audio signal to generate a filtered audio signal and provides the filtered audio signal to the speaker.

    SPEAKER CALIBRATION METHOD, APPARATUS AND PROGRAM
    45.
    发明公开
    SPEAKER CALIBRATION METHOD, APPARATUS AND PROGRAM 审中-公开

    公开(公告)号：US20230171555A1

    公开(公告)日：2023-06-01

    申请号：US17921555

    申请日：2020-06-04

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Kazunori KOBAYASHI ,  Ryotaro SATO

    IPC: H04R29/00 ,  H04R1/40

    CPC classification number: H04R29/001 ,  H04R1/403 ,  H04R2201/40 ,  H04R2430/20

    Abstract: There are included a first speaker processing step in which a first speaker 2 produces sound based on a first filtered signal, a gain multiplication step in which a gain multiplication unit 4 generates a gain multiplied signal by multiplying a second filtered signal by a gain, a second speaker processing step in which a second speaker 5 produces sound based on the gain multiplied signal, and a gain control step in which a gain control unit 7 controls the gain such that a root mean square of a collected sound signal collected by a microphone 6 installed at a mute position, which is a position at which the sound produced by the first speaker and the sound produced by the second speaker are to be muted, is relatively small.

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