CN106937210A - A kind of external audio directional loudspeaker - Google Patents
A kind of external audio directional loudspeaker Download PDFInfo
- Publication number
- CN106937210A CN106937210A CN201710321600.1A CN201710321600A CN106937210A CN 106937210 A CN106937210 A CN 106937210A CN 201710321600 A CN201710321600 A CN 201710321600A CN 106937210 A CN106937210 A CN 106937210A
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- China
- Prior art keywords
- circuit
- external audio
- directional loudspeaker
- acoustical generator
- generator array
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- 230000005236 sound signal Effects 0.000 claims abstract description 26
- 230000003321 amplification Effects 0.000 claims abstract description 13
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 13
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Abstract
The present invention discloses a kind of external audio directional loudspeaker, including：AUX interface circuits, USB mode interface circuit, bluetooth mode interface circuit, WIFI mode interface circuits, audio signal processing circuit orients acoustical generator array；The AUX interface circuits, USB mode interface circuit, bluetooth mode interface circuit, WIFI mode interfaces circuit are connected by audio signal processing circuit with orientation acoustical generator array；Audio signal processing circuit includes signal modulation circuit and power amplification circuit, and signal modulation circuit is connected with power amplification circuit input；The output end of power amplification circuit is connected with orientation acoustical generator array；The orientation acoustical generator array is at least two ultrasonic transducers, or is at least two MEMSs.The technical scheme that the present invention is provided can provide various connected modes, different user's requests be met, so as to improve Consumer's Experience.
Description
Technical field
The invention belongs to loudspeaker field, more particularly to a kind of external audio directional loudspeaker.
Background technology
Traditional audio tweeter is propagated during audio signal directly is amplified into backward surrounding air, and its sound field is each to space
Individual direction radiation, directive property is poor.When people play music, film by electronic equipments such as mobile phone, computers, the people of surrounding is
Can hear, it is difficult to ensure privacy.In this regard, a kind of solution is to take earphone, another method is exactly to use audio frequency directional
Loudspeaker.And the audio directional loudspeaker of circumscribed uses more convenient in fixed-sites such as family, offices, therefore make
It is higher with frequency, it is also more popular with users.
The usual only one of which wireline interface of current circumscribed audio directional loudspeaker, when its with mobile phone, computer etc. electronics
When equipment is connected, can only be using fixed connected mode.If connecting line is damaged or lost, loudspeaker cannot be used, so that
Great inconvenience is brought to user, Consumer's Experience is poor.
The content of the invention
The present invention is intended to provide a kind of external audio directional loudspeaker, using the teaching of the invention it is possible to provide various connected modes, meet different
User's request, so as to improve Consumer's Experience.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：
A kind of external audio directional loudspeaker, including：AUX interface circuits, USB mode interface circuit, bluetooth mode interface
Circuit, WIFI mode interface circuits, audio signal processing circuit orients acoustical generator array；The AUX interface circuits, USB mode
Interface circuit, bluetooth mode interface circuit, WIFI mode interfaces circuit are fixed with described by the audio signal processing circuit
Connected to acoustical generator array；The audio signal processing circuit includes signal modulation circuit and power amplification circuit, the signal
Modulation circuit is connected with the power amplification circuit input；The output end of power amplification circuit connects with orientation acoustical generator array
Connect；The orientation acoustical generator array is at least two ultrasonic transducers, or is at least two MEMSs.
Preferably, the orientation acoustical generator array is in planar arrangement, and positioned at the external audio directional loudspeaker just
Face.
Preferably, the orientation acoustical generator array rectangular array arrangement.
Preferably, the front of the external audio directional loudspeaker is round rectangle.
Preferably, the outer surface of the external audio directional loudspeaker is arranged to add to the raised and concave figures of friction.
Further, also include：Contact action interface, the contact action interface is located at the orientation acoustical generator array
Same plane.
Preferably, the contact action interface is located at the external audio directional loudspeaker front center position, described fixed
To acoustical generator array distribution around the contact action interface.
Further, also include：Wireless router.
The external audio directional loudspeaker that the present invention is provided, due to being respectively provided with AUX interface circuits in inside loudspeakers,
USB mode interface circuit, bluetooth mode interface circuit and WIFI mode interface circuits so that loudspeaker can use AUX, USB
The electronic equipments such as pattern, bluetooth or WIFI and mobile phone, computer are connected, and realize the variation of connected mode；Employ simultaneously
Audio signal processing circuit, audio signal is loaded into ultrasonic signal, is changed electric signal by orienting acoustical generator array
It is acoustical signal, due to the aerial nonlinear propagation effects of ultrasonic signal, is finally capable of the audio signal of output directional.This
Invention can provide various connected modes, meet different user's requests, so as to improve Consumer's Experience.
Brief description of the drawings
Fig. 1 is the circuit structure block diagram of the embodiment of the present invention；
Fig. 2 is a kind of front view of the embodiment of the present invention；
Fig. 3 is another front view of the embodiment of the present invention；
Fig. 4 is the workflow diagram of the embodiment of the present invention；
Fig. 5 is the schematic diagram that the present invention is connected with mobile phone by WIFI；
Wherein, 1- orientations acoustical generator, 2- contact actions interface, 3- mobile phones.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing, the present invention is entered
Row is further described.
