利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

403 records (took 0.018 seconds)

    Extracting features from auditory observations with active or passive assistance of shape-based auditory modification apparatus
    71.
    发明公开
    Extracting features from auditory observations with active or passive assistance of shape-based auditory modification apparatus 审中-公开

    公开(公告)号：US20240169967A1

    公开(公告)日：2024-05-23

    申请号：US18427121

    申请日：2024-01-30

    Applicant: George A. Economou

    Inventor： George A. Economou

    IPC: G10K11/04 ,  G01H3/00 ,  H04R1/34

    CPC classification number: G10K11/04 ,  G01H3/00 ,  H04R1/342

    Abstract: This disclosure provides for an auditory modification apparatus to facilitate extraction of information from an auditory observation stream. The approach may be used to reveal features about the environment, or to simplify processing of the incoming audio stream. The apparatus acts on the incoming auditory stream by nature of its shape, and that shape either is passively static or actively manipulated. Preferably, the apparatus has given shape characteristics to reveal features of the environment, such as directionality of a noise, size of an enclosed space, or materials of its construction, that are not otherwise detectable or easy to process with conventional approaches. Further advantage exists in the notion of actively manipulating the shape of the apparatus in conjunction with its operation to facilitate information extraction in a dynamic manner.

    Acoustic metamaterial units with the function of soundproof, flow passing and heat; transfer enhancement, the composite structure and the preparation methods thereof
    72.
    发明授权
    Acoustic metamaterial units with the function of soundproof, flow passing and heat; transfer enhancement, the composite structure and the preparation methods thereof 有权

    公开(公告)号：US11862136B2

    公开(公告)日：2024-01-02

    申请号：US16626962

    申请日：2016-04-19

    Applicant: Lifan Huang

    Inventor： Lifan Huang ,  Shuguang Wang

    IPC: E04B1/86 ,  G10K11/168 ,  E04F13/075 ,  G10K11/172 ,  G10K11/04 ,  G10K11/28 ,  E04F13/08

    CPC classification number: G10K11/168 ,  E04F13/075 ,  G10K11/04 ,  G10K11/172 ,  E04F13/0867

    Abstract: The present invention relates to the acoustic metamaterial structural unit with the function of soundproof, flow-passing and heat-transferring enhancement, which comprises a frame, a constraint placed in the frame and a piece of membrane covering at least one surface of the frame; both the frame and the membrane are respectively placed at least one hole. Besides, the present invention also provides the acoustic metamaterial composite plate and the composite structure constructed with the acoustic metamaterial structural unit; the method for adjusting the frequency and the assemble method. The present structural unit possesses better soundproof property than the routine perforated plated or micro-perforated plate in broad operating frequency. And also the enough heat flow, gas flow or fluid flow can pass through smoothly. The diffuse efficiency of the heat energy of the mediums on both sides of the hole is increased by the vibration of the self-structure under the excitation of the soundwave and further the efficiency of heat exchange is accelerated. The method for assembling the acoustic metamaterial composite structure with the acoustic metamaterial structural units is simple. The operation performance is steady.

    METHOD FOR IMPROVING SOUND QUALITY OF SOUND REPRODUCTIONS OR SOUND RECORDINGS IN A ROOM
    74.
    发明申请
    METHOD FOR IMPROVING SOUND QUALITY OF SOUND REPRODUCTIONS OR SOUND RECORDINGS IN A ROOM 有权

    公开(公告)号：US20230096292A1

    公开(公告)日：2023-03-30

    申请号：US17936255

    申请日：2022-09-28

    Applicant: BANG & OLUFSEN A/S

    Inventor： Lasse Zinck Thomasberg ,  Jakob Dyreby

    IPC: G10K11/04 ,  G01N29/12

    Abstract: The invention relates to a method for improving the sound quality of a sound reproduction or recording in a room, the method comprising the steps of measuring an impulse response that comprises the linear response of the room; performing a time domain analysis to determine the resonances of the room and for a chosen group of room resonances determining a corresponding group of filters that, when inserted in a sound reproduction or recording chain in said room will counteract the unwanted effect of said chosen group of room resonances on the sound quality of sound reproduction or recording made in the room. The invention further relates to a device designed to implement the method according to the invention and to the use of a measure of amplitude decay as a function of frequency of a measured impulse response of a sound reproduction or recording system in a room to determine one or more resonance frequencies, the total or partial compensation of which will improve the sound quality of sound reproductions or recordings made in the room.

    Absorbent acoustic metamaterial
    76.
    发明授权
    Absorbent acoustic metamaterial 有权

    公开(公告)号：US11081095B2

    公开(公告)日：2021-08-03

    申请号：US15781394

    申请日：2016-12-02

    Applicant: UNIVERSITÉ DE FRANCHE-COMTÉ ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

    Inventor： Abdelkrim Khelif ,  Mahmoud Addouche ,  Aliyasin El Ayouch

    IPC: G10K11/172 ,  G10K11/04 ,  G10K11/168

    Abstract: Some embodiments are directed to an elementary acoustic metamaterial cell, including a body made of solid material and at least one resonator defining a groove of width l and depth p, the groove being open on the surface of the body, wherein the depth p is set by a resonant frequency (f) of the cell according to a relationship x, c being the speed of sound in air and the width l is set by an energy density confined in the cell according to a logarithmic relationship Emax αlog (l) determined experimentally, the groove having an acoustic absorption controlled by a ratio between the depth p and the width l of the groove. Some embodiments are also directed to an acoustic screen including such an elementary cell.

    Noise cancelling earset having acoustic filter
    79.
    发明授权
    Noise cancelling earset having acoustic filter 有权

    公开(公告)号：US10764673B2

    公开(公告)日：2020-09-01

    申请号：US16065808

    申请日：2016-11-30

    Applicant: Orfeo SoundWorks Corporation

    Inventor： Eundong Kim

    IPC: H04R9/06 ,  H04R1/10 ,  H04R1/28 ,  G10K11/16 ,  G10K11/04 ,  H04R9/02 ,  H04R11/02

    Abstract: Disclosed is a noise cancelling earset having an acoustic filter. The earset includes a dynamic driver unit configured to generate a sound, and an acoustic filter configured to cover a back hole formed in a back of the dynamic driver unit, so that the acoustic filter allows air to pass, but does not allow extraneous noise to pass. The acoustic filter includes filter layers selectively formed with a through-hole and a sound passage, and plates with a through-hole selectively communicating with the through-hole and the sound passage. The filter layers and the plates are alternatively disposed on each other, and the through-holes of the plates communicate with the through-holes or the sound passages of the filter layers.

Patent Agency Ranking