Audio driver
    2.
    发明授权
    Audio driver 失效
    音频驱动

    公开(公告)号:US08588449B2

    公开(公告)日:2013-11-19

    申请号:US13262927

    申请日:2010-04-06

    IPC分类号: H04R25/00

    CPC分类号: H04R9/022

    摘要: An audio driver including a diaphragm with a first side and a second side. The diaphragm is coupled to a transducer element on the second side and is arranged to radiate sound. The transducer element converts an electrical input signal into movement of the diaphragm. The diaphragm is arranged such that a part of the diaphragm at least partly forms a cavity at the second side of an air conduit is coupled to the cavity. The air conduit has a first opening into the cavity and a second opening outside of the cavity. The air conduit and cavity form a resonator which has a resonance frequency that is less than half a free air acoustic resonance frequency of the audio driver.

    摘要翻译: 一种音频驱动器,包括具有第一侧和第二侧的隔膜。 隔膜耦合到第二侧上的换能器元件并被布置成辐射声音。 换能器元件将电输入信号转换成膜片的运动。 隔膜被布置成使得至少部分地在空气管道的第二侧形成空腔的隔膜的一部分联接到空腔。 空气管道具有进入空腔的第一开口和空腔外部的第二开口。 空气导管和空腔形成谐振器,其谐振频率小于音频驱动器的自由空气声共振频率的一半。

    LOUDSPEAKER SYSTEM AND LOUDSPEAKER HAVING A TWEETER ARRAY
    3.
    发明申请
    LOUDSPEAKER SYSTEM AND LOUDSPEAKER HAVING A TWEETER ARRAY 审中-公开
    扬声器系统和带双向阵列的扬声器

    公开(公告)号:US20090290724A1

    公开(公告)日:2009-11-26

    申请号:US12307945

    申请日:2007-07-09

    IPC分类号: H03G5/00

    摘要: A loudspeaker system includes at least two stand-alone loudspeaker devices (1L, 1R) each comprising a frame (3) provided with a vertically oriented array (5) of first loudspeakers (7) for reproducing sound in a higher frequency range. The system further includes a second loudspeaker (13) for reproducing sound in a lower frequency range, wherein the frequency ranges have a crossover frequency fc and 750 Hz

    摘要翻译: 扬声器系统包括至少两个独立的扬声器装置(1L,1R),每个独立扬声器装置包括设置有用于在更高频率范围内再现声音的第一扬声器(7)的垂直取向的阵列(5)的框架(3)。 该系统还包括用于在较低频率范围内再现声音的第二扬声器(13),其中频率范围具有交叉频率fc和750Hz

    SOUND MASSAGE SYSTEM
    4.
    发明申请
    SOUND MASSAGE SYSTEM 审中-公开
    声音按摩系统

    公开(公告)号:US20130023804A1

    公开(公告)日:2013-01-24

    申请号:US13635970

    申请日:2011-04-05

    IPC分类号: A61H1/00

    摘要: A sound massage system (1) comprises a sound device (3) arranged for producing a rotating sound beam, a vibration element (5) arranged for producing vibrations, wherein the vibration frequency is less than 300 Hertz, and a control unit (7) arranged for controlling the sound device (3) and the vibration element (5). The sound massage system provides imitation of the Tibetan signing bowls. The invention also related to a relaxation system comprising the sound massage system.

    摘要翻译: 声音按摩系统(1)包括:声音装置(3),被配置为产生旋转的声束;振动元件(5),其布置成产生振动,其中振动频率小于300赫兹;以及控制单元(7) 布置成用于控制声音装置(3)和振动元件(5)。 声音按摩系统提供模仿西藏签名碗。 本发明还涉及包括声音按摩系统的松弛系统。

    Low noise cooling device
    5.
    发明授权
    Low noise cooling device 有权
    低噪音冷却装置

    公开(公告)号:US08218318B2

    公开(公告)日:2012-07-10

    申请号:US12746200

    申请日:2008-11-26

    IPC分类号: H05K7/20

    CPC分类号: F04D33/00 F04F7/00

    摘要: A cooling device (1) using pulsating fluid for cooling of an object, comprising: a transducer (2) having a membrane adapted to generate pressure waves at a working frequency (fw), and a cavity (4) enclosing a first side of the membrane. The cavity (4) has at least one opening (5) adapted to emit a pulsating net output fluid flow towards the object, wherein the opening (5) is in communication with a second side of the membrane. The cavity (4) is sufficiently small to prevent fluid in the cavity (4) from acting as a spring in a resonating mass-spring system in the working range. This is advantageous as a volume velocity (u1) at the opening is essentially equal to a volume velocity (u1′) at the second side of the membrane, apart from a minus sign. Thus, at the working frequency the pulsating net output fluid can be largely cancelled due to the counter phase with the pressure waves on the second side of the membrane resulting in a close to zero far-field volume velocity. Thus a low sound level is achieved, at a low cost, without requiring mechanical symmetry.

