CN209659299U

CN209659299U - Communicating circuit, double antenna earphone and the mobile terminal of double antenna earphone

Info

Publication number: CN209659299U
Application number: CN201920245827.7U
Authority: CN
Inventors: 陈少龙; 吴海全; 贺旭明; 彭久高; 师瑞文
Original assignee: Shenzhen Grandsun Electronics Co Ltd
Current assignee: Shenzhen Grandsun Electronics Co Ltd
Priority date: 2019-02-26
Filing date: 2019-02-26
Publication date: 2019-11-19
Anticipated expiration: 2029-02-26

Abstract

A kind of communicating circuit of double antenna earphone, double antenna earphone and mobile terminal, the communicating circuit of the double antenna earphone include: the control module for being configured as generating rf communication signal；It is connect with control module, is configured as being balanced rf communication signal the balance conversion module of conversion, balance transmission；And connect with balance conversion module, it is configured as the Anneta module according to the rf communication signal receiving and transmitting signal after balance conversion；Wherein, Anneta module includes first antenna and the second antenna, and first antenna and the second antenna are arranged in double antenna earphone, and the radiation parameter of both first antenna and second antenna is consistent；Therefore the communicating circuit of double antenna earphone by first antenna and the second antenna equalisation transmitting two paths audio signal in the utility model embodiment, improves the audio quality of double antenna earphone, user's audio experience is more preferably.

Description

Communicating circuit, double antenna earphone and the mobile terminal of double antenna earphone

Technical field

The utility model belongs to earphone field of communication technology more particularly to a kind of communicating circuit of double antenna earphone, double days Line earphone and mobile terminal.

Background technique

With the development of electronic industry, the electronic products such as smart phone, tablet computer oneself be widely used in the day of people Often in life；Important accessory of the earphone as above-mentioned electronic product, application are more and more common；Earphone can be real in electronic product The functions such as existing voice messaging transmitting and transmission of speech information, when people wear the earphone, user can be real-time by earphone Extraneous voice content is obtained, brings good audiovisual experience, the earphone transmission of speech information with higher to user Can, bigger applicable performance is brought by the function of the earphone electron product, the life and work to user are also brought It is great convenient；Therefore earphone has become the essential communication equipment of speech signal analysis, and ear phone technology Fast-developing functional complexity and its intelligence for promoting related electronic products will also play extremely important effect, ear The development of the machine communication technology has become the important research hot spot of current voice technology development.

In current ear phone technology development trend, earphone is fast-developing progressively towards the practical aspect such as light, small and exquisite, and And in order to realize more earphone communication quality, technical staff uses dual signal transmission channel in traditional earphone communication system The transmission for realizing voice signal, so that the distance of the transmission of speech information of earphone is farther and power is higher, therefore traditional technology In earphone communicating circuit generally use two-channel transmission mode, related electronic products have more preferably transmission of speech information Energy；However it is unbalanced from the transmission of speech information in the double-channel in traditional technology, there are larger for the communication structure design of earphone Defect, for example signal in a bars transmission channel is easy to be interfered, and signal quality is poor, and another bars transmission is logical Signal quality in road is preferable, the communication quality of two path channels of earphone be it is different, the voice signal of earphone is in not Tongfang To radiance it is not identical, the auditory effect of user is bad, reduces the voice quality of earphone.

Utility model content

In view of this, the utility model embodiment provide the communicating circuit of double antenna earphone a kind of, double antenna earphone and Mobile terminal, it is intended to solve the problems, such as that the voice quality of earphone in traditional technical solution is bad.

The first aspect of the utility model embodiment provides a kind of communicating circuit of double antenna earphone, comprising:

It is configured as generating the control module of rf communication signal；

It is connect with the control module, is configured as being balanced the rf communication signal conversion, balance transmission Balance conversion module；And

It connect, is configured as according to the rf communication signal transmitting-receiving letter after the balance conversion with the balance conversion module Number Anneta module；

Wherein, the Anneta module includes first antenna and the second antenna, and the first antenna and second antenna are set It sets in double antenna earphone, the radiation parameter of both the first antenna and described second antenna is consistent.

In one of them embodiment, the balance conversion module includes:

It is connect with the control module, is configured as being balanced the rf communication signal and is converted to the first via and penetrates First Balun converter of frequency signal of communication and the second road rf communication signal；

It is connected between the first Balun converter and the first antenna, is configured as to the first via radio frequency Signal of communication is balanced the 2nd Balun converter of transmission；And

It is connected between the first Balun converter and second antenna, is configured as to second road radio frequency Signal of communication is balanced the 3rd Balun converter of transmission.

In one of them embodiment, the first Balun converter includes the first Balun conversion chip, and described the Two Balun converters include the 2nd Balun conversion chip, and the 3rd Balun converter includes the 3rd Balun conversion chip；

Wherein, the uneven detection pin of the first Balun conversion chip connects the control module, and described first The ground pin of Balun conversion chip is grounded；

The positive pin of communication of the 2nd Balun conversion chip and the communication anode of the 3rd Balun conversion chip Pin is connected to the communication anode pin of the first Balun conversion chip, the communication cathode of the 2nd Balun conversion chip altogether The communication that the communication cathode pin of pin and the 3rd Balun conversion chip is connected to the first Balun conversion chip altogether is negative Pole pipe foot；

The ground pin of the 2nd Balun conversion chip is grounded, and the ground pin of the 3rd Balun conversion chip connects Ground；

The uneven detection pin of the 2nd Balun conversion chip connects the first antenna, the 3rd Balun conversion The uneven detection pin of chip connects second antenna.

In one of them embodiment, the first antenna and second antenna are separately positioned on the double antenna ear The both ends of machine.

In one of them embodiment, the first antenna and second antenna are all disposed within the double antenna earphone One end.

In one of them embodiment, the radiation parameter includes: the transmission range of signal.

In one of them embodiment, the control module includes Bluetooth communication chip；

Wherein, the radio communication pin of the Bluetooth communication chip connects the balance conversion module.

In one of them embodiment, the shape of the first antenna is identical with the shape of second antenna.

The second aspect of the utility model embodiment provides a kind of double antenna earphone, comprising:

Earphone outer covering；

In the earphone outer covering, the communicating circuit of double antenna earphone as described above；And

Loudspeaker is connect with the communicating circuit of the double antenna earphone.

The third aspect of the utility model embodiment provides a kind of mobile terminal, including double antenna ear as described above Machine.

The communicating circuit of above-mentioned double antenna earphone can be balanced rf communication signal by balancing conversion module Conversion, enables rf communication signal to realize more preferably signal transmission quality in double antenna earphone, has ensured double antenna ear The traffic balance and compatibility of machine prevent rf communication signal from asking for distorted signals occur during double antenna earphone transmission Topic；Wherein the rf communication signal includes radio communication information, and Anneta module can carry out letter from extraneous different communication equipment Breath interaction, to realize the audio signal bi-directional function between double antenna earphone and communication equipment；The utility model embodiment Voice communication can be balancedly carried out by first antenna and the second antenna, first antenna and the second antenna keep radiation parameter Consistency improves the audio signal transmission quality and efficiency of transmission of double antenna earphone so that the communication quality of the two is identical, uses Family can receive more relief audio-frequency information by the communicating circuit of double antenna earphone, improve the double of double antenna earphone Antenna communication quality and communication efficiency, user can obtain more preferably audio experience；Therefore the double antenna earphone in the present embodiment Communicating circuit there is more simplified circuit modular structure, audio signal communication process more simplifies, and cost is relatively low for communication, Double antenna can remain balanced in communication process, and the communicating circuit of double antenna earphone can be realized more preferably communication quality And communication efficiency, the double antenna earphone have higher practical value；Overcome the two-channel signal of earphone in traditional technology Radiate unbalanced, there are biggish difference, traditional two signal transmission passages of earphone communicating circuit for the communication quality of double antenna Structure it is not flexible, the effectiveness in double-channel is inconsistent, and the audio experience of user is bad, it is difficult to blanket to ask Topic.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the communicating circuit for the double antenna earphone that an embodiment of the present invention provides；

