CN101719586A - Communication device, horn and antenna assembly thereof - Google Patents
Communication device, horn and antenna assembly thereof Download PDFInfo
- Publication number
- CN101719586A CN101719586A CN 200910238846 CN200910238846A CN101719586A CN 101719586 A CN101719586 A CN 101719586A CN 200910238846 CN200910238846 CN 200910238846 CN 200910238846 A CN200910238846 A CN 200910238846A CN 101719586 A CN101719586 A CN 101719586A
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- radiant body
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- loudspeaker
- sound chamber
- feedback
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- 238000004891 communication Methods 0.000 title claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 26
- 238000010168 coupling process Methods 0.000 claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- PEZNEXFPRSOYPL-UHFFFAOYSA-N (bis(trifluoroacetoxy)iodo)benzene Chemical compound FC(F)(F)C(=O)OI(OC(=O)C(F)(F)F)C1=CC=CC=C1 PEZNEXFPRSOYPL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000009977 dual effect Effects 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 abstract description 27
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 239000003302 ferromagnetic material Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention discloses a communication device, a horn and an antenna assembly thereof. The horn and the antenna assembly comprise a small tone cavity; the tone cavity comprises an insulation bracket serving as a cavity, a horn arranged in the tone cavity and a first antenna radiator positioned on the insulation bracket, wherein the horn comprises an upper voice frequency metal cover serving as a second radiator of the antenna, the load point of the first radiator is used for connecting a disjunctive feeding point and an earth feeding point to form a PIFA antenna form, and a first coupling slot is arranged between the first radiator and the second radiator. The invention can enable the antenna to have the characteristics of super-small volume, high radiation, multiple frequency band and super-wide frequency band and turns the waste into the valuable.
Description
Technical field
The present invention relates to a kind of electronic equipment, relate in particular to a kind of communication equipment and loudspeaker thereof and antenna module.
Background technology
Mobile phone develops towards personalization, miniaturization, broadband, many antennas, louder volume, high tone quality at present, the especially arrival in 3G epoch, and wideer to the bandwidth requirement of antenna, it is higher to gain.For the requirement to mobile phone tonequality, the prior art mobile phone generally is placed on loudspeaker in the antenna holder, forms the sound chamber.Antenna then is made on the antenna holder.Because loudspeaker are to be made by metal material, under the structural condition of component miniaturization, loudspeaker are very near from the distance of antenna, and are therefore bigger to the radiation effect of antenna, often all are negative effects, promptly reduced the radiation of antenna.
For improving the efficient of antenna, prior art constantly develops built-in antenna arrangement, as a kind of method that improves handset antenna radiation efficiency that disclosed Chinese invention patent application on August 1st, 2007 discloses for No. 200610003364.0, this method mainly may further comprise the steps:
1) near the relevant elements the antenna is carried out modeling;
2) antenna is carried out modeling, antenna primary radiation bar conformally is laid in away from the ferromagnetic material in the mobile phone loudspeaker and iron hoop and around the position of camera medium cutting hole, the auxiliary radiation bar in the antenna for mobile phone is laid in position near the ferromagnetic material in the mobile phone loudspeaker and iron hoop and the described primary radiation bar predetermined space of distance space;
3) determine to satisfy simultaneously the antenna pattern that antenna distribution area minimum and antenna radiation efficiency equal a minimum threshold by artificial debugging.
Above-mentioned patent application document also illustrates: because ferromagnetic material can absorb the electromagnetic wave energy that antenna is launched in the loudspeaker, and the iron hoop on the loudspeaker can impact the resonance frequency of antenna, therefore the primary radiation bar of antenna should be laid away from the loudspeaker of mobile phone.
