CN104581479A - Demountable wireless earphone system - Google Patents
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Abstract
The invention discloses a demountable wireless earphone system. The system comprises a wireless earphone main body and a wired earphone, wherein the wireless earphone main body comprises a main controller and an audio switching unit connected with the main controller; the audio switching unit is used for switching an interface wire sequence of an audio socket; the wired earphone comprises an audio plug and a loudspeaker; the audio plug of the wired earphone is inserted into the audio socket of the wireless earphone main body in use; the main controller is used for judging whether the interface wire sequence of the audio plug is consistent with the interface wire sequence of the audio socket when the audio plug of the wired earphone is inserted into the audio socket of the wireless earphone main body and controlling the audio switching unit to switch the interface wire sequence of the audio socket to be consistent with the interface wire sequence of the audio plug when the interface wire sequences are inconsistent. According to the technical scheme, the audio switching unit is additionally arranged in the wireless earphone main body, so that the purpose of matching the demountable wireless earphone system with all wired earphones with audio interfaces which are 3.5 mm in size in the market can be achieved.
Description
Technical field
The present invention relates to wireless communication technology field, particularly the detachable wireless headphone system of one.
Background technology
Detachable wireless listening equipment, by using Radio Transmission Technology, makes user can break away from the constraint of earphone transmission line, user demand when meeting user movement or take exercise.Such as detachable wireless headset, by the puzzlement using wireless technology well to solve wired earphone transmission line, obtains liking of user.
But detachable wireless headset of the prior art at least has two defects: one, due to the line sequence disunity of wired earphone on the market, the wired earphone interface line sequence such as had is Left Speaker (L channel), Right Speaker (R channel), GND (), MIC (microphone), also L channel L can be denoted as, R channel R, ground GND, microphone MIC, that have is Left Speaker, Right Speaker, MIC, GND, that also have is Left Speaker, Right Speaker, GND, therefore the problem that interface is incompatible can be caused, affect the experience of user, its two, because wired earphone on the market exists performance difference, the speech quality of earphone (such as wired headset or line traffic control having the wired earphone of microphone) of part band microphone is poor, can affect the experience of user further.
Summary of the invention
In view of the above problems, a kind of detachable wireless headphone system is proposed.The invention provides a kind of detachable wireless headphone system, to overcome the problems referred to above or to solve the problem at least in part.
For achieving the above object, technical scheme of the present invention is achieved in that
Embodiments provide a kind of detachable wireless headphone system, comprise wireless headset main body and wired earphone two parts, radio receiving transmitting module, the first microphone and audio socket that described wireless headset main body comprises master controller, is connected respectively with master controller; Described wired earphone part comprises audio jack and loudspeaker; During use, the audio jack of described wired earphone inserts the audio socket of described wireless headset main body; Described wireless headset main body also comprises the audio switching unit be connected with master controller,
Described audio switching unit, for switching the interface line sequence of described audio socket;
Described master controller, for when the audio jack of described wired earphone inserts described audio socket, judges that whether the interface line sequence of described audio jack is consistent with the interface line sequence of described audio socket; And when interface line sequence is inconsistent, controls described audio switching unit and the interface line sequence of described audio socket is switched to consistent with the interface line sequence of described audio jack.
Preferably, described audio switching unit comprises the first Audio conversion switch and the second Audio conversion switch;
Described first Audio conversion switch, consistent with the interface line sequence of audio jack of the wired earphone with microphone for the interface line sequence that switches described audio socket;
Described second Audio conversion switch, consistent with the interface line sequence of audio jack of the wired earphone without microphone for the interface line sequence that switches described audio socket.
Preferably, described audio socket interface line sequence can in first interface line sequence, the second interface line sequence and the 3rd interface line sequence two or three between switch; Described first interface line sequence be L channel L, R channel R, microphone MIC, GND, described second interface line sequence be L channel L, R channel R, GND, microphone MIC, described 3rd interface line sequence be L channel L, R channel R, GND.
