CN209693030U - Directional microphone - Google Patents
Directional microphone Download PDFInfo
- Publication number
- CN209693030U CN209693030U CN201920401749.5U CN201920401749U CN209693030U CN 209693030 U CN209693030 U CN 209693030U CN 201920401749 U CN201920401749 U CN 201920401749U CN 209693030 U CN209693030 U CN 209693030U
- Authority
- CN
- China
- Prior art keywords
- radio reception
- sound hole
- face
- reception face
- directional microphone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/342—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Telephone Set Structure (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model provides a kind of directional microphone, including shell and microphone monomer.Shell has preceding sound hole and at least one rear sound hole.Microphone monomer is configured in shell.Microphone monomer has preceding radio reception face and rear radio reception face, wherein preceding sound hole and preceding radio reception face are located at the same side, and preceding sound hole is right against preceding radio reception face.Sound hole and rear radio reception face are located at the same side afterwards, but rear sound hole offsets one from another with rear radio reception face.
Description
Technical field
The utility model relates to a kind of directional microphone.
Background technique
As science and technology is constantly progressive, personal electric product without the trend development not towards light and handy miniaturization, smartphone,
Tablet computer or laptop etc., be people's daily life it is indispensable.Whether which kind of above-mentioned electronic product, matches
The ear microphone for having microphone is also common accessory, is linked up in favor of allowing user to can be carried out long distance, most important one
Part, the voice delivery of long distance will be carried out by exactly linking up both sides, and at this point, be located at the both ends that long distance will be linked up, how
Effective radio reception is carried out by microphone respectively, and is the radio reception of low noise and high-quality, just depends on a set of superior receipts
System for electrical teaching.
Utility model content
The utility model provides a kind of directional microphone, can maintain directive property to required audio.
A kind of directional microphone of the utility model includes shell and microphone monomer.Shell is with preceding sound hole and extremely
Sound hole after one few.Microphone monomer is configured in shell.Microphone monomer has preceding radio reception face and rear radio reception face, wherein before
Sound hole and preceding radio reception face are located at the same side, and preceding sound hole is right against preceding radio reception face.Sound hole and rear radio reception face are located at same afterwards
Side, but rear sound hole offsets one from another with rear radio reception face.
In an embodiment of the utility model, above-mentioned microphone monomer has first axle, radio reception face before being orthogonal to, and
Preceding sound hole is located in first axle.
In an embodiment of the utility model, above-mentioned microphone monomer has the second axis, is orthogonal to rear radio reception face, and
Sound hole is not on the second axis afterwards.
In the directional microphone according to the utility model embodiment, shell has relative to each other the first plane and the
Two planes, preceding sound hole are located at the first plane, and rear sound hole is located at the second plane.
In the directional microphone according to the utility model embodiment, the first plane is parallel to the preceding receipts of microphone monomer
Sound face, the second plane are parallel to the rear radio reception face of microphone monomer.
In the directional microphone according to the utility model embodiment, microphone monomer has first axle and the second axis,
First axle is orthogonal to preceding radio reception face, and the second axis is orthogonal to rear radio reception face.Preceding sound hole has third axis, and rear sound hole has the 4th
Axis, first axle are arranged coaxially with third axis, and there are lateral displacements for the second axis and the 4th axis.
In the directional microphone according to the utility model embodiment, further includes filler, be set to shell and Mike
Between wind monomer.Filler makes microphone monomer only expose preceding radio reception face and rear radio reception face, and preceding radio reception face and rear radio reception is isolated
Face.
In the directional microphone according to the utility model embodiment, when reception frequency is greater than or equal to the sound of 3kHz
When sound, preceding radio reception face is consistent with the sensitivity difference of the received sound in rear radio reception face.
In the directional microphone according to the utility model embodiment, when reception frequency is greater than or equal to the sound of 5kHz
When sound, preceding radio reception face is consistent with the sensitivity difference of the received sound in rear radio reception face.
