Electromagnetic (e.g., Dyynamic) Patents (Class 381/396)
  • Patent number: 10708692
    Abstract: The present disclosure provides a vibration diaphragm. The vibration diaphragm includes a vibration part; a suspension extending from and surrounding the vibration part; and a pattern module part formed on the vibration part. The pattern module part includes a first protrusion, a second protrusion bounded by the first protrusion, and a gap formed between the first protrusion and the second protrusion. By virtue of the configuration of the pattern module part, the solution described by the present embodiment increases the surface area of the vibration part, and widens the bandwidth of the vibration diaphragm, and further improves the acoustic performance of the diaphragm.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: July 7, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventor: Xiaojiang Gu
  • Patent number: 10694273
    Abstract: The technology disclosed herein enables retention of a speaker on a mounting surface using a clip and a flange. In a particular embodiment, an apparatus includes a speaker comprising a substantially elliptic speaker frame. The apparatus further includes a mounting surface comprising a substantially cylindrical flange into which the speaker frame is positioned. Also, the apparatus includes a substantially elliptic clip positioned in the flange between the speaker frame and a retaining rim of the flange.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: June 23, 2020
    Assignee: Avaya, Inc.
    Inventors: William James Horne, Philip Lo
  • Patent number: 10587957
    Abstract: An apparatus includes a surface arranged to be mechanically displaced, first permanent magnet coupled with the surface, at least one supporting member for supporting the surface, base, second permanent magnet, coil coupled with the second magnet, and signal port electrically coupled with the coil. An electrical signal is configured to travel between the signal port and the coil. The electrical signal in the coil is proportional to mechanic displacement of the surface when a force equilibrium state of the surface is broken by the electrical signal in the coil or the mechanic displacement of the surface from a position of the force equilibrium state. The coil is arranged at least partially between the first magnet and the second magnet or around one of the first magnet, the second magnet. Either the same or different polarities of the first and second magnets are arranged to directly face each other at a distance.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: March 10, 2020
    Assignee: PS AUDIO DESIGN OY
    Inventor: Vesa Kajanus
  • Patent number: 10555070
    Abstract: The present invention is related to a hybrid speaker comprising a tweeter and a dynamic woofer, wherein the tweeter has upper and lower coils arranged opposite to each other, an open-type high-tone vibration plate formed with a closed-type center hole at its center and located between the upper and lower coils, and one or more permanent magnets arranged outside the upper and lower coils, and wherein the woofer is coaxially coupled to a lower side of the tweeter so as to let low tone sound generated from a low tone vibration plate of the woofer pass through the hole of the high tone vibration plate of the tweeter.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 4, 2020
    Assignee: EARBRIDGE INC.
    Inventor: Okjeong Yoo
  • Patent number: 10441973
    Abstract: A vibration device, including a shell, a cover plate, a vibrator, a stator and an elastic member, the cover plate is matched with the shell to form accommodating space, the vibrator, the stator and the elastic member are accommodated in the accommodating space, one of the vibrator and the stator includes a magnetic circuit unit while the other one includes a coil. the elastic member includes a first connecting portion fixedly connected with the vibrator, a pair of elastic portions bending and extending from two opposite ends of the first connecting portion, and a pair of second connecting portions extending from a tail end of each elastic portion in the direction facing each other, and the pair of second connecting portions is fixedly connected with the shell to suspend the vibrator in the accommodating space.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: October 15, 2019
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Xiang Xu, Jinquan Huang, Hongfu Xu, Fanghua Ling
  • Patent number: 10440482
    Abstract: A MEMS microphone may include a backplate comprising first and second electrodes electrically isolated from one another and mechanically coupled to the backplate in a fixed relationship relative to the backplate and a diaphragm configured to displace relative to the backplate as a function of sound pressure incident upon the diaphragm, the diaphragm comprising third and fourth electrodes electrically isolated from one another and mechanically coupled to the diaphragm in a fixed relationship relative to the diaphragm such that the third and fourth electrodes displace relative to the backplate as a function of sound pressure incident upon the diaphragm. The first and third electrodes may form a first capacitor and the second and fourth electrodes may form a second capacitor, the capacitance of each which may be a function of the displacement of the diaphragm, and each of which may be biased by an alternating-current voltage waveform.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: October 8, 2019
    Assignee: Cirrus Logic, Inc.