Preferably, described master controller, the on off state of described first Audio conversion switch and described second Audio conversion switch is further used for be set to the first on off state respectively, and after the audio jack of described wired earphone is inserted, the interface line sequence realizing described audio socket at least switches between first interface line sequence and the second interface line sequence, or the interface line sequence realizing described audio socket switches in first interface line sequence or between the second interface line sequence and the 3rd interface line sequence; Wherein,
The interface line sequence realizing described audio socket at least switches between first interface line sequence and the second interface line sequence, comprising:
Close the first microphone of described wireless headset main body, carry out echo test, if echo detected, then judge that described wired earphone uses the audio jack of first interface line sequence, and open the first microphone of described wireless headset main body;
If echo do not detected, the on off state of described first Audio conversion switch is set to second switch state, and again carry out echo test, if echo detected, then judge that described wired earphone uses the audio jack of the second interface line sequence, and open the first microphone of described wireless headset main body;
The interface line sequence realizing described audio socket switches in first interface line sequence or between the second interface line sequence and the 3rd interface line sequence, comprising:
Close the first microphone of described wireless headset main body, carry out echo test, if echo detected, then judge that described wired earphone uses the audio jack consistent with the interface line sequence of audio socket, and open the first microphone of described wireless headset main body;
If echo do not detected, the on off state of described second Audio conversion switch is set to the 3rd on off state, and proceed echo test, if echo detected, then judge that described wired earphone uses the audio jack of the 3rd interface line sequence, and open the first microphone of described wireless headset main body;
If also echo do not detected, then judge that the audio jack of described wired earphone uses the interface line sequence except the interface line sequence of audio socket and the 3rd interface line sequence.
Preferably, the interface line sequence realizing described audio socket at least switches between first interface line sequence and the second interface line sequence, also comprises: described again carry out echo test time,
If echo detected not yet, the on off state of described second Audio conversion switch is set to the 3rd on off state, and proceed echo test, if echo detected, then judge that described wired earphone uses the audio jack of the 3rd interface line sequence, and open the first microphone of described wireless headset main body;
If also echo do not detected, then judge that described wired earphone occurs abnormal.
Preferably, described wireless headset main body also comprises the control button be connected with master controller,
Described control button, for when operating described control button with predetermined action to described master controller sending controling instruction, controlling described master controller by described first Audio conversion switch and/or described second Audio conversion switch-linear hybrid is predetermined on off state.
Preferably, described master controller is further used for,
Convert the control command received to high and low level signal, controlled the on off state of described first Audio conversion switch and/or described second Audio conversion switch by high level and low level signal.
Preferably, described first Audio conversion switch and/or described second Audio conversion switch are integrated two-way single-pole double throw Audio conversion switch chip;
Or the separate type integrated switching circuit to be built by metal oxide semiconductor field effect tube, triode.
Preferably, described wireless headset main body also comprises the audio signal processing unit be connected with master controller;
If described wired earphone has second microphone, the first microphone that described master controller arranges described wireless headset main body is auxiliary microphone, and the second microphone arranging wired earphone is main microphone;
Described audio signal processing unit, superposes the noise signal of the voice signal of described main microphone pickup with described auxiliary microphone pickup, the noise signal in voice signal described in filtering.
Preferably, described audio socket and described audio jack are 3.5mm interface.
The beneficial effect of the embodiment of the present invention is: the embodiment of the invention discloses a kind of detachable wireless headphone system, by adding audio switching unit in wireless headset main part, switch the interface line sequence of audio socket, make the interface line sequence of the audio socket of wireless headset main body consistent with the interface line sequence of the audio jack of wired earphone, thus reach the object of the wired earphone of coupling great majority 3.5mm audio interface on the market.
In a preferred embodiment, the microphone of wired earphone is set to main microphone, the microphone of wireless headset main body is set to auxiliary microphone, the voice signal of main microphone pickup is superposed by the noise signal of auxiliary microphone pickup, the noise of filtering voice signal, improves the speech quality between this system and mobile device.
