CN110830973B

CN110830973B - Method for transmitting audio information by using wireless earphone

Info

Publication number: CN110830973B
Application number: CN202010019802.2A
Authority: CN
Inventors: 邹静
Original assignee: Easy Zhaowei Electronics (hangzhou) Co Ltd
Current assignee: Yizhao micro electronics (Hangzhou) Co., Ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-03-31
Anticipated expiration: 2040-01-09
Also published as: CN110830973A

Abstract

A method of transmitting audio information using wireless headphones, comprising: performing communication verification with the earpiece portion over the first data network via the one or more wireless interfaces of the first audio device; determining the communication verification to create a registration of the earpiece portion on the first audio device and generate a connection identification; and setting the earphone part to be connected with a second priority through a second data network when the first data network is disconnected through the connection switching device, and executing voice data transmission to the wireless earphone through the second data network according to the connection identification, wherein the earphone part is switched from the first data network to the second data network so as to execute the second priority connection through the second data network without interrupting audio data transmission with the wireless earphone.

Description

Method for transmitting audio information by using wireless earphone

Technical Field

The present invention relates generally to improving the bidirectional communication efficiency of an in-ear wireless headset device having a bluetooth communication function.

Background

With the continuous development of audio signal modulation technologies such as voice and stereo, audio equipment is designed to be lighter and more convenient to wear, and with the continuous development of wireless technologies, the original cable transmission mode is gradually replaced by wireless earphones. But with the problem that users tend to use more portable headset devices to obtain speech content and can accompany the user with the movement of the user at any time, and with the continuous maturity of real wireless stereo (TWS) technology, the use experience of headset devices can be nearly the same as that of fixed-position audio devices. Due to the continuous development of bluetooth wireless technology, the design of the headset supporting the bluetooth protocol (such as an in-ear headset) is more compact and lighter, so that the power supply volume of the bluetooth headset is correspondingly reduced. Currently, the monitoring method adopted by such bluetooth headsets is mainly characterized in that after the external audio device performs bluetooth pairing with paired headset devices (assumed as headset devices a and B), a bluetooth connection can be established between the audio device and the headset device a, and the headset device B keeps synchronizing with a clock of the bluetooth connection established by the headset device a and continuously monitors data transmission from the headset device a.

In this case, in order to maintain the integrity of the data received by the headset B, the prior art would feed back an acknowledgement ACK1 to the headset a after each time the headset B listens to a data packet to inform the headset a that the headset B has correctly received the data. And, earphone device a can send another acknowledgement information ACK2 to the sound source after receiving acknowledgement information ACK1 of earphone device B, otherwise only can return non-acknowledgement information or failure information. In order to synchronize multimedia data information (e.g., volume, power off/pause or receiving voice call), the headset device a and the headset device B add a wireless connection link again based on the existing implementation, for example, based on the BT3.0 or BLE connection protocol.

According to the above mode, the prior art has the following defects: (1) two wireless connection links are required to be simultaneously maintained between the earphone device a and the earphone device B in order to maintain communication, wherein one of the two wireless connection links is a bidirectional connection link for performing the confirmation and feedback between the earphone devices a and B, and the other one is a unidirectional bluetooth connection from the earphone device a to the earphone device B, so that the system resource consumption of a Microprocessor (MCU) built in the bluetooth earphone device is increased, and meanwhile, the radio frequency RF communication power consumption of the whole earphone system is remarkably increased. In most cases, this can be achieved by adding a cable between the headset devices a and B to provide audio transmission or an additional rechargeable power source.

In addition, the existing bluetooth headset products generally support a mode that a pair of headset devices is connected with two sound sources at the same time, and after a real wireless stereo function is added to the headset devices, the bluetooth headset devices cannot be connected with a second audio device after being connected with an audio device supporting a TWS function, because one wireless connection link is occupied.