In the directional microphone according to the utility model embodiment, sensitivity difference is greater than or equal to 5dB.
In the directional microphone according to the utility model embodiment, directional microphone is single directivity
(unidirectional) microphone.
In the directional microphone according to the utility model embodiment, directional microphone is super core shape directive property
(hypercardioid) microphone.
In the directional microphone according to the utility model embodiment, preceding sound hole and sound source are located at the same side.
In the directional microphone according to the utility model embodiment, there is rear side radio reception in rear sound hole to rear radio reception face
Path, there is front side radio reception path in preceding sound hole to preceding radio reception face, and rear side radio reception path is longer than front side radio reception path.
In the directional microphone according to the utility model embodiment, shell has sound hole and a pair of of rear side after a pair
Radio reception path, the direction of each rear sound hole is consistent with the direction in rear radio reception face, but far from rear radio reception face, one of them rear side radio reception
Path connects one of them rear sound hole and radio reception face, another rear side radio reception path connects another rear sound hole and rear radio reception
Face.
Based on above-mentioned, due to the microphone structure of directional microphone, by the rear sound hole of shell and microphone monomer
Radio reception face offsets one from another afterwards, and then when external voice being made to enter shell via rear sound hole, can be by rear sound hole and rear radio reception face
Between rear side radio reception path transmitted, and because the presence of filler can be effectively isolated radio reception face before microphone monomer
With rear radio reception face, therefore can be effectively prevented from front side radio reception influence each other with rear side radio reception.
In order to make the above-mentioned features and advantages of the utility model more obvious and understandable, embodiment is hereafter specially enumerated, and is cooperated
Attached drawing is described in detail below.
Detailed description of the invention
Fig. 1 is the schematic diagram according to the directional microphone of an embodiment of the present invention；
Fig. 2 is the partial exploded view of the directional microphone of Fig. 1；
Fig. 3 shows the directional microphone of Fig. 1 with another visual angle；
Fig. 4 is the partial exploded view of the directional microphone of Fig. 3；
Fig. 5 A is the top view of the directional microphone of Fig. 3；
Fig. 5 B is cross-sectional view of the directional microphone along hatching line A-A of Fig. 5 A；
Fig. 5 C is cross-sectional view of the directional microphone along hatching line B-B of Fig. 5 A；
Fig. 6 A is the sound field pattern schematic diagram of the directional microphone of the present embodiment；
Fig. 6 B is the spectrogram of corresponding diagram 6A；
Fig. 7 A is the sound field pattern schematic diagram of the microphone of the prior art；
Fig. 7 B is the spectrogram of corresponding diagram 7A.
Description of symbols:
100: directional microphone；
110: microphone structure；
111: shell；
111a: front housing；
111b: rear shell；
112: microphone monomer；
112a: preceding radio reception face；
112b: rear radio reception face；
113: filler；
113a, 113b: channel；
120: cable；
130: connection terminal
A-A, B-B: hatching line；
A1: preceding sound hole；
A2, A3: rear sound hole；
L1: front side radio reception path；
L21, L22: rear side radio reception path；
P1: the first plane；
P2: the second plane；
Z1: first axle；
Z2: the second axis；
Z3: third axis；
Z41, Z42: the 4th axis.
Specific embodiment
With detailed reference to the exemplary embodiment of the utility model, the example of exemplary embodiment is illustrated in attached drawing
In.Whenever possible, same components label is used to indicate same or similar part in the accompanying drawings and the description.