    摘要翻译: 一种使用用于冷却物体的脉动流体的冷却装置(1),包括:具有适于产生工作频率(fw)的压力波的膜的换能器(2)和包围所述第一侧的空腔(4) 膜。 空腔(4)具有至少一个开口(5),适于朝向物体发射脉动的净输出流体流,其中开口(5)与膜的第二侧连通。 空腔(4)足够小以防止空腔(4)中的流体在工作范围内作为共振质弹簧系统中的弹簧。 这是有利的,因为开口处的体积速度(u1)基本上等于膜的第二侧处的体积速度(u1'),除了负号。 因此,在工作频率下,脉动净输出流体由于与膜的第二侧上的压力波的相反相而可能被大大地消除,导致接近于零的远场体积速度。 因此,以低成本实现低声级,而不需要机械对称。

    Selective audio signal enhancement
    6.
    发明申请
    Selective audio signal enhancement 审中-公开
    选择性音频信号增强

    公开(公告)号:US20070127731A1

    公开(公告)日:2007-06-07

    申请号:US10580674

    申请日:2004-11-30

    IPC分类号: H03G3/00

    CPC分类号: H04R3/04 G10L21/02

    摘要: An audio signal may be enhanced by adding enhancement signals, such as harmonics and/or sub-harmonics of the signal's bass components. To avoid any unwanted enhancement signals during soft passages or speech, it is proposed to monitor the audio signal for tonal signal components in a frequency range and to only add the enhancement signals if such tonal signals are detected. A tonal detector (3) may comprise sine and cosine generators whose frequency is preferably equal to a dominant frequency of the frequency range.

    摘要翻译: 可以通过增加诸如信号低音分量的谐波和/或次谐波的增强信号来增强音频信号。 为了在软通道或语音期间避免任何不需要的增强信号,建议监视频率范围内的音调信号分量的音频信号,并且仅在检测到这种音调信号时才添加增强信号。 音调检测器(3)可以包括正弦和余弦发生器,其频率优选等于频率范围的主频率。

    Vacuum cleaning device
    7.
    发明授权
    Vacuum cleaning device 有权
    真空清洗装置

    公开(公告)号:US09259128B2

    公开(公告)日:2016-02-16

    申请号:US14008010

    申请日:2012-04-05

    IPC分类号: A47L5/00 A47L9/04

    CPC分类号: A47L9/0483 A47L9/0461

    摘要: A vacuum cleaning device comprises a unit (1) for aerodynamically affecting dust particles and/or a surface to be cleaned. The unit (1) comprises a housing (30) having a housing wall (31) encompassing two internal sections (20, 22), and a movable surface (11) arranged at an interface of the two sections (20, 22), wherein a portion (32) of the housing wall (31) delimiting a first section (20) is provided with at least one opening (21), and wherein means for actuating the movable surface (11) are arranged in a second section (22). A portion (33) of the housing wall (31) delimiting the second section (22) is adapted to at least hinder exchange of air between an inside of this section (22) and an outside of the housing (30) at the location of this section (22), in order to at least hinder a migration of dust to the second section (22).

    摘要翻译: 真空清洁装置包括用于空气动力学影响灰尘颗粒和/或待清洁表面的单元(1)。 单元(1)包括具有包围两个内部部分(20,22)的壳体壁(31)和布置在两个部分(20,22)的界面处的可移动表面(11)的壳体(30),其中 限定第一部分(20)的壳体壁(31)的部分(32)设置有至少一个开口(21),并且其中用于致动可动表面(11)的装置布置在第二部分(22)中, 。 限定第二部分(22)的壳体壁(31)的部分(33)适于至少妨碍在该部分(22)的内部和壳体(30)的外部之间的空气交换, 该部分(22),以便至少阻止灰尘向第二部分(22)的迁移。

