公开(公告)号：US20160234619A1

公开(公告)日：2016-08-11

申请号：US15099758

申请日：2016-04-15

Applicant: Infineon Technologies AG

Inventor： Shu-Ting Hsu ,  Alfons Dehe

IPC: H04R31/00 ,  H04R19/01

CPC classification number: H04R31/006 ,  H04R1/02 ,  H04R9/048 ,  H04R19/005 ,  H04R19/013 ,  H04R2201/003 ,  H04R2201/029

Abstract: A sound transducer includes a substrate with a cavity with extending from a first surface of the substrate, a body at least partially covering the cavity and being connected to the substrate by at least one resilient hinge, a first set of comb fingers mounted to the substrate, and a second set of comb fingers mounted to the body. The first set of comb fingers and the second set of comb fingers are interdigitated and configured to create an electrostatic force driving the body in a direction perpendicular to the first surface of the substrate. The body and the at least one resilient hinge are configured for a resonant or a near-resonant excitation by the electrostatic force.

公开(公告)号：US09031266B2

公开(公告)日：2015-05-12

申请号：US13270613

申请日：2011-10-11

Applicant: Alfons Dehe ,  Mohsin Nawaz ,  Christoph Glacer

Inventor： Alfons Dehe ,  Mohsin Nawaz ,  Christoph Glacer

IPC: H04R25/00 ,  H04R3/00 ,  H04R1/00 ,  H04R9/06 ,  H04R11/02 ,  H04R19/02 ,  H04R19/01 ,  H04R7/04

CPC classification number: H04R19/02 ,  H04R7/04 ,  H04R19/013 ,  H04R2201/003 ,  Y10T29/49005

Abstract: An electrostatic loudspeaker comprises a membrane structure and an electrode structure. The membrane structure comprises a central membrane portion and a circumferential membrane portion. The electrode structure is configured to electrostatically interact with the membrane structure for causing a movement of the membrane structure along an axis of movement. The electrode structure comprises a circumferential electrode portion and an opening, the circumferential electrode portion being substantially aligned to the circumferential membrane portion and the opening being substantially aligned to the central membrane portion with respect to a direction parallel to the axis of movement. In an end position of the movement of the membrane structure, the central membrane portion is configured to extend at least partially through the opening. A method for operating an electrostatic loudspeaker and a method for manufacturing an electrostatic loudspeaker are also described.

Abstract translation: 静电扬声器包括膜结构和电极结构。 膜结构包括中央膜部分和周向膜部分。 电极结构被配置为与膜结构静电相互作用以引起膜结构沿着运动轴线的移动。 电极结构包括周向电极部分和开口，周向电极部分基本上对齐于周向膜部分，并且开口基本上与中心膜部分相对于平行于运动轴线的方向对准。 在膜结构的运动的结束位置中，中心膜部分构造成至少部分延伸穿过开口。 还描述了用于操作静电扬声器的方法和用于制造静电扬声器的方法。

公开(公告)号：US20150098592A1

公开(公告)日：2015-04-09

申请号：US14312002

申请日：2014-06-23

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R19/01 ,  H04R31/00

CPC classification number: H04R19/01 ,  H04R1/10 ,  H04R7/00 ,  H04R19/013 ,  H04R19/016 ,  H04R31/00 ,  Y10T29/49005

Abstract: In an electrodynamic acoustic transducer which uses a surface potential of an electret dielectric film as a polarization voltage, prevention of partial suctional adhesion of a diaphragm caused by variation in surface potential across the electret dielectric film is ensured in a simple way. In an electrodynamic acoustic transducer including a diaphragm and a fixed pole which are arranged with a predetermined interval so as to face each other, a facing surface of either one of the diaphragm and the fixed pole having an electret dielectric film, a surface of the electret dielectric film is divided into a plurality of segment regions, and a predetermined surface potential is given to each of the segment regions by a polarization processing unit.