Fig. 1 is the schematic diagram according to the directional microphone of an embodiment of the present invention.Fig. 2 is the directive property wheat of Fig. 1
The partial exploded view of gram wind.It please also refer to Fig. 1 and Fig. 2, in the present embodiment, directional microphone 100 includes microphone knot
Structure 110, cable 120 and connection terminal 130, wherein microphone structure 110 includes shell 111 and the wheat being arranged in shell 111
Gram wind monomer 112 and filler 113, and microphone monomer 112 is electrically connected to connection terminal 130 via cable 120, therefore
User can allow directional microphone 100 to be able to and connection terminal 130 to be inserted to the sound hole (not shown) of electronic device
Normal operation is to carry out radio reception.Be not limiting as the form of electronic device herein, can be earphone with sound hole or mobile phone,
The portable electronic devices such as tablet computer or communication device.
Fig. 3 shows the directional microphone of Fig. 1 with another visual angle.Fig. 4 is the confined explosion of the directional microphone of Fig. 3
Figure.It please also refer to Fig. 2 to Fig. 4, in the present embodiment, shell 110 is be combined with each other by front housing 111a and rear shell 111b
(meanwhile also in relation with to one end of cable 120).Filler 113 and microphone monomer 112 are accommodated in front housing 111a and rear shell
Between 111b, wherein filler 113 is set between shell 111 and microphone monomer 112, and reveals microphone monomer 112 only
Preceding radio reception face 112a and rear radio reception face 112b out, and preceding radio reception face 112a and rear radio reception face 112b is mutually isolated.Accordingly,
Shell 111 has sound hole A2, A3 after preceding sound hole A1 and a pair, and preceding sound hole A1 is set to the first plane of front housing 111a
P1, and preceding sound hole A1 has third axis Z3 (direction of sound hole A1 before representing), wherein it is flat to be orthogonal to first by third axis Z3
Face P1.Sound hole A2, A3 is set to the second plane parallel second plane P2 of P2, the first plane P1 of rear shell 111d afterwards, and first is flat
Face P1 is parallel to preceding radio reception face 112a, and the second plane P2 is parallel to rear radio reception face 112b, and rear sound hole A2, A3 is respectively provided with
Corresponding 4th axis Z42, Z41, the 4th axis Z42, Z41 are orthogonal to the second plane P2.Furthermore microphone monomer 112 has first
Axis Z1 and the second axis Z2, radio reception face 112a before wherein first axle Z1 is orthogonal to, the second axis Z2 are orthogonal to rear radio reception face 112b.
It is worth noting that, after microphone monomer 112 is assembled into filler 113, only revealing as shown in Fig. 2 and Fig. 4
Preceding radio reception face 112a and rear radio reception face 112b out then, then are assembled with after front housing 111a and rear shell 111b, preceding sound hole A1 with
Preceding radio reception face 112a is located at the same side, and preceding sound hole A1 is right against preceding radio reception face 112a.Relatively, rear sound hole A2, A3 with
Radio reception face 112b is located at the same side afterwards, but rear sound hole A2, A3 and rear radio reception face 112b is the state to offset one from another.
Fig. 5 A is the top view of the directional microphone of Fig. 3.Fig. 5 B is directional microphone the cuing open along hatching line A-A of Fig. 5 A
View.Fig. 5 C is cross-sectional view of the directional microphone along hatching line B-B of Fig. 5 A.It please also refer to Fig. 5 A to Fig. 5 C, further
It says, since preceding sound hole A1 and preceding radio reception face 112a are opposite to each other, namely it is in coaxial for representing first axle Z1 and third axis Z3 each other
Setting, that is, preceding sound hole A1 are on the first axle Z1 of microphone monomer 112.In addition, rear sound hole A2, A3 is substantial
Positioned at the lateral margin of rear shell 111b, and channel 113a, 113b that two for respectively corresponding filler 113 are separated from each other, therefore the 4th
Axis Z41, Z42 belong to three axis that are parallel to each other but not being overlapped, that is, rear sound hole with the second axis Z2 of microphone monomer 112 in fact
A2, A3 be not on the second axis Z2.
