Plural Diaphragms Patents (Class 381/186)
  • Patent number: 12041411
    Abstract: A speaker is provided. The speaker includes a housing. The speaker also includes a first diaphragm plate positioned within the housing and comprising a first driving device forming an exterior surface of the first diaphragm plate. The speaker further includes a second diaphragm plate positioned within the housing and comprising a second driving device forming an exterior surface of the second diaphragm plate. In addition, the speaker includes an insert plate fixedly attached to the housing and positioned between the first diaphragm plate and the second diaphragm plate. The insert plate includes an insert plate driving device positioned adjacent the first driving device and the second driving device. The insert plate driving device is configured to interact with the first driving device to move the first diaphragm plate relative to the housing and interact with the second driving device to move the second diaphragm plate relative to the housing.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: July 16, 2024
    Assignee: Guoguang Electric Corp. Ltd
    Inventor: George Shaolin Wei
  • Patent number: 12010481
    Abstract: An acoustic filter suitable for an electro-acoustic transducer includes a relatively high frequency driver and a relatively low frequency driver situated on a common axis. The acoustic filter includes a baffle body having an outer side and an inner side, such that the outer side serves as a baffle for the high frequency driver. The inner side forms a first wall of a Helmholtz resonator including a chamber and a vent duct communicating with the chamber.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: June 11, 2024
    Assignee: BLUEPRINT ACOUSTICS PTY LTD
    Inventor: Zeljko Velican
  • Patent number: 11985490
    Abstract: Herein described may be an embodiment of a surround sound headphone device for the production of surround sound which may comprise a first and second headphone assembly which may have acoustic chamber surrounds. The acoustic chamber surrounds may envelope a first and second acoustic chamber assembly. The first and second acoustic chamber assembly may have an acoustic chamber dividing partition, a one or more than one high frequency external port, a one or more than one low frequency external port, a one or more than one low frequency high frequency port, a one or more than one high frequency high frequency port, a one or more than one high frequency auditory source and, a one or more than one low frequency auditory source.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: May 14, 2024
    Assignee: Primer Studios, Corporation
    Inventor: Greg Thune
  • Patent number: 11985475
    Abstract: An audio speaker for projecting sound into a listening space having an on-axis includes a frame supporting at least two drivers radially arrayed in a plane substantially perpendicular to the on-axis. The at least two drivers may be electrically connected to operate in common acoustic phase, substantially the same size, mid-range drivers, and/or may include at least one rearward facing driver. The audio speaker may also include an on-axis driver, or an inner driver positioned substantially at a point where a first line drawn perpendicularly through a face of a first driver of the at least two drivers and a second line drawn perpendicularly through a face of a second driver of the at least two drivers converge. The inner driver may be a high frequency driver, for example, a tweeter, and a face of the inner driver may be substantially perpendicular to the on-axis.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: May 14, 2024
    Assignee: Endow Audio, LLC
    Inventor: David T. Strunk
  • Patent number: 11968511
    Abstract: This disclosure provides a loudspeaker, including a first basket; a second basket; a cone paper enclosing an accommodating cavity with openings at both ends, the openings at both ends of the cone paper being respectively provided with the first basket and the second basket; a magnetic circuit structure located in the accommodating cavity; and a voice coil assembly located in the accommodating cavity, installed between the magnetic circuit structure and an inner wall of the accommodating cavity of the cone paper, and connected to the inner wall of the accommodating cavity of the cone paper, the voice coil assembly being configured to move under an action of a magnetic field of the magnetic circuit structure to drive the cone paper to vibrate. This disclosure further provides a loudspeaker device.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: April 23, 2024
    Assignee: GOERTEK INC.
    Inventors: Kekang Zhao, Qing Yang
  • Patent number: 11963452
    Abstract: A method of forming a piezoelectric microphone with an interlock/stopper and a micro-bump and a resulting device are provided. Embodiments include forming a membrane over a Si substrate having a first and second sacrificial layer disposed on opposite surfaces thereof, the membrane being formed on the first sacrificial layer, forming a first HM over the membrane, forming first and second vias through the first HM, forming a first pad layer in the first and second vias and over an exposed top thin film, forming a trench to the first sacrificial layer between the first and second vias and a gap between the trench and second via, patterning a second HM over the membrane, in the first and second vias, the trench and the gap, and forming a second pad layer over the second HM and in exposed areas around the first and second vias to form pad structures.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: April 16, 2024
    Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR SINGAPORE PTE. LTD.
