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公开(公告)号：WO00047012A3
公开(公告)日：2000-12-21
申请号：PCT/DE2000/000252
申请日：2000-01-28
Abstract: The aim of the invention is to produce a sound generator for eliminating interference by means of sound absorption and for reproducing signals, speech and music. The sound is preferably generated by means of micro- and nanomechanical air pumps (12) whose output flow is controlled by the actuator (16) according to the required sound signal and exits via a sound channel (11); the complementary channel (11') acting on a closed buffer volume (15). As with conventional loudspeaker enclosures, the function of the buffer volume (15) is to make an acoustic monopole radiator out of the ineffective dipole of the sound channel (11) and the channel (11'). In the case of air pumps (12) with high pressure ratios, the necessary buffer volume is correspondingly small. The sound-generating volume flow is measured in the sound channel (11) by means of a micromechanical flowmeter (18) and can be readjusted according to a comparison of the desired value and the actual value. Finally, a bore (19) with a high flow resistance balances out air pressure fluctuations and drift errors in the buffer volume (15).
Abstract translation: 其目标是通过反声和信号，语音和音乐的复制消除干扰的声音发生器。 声音优选由微型和纳米机械式气泵（12）产生。 它们的流量由驱动器（16）根据所需的声音信号控制并通过声道（11）排出; 互补通道（11'）作用于封闭的缓冲容积（15）。 如同常规扬声器一样，缓冲容积（15）具有使声音通道（11）和声道（11'）的无效两极成为声学单极辐射体的功能。 在高压条件下的空气泵（12）中，必要的缓冲容积相应较小。 通过微机械流量计（18），声道（11）中的发声体积流量被测量并且可以根据目标/实际比较来重新调整。 最后，缓冲容积（15）中具有大流阻的孔（19）补偿空气压力波动和漂移误差。
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公开(公告)号：WO01043492A1
公开(公告)日：2001-06-14
申请号：PCT/SE2000/002191
申请日：2000-11-09
Abstract: The invention concerns a pneumatically driven loudspeaker comprising a first chamber (2) having higher pressure than the surroundings (3), where the first chamber has a first opening (6) to the surroundings, and a second chamber (4) having lower pressure than the surroundings (3), where this second chamber has a second opening (9) to the surroundings, whereby the first (6) and the second (9) openings by means of valve mechanisms alternately open and close at a selected frequency, since the valve mechanism consists of at least one flap-like element (5) which with the said frequency swings to and fro, thereby alternately opening and closing both the first opening (6) and the second opening (9).
Abstract translation: 本发明涉及一种气动驱动的扬声器，其包括具有比周围环境（3）更高的压力的第一室（2），其中第一室具有到周围的第一开口（6），以及具有比第二室 周围环境（3），其中该第二室具有到周围的第二开口（9），由此通过阀机构以选定的频率交替地打开和关闭第一（6）和第二（9）开口，因为 阀机构由至少一个襟翼状元件（5）组成，其中所述频率来回摆动，从而交替地打开和关闭第一开口（6）和第二开口（9）。
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公开(公告)号：WO0047012A2
公开(公告)日：2000-08-10
申请号：PCT/DE0000252
申请日：2000-01-28
Applicant: BSCHORR OSKAR , RAIDA HANS JOCHEN
Inventor： BSCHORR OSKAR , RAIDA HANS-JOCHEN
Abstract: The aim of the invention is to produce a sound generator for eliminating interference by means of sound absorption and for reproducing signals, speech and music. The sound is preferably generated by means of micro- and nanomechanical air pumps (12) whose output flow is controlled by the actuator (16) according to the required sound signal and exits via a sound channel (11); the complementary channel (11') acting on a closed buffer volume (15). As with conventional loudspeaker enclosures, the function of the buffer volume (15) is to make an acoustic monopole radiator out of the ineffective dipole of the sound channel (11) and the channel (11'). In the case of air pumps (12) with high pressure ratios, the necessary buffer volume is correspondingly small. The sound-generating volume flow is measured in the sound channel (11) by means of a micromechanical flowmeter (18) and can be readjusted according to a comparison of the desired value and the actual value. Finally, a bore (19) with a high flow resistance balances out air pressure fluctuations and drift errors in the buffer volume (15).
