CN116074671A

CN116074671A - Headset wireless earphone

Info

Publication number: CN116074671A
Application number: CN202111276676.XA
Authority: CN
Inventors: 涂建平
Original assignee: Huawei Device Co Ltd
Current assignee: Huawei Device Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2023-05-05
Also published as: WO2023071391A1

Abstract

The embodiment of the application provides a wireless headset, relates to the technical field of electronics, and can avoid actual bandwidth limitation between the headset and terminal equipment. The wireless headset includes a first headset and a second headset; a first earphone, comprising: the system comprises a first system chip and a first radio frequency antenna, wherein the first system chip is coupled with the first radio frequency antenna; a second earphone, comprising: a second system chip; a first transmission line is connected between the first system chip and the second system chip; the first system chip is configured to be in wireless communication connection with the terminal equipment through a first radio frequency antenna and receive a first radio frequency signal sent by the terminal equipment; 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.

Description

Headset wireless earphone

Technical Field

The embodiment of the application relates to the technical field of electronics, in particular to a wireless headset.

Background

The wireless headset can get rid of the limitation of the connecting wire with terminal equipment (such as a mobile phone, a notebook computer, a tablet computer and the like), and has better sound field and wearing comfort, so the wireless headset becomes the preferred equipment for various music lovers to enjoy music.

In a real wireless headset wireless earphone, a System On Chip (SOC) and a radio frequency antenna coupled with the system on chip are respectively arranged in the left and right earphones, the SOC can include a radio frequency chip, a bluetooth chip, a digital signal processor, an active noise reduction encoder and the like, and then the earphones on the left and right sides can be in wireless connection with a terminal device. At present, there are two implementation modes of communication between the right and left real wireless earphones, namely a forwarding mode or a monitoring mode. In the forwarding mode, the SOC of the main earphone is connected with the mobile phone in a Bluetooth mode, audio data sent by the mobile phone in the air are received, and the SOC of the main earphone forwards the audio data to the SOC of the auxiliary earphone in a wireless mode; in the monitoring mode, the SOC of the main earphone and the terminal equipment are connected by Bluetooth to receive audio data sent by the terminal equipment in the air, and the auxiliary earphone monitors and receives the audio data in the air. If the auxiliary ear does not monitor the audio data, the SOC of the main earphone forwards the audio data to the SOC of the auxiliary earphone in a wireless mode. Therefore, whether in the forwarding mode or the listening mode, the SOC of the main headset will have a part of the time for communicating with the SOC of the auxiliary headset, and this part of the time cannot be used for data transmission with the handset, resulting in limited actual bandwidth between the headset and the terminal device.

Disclosure of Invention

Embodiments of the present application provide a wireless headset capable of avoiding limitation of an actual bandwidth between the headset and a terminal device.

In a first aspect, a wireless headset is provided. The wireless headset includes a first headset and a second headset; the first earphone includes: the system comprises a first system chip and a first radio frequency antenna, wherein the first system chip is coupled with the first radio frequency antenna. The second earphone includes: and a second system chip. A first transmission line is connected between the first system chip and the second system chip. The first system chip is configured to be in wireless communication connection with the terminal equipment through a first radio frequency antenna and receive a first radio frequency signal sent by the terminal equipment; the first system chip is configured to transmit a transmission signal generated from a first radio frequency signal to the second system chip through a first transmission line. Thus, when the first system chip is in wireless communication connection with the terminal equipment through the first radio frequency antenna and receives the first radio frequency signal sent by the terminal equipment, the first system chip can transmit the transmission signal generated according to the first radio frequency signal to the second system chip in a wired mode through the first transmission line, so that the transmission signal between the two side earphones through wireless communication is avoided, and the practical bandwidth limitation between the earphones and the terminal equipment is avoided. And because the second system chip is also arranged in the second earphone, the second system chip can process the transmission signals transmitted by the first system chip of the first earphone, so that all radio frequency signals are prevented from being processed by the earphone on one side, and the limitation of calculation force is avoided.

In one possible implementation, the first system chip includes: a first radio frequency circuit, a first short-range communication core, and a first digital signal processor; wherein the first radio frequency circuit is coupled to the first radio frequency antenna; the second system chip includes: a second digital signal processor; the first digital signal processor is connected with the second digital signal processor through a first transmission line; the first radio frequency circuit is configured to receive a first radio frequency signal from the first radio frequency antenna and transmit the first radio frequency signal to the first short-range communication core; a first short-range communication core configured to demodulate the first radio frequency signal into audio encoded data packets and transmit the audio encoded data packets to the first digital signal processor; and a first digital signal processor configured to decode the first channel data and the second channel data in the audio encoding data packet and transmit the second channel data to the second digital signal processor through the first transmission line. In this scheme, the signal transmission between the first earphone and the second earphone is realized mainly through the first transmission line connected between the first digital signal processor and the second digital signal processor. The short-range communication core may be a chip for short-range wireless communication including, but not limited to, a bluetooth chip, a ZigBee chip, a near field communication (near field communication, NFC) chip, or others derived in the future.

In one possible implementation, the first digital signal processor generally plays the first channel data according to a first clock signal generated by a crystal oscillator on a first system chip in the first earphone; the second digital signal processor plays the second sound data according to a second clock signal generated by a crystal oscillator on a second system chip in the second earphone; because the clock signals provided by the crystal oscillator in the first earphone and the crystal oscillator in the second earphone are usually deviated by 20-80us, the deviation of 20-80us exists between the generated first audio signal and the second audio signal, and the user experience is poor for the fever friends. In order to realize the play synchronization of the first earphone and the second earphone, the second system chip further comprises: a second short-range communication core; the first short-distance communication core is connected with the second short-distance communication core through 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 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 synchronous 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 audio data according to the first synchronization signal, and generate a second audio signal output to a speaker of the second earphone.

In one possible implementation manner, based on the above-mentioned wireless headset, if the first headset is a left ear, the wireless headset is usually worn on the left ear, and if the terminal device is placed on the right side (for example, in a pocket on the right side) of the human body, the radio frequency signal needs to pass through the human body and then be received by the first radio frequency antenna, so that the received signal of the first radio frequency antenna is weakened, and the radio frequency signal received by the first radio frequency circuit is weaker. Then to solve this problem, the second system-on-chip further comprises: a second radio frequency circuit and a second short-range 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-range communication core is further configured to determine a first signal quality parameter according to the first radio frequency signal; a second radio frequency circuit configured to receive a second radio frequency signal transmitted from the terminal device from a second radio frequency antenna and transmit the second radio frequency signal to a second short-range 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 send the second signal quality parameter to the first short-distance communication core through a second transmission line; the first short-range communication core is configured to determine to demodulate the first radio frequency signal into an audio coding data packet when the quality of the first radio frequency signal is determined to be better than the quality of the second radio frequency signal according to the first signal quality parameter and the second signal quality parameter. In this way, when the quality of the first radio frequency signal is better than that of the second radio frequency signal in the above manner, the first short-distance communication core demodulates the first radio frequency signal into the audio coding data packet, and the first earphone is the main earphone, and the second earphone is the auxiliary earphone; otherwise, if the second short-range communication core determines that the quality of the second radio frequency signal is better than the quality of the first radio frequency signal, the second short-range communication core demodulates the second radio frequency signal into an audio coding data packet, the second earphone is a main earphone, and the first earphone is an auxiliary earphone. In addition, the first signal quality parameter or the second signal quality parameter includes one or more of reference signal received power (reference signal receiving power, RSRP), reference signal received quality (reference signal receiving quality, RSRQ), received signal strength indication (received signal strength indicator, RSSI), packet loss rate (packet error rate, PER), and signal to interference plus noise ratio (signal to interference plus noise ratio, SINR).

