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11. 发明授权

US10440479B2 Electroacoustic device and mobile terminal 有权
公开(公告)号：US10440479B2
公开(公告)日：2019-10-08
申请号：US15998978
申请日：2018-08-17
申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
发明人： Bixiang Yan
IPC分类号： H04R1/28 , H04R1/02 , H04R9/00 , H04R9/06 , H04M1/03 , H04R9/02
摘要： An electroacoustic device and a mobile terminal are provided. The electroacoustic device may include a box defining an opening; an electroacoustic component including a frame, a vibrating membrane and a driving assembly, whet the frame is installed inside the box, the vibrating membrane is assembled on the thine and covers the opening, the frame and the vibrating membrane define a chamber, the driving assembly is configured to drive the vibrating membrane to vibrate, and the frame defines a leaking channel, and partition nets set inside the box, wherein a space between the electroacoustic component and the box is divided into cavities by the partition nets, at least one cavity is filled with sound absorption material, and the cavities are communicated with the chamber through the leaking channel.

12. 发明授权

US10250961B2 Speaker module 有权
公开(公告)号：US10250961B2
公开(公告)日：2019-04-02
申请号：US15570542
申请日：2015-12-14
申请人： Goertek.Inc
发明人： Zhibing Zhang , Gang Chen
IPC分类号： H04R9/00 , H04R1/02 , H04R9/06 , H04R9/02 , H04R9/04 , H04R1/28 , H04R1/22
摘要： A speaker module is disclosed, which comprises an inner cavity defined by a shell, and a magnetic circuit system and a vibrating system arranged inside the inner cavity, wherein the vibrating system comprises a vibrating diaphragm fixed in the inner cavity, a voice coil is fixed to a lower end of the vibrating diaphragm, a first induction coil is provided to an upper end of the vibrating diaphragm, the voice coil is electrically connected with the first induction coil via its down-lead, and a second induction coil is provided above the first induction coil for electrically connecting a terminal device. When the speaker module operates, the terminal device conducts a current signal of an external audio to the second induction coil, so that the second induction coil generates a magnetic field which changes along with the change of the audio signal current.

13. 发明授权

US10178481B2 Sound producing device 有权
公开(公告)号：US10178481B2
公开(公告)日：2019-01-08
申请号：US15323024
申请日：2014-11-05
申请人： GOERTEK INC.
发明人： Minghui Shao , Jianbin Yang
IPC分类号： H04R9/00 , H04R9/06 , H04R7/12 , H04R7/18 , H04R9/02
摘要： A sound producing device comprising: a speaker unit and a housing, wherein the speaker unit comprises a vibration system which comprises a vibrating diaphragm and a voice coil; a front and rear acoustic cavities are formed between the vibrating diaphragm and the housing, respectively; the side surface of the housing is provided with a sound hole communicating with the front acoustic cavity; the vibrating diaphragm comprises a dome portion and a suspension ring portion; the side of the suspension ring portion connected to the dome portion is provided with a dome connecting portion, and the side of the suspension ring portion combined with the housing is provided with a housing bonding portion; and a height difference exists between the housing bonding portion and the dome connecting portion. The present invention increases the size of the sound hole and the speaker unit, thus improving the acoustic performance of a product.

14. 发明授权

US10149078B2 Capacitive sensing of a moving-coil structure with an inset plate 有权
公开(公告)号：US10149078B2
公开(公告)日：2018-12-04
申请号：US15398483
申请日：2017-01-04
申请人： Apple Inc.
发明人： Roderick B. Hogan , Anthony P. Grazian , Scott P. Porter , Christopher Wilk , Hongdan Tao
IPC分类号： H04R29/00 , H04R9/04 , H04R9/06 , H04R7/12 , H04R31/00 , H04R9/00 , H04R1/02 , H04R1/06
摘要： A speaker assembly including a sound radiating surface suspended over a magnet assembly, a suspension member for suspending the sound radiating surface over the magnet assembly, a voice coil extending from a bottom side of the sound radiating surface, and a capacitive displacement sensor for sensing a movement of the sound radiating surface. The capacitive displacement sensor including a first conductive plate fixedly positioned over the sound radiating surface and a second conductive plate coupled to the sound radiating surface and vertically aligned with the first conductive plate, and wherein the second conductive plate is confined to an area that is entirely radially inward of the voice coil.

