CN103731774A - Method for interference prevention of bluetooth headset antenna and bluetooth headset - Google Patents
Method for interference prevention of bluetooth headset antenna and bluetooth headset Download PDFInfo
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- CN103731774A CN103731774A CN201410034880.4A CN201410034880A CN103731774A CN 103731774 A CN103731774 A CN 103731774A CN 201410034880 A CN201410034880 A CN 201410034880A CN 103731774 A CN103731774 A CN 103731774A
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Abstract
The invention discloses a method for interference prevention of a bluetooth headset antenna and a bluetooth headset. The method for interference prevention of the bluetooth headset antenna comprises a connecting wire following direction arranging step and a connecting wire outlet point arranging step, wherein the connecting wire following direction arranging step comprises the substeps of determining the direction of a bluetooth antenna and arranging the wire following direction of a connecting wire connected with a PCB so that the wire following direction is perpendicular to the direction of the bluetooth antenna; and the connecting wire outlet point arranging step comprises the substeps of enabling a wire outlet point to be a welding point of the connecting wire on the PCB and enabling the vertical distance between the wire outlet point and a clearance area of the bluetooth antenna to be no less than 5mm. According to the method for interference prevention of the bluetooth headset antenna, by enabling the connecting wire to be perpendicular to the antenna, the influence of the connecting wire on the antenna can be effectively reduced; and enabling the vertical distance between the wire outlet point of the connecting wire and the clearance area of the bluetooth antenna to be no less than 5mm, interference in the bluetooth antenna caused by the connecting wire can be further reduced.
Description
Technical field
The invention belongs to earphone technical field, specifically, relate to a kind of bluetooth earphone antenna anti-interference method and bluetooth earphone.
Background technology
Along with the function of bluetooth earphone is more and more, for example automatic inductive switch machine, noise reduction technology etc., in order to meet these functional requirements, in earphone, needing to arrange increasing electronic device realizes, these electronic devices need to be connected with pcb board, therefore in earphone, there is a large amount of connecting lines, during earphone work, connecting line all has current signal transfer, the spatial distribution of these connecting line complexity can have influence on the performance of Bluetooth antenna, or affect radio-frequency performance as passive antenna, cause earphone signal transmission unstable.
Summary of the invention
The present invention is subject to the problem of the serious interference that connects electric wire in order to solve existing bluetooth earphone antenna.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of bluetooth earphone antenna anti-interference method, comprises the following steps:
Connect the fair line direction deposition step of electric wire: determine the direction of Bluetooth antenna, arrange the fair line direction that is connected electric wire being connected with PCB circuit board, it is met vertical with the direction of described Bluetooth antenna;
Connect the outlet point setting steps of electric wire: described outlet point is for connecting the pad of electric wire on PCB circuit board, and the vertical range of the empty regions of this outlet point and Bluetooth antenna is not less than 5mm.
Further, described bluetooth earphone is the earphone with monaural structure, described connection electric wire comprises that long-range connection electric wire is connected electric wire with short range, and described long-range connection electric wire is for connection PCB circuit board and be positioned at the PCB circuit board electronic device including battery simultaneously; Described short range connects electric wire for connection PCB circuit board and the electronic device including horn single body that is positioned at PCB circuit board another side; The fair line direction method for arranging of described long-range connection electric wire is: all long-range connection wiring harnesses are become to one wire harness, described wire harness is carried out to bending and unroll into snakelike wire laying mode, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna.
Further, described bluetooth earphone is the earphone with ears structure, described PCB circuit board is positioned at a wherein ear structure, described connection electric wire comprises that long-range connection electric wire is connected electric wire with short range, described long-range connection electric wire is for the electronic device in connection PCB circuit board and an other ear structure, described short range connects electric wire and is positioned at the electronic device of same ear structure for connection PCB circuit board with PCB circuit board, the fair line direction method for arranging of described long-range connection electric wire is: all long-range connection wiring harnesses are become to one wire harness, described wire harness is carried out to bending and unroll into snakelike wire laying mode, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna.