In this way, can learn that it has not radio reception path from the structure feature of above-mentioned microphone structure 110
With design.As shown in Fig. 5 B and Fig. 5 C, for preceding sound hole A1, the sound being incorporated into will be (straight along front side radio reception path L1
Thread path) and directly affect the preceding radio reception face 112a of microphone monomer 112.But for rear sound hole A2, A3, difference
With the rear radio reception face 112b of microphone monomer 112 there are non-directional rear side radio reception path L21, L22, and rear side radio reception path
L21, L22 are longer than front side radio reception path L1 respectively.It therefore will be respectively along rear side radio reception from the sound that rear sound hole A2, A3 enters
Path L21, L22 transmit and influence the rear radio reception face 112b of microphone monomer 112.Stated differently, since rear sound hole A2, A3 is real
Though it is consistent with the direction of rear radio reception face 112b in matter, away from each other, that is, after sound hole A2, A3 the 4th axis Z41,
There are lateral displacement d1, d2 with the second axis Z2 of rear radio reception face 112b respectively by Z42.
Fig. 6 A is the sound field pattern schematic diagram of the directional microphone of the present embodiment.Fig. 6 B is the spectrogram of corresponding diagram 6A.
Fig. 7 A is the sound field pattern schematic diagram of the microphone of the prior art.Fig. 7 B is the spectrogram of corresponding diagram 7A.Please refer to Fig. 6 A,
Fig. 6 B.In the present embodiment, directional microphone 100 is single directivity (unidirectional) microphone, and especially
Super core shape directive property (hypercardioid) microphone.When the preceding sound hole A1 in sound source and shell 111 is to be located at the same side
When, the sound field pattern schematic diagram and Fig. 6 B spectrogram of Fig. 6 A can be generated.Herein with different frequency (including 300Hz, 500Hz,
1kHz, 3kHz, 5kHz) sound for, the directional microphone of the present embodiment can generate either under which kind of frequency
Good directive property.For example, when receiving sound of the frequency more than or equal to 3kHz or 5kHz, microphone monomer 112
Preceding radio reception face 112a is consistent with the sensitivity difference of rear the received sound of radio reception face 112b, is presented on radio reception face before Fig. 6 B is
The frequency spectrum (mark is oriented to 0 degree of curve) of the received sound of 122a and the frequency spectrum (mark of rear the received sound of radio reception face 122b
It is oriented to the curve of 180 degree) it is substantially the state (such as Fig. 6 B dotted line encloses place) being parallel to each other, that is, sensitivity difference reality
It is equal to 5dB in matter.
Review Fig. 7 A and Fig. 7 B, what is presented is the microphone under the prior art, on front side of shell, rear side respectively only one
A preceding sound hole, rear sound hole, and preceding sound hole, rear sound hole are located at the preceding radio reception face of microphone monomer, rear radio reception face
Same axis.Accordingly, still there is directive property in lower frequency (300Hz, 500Hz, 1kHz), once so sound frequency is got higher, such as
Frequency 3kHz and 5kHz, sound field pattern has changed into all referring to (omnidirectional) at this time, that is, the frequency shown in Fig. 7 B
In spectrogram, in the range of 3kHz to 5kHz, preceding radio reception face and rear radio reception face receive the spectrum curve meeting of sound mutually respectively
It is overlapped (such as Fig. 7 B dotted line encloses place), this sound for representing this frequency range can not be distinguished by microphone monomer.
