CN104581479B - A kind of detachable wireless headphone system - Google Patents
A kind of detachable wireless headphone system Download PDFInfo
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Abstract
The invention discloses a kind of detachable wireless headphone system, the system includes wireless headset main body and wired earphone two parts；The audio switching unit that wireless headset main body includes master controller, is connected with master controller, the audio switching unit are used for the interface line sequence for switching audio socket；Wired earphone includes audio jack and loudspeaker；The audio jack of the wired earphone inserts the audio socket of the wireless headset main body during use, master controller is when the audio jack of the wired earphone inserts the audio socket, judge whether the interface line sequence of the audio jack is consistent with the interface line sequence of the audio socket, and when interface line sequence is inconsistent, the audio switching unit is controlled to switch to the interface line sequence of the audio socket consistent with the interface line sequence of the audio jack.The technical program reaches the purpose for the wired earphone for matching all 3.5mm COBBAIFs on the market by adding audio switching unit in wireless headset main body.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a detachable wireless earphone system.
Background
The detachable wireless listening device can enable a user to get rid of the constraint of the earphone transmission line by using a wireless transmission technology, and meets the use requirements of the user during exercise or exercise. For example, the detachable wireless earphone well solves the trouble of a wired earphone transmission line by using a wireless technology, and is loved by users.
However, the detachable wireless headset in the prior art has at least two disadvantages: first, because the line order of the wired earphones in the market is not uniform, for example, some wired earphone interface line orders are Left Speaker (Left sound channel), Right Speaker (Right sound channel), GND (ground), MIC (microphone), and may also be referred to as Left sound channel L, Right sound channel R, ground GND, microphone MIC, some are Left Speaker, Right Speaker, MIC, GND, and some are Left Speaker, Right Speaker, GND, the interface is incompatible, and the user experience is affected; secondly, due to the performance difference of wired earphones in the market, the call quality of some earphones with a microphone (such as wired headphones or wired earphones with a microphone by wire) is poor, and the use experience of the user is further influenced.
Disclosure of Invention
In view of the above, a detachable wireless headset system is provided. The present invention provides a detachable wireless headset system to overcome the above problems or at least partially solve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a detachable wireless earphone system, which comprises a wireless earphone main body and a wired earphone, wherein the wireless earphone main body comprises a main controller, a wireless transceiver module, a first microphone and an audio socket, wherein the wireless transceiver module, the first microphone and the audio socket are respectively connected with the main controller; the wired earphone part comprises an audio plug and a loudspeaker; when in use, the audio plug of the wired earphone is inserted into the audio socket of the wireless earphone body; the wireless headset main body further comprises an audio switching unit connected with the main controller,
the audio switching unit is used for switching an interface line sequence of the audio socket;
the main controller is used for judging whether the interface line sequence of the audio plug is consistent with the interface line sequence of the audio socket when the audio plug of the wired earphone is inserted into the audio socket; and when the interface line sequences are not consistent, controlling the audio switching unit to switch the interface line sequences of the audio socket to be consistent with the interface line sequences of the audio plug.
Preferably, the audio switching unit includes a first audio switch and a second audio switch;
the first audio frequency switch is used for switching the interface line sequence of the audio frequency socket to be consistent with the interface line sequence of the audio frequency plug of the wired earphone with the microphone;
the second audio frequency switch is used for switching the interface line sequence of the audio frequency socket to be consistent with the interface line sequence of the audio frequency plug of the wired earphone without the microphone.
Preferably, the interface line sequence of the audio jack can be switched between two or three of a first interface line sequence, a second interface line sequence and a third interface line sequence; the first interface line sequence is a left sound channel L, a right sound channel R, a microphone MIC and a ground GND, the second interface line sequence is a left sound channel L, a right sound channel R, a ground GND and a microphone MIC, and the third interface line sequence is a left sound channel L, a right sound channel R and a ground GND.
