Electrostrictive, Magnetostrictive, Or Piezoelectric Patents (Class 381/190)
  • Patent number: 11064300
    Abstract: A display apparatus includes: a display panel configured to be rolled or unrolled, at least one vibration module on a rear surface of the display panel, the at least one vibration module being configured to: be rolled or unrolled with the display panel, and vibrate the display panel, and a partition on the rear surface of the display panel, the partition being spaced apart from and surrounding the at least one vibration module, wherein the at least one vibration module includes: a plurality of first portions having a piezoelectric property, and a plurality of second portions between the plurality of first portions, the plurality of second portions having flexibility.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: July 13, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Chiwan Kim, Kyungyeol Ryu, YuSeon Kho, YongGyoon Jang
  • Patent number: 11057716
    Abstract: A sound producing device includes a base and at least one chip disposed on the base. The chip includes at least one membrane and at least one actuator. The membrane includes a coupling plate and at least one spring structure connected to the coupling plate. The actuator is configured to receive a driving signal corresponding to an input audio signal to actuate the membrane, and the input audio signal and the driving signal have an input audio band which has an upper bound at a maximum frequency. The spring structure is situated between the coupling plate and the actuator. The membrane has a first resonance frequency higher than the maximum frequency.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: July 6, 2021
    Assignee: xMEMS Labs, Inc.
    Inventors: Chiung C. Lo, Wen-Chien Chen, Chun-I Chang, Jemm Yue Liang
  • Patent number: 11039235
    Abstract: A display device includes: a display panel including a first substrate and a light emitting element layer disposed on the first substrate; and a sound generator disposed on one surface of the first substrate, where the sound generator vibrates the display panel to output a sound. The sound generator includes: a first vibration generator which vibrates the display panel by generating a magnetic force using a first voice coil therein; and a second vibration generator including a vibration layer which contracts or expands based on a voltage applied thereto to vibrate the display panel, where the first vibration generator and the second vibration generator overlap each other in a thickness direction of the display panel.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: June 15, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Woo Im, Byeong Hee Won, Yi Joon Ahn
  • Patent number: 11006223
    Abstract: A vibration generating device includes an electroactive layer having a first surface and a second surface opposite to the first surface, and including an unevenness structure; and a first electrode and a second electrode on at least one of the first surface and the second surface of the electroactive layer, wherein one or more of the first electrode and the second electrode covers an entire surface of at least one or more of the first surface and the second surface of the electroactive layer including the unevenness structure.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: May 11, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Taeheon Kim, Chiwan Kim, Sung-Eui Shin, YongWoo Lee, Kyungyeol Ryu, YuSeon Kho
  • Patent number: 10991872
    Abstract: Provided is a bulk acoustic wave resonator (BAWR). The BAWR may include an air cavity disposed on a substrate, a bulk acoustic wave resonant unit including a piezoelectric layer, and a reflective layer to reflect a wave of a resonant frequency that is generated from the piezoelectric layer.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: April 27, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jea Shik Shin, Duck Hwan Kim, Chul Soo Kim, Ho Soo Park, Sang Uk Son, In Sang Song, Moon Chul Lee, Cui Jing
  • Patent number: 10980513
    Abstract: An ultrasonic device unit includes an ultrasonic device having a device-side terminal, a reinforcing plate having a support surface adapted to support the ultrasonic device, and a flexible printed wiring board to be connected to the ultrasonic device, the flexible printed wiring board includes a connection to be connected to the device-side terminal, a bend continuous with the connection, and extending away from the ultrasonic device, and an outer edge disposed in an end in the extending direction of the bend, and the reinforcing plate is provided with a first side parallel to a first direction crossing the extending direction, and opposed to the bend, and a projection on a reverse surface opposite the support surface, and with which the outer edge has contact when the flexible printed wiring board is curved along the first side in the bend.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: April 20, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Kazuki Yoshida
  • Patent number: 10980514
    Abstract: An ultrasonic device unit includes an ultrasonic device having a device-side terminal, a reinforcing plate having a support adapted to support the ultrasonic device, and a flexible printed wiring board to be connected to the ultrasonic device, the flexible printed wiring board is provided with a connection to be connected to the device-side terminal, and a bend continuous with the connection, extending away from the ultrasonic device, and having an end edge parallel to an extending direction, and the reinforcing plate is provided with a bending guide provided to a first side parallel to a first direction crossing the extending direction, having a circular arc curved surface convex away from the support, and opposed to the bend, and a guide surface disposed at an end in the first direction of the bending guide, and adapted to guide the end edge of the bend.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: April 20, 2021
