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1. 发明申请

WO2012156753A1 ELECTROSTATIC TRANSDUCER 审中-公开
标题翻译：静电传感器
公开(公告)号：WO2012156753A1
公开(公告)日：2012-11-22
申请号：PCT/GB2012/051130
申请日：2012-05-18
申请人： WARWICK AUDIO TECHNOLOGIES LIMITED , ATKINS, Brian , BILLSON, Duncan , HOARE, David
发明人： ATKINS, Brian , BILLSON, Duncan , HOARE, David
IPC分类号： H04R19/02 , H04R7/08
CPC分类号： H04R19/02 , H04R7/08 , H04R19/04 , H04R23/006 , H04R2201/003
摘要： An electrostatic transducer comprises an electrically conductive first layer (1), a flexible insulating second layer (25) disposed over the first layer, and a flexible electrically conductive third layer (26) disposed over the second layer. Between the first and the second layers are provided spacers (24) and between the second and the third layers are provided spacers (27). The spacers may be provided by strips of adhesive or by bonding the layers together by welding, for example. The first layer (1) is provided with an array of through apertures (5) each having an inlet (6) facing the second layer (2) and an outlet (7). In response to signals applied to the first and third layers, the second and third layers have portions which are displaced towards the outlets of the apertures by electrostatic forces. The apertures (5) may have conducting walls and the walls may converge.
摘要翻译：静电换能器包括导电的第一层（1），设置在第一层之上的柔性绝缘的第二层（25）和设置在第二层上的柔性导电的第三层（26）。在第一和第二层之间设置间隔物（24），并且在第二和第三层之间设置间隔物（27）。间隔物可以由粘合剂条提供，或者通过例如焊接将层粘合在一起。第一层（1）设置有每个具有面向第二层（2）的入口（6）和出口（7）的通孔（5）的阵列。响应于施加到第一和第三层的信号，第二和第三层具有通过静电力朝向孔的出口移位的部分。孔（5）可以具有导电壁并且壁会聚。

2. 发明申请

WO2015121641A1 IMPROVED ELECTROSTATIC TRANSDUCER 审中-公开
标题翻译：改进的静电传感器
公开(公告)号：WO2015121641A1
公开(公告)日：2015-08-20
申请号：PCT/GB2015/050375
申请日：2015-02-11
申请人： WARWICK AUDIO TECHNOLOGIES LIMITED
发明人： BILLSON, Duncan , ATKINS, Brian , WALSH, Kevin
IPC分类号： H04R19/02
CPC分类号： H04R19/02 , H04R19/005 , H04R2201/403
摘要： An electrostatic transducer (100) comprises an electrically conductive backplane member (102) having an array of through apertures (112); a spacer member (104) disposed over the backplane member (102), the spacer member (104) having an array of holes (114) therethrough, the holes (114) each having a maximum lateral dimension less than twice a minimum lateral dimension; and a flexible electrically conductive membrane (106) disposed over the spacer member (104). The transducer (100) is arranged in use to apply an electrical potential which gives rise to an attractive electrostatic force between the backplane member (102) and the membrane (106) thereby moving portions of the membrane (106) spanning said holes in the spacer member (104) towards said backplane member (102).
摘要翻译：静电换能器（100）包括具有通孔阵列（112）的导电底板部件（102）。设置在所述背板构件（102）上的间隔构件（104），所述间隔构件（104）具有穿过其中的孔阵列（114），所述孔（114）各自具有小于最小横向尺寸的两倍的最大横向尺寸; 以及设置在间隔件（104）上方的柔性导电膜（106）。传感器（100）在使用中被布置为施加电位，其在背板构件（102）和膜（106）之间产生有吸引力的静电力，从而移动跨过间隔件中的所述孔的膜（106）的部分（104）朝向所述背板构件（102）。

3. 发明申请

WO2015121638A1 IMPROVED ELECTROSTATIC TRANSDUCER 审中-公开
标题翻译：改进的静电传感器
公开(公告)号：WO2015121638A1
公开(公告)日：2015-08-20
申请号：PCT/GB2015/050372
申请日：2015-02-11
申请人： WARWICK AUDIO TECHNOLOGIES LIMITED
发明人： BILLSON, Duncan , ATKINS, Brian , WALSH, Kevin
IPC分类号： H04R7/14 , H04R19/02
CPC分类号： H04R19/02 , H04R7/14
摘要： An electrostatic transducer (100) comprises an electrically conductive first member (102) having an array of through apertures (1 12) and one or more further members (104, 106). The one or more further members (104, 106) include a flexible electrically conductive second member (106) arranged in use to be displaced from an equilibrium position towards the first member (102) by an electrostatic force in response to an electrical potential applied to one or both of the first member (102) and the second member (106). At least one (104) of the one or more further members is resiliently deformable and is arranged in use to exert a resilient biasing force biasing said second member (106) back towards said equilibrium position when displaced therefrom by said electrical potential.
摘要翻译：静电换能器（100）包括具有通孔（112）和一个或多个另外的构件（104,106）阵列的导电第一构件（102）。所述一个或多个另外的构件（104,106）包括柔性导电第二构件（106），所述柔性导电第二构件（106）被布置成在使用中通过响应于施加到...的电位的静电力而从平衡位置朝向第一构件（102）第一构件（102）和第二构件（106）中的一个或两个。所述一个或多个另外的构件中的至少一个（104）可弹性变形，并且在使用中被布置成施加弹性偏压力，所述弹性偏置力将所述第二构件（106）从所述电位移位时朝向所述平衡位置偏置。