    Inventor: Axel Thomsen
  • Patent number: 10425740
    Abstract: The present invention relates to an apparatus for outputting vibration, and an exemplary embodiment of the present invention may provide an apparatus for outputting vibration, the apparatus including: a magnetic circuit which generates vibration; a yoke which is in contact with an upper surface of the magnetic circuit and has a raised spot with different heights in a height direction in at least one of the lateral surfaces of the yoke such that one or more spaces are formed in an upper surface of the yoke; and an elastic body which is in contact with at least a part of the upper surface of the yoke, and vibratorily moves in the one or more spaces, in which the elastic body is formed of a first elastic unit and a second elastic unit, and the first elastic unit and the second elastic unit are integrally molded.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: September 24, 2019
    Assignee: Yeil Electronics Co., Ltd.
    Inventors: Yoon Kyu Kang, Jae Yong Kim
  • Patent number: 10405101
    Abstract: A MEMS loudspeaker for generating sound waves in the audible wavelength spectrum includes a carrier substrate with a substrate cavity with two substrate openings formed on two opposite sides of the carrier substrate, and a diaphragm anchored in the substrate. An actuator structure is arranged in the region of one of the two substrate openings and configured to vibrate the diaphragm to generate sound waves. An intermediate cavity is formed in a space between the diaphragm and the actuator structure. A coupling element is disposed in the intermediate cavity and connects the actuator structure to the diaphragm and can vibrate with respect to the carrier substrate.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: September 3, 2019
    Assignee: Usound GmbH
    Inventors: Andrea Rusconi Clerici Beltrami, Ferruccio Bottoni
  • Patent number: 10390124
    Abstract: The present disclosure provides a transducer device including a driver and an audio system. The driver includes a diaphragm, a magnet, and a voice coil. The diaphragm vibrates in response to an external force. The magnet provides a magnetic field. The voice coil unit generates an inducing voltage by inducing a variation of the magnetic field in response to a vibration of the diaphragm. The audio system is coupled to the voice coil and includes an audio playing circuit and a wake-up circuit. The audio playing circuit outputs an audio signal to the voice coil unit. The wake-up circuit receives the inducing voltage and boots up the transducer device when the inducing voltage satisfies a predetermined condition.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: August 20, 2019
    Assignee: MERRY ELECTRONICS(SHENZHEN) CO., LTD.
    Inventor: Po-Chang Lin
  • Patent number: 10375480
    Abstract: A loudspeaker unit includes: a housing (100), a magnetic assembly (300) disposed in the housing (100), a diaphragm (220) disposed on the housing (100), a first voice coil (210a) connected to the diaphragm (220), and the magnetic assembly (300) is connected to the housing (100) by an elastic element (400). The magnetic assembly (300) vibrates along with the elastic element (300) with respect to the housing (100) when the elastic element (400) vibrates.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: August 6, 2019
    Assignee: 1MORE INC.
    Inventors: Kuanhong Hsieh, Bocheng You, Shihchia Chiu
  • Patent number: 10368151
    Abstract: The present disclosure provides an exterior cover of an electronic device including a cover that protects a display of the electronic device. The cover may include one or more speakers. The cover may be folded one or more times to support the electronic device to be inclined and the speaker may include any one of a film speaker, a vibration speaker, a piezoelectric speaker, and a thin micro speaker. In addition, the exterior cover may include a vibration plate that is arranged thereon and any electronic component may also be arranged on the exterior cover as long as the electronic component is slim.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 30, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Youngbae Park, Byounghee Lee, Hochul Hwang
  • Patent number: 10250988
    Abstract: A speaker in the present disclosure includes a magnetic circuit having a magnetic gap, a frame fixed to the magnetic circuit, a voice coil disposed in the magnetic gap, a cylindrical bobbin around which the voice coil is formed, and a diaphragm configured so that the inner circumferential side of the diaphragm is fixed to the bobbin and the outer edge of the diaphragm is supported by the frame with an edge member intervening therebetween. The diaphragm has an elliptical shape that is non-axisymmetric with respect to a center axis passing through the center of the bobbin. The diaphragm is formed by vacuum molding of a sheet-like raw material (thermoplastic CFRP sheet) in which long-fiber fillers are oriented in one direction in a thermoplastic resin. The orientation of the long-fiber fillers is set so as to match the short-axis direction of the diaphragm.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: April 2, 2019
    Assignee: ALPINE ELECTRONICS, INC.