Disclosure of Invention

Embodiments of the present invention are directed to providing a method for receiving voice data content instantly when such a wireless headset is in use, which allows a user to receive and/or transmit voice information in real time while wearing the wireless headset and walking freely without suffering from problems such as detuning due to limitations in the effective distance of data network signals, or interruptions in voice data transmission due to the presence of peer-to-peer audio devices. The method of the invention may comprise: performing communication authentication with a wireless headset via a first data network via one or more wireless interfaces of a first audio device, wherein the first audio device is in turn connectable via the wireless interfaces to second and third data networks, the first, second and third networks being provided independently of each other; determining the communication verification to create a registration of the wireless headset on a first audio device and generate a connection identification, wherein the first audio device is configured to create a first priority connection for the wireless headset with the first audio device via a first data network during the performing of the communication verification; and setting the wireless headset to be connected with the second data network through the second data network when the first data network connection is disconnected through the connection switching device, and executing voice data transmission on the wireless headset through the second data network according to the connection identification, wherein the wireless headset is switched from the first data network to the second data network so as to execute the second priority connection through the second data network without interrupting the voice data transmission with the wireless headset.

In one embodiment, the method further comprises: and connecting the second audio equipment through the third data network under the condition that the second priority connection is determined by the connection switching device so as to continuously transmit the voice data to the second audio equipment, wherein when the voice data is switched to be transmitted from the second data network to the third data network, the transmission of the rest part of the voice data content after the switching is performed on the second audio equipment.

Further, the method further comprises: and associating the connection identifier with the identity identifier of the first audio equipment so that the wireless headset can be connected and switched between the first data network and the second data network.

On the basis, in order to more conveniently upgrade, for example, a bluetooth headset product from an earlier version to a version supporting TWS functions, the inventor provides a bluetooth headset fast upgrade method supporting two-way communication, which comprises the following steps: placing a bluetooth headset in a wireless network environment, the bluetooth headset including left and right headphone parts, setting one of the headphone parts, in which a connection based on a first data network (e.g., bluetooth) is established with an audio device, as a resident device, setting the other headphone part as a follower device when the headphone part feeds back a connection flag indicating that the headphone part is synchronized with a clock of the established bluetooth connection, and generating an interface key in the headphone part indicating radio frequency communication between the other headphone part and the headphone part; the resident device sends multimedia data content to the following device according to the determined connection identifier and the kept clock; the resident device sends a control instruction for adjusting the multimedia data content to the following device according to the interface key under the condition of keeping sending the multimedia data content; and generating an upgrade request for the TWS function according to the adjustment, and determining to perform the upgrade according to the version index and the interface key stored by the audio device.

In a refinement, the method further comprises: and connecting the second audio equipment through the third data network under the condition that the second priority connection is determined by the connection switching device so as to continuously transmit the voice data to the second audio equipment, wherein when the voice data is switched to be transmitted from the second data network to the third data network, the transmission of the rest part of the voice data content after the switching is performed on the second audio equipment.

In a refinement of the above method, further comprising: the audio processing circuitry of the resident device is set to operate in a low power consumption mode in accordance with performing the upgrade and is only woken up when a next upgrade request is performed.

In some improvement aspects of the invention, the technical effects reflected are as follows: (1) when any earphone part is synchronized to the clock of the wireless connection, the clock synchronization is completed by using the clock information of the created wireless connection and the synchronization function of the audio data content package is completed by using the interface key. After the other earphone part is synchronously finished, the control commands to be transmitted are digital commands such as volume up/down, answering/hanging up, fast forwarding/rewinding and the like, the transmission content of the data packet can be transmitted and finished in one byte (byte), so that a new Bluetooth connection link is not required to be established for transmitting the commands, and the control commands can be transmitted only by adding an identification bit on the basis of the transmission commands contained in the original connection identification. (2) The upgrading of the TWS function can be realized without increasing system resources on the basis of the old Bluetooth version; (3) the actual communication power consumption of the wireless headset is reduced, the maximum data transmission amount between the two headset parts is only one identification bit added to an interface key, and in the prior art, the minimum length of one data packet is the data content length plus more than two bytes under the condition that another wireless connection link is established (such as the traditional Bluetooth BT3.0 or BLE protocol), and configuration time needs to be additionally allocated to enable the headset parts to maintain the Bluetooth connection, for example, so that the power consumption saving effect is remarkable.

Drawings

FIG. 1 schematically depicts a functional block diagram of the system of the present invention;

fig. 2 depicts an example of a wireless headset (400) and its adapted connection-switching accessory device, with some details omitted.