Preferably, the main controller is further configured to set the switch states of the first audio switch and the second audio switch to first switch states, and after the audio plug of the wired headset is plugged in, implement that the interface line sequence of the audio jack is switched at least between the first interface line sequence and the second interface line sequence, or implement that the interface line sequence of the audio jack is switched between the first interface line sequence or the second interface line sequence and the third interface line sequence; wherein,
the method for switching the interface line sequence of the audio socket between at least a first interface line sequence and a second interface line sequence comprises the following steps:
closing a first microphone of the wireless earphone main body, performing echo test, if echo is detected, judging that the wired earphone uses an audio plug of a first interface line sequence, and opening the first microphone of the wireless earphone main body;
if the echo is not detected, setting the switching state of the first audio frequency switch to be a second switching state, and carrying out echo test again, if the echo is detected, judging that the wired earphone uses an audio frequency plug of a second interface line sequence, and turning on a first microphone of the wireless earphone main body;
the method for switching the interface line sequence of the audio socket between the first interface line sequence or the second interface line sequence and the third interface line sequence comprises the following steps:
closing a first microphone of the wireless earphone main body, performing echo test, if echo is detected, judging that the wired earphone uses an audio plug consistent with an interface line sequence of an audio socket, and opening the first microphone of the wireless earphone main body;
if no echo is detected, setting the switching state of the second audio frequency switch to be a third switching state, continuing to perform echo test, and if the echo is detected, judging that the wired earphone uses an audio frequency plug of a third interface line sequence, and turning on a first microphone of the wireless earphone main body;
and if the echo is not detected, determining that the audio plug of the wired earphone uses an interface line sequence except the interface line sequence of the audio socket and the third interface line sequence.
Preferably, the interface line sequence of the audio jack is switched at least between a first interface line sequence and a second interface line sequence, and further includes: at the time of the echo test being performed again,
if the echo is not detected yet, setting the switching state of the second audio frequency change-over switch to be a third switching state, continuing to perform echo test, and if the echo is detected, judging that the wired earphone uses an audio frequency plug of a third interface line sequence, and turning on a first microphone of the wireless earphone main body;
and if the echo is not detected, judging that the wired earphone is abnormal.
Preferably, the wireless headset main body further comprises a control key connected with the main controller,
the control key is used for sending a control instruction to the main controller when the control key is operated by a preset action, and controlling the main controller to set the first audio frequency change-over switch and/or the second audio frequency change-over switch to be in a preset switch state.
Preferably, the master controller is further adapted to,
and converting the received control instruction into high and low level signals, and controlling the switching state of the first audio frequency change-over switch and/or the second audio frequency change-over switch through the high level and low level signals.
Preferably, the first audio frequency switch and/or the second audio frequency switch is an integrated two-way single-pole double-throw audio frequency switch chip;
or a separated integrated switch circuit built by a metal oxide semiconductor field effect transistor and a triode.
Preferably, the wireless headset main body further comprises an audio signal processing unit connected with the main controller;
if the wired earphone is provided with a second microphone, the main controller sets the first microphone of the wireless earphone main body as an auxiliary microphone and sets the second microphone of the wired earphone as a main microphone;
and the audio signal processing unit is used for superposing the voice signal picked up by the main microphone and the noise signal picked up by the auxiliary microphone and filtering the noise signal in the voice signal.
Preferably, the audio jack and the audio plug are 3.5mm interfaces.
The embodiment of the invention has the beneficial effects that: the embodiment of the invention discloses a detachable wireless earphone system, which is characterized in that an audio switching unit is added to a main body part of a wireless earphone to switch an interface line sequence of an audio socket, so that the interface line sequence of the audio socket of the main body of the wireless earphone is consistent with the interface line sequence of an audio plug of a wired earphone, and the purpose of matching wired earphones with 3.5mm audio interfaces on most markets is achieved.
In a preferred embodiment, a microphone of the wired headset is set as a main microphone, a microphone of the wireless headset main body is set as an auxiliary microphone, and a noise signal picked up by the auxiliary microphone is superposed with a voice signal picked up by the main microphone, so that noise of the voice signal is filtered, and the communication quality between the system and the mobile device is improved.
Drawings
Fig. 1 is a schematic structural diagram of a detachable wireless headset system according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a bluetooth headset according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a structure of a detachable wireless headset system according to an embodiment of the present invention, the system includes a wireless headset main body 11 and a wired headset 12, the wireless headset main body 11 includes a main controller 110, a wireless transceiver module 111, a first microphone 112, an audio jack 113 and an audio switching unit 114, which are respectively connected to the main controller 110; the wired earphone 12 portion includes an audio plug 121 and a speaker 122, wherein the audio jack 113 and the audio plug 121 have a 3.5mm audio interface; in use, the audio plug 121 of the wired earphone 12 is inserted into the audio jack 113 of the wireless earphone body 11.