Abstract translation: 在使用驻极体电介质膜的表面电位作为极化电压的电动式声学换能器中，以简单的方式确保了由驻极体电介质膜两端的表面电位的变化引起的隔膜的部分吸附粘附的防止。 在包括隔膜和固定极的电动式声学换能器中，其以预定间隔彼此相对地布置，所述隔膜和固定极中的任一个的相对表面具有驻极体介电膜，驻极体的表面 电介质膜被分割为多个区域区域，并且通过偏振处理单元向每个区段区域赋予预定的表面电位。

公开(公告)号：US08699740B2

公开(公告)日：2014-04-15

申请号：US13189202

申请日：2011-07-22

Applicant: Hsin-Yuan Chiang ,  Chuan-Chun Ma

Inventor： Hsin-Yuan Chiang ,  Chuan-Chun Ma

IPC: H04R25/00

CPC classification number: H04R1/1075 ,  H04R1/1008 ,  H04R19/013 ,  Y10T29/49005

Abstract: A headphone sound-generating structure includes a sound-generating module and a plurality fastening elements. The sound-generating module includes a first perforated plate, a first ring-shaped spacer, a diaphragm assembly, a second ring-shaped spacer, a second perforated plate, and a second ring-shaped mounting frame, which are sequentially superposed in a receiving space defined on an ear cup. The fastening elements are extended through third mounting holes of the second ring-shaped mounting frame and fourth mounting holes of the ear cup to thereby quickly secure the sound-generating module to the ear cup to complete a headphone sound-generating structure, which can be manufactured at lowered cost and increased good yield, and allows convenient maintenance without wasting any material. A method of assembling the headphone sound-generating structure is also introduced.

Abstract translation: 耳机发声结构包括声音发生模块和多个紧固元件。 发声模块包括第一多孔板，第一环形间隔件，隔膜组件，第二环形间隔件，第二多孔板和第二环形安装框架，其顺序地重叠在接收件 在耳杯上定义的空间。 紧固元件通过第二环形安装框架的第三安装孔和耳罩的第四安装孔延伸，从而将发声模块快速固定到耳罩，以完成耳机发声结构，其可以是 制造成本低，成品率高，并且可以方便维护而不浪费任何材料。 还介绍了组装耳机发声结构的方法。

公开(公告)号：US08699730B2

公开(公告)日：2014-04-15

申请号：US13586866

申请日：2012-08-16

Applicant: Chih-Kung Lee ,  Yu-Chi Chen ,  Han-Lung Chen ,  Hsu-Ching Liao ,  Wen-Hsin Hsiao

Inventor： Chih-Kung Lee ,  Yu-Chi Chen ,  Han-Lung Chen ,  Hsu-Ching Liao ,  Wen-Hsin Hsiao

IPC: H04R19/01

CPC classification number: H04R19/013

Abstract: An electret loudspeaker device including a diaphragm, a first perforated electrode and a first spacer is provided. The diaphragm has an electret layer and an electrode layer. The first perforated electrode is stacked on a side of the diaphragm near the electret layer, and has multiple holes. The first spacer is stacked between the diaphragm and the first perforated electrode, and includes a first distribution area and plural second distribution areas. The first distribution area has first openings penetrating through the first spacer, and each first opening has a first opening space volume between the diaphragm and the first perforated electrode. Each second distribution area has second openings penetrating through the first spacer, and each second opening has a second opening space volume between the diaphragm and the first perforated electrode. A difference between the first and the second opening space volumes is greater than 10%.

Abstract translation: 提供了包括隔膜，第一穿孔电极和第一间隔件的驻极体扬声器装置。 隔膜具有驻极体层和电极层。 第一穿孔电极层叠在靠近驻极体层的隔膜的一侧，并且具有多个孔。 第一间隔件层叠在隔膜和第一穿孔电极之间，并且包括第一分配区域和多个第二分布区域。 第一分配区域具有穿过第一间隔件的第一开口，并且每个第一开口在隔膜和第一穿孔电极之间具有第一开口空间体积。 每个第二分配区域具有穿过第一间隔件的第二开口，并且每个第二开口在隔膜和第一穿孔电极之间具有第二开口空间体积。 第一和第二开放空间体积之间的差异大于10％。

公开(公告)号：US20140093089A1

公开(公告)日：2014-04-03

申请号：US14030584

申请日：2013-09-18

Applicant: STMicroelectronics S.r.I.