Fig. 1 is the circuit structure block diagram of external audio directional loudspeaker of the invention.The external audio directional loudspeaker, bag
Include：AUX interface circuits, USB mode interface circuit, bluetooth mode interface circuit, WIFI mode interface circuits, Audio Signal Processing
Circuit, orients acoustical generator array；The AUX interface circuits, USB mode interface circuit, bluetooth mode interface circuit, WIFI patterns
Interface circuit is used to receive audio signal, and is connected with the orientation acoustical generator array by the audio signal processing circuit
Connect；The audio signal processing circuit include signal modulation circuit and power amplification circuit, the signal modulation circuit with it is described
Power amplification circuit input is connected；The output end of power amplification circuit is connected with orientation acoustical generator array；The orientation sounding
Device array is at least two ultrasonic transducers, or is at least two MEMSs.The audio signal processing circuit is by interface
The signal of circuit output carries out signal modulation and power amplification, will audio signal be loaded into ultrasonic signal, further according to institute
Multiple is needed to amplify ultrasonic modulation carrier signal；Orientation acoustical generator array is used for the electricity after audio signal processing circuit is processed
Signal is converted to acoustical signal, audible sound wave beam of the output with directive property.
In the present invention, utilized in audible sound audio signal loading to ultrasonic signal by audio signal processing circuit
The aerial nonlinear propagation effects of ultrasound, then produced by ultrasound transducer array or MEMS array a series of along biography
The end-fire virtual sound source of axle distribution is broadcast, these virtual sound sources are otherwise known as parametric array, they are long and narrow at one by sound control
Regional spread, and then form the audible acoustic beam for possessing high directivity.
As shown in Fig. 2 the orientation acoustical generator array in the present embodiment is in planar arrangement, using a kind of preferred scheme, in square
Shape array arrangement, and positioned at the front of loudspeaker, the front view of loudspeaker is round rectangle.By to orientation acoustical generator array
The design of planar arrangement structure, the sensing angle that can make the audible sound wave beam with directive property of output is ± 10 ° so that raised one's voice
The output audio of device is more preferable.
As shown in figure 3, can also be in one contact action interface of loudspeaker frontal design, the contact action interface and orientation
Acoustical generator array is generally aligned in the same plane, and positioned at the external audio directional loudspeaker front center position, orientation acoustical generator battle array
Column distribution is around contact action interface.
Various functions can be increased according to user's request in the contact action interface, for example, can be with the company of display loudspeaker
Connect state, it is also possible to show calendar, memorandum etc..Additionally, in order to improve the hand-held sense of touch of loudspeaker and lift its security, also
The raised and concave figures of friction can be arranged to add in loudspeaker outer surface, the raised and concave figures can be designed to certain pattern, make
Obtain loudspeaker outer surface more attractive in appearance.
Fig. 4 is the workflow diagram of external audio directional loudspeaker of the invention.After loudspeaker is powered, to four interface circuits
Initialization operation is carried out, this four interface circuits are respectively AUX interface circuits, USB mode interface circuit, bluetooth mode interface electricity
Road and WIFI mode interface circuits, four kinds of interface circuits are used to receive the audio signal in mobile phone, and user can select one kind side
Formula connects mobile phone and loudspeaker.When loudspeaker is connected using WIFI patterns with mobile phone, one can also be set in inside loudspeakers
Individual wireless router, for connecting the network signal on mobile phone, so there is no need to extra LAN, to realize resource
Optimization collocation.After loudspeaker connects to network, user can also obtain various resources using network according to their needs.This
Outward, reminding unit can also be set in loudspeaker, and the connection status for reminding user's current speaker and mobile phone works as connection
During success, the prompt tone of successful connection is sent；When connection failure, the prompt tone of connection failure is sent, and the reconnect that resets.
Fig. 5 is the schematic diagram that external audio directional loudspeaker of the invention is connected with mobile phone by WIFI.Specific connection side
Method is to install supporting external audio directional loudspeaker APP on mobile phone first, is mainly used to realize the selection of acoustical signal, raises
The functions such as sound device switch control；Then the connecting valve of loudspeaker and mobile phone in APP is opened, due to being provided with wireless in loudspeaker
Router, can be directly connected to the network signal on mobile phone, after loudspeaker and mobile phone successful connection, you can used by WIFI
APP is controlled to external audio directional loudspeaker, convenient stabilization.
The external audio directional loudspeaker that the present invention is provided, due to being respectively provided with AUX interface circuits in inside loudspeakers,
USB mode interface circuit, bluetooth mode interface circuit and WIFI mode interface circuits so that loudspeaker can use AUX, USB
The electronic equipments such as pattern, bluetooth or WIFI and mobile phone, computer are connected, and realize the variation of connected mode；Employ simultaneously
Audio signal processing circuit, audio signal is loaded into ultrasonic signal, is changed electric signal by orienting acoustical generator array
It is acoustical signal, due to the aerial nonlinear propagation effects of ultrasonic signal, is finally capable of the audio signal of output directional.This
Invention can provide various connected modes, meet different user's requests, so as to improve Consumer's Experience.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Knowing those skilled in the art can make various corresponding changes and deformation, but these corresponding changes and deformation according to the present invention
The protection domain of appended claims of the invention should all be belonged to.