Preferably, the distance between the adjacent long edges of described snakelike wire harness is less than 3 times of values of beam diameter.
Preferably, the region that the outlet point of long-range connection electric wire distributes is no more than 1/4 of the PCB circuit board gross area.
Preferably, all long-range connection electric wires become one wire harness by insulation rubber sleeve bundle.
Preferably, the fair line direction method for arranging that described short range connects electric wire for: short range is connected to all electron device package that electric wire connects and forms loadspeaker structure body together, reverse described loadspeaker structure body, short range is connected to electric wire winding and become one, adjust the position of kink point, make fair line direction that all short ranges connect electric wires vertical with the direction of described Bluetooth antenna.
Based on above-mentioned a kind of bluetooth earphone antenna anti-interference method, the present invention provides a kind of bluetooth earphone simultaneously, comprise electronic device, PCB circuit board and connect electric wire, described electronic device is connected with described PCB circuit board by connecting electric wire, connecting the pad of electric wire on described PCB circuit board is outlet point, it is characterized in that, the fair line direction of described connection electric wire is vertical with the direction of Bluetooth antenna, and the vertical range of the empty regions of described outlet point and Bluetooth antenna is not less than 5mm.
Further, described bluetooth earphone is the earphone with monaural structure, described connection electric wire comprises that long-range connection electric wire is connected electric wire with short range, and described long-range connection electric wire is for connection PCB circuit board and be positioned at the PCB circuit board electronic device including battery simultaneously, described short range connects electric wire for connection PCB circuit board and the electronic device including horn single body that is positioned at PCB circuit board another side, the fair line direction method for arranging of described long-range connection electric wire is: all long-range connection wiring harnesses are become to one wire harness, described wire harness is carried out to bending and unroll into snakelike wire laying mode, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna, or, described bluetooth earphone is the earphone with ears structure, described connection electric wire comprises that long-range connection electric wire is connected electric wire with short range, described PCB circuit board is positioned at a wherein ear structure, described long-range connection electric wire is for connection PCB circuit board and be arranged on the electronic device in an other ear structure, described short range connects electric wire and is positioned at the electronic device of same ear structure for connection PCB circuit board with PCB circuit board, all long-range connection wiring harnesses become one wire harness, the housing inner side of PCB circuit board place ear structure is installed with several wiring harness fasteners, wire harness unrolls after going into one section of snakelike cabling and enters top news by the hole of offering on described housing around wiring harness fastener bending, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna.
Preferably, the distance between the adjacent long edges of described snakelike wire harness is less than 3 times of values of beam diameter; The region that the outlet point of long-range connection electric wire distributes is no more than 1/4 of the PCB circuit board gross area; Described short range connects all electron device package that electric wire connects and forms loadspeaker structure body together, described loadspeaker structure body be positioned at short range connect electric wire outlet point directly over.
Compared with prior art, advantage of the present invention and good effect are: bluetooth earphone antenna anti-interference method of the present invention, by layout, connect that electric wire is vertical with antenna to be placed, can effectively reduce the impact that connects wire pair antenna, while being not less than 5mm by the vertical range of the connection outlet point of electric wire and the empty regions of Bluetooth antenna is set, can further reducing to connect wire pair Bluetooth antenna and disturb.Adopt snakelike wire laying mode, be conducive to save wire harness and take up room, and the long-range connection electric wire of growing distance that makes of maximization meets the condition vertical with Bluetooth antenna.
Read by reference to the accompanying drawings after the detailed description of embodiment of the present invention, it is clearer that the other features and advantages of the invention will become.
Accompanying drawing explanation
Fig. 1 is the Headphone structure schematic diagram adopting in a kind of bluetooth earphone antenna anti-interference method proposed by the invention;
Fig. 2 is the internal structure schematic diagram of auris dextra structure 2 in Fig. 1;
Fig. 3 is the front schematic view of PCB circuit board 4 in Fig. 2;
Fig. 4 is that the fair line direction of long-range connection electric wire 6 is arranged schematic diagram;
Fig. 5 is the fair line direction layout schematic diagram that short range connects electric wire 5;
Fig. 6 is that in Fig. 5, short range connects the design sketch that electric wire 5 arranges;
Fig. 7 connects electric wire outlet point layout area schematic diagram in Fig. 4;
Fig. 8 is the housing inside structure schematic diagram of auris dextra structure 2 in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in more detail.
