Headset wireless earphone

Abstract

This application provides an over-ear wireless headset, relating to the field of electronic technology, which can avoid the limitation of actual bandwidth between the headset and the terminal device. The over-ear wireless headset includes a first headset and a second headset; the first headset includes a first system chip and a first radio frequency antenna, the first system chip being coupled to the first radio frequency antenna; the second headset includes a second system chip; a first transmission line connects the first system chip and the second system chip; the first system chip is configured to wirelessly connect with the terminal device via the first radio frequency antenna and receive a first radio frequency signal sent by the terminal device; the first system chip is configured to transmit a transmission signal generated based on the first radio frequency signal to the second system chip via the first transmission line.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and more particularly to a wireless headset. Background Technology

[0002] Wireless headphones eliminate the limitations of connecting wires to terminal devices (such as mobile phones, laptops, tablets, etc.), and offer a good soundstage and wearing comfort, making them the preferred device for music lovers of all kinds.

[0003] In true wireless earbuds, each earbud contains a system-on-chip (SOC) and a radio frequency antenna coupled to it. The SOC may include an RF chip, Bluetooth chip, digital signal processor, active noise cancellation encoder, etc., allowing both earbuds to wirelessly connect to a terminal device. Currently, there are two communication methods between the left and right earbuds in true wireless earbuds: relay mode or monitor mode. In relay mode, the main earbud's SOC establishes a Bluetooth connection with the phone, receives audio data transmitted over the air, and wirelessly relays the audio data to the secondary earbud's SOC. In monitor mode, the main earbud's SOC establishes a Bluetooth connection with the terminal device, receives audio data transmitted over the air, and the secondary earbud listens for the transmitted audio data. If the secondary earbud does not receive audio data, the main earbud's SOC then wirelessly relays the audio data to the secondary earbud's SOC. Therefore, regardless of whether it is forwarding mode or monitoring mode, the main earphone's SOC will spend some time communicating with the secondary earphone's SOC. During this time, it will be unable to transmit data with the mobile phone, resulting in limited actual bandwidth between the earphone and the terminal device. Summary of the Invention

[0004] Embodiments of this application provide a wireless headset that avoids the limitation of actual bandwidth between the headset and the terminal device.

[0005] Firstly, a wireless over-ear headphone is provided. The wireless over-ear headphone includes a first earpiece and a second earpiece. The first earpiece includes a first system-on-a-chip (SoC) and a first radio frequency (RF) antenna, wherein the first SoC is coupled to the first RF antenna. The second earpiece includes a second SoC. A first transmission line connects the first SoC and the second SoC. The first SoC is configured to wirelessly connect to a terminal device via the first RF antenna and receive a first RF signal sent by the terminal device; the first SoC is also configured to transmit a transmission signal generated based on the first RF signal to the second SoC via the first transmission line. Thus, when the first SoC wirelessly connects to the terminal device via the first RF antenna and receives the first RF signal sent by the terminal device, the first SoC can transmit the transmission signal generated based on the first RF signal to the second SoC via the first transmission line in a wired manner. This avoids wireless communication between the two earpieces, thus avoiding bandwidth limitations between the earpieces and the terminal device. Furthermore, since the second earphone also contains a second system chip, the second system chip can process the transmission signals transmitted by the first system chip of the first earphone, thus avoiding the need for all radio frequency signals to be processed by one earphone and avoiding limitations in computing power.

[0006] In one possible implementation, the first system-on-a-chip (SoC) includes: a first radio frequency (RF) circuit, a first short-range communication core, and a first digital signal processor (DSP); wherein the first RF circuit is coupled to a first RF antenna; the second SoC includes: a second DSP; wherein the first DSP is connected to the second DSP via a first transmission line; the first RF circuit is configured to receive a first RF signal from the first RF antenna and transmit the first RF signal to the first short-range communication core; the first short-range communication core is configured to demodulate the first RF signal into audio encoded data packets and transmit the audio encoded data packets to the first DSP; the first DSP is configured to decode first channel data and second channel data in the audio encoded data packets and transmit the second channel data to the second DSP via the first transmission line. In this scheme, signal transmission between the first and second earphones is mainly achieved through the first transmission line connected between the first and second DSPs. The short-range communication core can be, but is not limited to, a Bluetooth chip, a ZigBee chip, a near field communication (NFC) chip, or other chips derived in the future for short-range wireless communication.

[0007] In one possible implementation, a first digital signal processor typically plays the first channel data based on a first clock signal generated by a crystal oscillator on a first system chip in a first headset; while a second digital signal processor plays the second channel data based on a second clock signal generated by a crystal oscillator on a second system chip in a second headset. Since the clock signals provided by the crystal oscillators in the first and second headsets typically deviate by 20-80µs, the generated first audio signal and the second audio signal also deviate by 20-80µs, which can be perceived by audiophiles, resulting in a poor user experience. To achieve playback synchronization between the first and second earphones, the second system chip further includes: a second short-range communication core; the first and second short-range communication cores are connected via a second transmission line; the first short-range communication core is further configured to send a first synchronization signal to the second short-range communication core via the second transmission line, and to send the first synchronization signal to a first digital signal processor; the first digital signal processor is specifically configured to play first channel data according to the first synchronization signal and generate a first audio signal output to the speaker of the first earphone; the second digital signal processor is specifically configured to play second channel data according to the first synchronization signal and generate a second audio signal output to the speaker of the second earphone.

[0008] In one possible implementation, based on the aforementioned wireless headphones, if the first earpiece is for the left ear, it is usually worn on the left ear. If the terminal device is placed on the right side of the body (e.g., in a pocket on the right side), the radio frequency signal needs to pass through the body before being received by the first radio frequency antenna. This will weaken the received signal of the first radio frequency antenna, resulting in a weaker radio frequency signal received by the first radio frequency circuit. To address this issue, the second system chip further includes: a second radio frequency (RF) circuit and a second short-range communication core; the second earphone also includes a second RF antenna; the second RF circuit is coupled to the second RF antenna; the first short-range communication core and the second short-range communication core are connected via a second transmission line; the first short-range communication core is further configured to determine a first signal quality parameter based on the first RF signal; the second RF circuit is configured to receive a second RF signal sent by the terminal device from the second RF antenna and send the second RF signal to the second short-range communication core; the second short-range communication core is configured to determine a second signal quality parameter based on the second RF signal and send the second signal quality parameter to the first short-range communication core via the second transmission line; the first short-range communication core is configured to determine that, when the quality of the first RF signal is better than the quality of the second RF signal based on the first and second signal quality parameters, the first RF signal is demodulated into an audio encoded data packet. Thus, when the quality of the first radio frequency signal is superior to that of the second radio frequency signal, the first short-range communication core demodulates the first radio frequency signal into audio-coded data packets, making the first earpiece the primary earpiece and the second earpiece the secondary earpiece. Conversely, if the second short-range communication core determines that the quality of the second radio frequency signal is superior to that of the first radio frequency signal, the second short-range communication core demodulates the second radio frequency signal into audio-coded data packets, making the second earpiece the primary earpiece and the first earpiece the secondary earpiece. Furthermore, the aforementioned first or second signal quality parameters include one or more of the following: reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), received signal strength indicator (RSSI), packet error rate (PER), and signal to interference plus noise ratio (SINR).

[0009] In one possible implementation, the second transmission line includes a Universal Asynchronous Receiver / Transmitter (UART) bus.

[0010] In one possible implementation, the first transmission line includes an integrated circuit-embedded audio I2S bus.