Accompanying drawing explanation
The composition structural representation of a kind of detachable wireless headphone system that Fig. 1 provides for the embodiment of the present invention;
The circuit theory diagrams of a kind of bluetooth earphone main body that Fig. 2 provides for the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
The composition structural representation of a kind of detachable wireless headphone system that Fig. 1 provides for the embodiment of the present invention, this system comprises wireless headset main body 11 and wired earphone 12 two parts, radio receiving transmitting module 111, first microphone 112, audio socket 113 and audio switching unit 114 that wireless headset main body 11 comprises master controller 110, is connected respectively with master controller 110; Wired earphone 12 part comprises audio jack 121 and loudspeaker 122, and wherein audio socket 113 and audio jack 121 have 3.5mm audio interface; During use, the audio jack 121 of wired earphone 12 inserts the audio socket 113 of wireless headset main body 11.
Audio switching unit 114, for switching the interface line sequence of audio socket 113;
Radio receiving transmitting module 111, for realizing the communication between native system and mobile device, can be bluetooth module or WIFI module;
Master controller 110, for when the audio jack 121 of wired earphone 12 inserts audio socket 113, judges that whether the interface line sequence of audio jack 121 is consistent with the interface line sequence of audio socket 113; And when interface line sequence is inconsistent, controls audio switching unit 114 and the interface line sequence of audio socket 113 is switched to consistent with the interface line sequence of audio jack 121.
Wherein, audio socket 113 interface line sequence can in first interface line sequence, the second interface line sequence and the 3rd interface line sequence two or three between switch; First interface line sequence be L channel L, R channel R, microphone MIC, GND, the second interface line sequence be L channel L, R channel R, GND, microphone MIC, the 3rd interface line sequence be L channel L, R channel R, GND.
The present embodiment, by adding audio switching unit in wireless headset main part, enables detachable wireless headphone system mate wired earphone on the market, makes user can select according to user demand the wired earphone that is applicable to, improves experience.
In the preferred embodiment of the present invention, audio switching unit 114 comprises the first Audio conversion switch and the second Audio conversion switch.
First Audio conversion switch, consistent with the interface line sequence of audio jack 121 of the wired earphone with microphone for the interface line sequence that switches audio socket 113;
Second Audio conversion switch, consistent with the interface line sequence of audio jack 121 of the wired earphone without microphone for the interface line sequence that switches audio socket 113.
In actual applications, first Audio conversion switch and/or the second Audio conversion switch can be integrated two-way single-pole double throw Audio conversion switch chip, or the separate type integrated switching circuit built by metal oxide semiconductor field effect tube (MOS), triode.
Concrete, master controller 110, the on off state of the first Audio conversion switch and the second Audio conversion switch is further used for be set to the first on off state respectively, and after the audio jack 121 of wired earphone 12 is inserted, the interface line sequence realizing audio socket 113 at least switches between first interface line sequence and the second interface line sequence, or the interface line sequence realizing audio socket 113 switches in first interface line sequence or between the second interface line sequence and the 3rd interface line sequence; Wherein,
The interface line sequence realizing audio socket 113 at least switches between first interface line sequence and the second interface line sequence, comprising:
Close the first microphone 112 of wireless headset main body 11, carry out echo test, in the present embodiment, directly utilize people's ear sense of hearing to detect echo, if hear echo, then judge that wired earphone 12 uses the audio jack of first interface line sequence, and open the first microphone 112 of wireless headset main body 11;
If can't hear echo, the on off state of the first Audio conversion switch is set to second switch state, and again carries out echo test, if hear echo, then judge that wired earphone 12 uses the audio jack of the second interface line sequence, and open the first microphone 112 of wireless headset main body 11;
If echo detected not yet, the on off state of the second Audio conversion switch is set to the 3rd on off state, and proceed echo test, if do not hear echo, then judge that wired earphone 12 uses the audio jack 121 of the 3rd interface line sequence, and open the first microphone 112 of wireless headset main body 11;
If also do not hear echo, then judge that exception appears in wired earphone 12.
