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1. 发明授权

US11981061B2 Preparation method of a passive horn 有权
公开(公告)号：US11981061B2
公开(公告)日：2024-05-14
申请号：US16405500
申请日：2019-05-07
申请人： Tymphany Acoustic Technology (Huizhou) Co., Ltd.
发明人： Shuhong Cen , Cheng Ho
IPC分类号： B29C45/14 , B29C35/02 , B29C45/16 , G10K13/00 , H04R7/04 , H04R31/00 , B29K69/00 , B29K83/00 , B29K705/12 , B29L31/38
CPC分类号： B29C45/1671 , B29C35/02 , B29C45/14819 , B29C45/1676 , G10K13/00 , H04R7/04 , H04R31/003 , B29C2045/1673 , B29K2069/00 , B29K2083/005 , B29K2705/12 , B29K2995/002 , B29L2031/38
摘要： A passive horn integrally formed by using liquid silicone rubber, includes a first outer casing, a second outer casing, an inner casing and an iron piece. The first outer casing includes a sealing ring, a folding ring and a vibrating membrane, and the sealing ring, the folding ring and the vibrating membrane are integrally injection molded into the first outer casing. A groove is disposed in the second outer casing, and the first outer casing is disposed in the groove. The back surface of the vibrating membrane is provided with a casing groove, which is sequentially embedded with the inner casing and the iron piece. A preparation method of a passive horn integrally formed by using liquid silicone rubber, under the condition of integrated injection molding, may improve the yield rate, ensure product quality, save assembly time and labor cost, and improve production efficiency.

2. 发明授权

US11800804B2 Variable thickness diaphragm for a wideband robust piezoelectric micromachined ultrasonic transducer (PMUT) 有权
公开(公告)号：US11800804B2
公开(公告)日：2023-10-24
申请号：US17896794
申请日：2022-08-26
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
发明人： Bernhard Boser , David Horsley , Richard Przybyla , Ofer Rozen , Stefon Shelton
IPC分类号： H01L21/34 , H10N30/085 , B06B1/06 , G10K9/122 , G10K13/00 , H10N30/50 , H10N30/082 , H10N30/30 , H10N30/853 , H10N30/20 , G10K9/12
CPC分类号： H10N30/085 , B06B1/0622 , B06B1/0666 , G10K9/121 , G10K9/122 , G10K13/00 , H10N30/082 , H10N30/2047 , H10N30/308 , H10N30/50 , H10N30/853
摘要： A diaphragm for a piezoelectric micromachined ultrasonic transducer (PMUT) is presented having resonance frequency and bandwidth characteristics which are decoupled from one another into independent variables. Portions of at least the piezoelectric material layer and backside electrode layer are removed in a selected pattern to form structures, such as ribs, in the diaphragm which retains stiffness while reducing overall mass. The patterned structure can be formed by additive, or subtractive, fabrication processes.

3. 发明申请

US20230053609A1 VARIABLE THICKNESS DIAPHRAGM FOR A WIDEBAND ROBUST PIEZOELECTRIC MICROMACHINED ULTRASONIC TRANSDUCER (PMUT) 有权
公开(公告)号：US20230053609A1
公开(公告)日：2023-02-23
申请号：US17896794
申请日：2022-08-26
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
发明人： Bernhard Boser , David Horsley , Richard Przybyla , Ofer Rozen , Stefon Shelton
IPC分类号： H01L41/335 , B06B1/06 , H01L41/09 , G10K9/122 , G10K13/00 , G10K9/12 , H01L41/083 , H01L41/113 , H01L41/187 , H01L41/332
摘要： A diaphragm for a piezoelectric micromachined ultrasonic transducer (PMUT) is presented having resonance frequency and bandwidth characteristics which are decoupled from one another into independent variables. Portions of at least the piezoelectric material layer and backside electrode layer are removed in a selected pattern to form structures, such as ribs, in the diaphragm which retains stiffness while reducing overall mass. The patterned structure can be formed by additive, or subtractive, fabrication processes.

4. 发明授权

US11521587B2 Sound transducer 有权
公开(公告)号：US11521587B2
公开(公告)日：2022-12-06
申请号：US16488030
申请日：2018-02-12
申请人： Robert Bosch GmbH
发明人： Andre Gerlach , Johannes Henneberg
IPC分类号： G10K9/22 , G10K13/00
摘要： A sound transducer has a diaphragm cup, a transducer element, and a housing, the diaphragm cup having a diaphragm and a wall. The diaphragm, the wall, and at least one housing part are formed in one piece as a fiber-plastic composite component. At least one first region of the fiber-plastic composite component is reinforced with fibers, and at least one second region of the fiber-plastic composite component is free of fibers, so that waves in the fiber-plastic composite component are at least partly reflected at a transition from the at least one first region to the at least one second region.

5. 发明申请

US20220262335A1 ULTRASONIC TRANSDUCER WITH PERFORATED BASEPLATE 有权
公开(公告)号：US20220262335A1
公开(公告)日：2022-08-18
申请号：US17738360
申请日：2022-05-06
申请人： Holosonic Research Labs
发明人： Frank Joseph Pompei , Xiang Yan
IPC分类号： G10K9/12 , G10K13/00
摘要： An ultrasonic transducer including a membrane film and a perforated baseplate. The baseplate can have a conductive surface with a plurality of perforations formed through the baseplate. The membrane film can have a conductive surface and be positioned under tension proximate to the perforations formed through the baseplate. The tension of the membrane film can be controlled to provide a restoring force to counteract the moving mass of the membrane film, and the moving mass of air in the perforations of the baseplate. By selecting the diameter(s) of the perforations of the baseplate, the thickness of the baseplate, the thickness of the membrane film, the tension of the membrane film, and/or the bending stiffness of the membrane film, a wide bandpass frequency response of the ultrasonic transducer centered at an ultrasonic frequency of interest can be obtained and tailored to a desired application.