In order to solve, in existing bluetooth earphone technology, owing to connecting, electric wire is more and arrangement mode is mixed and disorderly in the present invention, in electric wire, electric current formed electromagnetic field can disturb the problem of Bluetooth antenna normal working performance, a kind of bluetooth earphone antenna anti-interference method is provided, has comprised the following steps:
Connect the fair line direction deposition step of electric wire: determine the direction of Bluetooth antenna, arrange the fair line direction that is connected electric wire being connected with PCB circuit board, it is met vertical with the direction of described Bluetooth antenna;
Connect the outlet point setting steps of electric wire: described outlet point is for connecting the pad of electric wire on PCB circuit board, and the vertical range of the empty regions of this outlet point and Bluetooth antenna is not less than 5mm.
It is very difficult wanting to eliminate completely the impact that connects wire pair antenna, and the present invention can reduce the impact that connects wire pair antenna as far as possible, and the principle of institute's foundation is: when two antennas are vertically placed, impact is each other minimum.Therefore, in the present invention by connecting the fair line direction of electric wire and vertical placement of direction of Bluetooth antenna, reduced greatly to connect the impact of wire pair Bluetooth antenna, by the outlet point that connects electric wire being set as far as possible away from the empty regions of Bluetooth antenna, play and further reduce to connect the effect that wire pair Bluetooth antenna disturbs, experiment shows, when the vertical range of the empty regions of outlet point and Bluetooth antenna is not less than 5mm, disturbs and effectively reduced.
Take bi-telephone as example, because earphone comprises ears structure, in each ear structure, be generally provided with the electronic device of realizing required function, PCB circuit board is arranged in one of them ear structure, therefore, described connection electric wire comprises that long-range connection electric wire is connected electric wire with short range, long-range connection electric wire is for the electronic device in connection PCB circuit board and an other ear structure, short range connects electric wire and is positioned at the electronic device of same ear structure for connection PCB circuit board with PCB circuit board, for convenient welding and assembling, connection electric wire is more than the distance length of PCB circuit board and each electronic device, especially be positioned at the connection electric wire of the electronic device of different ear structures from PCB circuit board, physical length can be longer, therefore, long-range connection electric wire is connected the fair line direction of electric wire and arranges also corresponding slightly different with short range.Concrete mode is as follows:
The fair line direction method for arranging of long-range connection electric wire is: all long-range connection wiring harnesses are become to one wire harness, described wire harness is carried out to bending and unroll into snakelike wire laying mode, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna.The fair line direction method for arranging that short range connects electric wire is: together with all electron device package that is positioned at same ear structure with PCB circuit board, form loadspeaker structure body, reverse described loadspeaker structure body, short range connects electric wire winding and becomes one, adjust the position of kink point, make fair line direction that all short ranges connect electric wires vertical with the direction of described Bluetooth antenna.Adopt snakelike wire laying mode, be conducive to save wire harness and take up room, and the long-range connection electric wire that meets longer distance of maximization is vertical with Bluetooth antenna.
Will be take a kind of bluetooth bitelephone as example in the present embodiment, operation principle of the present invention is elaborated, wherein, referring to Fig. 1, earphone in the present embodiment comprises left ear structure 1 and auris dextra structure 2, also comprise battery, LED lamp, Mike, left ear loud speaker, right ear speakers and PCB circuit board, also comprise the transducer for noise reduction, wherein, battery, LED lamp, left ear loud speaker is arranged in left ear structure 1, PCB circuit board, Mike, right ear speakers and sensor setting are in auris dextra structure 2, battery in left ear structure 1, LED lamp, left ear loud speaker connects electric wire and is connected with the PCB circuit board in auris dextra structure 2 through top news 3, top news 3 is for connecting described left ear structure 1 and auris dextra structure 2.Fig. 2 shows the internal structure schematic diagram of auris dextra structure 2, comprise PCB circuit board 4, Mike, right ear speakers and transducer are fixedly installed on 21 places, position in auris dextra structure 2, above-mentioned electronic device connects electric wire 5 by short range and is connected with the front of PCB circuit board 4, from the top news 3 long-range connection electric wires 6 that pass, is connected with the back side of PCB circuit board 4.