[0011] In one possible implementation, the first system-on-a-chip (SoC) includes a first radio frequency (RF) circuit, a first short-range communication core, and a first digital signal processor (DSP); the second SoC includes a second short-range communication core and a second DSP; the first and second short-range communication cores are connected via a first transmission line; the first RF circuit is configured to receive a first RF signal from a first RF antenna and transmit the first RF signal to the first short-range communication core; the first short-range communication core is configured to demodulate the first RF signal into audio encoded data packets and transmit the audio encoded data packets to the first DSP, and transmit the audio encoded data packets to the second short-range communication core via the first transmission line; the second short-range communication core is configured to transmit the audio encoded data packets to the second DSP; the first DSP is configured to decode first channel data in the audio encoded data packets; and the second DSP is configured to decode second channel data in the audio encoded data packets. In this scheme, signal transmission between the first and second earphones is mainly achieved through the first transmission line connected between the first and second short-range communication cores.

[0012] In one possible implementation, to achieve playback synchronization between the first and second headphones, the first short-range communication core is further configured to send a first synchronization signal to the second short-range communication core via a first transmission line, and to send the first synchronization signal to a first digital signal processor; the second short-range communication core is specifically configured to send the first synchronization signal to the second digital signal processor; the first digital signal processor is specifically configured to play first channel data according to the first synchronization signal and generate a first audio signal output to the speaker of the first headphones; the second digital signal processor is specifically configured to play second channel data according to the first synchronization signal and generate a second audio signal output to the speaker of the second headphones.

[0013] In one possible implementation, based on the aforementioned wireless headphones, if the first earpiece is for the left ear, it is typically worn on the left ear. If the terminal device is placed on the right side of the body (e.g., in a right-side pocket), the radio frequency (RF) signal needs to pass through the body before being received by the first RF antenna. This weakens the received signal of the first RF antenna, resulting in a weaker RF signal received by the first RF circuit. To solve this problem, the second system chip further includes: a second RF circuit; the second earpiece also includes a second RF antenna; the second RF circuit is coupled to the second RF antenna; a first short-range communication core is configured to determine a first signal quality parameter based on the first RF signal; the second RF circuit is configured to receive a second RF signal sent by the terminal device from the second RF antenna and send the second RF signal to the second short-range communication core; the second short-range communication core is configured to determine a second signal quality parameter based on the second RF signal and send the second signal quality parameter to the first short-range communication core via a first transmission line; the first short-range communication core is configured to determine that the first RF signal is demodulated into an audio encoded data packet when the quality of the first RF signal is determined to be better than the quality of the second RF signal based on the first and second signal quality parameters. Thus, when the quality of the first radio frequency signal is better than that of the second radio frequency signal, the first short-range communication core demodulates the first radio frequency signal into an audio encoded data packet, and the first earphone becomes the main earphone, while the second earphone becomes the secondary earphone. Conversely, if the second short-range communication core determines that the quality of the second radio frequency signal is better than that of the first radio frequency signal, the second short-range communication core demodulates the second radio frequency signal into an audio encoded data packet, and the second earphone becomes the main earphone, while the first earphone becomes the secondary earphone.

[0014] In one possible implementation, the first transmission line includes a Universal Asynchronous Receiver / Transmitter (UART) bus.

[0015] In one possible implementation, the first system-on-a-chip (SoC) includes: a first radio frequency (RF) circuit, a first short-range communication core, and a first digital signal processor (DSP); wherein the first RF circuit is coupled to a first RF antenna; the second SoC includes: a second short-range communication core and a second DSP; the first RF circuit and the second short-range communication core are connected via a first transmission line; the first RF circuit is configured to receive a first RF signal from the first RF antenna, transmit the first RF signal to the first short-range communication core, and transmit the first RF signal from the first transmission line to the second short-range communication core; the first short-range communication core is configured to demodulate the first RF signal into a first audio encoded data packet and transmit the first audio encoded data packet to the first DSP; the first DSP is configured to decode first channel data from the first audio encoded data packet; the second short-range communication core is configured to demodulate the first RF signal into a second audio encoded data packet and transmit the second audio encoded data packet to the second DSP; the second DSP is configured to decode second channel data from the second audio encoded data packet. In this scheme, signal transmission between the first earphone and the second earphone is mainly achieved through the first transmission line connected between the first radio frequency circuit and the second short-range communication core.

[0016] In one possible implementation, based on the aforementioned wireless headphones, if the first earpiece is for the left ear, it is usually worn on the left ear. If the terminal device is placed on the right side of the body (e.g., in a pocket on the right side), the radio frequency signal needs to pass through the body before being received by the first radio frequency antenna. This will weaken the received signal of the first radio frequency antenna, resulting in a weaker radio frequency signal received by the first radio frequency circuit. To address this issue, the second system chip further includes: a second radio frequency (RF) circuit; the second earphone further includes a second RF antenna; the second RF circuit is coupled to the second RF antenna; the second RF circuit is configured to receive a second RF signal transmitted by the terminal device from the second RF antenna and transmit the second RF signal to the second short-range communication core; the first short-range communication core and the second short-range communication core are connected via a second transmission line; the first short-range communication core is configured to determine a first signal quality parameter based on the first RF signal and transmit the first signal quality parameter to the second short-range communication core via the second transmission line; the second short-range communication core is configured to determine a second signal quality parameter based on the second RF signal and transmit the second signal quality parameter to the first short-range communication core via the second transmission line; the first short-range communication core is configured to determine that when the quality of the first RF signal is better than the quality of the second RF signal based on the first signal quality parameter and the second signal quality parameter, the first RF signal is demodulated into a first audio encoded data packet; the second short-range communication core is configured to determine that when the quality of the first RF signal is better than the quality of the second RF signal based on the first signal quality parameter and the second signal quality parameter, the first RF signal is demodulated into a second audio encoded data packet. Thus, when the quality of the first radio frequency signal is better than that of the second radio frequency signal, the first short-range communication core demodulates the first radio frequency signal into a first audio coded data packet, and the second short-range communication core demodulates the first radio frequency signal into a second audio coded data packet. In this case, the first earphone is the main earphone, and the second earphone is the secondary earphone. Conversely, if the second short-range communication core determines that the quality of the second radio frequency signal is better than that of the first radio frequency signal, then the first short-range communication core demodulates the second radio frequency signal into a first audio coded data packet, and the second short-range communication core demodulates the second radio frequency signal into a second audio coded data packet. In this case, the second earphone is the main earphone, and the first earphone is the secondary earphone.

[0017] In one possible implementation, to achieve playback synchronization between the first and second headphones, the first short-range communication core and the second short-range communication core are connected via a second transmission line. The first short-range communication core is further configured to send a first synchronization signal to the second short-range communication core via the second transmission line, and to send the first synchronization signal to the first digital signal processor. The second short-range communication core is specifically configured to send the first synchronization signal to the second digital signal processor. The first digital signal processor is specifically configured to play the first channel data according to the first synchronization signal and generate a first audio signal output to the speaker of the first headphones. The second digital signal processor is specifically configured to play the second channel data according to the first synchronization signal and generate a second audio signal output to the speaker of the second headphones.

[0018] In one possible implementation, the first transmission line includes a radio frequency coaxial cable.

[0019] In one possible implementation, the first system chip further includes a first codec; the second system chip further includes a second codec; a first digital signal processor is configured to play first channel data, generate a first audio signal output to the speaker of the first earphone, and send the first audio signal to the first codec; the first codec is configured to perform at least one or more of the following processing on the first audio signal: active noise cancellation (ANC) and equalization (EQ); the second digital signal processor is configured to play second channel data, generate a second audio signal output to the speaker of the second earphone, and send the second audio signal to the second codec; the second codec is configured to perform at least one or more of the following processing on the second audio signal: active noise cancellation (ANC) and equalization (EQ). In this possible implementation, performing one or more of the following processing on the channel data by the codec—active noise cancellation (ANC) and equalization (EQ)—can achieve better sound quality.