    Inventors: Jia Jie Xia, Rakesh Kumar, Minu Prabhachandran Nair, Nagarajan Ranganathan
  • Patent number: 11956591
    Abstract: The present disclosure discloses an acoustic output device. The acoustic output device may include a first acoustic driver including a first diaphragm; a second acoustic driver including a second diaphragm; a control circuit electrically connected with the first acoustic driver and the second acoustic driver respectively, the control circuit provides a first electrical signal for driving a vibration of the first diaphragm, and a second electrical signal for driving a vibration of the second diaphragm, and a phase of the first electrical signal and a phase of the second electrical signal are opposite; and a housing supporting the first acoustic driver and the second acoustic driver, wherein a sound generated by the vibration of the first diaphragm is radiated outward through a first sound guide hole on the housing, and a sound generated by the vibration of the second diaphragm is radiated outward through a second sound guide hole on the housing.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: April 9, 2024
    Assignee: SHENZHEN SHOKZ CO., LTD.
    Inventors: Junjiang Fu, Lei Zhang, Xin Qi, Fengyun Liao
  • Patent number: 11950073
    Abstract: The present invention provides a coaxial speaker, which includes a frame, a vibration system and a magnetic circuit system. The magnetic circuit system includes a magnetic conduction assembly and a magnet assembly. The magnetic conduction assembly includes a first magnetic conduction plate, an inner side wall and an outer side wall, and a second magnetic conduction plate fixed on the side of the inner side wall. The magnet assembly includes a first magnet that forms a first magnetic gap and a second magnet that forms a second magnetic gap, a first vibration assembly and a second vibration assembly. The present invention is provided with high internal space integration, high magnetic circuit utilization, and meets the requirements of the full frequency domain.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventor: Tao Shao
  • Patent number: 11930341
    Abstract: The present invention provides a coaxial speaker, including a frame, a magnetic circuit system, and coaxially arranged first sounding unit and second sounding unit. The magnetic circuit system includes a magnetic bowl and a magnet part. The magnet part includes a first magnet part and a second magnet part, and the first magnet part is arranged with a first channel. The second magnet part is arranged with a second channel. The support component encloses the third channel connected to the through hole of the first diaphragm, and the first channel, the second channel and the third channel are connected to form the sound channel of the second sounding unit. The sound from the second sounding unit is emitted from the through hole of the first diaphragm through the sound channel. The coaxial speaker of the present invention has a good treble effect.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: March 12, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventor: Tao Shao
  • Patent number: 11910174
    Abstract: An unistructurally formed acoustic speaker cone unit includes (a) a suspension ring with at least one continuous loop rib; (b) a central dome-shaped cone with thin, arcuate pie-shaped segments which radiate outwardly, and with a plurality of arc ribs; and (c) a main diaphragm having a plurality of segments radiating outwardly and extending to the suspension ring. Each main diaphragm segment has an arcuate cross-section, thereby creating a concave side and a convex side. The central cone segments are preferably equal in number to the diaphragm segments and are in alignment therewith.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: February 20, 2024
    Inventor: Alexander Faraone
  • Patent number: 11849277
    Abstract: A loudspeaker system, having a good low-frequency response without a large box and effectively improving the efficiency of the loudspeaker system, so as to increase the output sound pressure level of the system, comprises a box and a plurality of loudspeakers arranged in the box and connected in parallel with each other, wherein each of the loudspeakers comprises a frame, a diaphragm arranged on the frame, and a voice coil for driving a vibration of the diaphragm; front surfaces of the diaphragms of the loudspeakers are arranged to face each other; a sound cavity is formed among the front surfaces of the diaphragms, and the sound cavity is in communication with the outside of the box; and each of the frames is located between a rear surface of its corresponding diaphragm and an inner wall of the box.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: December 19, 2023
    Assignee: SUZHOU SONAVOX ELECTRONICS CO., LTD.
    Inventors: Yuewu Shen, Shenggang Tao, Jianfeng Tang, Xiaoqing Wang, Guoqiang Chai
  • Patent number: 11780378
    Abstract: A vehicle speaker mount for a speaker includes a central bracket and a plurality of elongated portions extending radially outward from the central bracket. each of the elongated portions includes a respective engagement tab at a distal end of the elongated portion with each engagement tab is configured to be releasably connectable with a base of the speaker. Furthermore, the central bracket defines at least one aperture for receiving hardware to connect the mount to a vehicle surface. The vehicle speaker mount may include a threaded ring member and a base ring for securing the vehicle surface therebetween, or a plurality of flanges extending from a base ring for providing additional mounting surfaces.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: October 10, 2023
    Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    Inventors: Jeffery Fay, Michael Meng, Christina Wu
  • Patent number: 11729556
    Abstract: Two coils are wrapped in one of numerous different implementations. In one implementation, the two coils are wrapped about a portion of a bobbin that has at least three flanges. The first coil is disposed about a first portion of the bobbin between the first flange and the second flange, and a second coil is disposed about a second portion of the bobbin between the second flange and the third flange.
