CN110996202B

CN110996202B - Composite earphone

Info

Publication number: CN110996202B
Application number: CN201911192974.3A
Authority: CN
Inventors: 王海勇
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2021-09-21
Anticipated expiration: 2039-11-28
Also published as: CN110996202A

Abstract

The invention discloses a composite earphone which comprises a wireless Bluetooth earphone and a head-mounted wired earphone, wherein the wireless Bluetooth earphone is detachably arranged on the head-mounted wired earphone. When taking off wireless bluetooth headset from the wired earphone of wear, but wireless bluetooth headset and the wired earphone of wear exclusive use, the TWS earphone of exclusive use has satisfied handy demand, and the wired earphone of wear of exclusive use has satisfied the demand of high audio and low time delay. When setting up wireless bluetooth headset on the wired earphone of wear-type, the wired earphone of wear-type has become wireless bluetooth headset, has satisfied the demand of portable and high audio simultaneously. The composite earphone has the functions of portability, high efficiency and low time delay, can meet the use effect requirements of users in various scenes, improves the user experience and reduces the cost; in addition, the headset wired earphone is simple in structure, does not comprise a high-cost voice decoder, and further reduces cost.

Description

Composite earphone

Technical Field

The invention relates to the technical field of earphones, in particular to a composite earphone.

Background

With the development of the earphone technology and the increase of user requirements, earphones are classified into various types, such as TWS (True Wireless Stereo) earphones, game earphones, wired earphones, and sports earphones. The user selects different earphones based on different requirements under different scenes, for example, the TWS earphone is selected for carrying outdoors, the game earphone or the wired earphone is selected for guaranteeing low delay during game, and the earphone with sound effect processing is selected when high sound effect is pursued. The existing earphones of various types do not have the functions at the same time, and various types of earphones are required to be arranged to meet the use requirements of various scenes, so that the cost is high.

Disclosure of Invention

The invention aims to provide a composite earphone which has the functions of portability, high efficiency and low time delay, can meet the use effect requirements of users in various scenes, improves the user experience and reduces the cost; in addition, the headset wired earphone is simple in structure, does not comprise a high-cost voice decoder, and further reduces cost.

In order to solve the technical problem, the invention provides a composite earphone, which comprises a head-wearing wired earphone and a TWS earphone detachably arranged on the head-wearing wired earphone; the TWS earphone comprises a Bluetooth voice decoding chip and a detection contact matched with the level contact, and the level of the detection contact is changed when the detection contact is contacted with the level contact;

the Bluetooth voice decoding chip is used for establishing audio transmission communication connection with an audio playing device and/or a voice collecting device corresponding to ears when detecting that the voltage of a detection contact of the Bluetooth voice decoding chip is changed in a contact manner; the voice collected by the voice collecting device connected with the voice collecting device is converted into digital quantity from analog quantity and then sent out through Bluetooth; and the audio received by the Bluetooth is converted into analog quantity by digital quantity and then played by an audio playing device connected with the Bluetooth.

Preferably, the wireless bluetooth headset is a TWS headset.

Preferably, when the voltage of the detection contact of the bluetooth voice decoding chip is detected to be changed in a contact manner, the bluetooth voice decoding chip is further used for disconnecting the bluetooth voice decoding chip from the audio playing device and the voice collecting device of the wireless bluetooth headset.

Preferably, a first switch is arranged on a communication line between the bluetooth voice decoding chip and the audio playing device of the wireless bluetooth headset, and a second switch is arranged on a communication line between the bluetooth voice decoding chip and the voice collecting device of the wireless bluetooth headset;

the disconnection self is connected with the audio playing device and the voice acquisition device of the wireless Bluetooth headset at the place, and the disconnection self comprises the following steps:

and controlling the first switch and the second switch to be switched off.

Preferably, the disconnection of self and the audio playback device and the voice acquisition device of the wireless bluetooth headset in which it is located includes:

the audio received by the Bluetooth is converted from digital quantity to analog quantity and is not played by an audio playing device of the wireless Bluetooth earphone;

and voice collected by the voice collection device of the wireless Bluetooth headset is not processed.

Preferably, be provided with the magnet on the wired earphone of wear-type, be provided with on the wireless bluetooth earphone with magnet matched with iron sheet or with the opposite magnetism of magnet adsorbs the piece.

Preferably, a buckle for fixing the wireless bluetooth headset is arranged on the wired headset.