Fig. 2 is the structural schematic diagram for the balance conversion module that an embodiment of the present invention provides；

Fig. 3 is the circuit structure diagram for the balance conversion module that an embodiment of the present invention provides；

Fig. 4 is that schematic diagram is put in the position of first antenna and the second antenna that an embodiment of the present invention provides；

Fig. 5 is that signal is put in another position of first antenna and the second antenna that an embodiment of the present invention provides Figure；

Fig. 6 is the circuit structure diagram for the control module that an embodiment of the present invention provides；

Fig. 7 is the structural schematic diagram for the double antenna earphone that an embodiment of the present invention provides；

Fig. 8 is the structural schematic diagram for the mobile terminal that an embodiment of the present invention provides.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

Referring to Fig. 1, the structural schematic diagram of the communicating circuit 10 of double antenna earphone provided by the embodiment of the utility model, double The communicating circuit 10 of antenna earphone realizes the function that dual audio signal interacts with extraneous communication equipment, improves double antenna ear The voice communication quality and compatibility of the communicating circuit 10 of machine；For ease of description, portion related to the present embodiment is illustrated only Point, details are as follows:

Wherein, the communicating circuit 10 of the double antenna earphone includes: control module 101, balance conversion module 102 and day Wire module 103.

Control module 101 generates rf communication signal.

Wherein, control module 101 has signal systematic function, produces different frequency and phase by control module 101 Rf communication signal, the communicating circuit 10 of double antenna earphone can be driven in different extraneous rings by the rf communication signal Complete signal communication function is kept in border, so that the communication function of the communicating circuit 10 of double antenna earphone is with good controllable Property and flexibility；Wherein the rf communication signal includes radio communication information, and the communicating circuit 10 of double antenna earphone can be with Extraneous electronic equipment carries out radio communication, and the communication compatibility with higher of communicating circuit 10 of double antenna earphone can penetrated The function of audio-frequency information interaction is realized under the driving of frequency signal of communication；And then the control module 101 in the present embodiment is as double days The control axis of the communicating circuit 10 of line earphone can be realized the centralized processing and conversion function of signal, so that double days The communicating circuit 10 of line earphone is at safe and stable signal communication state, has ensured the communicating circuit of double antenna earphone 10 physical security and compatibility, and the communications status of the communicating circuit 10 of the double antenna earphone has more simplification Rate-determining steps, cost is relatively low for control.

Optionally, the mobile terminal in control module 101 and the external world carries out wireless communication, and the mobile terminal is by the behaviour of user Make instruction output to control module 101, control module 101 instructs depending on the user's operation generates rf communication signal, so that institute The communicating circuit 10 for stating double antenna earphone carries out information exchange according to the actual demand and extraneous mobile terminal of technical staff, passes through The operational order of user can change the communications status of the communicating circuit 10 of double antenna earphone in time, so that double antenna earphone Communicating circuit 10 can carry out audio signal communication with mobile terminal under circumstances, and the control module 101 has splendid Controllability, compatibility it is extremely strong, improve the present embodiment in double antenna earphone communicating circuit 10 control flexibility and control Working condition variation, controlling can occur according to the actual demand of technical staff for the communicating circuit 10 of stability, double antenna earphone Can be splendid, compatible range is wider, brings good usage experience to user.

Balance conversion module 102 is connect with the control module 101, is configured as carrying out the rf communication signal flat Weighing apparatus conversion, balance transmission.

Wherein balance conversion module 102 has signal noise inhibition and the matched function of signal transfer impedance, works as control Module 101 exports rf communication signal to balance conversion module 102, can be radio communication by balance conversion module 102 Signal provides stable, quick signal transmission passage, has ensured rf communication signal radio communication information in transmission process Safety and integrality；And then rf communication signal is able to maintain complete frequency in balance 102 transmission process of conversion module Information and control information, the communicating circuit 10 of double antenna earphone have higher signal transmission quality and effectiveness, protect The audio quality that rf communication signal is realized is hindered；Illustratively, by logical in balance 102 setting signal of conversion module transmission Road, the impedance of the signal transmission passage and the QoS requirement of rf communication signal match, and then rf communication signal exists Balance conversion module 102 is able to carry out quick transmission, has ensured rf communication signal in the communicating circuit 10 of double antenna earphone In signal distributions are harmonious and conversion accuracy, avoid rf communication signal occur being lost in transmission process and it is balanced accidentally Difference, and then cause audio quality bad；Balance conversion module 102 in the present embodiment for rf communication signal can be realized compared with Good well-balanced adjustment function, to prevent rf communication signal from occurring in transmission process compared with lossy；By balancing conversion module 102 can make radio communication information keep being uniformly distributed during double antenna earphone transmission.

Anneta module 103 is connect with the balance conversion module 102, is configured as according to the radio frequency after the balance conversion Signal of communication receiving and transmitting signal.

Anneta module 103 in the present embodiment signal ready to receive under the manipulation of rf communication signal can also realize transmission Signal；Optionally, the Anneta module 103 and extraneous communication apparatus communication, Anneta module 103 audio signal can be exported to Communication equipment, and Anneta module 103 also can receive the signal of communication that communication equipment generates, to realize that the interaction of audio-frequency information passes It is defeated；Wherein the communication equipment is tablet computer or mobile phone, and Anneta module 103 can be set with extraneous different types of communication It is standby to carry out information exchange, improve the communication compatibility and practicability of the communicating circuit 10 of double antenna earphone；Double antenna earphone Communicating circuit 10 can be realized multi-functional signal communication by Anneta module 103, and ensure audio signal in double antenna The communication quality of the communicating circuit 10 of earphone improves the scope of application and practical value of the communicating circuit 10 of double antenna earphone.

Since the rf communication signal after balance conversion includes stable radio communication information, pass through the rf communication signal Anneta module 103 can be driven to carry out signal interaction transmitting, the Anneta module 103 communication compatibility with higher and communication can Control property；Therefore the achievable audio in the communicating circuit 10 of double antenna earphone of Anneta module 103, the function of signal interaction transmission, The communicating circuit 10 of double antenna earphone is quick by rf communication signal by Anneta module 103, flexibly is transmitted to communication sets It is standby, and the Anneta module 103 is capable of the signal of communication of receiving communication device sending, and the signal of communication includes to preset Audio-frequency information, and then signal communication matter with higher between the communicating circuit 10 and communication equipment of the double antenna earphone Amount, adaptability are stronger.

Wherein, the Anneta module 103 includes first antenna 1031 and the second antenna 1032,1031 He of first antenna Second antenna 1032 is arranged in double antenna earphone, 1032 the two of the first antenna 1031 and second antenna Radiation parameter is consistent.

Wherein, antenna is a kind of converter as made of conductor coiling, can transmit guided wave by antenna, and realize and lead Mutual conversion between traveling wave and electromagnetic wave can transmit electromagnetic wave by antenna, take belt controling signal on the electromagnetic wave, work as electricity When sub-circuit receives the electromagnetic wave, the electronic circuit can realize quick signal communication function, and then the day with antenna Line has more cheap manufacturing cost and higher communication quality, and antenna and extraneous communication equipment can carry out radio magnetic strength Power and energy of the signal during wireless transmission should have been ensured, the loss of signal transmission is more to realize signal bi-directional It is low, the signal compatibility efficiency of transmission of circuit system is improved by antenna, advantageously reduces the cost of signal wireless transmission.

It should be noted that the physical signal transmission performance of the radiation parameter representative antennas, when the radiation parameter of antenna When being determined, the communicating wireless signals function of antenna is also determined；Therefore the radiation parameter of antenna and the signal communication function of antenna There can be one-to-one relationship, optionally, the radiation parameter of the antenna includes: the signal transmission distance of antenna；Therefore logical The radiation parameter for changing antenna is crossed, the wireless signal transmission function of antenna can be delicately regulated and controled, realizes antenna communication quality oneself It adapts to change.