    Type: Grant
    Filed: December 27, 2020
    Date of Patent: August 15, 2023
    Assignee: KNOWLES ELECTRONICS, LLC
    Inventors: Yahui Zhang, Shehab Albahri, Richard Scheleski, Thomas Miller, Charles King
  • Patent number: 11722814
    Abstract: Disclosed herein is a sound output apparatus including a case including a hole, and a speaker unit including a first speaker unit and a second speaker unit, wherein the first speaker unit and the second speaker unit are mounted on the case through the hole, spaced apart from each other by a preset distance, and symmetrically arranged, wherein the first speaker unit and the second speaker unit output sound in opposite directions.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: August 8, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Daegee Kang, Seunghark Paek, Minkoo Kim, Seunghwan Kim
  • Patent number: 11696059
    Abstract: A two-way receiver includes a cylindrical frame, a yoke dividing an internal space of the frame and including a cylindrical portion, a first flange portion formed at an outer periphery of the cylindrical portion, a connection wall bent downward from the first flange portion, a second flange portion formed at an outer periphery of the connection wall, and a communication hole formed by deleting a portion of the connection wall and second flange portion. A first speaker unit is installed above the yoke, and a second speaker unit below the yoke. A protector coupled to a lower portion of the frame protects the second speaker. A bass duct formed on an outer periphery of the first speaker unit has a sound emission hole for emitting a sound of the first speaker unit emitted to the communication hole of the yoke to a position spaced apart from the communication hole.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: July 4, 2023
    Assignee: EM-TECH Co., Ltd.
    Inventors: Jun Hee Han, Yong Ju Ji
  • Patent number: 11683637
    Abstract: A signal converter includes a chamber, a first diaphragm, a second diaphragm, and a first converter. The chamber has a first opening at one end and a second opening at a second end opposite the first end. The first diaphragm is disposed so as to cover the first opening. The second diaphragm is disposed so as to cover the second opening. The first converter is disposed in the chamber and configured to generate a first signal based on a vibration of the first diaphragm.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: June 20, 2023
    Assignee: YAMAHA CORPORATION
    Inventor: Masao Noro
  • Patent number: 11606645
    Abstract: A loudspeaker includes a housing, a driver module and a vibrator module. The housing has a first wall section, and a second wall section that is spaced apart from the first wall section in a first direction. The driver module is mounted to the housing and includes at least one driver cone. The vibrator module includes a pair of first vibrators that are disposed on the first wall section and that are respectively located at two opposite sides of the driver module in a second direction perpendicular to the first direction and a pair of second vibrators that are disposed on the second wall section and that are respectively located at two opposite sides of the driver module in the second direction.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: March 14, 2023
    Assignee: TOP VICTORY INVESTMENTS LIMITED
    Inventors: Ling Phin Darren Chan, Chin Beng Alvin Goh
  • Patent number: 11540417
    Abstract: The invention provides a sounding device. The sounding device comprises a housing body with an accommodating space, a one-way inlet valve and a one-way outlet valve. A speaker unit partitions the accommodating space into a front cavity and a back cavity. The one-way inlet valve communicates the outside and the back cavity and is used for introducing air into the back cavity. The one-way outlet valve communicates the back cavity and the outside and is used for discharging the air in the back cavity outside. A first through hole communicating the outside and the back cavity is formed in the housing body. The invention also provides a mobile terminal. Compared with the related art, the sounding device and the mobile terminal of the invention have better reliability and better performance.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: December 27, 2022
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Xingzhi Huang, Lin Liu, Dijiang Tong, Zhe Zhang, Jun Wu, Zhichen Chen, Zhaoyu Yin
  • Patent number: 11540055