In conclusion in the above embodiments of the present invention, in the microphone structure of directional microphone, by shell
Rear sound hole and the rear radio reception face of microphone monomer offset one from another, and then external voice is made to enter shell via rear sound hole
When, it can be transmitted by the rear side radio reception path between rear sound hole and rear radio reception face, and because the presence of filler can be effective
The preceding radio reception face and rear radio reception face of microphone monomer is isolated in ground, therefore can be effectively prevented from front side radio reception and the mutual shadow of rear side radio reception
It rings.Furthermore rear sound hole is not directly opposite to each other with rear radio reception face, and the sound that also therefore offer enters need to be transmitted by channel can
Radio reception face after influence, and then in lower frequency range, for example, 3kHz to 5kHz or more than sound, be able to maintain and preceding radio reception face institute
Sensitivity difference between received sound, that is, it is maintained the single directivity of microphone monomer, and avoid preceding radio reception
Face can not be authenticated with sound received by rear radio reception face.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (15)
1. a kind of directional microphone characterized by comprising
Shell, the shell have preceding sound hole and at least one rear sound hole；And
Microphone monomer, the microphone monomer are configured in the shell, and the microphone monomer has preceding radio reception face with after
Radio reception face, wherein the preceding sound hole and the preceding radio reception face are located at the same side, and the preceding sound hole is right against the preceding receipts
Sound face, at least one described rear sound hole and the rear radio reception face are located at the same side, but at least one described rear sound hole and institute
Rear radio reception face is stated to offset one from another.
2. directional microphone according to claim 1, which is characterized in that the microphone monomer has first axle, institute
It states first axle and is orthogonal to the preceding radio reception face, and the preceding sound hole is located in the first axle.
3. directional microphone according to claim 1, which is characterized in that the microphone monomer has the second axis, institute
State the second axis be orthogonal to it is described after radio reception face, and at least one described rear sound hole is not on second axis.
4. directional microphone according to claim 1, which is characterized in that the shell has relative to each other first flat
Face and the second plane, the preceding sound hole are located at first plane, and it is flat that at least one described rear sound hole is located at described second
Face.
5. directional microphone according to claim 4, which is characterized in that first plane is parallel to the microphone
The preceding radio reception face of monomer, second plane are parallel to the rear radio reception face of the microphone monomer.
6. directional microphone according to claim 1, which is characterized in that the microphone monomer has first axle and the
Two axis, the first axle are orthogonal to the preceding radio reception face, second axis be orthogonal to it is described after radio reception face, and the preceding sound hole
With third axis, at least one described rear sound hole has the 4th axis, and first axle is arranged coaxially with third axis, the second axis and the
There are lateral displacements for four axis.
7. directional microphone according to claim 1, which is characterized in that it further include filler, the filler setting
Between the shell and the microphone monomer, the filler make the microphone monomer only expose the preceding radio reception face with
Radio reception face after described, and the preceding radio reception face and the rear radio reception face is isolated.
8. directional microphone according to claim 1, which is characterized in that when reception frequency is greater than or equal to the sound of 3kHz
When sound, the preceding radio reception face is consistent with the sensitivity difference of the received sound in the rear radio reception face.
9. directional microphone according to claim 1, which is characterized in that when reception frequency is greater than or equal to the sound of 5kHz
When sound, the preceding radio reception face is consistent with the sensitivity difference of the received sound in the rear radio reception face.
10. directional microphone according to claim 8 or claim 9, which is characterized in that the sensitivity difference is equal to 5dB.
11. directional microphone according to claim 1, which is characterized in that the directional microphone is single direction
Property microphone.
12. directional microphone according to claim 1, which is characterized in that the directional microphone is that super core shape refers to
Directional microphone.
13. directional microphone according to claim 1, which is characterized in that the preceding sound hole is located at same with sound source
Side.
14. directional microphone according to claim 1, which is characterized in that at least one described rear sound hole is to described
Afterwards there is rear side radio reception path in radio reception face, and the preceding sound hole to the preceding radio reception face has a front side radio reception path, and it is described after
Side radio reception path is longer than front side radio reception path.