An audio switching unit 114 for switching an interface line sequence of the audio jack 113;
the wireless transceiver module 111 is used for realizing communication between the system and the mobile device, and can be a bluetooth module or a WIFI module;
the main controller 110 is configured to determine whether an interface line sequence of the audio plug 121 is consistent with an interface line sequence of the audio jack 113 when the audio plug 121 of the wired headset 12 is inserted into the audio jack 113; and when the interface line sequence is not consistent, controlling the audio switching unit 114 to switch the interface line sequence of the audio socket 113 to be consistent with the interface line sequence of the audio plug 121.
The interface line sequence of the audio jack 113 can be switched between two or three of a first interface line sequence, a second interface line sequence and a third interface line sequence; the first interface line sequence is a left channel L, a right channel R, a microphone MIC and a ground GND, the second interface line sequence is a left channel L, a right channel R, a ground GND and a microphone MIC, and the third interface line sequence is a left channel L, a right channel R and a ground GND.
According to the embodiment, the audio switching unit is added to the main body part of the wireless earphone, so that the detachable wireless earphone system can be matched with wired earphones on the market, a user can select a suitable wired earphone according to the use requirement, and the use experience is improved.
In a preferred embodiment of the present invention, the audio switching unit 114 includes a first audio switch and a second audio switch.
A first audio switch for switching the interface line sequence of the audio jack 113 to be consistent with the interface line sequence of the audio plug 121 of the wired headset with a microphone;
and a second audio switch for switching the interface line sequence of the audio jack 113 to be identical to the interface line sequence of the audio plug 121 of the wired headset without a microphone.
In practical application, the first audio frequency switch and/or the second audio frequency switch can be an integrated double-path single-pole double-throw audio frequency switch chip or a separated integrated switch circuit built by a metal oxide semiconductor field effect transistor (MOS) and a triode.
Specifically, the main controller 110 is further configured to set the switch states of the first audio switch and the second audio switch to first switch states, respectively, and after the audio plug 121 of the wired earphone 12 is inserted, implement that the interface line sequence of the audio jack 113 is switched at least between the first interface line sequence and the second interface line sequence, or implement that the interface line sequence of the audio jack 113 is switched between the first interface line sequence or the second interface line sequence and the third interface line sequence; wherein,
the method for switching the interface line sequence of the audio jack 113 between at least a first interface line sequence and a second interface line sequence comprises the following steps:
closing the first microphone 112 of the wireless earphone main body 11, performing an echo test, in this embodiment, directly detecting an echo by using the hearing sense of human ears, if the echo is heard, determining that the wired earphone 12 uses the audio plug of the first interface line sequence, and opening the first microphone 112 of the wireless earphone main body 11;
if the echo can not be heard, setting the switch state of the first audio changeover switch to be a second switch state, and performing the echo test again, if the echo is heard, judging that the wired earphone 12 uses the audio plug of the second interface line sequence, and turning on the first microphone 112 of the wireless earphone main body 11;
if no echo is detected, setting the switch state of the second audio switch to be the third switch state, and continuing the echo test, if no echo is heard, determining that the wired earphone 12 uses the audio plug 121 of the third interface line sequence, and turning on the first microphone 112 of the wireless earphone main body 11;
if the echo is not heard yet, it is determined that the wired earphone 12 is abnormal.
The method for switching the interface line sequence of the audio jack 113 between the first interface line sequence or the second interface line sequence and the third interface line sequence includes:
turning off the first microphone 112 of the wireless headset main body 11, performing an echo test, if an echo is heard, determining that the wired headset 12 uses an audio plug consistent with an interface line sequence of the audio socket 113, and turning on the first microphone 112 of the wireless headset main body 11;
if no echo is heard, setting the switch state of the second audio changeover switch to be a third switch state, continuing the echo test, and if the echo is heard, judging that the wired earphone 12 uses the audio plug of the third interface line sequence, and turning on the first microphone 112 of the wireless earphone main body 11;
if no echo has been heard, it is determined that the audio plug 121 of the wired earphone 12 uses an interface line sequence other than the interface line sequence of the audio jack 113 and the third interface line sequence.
In other embodiments of the present invention, the acoustic wave detection analyzer can be used to replace the subjective judgment of human ear hearing sense during echo test, so as to realize more accurate echo detection.
