Apertures In Surface Patents (Class 381/429)
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Patent number: 9407004Abstract: An antenna circuit board assembly comprises a substrate having a ground plane comprised of a conductive material; a first antenna element mounted to the substrate and coupled to the ground plane; a second antenna element mounted to the substrate and coupled to the ground plane; a third antenna element mounted to the substrate and coupled to the ground plane; and a plurality of features etched into the ground plane, each of the plurality of features having a respective length and a respective width. The respective length and the respective width of each of the plurality of features are selected to increase isolation between the first, second, and third antenna elements.Type: GrantFiled: July 25, 2012Date of Patent: August 2, 2016Assignee: Tyco Electronics CorporationInventors: Bruce Foster Bishop, Luis Cardenas
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Patent number: 8929584Abstract: Measures for dynamically regulating the microphone sensitivity of a MEMS microphone component at low frequencies by way of variable roll-off behavior are proposed. The micromechanical microphone structure of the component, which is implemented in a layer structure on a semiconductor substrate, encompasses an acoustically active diaphragm having leakage openings which spans a sound opening in the substrate back side, and a stationary acoustically permeable counterelement having through openings which is disposed in the layer structure above/below the diaphragm. The component furthermore encompasses a capacitor assemblage for signal sensing, having at least one deflectable electrode on the diaphragm and at least one stationary electrode on the counterelement, and an arrangement for implementing a relative motion between the diaphragm and counterelement parallel to the layer planes.Type: GrantFiled: November 4, 2013Date of Patent: January 6, 2015Assignee: Robert Bosch GmbHInventors: Jochen Zoellin, Christoph Schelling
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Patent number: 8750554Abstract: A speaker diaphragm (2), and plural dimples (16) which are disposed radially from a center side toward the outside of the speaker diaphragm (2) and which have arch structures formed to have a concave-like shapes so as to disperse a stress are provided, whereby while weight saving is realized in terms of the speaker diaphragm (2) by the plural dimples (16) formed to have the concave-like shapes, high rigidity is maintained by the arch structures of the dimples concerned, and a maximum sound pressure can be increased along with the weight saving concerned.Type: GrantFiled: October 15, 2010Date of Patent: June 10, 2014Assignee: Sony CorporationInventor: Takao Sakamoto
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Patent number: 8577076Abstract: A speaker device includes: an acoustic diaphragm having a given shape and made of a material having physical anisotropy; and an excitation means attached to the acoustic diaphragm for exciting vibration components in consideration of a direction corresponding to the physical anisotropy.Type: GrantFiled: June 27, 2011Date of Patent: November 5, 2013Assignee: Sony CorporationInventors: Yoshio Ohashi, Nobukazu Suzuki
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Patent number: 8379907Abstract: An electroacoustic transducer includes a frame defining a hollow space, and an elastic member mounted on the frame. The elastic member includes a circular plane lamina and a plurality of elastic arms extending outwardly from a circumference of the circular plane lamina. A diaphragm includes a vibrating film mounted with the circular plane lamina, and an edge damper integrally formed with an outer periphery of the vibrating film. A voice coil is attached below the vibrating film and electrically connected to the circular plane lamina. At least two through holes are formed between an outer periphery of the circular plane lamina and an inner side of the voice coil for balancing the air pressure of the air below the diaphragm.Type: GrantFiled: January 28, 2011Date of Patent: February 19, 2013Assignees: AAC Acoustic Technologies (Shenzhen) Co., Ltd., American Audio Components Inc.Inventor: Xu-Dong Yan
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Patent number: 8311264Abstract: An ultra-thin speaker includes a metal upper casing, and a metal lower casing corresponding to the metal upper casing and capable of covering a vibrating membrane, a support frame, a magnet and a yoke between two corresponding internal surfaces of the metal upper and lower casings and forming a contact surface with the yoke, such that after the yoke conducts heat of a heat source to the metal lower casing, the heat is conducted to the metal upper casing through a connection and a contact of the metal upper and lower casings to increase a heat dissipating area, so as to overcome the heat dissipation problem and minimize the overall thickness of the speaker.Type: GrantFiled: April 23, 2010Date of Patent: November 13, 2012Assignee: Fortune Grand Technology Inc.Inventor: Ping-Yu Lee