In one possible implementation, the second transmission line comprises a universal asynchronous receiver transmitter UART bus.

In one possible implementation, the first transmission line comprises an integrated circuit built-in audio I2S bus.

In one possible implementation, the first system chip includes: a first radio frequency circuit, a first short-range communication core, and a first digital signal processor; the second system chip includes: a second short-range communication core and a second digital signal processor; the first short-distance communication core is connected with the second short-distance communication core through a first transmission line; a first radio frequency circuit configured to receive a first radio frequency signal from a first radio frequency antenna and transmit the first radio frequency signal to a first short-range communication core; a first short-range communication core configured to demodulate a first radio frequency signal into an audio-coded data packet and to transmit the audio-coded data packet to a first digital signal processor, and to transmit the audio-coded data packet to a second short-range communication core via a first transmission line; a second short-range communication core configured to transmit the audio-coded data packet to a second digital signal processor; a first digital signal processor configured to decode first channel data in audio encoding data packets; a second digital signal processor configured to decode second audio data in the audio encoded data packets. In this scheme, signal transmission between the first earphone and the second earphone is mainly realized through a first transmission line connected between the first short-range communication core and the second short-range communication core.

In one possible implementation, to achieve play synchronization of the first earphone and the second earphone. The first short-range communication core is further configured to send a first synchronization signal to the second short-range communication core through the first transmission line and send the first synchronization signal to the first digital signal processor; a second short-range communication core 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 synchronous 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 audio signal according to the first synchronization signal, and generate a second audio signal output to a speaker of the second earphone.

In one possible implementation manner, based on the above-mentioned wireless headset, if the first headset is a left ear, the wireless headset is usually worn on the left ear, and if the terminal device is placed on the right side (for example, in a pocket on the right side) of the human body, the radio frequency signal needs to pass through the human body and then be received by the first radio frequency antenna, so that the received signal of the first radio frequency antenna is weakened, and the radio frequency signal received by the first radio frequency circuit is weaker. Then to solve this problem, the second system-on-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 with the second radio frequency antenna; a first short-range communication core configured to determine a first signal quality parameter from a first radio frequency signal; a second radio frequency circuit configured to receive a second radio frequency signal transmitted from the terminal device from a second radio frequency antenna and transmit the second radio frequency signal to a second short-range 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 send the second signal quality parameter to the first short-distance communication core through the first transmission line; the first short-range communication core is configured to determine to demodulate the first radio frequency signal into an audio coding data packet when the quality of the first radio frequency signal is determined to be better than the quality of the second radio frequency signal according to the first signal quality parameter and the second signal quality parameter. In this way, when the quality of the first radio frequency signal is better than that of the second radio frequency signal in the above manner, the first short-distance communication core demodulates the first radio frequency signal into the audio coding data packet, and the first earphone is the main earphone, and the second earphone is the auxiliary earphone; otherwise, if the second short-range communication core determines that the quality of the second radio frequency signal is better than the quality of the first radio frequency signal, the second short-range communication core demodulates the second radio frequency signal into an audio coding data packet, the second earphone is a main earphone, and the first earphone is an auxiliary earphone.

In one possible implementation, the first transmission line comprises a universal asynchronous receiver transmitter UART bus.

In one possible implementation, the first system chip includes: a first radio frequency circuit, a first short-range communication core, and a first digital signal processor; wherein the first radio frequency circuit is coupled to the first radio frequency antenna; the second system chip includes: a second short-range communication core and a second digital signal processor; the first radio frequency circuit is connected with the second short-distance communication core through a 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-range communication core, and transmit the first radio frequency signal from the first transmission line to a second short-range communication core; the first short-range communication core is configured to demodulate the first radio frequency signal into a first audio coding data packet and send the first audio coding data packet to the first digital signal processor; the first digital signal processor is configured to decode first channel data from the first audio encoding data packet; the second short-range communication core is configured to demodulate the first radio frequency signal into a second audio coding data packet and send the second audio coding data packet to the second digital signal processor; a second digital signal processor configured to decode second audio data from the second audio encoded data packet. In the scheme, signal transmission between the first earphone and the second earphone is realized mainly through a first transmission line connected between the first radio frequency circuit and the second short-distance communication core.

In one possible implementation manner, based on the above-mentioned wireless headset, if the first headset is a left ear, the wireless headset is usually worn on the left ear, and if the terminal device is placed on the right side (for example, in a pocket on the right side) of the human body, the radio frequency signal needs to pass through the human body and then be received by the first radio frequency antenna, so that the received signal of the first radio frequency antenna is weakened, and the radio frequency signal received by the first radio frequency circuit is weaker. To solve the problem, the second system chip further includes: a second radio frequency circuit; the second earphone further comprises a second radio frequency antenna; the second radio frequency circuit is coupled with the second radio frequency antenna; the second radio frequency circuit is configured to receive a second radio frequency signal sent by the terminal device from the second radio frequency antenna and send the second radio frequency signal to the second short-distance communication core; 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 configured to determine a first signal quality parameter according to the first radio frequency signal and send 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 send 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 to demodulate the first radio frequency signal into a first audio coding data packet when the quality of the first radio frequency signal is determined to be 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-range communication core is configured to determine to demodulate the first radio frequency signal into a second audio coding data packet when the quality of the first radio frequency signal is determined to be better than the quality of the second radio frequency signal according to the first signal quality parameter and the second signal quality parameter. In this way, when the quality of the first radio frequency signal is better than that of the second radio frequency signal in the above manner, the first short-distance communication core demodulates the first radio frequency signal into the first audio coding data packet, the second short-distance communication core demodulates the first radio frequency signal into the second audio coding data packet, and then the first earphone is the main earphone, and the second earphone is the auxiliary earphone; otherwise, if the second short-distance communication core determines that the quality of the second radio frequency signal is better than the quality of the first radio frequency signal, the first short-distance communication core demodulates the second radio frequency signal into a first audio coding data packet, the second short-distance communication core demodulates the second radio frequency signal into a second audio coding data packet, the second earphone is a main earphone, and the first earphone is an auxiliary earphone.