The interface line sequence realizing audio socket 113 switches in first interface line sequence or between the second interface line sequence and the 3rd interface line sequence, comprising:
Close the first microphone 112 of wireless headset main body 11, carry out echo test, if hear echo, then judge that wired earphone 12 uses the audio jack consistent with the interface line sequence of audio socket 113, and open the first microphone 112 of wireless headset main body 11;
If do not hear echo, the on off state of the second Audio conversion switch is set to the 3rd on off state, and proceeds echo test, if hear echo, then judge that wired earphone 12 uses the audio jack of the 3rd interface line sequence, and open the first microphone 112 of wireless headset main body 11;
If also do not hear echo, then judge that the audio jack 121 of wired earphone 12 uses the interface line sequence except the interface line sequence of audio socket 113 and the 3rd interface line sequence.
In other embodiments of the invention, the subjective judgement of people's ear sense of hearing when echo is tested can be substituted by sonic detection analytical instrument, realize more accurate detection of echoes.
In the preferred embodiment, this wireless headset main body 11 also comprises the control button be connected with master controller 110, for with predetermined action operation control button time to master controller 110 sending controling instruction, such as long by controlling the button scheduled time to master controller 110 sending controling instruction, the first Audio conversion switch and/or the second Audio conversion switch-linear hybrid are predetermined on off state according to control command by control master controller 110.In the technical program, the control command corresponding conversion received is become high and low level signal by master controller 110, controls the on off state of the first Audio conversion switch and/or the second Audio conversion switch by sending high level and low level signal to audio switching unit 114.
It should be noted that, the control button in this preferred embodiment can coordinate with LED, as the man-machine interaction unit of native system.Such as, control button also can realize system switching machine, connect phone, and makes this control button comprise tune key and lower tune key, realizes audio frequency control, such as, realize the plus/minus of volume, a upper song/basic interactive function such as next song, time-out/broadcasting.
In another preferred embodiment of the present invention, wireless headset main body 11 also comprises the audio signal processing unit be connected with master controller 110;
If wired earphone tool 12 has second microphone 123, the first microphone 112 that master controller 110 arranges wireless headset main body 11 is auxiliary microphone, and the second microphone 123 arranging wired earphone 12 is main microphone;
Audio signal processing unit, superposes the noise signal of the voice signal of main microphone pickup with auxiliary microphone pickup, the noise signal in voice signal described in filtering.Because the second microphone 123 on wired earphone 12 is closer to the mouth of user, the voice of user can be received better, and the microphone on wired earphone 12 can, in use according to the position of user demand adjustment microphone, make call more clear.Therefore the second microphone on wired earphone is set to main microphone and is used for picking up call voice signal by the technical program, first microphone of wireless headset main body is set to auxiliary microphone and is used for picking up the background noise of call environment, with the noise in filtering voice signal, improve speech quality further; The technical program, when wired earphone does not have microphone, utilizes the first microphone in wireless headset main body to realize call, to make user can select suitable talking mode according to different wired earphones, improves user's experience further.
Detachable wireless headphone system in technique scheme also comprises certainly for providing the crystal oscillator of clock signal for system, providing the battery of energy for system, for storing the memory of various configuration information and other data.
Detachable wireless headphone system in technique scheme can also comprise motion detection unit, for detecting amount of exercise.This motion detection unit is made up of various kinds of sensors usually, such as, be used for realizing the acceleration transducer of note step function.
Detachable wireless headphone system in technique scheme can also comprise Earphone Amplifier, and this Earphone Amplifier is connected with master controller 110, for switched audio signal.The audio signal that even master controller 110 exports is differential signal, and differential signal can be converted to Single-end output signal by Earphone Amplifier.
In a specific embodiment of the present invention, provide a kind of detachable Bluetooth earphone system, this system can with the mobile devices such as mobile phone with the use of, be made up of bluetooth earphone main body and wired earphone two parts, communicated by 3.5mm audio interface between the two.
The detachable Bluetooth earphone system structure of the present embodiment is convenient to dismounting, facilitates user to split and carry.