Claims (8)
1. a kind of external audio directional loudspeaker, it is characterised in that including：
AUX interface circuits, USB mode interface circuit, bluetooth mode interface circuit, WIFI mode interface circuits, at audio signal
Reason circuit, orients acoustical generator array；The AUX interface circuits, USB mode interface circuit, bluetooth mode interface circuit, WIFI moulds
Formula interface circuit is connected by the audio signal processing circuit with the orientation acoustical generator array；The Audio Signal Processing
Circuit includes signal modulation circuit and power amplification circuit, and the signal modulation circuit connects with the power amplification circuit input
Connect；The output end of power amplification circuit is connected with orientation acoustical generator array；The orientation acoustical generator array is at least two ultrasounds
Transducer, or be at least two MEMSs.
2. external audio directional loudspeaker according to claim 1, it is characterised in that the orientation acoustical generator array is in flat
Face is arranged, and positioned at the front of the external audio directional loudspeaker.
3. external audio directional loudspeaker according to claim 2, it is characterised in that the orientation acoustical generator array is in square
Shape array arrangement.
4. external audio directional loudspeaker according to claim 1, it is characterised in that the external audio directional loudspeaker
Front be round rectangle.
5. external audio directional loudspeaker according to claim 1, it is characterised in that the external audio directional loudspeaker
Outer surface be arranged to add to friction raised and concave figures.
6. external audio directional loudspeaker according to claim 2, it is characterised in that also include：Contact action interface, institute
Contact action interface is stated to be generally aligned in the same plane with the orientation acoustical generator array.
7. external audio directional loudspeaker according to claim 6, it is characterised in that the contact action interface is located at institute
External audio directional loudspeaker front center position is stated, the orientation acoustical generator array distribution is in the week at the contact action interface
Enclose.
8. external audio directional loudspeaker according to claim 1, it is characterised in that also include：Wireless router.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710321600.1A CN106937210A (en) | 2017-05-09 | 2017-05-09 | A kind of external audio directional loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710321600.1A CN106937210A (en) | 2017-05-09 | 2017-05-09 | A kind of external audio directional loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106937210A true CN106937210A (en) | 2017-07-07 |
Family
ID=59429398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710321600.1A Pending CN106937210A (en) | 2017-05-09 | 2017-05-09 | A kind of external audio directional loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106937210A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113572882A (en) * | 2020-04-29 | 2021-10-29 | 维沃移动通信有限公司 | Protective sleeve of electronic equipment |
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| JP2009218950A (en) * | 2008-03-11 | 2009-09-24 | Kyocera Corp | Portable terminal device with camera |
| CN101583061A (en) * | 2009-06-26 | 2009-11-18 | 电子科技大学 | Micro speaker with directional transaudient function |
| CN204029385U (en) * | 2014-07-15 | 2014-12-17 | 杭州罗孚音响有限公司 | The double mode music playing system of WIFI+ bluetooth |
| WO2015117616A1 (en) * | 2014-02-06 | 2015-08-13 | Bang & Olufsen A/S | Loudspeaker transducer arrangement for directivity control |
| CN204887333U (en) * | 2015-09-01 | 2015-12-16 | 丰顺明音电子有限公司 | Intelligence bluetooth speaker |
| CN206894871U (en) * | 2017-05-09 | 2018-01-16 | 成都泰声科技有限公司 | A kind of external audio directional loudspeaker |
-
2017
- 2017-05-09 CN CN201710321600.1A patent/CN106937210A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101203062A (en) * | 2007-07-20 | 2008-06-18 | 徐利梅 | Method for numeral sound signal processing and digital type sound frequency directional loudspeaker |
| JP2009218950A (en) * | 2008-03-11 | 2009-09-24 | Kyocera Corp | Portable terminal device with camera |
| CN101583061A (en) * | 2009-06-26 | 2009-11-18 | 电子科技大学 | Micro speaker with directional transaudient function |
| WO2015117616A1 (en) * | 2014-02-06 | 2015-08-13 | Bang & Olufsen A/S | Loudspeaker transducer arrangement for directivity control |
| CN204029385U (en) * | 2014-07-15 | 2014-12-17 | 杭州罗孚音响有限公司 | The double mode music playing system of WIFI+ bluetooth |
| CN204887333U (en) * | 2015-09-01 | 2015-12-16 | 丰顺明音电子有限公司 | Intelligence bluetooth speaker |
| CN206894871U (en) * | 2017-05-09 | 2018-01-16 | 成都泰声科技有限公司 | A kind of external audio directional loudspeaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113572882A (en) * | 2020-04-29 | 2021-10-29 | 维沃移动通信有限公司 | Protective sleeve of electronic equipment |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170707 |
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| WD01 | Invention patent application deemed withdrawn after publication |