A control method of a wireless earphone and a wireless earphone

Abstract

The present disclosure relates to a control method of a wireless earphone and the wireless earphone, wherein the control method comprises: providing a first wireless communication mode and a second wireless communication mode for the wireless earphone, in the case of needing to receive audio data, receiving audio data with audio quality higher than a first threshold by using the first wireless communication mode, or receiving audio data with audio quality lower than a second threshold by using the second wireless communication mode; monitoring a talk signal; and in the case of monitoring the talk signal, stopping receiving the audio data and transmitting talk data by using the second wireless communication mode. The control method of the present disclosure provides two different wireless communication modes, so as to realize the transmission of high-quality music by the first wireless communication mode with high transmission rate, and realize the talk by the second wireless communication mode with low transmission rate, so as to ensure the music experience of the user while improving the endurance of the wireless earphone.

Description

Technical Field

[0001] This invention relates to the field of wireless earphone technology, and more particularly to a control method for wireless earphones and wireless earphones. Background Technology

[0002] With social progress and improved living standards, headphones have become an indispensable part of daily life. Traditional wired headphones connect to smart devices (such as smartphones, laptops, and tablets) via wires, which restricts the wearer's movement, especially during exercise. Furthermore, the tangling and pulling of the headphone wires, as well as the stethoscope effect, negatively impact the user experience. While ordinary Bluetooth headphones eliminate the wire between the headphones and smart devices, a connection still exists between the left and right ears. True wireless stereo headphones solve these problems.

[0003] However, existing true wireless stereo earbuds connect to smart devices via Bluetooth to receive music or make calls. Bluetooth connections have very limited bandwidth, making them unsuitable for high-performance or lossless music, and the distance between true wireless stereo earbuds and smart devices is also limited. Summary of the Invention

[0004] This invention provides a control method for wireless headphones and wireless headphones. By providing two different wireless communication modes, a first wireless communication mode with a high transmission rate is used to transmit high-quality music, while a second wireless communication mode with a low transmission rate is used for calls, thereby ensuring the user's music experience and improving the battery life of the wireless headphones.

[0005] This disclosure provides a control method for a wireless headset, comprising: providing the wireless headset with a first wireless communication mode and a second wireless communication mode, such that the transmission protocols of the first wireless communication mode and the second wireless communication mode are different, and the transmission rate of the first wireless communication mode is higher than the transmission rate of the second wireless communication mode; the control method comprising: when audio data needs to be received, using the first wireless communication mode to receive audio data with audio quality higher than a first threshold, or using the second wireless communication mode to receive audio data with audio quality lower than a second threshold; monitoring call signals; and when a call signal is detected, stopping the reception of audio data and transmitting call data using the second wireless communication mode.

[0006] This disclosure also proposes a wireless headset, which includes at least a processor, a memory, a first wireless communication module, and a second wireless communication module. The processor is connected to the memory, the first wireless communication module, and the second wireless communication module, respectively. The first wireless communication module transmits data using a first wireless communication mode, and the second wireless communication module transmits data using a second wireless communication mode. The transmission rate of the first wireless communication mode is higher than that of the second wireless communication mode. The processor is configured to: receive audio data with an audio quality higher than a first threshold using the first wireless communication module, or receive audio data with an audio quality lower than a second threshold using the second wireless communication module when audio data needs to be received; monitor call signals; and, upon detecting a call signal, stop receiving audio data and transmit call data using the second wireless communication module.

[0007] The disclosed headphone control method provides two different wireless communication modes for wireless headphones, enabling the transmission of high-quality music via a first wireless communication mode with a high transmission rate. Upon detecting a call signal, a second wireless communication mode with a low transmission rate is used for the call. Utilizing the first wireless communication mode to transmit high-quality music ensures a superior music experience for the user, while using the low-power second wireless communication mode for calls improves the headphone's battery life.

[0008] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0009] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings illustrate various embodiments generally by way of example rather than limitation, and are used, together with the description and claims, to illustrate the disclosed embodiments. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0010] Figure 1 A basic flowchart of the wireless headphone control method of this disclosure is shown.

[0011] Figure 2 A schematic diagram showing the wake-up timing of the first and second wireless communication modes of the wireless earphone of this disclosure is provided.

[0012] Figure 3This diagram illustrates a sub-process of the target device transmitting audio data.

[0013] Figure 4 This diagram illustrates the subprocess for determining and updating the preset transformation matrix in this disclosure.

[0014] Figure 5 A schematic diagram of the basic structure of the wireless earphone disclosed herein is shown. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and specific examples, but these are not intended to limit the scope of this disclosure.