Just, this patent application is the influence of reply loudspeaker to aerial radiation, the primary radiation bar of antenna is laid away from the loudspeaker of mobile phone, but made the miniaturization Design of assembly have difficulties again like this.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of communication equipment and loudspeaker and antenna module, can make antenna volume extra small, realizes the antenna characteristics of high radiation, multiband, ultrabroad band, and turns waste into wealth.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of loudspeaker and antenna module are provided, comprise small-sized sound chamber, described sound chamber comprises insulating support as cavity, be positioned at the loudspeaker in sound chamber and be positioned at antenna first radiant body on the insulating support, described loudspeaker comprise the audio frequency metal top cover as antenna second radiant body, the feedback point of described first radiant body is used to connect external distributing point and feedback place, constitute the PIFA antenna form, be provided with the first coupling slit between described first radiant body and second radiant body.
Wherein, comprise the 3rd radiant body, the feedback point of described the 3rd radiant body is used to connect external distributing point and feedback place, is provided with the second coupling slit between described first radiant body and the 3rd radiant body, constitutes dual frequency characteristics.
Wherein, described the 3rd radiant body comprises a plurality of microscler senders, and the length direction of described microscler sender is parallel to the described first coupling slit.
Wherein, described first, second, third radiant body is a stainless steel.
Wherein, the position of described sound chamber one surperficial corresponding loudspeaker is provided with bellmouth orifice, described audio frequency metal top cover is arranged in described bellmouth orifice, described first and third radiant body and bellmouth orifice are positioned at same surface, described first and third radiant body is one-body molded, and part is positioned at the side that is connected with described surface, and the top of described first and third radiant body is positioned at described side.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of communication equipment is provided, comprise loudspeaker and antenna module, PCB, described PCB comprises antenna feed point and feedback place, described loudspeaker and antenna module comprise small-sized sound chamber, described sound chamber comprises the insulating support as cavity, be positioned at the loudspeaker in sound chamber and be positioned at antenna first radiant body on the insulating support, described loudspeaker comprise the audio frequency metal top cover as antenna second radiant body, the feedback point of described first radiant body connects distributing point and the feedback place of described PCB, constitute the PIFA antenna form, be provided with the first coupling slit between described first radiant body and second radiant body.
Wherein, comprise the 3rd radiant body, the feedback point of described the 3rd radiant body connects distributing point and the feedback place of described PCB, is provided with the second coupling slit between described first radiant body and the 3rd radiant body, constitutes dual frequency characteristics.
Wherein, described the 3rd radiant body comprises a plurality of microscler senders, and the length direction of described microscler sender is parallel to the described first coupling slit.
Wherein, described first, second, third radiant body is a stainless steel.
Wherein, the position of described sound chamber one surperficial corresponding loudspeaker is provided with bellmouth orifice, described audio frequency metal top cover is arranged in described bellmouth orifice, described first and third radiant body and bellmouth orifice are positioned at same surface, described first and third radiant body is one-body molded, and part is positioned at the side that is connected with described surface, and the top of described first and third radiant body is positioned at described side.
The invention has the beneficial effects as follows: be different from the prior art built-in antenna arrangement and the influence of aerial radiation laid the primary radiation bar of antenna away from the loudspeaker of mobile phone for the reply loudspeaker, make the situation that the miniaturization Design of assembly has difficulties, the present invention is with the audio frequency metal top cover of the loudspeaker radiant body as antenna, and make design coupling slit between another antenna radiator on this radiant body and the loudspeaker sound chamber insulating support, through above-mentioned loudspeaker, antenna integrated design, can eliminate the negative effect of loudspeaker to aerial radiation, make full use of the metal of loudspeaker audio frequency metal top cover, turn waste into wealth, effectively increase the radiation and the frequency bandwidth of antenna, improve antenna gain and efficient; Distance shortens between antenna and the loudspeaker simultaneously, and antenna volume obtains reducing, and makes antenna and horn structure compact more, realizes extra small antenna volume, reduces material cost and production cost.
RL return loss of the present invention can be realized all meeting technique effect less than-6dB electric little built-in aerial and to use standard in 880-960MHz, 1710-1880MHz scope.