In the preferred embodiment, the wireless headset main body 11 further includes a control key connected to the main controller 110 for sending a control command to the main controller 110 when the control key is operated in a predetermined action, for example, the control key is pressed for a predetermined time to send a control command to the main controller 110, and the main controller 110 is controlled to set the first audio switch and/or the second audio switch to a predetermined switch state according to the control command. In this embodiment, the main controller 110 correspondingly converts the received control command into high and low level signals, and sends the high and low level signals to the audio switching unit 114 to control the on/off state of the first audio switch and/or the second audio switch.
It should be noted that the control keys in the preferred embodiment may be used in conjunction with the LED lamp as the human-computer interaction unit of the system. For example, the control key may also implement system power on/off, call on, and make the control key include up and down sub-keys, implement audio control, e.g., implement basic interactive functions such as volume up/down, last/next, pause/play, etc.
In another preferred embodiment of the present invention, the wireless headset main body 11 further includes an audio signal processing unit connected to the main controller 110;
if the wired earphone 12 has the second microphone 123, the main controller 110 sets the first microphone 112 of the wireless earphone body 11 as an auxiliary microphone, and sets the second microphone 123 of the wired earphone 12 as a main microphone;
and the audio signal processing unit is used for superposing the voice signal picked up by the main microphone and the noise signal picked up by the auxiliary microphone and filtering the noise signal in the voice signal. Because the second microphone 123 on the wired earphone 12 is closer to the mouth of the user, the voice of the user can be better received, and the position of the microphone on the wired earphone 12 can be adjusted according to the use requirement in the use process, so that the conversation is clearer. Therefore, in the technical scheme, the second microphone on the wired earphone is set as the main microphone and used for picking up the call voice signal, and the first microphone on the wireless earphone main body is set as the auxiliary microphone and used for picking up the background noise of the call environment, so that the noise in the voice signal is filtered, and the call quality is further improved; according to the technical scheme, when the wired earphone is not provided with the microphone, the first microphone on the wireless earphone main body is utilized to realize communication, so that a user can select a proper communication mode according to different wired earphones, and the use experience of the user is further improved.
The detachable wireless headset system in the above technical solution certainly further includes a crystal oscillator for providing a clock signal for the system, a battery for providing energy for the system, and a memory for storing various configuration information and other data.
The detachable wireless headset system in the above technical solution may further include a motion detection unit for detecting the amount of motion. The motion detection unit is generally formed of various types of sensors, such as an acceleration sensor for implementing a step-counting function.
The detachable wireless headset system in the above technical solution may further include a headset amplifier, and the headset amplifier is connected to the main controller 110 and is used for switching audio signals. That is, if the audio signal output by the main controller 110 is a differential signal, the headphone amplifier can convert the differential signal into a single-ended output signal.
In an embodiment of the present invention, a detachable bluetooth headset system is provided, which can be used in cooperation with a mobile device such as a mobile phone, and comprises a bluetooth headset main body and a wired headset, wherein the bluetooth headset main body and the wired headset main body communicate with each other through a 3.5mm audio interface.
The detachable bluetooth headset system of this embodiment is convenient for detach structurally, and convenience of customers split is carried.
The working principle of the detachable bluetooth headset system of this embodiment is: the Bluetooth module of the Bluetooth earphone main body can transmit communication signals between a system and a mobile phone, and after receiving audio signals from the mobile phone, the Bluetooth module transmits the audio signals to the left loudspeaker and the right loudspeaker of the wired earphone through the 3.5mm audio interface to make sounds; after receiving the voice signal, a microphone of the wired earphone is transmitted into the Bluetooth earphone main body through a 3.5mm audio interface, the voice signal is superposed with a noise signal from an auxiliary microphone in the main body, and the voice signal subjected to noise reduction processing is sent to the mobile phone through the Bluetooth module to realize a conversation function; and when the wired earphone does not comprise a microphone, the first microphone on the Bluetooth earphone main body is used for realizing the conversation function.
Fig. 2 is a schematic circuit diagram of a bluetooth headset main body according to an embodiment of the present invention, where the bluetooth headset main body includes a main controller 200, an audio jack 201, a bluetooth module 202, and a first audio switch 203, a second audio switch 204, a first microphone 205, a headset amplifier 206, a control button 207, an LED lamp 208, a memory 209, a crystal oscillator 210, a battery 211, a motion detection unit 212, and a filter 213, which are respectively connected to the main controller.