The operation principle of the detachable Bluetooth earphone system of the present embodiment is: the bluetooth module of bluetooth earphone main body can signal of communication between transmission system and mobile phone, after bluetooth module receives the audio signal from mobile phone, the left and right loudspeaker being transferred to wired earphone by 3.5mm audio interface are sounded; After the microphone of wired earphone receives voice signal, be transferred in bluetooth earphone main body by 3.5mm audio interface, superpose with the noise signal from auxiliary microphone in main body, the voice signal after noise reduction process is sent to mobile phone by bluetooth module, realizes call function; And when wired earphone does not comprise microphone, realize call function by the first microphone in bluetooth earphone main body.
The circuit theory diagrams of a kind of bluetooth earphone main body that Fig. 2 provides for the embodiment of the present invention, this bluetooth earphone main body comprises master controller 200, audio socket 201, bluetooth module 202 and the first Audio conversion switch 203, second Audio conversion switch 204, first microphone 205, the Earphone Amplifier 206 that are connected respectively with master controller, controls button 207, LED 208, memory 209, crystal oscillator 210, battery 211, motion detection unit 212, filter 213.
Master controller 200 is the centralized control unit of native system, is used for coordinating the orderly function of various piece; Master controller 200 inside in the present embodiment also embedded in audio signal processing unit, carries out noise reduction process for the voice signal picked up wired earphone.Whether master controller 200 can also be gone out wired earphone and be inserted in audio socket by its insertion detection GPIO (General Purpose Input Output, universal input/output) Port detecting simultaneously.
MIC signal end 1 and the GND signal end 2 of wired earphone audio jack interface is schematically provided in Fig. 2, and two of audio socket 201 groups of MIC signal end a and c, GND signal end b and d, the signal end that the Left Speaker of the signal end that the Left Speaker of audio jack interface and Right Speaker is corresponding and audio socket 201 and Right Speaker is corresponding is not shown in fig. 2.
In the present embodiment, when master controller 200 is initial, the first Audio conversion switch 203 and the second Audio conversion switch 204 are set to the first on off state shown in Fig. 2 by (wired earphone does not insert) respectively, after wired earphone inserts, change the on off state of the first Audio conversion switch 203 and the second Audio conversion switch 204 according to the corresponding control command received.Wherein the first Audio conversion switch 203 with the first on off state of the second Audio conversion switch 204 is: the first Audio conversion switch 203 makes the MIC signal end a of audio socket 201 be communicated with the MIC signal end 1 of audio jack, make the GND signal end c of audio socket 201 hold 2 to be communicated with the GND of audio jack, the second Audio conversion switch 204 makes MIC signal end a with c of audio socket 201 disconnect not being communicated with ground;
The second switch state of the first Audio conversion switch 203 is: by the first Audio conversion switch 203, the MIC signal end d of audio socket 201 is communicated with the MIC signal end 1 of audio jack, make the GND signal end b of audio socket 201 hold 2 to be communicated with the GND of audio jack, now the second Audio conversion switch 204 maintains the first on off state;
3rd on off state of the second Audio conversion switch 204 is: the second Audio conversion switch 204 makes MIC signal end a with c of audio socket 201 be communicated with ground, now the first Audio conversion switch 203 can maintain second switch state, also can reset, namely be communicated with any two in a, b, c, c signal end.
In the present embodiment, when controlling button 207 with predetermined action manipulation, to master controller 200 sending controling instruction, master controller 200 converts corresponding control command to high and low level signal, and controlling the first Audio conversion switch 203, second Audio conversion switch 204 by high level and low level signal is predetermined on off state.Wherein, high and low level signal passes through GPIO port transmission to the first Audio conversion switch 203, second Audio conversion switch 204.