[0016] The terms "first," "second," and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used for distinction. Words such as "including" or "comprising" mean that the element preceding the word encompasses the elements listed after it, and do not exclude the possibility of encompassing other elements as well. The execution order of the steps in the method described in conjunction with the accompanying drawings in this disclosure is not intended to be limiting. As long as the logical relationship between the steps is not affected, several steps can be integrated into a single step, a single step can be decomposed into multiple steps, and the execution order of the steps can be changed according to specific needs.

[0017] This disclosure provides a control method for a wireless headset, comprising: providing the wireless headset with a first wireless communication mode and a second wireless communication mode, wherein the transmission protocols of the first wireless communication mode and the second wireless communication mode are different, and the transmission rate of the first wireless communication mode is higher than that of the second wireless communication mode. The wireless headset can communicate with a first smart device based on the first wireless communication mode, and can also connect to a second smart device based on the second wireless communication mode. It can connect independently or additionally, and can switch between the first and second wireless communication modes to connect to the same smart device. The smart device can be a mobile phone, tablet, computer, Wi-Fi access point (AP), television, set-top box, etc.

[0018] In this disclosure, the wireless earphone can be configured with two audio signal loops, both of which are connected to the earphone's audio processing module. The signals first pass through the audio processing module, then through the DAC (digital-to-analog converter) module, and finally are played out through the speaker. In some embodiments, the audio processing module can be used to process the audio signal, such as audio equalization, volume adjustment, DRC (dynamic range control), audio upsampling and filtering, and at least one of the following operations: audio SDM (Sigma-Delta Modulation). The wireless earphone may also include multiple ADC modules for connecting multiple microphones. For the received voice signals from the multiple microphones, noise reduction processing can be performed using the multiple microphones before voice keyword recognition and voice recognition. In some embodiments, for example, VAD (Voice Activity Detection) can be performed on the voice information first to reduce power consumption. In other embodiments, when music is playing, music echo cancellation can be performed on the acquired voice signal to eliminate the music echo in each channel of the microphone audio signal. In other embodiments, the wireless earphone can also perform other processing on the audio signal, which is not limited here.

[0019] Figure 1 The flowchart of the control method for the wireless earphone of this disclosure is shown. The control method of this disclosure includes:

[0020] In step S101, when audio data needs to be received, audio data with an audio quality higher than a first threshold is received using the first wireless communication mode, or audio data with an audio quality lower than a second threshold is received using the second wireless communication mode. The control method of this disclosure receives audio data with an audio quality higher than the first threshold using the first wireless communication mode, thereby ensuring that the wireless headphones provide high-quality music to the user. For example, when the wireless headphones are connected to a Wi-Fi AP via the first wireless communication mode, they can directly receive high-quality music sent by the Wi-Fi AP. The audio quality referred to in this disclosure can be determined based on information such as the total size of the audio data, the bit rate of the audio data, and the format of the audio data. For example, audio data in APE or FLAC format can be considered high-quality music. Also, common music with different bit rates includes 64Kb / s, 128Kb / s, 192Kb / s, and 320Kb / s, and audio data with a bit rate equal to or higher than 320kbps can be considered high-quality music. The specific determination of audio quality and the setting of the first threshold can be based on this, and are not specifically limited here.

[0021] When the audio quality received by the wireless headphones is lower than the second threshold, the bandwidth of the second wireless communication mode is sufficient to transmit audio data below the second threshold. Therefore, in this disclosure, the second wireless communication mode can be used to receive audio data below the second threshold. This utilizes the low-power characteristics of the second wireless communication mode (for example, the second wireless communication mode can be a Bluetooth communication model) to reduce the power consumption of the wireless headphones while ensuring a good user experience, thereby extending the headphones' battery life. The first and second thresholds in this disclosure can be the same value. For example, the first and second thresholds can be set to 320Kb / s. Audio data with a bit rate of 320Kb / s or higher is transmitted through the first wireless communication mode, while audio data with a bit rate lower than 320Kb / s is transmitted through the second wireless communication mode. In other embodiments, the first and second thresholds can also be set to different values. Again using bit rate as an example, the first threshold can be set to 192Kb / s, and the second threshold can be set to 320Kb / s. Thus, audio data with a bit rate of 192Kb / s or higher is transmitted through the first wireless communication mode, while audio data with a bit rate lower than 320Kb / s is transmitted through the second wireless communication mode. For audio data between 192Kb / s and 320Kb / s, options can be provided to allow users to select their preferred transmission mode based on their custom settings. The above is merely an example; the specific first and second thresholds can be set according to actual needs and are not limited here.

[0022] In step S102, the call signal is monitored. The first wireless communication mode of this disclosure can connect to a first smart device (such as a Wi-Fi AP, a user's mobile phone, a PAD, etc.), while the second wireless communication mode can connect to the user's terminal with calling capabilities, such as a mobile phone. Alternatively, the first wireless communication mode can connect to the user's mobile phone and play high-quality music, while the second wireless mode monitors whether the mobile phone's call signal has arrived.