    Abstract: A headset includes a speaker, such as a side firing dipole speaker. The headset includes a front chamber that receives sound waves from a first side of the speaker and a rear chamber that receives sound waves from a second side of the speaker. A control leak channel connects the front chamber and the rear chamber. An acoustic mesh may be located within the control leak channel. The speaker configuration is configured to reduce total harmonic distortion of the speaker, particularly in ranges such as 3-6 kHz, while maintaining the broadband efficiency of the speaker.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: December 27, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Tetsuro Oishi, Rex Pinegar Price, Limin Zhou, Michael Thomas Frank, Joshua James Barr, Michael Lee Butts
  • Patent number: 11528560
    Abstract: The present invention relates to a hybrid movable coil plate and a flat panel speaker, and more particularly, to a hybrid movable coil plate and a flat panel speaker which have improved acoustic pressure of the speaker by attaching a coil pattern printed on one surface of the movable coil plate and a copper wire coil wound on the other surface to increase inductive electromotive force. A hybrid movable coil plate for a flat panel speaker is characterized by including a spirally wound copper wire coil attached on one surface thereof and a PCB coil pattern-printed on the other surface thereof, wherein the copper wire coil and the PCB coil are formed in track shapes, a pair of lead wire connection ends are formed, and copper foils are formed in one or more via holes for electrical connection between the copper wire coil and the PCB coil, and in the vicinity of at least one among the one or more via holes.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: December 13, 2022
    Inventor: Dong-Man Kim
  • Patent number: 11523211
    Abstract: A method and device for generating synthetic vortex sound field (SVSF) with more mode number includes the following steps: (1) a transducer array composed of N transducer units is constructed, and each transducer unit emits a sound field to generate an initial sound field; (2) at the same time, the position of the transducer unit and the phase of the sound field emitted by each transducer unit are changed, and each change produces a sound field, and thus changings times produces of sound fields, wherein the way to change the position of the transducer unit is to rotate the transducer array as a whole; (3) the initial sound field is superimposed with s of sound fields generated in step (2), to obtain SVSF with more mode number. The method and device for generating vortex sound field (VSF) can be used for underwater communication or acoustic imaging.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: December 6, 2022
    Assignees: CHENGDU INSTITUTE OF BIOLOGY, CHINESE ACADEMY OF SCIENCES, UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Haibo Jiang, Xinyang He, Yubin Gong, Dan Tang, Yang Yang, Zijun Chen, Jiangnan Fu, Yuan Gao
  • Patent number: 11503410
    Abstract: A display module, a display device and a method of forming a display module are provided. The display module includes: a display sounding structure including a display panel and an auxiliary layer connected to the display panel; an excitation source configured to drive the display panel, the display module further includes a supporting frame, and the display panel is connected to the supporting frame through the auxiliary layer; or an excitation source configured to drive the auxiliary layer to vibrate and sound, the auxiliary layer is a transparent film layer arranged at a light-emitting side of the display panel cooperating with the display panel to form a sounding chamber in an enclosing manner.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: November 15, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Yaqian Ji, Yingming Liu, Xiufeng Li, Yanling Han, Wenchao Han, Yue Gou, Chenyang Zhang, Jing Yu, Wei Sun, Xiaoliang Ding, Yuzhen Guo, Peixiao Li
  • Patent number: 11482659
    Abstract: A piezoelectric actuator including an upper piezoelectric bimorph beam having a first upper piezoelectric layer, a second upper piezoelectric layer and at least three upper electrode layers extending between a first end and a second end of the upper piezoelectric bimorph beam; a lower piezoelectric bimorph beam having a first lower piezoelectric layer, a second lower piezoelectric layer and at least three lower electrode layers extending between a first end and a second end of the lower piezoelectric bimorph beam, and wherein the first end of the lower piezoelectric bimorph beam is coupled to the first end of the upper piezoelectric bimorph beam by a first joint, and the second end of the lower piezoelectric bimorph beam is coupled to second end of the upper piezoelectric bimorph beam; and a base member coupled to a center region of the lower piezoelectric bimorph beam.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: October 25, 2022
    Assignee: APPLE INC.