The main controller 200 is a central control unit of the system and is used for coordinating the orderly operation of all parts; in this embodiment, the main controller 200 further embeds an audio signal processing unit therein, which is used for performing noise reduction processing on the voice signal picked up by the wired headset. Meanwhile, the main controller 200 may also detect whether the wired headset is plugged into an audio jack through its plug-in detection GPIO (General Purpose input/output) port.
Fig. 2 schematically shows MIC signal terminals 1 and GND signal terminals 2 of the audio plug interface of the wired headset, and two sets of MIC signal terminals a and c, GND signal terminals b and d of the audio jack 201, signal terminals corresponding to Left Speaker and Right Speaker of the audio plug interface, and signal terminals corresponding to Left Speaker and Right Speaker of the audio jack 201, which are not shown in fig. 2.
In this embodiment, the main controller 200 initially (i.e. the wired headset is not plugged in) sets the first audio switch 203 and the second audio switch 204 to the first switch states shown in fig. 2, and changes the switch states of the first audio switch 203 and the second audio switch 204 according to the received corresponding control instruction after the wired headset is plugged in. Wherein the first switch states of the first audio frequency switch 203 and the second audio frequency switch 204 are: the first audio change-over switch 203 enables the MIC signal end a of the audio socket 201 to be communicated with the MIC signal end 1 of the audio plug, enables the GND signal end c of the audio socket 201 to be communicated with the GND end 2 of the audio plug, and enables the MIC signal ends a and c of the audio socket 201 to be disconnected with the ground through the second audio change-over switch 204;
the second switching state of the first audio switch 203 is: the first audio switch 203 connects the GND signal terminal d of the audio jack 201 with the MIC signal terminal 1 of the audio plug, and connects the GND signal terminal b of the audio jack 201 with the GND terminal 2 of the audio plug, and at this time, the second audio switch 204 maintains the first switch state;
the third switch state of the second audio switch 204 is: the second audio switch 204 connects the MIC signal terminals a and c of the audio jack 201 to ground, and the first audio switch 203 may maintain the second switch state or reset, i.e., connect any two of the signal terminals a, b, c, and c.
In this embodiment, when the control button 207 is operated by a predetermined action, a control command is sent to the main controller 200, the main controller 200 converts the corresponding control command into a high level signal and a low level signal, and the high level signal and the low level signal control the first audio switch 203 and the second audio switch 204 to be in a predetermined on-off state. The high and low level signals are transmitted to the first audio frequency switch 203 and the second audio frequency switch 204 through the GPIO ports.
When the audio plug of the wired headset body is inserted into the audio jack 201 of the bluetooth headset body,
the main controller 200 turns off the first microphone 205 of the bluetooth headset main body, performs an echo test, and if an echo is heard, it indicates that the current first switch state of the first audio switch 203 and the second audio switch 204 is present, and can make the interface line sequence of the audio jack 201 conform to the interface line sequence of the audio plug of the wired headset, and then it can be determined that the wired headset uses the audio plug of the first interface line sequence, and the interface line sequence of the wired headset is Left Speaker, Right Speaker, MIC, and GND, and at the same time, turns on the microphone 205 of the bluetooth headset main body, sets the first microphone 205 as an auxiliary microphone, and sets the microphone of the wired headset as a main microphone;
if the echo cannot be heard, by pressing the control key 207 for a long time (for example, pressing the up sub key of the 3s control key 207 for a long time, the up sub key can multiplex the "volume plus" key of the bluetooth headset, that is, the volume up key), the main controller 200 detects a control signal through its IO (input/output) port, controls the on/off state of the first audio switch 203 to be the second on/off state, and performs the echo test again, if the echo is heard, it indicates the current on/off states of the first audio switch 203 and the second audio switch 204, and can make the interface line sequence of the audio jack 201 conform to the interface line sequence of the audio plug, and then it can be determined that the wired headset uses the audio plug of the second interface line sequence, and the interface line sequences of the wired headset are Left Speaker, Right Speaker, GND, MIC, and simultaneously turn on the microphone 205 of the bluetooth headset main body, setting the first microphone 205 as an auxiliary microphone and the microphone of the wired headset as a main microphone;
if the echo cannot be heard, by pressing the control key 207 for a long time (for example, pressing the down sub-key of the 3s control key 207 for a long time, the down sub-key may multiplex a "volume-" key of the bluetooth headset, that is, a volume down key), the main controller 200 detects a control signal through its IO port, controls the on/off state of the second audio switch 204 to be the third on/off state, and continues to perform the echo test, and if the echo is heard, it indicates the current on/off states of the first audio switch 203 and the second audio switch 204, and can make the interface line sequence of the audio jack 201 conform to the interface line sequence of the audio plug, and then it can be determined that the wired headset uses the audio plug of the third interface line sequence, and the interface line sequence of the wired headset is Left Speaker, Right Speaker, and GND, and simultaneously, the first microphone 205 of the bluetooth headset main body is turned on.