15. directional microphone according to claim 1, which is characterized in that the shell have it is a pair of after sound hole with
A pair of of rear side radio reception path, it is each it is described after sound hole direction with it is described after radio reception face direction it is consistent, but far from receiving after described
Sound face, one of rear side radio reception path connect one of them rear sound hole and the radio reception face, another rear side radio reception path
Connect another rear sound hole and the rear radio reception face.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862723498P | 2018-08-28 | 2018-08-28 | |
| US62/723,498 | 2018-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209693030U true CN209693030U (en) | 2019-11-26 |
Family
ID=68606337
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910239549.9A Pending CN110868669A (en) | 2018-08-28 | 2019-03-27 | Directional microphone |
| CN201920401749.5U Expired - Fee Related CN209693030U (en) | 2018-08-28 | 2019-03-27 | Directional microphone |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910239549.9A Pending CN110868669A (en) | 2018-08-28 | 2019-03-27 | Directional microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110868669A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110868669A (en) * | 2018-08-28 | 2020-03-06 | 安普新股份有限公司 | Directional microphone |
| US10887686B2 (en) | 2018-08-28 | 2021-01-05 | Ampacs Corporation | Directional microphone |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT395275B (en) * | 1990-12-27 | 1992-11-10 | Akg Akustische Kino Geraete | TELEPHONE HAND APPARATUS DESIGNED AS A DIRECTIONAL MICROPHONE |
| GB2316814B (en) * | 1996-08-30 | 2001-02-28 | Nokia Mobile Phones Ltd | A radio telephone connector |
| US5878147A (en) * | 1996-12-31 | 1999-03-02 | Etymotic Research, Inc. | Directional microphone assembly |
| JP2005295278A (en) * | 2004-03-31 | 2005-10-20 | Hosiden Corp | Microphone device |
| TWI318077B (en) * | 2006-09-04 | 2009-12-01 | Fortemedia Inc | Electronic device and process for mounting microphone therein |
| CN101198235B (en) * | 2006-12-08 | 2011-05-18 | 美商富迪科技股份有限公司 | Electronic device and method for mounting microphone in the electronic device |
| TWI355206B (en) * | 2007-01-05 | 2011-12-21 | Fortemedia Inc | Device with internal uni-directional microphone |
| FR2924523A1 (en) * | 2007-12-03 | 2009-06-05 | Parrot Sa | Capsule for housing unidirectional microphone of e.g. hands free telephony device integrated autoradio in car, has cavity with volumes arranged at sides of other volume to modify microphone directivity and compensate delay, respectively |
| CN202059565U (en) * | 2011-01-14 | 2011-11-30 | 美律电子(深圳)有限公司 | Anterior pole capacitance microphone having directionality |
| CN102395066B (en) * | 2011-11-10 | 2018-05-01 | 中兴通讯股份有限公司 | A kind of microphone apparatus of remote pickup |
| US9066172B2 (en) * | 2012-09-28 | 2015-06-23 | Apple Inc. | Acoustic waveguide and computing devices using same |
| CN203761584U (en) * | 2013-12-30 | 2014-08-06 | 美律电子（惠州）有限公司 | Microphone capable of changing directivity |
| CN103888880A (en) * | 2014-03-31 | 2014-06-25 | 山东共达电声股份有限公司 | Directional MEMS microphone |
| JP6314298B2 (en) * | 2014-07-30 | 2018-04-25 | 株式会社オーディオテクニカ | Unidirectional close-talking microphone and microphone cap |
| KR101703628B1 (en) * | 2015-09-25 | 2017-02-07 | 현대자동차 주식회사 | Microphone and manufacturing method therefor |
| KR102359913B1 (en) * | 2016-12-13 | 2022-02-07 | 현대자동차 주식회사 | Microphone |
| CN110868669A (en) * | 2018-08-28 | 2020-03-06 | 安普新股份有限公司 | Directional microphone |
-
2019
- 2019-03-27 CN CN201910239549.9A patent/CN110868669A/en active Pending
- 2019-03-27 CN CN201920401749.5U patent/CN209693030U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110868669A (en) * | 2018-08-28 | 2020-03-06 | 安普新股份有限公司 | Directional microphone |
| US10887686B2 (en) | 2018-08-28 | 2021-01-05 | Ampacs Corporation | Directional microphone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110868669A (en) | 2020-03-06 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 Termination date: 20210327 |