In the present embodiment, the communicating circuit 10 of double antenna earphone can pass through two antennas (first antenna 1031 and second Antenna 1032) and communication equipment progress wireless signal transmission, the communication distance and power of communications of audio signal are improved, and then described Two antennas in the communicating circuit 10 of double antenna earphone receive the rf communication signal, strengthen audio-frequency information in transmission process In power and efficiency, the communicating circuit 10 of the double antenna earphone can receive be more clear with complete audio signal, Improve the audio quality that the communicating circuit 10 of double antenna earphone is played；And first antenna 1031 and the second antenna 1032 with Dismountable mode is installed on double antenna earphone, and the space structure of the communicating circuit 10 of double antenna earphone has higher flexibility And compatibility, it is bigger convenient to bring to the use of user, and the scope of application is wider.

The communication quality of 1032 the two of first antenna 1031 and the second antenna keeps identical；Optionally, the communication matter Amount includes: the rate of signal transmission, power, the signal damage in transmission process of control information and signal that includes of signal Consumption；First antenna 1031 in the present embodiment is identical with the communication quality holding of both the second antennas 1032, when double days When the communicating circuit 10 of line earphone and extraneous communication equipment carry out wireless communication, first antenna 1031 and the second antenna 1032 tool There is the signal radiation of balance, the communicating circuit 10 of the double antenna earphone keeps the equilibrium point of communication strength in all directions Cloth, the communicating circuit 10 of double antenna earphone can receive audio-frequency information steady, that quality is splendid, ensure double antenna earphone The communicating circuit 10 of the audio quality and audio information transmissions efficiency of communicating circuit 10, double antenna earphone can be passed balancedly simultaneously Defeated two-way audio signal prevents occurring biggish signal communication difference between first antenna 1031 and the second antenna 1032；Therefore The communicating circuit 10 of double antenna earphone in the present embodiment realizes coordination, uniform wireless communication function by two antennas, Dual audio signal is carried out between the communicating circuit 10 and communication equipment of double antenna earphone in transmission process, audio can be made to believe Number original audio-frequency information is kept completely, improve the audio frequency control accuracy and stabilization of the communicating circuit 10 of double antenna earphone Property, user can obtain more preferably sound quality and audio by the communicating circuit 10 of double antenna earphone, bring the good sense of hearing to user Experience, practical value are higher.

In the structure of communicating circuit 10 that Fig. 1 shows double antenna earphone, the communicating circuit 10 of double antenna earphone have compared with It is simplified circuit module to realize audio signal communication function, the communicating circuit 10 of double antenna earphone, which has, more preferably communicates matter Amount and communication efficiency, 10 cost of manufacture of communicating circuit and application cost of the double antenna earphone are more cheap, reduce double days The double-channel audio communications cost of the communicating circuit 10 of line earphone；And under the centralized control of control module 101, modulus of conversion is balanced Block 102 can be realized the balance conversion of rf communication signal, and the signal inside the communicating circuit 10 to keep double antenna earphone passes Defeated efficiency and signal transmit uniformity, and the rf communication signal has higher letter in the communicating circuit 10 of double antenna earphone Number transmission integrity and signal transmission performance improve the audio-frequency information control quality of the communicating circuit 10 of double antenna earphone, keep away Exempt from radio communication information in the communicating circuit 10 of double antenna earphone and occurs distortion phenomenon in transmission process；And double days The communicating circuit 10 of line earphone carries out balanced voice communications by two antennas, the communicating circuit 10 of double antenna earphone with communicate With audio signal interactive performance that is more balanced, coordinating between equipment, the communicating circuit 10 of double antenna earphone is in all directions Upper to keep the identical of signal radiation, the communicating circuit 10 of double antenna earphone has double-channel audio letter that is more balanced, coordinating Number transfer function, the communicating circuit 10 of the double antenna earphone can be realized quality more preferably radio communication function, when double days When the communicating circuit 10 of line earphone is applied to audio communication system, more balanced audio-frequency information can be obtained, is greatly mentioned The even distribution for having risen communicating circuit 10 the sound intermediate frequency quality and audio-frequency information of double antenna earphone, brings more preferably to user Audio experience, the communicating circuit 10 of the double antenna earphone have the wider array of scope of application, and compatibility is stronger；To the present embodiment In the communicating circuit 10 of double antenna earphone there is balanced audio-frequency information communication function, the signal radiation protection of double antenna is more Uniformly, coordinate, audio signal has higher voice communication matter between the communicating circuit 10 and communication equipment of double antenna earphone Amount, the communicating circuit 10 of double antenna earphone remain uniformity of the audio-frequency information in transmission process, pass through the double antenna earphone Communicating circuit 10 more relief auditory effect can be brought to user, practical value is higher；The double antenna earphone Communicating circuit 10 has more flexible circuit modular structure, reduces the communications cost of audio-frequency information, can be in each different work Preferable dual signal communication function is kept in industry field, brings more preferably usage experience to user；Efficiently solve tradition The double antenna communication quality of earphone is unbalanced in technology, and signal cannot keep unanimously in the transmission performance of different direction, reduces The quality of duplex communication signal in earphone, the communications cost between earphone and extraneous electronic equipment is higher, and signal is each in earphone There are larger differences for the radiation in a direction, and the audio experience of user is lower, and the configuration flexibility of earphone is lower in traditional technology, difficult With blanket problem.

As an alternative embodiment, Fig. 2 shows the structures of balance conversion module 102 provided in this embodiment to show Meaning, referring to Fig. 2, the balance conversion module 102 includes: the first Balun converter 1021, the 2nd Balun converter 1022 And the 3rd Balun converter 1023.

Wherein, the first Balun converter 1021 is connect with the control module 101, is configured as to the radio communication Signal, which is balanced, is converted to first via rf communication signal and the second road rf communication signal.

It should be noted that Balun converter belongs to balanced to unbalanced transformer, the Balun converter has certain amplitude Impedance can realize signal the impedance of fixed amplitude converts by Balun converter, to reach high tone quality conversion and sound The function of frequency information equiblibrium mass distribution can be balanced audio-frequency information conversion output by Balun converter, and then make letter Number retain original audio-frequency information in conversion process, improves the quality and efficiency of signal communication, ensured that signal is being transmitted across The uniformity and reliability radiated in journey；The balanced conversion function of signal can be achieved in the Balun converter in circuit system, Compatibility is higher, greatly improves the conversion quality and transfer efficiency of circuit sound intermediate frequency signal,

In the present embodiment, when control module 101 exports rf communication signal to the first Balun converter 1021, Rf communication signal is divided by the first Balun converter 1021 according to the radio communication information for including in rf communication signal The equal rf communication signal of two-way power (first via rf communication signal and the second road rf communication signal), described first Balun converter 1021 can keep the transfer efficiency and conversion quality of radio communication information, first via radio communication letter completely Number and the second road rf communication signal can keep the function of signal completely, the two-way in the communicating circuit 10 of double antenna earphone is penetrated The frequency communication information can keep the harmony and consistency of power completely, be conducive to the communicating circuit 10 for promoting double antenna earphone The transmission harmony and consistency of simple two-way signal；First Balun converter 1021 retains according to the actual demand of technical staff The completeness and efficiency of radio communication information has higher practical value, therefore double antenna earphone in the present embodiment Communicating circuit 10 has higher communication quality and compatible performance.

2nd Balun converter 1022 be connected to the first Balun converter 1021 and the first antenna 1031 it Between, it is configured as being balanced transmission to the first via rf communication signal.

3rd Balun converter 1023 be connected to the first Balun converter 1021 and second antenna 1032 it Between, it is configured as being balanced transmission to second road rf communication signal.