If the echo can not be heard, the wired earphone is judged to be abnormal.
When the interface line sequence of the audio socket 201 of the main controller 200 is switched to be consistent with the interface line sequence of the audio plug of the wired headset, the main controller 200 filters the audio signal of the mobile phone received by the bluetooth module 202 through the filter 213, converts the differential signal into a single-ended output signal through the headset amplifier 206, and transmits the single-ended output signal to the left loudspeaker and the right loudspeaker of the wired headset through the audio socket 201 for playing, a user replies to the microphone in the wired headset according to the received message, the microphone of the headset transmits the picked voice signal to the audio signal processing unit of the main controller 200 through the audio interface of the audio plug and the audio socket 201, and the audio signal processing unit performs noise reduction on the voice signal and then transmits the voice signal to the mobile phone through the bluetooth module 202 to realize the function of noise reduction and conversation.
In the above embodiment, the audio jack 201 of the bluetooth headset main body can be switched between the three interface line sequences. In other embodiments of the present invention, it may also be configured that the audio jack 201 can only switch between two interface line sequences, for example, only switch between the first interface line sequence and the second interface line sequence, or only switch between the first interface line sequence and the third interface line sequence, or only switch between the second interface line sequence and the third interface line sequence.
For example, the embodiment of the present invention may implement that the interface line sequence of the audio jack 201 is switched only between the first interface line sequence and the second interface line sequence by the following schemes, including:
closing the first microphone 205 of the bluetooth headset main body, performing echo test, if the echo is heard, determining that the wired headset uses the audio plug of the first interface line sequence, wherein the interface line sequence of the wired headset is Left Speaker, RightSpeaker, MIC and GND, and opening the first microphone 205 of the bluetooth headset main body;
if the echo is not heard, setting the switch state of the first audio change-over switch to be a second switch state, performing echo test again, if the echo is heard, judging that the wired earphone uses an audio plug of a second interface line sequence, wherein the interface line sequence of the wired earphone is Left Speaker, Right Speaker, GND and MIC, and turning on a first microphone 205 of the Bluetooth earphone body;
and if the echo is not heard yet, the wired earphone is judged to use a third interface line sequence, namely the interface line sequence of the wired earphone is Left Speaker, Right Speaker and GND.
For another example, in the embodiment of the present invention, the interface line sequence of the audio jack 201 can be switched only between the first interface line sequence and the third interface line sequence by using the following scheme, where the interface line sequence of the audio jack 201 is the first interface line sequence, and the switching specifically includes:
closing the first microphone 205 of the bluetooth headset main body, performing echo test, if the echo is heard, determining that the wired headset uses the audio plug of the first interface line sequence, wherein the interface line sequence of the wired headset is Left Speaker, RightSpeaker, MIC and GND, and opening the first microphone 205 of the bluetooth headset main body;
if the echo is not heard, setting the switch state of the second audio change-over switch to be a third switch state, continuing to perform echo test, if the echo is heard, judging that the wired earphone uses an audio plug of a third interface line sequence, wherein the interface line sequence of the wired earphone is Left Speaker, Right Speaker and GND, and turning on a first microphone 205 of the Bluetooth earphone body;
and if the echo is not heard, judging that the wired earphone uses the audio plug of the second interface line sequence, namely the interface line sequence of the wired earphone is Left Speaker, Right Speaker, GND and MIC.