    Inventor: Kazuki Yoshida
  • Patent number: 10972822
    Abstract: The present invention is directed to a headphone or an earpiece that includes a cushion that advantageously allows for improved comfort, sound quality, and stability in the ear. The cushion includes an inner cavity, an ear-canal aperture and a tip portion, wherein the inner cavity of the cushion accommodates a nozzle portion of a housing within the cavity, and the axis of the inner cavity is substantially parallel to the first axis, wherein the ear-canal aperture opens toward the ear canal of the user's ear when the headphone or the earpiece is worn by the user, and wherein the tip portion engages the concha of the user's ear when the headphone or the earpiece is worn by the user, and the axis of the tip portion is not parallel to the first axis. The headphone or the earpiece includes dual acoustic elements to amplify sounds in different frequency ranges.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: April 6, 2021
    Assignee: Kingston Technology Corp.
    Inventors: Peter Leekuo Chou, Baron King Lee, Wei-Min Liang, Pen Hao Ma
  • Patent number: 10972840
    Abstract: A speaker includes a circuit board, a peripheral wall, a diaphragm, at least one support member and at least one piezoelectric actuator. The peripheral wall is located on a surface of the circuit board. The diaphragm has an outer boundary attached to the peripheral wall. The diaphragm, the peripheral wall and the circuit board collectively form a chamber. The at least one support member protrudes from the surface of the circuit board and is located within the chamber. The at least one piezoelectric actuator is located on a top of the at least one support member and electrically driven to cause a vibration of the diaphragm under applied electrical bias.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 6, 2021
    Assignee: MERRY ELECTRONICS (SHENZHEN) CO., LTD.
    Inventors: Jen-Yi Chen, Yueh-Kang Lee, Kai-Yu Jiang, Chao-Sen Chang
  • Patent number: 10966029
    Abstract: The present disclosure relates to a multi-function transducer assembly and system comprising a multi-function transducer assembly, a method of manufacturing the assembly and a method of controlling the system. The assembly includes a piezoelectric transducer layer and spaced first terminals electrically attached to the piezoelectric transducer layer. The spaced first terminals are arranged for supplying an audio frequency signal to the piezoelectric transducer layer so that the assembly can function as a speaker. Second terminals are arranged for receiving at least one signal from the piezoelectric transducer layer or supplying at least one signal to the piezoelectric transducer layer. The second terminals are electrically attached to a region of the piezoelectric transducer layer between the spaced first terminals.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: March 30, 2021
    Assignee: JAGUAR LAND ROVER LIMITED
    Inventor: Ashutosh Tomar
  • Patent number: 10966006
    Abstract: In an embodiment an apparatus includes a display panel and a speaker module. The panel has a display layer for displaying images and defines a plurality of apertures penetrating through at least the display layer. The speaker module includes a diaphragm arranged substantially parallel to the display layer. Sound from the speaker diaphragm is directed outside a device through the apertures and the display layer is configured for displaying at least one virtual image in relation to generated sound waves wherein the display panel is acoustically transparent.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: March 30, 2021
    Assignee: Nokia Technologies Oy
    Inventors: Koray Ozcan, Timothy Mellow, John Samuels
  • Patent number: 10945065
    Abstract: Disclosed is a display apparatus including a display panel configured to display an image by emitting light, a rear surface structure configured to surround lateral and rear surfaces of the display panel, a vibration generating device connected with the rear surface structure and configured to vibrate the display panel, a rear sound emitting portion between the display panel and the rear surface structure, a rear sound guide between the display panel and the rear surface structure to surround the vibration generating device in a spiral shape and configured to connect with the rear sound emitting portion.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: March 9, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Kwangho Kim, YeongRak Choi, Sungtae Lee, Hogeol Lim
  • Patent number: 10911876
    Abstract: The present invention relates to a bone conduction speaker and its compound vibration device. The compound vibration device comprises a vibration conductive plate and a vibration board, the vibration conductive plate is set to be the first torus, where at least two first rods inside it converge to its center; the vibration board is set as the second torus, where at least two second rods inside it converge to its center. The vibration conductive plate is fixed with the vibration board; the first torus is fixed on a magnetic system, and the second torus comprises a fixed voice coil, which is driven by the magnetic system. The bone conduction speaker in the present invention and its compound vibration device adopt the fixed vibration conductive plate and vibration board, making the technique simpler with a lower cost; because the two adjustable parts in the compound vibration device can adjust both low frequency and high frequency area, the frequency response obtained is flatter and the sound is broader.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: February 2, 2021
    Assignee: SHENZHEN VOXTECH CO., LTD.