Abstract translation: 我们的目标是通过反声的信号，语音和音乐再现的手段干扰消除的声音发生器。 声音生成优选通过微米和纳米机械空气泵（12）来完成。 其流动由驱动器（16）相应地控制，以经由声音通道（11）所要求的声信号并退出; 所述互补通道（11“）作用的封闭缓冲液体积（15）上。 与传统的扬声器，缓冲体积（15），以使声单极辐射功能，从无效的偶极声通道（11）和通道（11“）。 空气泵（12）与高压力比必要的缓冲容积相应地小。 通过在声音通道的声音产生流的微型机械式流量计（18）的装置（11）被测量和/实际比较可以调整为目标。 最终导致一个孔（19），在缓冲体积（15）的空气的压力波动的均衡流阻大和漂移误差。
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公开(公告)号：WO2014106271A1
公开(公告)日：2014-07-03
申请号：PCT/US2013/078544
申请日：2013-12-31
Applicant: DEFTIO LLC
Inventor： CHATTERJEE, Manjirnath
Abstract: A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.
Abstract translation: 公开了一种流量控制的声音产生系统，其包括一个或多个流体泵，以控制通过声音通道的气流。 通过一个或多个阀调节空气流以产生可听见的频率压力波。
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公开(公告)号：WO01086632A1
公开(公告)日：2001-11-15
申请号：PCT/FR2001/001414
申请日：2001-05-10
IPC: G10K11/178 , B06B1/20 , G10K7/00 , G10K11/16
Abstract: The invention concerns an electro-aero-acoustic source (2), set in a flow (V) or beside a flow, consisting of electrodynamic or electromagnetic motor means (5) generating a reciprocating motion, and a member (3) coupled to the motor means (5), and obstructing the flow so as to exert a dynamic action on said flow. Said source can be used to produce an electro-aero-acoustic system for active noise control, in particular in a confined flow.
Abstract translation: 本发明涉及一种电气声源（2），其设置在流动（V）中或流动旁边，包括产生往复运动的电动或电磁马达装置（5），以及耦合到 马达装置（5），并阻塞流动以对所述流动施加动态作用。 所述源可以用于产生用于主动噪声控制的电 - 空气声学系统，特别是在限制流中。
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Patent Agency Ranking
公开(公告)号：WO2015165043A1
公开(公告)日：2015-11-05
申请号：PCT/CN2014/076500
申请日：2014-04-29
Applicant: 志丰电子股份有限公司
IPC: G10K7/00
CPC classification number: G10K7/00
Abstract: 一种警报器音头，包括：外环座（1）、固定座（2）、扩大部（3）、连接环（4）、压电板（5）以及反射板（6），其中反射板（6）与外环座（1）内侧相距一间距，形成一发声孔（13），反射板（6）与扩大部（3）相距一距离形成一发声道（14），并将该扩大部（3）所送出的声音在该发声道内进行反射并由该发声孔（13）送出，达到放大音量的效果。
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公开(公告)号：WO1996023295A1
公开(公告)日：1996-08-01
申请号：PCT/FR1996000092
申请日：1996-01-19
Applicant: BERTIN & CIE. , GRAS, François, Noël , GERARD, Philippe, Grégoire
Inventor： BERTIN & CIE.
IPC: G10K11/178
CPC classification number: F01N1/065 , G10K7/00 , G10K11/178 , G10K2210/1053 , G10K2210/112 , G10K2210/321 , G10K2210/32121 , G10K2210/3217 , G10K2210/512
Abstract: A device including an acoustic wave generator (10) and means (2 or 2', 4, 11) for controlling the generator (10) to transmit acoustic waves in phase opposition to the acoustic waves of the noise. Said generator (10) is an acoustic amplifier in which a pressurised fluid flow interacts with a movable obstacle (15) controlled by said means (2 or 2', 4, 11). Said generator (10) is advantageously a pneumatic loudspeaker. The device is useful for controlling noise in a harsh and/or polluting environment.