15. 发明授权

US10050499B2 Method of manufacturing voice coil 有权
公开(公告)号：US10050499B2
公开(公告)日：2018-08-14
申请号：US14940255
申请日：2015-11-13
申请人： STS Semiconductor & Telecommunications Co., Ltd.
发明人： Jai Kyoung Choi , Eun Dong Kim , Hyun Hak Jung , Hyeong Min Kim , Jong Hwi Jung , Su Kyung Lim
IPC分类号： H02K15/04 , C23F1/00 , H02K41/035 , H01F41/04 , H02K3/26 , H04R9/00 , H04R31/00
摘要： Provided is a method of manufacturing a voice coil, and more particularly, a method of manufacturing a voice coil in which a coil pattern is formed on a wafer level package. The method includes (a) forming a first coil pattern including a first area in which a first seed metal layer is exposed upward, a second area in which a first passivation layer for forming a via hole in the first area is formed, and a third area in which a first photoresist layer is formed in a portion of the first area and the second area on an upper surface of a wafer, (b) filling an inside of the via hole formed in the first coil pattern with a conductive material and forming first coil windings, and (c) removing the first photoresist layer formed in the third area.

16. 发明授权

US10034094B2 Low-profile loudspeaker 有权
公开(公告)号：US10034094B2
公开(公告)日：2018-07-24
申请号：US15267596
申请日：2016-09-16
申请人： GP Acoustics (UK) Limited
发明人： George Perkins
IPC分类号： H04R9/00 , H04R9/04 , H04R9/06 , H04R7/02 , H04R7/14
摘要： The present invention relates to a loudspeaker which can be arranged to minimise its overall depth while also increasing the breakup frequency and reducing potential rocking vibrations. Accordingly, the present invention is directed to a loudspeaker, comprising a magnet structure, and a voice coil lying within a magnetic field established by the magnet structure and responsive to electrical signals to undergo excursions from a rest position along an axis of motion; a driven body, connected to the voice coil and moveable to project acoustic waves from a front of the loudspeaker; and a suspension for providing a restoring force to the driven body towards the rest position, the suspension extending from an attachment point on the driven body to an attachment point on a fixed portion of the loudspeaker; wherein the driven body comprises a diaphragm and a support structure extending rearwardly from a connection point with the voice coil to a connection point with the suspension located rearward of the frontal part of the magnet structure.

17. 发明授权

US09674595B2 Speaker and manufacturing method thereof 有权
公开(公告)号：US09674595B2
公开(公告)日：2017-06-06
申请号：US14778576
申请日：2014-03-12
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Masamichi Ara , Kenichi Ajiki , Toshinori Yamaji , Keiji Ishikawa
IPC分类号： H04R9/00 , H04R1/06 , H04R31/00 , H04R9/06 , H04R7/18 , H04R9/02 , H04R9/04
CPC分类号： H04R1/06 , H04R7/18 , H04R9/025 , H04R9/045 , H04R9/06 , H04R31/00 , H04R31/006
摘要： A loudspeaker includes a frame, a magnetic circuit, a magnetic gap, a diaphragm, a voice coil, a connector portion, and a lead wire. The connector portion is provided at the frame, and includes a terminal. The lead wire connects between the terminal and the voice coil, and has a connection portion connected to the terminal. Then, a first holder that holds the lead wire is formed at the connector portion. The lead wire is held between the terminal and the first holder as being clamped.