    Inventors: Daniel Corona, Justin D. Crosby
  • Patent number: 11388504
    Abstract: A head band; and a pair of earmuffs being respectively mounted on two ends of the head band, each of the earmuffs has a speaker and a cushion. The cushion has an annular elastic portion protruded from a peripheral of the cushion and a chamber is surrounded by the annular elastic portion. The speaker has a back housing. A circuit board mounted to the back housing. A connector mounted on the circuit board. A speaker unit mounted to the back housing. A front housing covers the speaker unit and is assembled with the back housing. An opening penetrated through the front housing. A pressure sensor is disposing in the opening. A flexible circuit board connected between the pressure sensor and the connector of the circuit board. The cushion attached to the front housing. The pressure sensor is located in the chamber.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: July 12, 2022
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Sheng Chieh Lo, Peng Yuan Lee, Tzu Yi Wang
  • Patent number: 11323818
    Abstract: A panel audio loudspeaker includes a panel extending in a plane and an actuator coupled to the panel and configured to couple vibrations to the panel to cause the panel to emit audio waves. The actuator includes a rigid frame attached to a surface of the panel and the frame includes a portion extending perpendicular to the panel surface. The actuator also includes an elongate flexure attached at one end to the portion of the frame extending perpendicular to the panel surface, the flexure extending parallel to the plane and having a first width where the flexure is attached to the frame different from a second width where the flexure is unattached to the frame. The actuator further includes an electromechanical module attached to a portion of the flexure unattached to the frame, the electromechanical module being configured to displace an end of the flexure during operation of the actuator.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: May 3, 2022
    Assignee: Google LLC
    Inventors: Rajiv Bernard Gomes, Mark William Starnes, Anthony King
  • Patent number: 11272289
    Abstract: An actuator, attached to a panel extending in a plane, includes a frame and a magnetic circuit assembly that includes a magnet and a voice coil, the magnet and voice coil being moveable relative to each other during operation of the actuator along an axis perpendicular to the panel's plane. The actuator further includes one or more suspension members attaching the frame to a first component of the magnetic circuit assembly. Each suspension member includes a segment attaching the suspension member to the frame at an attachment point and a first arm extending away from the attachment point to an end attached to the first component of the magnetic circuit assembly. During operation of the actuator the first arm of the one or more suspension members flex to accommodate axial displacements of the magnet relative to the voice coil.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: March 8, 2022
    Assignee: Google LLC
    Inventors: Rajiv Bernard Gomes, Mark William Starnes, Anthony King
  • Patent number: 11128952
    Abstract: An omnidirectional loudspeaker box comprises a plurality of loudspeaker modules uniformly disposed in an annular configuration. Each loudspeaker module comprises one or more active vibration units and one or more passive vibration units. The one or more active vibration units are uniformly disposed in an annular configuration. The one or more passive vibration units are uniformly disposed in an annular configuration. The one or more active vibration units can respond to the input of external signals and drive the one or more passive vibration units to vibrate together, thereby generating improved sound quality and effect.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 21, 2021
    Assignee: TANG BAND IND CO., LTD.
    Inventor: Hsin Min Huang
  • Patent number: 11120713
    Abstract: A display apparatus includes a display panel configured to display an image, a supporting member on a rear surface of the display panel and configured to support the display panel, a sound generating device on the rear surface of the display panel and configured to vibrate the display panel to generate sound, and a connection part configured to connect the supporting member to the sound generating device. The sound generating device includes a plate spaced apart from the supporting member, a frame outside the plate, a magnet and a center pole on the plate, a bobbin around the center pole, and a coil outside the bobbin. The connection part is between the supporting member and the frame.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: September 14, 2021
    Assignee: LG Display Co., Ltd.
    Inventor: Kwangho Kim
  • Patent number: 11100912
    Abstract: A noise cancellation headphone comprises a speaker, a front plate for carrying the speaker, a microphone arranged on or in the front plate, and a front vent opening arranged within the front plate and in close proximity to the microphone. The microphone is usable as a feedback microphone for active noise cancellation.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: August 24, 2021
    Assignee: AMS INTERNATIONAL AG
    Inventor: Peter McCutcheon
  • Patent number: 11076240
    Abstract: The present invention discloses a speaker, which includes a basket, a vibration system fixed to the basket, and a magnetic circuit system arranged in the basket. The vibration system includes a first diaphragm fixed to the basket and a second diaphragm oppositely separated from the first diaphragm, the magnetic circuit system includes an upper clamping plate fixed to the basket, and the upper clamping plate is disposed separately from the second diaphragm. The upper clamping plate includes a fixing portion fixed to the basket, the upper clamping plate is provided with a step recessed towards the first diaphragm from one side of the upper clamping plate facing away from the first diaphragm, and the step is connected with the fixing portion.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: July 27, 2021
    Assignee: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
    Inventors: Hongjian Hu, Shuai Li
  • Patent number: 10979823
    Abstract: A sound generator is provided by the present disclosure. The sound generator includes a frame; a magnetic circuit system fixed by the frame; and a vibration system carried by the frame. The vibration system includes a diaphragm and a voice coil fixed below the diaphragm for driving the diaphragm to vibrate. The voice coil includes a pair of parallel long axis edges, a pair of parallel short axis edges connected with ends of the long axis edges. The diaphragm includes a through hole formed corresponding to the long shaft edge of the voice coil, and a glue part filled in the through hole for connecting the long shaft edge of the voice coil with the diaphragm.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: April 13, 2021
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Wei Song, Fan Zhang, Weiwei Tao
  • Patent number: 10917712
    Abstract: A speaker and earplug earphones are provided. The speaker includes a cylindrical speaker housing. A partition board arranged along a radial direction is disposed in an enclosed cavity. A first speaker and a second speaker are respectively disposed on both sides of the partition board, and each includes a magnetic circuit system and a vibrating system. A magnetic gap is disposed between the magnetic circuit system and the speaker housing, and an air pressure balance holes are formed in the partition board located at the magnetic gap. The vibrating system includes a voice coil and a vibrating diaphragm covering the end part of the speaker housing. Each earplug earphone includes an earphone front housing and an earphone back housing. The speaker is mounted in the enclosed space. Multiple front housing sound output holes is formed in the earphone front housing. An acoustic waterproof membrane is disposed between the multiple front housing sound output holes and the speaker.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: February 9, 2021
    Assignee: GOERTEK TECHNOLOGY CO., LTD.
