公开(公告)号：US20150092975A1

公开(公告)日：2015-04-02

申请号：US14486446

申请日：2014-09-15

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R1/08 ,  F21V33/00

CPC classification number: H04R1/08 ,  F21V33/0056 ,  F21Y2115/10 ,  H04R1/028 ,  H04R2499/15

Abstract: There is provided a microphone device with which an operation state of the microphone device may be easily checked and that may effectively reduce noise to be played back, the noise being caused by vibration that has propagated through a table or the like. A microphone device is configured such that a microphone case 2 in which a microphone unit 3 for converting a speech wave into a speech signal is housed is supported by a stand arm 25 via a coupling member 11 formed of a light-transmissive elastic material, and light emitted from a light source (LED) 14 housed in the microphone case 2 or the stand arm 25 is projected to an outside through the coupling member. Control is performed such that the light source 14 is lit in an on state in which a speech signal is output from the microphone unit 3.

Abstract translation: 提供了一种麦克风装置，可以容易地检查麦克风装置的操作状态，并且可以有效地减少要播放的噪声，噪声是由通过桌子等传播的振动引起的。 麦克风装置被配置为使得容纳有用于将语音波转换成语音信号的麦克风单元3的麦克风外壳2经由由透光弹性材料形成的联接构件11由支架臂25支撑，并且 从容纳在麦克风外壳2或支架臂25中的光源（LED）14发出的光通过联接构件向外侧突出。 执行控制，使得光源14在从麦克风单元3输出语音信号的开启状态下点亮。

公开(公告)号：US20170195782A1

公开(公告)日：2017-07-06

申请号：US15388488

申请日：2016-12-22

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R1/32 ,  H04R3/00 ,  H04R23/02

CPC classification number: H04R1/326 ,  H04R3/005 ,  H04R9/048 ,  H04R19/04 ,  H04R23/02 ,  H04R2430/25

Abstract: To obtain a unidirectional microphone with high sound quality, which achieves unidirectivity while preventing deterioration in sound quality of a ribbon microphone. A unidirectional condenser microphone and bi-directional ribbon microphones are included, and the unidirectional condenser microphone and the bi-directional ribbon microphones are disposed such that a 0° direction of a sound collecting axis of the unidirectional condenser microphone accords with a 180° direction of sound collecting axes of the bi-directional ribbon microphones, and an output of the unidirectional condenser microphone is subtracted from an output of the 180° direction of the bi-directional ribbon microphones.

公开(公告)号：US20170142514A1

公开(公告)日：2017-05-18

申请号：US15195129

申请日：2016-06-28

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R1/34 ,  H04R1/08 ,  H04R1/44

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.

公开(公告)号：US20160249121A1

公开(公告)日：2016-08-25

申请号：US15009189

申请日：2016-01-28

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R1/02 ,  H04R1/32 ,  H04R19/04

CPC classification number: H04R1/028 ,  H04M3/56 ,  H04R1/326 ,  H04R19/016 ,  H04R19/04 ,  H04R27/00 ,  H04R2410/03

Abstract: A microphone device includes an audio signal output circuit that balanced-outputs, through a balanced transmission line, an audio signal output from a condenser microphone unit, a balanced output terminal including a hot terminal, a cold terminal, and a ground terminal connected to the balanced transmission line, a power supply circuit that supplies a phantom power supply to the audio output circuit from the balanced output terminal through the balanced transmission line, and a display circuit including light emitting elements that perform lighting and non-lighting according to an operation of a manual switch, and the display circuit includes constant current elements that generate a constant current through the balanced transmission line, a constant voltage element connected to the constant current elements and which generates a constant voltage, and light emitting elements connected to the constant current elements, and to which the constant voltage by the constant voltage element is applied.

Abstract translation: 麦克风装置包括音频信号输出电路，其通过平衡传输线平衡输出从电容式麦克风单元输出的音频信号，平衡输出端子，包括热端子，冷端子和连接到该端子的接地端子 平衡传输线，通过平衡传输线从平衡输出端向音频输出电路提供幻象电源的电源电路，以及包括根据操作的操作执行照明和不照明的发光元件的显示电路 手动开关，并且显示电路包括通过平衡传输线产生恒定电流的恒定电流元件，连接到恒定电流元件并产生恒定电压的恒定电压元件，以及连接到恒定电流元件的发光元件 并且由恒压元件的恒定电压 应用。

公开(公告)号：US20160100246A1

公开(公告)日：2016-04-07

申请号：US14872547

申请日：2015-10-01

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R1/26 ,  H04R1/22

CPC classification number: H04R1/222 ,  H04R1/245 ,  H04R1/326 ,  H04R1/406 ,  H04R19/04

Abstract: A unidirectional condenser microphone includes a first and second condenser elements each having a diaphragm and a fixed electrode disposed opposite the diaphragm, an insulating base having an opening at the center thereof and supporting the respective fixed electrodes of the first and second condenser elements at opposite sides of the insulating base, acoustic resistance materials covering both ends of the opening, and air chambers formed respectively between each of the fixed electrodes and the insulating base, such that respective back sides of the diaphragms of the first and the second condenser elements are acoustically in communication with each other, wherein the diaphragm of the second condenser elements is formed to be an annular-shape having a central opening, and the second condenser element has a rear acoustic terminal hole communicating with the central opening.