Abstract translation: 一种包括声波发生器（10）的装置和用于控制发生器（10）以与声音的声波相反地传播声波的装置（2或2'，4,11）。 所述发生器（10）是声学放大器，其中加压流体流与由所述装置（2或2'，4,11）控制的可移动障碍物（15）相互作用。 所述发电机（10）有利地是气动扬声器。 该设备可用于在恶劣和/或污染环境中控制噪音。
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公开(公告)号：WO2019037204A1
公开(公告)日：2019-02-28
申请号：PCT/CN2017/104691
申请日：2017-09-30
Applicant: 深圳职业技术学院
IPC: G10L19/00
CPC classification number: G06K9/2054 , G10K7/00 , G10L19/0017 , G10L19/018 , G10L19/20 , H04R3/00
Abstract: 一种汽车鸣笛编码系统，包括鸣笛编码器，所述鸣笛编码器接入汽车喇叭的控制回路，用于将汽车的车辆识别码采用预设的编码规则调制到所述汽车的鸣笛声音中。该汽车鸣笛编码系统还包括车辆识别码加密器，车辆识别码加密器与所述鸣笛编码器通讯连接，用于获取汽车的车辆识别码，并将获取的所述汽车的车辆识别码传输至所述鸣笛编码器。该系统可以实现在禁止鸣笛的路段抓取鸣笛车辆的声音编码，对鸣笛车辆进行准确识别。
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公开(公告)号：WO2014035715A1
公开(公告)日：2014-03-06
申请号：PCT/US2013/055665
申请日：2013-08-20
Applicant: TSENG, Ho, Ping
Inventor： TSENG, Ho, Ping
IPC: B06B1/18
CPC classification number: G10K7/00
Abstract: To reproduce sound in an extremely compact size, fluid injectors are used that can generate fluid flow sufficient to create a desired acoustic pressure wave, but which fluid flow operates in a manner that is decoupled from the desired acoustic pressure wave. Fluid flow within the fluid injectors needed to generate the desired acoustic pressure wave need not be directly proportional to the frequencies of the desired acoustic pressure wave. The fluid injector has a control input capable of altering fluid flow relative to a received control signal, which is generated by a controller in response to an electrical signal. The fluid injector produces fluid flow outward and inward in response to the control signal, thereby creating an acoustic wave proportional to the electrical signal. The devices herein may employ valves or not. Synthetic jets may also be used.
Abstract translation: 为了以非常紧凑的尺寸再现声音，使用流体注射器，其可以产生足以产生所需声压波的流体流，但是哪种流体流以与期望的声压波分离的方式操作。 产生所需声压波所需的流体注入器内的流体流不需要与所需声压波的频率成正比。 流体注射器具有能够响应于电信号由控制器产生的相对于所接收的控制信号改变流体流动的控制输入。 流体注射器响应于控制信号而向外和向内产生流体流，从而产生与电信号成比例的声波。 这里的装置可以使用阀或不使用阀。 也可以使用合成射流。
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公开(公告)号：WO99053720A1
公开(公告)日：1999-10-21
申请号：PCT/SE1999/000586
申请日：1999-04-09
CPC classification number: G10K7/00
Abstract: The invention presented here refers to a pneumatically driven loudspeaker, comprising at least one first chamber (1, 62) having higher pressure than the surroundings and with at least one first opening (8, 61) to the surroundings. The loudspeaker in addition comprises a second chamber (2, 64) with lower pressure than the surroundings and with at least one second opening (9, 63) to the surroundings. The first and the second openings can by means of valve mechanisms (3, 65, 91, 92) alternately open and close at a selected frequency, resulting in pressure fluctuations which give rise to sound of the desired frequency. The loudspeaker according to the invention can be used in hi-fi applications as well as in active noise suppression in jet engines, in ventilation systems, in gas turbine outlets and in exhaust systems in combustion engines.
Abstract translation: 本文提出的本发明涉及一种气动驱动扬声器，包括至少一个具有比周围环境压力高的第一腔室（1,62）以及至少一个围绕周围环境的第一开口（8,61）。 扬声器还包括具有比周围环境更低的压力并且具有至少一个第二开口（9,63）的第二室（2,64）。 第一和第二开口可以通过阀机构（3,65,91,92）以选定的频率交替地打开和关闭，导致产生所需频率的声音的压力波动。 根据本发明的扬声器可以用于高保真应用以及在喷气发动机，通风系统，燃气涡轮机出口和内燃机中的排气系统中的主动噪声抑制。
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