    Inventor: Chengqian Wang
  • Patent number: 10872591
    Abstract: Embodiments provide a compensator for a loudspeaker system having a first loudspeaker group having at least one sound transducer, the first loudspeaker group being configured to generate a first sound signal based on an audio signal, the sound signal having a useful signal portion and a distortion signal portion. The compensator has a second loudspeaker group having at least one sound transducer, the second loudspeaker group being configured to generate a second sound signal based on a compensation signal, the second sound signal compensating and/or reducing the distortion signal portion when superimposed with the first sound signal.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: December 22, 2020
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Lorenz Betz, Maximilian Wolf
  • Patent number: 10856061
    Abstract: A speaker device includes a housing that has a sound guide space having a vertically flattened shape, a first speaker disposed in the housing to be oriented toward a front of the housing, and a second speaker that is disposed in the housing and is oriented upward or downward to output sound into the sound guide space positioned at an internal upper part or an internal lower part of the housing. The sound guide space opens at an opening that is formed in vertically flattened form in the housing, and the opening has a vertical height that is smaller than an aperture of the first speaker.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: December 1, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Minoru Umesako, Takuto Takizawa, Yukiharu Wakiguchi, Hiroya Morikawa
  • Patent number: 10812912
    Abstract: An improved loudspeaker is disclosed. The speaker includes at least one permanent magnet, an electromagnet and a diaphragm. The diaphragm has an inner portion (active portion) and an outer portion (stabilizing portion) that are both typically ring-shaped. The interaction between the magnets causes the inner portion to move back and forth according to the electrical signal inputted. As the inner portion moves forward, the outer portion tends to move backward relative to the inner portion. The movement of the active portion tends to produce corresponding forces on the stabilizing portion that cause the stabilizing portion to move and create sound in a symbiotic fashion. In certain embodiments, the portions move relative to each other as sound is produced so that a relatively constant volume of air is displaced on either side of the diaphragm thus minimizing acoustic distortion.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: October 20, 2020
    Assignee: Dinaburg Technology Corp.
    Inventor: Mikhail Dinaburg
  • Patent number: 10667039
    Abstract: An acoustic device includes first and second acoustic cavities which are air tight. A first passive radiator includes a first passive radiator diaphragm that has a rear surface which is exposed to the first acoustic cavity. A second passive radiator includes a first passive radiator diaphragm having a front surface which is exposed to the first acoustic cavity, and a rear surface which is exposed to the second acoustic cavity. A first electro-acoustic transducer is supported on the second passive radiator diaphragm. The first electro-acoustic transducer is arranged such that a first radiating surface of the first electro-acoustic transducer radiates acoustic energy into the first acoustic chamber and a second radiating surface of the first electro-acoustic transducer radiates acoustic energy into the second acoustic chamber.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: May 26, 2020
    Assignee: Bose Corporation
    Inventors: Roman N. Litovsky, Chester Smith Williams, Michael Tiene
  • Patent number: 10645498
    Abstract: An electrodynamic acoustic transducer (1a . . . 1c) is presented, which comprises a housing (2), a membrane (3), a coil arrangement (6a . . . 6f) attached to the membrane (3) and a magnet system (9, 10, 11). The coil arrangement (6a . . . 6f) comprises a plurality of coils (7, 8) each having two terminals (T7, T8, T7a, T8a, T7b, T8b, T78) being static in relation to the housing (2). At least one pair of coils (7, 8) has one terminal (T78) in common, whereas the remaining terminals (T7, T8, T7a, T8a, T7b, T8b) are individual terminals (T7, T8, T7a, T8a, T7b, T8b). Connecting wires (12, 13, 12a, 13a, 12b, 13b) connect the coils (7, 8) with the individual terminals (T7, T8, T7a, T8a, T7b, T8b), and a conductive layer or path (14a . . . 14g) attached to the membrane (3) electrically connects the coils (7, 8) with the common terminal (T78).