    Inventors: Xin Qi, Ye Yu
  • Patent number: 10908715
    Abstract: The disclosure provides an array substrate and a method of manufacturing the same, a display device and a method of detecting a touch position. In the array substrate, the plurality of X and Y sensing lines are respectively parallel to gate data lines, and a sensing thin film transistor is provided at a crossing position where the X and Y sensing lines cross. A control terminal and an output terminal of the sensing thin film transistor are coupled to the X and Y sensing lines, respectively. A piezoelectric material layer is formed between the control terminal and an input terminal of the sensing thin film transistor such that, when being pressed, the piezoelectric material layer generates deformation such that a sensing voltage is generated at the input terminal of the sensing thin film transistor with relative to the control terminal of the sensing thin film transistor.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: February 2, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Liyan Xu, Junwei Wang
  • Patent number: 10897674
    Abstract: An electroacoustic transducer includes a piezoelectric speaker and a housing. The piezoelectric speaker has: a first vibration plate with a periphery; a piezoelectric element placed on at least one face of the first vibration plate; and multiple openings that are provided around the piezoelectric element and penetrate through the first vibration plate in its thickness direction that is a first axis direction. The housing has: a supporting part that directly or indirectly supports the periphery; and a sound introduction port that faces the piezoelectric speaker in the first axis direction. The sound introduction port is provided at a position where it does not overlap, in the first axis direction, a first opening having the largest open area among the multiple openings. The electroacoustic transducer can improve the acoustic characteristics of a piezoelectric speaker.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: January 19, 2021
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Shigeo Ishii, Hiroshi Hamada, Yutaka Doshida, Takashi Tomita
  • Patent number: 10887701
    Abstract: The invention relates to audio transducers, such as loudspeaker, microphones and the like, and includes improvements in or relating to: audio transducer diaphragm structures and assemblies, audio transducer mounting systems; audio transducer diaphragm suspension systems, personal audio devices incorporating the same and any combination thereof. The embodiments of the invention include linear action and rotational action transducers. For both types of transducer, rigid and composite diaphragm constructions and unsupported diaphragm periphery designs are described. Systems and methods for mounting the transducer to a housing, such as an enclosure or baffle are also described. Furthermore, hinge systems including: rigid contact hinge systems and flexible hinge systems are also disclosed for various rotational action transducer embodiments.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: January 5, 2021
    Assignee: WING ACOUSTICS LIMITED
    Inventors: David John Palmer, Michael Ian Palmer
  • Patent number: 10859536
    Abstract: A photoacoustic flow cell, the components of which may be made well in advance of conducting photoacoustic analysis, comprising (a) a chamber structure that defines a chamber, a chamber inlet, and a chamber outlet, and (b) a glass test structure, at least a portion of which is supported by the chamber structure and at least a portion of which is located in the chamber, wherein the test structure comprises an interior surface that defines a test passageway through which samples will be flowed when conducting the photoacoustic analysis.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: December 8, 2020
    Assignee: The Curators of the University of Missouri
    Inventors: Benjamin Samuel Goldschmidt, Kyle Rood, John Andrew Viator
  • Patent number: 10812905