Preferably, the wired headset further comprises a battery and a DC-DC conversion module connected to the battery;

the battery is used for supplying power to the wireless Bluetooth headset through the DC-DC conversion module when the wireless Bluetooth headset is arranged on the wired headset.

Preferably, the level contact is a ground contact;

one end of the detection contact is connected with a power supply through a pull-up resistor, and the other end of the detection contact is connected with the Bluetooth voice decoding chip.

Preferably, the headset wired earphone further comprises:

a switch module;

the first resistor is grounded at one end, and the other end of the first resistor is connected with the level contact through the switch module;

the second resistor is grounded at one end, and the other end of the second resistor is connected with the level contact through the switch module; the resistance value of the first resistor is different from that of the second resistor;

the button is connected with the control end of the switch module and used for controlling the switch module to act when a compound instruction is received, so that the first resistor is connected with the level contact and the second resistor is disconnected with the level contact; when an independent instruction is received, the switch module is controlled to act, so that the first resistor is disconnected from the level contact, and the second resistor is connected with the level contact;

the TWS headset further comprises: one end of the pull-up resistor is connected with a self power supply, and the other end of the pull-up resistor is connected with the detection contact;

when detecting that self detection contact takes place voltage contact and changes and establish audio transmission communication connection with audio playback device and/or the pronunciation collection device of corresponding ear, include:

when the voltage of the detection contact is detected to be changed into the composite voltage, audio transmission communication connection is established with an audio playing device and/or a voice collecting device of a corresponding ear;

wherein the composite voltage is the voltage of the detection contact when the detection contact is in contact with the level contact and the wired headset receives the composite command.

The invention provides a composite earphone which comprises a TWS earphone and a head-wearing wired earphone, wherein the TWS earphone is detachably arranged on the head-wearing wired earphone. When taking off TWS earphone from the wired earphone of wear-type, TWS earphone and the wired earphone of wear-type can the exclusive use, and the exclusive use TWS earphone has satisfied portable demand, and the exclusive use wired earphone of wear-type has satisfied the demand of high audio and low time delay. When setting up the TWS earphone on the wired earphone of wear-type, TWS earphone and the compound use of wired earphone of wear-type, wired earphone of wear-type has become wireless bluetooth headset, has satisfied the demand of portable and high audio simultaneously. Therefore, the composite earphone has the functions of portability, high efficiency and low time delay, can meet the use effect requirements of users in various scenes, improves the user experience and reduces the cost; in addition, the headset wired earphone is simple in structure, does not comprise a high-cost voice decoder, and further reduces cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a composite earphone provided in the present invention.

Detailed Description

The core of the invention is to provide a composite earphone which has the functions of portability, high sound efficiency and low time delay, can meet the use effect requirements of users in various scenes, improves the user experience and reduces the cost; in addition, the headset wired earphone is simple in structure, does not comprise a high-cost voice decoder, and further reduces cost.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In consideration of the fact that a plurality of earphones are usually and separately equipped for meeting the use effect requirements of users in various scenes in the prior art, the problems of inconvenience in carrying, common sound effect and high cost exist, and in the application, the problems are solved by combining a head-wearing wired earphone and a low-cost wireless Bluetooth earphone. In the present invention, the wireless bluetooth headset may select a single wireless bluetooth headset, or may select the currently hottest TWS headset, and the following description of the wireless bluetooth headset is described by taking the TWS headset as an example.

Specifically, referring to fig. 1, fig. 1 is a schematic structural diagram of a composite earphone provided in the present invention.

The compound earphone comprises a head-wearing wired earphone 1 and a TWS earphone 2 which is detachably arranged on the head-wearing wired earphone 1; the wired headset 1 comprises a level contact 14, an analog audio interface 12, an audio playing device 13 and a voice collecting device 11 which are connected with the analog audio interface 12, the TWS headset 2 comprises a Bluetooth voice decoding chip 21 and a detection contact 22 matched with the level contact 14, and the level of the detection contact 22 is changed when the detection contact is contacted with the level contact 14;

the Bluetooth voice decoding chip 21 is used for establishing audio transmission communication connection with the audio playing device 13 and/or the voice acquisition device 11 corresponding to ears when detecting that the voltage of the detection contact 22 of the Bluetooth voice decoding chip is changed in a contact manner; the voice collected by the voice collecting device 11 connected with the device is converted into digital quantity from analog quantity and then sent out through Bluetooth; the audio received by the bluetooth is converted from digital to analog and then played by the audio playing device 13 connected with the bluetooth.

