CN206212246U - A kind of networking sound equipment and its system - Google Patents
A kind of networking sound equipment and its system Download PDFInfo
- Publication number
- CN206212246U CN206212246U CN201621082144.7U CN201621082144U CN206212246U CN 206212246 U CN206212246 U CN 206212246U CN 201621082144 U CN201621082144 U CN 201621082144U CN 206212246 U CN206212246 U CN 206212246U
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- circuit
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- sound equipment
- audio
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Classifications
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- 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
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Transmitters (AREA)
Abstract
The utility model discloses a kind of networking sound equipment and its system, networking sound equipment includes：Modulating emission circuit；First power amplifier, is electrically connected at the modulating emission circuit；Audio output circuit, is electrically connected at the modulating emission circuit and first power amplifier；Audio wireless device, is electrically connected at the audio output circuit.Implementing the beneficial effects of the utility model is, the networking function between multiple sound equipments is realized by wireless control technology and frequency modulation, improves the adventure in daily life of people, makes Intelligent housing function that variation is presented.
Description
Technical field
The utility model is related to networking sound technique field, more particularly to a kind of networking sound equipment and its system.
Background technology
With the popularization of sound technique, increasing sound equipment gets their way into people's lives.Pass through smart home at present
The technology of remote control sound is more ripe, but this telecontrol engineering antijamming capability is weak, and networking inconvenience, reliability is general.And
In the prior art, it is difficult to realize the networking function between multiple sound equipments.
Utility model content
The purpose of this utility model is to provide a kind of networking sound equipment and its system, solves telecontrol engineering in the prior art and resists
Interference performance is weak, and networking inconvenience, reliability is general, and is difficult to the problem of the networking function between multiple sound equipments.
The technical solution of the utility model is realized as follows：
The utility model provides a kind of networking sound equipment, including：
Modulating emission circuit；
First power amplifier, is electrically connected at the modulating emission circuit；
Audio output circuit, is electrically connected at the modulating emission circuit and first power amplifier；
Audio wireless device, is electrically connected at the audio output circuit.
In networking sound equipment described in the utility model, the modulating emission circuit includes：
Transmitting sub-circuit, is electrically connected at first power amplifier and the audio output circuit；
Frequency setting sub-circuit, is electrically connected at the transmitting sub-circuit.
In networking sound equipment described in the utility model, the transmitting sub-circuit includes：
Transmitting antenna；
First processor, is electrically connected at the transmitting antenna.
In networking sound equipment described in the utility model, the frequency setting sub-circuit includes：
Second processing device, is electrically connected at the first processor；
Frequency switching component, is electrically connected at the second processing device.
In networking sound equipment described in the utility model, first power amplifier includes：
Power amplifier processor, is electrically connected at the modulating emission circuit and the audio output circuit；
Sound equipment, is electrically connected at the power amplifier processor.
In networking sound equipment described in the utility model, the audio output circuit includes audio socket；The audio is inserted
Seat includes transmitting socket, receives socket, Jing Yin socket, L channel socket, R channel socket；The L channel socket and the right side
Sound channel socket is electrically connected at first power amplifier and the modulating emission circuit.
In networking sound equipment described in the utility model, the audio wireless device includes audio housing, emission interface, connects
Receive interface, Jing Yin interface, left channel interface, right channel interface and ANTENNAUDIO antenna；Wherein, the emission interface, L channel
Interface, right channel interface are arranged at the audio surface of shell, and receiving interface, Jing Yin interface and ANTENNAUDIO antenna are respectively provided with
In the audio enclosure interior；The emission interface is connected to the transmitting socket, and the receiving interface is connected to reception socket,
The Jing Yin interface is connected to the Jing Yin socket, and the left channel interface is connected to the L channel socket, the R channel
Interface is connected to the R channel socket.