Similarly, the interface line sequence of the audio jack 201 is only switched between the second interface line sequence and the third interface line sequence, and at this time, the interface line sequence of the audio jack 201 is the second interface line sequence, and the switching specifically includes:
closing the first microphone 205 of the bluetooth headset main body, performing echo test, if the echo is heard, determining that the wired headset uses the audio plug of the second interface line sequence, wherein the interface line sequence of the wired headset is Left Speaker, RightSpeaker, GND and MIC, and opening the first microphone 205 of the bluetooth headset main body;
if the echo is not heard, setting the switch state of the second audio change-over switch to be a third switch state, continuing to perform echo test, if the echo is heard, judging that the wired earphone uses an audio plug of a third interface line sequence, wherein the interface line sequence of the wired earphone is Left Speaker, Right Speaker and GND, and turning on a first microphone 205 of the Bluetooth earphone body;
if no echo is heard, the wired earphone is judged to use the audio plug of the first interface line sequence, namely the interface line sequence of the wired earphone is Left Speaker, Right Speaker, MIC and GND.
In summary, the embodiment of the present invention discloses a detachable wireless headset system, in which an audio switching unit is added to a main body of a wireless headset to switch an interface line sequence of an audio socket, so that the interface line sequence of the audio socket of the main body of the wireless headset is consistent with the interface line sequence of an audio plug of a wired headset, thereby achieving the purpose of matching with wired headsets with 3.5mm audio interfaces in most markets. In a preferred embodiment, a microphone of the wired headset is set as a main microphone, a microphone of the wireless headset main body is set as an auxiliary microphone, and a noise signal picked up by the auxiliary microphone is superposed with a voice signal picked up by the main microphone, so that noise of the voice signal is filtered, and the communication quality between the system and the mobile device is improved.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A detachable wireless earphone system comprises a wireless earphone main body and a wired earphone, wherein the wireless earphone main body comprises a main controller, a wireless transceiver module, a first microphone and an audio socket, wherein the wireless transceiver module, the first microphone and the audio socket are respectively connected with the main controller; the wired earphone part comprises an audio plug and a loudspeaker; when in use, the audio plug of the wired earphone is inserted into the audio socket of the wireless earphone body; it is characterized in that the wireless earphone body also comprises an audio switching unit connected with the main controller,
the audio switching unit is used for switching an interface line sequence of the audio socket;
the main controller is used for judging whether the interface line sequence of the audio plug is consistent with the interface line sequence of the audio socket when the audio plug of the wired earphone is inserted into the audio socket; when the interface line sequences are not consistent, controlling the audio switching unit to switch the interface line sequence of the audio socket to be consistent with the interface line sequence of the audio plug;
the audio switching unit comprises a first audio switching switch and a second audio switching switch;
the first audio frequency switch is used for switching the interface line sequence of the audio frequency socket to be consistent with the interface line sequence of the audio frequency plug of the wired earphone with the microphone;
the second audio frequency switch is used for switching the interface line sequence of the audio frequency socket to be consistent with the interface line sequence of the audio frequency plug of the wired earphone without the microphone; the main controller is further configured to set the switch states of the first audio frequency switch and the second audio frequency switch to first switch states, and after the audio plug of the wired headset is inserted, implement that the interface line sequence of the audio frequency socket is switched at least between the first interface line sequence and the second interface line sequence, or implement that the interface line sequence of the audio frequency socket is switched between the first interface line sequence or the second interface line sequence and the third interface line sequence; wherein,
the method for switching the interface line sequence of the audio socket between at least a first interface line sequence and a second interface line sequence comprises the following steps:
closing a first microphone of the wireless earphone main body, performing echo test, if echo is detected, judging that the wired earphone uses an audio plug of a first interface line sequence, and opening the first microphone of the wireless earphone main body;
if the echo is not detected, setting the switching state of the first audio frequency switch to be a second switching state, and carrying out echo test again, if the echo is detected, judging that the wired earphone uses an audio frequency plug of a second interface line sequence, and turning on a first microphone of the wireless earphone main body;
the method for switching the interface line sequence of the audio socket between the first interface line sequence or the second interface line sequence and the third interface line sequence comprises the following steps:
closing a first microphone of the wireless earphone main body, performing echo test, if echo is detected, judging that the wired earphone uses an audio plug consistent with an interface line sequence of an audio socket, and opening the first microphone of the wireless earphone main body;
if no echo is detected, setting the switching state of the second audio frequency switch to be a third switching state, continuing to perform echo test, and if the echo is detected, judging that the wired earphone uses an audio frequency plug of a third interface line sequence, and turning on a first microphone of the wireless earphone main body;
and if the echo is not detected, determining that the audio plug of the wired earphone uses an interface line sequence except the interface line sequence of the audio socket and the third interface line sequence.
