-
公开(公告)号：US12126958B2
公开(公告)日：2024-10-22
申请号：US18444898
申请日：2024-02-19
申请人： ClearOne, Inc.
IPC分类号： H04R1/40 , G10L21/0208 , G10L21/0232 , H04R1/08 , H04R1/28 , H04R3/00 , H04R3/04 , H04R17/02 , H04R29/00 , H04R31/00
CPC分类号： H04R1/406 , G10L21/0232 , H04R1/08 , H04R1/2876 , H04R3/005 , H04R3/04 , H04R17/02 , H04R29/005 , H04R31/006 , G10L2021/02082 , H04R2201/021 , H04R2420/07 , H04R2430/21 , H04R2430/23
摘要： This disclosure describes an apparatus and method of an embodiment of an invention that is a ceiling tile microphone that includes: a plurality of microphones coupled together as a microphone array used for beamforming where the plurality of microphones are positioned at predetermined locations and produce audio signals to be used to form a directional pickup pattern; a single ceiling tile with an outer surface on the front side of the ceiling tile where the outer surface is acoustically transparent, the microphone array couples to the back side of the single ceiling tile and combines with the single ceiling tile as a single unit; a housing that encloses signal processing circuitry and couples to the back side of the single unit; where the single unit is mountable on the ceiling using mounting accessories; where all or part of the housing is in the ceiling space above the plane of the ceiling; where the single unit further includes beamforming.
-
公开(公告)号：US12101601B2
公开(公告)日：2024-09-24
申请号：US17929071
申请日：2022-09-01
IPC分类号： H04R17/02
CPC分类号： H04R17/02 , H04R2201/003
摘要： A microelectromechanical system microphone includes a piezoelectric diaphragm, upper inner electrodes and upper outer electrodes disposed on an upper surface of the diaphragm, and lower inner electrodes and lower outer electrodes disposed on a lower surface of the diaphragm. The diaphragm is divided into a plurality of sectors, a first of the sectors including an inner and an outer upper electrode physically disconnected from an inner and an outer upper electrode on a second sector adjacent to the first sector, and an inner and an outer lower electrode physically disconnected from an inner and an outer lower electrode on the second sector. A first via extends between and electrically couples the upper and lower inner electrodes of the first sector and a first bond pad. A second via extends between and electrically couples the upper and lower outer electrodes of the second sector and a second bond pad.
-
公开(公告)号：US12038541B2
公开(公告)日：2024-07-16
申请号：US17650206
申请日：2022-02-07
申请人： DENSO CORPORATION
发明人： Kensuke Kobayashi , Masayoshi Satake , Dai Kondo
IPC分类号： G01S7/52 , G01S7/521 , G01S15/931 , H04R17/02
CPC分类号： G01S7/52004 , G01S7/521 , G01S15/931 , H04R17/02 , G01S2007/52009
摘要： An ultrasonic sensor includes an adhesion sensor including a variable capacitance and a fixed capacitance. The variable capacitance includes a sensor electrode provided on a first surface of a bottom having a microphone installed thereon and a capacitance value thereof changes in accordance with adhesion of foreign matter on the first surface. The fixed capacitance includes a first electrode connected to the sensor electrode, and a second electrode provided on a member different from a microphone housing and disposed facing the first electrode. The adhesion sensor further includes an adhesion detecting section that is connected to the sensor electrode via the fixed capacitance and detects adhesion of foreign matter to the first surface by supplying an alternating-current signal to the fixed capacitance and the variable capacitance.
-
公开(公告)号：US12029132B2
公开(公告)日：2024-07-02
申请号：US18175460
申请日：2023-02-27
申请人： CTRL Systems Inc.
摘要： A contact sensor for the repeatable detection of small, high frequency mechanical vibrations in external systems is presented herein. The sensor includes a metal housing with an attachment device at one end and an output at the other end. Inside the metal housing is a core assembly that includes a piezo transducer assembly suspended or isolated between an actuator and a biasing device. The actuator may be in the form of a ceramic sphere that sits at least partially within a recess on the inside of the housing and is in physical contact with the piezo transducer assembly. The biasing device may be in the form of a spring that causes the piezo transducer assembly to be pressed against the actuator at a contestant and known amount of tension.
-
公开(公告)号：US11979713B2
公开(公告)日：2024-05-07
申请号：US17853979
申请日：2022-06-30
发明人： Seiji Umezawa , Matti Liukku , Ville-Pekka Rytkönen , Anssi Blomqvist , Shinsuke Ikeuchi , Fumiya Kurokawa , Masayuki Suzuki
IPC分类号： H04R17/02 , H10N30/853
CPC分类号： H04R17/02 , H10N30/8542
摘要： A piezoelectric device includes a connecting section connecting a pair of beam sections adjacent to each other. The connecting section is connected to one of the pair of beam sections at a first end portion. The connecting section is connected to another of the pair of beam sections at a second end portion. The second end portion faces the first end portion in a direction in which the pair of beam sections are aligned. A second coupling portion is located along a first coupling portion. The connecting section includes only one first end portion. The connecting section includes only one second end portion. Each of the first end portion and the second end portion is closer to a tip end portion than to a fixed end portion of each of the pair of beam sections.