    Abstract: A device and a method for audio signal processing for a piezoelectric speaker for generating sound waves in the audible wavelength spectrum includes a signal input for a digital audio signal, a digital correction unit for correcting a nonlinearity of the speaker, a digital PWM generator that converts the signal corrected by the correction unit into a pulse-width modulated switch signal, a power stage controllable by the switch signal such that the speaker can be charged with a voltage for deflecting a membrane, and a closed-loop control circuit that feeds the voltage back as a feedback signal, which includes a first signal noise in the audible frequency range. The closed-loop control circuit of the device includes a noise shaping unit in that shifts a noise energy of the first signal noise outside of the audible frequency range.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: October 20, 2020
    Assignee: USOUND GMBH
    Inventors: Andrea Rusconi Clerici Beltrami, Ferruccio Bottoni, Drago Strle
  • Patent number: 10805722
    Abstract: The present technology relates to an electroacoustic transducer and an electroacoustic transducer apparatus that are compact, have good characteristics, and can retain their stable shape. The electroacoustic transducer includes: a first sheet including a sheet-like piezoelectric material and having a curved shape; and a second sheet having substantially the same shape as the first sheet and placed on the first sheet in a layered manner. The present technology can be applied to an electroacoustic transducer.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: October 13, 2020
    Assignee: Sony Corporation
    Inventors: Toshiyuki Nakagawa, Yoshio Ohashi
  • Patent number: 10770647
    Abstract: Provided are an electroacoustic conversion film web, an electroacoustic conversion film, and a method of manufacturing an electroacoustic conversion film web in which costs can be reduced by reducing the number of operations without damage to thin film electrodes, the points of electrode lead-out portions can be freely determined, and thus high productivity can be achieved. A preparation step of preparing an electrode laminated body in which a single thin film electrode and a single protective layer are laminated and a lamination step of laminating the electrode laminated body and an piezoelectric layer are included. A non-adhered portion that is not adhered to the piezoelectric layer is provided in at least one end portion of the thin film electrode in a case where the electrode laminated body and the piezoelectric layer are laminated in the lamination step.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: September 8, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Akihito Fukunaga, Tetsu Miyoshi
  • Patent number: 10757493
    Abstract: The present invention provides a speaker module comprising a module housing, and a speaker unit accommodated in the module housing, and the speaker unit separates a cavity formed by the module housing into a front acoustic cavity and a rear acoustic cavity; sound absorbing particles are filled into the rear acoustic cavity, and the sidewall of the module housing is provided with an isolation mesh cloth for isolating the sound absorbing particles and the speaker unit; the isolating mesh cloth is fixed to a first fixing frame by injection molding, and the first fixing frame is fixed in the corresponding module housing by injection molding. According to the present invention, it can prevent the problems such as leakage, deviation or breakage of the mesh during the process of fixing the isolating mesh cloth.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: August 25, 2020
    Assignee: GOERTEK INC.
    Inventors: Shuangshuang Fan, Gang Chen
  • Patent number: 10710006
    Abstract: Transducer assemblies that can be used in acoustophoretic systems are disclosed. The acoustophoretic systems including the transducer assemblies and methods of operating the acoustophoretic systems are also disclosed. The transducer assemblies include a housing, a polymeric film attached to the housing, and a piezoelectric material attached to the polymeric film. The piezoelectric material is not attached to, and does not come in direct contact with, the housing. The piezoelectric material is configured to be driven by a drive signal to create a multi-dimensional acoustic standing wave. The piezoelectric material can be attached to the polymer film by an adhesive coating on the polymer film.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: July 14, 2020
    Assignee: FloDesign Sonics, Inc.
