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公开(公告)号：US12021490B2
公开(公告)日：2024-06-25
申请号：US18135060
申请日：2023-04-14
申请人： Logitech Europe S.A.
CPC分类号： H03F3/1855 , H04R1/04 , H04R1/2807 , H04R3/04 , H04R7/04 , H04R9/08 , H03F2200/03
摘要： A microphone system includes a microphone and a pre-amplification conditioning circuit configured within a housing and comprising a pair of matched JFETs configured in a differential pair with common-source configuration and, when biased, are operable to receive and amplify the differential microphone output signal. The microphone further includes a pair of BJTs configured as a complimentary feedback transistor pair with each of the pair of BJTs coupled in parallel to a corresponding one of the pair of matched JFETs, and a current sink coupled to the matched JFETs and corresponding emitter electrodes of the BJTs and operable to maintain a fixed total direct current through each of the matched JFETs and BJTs, which reduces the JFETs corresponding electrical load, reduces signal noise, and increases a maximum amplified microphone output signal level at the drains of the matched JFETs.
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公开(公告)号：US12010473B2
公开(公告)日：2024-06-11
申请号：US17507826
申请日：2021-10-22
申请人： Oluseyi Olaleye
发明人： Oluseyi Olaleye
CPC分类号： H04R1/083 , H04R2410/03
摘要： The present invention discloses an advance attachment for noise abatement microphone. The assembly proposes a square shaped cavity to receive the microphone assembly where the outer shape is curved. The novel feature of assembly lies in its ease of use, portability and is universal in nature.
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公开(公告)号：US11855692B2
公开(公告)日：2023-12-26
申请号：US17160676
申请日：2021-01-28
IPC分类号： H04B10/25 , H04R9/08 , H04B10/2575 , G02B6/12 , G02B6/293
CPC分类号： H04B10/2575 , G02B6/12019 , G02B6/29344 , H04R9/08 , H04B2210/006
摘要： An apparatus and method is provided to correlate radiation beams, such as RF beams, optical beams, and/or acoustic beams. A plurality of sensors are distributed according to a first pattern and disposed adjacent to a first interference region. The plurality of sensors may capture incoming radiation and convert the incoming radiation to a plurality of signals. A plurality of radiating elements are distributed according to a second pattern that differs from the first pattern and are disposed adjacent to a second interference region. A plurality of channels are connected between the sensors and the radiating elements, each channel connecting a corresponding sensor to receive a corresponding signal. Each of the radiating elements is in communication with a corresponding one of the plurality of channels to provide an outgoing radiation corresponding to the signal received by the channel. The second pattern has a relationship to the first pattern such that first and second beams of incoming radiation in the first interference region captured by the plurality of sensors are respectively mapped to corresponding first and second beams of outgoing radiation emitted by the plurality of radiating elements into the second interference region.
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公开(公告)号：US11711058B1
公开(公告)日：2023-07-25
申请号：US17589651
申请日：2022-01-31
申请人： Logitech Europe S.A.
CPC分类号： H03F3/1855 , H04R1/04 , H04R1/2807 , H04R3/04 , H04R7/04 , H04R9/08 , H03F2200/03
摘要： A microphone system includes a microphone and a pre-amplification conditioning circuit configured within a housing and comprising a pair of matched JFETs configured in a differential pair with common-source configuration and, when biased, are operable to receive and amplify the differential microphone output signal. The microphone further includes a pair of BJTs configured as a complimentary feedback transistor pair with each of the pair of BJTs coupled in parallel to a corresponding one of the pair of matched JFETs, and a current sink coupled to the matched JFETs and corresponding emitter electrodes of the BJTs and operable to maintain a fixed total direct current through each of the matched JFETs and BJTs, which reduces the JFETs corresponding electrical load, reduces signal noise, and increases a maximum amplified microphone output signal level at the drains of the matched JFETs.