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Patent number: 8215445Abstract: Provided is an electroacoustic transducer having a diaphragm (10). The diaphragm (10) has a first and a second region (20, 30), wherein the hardness, stiffness or compliance of the first region (20) differs from the second region (30).Type: GrantFiled: December 10, 2007Date of Patent: July 10, 2012Assignee: Sennheiser electronic GmbH & Co. KGInventors: Jens Wildhagen, Jan Peter Kuhtz, Axel Grell
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Patent number: 8181736Abstract: A phase plugs or acoustic lens improves the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. Configuration of the acoustic lens or phase plug may include both symmetrical and asymmetrical features to provide an improved frequency response and directivity. The improved loudspeaker may provide improved an improved listing location, for example, in a vehicle.Type: GrantFiled: August 14, 2009Date of Patent: May 22, 2012Assignee: Harman International Industries, IncorporatedInventors: Brian Sterling, John Sheerin, Douglas Hogue, Peter Premo
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Patent number: 8180096Abstract: A loudspeaker includes a first bar magnet having a longitudinal direction, a second bar magnet having a longitudinal direction parallel to the longitudinal direction of the first bar magnet, a third bar magnet forming a second magnetic gap between the first bar magnet and the third bar magnet, a diaphragm arranged to vibrate in a vibrating direction, a case accommodating the first bar magnet, the second bar magnet, the third bar magnet, and the diaphragm , and the voice coil fixed to the diaphragm and located in the first and second magnetic gaps. The second bar magnet has a longitudinal direction parallel to the longitudinal direction of the first bar magnet, and has both ends in the longitudinal direction. The third bar magnet has a longitudinal direction parallel to the longitudinal direction of the first bar magnet, and has both ends in the longitudinal direction. The diaphragm is located between the first and second bar magnets and between the first and third bar magnents.Type: GrantFiled: September 28, 2007Date of Patent: May 15, 2012Assignee: Panasonic CorporationInventors: Koji Sano, Kazuki Honda, Satoshi Itoh, Masashi Kawabe
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Patent number: 8139784Abstract: A compound loudspeaker comprises an acoustically radiating first diaphragm and an acoustically radiating second diaphragm. The first and second diaphragms are substantially coaxial and at least part of the second diaphragm is situated radially outwards of the first diaphragm. There is a gap situated between the first and second diaphragms, and a seal is provided in the gap, thereby preventing or hindering the passage of air through the gap. By providing the seal, the invention solves the problem of audible turbulent airflow through the gap.Type: GrantFiled: June 21, 2006Date of Patent: March 20, 2012Assignee: GP Acoustics (UK) LimitedInventor: Jack Anthony Oclee-Brown
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Patent number: 8041071Abstract: A diaphragm and a speaker unit which can prevent generation of abnormal sound by suppressing rolling phenomenon. The speaker unit has a diaphragm. The diaphragm includes a portion for supporting a voice coil, and a sound emitting portion formed continuously to one end thereof. The voice coil supporting portion has a shape extending reversely to the sound emitting direction. The sound emitting portion includes a step portion having a surface substantially perpendicular to the sound emitting direction, and a bent portion having a cross-section bent toward the inside of the voice coil supporting portion from one end of the step portion.Type: GrantFiled: December 27, 2006Date of Patent: October 18, 2011Assignees: Pioneer Corporation, Tohoku Pioneer CorporationInventors: Akihiko Furuto, Sinsuke Konuma
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Patent number: 7970815Abstract: A reproducing means for performing reproduction processing on digital data which is read out from a predetermined recording medium recording the digital data, a manipulating means for making an instruction of reproducing the digital data inserted in the recording medium, a control means for reading the digital data from the recording medium in accordance with the reproduction instruction input with the manipulating means and sending it to the reproducing means, and for controlling the reproducing means to perform reproduction processing on the digital data, and a cylindrical case for containing the reproducing means and the control means are provided, and wherein the manipulating means is provided on one end side on one plane in the longitudinal direction of the cylindrical case. Thereby the user can manipulate the manipulating means without taking out a portable recording and/or reproducing device from a bag or a pocket, thus making it possible to remarkably improve its manipulation.Type: GrantFiled: November 14, 2000Date of Patent: June 28, 2011Assignee: Sony CorporationInventors: Shuichi Miyazaki, Yoshitaka Ukita, Fumihiko Yoshii, Shinichi Obata, Masahiko Fujiyoshi, Masayuki Chiba