When the audio jack of wired earphone main body inserts the audio socket 201 of bluetooth earphone main body,
Master controller 200 cuts out the first microphone 205 of bluetooth earphone main body, carry out echo test, if hear echo, the first current Audio conversion switch 203 and the first on off state at the second Audio conversion switch 204 are then described, the interface line sequence of audio socket 201 can be made to meet the interface line sequence of the audio jack of wired earphone, then can judge that wired earphone uses the audio jack of first interface line sequence, the interface line sequence of this wired earphone is Left Speaker, Right Speaker, MIC, GND, open the microphone 205 of bluetooth earphone main body simultaneously, first microphone 205 is set to auxiliary microphone, the microphone of wired earphone is set to main microphone,
If can't hear echo, by long control button 207 at preset timed intervals, (such as length presses the upper tune key that 3s controls button 207, on this, tune key can " volume+" key of multiplexed Bluetooth earphone, namely volume increases key), master controller 200 passes through its IO (I/O) Port detecting to control signal, the on off state controlling the first Audio conversion switch 203 is second switch state, and again carry out echo test, if hear echo, the first current Audio conversion switch 203 and the on off state at the second Audio conversion switch 204 are then described, the interface line sequence of audio socket 201 can be made to meet the interface line sequence of audio jack, then can judge that this wired earphone uses the audio jack of the second interface line sequence, the interface line sequence of this wired earphone is Left Speaker, Right Speaker, GND, MIC, open the microphone 205 of bluetooth earphone main body simultaneously, first microphone 205 is set to auxiliary microphone, the microphone of wired earphone is set to main microphone,
If can't hear echo, by long control button 207 at preset timed intervals, (such as length presses the lower tune key that 3s controls button 207, this lower tune key can " volume-" key of multiplexed Bluetooth earphone, namely volume reduces key), master controller 200 passes through its IO Port detecting to control signal, the on off state controlling the second Audio conversion switch 203 is the 3rd on off state, and proceed echo test, if hear echo, the first current Audio conversion switch 203 and the on off state at the second Audio conversion switch 204 are then described, the interface line sequence of audio socket 201 can be made to meet the interface line sequence of audio jack, then can judge that this wired earphone uses the audio jack of the 3rd interface line sequence, the interface line sequence of this wired earphone is Left Speaker, Right Speaker, GND, open the first microphone 205 of bluetooth earphone main body simultaneously.
If still can't hear echo, then judge that this wired earphone occurs abnormal.
When the interface line sequence of master controller 200 audio socket 201 switches to consistent with the interface line sequence of the audio jack of wired earphone, the audio signal of the mobile phone that bluetooth module 202 receives by master controller 200 is after filtering after device 213 filtering process, after Earphone Amplifier 206 converts differential signal to Single-end output signal, sent to by audio socket 201 in the left and right loudspeaker of wired earphone and play, user is according to receiving message, the microphone aimed in wired earphone is replied, the microphone of earphone by pickup to voice signal to be sent to the audio signal processing unit of master controller 200 by the audio interface of audio jack and audio socket 201, after audio signal processing unit carries out noise reduction process to voice signal, mobile phone is sent to by bluetooth module 202, realize noise reduction call function.
In the above-described embodiments, the switching that the audio socket 201 of bluetooth earphone main body can be mutual between three kinds of interface line sequences.In other embodiments of the invention, the switching that audio socket 201 can only realize two kinds of interface line sequences also can be set, such as only switch between first interface line sequence and the second interface line sequence, or only switch between first interface line sequence and the 3rd interface line sequence, or only switch between the second interface line sequence and the 3rd interface line sequence.
Such as, the embodiment of the present invention can be led to the interface line sequence that following proposal realizes audio socket 201 and only be switched between first interface line sequence and the second interface line sequence, comprising:
Close the first microphone 205 of bluetooth earphone main body, carry out echo test, if hear echo, then judge that wired earphone uses the audio jack of first interface line sequence, the interface line sequence of this wired earphone is Left Speaker, Right Speaker, MIC, GND, and opens the first microphone 205 of bluetooth earphone main body;
If do not hear echo, the on off state of the first Audio conversion switch is set to second switch state, and again carry out echo test, if hear echo, then judge that wired earphone uses the audio jack of the second interface line sequence, the interface line sequence of this wired earphone is Left Speaker, Right Speaker, GND, MIC, and opens the first microphone 205 of bluetooth earphone main body;
If hear echo not yet, then judge that wired earphone uses the 3rd interface line sequence, namely the interface line sequence of this wired earphone is Left Speaker, Right Speaker, GND.
