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公开(公告)号：US09832556B2
公开(公告)日：2017-11-28
申请号：US15178728
申请日：2016-06-10
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Hiroshi Akino
IPC: H04R1/04 , H04R1/08 , H01R13/187 , H01R13/627 , H01R24/76
CPC classification number: H04R1/04 , H01R13/187 , H01R13/6277 , H01R24/76 , H04R1/08 , H04R2201/025
Abstract: There are provided a microphone stand having a connector supporting groove, and a microphone body supported by the microphone stand as a result of insertion of a connector case into the connector supporting groove. A resilient conductive cloth which comes into contact with the connector case is arranged in the connector supporting groove, with the connector case inserted in the connector supporting groove. The conductive cloth is preferably arranged in a ring shape along a lower bottom portion of the annularly formed connector supporting groove. This configuration mitigates rattling generated between the connector supporting groove and the connector case, thereby suppressing generation of a vibration noise due to microphone shaking.
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公开(公告)号：US09654892B2
公开(公告)日：2017-05-16
申请号：US15145411
申请日：2016-05-03
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Hiroshi Akino
Abstract: A condenser microphone utilizes a PLL circuit which includes a phase shift oscillator having an RC network that uses an electrostatic capacitance of the condenser microphone unit varying upon reception of a sound pressure and a resistance value of a variable resistance element; a phase detection unit that compares phases of a fixed frequency signal from a reference signal oscillator and an oscillation output signal from the phase shift oscillator and outputs a phase difference signal corresponding to a phase difference; a loop filter that extracts a control signal when receiving the phase difference signal from the phase detection unit; and a driver circuit that changes a resistance value of the variable resistance element provided in the phase shift oscillator based on the control signal obtained from the loop filter. The control signal obtained from the loop filter of the PLL circuit is used as an audio output signal.
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公开(公告)号：US09497546B2
公开(公告)日：2016-11-15
申请号：US14809797
申请日：2015-07-27
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Hiroshi Akino
Abstract: The stereo boundary microphone includes a boundary plate, a case body attached to the boundary plate and having an elongate shape including left and right grooves provided in opposite sides and extending along the longitudinal direction, first and second side walls covering the grooves included in the case body by predetermined distances to form left and right acoustic passages, and first and second microphones contained in tail end portions of the acoustic passages so as directional axes of the first and second microphones to be parallel. An opening communicating with the tail end portion of the case body is provided and services as a rear acoustic terminal to be used by both the first and second microphones. Front ends of the acoustic passages formed by the side walls serve as left and right front acoustic terminals of the first and second microphones.
Abstract translation: 立体声边界麦克风包括边界板，附着在边界板上的壳体，具有细长形状，其包括设置在相对侧并沿纵向方向延伸的左右槽，覆盖壳体中包括的凹槽的第一和第二侧壁 主体形成左声道和右声道，以及包含在声音通道的尾端部分中的第一和第二麦克风，以使得第一和第二麦克风的方向轴平行。 提供与壳体的尾端部连通的开口，并且作为第一和第二麦克风使用的作为后声学终端的服务。 由侧壁形成的声音通道的前端用作第一和第二麦克风的左右前声学终端。
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4.发明授权公开(公告)号：US09398375B2
公开(公告)日：2016-07-19
申请号：US14704476
申请日：2015-05-05
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Hiroshi Akino
CPC classification number: H04R7/16 , H04R7/12 , H04R7/22 , H04R9/025 , H04R9/04 , H04R31/00 , Y10T29/49007
Abstract: In an electrodynamic electroacoustic transducer, a diaphragm assembly including a diaphragm and a voice coil is attached to a unit housing accurately and easily. A peripheral portion of the diaphragm curves upward while forming a downward convex portion toward an end portion side thereof. In an opening edge portion of the unit housing, a support base portion contacting the downward convex portion of the diaphragm is formed and a concave portion which a peripheral end portion of the diaphragm engages with is formed in an inside surface. In the diaphragm, the downward convex portion is supported by the support base portion of the unit housing in the peripheral portion thereof, so that the peripheral end portion engages with the concave portion of the unit housing in a state in which the peripheral end portion has upward elastic force.
Abstract translation: 在电动电声换能器中，包括隔膜和音圈的隔膜组件被准确且容易地附接到单元外壳。 隔膜的周边部向上方弯曲，同时向其端部侧形成向下的凸部。 在单元壳体的开口边缘部分中，形成了与隔膜的向下凸起部分接触的支撑基部，并且在内表面中形成有隔膜的外周端部的凹部。 在隔膜中，向下的凸起部分在其周边部分由单元壳体的支撑基部支撑，使得周边端部在外周端部具有的状态下与单元壳体的凹部接合 向上弹力。
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公开(公告)号：US09277328B2
公开(公告)日：2016-03-01
申请号：US14287779
申请日：2014-05-27
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Hiroshi Akino
Abstract: A handheld condenser microphone is provided with a condenser microphone unit having two unidirectional condenser elements. A conductive fabric 221 is put between a lock ring 213 and the second condenser element 10b, when an acoustic-electric transducer 220 is fixed inside a unit case 210 by fastening force of the lock ring 213.