[0023] In step S103, upon detecting a call signal, audio data reception is stopped, and call data is transmitted using the second wireless communication mode. That is, in this disclosure, if the user is currently playing high-quality music using the first wireless communication mode, playback can be stopped, and the user can switch to the second wireless communication mode to answer the call and use the second wireless communication mode for the call. If the user is currently playing music using the second wireless communication mode, music playback is stopped directly, and the call is answered. Taking Wi-Fi communication as an example and Bluetooth communication as the second wireless communication mode, compared to Bluetooth communication, Wi-Fi communication consumes more power and its data transmission method results in less consistent call performance. Therefore, in this disclosure, upon detecting a call signal, switching to the second wireless communication mode (e.g., Bluetooth communication) ensures the user's priority for calls while maintaining call quality, reducing overall headphone power consumption, improving headphone battery life, and enhancing the user experience.

[0024] Compared to low-quality music, high-quality music provides users with more musical details. The method disclosed herein transmits high-quality music using a high-transmission-rate first wireless communication mode, ensuring continuous transmission and a superior user experience. When a call signal is detected, a low-transmission-rate second wireless communication mode is used to conduct the call, meeting the user's call needs and improving the wireless headset's battery life.

[0025] The wireless earphone disclosed herein has a first wireless communication mode and a second wireless communication mode. These two communication modes can communicate with different devices or connect to the same device. This improves the earphone's playback experience. In some embodiments, the control method further includes:

[0026] The first wireless communication mode is used to receive audio data from the first device, that is, the wireless headphones receive and play high-quality music from the first device.

[0027] Simultaneously, the second wireless communication mode is kept in standby mode with the second device to monitor the call signal of the second device. That is, the second wireless communication mode of the wireless headset is in standby mode at this time. The standby mode described in this disclosure can be a state where data can be received intermittently from the second device; this interval can be 500ms, 1s, 2s, etc. In some cases, the second wireless communication module is in sleep mode most of the time, waking up at intervals to receive data from the second device. If a call is detected, the second wireless communication module exits standby mode. In standby mode, the second device can intermittently send data to the wireless headset and stop the wireless headset from receiving audio data from the first device.

[0028] Upon detecting a call signal from the second device, the system stops receiving audio data from the first device using the first wireless communication mode and instead uses the second wireless communication mode to transmit call data from the second device. In other words, in this disclosure, when no call signal from the second device is detected, the second wireless communication mode can enter standby or sleep mode, receiving high-quality music solely through the first wireless communication mode. When a call signal from the second device is detected, the second wireless communication mode can address the user's call needs for the second device, ensuring that even if the user is playing music on a different device than the second device, the call takes priority over music playback, preventing missed calls from the second device. Furthermore, using the second wireless communication mode for calls further reduces the overall power consumption of the wireless headset.

[0029] In some embodiments, the first wireless communication mode is Wi-Fi communication, and the second wireless communication mode is Bluetooth communication. That is, the wireless earphones of this disclosure can simultaneously have a Wi-Fi module and a Bluetooth module, corresponding to the first wireless communication mode and the second wireless communication mode, respectively. This configuration allows the wireless earphones to receive music from a Wi-Fi access point (AP) and receive phone calls from a mobile phone, ensuring that the user does not miss any calls. For example, the wireless earphones may include a left earphone and a right earphone, with the Wi-Fi modules of the left and right earphones having the same MAC address, allowing both earphones to simultaneously receive the same audio Wi-Fi frame. In some embodiments, the left and right earphones can also establish separate Wi-Fi connections with smart devices, thereby receiving audio frames through independent Wi-Fi connections.

[0030] Bluetooth 2.4G, such as BT5.0 and BT5.2, can be classic Bluetooth, Bluetooth Low Energy, or LE audio, with transmission rates of 500Kbps, 1Mbps, 2Mbps, 3Mbps, etc., but the audio quality is relatively poor. Mainstream Wi-Fi standards such as IEEE 802.11n, 802.11ac, and Wi-Fi 6 can provide transmission rates of 300Mbps, exceeding the bandwidth required for traditional CD audio quality and meeting users' demands for high-quality music. In this embodiment, when the audio quality is determined to be higher than a first threshold, a first wireless communication mode with a high transmission rate is used, thereby effectively utilizing the high bandwidth of the first wireless communication mode to provide users with a superior music experience. Specifically, the second wireless communication mode and the first wireless communication mode can operate on different frequency bands; for example, Wi-Fi communication can operate at 5GHz, while Bluetooth Low Energy operates at 2.4GHz. This avoids interference between Bluetooth communication and Wi-Fi communication.