In one possible implementation, to achieve play synchronization of the first earphone and the second earphone. The first short-distance communication core is connected with the second short-distance communication core through 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 through 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 a speaker of the first earphone; the second digital signal processor is specifically configured to play the second audio data according to the first synchronization signal, and generate a second audio signal output to a speaker of the second earphone.

In one possible implementation, the first transmission line comprises a radio frequency coaxial line.

In one possible implementation, the first system-on-chip further includes a first codec; the second system chip further comprises a second codec; a first digital signal processor configured to play first channel data, generate a first audio signal output to a speaker of a first earphone, and transmit the first audio signal to the first codec; a first codec configured to perform at least one or more of the following on the first audio signal: active noise reduction (active noise cancellation, ANC) and Equalization (EQ); a second digital signal processor configured to play second audio data, generate a second audio signal output to a speaker of a second earphone, and transmit the second audio signal to the second codec; a second codec configured to perform at least one or more of the following processing on the second audio signal: active noise reduction ANC and equalization EQ. Wherein in this possible implementation, the channel data is processed by the codec one or more of: and the active noise reduction ANC and the equalization EQ can obtain better tone quality.

In one possible implementation manner, the first system chip includes: a first radio frequency circuit, a first short-range communication core, a first digital signal processor, and a first codec; wherein the first radio frequency circuit is coupled to the first radio frequency antenna; the second system chip includes: a second codec; the second decoder is connected with the first 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 transmit the first radio frequency signal to the first short-range 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; the first digital signal processor is configured to play the first channel data, generate a first audio signal output to a speaker of the first earphone, and transmit the first audio signal to the first codec; the first 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 through 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 reduction 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 reduction ANC and equalization EQ. In this scheme, signal transmission between the first earphone and the second earphone is mainly achieved through a first transmission line connected between the first digital signal processor and the second codec.

In one possible implementation manner, based on the above-mentioned wireless headset, if the first headset is a left ear, the wireless headset is usually worn on the left ear, and if the terminal device is placed on the right side (for example, in a pocket on the right side) of the human body, the radio frequency signal needs to pass through the human body and then be received by the first radio frequency antenna, so that the received signal of the first radio frequency antenna is weakened, and the radio frequency signal received by the first radio frequency circuit is weaker. To solve the problem, the second system chip further includes: a second radio frequency circuit, a second short-range communication core, and a second digital signal processor; 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-range 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 sent by the terminal device from the second radio frequency antenna and send 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 send the second signal quality parameter to the first short-distance communication core through the first transmission line; the first short-range communication core is configured to determine to demodulate the first radio frequency signal into an audio coding data packet when the quality of the first radio frequency signal is determined to be better than the quality of the second radio frequency signal according to the first signal quality parameter and the second signal quality parameter. In this way, when the quality of the first radio frequency signal is better than that of the second radio frequency signal in the above manner, the first short-distance communication core demodulates the first radio frequency signal into the audio coding data packet, and the first earphone is the main earphone, and the second earphone is the auxiliary earphone; otherwise, if the second short-range communication core determines that the quality of the second radio frequency signal is better than the quality of the first radio frequency signal, the second short-range communication core demodulates the second radio frequency signal into an audio coding data packet, the second earphone is a main earphone, and the first earphone is an auxiliary earphone.

Drawings

Fig. 1 is a schematic structural diagram of a wireless headset according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a wireless headset according to another embodiment of the present application;

fig. 3 is a schematic structural diagram of a wireless headset according to another embodiment of the present application;

fig. 4 is a schematic structural diagram of a wireless headset according to still another embodiment of the present application;

fig. 5 is a schematic structural diagram of a wireless headset according to another embodiment of the present application;

fig. 6 is a schematic structural diagram of a wireless headset according to another embodiment of the present application;

fig. 7 is a schematic structural diagram of a wireless headset according to still another embodiment of the present application;

fig. 8 is a schematic structural diagram of a wireless headset according to another embodiment of the present application;

fig. 9 is a schematic structural diagram of a wireless headset according to another embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In this application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b and c may be single or plural. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the terms "first", "second", and the like are used to distinguish the same item or similar items having substantially the same function and effect, and those skilled in the art will understand that the terms "first", "second", and the like do not limit the number and execution order. For example, "first" in the first earphone and "second" in the second earphone in the embodiments of the present application are only used to distinguish different earphones. The first, second, etc. descriptions in the embodiments of the present application are only used for illustrating and distinguishing the description objects, and no order division is used, nor does it indicate that the number of the devices in the embodiments of the present application is particularly limited, and no limitation on the embodiments of the present application should be construed.

In this application, the terms "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The wireless headset can get rid of the restriction of the connecting wire with terminal equipment (such as smart mobile phone, notebook computer, tablet computer, etc.), and the wireless headset of headset has better sound field and wears the comfort level, consequently becomes all kinds of music fan's preferred equipment of enjoying the music. The terminal device in this embodiment of the present application may be an electronic device such as a mobile phone, a tablet computer, a desktop, a laptop, a handheld computer, a notebook, an ultra-mobile personal computer (UMPC), an internet book, a cellular phone, a personal digital assistant (personal digital assistant, PDA), an augmented reality (augmented reality, AR) \virtual reality (VR) device, etc., and the specific form of the terminal device is not limited in particular, and the following embodiment will describe the terminal device as an example of a mobile phone.

A bluetooth headset 100 as shown in fig. 1, the external appearance of the wireless headset 100 includes a headset 1 and a headset 2, the headset 1 and the headset 2 being connected by a head rest 3 (which may be, for example, an arc-shaped support frame as shown in fig. 1). In some examples, as shown in fig. 2, based on the external appearance structure of the wireless headset 100 shown in fig. 1, the bluetooth headset 100 includes a system on chip (SOC, or system on chip), the SOC12 may include a radio frequency chip, a bluetooth chip, a digital signal processor, a codec (e.g., an active noise reduction codec (active noise canceling codec, ANC codec)), etc., the SOC12 is typically provided in one of the left and right two headsets (headset 1 shown in fig. 2), the SOC12 may be connected to a terminal device (e.g., a mobile phone 200 in fig. 2) through a radio frequency antenna 11, and receives an audio signal transmitted from the terminal device; when the SOC12 is disposed in the left earphone 1, for example, after the SOC12 receives the audio signal transmitted by the mobile phone 200, the audio signal of the left ear is played through the speaker 13 of the left earphone 1, and the audio signal of the right ear is transmitted to the right earphone 2 through the transmission line 31 and played through the speaker 23. Such a headset wireless earphone has a limited power and interface provided due to the SOC provided in one earphone, and a plurality of transmission lines (for example, audio lines, power lines, and other signal lines, which may be as many as 20 or more) need to be provided in the head rest 3, and these transmission lines have a risk of breaking, which is disadvantageous for folding and storage.