Abstract translation: 手持式电容麦克风设置有具有两个单向电容器元件的电容式麦克风单元。 当声电传感器220通过锁定环213的紧固力固定在单元壳体210内时，导电织物221放置在锁定环213和第二电容器元件10b之间。
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Patent Agency Ranking
公开(公告)号：US09992578B2
公开(公告)日：2018-06-05
申请号：US15385097
申请日：2016-12-20
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Tatsuya Ikeda , Hiroshi Akino
Abstract: In a unidirectional dynamic microphone unit, a cylindrical tube is provided to cover the microphone unit, a cylindrical wall of a first cylindrical portion that is included in the cylindrical tube and extends to at least the rearward is provided with a rear sound wave introducing portion weighted such that an acoustic resistance value is gradually made smaller toward the rearward side from positions of sound holes for taking in a sound wave transmitting around from the rearward side, preferably formed of a trumpet-shaped opening, and it is possible to enhance the sensibility to sound pressures without degradation of the frequency response and the directionality.
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公开(公告)号：US09877113B2
公开(公告)日：2018-01-23
申请号：US15251551
申请日：2016-08-30
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Hiroshi Akino
CPC classification number: H04R19/04 , H04R1/222 , H04R7/122 , H04R7/14 , H04R2307/025 , H04R2410/03
Abstract: A condenser microphone unit that has a capacitor element with a large effective area and a high signal-noise ratio but does not have frequency-dependence occurring with sound waves beyond the audio frequency range. A solid cylindrical fixed electrode pole is used as a fixed electrode. A diaphragm includes a rectangular synthetic resin film having a length smaller than or equal to the axis length of the fixed electrode pole, and a width equal to a circumferential length of the fixed electrode pole, the synthetic resin film including an electrode film on one face and ribs on the other face and entirely partitioned by the ribs into a plurality of diaphragm regions. The synthetic resin film is attached to an entire outer periphery of the fixed electrode pole such that the ribs are in contact with the outer periphery.
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公开(公告)号：US09788104B2
公开(公告)日：2017-10-10
申请号：US15195129
申请日：2016-06-28
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Hiroshi Akino
CPC classification number: H04R1/342 , H04R1/086 , H04R1/44 , H04R31/006 , H04R2201/029
Abstract: There is provided a boundary microphone inside which a unidirectional microphone unit is contained, the microphone including: a base plate; and a cover plate attached onto an upper face side thereof, wherein a thin and long tubular groove acting as an acoustic tube for making unidirectivity of the microphone unit a narrow directivity is formed on the base plate side, and therein, the microphone unit is contained. In order to prevent liquid from entering the tubular groove from the outside, between a peripheral edge part of the cover plate and the upper face of the base plate, a spacer that is composed of a water repellent thin film material and allows an inside of the tubular groove and outside air to communicate via acoustic resistance with a thin air layer is disposed so as to enclose an entire periphery of the tubular groove.
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公开(公告)号：US09781534B2
公开(公告)日：2017-10-03
申请号：US14851953
申请日：2015-09-11
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Hiroshi Akino
CPC classification number: H04R31/00 , H04R19/04 , H04R2201/003
Abstract: A condenser microphone unit includes a diaphragm vibrated by acoustic waves, a fixed electrode disposed to face the diaphragm, and an insulation base making contact with a rim portion of the fixed electrode to support the fixed electrode, wherein a ring-shaped protrusion is provided on a rim portion of the insulation base, the ring-shaped protrusion protruding toward the fixed electrode with a radially inward taper and having a ring-shaped distal face to oppose the rim portion of the fixed electrode, the distal face of the ring-shaped protrusion supports the rim portion of the fixed electrode, and an adhesive is provided on a tapered surface of the ring-shaped protrusion positioned between the insulation base and the fixed electrode, the adhesive having property to shrink by curing. When the adhesive is cured, contact portions of the insulation base and the fixed electrode are tightly bonded together.
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公开(公告)号：US09693151B2
公开(公告)日：2017-06-27
申请号：US14724330
申请日：2015-05-28
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Hiroshi Akino
CPC classification number: H04R19/04 , H04R1/38 , H04R19/005
Abstract: In a primary sound pressure-gradient type condenser microphone unit driving a diaphragm by difference in sound pressure applied to acoustic terminals in front and back of the diaphragm, a drive force of the diaphragm and sound collection characteristics in a high frequency band are easily adjusted. The condenser microphone unit includes a first pipe extending forward on the front side of a diaphragm and a second pipe arranged so as to surround the first pipe. A front acoustic terminal communicating with a front surface of the diaphragm is formed on an inner side of either one of the first pipe or the second pipe. A rear acoustic terminal communicating with a back surface of the diaphragm from the rear side of a fixed electrode is formed on an inner side of the other pipe.
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