CN220108215U - Wireless earphone - Google Patents

Abstract

The utility model discloses a wireless earphone, which comprises a UWB module and a Bluetooth module; the UWB module is used for being paired with the UWB master equipment in a UWB mode and communicating with the UWB master equipment after the pairing connection is successful; the UWB module is connected with the Bluetooth module; the Bluetooth module is used for being paired with the Bluetooth main equipment in a Bluetooth mode and communicating with the Bluetooth main equipment after the pairing connection is successful. Therefore, the wireless earphone of the utility model utilizes the UWB module to communicate with UWB master equipment in UWB mode, the transmission bandwidth is high, the delay is low, the technical problems of low bandwidth and high delay of the earphone in the prior art are solved; and the Bluetooth module is utilized to communicate with the Bluetooth main equipment in the Bluetooth mode, so that the application range of the wireless earphone is improved, the use experience of a user is improved, and the product competitiveness is improved.

Description

Wireless earphone

Technical Field

The utility model belongs to the technical field of earphones, and particularly relates to a wireless earphone.

Background

With the popularization of high-definition audio and game resources in the multimedia content market, the high-definition audio requirement and the low-delay requirement of games for the traditional wireless earphone are gradually strong.

Traditional bluetooth headset is limited by bluetooth transmission protocol and transmission bandwidth, can't satisfy the current high code rate of audio frequency, low time delay's technical demand, seriously influences user's use experience, leads to the competitiveness of product poor.

Disclosure of Invention

The utility model provides a wireless earphone which solves the technical problems of low bandwidth and high delay of the earphone in the prior art.

In order to solve the technical problems, the utility model is realized by adopting the following technical scheme:

a wireless earphone comprises a UWB module and a Bluetooth module;

the UWB module is used for being connected with UWB main equipment in a pairing mode and communicating with the UWB main equipment after the pairing connection is successful; the UWB module is connected with the Bluetooth module;

and the Bluetooth module is used for being paired with the Bluetooth master equipment in a Bluetooth mode and communicating with the Bluetooth master equipment after the pairing connection is successful.

In some embodiments of the present utility model, the UWB module includes a UWB chip, a UWB radio frequency antenna module; the UWB chip is connected with the UWB radio frequency antenna module;

the Bluetooth module comprises a Bluetooth chip and a Bluetooth radio frequency antenna module; the Bluetooth chip is connected with the Bluetooth radio frequency antenna module;

the Bluetooth chip is connected with the UWB chip through an SPI bus.

In some embodiments of the present utility model, the bluetooth chip includes a bluetooth control circuit, a bluetooth transmitting circuit, and a bluetooth receiving circuit; the Bluetooth control circuit is respectively connected with the Bluetooth transmitting circuit and the Bluetooth receiving circuit, and the Bluetooth transmitting circuit and the Bluetooth receiving circuit are respectively connected with the Bluetooth radio frequency antenna module;

the UWB chip comprises a UWB control circuit, a UWB transmitting circuit and a UWB receiving circuit; the UWB control circuit is respectively connected with the UWB transmitting circuit and the UWB receiving circuit, and the UWB transmitting circuit and the UWB receiving circuit are respectively connected with the UWB radio-frequency antenna module;

the UWB control circuit is connected with the Bluetooth control circuit through an SPI bus.

In some embodiments of the utility model, the bluetooth module further comprises an analog-to-digital converter; the analog-to-digital converter is connected with the Bluetooth chip.

In some embodiments of the utility model, the analog-to-digital converter is integrated in the Bluetooth chip.

In some embodiments of the present utility model, the bluetooth module further includes a codec, and the codec is connected to the bluetooth chip.

In some embodiments of the utility model, the codec is integrated in the bluetooth chip.

In some embodiments of the present utility model, the wireless earphone further includes a peripheral interface, and the peripheral interface is connected to the bluetooth chip.

In some embodiments of the present utility model, in UWB mode, a UWB downlink communication link and a UWB uplink communication link are established between the UWB module and the UWB master;

the UWB module is used for receiving signals sent by the UWB master equipment through the UWB downlink communication link and transmitting the signals to the Bluetooth module; the Bluetooth module is also used for transmitting the received signals sent by the Bluetooth module to the UWB master equipment through the UWB uplink communication link;

the Bluetooth module is used for transmitting the received signals sent by the UWB module to a loudspeaker; and the device is also used for receiving signals sent by the microphone and sending the signals to the UWB module.

In some embodiments of the present utility model, in a bluetooth mode, a bluetooth downlink communication link and a bluetooth uplink communication link are established between a bluetooth module of a first headset of the wireless headset and the bluetooth master device; a monitoring link is established between a Bluetooth module of a second earphone of the wireless earphone and the Bluetooth master device;

the Bluetooth module of the first earphone is used for receiving the signal sent by the Bluetooth main equipment through the Bluetooth downlink communication link, processing the received signal and then sending the processed signal to the loudspeaker of the first earphone; the Bluetooth communication device is also used for processing the received signals sent by the microphone of the first earphone and then transmitting the processed signals to the Bluetooth master device through the Bluetooth uplink communication link;

and the Bluetooth module of the second earphone is used for monitoring signal transmission between the Bluetooth main equipment and the first earphone through the monitoring link, processing the monitored signal and sending the processed signal to a loudspeaker of the second earphone.