Detailed Description

Reference is now made to the drawings wherein like or similar reference numerals indicate functionally identical electronic components and/or assemblies. The technical term "wireless data network" referred to herein may include, for example, wireless data links provided by any entity router, gateway, etc. capable of wireless communication in a predetermined space. These entity gateways may also include, for example, community base stations, mobile network hotspots or data network controllers, etc.

From one general aspect, the present invention provides a method of communicating voice data between, for example, two or more different wireless data networks, in some embodiments, a user may have multiple audio devices, such as the

audio devices

100, 200 shown in fig. 1, while the wireless headset 400 is not defined herein as an audio device, as the headset does not have the same level of data computing power or interactive display functionality as a generic audio device, and sometimes the wireless headset 400 may also be used as an accessory to an audio device. The wireless headset 400 is capable of demodulating, for example, from a first data network (e.g., a bluetooth audio device) created by the first audio device 100 to sense channel broadcasts of other, possibly accessed, second data networks (4G-LTE radio service networks).

The first audio device 100 sets up to generate a headset detection event during the identification of a wireless headset 400 that may be present in the vicinity using a first data network (e.g., bluetooth) protocol. For example, the headset detect event can be used to indicate device attributes to the wireless headset 400 and to measure the communicable distance to the wireless headset, whether to resume voice data transmission with the wireless headset after a transmission interruption (such as offline), and the like. When the first audio device 100 is simultaneously receiving and transmitting data using the second data network, the first audio device 100 does not have any data reception on the link of the third data network (e.g. 4G-LTE, ZigBee or higher bluetooth networking network). The audio device 100 may switch to the third data network when the audio device 100 detects a connection to the first data network while the second data network remains as the second preferred connection. The audio device 100 may respond to the connection and disconnect the 4G-LTE network connection in case of a receiving network connection.

Fig. 1 shows an example of a voice information data transmission system in an indoor hybrid data network. Such an indoor hybrid network includes a first data network 10 for communicatively coupling the first audio device 100 and the TWS enabled wireless headset 400, and a second data network 20 for communicatively connecting the first audio device 100 with the indoor network switching apparatus 300. As shown in fig. 1, a third data network is further included for communicatively connecting the second audio device 200 and the network switching device 300, wherein the second and third data networks are asynchronous, for example, have different modulation frequencies and are independent of each other. In addition, the network switching device may be configured to make the second and third data invisible to the audio device to prevent the audio device from performing multiple selections for accessing the data network. For example, sometimes these data networks may not be synchronized with each other or may be selected as a data transmission channel to the wireless headset 400 during operation of the audio device.

The network switching device may include one or more Radio Frequency (RF) transceivers, one or more baseband processors coupled to the RF transceivers, and at least one signal processor coupled to the baseband processors and associated memory storing audio/video data. In some embodiments herein, the RF transceiver and the baseband processor are further dedicated to handling wireless transmission of a single audio channel or to wireless transmission timing of audio data common to multiple channels including the second, third or first data networks.

In an embodiment of the listed method steps of the invention, it comprises: s10, performing a bluetooth communication authentication with the wireless headset 400 via the first data network 10 via one or more wireless interfaces of the first audio device 100, wherein the first audio device 100 in turn may be connected via the wireless interface to second and third data networks, the first, second and third networks being arranged independently of each other. In one embodiment, the wireless headset portion 401 is identified by the connection switching device 300 as having a unique connection identifier in all wireless data networks through the connection detection event. For example, the serial number of the first audio device 100 over the bluetooth link identifying the headset portion 401 is an identification code that is unique to all audio devices in the current wireless data network. Alternatively, the headset portion 401 is identified as having a device identifier that is unique to at least one wireless data network. For example, the headset portion 401 is assigned a transient identifier when the first data network 10 is connected, which is not a unique identifier for other wireless data networks and can be reused, such as a network address identifier (SSID). This identifier is then written to the connection identification and transmitted to the connection switching apparatus 300.

