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公开(公告)号：US10249287B2
公开(公告)日：2019-04-02
申请号：US15952779
申请日：2018-04-13
Applicant: Kabushiki Kaisha Audio-Technica
Inventor： Koji Otsuka , Yumi Shimazaki , Daisuke Yoneyama
IPC: H04R1/10 , H04R5/027 , G10K11/178
Abstract: A headphone includes a feedback microphone that receives a front air chamber sound including an external sound, the feedback microphone being provided on a front air chamber side, a driver unit that emits a noise-canceling sound into the front air chamber, the noise-canceling sound canceling at least a part of the sound included in the front air chamber sound received by the feedback microphone, a balanced microphone that receives the noise-canceling sound emitted from the driver unit, the balanced microphone being provided in a region on a side of the driver unit opposite the front air chamber, and a sound generating part that generates the noise-canceling sound by adding a signal based on the noise-canceling sound received by the balanced microphone to a signal based on the front air chamber sound received by the feedback microphone.
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公开(公告)号：US09848256B2
公开(公告)日：2017-12-19
申请号：US15252291
申请日：2016-08-31
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Takashi Murata
CPC classification number: H04R1/08 , F16B2/005 , F16B2/065 , F16M13/022 , G10D13/02 , G10G7/00 , H04R1/02
Abstract: A holder attachment for a drum secures a component to a drum, adds no excess load on the rim of the drum, and reduces effects on the tension applied to the drum head. The holder attachment for the drum includes a holding part configured to hold a component to be attached to the drum, and an attaching unit to be attached to the tension bolt of the drum. The holding part is connected to the attaching unit.
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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：US09749765B2
公开(公告)日：2017-08-29
申请号：US15295461
申请日：2016-10-17
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Masaki Shiotani
IPC: H04R29/00
CPC classification number: H04R29/004 , H04R3/007 , H04R29/008 , H04R2420/07 , H04R2430/01
Abstract: In a wireless receiver having a plurality of antennas for wireless microphones, variation in received signal strength from the plurality of antennas is eliminated when displayed on an indicator.The receiver includes a plurality of receiving circuits respectively corresponding to the plurality of antennas outputs a received signal strength as a detection voltage received by each of the antennas, an indicator that displays the received signal strength by the number of lighting segments, a lookup table in which a correspondence relation between a value of the detection voltage and the number of lighting segments of the indicator is set for each of the receiving circuits, and a display unit that refers to the lookup table based on the value of the detection voltage output from the plurality of receiving circuits and displays a level signal based on the number of lighting segments of the indicator set in the lookup table.
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公开(公告)号：US09712903B2
公开(公告)日：2017-07-18
申请号：US14920177
申请日：2015-10-22
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Tatsuya Ikeda
Abstract: A microphone holder holds a microphone in which an upper surface and a lower surface of a step portion are formed on an outer surface of a housing, and the microphone holder includes: a holder which is formed in a cylindrical shape having openings on upper and lower sides and in which a plurality of through passages penetrating a wall of the cylindrical shaped body is provided; a sliding portion provided movably in a circumferential direction along the openings of the holder; a lock ring configured to cover the through passage formed to the holder, from an outer side by a lock plate extending from the sliding portion; and a contact member which is movably held in the through passage and can contact on an upper surface side of the step portion of the microphone.
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Patent Agency Ranking
公开(公告)号：US20170188125A1
公开(公告)日：2017-06-29
申请号：US15384921
申请日：2016-12-20
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Hiroshi AKINO
CPC classification number: H04R1/083 , H04R1/04 , H04R1/086 , H04R1/30 , H04R1/326 , H04R1/342 , H04R2201/029 , H04R2410/07
Abstract: To prevent penetration of water into a microphone unit side even if the rain falls on a cylindrical acoustic tube in a narrow directional microphone using the acoustic tube. The narrow directional microphone includes a cylindrical acoustic tube base portion, the acoustic tube base portion includes at least one slit-like opening extending along a longitudinal direction of the acoustic tube base portion, a plurality of short fibers are implanted in an outer peripheral surface of the acoustic tube base portion and base portion edge surfaces that form the opening, and the opening is covered with the short fibers.
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公开(公告)号：US20170180871A1
公开(公告)日：2017-06-22
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：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：US20170134840A1
公开(公告)日：2017-05-11
申请号：US15337015
申请日：2016-10-28
Applicant: Kabushiki Kaisha Audio-Technica
Inventor： Hiroaki FURUYA
CPC classification number: H04R1/04 , F21V19/0055 , F21V33/0056 , G02B6/0005 , H04R1/083
Abstract: A tubular microphone case having conductivity, a circuit board on which a circuit is configured, the circuit being used for an operation of a microphone unit that converts an audio signal into an electrical signal, a light source that is accommodated in a position close to a first end of the microphone case and emits light, a light source mounting board on which the light source is placed, a holding member that has conductivity, holds the light source mounting board and the circuit board, and is fixed to the microphone case, and a light guide member including a protrusion, and having an optically transmissive property are included, and the holding member includes a light source mounting board accommodating portion that accommodates the light source mounting board, a circuit board accommodating portion that accommodates the circuit board, and a hole that can accept the protrusion.
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公开(公告)号：US09497548B2
公开(公告)日：2016-11-15
申请号：US14958242
申请日：2015-12-03
Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA
Inventor： Mitsuo Miyata
CPC classification number: H04R9/12 , H04R9/025 , H04R9/16 , H04R11/08 , H04R11/12 , H04R17/08 , H04R19/10
Abstract: Provided are a vibration unit which includes a pair of right and left coils that vibrate in response to vibration of a stylus attached to a cantilever and a magnetic circuit which includes a magnet and a pair of yokes and forms a magnetic path. The coils to be disposed in a gap between the pair of yokes are flat coils having perfect circular shapes, and V-shaped notches are formed on opposing surfaces, with the coils interposed therebetween, of the pair of yokes 4. An intersection angle of the V-shaped notch is set to be an angle to allow channel separation between right and left output signals to be obtained by the pair of coils to be equal to or larger than 20 db.
Abstract translation: 提供了一种振动单元，其包括响应于连接到悬臂的触针的振动而振动的一对左右线圈和包括磁体和一对磁轭并形成磁路的磁路。 设置在一对轭之间的间隙中的线圈是具有正圆形状的扁平线圈，并且在一对轭体4之间的相对表面上形成有V形凹口，并且， V形槽口被设定为一个角度，以允许由一对线圈获得的左右输出信号之间的通道间隔等于或大于20db。
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