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Patent number: 7839052Abstract: A sensing membrane applied to a micro-electro-mechanical system (MEMS) device includes a body, a stress releasing structure and a connecting portion. The stress releasing structure for releasing a membrane residual stress surrounds the body. The stress releasing structure has several first perforations and several second perforations. The first perforations are located between the body and the second perforations. The connecting portion connects the stress releasing structure and a substrate of the MEMS device.Type: GrantFiled: June 3, 2008Date of Patent: November 23, 2010Assignee: Industrial Technology Research InstituteInventors: Chia-Yu Wu, Jien-Ming Chen
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Patent number: 7548632Abstract: An edge (29) for supporting a diaphragm assembly (100) with respect to a frame (26) is bonded to the frame (26) along the outer periphery thereof and joined to a diaphragm (27) in a position more peripherally inward than a voice coil (28) along the inner periphery thereof. The edge (29) partly overlaps diaphragm (27). This structure allows downsizing of the speaker, without reducing the sizes of a permanent magnet (21) and the edge (29).Type: GrantFiled: March 17, 2005Date of Patent: June 16, 2009Assignee: Panasonic CorporationInventors: Takanori Fukuyama, Tomoyasu Takase, Koji Sano, Hiroshi Yano, Masanori Nakano, Shigeru Tomoeda, Kazuki Honda, Kazuya Yamasaki, Kazutaka Kubo, Takeshi Shimokawatoko, Mitsutaka Enomoto, Masahide Sumiyama
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Patent number: 7515728Abstract: A speaker apparatus including: a first diaphragm; a second diaphragm arranged coaxial with the first diaphragm along a driving direction; a frame having diaphragm supporting portions; and a voice-coil bobbin, wherein outer circumferential portions of the first diaphragm and the second diaphragm are fixed to the diaphragm supporting portions respectively, inner circumferential portions of the first diaphragm and the second diaphragm are connected together and fixed to the voice-coil bobbin so as to make a sealed space between the first diaphragm, the second diaphragm and the frame, and the voice-coil bobbin is supported by springiness of a gas contained in the sealed space.Type: GrantFiled: December 16, 2004Date of Patent: April 7, 2009Assignees: Pioneer Corporation, Tohoku Pioneer CorporationInventors: Hiroyuki Kobayashi, Kyoichi Matsuda
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Patent number: 7418109Abstract: A diaphragm (1) of a light sound converter which has a high performance, is suitable for mass-production and has a slit (1s) formed therein. A light emitting element and a light receiving element are disposed at positions opposed to a reflective part (1a) of the diaphragm (1) having a pressure receiving surface part (1d) and the reflective part (1a), and light is radiated from the light emitting element to the reflective part (1a) of the diaphragm (1) and the reflected light from the reflective part (1a) is received by the light receiving element, whereby the position of the diaphragm (1) can be detected.Type: GrantFiled: June 13, 2002Date of Patent: August 26, 2008Assignee: Kabushiki Kaisha KenwoodInventors: Yoshio Sakamoto, Takahiro Imai
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Patent number: 7386145Abstract: A liquefied paper material is used as raw materials. A paper frame member 1 supporting a vibrating plate is paper-skimmed and formed. On paper-skimming and forming, a central hole for use in voice coils, air-release hole 1a releasing air pressure in a rear of the vibrating plate to outside due to vibration of the vibrating plate. A loudspeaker system is manufactured using the paper frame member 1.Type: GrantFiled: February 15, 2005Date of Patent: June 10, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Teruho Yamada, Masahiko Kawahara, Yukio Sugimoto, Seiji Mori, Toshikazu Iwasaki
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Patent number: 7120263Abstract: A bending wave panel-form acoustic radiator formed from sheet material to define an acoustically active area and having at least one integral stiffening member in the form of a corrugation extending out of the plane of the sheet and at least partially across the acoustically active area of the radiator, which stiffening member is of substantially U-shaped cross section. Also disclosed is a method of making a bending wave panel-form acoustic radiator, comprising forming a sheet into a panel having at least one integral corrugation member extending out of the plane of the sheet and at least partly across the sheet and of substantially U-shape cross-section, to stiffen the sheet to have a desired ability to support and propagate bending waves.Type: GrantFiled: March 21, 2002Date of Patent: October 10, 2006Assignee: New Transducers LimitedInventors: Henry Azima, Martin Colloms, Graham Bank, Charles Bream, Julian Fordham