Inventor： Alessandro Gasparini ,  Daniele Depascalis

IPC: H04R3/00

CPC classification number: H04R3/00 ,  H04R19/013 ,  H04R29/001

Abstract: A MEMS speaker device including a membrane that forms a first capacitor and a second capacitor, respectively, with a top plate and with a bottom plate. The device includes a driving circuit that operates, during a first operating period, to move the membrane into a first position, in which the membrane is close to the bottom plate, and during a second operating period, to move the membrane into a second position, in which the membrane is close to the top plate. The device includes a testing circuit having a measuring circuit, which generates a first signal, based on a capacitance of one of the first capacitor and the second capacitor and a second signal based on a capacitance of one of the first capacitor and the second capacitor; and a comparator, which compares the first and second signals with at least one first electrical reference quantity.

Abstract translation: 一种MEMS扬声器装置，包括分别与顶板和底板形成第一电容器和第二电容器的膜。 该装置包括驱动电路，该驱动电路在第一操作期间操作以将膜移动到第一位置，其中膜靠近底板，并且在第二操作期间，将膜移动到第二位置 ，其中膜接近顶板。 该装置包括具有测量电路的测试电路，其基于第一电容器和第二电容器之一的电容产生第一信号，基于第一电容器和第二电容器之一的电容产生第二信号; 以及比较器，其将第一和第二信号与至少一个第一电参考量进行比较。

公开(公告)号：US20140013581A1

公开(公告)日：2014-01-16

申请号：US14031455

申请日：2013-09-19

Applicant: Taiwan Electrets Electronics Co., Ltd.

Inventor： Dar-Ming CHIANG ,  Jen-Luan CHEN ,  I-Hui LIN

IPC: H04R31/00

CPC classification number: H04R31/00 ,  H04R19/013

Abstract: An electrostatic speaker and a method for manufacturing the speaker are disclosed. Said speaker comprises a vibrating film; an electrode portion disposed on a surface of the vibrating film and joined with the vibrating film; and a conductive backplate spaced from the electrode portion by a distance, the conductive backplate forming a plurality of holes, the vibrating film being deformed and vibrated to generate and release a sound through the holes due to a variation of an electric field generated between the conductive backplate and the electrode portion, wherein the conductive backplate is covered by a polymer layer serving as a protective film. The covering polymer layer on the conductive backplate is capable of improving the stability of the electrostatic speaker and increasing its lifespan.

Abstract translation: 公开了一种静电扬声器及其制造方法。 所述扬声器包括振动膜; 设置在所述振动膜的表面并与所述振动膜接合的电极部; 以及与电极部隔开一段距离的导电背板，导电背板形成多个孔，振动膜变形并振动，以产生并释放通过孔的声音，这是由于导电之间产生的电场的变化 背板和电极部分，其中导电背板由用作保护膜的聚合物层覆盖。 导电背板上的覆盖聚合物层能够改善静电扬声器的稳定性并延长其使用寿命。

公开(公告)号：US20140010388A1

公开(公告)日：2014-01-09

申请号：US13922100

申请日：2013-06-19

Applicant: Canon Kabushiki Kaisha

Inventor： Takahiro Akiyama ,  Kazutoshi Torashima

IPC: H04R19/01 ,  G01H11/06

CPC classification number: H04R19/013 ,  B06B1/0292 ,  G01H11/06 ,  G01N29/2406 ,  G01N29/348 ,  H04R19/005 ,  H04R23/008 ,  H04R31/00

Abstract: Provided is a capacitive transducer having broadband frequency characteristics. The capacitive transducer includes an element which has multiple kinds of cells, each cell including: a first electrode; a vibrating film including a second electrode, the second electrode being opposed to the first electrode with a gap; and a support portion that supports the vibrating film so as to form the gap. The multiple kinds of cells have different ratios of an area of one of the first electrode and the second electrode to an area of the gap when viewed from a normal direction of the vibrating film. The first electrodes or the second electrodes in the multiple kinds of cells are electrically connected together.