In order to solve the above-described problems, the embodiments of the present application also provide a truly wireless stereo (true wireless stereo, TWS) headset that may set an SOC and a radio frequency antenna in two headsets, respectively. For example, a wireless headset 100 as shown in fig. 3, the wireless headset 100 comprising a headset 1 and a headset 2, the headset 1 comprising an SOC12, and a radio frequency antenna 11 coupled to the SOC 12; the headset 2 includes an SOC22, and a radio frequency antenna 21 coupled to the SOC22. Optionally, the headset 1 may further comprise a speaker 13 and the headset 2 may further comprise a speaker 23, the speaker 13 in the headset 1 being coupled to the SOC12 and the speaker 23 in the headset 2 being coupled to the SOC22. Based on the wireless headset shown in fig. 3, there are two implementations of communication between left and right headsets, a forwarding mode or a listening mode. In the forwarding mode, the SOC12 of the main earphone (for example, may be the earphone 1) establishes a bluetooth connection with the mobile phone 200, receives audio data sent by the mobile phone 200 in the air, and forwards the audio data to the SOC22 of the auxiliary earphone (for example, may be the earphone 2) in a wireless manner; in the listening mode, the SOC12 of the master earphone establishes a bluetooth connection with the mobile phone 200, receives audio data transmitted by the mobile phone 200 in the air, and the slave earphone listens to receive the audio data in the air. If the sub-ear does not hear the audio data, the SOC12 of the main earpiece forwards the audio data wirelessly to the SOC22 of the sub-earpiece. Thus, regardless of whether in the forwarding mode or listening mode, the SOC12 of the master headset will have a portion of the time to communicate with the SOC22 of the slave headset, which portion of the time is not available for data transfer with the handset 200, resulting in limited actual bandwidth between the headset and the handset. Especially, the higher the duty ratio of wireless transmission between the main earphone and the auxiliary earphone is, the more difficult is the amplification to support high-definition music playing.

In order to avoid the limitation of the actual bandwidth between the earphone and the mobile phone, the user experience is improved. The embodiment of the present application further provides a wireless headset, and as shown in fig. 4, the wireless headset 100 includes a headset 1, a headset 2, and a first transmission line 31; the earphone 1 includes: the system on chip SOC12 and the radio frequency antenna 11, the SOCs 12 are coupled to the radio frequency antenna 11. The earphone 2 includes: system on chip SOC22.SOC12 and SOC22 are connected by a first transmission line 31. The SOC12 is configured to be connected to the mobile phone 200 through the radio frequency antenna 11 in a wireless communication manner, and receive a first radio frequency signal sent by the mobile phone 200; the SOC12 is configured to transmit a transmission signal generated from the first radio frequency signal to the SOC22 through the first transmission line 31.

The earphone 1 may be a left earphone or a right earphone. When the headset 1 is a left headset, the headset 2 is a right headset. When the headset 1 is a right headset, the headset 2 is a left headset. The above-mentioned first transmission line 31 may be provided, for example, in a mechanical structure (e.g., the head rest 3) connecting the headset 1 and the headset 2. For example, the wireless headset may further include an arc-shaped support frame through which the headset 1 and the headset 2 are connected, and the first transmission line 31 between the SOC12 and the SOC22 may be disposed in the arc-shaped support frame. The embodiment of the present application is not limited to the specific arrangement position of the first transmission line 31 between the SOC12 and the SOC22, and is only exemplified herein.

The first transmission line 31 may be a universal asynchronous receiver/transmitter (UART) bus, an integrated circuit (inter-integrated circuit sound, I2S) integrated circuit (inter-integrated circuit bus, I2C) bus, a radio frequency coaxial line, or the like. The embodiments of the present application are not limited to a specific type of the first transmission line. Furthermore, the headset 1 may further comprise a speaker 13, the speaker 13 being coupled to the SOC 12. The headset 2 may also include a speaker 23, the speaker 23 being coupled to the SOC 22.

It should be noted that the transmission signal may include the first radio frequency signal itself or a signal generated according to the first radio frequency signal. Specifically, the transmission signal may include channel data transmitted between digital signal processors (digital signal processor, DSP) in the following examples, audio encoded data packets transmitted between short-range communication cores, synchronization signals, signal quality parameters of radio frequency signals, radio frequency signals transmitted between radio frequency circuits and short-range communication cores, audio signals transmitted between DSP and codec, and so on, and the detailed description of the examples below is specifically referred to.

Thus, when the SOC12 is in wireless communication connection with the terminal device through the radio frequency antenna 11, and receives the first radio frequency signal sent by the terminal device, the SOC12 can transmit the transmission signal generated according to the first radio frequency signal to the SOC22 through the first transmission line 31 in a wired manner, so that the transmission signal between the two-side earphone is avoided through wireless communication, and therefore, the limitation of the practical bandwidth between the earphone and the mobile phone is also avoided. In addition, since the SOC22 is also arranged in the earphone 2, the SOC22 can process the transmission signals transmitted by the SOC12 of the earphone 1, so that all radio frequency signals are prevented from being processed by the earphone on one side, and the limitation of calculation force is avoided.

Specifically, in a first application scenario, referring to fig. 5, the SOC12 includes: a radio frequency circuit 121, a short-range communication core 122, and a digital signal processor (digital signal processor, DSP) 123; wherein the radio frequency circuit 121 is coupled to the radio frequency antenna 11; the SOC22 includes: DSP223; DSP123 and DSP223 are connected by first transmission line 31. Wherein the radio frequency circuit 121 is configured to receive the first radio frequency signal from the radio frequency antenna 11 and transmit the first radio frequency signal to the short-range communication core 122; a short-range communication core 122 configured to demodulate the first radio frequency signal into audio encoded data packets and transmit the audio encoded data packets to the DSP123; the DSP123 is configured to decode the first channel data and the second channel data in the audio encoding data packet and to transmit the second channel data to the DSP223 via the first transmission line 31. The first transmission line 31 may be an I2S bus as an example.

The short-range communication core may be a chip for short-range wireless communication including, but not limited to, a bluetooth chip, a ZigBee chip, a near field communication (near field communication, NFC) chip, or other chips for short-range wireless communication derived in the future in the following examples, the specific types of the short-range wireless communication chip are not limited in the embodiments of the present application, and the following embodiments take the short-range wireless communication chip as a bluetooth chip as an example.

Specifically, as shown in fig. 4 and fig. 5, after the mobile phone 200 sends the first rf signal carrying the audio data to the rf antenna 11, the rf circuit 121 is mainly configured to receive the first rf signal from the rf antenna 11; then, the Bluetooth chip 122 demodulates the first RF signal into audio encoded data packets (e.g., sub-band encoded or advanced audio coding (SBC/AAC) base transmission header (base transport header, BTH packets)), and then the DSP123 decodes the audio encoded data packets to generate a pulse code modulated (pulse code modulation, PCM) code stream containing first channel data and second channel data for playback in the speakers of the earphone 1 or earphone 2, respectively.