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: May 5, 2020
    Assignees: AAC TECHNOLOGIES PTE. LTD., AAC TECHNOLOGIES (NANJING) CO., LTD.
    Inventor: Friedrich Reining
  • Patent number: 10555085
    Abstract: A voice coil former including a first portion having a planar region and an out-of plane region that extends outside a plane of the planar region, and wherein a length dimension of the first portion is at least two times greater than a width dimension of the first portion. The former further including a second portion extending from the first portion in a direction perpendicular to the plane of the first portion, the second portion being integrally formed with the first portion and dimensioned to support a voice coil thereon.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: February 4, 2020
    Assignee: Apple Inc.
    Inventors: Alexander V. Salvatti, Onur I. Ilkorur
  • Patent number: 10484775
    Abstract: An earphone structure is provided, relating to the technical field of earphones. The earphone structure includes: a speaker, including a sound producing vibrating diaphragm and a sound outlet, wherein the sound producing vibrating diaphragm is used to convert an electrical signal to a sound which is output through the sound outlet; a pipe, wherein the pipe has one end provided at a side of the speaker having the sound outlet, and the other end extending along a direction away from the sound outlet, such that the sound output from the sound outlet is transmitted to an outside space. With the above provision, a problem of easy occurrence of reflection of sound waves within a cavity due to presence of the cavity between the pipe and the sound outlet in the prior art, thereby overcoming a problem of sound coloration caused by the occurrence of reflection of the sound waves.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: November 19, 2019
    Assignee: ETEN ELECTRONCIS LIMITED
    Inventor: Jia Li
  • Patent number: 10469954
    Abstract: A thin speaker with a voice coil having a damper function, includes a frame, a magnetic device, a damper voice coil and a diaphragm. The damper voice coil comprises a holding member and a conductive member. The holding member includes a holding base and two holding suspension portions formed on two ends of the holding base. The conductive member includes a conductor wound to form a first winding at one side of the holding base and a second winding at the other side of the holding base, and two conductive suspension portions formed on two ends of the conductor and located on the top of holding suspension portions. Since the damper voice coil has the functions of a damper and a voice coil, the present invention is capable of maintaining a thin design and ensuring the up and down movements of the holding base to prevent its deflection.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: November 5, 2019
    Assignee: ZYLUX ACOUSTIC CORPORATION
    Inventors: Sheng Yueh Cheng, Wang Ting Tsai, Bo Feng Chen
  • Patent number: 10405098
    Abstract: A display device includes a display module displaying an image, a vibration generating device including at least one sound generating module vibrating the display module, a rear structure disposed on a rear surface of the display module to fix the vibration generating device, and a vibration transfer member disposed between the at least one sound generating module and the display module to extend from the at least one sound generating module to an edge of the display module. Accordingly, a sound pressure level corresponding to a high frequency domain is prevented from being reduced, thereby enhancing the quality of a sound output to a region in front of a display panel.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: September 3, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: SeungHwan Yoon, KiDuk Kim, DongKyun Lim, JaiHyuk Lee
  • Patent number: 10299044
    Abstract: A stabilizer for use in stabilizing a diaphragm of an audio device, such as a microphone transducer or a speaker driver. The stabilizer is configured to be attached to the diaphragm to provide stability to the diaphragm, which may be in the form of one or more of counteraction to asymmetric movement about the center of mass of the voice coil; counteraction to rotation in a direction perpendicular to the desired axial motion of the diaphragm; and additional nonlinear stiffness for mechanical limiting of the diaphragm in the axial direction, which may assist in preventing large excursions of the diaphragm from atypical sources, such as drop, shock, etc.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: May 21, 2019
    Assignee: Shure Acquisition Holdings, Inc.