In networking sound equipment described in the utility model, also including power circuit；The power circuit includes：
For the ac input end of incoming transport electricity；
AC-DC reduction voltage circuits, are electrically connected at the ac input end；
First direct current regulation circuit, its input is electrically connected at the AC-DC reduction voltage circuits, and its output end is electrically connected with
In the modulating emission circuit exporting the first DC voltage；
The second direct current regulation circuit for exporting the second DC voltage, its input is electrically connected at the AC-DC drops
Volt circuit, its output end is electrically connected at first power amplifier and the audio wireless device to export the second direct current
Pressure.
In networking sound equipment described in the utility model, the audio output circuit also includes direct-current voltage reducing circuit；It is described
The input of direct-current voltage reducing circuit is electrically connected at second direct current regulation circuit；
The audio socket also includes outlet, and the output end of the direct-current voltage reducing circuit is by outlet electricity
Property is connected to the audio wireless device.
On the other hand, there is provided a kind of networking sound system, including：
Networking sound equipment as described above；
One or more is rung by the consonant that frequency modulation is connected to the networking sound equipment；Each described consonant rings and includes：Frequency modulation
Radio reception circuit and the second power amplifier being electrically connected with the fm radio circuit.
In networking sound system described in the utility model, the fm radio circuit includes：
Reception antenna；
Radio reception processor, is electrically connected at second power amplifier and the reception antenna；
Frequency-selecting potentiometer, is electrically connected at the radio reception processor.
Therefore, the beneficial effects of the utility model are, are realized between multiple sound equipments by wireless control technology and frequency modulation
Networking function, improves the adventure in daily life of people, makes Intelligent housing function that variation is presented.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
A kind of module frame chart of networking sound equipment that Fig. 1 is provided for the utility model；
A kind of structural representation of networking sound equipment that Fig. 2 is provided for the embodiment of the utility model one；
The structural representation of the power circuit that Fig. 3 is provided for the embodiment of the utility model one；
A kind of structural representation of networking sound system that Fig. 4 is provided for the utility model；
The structural representation of the consonant sound that Fig. 5 is provided for the embodiment of the utility model one.
Specific embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing will be below compareed
Describe specific embodiment of the present utility model in detail.It should be appreciated that following explanation is only the specific of the utility model embodiment
Illustrate, protection domain of the present utility model should not be limited with this.
The utility model provides a kind of networking sound equipment and its system, it is intended that passing through wireless control technology and frequency modulation
The networking function between multiple sound equipments is realized, the adventure in daily life of people is improved, makes Intelligent housing function that variation is presented.
Referring to Fig. 1, a kind of module frame chart of networking sound equipment 100 that Fig. 1 is provided for the utility model, the networking sound equipment 100
Including modulating emission circuit 1, the first power amplifier 2, audio output circuit 3, audio wireless device 4 and power circuit 5.
Referring to Fig. 2, a kind of structural representation of networking sound equipment 100 that Fig. 2 is provided for the embodiment of the utility model one, figure
In, the modulating emission circuit 1 includes transmitting sub-circuit 11 and frequency setting sub-circuit 12.Wherein, transmitting sub-circuit 11 is electrical
It is connected to first power amplifier 2 and the audio output circuit 3；Frequency setting sub-circuit 12 is electrically connected at the transmitting
Sub-circuit 11.
The transmitting sub-circuit 11 includes transmitting antenna 111 and first processor 112.Transmitting antenna 111 is the RF- in figure
ANT, its modulation frequency is FM：87.5-110MHz.First processor 112 is electrically connected at the transmitting antenna 111.At first
Reason device 112 is the U8 in figure, and the RF-OUT ends of U8 are connected to transmitting antenna 111.