For example, if the first channel data is left channel data, the DSP123 plays the first channel data, outputs a first audio signal to the speaker 13 of the headphone 1, and drives the speaker 13; the second channel data is right channel data, and DSP223 plays the second channel data, outputs a second audio signal to speaker 23 of headphone 2, and drives speaker 23. It should be noted that, to improve the playing tone quality, the DSP123 may further perform one or more of the following processing on the first audio signal: after actively reducing noise ANC and equalizing EQ, outputting to the speaker 13; DSP223 may also perform one or more of the following processing on the second audio signal: after the active noise reduction ANC and equalization EQ, the signal is output to the speaker 23. The active noise reduction ANC and equalization EQ functions described above may be integrated in the DSP or may be implemented by separate codecs, for example, a codec may be coupled between the DSP and the speaker, as shown in fig. 5, a codec 124 may be coupled between the DSP123 and the speaker 13, a codec 224 may be coupled between the DSP223 and the speaker 23, and the codec 124 and the codec 224 may be active noise reduction ANC codecs.

Furthermore, in some examples in the first scenario, DSP123 typically plays the first channel data from a first clock signal generated by a crystal oscillator on SOC12 in headset 1; and DSP223 plays the second sound data according to the second clock signal generated by the crystal oscillator on SOC22 in earphone 2; since the clock signal provided by the crystal oscillator in the earphone 1 and the crystal oscillator in the earphone 2 generally have a deviation of 20-80us, the generated first audio signal and the second audio signal also have a deviation of 20-80us, so that the user experience is poor for a fever friend. In order to achieve play synchronization of the

headphones

1 and 2, referring to fig. 6, the SOC22 further includes: a short-range communication core 222; wherein the short-range communication core 222 may be connected to the short-range communication core 122 through the second transmission line 32, for example, the second transmission line 32 may be a UART bus. Short-range communication core 122 is further configured to send a first synchronization signal to short-range communication core 222 via second transmission line 32 and to DSP123; it should be noted that the first synchronization signal may be a clock signal provided by a crystal oscillator in the SOC 12. The DSP123 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 the headphones 1; DSP223 is specifically configured to play the second audio data according to the first synchronization signal, and generate a second audio signal that is output to speaker 23 of headphone 2. In some examples, since DSP123 and DSP223 are connected via first transmission line 31, the first synchronization signal may also be obtained by DSP123 from the crystal oscillator in SOC12 and transmitted to DSP223 via first transmission line 31. The first synchronization signal may also be transmitted using a separate transmission line in some examples, such as directly through an input-output port (general purpose input output, GPIO) bus between ports provided by SOC1 and SOC 2.

Based on the above-mentioned wireless headset, when the headset 1 is a left ear, it is usually worn on the left ear, and if the mobile phone 200 is placed on the right side of a human body (for example, in a pocket on the right side), the radio frequency signal needs to pass through the human body and then be received by the radio frequency antenna 11, which results in weakening the received signal of the radio frequency antenna 11, so that the radio frequency signal received by the radio frequency circuit 121 is weaker. To address this issue, in some examples, as shown in conjunction with fig. 4 and 6, SOC22 further includes: a radio frequency circuit 221 and a short-range communication core 222; the earphone 2 further comprises a radio frequency antenna 21; the radio frequency circuit 221 is coupled to the radio frequency antenna 21; the short-range communication core 222 may be connected to the short-range communication core 122 through a second transmission line 32, for example, the second transmission line 32 may be a UART bus. Specifically, the short-range communication core 122 is further configured to determine a first signal quality parameter according to the first radio frequency signal; a radio frequency circuit 221 configured to receive a second radio frequency signal transmitted from the terminal device from the radio frequency antenna 21 and transmit the second radio frequency signal to the short-range communication core 222; the first radio frequency signal and the second radio frequency signal may be received signals of the same radio frequency signal sent by the earphone 1 and the earphone 2 for the terminal device. A short-range communication core 222 configured to determine a second signal quality parameter from the second radio frequency signal and transmit 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 to demodulate the first radio frequency signal into audio encoded data packets 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 signal quality parameter and the second signal quality parameter. Similarly, the short-range communication core 122 may also transmit the first signal quality parameter to the short-range communication core 222 via the second transmission line 32, and 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 DSP223 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 the audio encoded data packet in the above manner, the headset 1 is the main headset and the headset 2 is the sub-headset; conversely, if the short-range communication core 222 determines that the quality of the second radio frequency signal is better than the quality of the first radio frequency signal, the short-range communication core 222 demodulates the second radio frequency signal into an audio encoded data packet, and the headset 2 is a main headset and the headset 1 is a sub-headset. Of course, when the headset 2 is the main ear, the short-distance communication core 122 or the DSP223 of the SOC22 may acquire the clock signal of the crystal oscillator in the SOC22 as the synchronization signal for playing the respective channel data of the headset 1 and the headset 2. Further, the first signal quality parameter or the second signal quality parameter described above includes one or more of RSRP, RSRQ, RSSI, PER and SINR.

In addition, the earphone 1 and/or the earphone 2 may further include a microphone and a sensor connected to the SOC; the specific sensor may be a proximity sensor, a touch sensor, etc. Wherein the microphone and the sensor may be connected to the DSP in the headset 1 and/or in the headset 2.

In a second application scenario, referring to fig. 7, the system-on-chip SOC12 includes: a radio frequency circuit 121, a short-range communication core 122, and a digital signal processor DSP123; the SOC22 includes: short-range communication core 222 and DSP223; wherein the short-range communication core 222 may be connected to the short-range communication core 122 through a first transmission line 31, for example, the first transmission line 31 may be a UART bus.

A radio frequency circuit 121 configured to receive the first radio frequency signal from the radio frequency antenna 11 and transmit the first radio frequency signal to the short-range communication core 122; a short-range communication core 122 configured to demodulate the first radio frequency signal into audio encoded data packets and send the audio encoded data packets to the DSP123 and to the short-range communication core 222 via the first transmission line 31; a short-range communication core 222 configured to transmit the audio encoded data packet to the DSP223; a DSP123 configured to decode the first channel data in the audio encoding data packet; DSP223 is configured to decode the second sound data in the audio encoded data packet.

The short-range communication core may be, but not limited to, a bluetooth chip, a ZigBee chip, an NFC chip, or other chips for short-range wireless communication derived in the future, and the specific type of the short-range wireless communication chip in the embodiments of the present application is not limited, and the following embodiments take the short-range wireless communication chip as a bluetooth chip for example.