    Inventors: Kei Tanabe, Masami Anzai, Yu Yamagami, Takahiro Aoki, Yusuke Yoshida
  • Patent number: 10250989
    Abstract: A micro sound generating device is provided in the present disclosure. The micro sound generating device includes a vibrating system, a magnetic circuit system, and a frame for receiving and fixing the vibrating system and the magnetic circuit system, the vibrating system comprises a diaphragm, a voice coil driving the diaphragm to vibrate, and a support connected with the voice coil, the diaphragm and the support are located on two opposite sides of the voice coil, respectively, and the support and the frame are formed integrally. At the same time, the present disclosure also provides a method for assembling the micro sound generating device as described above.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: April 2, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Bo Xiao, Ronglin Linghu
  • Patent number: 10212521
    Abstract: A method including providing a magnet pot, where the magnet pot comprises a bottom portion and at least one projection extending up from the bottom portion forming a magnet location area, where the at least one projection has first and second portions located on opposite sides of the magnet pot, and where the first and second portions have outer sides with a first distance therebetween; and connecting a frame with the magnet pot, where the frame includes first and second opposite side walls, where the first and second opposite side walls of the frame have outer sides with a second distance therebetween, where the first distance is substantially the same as the second distance, and where the outer sides of the first and second portions of the at least one projection are respectively located at the outer sides of the first and second opposite side walls of the frame.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: February 19, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Shengrong Shi, Yuanjia Yang, Jian Guo, Oscar Lopez
  • Patent number: 10194236
    Abstract: A speaker frame, including: a vibration support portion supporting a vibrating body of a speaker; a magnet support portion arranged inside of said vibration support portion and supporting magnetic circuit portion of said speaker; and a plurality of connection beams connecting said vibration support portion and said magnet support portion, wherein the vibration support portion and the magnet support portion have a circular ring shape having the same major axis length and minor axis length, said plurality of connection beams are arranged radially centering on a central axis from said magnet support portion to said vibration support portion, the central axis being parallel to a direction of an acoustic radiation, and a length of one of said connection beams and a length of another connection beams are different from each other.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: January 29, 2019
    Assignees: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Shintaro Niidera, Satoshi Hachiya
  • Patent number: 10194248
    Abstract: A speaker assembly including a frame and a magnet assembly positioned within the frame. The magnet assembly may include a magnet and a top plate. The assembly further including a sound radiating surface suspended over the magnet assembly. The sound radiating surface includes a flexible circuit. A suspension suspending the sound radiating surface over the magnet assembly is further provided. The suspension may be over molded to the sound radiating surface and the frame. A voice coil extends from a bottom side of the sound radiating surface and electrically connects to the flexible circuit.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: January 29, 2019
    Assignee: Apple Inc.
    Inventors: Anthony P. Grazian, Christopher Wilk, Hongdan Tao, Scott P Porter, Michael Asfaw
  • Patent number: 10178480
    Abstract: Disclosed are a magnetic circuit system for a loudspeaker, and a loudspeaker. The magnetic circuit system for a loudspeaker comprises a magnetically conductive plate (11), a central magnet (12), a central washer (14), a side magnet (13), and a side washer (15). The side washer (15) comprises a washer body (151) and a bent portion (152) continuing from the washer body (151). The washer body (151) is arranged on the surface, away from the magnetically conductive plate (11), of the corresponding side magnet (13). The bent portion (152) is bent towards the magnetically conductive plate (11) from top to bottom via a side face (15a) of the washer body (151). The bent portion (152) and the magnetically conductive plate (11) are fixedly welded together.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: January 8, 2019
    Assignee: Goertek Inc.
    Inventors: Zhibing Zhang, Gang Chen
  • Patent number: 10171914
    Abstract: A vibration sound-generating device comprises a housing and a vibration system and a magnetic circuit system received in the housing, a sound exit hole being provided on a side surface of the housing, wherein the vibration system comprises a vibrating diaphragm, a voice coil and a voice coil framework for connecting the vibrating diaphragm with the voice coil, the voice coil is of a flat structure, and a plane where the voice coil lies is perpendicular to the plane where the vibrating diaphragm lies; the magnetic circuit system comprises magnets, and a plane where the magnets lie is parallel to the plane where the voice coil lies; the vibration sound-generating device further comprises a mass block and an elastic support, and the elastic support suspends the mass block and the magnets in the housing; and the elastic support is an annular structure, the mass block and the magnets are located inside the elastic support, two opposed sides of the elastic support are fixedly connected with the magnets, and the oth
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: January 1, 2019
    Assignee: GOERTEK INC.
