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公开(公告)号：US20060159288A1
公开(公告)日：2006-07-20
申请号：US11358864
申请日：2006-02-21
Applicant: Enrique Stiles , Patrick Turnmire , Richard Calderwood
Inventor： Enrique Stiles , Patrick Turnmire , Richard Calderwood
CPC classification number: H04R1/26 , H04R1/40 , H04R1/403 , H04R3/00 , H04R3/04 , H04R3/12 , H04R3/14 , H04R2201/401 , H04R2201/403 , H04R2201/405 , H04R2499/15 , H04S7/00 , H04S2420/01
Abstract: A dipole loudspeaker in which the oppositely oriented transducers each is a Bessel Array. Optionally, Improved or Super Bessel Arrays are used, and their half-amplitude end position transducers may be shared and aimed in a perpendicular—typically vertical—orientation. The Bessel Dipole is especially useful as a surround channel loudspeaker; for the same effective radiating area and/or sound production, the Bessel Dipole has a narrower cabinet than a conventional two-transducer dipole loudspeaker.
Abstract translation: 一个偶极扬声器，其中相反方向的换能器各自是贝塞尔阵列。 可选地，使用改进的或超级贝塞尔阵列，并且它们的半幅度终端位置传感器可以被共享并且以垂直于垂直方向定向。 贝塞尔偶极子特别适用于环绕声扬声器; 对于相同的有效辐射面积和/或声音产生，Bessel Dipole具有比传统双传感器偶极扬声器更窄的机柜。
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公开(公告)号：US20060159287A1
公开(公告)日：2006-07-20
申请号：US11358826
申请日：2006-02-21
Applicant: Enrique Stiles , Patrick Turnmire , Richard Calderwood
Inventor： Enrique Stiles , Patrick Turnmire , Richard Calderwood
CPC classification number: H04R1/26 , H04R1/403 , H04R3/04 , H04R3/12 , H04R3/14 , H04R2201/401 , H04R2201/403 , H04R2201/405 , H04R2499/15
Abstract: An MTM loudspeaker in which the Ms and/or the T is constructed as a Bessel Array. The shapes of the diaphragms, the transducer count, the Bessel type, and/or the acoustic center positioning can be adjusted to achieve desired packing factor, enclosure size, off-axis performance, and so forth.
Abstract translation: 一个MTM扬声器，其中Ms和/或T被构造为贝塞尔阵列。 可以调节膜片的形状，换能器数量，贝塞尔型和/或声学中心定位，以实现所需的包装系数，外壳尺寸，离轴性能等。
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公开(公告)号：US20060159286A1
公开(公告)日：2006-07-20
申请号：US11358810
申请日：2006-02-21
Applicant: Enrique Stiles , Patrick Turnmire , Richard Calderwood
Inventor： Enrique Stiles , Patrick Turnmire , Richard Calderwood
CPC classification number: H04R1/26 , H04R1/403 , H04R3/04 , H04R3/12 , H04R3/14 , H04R2201/401 , H04R2201/403 , H04R2201/405 , H04R2499/15
Abstract: An e.g. 7-element Bessel Array in which the null or zero positions are occupied with sound producing means producing sound outside the Bessel functional frequency range, such as a higher frequency Bessel Array, a higher frequency MTM, or a port.