Wherein, the first via rf communication signal and the second road rf communication signal all include corresponding radio communication letter Breath ensures the voice communication quality of the communicating circuit 10 of the double antenna earphone to drive double antenna to realize duplex communication function With voice communication efficiency；When the first Balun converter 1021 exports first via rf communication signal to the 2nd Balun converter 1022, when the first Balun converter 1021 exports the second road rf communication signal to the 3rd Balun converter 1023, second Balun converter 1022 can be realized the lossless transmission of first via rf communication signal, to retain first via radio communication letter The communication information in number；3rd Balun converter 1023 can be realized the lossless transmission of the second road rf communication signal, to protect Stay the communication information in the second road rf communication signal；And first via rf communication signal and the second road rf communication signal exist Signal transmission rate and signal transmission time having the same in the communicating circuit 10 of double antenna earphone, to keep radio communication to believe Coordination in transmission process, consistent is ceased, the communicating circuit 10 of double antenna earphone has higher duplex communication quality and two-way Communication efficiency；It (includes: the 2nd Balun converter that balance conversion module 102 in the present embodiment, which passes through two Balun converters, 1022 and the 3rd Balun converter 1023) transmitting two paths rf communication signal respectively, both remained two-way rf communication signal Independence and anti-interference, radio communication information can realize more preferably transmission effect in the communicating circuit 10 of double antenna earphone Rate has ensured the audio quality of the communicating circuit 10 of double antenna earphone, and two Balun converters are able to maintain two-way radio frequency The transmission consistency and stability of signal of communication, and then two-way rf communication signal energy in the communicating circuit 10 of double antenna earphone Higher harmony is enough kept, the double antenna communication quality and signal transmission effect of the communicating circuit 10 of double antenna earphone are improved Rate, so that the balance conversion module 102 can keep the consistent of two-way radio frequency signal of communication in each industrial technical field Property and Performance Match, more preferably, the communicating circuit 10 of double antenna earphone has more preferably communication compatibility and audio to communication quality Quality.

As an alternative embodiment, Fig. 3 shows the specific electricity of balance conversion module 102 provided in this embodiment Line structure, referring to Fig. 3, the first Balun converter 1021 include the first Balun conversion chip UM1, described second Balun converter 1022 includes the 2nd Balun conversion chip UM2, and the 3rd Balun converter 1023 includes the 3rd Balun Conversion chip UM3；And then the present embodiment in Balun converter realized by Balun conversion chip it is signal-balanced conversion and Balance transmission function greatly simplifies the circuit structure of balance conversion module 102, and the process performance of signal is more preferably.

Wherein, the uneven detection pin UNBAL of the first Balun conversion chip UM1 connects the control module 101, The ground pin of the first Balun conversion chip UM1 is grounded GND；First Balun conversion chip UM1 passes through uneven detection Pin UNBAL has access to rf communication signal, and then realizes between the first Balun converter 1021 and control module 101 Signal compatibility transfer function has ensured the quality and efficiency of transmission of rf communication signal.

The communication anode pin BAL+ and the 3rd Balun conversion chip UM3 of the 2nd Balun conversion chip UM2 Communication anode pin BAL+ be connected to the communication anode pin BAL+ of the first Balun conversion chip UM1 altogether, described second The communication cathode pin of communication the cathode pin BAL- and the 3rd Balun conversion chip UM3 of Balun conversion chip UM2 BAL- is connected to the communication cathode pin BAL- of the first Balun conversion chip UM1 altogether；And then Balun conversion chip is by leading to Letter cathode pin BAL- and communication anode pin BAL+ can be realized the compatible transmission function of signal, ensure radio communication information Integrality and compatibility in transmission process；When the first Balun conversion chip UM1 is obtained by the balance conversion process of signal When first via rf communication signal and the second road rf communication signal, by communication cathode pin BAL- and positive pin is communicated This two-way rf communication signal is transmitted to corresponding signal transmission passage by BAL+, has ensured the communicating circuit 10 of double antenna earphone In two-way radio frequency information efficiency of transmission and transmission accuracy, the balance conversion module 102 is with higher radio communication Signal conversion accuracy avoids radio communication information from occurring biggish error in transmission process.

The ground pin of the 2nd Balun conversion chip UM2 is grounded GND, the 3rd Balun conversion chip UM3's Ground pin is grounded GND.

The uneven detection pin UNBAL of the 2nd Balun conversion chip UM2 connects the first antenna 1031, described The uneven detection pin UNBAL of 3rd Balun conversion chip UM3 connects second antenna 1032；When the 2nd Balun converts core After piece UM2 is balanced transmission for first via rf communication signal, the uneven detection pipe of the 2nd Balun conversion chip UM2 Foot UNBAL exports first via rf communication signal to first antenna 1031, to drive first antenna 1031 to realize signal communication Function；After the 3rd Balun conversion chip UM3 is balanced transmission for the second road rf communication signal, the 3rd Balun conversion The uneven detection pin UNBAL of chip UM3 exports the second road rf communication signal to the second antenna 1032, to drive second Antenna 1032 realizes signal communication function；And then the 2nd Balun conversion chip UM2 and the 3rd Balun conversion in the present embodiment Chip UM3 can ensure the balanced transmission performance of two-way radio frequency signal of communication, first via rf communication signal and the second road radio frequency Signal of communication is able to maintain original power in signals transmission, has ensured two-way radio frequency signal of communication in transmission process Safety and reliability, and then the communicating circuit 10 of the double antenna earphone can under the driving of two-way radio frequency signal of communication Realize that balanced double antenna communication function, the communicating circuit 10 of double antenna earphone and extraneous electronic equipment can realize real-time sound Frequency signal communication function improves the audio quality and adaptation range of the communicating circuit 10 of double antenna earphone.

As an alternative embodiment, the model of the first Balun conversion chip UM1 are as follows: MABA-010125- TC1113；The model of 2nd Balun conversion chip UM2 are as follows: MABA-010125-TC1113；3rd Balun conversion chip UM3's Model are as follows: MABA-010125-TC1113；And then each Balun converter in the present embodiment can be according to the reality of technical staff Demand carries out signal conversion and signal transmission, and function switching signal and transfer function are at stable state, improves The circuit compatibility performance of the communicating circuit 10 of double antenna earphone, brings more preferably usage experience to user.

In the circuit structure that Fig. 3 shows balance conversion module 102, Balun converter can by Balun conversion chip The conversion and transmission process for realizing rf communication signal, not only simplify the internal circuit knot of the communicating circuit 10 of double antenna earphone Structure can balancedly be converted to two-way radio communication information for the rf communication signal that control module 101 exports, and then enhance The communicating circuit 10 of double antenna earphone and the bi-directional communication function of communication equipment, and pass through the 2nd Balun conversion chip UM2 The harmony and stability of two-way radio frequency signal of communication can be ensured with the 3rd Balun conversion chip UM3, signal power is in double days It can be realized higher uniformity in the communicating circuit 10 of line earphone, ensured the two-way in the communicating circuit 10 of double antenna earphone The radiance of audio signal has uniformity, and the balance conversion module 102 has more flexible circuit structure, and signal turns The function of changing is stronger, reduces the circuit production cost and application cost of the communicating circuit 10 of double antenna earphone, the double antenna The communicating circuit 10 of earphone has higher compatibility and applicable performance, so that the communicating circuit 10 of the double antenna earphone and logical More stable, safe information exchange operation is able to carry out between letter equipment.

As an alternative embodiment, the first antenna 1031 and second antenna 1032 are separately positioned on institute State the both ends of double antenna earphone.

As an alternative embodiment, the first antenna 1031 and second antenna 1032 be all disposed within it is described One end of double antenna earphone.

Communication interface due to first antenna 1031 and the second antenna 1032 as double antenna earphone can lead to extraneous Believe that equipment carries out rapidly wireless signal transmission function, first antenna 1031 and the second antenna 1032 in the communication of double antenna earphone There is more flexible Space Layout Structure in circuit 10, the logical of double antenna earphone can be arranged in double antenna according to actual needs The both ends or the same end of circuit 10 are interrogated, the communicating circuit 10 of double antenna earphone and extraneous communication equipment carry out high-precision nothing Line communication function, first antenna 1031 and the second antenna 1032 can be always in safety, balanced communications status, double-channel audios Signal communication quality with higher in the communicating circuit 10 of double antenna earphone, remains original, complete audio-frequency information, It avoids audio signal and signal propagation delay time occurs in the communicating circuit 10 of double antenna earphone；Therefore double days in the present embodiment The communicating circuit 10 of line earphone has relatively reasonable, compatible space structure, and the communicating circuit 10 of the double antenna earphone can It is compatible to be suitable for each different industrial technical field；Double antenna design in the present embodiment has ensured the communication of double antenna earphone Audio quality in circuit 10 brings more preferably audio experience, the circuit structure of the communicating circuit 10 of double antenna earphone to user With more flexible adjustability and controllability, the space hold volume of the communicating circuit 10 of double antenna earphone is saved, it is double More preferably, practical value is higher for the service performance of the communicating circuit 10 of antenna earphone.