    Inventors: Yueguang Zhu, Chao Wang
  • Patent number: 10149063
    Abstract: An example vibrating body for the acoustic transducer may include a diaphragm including a first vibrating part and a second vibrating part located at an outer circumference of the first vibrating part. A coil is configured to vibrate the diaphragm. An edge portion is located at an outer circumference of the diaphragm. A plurality of ribs are provided outside of the coil on the second vibrating part formed integrally with the second vibrating part. A plurality of ribs is provided on the edge portion formed integrally with the edge portion. None of the integrally formed ribs is provided inside of the coil on the first vibrating part. The ribs provided on the second vibrating part are formed in an inner circumferential side of regions of the edge portion, the regions being located between the ribs provided on the edge portion next to each other.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: December 4, 2018
    Assignees: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Kenya Watanabe, Yoshihiro Kimura, Masanori Ito
  • Patent number: 10142736
    Abstract: An electroacoustic transducer includes: a diaphragm having two pairs of longitudinal split tubular surfaces; a converter that performs conversion between vibration of the diaphragm and an electric signal; and a supporter supporting the diaphragm. The two pairs of longitudinal split tubular surfaces form valleys and ridge portions. In each pair of the two pairs of longitudinal split tubular surfaces, one-side portions of the respective longitudinal split tubular surfaces form a valley. Another-side portion of the split tubular surface of each one of the two pairs and an other-side portion of the split tubular surface of the other of the two pairs form a ridge portion. The two pairs of longitudinal split tubular surfaces are arranged in at least one of a state in which the valleys are orthogonal to each other and a state in which the ridge portions are orthogonal to each other.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: November 27, 2018
    Assignee: Yamaha Corporation
    Inventor: Masao Noro
  • Patent number: 10070229
    Abstract: An exciter (1) includes a vibrator (2) including a yoke and a magnet, a frame (3) incorporating the vibrator (2) with a damper (4) therebetween, and a voice coil bobbin (5) disposed inside the frame (3) and having another end (5b) that extends to near the vibrator (2) and is provided with a voice coil (11). The frame (3) has an opening (3b), and the voice coil bobbin (5) is mounted on the edge of the opening (3b). One end (5a) of the voice coil bobbin (5) is opened to the outside of the frame (3). The voice coil bobbin (5) is provided with a vibrating member (10) that covers the opened portion.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: September 4, 2018
    Assignee: CLARION CO., LTD.
    Inventor: Kenji Kono
  • Patent number: 10034095
    Abstract: A miniature speaker includes a frame and a vibrating system accommodated in the frame. The vibrating system includes a diaphragm fixed on the frame and a voice coil for driving the voice diaphragm to vibrate. The speaker further includes a magnetic circuit system. The diaphragm includes a first suspension positioned at a middle portion thereof, a second suspension positioned at an edge thereof, and a dome connecting the first suspension with the second suspension; and the magnetic circuit system is connected with the first suspension and is suspended in the frame by the first suspension.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: July 24, 2018
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventor: Lubin Mao
  • Patent number: 9998831
    Abstract: A speaker is provided in the present disclosure. The speaker includes a frame with a receiving space, a vibration system and a magnetic circuit system which are received in the frame, wherein the vibration system comprises a diaphragm fixedly connected to the frame, a voice coil for driving the diaphragm to vibrate and a voice coil lead connected with the voice coil; the diaphragm comprises a dome portion in the center, and a suspension portion extended from the dome portion and encircling the dome portion; the dome portion comprises a main body portion connected with the voice coil and an extended portion extended from the main body portion to the outgoing line direction of the voice coil lead; and the central axis of the diaphragm and the central axis of the magnetic circuit system are non-coaxial and parallel.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: June 12, 2018
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventor: Yun Tang
  • Patent number: 9942664
    Abstract: A speaker includes a frame having an accommodation space; a magnetic circuit system accommodated in the accommodation space; and a vibration system accommodated in the accommodation space for generating sound. The vibration system includes a diaphragm and a voice coil. The diaphragm includes a first part fixed with the frame and a second part arranged between the first part and the frame. One end of the second part is connected with the first part. The accommodation space is divided by the second part into a first accommodation space for accommodating the magnetic circuit system and a second accommodation space for accommodating the voice coil.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: April 10, 2018
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Lubin Mao, Hongxing Wang, Shun Guo, Rongguan Zhou
  • Patent number: 9936300
    Abstract: In one embodiment, there is described a new transducer, and in particular an improved system and method for producing linear motion for a transducer such as used in voice coils converting from an electrical input to a mechanical linear motion input.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 3, 2018
    Assignee: Linear Labs, Inc
    Inventor: Fred E. Hunstable
  • Patent number: 9906868