Description of drawings
Fig. 1 is the schematic perspective view of loudspeaker of the present invention and antenna module embodiment;
Fig. 2 is the three-dimensional exploded view of loudspeaker and antenna module embodiment among Fig. 1;
Fig. 3 is the vertical view of loudspeaker and antenna module embodiment among Fig. 1.
Embodiment
By describing technology contents of the present invention, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
See also Fig. 1, Fig. 2 and Fig. 3, loudspeaker of the present invention and antenna module embodiment comprise:
Small-sized sound chamber, described sound chamber comprise insulating support 11 as cavity, be positioned at the loudspeaker 12 in sound chamber and be positioned at antenna first radiant body 23 on the insulating support 11;
Described loudspeaker 12 comprise the audio frequency metal top cover 24 as antenna second radiant body, the feedback point of described first radiant body 23 is used to connect external distributing point and feedback place, constitute the PIFA antenna form, promptly inverse-F antenna is provided with the first coupling slit 42 between described first radiant body 23 and second radiant body.
The present invention is with the audio frequency metal top cover 24 of loudspeaker 12 radiant body as antenna, and make design coupling slit between another antenna radiator on this radiant body and the loudspeaker 12 sound chamber insulating supports 11, through above-mentioned loudspeaker 12, antenna integrated design, can eliminate the negative effect of 12 pairs of aerial radiations of loudspeaker, make full use of the metal of loudspeaker 12 audio frequency metal top covers 24, turn waste into wealth, effectively increase aerial radiation and frequency bandwidth, improve antenna gain and efficient; Distance shortens between antenna and the loudspeaker simultaneously, and antenna volume obtains reducing, and makes antenna and horn structure compact more, realizes extra small antenna volume, reduces material cost and production cost.
As seen, the present invention is fundamentally different than the method for No. 200610003364.0 disclosed raising handset antenna radiation efficiency of Chinese invention patent application, because in this patent application the auxiliary radiation bar in the antenna for mobile phone is laid near ferromagnetic material and iron hoop in the mobile phone loudspeaker, purpose only is the effect of expansion impedance matching frequency bandwidth, radiation gain is not improved in design coupling slit between auxiliary radiation bar and loudspeaker ferromagnetic material and iron hoop, and the present invention is under the prerequisite that guarantees loudspeaker volume and tonequality, make full use of the audio frequency metal top cover metal of loudspeaker, audio frequency metal top cover to loudspeaker designs, make it to become effective radiation source, and thereby radiation gain is improved in design coupling slit between this radiant body and another antenna radiator, technique effect is different fully, and the technical problem that is solved is also different; Crucial is, 200610003364.0 number patent application does not recognize that the audio frequency metal top cover that utilizes loudspeaker is as antenna radiator, and think that loudspeaker can produce negative effect to antenna, " the reply loudspeaker are laid the primary radiation bar of antenna the influence of aerial radiation away from the loudspeaker of mobile phone ", by contrast, it is considered herein that loudspeaker can produce positive effect to antenna, loudspeaker are turned waste into wealth, overcome technology prejudice, produced beyond thought technique effect.
Wherein, the coupling of first between described first radiant body 23 and second radiant body 24 slit 42 width methods for designing can be decided according to the actual design needs in the present invention with the design in coupling slit between the existing antenna radiator.
In other embodiments, loudspeaker of the present invention and antenna module can comprise the 3rd radiant body 22, the feedback point of described the 3rd radiant body 22 is used to connect external distributing point and feedback place, is provided with the second coupling slit 41 between described first radiant body 23 and the 3rd radiant body 22, constitutes dual frequency characteristics.The same compact conformation of this embodiment, volume are little, lower cost for material, broadband, high-gain, and are the double frequency sound chamber group built-in aerials (being commonly called as the BOX antenna) of louder volume, high tone quality.