The frequency setting sub-circuit 12 includes second processing device 121 and frequency switching component 122.Second processing device 121
It is electrically connected at the first processor 112；Second processing device 121 is the U9 in figure, the PA7 ends of its model LY-MCU, U9
The SDL ends of U8 are connected to, the PA3 ends of U9 are connected to the SDA ends of U8, and the PA4 ends of U9 are connected to the SW1 ends of U8.Frequency switching group
Part 122 is electrically connected at the second processing device 121.Frequency switching component 122 includes switch S1 and S2, wherein, referring in figure
Form, when S1 and S2 disconnect, i.e. when the value of S1 and S2 is 0, the radiofrequency signal (i.e. RF) of generation is f1, namely transmitting frequency
Rate；When S1 disconnects (value is 0), during S2 closures (value is 1), the radiofrequency signal of generation is f2；When S1 closures (value is 1), S2 disconnects
When (value is 0), the radiofrequency signal of generation is f3；When S1 and S2 are closed, the radiofrequency signal of generation is f4.U9 can be according to frequency modulation
Signal controls the transmission signal of transmitting antenna 111.
First power amplifier 2 is electrically connected at the modulating emission circuit 1；First power amplifier 2 includes power amplifier processor
21 and sound equipment 22.Power amplifier processor 21 is the U7 in figure, and it is electrically connected at the modulating emission circuit 1 and the audio output
Circuit 3, INL the and INR ends of U8 are connected to especially by its IN+ end；Sound equipment 22 is electrically connected at the power amplifier processor 21, sound
It is the SP1 in figure, its OUT+ and OUT- end for being connected to U7 to ring 22.
Audio output circuit 3 is electrically connected at the modulating emission circuit 1 and first power amplifier 2；The audio
Output circuit 3 includes audio socket 31 and direct-current voltage reducing circuit 32；The audio socket 31 is the BLE2 in figure, and it includes transmitting
Socket TX, reception socket RX, Jing Yin socket MUTE, L channel socket LIN, the outlet of R channel socket RIN and+3.6V；
The L channel socket LIN and the R channel RIN sockets be electrically connected at the U7 of first power amplifier 2 IN+ ends and
INL the and INR ends of the U8 of the modulating emission circuit 1.Transmitting socket TX is connected to the emission function button of peripheral hardware, receives socket
RX is connected to the receive capabilities button of peripheral hardware, and Jing Yin socket MUTE is connected to the mute function button of peripheral hardware.The DC decompression
It is+3.6V DC voltages that circuit 32 is used for the step-down of+5V DC voltages.Its input is electrically connected at second DC voltage-stabilizing
Circuit 54 is accessing+5V voltages；The output end of the direct-current voltage reducing circuit 32 is electrically connected to described by the outlet
Audio wireless device 4 is exporting+3.6V voltages.Specifically, the direct-current voltage reducing circuit 32 includes the model of processor U6, U6
SI6001, it 2 is terminated into+5V voltages, its 3 end output+3.6V voltages.
For the audio wireless device 4 by wireless receiving audio control signal, the audio output electricity is electrically connected at
Road 3.The audio wireless device 4 can be for audio blue-tooth device, wifi devices etc., preferably audio blue-tooth device, by sound
Frequency wireless device 4 receives the audio signal of outside and is forwarded to the first power amplifier 2 and modulating emission circuit 1, and it includes sound
Frequency housing 41, transmitting terminal 42, receiving terminal 43, Jing Yin end 44, L channel end 45, R channel end 46 and ANTENNAUDIO antenna 47；Its
In, the transmitting terminal 42, receiving terminal 43, Jing Yin end 44, L channel end 45, R channel end 46 and ANTENNAUDIO antenna 47 are respectively provided with
In the surface of audio housing 41；The transmitting terminal 42 is connected to the transmitting socket TX, and the receiving terminal 43 is connected to reception
Socket RX, the Jing Yin end 44 is connected to the Jing Yin socket MUTE, and the L channel end 45 is connected to the L channel socket
LIN, the R channel end 46 is connected to the R channel socket RIN.Additionally, audio wireless device 4 also includes at wireless signal
Reason device, the wireless signal processor be connected to transmitting terminal 42, receiving terminal 43, Jing Yin end 44, L channel end 45, R channel end 46 and
ANTENNAUDIO antenna 47, wireless signal processor is arranged on inside audio housing 41.