    Abstract: A miniature speaker includes a frame; a vibration system including a diaphragm and a voice coil driving the diaphragm. The diaphragm includes a first fixation part located on a middle position of the diaphragm, a second fixation part located on an edge of the diaphragm and connected fixedly on the frame, and a vibration part connected between the first fixation part and the second fixation part. A magnetic circuit system includes a lower plate and a magnet part on the lower plate. A cover plate includes a bottom wall, and a side wall connected with the second fixation part. A gasket is located between and abuts against the bottom wall and the first fixation part. The gasket, the first fixation part and the magnet part are sandwiched firmly between the bottom wall and the lower plate.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: February 27, 2018
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Lubin Mao, Chengxia Ji, Fei Hou
  • Patent number: 9894443
    Abstract: A loudspeaker includes a frame, a diaphragm, an edge, a magnetic circuit, and a voice coil body. The magnetic circuit includes a magnet and a bottom plate. The bottom plate includes an installation part and a plurality of arms. The installation part is located on the first side of the magnet and is magnetically connected to the magnet. The arms project from the installation part toward the outer periphery and are connected to the frame.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: February 13, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuki Honda, Mitsukazu Kuze
  • Patent number: 9872108
    Abstract: A loudspeaker device includes a frame having a bottom portion with a curved surface along a first direction and a pair of lateral portions provided at lateral sides of the bottom portion in the first direction; a plurality of magnets curved and extended along the curved surface of the bottom portion, and arranged to be spaced apart from each other; a diaphragm supported by the pair of lateral portions, curved in parallel with the curved surface of the bottom portion, and spaced apart at a predetermined distance from top surfaces of the plurality of magnets; and a coil provided on the diaphragm at positions corresponding to spaces between the plurality of magnets in the first direction, the coil being configured to drive the diaphragm to vibrate in a direction perpendicular to the curved surface of the bottom portion of the frame by a magnetic field formed by the plurality of magnets as an audio signal is electrically applied.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: January 16, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho-jin Yoon, Min Kim, Liam Joseph Kelly
  • Patent number: 9857288
    Abstract: Methods, systems, and apparatuses are disclosed for laser bond inspection of an angled or compact bonded article.
    Type: Grant
    Filed: November 1, 2014
    Date of Patent: January 2, 2018
    Assignee: LSP TECHNOLOGIES, INC.
    Inventors: David Sokol, Craig Walters
  • Patent number: 9838796
    Abstract: Disclosed is an electroacoustic transducer, comprising a vibration system and a magnetic circuit system, wherein the vibration system comprises a vibrating diaphragm and a voice coil; and the magnetic circuit system comprises a yoke, a central magnet, and edge magnets; wherein, each edge magnet has a strip shape, limiting parts are provided at two corners of any edge magnet closer to a magnetic gap, and the yoke is provided with stoppers abutted against the limiting parts at positions corresponding to the limiting parts. Each edge magnet of the present invention is provided with limiting parts formed by removing material, and the yoke is provided thereon with stoppers for preventing the edge magnets from approaching the central magnet, so that a bad phenomenon due to the fact that the edge magnets and the central magnet are attracted to each other can be avoided, thereby increasing the yield of a product.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: December 5, 2017
    Assignee: GOERTEK INC.
    Inventors: Di Wu, Guanglei Liu
  • Patent number: 9807518
    Abstract: This invention relates to acoustic drivers with stationary and moving coils. Time varying signals are applied to the moving and stationary coils to control the movement of a diaphragm, which produces audible sound. The time varying signals correspond to an input audio signal such that the sound corresponds to the input audio signal. Some of the described embodiments include multiple moving coils, multiple stationary coils or both. Some embodiments include feedback for adjusting one or more of the signals based on a characteristic of the acoustic driver. Various compensation and other features of the invention are also described in relation to various embodiments.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: October 31, 2017
    Assignee: Harman Becker Gepkocsirendszer Gyarto Korlatolt Felelossegu Tarsasag
    Inventors: John B. French, Andrew J. Mason
  • Patent number: 9668038
    Abstract: A loudspeaker includes a longitudinal enclosure having at least one subwoofer speaker for emitting lower sound frequencies; a carrier portion on top of the longitudinal enclosure; and a speaker arrangement having individual speakers for emitting higher sound frequencies arranged in a different direction with respect to the longitudinal enclosure, wherein the speaker arrangement is fixed to the carrier portion and is not surrounded by the longitudinal enclosure.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: May 30, 2017
    Assignee: Kaetel Systems GMBH
    Inventor: Klaus Kaetel
  • Patent number: 9654890
    Abstract: The present disclosure provides a method for testing an apparatus which comprises a set of operational subunits each comprising a moving element, wherein the moving elements move between respective first and second extreme positions, the method comprising: transferring to the apparatus stabilization control commands; transferring to the apparatus first latching-commands for latching to the first extreme position a candidate moving element which is a moving element of a candidate operational subunit; when the first latching control commands are in effect, measuring a first output frequency of an oscillator whose output is coupled to the candidate operational subunit in an electrical coupling setup which causes the output frequency of the oscillator to depend on positions of a plurality of moving elements which comprises the candidate moving element; and based on the first output frequency determining a state of the candidate operational subunit.
