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公开(公告)号：US20240322789A1
公开(公告)日：2024-09-26
申请号：US18558207
申请日：2022-05-06
Applicant: Massachusetts Institute of Technology
Inventor： David J. Perreault , Jessica Boles , Jeffrey H. Lang , Joseph Bonavia
IPC: H03H9/17
CPC classification number: H03H9/17
Abstract: Described are structures and techniques for providing high-efficiency. high-power-density piezoelectric resonators (PRs) for use in power converters. In some embodiments. a power converter can include a PR for energy transfer. where the PR substantially satisfies geometry conditions disclosed herein for achieving high-efficiency and high-power-density. The geometry conditions can be defined in terms of the converter's specified (e.g., rated) voltage and power level.
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公开(公告)号：US11190868B2
公开(公告)日：2021-11-30
申请号：US15956738
申请日：2018-04-18
Applicant: Massachusetts Institute of Technology
Inventor： Apoorva Murarka , Vladimir Bulovic , Jeffrey H. Lang
Abstract: Briefly, in accordance with one or more embodiments, a headphone device, comprises at least one ear muff comprising a structure to hold the at least one ear muff against an ear of a user, and at least one driver disposed in the at least one ear muff. An earbud comprises an earbud housing having a protrusion to fit into an external acoustic meatus or ear canal of a user, and a driver disposed in the earbud housing. The driver comprises an electrostatic acoustic transducer comprising a substrate comprising a first material to function as a first electrode, a dielectric layer coupled with the first material, wherein the dielectric layer has one or more cavities formed therein, and a membrane coupled with the dielectric layer to cover the one or more cavities and to function as a second electrode.
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公开(公告)号：US11152227B2
公开(公告)日：2021-10-19
申请号：US16107566
申请日：2018-08-21
Applicant: Massachusetts Institute of Technology
Inventor： Richard Swartwout , Farnaz Niroui , Vladimir Bulovic , Jeffrey H. Lang , Joel Jean
Abstract: A method includes encapsulating structures disposed on or over a surface of a substrate in an encapsulant. The method also includes separating the encapsulant from the substrate. An apparatus includes a composite film having structures embedded in an encapsulant. The composite film has a surface with a surface roughness of less than one nm. An apparatus includes an encapsulant film having a surface with indentations formed therein. The surface has a surface roughness apart from the indentations of less than one nm.
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公开(公告)号：US20180367884A1
公开(公告)日：2018-12-20
申请号：US15956738
申请日：2018-04-18
Applicant: Massachusetts Institute of Technology
Inventor： Apoorva Murarka , Vladimir Bulovic , Jeffrey H. Lang
Abstract: Briefly, in accordance with one or more embodiments, a headphone device, comprises at least one ear muff comprising a structure to hold the at least one ear muff against an ear of a user, and at least one driver disposed in the at least one ear muff An earbud comprises an earbud housing having a protrusion to fit into an external acoustic meatus or ear canal of a user, and a driver disposed in the earbud housing. The driver comprises an electrostatic acoustic transducer comprising a substrate comprising a first material to function as a first electrode, a dielectric layer coupled with the first material, wherein the dielectric layer has one or more cavities formed therein, and a membrane coupled with the dielectric layer to cover the one or more cavities and to function as a second electrode.
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公开(公告)号：US09991076B2
公开(公告)日：2018-06-05
申请号：US14763681
申请日：2014-01-28
Applicant: Massachusetts Institute of Technology
Inventor： Vladimir Bulovic , Jeffrey H. Lang , Hae-Seung Lee , Timothy M. Swager , Trisha L. Andrew , Matthew Eric D'Asaro , Parag Deotare , Apoorva Murarka , Farnaz Niroui , Ellen Sletten , Annie I-Jen Wang
CPC classification number: H01H59/0009 , H01H49/00 , H01L45/00 , Y10T156/10
Abstract: Electromechanical devices described herein may employ tunneling phenomena to function as low-voltage switches. Opposing electrodes may be separated by an elastically deformable layer which, in some cases, may be made up of a non-electrically conductive material. In some embodiments, the elastically deformable layer is substantially free of electrically conductive material. When a sufficient actuation voltage and/or force is applied, the electrodes are brought toward one another and, accordingly, the elastically deformable layer is compressed. Though, the elastically deformable layer prevents the electrodes from making direct contact with one another. Rather, when the electrodes are close enough to one another, a tunneling current arises therebetween. The elastically deformable layer may exhibit spring-like behavior such that, upon release of the actuation voltage and/or force, the separation distance between electrodes is restored. Thus, the electromechanical device may be actuated between open and closed switch positions.
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Patent Agency Ranking
公开(公告)号：US20240372470A1
公开(公告)日：2024-11-07
申请号：US18685983
申请日：2022-10-05
Applicant: Massachusetts Institute of Technology
Inventor： Jeffrey H. Lang , David J. Perreault , Jessica Boles , Joseph Bonavia
Abstract: According to one aspect of the present disclosure, an electrical-to-electrical power converter includes an energy storage component including a transducer material and a second material for mechanical energy storage, the second material attached to the transducer material. In some embodiments, the transducer material and the second material are both configured to store mechanical energy.