As an alternative embodiment, the central axes of the first antenna 1031 and two loudspeakers of double antenna earphone Geometric center line be mutually perpendicular to or be parallel to each other；It is raised with two, double antenna earphone the central axes of second antenna 1032 The geometric center line of sound device is mutually perpendicular to or is parallel to each other.

Illustratively, Fig. 4 and Fig. 5 shows the position of first antenna 1031 provided in this embodiment and the second antenna 1032 Schematic diagram is put, in Fig. 4, first antenna 1031 and the second antenna 1032 are vertically put in the double antenna earphone；In Fig. 5 In, first antenna 1031 and the second antenna 1032 level in the double antenna earphone are put；First antenna in the present embodiment 1031 and second antenna 1032 have more flexible space structure.

Referring to Fig. 4 and Fig. 5, in the present embodiment, wherein the geometric center line of two loudspeakers of the double antenna earphone As canonical reference system, no matter first antenna 1031 and the second antenna 1032 relative to canonical reference system use vertical disposing way Or use horizontal disposing way, the double antenna in the communicating circuit 10 of double antenna earphone under the driving of rf communication signal all Can stable data communication function, to realize the transmission-receiving function of double-channel audio information, the communicating circuit 10 of double antenna earphone can Dual audio signal is transmitted to communication by the double-channel audio information of access communications equipment or the communicating circuit 10 of double antenna earphone Equipment, communication function interference free performance with higher and safety between the communicating circuit 10 and communication equipment of double antenna earphone Performance, the communicating circuit 10 of double antenna earphone can remain stable audio information transmissions function, to meet each of user Kind audiovisual demand；The first antenna 1031 in the present embodiment and the second antenna 1032 have more flexible placement position in turn, Technical staff can adjust the spatial position of first antenna 1031 and the second antenna 1032, double days according to the communication requirement of audio-frequency information The controllability of line communication function is stronger, so that the communicating circuit 10 of the double antenna earphone can be suitable for different places, The communicating circuit 10 of double antenna earphone can be placed at an arbitrary position and keep good voice communication function by user, to user with Carry out more preferably usage experience；So that the first antenna 1031 and the second antenna 1032 in the present embodiment have more flexible space The controllability of design structure, user is stronger, can be realized dual signal transmission channel function by double antenna, greatly ensures The voice communication efficiency and voice communication quality of double antenna earphone, to the bringing great convenience property of use of user.

As an alternative embodiment, the control module 101 includes: Bluetooth communication chip；Wherein, the bluetooth The radio communication pin of communication chip connects the balance conversion module 102.The Bluetooth communication chip can be realized stronger letter Number control and signal transfer functions, can make the communicating circuit 10 of double antenna earphone realize double letters by the Bluetooth communication chip Number transfer function, by the centralized control functions of Bluetooth communication chip, and then between double antenna earphone and the communication equipment in the external world It can be realized Bluetooth wireless communication, ensured with higher wireless between the communicating circuit 10 of double antenna earphone and communication equipment Audio signal transmission quality；The communicating circuit 10 of double antenna earphone in the present embodiment can be real under the control of Bluetooth communication chip Existing good centralized control functions, the control stability of the communicating circuit 10 of the double antenna earphone and safety are higher, circuit Compatibility it is stronger, the Bluetooth communication chip can according to the actual demand of technical staff carry out voice communication function, greatly mention The parameter quality of the dual audio signal of the communicating circuit 10 of double antenna earphone is risen.

Illustratively, the model of the Bluetooth communication chip are as follows: CSR8670, it should be noted that those skilled in the art The Bluetooth communication chip of other models can also be used to realize the function of Bluetooth communication, do not limit this；And then the present embodiment In control module 101 have more flexible circuit structure and multiple functional signal centralized control functions；It is exemplary , by taking Bluetooth communication chip is CSR8670 chip as an example, Fig. 6 shows the specific electricity of control module 101 provided in this embodiment Line structure, referring to Fig. 6, the control module 101 includes: Bluetooth communication chip U1, the first crystal oscillator Y1, first capacitor C1, Two capacitor C2, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8, Nine capacitor C9, the tenth capacitor C10, the 11st capacitor C11, the 12nd capacitor C12, the 13rd capacitor C13, the 14th capacitor C14, 15th capacitor C15, the 16th capacitor C16, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th Resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, First current transformer T1 and the second current transformer T2.

Wherein, the radio communication pin RF of the Bluetooth communication chip U1 connects the balance conversion module 102, when bluetooth is logical It is by the radio communication pin RF of Bluetooth communication chip U1 that rf communication signal is defeated when believing that chip U1 generates rf communication signal Out to balance conversion module 102, function is transmitted to realize Bluetooth communication chip U1 and balance the compatible signal between conversion module 102 Can, ensure that transmission quality of the radio communication information in the communicating circuit 10 of double antenna earphone, control module 101 have higher Control stability.

The VREGEN pin access pull-up enable signal of the Bluetooth communication chip U1, can by the pull-up enable signal Bluetooth communication chip U1 is set to be in the state of a control of safety and stability, to activate the communicating circuit 10 of double antenna earphone to can be realized surely Fixed voice communication function.

The first end of the VCHG pin of the Bluetooth communication chip U1 and the first capacitor C1 are connected to the first direct current altogether The second end of source VCC1, the first capacitor C1 are grounded GND；Optionally, the first DC power supply VCC1 is that+1V~+10V is straight Galvanic electricity source can be exported direct current energy by the first DC power supply VCC1 to the VCHG pin of Bluetooth communication chip U1, to protect Internal electronic component in barrier Bluetooth communication chip U1 realizes stable charge function, improves the peace of Bluetooth communication chip U1 Quan Xing.

The VBAT_SEN pin of the Bluetooth communication chip U1, the VBAT pin of the Bluetooth communication chip U1 and described The first end of second capacitor C2 is connected to the second end ground connection GND of the second DC power supply VCC2, the second capacitor C2 altogether；It is optional , the second DC power supply VCC2 is+1V~+10V DC power supply, can be exported direct current energy by the second DC power supply VCC2 To Bluetooth communication chip U1, and stand-by electric energy of the second DC power supply VCC2 as Bluetooth communication chip U1, to prevent bluetooth There is power loss event and biggish control error occurs in communication chip U1, has ensured the control stability and peace of control module 101 Quan Xing.

The first end of the 3V3_USB pin of the Bluetooth communication chip U1 and the third capacitor C3 are connected to third direct current altogether The second end of power supply VCC3, the third capacitor C3 are grounded GND；Optionally, third DC power supply VCC3 is+1V~+10V direct current Power supply；Third DC power supply VCC3 produces power driving signal, when the 3V3_USB pin of Bluetooth communication chip U1 accesses power supply When driving signal, Bluetooth communication chip U1 can be made to realize normal signal systematic function, Jin Ersuo by power driving signal Rf communication signal can be smoothly output by stating control module 101.

The LX_1V8 pin of the Bluetooth communication chip U1 connects the first end of the first current transformer T1, and described first The second end of current transformer T1, the first end of the 4th capacitor C4, the Bluetooth communication chip U1 VDD_FL_1V8 pipe Foot, the first end of the 5th capacitor C5, the VDD_AUX_1V8 pin of the Bluetooth communication chip U1, the 6th capacitor C6 First end and the VDD_AUX_DRV pin of the Bluetooth communication chip U1 be connected to the 4th DC power supply VCC4 altogether, described The second end of four capacitor C4 is grounded GND, and the second end of the 5th capacitor C5 is grounded GND, the second end of the 6th capacitor C6 It is grounded GND；Optionally, the 4th DC power supply VCC4 is+1V~+10V DC power supply；Wherein LX_1V8 pin, VDD_FL_1V8 Pin, VDD_AUX_1V8 pin and VDD_AUX_DRV pin access driving electric energy, to keep inside Bluetooth communication chip U1 Amplifier, the reset function of electronic component improve the physical security of internal electronic component in the Bluetooth communication chip U1 Performance.