Referring to Fig. 3, the structural representation of the power circuit 5 that Fig. 3 is provided for the embodiment of the utility model one, the power supply electricity
Road 5 includes ac input end 51, AC-DC reduction voltage circuits 52, the first direct current regulation circuit 53 and the second direct current regulation circuit 54.Hand over
Stream input 51 is used to access the alternating current of 100-240V.AC-DC reduction voltage circuits 52 are electrically connected at the ac input end 51；
The input of the first direct current regulation circuit 53 is electrically connected at the AC-DC reduction voltage circuits 52, and its output end is electrically connected at institute
Modulating emission circuit 1 is stated to export first DC voltage of+5V；Second direct current regulation circuit 54 is used to export the second direct current
Pressure, its input is electrically connected at the AC-DC reduction voltage circuits 52, and its output end is electrically connected at first power amplifier 2
And the audio wireless device is exporting second DC voltage of+3.3V.
Referring to Fig. 4, a kind of structural representation of networking sound system 10 that Fig. 4 is provided for the utility model, the networking sound
Acoustic system 10 include networking sound equipment 100 as described above and one or more the son of the networking sound equipment 100 is connected to by frequency modulation
Sound equipment 200.In this way, by networking sound equipment 100 by the audio control signal outside wireless receiving, by audio control signal control
The sound equipment 22 of networking sound equipment 100 processed plays content, and modulating emission circuit 1 by networking sound equipment 100 is transmitted into each consonant
200 are rung, consonant sound 200 is together played after receiving audio control signal with networking sound equipment 100.Wherein, outside audio frequency control
Signal can be launched by various intelligent terminals, and these intelligent terminals need to only install corresponding APP and be capable of achieving to be wirelessly connected to
The networking sound equipment 100.
Referring to Fig. 5, the structural representation of the consonant sound 200 that Fig. 5 is provided for the embodiment of the utility model one, each described son
Sound equipment 200 includes fm radio circuit 201 and the second power amplifier 202 being electrically connected with the fm radio circuit 201.
The fm radio circuit 201 includes reception antenna 2011, radio reception processor 2012 and frequency-selecting potentiometer 2013.
Reception antenna 2011 is the FM-ANT in figure.Radio reception processor 2012 is the U10 in figure, and it is electrically connected at described
Second power amplifier 202 and the reception antenna 2011, specifically, the GND5 ends of U10, LDOCAP ends, FMIN ends etc. are connected to
Reception antenna 2011.Frequency-selecting potentiometer 2013 is the PVR1 in figure, VREF-N ends that it is electrically connected at the radio reception processor,
VOL ends and VREF-P ends.Second power amplifier include processor U11 and sound equipment SP2, sound equipment SP2 be connected to U11 OUT+ ends and
OUT- ends.
There is provided herein the various operations of embodiment.In one embodiment, described one or operation may be constructed one
The computer-readable instruction stored on individual or computer-readable medium, it will be so that computing device be held when being performed by electronic equipment
The row operation.Describing the order of some or all of operations, to should not be construed as to imply that these operations necessarily order dependent
's.It will be appreciated by those skilled in the art that the alternative sequence of the benefit with this specification.Furthermore, it is to be understood that not being institute
Having operation must exist in each embodiment provided in this article.
And, word " preferred " used herein means serving as example, example or illustration.Feng Wen is described as " preferably
" any aspect or design be not necessarily to be construed as than other aspect or design it is more favourable.Conversely, the use purport of word " preferred "
Concept is being proposed in a concrete fashion.Term "or" as used in this application is intended to mean the "or" for including and non-excluded
"or".I.e., unless otherwise or clear from the context, " X uses A or B " means that nature includes any one of arrangement.
That is, if X uses A；X uses B；Or X uses A and B both, then " X uses A or B " is met in foregoing any example.