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公开(公告)号：US20240213883A1
公开(公告)日：2024-06-27
申请号：US18557172
申请日：2022-07-07
Applicant: Massachusetts Institute of Technology
Inventor： Jessica Boles , Elaine Ng , Jeffrey H. Lang , David J. Perreault
CPC classification number: H02M3/33576 , H02M3/01 , H02M3/33573
Abstract: According to one aspect of the disclosure, a converter having a first port and a second port, the converter comprises: a piezoelectric transformer (PT) having a first port and a second port; one or more first switches configured to operate in accordance with a first switching sub-sequence to transfer energy from the first port of the converter to the first port of the PT, the first switching sub-sequence having at least six (6) stages; and one or more second switches configured to operate in accordance with a second switching sub-sequence to transfer energy from the second port of the PT to the second port of the converter.
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8.发明公开公开(公告)号：US20230247376A1
公开(公告)日：2023-08-03
申请号：US18104518
申请日：2023-02-01
Applicant: Massachusetts Institute of Technology , Massachusetts Eye and Ear Infirmary , The Trustees of Columbia University in the City of New York
Inventor： Jeffrey H. Lang , Aaron J. Yeiser , Hideko Heidi Nakajima , Ioannis Kymissis , Elizabeth Olson , Christopher I. McHugh , Lukas Graf
CPC classification number: H04R25/606 , H04R17/00 , H05K1/189 , H04R25/609 , H04R2225/57
Abstract: A piezoelectric sensor and amplifier for use with an auditory aid device are disclosed. The piezoelectric sensor includes a top sensor and a bottom sensor disposed on opposite surfaces of a flex printed circuit board. The top and bottom sensors are made of a piezoelectric material, such as PVDF. Further, the piezoelectric sensor is adapted to be implanted into a subject's ear, where the piezoelectric sensor is cantilevered with the free, or distal end, touching the umbo. The proximal end is held in place by a support that is affixed to the ear. Additionally, the piezoelectric sensor is shaped so that the width of the distal end is less than the width at the proximal end. Further, the piezoelectric sensor generates differential signals, which are then amplified using a differential amplifier circuit.
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9.发明授权System and method for providing electromagnetic imaging through magnetoquasistatic sensing 有权通过磁静电感测提供电磁成像的系统和方法公开(公告)号：US08742770B2
公开(公告)日：2014-06-03
申请号：US13912374
申请日：2013-06-07
Applicant: Massachusetts Institute of Technology
Inventor： David L. Trumper , Benjamin Louis Cannon , Jeffrey H. Lang , Markus Zahn
IPC: G01B7/00
Abstract: A system for providing electromagnetic imaging through magnetoquasistatic sensing contains an electromagnetic sensor for imaging a sample. The electromagnetic sensor contains drive/sense electronics and a pixelated sensor array having an array of inductive loops that source magnetic fields that interact with the sample, wherein the inductive loops are individually drivable by the drive/sense electronics in a coordinated manner to establish a desired temporal and spatial pattern in which electrical properties of the inductive loops are used to generate an image. Other components of the system include a precision motion controller, sensor head and associated electronics, and a computer for performing data acquisition and signal inversion.
Abstract translation: 用于通过磁静电检测提供电磁成像的系统包含用于对样品进行成像的电磁传感器。 电磁传感器包含驱动/感测电子器件和具有感应回路阵列的像素化传感器阵列，其感应回路源于与样品相互作用的磁场，其中感应回路可由驱动/感测电子器件以协调的方式独立地驱动，以建立所需的 时间和空间模式，其中感应回路的电气特性用于产生图像。 该系统的其他部件包括精密运动控制器，传感头和相关的电子设备，以及用于执行数据采集和信号反转的计算机。
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10.发明申请SYSTEM AND METHOD FOR PROVIDING ELECTROMAGNETIC IMAGING THROUGH MAGNETOQUASISTATIC SENSING 有权通过磁感测传感器提供电磁成像的系统和方法公开(公告)号：US20130271123A1
公开(公告)日：2013-10-17
申请号：US13912374
申请日：2013-06-07
Applicant: Massachusetts Institute of Technology
Inventor： David L. Trumper , Benjamin Louis Cannon , Jeffrey H. Lang , Markus Zahn
IPC: G01N27/72
Abstract: A system for providing electromagnetic imaging through magnetoquasistatic sensing contains an electromagnetic sensor for imaging a sample. The electromagnetic sensor contains drive/sense electronics and a pixelated sensor array having an array of inductive loops that source magnetic fields that interact with the sample, wherein the inductive loops are individually drivable by the drive/sense electronics in a coordinated manner to establish a desired temporal and spatial pattern in which electrical properties of the inductive loops are used to generate an image. Other components of the system include a precision motion controller, sensor head and associated electronics, and a computer for performing data acquisition and signal inversion.
Abstract translation: 用于通过磁静电检测提供电磁成像的系统包含用于对样品进行成像的电磁传感器。 电磁传感器包含驱动/感测电子器件和具有感应回路阵列的像素化传感器阵列，其感应回路源于与样品相互作用的磁场，其中感应回路可以由驱动/感测电子器件以协调的方式单独驱动以建立所需的 时间和空间模式，其中感应回路的电气特性用于产生图像。 该系统的其他部件包括精密运动控制器，传感头和相关的电子设备，以及用于执行数据采集和信号反转的计算机。
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