Regulate the length of the one or three radiant body 23,22 and the resonance that required frequency band can be realized in the slit, the area of regulating second radiant body can increase the coupling with the one or three radiant body 23,22, improve radiation efficiency, regulate the gap of the first, the 3rd radiant body 23,22 and second radiant body 24, can increase frequency bandwidth, reach the purpose of extending bandwidth.
In another embodiment, described the 3rd radiant body 22 comprises a plurality of microscler senders 51, the length direction of described microscler sender 51 can be parallel to the coupling of first between described first radiant body 23 and second radiant body 24 slit 42, such structure meets the electromagnetism principle more, reduce of the influence of loudspeaker 12 magnet steel, and effectively increase aerial radiation antenna.
Wherein, described first, second, third radiant body 23,24,22 is a stainless steel.
In addition, the position of described sound chamber one surperficial corresponding loudspeaker 12 is provided with bellmouth orifice (not indicating), described audio frequency metal top cover 24 is arranged in described bellmouth orifice, described first and third radiant body 23,22 and bellmouth orifice are positioned at same surface, described first and third radiant body 23,22 is one-body molded, and part is positioned at the side that is connected with described surface, and the top 31 of described first and third radiant body 23,22 is positioned at described side.
The RL return loss of the invention described above embodiment can be realized all meeting technique effect less than-6dB electric little built-in aerial and to use standard in 880-960MHz, 1710-1880MHz scope.
Also consult Fig. 1 to Fig. 3, the present invention also provides a kind of communication equipment, comprising:
Loudspeaker and antenna module, PCB (figure does not show), described PCB comprises antenna feed point and feedback place;
Described loudspeaker and antenna module comprise small-sized sound chamber, and described sound chamber comprises insulating support 11 as cavity, be positioned at the loudspeaker 12 in sound chamber and be positioned at antenna first radiant body 23 on the insulating support 11; Described insulating support 11 can be a plastic rubber bracket;
Described loudspeaker 12 comprise the audio frequency metal top cover 24 as antenna second radiant body, the feedback point of described first radiant body 23 connects distributing point and the feedback place of described PCB, constitute the PIFA antenna form, be provided with the first coupling slit 42 between described first radiant body 23 and second radiant body.
Wherein, can comprise the 3rd radiant body 22, the feedback point of described the 3rd radiant body 22 connects distributing point and the feedback place of described PCB, is provided with the second coupling slit 41 between described first radiant body 23 and the 3rd radiant body 22, constitutes dual frequency characteristics.
Wherein, described the 3rd radiant body 22 comprises a plurality of microscler senders 51, and the length direction of described microscler sender 51 can be parallel to the coupling of first between described first radiant body 23 and second radiant body 24 slit 42.
Wherein, described first, second, third radiant body 23,24,22 is a stainless steel, certainly, can also be other metal materials.
Wherein, position that can described sound chamber one surperficial corresponding loudspeaker 12 is provided with bellmouth orifice, described audio frequency metal top cover 24 is arranged in described bellmouth orifice, described first and third radiant body 23,22 and bellmouth orifice are positioned at same surface, described first and third radiant body 23,22 is one-body molded, and part is positioned at the side that is connected with described surface, and the top 31 of described first and third radiant body 23,22 is positioned at described side.
Described communication equipment can be equipment such as mobile phone, PDA.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. loudspeaker and antenna module, it is characterized in that, comprise small-sized sound chamber, described sound chamber comprises insulating support as cavity, be positioned at the loudspeaker in sound chamber and be positioned at antenna first radiant body on the insulating support, described loudspeaker comprise the audio frequency metal top cover as antenna second radiant body, the feedback point of described first radiant body is used to connect external distributing point and feedback place, constitutes the PIFA antenna form, is provided with the first coupling slit between described first radiant body and second radiant body.