S20, determining the communication verification to create a registration of the wireless headset 400 on the first audio device and generating a connection identifier, wherein the first audio device 100 is set to create a first priority connection with the first audio device 100 via the first data network 10 during the execution of the communication verification. When step S10 is executed, the connection switching apparatus 300 notifies, at the time of authentication of access to another wireless data network service, that another voice device to be connected has acquired the unique device identifier of the earphone section 401. On this basis, the headset portion 401, which has been authenticated by the system identification, may be used for process handling at different levels of authority in one or more other wireless data networks. Reference herein to "privilege level" is to refer to any number of different program processes (such as voice broadcast, music play, etc.), operations, or levels of authentication associated with audio devices mounted in a data network or configuration operations of the data network itself. The permission level may be based on conditions such as the necessity to maintain the headset portion 401 and/or any audio device in communication with the wireless data network, support periodic updates to voice services, and/or support the importance of a particular call.

In one embodiment, the connection switching apparatus 300 is further configured to set up voice data transmission for the first data network 10 and one or more other data networks based on the same timing. For example, the bluetooth network as the first data network and the WIFI network as the second data network may have modulation frequencies and transmission clocks different from each other, and the reference clocks of the two wireless data networks may be synchronized by the connection switching device 300 so as not to cause clock offset with each other when switching from bluetooth to WIFI channel to transmit voice data information. Thus, the transmission time as a WIFI channel is calculated as a function of the relationship of the transmission time as a bluetooth channel. In addition, the connection switching device 300 may also obtain the ac frequency (e.g., 50-70 Hz band) from the power line or transmit the first bluetooth broadcast from the wireless headset 400 as the reference clock.

On this basis, in the system of the present invention, one or more periods during which the first audio device 100 can be configured to execute an audio data processing procedure of lower authority level than the above-described first/second priority connection on the second data network (for example, WiFi) when the connection switching apparatus 300 recognizes the earphone portion 401 can be set based on the above-described reference clock. In addition, after the wireless headset 400 has been decoupled from the first data network 10 and accessed to the second data network 20, the first data network 10 may be used again to perform a process of a low authority level set corresponding to the authenticated headset part 401 during a predetermined period of time. In one embodiment, the earpiece portion 401 does not need to notify the first audio device 100 when it interacts with other audio devices in another data network after it is decoupled from the first data network 10. That is, the earphone portion 401 may be decoupled from the first data network to perform operations in one or more other wireless data networks and then may be reconnected to the first data network 10.

For example, the earphone portion 401 may access the WIFI network through the connection switching device 300, but after the user wears the earphone portion 401 out of the effective range allowed by the second data network 20, the earphone portion 401 may gradually fail to be connected to the audio device under the second data network, and when the first audio device 100 senses that the earphone portion 401 is close to the effective transmission distance again, the first audio device may return to the first priority connection operation, during which the earphone portion 401 may miss some of the above-mentioned low-privilege-level processing processes. In other embodiments, the voice data information received by the first audio device 100 may be transmitted to the second audio device 200 through the connection switching device 300, and if the headset 401 is in the same network link as the second audio device 200, the headset may respond directly to the connection of the second audio device 200 and notify the first audio device 100 to interrupt the first priority connection.

S30, setting the wireless headset 400 to be connected with the second data network 20 with the second priority when the first data network connection is disconnected through the connection switching device 300, and performing voice data transmission to the wireless headset through the second data network according to the connection identifier, wherein the wireless headset 400 is switched from the first data network to the second data network to perform the second priority connection through the second data network 20 without interrupting the voice data transmission to the wireless headset.

As an improvement, the above method further comprises: s40, connecting the second audio device 200 via the third data network to continuously transmit the voice data to the second audio device through the connection switching device 300 under the condition that the second priority connection is determined, wherein when the voice data is switched to be transmitted from the second data network to the third data network, the transmission of the rest of the voice data content after the switching is performed on the second audio device 200.

Further, the method further comprises: s41, associating the connection identifier with the identity identifier of the first audio device so that the wireless headset 400 can switch the connection between the first and second data networks.

In the above embodiment of the method steps, the preferred connection is mainly determined by the set permission level. For example, the predetermined period of time is to execute the data distribution mechanism for the first and second priority connections. One or more time periods required to be configured for the second priority connection may be determined under the first data network 10 based on the first priority connection of the first audio device 100. The connection switching device 300 switches to the WIFI clock period corresponding to the WIFI network of the second data network 20 based on the clock conversion mechanism of the first data network 10. Since the reference clocks of the first data network 10 and the second data network 20 are the same, the periods of WIFI and bluetooth do not shift from each other.