[0031] When a user wears wireless headphones, music can be played, and data transmission occurs during this process. However, in many cases, the user may simply wear the wireless headphones without playing music; in this situation, the wireless headphones can be considered to be in an idle state. When the headphones are in an idle state, the control method further includes:

[0032] The first and second wireless communication modes are controlled to enter a standby state. That is, in this example, when neither a call is being made nor music is being played, both the first and second wireless communication modes of the wireless headset enter a standby state. In the standby state, the first wireless communication mode is controlled to wake up at a first interval and receive a first data frame; and the second wireless communication mode is controlled to wake up at a second interval and transmit a second data frame. Taking Wi-Fi communication as the first wireless communication mode and Bluetooth communication as the second wireless communication mode as an example, for instance, Wi-Fi communication can be controlled to wake up every T1, where T1 could be, for example, 200ms, 500ms, or 1s, and then receive a beacon frame sent by the user device. The beacon frame for Wi-Fi communication in this disclosure can be a timed broadcast frame. Wi-Fi communication can wake up from standby using an active wake-up method. The beacon frame can carry an indicator flag to indicate whether the target device has buffered audio data to be transmitted to the headset. Bluetooth communication wakes up every T2, where T2 could also be, for example, 200ms, 500ms, or 1s, and receives and sends Bluetooth frames. The specific wake-up order is not limited here. For example, Wi-Fi communication can wake up first, receive beacon frames, and then Bluetooth communication can wake up to receive and send Bluetooth frames. Alternatively, Bluetooth communication can wake up first, receive and send Bluetooth frames, and then Wi-Fi communication can wake up to receive beacon frames.

[0033] In standby mode, the wake-up cycles of the first wireless communication mode and the second wireless communication mode can be designed according to actual needs. In some embodiments, the first duration is equal to the second duration, and the wake-up times of the first wireless communication mode and the second wireless communication mode are adjacent. That is, in this disclosure, the wake-up cycles of the first wireless communication mode and the second wireless communication mode are the same, and the wake-up duration is also the same. For example, if the wake-up cycle interval T1 = T2 = 1s and the wake-up duration t1 = t2 = 200ms, then both the Wi-Fi module and the Bluetooth module wake up once per second, with each wake-up lasting 200ms. The wake-up times of Wi-Fi communication and Bluetooth communication can be adjacent independently or additionally, and the wake-up durations of Wi-Fi communication and Bluetooth communication can be set differently, for example, t1 = 100ms and t2 = 200ms. Specific details are not limited here. Figure 2 As shown, this disclosure further designs the wake-up timing of the first wireless communication mode and the second wireless communication mode to be adjacent, that is, the Bluetooth module wakes up immediately after the Wi-Fi module wakes up, or the Wi-Fi module wakes up immediately after the Bluetooth module wakes up. Since the stabilization time of modules such as clocks and processors usually takes several milliseconds or tens of milliseconds, or the stabilization time of a crystal clock, or a clock signal generated by a crystal and a phase-locked loop, from the start of operation to stable output, also requires milliseconds or several milliseconds. Therefore, through this design, the stabilization time consumed by the clock, processor, and other modules shared by Wi-Fi and Bluetooth communication during the standby to wake-up process can be reduced, thereby reducing the power consumption of the Wi-Fi and Bluetooth modules during the wake-up process. Furthermore, the wireless communication mode that exits the standby state later can have a very small delay, thus also reducing the overall delay of the system exiting the standby state.

[0034] During the use of wireless headphones, users may switch from idle to call or playback modes. For example, when a user is using a terminal device and enters a video platform app, audio data needs to be transmitted, requiring the headphones to switch from idle to playback mode. If the transmitted audio data is high-quality, it needs to be transmitted via Wi-Fi. However, if this occurs during the Bluetooth wake-up period instead of the Wi-Fi wake-up period, approximately a 1-second Wi-Fi communication cycle is required to wake up, potentially leading to a poor user experience. In some embodiments, the control method further includes: if a second notification message is parsed from a first data frame, waking up the second wireless communication mode based on the second notification message; or if a first notification message is parsed from a second data frame, waking up the first wireless communication mode based on the first notification message.