2. loudspeaker according to claim 1 and antenna module, it is characterized in that: comprise the 3rd radiant body, the feedback point of described the 3rd radiant body is used to connect external distributing point and feedback place, is provided with the second coupling slit between described first radiant body and the 3rd radiant body, constitutes dual frequency characteristics.
3. loudspeaker according to claim 2 and antenna module is characterized in that: described the 3rd radiant body comprises a plurality of microscler senders, and the length direction of described microscler sender is parallel to the described first coupling slit.
4. loudspeaker according to claim 3 and antenna module is characterized in that: described first, second, third radiant body is a stainless steel.
5. loudspeaker according to claim 4 and antenna module, it is characterized in that: the position of described sound chamber one surperficial corresponding loudspeaker is provided with bellmouth orifice, described audio frequency metal top cover is arranged in described bellmouth orifice, described first and third radiant body and bellmouth orifice are positioned at same surface, described first and third radiant body is one-body molded, and part is positioned at the side that is connected with described surface, and the top of described first and third radiant body is positioned at described side.
6. communication equipment, comprise loudspeaker and antenna module, PCB, described PCB comprises antenna feed point and feedback place, it is characterized in that, described loudspeaker and antenna module comprise small-sized sound chamber, described sound chamber comprises the insulating support as cavity, be positioned at the loudspeaker in sound chamber and be positioned at antenna first radiant body on the insulating support, described loudspeaker comprise the audio frequency metal top cover as antenna second radiant body, the feedback point of described first radiant body connects distributing point and the feedback place of described PCB, constitute the PIFA antenna form, be provided with the first coupling slit between described first radiant body and second radiant body.
7. communication equipment according to claim 6, it is characterized in that: comprise the 3rd radiant body, the feedback point of described the 3rd radiant body connects distributing point and the feedback place of described PCB, is provided with the second coupling slit between described first radiant body and the 3rd radiant body, constitutes dual frequency characteristics.
8. communication equipment according to claim 7 is characterized in that: described the 3rd radiant body comprises a plurality of microscler senders, and the length direction of described microscler sender is parallel to the described first coupling slit.
9. communication equipment according to claim 8 is characterized in that: described first, second, third radiant body is a stainless steel.
10. communication equipment according to claim 9, it is characterized in that: the position of described sound chamber one surperficial corresponding loudspeaker is provided with bellmouth orifice, described audio frequency metal top cover is arranged in described bellmouth orifice, described first and third radiant body and bellmouth orifice are positioned at same surface, described first and third radiant body is one-body molded, and part is positioned at the side that is connected with described surface, and the top of described first and third radiant body is positioned at described side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910238846 CN101719586B (en) | 2009-12-29 | 2009-12-29 | Communication device, horn and antenna assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910238846 CN101719586B (en) | 2009-12-29 | 2009-12-29 | Communication device, horn and antenna assembly thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101719586A true CN101719586A (en) | 2010-06-02 |
| CN101719586B CN101719586B (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910238846 Active CN101719586B (en) | 2009-12-29 | 2009-12-29 | Communication device, horn and antenna assembly thereof |