[0020] In one possible implementation, the first system chip includes: a first radio frequency (RF) circuit, a first short-range communication core, a first digital signal processor (DSP), and a first codec; wherein the first RF circuit is coupled to the first RF antenna; the second system chip includes: a second codec; the second codec is connected to the first DSP via the first transmission line; the first RF circuit is configured to receive the first RF signal from the first RF antenna and transmit the first RF signal to the first short-range communication core; the first short-range communication core is configured to demodulate the first RF signal into an audio encoded data packet and transmit the audio encoded data packet to the first DSP; the first DSP is configured to... The first digital signal processor (DSP) is configured to decode first channel data and second channel data; the first DSP is configured to play the first channel data, generate a first audio signal output to the speaker of the first earphone, and send the first audio signal to the first codec; the first DSP is configured to play the second channel data, generate a second audio signal output to the speaker of the second earphone, and send the second audio signal to the second codec via the first transmission line; the first codec is configured to perform at least one or more of the following processing on the first audio signal: active noise cancellation (ANC) and equalization (EQ); the second codec is configured to perform at least one or more of the following processing on the second audio signal: active noise cancellation (ANC) and equalization (EQ). In this scheme, signal transmission between the first earphone and the second earphone is mainly achieved through the first transmission line connected between the first DSP and the second codec.

[0021] In one possible implementation, based on the aforementioned wireless headphones, if the first earpiece is for the left ear, it is usually worn on the left ear. If the terminal device is placed on the right side of the body (e.g., in a pocket on the right side), the radio frequency signal needs to pass through the body before being received by the first radio frequency antenna. This will weaken the received signal of the first radio frequency antenna, resulting in a weaker radio frequency signal received by the first radio frequency circuit. To address this issue, the second system chip further includes: a second radio frequency (RF) circuit, a second short-range communication core, and a second digital signal processor; the second earphone further includes a second RF antenna; the second RF circuit couples to the second RF antenna; the first short-range communication core is configured to determine a first signal quality parameter based on the first RF signal; the second RF circuit is configured to receive a second RF signal sent by the terminal device from the second RF antenna and send the second RF signal to the second short-range communication core; the second short-range communication core is configured to determine a second signal quality parameter based on the second RF signal and send the second signal quality parameter to the first short-range communication core via the first transmission line; the first short-range communication core is configured to determine that, when the quality of the first RF signal is better than the quality of the second RF signal based on the first signal quality parameter and the second signal quality parameter, the first RF signal is demodulated into an audio encoded data packet. Thus, when the quality of the first radio frequency signal is better than that of the second radio frequency signal, the first short-range communication core demodulates the first radio frequency signal into an audio encoded data packet, and the first earphone becomes the main earphone, while the second earphone becomes the secondary earphone. Conversely, if the second short-range communication core determines that the quality of the second radio frequency signal is better than that of the first radio frequency signal, the second short-range communication core demodulates the second radio frequency signal into an audio encoded data packet, and the second earphone becomes the main earphone, while the first earphone becomes the secondary earphone. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a wireless headset provided for an embodiment of this application;

[0023] Figure 2 A schematic diagram of the structure of a wireless headset provided for another embodiment of this application;

[0024] Figure 3 A schematic diagram of the structure of a wireless headset provided in another embodiment of this application;

[0025] Figure 4 A schematic diagram of the structure of a wireless headset provided for another embodiment of this application;

[0026] Figure 5 A schematic diagram of the structure of a wireless headset provided for another embodiment of this application;

[0027] Figure 6 A schematic diagram of the structure of a wireless headset provided in another embodiment of this application;

[0028] Figure 7 A schematic diagram of the structure of a wireless headset provided for another embodiment of this application;

[0029] Figure 8 A schematic diagram of the structure of a wireless headset provided for another embodiment of this application;

[0030] Figure 9 This is a schematic diagram of the structure of a wireless headset provided for another embodiment of this application. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings. In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple. Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order. For example, the "first" in "first earphone" and the "second" in "second earphone" in the embodiments of this application are only used to distinguish different earphones. The descriptions of "first" and "second" appearing in the embodiments of this application are only for illustration and to distinguish the described objects, and have no order, nor do they indicate a special limitation on the number of devices in the embodiments of this application, and cannot constitute any limitation on the embodiments of this application.

[0032] It should be noted that, in this application, the terms "exemplary" or "for example" are used to indicate that something is being described as an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0033] Wireless headphones eliminate the limitations of connection cables to terminal devices (such as smartphones, laptops, tablets, etc.), and offer a good soundstage and wearing comfort, making them the preferred device for music lovers of all kinds. The terminal device in this application embodiment can be a mobile phone, tablet computer, desktop, laptop, handheld computer, laptop, ultra-mobile personal computer (UMPC), netbook, as well as cellular phones, personal digital assistants (PDAs), augmented reality (AR) / virtual reality (VR) devices, and other electronic devices. This application embodiment does not impose special limitations on the specific form of the terminal device; the following embodiments use a mobile phone as an example for illustration.

[0034] like Figure 1 The diagram shows a Bluetooth over-ear headphone 100. The structure of the over-ear wireless headphone 100 includes earphones 1 and 2, which are connected by a headband 3 (e.g., which can be...). Figure 1 The arc-shaped support frame shown in the image is connected. In some examples, such as... Figure 2 As shown, based on Figure 1 The illustrated structure of the wireless over-ear headphones 100 includes a system-on-chip (SOC) 12. The SOC 12 may include a radio frequency chip, a Bluetooth chip, a digital signal processor, a codec (e.g., an active noise cancellation codec (ANC codec)), etc. The SOC 12 is typically located in one of the left or right earpieces. Figure 2 In the earphone 1 shown, the SOC 12 can communicate with a terminal device (e.g., [unclear] via the radio frequency antenna 11). Figure 2The device connects to a mobile phone 200 and receives audio signals transmitted from the terminal device. Signal transmission occurs between the left and right earbuds via a transmission line 31 located in the headband 3. For example, if the SOC 12 is located in the left earbud 1, after the SOC 12 receives the audio signal from the mobile phone 200, it plays the audio signal from the left earbud through the speaker 13 of the left earbud 1, and transmits the audio signal from the right earbud to the right earbud 2 via the transmission line 31 for playback through the speaker 23. Because this type of wireless headset uses an SOC housed in one earbud, its computing power and available interfaces are limited. Furthermore, the headband 3 requires multiple transmission lines (e.g., audio lines, power lines, and other signal lines, potentially more than 20), which are susceptible to breakage and make folding and storage difficult.

[0035] To address the aforementioned issues, this application also provides a true wireless stereo (TWS) over-ear wireless headset, which allows for the separate placement of a SOC and an RF antenna in each of the two earpieces. For example, as... Figure 3 The diagram shows a wireless over-ear headphone 100, comprising headphone 1 and headphone 2. Headphone 1 includes a System-on-a-Chip (SOC) 12 and a radio frequency antenna 11 coupled to the SOC 12; headphone 2 includes a System-on-a-Chip (SOC) 22 and a radio frequency antenna 21 coupled to the SOC 22. Optionally, headphone 1 may further include a speaker 13 and headphone 2 may further include a speaker 23, with speaker 13 in headphone 1 coupled to the SOC 12 and speaker 23 in headphone 2 coupled to the SOC 22. Figure 3 The wireless headphones shown have two communication methods between the left and right earpieces: relay mode or monitoring mode. In relay mode, the SOC12 of the main earpiece (e.g., earpiece 1) establishes a Bluetooth connection with the mobile phone 200, receives audio data transmitted over the air by the mobile phone 200, and wirelessly relays the audio data to the SOC22 of the secondary earpiece (e.g., earpiece 2). In monitoring mode, the SOC12 of the main earpiece establishes a Bluetooth connection with the mobile phone 200, receives audio data transmitted over the air by the mobile phone 200, and the secondary earpiece listens for the audio data transmitted over the air. If the secondary earpiece does not receive audio data, the SOC12 of the main earpiece wirelessly relays the audio data to the SOC22 of the secondary earpiece. Therefore, regardless of whether it is relay mode or monitoring mode, the SOC12 of the main earpiece will spend some time communicating with the SOC22 of the secondary earpiece, and cannot transmit data with the mobile phone 200 during this time, resulting in limited actual bandwidth between the headphones and the mobile phone. In particular, the higher the duty cycle of wireless transmission between the main and secondary earbuds, the greater the difficulty in supporting high-definition music playback.