[0035] Taking Wi-Fi and Bluetooth communication as examples, with t1 = t2 = 200ms and wake-up periods T1 = T2 = T = 1s, both Wi-Fi and Bluetooth wake up once per second. After waking up, Wi-Fi receives a beacon frame (first data frame) sent by the user device. Bluetooth wakes up every T seconds, receiving and sending a Bluetooth frame (second data frame). Using the control method of this disclosure, a second notification message can be carried in the first data frame, indicating the wake-up of Bluetooth communication; alternatively, a first notification message can be carried in the second data frame, indicating the wake-up of Wi-Fi communication. Therefore, in idle states, when a user needs to play music or make a call, the corresponding wireless communication mode can be quickly activated. For example, if the transmitted audio data is high-quality audio, it needs to be transmitted via Wi-Fi. In this case, Bluetooth wakes up first, receives and sends a Bluetooth frame, and the first notification message can be parsed from the Bluetooth wake-up frame. Based on the first notification message, Wi-Fi communication is then activated to transmit the high-quality audio data. In other embodiments, when data arrives and it is determined that Bluetooth communication is needed for transmission, if the current wake-up period is for Wi-Fi communication rather than Bluetooth communication, the indication information for waking up Bluetooth communication can be parsed from the beacon frame received from Wi-Fi communication, and Bluetooth communication can be woken up according to the indication information. This effectively shortens the wake-up time of the wireless communication mode required by the user, and allows for setting longer wake-up periods for both Wi-Fi and Bluetooth communication. Even if the required wireless communication mode is not in a wake-up period when audio data arrives, it can still be woken up promptly by a notification message from another wireless communication mode that is in a wake-up period, thus ensuring smooth use of the wireless headphones.

[0036] In some embodiments, the control method further includes: when the received audio data in the cache is complete and the amount of unplayed audio data is less than a first capacity threshold, issuing a third notification message to cause the target device to reduce the audio quality of the audio data it transmits. In this disclosure, the wireless headphones are designed with a cache. For example, when receiving high-quality audio data via Wi-Fi communication, the received audio data needs to be written into the cache. Playback is performed when the cached music is sufficient to meet the playback conditions. Playing audio consumes the cache, while receiving audio data fills the cache. If the cached audio data is insufficient to support playback, playback will be choppy. This disclosure determines the amount of received but unplayed audio data in the cache. When the audio data in the cache is less than the first capacity threshold, a third notification message is issued to notify the smart device to reduce the audio encoding bitrate. This reduces the probability of choppy playback during wireless headphone audio playback and improves playback smoothness. After the terminal reduces the audio encoding bitrate, if the conditions of the second wireless communication mode are met, the device can switch to the second wireless communication mode to perform audio data transmission.

[0037] Similarly, if the received audio data in the buffer is complete and the amount of unplayed audio data exceeds the second capacity threshold, a fourth notification message is sent to instruct the target device to improve the audio quality of the audio data it transmits. This indicates that the audio data in the buffer is relatively abundant, allowing for the reception of high-bitrate audio data and improved music playback quality. Accordingly, after the terminal increases the audio encoding bitrate, if the conditions of the first wireless communication mode are met, it can also switch to the first wireless communication mode to perform audio data transmission.

[0038] According to the foregoing embodiments, the wireless earphone includes a left earphone and a right earphone. In some embodiments, the control method further includes: when audio data needs to be received, receiving left channel audio data using a first wireless communication mode of the left earphone, and receiving right channel audio data using a first wireless communication mode of the right earphone. That is, in this disclosure, the corresponding channel data is directly received through the left and right earphones, without the need for the left and right earphones to receive all the audio data and then parse out the left and right channels. As a specific sending and receiving method, such as... Figure 3 As shown, the left channel audio data and the right channel audio data are sent by the target device in the following manner:

[0039] In step S301, the audio data to be sent is split into left channel data and right channel data. The specific target device (e.g., a mobile phone) can process the split left and right channel audio data with or without compression. Specifically, the left channel audio can be modulated into a Wi-Fi frame signal to obtain left channel data, and the right channel audio can be modulated into a Wi-Fi frame signal to obtain right channel data.

[0040] In step S302, the left channel data and the right channel data are processed using a preset transformation matrix, such that after processing, the left channel data and the right channel data are divided into first data and second data of equal size. As a specific example, the left channel data and the right channel data can be multiplied by the preset transformation matrix, thereby dividing the left channel data and the right channel data into first data and second data of equal size after processing. This first data and second data are the data to be transmitted to the wireless headset.

[0041] In step S303, the first data is transmitted through the first antenna of the target device, and the second data is transmitted through the second antenna of the target device, so that the left and right earphones can recover their respective audio data from the received data based on the air channel matrix, wherein the product of the air channel matrix and the preset transformation matrix is ​​an identity matrix. The control method of this disclosure uses two antennas of the target device, such as a mobile phone, namely the first antenna and the second antenna, to transmit the first data and the second data respectively. Since the first data and the second data are of the same size, the first antenna can transmit the first data, and the second antenna can transmit the second data. This transmission method significantly improves the data transmission efficiency of the device compared to a traditional single antenna. Because the target device splits the audio data into left channel data and right channel data in step S301, after the target device transmits the data in the above manner, the wireless earphones can recover their respective channel data based on the air channel matrix. In order to recover the respective channel data, this disclosure sets the product of the air channel matrix and the preset transformation matrix to be an identity matrix. Thus, the left earphone receives only the left channel data through the air channel matrix, and the right earphone receives only the right channel data through the air channel matrix, thereby improving the transmission efficiency of audio data by about 100%.