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公开(公告)号：US11698292B2
公开(公告)日：2023-07-11
申请号：US17812179
申请日：2022-07-13
发明人： Wenjun Deng , Yongshuai Yuan , Wenbing Zhou , Yujia Huang
摘要： The embodiment of the present disclosure discloses a sensing device, comprising: an elastic component; a sensing cavity, wherein the elastic component forms a first sidewall of the sensing cavity; and an energy conversion component configured to obtain a sensing signal and convert the sensing signal into an electrical signal, the energy conversion component being in communication with the sensing cavity, and the sensing signal relating to a change of a volume of the sensing cavity, wherein at least one convex structure is arranged on one side of the elastic component facing toward the sensing cavity, the elastic component drives the at least one convex structure to move in response to an external signal, and the movement of the at least one convex structure changing the volume of the sensing cavity.
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公开(公告)号：US11696082B2
公开(公告)日：2023-07-04
申请号：US16938917
申请日：2020-07-25
发明人： Norman Dennis Talag , Lili Borna , Tony K. Lim
CPC分类号： H04R31/003 , H04R31/006 , H05K9/0007 , H04R2307/025
摘要： A microphone assembly comprises a substrate. An acoustic transducer is disposed on the substrate and configured to generate an electrical signal responsive to an acoustic signal. An integrated circuit is disposed on the substrate and electrically coupled to the acoustic transducer. An enclosure is disposed on the substrate, and comprises a main body, and a sidewall projecting axially from outer edges of the main body towards the substrate and contacting the substrate such that an internal volume is defined between the enclosure and the substrate. An insulating layer is insert molded on an inner surface of the enclosure, or over molded on an outer surface of the enclosure such that the insulating layer is not disposed on a portion of the sidewall proximate to the substrate.
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公开(公告)号：US11683637B2
公开(公告)日：2023-06-20
申请号：US17701129
申请日：2022-03-22
申请人： YAMAHA CORPORATION
发明人： Masao Noro
摘要： 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.
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公开(公告)号：US20230013504A1
公开(公告)日：2023-01-19
申请号：US17812179
申请日：2022-07-13
发明人： Wenjun DENG , Yongshuai YUAN , Wenbing ZHOU , Yujia HUANG
摘要： The embodiment of the present disclosure discloses a sensing device, comprising: an elastic component; a sensing cavity, wherein the elastic component forms a first sidewall of the sensing cavity; and an energy conversion component configured to obtain a sensing signal and convert the sensing signal into an electrical signal, the energy conversion component being in communication with the sensing cavity, and the sensing signal relating to a change of a volume of the sensing cavity, wherein at least one convex structure is arranged on one side of the elastic component facing toward the sensing cavity, the elastic component drives the at least one convex structure to move in response to an external signal, and the movement of the at least one convex structure changing the volume of the sensing cavity.
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公开(公告)号：US20220394393A1
公开(公告)日：2022-12-08
申请号：US17341412
申请日：2021-06-08
发明人： Yannick Pierre Kervran , Rui Zhang
摘要： A comb-like capacitive microphone includes a substrate penetrated by a cavity having an upper part provided with a step, stationary electrodes equally spaced on the step, and a diaphragm received in the step and including a vibrating portion and a connecting portion connected to the vibrating portion. Movable electrodes protrude from a periphery of the vibrating portion, and an end of the connecting portion away from the vibrating portion is connected to the substrate. The stationary electrodes are arranged in a comb shape and directly etched on the substrate, and the movable electrodes are arranged in a comb shape. The stationary electrodes are spatially separated from the movable electrodes, each stationary electrode is corresponding to each movable electrode. Such structure of the comb-like capacitive microphone offers a relatively large displacement, to decrease the acoustic noise and to offer a high sensitivity, and eventually a sound transducer with high performances.
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公开(公告)号：US20220394392A1
公开(公告)日：2022-12-08
申请号：US17642858
申请日：2020-05-21
申请人： BOCO INC. , GOLDENDANCE CO., LTD.
发明人： Hidenori Nakatani , Hataaki Sha
摘要： According to the present invention, a diaphragm is disposed on a yoke. A recess is formed in the upper surface of the diaphragm. A first metal plate is disposed in the recess. A permanent magnet is disposed on the approximate center of the first metal plate. A second metal plate is disposed on the permanent magnet. The sizes of the first metal plate and the second metal plate are greater than that of the permanent magnet. That is, with respect to the permanent magnet, the first metal plate and the second metal plate are disposed so as to protrude outward beyond the permanent magnet in the longitudinal direction.
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