The first end of the VDD_AUX pin of the Bluetooth communication chip U1 and the 7th capacitor C7 are connected to described first altogether The second end of the first end of resistance R1, the 7th capacitor C7 is grounded GND, the LX_LV35 pin of the Bluetooth communication chip U1 Connect the first end of the second current transformer T2, the VREGIN pin of the Bluetooth communication chip U1 and the 12nd capacitor The first end of C12 is connected to the first end of the second resistance R2 altogether, and the second end of the 12nd capacitor C12 is grounded GND；It is described The second end of first resistor R1, the second end of the second current transformer T2, first end, the indigo plant of the 8th capacitor C8 The SMPS_SEN pin of tooth communication chip U1, the first end of the 9th capacitor C9, the Bluetooth communication chip U1 VDD_ANA Pin, the first end of the tenth capacitor C10, the VDD_AUDIO pin of the Bluetooth communication chip U1, the 11st capacitor The first end of C11 and the second end of the second resistance R2 are connected to the 5th DC power supply VCC5 altogether, the 8th capacitor C8's Second end is grounded GND, and the second end of the 9th capacitor C9 is grounded GND, and the second end of the tenth capacitor C10 is grounded GND, institute State the second end ground connection GND of the 11st capacitor C11；Optionally, the 5th DC power supply VCC5 is+1V~+40V DC power supply；Its Described in VDD_AUX pin, LX_LV35 pin, SMPS_SEN pin, VDD_ANA pin, VDD_AUDIO pin and VREGIN pin can provide benchmark energy information for Bluetooth communication chip U1, so that Bluetooth communication chip U1 can generate precision Higher rf communication signal, improve the communicating circuit 10 of double antenna earphone control is accurate and Bluetooth communication efficiency.

The VDD_DIG_EFL pin of the Bluetooth communication chip U1 connects the first end of the 13rd capacitor C13, and described The second end of 13 capacitor C13 is grounded GND；The VDD_DIG_EFL pin of the Bluetooth communication chip U1 can access varying level The control signal of state, so that Bluetooth communication chip U1 is able to maintain rf communication signal generation always in various external environments The working condition of function, the Bluetooth communication chip U1 has higher adaptive controllability.

The VDD2 pin of the VDD1 pin of the Bluetooth communication chip U1 and the Bluetooth communication chip U1 are connected to described altogether The first end of 3rd resistor R3, the VDD3 pin of the Bluetooth communication chip U1 connects the first end of the 4th resistance R4, described The second end of 3rd resistor R3 and the second end of the 4th resistance R4 are connected to the 6th DC power supply VCC6 altogether；Optionally, the 6th DC power supply VCC6 is+1V~+10V DC power supply；Bluetooth can be made logical by VDD1 pin, VDD2 pin and VDD3 pin Electronic component inside letter chip U1 is in specified working condition, and Bluetooth communication chip U1 accesses specified electric energy always, Improve the quality of voice communication.

The XI pin of the Bluetooth communication chip U1 connects the first signal input output end of the first crystal oscillator Y1, the indigo plant The XO pin of tooth communication chip U1 connects the second signal input/output terminal of the first crystal oscillator Y1, the ground connection of the first crystal oscillator Y1 End ground connection GND；Corresponding frequency of oscillation, and then the XI pin and XO of the Bluetooth communication chip U1 are generated by the first crystal oscillator Y1 Pin accesses frequency of oscillation, so that the communication control function that Bluetooth communication chip U1 can bring into normal play.

The LED0 pin of the Bluetooth communication chip U1 connects the first end of the 5th resistance R5, the Bluetooth communication chip The LED1 pin of U1 connects the first end of the 6th resistance R6, second end and the 6th resistance by the 5th resistance R5 The exportable condition indicative signal of the second end of R6 can show the work of Bluetooth communication chip U1 by the condition indicative signal in time Make state, to enable a technician to grasp the actual working state of Bluetooth communication chip U1 in time；Therefore in the present embodiment Bluetooth communication chip U1 exports corresponding status indication information by LED0 pin and LED1 pin in time, improves the control The control compatibility of molding block 101.

Wherein the PIO0 pin of the Bluetooth communication chip U1, PIO1 pin, PIO2 pin, PIO3 pin, PIO4 pin, PIO5 pin, PIO6 pin, PIO7 pin and PIO22 pin are all communications reset pin；The first of the 7th resistance R7 The PIO4 pin of the Bluetooth communication chip U1 is terminated, the first termination Bluetooth communication chip U1's of the 8th resistance R8 PIO5 pin, the PIO6 pin of the first termination Bluetooth communication chip U1 of the 9th resistance R9, the tenth resistance R10 The first termination Bluetooth communication chip U1 PIO7 pin, the first termination bluetooth of the eleventh resistor R11 is logical Believe the PIO22 pin of chip U1, the PIO0 pin of Bluetooth communication chip U1, the PIO1 pin of Bluetooth communication chip U1, bluetooth are logical Believe PIO4 pin, the Bluetooth communication of the PIO2 pin of chip U1, the PIO3 pin of Bluetooth communication chip U1, Bluetooth communication chip U1 The PIO5 pin of chip U1, the PIO6 pin of Bluetooth communication chip U1, Bluetooth communication chip U1 PIO7 pin, Bluetooth communication core The PIO22 pin of piece U1, the second end of the 7th resistance R7, the second end of the 8th resistance R8, the 9th resistance R9 Second end, the second termination of the second end of the tenth resistance R10 and the eleventh resistor R11 extraneous mobile end End, and then the communications reset pipe that the operation information of user is transmitted to Bluetooth communication chip U1 is interrupted by movement, so that bluetooth Communication chip U1 realizes corresponding radio communication control function, Bluetooth communication chip U1 tool according to the operational order of technical staff There are higher communication compatibility and control flexibility, is applicable to each different industrial technical field.

Wherein, the PIOI3/RX pin of Bluetooth communication chip U1, PIOI4/TX pin, USB_P pin and USB_N pin Pin, the PIOI3/RX pin of the first termination Bluetooth communication chip U1 of the twelfth resistor R12, institute are transmitted for data The PIOI4/TX pin of the first termination Bluetooth communication chip U1 of thirteenth resistor R13 is stated, the 14th resistance R14's The USB_P pin of the first termination Bluetooth communication chip U1, the first termination Bluetooth communication of the 15th resistance R15 The USB_N pin of chip U1, the second end of the twelfth resistor R12, the second end of the thirteenth resistor R13, described The storage equipment in the second termination external world of the second end of 14 resistance R14 and the 15th resistance R15, and then the storage Equipment and the data of Bluetooth communication chip U1 transmission pin can carry out information exchange, carry out in the communicating circuit 10 of double antenna earphone In audio-frequency information communication process, storage equipment can retain the data of Bluetooth communication chip U1 generation in time, logical to improve bluetooth Believe the control precision of chip U1 and the transmission stability of rf communication signal.

The SPI_PCM pin of the Bluetooth communication chip U1 connects the first end of the 16th resistance R16, and the described 16th The second the 7th DC power supply VCC7 of termination of resistance R16；Optionally, seven DC power supply VCC7 are+1V~+10V DC power supply；It is logical Direct current energy can be exported to the SPI_PCM pin of Bluetooth communication chip U1 by crossing the 7th DC power supply VCC7, so that bluetooth is logical Letter chip U1 and extraneous mobile terminal can be realized stable data communication function, improve the compatibility of Bluetooth communication chip U1 Property and practical value.