[0042] In some embodiments, such as Figure 4 As shown, the control method further includes:

[0043] In step S401, the left and right earpieces test their respective channel parameters based on the test signal sent by the target device. As a specific example, the target device sends test frames to the left and right earpieces or inserts pilot signals into the radio frame, allowing the earpieces to measure the channel parameters of the air channel based on the test frames or pilot signals. When the target device sends test frames or inserts pilot signals into the radio frame, it may or may not use a preset conversion matrix; the specific method can be set according to actual needs.

[0044] In step S402, the left or right earphone transmits its own channel data to the right or left earphone using the second wireless communication mode. After receiving a test frame or pilot signal, the left and right earphones respectively measure the air channel parameters and send the air channel test results to the other earphone. For example, after the left earphone completes its measurement, it sends its air channel parameters to the right earphone via Bluetooth communication.

[0045] In step S403, the right or left earphone transmits its channel parameters to the target device using a first wireless communication mode, enabling the target device to update the preset conversion matrix based on the channel parameters. Based on the aforementioned example, the right earphone obtains the channel parameters of the left earphone and then transmits the channel parameters measured by each earphone to the smart device via Wi-Fi communication. Thus, the target device can obtain the preset conversion matrix or update it based on the air channel parameters of the two earphones, such that the product of the conversion matrix and the air channel matrix is ​​an identity matrix, or that the product of the updated conversion matrix and the air channel matrix is ​​an identity matrix, where the air channel matrix is ​​determined based on the air channel parameters of the left and right earphones.

[0046] In this disclosure, one of the left and right earbuds transmits its channel parameters to the other earbud via Bluetooth. The other earbud then transmits the channel parameters measured by the antennas of both earbuds to a smart device via Wi-Fi. The smart device uses this information to obtain a conversion matrix or update the conversion matrix. The target device splits the audio signal into a left channel and a right channel. The left channel audio is modulated onto a first Wi-Fi transmission signal, and the right channel audio is modulated onto a second Wi-Fi transmission signal. The two transmission signals are first transmitted through a preset conversion matrix, then transmitted through the target device's two antennas. After passing through the airborne wireless channel, the left earbud antenna receives the first transmission signal and recovers the left channel audio signal; the right earbud antenna receives the second transmission signal and recovers the right channel audio signal. By using dual antenna transmission and a preset conversion matrix, the earbuds can directly obtain their respective channel data, thereby increasing the data transmission capability of the smart device's earbuds.

[0047] In some examples, the battery status of the wireless earbuds can also be monitored. When the battery level falls below a set threshold, the first wireless communication mode is disabled, and the second wireless communication mode is used to receive audio data. This ensures that the wireless earbuds can still maintain communication for a longer period even with low battery levels. This is especially important for calls, which don't require high-quality transmission; simply connecting the call is sufficient. Therefore, using the second wireless communication mode as much as possible when battery power is limited effectively extends the overall battery life of the wireless earbuds and improves the user experience.

[0048] This disclosure also proposes a wireless earphone, such as Figure 5 As shown, the wireless headset 500 includes at least a processor 501, a memory 502, a first wireless communication module 503, and a second wireless communication module 504. The processor 501 is connected to the memory 502, the first wireless communication module 503, and the second wireless communication module 504. The first wireless communication module 503 uses a first wireless communication mode for transmission, and the second wireless communication module 504 uses a second wireless communication mode for transmission. The transmission rate of the first wireless communication mode is higher than that of the second wireless communication mode. The processor 501 is configured to: receive audio data with an audio quality higher than a first threshold using the first wireless communication module, or receive audio data with an audio quality lower than a second threshold using the second wireless communication module when audio data needs to be received; monitor call signals; and stop receiving audio data and transmit call data using the second wireless communication module when a call signal is detected.

[0049] In this disclosure, processor 501 can be a processing device that includes one or more general-purpose processing devices, such as a microprocessor, a central processing unit (CPU), a graphics processing unit (GPU), etc. More specifically, the processor can be a complex instruction set computing (CISC) microprocessor, a reduced instruction set computing (RISC) microprocessor, a very long instruction word (VLIW) microprocessor, a processor that runs other instruction sets, or a processor that runs a combination of instruction sets. The processor can also be one or more special-purpose processing devices, such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), digital signal processors (DSPs), system-on-a-chip (SoCs), etc.

[0050] The memory 502 may be such as read-only memory (ROM), random access memory (RAM), phase-change random access memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), electrically erasable programmable read-only memory (EEPROM), other types of random access memory (RAM), flash drive or other forms of flash memory, cache, register, static memory, etc.