Under the first data network 10, the first audio device 100 performs one or more lower privilege level processing procedures for the headset portion 401 during the determined time period, and thus will be affected by little or no interruption when the wireless headset 400 re-uses the first data network 10 to establish a communicative coupling with the first audio device 100. For example, the connection switching apparatus 300 configures the measurement frequency for the first audio device 100 through the second data network 20 to reflect the bitrate quality of the audio transmission.

The first, second or possibly further audio devices mentioned above typically comprise a network interface for accessing a wireless data network (e.g. 4G-LTE, WiFi, ZigBee, bluetooth, etc.), a protocol processor, a protocol converter and a memory. The audio device may also have functions such as display, vibration and/or remote control in addition to the processed audio data content, and may be, for example, an electronic device such as a smartphone, camera, personal computer, etc.

The system of the present invention further comprises a processor coupled to the connection switching device 300. In various embodiments above, the processor may include one or more signal processing circuits. Further the processor may be coupled to the memory and/or the secure chip. The processor-borne voice data transmission system is typically implemented in a digital signal processor, a general purpose logic processor, a network processor/client, a Field Programmable Gate Array (FPGA), a Digital Signal Processor (DSP), and any combination thereof. Typical examples of the memory include Random Access Memory (RAM), dynamic/static RAM, Read Only Memory (ROM), flash memory, and a Hard Disk Drive (HDD), etc.

Fig. 2 more vividly depicts an example of a wireless headset 400 and its accessory device suitable for implementing the above listed methods, which may include

headset parts

401, 402 worn by the left and right ears of a user, the two headset parts having a structure at least partially symmetrical to each other, for example, the headset part 401 has a body in which a speaker 421, a

microphone

441, 442 and an audio processing circuit electrically coupled to the speaker and the microphone, a signal processing circuit electrically coupled to the audio circuit, a Radio Frequency (RF) transceiver for performing the coupling of the first, second or other audio devices on the first data network 10 and a baseband processor coupled to the RF transceiver for performing the communication coupling with, for example, the first audio device 100 through the RF transceiver are provided.

One external audio device 500 may transmit voice information to the first audio device 100 through a network mobile base station, where the network switching apparatus 300 has another baseband processor different from a network standard preset by the baseband processor of the first audio device 100, and is adapted to simultaneously modulate and connect with, for example, a 4G-LTE network and an internet of things (IoT) network. Such an exemplary baseband processor may be configured using cellular mobile network technologies, e.g., a combination of different network modalities including GSM, GPRS, EDGE, NB-IoT, LO-RA, etc. Further, such RF transceivers include multiple Receive (RXD)/Transmit (TXD) antenna assemblies to adapt the cellular mobile network.

For example, the baseband processor may receive voice data or voice-reflected control instructions with multiple-input/output (MIMO), single-input/output (SISO), and/or single-input/multiple-output (SIMO) antenna configurations that adapt the antenna assemblies. In one embodiment, the first audio device 100 and the network switching apparatus 300 may have baseband processors configured to perform different frequency band codecs so that different voice messages are received and demodulated by the corresponding indoor devices. In addition, the baseband processor is further configured to transmit voice data information to the wireless headset 400 through mixing processing or time-slot encoding to ensure voice quality and timing synchronization of, for example, left and right ear playback.

In the embodiments listed herein, any one or more of the baseband processors and their coupled antennas may be modulated by the signal processor in a relatively available low power consumption frequency band suitable for reception by the wireless headset 400. In one embodiment, data information for this low power band may be received by multiplexing the built-in antenna components of the wireless headset. As shown in fig. 2, the circuit structure of the wireless headset 400 (and its accessory device) may be used to couple the bluetooth baseband or NB-IoT baseband to the RF transceiver of the network switching device 300 or as a signal gain component connected to the RF transceiver.

In some implementations, the wireless headset 400 is an antenna assembly that couples the baseband processor to a headset portion 401 (e.g., a left headset) when connected to the network switch 300 via bluetooth, in which case the headset portion 401 is a point-to-point coupling connection with an RF transceiver coupled to the baseband processor, such that the headset portion 401 can perform decoupling with the first audio device 100 and create a bluetooth coupling with the network switch 300 when away from (e.g., beyond a radius of 5 m) the first audio device 100. In other implementations, the earphone part 401 may transmit a one-to-many broadcast after power is turned on, or perform a plurality of pairs of single connections in response to a plurality of indoor devices, etc., in which case the earphone part 401 performs a coupling connection with only one indoor device.