MIC_RN pin, MIC_RP pin and the BIAS pin of the Bluetooth communication chip U1 is biasing pin, described The MIC_RN pin of Bluetooth communication chip U1 connects the first end of the 14th capacitor C14, the Bluetooth communication chip U1's MIC_RP pin connects the first end of the 15th capacitor C15, the second end of the 14th capacitor C14 and the Bluetooth communication The BIAS pin of chip U1 accesses bias voltage；Optionally, the bias voltage is generated by the biasing circuit in traditional technology；It is logical Crossing the bias voltage can make Bluetooth communication chip U1 generate the higher rf communication signal of precision, according to the rf communication signal The communicating circuit 10 of double antenna earphone can be made to be in more stable working condition, reduce Bluetooth communication error.

The AU_REF pin of the Bluetooth communication chip U1 connects the first end of the 16th capacitor C16, and the described 16th The second end of capacitor C16 is grounded GND, and Bluetooth communication chip U1 accesses electric energy reference information, the bluetooth by AU_REF pin Communication chip U1 can realize more stable control function, so that control module 101 realizes two-way under specified working condition The interactive function of signal of communication, safety are higher.

In the structure that Fig. 6 shows control module 101, the Bluetooth communication chip U1 has high communication control function And communication compatibility, Bluetooth communication chip U1 can export corresponding rf communication signal according to the operational order of technical staff, To drive the communicating circuit 10 of double antenna earphone to realize the function of stable Bluetooth audio frequency information communication；The Bluetooth communication chip U1 has ensured that the safety and stability of voice communication, rf communication signal include more in the communicating circuit 10 of double antenna earphone Complete radio communication information, so that the communicating circuit 10 of the double antenna earphone has higher compatible applicable performance；This reality Audio-frequency information control, double antenna earphone can be carried out according to the operational order of technical staff in real time by applying the control module 101 in example Communicating circuit 10 and communication equipment between communication there is higher compatibility and flexibility, control module 101 can be real always Now safe control performance improves the Audio Signal Processing and analysis performance of the communicating circuit 10 of double antenna earphone.

As an alternative embodiment, the shape of the shape of the first antenna 1031 and second antenna 1032 It is identical.

Wherein, when antenna and extraneous communication equipment carry out wireless communication, shape has pole for the communication function of antenna Its important influence, when shape is not identical, then the efficient communication area of antenna can also occur to change accordingly, influence antenna Effectiveness；Therefore the shape phase of the double antenna (including first antenna 1031 and the second antenna 1032) in the present embodiment Together, then first antenna 1031 and the signal transmission performance of the second antenna 1032 are consistent completely, improves the double antenna The transmission harmony and efficiency of transmission of dual audio signal, have ensured the communication electricity of double antenna earphone in the communicating circuit 10 of earphone The signal radiation of all directions is identical in road 10, and the communication between double antenna earphone and communication equipment is accurately higher, reduces The transmission error of dual audio signal.The communicating circuit 10 of double antenna earphone in the present embodiment is believed with more preferably dual-audio Signal communication quality and practical value.

Optionally, the first antenna 1031 and second antenna 1032 the manufacture material of antenna, antenna it is specified These aspects of the rated current of power, the internal resistance of antenna and antenna are consistent；By setting 1031 He of first antenna The operating parameter of both second antennas 1032, so that the signal communication performance of first antenna 1031 and the second antenna 1032 With higher Modulatory character, having ensured between the 10 communication with the outside world equipment of communicating circuit of double antenna earphone has higher lead to Believe accuracy and signal interaction efficiency.

Referring to above-mentioned, since the communicating circuit 10 of double antenna earphone is realized by first antenna 1031 and the second antenna 1032 Dual audio signal transmitting, when the signal communication performance of first antenna 1031 and the signal communication property retention of the second antenna 1032 Identical, the communicating circuit 10 of the double antenna earphone has the function of more balanced signal radiation, so that double antenna earphone Communicating circuit 10 can be realized more preferably sound quality and faster audio information transmissions；If first antenna 1031 and the second antenna 1032 when being respectively connected to radio communication information, can drive first antenna 1031 and the second antenna 1032 by rf communication signal It realizes identical signal communication intensity and signal communication efficiency, more stable audio can be achieved between double antenna and communication equipment Information transmission, the communication quality and letter that the communicating circuit 10 of the double antenna earphone can be consistent completely in all directions Number transmission performance, user obtain the stronger audio-frequency information of three-dimensional sense by the communicating circuit 10 of the double antenna earphone, to user with Carry out more preferably visual experience；Therefore the first antenna 1031 in the present embodiment and the second antenna 1032 parallel, can be passed synchronously Defeated two-way audio information can be realized farther signal transmission distance, double antenna earphone between antenna and the communication equipment in the external world Communicating circuit 10 can obtain be more clear, complete audio-frequency information；Effectively improve the communicating circuit of double antenna earphone The signal transporting that the radiance of 10 dual audio signal, first antenna 1031 and the second antenna 1032 remain exactly the same Can, the transmission precision of audio signal is higher；The transmission error of the double antenna signal due to caused by the parameter error of antenna is avoided, The signal radiation of dual audio signal has differences, the bad shortcoming of the audio experience of user.

Fig. 7 shows the structural representation of double antenna earphone 50 provided in this embodiment, referring to Fig. 7, the double antenna ear Machine 50 includes: the communicating circuit 10 of earphone outer covering 501, loudspeaker 502 and double antenna earphone as described above.

The communicating circuit 10 of the double antenna earphone is set in the earphone outer covering 501.

Wherein, the earphone outer covering 501 has intensity height and low density material to be fabricated, and passes through the earphone outer covering 501 are capable of 10 safety of communicating circuit of guarantee for implement double antenna earphone；When user uses the communicating circuit 10 of the double antenna earphone When, the earphone outer covering 501 can play the function of protection communicating circuit 10, avoid the antenna earphone 10 by extraneous physics The interference of power of enforcement, for example, can prevent the communicating circuit 10 of double antenna earphone from receiving extraneous pressure by the earphone outer covering 501 The collision of power or the drop of rainwater are splashed；The earphone outer covering 501 has greatly ensured the physics of the communicating circuit 10 of double antenna earphone The communicating circuit 10 of safety and electric power safety, double antenna earphone can remain safe audio signal in various environment Communication quality, user can obtain quality more preferably audio signal, so that the communicating circuit 10 of the double antenna earphone is with higher Practical value and the scope of application.

Loudspeaker 502 is connect with the communicating circuit 10 of the double antenna earphone；The loudspeaker 502 plays the double antenna The audio signal that the communicating circuit 10 of earphone exports.

The loudspeaker 502 have the function of signal power amplification and transmission, when double antenna earphone communicating circuit 10 with After carrying out audio-frequency information communication between communication equipment, the communicating circuit 10 of double antenna earphone can be according to the operational order of technical staff Corresponding audio signal is exported, which includes corresponding audio-frequency information, by loudspeaker 502 for the audio signal After identification, amplification and parsing, the loudspeaker 502 can keep the information that audio signal includes completely, pass through loudspeaker 502 Corresponding audio-frequency information can be exported outward in real time, user can be more clear, complete sound quality, improve listening for user Feel experience；And then the present embodiment greatly improves audio playback quality and the broadcasting of double antenna earphone 50 by loudspeaker 502 The volume of efficiency, the double antenna earphone 50 has good adjustability；Audio signal is efficiently avoided in transmission process Appearance is lost and is distorted, and audio is lower, the bad problem of the audio experience of user.