The present embodiment provides a composite headphone including a wired headset 1 and a TWS headphone 2, the TWS headphone 2 being detachably disposed on the wired headset 1 (except for not being disposed in a sound cavity, the present application does not particularly limit the specific position thereof), specifically, a left headphone of the TWS headphone 2 is detachably disposed on a left headphone of the wired headset 1, and a right headphone of the TWS headphone 2 is detachably disposed on a right headphone of the wired headset 1. In practical applications, the user may choose whether to set the TWS headset 2 on the wired headset 1 according to a specific usage scenario.

It is understood that only one voice capture device 11 is typically included in the wired headset 1, the audio playback device 13 is included in each of the left headset (corresponding to H-L in fig. 1) and the right headset (corresponding to H-R in fig. 1), and the bluetooth voice decoding chip 21 is included in each of the left headset (corresponding to T-L in fig. 1) and the right headset (corresponding to T-R in fig. 1) of the TWS headset 2.

In the present application, the wired headset 1 is a low-cost wired headset 1, and in order to establish an audio transmission communication connection between the bluetooth voice decoding chip 21 and the wired headset 1, a level contact 14, that is, a contact for outputting a predetermined level (high level or low level), is selectively provided in the wired headset 1, instead of the high-cost voice decoding chip. It will be appreciated that the level is defined based on a comparison of a voltage, which is called high level when above a voltage reference value, and low level when below a voltage reference value, but which is also voltage in nature, so that when the level contact 14 is in contact with the detection contact 22 in the TWS headset 2, the voltage of the detection contact 22 will change in contact. When the level contact 14 is a high level contact, the contact may be connected to a power source (which may be converted by a battery 15 in the wired headset 1) in the wired headset 1. When the level contact 14 is a low level contact, the contact may be grounded.

It should be noted that the "occurrence of a voltage contact change" mentioned below refers to a change in the voltage of the detection contact 22 when the detection contact 22 comes into contact with the level contact 14, so as to distinguish a change in the voltage of the detection contact 22 when the detection contact 22 is separated from the level contact 14.

When the level contact 14 is in contact with the detection contact 22 in the TWS headset 2, the voltage of the detection contact 22 may be changed in contact to the same level as the level output from the level contact 14. For example, if the level of the detection contact 22 is originally low (specifically, the detection contact 22 may be grounded through a pull-down resistor), when the level contact 14 (which outputs high level) contacts the detection contact 22, the level of the detection contact 22 becomes high level, that is, the voltage of the detection contact 22 becomes high level and is correspondingly larger than the voltage reference value. For another example, if the level of the detection contact 22 is originally high (specifically, the detection contact 22 can be connected to the power supply by a pull-up resistor), when the level contact 14 (output low level) comes into contact with the detection contact 22, the level of the detection contact 22 becomes low, that is, the voltage of the detection contact 22 becomes a voltage lower than the voltage reference value corresponding to the low level. In summary, the bluetooth voice decoding chip 21 can determine whether the TWS headset 2 is disposed on the wired headset 1 by detecting whether the voltage of the contact 22 changes in a contact manner. The voltage of the detection contact 22 is not changed when the TWS earphone 2 is not set on the wired headset 1, and the voltage of the detection contact 22 is changed by contact when the TWS earphone 2 is set on the wired headset 1.

In addition, because no voice decoding chip with higher cost is arranged, the voice acquisition device 11 and the audio playing device 13 are both directly connected with the analog audio interface 12. Therefore, the head-wearing wired earphone 1 is simple in structure and reduces the cost of a compound earphone.

The following describes the combination of the TWS headset 2 and the wired headset 1:

1) when the TWS earphone 2 is removed from the wired headset 1

At this time, the TWS headset 2 can be used as a TWS headset alone, specifically, when receiving audio through its own bluetooth, the bluetooth voice decoding chip 21 converts the audio from digital to analog and plays it through its own audio playing device 13; when receiving the pronunciation that self pronunciation collection system gathered, convert pronunciation into the digital quantity and send away through self bluetooth by analog quantity.