[0036] To avoid bandwidth limitations between the headphones and the mobile phone and improve user experience, this application also provides a wireless over-ear headphone, combined with... Figure 4 As shown, the wireless headset 100 includes headset 1, headset 2, and a first transmission line 31. Headset 1 includes a system-on-a-chip (SOC) 12 and a radio frequency (RF) antenna 11, with SOC 12 coupled to the RF antenna 11. Headset 2 includes a system-on-a-chip (SOC) 22. SOC 12 and SOC 22 are connected via the first transmission line 31. SOC 12 is configured to wirelessly connect with a mobile phone 200 via the RF antenna 11 and receive a first RF signal sent by the mobile phone 200. SOC 12 is also configured to transmit a transmission signal generated based on the first RF signal to SOC 22 via the first transmission line 31.

[0037] The aforementioned earphone 1 can be either the left or right earphone. When earphone 1 is the left earphone, earphone 2 is the right earphone. When earphone 1 is the right earphone, earphone 2 is the left earphone. Exemplarily, the aforementioned first transmission line 31 can be disposed within the mechanical structure (e.g., headband 3) connecting earphone 1 and earphone 2. For example, the over-ear wireless headphones may also include an arc-shaped support frame, through which earphone 1 and earphone 2 are connected, and the first transmission line 31 between SOC12 and SOC22 can be disposed within this arc-shaped support frame. The specific location of the first transmission line 31 between SOC12 and SOC22 is not limited in this embodiment; it is merely an illustrative example.

[0038] The first transmission line 31 mentioned above can be a universal asynchronous receiver / transmitter (UART) bus, an inter-integrated circuit sound (I2S) bus, an inter-integrated circuit bus (I2C), an RF coaxial cable, etc. This application embodiment does not limit the specific type of the first transmission line. Furthermore, the earphone 1 may also include a speaker 13, which is coupled to the SOC 12. The earphone 2 may also include a speaker 23, which is coupled to the SOC 22.

[0039] It should be noted that the transmitted signal may include the first radio frequency signal itself or a signal generated based on the first radio frequency signal. Specifically, the transmitted signal may include channel data transmitted between digital signal processors (DSPs), audio encoded data packets, synchronization signals, signal quality parameters of radio frequency signals transmitted between short-range communication cores, radio frequency signals transmitted between radio frequency circuits and short-range communication cores, audio signals transmitted between DSPs and codecs, etc. Please refer to the detailed description of the examples below.

[0040] In this way, when SOC12 wirelessly connects to the terminal device via RF antenna 11 and receives the first RF signal sent by the terminal device, SOC12 can transmit the transmission signal generated based on the first RF signal to SOC22 via the first transmission line 31 in a wired manner. This avoids wireless communication between the two earpieces, thus avoiding bandwidth limitations between the earpieces and the mobile phone. Furthermore, since earpiece 2 also contains SOC22, SOC22 can process the transmission signal transmitted by SOC12 in earpiece 1, avoiding the need for all RF signals to be processed by one earpiece, thus preventing computational limitations.

[0041] Specifically, in the first application scenario, refer to Figure 5 As shown, SOC 12 includes: a radio frequency (RF) circuit 121, a short-range communication core 122, and a digital signal processor (DSP) 123; wherein, the RF circuit 121 is coupled to an RF antenna 11; SOC 22 includes: a DSP 223; DSP 123 and DSP 223 are connected via a first transmission line 31. The RF circuit 121 is configured to receive a first RF signal from the RF antenna 11 and transmit the first RF signal to the short-range communication core 122; the short-range communication core 122 is configured to demodulate the first RF signal into an audio encoded data packet and transmit the audio encoded data packet to the DSP 123; the DSP 123 is configured to decode first channel data and second channel data in the audio encoded data packet and transmit the second channel data to the DSP 223 via the first transmission line 31. The first transmission line 31 can be an I2S bus.

[0042] In the following examples, the short-range communication core can be, but is not limited to, Bluetooth chips, ZigBee chips, near field communication (NFC) chips, or other chips derived in the future for short-range wireless communication. The embodiments of this application do not limit the specific type of short-range wireless communication chip. The following embodiments use Bluetooth chips as an example for illustration.

[0043] Specifically, in combination Figure 4 and Figure 5 As shown, when the mobile phone 200 sends a first radio frequency signal carrying audio data to the radio frequency antenna 11, the radio frequency circuit 121 is mainly used to receive the first radio frequency signal from the radio frequency antenna 11; then, the Bluetooth chip 122 demodulates the first radio frequency signal into an audio encoded data packet (e.g., a base transport header (BTH packet) of subband coding or advanced audio coding (SBC / AAC); after that, the DSP 123 performs SBC / AAC decoding on the audio encoded data packet to generate a pulse code modulation (PCM) bitstream, which contains first channel data and second channel data, wherein the first channel data and the second channel data are respectively used to play in the speakers of the earphone 1 or earphone 2.

[0044] For example, if the first channel data is left channel data, then DSP123 plays the first channel data and outputs a first audio signal to speaker 13 of headphone 1, driving speaker 13; if the second channel data is right channel data, then DSP223 plays the second channel data and outputs a second audio signal to speaker 23 of headphone 2, driving speaker 23. It should be noted that, to improve the playback sound quality, DSP123 can also perform one or more of the following processing on the first audio signal: active noise cancellation (ANC) and equalization (EQ) before outputting to speaker 13; similarly, DSP223 can also perform one or more of the following processing on the second audio signal: active noise cancellation (ANC) and equalization (EQ) before outputting to speaker 23. The aforementioned active noise cancellation (ANC) and equalization (EQ) functions can be integrated into the DSP or implemented by a separate codec. For example, a codec can be coupled between the DSP and the speaker, as described above. Figure 5 As shown, DSP123 is coupled to speaker 13 via codec 124, and DSP223 is coupled to speaker 23 via codec 224. Codec 124 and codec 224 can be active noise cancellation (ANC) codecs.

[0045] Furthermore, in some examples of the first scenario, DSP123 typically plays the first channel data based on the first clock signal generated by the crystal oscillator on SOC12 in earphone 1; while DSP223 plays the second channel data based on the second clock signal generated by the crystal oscillator on SOC22 in earphone 2. Since the clock signals provided by the crystal oscillators in earphone 1 and earphone 2 typically deviate by 20-80µs, the generated first audio signal and second audio signal also deviate by 20-80µs, which is perceptible to audiophiles and results in a poor user experience. To achieve playback synchronization between earphone 1 and earphone 2, refer to... Figure 6 As shown, SOC 22 also includes a short-range communication core 222; wherein the short-range communication core 222 can be connected to the short-range communication core 122 via a second transmission line 32, for example, the second transmission line 32 can be a UART bus. The short-range communication core 122 is also configured to send a first synchronization signal to the short-range communication core 222 via the second transmission line 32, and send the first synchronization signal to the DSP 123; it should be noted that the first synchronization signal can be a clock signal provided by the crystal oscillator in SOC 12. DSP 123 is specifically configured to play first channel data according to the first synchronization signal and generate a first audio signal output to the speaker 13 of the headphones 1; DSP 223 is specifically configured to play second channel data according to the first synchronization signal and generate a second audio signal output to the speaker 23 of the headphones 2. In some examples, it should be noted that since DSP 123 and DSP 223 are connected via the first transmission line 31, the first synchronization signal can also be obtained by DSP 123 from the crystal oscillator in SOC 12 and transmitted to DSP 223 via the first transmission line 31. In some examples, the first synchronization signal can also be transmitted using a separate transmission line, such as directly through the general purpose input / output (GPIO) bus between the ports provided by SOC1 and SOC2.