And, although the disclosure, people in the art has shown and described relative to one or implementation
Member will appreciate that equivalent variations and modification based on the reading and understanding to the specification and drawings.The disclosure includes all such
Modification and modification, and be limited only by the scope of the following claims.Particularly with by said modules (such as element, resource
Deng) various functions that perform, the term for describing such component is intended to correspond to the specified function (example for performing the component
Functionally of equal value such as it) random component (unless otherwise instructed), even if in structure with perform shown in this article
The open structure of the function in disclosed exemplary implementations is not equivalent.Although additionally, the special characteristic of the disclosure phase
It is disclosed for the only one in some implementations, but this feature can be for given or application-specific with such as
It is to expect one or other combinations of features with other favourable implementations.And, with regard to term " including ", " having ", " contain
Have " or its deformation be used in specific embodiment or claim for, such term be intended to with term " include " phase
As mode include.
Each functional unit in the utility model embodiment can be integrated in a processing module, or each list
Unit is individually physically present, it is also possible to which two or more units are integrated in a module.Above-mentioned integrated module both can be with
Realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.If the integrated module is with software
The form of functional module is realized and as independent production marketing or when using, it is also possible to which storage is deposited in an embodied on computer readable
In storage media.Storage medium mentioned above can be read-only storage, disk or CD etc..Above-mentioned each device or system,
The method in correlation method embodiment can be performed.
In sum, although the utility model is disclosed above with preferred embodiment, but above preferred embodiment is not used
To limit the utility model, one of ordinary skill in the art is not departing from spirit and scope of the present utility model, can make
Various changes are defined with retouching, therefore protection domain of the present utility model by the scope that claim is defined.
Claims (11)
1. a kind of networking sound equipment, it is characterised in that including：
Modulating emission circuit；
First power amplifier, is electrically connected at the modulating emission circuit；
Audio output circuit, is electrically connected at the modulating emission circuit and first power amplifier；
Audio wireless device, is electrically connected at the audio output circuit.
2. networking sound equipment according to claim 1, it is characterised in that the modulating emission circuit includes：
Transmitting sub-circuit, is electrically connected at first power amplifier and the audio output circuit；
Frequency setting sub-circuit, is electrically connected at the transmitting sub-circuit.
3. networking sound equipment according to claim 2, it is characterised in that the transmitting sub-circuit includes：
Transmitting antenna；
First processor, is electrically connected at the transmitting antenna.
4. networking sound equipment according to claim 3, it is characterised in that the frequency setting sub-circuit includes：
Second processing device, is electrically connected at the first processor；
Frequency switching component, is electrically connected at the second processing device.
5. networking sound equipment according to claim 1, it is characterised in that first power amplifier includes：
Power amplifier processor, is electrically connected at the modulating emission circuit and the audio output circuit；
Sound equipment, is electrically connected at the power amplifier processor.
6. networking sound equipment according to claim 1, it is characterised in that the audio output circuit includes audio socket；Institute
Stating audio socket includes transmitting socket, receives socket, Jing Yin socket, L channel socket, R channel socket；The L channel socket
And the R channel socket is electrically connected at first power amplifier and the modulating emission circuit.
7. networking sound equipment according to claim 6, it is characterised in that the audio wireless device includes audio housing, hair
Penetrate interface, receiving interface, Jing Yin interface, left channel interface, right channel interface and ANTENNAUDIO antenna；Wherein, the transmitting connects
Mouth, left channel interface, right channel interface are arranged at the audio surface of shell, receiving interface, Jing Yin interface and ANTENNAUDIO day
Line may be contained within the audio enclosure interior；The emission interface is connected to the transmitting socket, and the receiving interface is connected to
Socket is received, the Jing Yin interface is connected to the Jing Yin socket, and the left channel interface is connected to the L channel socket, institute
State right channel interface and be connected to the R channel socket.
8. networking sound equipment according to claim 7, it is characterised in that also including power circuit；The power circuit includes：
For the ac input end of incoming transport electricity；
AC-DC reduction voltage circuits, are electrically connected at the ac input end；
First direct current regulation circuit, its input is electrically connected at the AC-DC reduction voltage circuits, and its output end is electrically connected at institute
Modulating emission circuit is stated to export the first DC voltage；
The second direct current regulation circuit for exporting the second DC voltage, its input is electrically connected at the AC-DC step-downs electricity
Road, its output end is electrically connected at first power amplifier and the audio wireless device to export the second DC voltage.