    Inventors: Bart Lipkens, Jeffrey King, Jack Saloio, Brian McCarthy
  • Patent number: 10674281
    Abstract: Discussed are a film speaker and a display device. The film speaker includes an electroactive layer including a first surface and a second surface opposite to the first surface, and further including a plurality of concave portions; and a first electrode and a second electrode disposed on at least one of the first surface and the second surface. Therefore, the sound generated in the film speaker may be further amplified and the sound pressure level may be improved.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: June 2, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Taeheon Kim, Chiwan Kim, Sung-Eui Shin, YongWoo Lee, Kyungyeol Ryu, YuSeon Kho
  • Patent number: 10631072
    Abstract: A system includes a panel extending in a plane, an actuator attached to a surface of the panel, and an electronic control module to activate the actuator to cause vibration of the panel. The actuator includes: a plate to create a force to cause vibration of the panel to generate sound waves, having a width, WT, at a first edge; a stub extending from the first edge of the plate, having a width at a region of connection to the plate that is less than WT, the stub being attached to the surface of the panel to transfer the force received from the plate to the panel and cause the panel to vibrate; and a damper supported by a surface of the plate facing the panel coupling the plate to the panel, the damper having a having a width greater than WS.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: April 21, 2020
    Assignee: Google LLC
    Inventors: Mark William Starnes, Jonathan James Barrett
  • Patent number: 10615329
    Abstract: A piezoelectric actuator includes a suspension plate, a piezoelectric ceramic plate, an outer frame and a bracket. The suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion. The piezoelectric ceramic plate is attached on the suspension plate. When a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration. The outer frame is arranged around the suspension plate. The bracket is connected between the suspension plate and the outer frame for elastically supporting the suspension plate, and includes an intermediate part formed in a vacant space between the suspension plate and the outer frame and in parallel with the outer frame and the suspension plate, a first connecting part arranged between the intermediate part and the suspension plate, and a second connecting part arranged between the intermediate part and the outer frame.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: April 7, 2020
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
  • Patent number: 10582304
    Abstract: Diaphragm element arrangements including at least one bistable diaphragm element, which has a first stable state and a second stable state, and corresponding methods are provided. The bistable diaphragm element can be activated above a changeover threshold in order to change over between the first and the second stable state or below the changeover threshold.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: March 3, 2020
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Alfons Dehe, Manuel Dorfmeister, Ulrich Schmid, Michael Schneider
  • Patent number: 10574207
    Abstract: An improved electroacoustic transducer with an improved mode profile is provided. The transducer comprises a transversal velocity profile with a periodic structure and an edge structure flanking the periodic structure. The velocity profile also allows to suppress the SH wave mode. A dielectric material with a periodic structure contributes to the formation of the periodic structure of the velocity profile.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: February 25, 2020
    Assignee: SnapTrack, Inc.
    Inventors: Jiman Yoon, Philipp Michael J├Ąger
  • Patent number: 10567883
    Abstract: There is provided a piezo-electric actuator comprising an assembly comprising a first electrode, a second electrode, and at least one piezoelectric layer located between said first electrode and said second electrode, wherein at least one of the first electrode and the second electrode is split into at least two different sub-electrodes, wherein at least part of the assembly is configured to move along an axis perpendicular to a surface of the assembly, in response to an electrical stimulus applied to at least one of said first and second electrodes.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: February 18, 2020
    Assignee: AUDIO PIXELS LTD.
    Inventors: Shay Kaplan, Yuval Cohen, Daniel Lewin, Meir Ben Simon, Eric Andreas Haber
  • Patent number: 10560065
    Abstract: In a piezoelectric resonator manufacturing method, a sacrificial layer is formed on a back surface of a piezoelectric substrate. A support layer is formed on the back surface of the piezoelectric substrate so as to cover the sacrificial layer. A support layer as a piezoelectric resonator is formed by flattening the support layer. A recess in which the surface of the sacrificial layer is recessed with respect to the surface of the support layer is formed by abrading the surfaces of the support layer and the sacrificial layer. The recess extends to a vicinity of a boundary surface between the support layer and the sacrificial layer in the support layer. A support substrate is adhered to the surfaces of the support layer including the recess and the sacrificial layer via an adhesive material.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: February 11, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yutaka Kishimoto
  • Patent number: 10555100
    Abstract: A support can be configured for placement in the middle ear to couple a transducer to the round window, such that the transducer can be removed from the round window without damaging the round window. The support can be configured to couple the transducer to the sound window such that the support can be removed from the round window. The support may be configured to decouple the transducer from the round window such that the transducer can be removed from the middle ear of the user, for example when the support is affixed to the middle ear. Removal of the transducer from the middle ear without damaging the round window can allow safe removal of the transducer, for example when the patient wishes to receive MRI imaging.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: February 4, 2020