    Type: Grant
    Filed: November 17, 2013
    Date of Patent: May 16, 2017
    Assignee: AUDIO PIXELS LTD.
    Inventors: Eric Andreas Haber, Yuval Cohen, Shay Kaplan, Daniel Lewin, Meir Ben Simon
  • Patent number: 9578421
    Abstract: A vibration unit of a miniature speaker is disclosed that the vibration unit has a diaphragm, a voice coil driving the diaphragm along a vibration direction, and a support around which the voice coil is wound. The support includes a base attached to the diaphragm, and a number of sidewalls each extending from a bound of the base along the vibration direction to a distal end thus forming an edge connecting the distal end and the bound. The support further includes a number of smooth corners formed at the edges of the sidewalls. For forming the smooth corners, each of the sidewalls includes two flanges extending from two edges for protecting the voice coil from being cut broken.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: February 21, 2017
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Song Pan, Yi Shao
  • Patent number: 9549262
    Abstract: A miniature electroacoustic transducer includes: a metal shell, having the shape of a barrel with one open end; a vibrating system, including a vibrating diaphragm and a voice coil; and a magnetic circuit system, including a concentrating flux plate, a magnet and a magnetic yoke that are sequentially combined together. The magnetic circuit system is formed with a magnetic gap corresponding to the voice coil; the vibrating system and the magnetic circuit system are fixedly installed in the barrel-shaped shell; the components in the structure are further modularized, maximizing the magnet under the same product dimension and effectively improving the product sensitivity. An assembling method of the electroacoustic transducer includes: a. providing a barrel-shaped metal shell with one open end; b. putting a pre-assembled vibrating system into the shell; c. putting a pre-assembled magnetic circuit system into the shell; and d. fixedly assembling the shell with the magnetic yoke.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: January 17, 2017
    Assignee: GOERTEK INC.
    Inventors: Ze Wang, Lianshan Ge, Chunfa Liu
  • Patent number: 9467759
    Abstract: A speaker box is disclosed. The speaker box includes a housing including a bottom wall, and a speaker unit accommodated in the housing. The speaker unit includes a magnetic circuit unit having a lower plate, a magnet on the lower plate, an upper plate on the magnet, and a magnetic gap. The lower plate abuts against the bottom wall for forming a space communicated with the magnetic gap. Thus, the air pressure in the magnetic gap is balanced, and the low frequency sound performance is improved.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: October 11, 2016
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Bin Cai, Bo Xiao
  • Patent number: 9467783
    Abstract: A low profile loudspeaker transducer is presented with an arrangement of placing the motor up near or into the inside concave portion of a convex dome or inverted convex cone diaphragm. In some preferred embodiments the low profile structure is facilitated by an inverted placement of the spider suspension above the plane of the surround suspension to stabilize the voice coil during excursion while supporting a low profile structure. Additionally, in numerous embodiments a coupling structure is utilized between the voice coil former and the diaphragm to create a broad surface area connection to the diaphragm to create a stiffer structure and minimizing breakup modes and creating a more robust mechanical structure to withstand greater output capability.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: October 11, 2016
    Assignee: TYMPHANY WORLDWIDE ENTERPRISES LIMITED
    Inventor: George Bullimore
  • Patent number: 9452101
    Abstract: Provided is a comfortable and discrete device wearable by a patient to restore balance and gait. The device re-establishes the sensorimotor loop by providing the patient with a secondary signal to healthy nerves around the knee to alert the patient that the patient's heel has just struck the ground. In this regard, the device monitors the patient's leg movements to detect when the patient's heel strikes the ground and sends the secondary signal, i.e., vibrotactile stimulation, in response to the detected heel strike. The central nervous system incorporates the new signal and the motor system responds as if there is not loss of sensation in the foot and returns to its normal gait.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: September 27, 2016
    Assignee: WALKJOY, INC.