In the above listed implementation, the connection switching device 300 is further configured to perform network connection switching of the headset portion 401 in different data network connection ranges for the headset portion 401, wherein the connection switching is according to:

(1) estimation of power consumption of a wireless headset 400 (or an accessory device thereof), wherein during generation of a connection identifier by a first audio device 100, the first audio device 100 may obtain device information of the headset portion 401 via a first data network 10 to create a device registration of the headset portion 401 on the first audio device 100, wherein the device information includes an available power amount and an available play mode of the wireless headset 400, and upon sensing an interruption of the first data network 10 (such as a reason that the headset portion 401 exceeds an available effective bluetooth communication distance, a user closes a bluetooth connection, or a more preferred wireless network appears), the first audio device 100 transmits the connection identifier to a connection switching device 300 via a second data network to complete the device registration of the headset portion 401 on the connection switching device, for example.

(2) Data capacity and processing efficiency, e.g., decoding rate/decoding format, for received and decoded voice data.

(3) Transmission efficiency of the RF transceiver of the headset device. For example, the power level of the earphone portion 401 may be periodically evaluated after the connection switching device 300 registers the earphone portion 401 to send a prompt message, and in some embodiments, the volume of sound played by the earphone portion 401 is reduced or the transmitting frequency of the RF transceiver is limited to remain in a lower power consumption state when the power level is lower than a predetermined value.

Here, as long as the connection switching device 300 is in the continuous listening state, a verified constraint may be performed on the RF transceiver of the headset 401 to ensure that it is in a reasonable use state. For example, the connection switching device 300 continuously receives voice data for a preset time period without playing the voice data to the earphone portion 401 being worn by the user in real time, so as to maintain the earphone portion 401 in a reasonable power consumption state.

Due to the miniaturized design of the wireless headset, the headset battery becomes relatively compact and fast draining, and the necessary mechanical components, such as volume, playback and/or stop function keys, are omitted, typically certain parameters of the headset portion 401, such as the preset volume, may be automatically controlled by preset control logic stored in the connection switching device 300 when the headset portion 401 is manipulated for use. In another embodiment, the connection switching apparatus 300 provides only one RF antenna assembly to remain in bluetooth communication coupling with the earphone portion 401 at any one time, or may select among different wireless interfaces, such that only one wireless network interface is used for the earphone portion 401 at any one time.

In the above listed embodiment step S10, a method for rapidly upgrading the

earphone parts

401 and 402 supporting the two-way communication is provided, which includes the following steps:

s100, placing the earphone part 401 in a wireless network environment, setting one earphone part 401, which creates a connection identifier PICONET _1 based on Bluetooth with the audio equipment 100, as a resident device, setting the earphone part 402 as a follow-up device when the earphone part 402 feeds back a connection identifier which indicates that a clock matched with the earphone part 401 and the established connection identifier PICONET _1 keeps synchronous, and generating an interface key ACK _1 which indicates radio frequency communication between the earphone part 402 and the earphone part 401 in the earphone part 401;

s200, the resident device sends or receives audio (such as multimedia data and natural language sent by a user) content to the following device according to the determined connection identification and the maintained clock;

s300, the resident device sends a control instruction for adjusting the multimedia data content to the following device according to the interface key under the condition of keeping sending the audio content; and

s400, an upgrade request for the TWS function is generated according to the adjustment, and the upgrade is determined to be executed according to the version index stored by the audio equipment AR and the interface key.

In a refinement of the above method, such a resident device further comprises a removable accessory device. In one embodiment, each

earphone portion

401, 402 is further provided with an ear tag 411, 412 (or only either earphone portion is provided with an ear tag), the ear tag 411 being used to clamp the body of the earphone portion 401 in the ear canal of the user when worn by the user and thus having a curved shape adapted to the pinna of the user, such as the curved shape shown in fig. 2. In addition, the ear tag 411 is also configured with a sensing means for triggering the communication coupling when clipped in the ear canal when the user touches the body and presses the body in the direction of the inside of the ear canal. For example, the side of the body is provided with a touch control 431 for finger-pressure activation by the user.