Country Status (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124514A (en) * | 2014-08-08 | 2014-10-29 | 深圳市中兴移动通信有限公司 | Antenna assembly and mobile terminal |
| CN104409850A (en) * | 2014-10-13 | 2015-03-11 | 歌尔声学股份有限公司 | Structure utilizing terminal telephone receiver as antenna |
| WO2015192459A1 (en) * | 2014-06-19 | 2015-12-23 | 中兴通讯股份有限公司 | Terminal |
| CN108232409A (en) * | 2018-01-25 | 2018-06-29 | 上海闻泰电子科技有限公司 | Antenna module and Portable intelligent terminal |
| CN108963428A (en) * | 2018-06-13 | 2018-12-07 | 瑞声精密制造科技(常州)有限公司 | antenna system and mobile terminal |
| CN113630488A (en) * | 2021-08-17 | 2021-11-09 | 安徽安努奇科技有限公司 | Sound cavity support and terminal equipment |
| CN113675587A (en) * | 2020-05-15 | 2021-11-19 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9827537D0 (en) * | 1998-12-15 | 1999-02-10 | Wharfedale International Limit | Loudspeaker |
| FI115339B (en) * | 2001-06-29 | 2005-04-15 | Filtronic Lk Oy | Arrangement for integrating the antenna end of the radiotelephone |
| CN101075823A (en) * | 2007-06-29 | 2007-11-21 | 中兴通讯股份有限公司南京分公司 | Antenna set on cell-phone mainboard, its mainboard and cell phone |
| CN101232124A (en) * | 2008-01-11 | 2008-07-30 | 邱小军 | Method for making near-field communication aerial |
-
2009
- 2009-12-29 CN CN 200910238846 patent/CN101719586B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015192459A1 (en) * | 2014-06-19 | 2015-12-23 | 中兴通讯股份有限公司 | Terminal |
| CN104124514A (en) * | 2014-08-08 | 2014-10-29 | 深圳市中兴移动通信有限公司 | Antenna assembly and mobile terminal |
| CN104409850A (en) * | 2014-10-13 | 2015-03-11 | 歌尔声学股份有限公司 | Structure utilizing terminal telephone receiver as antenna |
| CN104409850B (en) * | 2014-10-13 | 2017-09-26 | 歌尔股份有限公司 | The structure of antenna is used as by the use of terminal receiver |
| CN108232409A (en) * | 2018-01-25 | 2018-06-29 | 上海闻泰电子科技有限公司 | Antenna module and Portable intelligent terminal |
| CN108963428A (en) * | 2018-06-13 | 2018-12-07 | 瑞声精密制造科技(常州)有限公司 | antenna system and mobile terminal |
| US11108132B2 (en) | 2018-06-13 | 2021-08-31 | AAC Technologies Pte. Ltd. | Antenna system and mobile terminal using same |
| CN113675587A (en) * | 2020-05-15 | 2021-11-19 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
| CN113675587B (en) * | 2020-05-15 | 2022-10-25 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
| CN113630488A (en) * | 2021-08-17 | 2021-11-09 | 安徽安努奇科技有限公司 | Sound cavity support and terminal equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101719586B (en) | 2012-12-12 |
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Application publication date: 20100602 Assignee: SHENZHEN YINWOSHI TECHNOLOGY CO., LTD. Assignor: Shenzhen Sunway Communication Co., Ltd. Contract record no.: 2015440020375 Denomination of invention: Communication device, horn and antenna assembly thereof Granted publication date: 20121212 License type: Exclusive License Record date: 20151207 |
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Effective date of registration: 20151231 Address after: 518000 Guangdong Province, Shenzhen city Baoan District manhole Street Xihuan Road No. 1013 Patentee after: SHENZHEN YINWOSHI TECHNOLOGY CO., LTD. Address before: 518000, building 9, Changxin hi tech Industrial Park, Sha ten thousand Road, Baoan District, Shenzhen, Guangdong Patentee before: Shenzhen Sunway Communication Co., Ltd. |
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Address after: 518000 Guangdong Province, Shenzhen city Baoan District manhole Street Xihuan Road No. 1013 Patentee after: Shenzhen Sunway Acoustics Technology Co Ltd Address before: 518000 Guangdong Province, Shenzhen city Baoan District manhole Street Xihuan Road No. 1013 Patentee before: SHENZHEN YINWOSHI TECHNOLOGY CO., LTD. |
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Address after: 413000 building K1, standardized workshop, East Industrial Park, high tech Zone, Yiyang City, Hunan Province Patentee after: Yiyang Xinwei Acoustic Technology Co., Ltd Address before: 518000, No. 1013, West Ring Road, manhole street, Baoan District, Guangdong, Shenzhen Patentee before: SHENZHEN SUNWAY ACOUSTICS TECHNOLOGY Co.,Ltd. |