    Assignee: Earlens Corporation
    Inventors: Rodney C. Perkins, Sunil Puria
  • Patent number: 10555063
    Abstract: A microphone assembly includes a base that includes a first surface, a second surface and a third surface. The first surface is configured to connect the base to a mounting location in an external environment. The second surface is positioned parallel to the first surface with the third surface positioned therebetween. The third surface defines a curved shape to direct air flow that contacts the third surface in a direction away from the first surface. The microphone assembly also includes a cap disposed over and separated from the base by a gap. The cap includes a domed portion that has a convex shape that curves away from the second surface of the base. The microphone assembly also includes a microphone array that includes a plurality of microphones. The microphone array is disposed within the cap and is configured to receive acoustic signals from the external environment through the gap.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: February 4, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Bassam S. Shahmurad, Walter A. Kargus, IV, Stephen M. Sifton
  • Patent number: 10555095
    Abstract: Presented herein are stand-alone hearing aid adapters configured to enable the use of the recipient's hearing aid to detect and process ambient sound signals and to convert output signals generated by the acoustic hearing aid into input signals useable by the implantable hearing prosthesis for generation and delivery of stimulation to a recipient.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: February 4, 2020
    Assignee: Cochlear Limited
    Inventors: Alexander Case, Michael Goorevich
  • Patent number: 10529911
    Abstract: A piezoelectric actuator includes a suspension plate, a piezoelectric ceramic plate, an outer frame and a bracket. The suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion. The piezoelectric ceramic plate is attached on the suspension plate. When a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration. The outer frame is arranged around the suspension plate. The bracket is connected between the suspension plate and the outer frame for elastically supporting the suspension plate, and includes an intermediate part formed in a vacant space between the suspension plate and the outer frame and in parallel with the outer frame and the suspension plate, a first connecting part arranged between the intermediate part and the suspension plate, and a second connecting part arranged between the intermediate part and the outer frame.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: January 7, 2020
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
  • Patent number: 10524058
    Abstract: A piezoelectric microphone includes a plate, a support portion that is provided around the plate, connection portions that connect the plate and the support portion on two or more sides of the plate, and a detection portion including a lower electrode, a piezoelectric film, and an upper electrode which are stacked in this order. The detection portion is stacked on the connection portion . An inflection point of a cross-sectional deformation curve in a case in which the plate and the connection portion are deformed by sound pressure is present in a region in which the detection portion is not stacked.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: December 31, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yoshikazu Hishinuma, Takayuki Naono, Takahiro Sano
  • Patent number: 10492011
    Abstract: A non-surgical bone conductive hearing aid that provides an in-the-ear, vibration transducer that vibrates the Mastoid bone, in which the middle ear and cochlea are embedded. The bone vibration bypasses the outer and middle ear and stimulates the inner ear. The cochlear within the inner ear convert the sound to electrical impulses that travel to the brain allowing the recipient to hear naturally.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: November 26, 2019
    Inventors: Joel E. Haynes, Tolabus Stein
  • Patent number: 10469050
    Abstract: An acoustic wave device includes a piezoelectric layer, an interdigital transducer, and a slow wave propagation overlay over a portion of the interdigital transducer. By providing electrode fingers of the interdigital transducer such that a portion of the width thereof is dependent on an electrode period, a desirable wave mode may be maintained in the acoustic wave device. Further, by varying a width of the slow wave propagation overlay based on the electrode period, the desirable wave mode may be further maintained.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: November 5, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Kevin J. Gamble, Benjamin P Abbott, Alan S. Chen, Kurt G. Steiner
  • Patent number: 10412502
    Abstract: An electroacoustic transducer that can improve acoustic characteristics has a housing and a piezoelectric speaker. The piezoelectric speaker has a first vibration plate with a periphery part supported directly or indirectly on the housing, as well as a piezoelectric element placed at least on one side of the first vibration plate, and is constituted in such a way that its rigidity is asymmetric with respect to the center axis of the first vibration plate.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: September 10, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Shigeo Ishii, Takashi Tomita, Hiroshi Hamada, Yutaka Doshida
  • Patent number: 10412473
    Abstract: A grill cover that fits over or is positioned over high frequency acoustical regions and low frequency acoustical regions of a playback device. A portion of the grill cover that fits over or is positioned over a high frequency acoustical region has small area openings and a portion of the grill over a low frequency acoustical region has large area openings. In portions of the grill cover between the portions over high and low frequency acoustical regions, the openings may have an intermediate area to visually blur the differences between the portions of the grill covers. To further blur the differences, the differently sized openings may be interleaved.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: September 10, 2019
    Assignee: Sonos, Inc.