[0051] In some embodiments, audio data from the first device is received using the first wireless communication mode;

[0052] To maintain the second wireless communication mode in standby mode with the second device, so as to monitor the call signal of the second device using the second wireless communication mode; and

[0053] If a call signal from the second device is detected, the system stops receiving audio data from the first device using the first wireless communication mode and transmits call data from the second device using the second wireless communication mode.

[0054] In some embodiments, the control method further includes: in an idle state, controlling the first wireless communication mode and the second wireless communication mode to enter a standby state; in the standby state, controlling the first wireless communication mode to wake up at a first time interval and receive a first data frame; and controlling the second wireless communication mode to wake up at a second time interval and transmit a second data frame.

[0055] In some embodiments, the first duration is equal to the second duration, and the wake-up times of the first wireless communication mode and the second wireless communication mode are adjacent.

[0056] In some embodiments, the control method further includes: if a second notification message is parsed from a first data frame, waking up the second wireless communication mode based on the second notification message; or if a first notification message is parsed from a second data frame, waking up the first wireless communication mode based on the first notification message.

[0057] In some embodiments, the control method further includes: issuing a third notification message when the reception of the cached audio data is completed and the amount of unplayed audio data is less than a first capacity threshold, so as to cause the target device to reduce the audio quality of the audio data it sends; and issuing a fourth notification message when the reception of the cached audio data is completed and the amount of unplayed audio data is greater than a second capacity threshold, so as to cause the target device to improve the audio quality of the audio data it sends.

[0058] In some embodiments, the wireless earphones include a left earphone and a right earphone, and the control method further includes: receiving left channel audio data using a first wireless communication mode of the left earphone when audio data needs to be received, and receiving right channel audio data using a first wireless communication mode of the right earphone; wherein the left channel audio data and the right channel audio data are transmitted by the target device in the following manner:

[0059] The audio data to be sent is split into left channel data and right channel data;

[0060] The left channel data and the right channel data are processed using a preset conversion matrix, so that after processing by the preset conversion matrix, the left channel data and the right channel data are divided into first data and second data of the same size;

[0061] The first data is transmitted through the first antenna of the target device, and the second data is transmitted through the second antenna of the target device, so that the left earphone and the right earphone recover their respective audio data from the data they receive based on the air channel matrix, wherein the product of the air channel matrix and the preset transformation matrix is ​​an identity matrix.

[0062] In some embodiments, the control method further includes: the left earpiece and the right earpiece testing their respective channel parameters according to the test signal sent by the target device; the left earpiece or the right earpiece sending its own channel data to the right earpiece or the left earpiece using a second wireless communication mode; and the right earpiece or the left earpiece sending the channel parameters of the left earpiece and the right earpiece to the target device using a first wireless communication mode, so that the target device updates the preset conversion matrix based on the channel parameters.

[0063] In some embodiments, the first wireless communication mode is Wi-Fi communication, and the second wireless communication mode is Bluetooth communication.

[0064] Furthermore, although exemplary embodiments have been described herein, their scope includes any and all embodiments based on this disclosure that have equivalent elements, modifications, omissions, combinations (e.g., schemes involving intersections of various embodiments), adaptations, or alterations. Elements in the claims will be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the implementation of this application, and such examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered illustrative only, and the true scope and spirit are indicated by the full scope of the following claims and their equivalents.

[0065] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. Other embodiments may be used by those skilled in the art upon reading the above description. Furthermore, in the above detailed description, various features may be grouped together to simplify the disclosure. This should not be construed as an intention that a feature of the disclosure that is not claimed is necessary for any claim. Rather, the subject matter of this disclosure may be less than all the features of a particular disclosed embodiment. Thus, the following claims are incorporated herein by reference as examples or embodiments, wherein each claim is independently considered as a separate embodiment, and these embodiments are contemplated as being possible in various combinations or arrangements. The scope of the invention should be determined by reference to the appended claims and the full scope of their equivalents.

[0066] The above embodiments are merely exemplary embodiments of this disclosure and are not intended to limit the invention. The scope of protection of this invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this invention within the spirit and scope of this disclosure, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this invention.

Claims

1. A control method of a wireless earphone, the method comprising: The control method comprises: providing a first wireless communication mode and a second wireless communication mode for the wireless earphone, so that the transmission protocol of the first wireless communication mode is different from that of the second wireless communication mode, and the transmission rate of the first wireless communication mode is higher than that of the second wireless communication mode, the control method comprising: in the case of needing to receive audio data, receiving audio data with audio quality higher than a first threshold by using the first wireless communication mode, or receiving audio data with audio quality lower than a second threshold by using the second wireless communication mode; monitoring a talk signal; and in the case of monitoring a talk signal, if the first wireless communication mode is currently being used to receive audio data, stopping receiving audio data, switching to the second wireless communication mode to transmit talk data, and if the second wireless communication mode is currently being used to receive audio data, stopping receiving audio data and transmitting talk data by using the second wireless communication mode; The method further comprises: in an idle state, controlling the first wireless communication mode and the second wireless communication mode to enter a standby state; in the standby state, controlling the first wireless communication mode to wake up for a first duration and receive a first data frame; and controlling the second wireless communication mode to wake up for a second duration and transmit a second data frame; wherein the first duration is equal to the second duration, and the wake-up time of the first wireless communication mode is adjacent to that of the second wireless communication mode, and the sum of the duration of the first wireless communication mode and the duration of the second wireless communication mode is less than the first duration or the second duration.