Specifically, as shown in fig. 4 and fig. 7, after the mobile phone 200 sends the first rf signal carrying the audio data to the rf antenna 11, the rf circuit 121 is mainly configured to receive the first rf signal from the rf antenna 11; the bluetooth chip 122 then demodulates the first radio frequency signal into a basic transmission header (base transport header, BTH packet) of an audio encoded data packet, such as subband encoding or advanced audio coding (advanced audio coding, SBC/AAC), after which the bluetooth chip 122 sends the audio encoded data packet to the bluetooth chip 222 via the first transmission line 31, after which the DSP123 SBC/AAC decodes the audio encoded data packet to generate a pulse code modulated (pulse code modulation, PCM) code stream comprising first channel data, and the DSP223 SBC/AAC decodes the audio encoded data packet to generate a pulse code modulated (pulse code modulation, PCM) code stream comprising second channel data, wherein the first channel data and the second channel data are for playback in a speaker of the headset 1 or headset 2, respectively.

For example, if the first channel data is left channel data, the DSP123 plays the first channel data, outputs a first audio signal to the speaker 13 of the headset 1, and drives the speaker 13; the second channel data is right channel data, and DSP223 plays the second channel data, outputs a second audio signal to speaker 23 of headphone 2, and drives speaker 23. It should be noted that the DSP123 may further perform one or more of the following processing on the first audio signal: after actively reducing noise ANC and equalizing EQ, outputting to the speaker 13; DSP223 may also perform one or more of the following processing on the second audio signal: after the active noise reduction ANC and equalization EQ, the signal is output to the speaker 23. The active noise reduction ANC and equalization EQ functions described above may be integrated in the DSP or may be implemented by separate codecs, for example, a codec may be coupled between the DSP and the speaker, as shown in fig. 7, a codec 124 may be coupled between the DSP123 and the speaker 13, a codec 224 may be coupled between the DSP223 and the speaker 23, and the codec 124 and the codec 224 may be active noise reduction ANC codecs.

Further, in some examples in the second scenario, to achieve play synchronization of the

headphones

1 and 2, the short-range communication core 122 is further configured to send a first synchronization signal to the short-range communication core 222 via the first transmission line 31, and send the first synchronization signal to the DSP123; a short-range communication core 222 specifically configured to transmit a first synchronization signal to the DSP223; it should be noted that the first synchronization signal may be a clock signal provided by a crystal oscillator in the SOC 12. The DSP123 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 the headphones 1; DSP223 is specifically configured to play the second audio data according to the first synchronization signal, and generate a second audio signal that is output to speaker 23 of headphone 2. The first synchronization signal may also be transmitted using a separate transmission line in some examples, such as directly through an input-output port (general purpose input output, GPIO) bus between ports provided by SOC1 and SOC 2.

Based on the above-mentioned wireless headset, when the headset 1 is a left ear, it is usually worn on the left ear, and if the mobile phone 200 is placed on the right side of the human body (for example, in a pocket on the right side), the radio frequency signal needs to pass through the human body and then be received by the radio frequency antenna 11, which may result in weakening the radio frequency antenna 11, so that the radio frequency signal received by the radio frequency circuit 121 is weaker. To address this issue, in some examples, as shown in conjunction with fig. 4 and 7, SOC22 further includes: a radio frequency circuit 221; the earphone 2 further comprises a radio frequency antenna 21; the radio frequency circuit 221 is coupled to the radio frequency antenna 21.

Specifically, the short-range communication core 122 is further configured to determine a first signal quality parameter according to the first radio frequency signal; a radio frequency circuit 221 configured to receive a second radio frequency signal transmitted from the terminal device from the radio frequency antenna 21 and transmit the second radio frequency signal to the short-range communication core 222; the first radio frequency signal and the second radio frequency signal may be received signals of the same radio frequency signal sent by the earphone 1 and the earphone 2 for the terminal device. A short-range communication core 222 configured to determine a second signal quality parameter from the second radio frequency signal and transmit the second signal quality parameter to the short-range communication core 122 via the first transmission line 31; the short-range communication core 122 is configured to determine to demodulate the first radio frequency signal into audio encoded data packets 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 signal quality parameter and the second signal quality parameter. Similarly, the short-range communication core 122 may also transmit the first signal quality parameter to the short-range communication core 222 via the first transmission line 31, and 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 DSP223 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 the audio encoded data packet in the above manner, the headset 1 is the main headset and the headset 2 is the sub-headset; conversely, if the short-range communication core 222 determines that the quality of the second radio frequency signal is better than the quality of the first radio frequency signal, the short-range communication core 222 demodulates the second radio frequency signal into an audio encoded data packet, and the headset 2 is a main headset and the headset 1 is a sub-headset.

In a third application scenario, referring to fig. 8, the system-on-chip SOC12 includes: a radio frequency circuit 121, a short-range communication core 122, and a digital signal processor DSP123; the SOC22 includes: short-range communication core 222 and DSP223; wherein the radio frequency circuit 221 is coupled to the radio frequency antenna 21. Wherein the rf circuit 121 may be connected to the short-range communication core 222 through a first transmission line 31, for example, the first transmission line 31 may be an rf coaxial line.

A radio frequency circuit 121 configured to receive the first radio frequency signal from the radio frequency antenna 11 and transmit the first radio frequency signal to the short-range communication core 122 and transmit the first radio frequency signal from the first transmission line 31 to the short-range communication core 222; a short-range communication core 122 configured to demodulate from the first radio frequency signal into a first audio encoded data packet; a digital signal processor DSP123 configured to decode first channel data from the first audio encoding data packet; a short-range communication core 222 configured to demodulate the first radio frequency signal into a second audio encoded data packet and send the second audio encoded data packet to the DSP223; DSP223 is configured to decode second audio data from the second audio encoded data packet.

In the following examples, the short-range communication core may be a chip for short-range wireless communication including, but not limited to, a bluetooth chip, a ZigBee chip, an NFC chip, or other chips for short-range wireless communication derived in the future, and the specific types of the short-range wireless communication chips are not limited in the embodiments of the present application, and the following embodiments are described by taking the short-range wireless communication chip as a bluetooth chip.

Specifically, as shown in fig. 4 and 8, after the mobile phone 200 sends the first rf signal carrying the audio data to the rf antenna 11, the rf circuit 121 is mainly configured to receive the first rf signal from the rf antenna 11; the radio frequency circuit 121 transmits the first radio frequency signal to the bluetooth chip 222 through the first transmission line 31. The bluetooth chip 122 then 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 playing in the speaker of the earphone 1 or the earphone 2. Thereafter, the DSP123 performs SBC/AAC decoding on the first audio encoded data packet to generate a first PCM bitstream containing the first channel data; DSP223 SBC/AAC decodes the second audio encoded data packet to generate a second PCM bitstream, which contains the second channel data.