In this case, the wired headset 1 can be used alone as a wired headset, and specifically, the audio playing device 13 can receive and play analog audio through the headset cord and the analog audio interface 12. When the voice is collected by the voice collecting device 11, the voice is directly sent through the audio interface and the earphone line. In this embodiment, the audio playing device 13 may be, but is not limited to, a speaker, and the voice collecting device 11 may be, but is not limited to, an MIC (microphone). The analog audio interface 12 may be, but is not limited to, a 3.5mm audio interface.

Therefore, in the mode, the TWS earphone 2 and the head-wearing wired earphone 1 are independent from each other and do not influence each other, and the TWS earphone 2 is a wireless earphone based on Bluetooth, so that the portable use requirement of a user is met. The sound cavity and the sound playing device (such as a loudspeaker) of the wired headset 1 are usually large, so that the use requirement of a user on high sound effect is met, the wired headset 1 carries out audio and voice transmission based on a headset wire, and the use requirement of the user on low delay is also met.

2) When the TWS earphone 2 is set on the headphone 1

The detection contact 22 of the bluetooth voice decoding chip 21 will contact with the level contact 14 and generate voltage contact change, and the bluetooth voice decoding chip 21 will establish audio transmission communication connection (corresponding to MIC-1 interface, SPK-1 interface, MIC-2 interface, and SPK-2 interface in fig. 1) with the audio playing device 13 and/or the voice collecting device 11 corresponding to ears when detecting that the own detection contact 22 generates voltage contact change. Taking the example that the voice collecting device 11 is disposed on the left earphone of the wired headset 1, the bluetooth voice decoding chip 21 in the left earphone of the TWS earphone 2 establishes audio transmission communication connection with the audio playing device 13 of the left earphone of the wired headset 1 and the voice collecting device 11, and the bluetooth voice decoding chip 21 in the right earphone of the TWS earphone 2 establishes audio transmission communication connection with the audio playing device 13 of the right earphone of the wired headset 1. In the present application, the corresponding ear means that the left earphone of the TWS earphone 2 corresponds to the left earphone of the wired headset 1, and the right earphone of the TWS earphone 2 corresponds to the right earphone of the wired headset 1.

After audio communication connection is established, the voice acquisition device 11 can directly transmit the voice of analog quantity to the bluetooth voice decoding chip 21 connected with the bluetooth voice decoding chip when acquiring voice, and the bluetooth voice decoding chip 21 can convert the voice from analog quantity to digital quantity and send out through the bluetooth of the bluetooth when receiving the voice. When receiving the first audio through the bluetooth of the bluetooth decoder chip 21, the first audio is converted from digital to analog and then directly transmitted to the audio playing device 13 corresponding to the ear for playing.

In addition, it should be noted that, when the TWS headset 2 is disposed on the wired headset 1, the wired headset 1 may not be connected to the terminal, so as to avoid the influence of the wired mode on the combined use of the TWS headset 2 and the wired headset 1.

It can be seen that, when the TWS headset 2 is disposed on the wired headset 1, the wired headset 1 is equivalent to a wireless bluetooth headset, and the sound cavity and the sound playing device of the wired headset 1 are usually large, so that the wired headset 1 meets the user requirements of low latency and high sound effect.

In summary, when the TWS headset 2 is taken off from the wired headset 1, the TWS headset 2 and the wired headset 1 can be used independently, the TWS headset 2 used independently meets the requirement of portability, and the wired headset 1 used independently meets the requirements of high sound effect and low time delay. When setting up TWS earphone 2 on wired earphone of wear 1, TWS earphone 2 and wired earphone of wear 1 combined use, wired earphone of wear 1 has become wireless bluetooth headset, has satisfied the demand of portable and high audio simultaneously. Therefore, the composite earphone has the functions of portability, high efficiency and low time delay, can meet the use effect requirements of users in various scenes, improves the user experience and reduces the cost; in addition, the structure of the head-mounted wired earphone 1 is simple, and a voice decoder with high cost is not included, so that the cost is further reduced.

On the basis of the above-described embodiment:

as a preferred embodiment, when detecting that the voltage of the detection contact 22 of the bluetooth voice decoding chip has a contact change, the bluetooth voice decoding chip 21 is further configured to disconnect the bluetooth voice decoding chip from the audio playing device and the voice collecting device of the TWS headset 2.