In the fair line direction deposition step of connection electric wire, shown in Figure 3, first determine the direction of Bluetooth antenna 7 on PCB circuit board, lines 9 are the lines of demarcation in antenna headroom district, on lines 9, part belongs to antenna headroom district, shown in Figure 4, for the fair line direction arrangement of long-range connection electric wire 6, all long-range connection wiring harnesses are become to one wire harness 8, described wire harness 8 is carried out to bending and unroll into snakelike wire laying mode (be wire harness 8 each lay after certain length double flat in the overall direction of advance of wire harness 8), between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna 7.In the outlet point setting steps of connection electric wire, the outlet point 13 that connects electric wire is not less than 5mm with the vertical range of the empty regions of Bluetooth antenna, for example, be 5mm～10mm, to reduce to connect the impact of wire pair Bluetooth antenna.In order to save taking up room of wire harness 8, the distance between the adjacent long edges of snakelike wire harness 8 is less than 3 times of values of beam diameter.And all long-range connection electric wires 6 preferably adopt flexible tool insulation rubber sleeve bundle springy to become one wire harness, are convenient to wire harness 8 bendings and unroll.
Shown in Figure 5, short range connects the fair line direction method for arranging of electric wire 5: the electronic device that all and PCB circuit board is positioned to same ear structure (comprises Mike in the present embodiment, right ear speakers, and transducer) being packaged together forms loadspeaker structure body 10, reverse described loadspeaker structure body 10, short range connects electric wire 5 and twists together into one, adjust the position of kink point 11, make fair line direction that all short ranges connect electric wires 5 vertical with the direction of described Bluetooth antenna 7, shown in Figure 6, can see that short range connects the fair line direction of electric wire 5 and the direction of Bluetooth antenna 7 is substantially vertical.As a same reason, the vertical range of the short range connection outlet point of electric wire 5 and the empty regions of Bluetooth antenna also arranges and is not less than 5mm, to reduce to connect the impact of wire pair Bluetooth antenna.
Shown in Figure 7, for the ease of fair line, reduce the process complexity of fair line, the region A that the outlet point of connection electric wire distributes is preferably no more than 1/4 of the PCB circuit board gross area.Shown in table 1 and table 2, earphone power before having provided the method for using the present embodiment and afterwards and the experimental data of earphone sensitivity, wherein, each meaning of parameters is: Channel is antenna frequency, TRP (total radiated power) is antenna total radiant power, TIS(total istropic sensitivity) be antenna total omnidirectional sensitivity, Gain is antenna gain, Directivity is antenna directivity, and Efficiency is antenna radiation efficiency.
Table 1 is the experimental data through before the method device:
Table 1
Table 2 is the experimental data after the method device:
Table 2
Known by contrast table 1 and table 2, more than the power of earphone has improved 3dB, the sensitivity optimization of earphone more than 3dB.
Embodiment bis-, based on a kind of bluetooth earphone antenna anti-interference method in embodiment mono-, the present embodiment provides a kind of bluetooth earphone, shown in Fig. 1-Fig. 7, comprise left ear structure 1 and auris dextra structure 2, be arranged at the electronic device in described two oyster mushroom structures, wherein in an oyster mushroom structure, be provided with PCB circuit board 4, electronic device is connected with PCB circuit board 4 by connecting electric wire, connecting the pad of electric wire on described PCB circuit board is outlet point, the fair line direction that connects electric wire is vertical with the direction of Bluetooth antenna 7, the vertical range of the empty regions of described outlet point and Bluetooth antenna 7 is not less than 5mm.In embodiment mono-, the structure that can realize this bluetooth earphone is specifically described, at this, do not repeat.