For example, if the first channel data is left channel data, the DSP123 plays the first channel data, outputs a first audio signal to the speaker 13 of the headset 1, and drives the speaker 13; the second channel data is right channel data, and DSP223 plays the second channel data, outputs a second audio signal to speaker 23 of headphone 2, and drives speaker 23. It should be noted that the DSP123 may further perform one or more of the following processing on the first audio signal: after actively reducing noise ANC and equalizing EQ, outputting to the speaker 13; DSP223 may also perform one or more of the following processing on the second audio signal: after the active noise reduction ANC and equalization EQ, the signal is output to the speaker 23. The active noise reduction ANC and equalization EQ functions described above may be integrated in the DSP or may be implemented by separate codecs, for example, a codec may be coupled between the DSP and the speaker, as shown in fig. 8, a codec 124 may be coupled between the DSP123 and the speaker 13, a codec 224 may be coupled between the DSP223 and the speaker 23, and the codec 124 and the codec 224 may be active noise reduction ANC codecs.

Further, in some examples in the third scenario, to achieve play synchronization of the

headphones

1 and 2, the short-range communication core 122 and the short-range communication core 222 are connected by the second transmission line 32; the second transmission line may be a UART bus; short-range communication core 122 is further configured to send a first synchronization signal to short-range communication core 222 via second transmission line 32 and to DSP123; it should be noted that the first synchronization signal may be a clock signal provided by a crystal oscillator in the SOC 12. The DSP123 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 the headphones 1; DSP223 is specifically configured to play the second audio data according to the first synchronization signal, and generate a second audio signal that is output to speaker 23 of headphone 2. The first synchronization signal may also be transmitted using a separate transmission line in some examples, such as directly through an input output port (general purpose input output, GPIO) bus between ports provided by SOC1 and SOC2, or by providing transmission lines (e.g., I2S bus) between DSP123 and DSP 223.

Based on the above-mentioned wireless headset, when the headset 1 is a left ear, it is usually worn on the left ear, and if the mobile phone 200 is placed on the right side of the human body (for example, in a pocket on the right side), the radio frequency signal needs to pass through the human body and then be received by the radio frequency antenna 11, which may result in weakening the radio frequency antenna 11, so that the radio frequency signal received by the radio frequency circuit 121 is weaker. To address this issue, in some examples, as shown in conjunction with fig. 4 and 8, SOC22 further includes: a radio frequency circuit 221; the earphone 2 further comprises a radio frequency antenna 21; the radio frequency circuit 221 is coupled to the radio frequency antenna 21. The short-range communication core 122 and the short-range communication core 222 are connected by the second transmission line 32. Specifically, the radio frequency circuit 221 is configured to receive the 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-distance communication core 222; the short-range communication core 122 is further configured to determine a first signal quality parameter from the first radio frequency signal and transmit the first signal quality parameter to the short-range communication core 222 via the second transmission line 32; the first radio frequency signal and the second radio frequency signal may be received signals of the same radio frequency signal sent by the earphone 1 and the earphone 2 for the terminal device. A short-range communication core 222 configured to determine a second signal quality parameter from the second radio frequency signal; a short-range communication core 222 configured to transmit the second signal quality parameter to the short-range communication core 122 via the second transmission line 32; a short-range communication core 122 configured to determine to demodulate the first radio frequency signal into a first audio encoded 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 based on the first signal quality parameter and the second signal quality parameter; the short-range communication core 222 is configured to determine to demodulate the first radio frequency signal into the second audio encoded 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 based on the first signal quality parameter and the second signal quality parameter. In this way, earphone 1 is the main earphone and earphone 2 is the auxiliary 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, the short-range communication core 221 demodulates the first audio encoded data packet in the second radio frequency signal, the short-range communication core 222 demodulates the second audio encoded data packet in the second radio frequency signal, the earphone 2 is a primary earphone, and the earphone 1 is a 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, and the radio frequency circuit 221 may transmit the second radio frequency signal to the short-range communication core 122 through the third transmission line 33, and the third transmission line 33 may be a coaxial radio frequency line.

In a fourth application scenario, referring to fig. 9, the SOC12 includes: a radio frequency circuit 121, a short-range communication core 122, a digital signal processor (digital signal processor, DSP) 123, and a first codec 124; wherein the radio frequency circuit 121 is coupled to the radio frequency antenna 11; the SOC22 includes: a codec 224; the DSP123 is connected to the codec 224 via a first transmission line 31, which first transmission line 31 may be an I2S bus. Wherein the radio frequency circuit 121 is configured to receive the first radio frequency signal from the radio frequency antenna 11 and transmit the first radio frequency signal to the short-range communication core 122; a short-range communication core 122 configured to demodulate the first radio frequency signal into audio encoded data packets and transmit the audio encoded data packets to the DSP123; a DSP123 configured to decode the first channel data and the second channel data in the audio encoding data packet; a DSP123 configured to decode the first channel data and the second channel data in the audio encoding data packet; the DSP123 is configured to play the first channel data, generate a first audio signal output to a speaker of the first earphone, and transmit the first audio signal to the codec 124; the DSP123 configured to play the second sound data, generate a second audio signal output to the speaker of the second earphone, and transmit the second audio signal to the codec 224 through the first transmission line 31; a codec 124 configured to perform at least one or more of the following processing on the first audio signal: active noise reduction ANC and equalization EQ; a codec 224 configured to perform at least one or more of the following processing on the second audio signal: active noise reduction ANC and equalization EQ.

Specifically, referring to fig. 9, after the mobile phone 200 sends a first rf signal carrying audio data to the rf antenna 11, the rf circuit 121 is mainly configured to receive the first rf signal from the rf antenna 11; the bluetooth chip 122 then demodulates the first radio frequency signal into a base transmission header (base transport header, BTH packet) of an audio coding data packet (e.g., subband coding or advanced audio coding (advanced audio coding, SBC/AAC)), after which the DSP123 decodes the audio coding data packet to generate a pulse code modulated (pulse code modulation, PCM) code stream containing first channel data and second channel data for playing in the speaker of the headset 1 or headset 2, respectively, e.g., the first channel data is left channel data, the DSP123 plays the first channel data to generate first audio data, the first audio data is processed by the decoder 124 and then output to the speaker 13 of the headset 1 to drive the speaker 13, the second channel data is right channel data, the DSP123 plays the second channel data to generate second audio data, the second audio data is processed by the decoder 224 and then output to the speaker 23 of the headset 2 to drive the speaker 23.

