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    • 4. 发明申请
    • VENTED LOUDSPEAKER SYSTEM
    • 通风扬声器系统
    • WO2009118677A1
    • 2009-10-01
    • PCT/IB2009/051203
    • 2009-03-23
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.AARTS, Ronaldus, M.NIEUWENDIJK, Joris, A., M.OUWELTJES, Okke
    • AARTS, Ronaldus, M.NIEUWENDIJK, Joris, A., M.OUWELTJES, Okke
    • H04R1/28
    • H04R1/2826
    • A vented loudspeaker system comprises a cabinet (CA) with a bass port (BP) and a loudspeaker (LS) creating an air pressure in the cabinet (CA) in response to an audio signal(DS). At least part of the bass port (IP) is moveably arranged with respect to the cabinet (CA) to vary a frequency response of the vented loudspeaker system. The air pressure causes an alternating airflow through the bass port (BP) thereby generating an alternating force acting on the at least part of the bass port (IP). The system further comprises means (AS, RE) for applying a direction dependent passive force or for modifying the alternating force on the at least part of the bass port (IP) to obtain a total non-zero average force acting on the at least part of the bass port (IP) in one direction for moving the at least part of the bass port (IP) in the one direction.
    • 通风扬声器系统包括具有低音端口(BP)的机柜(CA)和扬声器(LS),以响应于音频信号(DS)在橱柜(CA)中产生空气压力。 低音端口(IP)的至少一部分相对于机柜(CA)可移动地布置,以改变通风扬声器系统的频率响应。 空气压力导致通过低音端口(BP)的交替气流,从而产生作用在低音端口(IP)的至少一部分上的交替力。 该系统还包括用于施加取向方向的被动力或用于在低音端口(IP)的至少部分上修改交替力以获得作用在至少部分上的总非零平均力的装置(AS,RE) 的低音端口(IP)在一个方向上,用于在一个方向上移动低音端口(IP)的至少一部分。
    • 5. 发明申请
    • AN AUDIO DRIVER
    • 音频驱动器
    • WO2010116322A1
    • 2010-10-14
    • PCT/IB2010/051481
    • 2010-04-06
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.NXP B.V.OUWELTJES, OkkeNIEUWENDIJK, Joris, A., M.KOOIJMAN, Gerben, K.AARTS, Ronaldus, M.
    • OUWELTJES, OkkeNIEUWENDIJK, Joris, A., M.KOOIJMAN, Gerben, K.AARTS, Ronaldus, M.
    • H04R9/02
    • H04R9/022
    • An audio driver comprising a diaphragm (101, 103) with a first side and a second side. The diaphragm (101, 103) is coupled to a transducer element (109, 111) on the second side and is arranged to radiate sound. The transducer element (109, 111) converts an electrical input signal into movement of the diaphragm (101, 103). The diaphragm (101, 103) is arranged such that a part of the diaphragm (103) at least partly forms a cavity (113) at the second side and an air conduit (115) is coupled to the cavity (113). The air conduit (115) has a first opening (117) into the cavity and a second opening (119) outside the cavity (113). The air conduit (115) and cavity (113) form a resonator which has a resonance frequency that is less than half a free air acoustic resonance frequency of the audio driver. The invention may allow simultaneous sound production and an acoustic air flow generation while maintaining an efficient decoupling between the two functionalities.
    • 一种音频驱动器,包括具有第一侧和第二侧的隔膜(101,103)。 隔膜(101,103)耦合到第二侧上的换能器元件(109,111),并且被布置成辐射声音。 换能器元件(109,111)将电输入信号转换成隔膜(101,103)的移动。 隔膜(101,103)被布置成使得隔膜(103)的一部分在第二侧至少部分地形成空腔(113),并且空气管道(115)联接到空腔(113)。 空气管道(115)具有进入空腔的第一开口(117)和腔体(113)外部的第二开口(119)。 空气管道(115)和空腔(113)形成共振频率小于音频驱动器的自由空气声共振频率的一半的谐振器。 本发明可以允许在保持两个功能之间的有效解耦的同时产生声音和产生声气流。
    • 7. 发明申请
    • A LOUDSPEAKER ARRANGEMENT
    • 一个扬声器安排
    • WO2010015976A2
    • 2010-02-11
    • PCT/IB2009/053337
    • 2009-07-31
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.OUWELTJES, OkkeKOOIJMAN, GerbenNIEUWENDIJK, Joris, A., M.AARTS, Ronaldus, M.
    • OUWELTJES, OkkeKOOIJMAN, GerbenNIEUWENDIJK, Joris, A., M.AARTS, Ronaldus, M.
    • H04R1/28
    • H04R1/2834H04R1/2811H04R1/2819
    • 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.
    • 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。
    • 8. 发明申请
    • EFFICIENT AUDIO REPRODUCTION
    • 有效的音频制作
    • WO2007086000A2
    • 2007-08-02
    • PCT/IB2007/050224
    • 2007-01-23
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.AARTS, Ronaldus, M.NIEUWENDIJK, Joris, A., M.OUWELTJES, Okke
    • AARTS, Ronaldus, M.NIEUWENDIJK, Joris, A., M.OUWELTJES, Okke
    • H04R3/04
    • H04R3/04
    • 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).
    • 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。
    • 10. 发明申请
    • GENERATION OF A DRIVE SIGNAL FOR A SOUND TRANSDUCER
    • 用于声传感器的驱动信号的产生
    • WO2009113016A1
    • 2009-09-17
    • PCT/IB2009/050979
    • 2009-03-09
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.OUWELTJES, OkkeAARTS, Ronaldus, M.
    • OUWELTJES, OkkeAARTS, Ronaldus, M.
    • H04R3/04H04R29/00
    • H04R3/04
    • An apparatus for generating a drive signal for a sound transducer comprises an input processor (101) for receiving an input signal. A drive processor (103) is arranged to generate the drive signal from the input signal and a sound level processor (107) determines a sound level indication for the sound transducer. The sound level indication is directly or indirectly dependent on the input signal. The drive processor (103) furthermore comprises a frequency compressor (305) which is arranged to perform a frequency compression of a first frequency interval of the input signal to a second frequency interval corresponding to a resonance frequency of the sound transducer in response to the sound level indication. The frequency compression may allow increased sound levels for a given physical size of the sound transducer and the adaptation of the frequency compression to the sound levels may allow improved audio quality, especially at lower sound levels.
    • 用于产生声换能器的驱动信号的装置包括用于接收输入信号的输入处理器(101)。 驱动处理器(103)被布置成从输入信号产生驱动信号,声级处理器(107)确定声音换能器的声级指示。 声级指示直接或间接依赖于输入信号。 驱动处理器(103)还包括频率压缩器(305),频率压缩器(305)被布置成响应于声音执行对输入信号的第一频率间隔的频率压缩到对应于声换能器的共振频率的第二频率间隔 水平指示。 频率压缩可以允许声音换能器的给定物理尺寸的增加的声级,并且频率压缩对声级的适应可以允许改善的音频质量,特别是在较低的声级。