In addition, as listed in the foregoing embodiments, the first audio apparatus 100 connects a voice call, for example, a remote voice call with the audio apparatus 500, during connection to the 4G-LTE network. Sometimes a voice call may contain a multimedia video mode, during which operation a user may enter voice data content through the second data network 20 via an identity card I101 (the identity card may be a physical card such as a SIM card or a virtual card such as a user account card registered using application firmware) set in a user's first audio device 100. At the same time, the first audio device 100 receives voice data and/or control instructions from, for example, a bearer in a 4G-LTE network. In this case, speech encoding is transmitted to the headphone section 401 through the first audio device 100 in the first data network 10, and decoding and playback are performed via the identification circuit of the headphone. In the embodiments listed herein, the connection switching apparatus 300 is configured to respond to two or more data networks simultaneously and maintain the voice call channel until the user may wear the wireless headset 400 away from the first audio device 100 to trigger the preferential connection logic.

Here, the process is repeated. The privilege level of the first priority connection is set higher than that of 4G-LTE data transmission to ensure that the user is not affected by interruption of the wireless headset 400 disconnecting the first data network 10 during the voice call. In other embodiments, the connection switching apparatus 300 may be further configured to listen to other data network channel interfaces synchronously and perform connection verification when a user is sensed to enter another data network coverage area. For example, if the user may have received video content corresponding to the voice call at another location, the privilege level for the voice call will be set lower.

When the second audio device 200 is connected to, for example, a 4G-LTE network, the first audio device 100 will decouple from the 4G-LTE network and receive voice data over the second data network, for example by registering the connection identity at the connection switching apparatus 300 to obtain access rights and receiving the connection identity from the first audio device 100. In this case, the earphone part 401 and the first audio device 100 are decoupled from the first data network and may enter a promiscuous mode to reconnect the second audio device 200 or to connect to the second audio device 200 through the connection switching means 300, for example, the listening operation range of the promiscuous mode is 30 to 50 ms. While the first audio device may be decoupled from the 4G-LTE network at this time.

In one embodiment, the second user equipment may be communicatively coupled to the connection switching device 300 through the third data network 30, and then the third data network may establish a connection with the second data network through the connection switching device 300. Preferably, the connection switching device 300 may be provided with device information of the registered device near the position where the headset 401 is located, such as data timing transceiving information, carrying baud rate, registered device name/type, and the like. In some implementations, such device information may be periodically refreshed by the system background of connection switching apparatus 300 to facilitate connection switching apparatus 300 in determining a selection of one or more data networks that are available.

Since the wireless headset 400 has performed bluetooth registration on the first audio device 100, the wireless headset can connect the second audio device 200 through the connection switching apparatus 300 without performing registration or connection coupling on the second audio device in advance. The priority connection is data content configured to sort the voice content that the user wants to listen to and set priority processing based on the priority connection scheme when voice data information carried by other data networks is transmitted to any of the audio devices and/or the connection switching apparatus 300 in the same time period. Wherein optionally the voice data content ordered in the later stage may temporarily reside in a memory of the second audio device 200 or the connection switching apparatus 300, for example.

In one embodiment, the connection switching device 300 may include a signal transceiver 310 capable of being attached to and communicatively coupled with the body of the wireless headset 400 and a processor in remote communication with the signal transceiver 310. In the example shown in fig. 2, the signal transceiver 310 may be provided with a lead 301 for connecting to an end of the body of the wireless headset 400, for example, the signal transceiver 310 is provided with two

lead interfaces

302, 303 for connecting to the ends of the body of the

headset parts

401 and 402, respectively. In some implementations, this connection may be mechanically secured, such as an interference fit fastening, a magnetic fastening, and the lead interfaces 302, 303 are provided with a wireless interface, such as a bluetooth interface, adapted to allow the wireless headset 400 to perform a first data network coupled communication with the first audio device 100.

The signal transceiver 310 may be configured to automatically communicatively couple with the connection switching apparatus 300 to receive the connection identifier. Wherein the earphone part 401 can be separately connected to the first and second audio devices, and the earphone part 402 is used only as a playing accessory of the earphone 401.