2. The detachable wireless headset system of claim 1, wherein the interface lineorder of the audio jack is switchable between two or three of a first interface lineorder, a second interface lineorder, and a third interface lineorder; the first interface line sequence is a left sound channel L, a right sound channel R, a microphone MIC and a ground GND, the second interface line sequence is a left sound channel L, a right sound channel R, a ground GND and a microphone MIC, and the third interface line sequence is a left sound channel L, a right sound channel R and a ground GND.
3. The detachable wireless headset system of claim 1, wherein the interface lineup of the audio jack is switched between at least a first interface lineup and a second interface lineup, further comprising: at the time of the echo test being performed again,
if the echo is not detected yet, setting the switching state of the second audio frequency change-over switch to be a third switching state, continuing to perform echo test, and if the echo is detected, judging that the wired earphone uses an audio frequency plug of a third interface line sequence, and turning on a first microphone of the wireless earphone main body;
and if the echo is not detected, judging that the wired earphone is abnormal.
4. The detachable wireless headset system of claim 1, wherein the wireless headset body further comprises control buttons connected to the main controller,
the control key is used for sending a control instruction to the main controller when the control key is operated by a preset action, and controlling the main controller to set the first audio frequency change-over switch and/or the second audio frequency change-over switch to be in a preset switch state.
5. The removable wireless headset system of claim 4, wherein the main controller is further configured to,
and converting the received control instruction into high and low level signals, and controlling the switching state of the first audio frequency change-over switch and/or the second audio frequency change-over switch through the high level and low level signals.
6. The detachable wireless headset system of claim 1, wherein the first audio switch and/or the second audio switch is an integrated two-way single pole double throw audio switch chip;
or a separated integrated switch circuit built by a metal oxide semiconductor field effect transistor and a triode.
7. The detachable wireless headset system of any one of claims 1-6, wherein the wireless headset body further comprises an audio signal processing unit connected to the main controller;
if the wired earphone is provided with a second microphone, the main controller sets the first microphone of the wireless earphone main body as an auxiliary microphone and sets the second microphone of the wired earphone as a main microphone;
and the audio signal processing unit is used for superposing the voice signal picked up by the main microphone and the noise signal picked up by the auxiliary microphone and filtering the noise signal in the voice signal.
8. The detachable wireless headset system of claim 1, wherein the audio jack and the audio plug are 3.5mm interfaces.
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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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| CN201410785156.5A CN104581479B (en) | 2014-12-17 | 2014-12-17 | A kind of detachable wireless headphone system |
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| CN104581479A CN104581479A (en) | 2015-04-29 |
| CN104581479B true CN104581479B (en) | 2017-12-19 |
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| CN201410785156.5A Active CN104581479B (en) | 2014-12-17 | 2014-12-17 | A kind of detachable wireless headphone system |
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| KR20170018554A (en) * | 2015-08-10 | 2017-02-20 | 해보라 주식회사 | Sound filtering system |
| CN105578335A (en) | 2016-03-07 | 2016-05-11 | 青岛歌尔声学科技有限公司 | Double wireless earphones |
| CN106452514B (en) * | 2016-10-14 | 2019-04-12 | 歌尔科技有限公司 | A kind of bluetooth headset |
| CN110446131B (en) * | 2018-05-02 | 2021-05-18 | 歌尔股份有限公司 | Earphone adapter |
| CN109362012B (en) * | 2018-12-11 | 2021-11-05 | 深圳创维数字技术有限公司 | Wired/wireless signal transmission/conversion method, speaker, and storage medium |
| CN110650409B (en) * | 2019-10-30 | 2021-08-06 | 歌尔股份有限公司 | Communication method and device, headband equipment, wireless earphone and headphone system |
| CN110913296B (en) * | 2019-11-28 | 2021-06-25 | 歌尔科技有限公司 | Composite earphone |
| CN110996202B (en) * | 2019-11-28 | 2021-09-21 | 歌尔科技有限公司 | Composite earphone |
| CN110913297B (en) * | 2019-11-28 | 2021-06-15 | 歌尔科技有限公司 | Composite earphone |
| CN111526446B (en) * | 2020-04-29 | 2023-04-07 | 歌尔科技有限公司 | Wired earphone conversion device and audio equipment assembly |
| CN112086101A (en) * | 2020-08-19 | 2020-12-15 | 广州亚美智造科技有限公司 | Noise reduction circuit, voice recognition module and electronic equipment |
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