    Inventor: Roger Stephen Grinnip, III
  • Patent number: 10271129
    Abstract: An acoustic device includes first and second acoustic cavities which are air tight. A first passive radiator includes a first passive radiator diaphragm that has a rear surface which is exposed to the first acoustic cavity. A second passive radiator includes a first passive radiator diaphragm having a front surface which is exposed to the first acoustic cavity, and a rear surface which is exposed to the second acoustic cavity. A first electro-acoustic transducer is supported on the second passive radiator diaphragm. The first electro-acoustic transducer is arranged such that a first radiating surface of the first electro-acoustic transducer radiates acoustic energy into the first acoustic chamber and a second radiating surface of the first electro-acoustic transducer radiates acoustic energy into the second acoustic chamber.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: April 23, 2019
    Assignee: Bose Corporation
    Inventors: Roman N. Litovsky, Chester Smith Williams, Michael Tiene
  • Patent number: 10230416
    Abstract: A method and apparatus for carrying a portable communication device. The portable communication device includes a housing, a screen supported by the housing, and a speaker supported by the housing. A carrier releasably supports the portable communication device. The carrier includes a body having a first end, a second end opposite the first end, and a surface extending between the first and second ends. The screen of the portable communication device faces the surface of the body. The surface is spaced apart from me screen to form an acoustic tunnel between the screen and the surface. The speaker of the portable communication device directs sound into the acoustic tunnel.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: March 12, 2019
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Chi T Tran, Chung Meng Chew, Kuang Eng Lim, Ban Hin Ooi
  • Patent number: 10231057
    Abstract: [Problem] To provide a universal speaker that efficiently transmits kinetic energy that has been converted from electrical energy of an audio signal to one or more diaphragms, and enables both healthy individuals and the hard of hearing to comfortably hear as a result of higher-volume and sharp emitted-sound. [Solution] This universal speaker (10) is provided at least with a diaphragm (1) having a planar shape, a driver unit (2) for causing the diaphragm to vibrate in accordance with an inputted electrical signal, and an enclosure (3) with a hollow structure for accommodating the diaphragm and the driver unit. The enclosure has an opening (39) at one surface, and the driver unit abuts against an end edge of the diaphragm so as to drive in the same direction as the plane direction of the diaphragm and is also fixedly mounted onto the enclosure.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: March 12, 2019
    Assignee: Sound Fun Corporation
    Inventors: Kazunori Sato, Nobuhiro Miyahara, Kentaro Matsuoka
  • Patent number: 10212503
    Abstract: A acoustic device includes a supra-aural ear cup, a pinna replica at least partially enclosed by the supra-aural ear cup, wherein an inner surface of the pinna replica faces the exterior so that exterior sounds are received by the pinna replica and a microphone unit for collecting said exterior sounds, said microphone unit being configured to emit a first electric signal comprising information on the collected exterior sounds.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: February 19, 2019
    Assignee: GN Hearing A/S
    Inventors: Andrew Dittberner, Vidya Krull
  • Patent number: 10182294
    Abstract: An electroacoustic transducer is provided and includes: a diaphragm having a pair of longitudinal split tubular surfaces arranged next to each other, a valley being formed between respective side portions of the pair of longitudinal split tubular surfaces; a converter including a magnet mechanism and a voice coil configured to perform conversion between vibration of the diaphragm along a depth direction of the valley and an electric signal corresponding to the vibration; and a supporter that supports the diaphragm such that the diaphragm is vibratable along the depth direction of the valley. A tubular portion is provided at an intermediate portion of the valley to couple the diaphragm and the voice coil to each other, and the tubular portion extends in the depth direction of the valley.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: January 15, 2019
    Assignee: Yamaha Corporation
    Inventor: Akihiko Nozaki
  • Patent number: 10154338
    Abstract: In an example, a loudspeaker system includes a low frequency first transducer and an array of high frequency transducers overlapping a front face of the low frequency transducer. In an example, the transducer array has an arcuate profile, and an axis of the array is non-coaxial with a central axis of the first transducer.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: December 11, 2018
    Assignee: Core Brands, LLC
    Inventors: Michael L. Strange, Doug S. Wright, Vance Dickason
  • Patent number: 10015585
    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: October 2, 2017
    Date of Patent: July 3, 2018
    Assignees: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Shintaro Niidera, Satoshi Hachiya
  • Patent number: 9936272
    Abstract: A media system 100 for vehicle 102 having chassis 104 comprises electroacoustic transducer 114, integrated into face panel 108 of stowage bin 110 inside vehicle 102. Stowage bin 110 comprises mounting structure 112 that is stationary relative to chassis 104 of vehicle 102. Interior 130 of stowage bin 110 is accessible via face panel 108. Face panel 108 is movably coupled to mounting structure 112.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 3, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Yakentim Ibrahim, Kevin S. Callahan, Michael Alan Feinberg