And for example, the interface line sequence that the embodiment of the present invention can realize audio socket 201 by following proposal only switches between first interface line sequence and the 3rd interface line sequence, and now the interface line sequence of audio socket 201 is first interface line sequence, and this switching specifically comprises:
Close the first microphone 205 of bluetooth earphone main body, carry out echo test, if hear echo, then judge that wired earphone uses the audio jack of first interface line sequence, the interface line sequence of this wired earphone is Left Speaker, Right Speaker, MIC, GND, and opens the first microphone 205 of bluetooth earphone main body;
If do not hear echo, the on off state of the second Audio conversion switch is set to the 3rd on off state, and proceed echo test, if hear echo, then judge that wired earphone uses the audio jack of the 3rd interface line sequence, the interface line sequence of this wired earphone is Left Speaker, Right Speaker, GND, and opens the first microphone 205 of bluetooth earphone main body;
If also do not hear echo, then judge that wired earphone uses the audio jack of the second interface line sequence, namely the interface line sequence of this wired earphone is Left Speaker, Right Speaker, GND, MIC.
In like manner, the interface line sequence realizing audio socket 201 only switches between the second interface line sequence and the 3rd interface line sequence, and now the interface line sequence of audio socket 201 is the second interface line sequence, and this switching specifically comprises:
Close the first microphone 205 of bluetooth earphone main body, carry out echo test, if hear echo, then judge that wired earphone uses the audio jack of the second interface line sequence, the interface line sequence of this wired earphone is Left Speaker, Right Speaker, GND, MIC, and opens the first microphone 205 of bluetooth earphone main body;
If do not hear echo, the on off state of the second Audio conversion switch is set to the 3rd on off state, and proceed echo test, if hear echo, then judge that wired earphone uses the audio jack of the 3rd interface line sequence, the interface line sequence of this wired earphone is Left Speaker, Right Speaker, GND, and opens the first microphone 205 of bluetooth earphone main body;
If also do not hear echo, then judge that wired earphone uses the audio jack of first interface line sequence, namely the interface line sequence of this wired earphone is Left Speaker, Right Speaker, MIC, GND.
In sum, the embodiment of the invention discloses a kind of detachable wireless headphone system, by adding audio switching unit in wireless headset main part, switch the interface line sequence of audio socket, make the interface line sequence of the audio socket of wireless headset main body consistent with the interface line sequence of the audio jack of wired earphone, thus reach the object of the wired earphone of coupling great majority 3.5mm audio interface on the market.In a preferred embodiment, the microphone of wired earphone is set to main microphone, the microphone of wireless headset main body is set to auxiliary microphone, the voice signal of main microphone pickup is superposed by the noise signal of auxiliary microphone pickup, the noise of filtering voice signal, improves the speech quality between this system and mobile device.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (10)
1. a detachable wireless headphone system, comprises wireless headset main body and wired earphone two parts, radio receiving transmitting module, the first microphone and audio socket that described wireless headset main body comprises master controller, is connected respectively with master controller; Described wired earphone part comprises audio jack and loudspeaker; During use, the audio jack of described wired earphone inserts the audio socket of described wireless headset main body; It is characterized in that, described wireless headset main body also comprises the audio switching unit be connected with master controller,
Described audio switching unit, for switching the interface line sequence of described audio socket;
Described master controller, for when the audio jack of described wired earphone inserts described audio socket, judges that whether the interface line sequence of described audio jack is consistent with the interface line sequence of described audio socket; And when interface line sequence is inconsistent, controls described audio switching unit and the interface line sequence of described audio socket is switched to consistent with the interface line sequence of described audio jack.
2. detachable wireless headphone system according to claim 1, is characterized in that, described audio switching unit comprises the first Audio conversion switch and the second Audio conversion switch;
Described first Audio conversion switch, consistent with the interface line sequence of audio jack of the wired earphone with microphone for the interface line sequence that switches described audio socket;
Described second Audio conversion switch, consistent with the interface line sequence of audio jack of the wired earphone without microphone for the interface line sequence that switches described audio socket.