Claims

1. A method for transmitting audio information using a wireless headset, the wireless headset (400) comprising a headset portion (401, 402) for wearing by a user's left and right ears, the headset portion having a structure at least partially symmetrical to each other, wherein the headset portion has a body having a speaker (421), a microphone (441, 442) and an audio processing circuit electrically coupled to the speaker and the microphone, the signal processing circuit being electrically coupled to the audio processing circuit, a radio frequency transceiver for coupling audio devices over a data network and a baseband processor coupled to the radio frequency transceiver, the baseband processor being configured to perform a communication coupling with any external audio device via the radio frequency transceiver, the method comprising:

-performing a communication verification via a first data network (10) with a headset part (401) via one or more wireless interfaces of a first audio device (100), wherein said first audio device (100) is in turn connectable to a second and a third data network via the wireless interface, wherein the first, second and third data networks are arranged independently of each other;

-determining said communication verification to create a registration of the earphone part (401) on a first audio device and generating a connection identity, wherein said first audio device (100) is set to create a first priority connection for the earphone part via a first data network (10) with the first audio device during said communication verification; and

setting a second priority connection to the headset part (401) via the second data network (20) when the first data network connection is disconnected by means of the connection switching device (300), and performing a voice data transmission to the wireless headset via the second data network in accordance with the connection identification, wherein the headset part (401) is switched from the first data network to the second data network to perform the second priority connection via the second data network without interrupting the audio data transmission with the wireless headset,

further comprising: connecting, by means of the connection switching means (300), the second audio device (200) via the third data network to continuously transmit the voice data to the second audio device, under the condition that the second priority connection is determined, wherein when the voice data is switched to be transmitted from the second data network to the third data network, the transmission of the remaining part of the voice data content after the switching is performed on the second audio device (200).

2. The method of claim 1, further comprising the steps of:

placing the wireless earphone (400) under any one of the data networks, setting the earphone part (401) which establishes data connection with the external audio equipment as resident equipment, setting the earphone part (402) as follower equipment when the earphone part (402) feeds back a connection identifier which indicates that the earphone part (401) keeps synchronous with a clock of the established data connection, and generating an interface key which indicates radio frequency communication between the earphone part (402) and the earphone part (401) in the earphone part (401);

the resident device sends multimedia data content to the following device according to the determined connection identifier and the kept clock;

the resident device sends a control instruction for adjusting the multimedia data content to the following device according to the interface key under the condition of keeping sending the multimedia data content; and

and generating an upgrading request for the TWS function according to the adjustment, and determining to execute the upgrading according to the version index stored in the audio equipment and the interface key so as to realize the rapid upgrading of the Bluetooth headset supporting the two-way communication.

3. The method of claim 1, further comprising: associating the connection identity with an identity of a first audio device such that the wireless headset (400) can switch connections between the first and second data networks, wherein the switching of connections is based on:

estimating power consumption of a wireless headset (400), wherein during a period when a first audio device (100) generates a connection identifier, the first audio device (100) acquires device information of the wireless headset (400) through a first data network (10) to create a device registration of the wireless headset on the first audio device (100), wherein the device information comprises available power and available play modes of the wireless headset (400), and when the first data network (10) is sensed to be interrupted, the first audio device (100) transmits the connection identifier to a connection switching device (300) through a second data network (20) to complete the device registration of the wireless headset on the connection switching device (300);

data capacity and processing efficiency for received and decoded speech data, and/or

A transmission efficiency of a radio frequency transceiver of the wireless headset.

4. The method of claim 2, further comprising: the audio processing circuitry of the resident device is set to operate in a low power consumption mode in accordance with performing the upgrade and is only woken up when a next upgrade request is performed.

5. The method of claim 2, wherein such resident devices further comprise removable accessory devices.

6. A method according to claim 5, characterized in that each earphone part (401, 402) is further provided with an ear tag (411, 412) for clamping the earphone part body in the ear canal of the user when worn by the user and thus having a curved shape adapted to the pinna of the user, the ear tag being further configured with sensing means for activating the triggering of the communication coupling when the user touches the body and presses the body in the direction of the inside of the ear canal when clamped in the ear canal.