    Inventors: Youjin Nam, Nicholas Long, Tetsuro Oishi
  • Patent number: 10412511
    Abstract: Apparatus for assisting hearing, the apparatus comprising: an in-ear component for insertion into the ear canal and comprising an electromagnet; and a bone implant for mounting in the temporal bone bordering the ear canal, the bone implant comprising a housing and a magnetic mass suspended within the housing such that vibrations of the magnetic mass are mechanically coupled into the housing; wherein the in-ear component is configured to drive its electromagnet so as to, when the in-ear component is located in an ear canal with the electromagnet adjacent to the bone implant, cause the magnetic mass to vibrate within the housing.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: September 10, 2019
    Assignee: SRIS Tech Limited
    Inventor: Satheesh Sriskandarajah
  • Patent number: 10397685
    Abstract: An earphone (1) is provided that includes a first vibration plate (31) for vibration by a first piezoelectric element (32) and a cylindrically-shaped casing (2) for transmission of the vibration of the first vibration plate (31) to ear canal cartilage. The first vibration plate (31) is disposed inside the casing (2). The earphone (1) has a structure whereby an amount of sound leakage, which is due to transmission of the vibration of the first vibration plate (31) to the air, is low. The ear canal cartilage transmits sound to the eardrum of only one ear, thereby enabling localization of sound. The woofer (3) maintains sound pressure at low frequencies.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: August 27, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Kenji Ogata, Akihiko Hosaka, Yoshiyuki Watanabe
  • Patent number: 10388850
    Abstract: A piezoelectric actuator includes a suspension plate, an outer frame, at least one bracket and a piezoelectric ceramic plate. The suspension plate is a square structure. The length of the suspension plate is in a range between 4 mm and 8 mm, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion. The outer frame is arranged around the suspension plate. The at least one bracket is connected between the suspension plate and the outer frame for elastically supporting the suspension plate. The piezoelectric ceramic plate is a square structure and has a length not larger than a length of the suspension plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate. When a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: August 20, 2019
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
  • Patent number: 10388849
    Abstract: A piezoelectric actuator includes a suspension plate, an outer frame, at least one bracket and a piezoelectric ceramic plate. The suspension plate is a square structure. The length of the suspension plate is in a range between 7.5 mm and 12 mm, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion. The outer frame is arranged around the suspension plate. The at least one bracket is connected between the suspension plate and the outer frame for elastically supporting the suspension plate. The piezoelectric ceramic plate is a square structure and has a length not larger than a length of the suspension plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate. When a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: August 20, 2019
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
  • Patent number: 10356523
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for selecting distributed mode loudspeaker electrodes using an output frequency. One of the methods includes determining, for a piezoelectric transducer, a subset of frequencies, from a range of frequencies, at which to output a sound; selecting, based on the subset of frequencies, one or more electrode pairs from two or more electrode pairs included in the piezoelectric transducer to generate the sound; and providing, by a drive module connected to each of the two or more electrode pairs, current to each of the selected one or more electrode pairs to cause the piezoelectric transducer to generate a force that, when provided to a load, causes the load to generate the sound within the subset of frequencies.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 16, 2019
    Assignee: NVF Tech Ltd
    Inventor: Neil John Harris
  • Patent number: 10356532
    Abstract: A device includes an electromagnetic radiation delivery system such as a laser of light emitting diode infrared emitter configured for delivery of electromagnetic radiation within a sealed canal such as an ear canal, a fiber optic cable configured for delivering or capturing the electromagnetic radiation within the sealed canal, and a photo detector coupled to the fiber optic cable forming a portion of a voice communication system. Other embodiments are disclosed.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: July 16, 2019
    Assignee: Staton Techiya, LLC
    Inventors: Steven Goldstein, John Patrick Keady, Paul Calvert
  • Patent number: 10313801
    Abstract: Provided is a sound output apparatus including: a housing having a housing space therein; a first sound output unit provided inside the housing; and a second sound output unit provided in the housing and spaced a predetermined distance from the first sound output unit.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: June 4, 2019
    Assignee: MODA-INNOCHIPS CO., LTD.