    Inventors: Blain Tomlinson, David Eckhous, Daniel B. Edney, Royce Rumsey
  • Patent number: 9449596
    Abstract: Provided are a sound generation system and a sound recording system, which are placed in a room to adjust sound. A columnar body is disposed around a sound source to adjust how much sound of a low-tone range, as well as of a middle- and high-tone range, is absorbed and diffused. Moreover, a columnar body is disposed around a recording device to adjust how much sound of a low-tone range, as well as of a middle- and high-tone range, is absorbed and diffused. The columnar bodies may be made of a combination of different diameters and/or lengths. The arrangement distances may be random. With the columnar body disposed at the most appropriate location, it is possible to adjust sound in a wide band.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: September 20, 2016
    Assignee: Nittobo Acoustic Engineering Co., Ltd.
    Inventors: Shinji Ohashi, Koichi Yamashita, Yasushi Satake, Katsuyuki Kanazawa
  • Patent number: 9357311
    Abstract: The present disclosure provides a speaker. The speaker includes a frame, a magnetic circuit system disposed within the frame, and a vibrating system disposed above the magnetic circuit system and connected with the frame. The vibrating system includes a diaphragm that includes a vibrating portion having a far portion away from the magnetic circuit system and an adjacent portion adjacent to the magnetic circuit system. An avoid part for avoiding the adjacent portion is disposed at a position on the magnetic circuit system that corresponds to the adjacent portion of the diaphragm which ensures the maximum amplitude of the diaphragm to avoid noises that would be generated due to collision with the magnetic circuit system when the vibrating system operates at the maximum amplitude.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: May 31, 2016
    Assignees: AAC Microtech (Changzhou) Co., Ltd., AAC Acoustic Technologies (Shenzhen) Co., Ltd.
    Inventors: Yunxia Xu, Bin Cai
  • Patent number: 9351058
    Abstract: A speaker frame, including: a vibration support portion supporting a vibrating body of a speaker; a magnet support portion arranged inside of said vibration support portion and supporting magnetic circuit portion of said speaker; and a plurality of connection beams connecting said vibration support portion and said magnet support portion, wherein the vibration support portion and the magnet support portion have a circular ring shape having the same major axis length and minor axis length, said plurality of connection beams are arranged radially centering on a central axis from said magnet support portion to said vibration support portion, the central axis being parallel to a direction of an acoustic radiation, and a length of one of said connection beams and a length of another connection beams are different from each other.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: May 24, 2016
    Assignees: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Shintaro Niidera, Satoshi Hachiya
  • Patent number: 9319777
    Abstract: A drive signal generating unit generates a drive signal having a cyclic waveform containing a zero period in a vibration mode. A driver unit generates the drive current in response to the drive signal generated by the drive signal generating unit so as to supply the drive current to a voice coil. An induced voltage detector detects the induced voltage occurring in the voice coil during a nonconducting period. A zero-cross detector detects the zero cross of the induced voltage detected by the induced voltage detector. The drive signal generating unit estimates the eigen-frequency of a vibration speaker from a detected position of the zero cross and brings the frequency of the drive signal close to the estimated eigen-frequency.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: April 19, 2016
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Daisuke Aoki, Tsutomu Murata
  • Patent number: 9307306
    Abstract: Disclosed is a micro loudspeaker. The casing of the micro loudspeaker comprises an upper side surface and a lower side surface. An electric connecting piece comprises a first deformation part located on one side of the upper side surface of the casing and side bent upwards, a second deformation part located on one side of the lower side surface and side bent downwards, a connecting part electrically connecting the first deformation part and the second deformation part. The top end of the first deformation part and the bottom end of the second deformation part are respectively provided with a first conducting part and a second conducting part. An electronic device comprises a micro loudspeaker mentioned above, a shell, a first sound hole and a circuit board, wherein a first conducting part or a second conducting part of the micro loudspeaker is electrically connected to the circuit board.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: April 5, 2016
    Assignee: GOERTEK INC.