2. The control method of a wireless earphone according to claim 1, wherein, The control method further comprises: receiving audio data of a first device by using the first wireless communication mode; keeping the second wireless communication mode in a standby state with a second device to monitor a talk signal of the second device by using the second wireless communication mode; and in the case of monitoring a talk signal of the second device, stopping receiving audio data of the first device by using the first wireless communication mode, and transmitting talk data of the second device by using the second wireless communication mode.

3. The control method of a wireless earphone according to claim 1, wherein, The control method further comprises: in the case of parsing a second notification message from a first data frame, based on the second notification message, waking up the second wireless communication mode; or in the case of parsing a first notification message from a second data frame, based on the first notification message, waking up the first wireless communication mode.

4. The control method of a wireless earphone according to claim 1, wherein, The control method further comprises: in the case that the audio data received and not played in the buffer is less than a first capacity threshold, issuing a third notification message to make the target device reduce the audio quality of the audio data sent by it; in the case that the audio data received and not played in the buffer is greater than a second capacity threshold, issuing a fourth notification message to make the target device increase the audio quality of the audio data sent by it.

5. The control method of a wireless earphone according to claim 1, wherein, The wireless earphone comprises a left earphone and a right earphone, and the control method further comprises: In a case where audio data needs to be received, left-channel audio data is received by using a first wireless communication mode of the left earphone, and right-channel audio data is received by using a first wireless communication mode of the right earphone; The left-channel audio data and the right-channel audio data are transmitted by a target device in the following manner: Splitting audio data to be transmitted into left-channel data and right-channel data; Processing the left-channel data and the right-channel data by using a preset conversion matrix, so that the left-channel data and the right-channel data are divided into first data and second data of the same size after being processed by the preset conversion matrix; Transmitting the first data by a first antenna of the target device, and transmitting the second data by a second antenna of the target device, so that the left earphone and the right earphone recover respective audio data from data received by them based on an over-the-air channel matrix, wherein a product of the preset conversion matrix and the over-the-air channel matrix is a unit matrix.

6. The control method of a wireless earphone according to claim 5, wherein, The control method further comprises: The left earphone and the right earphone respectively test respective channel parameters according to a test signal transmitted by the target device; The left earphone or the right earphone transmits channel data of itself to the right earphone or the left earphone by using a second wireless communication mode; The right earphone or the left earphone transmits channel parameters of the left earphone and the right earphone to the target device by using the first wireless communication mode, so that the target device updates the preset conversion matrix based on the channel parameters.

7. The control method of a wireless earphone according to any one of claims 1 to 6, wherein, The first wireless communication mode is wifi communication, and the second wireless communication mode is Bluetooth communication.

8. A wireless earpiece, characterized in that The wireless earphone at least comprises a processor, a memory, a first wireless communication module, and a second wireless communication module, the processor is connected with the memory, the first wireless communication module, and the second wireless communication module respectively, the first wireless communication module transmits by using a first wireless communication mode, the second wireless communication module transmits by using a second wireless communication mode, and a transmission rate of the first wireless communication mode is higher than a transmission rate of the second wireless communication mode, the processor is configured to: In a case where audio data needs to be received, audio data with an audio quality higher than a first threshold value is received by using the first wireless communication module, or audio data with an audio quality lower than a second threshold value is received by using the second wireless communication module; Monitor a call signal; And In a case where a call signal is monitored, if audio data is currently being received by using the first wireless communication mode, receiving audio data is discontinued, and transmission of call data is switched to the second wireless communication mode, if audio data is currently being received by using the second wireless communication mode, receiving audio data is discontinued, and call data is transmitted by using the second wireless communication mode; In an idle state, the first wireless communication mode and the second wireless communication mode are controlled to enter a standby state; In the standby state, the first wireless communication mode is controlled to wake up for a first time length and receive a first data frame; And The second wireless communication mode is controlled to wake up for a second time length and transmit a second data frame; wherein the first time length is equal to the second time length, and the wake-up time of the first wireless communication mode is adjacent to the wake-up time of the second wireless communication mode, and the sum of the wake-up time length of the first wireless communication mode and the wake-up time length of the second wireless communication mode is less than the first time length or the second time length.

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