9. networking sound equipment according to claim 8, it is characterised in that the audio output circuit also includes DC decompression electricity
Road；The input of the direct-current voltage reducing circuit is electrically connected at second direct current regulation circuit；
The audio socket also includes outlet, and the output end of the direct-current voltage reducing circuit electrically connects by the outlet
It is connected to the audio wireless device.
10. a kind of networking sound system, it is characterised in that including：
Networking sound equipment as claimed in claim 1；
One or more is rung by the consonant that frequency modulation is connected to the networking sound equipment；Each described consonant rings and includes：FM radio
Circuit and the second power amplifier being electrically connected with the fm radio circuit.
11. networking sound systems according to claim 10, it is characterised in that the fm radio circuit includes：
Reception antenna；
Radio reception processor, is electrically connected at second power amplifier and the reception antenna；
Frequency-selecting potentiometer, is electrically connected at the radio reception processor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621082144.7U CN206212246U (en) | 2016-09-27 | 2016-09-27 | A kind of networking sound equipment and its system |
| PCT/CN2017/087148 WO2018058997A1 (en) | 2016-09-27 | 2017-06-05 | Networked speakers and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621082144.7U CN206212246U (en) | 2016-09-27 | 2016-09-27 | A kind of networking sound equipment and its system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206212246U true CN206212246U (en) | 2017-05-31 |
Family
ID=58761391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621082144.7U Expired - Fee Related CN206212246U (en) | 2016-09-27 | 2016-09-27 | A kind of networking sound equipment and its system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206212246U (en) |
| WO (1) | WO2018058997A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058997A1 (en) * | 2016-09-27 | 2018-04-05 | 深圳佳比泰智能照明股份有限公司 | Networked speakers and system thereof |
| CN110995550A (en) * | 2019-11-20 | 2020-04-10 | 厦门讴歌电子有限公司 | Intelligent home dial-up networking background audio system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1627648A (en) * | 2003-12-12 | 2005-06-15 | 信邦电子股份有限公司 | Wireless music player |
| CN101583070A (en) * | 2009-03-16 | 2009-11-18 | 杨意会 | Wireless car audio system and configuration method thereof |
| JP2011010183A (en) * | 2009-06-29 | 2011-01-13 | Yamaha Corp | Music reproduction system, mobile terminal device and music reproduction program |
| CN101853589B (en) * | 2010-05-16 | 2012-02-22 | 冯德强 | Electronic point-reading pointer |
| CN203691612U (en) * | 2013-12-03 | 2014-07-02 | 吴大军 | Cluster type multifunctional audio communication system |
| CN203872353U (en) * | 2014-02-12 | 2014-10-08 | 深圳市日上光电股份有限公司 | Wireless sound device control system |
| CN206212246U (en) * | 2016-09-27 | 2017-05-31 | 深圳市蚂蚁雄兵物联技术有限公司 | A kind of networking sound equipment and its system |
-
2016
- 2016-09-27 CN CN201621082144.7U patent/CN206212246U/en not_active Expired - Fee Related
-
2017
- 2017-06-05 WO PCT/CN2017/087148 patent/WO2018058997A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058997A1 (en) * | 2016-09-27 | 2018-04-05 | 深圳佳比泰智能照明股份有限公司 | Networked speakers and system thereof |
| CN110995550A (en) * | 2019-11-20 | 2020-04-10 | 厦门讴歌电子有限公司 | Intelligent home dial-up networking background audio system |
| CN110995550B (en) * | 2019-11-20 | 2021-11-30 | 厦门讴歌电子有限公司 | Intelligent home dial-up networking background audio system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018058997A1 (en) | 2018-04-05 |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170531 Termination date: 20200927 |