CN203446026U - Stereo array-type micro electromechanical system microphone assembly - Google Patents
Stereo array-type micro electromechanical system microphone assembly Download PDFInfo
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- CN203446026U CN203446026U CN201320460044.3U CN201320460044U CN203446026U CN 203446026 U CN203446026 U CN 203446026U CN 201320460044 U CN201320460044 U CN 201320460044U CN 203446026 U CN203446026 U CN 203446026U
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Abstract
A stereo array-type micro electromechanical system microphone assembly is provided. The stereo array-type micro electromechanical system microphone assembly comprises is used for receiving sound. The stereo array-type micro electromechanical system microphone assembly comprises a sound receiving part and a sound receiving orientation construction part; the sound receiving part comprises at least three micro electromechanical system microphones which are arranged at intervals and receive the sound and output electrical signals respectively; and the sound receiving orientation construction part is eclectically connected with the sound receiving part and receives the electrical signals and converts the electrical signals into first orientation audios and second orientation audios and outputs the first orientation audios and the second orientation audios, wherein the first orientation audios and the second orientation audios form sound receiving main axes having different orientations. By means of the above technical scheme, the stereo array-type micro electromechanical system microphone assembly can have a two-channel stereo sound receiving effect; and the size of the stereo array-type micro electromechanical system microphone assembly is greatly reduced compared with an existing stereo microphone assembly.
Description
Technical field
The utility model relates to a kind of Array Microphone, relates in particular to a kind of stereo array micro-electro-mechanical microphone.
Background technology
Along with scientific and technological development, make suitable universal of the consumer electronic product of mobile phone, computer and various portables, and almost every kind of consumer electronic product there is the function of radio reception.
And the microphone that consumer electronic product is used mostly at present is electret condenser microphone, it similarly is for example a kind of electret condenser microphone that TaiWan, China patent of invention discloses for No. I268116, it comprises that a shell, is placed in vibrating membrane, first and second voice entry port and the sound-resistance material in this shell, and this sound-resistance material is placed in the sound rail in this shell and between the second ingress port and vibrating membrane.This acoustic resistance can further be coupled to an amplifier being placed in this shell by a rear plate electric power that is coupled to vibrating membrane.But because this kind of electret condenser microphone needs to use huge cavity to carry out radio reception in mechanism design, moreover, the volume that is limited to consumer electronic product is light, thin, short, littleization gradually, make the limited space that can utilize, so that the radio reception effect having, be mostly monophony, if want to have the radio reception effect of Three-dimensional dual-track, need external stereophony microphone (Stereo microphone) separately.
Existing stereophony microphone, for example U.S.'s patent of invention discloses described in No. US20120230498, and the aluminium band type microphone that it discloses the stereo radio reception of a kind of tool comprises on the horizontal plane of four aluminium strip radio reception cell layouts on a circle.This aluminium strip radio reception unit has double directing property (Bi-directional), and what along the surrounding of this circle, replace is allocated in a R channel and L channel, reaches accordingly the effect of Three-dimensional dual-track radio reception.
Yet, this above-mentioned aluminium band type microphone, this aluminium strip radio reception unit is owing to being a kind of dynamic type microphone that uses electromagnetic induction principle, it is for putting into the strip metal film of aluminium normally or duralumin material at magnet two interpolars, when this film is subject to sound vibrations, because electromagnetic induction produces signal, it is due to the fragility that shape is huge and aluminium foil strip is very thin, there is volume restrictions to a certain degree, therefore cannot be installed in general consumer electronic product to facilitate use, therefore, how to make consumer electronic product have gently, thin, short, the volume of littleization also has excellent stereo radio reception effect concurrently, the subject under discussion of having paid attention to for related industry personage.
Utility model content
Main purpose of the present utility model, is to solve existing electret condenser microphone and aluminium band type microphone, and it has volume restrictions to a certain degree, and cannot be equipped on easily general consumer electronic product to reach the problem of stereo radio reception.
For reaching above-mentioned purpose, the utility model provides a kind of stereo array micro-electro-mechanical microphone, and in order to receive a sound, it includes:
One radio reception portion, this radio reception portion comprises at least three micro-electro-mechanical microphones, the setting of being separated by each other of this micro-electro-mechanical microphone, and receive respectively this sound and respectively export a signal of telecommunication; And
The portion that sets up is pointed in one radio reception that is electrically connected and receives this signal of telecommunication with this radio reception portion, and this radio reception is pointed to the portion that sets up and converted this signal of telecommunication to one first and point to audio frequency and one second and point to audio frequency and export;
Wherein, this first sensing audio frequency and this second sensing audio frequency form the different radio reception main shaft of a direction to this sound respectively.
