A LOUDSPEAKER ARRANGEMENT
    12.
    发明申请
    A LOUDSPEAKER ARRANGEMENT 审中-公开
    一个扬声器安排

    公开(公告)号:WO2010015976A2

    公开(公告)日:2010-02-11

    申请号:PCT/IB2009/053337

    申请日:2009-07-31

    CPC classification number: H04R1/2834 H04R1/2811 H04R1/2819

    Abstract: A loudspeaker arrangement comprises an acoustic enclosure (101) which is divided into at least two subchambers (103, 105). An audio radiator (109) is mounted in a first subchamber (103) of the at least two subchambers (103, 105) such that it radiates outwardly of the acoustic enclosure (101). A port (107) is included for pneumatically connecting the first subchamber (103) and the second subchamber (105). The system is designed such that a Helmholtz frequency of the first subchamber (103) and the port (107) is at least five times higher than a resonance frequency of the audio radiator (109). The loudspeaker arrangement may provide an improved trade-off between sound pressure levels, audio quality and size and may in particular provide improved low frequency performance without introducing disadvantages typically associated with conventional ported speaker and passive radiator designs.

    Abstract translation: 扬声器装置包括被分成至少两个子室(103,105)的声学封套(101)。 音频散热器(109)安装在所述至少两个子室(103,105)的第一子室(103)中,使得其辐射到所述声学外壳(101)的外部。 包括端口(107),用于气动连接第一子室(103)和第二子室(105)。 该系统被设计成使得第一子室(103)和端口(107)的亥姆霍兹频率比音频散热器(109)的谐振频率高至少五倍。 扬声器装置可以提供声压级,音频质量和尺寸之间的改进的折衷,并且可以特别地提供改进的低频性能,而不会引入通常与常规移动扬声器和无源辐射器设计相关的缺点。

    LIGHTING DEVICE WITH PULSATING FLUID COOLING
    13.
    发明申请
    LIGHTING DEVICE WITH PULSATING FLUID COOLING 审中-公开
    具有脉冲流体冷却的照明装置

    公开(公告)号:WO2008152560A1

    公开(公告)日:2008-12-18

    申请号:PCT/IB2008/052254

    申请日:2008-06-09

    Abstract: An illumination device (1) comprising: at least one light emitting device (5); and a suspension structure (2), suspending the at least one light emitting device (5) in a desired position. Further, the illumination device (1) has a transducer (6), adapted to generate pressure waves at a drive frequency; wherein the suspension structure (2) is utilized as a flow guiding structure (7), having a first end adapted to receive the pressure waves from the transducer, and a second end adapted to generate a pulsating net output flow towards the at least one light emitting device (5), thereby cooling the at least one light emitting device (5). By utilizing the suspension structure itself as flow guiding structure cooling can be integrated in a cost efficient way. Further, no additional space is required to accommodate the flow guiding structure.

    Abstract translation: 一种照明装置(1),包括:至少一个发光装置(5); 和悬挂结构(2),将所述至少一个发光装置(5)悬挂在期望的位置。 此外,照明装置(1)具有适于产生驱动频率的压力波的换能器(6) 其中所述悬挂结构(2)用作流动引导结构(7),其具有适于接收来自所述换能器的压力波的第一端,以及适于产生朝向所述至少一个光的脉动净输出流的第二端 从而冷却至少一个发光器件(5)。 通过利用悬挂结构本身作为导流结构,可以以成本有效的方式集成冷却。 此外,不需要额外的空间来容纳流动引导结构。

    PULSATING COOLING SYSTEM
    14.
    发明申请
    PULSATING COOLING SYSTEM 审中-公开
    脉冲冷却系统

    公开(公告)号:WO2008065602A1

    公开(公告)日:2008-06-05

    申请号:PCT/IB2007/054796

    申请日:2007-11-27

    Abstract: A cooling device comprising at least one transducer (1) having a membrane adapted to generate pressure waves at a working frequency, characterized by a first and a second cavity (3, 4), said transducer being arranged between said first and second cavities, such that said membrane forms an fluid tight seal between said cavities, each cavity having at least one opening (7, 8) adapted to emit a pulsating net output fluid flow, wherein said cavities and openings are formed such that, at said working frequency, a first harmonic fluid flow emitted by said opening(s) (7) of a first one of said cavities is in anti-phase with a second harmonic fluid flow emitted by said opening(s) (8) of a second one of said cavities, so that a sum of harmonic fluid flow from said openings is essentially zero. With this design, sound reproduction at the working frequency is largely cancelled due to the counter phase of the outlets resulting in a close to zero far-field volume velocity.

    Abstract translation: 一种冷却装置,包括至少一个换能器(1),其具有适于产生工作频率的压力波的膜,其特征在于第一和第二腔(3,4),所述换能器布置在所述第一和第二腔之间, 所述膜在所述空腔之间形成流体密封的密封,每个空腔具有适于发射脉动净输出流体流的至少一个开口(7,8),其中所述空腔和开口形成为使得在所述工作频率下, 由所述空腔中的第一个的所述开口(7)发射的一次谐波流体流与由所述空腔中的第二个的所述开口(8)发射的二次谐波流体流反相, 使得来自所述开口的谐波流体的总和基本为零。 通过这种设计,由于出口的相对相位导致接近于零的远场体积速度,工作频率下的声音再现被大大地消除。

    EFFICIENT AUDIO REPRODUCTION
    15.
    发明申请
    EFFICIENT AUDIO REPRODUCTION 审中-公开
    有效的音频制作

    公开(公告)号:WO2007086000A2

    公开(公告)日:2007-08-02

    申请号:PCT/IB2007/050224

    申请日:2007-01-23

    CPC classification number: H04R3/04

    Abstract: A device (30) for adapting an audio input signal (V1n) to a transducer unit (20) comprises: • mapping means (10) for mapping input signal components from a first audio frequency range onto a second audio frequency range so as to produce a mapped audio signal (VM), wherein the second audio frequency range is narrower than the first audio frequency range, and wherein the transducer unit (20) has a maximum efficiency at the second audio frequency range, • filter means (31) for filtering the input signal (V1n) so as to produce a filtered input signal (V1n') having a third audio frequency range, and • combination means (32) for combining the mapped audio signal (VM) and the filtered input signal (V1n') so as to produce a transducer signal (VT). The first audio frequency range is preferably contained in the second audio frequency range, while the third audio frequency range may be adjacent the first audio frequency range. The second audio frequency range preferably extends within 5% of the Helmholtz frequency of the transducer unit (20).

    Abstract translation: 一种用于将音频输入信号(V1n)适配到换能器单元(20)的装置(30)包括:映射装置(10),用于将来自第一音频频率范围的输入信号分量映射到第二音频频率范围,以产生 映射的音频信号(VM),其中所述第二音频频率范围窄于所述第一音频频率范围,并且其中所述换能器单元(20)在所述第二音频频率范围具有最大效率,滤波器装置(31) 信号(V1n),以产生具有第三音频范围的滤波输入信号(V1n'),以及用于组合映射音频信号(VM)和滤波后的输入信号(V1n')的组合装置(32),以便 产生换能器信号(VT)。 第一音频范围优选地包含在第二音频范围中,而第三音频范围可以与第一音频范围相邻。 第二音频范围优选地在换能器单元(20)的亥姆霍兹频率的5%内。

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