It is considered that the user is to use the TWS headset 2 in combination with the wired headset 1 when the detection contact 22 of the user is detected to be in contact with the level contact 14 of the corresponding ear, that is, the user wants to play audio through the wired headset 1 and to capture voice through the voice capturing device 11 of the wired headset 1. Although the TWS headset 2 can play and transmit audio, it is considered that the TWS headset 2 installed on the wired headset 1 is usually far from the mouth and ear of the user, and therefore, it is almost assumed that the TWS headset 2 cannot collect the voice of the user and the user cannot hear the played audio, and although the influence on the user using the wired headset 1 is not large, the TWS headset 2 is burdened (the work of the TWS headset 2 is still responsible for the bluetooth relay task of the wired headset 1), and the power consumption of the TWS headset 2 is increased.

In view of the above technical problem, in this embodiment, when the detection contact 22 of the bluetooth decoding chip detects that the bluetooth decoding chip is in contact with the level contact 14 of the corresponding ear, the bluetooth decoding chip disconnects the bluetooth decoding chip from the audio playing device and the voice collecting device of the TWS headset 2, and switches to establish an audio transmission communication connection with the audio playing device 13 and/or the voice collecting device 11 of the corresponding ear. It can be seen that in this way, on the one hand, the influence on the wired headset 1 is avoided, and on the other hand, the burden on the TWS headset 2 is reduced, and the power consumption of the TWS headset 2 is reduced.

Furthermore, the disconnection here may be realized by hardware.

As a preferred embodiment, a first switch is disposed on a communication line between the bluetooth voice decoding chip 21 and the audio playing device of the TWS headset 2, and a second switch is disposed on a communication line between the bluetooth voice decoding chip 21 and the voice collecting device of the TWS headset 2;

the disconnection self and the audio playback device and the pronunciation collection system's of the TWS earphone 2 connection of place include:

and controlling the first switch and the second switch to be switched off.

When the TWS headset 2 is used alone, that is, when the TWS headset 2 detects that the level of the detection contact 22 of the TWS headset 2 is normal, the bluetooth voice decoding chip 21 controls the first switch and the second switch to be closed at this time; when the voltage contact change of the detection contact 22 is detected, the first switch and the second switch are controlled to be disconnected, so that the connection between the Bluetooth voice decoding chip 21 and the audio playing device and the voice collecting device of the TWS earphone 2 is disconnected. The control mode is simple and reliable.

Of course, the connection between the bluetooth voice decoding chip 21 and the audio playing device and the voice collecting device of the TWS headset 2 may also be disconnected in a software manner.

As a preferred embodiment, the disconnecting of the connection between the TWS headset 2 and the audio playing device and the voice capturing device includes:

the audio received by the Bluetooth is converted from digital quantity to analog quantity and is not played by the audio playing device of the TWS earphone 2;

and the voice collected by the voice collecting device of the TWS earphone 2 is not processed.

In this embodiment, the bluetooth voice decoding chip 21 disconnects itself from the audio playing device and the voice collecting device of the TWS headset 2 in a software manner, and when receiving the audio, it only transmits the audio to the audio playing device 13 connected to itself in the wired headset 1, but does not transmit the audio to the audio playing device of the TWS headset 2 in which it is located. In addition, the audio collected by the voice collecting device of the TWS earphone 2 is not processed. Through the software mode, other devices do not need to be additionally arranged in the TWS earphone 2, the cost of the composite earphone is further reduced, and the occupation of the space of the TWS earphone 2 is reduced.

As a preferred embodiment, the wired headset 1 is provided with a magnet, and the TWS headset 2 is provided with an iron piece fitted with the magnet or a magnetic adsorption member having a magnetic opposite to the magnet.

Specifically, the TWS headphone 2 is detachably disposed on the wired headset 1, and usually, a groove is disposed on the wired headset 1 for placing the TWS headphone 2, although the groove may have a certain fixing effect on the TWS headphone 2, when the wired headset 1 acts, the TWS headphone 2 still falls out of the wired headset 1, and the reliability is low.

In this embodiment, considering that the magnet has an attraction effect, the space of the wired headset 1 is large, and the space of the TWS headset 2 is small, so that the magnet is disposed on the wired headset 1, the iron sheet which is matched with the magnet and has a small size is disposed on the TWS headset 2, and the TWS headset 2 and the wired headset 1 are fixed by the attraction force of the magnet and the iron sheet, so that the TWS headset 2 is stably and reliably placed in the wired headset 1. In other embodiments, the TWS headset 2 may also be provided with a magnetic attraction member having a magnetic property opposite to that of the magnet, and the TWS headset 2 and the wired headset 1 are fixed by the attraction force of the magnet and the magnetic attraction member.