Wherein, connect electric wire and comprise that long-range connection electric wire 6 is connected electric wire 5 with short range, long-range connection electric wire 6 is for connection PCB circuit board 4 and be arranged on the electronic device in an other ear structure, short range connects electric wire 5 and is positioned at the electronic device of same ear structure for connection PCB circuit board 4 with PCB circuit board 4, all long-range connection wiring harnesses become one wire harness 8, shown in Figure 8, for convenient constraint wire harness 8, the housing inner side of PCB circuit board 4 place ear structures is installed with several wiring harness fasteners 12, wire harness 8 unrolls to go into as shown in Figure 4 around wiring harness fastener 12 bendings and by the hole 14 of offering on described housing, enters top news 3 after one section of snakelike cabling, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna.
Shown in Figure 5, together with all electron device package that are positioned at same ear structure with PCB circuit board 4, form loadspeaker structure body 10, described loadspeaker structure body 10 be positioned at short range connect electric wire 5 outlet point directly over, so between the two nearest, is conducive to shorten the length that connects electric wire.
Embodiment tri-, the bluetooth earphone that the present embodiment provides is the earphone with monaural structure, included electronic device is similar to bi-telephone, but be all arranged in an ear structure and these electronic devices are divided into the two sides of PCB circuit board, connection electric wire in earphone comprises that long-range connection electric wire is connected electric wire with short range, different from bi-telephone in embodiment mono-, the long-range connection electric wire in the present embodiment is for connection PCB circuit board and be positioned at the PCB circuit board electronic device including battery simultaneously; Short range connects electric wire for connection PCB circuit board and the electronic device including horn single body that is positioned at PCB circuit board another side; Same principle, the fair line direction method for arranging that the present embodiment medium-long range connects electric wire is identical with embodiment mono-medium-long range connection electric wire wiring principle, shown in Figure 4, process is: all long-range connection wiring harnesses are become to one wire harness, described wire harness is carried out to bending and unroll into snakelike wire laying mode, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna.The fair line direction method for arranging of the short range connection electric wire of this single head-receiver is similar with the mode in embodiment mono-, shown in Fig. 5-Fig. 6, process for: short range is connected to all electron device package that electric wire connects and forms loadspeaker structure body 10 together, reverse described loadspeaker structure body 10, short range is connected to electric wire winding and become one, adjust the position of kink point 11, make fair line direction that all short ranges connect electric wires vertical with the direction of described Bluetooth antenna.
Certainly; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art make in essential scope of the present invention, also should belong to protection scope of the present invention.
Claims (10)
1. a bluetooth earphone antenna anti-interference method, is characterized in that, comprises the following steps:
Connect the fair line direction deposition step of electric wire: determine the direction of Bluetooth antenna, arrange the fair line direction that is connected electric wire being connected with PCB circuit board, it is met vertical with the direction of described Bluetooth antenna;
Connect the outlet point setting steps of electric wire: described outlet point is for connecting the pad of electric wire on PCB circuit board, and the vertical range of the empty regions of this outlet point and Bluetooth antenna is not less than 5mm.
2. bluetooth earphone antenna anti-interference method according to claim 1, it is characterized in that, described bluetooth earphone is the earphone with monaural structure, described connection electric wire comprises that long-range connection electric wire is connected electric wire with short range, and described long-range connection electric wire is for connection PCB circuit board and be positioned at the PCB circuit board electronic device including battery simultaneously; Described short range connects electric wire for connection PCB circuit board and the electronic device including horn single body that is positioned at PCB circuit board another side; The fair line direction method for arranging of described long-range connection electric wire is: all long-range connection wiring harnesses are become to one wire harness, described wire harness is carried out to bending and unroll into snakelike wire laying mode, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna.