Abstract translation: 例如 7元素贝塞尔阵列，其中零位或零位被声音产生装置占据，产生在贝塞尔功能频率范围之外的声音，例如较高频率贝塞尔阵列，较高频率MTM或端口。
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公开(公告)号：US20060018490A1
公开(公告)日：2006-01-26
申请号：US11220935
申请日：2005-09-06
Applicant: Enrique Stiles , Patrick Turnmire , Richard Calderwood
Inventor： Enrique Stiles , Patrick Turnmire , Richard Calderwood
CPC classification number: H04R1/26 , H04R1/403 , H04R3/04 , H04R3/12 , H04R3/14 , H04R2201/401 , H04R2201/403 , H04R2201/405 , H04R2499/15
Abstract: An improved Bessel array of electromagnetic transducers, in which the Bessel coefficients (phase and/or magnitude) are applied only in the useful high frequency range, where off-axis interference patterns between the outputs of respective transducers cause undesirable acoustic results. One improvement is in using an all-pass filter or the like in lieu of an inverter in the inverting Bessel coefficient path, to provide an in-phase signal in low frequencies and an opposite-phase signal in high frequencies. This achieves the improved off-axis result of a conventional Bessel array, with improved low-frequency maximum sound pressure and efficiency. Another improvement is in using a frequency-dependent voltage divider, such as a shelf circuit, in the half-strength Bessel coefficient paths, to provide full-strength signals in low frequencies and half-strength signals in high frequencies. This achieves even more improved low-frequency maximum sound pressure. Yet another improvement is in using a high-pass filter in front of the inverting Bessel coefficient path, to provide a zero signal in low frequencies and an opposite phase signal in high frequencies.
Abstract translation: 一种改进的贝塞尔电磁换能器阵列，其中贝塞尔系数（相位和/或幅度）仅应用于有用的高频范围，其中各个换能器的输出之间的离轴干涉图形导致不期望的声学结果。 一个改进是在反相贝塞尔系数路径中使用全通滤波器等来代替逆变器，以提供低频的同相信号和高频的相位相位信号。 这实现了常规贝塞尔阵列的改进的离轴结果，具有改进的低频最大声压和效率。 另一个改进是在半强度贝塞尔系数路径中使用频率依赖的分压器，例如搁架电路，以提供高频下的全强度信号和高频率的半强度信号。 这实现了更加改进的低频最大声压。 另一个改进是在反相贝塞尔系数路径前面使用高通滤波器，在低频中提供零信号和在高频率下提供相反的相位信号。
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公开(公告)号：US20050041530A1
公开(公告)日：2005-02-24
申请号：US10492138
申请日：2002-10-10
Applicant: Angus Goudie , Paul Troughton , Anthony Hooley
Inventor： Angus Goudie , Paul Troughton , Anthony Hooley
CPC classification number: H04R3/12 , H04R1/403 , H04R2201/401 , H04R2201/405 , H04R2203/12 , H04R2205/022
Abstract: The invention provides transducer arrays which are capable of outputting sound beams having a relatively constant width, and with minimal sidelobes, across a range of frequencies. This is achieved by utilising one or more digital signal modifiers within the signal path between the input sound signal and the array of transducers. Variable window functions are also disclosed.
Abstract translation: 本发明提供了能够在频率范围内输出具有相对恒定的宽度和极小旁瓣的声束的换能器阵列。 这通过在输入声音信号和换能器阵列之间的信号路径内利用一个或多个数字信号修改器来实现。 还公开了可变窗函数。
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Patent Agency Ranking
公开(公告)号：US6160757A
公开(公告)日：2000-12-12
申请号：US137036
申请日：1998-08-20
Applicant: Wolfgang Tager , Gregoire Le Tourneur
Inventor： Wolfgang Tager , Gregoire Le Tourneur
CPC classification number: H04R3/005 , H04R2201/401 , H04R2201/403 , H04R2201/405
Abstract: The output signals of the acoustic sensors of the antenna are subjected to a processing of the superdirective kind, with a constraint as regards the modulus and a non-linear constraint which fixes the incoherent noise reduction.The theoretical formulation of these constraints being as follows ##EQU1## the first constraint signifying that the total transfer function is a pure delay .tau., and the second constraint signifying that a limit is fixed for the incoherent noise reduction.The antenna is provided to improve the near-field reception.
Abstract translation: 对天线的声学传感器的输出信号进行超定向类型的处理，具有关于模数的约束和固定非相干噪声降低的非线性约束。 这些约束的理论公式如下：表示总传递函数是纯延迟τ的第一约束，第二约束表示对于非相干噪声降低固定限制。 提供天线以改善近场接收。
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公开(公告)号：US20240187786A1
公开(公告)日：2024-06-06
申请号：US18485675
申请日：2023-10-12
Applicant: Shure Acquisition Holdings, Inc.