As a preferred embodiment, the wired headset 1 is provided with a clasp for fixing the TWS headset 2.

In this embodiment, the TWS headset 2 is fixed by means of a snap, and the stability and reliability are high. Of course, other ways to improve the fixing effect between the TWS headset 2 and the wired headset 1 may be adopted, and the application is not limited thereto.

As a preferred embodiment, the wired headset 1 further includes a battery 15 and a DC-DC conversion module 16 connected to the battery 15;

a battery 15 for supplying power to the TWS headset 2 through the DC-DC conversion module 16 when the TWS headset 2 is set on the wired headset 1.

Considering that the space of the wired headset 1 is large, the volume of the battery 15 in the wired headset is also large, the capacity of the battery 15 is also large, and the cruising ability is strong; in order to minimize the problem that the composite headset cannot be used due to insufficient electric quantity of the TWS headset 2, in this embodiment, when the TWS headset 2 is disposed on the wired headset 1, the battery 15 supplies power to the TWS headset 2 through the DC-DC conversion module 16, thereby ensuring normal use of the composite headset and improving reliability of the composite headset.

In addition, the DC-DC conversion module 16 is selected for voltage conversion in the application, and compared with a power management chip, the cost is lower. The battery 15 may be a rechargeable battery, and the wired headset 1 may further include a USB charging interface and a charging conversion module respectively connected to the USB charging interface and the rechargeable battery, so that the rechargeable battery can be charged through the USB charging interface and the charging conversion module.

As a preferred embodiment, the level contact 14 is a ground contact;

Specifically, the above-mentioned level contact 14 may be a ground contact, which may be realized by a contact ground, and accordingly, the detection contact 22 is connected to the power supply through a pull-up resistor, and when the TWS headset 2 is not installed on the wired headset 1, the bluetooth voice decoding chip 21 may detect that the voltage of the detection contact 22 is constant; when the TWS headset 2 is mounted on the wired headset 1, the bluetooth voice decoding chip 21 detects that the voltage of the detection contact 22 changes from high voltage to 0V, and a contact change occurs. It can be seen that, with this method, the implementation is simple, and the structure of the wired headset 1 is simplified. Of course, the level contact 14 may also be a high level contact, and the application is not limited thereto.

As a preferred embodiment, the headphone for wired communication 1 further includes:

a switch module;

a first resistor with one end grounded and the other end connected with the level contact 14 through the switch module;

a second resistor with one end grounded and the other end connected with the level contact 14 through the switch module; the resistance value of the first resistor is different from that of the second resistor;

the button is connected with the control end of the switch module and is used for controlling the switch module to act when a compound instruction is received, so that the first resistor is connected with the level contact 14 and the second resistor is disconnected with the level contact 14; when an independent instruction is received, the switch module is controlled to act, so that the first resistor is disconnected with the level contact 14, and the second resistor is connected with the level contact 14;

the TWS headset 2 further comprises: a pull-up resistor having one end connected to a self power supply and the other end connected to the detection contact 22;

when the voltage contact change of the detection contact 22 of the detection device is detected, the audio transmission communication connection is established with the audio playing device and/or the voice collecting device of the corresponding ear, and the audio transmission communication connection comprises the following steps:

when the voltage of the detection contact 22 is detected to be changed into the composite voltage, audio transmission communication connection is established with the audio playing device and/or the voice collecting device of the corresponding ear;

the composite voltage is the voltage of the detection contact 22 when the detection contact 22 is in contact with the level contact 14 and the headphone 1 receives the composite command.

In order to improve the user experience, unlike the above embodiment in which the TWS headset 2 and the wired headset 1 are used in combination when the TWS headset 2 is disposed on the wired headset 1, in this embodiment, the condition for using the TWS headset 2 and the wired headset 1 in combination includes that the TWS headset 2 is disposed on the wired headset 1 and that the user is triggered by a button.