Above-mentioned stereo array micro-electro-mechanical microphone, wherein this micro-electro-mechanical microphone is three, and this micro-electro-mechanical microphone is for being arranged in the leg-of-mutton three vertex positions setting of being separated by.
Above-mentioned stereo array micro-electro-mechanical microphone, wherein this micro-electro-mechanical microphone is four, and this micro-electro-mechanical microphone is for being arranged in the tetragonal four vertex positions setting of being separated by.
Above-mentioned stereo array micro-electro-mechanical microphone, wherein this quadrangle is to be selected from the group trapezoidal, square, rhombus forms.
Above-mentioned stereo array micro-electro-mechanical microphone, wherein this micro-electro-mechanical microphone is four, and this micro-electro-mechanical microphone is for arranging along a straight line the setting of being separated by.
Thus, the utility model utilizes the array setting of this micro-electro-mechanical microphone, and by this radio reception, point to the portion of foundation and set up this first sensing audio frequency and this second sensing audio frequency, reach the effect of the stereo radio reception of dual track, compare existing electret condenser microphone or aluminium band type microphone, significantly reduced volume, is applicable to being widely used on various Portable consumption electronic products.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structure block diagram of the utility model the first embodiment;
Fig. 2 is arrangement position and the directive property utmost point figure of the utility model the first embodiment micro-electro-mechanical microphone;
Fig. 3 A to Fig. 3 D is arrangement position and the directive property utmost point figure of another embodiment micro-electro-mechanical microphone of the utility model.
Embodiment
Relevant detailed description of the present utility model and technology contents, now just coordinate graphic being described as follows:
Please arrange in pairs or groups and consult shown in Fig. 1 and Fig. 2, Fig. 1 is the structure block diagram of the utility model the first embodiment, Fig. 2 is arrangement position and the directive property utmost point figure of the utility model the first embodiment micro-electro-mechanical microphone, as shown in the figure: the utility model is a kind of stereo array micro-electro-mechanical microphone, in order to receive a sound 40, include a radio reception portion 10 and a radio reception and point to the portion 20 that sets up.This radio reception portion 10 comprises at least three micro-electro-mechanical microphones 11 (MicroElectrical-Mechanical System, MEMS), the setting of being separated by each other of this micro-electro-mechanical microphone 11, in this embodiment, this micro-electro-mechanical microphone 11 with three for illustrating, and for being arranged in the setting of being separated by of three vertex positions of a triangle 50, this triangle 50 is with on one side in the face of this sound 40, and this summit on this limit is compared other two summits and is positioned at the position away from this sound 40 relatively.And this radio reception is pointed to the portion that sets up 20 and is electrically connected with this radio reception portion 10, and comprise one to surpass and point to calculation unit 21.
The utility model is when running, by this micro-electro-mechanical microphone 11, receive respectively this sound 40 and respectively export a signal of telecommunication, this signal of telecommunication is set up portion 20 by this radio reception sensing and is received, this radio reception is pointed to the portion that sets up 20 by this super calculation unit 21 that points to, that according to the arrangement position of this micro-electro-mechanical microphone 11, this signal of telecommunication is carried out to directive property foundation one surpasses the calculation of directive property array, convert this signal of telecommunication to the second sensing audio frequency that a first sensing audio frequency and with the directive property of one first radio reception main shaft 22 has the directive property of one second radio reception main shaft 23, again by this first sensing audio frequency and this second sensing audio frequency output, and reach the effect of Three-dimensional dual-track radio reception, wherein this first radio reception main shaft 22 forms different radio reception direction to this sound 40 respectively with this second radio reception main shaft 23, and in the utility model, angle between this first radio reception main shaft 22 and this second radio reception main shaft 23 can be 60 degree～180 degree, and be preferably 60 degree.