-
公开(公告)号：US11979712B2
公开(公告)日：2024-05-07
申请号：US17810359
申请日：2022-07-01
发明人： You Qian , Rakesh Kumar , Guofeng Chen
IPC分类号： H04R17/02
CPC分类号： H04R17/02 , H04R2201/003
摘要： A piezoelectric microelectromechanical system microphone comprises a frame, a film of piezoelectric material including slits defining a plurality of independently displaceable piezoelectric elements within an area defined by a perimeter of the frame, bases of the plurality of piezoelectric elements mechanically secured to the frame, tips of the plurality of piezoelectric elements being free to be displaced in a direction perpendicular to a plane defined by the frame responsive to impingement of sound waves on the plurality of piezoelectric elements, and edge extensions extending from edges of the plurality of piezoelectric elements in the direction perpendicular to the plane defined by the frame to reduce a 3 dB roll-off frequency of the piezoelectric microelectromechanical system microphone.
-
公开(公告)号：US11972772B2
公开(公告)日：2024-04-30
申请号：US17349605
申请日：2021-06-16
发明人： Ryan Margoles , Sean Fendt , Bryan Loughry , Brett Jurgens
摘要： A system is disclosed for detecting and correlating percussive sounds with previously identified spectral signatures of a plurality of events so as to notify a user of an occurrence of a particular event. The system may include a sensor component which includes a piezoelectric transducer at a periphery of the sensor component for coupling with a surface and converting percussive sounds from the surface into an electrical signal. The sensor component may also include a local processor configured to produce a data signal based on the electrical signal, and a communication device for sending the data signal to a remote processor. The system may also include a remote processor configured to receive the data signal and compare the data signal to at least one reference signal and send a notification to a user based at least in part on the data signal correlating to at least one reference signal.
-
公开(公告)号：US11955993B2
公开(公告)日：2024-04-09
申请号：US17114087
申请日：2020-12-07
申请人： INVENSENSE, INC.
发明人： Michael Perrott
IPC分类号： H03M3/00 , G06F1/3234 , G06F1/324 , H04R17/02 , H04W52/02
摘要： An audio activity detector device is disclosed. The audio activity detector device comprises a closed loop feedback regulating circuit that supplies an input signal representative of a time-varying voltage signal to a quantizer circuit, wherein the quantizer circuit, as a function of the input signal, converts the input signal to a quantizer discrete-time signal; a first circuit that, as a function of the discrete-time signal, determines a key quantizer statistic value for the quantizer discrete-time signal; and a second circuit that, as a function of the key quantizer statistic value, determines a signal statistic value for the input signal and a gain control value.
-
公开(公告)号：US20240098426A1
公开(公告)日：2024-03-21
申请号：US18370017
申请日：2023-09-19
IPC分类号： H04R17/02 , H10N30/067 , H10N30/074
CPC分类号： H04R17/02 , H10N30/067 , H10N30/074 , H04R2201/003 , H04R2499/11
摘要： A piezoelectric microelectromechanical system microphone has a piezoelectric sensor layer with at least two sensing electrodes and at least one piezoelectric layer. Each piezoelectric layer can deform and generate an electrical potential responsive to impingement of sound waves on the piezoelectric layer. The sensing electrodes and the at least one piezoelectric layer form a stacked electrode structure. Each sensing electrode is disposed on or below a corresponding piezoelectric layer and senses the generated electrical potential. At least one of the sensing electrodes can include first corrugations which are configured such to release residual stress and to improve sensitivity of the microelectromechanical system microphone.
-
公开(公告)号：US11924608B2
公开(公告)日：2024-03-05
申请号：US17816013
申请日：2022-07-29
发明人： Wenbing Zhou , Yongshuai Yuan , Wenjun Deng , Yujia Huang , Xin Qi , Fengyun Liao
CPC分类号： H04R1/46 , H04R17/025 , H04R17/10
摘要： The present disclosure provides a microphone, comprising a shell structure, a vibration pickup assembly, a vibration pickup assembly, wherein the vibration pickup assembly is accommodated in the shell structure and generates vibration in response to an external sound signal transmitted to the shell structure, and at least two acoustoelectric conversion elements configured to respectively receive the vibration of the vibration pickup assembly to generate an electrical signal, wherein the at least two acoustoelectric conversion elements have different frequency responses to the vibration of the vibration pickup assembly.
-
-
-
-
-
-
-
-
-
搜索结果
985 条记录 (耗时 0.035 秒)