[0046] Based on the aforementioned wireless headphones, when earpiece 1 is for the left ear, it is typically worn on the left ear. If the mobile phone 200 is placed on the right side of the body (e.g., in a right-side pocket), the radio frequency signal needs to pass through the body before being received by the radio frequency antenna 11. This weakens the received signal of the radio frequency antenna 11, resulting in a weaker radio frequency signal received by the radio frequency circuit 121. To solve this problem, in some examples, [the following is a separate, unrelated sentence:] ... Figure 4 and Figure 6As shown, SOC 22 also includes: radio frequency circuit 221 and short-range communication core 222; earphone 2 also includes radio frequency antenna 21; radio frequency circuit 221 is coupled to radio frequency antenna 21; short-range communication core 222 can be connected to short-range communication core 122 through a second transmission line 32, for example, the second transmission line 32 can be a UART bus. Specifically, short-range communication core 122 is also configured to determine a first signal quality parameter based on a first radio frequency signal; radio frequency circuit 221 is configured to receive a second radio frequency signal sent by the terminal device from radio frequency antenna 21, and send the second radio frequency signal to short-range communication core 222; wherein the first radio frequency signal and the second radio frequency signal can be the same radio frequency signal received by earphone 1 and earphone 2 for the terminal device. Short-range communication core 222 is configured to determine a second signal quality parameter based on the second radio frequency signal, and transmit the second signal quality parameter to short-range communication core 122 via second transmission line 32. Short-range communication core 122 is configured to, when determining that the quality of the first radio frequency signal is superior to the quality of the second radio frequency signal based on the first and second signal quality parameters, determine to demodulate the first radio frequency signal into an audio encoded data packet. Similarly, short-range communication core 122 can also transmit the first signal quality parameter to short-range communication core 222 via second transmission line 32. When short-range communication core 222 determines that the quality of the first radio frequency signal is superior to the quality of the second radio frequency signal, DSP 223 will subsequently receive the second channel data transmitted by DSP 123. Thus, when the short-range communication core 122 demodulates the first radio frequency signal into audio encoded data packets using the above method, earphone 1 becomes the primary earphone and earphone 2 becomes the secondary earphone. Conversely, if the short-range communication core 222 determines that the quality of the second radio frequency signal is better than that of the first radio frequency signal, then the short-range communication core 222 demodulates the second radio frequency signal into audio encoded data packets, and earphone 2 becomes the primary earphone and earphone 1 becomes the secondary earphone. Of course, when earphone 2 is the primary earphone, the clock signal of the crystal oscillator in the SOC22 can also be obtained by the short-range communication core 122 or DSP223 of the SOC22 as a synchronization signal for earphone 1 and earphone 2 to play their respective channel data. In addition, the aforementioned first or second signal quality parameters include one or more of RSRP, RSRQ, RSSI, PER, and SINR.

[0047] Furthermore, it should be noted that earphone 1 and / or earphone 2 may also include a microphone and sensors connected to the SOC; specific sensors may be proximity sensors, touch sensors, etc. The microphone and sensors may be connected to the DSP in earphone 1 and / or earphone 2.

[0048] In the second application scenario, refer to Figure 7As shown, the system chip SOC12 includes: radio frequency circuit 121, short-range communication core 122 and digital signal processor DSP123; SOC22 includes: short-range communication core 222 and DSP223; wherein the short-range communication core 222 can be connected to the short-range communication core 122 through a first transmission line 31, for example, the first transmission line 31 can be a UART bus.

[0049] Radio frequency circuit 121 is configured to receive a first radio frequency signal from radio frequency antenna 11 and transmit the first radio frequency signal to short-range communication core 122; short-range communication core 122 is configured to demodulate the first radio frequency signal into audio encoded data packets and transmit the audio encoded data packets to DSP 123, and transmit the audio encoded data packets to short-range communication core 222 via first transmission line 31; short-range communication core 222 is configured to transmit the audio encoded data packets to DSP 223; DSP 123 is configured to decode first channel data in the audio encoded data packets; DSP 223 is configured to decode second channel data in the audio encoded data packets.

[0050] The short-range communication core can be, but is not limited to, Bluetooth chips, ZigBee chips, NFC chips, or other chips derived in the future for short-range wireless communication. The embodiments of this application do not limit the specific type of short-range wireless communication chip. The following embodiments use Bluetooth chips as an example for illustration.

[0051] Specifically, in combination Figure 4 and Figure 7As shown, after the mobile phone 200 sends a first radio frequency signal carrying audio data to the radio frequency antenna 11, the radio frequency circuit 121 is mainly used to receive the first radio frequency signal from the radio frequency antenna 11; then, the Bluetooth chip 122 demodulates the first radio frequency signal into an audio encoded data packet (e.g., a base transport header (BTH packet) of subband coding or advanced audio coding (SBC / AAC); then, the Bluetooth chip 122 sends the audio encoded data packet to the Bluetooth chip 222 through the first transmission line 31; then, the DSP 123 performs SBC / AAC decoding on the audio encoded data packet to generate a pulse code modulation (PCM) bitstream, which contains the first channel data; the DSP 223 performs SBC / AAC decoding on the audio encoded data packet to generate a pulse code modulation (PCM) bitstream, which contains the second channel data, wherein the first channel data and the second channel data are respectively used for playback in the speakers of the earphone 1 or earphone 2.

[0052] For example, if the first channel data is left channel data, then DSP123 plays the first channel data and outputs a first audio signal to speaker 13 of headphone 1, driving speaker 13; if the second channel data is right channel data, then DSP223 plays the second channel data and outputs a second audio signal to speaker 23 of headphone 2, driving speaker 23. It should be noted that DSP123 can also perform one or more of the following processing on the first audio signal: active noise cancellation (ANC) and equalization (EQ) before outputting to speaker 13; similarly, DSP223 can also perform one or more of the following processing on the second audio signal: active noise cancellation (ANC) and equalization (EQ) before outputting to speaker 23. The aforementioned active noise cancellation (ANC) and equalization (EQ) functions can be integrated into the DSP or implemented by a separate codec. For example, a codec can be coupled between the DSP and the speaker, as described above. Figure 7 As shown, DSP123 is coupled to speaker 13 via codec 124, and DSP223 is coupled to speaker 23 via codec 224. Codec 124 and codec 224 can be active noise cancellation (ANC) codecs.

[0053] Furthermore, in some examples of the second scenario, to achieve playback synchronization between headphones 1 and 2, the short-range communication core 122 is also configured to send a first synchronization signal to the short-range communication core 222 via the first transmission line 31, and then send the first synchronization signal to the DSP 123; the short-range communication core 222 is specifically configured to send the first synchronization signal to the DSP 223; it should be noted that the first synchronization signal can be a clock signal provided by the crystal oscillator in the SOC 12. The DSP 123 is specifically configured to play the first channel data according to the first synchronization signal and generate a first audio signal output to the speaker 13 of headphones 1; the DSP 223 is specifically configured to play the second channel data according to the first synchronization signal and generate a second audio signal output to the speaker 23 of headphones 2. In some examples, the first synchronization signal can also be transmitted using a separate transmission line, for example, directly through the general purpose input / output (GPIO) bus between the ports provided by SOC 1 and SOC 2.

[0054] Based on the aforementioned wireless headphones, when earpiece 1 is for the left ear, it is typically worn on the left ear. If the mobile phone 200 is placed on the right side of the body (e.g., in a right-side pocket), the radio frequency signal needs to pass through the body before being received by the radio frequency antenna 11. This weakens the radio frequency antenna 11, resulting in a weaker radio frequency signal received by the radio frequency circuit 121. To solve this problem, in some examples, [the following is a separate, unrelated sentence:] ... Figure 4 and Figure 7 As shown, SOC22 also includes: radio frequency circuit 221; the earphone 2 also includes radio frequency antenna 21; radio frequency circuit 221 couples radio frequency antenna 21.