Abstract translation: 单向电容麦克风包括第一和第二电容器元件，每个电容器元件具有隔膜和与隔膜相对设置的固定电极，绝缘基座在其中心具有开口，并且在相对侧支撑第一和第二电容器元件的相应固定电极 绝缘基底，覆盖开口的两端的声阻材料以及分别在每个固定电极和绝缘基底之间形成的空气室，使得第一和第二电容器元件的隔膜的各自背面声学地 彼此连通，其中第二聚光器元件的隔膜形成为具有中心开口的环形，并且第二电容器元件具有与中心开口连通的后声学终端孔。

公开(公告)号：US20160037259A1

公开(公告)日：2016-02-04

申请号：US14809797

申请日：2015-07-27

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R5/027

CPC classification number: H04R5/027 ,  H04R1/326

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。

公开(公告)号：US20160021455A1

公开(公告)日：2016-01-21

申请号：US14795452

申请日：2015-07-09

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R1/32 ,  H04R1/02

CPC classification number: H04R1/326 ,  H04R1/02 ,  H04R1/40

Abstract: A variable directional microphone includes a unidirectional microphone unit having a front acoustic terminal and a rear acoustic terminal; an acoustic tube which accommodates the microphone unit therein and having a plurality of acoustic resistance openings in a circumferential wall thereof; a supporting member mounted within the acoustic tube to be movable along an axis of the acoustic tube and supporting the microphone unit, the supporting member having a predetermined acoustic resistance and allowing transmission of sound waves; and further includes a gap formed between an outer circumferential wall of the microphone unit and an inner circumferential wall of the acoustic tube for providing communication between the front acoustic terminal and the rear acoustic terminal. Directionality of the variable directional microphone changes depending on the position of the microphone unit in the acoustic tube.

Abstract translation: 可变定向麦克风包括具有前声音终端和后声学终端的单向麦克风单元; 声音管，其在其中容纳麦克风单元，并且在其周向壁中具有多个声阻开口; 支撑构件，其安装在所述声管内，以能够沿着所述声管的轴线移动并支撑所述麦克风单元，所述支撑构件具有预定的声阻并允许声波的传播; 并且还包括在所述麦克风单元的外周壁与所述声管的内周壁之间形成的间隙，用于提供所述前声学终端和所述后声学终端之间的连通。 根据声管中麦克风单元的位置，可变方向麦克风的方向性会发生变化。

公开(公告)号：US20160014491A1

公开(公告)日：2016-01-14

申请号：US14736990

申请日：2015-06-11

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R1/08

CPC classification number: H04R1/326

Abstract: A boundary microphone includes a microphone and a boundary plate on which the microphone is placed. The boundary plate includes a porous metal material of an aluminum-based metallic fiber layer clamped by an aluminum-based expanded metal and crimped thereto. The boundary plate has a characteristic of absorbing an incoming sound wave without reflecting the sound wave to the microphone, and the microphone collects a direct sound.

Abstract translation: 边界麦克风包括麦克风和放置麦克风的边界板。 边界板包括铝基金属纤维层的多孔金属材料，铝基金属纤维层由铝基多孔金属夹紧并压接在其上。 边界板具有吸收进入的声波而不将声波反射到麦克风的特征，并且麦克风收集直接的声音。

公开(公告)号：US20150358741A1

公开(公告)日：2015-12-10

申请号：US14724330

申请日：2015-05-28

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R23/00

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.

Abstract translation: 在主声压梯度型电容式麦克风单元中，通过施加到隔膜前后的声音端子的声压差驱动隔膜，容易调节隔膜的驱动力和高频带中的收音特性。 电容麦克风单元包括在隔膜的前侧向前延伸的第一管和围绕第一管布置的第二管。 在第一管或第二管的任一个的内侧形成有与隔膜的前表面连通的前声端。 在另一个管的内侧形成有从固定电极的后侧与隔膜的背面连通的后声学终端。

公开(公告)号：US20150245143A1

公开(公告)日：2015-08-27

申请号：US14592529

申请日：2015-01-08

Applicant: KABUSHIKI KAISHA AUDIO-TECHNICA

Inventor： Hiroshi AKINO

IPC: H04R9/08

CPC classification number: H04R19/016 ,  H04R3/00 ,  H04R2410/03 ,  H04R2410/07

Abstract: In a condenser microphone that has a function of attenuating a low frequency component and can effectively suppress distortion or thermal noise and external noise of a signal, an impedance converter converting a change in capacitance between a diaphragm and a fixed electrode of a condenser microphone unit into an audio signal is included. An output signal of the impedance converter is supplied to a low frequency inversion signal generation circuit including a low-pass filter and a phase inversion circuit. An output of the low frequency inversion signal generation circuit is added to the diaphragm and a low frequency signal of wind noise or vibration noise is subtracted from a microphone output. An audio signal in which the wind noise or the vibration noise has been decreased is extracted as an unbalanced output between an output terminal of the impedance converter and a reference potential point of a circuit.

Abstract translation: 在具有衰减低频分量并能够有效地抑制信号的失真或热噪声和外部噪声的功能的电容麦克风中，阻抗转换器将电容式麦克风单元的隔膜和固定电极之间的电容变化转换成 包括音频信号。 阻抗转换器的输出信号被提供给包括低通滤波器和相位反转电路的低频反转信号产生电路。 将低频反转信号发生电路的输出添加到振膜，并从麦克风输出中减去风噪声或振动噪声的低频信号。 将风噪声或振动噪声降低的音频信号提取为阻抗变换器的输出端子与电路的基准电位点之间的不平衡输出。