    Inventors: Yunhai Li, Shanglei Ning, Guanglei Liu
  • Patent number: 9241205
    Abstract: A vibration device includes a first frame member, a first vibration body, a second frame member, a second vibration body, and an exciter. The first vibration body is provided in an inner region of the first frame member. The second frame member is attached to the first vibration body with a spacing from the first frame member. The second vibration body is provided in an inner region of the second frame member with a spacing from the first vibration body. The exciter is attached to the second vibration body.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: January 19, 2016
    Assignee: Kyocera Corporation
    Inventors: Shuichi Fukuoka, Noriyuki Kushima, Hiroshi Ninomiya, Takeshi Hirayama
  • Patent number: 9219962
    Abstract: In one embodiment, there is described a new transducer, and in particular an improved system and method for producing linear motion for a transducer such as used in voice coils converting from an electrical input to a mechanical linear motion input.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: December 22, 2015
    Assignee: Linear Labs, Inc.
    Inventor: Fred E. Hunstable
  • Patent number: 9124968
    Abstract: A reflector and an electronic system produce a diffuse way by creating time delays in accordance with a number sequence. An acoustical passive reflector incorporates a series of wells in its surface to transform an acoustical wave into a series of acoustical waves having a time difference based on a number sequence. The electronic signal conversion system converts a signal into a series of signals having a time difference based on a number sequence. This can be used in an audio speaker system having N×N array of speakers where N is an odd prime number, arranged to be driven by the electronic signal conversion system in which the signal is converted into a series of signals centered on the signal with at least one signal being timed to precede the signal and at least one signal to follow the signal and the signal being arranged to be sent to the central speaker in the N×N array.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: September 1, 2015
    Assignee: Acoustic 3D Holdings Limited
    Inventor: Joseph Francis Hayes
  • Patent number: 9071909
    Abstract: A multifunctional electromagnetic transducer includes a bracket, a vibrating unit including a magnetic circuit part receiving in the bracket, and a plurality of helical wound springs assembled to the bracket for sustaining the magnetic circuit part. The magnetic circuit part defines a pole plate, a first magnet disposed at a center portion of the pole plate, and a plurality of second magnets surrounding the first magnet and forming a magnetic gap corporately with the first magnet. Each of the second magnets forms a receiving gap corporately with an adjacent second magnet. A voice coil is partially inserted into the magnetic gap.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: June 30, 2015
    Assignees: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD., AMERICAN AUDIO COMPONENTS INC.
    Inventors: Lin-Zhen Li, Suo-He Wei
  • Patent number: 9042594
    Abstract: Electro-dynamic transducer (1) including: a main magnetic circuit (2) defining an air gap (15), a moving part (16) comprising a dome shaped diaphragm (17) fixed to a movable coil (18) diving into the air gap (15); a support (20) to which the moving part (16) is suspended; a suspension (26) linking the moving part (16) and the support (20); wherein the support (20) at least partly extends in an inner volume inside the moving part (16), wherein the suspension (26) is fixed, by an outer periphery, to an inner face of the moving part (16), and wherein the suspension (26) is made of an acoustically non emitting material.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: May 26, 2015
    Assignee: PHL AUDIO
    Inventors: Yoann Flavignard, Philippe Lesage
  • Patent number: 9042593
    Abstract: A protective portion is provided on a lower surface of a sound reproducing device, and has a protective wall that restrains a deformation of a terminal in a direction different from an elastic deformation direction of the terminal. The terminal includes a restrained portion in which the deformation is restrained with the protective wall. The restrained portion is provided at at least one of a position closer to a base than a feeding portion of the terminal and a position closer to a tip portion of the terminal than the feeding portion. The protective wall extends along the restrained portion. This configuration can suppress a plastic deformation of the terminal even when a force in the direction different from the elastic deformation of the terminal is applied to the terminal.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: May 26, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tomoyuki Matsunaga, Kazuki Honda, Kazuyuki Kosuda, Shigeru Tomoeda
  • Patent number: 9030409
    Abstract: According to an embodiment, a method for controlling a portable device connected to an earphone having a coil includes detecting removal of one of left and right units of the earphone worn by a user, generating an electromagnetic pattern corresponding to an Identifier(ID) of the portable device at the removed unit of the earphone, and receiving data from the external device in correspondence with the ID of the portable device. According to an embodiment, a method for controlling a display device includes displaying a Graphic User Interface on a display unit, sensing an earphone within a detection area of the display unit, sensing an electromagnetic pattern of the earphone within a detection area of the display unit, acquiring an ID of an external device connected to the earphone from the sensed electromagnetic pattern, and transmitting data to the external device identified by the acquired ID of the external device.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: May 12, 2015
    Assignee: LG Electronics Inc.
    Inventors: Jihwan Kim, Jungbin Yim, Sihwa Park