[0055] Specifically, the short-range communication core 122 is also configured to determine a first signal quality parameter based on the first radio frequency signal; the radio frequency circuit 221 is configured to receive a second radio frequency signal sent by the terminal device from the radio frequency antenna 21 and send the second radio frequency signal to the short-range communication core 222; wherein the first radio frequency signal and the second radio frequency signal can be the received signals of the same radio frequency signal sent by the earphones 1 and 2 to the terminal device. The short-range communication core 222 is configured to determine a second signal quality parameter based on the second radio frequency signal and send the second signal quality parameter to the short-range communication core 122 through the first transmission line 31; the short-range communication core 122 is configured to determine that when it determines that the quality of the first radio frequency signal is better than the quality of the second radio frequency signal based on the first signal quality parameter and the second signal quality parameter, it will demodulate the first radio frequency signal into an audio encoded data packet. Similarly, the short-range communication core 122 can also transmit the first signal quality parameter to the short-range communication core 222 through the first transmission line 31. When the short-range communication core 222 determines that the quality of the first radio frequency signal is better than the quality of the second radio frequency signal, the DSP 223 will subsequently receive the second channel data sent by the DSP 123. Thus, when the short-range communication core 122 demodulates the first radio frequency signal into an audio encoded data packet using the above method, earphone 1 is the main earphone and earphone 2 is the secondary earphone; conversely, if the short-range communication core 222 determines that the quality of the second radio frequency signal is better than that of the first radio frequency signal, then the short-range communication core 222 demodulates the second radio frequency signal into an audio encoded data packet, in which case earphone 2 is the main earphone and earphone 1 is the secondary earphone.

[0056] In the third application scenario, refer to Figure 8 As shown, System-on-Chips (SOC) 12 includes: a radio frequency (RF) circuit 121, a short-range communication core 122, and a digital signal processor (DSP) 123; System-on-Chips (SOC) 22 includes: a short-range communication core 222 and a DSP 223; wherein, the RF circuit 221 is coupled to an RF antenna 21. The RF circuit 121 can be connected to the short-range communication core 222 via a first transmission line 31, for example, the first transmission line 31 can be an RF coaxial cable.

[0057] Radio frequency circuit 121 is configured to receive a first radio frequency signal from radio frequency antenna 11 and transmit the first radio frequency signal to short-range communication core 122, and to transmit the first radio frequency signal from first transmission line 31 to short-range communication core 222; short-range communication core 122 is configured to demodulate the first radio frequency signal into a first audio encoded data packet; digital signal processor DSP 123 is configured to decode first channel data from the first audio encoded data packet; short-range communication core 222 is configured to demodulate the first radio frequency signal into a second audio encoded data packet and transmit the second audio encoded data packet to DSP 223; DSP 223 is configured to decode second channel data from the second audio encoded data packet.

[0058] In the following examples, the short-range communication core can be, but is not limited to, Bluetooth chips, ZigBee chips, NFC chips, or other chips derived in the future for short-range wireless communication. The embodiments of this application do not limit the specific type of short-range wireless communication chip. The following embodiments use Bluetooth chips as an example for illustration.

[0059] Specifically, in combination Figure 4 and Figure 8 As shown, when the mobile phone 200 sends a first radio frequency signal carrying audio data to the radio frequency antenna 11, the radio frequency circuit 121 is mainly used to receive the first radio frequency signal from the radio frequency antenna 11; the radio frequency circuit 121 sends the first radio frequency signal to the Bluetooth chip 222 through the first transmission line 31. Then, the Bluetooth chip 122 demodulates the first radio frequency signal into a first audio encoded data packet (e.g., a BTH packet of SBC / AAC); the Bluetooth chip 222 demodulates the first radio frequency signal into a second audio encoded data packet (e.g., a BTH packet of SBC / AAC); wherein, the first audio encoded data packet and the second audio data packet are respectively used for playback in the speaker of the earphone 1 or the earphone 2. Afterwards, the DSP 123 performs SBC / AAC decoding on the first audio encoded data packet to generate a first PCM bitstream, which contains first channel data; the DSP 223 performs SBC / AAC decoding on the second audio encoded data packet to generate a second PCM bitstream, which contains second channel data.

[0060] For example, if the first channel data is left channel data, then DSP123 plays the first channel data and outputs a first audio signal to speaker 13 of headphone 1, driving speaker 13; if the second channel data is right channel data, then DSP223 plays the second channel data and outputs a second audio signal to speaker 23 of headphone 2, driving speaker 23. It should be noted that DSP123 can also perform one or more of the following processing on the first audio signal: active noise cancellation (ANC) and equalization (EQ) before outputting to speaker 13; similarly, DSP223 can also perform one or more of the following processing on the second audio signal: active noise cancellation (ANC) and equalization (EQ) before outputting to speaker 23. The aforementioned active noise cancellation (ANC) and equalization (EQ) functions can be integrated into the DSP or implemented by a separate codec. For example, a codec can be coupled between the DSP and the speaker, as described above. Figure 8 As shown, DSP123 is coupled to speaker 13 via codec 124, and DSP223 is coupled to speaker 23 via codec 224. Codec 124 and codec 224 can be active noise cancellation (ANC) codecs.

[0061] Furthermore, in some examples of the third scenario, to achieve playback synchronization between headphones 1 and 2, short-range communication core 122 and short-range communication core 222 are connected via a second transmission line 32; this second transmission line can be a UART bus; short-range communication core 122 is also configured to send a first synchronization signal to short-range communication core 222 via the second transmission line 32, and send the first synchronization signal to DSP 123; it should be noted that the first synchronization signal can be a clock signal provided by the crystal oscillator in SOC 12. DSP 123 is specifically configured to play first channel data according to the first synchronization signal and generate a first audio signal output to speaker 13 of headphones 1; DSP 223 is specifically configured to play second channel data according to the first synchronization signal and generate a second audio signal output to speaker 23 of headphones 2. In some examples, the first synchronization signal can also be transmitted using a separate transmission line, for example, directly through the input / output (GPIO) bus between the ports provided by SOC 1 and SOC 2, or through a transmission line (e.g., an I2S bus) set between DSP 123 and DSP 223.

[0062] Based on the aforementioned wireless headphones, when earpiece 1 is for the left ear, it is typically worn on the left ear. If the mobile phone 200 is placed on the right side of the body (e.g., in a right-side pocket), the radio frequency signal needs to pass through the body before being received by the radio frequency antenna 11. This weakens the radio frequency antenna 11, resulting in a weaker radio frequency signal received by the radio frequency circuit 121. To solve this problem, in some examples, [the following is a separate, unrelated sentence:] ... Figure 4 and Figure 8As shown, SOC 22 also includes: radio frequency circuit 221; earphone 2 also includes radio frequency antenna 21; radio frequency circuit 221 couples radio frequency antenna 21. Short-range communication core 122 is connected to short-range communication core 222 via second transmission line 32. Specifically, radio frequency circuit 221 is configured to receive a second radio frequency signal sent by terminal device from radio frequency antenna 21 and send the second radio frequency signal to short-range communication core 222; short-range communication core 122 is also configured to determine a first signal quality parameter based on the first radio frequency signal and send the first signal quality parameter to short-range communication core 222 via second transmission line 32; wherein the first radio frequency signal and the second radio frequency signal can be the same radio frequency signal received by earphone 1 and earphone 2 for the terminal device. The short-range communication core 222 is configured to determine a second signal quality parameter based on a second radio frequency signal; the short-range communication core 222 is configured to send the second signal quality parameter to the short-range communication core 122 via the second transmission line 32; the short-range communication core 122 is configured to determine, when it is determined based on the first signal quality parameter and the second signal quality parameter that the quality of the first radio frequency signal is better than the quality of the second radio frequency signal, to demodulate the first radio frequency signal into a first audio coded data packet; the short-range communication core 222 is configured to determine, when it is determined based on the first signal quality parameter and the second signal quality parameter that the quality of the first radio frequency signal is better than the quality of the second radio frequency signal, to demodulate the first radio frequency signal into a second audio coded data packet. In this case, earphone 1 is the primary earphone and earphone 2 is the secondary earphone. Conversely, if the short-range communication core 122 and the short-range communication core 222 determine that the quality of the second radio frequency signal is better than the quality of the first radio frequency signal, then the short-range communication core 221 demodulates the first audio encoded data packet in the second radio frequency signal, and the short-range communication core 222 demodulates the second audio encoded data packet in the second radio frequency signal, then earphone 2 is the primary earphone and earphone 1 is the secondary earphone. In this scenario, a third transmission line 33 is connected between the short-range communication core 122 and the radio frequency circuit 221. The radio frequency circuit 221 can transmit the second radio frequency signal to the short-range communication core 122 through the third transmission line 33, which can be a coaxial radio frequency line.