18. 发明授权

US09185493B2 Method and apparatus for computing metric values for loudspeaker protection 有权
标题翻译：用于计算扬声器保护度量值的方法和装置
公开(公告)号：US09185493B2
公开(公告)日：2015-11-10
申请号：US13654671
申请日：2012-10-18
申请人： Dialog Semiconductor B.V.
发明人： Wessel Lubberhuizen , Marinus Wilhelmus Kruiskamp
IPC分类号： H04R9/00 , H04R9/02 , H04R3/00 , H04R29/00 , H03F1/52 , G01R1/00 , G01R19/00 , G01R19/06 , G01R19/165
CPC分类号： H04R9/022 , G01R1/00 , G01R19/00 , G01R19/06 , G01R19/165 , G01R19/16528 , H03F1/52 , H04R3/007 , H04R29/001 , H04R29/003
摘要： Systems and methods thereof for obtaining metrics and an accurate threshold to prevent loudspeaker overheating, based on autocorrelation and cross-correlation of band-pass filtered current and voltage measurements are disclosed. The methods invented are based on instantaneous voltage and current measurements. The invention does not require a DC or pilot signal to be added to the audio signal in order to do perform the measurement, and it is not disturbed by capacitive or inductive components in the complex impedance of the voice coil.
摘要翻译：公开了基于带通滤波电流和电压测量的自相关和互相关以获得度量的准确阈值以及防止扬声器过热的系统及其方法。所发明的方法基于瞬时电压和电流测量。本发明不需要将DC或导频信号添加到音频信号中，以便执行测量，并且其不会被音圈的复阻抗中的电容或电感分量干扰。

19. 发明授权

US08947980B2 Micro-geophone 有权
公开(公告)号：US08947980B2
公开(公告)日：2015-02-03
申请号：US13553597
申请日：2012-07-19
申请人： Daniel M. Woo
发明人： Daniel M. Woo
IPC分类号： H04R9/00 , G01V1/38 , G01V1/18 , H04R9/04
CPC分类号： G01V1/183 , H04R9/04 , H04R9/043
摘要： A micro geophone having pole pieces do not extend out around the sides of the magnet, thereby allowing a reduced geophone diameter for a given magnet diameter. The pole pieces are adhesively bonded to the magnet using an adhesive, which may be made suitably electrically conductive by silver or nickel fillers or non-conductive by mica fillers such as borosilicate glass micro-spheres. Axial space is economized by eliminating traditional spider retaining rings. The spider springs are seated directly against the coil form and secured by adhesive fillets disposed on the outward-facing spring circumferences. The spider springs include circumferential notches to receive adhesive. A two-piece bimetallic coil form of aluminum and a heavier material, joined by adhesive, is provided. Headers are affixed to the housing within the seats by adhesive. A straight or rounded chamfer at each of the geophone ends allows the overall geophone dimensions to be maximized.

20. 发明授权

US08666104B2 Lighting and audio communication system 有权
标题翻译：照明和音频通信系统
公开(公告)号：US08666104B2
公开(公告)日：2014-03-04
申请号：US13623846
申请日：2012-09-20
申请人： Mitek Corp., Inc.
发明人： Loyd Ivey , Bruce Marlin , Alan Cross , Brad Diedrich
IPC分类号： H04R1/02 , H04R9/06 , F21V33/00 , H04R1/00 , H04R9/00
CPC分类号： H04R1/028 , F21V33/0052 , F21V33/0076 , F21Y2115/10 , H04R1/30 , H04R1/345
摘要： A lighting and communication system with a horn enclosure for recessed ceiling panel or wall mounting, including a speaker with a horn expansion area to direct sound waves from the speaker to a horn enclosure front, at least one light enclosure located within the horn enclosure, the light enclosure defining a light cavity which is separated from said horn expansion area, with a light source inside the light cavity. The light source can be an LED array, which is capable of displaying text, colors or patterns in response to a control system signal.
摘要翻译：一种照明和通信系统，其具有用于凹陷天花板或墙壁安装的喇叭外壳，包括具有喇叭扩展区域的扬声器，以将来自扬声器的声波引导到喇叭外壳前面，至少一个位于喇叭外壳内的灯罩，限定了与所述喇叭扩展区分离的光腔的光罩，在光腔内部具有光源。光源可以是LED阵列，其能够响应于控制系统信号显示文本，颜色或图案。

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