3. detachable wireless headphone system according to claim 2, is characterized in that, the interface line sequence of described audio socket can in first interface line sequence, the second interface line sequence and the 3rd interface line sequence two or three between switch; Described first interface line sequence be L channel L, R channel R, microphone MIC, GND, described second interface line sequence be L channel L, R channel R, GND, microphone MIC, described 3rd interface line sequence be L channel L, R channel R, GND.
4. detachable wireless headphone system according to claim 3, it is characterized in that, described master controller, the on off state of described first Audio conversion switch and described second Audio conversion switch is further used for be set to the first on off state respectively, and after the audio jack of described wired earphone is inserted, the interface line sequence realizing described audio socket at least switches between first interface line sequence and the second interface line sequence, or the interface line sequence realizing described audio socket switches in first interface line sequence or between the second interface line sequence and the 3rd interface line sequence; Wherein,
The interface line sequence realizing described audio socket at least switches between first interface line sequence and the second interface line sequence, comprising:
Close the first microphone of described wireless headset main body, carry out echo test, if echo detected, then judge that described wired earphone uses the audio jack of first interface line sequence, and open the first microphone of described wireless headset main body;
If echo do not detected, the on off state of described first Audio conversion switch is set to second switch state, and again carry out echo test, if echo detected, then judge that described wired earphone uses the audio jack of the second interface line sequence, and open the first microphone of described wireless headset main body;
The interface line sequence realizing described audio socket switches in first interface line sequence or between the second interface line sequence and the 3rd interface line sequence, comprising:
Close the first microphone of described wireless headset main body, carry out echo test, if echo detected, then judge that described wired earphone uses the audio jack consistent with the interface line sequence of audio socket, and open the first microphone of described wireless headset main body;
If echo do not detected, the on off state of described second Audio conversion switch is set to the 3rd on off state, and proceed echo test, if echo detected, then judge that described wired earphone uses the audio jack of the 3rd interface line sequence, and open the first microphone of described wireless headset main body;
If also echo do not detected, then judge that the audio jack of described wired earphone uses the interface line sequence except the interface line sequence of audio socket and the 3rd interface line sequence.
5. detachable wireless headphone system according to claim 4, is characterized in that, the interface line sequence realizing described audio socket at least switches between first interface line sequence and the second interface line sequence, also comprises: described again carry out echo test time,
If echo detected not yet, the on off state of described second Audio conversion switch is set to the 3rd on off state, and proceed echo test, if echo detected, then judge that described wired earphone uses the audio jack of the 3rd interface line sequence, and open the first microphone of described wireless headset main body;
If also echo do not detected, then judge that described wired earphone occurs abnormal.
6. detachable wireless headphone system according to claim 4, is characterized in that, described wireless headset main body also comprises the control button be connected with master controller,
Described control button, for when operating described control button with predetermined action to described master controller sending controling instruction, controlling described master controller by described first Audio conversion switch and/or described second Audio conversion switch-linear hybrid is predetermined on off state.
7. detachable wireless headphone system according to claim 6, is characterized in that, described master controller is further used for,
Convert the control command received to high and low level signal, controlled the on off state of described first Audio conversion switch and/or described second Audio conversion switch by high level and low level signal.
8. detachable wireless headphone system according to claim 2, is characterized in that, described first Audio conversion switch and/or described second Audio conversion switch are integrated two-way single-pole double throw Audio conversion switch chip;
Or the separate type integrated switching circuit to be built by metal oxide semiconductor field effect tube, triode.
9. the detachable wireless headphone system according to any one of claim 1-8, is characterized in that, described wireless headset main body also comprises the audio signal processing unit be connected with master controller;
If described wired earphone has second microphone, the first microphone that described master controller arranges described wireless headset main body is auxiliary microphone, and the second microphone arranging wired earphone is main microphone;
Described audio signal processing unit, superposes the noise signal of the voice signal of described main microphone pickup with described auxiliary microphone pickup, the noise signal in voice signal described in filtering.
10. detachable wireless headphone system according to claim 1, is characterized in that, described audio socket and described audio jack are 3.5mm interface.
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| CN201410785156.5A CN104581479B (en) | 2014-12-17 | 2014-12-17 | A kind of detachable wireless headphone system |
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