In the structure that Fig. 7 shows double antenna earphone 50, two-way can be realized by the communicating circuit 10 of double antenna earphone Audio signal transmission function, the communicating circuit 10 of the double antenna earphone can obtain clear, complete audio-frequency information, and protect Barrier the audio-frequency information harmony and stability transmitted in the communicating circuit 10 of double antenna earphone, the efficiency of transmission of audio-frequency information and Quality is higher；And it can ensure that the work safety of the communicating circuit 10 of double antenna earphone and work are steady by earphone outer covering 501 Qualitative, so that the double antenna earphone 50 can be suitable for each different industrial technical field, practical value is higher；When double days 10 output audio signal of communicating circuit of line earphone, the audio-frequency information that loudspeaker 502 can in time in playing audio signal, so that Audio signal power and signal-to-noise ratio with higher in transmission process, can export sound quality by loudspeaker 502 outward in time More preferably audio-frequency information brings good audio experience to user；Therefore the present embodiment double antenna earphone 50 passes through double antenna ear The communicating circuit 10 of machine realizes preferable audio-frequency information balanced transmission and playing function, and user is in different application environments Splendid audio-frequency information can be obtained, for the cost of audio information transmissions the bottom of compared with, the double antenna earphone 50 has higher be applicable in Range；Audio information transmissions to efficiently solve the earphone system in traditional technology are unbalanced and audio signal exists Exist in transmission process causes the audio-frequency information quality of broadcasting bad compared with lossy, and the audio experience of user is poor, traditional ear There are biggish noises for machine system sound intermediate frequency signal, can not generally be applicable in, the lower problem of compatibility.

Fig. 8 shows the structural representation of mobile terminal 60 provided in this embodiment, please refers to Fig. 8, the mobile terminal 60 Including double antenna earphone 50 as described above；And then the mobile terminal 60 in the present embodiment has audio-frequency information interaction and audio The function of information transmission.

Referring to the embodiment of above-mentioned Fig. 7, the double antenna earphone 50 has more simplified circuit structure, and by being somebody's turn to do Double antenna earphone 50 can be realized the function of dual audio signal communication, ensure the quality of voice communication and the power of communication, The double antenna earphone 50 is capable of the alternating transmission of real-time perfoming audio-frequency information, reduce the voice communication of mobile terminal 60 at This, dual audio signal is able to maintain the consistent of radiation intensity in all directions, and then double antenna earphone 50 can be realized more Balanced audio information transmissions, have ensured the audio quality and effectiveness of double antenna earphone 50；Therefore the present embodiment will Double antenna earphone 50 is applied to mobile terminal 60, and the mobile terminal 60 can be realized quality more preferably double-channel audio information and transmit Function, by the mobile terminal 60 can play quality more preferably audio, compatibility it is wider；The mobile terminal 60 has more Complete circuit function can play corresponding audio information transmissions function, mobile terminal 60 according to the actual demand of technical staff Practical value it is higher, the different circuit requirements of technical staff can be met, the mobile terminal 60 can be realized double-channel audio letter Number balanced transmission function, practicability is extremely strong, can generate high industrial value in actual application；Some solves biography The circuit function of mobile terminal is single in system technology, and voice communication quality is unbalanced, and the audio quality that user obtains is bad, two-way Audio signal is easy to appear uncoordinated in transmission process, and the audio experience of user is bad, the circuit function of the mobile terminal It is unable to satisfy the actual demand of user, it is difficult to blanket problem.

Various embodiments are described to various devices, circuit, device, system and or method herein.It elaborates very much Specific details is to provide general construction, the function, system of the embodiment that the sum as described in the description is shown in the accompanying drawings The thorough understanding made and used.However it will be understood by those skilled in the art that embodiment can be in not such certain detail It is carried out in the case where section.In other examples, well known operation, component and element is described in detail, in order to avoid make in specification In embodiment indigestion.It will be understood by those skilled in the art that being unrestricted in the embodiment with shown in herein Property example, and therefore it can be appreciated that, can be in specific structure and function details disclosed herein representative and and different The range of definite limitation embodiment.

Throughout the specification to " various embodiments ", " in embodiments ", " embodiment " or " embodiment party The reference of formula " etc., which is meant, is included at least one embodiment about a particular feature, structure, or characteristic described in embodiment In.Therefore, phrase " in various embodiments ", " in some embodiments ", " in one embodiment " or " implementing In mode " etc. the appearance in appropriate place throughout the specification be not necessarily all referring to same embodiment.In addition, specific spy Sign, structure or characteristic can combine in any suitable manner in one or more embodiments.Implement accordingly, with respect to one The a particular feature, structure, or characteristic that mode shows or describes can entirely or partly with one or more of the other embodiment spy Sign, structure or characteristic are combined, without assuming that such combination is not illogical or non-functional limitation.Any side To with reference to (for example, add, subtract, top, lower part, upwards, downwards, the left side, the right, to the left, to the right, top, bottom ... On ... under, it is vertical, horizontal, clockwise and anticlockwise) purpose to be for identification to help reader to understand present disclosure, And limitation is not generated, especially with regard to the position of embodiment, orientation or use.

Although describing certain embodiments above with some the level of detail, those of skill in the art can be to institute Disclosed embodiment makes many changes without departing from the scope of the present disclosure.Connection is with reference to (for example, attachment, coupling, connection Deng) should be widely interpreted, and may include the intermediate member between the connection of element and relative motion between elements.Cause This, connection reference does not necessarily imply that two elements are directly connected to/couple and are in fixed relationship each other." such as " entire Use in specification should be widely interpreted and for providing the non-limitative example of embodiment of the present disclosure, and the disclosure It is not limited to such example.Being intended that all affairs for including in the foregoing description or be shown in the accompanying drawings should be interpreted only It is illustrative rather than restrictive.The variation in details or structure can be made without departing from the disclosure.

The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle Within the scope of shield.

Claims

1. a kind of communicating circuit of double antenna earphone characterized by comprising

It is configured as generating the control module of rf communication signal；

It is connect with the control module, is configured as being balanced the rf communication signal balance of conversion, balance transmission Conversion module；And

It connect, is configured as according to the rf communication signal receiving and transmitting signal after the balance conversion with the balance conversion module Anneta module；

Wherein, the Anneta module includes first antenna and the second antenna, and the first antenna and second antenna setting exist In double antenna earphone, the radiation parameter of both the first antenna and described second antenna is consistent.

2. communicating circuit according to claim 1, which is characterized in that the balance conversion module includes:

It is connect with the control module, is configured as being balanced the rf communication signal that be converted to first via radio frequency logical Believe the first Balun converter of signal and the second road rf communication signal；

It is connected between the first Balun converter and the first antenna, is configured as to the first via radio communication Signal is balanced the 2nd Balun converter of transmission；And

It is connected between the first Balun converter and second antenna, is configured as to second tunnel radio communication Signal is balanced the 3rd Balun converter of transmission.

3. communicating circuit according to claim 2, which is characterized in that the first Balun converter includes the first Balun Conversion chip, the 2nd Balun converter include the 2nd Balun conversion chip, and the 3rd Balun converter includes third Balun conversion chip；

Wherein, the uneven detection pin of the first Balun conversion chip connects the control module, and the first Balun turns Change the ground pin ground connection of chip；

The communication anode pin of the communication of the 2nd Balun conversion chip positive pin and the 3rd Balun conversion chip It is connected to the communication anode pin of the first Balun conversion chip, the communication cathode pin of the 2nd Balun conversion chip altogether It is connected to the communication cathode tube of the first Balun conversion chip altogether with the communication cathode pin of the 3rd Balun conversion chip Foot；

The ground pin of the 2nd Balun conversion chip is grounded, the ground pin ground connection of the 3rd Balun conversion chip；

The uneven detection pin of the 2nd Balun conversion chip connects the first antenna, the 3rd Balun conversion chip Uneven detection pin connect second antenna.

4. communicating circuit according to claim 1, which is characterized in that the first antenna and second antenna are set respectively It sets at the both ends of the double antenna earphone.

5. communicating circuit according to claim 1, which is characterized in that the first antenna and second antenna are all arranged In one end of the double antenna earphone.

6. communicating circuit according to claim 1, which is characterized in that the radiation parameter includes: the transmission range of signal.

7. communicating circuit according to claim 1, which is characterized in that the control module includes Bluetooth communication chip；

8. communicating circuit according to claim 1, which is characterized in that the shape of the first antenna and second antenna Shape it is identical.

9. a kind of double antenna earphone characterized by comprising

Earphone outer covering；

In the earphone outer covering, such as the communicating circuit of the described in any item double antenna earphones of claim 1-8；And

10. a kind of mobile terminal, which is characterized in that including double antenna earphone as claimed in claim 9.