Refer to shown in Fig. 3 A to Fig. 3 D, arrangement position and directive property utmost point figure for another embodiment micro-electro-mechanical microphone of the utility model, as shown in the figure, in this embodiment, compare with the first embodiment, it is characterized in that this micro-electro-mechanical microphone 11 is four, among Fig. 3 A, this micro-electro-mechanical microphone 11 is for being arranged in the setting of being separated by of four vertex positions of one first quadrangle 51, and this first quadrangle 51 is a square, this square with one group of parallel edges in the face of this sound 40; Among Fig. 3 B, this micro-electro-mechanical microphone 11 is for being arranged in the setting of being separated by of four vertex positions of one second quadrangle 52, this second quadrangle 52 is a rhombus, in this rhombus, with one group of summit of facing mutually, forms summit and the summit away from this sound 40 that approaches this sound 40; Among Fig. 3 C, this micro-electro-mechanical microphone 11 is for being arranged in the setting of being separated by of four vertex positions of one the 3rd quadrangle 53, and the 3rd quadrangle 53 is one trapezoidal, this trapezoidal with a parallel minor face and a long limit in the face of this sound 40, wherein this long limit is near this sound 40, and this minor face is away from this sound 40; As among Fig. 3 D, this micro-electro-mechanical microphone 11 is for 54 arranging the setting of being separated by along a straight line, one side of this straight line 54 is for facing this sound 40, so far, be noted that, this micro-electro-mechanical microphone 11 also can be more than four, the directive property that arrangement mode can be set up according to institute's wish is adjusted, only need make this first this first radio reception main shaft 22 and this second this second radio reception main shaft 23 that points to audio frequency that points to audio frequency there is obvious resistant strength and separation property, can reach the effect of Three-dimensional dual-track radio reception.
In sum, because the utility model utilizes the array setting of this micro-electro-mechanical microphone, and by this radio reception, point to the portion that sets up and set up this first sensing audio frequency and this second sensing audio frequency with this super directive property calculation unit, not only reach the effect of the stereo radio reception of dual track, compare existing stereophony microphone, more significantly dwindled volume, and can be widely used on various consumption electronic products.
Certainly; the utility model also can have other various embodiments; in the situation that not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (5)
1. a stereo array micro-electro-mechanical microphone, in order to receive a sound, is characterized in that, includes:
One radio reception portion, this radio reception portion comprises at least three micro-electro-mechanical microphones, the setting of being separated by each other of this micro-electro-mechanical microphone, and receive respectively this sound and respectively export a signal of telecommunication; And
The portion that sets up is pointed in one radio reception that is electrically connected and receives this signal of telecommunication with this radio reception portion, and this radio reception is pointed to the portion that sets up and converted this signal of telecommunication to one first and point to audio frequency and one second and point to audio frequency and export;
Wherein, this first sensing audio frequency and this second sensing audio frequency form the different radio reception main shaft of a direction to this sound respectively.
2. stereo array micro-electro-mechanical microphone according to claim 1, is characterized in that, this micro-electro-mechanical microphone is three, and this micro-electro-mechanical microphone is for being arranged in the leg-of-mutton three vertex positions setting of being separated by.
3. stereo array micro-electro-mechanical microphone according to claim 1, is characterized in that, this micro-electro-mechanical microphone is four, and this micro-electro-mechanical microphone is for being arranged in the tetragonal four vertex positions setting of being separated by.
4. stereo array micro-electro-mechanical microphone according to claim 3, is characterized in that, this quadrangle is to be selected from the group trapezoidal, square, rhombus forms.
5. stereo array micro-electro-mechanical microphone according to claim 1, is characterized in that, this micro-electro-mechanical microphone is four, and this micro-electro-mechanical microphone is for arranging along a straight line the setting of being separated by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460044.3U CN203446026U (en) | 2013-07-30 | 2013-07-30 | Stereo array-type micro electromechanical system microphone assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460044.3U CN203446026U (en) | 2013-07-30 | 2013-07-30 | Stereo array-type micro electromechanical system microphone assembly |
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| Publication Number | Publication Date |
|---|---|
| CN203446026U true CN203446026U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320460044.3U Expired - Lifetime CN203446026U (en) | 2013-07-30 | 2013-07-30 | Stereo array-type micro electromechanical system microphone assembly |
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| CN (1) | CN203446026U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076529A (en) * | 2014-05-13 | 2014-10-01 | 冠研（上海）企业管理咨询有限公司 | Intelligent spectacles with microphone or microphone array |
| CN113348676A (en) * | 2019-02-14 | 2021-09-03 | 松下电器（美国）知识产权公司 | Microphone device |
-
2013
- 2013-07-30 CN CN201320460044.3U patent/CN203446026U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076529A (en) * | 2014-05-13 | 2014-10-01 | 冠研（上海）企业管理咨询有限公司 | Intelligent spectacles with microphone or microphone array |
| CN104076529B (en) * | 2014-05-13 | 2016-04-27 | 冠研（上海）专利技术有限公司 | Be configured with the intelligent glasses of microphone or microphone array |
| CN113348676A (en) * | 2019-02-14 | 2021-09-03 | 松下电器（美国）知识产权公司 | Microphone device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |
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| CX01 | Expiry of patent term |