[0063] In the fourth application scenario, refer to Figure 9As shown, SOC 12 includes: a radio frequency (RF) circuit 121, a short-range communication core 122, a digital signal processor (DSP) 123, and a first codec 124; wherein the RF circuit 121 is coupled to the RF antenna 11; SOC 22 includes: a codec 224; the DSP 123 and the codec 224 are connected via a first transmission line 31, which can be an I2S bus. The RF circuit 121 is configured to receive a first RF signal from the RF antenna 11 and transmit the first RF signal to the short-range communication core 122; the short-range communication core 122 is configured to demodulate the first RF signal into audio encoded data packets and transmit the audio encoded data packets to the DSP 123; the DSP 123 is configured to decode first channel data and second channel data in the audio encoded data packets; the DSP 123 is configured to play the first channel data and generate output. The first audio signal is sent to the speaker of the first earphone and then to the codec 124; the DSP 123 is configured to play the second channel data, generate a second audio signal output to the speaker of the second earphone, and send the second audio signal to the codec 224 via the first transmission line 31; the codec 124 is configured to perform at least one or more of the following processing on the first audio signal: active noise cancellation (ANC) and equalization (EQ); the codec 224 is configured to perform at least one or more of the following processing on the second audio signal: active noise cancellation (ANC) and equalization (EQ).

[0064] Specifically, in combination Figure 9As shown, after the mobile phone 200 sends a first radio frequency signal carrying audio data to the radio frequency antenna 11, the radio frequency circuit 121 is mainly used to receive the first radio frequency signal from the radio frequency antenna 11; then, the Bluetooth chip 122 demodulates the first radio frequency signal into audio encoded data packets (e.g., base transport header (BTH packet) of subband coding / advanced audio coding (SBC / AAC); afterwards, the DSP 123 performs SBC / AAC decoding on the audio encoded data packets to generate pulse code modulation (PMC). The PCM (Programmable Code Modulation) stream contains first channel data and second channel data, which are used for playback in the speakers of headphones 1 and 2, respectively. For example, if the first channel data is left channel data, DSP 123 plays the first channel data to generate first audio data. After being processed by codec 124, the first audio data is output to speaker 13 of headphones 1 to drive the speaker 13. If the second channel data is right channel data, DSP 123 plays the second channel data to generate second audio data. After being processed by codec 224, the second audio data is output to speaker 23 of headphones 2 to drive the speaker 23.

[0065] Based on the aforementioned wireless headphones, when earpiece 1 is for the left ear, it is typically worn on the left ear. If the mobile phone 200 is placed on the right side of the body (e.g., in a right-side pocket), the radio frequency signal needs to pass through the body before being received by the radio frequency antenna 11. This weakens the received signal of the radio frequency antenna 11, resulting in a weaker radio frequency signal received by the radio frequency circuit 121. To solve this problem, in some examples, [the following is a separate, unrelated sentence:] ... Figure 9As shown, SOC 22 also includes: RF circuit 221, short-range communication core 222, and DSP 223; earphone 2 also includes RF antenna 21; RF circuit 221 is coupled to RF antenna 21; short-range communication core 222 can be connected to short-range communication core 122 via a second transmission line 32, for example, the second transmission line 32 can be a UART bus. Specifically, short-range communication core 122 is also configured to determine a first signal quality parameter based on a first RF signal; RF circuit 221 is configured to receive a second RF signal sent by the terminal device from RF antenna 21 and send the second RF signal to short-range communication core 222; wherein the first RF signal and the second RF signal can be the same RF signal received by earphone 1 and earphone 2 for the terminal device. Short-range communication core 222 is configured to determine a second signal quality parameter based on the second radio frequency signal, and transmit the second signal quality parameter to short-range communication core 122 via second transmission line 32. Short-range communication core 122 is configured to determine, when it is determined that the quality of the first radio frequency signal is better than the quality of the second radio frequency signal based on the first and second signal quality parameters, to demodulate the first radio frequency signal into an audio encoded data packet. Similarly, short-range communication core 122 can also transmit the first signal quality parameter to short-range communication core 222 via second transmission line 32. In this case, when short-range communication core 222 determines that the quality of the first radio frequency signal is better than the quality of the second radio frequency signal, codec 224 will subsequently receive the second audio data sent by DSP 123. Thus, when the short-range communication core 122 demodulates the first radio frequency signal into an audio encoded data packet using the above method, earphone 1 becomes the primary earphone and earphone 2 becomes the secondary earphone. Conversely, if the short-range communication core 222 determines that the quality of the second radio frequency signal is better than that of the first radio frequency signal, then the short-range communication core 222 demodulates the second radio frequency signal into an audio encoded data packet, and earphone 2 becomes the primary earphone and earphone 1 becomes the secondary earphone. Similarly, the DSP 223 is connected to the codec 124 via the third transmission line 33 (e.g., an I2S bus). The DSP 223 decodes the audio encoded data packet into two-channel data and sends the audio data played by the corresponding channel data of earphone 1 to the codec 124 for processing via the third transmission line 33.

[0066] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A head-wearable wireless earphone, characterized by, The head-wearing wireless earphone comprises a first earphone and a second earphone; The first earphone comprises a first system chip and a first radio frequency antenna, and the first system chip is coupled with the first radio frequency antenna; The second earphone comprises a second system chip; The first system chip is connected with the second system chip through a first transmission line; The first system chip is configured to be wirelessly connected with a terminal device through the first radio frequency antenna, and receive a first radio frequency signal sent by the terminal device; The first system chip is configured to transmit a transmission signal generated according to the first radio frequency signal to the second system chip through the first transmission line; The first system chip and the second system chip are configured to demodulate the first radio frequency signal into an audio coding data packet, decode channel data in the audio coding data packet, play the channel data, and generate an audio signal output to the first earphone and the second earphone; The transmission signal comprises the first radio frequency signal, the audio coding data packet or the channel data.

2. The head-wearing wireless earphone of claim 1, wherein The first system chip comprises a first radio frequency circuit, a first short-distance communication core and a first digital signal processor; and the first radio frequency circuit is coupled with the first radio frequency antenna; The second system chip comprises a second digital signal processor; and the first digital signal processor is connected with the second digital signal processor through the first transmission line; The first radio frequency circuit is configured to receive the first radio frequency signal from the first radio frequency antenna, and send the first radio frequency signal to the first short-distance communication core; The first short-distance communication core is configured to demodulate the first radio frequency signal into an audio coding data packet, and send the audio coding data packet to the first digital signal processor; The first digital signal processor is configured to decode first channel data and second channel data in the audio coding data packet, and transmit the second channel data to the second digital signal processor through the first transmission line.