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Patent number: 7103196Abstract: A receiver, such as for use in a hearing aid, is disclosed. The receiver comprises a housing and a diaphragm assembly disposed within the housing. The diaphragm assembly acoustically divides the housing into a front volume and a back volume. The diaphragm assembly comprises a paddle having a perimeter, a flexible annulus connected to the paddle, and a diaphragm support, wherein the diaphragm support secures the perimeter of the annulus to the housing. The receiver further comprises a plurality of apertures in the diaphragm assembly, wherein the plurality of apertures provides an acoustic distortion of no greater than 2% THD.Type: GrantFiled: March 12, 2002Date of Patent: September 5, 2006Assignee: Knowles Electronics, LLC.Inventor: Daniel Max Warren
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Patent number: 6957714Abstract: The speaker has a diaphragm main body 30 supported resiliently on a frame 23 via an edge portion 31 around its outer circumference, and the groove ribs 35 integrally formed in the edge portion 31, wherein a regulation member 37 for partially improving a flexural strength of the edge portion 31 is provided on a part of the front or back face of the edge portion 31.Type: GrantFiled: July 14, 2003Date of Patent: October 25, 2005Assignees: Pioneer Corporation, Tohoku Pioneer CorporationInventors: Osamu Takahashi, Ryo Ishiyama
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Patent number: 6920230Abstract: An electromagnetic transducer includes: a first diaphragm; a second diaphragm provided in a central portion of the first diaphragm, the second diaphragm comprising a magnetic material having a first opening in a central portion thereof; a yoke disposed so as to oppose the first diaphragm; a center pole disposed between the yoke and the first diaphragm, wherein the center pole has a shape which allows insertion into the first opening; a coil disposed so as to surround the center pole; and a first magnet disposed so as to surround the coil.Type: GrantFiled: April 16, 2001Date of Patent: July 19, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Sawako Usuki, Shuji Saiki
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Publication number: 20040239193Abstract: The present invention provides an electromagnetic drive motor assembly (EDMA) that has an inner flux return assembly formed from an upper pole piece and a lower pole piece oppositely disposed relative to each other along the center of the EDMA. An annularly positioned conductive ring (or flux stabilization ring) encircles the inner flux return assembly, concentrically in contact with the outside of the inner flux return assembly. Along the exterior side of the flux return pieces, is a magnet that is between a top plate and a bottom plate. Each plate contacts with the magnet to form a magnetically conductive system. A magnetic gap is formed in between the inner flux return assembly and the top and bottom plates. Disposed within the magnetic gap is a dual coil wound around a cylinder. The dual coil includes a first coil portion and a second coil portion. To minimize the modulation, the top and bottom plates may be saturated and plate tips may be provided near the magnetic gap.Type: ApplicationFiled: June 29, 2004Publication date: December 2, 2004Inventors: Jerry Moro, Douglas J. Button
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Publication number: 20040228501Abstract: A sound reproducing apparatus includes a display unit, a board 22, a diaphragm panel 23, and an electroacoustic transducer 26. The display unit displays an image on a display surface. The board 22 is composed of a material which transmits visible light and arranged such that a first space is provided between the display surface of the display unit and the board 22. The diaphragm panel 23 is composed of a material which transmits visible light and arranged on the opposite side of the board 22 from the display unit such that a second space is provided between the board 22 and the diaphragm panel 23. The electroacoustic transducer 26 emits sound into the second space.Type: ApplicationFiled: May 3, 2004Publication date: November 18, 2004Inventors: Shuji Saiki, Sawako Usuki
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Patent number: 6774510Abstract: The present invention provides an electromagnetic drive motor assembly (EDMA) that has an inner flux return assembly formed from an upper pole piece and a lower pole piece oppositely disposed relative to each other along the center of the EDMA. An annularly positioned conductive ring (or flux stabilization ring) encircles the inner flux return assembly, concentrically in contact with the outside of the inner flux return assembly. Along the exterior side of the flux return pieces, is a magnet that is between a top plate and a bottom plate. Each plate contacts with the magnet to form a magnetically conductive system. A magnetic gap is formed in between the inner flux return assembly and the top and bottom plates. Disposed within the magnetic gap is a dual coil wound around a cylinder. The dual coil includes a first coil portion and a second coil portion. To minimize the modulation, the top and bottom plates may be saturated and plate tips may be provided near the magnetic gap.Type: GrantFiled: October 25, 2000Date of Patent: August 10, 2004Assignee: Harman International Industries, Inc.Inventors: Jerry Moro, Douglas J. Button