It should be noted that the switch module is substantially a single-pole double-throw switch, which may be implemented based on a MOS (MOSFET, field effect transistor) transistor or other electronic devices, and the application is not particularly limited. In this embodiment, a switch module, a first resistor and a second resistor are further added between the level contact 14 and the ground, the button selects which resistor is connected with the level contact 14 by controlling the switch module, and since the resistance values of the first resistor and the second resistor are different, the voltage of the detection contact 22 (or the level contact 14) is also different when forming a loop (in this case, a voltage dividing circuit) with the pull-up resistor, and whether the TWS headset 2 and the wired headset 1 are to be used in a combined manner by a user can be determined by the difference of the voltage values. Wherein the button-pressed setting may indicate that the user wants to use the TWS headset 2 and the wired headset 1 in a composite manner, and the button-not-pressed setting indicates that the user sets the TWS headset 2 only on the wired headset 1 without composite use; of course, the above arrangement may be reversed, and the present application is not limited thereto. It can be seen that in the present embodiment, the level contact 14 is changed into a voltage contact accordingly, and the electrical signal is changed into a voltage.

Specifically, taking as an example that the set button is pressed, it indicates that the user wants to use the TWS headset 2 and the wired headset 1 in combination, the power supply of the TWS headset 2 is V, the resistance value of the first resistor is R1, the resistance value of the second resistor is R2, and the pull-up resistor is R3:

when the TWS headset 2 is set on the wired headset 1 and the user presses the button (which is not in place at this time), i.e. the button receives the compound command, the control switch module acts to select the first resistor to be connected to the level contact 14, and the second resistor is disconnected from the level contact 14. At this time, the voltage of the detection contact 22 changes from V to V

The Bluetooth voice decoding chip establishes audio transmission communication connection with the audio playing device and/or the voice collecting device corresponding to the ear.

When the TWS headset 2 is set on the wired headset 1 but the user does not press the button (which is now in place), the control switch module selects the second resistor to be connected to the level contact 14, and the first resistor is disconnected from the level contact 14. At this time, the voltage of the detection contact 22 changes from V to V

The bluetooth voice decoding chip does not establish audio transmission communication connection with the audio playing device and/or the voice collecting device of the corresponding ear.

Therefore, through the mode, a user can select whether to perform the composite use of the TWS earphone 2 and the wired headset 1, the user experience is improved, and compared with the mode that the switching is realized through a high-cost voice decoding chip in the prior art, the method and the device are realized through a low-cost resistor, and the cost is further reduced.

In addition, the detection contact 22 in the TWS headset 2 may be grounded through a pull-down resistor, one end of each of the first resistor and the second resistor in the wired headset 1 is connected to a power supply, and the other end of each of the first resistor and the second resistor is optionally connected to the level contact 14 through a switch module (which is a single-pole double-throw switch in nature).

It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The composite earphone is characterized by comprising a wired headset and a wireless Bluetooth earphone detachably arranged on the wired headset; the wireless Bluetooth headset comprises a Bluetooth voice decoding chip and a detection contact matched with the level contact, wherein the detection contact changes the voltage when contacting with the level contact;

the Bluetooth voice decoding chip is used for establishing audio transmission communication connection with an audio playing device and/or a voice collecting device corresponding to ears when detecting that the voltage of a detection contact of the Bluetooth voice decoding chip is changed in a contact manner; the voice collected by the voice collecting device connected with the voice collecting device is converted into digital quantity from analog quantity and then sent out through Bluetooth; the audio received by the Bluetooth is converted from digital quantity to analog quantity and then played by an audio playing device connected with the Bluetooth;

when the voltage of the detection contact of the Bluetooth voice decoding chip is detected to be changed in a contact manner, the Bluetooth voice decoding chip is also used for disconnecting the Bluetooth voice decoding chip from the audio playing device and the voice acquisition device of the wireless Bluetooth headset;

2. The composite headset of claim 1, wherein the wireless bluetooth headset is a TWS headset.

3. The composite earphone according to claim 1, wherein a magnet is provided on the wired headset, and an iron plate fitted with the magnet or a magnetic adsorption member having a magnetic property opposite to that of the magnet is provided on the wireless Bluetooth headset.

4. The composite earphone according to claim 1, wherein the wired headset is provided with a buckle for fixing the wireless Bluetooth earphone.

5. The compound earphone according to claim 1, wherein the wired headset further comprises a battery and a DC-DC conversion module connected to the battery;

6. The composite headset of any one of claims 1 to 5, wherein the level contact is a ground contact;

7. The compound headset of claim 6, wherein the wired headset further comprises:

a switch module;