Inventor： Mathew T. Abraham , David Grant Cason , John Casey Gibbs , Gregory William Lantz , Albert Francis McGovern, Jr. , Brent Robert Shumard
CPC classification number: H04R1/406 , H04R1/02 , H04R31/00 , H04R2201/021 , H04R2201/40 , H04R2201/401 , H04R2201/405
Abstract: Embodiments include a microphone assembly comprising an array microphone and a housing configured to support the array microphone and sized and shaped to be mountable in a drop ceiling in place of at least one of a plurality of ceiling tiles included in the drop ceiling. A front face of the housing includes a sound-permeable screen having a size and shape that is substantially similar to the at least one of the plurality of ceiling tiles. Embodiments also include an array microphone system comprising a plurality of microphones arranged, on a substrate, in a number of concentric, nested rings of varying sizes around a central point of the substrate. Each ring comprises a subset of the plurality of microphones positioned at predetermined intervals along a circumference of the ring.
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公开(公告)号：US20230262381A1
公开(公告)日：2023-08-17
申请号：US18137657
申请日：2023-04-21
Applicant: Sennheiser Electronic GmbH & Co. KG
Inventor： J. Douglas Rollow, IV , Lance Reichert , Daniel Voss
CPC classification number: H04R1/406 , H04R3/04 , H04R3/005 , H04R2201/401 , H04R2430/23 , H04R2201/405
Abstract: A microphone array system or microphone array unit for a conference system is provided that includes a front board, side walls and a plurality of microphone capsules arranged in or on the front board mountable on or in a ceiling of a conference room. The microphone array system or unit is adapted for generating a steerable beam within a maximum detection angle range. The microphone array system or microphone array unit includes a processing unit which is configured to receive the output signals of the microphone capsules and to steer the beam based on the received output signal of the microphone array. The processing unit is configured to control the microphone array to limit the detection angle range to exclude at least one predetermined exclusion sector in which a noise source is located.
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公开(公告)号：US20190132672A1
公开(公告)日：2019-05-02
申请号：US15799021
申请日：2017-10-31
Applicant: Bose Corporation
Inventor： David Avi Dick , Sarah Margaret Heile
CPC classification number: H04R1/406 , H04R1/02 , H04R1/265 , H04R3/005 , H04R5/027 , H04R2201/401 , H04R2201/403 , H04R2201/405
Abstract: Various implementations include microphone arrays and related speaker systems. In one implementation, a microphone array is mounted in a housing having a primary X axis, a primary Y axis perpendicular to the primary X axis, and a primary Z axis perpendicular to the primary X axis and the primary Y axis. The microphone array can include a set of microphones positioned in a single plane perpendicular to the primary Z axis, and axially asymmetric with respect to both the primary X axis and the primary Y axis.
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公开(公告)号：US20180338106A1
公开(公告)日：2018-11-22
申请号：US16048789
申请日：2018-07-30
Applicant: Nokia Technologies Oy
Inventor： Juha Henrik Arrasvuori , Kari Juhani Jarvinen , Roope Olavi Jarvinen , Miikka Tapani Vilermo
CPC classification number: H04N5/607 , G06F1/1684 , H04M1/0206 , H04M1/035 , H04R1/406 , H04R3/005 , H04R29/005 , H04R2201/405 , H04R2430/20 , H04R2460/07 , H04R2499/11 , H04S7/30 , H04S2420/01
Abstract: An apparatus comprising: at least one determiner configured to determine at least one characteristic associated with a flexible part of a further apparatus; a signal processor configured to process at least one signal dependent on the at least one characteristic associated with the flexible part of the further apparatus, wherein the signal is at least one of an audio and a video signal; and an user interface generator configured to generate at least one user interface indication dependent on the characteristic associated with a flexible part of the further apparatus.
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