6. 发明授权

US11417311B2 Acoustically resistive supported membrane assemblies including at least one support structure 有权
公开(公告)号：US11417311B2
公开(公告)日：2022-08-16
申请号：US17325950
申请日：2021-05-20
申请人： W. L. Gore & Associates, Inc.
发明人： Zachary E. Lampert , Wayne M. Gibbons , Yitian Zhang
IPC分类号： G10K13/00 , H04R1/08 , H04R7/04 , H04R31/00
摘要： Water impermeable, air permeable membrane assemblies are described herein. In some embodiments, the assemblies include a polymer membrane and at least one support structure. Certain assemblies are configured to provide an acoustic impedance having phase angle of +45 degrees to −45 over a frequency range of 50 to 20,000 Hz.

7. 发明申请

US20220036870A1 Dual-Tone Horn Assemblies And Methods Of Use 有权
公开(公告)号：US20220036870A1
公开(公告)日：2022-02-03
申请号：US16943589
申请日：2020-07-30
申请人： Ford Global Technologies, LLC
发明人： Marco Sanchez , Beatriz Barrios , J Elias Ruiz
IPC分类号： G10K9/02 , B60Q5/00 , G10K13/00
摘要： Dual-tone horn assemblies and methods of use are disclosed herein. An example dual scroll assembly includes a nozzle having a first portion of the nozzle has a first diameter and a second portion of the nozzle has a second diameter that has a size that is different from the first diameter, a first spiraled channel that receives air from the first portion of the nozzle. The air traveling through the first spiraled channel produces a first tone at a first frequency. A divider plate is disposed between the first spiraled channel and a second spiraled channel. The second spiraled channel receives the air from the second portion of the nozzle. The air traveling through the second spiraled channel produces a second tone at a second frequency. The first tone and the second tone when produced simultaneously create a dyad.

8. 发明申请

US20210321972A1 STETHOSCOPE ACOUSTIC TUBING THAT IS DISCONNECTABLE INTO SEPARATE SEGMENTS 有权
公开(公告)号：US20210321972A1
公开(公告)日：2021-10-21
申请号：US16851226
申请日：2020-04-17
申请人： Small Business Consulting Strategic Marketing, LLC
发明人： Sean Matula
IPC分类号： A61B7/02 , G10K13/00 , G10K11/08
摘要： A stethoscope includes a headset including a first eartube terminating in a first earpiece and a second eartube terminating in a second earpiece, and a chestpiece having a diaphragm. The stethoscope further includes flexible acoustic tubing having a first tubing segment connected to the headset and a second tubing segment connected to the chestpiece. The first tubing segment is manually disconnectable from the second tubing segment, and the first tubing segment is manually connectable to the second tubing segment to align and seal the first and second tubing segments and form an acoustic passageway extending from the chestpiece through the first and second tubing segments and the first and second eartubes to the first and second earpieces. Optionally, the flexible acoustic tubing with the disconnectable and connectable segments may be provided as a replacement component for a stethoscope.

9. 发明申请

US20210241749A1 ULTRASONIC TRANSDUCERS 有权
公开(公告)号：US20210241749A1
公开(公告)日：2021-08-05
申请号：US17237455
申请日：2021-04-22
申请人： Frank Joseph Pompei
发明人： Frank Joseph Pompei
IPC分类号： G10K13/00 , H04R19/01 , B06B1/02
摘要： Ultrasonic transducers that include membrane films and perforated baseplates. An ultrasonic transducer includes a baseplate having a conductive surface with a plurality of apertures, openings, or perforations formed thereon or therethrough, and a membrane film having a conductive surface. The membrane film is positioned adjacent to the apertures, openings, or perforations formed on or through the baseplate. By applying a voltage between the conductive surface of the membrane film and the conductive surface of the baseplate, an electrical force of attraction can be created between the membrane film and the baseplate. Varying this applied voltage can cause the membrane film to undergo vibrational motion. The dimensions corresponding to the size and/or shape of the apertures, openings, or perforations formed on or through the baseplate can be varied so that different regions of the baseplate produce different frequency responses, allowing the net bandwidth of the ultrasonic transducer to be increased.

10. 发明申请

US20210142772A1 SOUND TRANSDUCER 有权
公开(公告)号：US20210142772A1
公开(公告)日：2021-05-13
申请号：US16488030
申请日：2018-02-12
申请人： Robert Bosch GmbH
发明人： Andre Gerlach , Johannes Henneberg
IPC分类号： G10K9/22 , G10K13/00
摘要： A sound transducer has a diaphragm cup, a transducer element, and a housing, the diaphragm cup having a diaphragm and a wall. The diaphragm, the wall, and at least one housing part are formed in one piece as a fiber-plastic composite component. At least one first region of the fiber-plastic composite component is reinforced with fibers, and at least one second region of the fiber-plastic composite component is free of fibers, so that waves in the fiber-plastic composite component are at least partly reflected at a transition from the at least one first region to the at least one second region.

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