    Inventors: Sung Cheol Park, Sang Hun Park, In Seob Jung
  • Patent number: 10312427
    Abstract: A piezoelectric device that includes: a diaphragm; a supporting part configured to support at least a portion of an end of the diaphragm; a piezoelectric film disposed along a portion supported by the supporting part on the diaphragm, a width of the film along the supported portion being narrower than a width of the portion; a lower electrode disposed at a face of the piezoelectric film on a diaphragm side; and an upper electrode disposed on a face of the piezoelectric film on an opposite side to the diaphragm.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: June 4, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Keiichi Umeda, Toshio Imanishi, Ville Kaajakari
  • Patent number: 10299043
    Abstract: The present application discloses a method for reprocessing a vibrating diaphragm, a vibrating diaphragm and a telephone receiver. The method for reprocessing a vibrating diaphragm involves the use of a vibrating diaphragm that includes a plane portion located at a center, a corrugated rim portion disposed at an edge of the plane portion, and a fixing portion connected to a periphery of the corrugated rim portion to bond a housing. The method includes, but is not limited to performing surface sputtering on part of an area of the corrugated rim portion by using a magnetron sputtering technology.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: May 21, 2019
    Assignee: Goertek Inc.
    Inventors: Xiaodong Guo, Fenglei Zu
  • Patent number: 10277986
    Abstract: The present disclosure provides a miniature speaker, including a frame, and a vibrating unit and a magnetic unit which are fixedly connected with the frame; the vibrating unit includes a voice diaphragm, a voice coil located below the voice diaphragm and configured to drive the voice diaphragm to vibrate, and an elastic supporting member located below the voice coil and configured to elastically support the voice coil; the elastic supporting member includes a diaphragm and a flexible circuit board fixedly connected below the diaphragm; the diaphragm includes a first connecting portion fixedly connected with the frame, a second connecting portion fixedly connected with the voice diaphragm and a suspension connecting the first connecting portion with the second connecting portion; the suspension is an upward protruded structure protruding toward the voice diaphragm, and the voice coil transmits an electric signal to an external circuit through the flexible circuit board.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: April 30, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventor: Wei Li
  • Patent number: 10249176
    Abstract: An alert system for providing the capability for a care giver or technologist in a medical procedure room such as the magnet room of an MRI installation to send an alert signal to personnel outside the magnet room. The system includes an alert device in the procedure room with an alert switch, and a wireless signal transmitter for generating encoded alert signals upon activation of the alert switch. An alert control system in the control room of the installation includes a signal receiver, an audio transducer and a controller, the controller responsive to alert signals received from the alert device to generate alert signals including generating audio signals from the audio transducer. In one embodiment, the alert device includes a microphone, with one-way or two-way communication between the alert device and the control system.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: April 2, 2019
    Assignee: Resonance Technology, Inc.
    Inventors: Mokhtar Ziarati, Parisa Ziarati
  • Patent number: 10225644
    Abstract: According to one embodiment, a speaker system includes a plurality of filters and a plurality of speakers. The filters filter a first signal to generate a plurality of second signals. The speakers convert the second signals into respective sound waves. Each speaker has a diaphragm and a vibration source installed in the diaphragm. Diaphragms of the speakers have at least two different shapes. Respective transfer characteristics of the diaphragms are different from each other. Each filter corresponding to the respective transfer characteristics is set such that a transfer characteristic of a synthetic sound wave of the respective sound waves approaches a target transfer characteristic.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: March 5, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tatsuhiko Goto, Akihiko Enamito, Osamu Nishimura