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Patent number: 6661903Abstract: A loudspeaker is provided, which includes a frame, a voice coil bobbin, and a diaphragm connected to the frame and the voice coil bobbin, wherein the diaphragm is connected to the voice coil bobbin in such a manner that a cone angle between the diaphragm and the voice coil bobbin becomes small enough to obtain a preferable treble reproduction threshold frequency, the diaphragm ha a first connected portion connected to the voice coil bobbin and a second connected portion connected to the frame, and the diaphragm has an arch-shaped cross section so as to have a top portion formed outward from both the first connected portion and the second connected portion.Type: GrantFiled: April 28, 1999Date of Patent: December 9, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuaki Tamura, Shoji Tanaka
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Patent number: 6626263Abstract: A passive radiator and method is disclosed which improves frequency response linearity and greatly reduces the possibility that wobble of a passive radiator which will occur without the displacement limitations of a spider containing speaker structure. Two substantially flat surfaced speaker diaphragms are tied together and supported by two sets of surrounds oriented in opposite directions to reduce the non-linearity in the surround spring rate and improve low frequency sound generation. A vent (pressure relief) system is provided to improve the frequency response and range of motion of the passive speaker system. A progressive surround roll arrangement provides for improved sound quality by utilizing localized position based extension while maintaining the range of maximum travel during resonance.Type: GrantFiled: September 6, 2002Date of Patent: September 30, 2003Inventor: Joseph Yaacoub Sahyoun
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Publication number: 20020136425Abstract: A receiver, such as for use in a hearing aid, is disclosed. The receiver comprises a housing and a diaphragm assembly disposed within the housing. The diaphragm assembly acoustically divides the housing into a front volume and a back volume. The diaphragm assembly comprises a paddle having a perimeter, a flexible annulus connected to the paddle, and a diaphragm support, wherein the diaphragm support secures the perimeter of the annulus to the housing. The receiver further comprises a plurality of apertures in the diaphragm assembly, wherein the plurality of apertures provides an acoustic distortion of no greater than 2% THD.Type: ApplicationFiled: March 12, 2002Publication date: September 26, 2002Inventor: Daniel Max Warren
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Patent number: 6377145Abstract: A vibration actuator includes an electromechanical transducer having a magnetic circuit (1-4) and a driving coil (5), a support frame (9), and a damper (270) elastically supporting the magnetic circuit onto the support frame to flexibly damp the vibration of the magnetic circuit when a driving AC current is supplied to the coil (5). The damper (270) comprises inner and outer ring portions (271, 272) and a plurality of spiral spring portions (273) determined by a plurality of spiral slits (274, 275) formed in the damper. In order to reduce the spiral spring portion determined by the adjacent two spiral slits in its compliance, each of the spiral spring portions has an effective spring length determined by an effective angle (&thgr;) which is determined as an angle (by angular degree) from an inner end of the inner spiral slit to an outer end of the outer spiral slit defining each respective spiral spring portion around a center of the damper. The effective angle is 55 angular degree or more.Type: GrantFiled: October 19, 2000Date of Patent: April 23, 2002Assignee: Tokin CorporationInventor: Toru Kumagai
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Patent number: 6219425Abstract: A loudspeaker is superior in space saving ability for enabling down-sizing of a device, to which the loudspeaker is employed, and has frequency characteristics easily designed and adjusted. The loudspeaker includes a vibration plate formed with a plurality of heat radiating through openings, and a vibrating portion responsive to an input electrical signal and driving the vibration plate for generating an acoustic vibration.Type: GrantFiled: January 27, 1999Date of Patent: April 17, 2001Assignee: NEC CorporationInventor: Shoji Watanabe
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Patent number: 6031926Abstract: A panel-form loudspeaker has two distributed mode acoustic radiators coupled by a resilient suspension. Each radiator has its own transducer.Type: GrantFiled: July 8, 1998Date of Patent: February 29, 2000Assignee: New Transducers LimitedInventors: Henry Azima, Martin Colloms, Neil John Harris