3. bluetooth earphone antenna anti-interference method according to claim 1, it is characterized in that, described bluetooth earphone is the earphone with ears structure, described PCB circuit board is positioned at a wherein ear structure, described connection electric wire comprises that long-range connection electric wire is connected electric wire with short range, described long-range connection electric wire is for the electronic device in connection PCB circuit board and an other ear structure, described short range connects electric wire and is positioned at the electronic device of same ear structure for connection PCB circuit board with PCB circuit board, the fair line direction method for arranging of described long-range connection electric wire is: all long-range connection wiring harnesses are become to one wire harness, described wire harness is carried out to bending and unroll into snakelike wire laying mode, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna.
4. according to the bluetooth earphone antenna anti-interference method described in claim 2 or 3, it is characterized in that, the distance between the adjacent long edges of described snakelike wire harness is less than 3 times of values of beam diameter.
5. according to the bluetooth earphone antenna anti-interference method described in claim 2 or 3, it is characterized in that, the region that the outlet point of long-range connection electric wire distributes is no more than 1/4 of the PCB circuit board gross area.
6. according to the bluetooth earphone antenna anti-interference method described in claim 2 or 3, it is characterized in that, all long-range connection electric wires become one wire harness by insulation rubber sleeve bundle.
7. according to the bluetooth earphone antenna anti-interference method described in claim 2 or 3, it is characterized in that, the fair line direction method for arranging that described short range connects electric wire for: short range is connected to all electron device package that electric wire connects and forms loadspeaker structure body together, reverse described loadspeaker structure body, short range is connected to electric wire winding and become one, adjust the position of kink point, make fair line direction that all short ranges connect electric wires vertical with the direction of described Bluetooth antenna.
8. a bluetooth earphone, comprise electronic device, PCB circuit board and connect electric wire, described electronic device is connected with described PCB circuit board by connecting electric wire, connecting the pad of electric wire on described PCB circuit board is outlet point, it is characterized in that, the fair line direction of described connection electric wire is vertical with the direction of Bluetooth antenna, and the vertical range of the empty regions of described outlet point and Bluetooth antenna is not less than 5mm.
9. bluetooth earphone according to claim 7, it is characterized in that, described bluetooth earphone is the earphone with monaural structure, described connection electric wire comprises that long-range connection electric wire is connected electric wire with short range, and described long-range connection electric wire is for connection PCB circuit board and be positioned at the PCB circuit board electronic device including battery simultaneously, described short range connects electric wire for connection PCB circuit board and the electronic device including horn single body that is positioned at PCB circuit board another side, the fair line direction method for arranging of described long-range connection electric wire is: all long-range connection wiring harnesses are become to one wire harness, described wire harness is carried out to bending and unroll into snakelike wire laying mode, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna, or, described bluetooth earphone is the earphone with ears structure, described connection electric wire comprises that long-range connection electric wire is connected electric wire with short range, described PCB circuit board is positioned at a wherein ear structure, described long-range connection electric wire is for connection PCB circuit board and be arranged on the electronic device in an other ear structure, described short range connects electric wire and is positioned at the electronic device of same ear structure for connection PCB circuit board with PCB circuit board, all long-range connection wiring harnesses become one wire harness, the housing inner side of PCB circuit board place ear structure is installed with several wiring harness fasteners, wire harness unrolls after going into one section of snakelike cabling and enters top news by the hole of offering on described housing around wiring harness fastener bending, between the each long limit of snakelike wire harness, be parallel to each other and vertical with the direction of described Bluetooth antenna.
10. bluetooth earphone according to claim 9, is characterized in that, the distance between the adjacent long edges of described snakelike wire harness is less than 3 times of values of beam diameter; The region that the outlet point of long-range connection electric wire distributes is no more than 1/4 of the PCB circuit board gross area; Described short range connects all electron device package that electric wire connects and forms loadspeaker structure body together, described loadspeaker structure body be positioned at short range connect electric wire outlet point directly over.
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| CN110446134A (en) * | 2019-08-16 | 2019-11-12 | 歌尔股份有限公司 | Wireless headset |
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| Publication number | Publication date |
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| CN103731774B (en) | 2017-07-14 |
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