    VACUUM CLEANING DEVICE
    8.
    发明申请
    VACUUM CLEANING DEVICE 有权
    真空清洁装置

    公开(公告)号:US20140047669A1

    公开(公告)日:2014-02-20

    申请号:US14008010

    申请日:2012-04-05

    IPC分类号: A47L9/04

    CPC分类号: A47L9/0483 A47L9/0461

    摘要: A vacuum cleaning device comprises a unit (1) for aerodynamically affecting dust particles and/or a surface to be cleaned. The unit (1) comprises a housing (30) having a housing wall (31) encompassing two internal sections (20, 22), and a movable surface (11) arranged at an interface of the two sections (20, 22), wherein a portion (32) of the housing wall (31) delimiting a first section (20) is provided with at least one opening (21), and wherein means for actuating the movable surface (11) are arranged in a second section (22). A portion (33) of the housing wall (31) delimiting the second section (22) is adapted to at least hinder exchange of air between an inside of this section (22) and an outside of the housing (30) at the location of this section (22), in order to at least hinder a migration of dust to the second section (22).

    摘要翻译: 真空清洁装置包括用于空气动力学影响灰尘颗粒和/或待清洁表面的单元(1)。 单元(1)包括具有包围两个内部部分(20,22)的壳体壁(31)和布置在两个部分(20,22)的界面处的可移动表面(11)的壳体(30),其中 限定第一部分(20)的壳体壁(31)的部分(32)设置有至少一个开口(21),并且其中用于致动可动表面(11)的装置布置在第二部分(22)中, 。 限定第二部分(22)的壳体壁(31)的部分(33)适于至少妨碍在该部分(22)的内部和壳体(30)的外部之间的空气交换 该部分(22),以便至少阻止灰尘向第二部分(22)的迁移。

    JET EDUCTOR PUMP
    9.
    发明申请
    JET EDUCTOR PUMP 审中-公开
    喷气机泵

    公开(公告)号:US20110176935A1

    公开(公告)日:2011-07-21

    申请号:US13063952

    申请日:2009-09-18

    IPC分类号: F04F5/00 F04F5/48

    摘要: The invention provides a synthetic jet eductor pump that includes a synthetic jet actuator coupled to a fluid conduit. The synthetic jet actuator may include a vibratable membrane, an actuating portion that vibrates the vibratable membrane, a pump chamber coupled to the vibratable membrane, and a pump conduit in fluid communication with the pump chamber such that vibration of the membrane draws fluid into and ejects fluid from the pump conduit to create a net momentum of fluid in a predetermined direction. The fluid conduit may include a jet receiving portion between intake and ejection portions thereof, wherein the jet receiving portion is in fluid communication with the pump conduit. The net momentum of fluid created by the synthetic jet actuator may be communicated to the fluid conduit at the jet receiving portion to create fluid flow in the fluid conduit from the intake portion to the ejection portion.

    摘要翻译: 本发明提供一种合成射流喷射泵,其包括耦合到流体导管的合成射流致动器。 合成射流致动器可以包括可振动膜,使可振动膜振动的致动部分,耦合到可振动膜的泵室和与泵室流体连通的泵管,使得膜的振动吸入流体并喷射 来自泵导管的流体以在预定方向上产生流体的净动量。 流体导管可以包括在其进入和喷射部分之间的射流接收部分,其中射流接收部分与泵管道流体连通。 由合成射流致动器产生的流体的净动量可以在射流接收部分处传递到流体导管,以在流体导管中从进气部分到喷射部分产生流体流动。

    Audio frequency range adaptation
    10.
    发明授权
    Audio frequency range adaptation 失效
    音频范围适应

    公开(公告)号:US07474752B2

    公开(公告)日:2009-01-06

    申请号:US10571637

    申请日:2004-08-31

    IPC分类号: H04R29/00

    摘要: To improve the reproduction of audio signals, the signal components of a selected audio frequency range (1) of an audio signal are concentrated in a narrower audio frequency range (II). This is achieved by detecting first signal components in the first audio frequency range (I), generating second signal components in the second audio frequency range (II), and controlling the amplitude of the second signal components in response to the amplitude of the first signal components. As a result, dedicated transducers may be used which are particularly efficient in the narrower frequency range. The original frequency range (I) may contain the lower frequency signal components (bass components) of the audio signal.

    摘要翻译: 为了改善音频信号的再现,音频信号的选定音频范围(1)的信号分量集中在较窄的音频频率范围(II)中。 这通过检测第一音频频率范围(I)中的第一信号分量,产生第二音频范围(II)中的第二信号分量,并响应于第一信号的振幅来控制第二信号分量的振幅来实现 组件。 结果,可以使用在较窄频率范围内特别有效的专用换能器。 原始频率范围(I)可以包含音频信号的较低频率信号分量(低音分量)。