3. The head-wearing wireless earphone of claim 2, wherein The second system chip further comprises a second short-distance communication core; and the first short-distance communication core is connected with the second short-distance communication core through a second transmission line; The first short-distance communication core is further configured to send a first synchronization signal to the second short-distance communication core through the second transmission line, and send the first synchronization signal to the first digital signal processor; The first digital signal processor is specifically configured to play the first channel data according to the first synchronization signal, and generate a first audio signal output to a loudspeaker of the first earphone; The second digital signal processor is specifically configured to play the second channel data according to the first synchronization signal, and generate a second audio signal output to a loudspeaker of the second earphone.

4. The head-wearing wireless earphone of claim 2, wherein The second system chip further comprises a second radio frequency circuit and a second short-distance communication core; the second earphone further comprises a second radio frequency antenna; the second radio frequency circuit is coupled with the second radio frequency antenna; the first short-distance communication core is connected with the second short-distance communication core through a second transmission line; The first short-distance communication core is further configured to determine a first signal quality parameter according to the first radio frequency signal; The second radio frequency circuit is configured to receive a second radio frequency signal transmitted by the terminal device from the second radio frequency antenna, and transmit the second radio frequency signal to the second short-distance communication core; The second short-distance communication core is configured to determine a second signal quality parameter according to the second radio frequency signal, and transmit the second signal quality parameter to the first short-distance communication core through the second transmission line; The first short-distance communication core is configured to determine that the first radio frequency signal has a better quality than the second radio frequency signal according to the first signal quality parameter and the second signal quality parameter, and determine to demodulate the first radio frequency signal into an audio coded data packet.

5. The head-wearing wireless earphone of claim 3 or 4, wherein The second transmission line comprises a universal asynchronous receiver-transmitter (UART) bus.

6. The wireless headset of any one of claims 1-4, wherein, The first transmission line comprises an integrated circuit bus built-in audio (I2S) bus.

7. The head-wearing wireless earphone of claim 1, wherein The first system chip comprises a first radio frequency circuit, a first short-distance communication core, and a first digital signal processor; The second system chip comprises a second short-distance communication core and a second digital signal processor; the first short-distance communication core is connected with the second short-distance communication core through the first transmission line; The first radio frequency circuit is configured to receive the first radio frequency signal from the first radio frequency antenna, and transmit the first radio frequency signal to the first short-distance communication core; The first short-distance communication core is configured to demodulate the first radio frequency signal into an audio coded data packet, transmit the audio coded data packet to the first digital signal processor, and transmit the audio coded data packet to the second short-distance communication core through the first transmission line; The second short-distance communication core is configured to transmit the audio coded data packet to the second digital signal processor; The first digital signal processor is configured to decode first channel data in the audio coded data packet; The second digital signal processor is configured to decode second channel data in the audio coded data packet.

8. The head-wearing wireless earphone of claim 7, wherein The first short-distance communication core is further configured to transmit a first synchronization signal to the second short-distance communication core through the first transmission line, and transmit the first synchronization signal to the first digital signal processor; The second short-distance communication core is specifically configured to transmit the first synchronization signal to the second digital signal processor; The first digital signal processor is specifically configured to play the first channel data according to the first synchronization signal, and generate a first audio signal output to a speaker of the first earphone; The second digital signal processor is specifically configured to play the second channel data according to the first synchronization signal, and generate a second audio signal output to a speaker of the second earphone. 9.The wireless headset of claim 7, wherein The second system chip further comprises a second radio frequency circuit, and the second earphone further comprises a second radio frequency antenna, and the second radio frequency circuit is coupled to the second radio frequency antenna; The first short distance communication core is configured to determine a first signal quality parameter according to the first radio frequency signal; The second radio frequency circuit is configured to receive a second radio frequency signal transmitted by the terminal device from the second radio frequency antenna, and transmit the second radio frequency signal to the second short distance communication core; The second short distance communication core is configured to determine a second signal quality parameter according to the second radio frequency signal, and transmit the second signal quality parameter to the first short distance communication core through the first transmission line; The first short distance communication core is configured to determine that the first radio frequency signal has a better quality than the second radio frequency signal according to the first signal quality parameter and the second signal quality parameter, and determine to demodulate the first radio frequency signal into an audio coded data packet. 10.The wireless headset of any one of claims 7-9, wherein The first transmission line comprises a universal asynchronous receiver-transmitter (UART) bus. 11.The wireless headset of claim 1, wherein The first system chip comprises a first radio frequency circuit, a first short distance communication core, and a first digital signal processor, and the first radio frequency circuit is coupled to the first radio frequency antenna; The second system chip comprises a second short distance communication core and a second digital signal processor, and the first radio frequency circuit is connected to the second short distance communication core through the first transmission line; The first radio frequency circuit is configured to receive the first radio frequency signal from the first radio frequency antenna, transmit the first radio frequency signal to the first short distance communication core, and transmit the first radio frequency signal from the first transmission line to the second short distance communication core; The first short distance communication core is configured to demodulate the first radio frequency signal into a first audio coded data packet, and transmit the first audio coded data packet to the first digital signal processor; The first digital signal processor is configured to decode first channel data from the first audio coded data packet; The second short distance communication core is configured to demodulate the first radio frequency signal into a second audio coded data packet, and transmit the second audio coded data packet to the second digital signal processor; The second digital signal processor is configured to decode second channel data from the second audio coded data packet. 12.The wireless headset of claim 11, wherein The second system chip further comprises a second radio frequency circuit; the second earphone further comprises a second radio frequency antenna; the second radio frequency circuit is coupled to the second radio frequency antenna; The second radio frequency circuit is configured to receive a second radio frequency signal transmitted by the terminal device from the second radio frequency antenna, and transmit the second radio frequency signal to the second short distance communication core; The first short distance communication core and the second short distance communication core are connected through a second transmission line; The first short distance communication core is configured to determine a first signal quality parameter according to the first radio frequency signal, and transmit the first signal quality parameter to the second short distance communication core through the second transmission line; The second short distance communication core is configured to determine a second signal quality parameter according to the second radio frequency signal, and transmit the second signal quality parameter to the first short distance communication core through the second transmission line; The first short distance communication core is configured to determine that the first radio frequency signal is demodulated into a first audio coding data packet when it is determined that the quality of the first radio frequency signal is better than the quality of the second radio frequency signal according to the first signal quality parameter and the second signal quality parameter; The second short distance communication core is configured to determine that the first radio frequency signal is demodulated into a second audio coding data packet when it is determined that the quality of the first radio frequency signal is better than the quality of the second radio frequency signal according to the first signal quality parameter and the second signal quality parameter.

13. The wireless headphones of claim 11, wherein: The first short distance communication core and the second short distance communication core are connected through a second transmission line; The first short distance communication core is further configured to transmit a first synchronization signal to the second short distance communication core through the second transmission line, and transmit the first synchronization signal to the first digital signal processor; The second short distance communication core is specifically configured to transmit the first synchronization signal to the second digital signal processor; The first digital signal processor is specifically configured to play the first channel data according to the first synchronization signal, and generate a first audio signal output to a loudspeaker of the first earphone; The second digital signal processor is specifically configured to play the second channel data according to the first synchronization signal, and generate a second audio signal output to a loudspeaker of the second earphone.

14. The wireless headset of any one of claims 11-13, wherein, The first transmission line comprises a radio frequency coaxial line.

15. The wireless headphones of any one of claims 2-4, 7-9, or 11-13, wherein: The first system chip further comprises a first codec, and the second system chip further comprises a second codec; The first digital signal processor is configured to play the first channel data, generate a first audio signal output to a loudspeaker of the first earphone, and transmit the first audio signal to the first codec; The first codec is configured to perform one or more of the following processes on the first audio signal: active noise cancellation (ANC) and equalization (EQ). the second digital signal processor is configured to play the second channel data, generate a second audio signal output to a speaker of the second earphone, and send the second audio signal to the second codec; the second codec is configured to perform one or more of the following on the second audio signal: active noise cancellation (ANC) and equalization (EQ).

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