4. 发明申请

WO2007077438A1 ELECTROSTATIC LOUDSPEAKERS 审中-公开
标题翻译：静电扬声器
公开(公告)号：WO2007077438A1
公开(公告)日：2007-07-12
申请号：PCT/GB2006/050468
申请日：2006-12-19
申请人： WARWICK AUDIO TECHNOLOGIES LIMITED , MEDLEY, Andrew, Peter , BILLSON, Duncan, Robert
发明人： MEDLEY, Andrew, Peter , BILLSON, Duncan, Robert
IPC分类号： H04R19/02
CPC分类号： H04R19/02 , H04R29/00
摘要： An electrostatic loudspeaker comprises a multi-layer panel (1) incorporating an electrically insulating middle layer (2) sandwiched between first and second electrically conducting outer layers (3, 4). A signal generator is provided for applying an alternating electrical voltage across the outer layers (3, 4) to initiate vibration due to variation of the electrostatic forces acting between the layers, thereby serving as a loudspeaker. Furthermore at least one of the outer layers (3, 4) is permeable to air displaced by such vibration. Such a loudspeaker can serve as a low cost audio loudspeaker which can be made lightweight and flexible or large-area so as to render it suitable for a wide range of applications, for example to provide sound reproduction in a home environment without requiring any bulky enclosure, public-address systems, or in a notebook computer or mobile telephone.
摘要翻译：静电扬声器包括多层面板（1），其包含夹在第一和第二导电外层（3,4）之间的电绝缘中间层（2）。提供信号发生器，用于跨越外层（3,4）施加交变电压，以由于作用在层之间的静电力的变化而引起振动，由此用作扬声器。此外，外层（3,4）中的至少一个对通过这样的振动而移动的空气是可透过的。这样的扬声器可以用作低成本的音频扬声器，其可以制成轻便和灵活或大面积，以使其适合于广泛的应用，例如在家庭环境中提供声音再现，而不需要任何庞大的外壳，公共地址系统，或在笔记本电脑或移动电话中。

5. 发明申请

WO2012156754A1 AMPLIFIER FOR ELECTROSTATIC TRANSDUCERS 审中-公开
标题翻译：用于静电传感器的放大器
公开(公告)号：WO2012156754A1
公开(公告)日：2012-11-22
申请号：PCT/GB2012/051132
申请日：2012-05-18
申请人： WARWICK AUDIO TECHNOLOGIES LIMITED , ATKINS, Brian , BILLSON, Duncan , HOARE, David
发明人： ATKINS, Brian , BILLSON, Duncan , HOARE, David
IPC分类号： H03F3/217 , H04R19/02
CPC分类号： H03F3/2171 , H03F3/217 , H03F2203/21193 , H04R19/02
摘要： A class D audio amplifier which provides both an alternating signal and a DC bias voltage to an electrostatic transducer (9). The amplifier comprises an input module (1) for generating a modulated sequence of pulses in response to an input audio signal, and an output module (3) for amplifying the sequence of pulses, which includes high speed switching output transistors (4, 5). A power supply (6) provides a supply voltage to the switching output transistors (4,5). A low pass filter (8) receives the amplified sequence of pulses and generates an output signal for the transducer. The amplified sequence of pulses from the output module (3) is fed to a voltage multiplier module (10) which provides a constant bias voltage for the electrostatic transducer.
摘要翻译： D类音频放大器，其向静电换能器（9）提供交流信号和DC偏置电压。放大器包括用于响应于输入音频信号产生调制脉冲序列的输入模块（1）和用于放大脉冲序列的输出模块（3），其包括高速开关输出晶体管（4,5）。电源（6）向开关输出晶体管（4,5）提供电源电压。低通滤波器（8）接收放大的脉冲序列并产生用于换能器的输出信号。来自输出模块（3）的放大的脉冲序列被馈送到电压倍增器模块（10），其为静电换能器提供恒定的偏置电压。

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