Based on the above-mentioned wireless headset, when the headset 1 is a left ear, it is usually worn on the left ear, and if the mobile phone 200 is placed on the right side of a human body (for example, in a pocket on the right side), the radio frequency signal needs to pass through the human body and then be received by the radio frequency antenna 11, which results in weakening the received signal of the radio frequency antenna 11, so that the radio frequency signal received by the radio frequency circuit 121 is weaker. To address this issue, in some examples, as shown in connection with fig. 9, SOC22 further includes: radio frequency circuit 221, short-range communication core 222, DSP223; the earphone 2 further comprises a radio frequency antenna 21; the radio frequency circuit 221 is coupled to the radio frequency antenna 21; the short-range communication core 222 may be connected to the short-range communication core 122 through a second transmission line 32, for example, the second transmission line 32 may be a UART bus. Specifically, the short-range communication core 122 is further configured to determine a first signal quality parameter according to the first radio frequency signal; a radio frequency circuit 221 configured to receive a second radio frequency signal transmitted from the terminal device from the radio frequency antenna 21 and transmit the second radio frequency signal to the short-range communication core 222; the first radio frequency signal and the second radio frequency signal may be received signals of the same radio frequency signal sent by the earphone 1 and the earphone 2 for the terminal device. A short-range communication core 222 configured to determine a second signal quality parameter from the second radio frequency signal and transmit 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 to demodulate the first radio frequency signal into audio encoded data packets 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 signal quality parameter and the second signal quality parameter. Similarly, the short-range communication core 122 may also transmit the first signal quality parameter to the short-range communication core 222 via the second transmission line 32, and 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 codec 224 will subsequently receive the second audio data sent by the DSP 123. Thus, when the short-range communication core 122 demodulates the first radio frequency signal into the audio encoded data packet in the above manner, the headset 1 is the main headset and the headset 2 is the sub-headset; conversely, if the short-range communication core 222 determines that the quality of the second radio frequency signal is better than the quality of the first radio frequency signal, the short-range communication core 222 demodulates the second radio frequency signal into an audio encoded data packet, and the headset 2 is a main headset and the headset 1 is a sub-headset. Similarly, when the DSP223 is connected to the codec 124 through the third transmission line 33 (for example, may be an I2S bus), the DSP223 decodes the audio encoded data packet into two channels of channel data, and sends the audio data played by the channel data corresponding to the headset 1 to the codec 124 through the third transmission line 33 for processing.

The foregoing is merely a specific embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A wireless headset, the wireless headset comprising a first headset and a second headset;

the first earphone 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 earphone includes: a second system chip;

a first transmission line is connected between the first system chip and the second system chip;

the first system chip is configured to be in wireless communication connection 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.

2. The wireless headset of claim 1, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

The first system chip includes: a first radio frequency circuit, a first short-range communication core, and a first digital signal processor; wherein the first radio frequency circuit is coupled to the first radio frequency antenna;

the second system chip includes: a second digital signal processor; wherein 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 transmit the first radio frequency signal to the first short-range 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 encoding data packet and transmit the second channel data to the second digital signal processor through the first transmission line.

3. The wireless headset of claim 2, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

the second system chip further includes: a second short-range communication core; the first short-distance communication core is connected with the second short-distance communication core through 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 through the second transmission line and to 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 speaker of the first earphone;

the second digital signal processor is specifically configured to play the second audio signal according to the first synchronization signal, and generate a second audio signal output to a speaker of the second earphone.

4. The wireless headset of claim 2, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

the second system chip further includes: a second radio frequency circuit and a second short-range 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-range 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 sent by the terminal device from the second radio frequency antenna and send 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 send the second signal quality parameter to the first short-distance communication core through the second transmission line;

the first short-range communication core is configured to determine to demodulate the first radio frequency signal into an audio coding data packet when the quality of the first radio frequency signal is determined to be better than the quality of the second radio frequency signal according to the first signal quality parameter and the second signal quality parameter.

5. The wireless headset of claim 3 or 4, wherein,

the second transmission line includes a universal asynchronous receiver transmitter UART bus.

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

7. The wireless headset of claim 1, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

The first system chip includes: a first radio frequency circuit, a first short-range communication core, and a first digital signal processor;

the second system chip includes: a second short-range 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 short-range communication core is configured to demodulate the first radio frequency signal into an audio coding data packet, send the audio coding data packet to the first digital signal processor, and send the audio coding data packet to the second short-range communication core through the first transmission line;

the second short-range communication core is configured to send the audio coding data packet to the second digital signal processor;

the first digital signal processor is configured to decode first channel data in the audio encoding data packet;

the second digital signal processor is configured to decode second sound data in the audio encoded data packet.

8. The wireless headset of claim 7, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

the first short-range communication core is further configured to send a first synchronization signal to the second short-range communication core through the first 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;

9. The wireless headset of claim 7, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

the second system chip further includes: a second radio frequency circuit; 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-range communication core is configured to determine a first signal quality parameter according to the first radio frequency signal;

the second short-distance communication core is configured to determine a second signal quality parameter according to the second radio frequency signal and send the second signal quality parameter to the first short-distance communication core through the first transmission line;

10. The wireless headset of any one of claims 7-9, wherein,

the first transmission line includes a universal asynchronous receiver transmitter UART bus.

11. The wireless headset of claim 1, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

The second system chip includes: a second short-range communication core and a second digital signal processor; the first radio frequency circuit 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-range communication core, and transmit the first radio frequency signal from the first transmission line to a second short-range communication core;

the first short-range communication core is configured to demodulate the first radio frequency signal into a first audio coding data packet and send the first audio coding data packet to the first digital signal processor;

the first digital signal processor is configured to decode first channel data from the first audio encoding data packet;

the second short-range communication core is configured to demodulate the first radio frequency signal into a second audio coding data packet and send the second audio coding data packet to the second digital signal processor;

a second digital signal processor configured to decode second audio data from the second audio encoded data packet.

12. The wireless headset of claim 11, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

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 configured to determine a first signal quality parameter according to the first radio frequency signal and send the first signal quality parameter to the second short-distance communication core through the second transmission line;

the first short-distance communication core is configured to determine to demodulate the first radio frequency signal into a first audio coding data packet when the quality of the first radio frequency signal is determined to be 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-range communication core is configured to determine to demodulate the first radio frequency signal into a second audio coding data packet when the quality of the first radio frequency signal is determined to be 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 headset of claim 11, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

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

15. The wireless headset of any one of claims 2-14, wherein,

the first system chip further comprises a first codec; 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 speaker of the first earphone, and transmit 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 reduction 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 at least one or more of the following processing on the second audio signal: active noise reduction ANC and equalization EQ.

16. The wireless headset of claim 1, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

the first system chip includes: a first radio frequency circuit, a first short-range communication core, a first digital signal processor, and a first codec; wherein the first radio frequency circuit is coupled to the first radio frequency antenna;

the second system chip includes: a second codec; the second decoder is connected with the first digital signal processor through the first transmission line;

the first digital signal processor is configured to decode first channel data and second channel data in the audio coding data packet;

The first digital signal processor is further 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 through the first transmission line;

17. The wireless headset of claim 16, wherein the wireless headset is configured to receive a wireless signal from a wireless communication device,

the second system chip further includes: a second radio frequency circuit, a second short-range communication core, and a second digital signal processor; 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;