Abstract translation: 提供了具有宽带频率特性的电容式换能器。 电容换能器包括具有多种单元的元件，每个单元包括：第一电极; 振动膜，其包括第二电极，所述第二电极与所述第一电极相对，具有间隙; 以及支撑所述振动膜以形成间隙的支撑部。 当从振动膜的法线方向观察时，多种单元具有不同的第一电极和第二电极之一的面积与间隙的面积的比率。 多种单元中的第一电极或第二电极电连接在一起。

公开(公告)号：US08503702B2

公开(公告)日：2013-08-06

申请号：US12909842

申请日：2010-10-22

Applicant: Che-I Kao ,  Chih-Kung Lee ,  Wen-Ching Ko ,  Chang-Ho Liou ,  Ing-Yih Leu ,  Ming-Daw Chen ,  Yi-Jen Chan ,  Chien-Kai Tseng

Inventor： Che-I Kao ,  Chih-Kung Lee ,  Wen-Ching Ko ,  Chang-Ho Liou ,  Ing-Yih Leu ,  Ming-Daw Chen ,  Yi-Jen Chan ,  Chien-Kai Tseng

IPC: H04R25/00 ,  H04R7/00

CPC classification number: H04R19/013 ,  H04R2499/13

Abstract: An electret diaphragm and a speaker using the same are provided. The electret diaphragm includes an electret layer, a bonding layer adhered to a surface of the electret layer, and an aluminum (Al) electrode layer adhered on the bonding layer. The electret layer at least includes ethylene group polymer. A material of the bonding layer is ethylene-ethyl-acrylate (EEA) or ethylene-vinyl acetate (EVA).

Abstract translation: 提供驻极体膜片和使用其的扬声器。 驻极体隔膜包括驻极体层，粘附到驻极体层的表面的接合层和粘附在接合层上的铝（Al）电极层。 驻极体层至少包括亚乙基聚合物。 接合层的材料是乙烯 - 丙烯酸乙酯（EEA）或乙烯 - 乙酸乙烯酯（EVA）。

公开(公告)号：US08391520B2

公开(公告)日：2013-03-05

申请号：US12541145

申请日：2009-08-13

Applicant: Chang-Ho Liou ,  Ming-Daw Chen

Inventor： Chang-Ho Liou ,  Ming-Daw Chen

IPC: H04R25/00

CPC classification number: H04R19/013 ,  H04R1/023

Abstract: A reliable flat speaker unit and a speaker device with the same are provided herein. A conductive electrode of a vibrating membrane of the speaker unit is disposed on both utmost sides of the speaker unit to isolate the speaker unit from environmental moisture, which can significantly improve the reliance of the speaker device. A barrier layer can optionally be disposed on the external side of the conductive electrode to further isolating the speaker unit from moisture, which can improve the reliance and the lifetime of the speaker device. In an embodiment, at least a getter is disposed inside the flat speaker unit to absorb moisture therein. The speaker unit at least includes a electret vibrating membrane with a conductive electrode, a plurality of supporting members, and a electrode structure with a plurality of holes.

Abstract translation: 本发明提供了一种可靠的平板扬声器单元及其扬声器装置。 扬声器单元的振动膜的导电电极设置在扬声器单元的两侧，以将扬声器单元与环境水分隔离，这可以显着提高扬声器装置的依赖性。 可以可选地在导电电极的外侧设置阻挡层，以进一步将扬声器单元与水分隔离，这可以提高扬声器装置的依赖性和寿命。 在一个实施例中，至少吸气剂设置在平板扬声器单元的内部以吸收其中的水分。 扬声器单元至少包括具有导电电极的驻极体振动膜，多个支撑构件和具有多个孔的电极结构。