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公开(公告)号：US11310587B2
公开(公告)日：2022-04-19
申请号：US16595723
申请日：2019-10-08
申请人： Bose Corporation
摘要： A loudspeaker includes a first electro-acoustic transducer, a horn acoustically coupled to the first electro-acoustic transducer, and a first acoustic leak that is acoustically coupled to the horn. The first acoustic leak is positioned so as to reduce a peak in a frequency response of the loudspeaker at the targeted frequency without removing the targeted frequency from the output of the loudspeaker.
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公开(公告)号：US20160337749A1
公开(公告)日：2016-11-17
申请号：US14986954
申请日：2016-01-04
发明人： Oleg Bogdanov , Kevin Idzerda
CPC分类号： H04R1/24 , H04R1/023 , H04R1/26 , H04R1/2888 , H04R1/403
摘要： The present invention discloses a high frequency transducer housing for use in a coaxial loudspeaker system to reduce diffraction. The coaxial loudspeaker system comprises at least one high frequency transducer that is arranged to be mounted with a second frequency transducer. The housing comprises a plurality of edges on a periphery of the housing. The edges of the housing have irregular shapes. The plurality of the edges are eccentric with a diaphragm of the second transducer.
摘要翻译： 本发明公开了一种用于同轴扬声器系统中以减少衍射的高频换能器壳体。 同轴扬声器系统包括至少一个高频换能器，该换能器被布置为安装有第二频率换能器。 壳体包括在壳体的周边上的多个边缘。 壳体的边缘具有不规则形状。 多个边缘与第二换能器的隔膜偏心。
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公开(公告)号：US4597099A
公开(公告)日：1986-06-24
申请号：US586977
申请日：1984-03-07
申请人： Tadashi Sawafuji
发明人： Tadashi Sawafuji
摘要： A crystal sound producer has a piezoelectric crystal plate diaphragm which produces sound waves when applied with a voltage thereacross. A waveform transform plate has slits or linear grooves through which the sound waves from the diaphragm are radiated in semicylindrical waves. As these semicylindrical waves propagate in the air, they superpose one another to form generally plane waves which sound natural to the human hearing. The crystal sound producer can be used in portable articles such as badges.
摘要翻译： 水晶声音发生器具有压电晶体板振膜，当施加电压时产生声波。 波形变换板具有狭缝或线性槽，来自隔膜的声波通过该槽或线性槽以半圆柱形波辐射。 随着这些半圆波在空中传播，它们彼此叠加，以形成对人类听觉自然的大体平面波。 水晶制音器可用于便携式物品如徽章。
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公开(公告)号：US12035101B2
公开(公告)日：2024-07-09
申请号：US18048036
申请日：2022-10-20
申请人： Sonos, Inc.
发明人： Michael Chamness , Greg Flanagan , Camille Zaba , Brandon Holley
CPC分类号： H04R1/2857 , B60T8/1761 , B60T13/662 , B60T13/686 , H04R1/025 , H04R1/288 , H04R1/36 , H04R2420/07
摘要： A playback device comprises an electroacoustic transducer; an acoustic waveguide in fluid communication with the transducer; and a housing delimiting an opening of the waveguide, the opening extending around an axis passing through the transducer. The opening may have a radial distance from the axis that varies with an azimuthal angle about the axis. An acoustic path length within the waveguide, between the transducer and the opening, is substantially constant and independent of azimuthal angle about the axis.
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公开(公告)号：US20240171903A1
公开(公告)日：2024-05-23
申请号：US18426927
申请日：2024-01-30
申请人： Sonos, Inc.
发明人： Michael Chamness , Greg Flanagan , Camille Zaba , Brandon Holley
CPC分类号： H04R1/2857 , B60T8/1761 , B60T13/662 , B60T13/686 , H04R1/025 , H04R1/288 , H04R1/36 , H04R2420/07
摘要： A playback device comprises an electroacoustic transducer; an acoustic waveguide in fluid communication with the transducer; and a housing delimiting an opening of the waveguide, the opening extending around an axis passing through the transducer. The opening may have a radial distance from the axis that varies with an azimuthal angle about the axis. An acoustic path length within the waveguide, between the transducer and the opening, is substantially constant and independent of azimuthal angle about the axis.
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公开(公告)号：US20180124509A1
公开(公告)日：2018-05-03
申请号：US15838378
申请日：2017-12-12
申请人： Audeze, LLC
发明人： Dragoslav Colich
摘要： Phase plugs (70) and related audio devices (100, 105) and methods comprise various compression members (2), and guides (120) extending from the compression members (2) to tips (84), are configured such that central axes (93, 99) defined perpendicular to compression members (2) and/or diaphragms (94) are asymmetric and/or non-axisymmetric to the central axes (93, 99).
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公开(公告)号：US09961437B2
公开(公告)日：2018-05-01
申请号：US15286944
申请日：2016-10-06
申请人： Signal Essence, LLC
CPC分类号： H04R1/406 , H04R3/005 , H04R2430/23 , H04R2430/25
摘要： A sound sensing device may include a housing having a dome-shaped shell and a baseplate. The housing may have a symmetrically shaped perimeter. The dome-shaped shell may have an arcuate cross section characterized by tangent lines that monotonically increase in slope from a top of the dome-shaped shell toward a bottom of the dome-shaped shell. At least three sound ports may be provided between an interior volume of the housing and an exterior surrounding of the housing, and disposed symmetrically and peripherally about the perimeter of the housing. The sound ports may be located at most 1 cm above the support surface.
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公开(公告)号：US11483645B2
公开(公告)日：2022-10-25
申请号：US16894608
申请日：2020-06-05
发明人： Jeremy Johnson , Yenhao Chen
摘要： An acoustic transducer comprises a transducer substrate, and an aperture having a non-circular perimetral shape defined through the transducer substrate. A diaphragm is disposed on the transducer substrate and coupled to a surface of the transducer substrate via at least one diaphragm anchor such that a gap is defined between the diaphragm and the transducer substrate, and an outer periphery of the diaphragm extends radially outwards of a rim of the aperture such that a portion of the diaphragm overhangs the aperture.
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公开(公告)号：US11405720B2
公开(公告)日：2022-08-02
申请号：US17130290
申请日：2020-12-22
摘要： An audio system comprises an array of transparent piezoelectric transducers on a transparent surface. Each transparent piezoelectric transducer includes one or more piezoelectric layers and one or more conductive layers that are substantially transparent to visible light. A transparent piezoelectric transducer may include, e.g., a first conductive layer, a first piezoelectric layer on the first conductive layer, and a second conductive layer on the first piezoelectric layer. Or in another example, the transparent piezoelectric transducer includes many (e.g., 20-30) piezoelectric layers and many (e.g., 20-30) conductive layers.
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公开(公告)号：US20180255394A1
公开(公告)日：2018-09-06
申请号：US15898225
申请日：2018-02-15
申请人： Dragoslav Colich
发明人： Dragoslav Colich
摘要： Active noise control (ANC), including active and adaptive noise cancellation (ANC) with non-voice-coil transducers having highly linear transfer functions, such as planar transducers, planar magnetic transducers, electro-static transducers, and piezo-electric transducers. This active and adaptive noise cancellation (ANC) may be used with: planar transducer headphones and earphones; open-backed and closed-back headphones and earphones; in-ear earphones, and phase plugs.
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