Compared with the prior art, the utility model has the advantages and positive effects that: according to the wireless earphone, the UWB module and the Bluetooth module are arranged; the UWB module is used for being paired with the UWB master equipment in a UWB mode and communicating with the UWB master equipment after the pairing connection is successful; the UWB module is connected with the Bluetooth module; the Bluetooth module is used for being paired with the Bluetooth main equipment in a Bluetooth mode and communicating with the Bluetooth main equipment after the pairing connection is successful. Therefore, the wireless earphone of the utility model utilizes the UWB module to communicate with UWB master equipment in UWB mode, the transmission bandwidth is high, the delay is low, the technical problems of low bandwidth and high delay of the earphone in the prior art are solved; and the Bluetooth module is utilized to communicate with the Bluetooth main equipment in the Bluetooth mode, so that the application range of the wireless earphone is improved, the use experience of a user is improved, and the product competitiveness is improved.

Other features and advantages of the present utility model will become more apparent from the following detailed description of embodiments of the present utility model, which is to be read in connection with the accompanying drawings.

Drawings

FIG. 1 is a block diagram of one embodiment of a wireless headset according to the present utility model;

FIG. 2 is a schematic diagram of a communication link in UWB mode;

FIG. 3 is a flow chart of audio transmission in UWB mode;

FIG. 4 is a schematic diagram of a communication link in Bluetooth mode;

fig. 5 is a flowchart of audio transmission in bluetooth mode.

Reference numerals:

11. a UWB radio frequency antenna module; 12. a Bluetooth radio frequency antenna module;

21. a UWB radio frequency antenna module; 22. bluetooth radio frequency antenna module.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The wireless earphone of the present embodiment includes a first earphone (e.g., a left earphone) and a second earphone (e.g., a right earphone).

The hardware configuration of both headphones is the same. The first earpiece and the second earpiece each include a UWB module, a bluetooth module, a Speaker (Speaker), a Microphone (MIC), etc., as shown in fig. 1. In each earphone, the Bluetooth module is respectively connected with the UWB module, the loudspeaker and the microphone.

The wireless earphone can work in a UWB mode and communicate with UWB main equipment by using a UWB module; and the system can also work in a Bluetooth mode, and communicate with a Bluetooth main device by utilizing a Bluetooth module.

The UWB module is used for being connected with the UWB master equipment in a pairing mode and communicating with the UWB master equipment after the pairing connection is successful; the UWB module is connected with the Bluetooth module.

And the Bluetooth module is used for being paired with the Bluetooth main equipment in the Bluetooth mode and communicating with the Bluetooth main equipment after the pairing connection is successful.

The UWB working mode of the wireless earphone is a one-to-two mode, namely, one UWB master device establishes physical connection with two earphones at the same time, the playing beats of the two earphones are synchronous, and the data transmission is controlled and scheduled by the UWB master device. The physical connection between the two headphones and the UWB master is completely symmetrical.

For each earpiece, in UWB mode of operation:

the UWB module is used for receiving the audio data sent by the UWB master equipment and transmitting the audio data to the Bluetooth module after the UWB master equipment is successfully paired and connected; and the device is also used for receiving the data sent by the Bluetooth module and uploading the data to the UWB master equipment.

The Bluetooth module is used for receiving the audio data sent by the UWB module and sending the audio data to the loudspeaker; and the device is also used for receiving the audio data sent by the microphone and sending the audio data to the UWB module.

After the pairing connection is completed between the UWB master device and the two earphones, the audio transmission flow is started to be executed. The audio transmission procedure includes, for each earphone, a UWB mode downlink transmission procedure and a UWB mode uplink transmission procedure.

UWB mode downlink transmission process (play flow): after the UWB module and the UWB master equipment are successfully paired and connected, the UWB module receives audio data sent by the UWB master equipment and then transmits the audio data to the Bluetooth module; the Bluetooth module receives the audio data sent by the UWB module and sends the audio data to the loudspeaker.

UWB mode uplink transmission process (recording flow): the Bluetooth module receives the audio data sent by the microphone and sends the audio data to the UWB module. And the UWB module receives the data sent by the Bluetooth module and uploads the data to the UWB master device.

The PCM format audio data is transmitted between the UWB module and the UWB master device.

In order to improve the application range of the wireless earphone, the wireless earphone can also communicate with the Bluetooth main equipment by utilizing the Bluetooth module, and the wireless earphone works in a Bluetooth mode.

In bluetooth mode of operation:

the Bluetooth module is used for receiving the Bluetooth data sent by the Bluetooth master device after the Bluetooth module is successfully paired with the Bluetooth master device, processing the received Bluetooth data and sending the processed Bluetooth data to the loudspeaker; and the Bluetooth device is also used for receiving the audio data sent by the microphone, processing the received audio data and uploading the processed audio data to the Bluetooth master device.

The Bluetooth working mode adopts a Bluetooth data transmission framework of a standard TWS earphone, and Bluetooth main equipment is equipment such as a smart phone, a notebook computer and the like.

The communication between the UWB module and the UWB master equipment adopts UWB ultra-wideband transmission technology, and the technology utilizes the self transmission bandwidth and low delay characteristic of the technology, so that the technical pain point of the traditional Bluetooth headset is solved, and the technical problem of insufficient transmission bandwidth and delay performance of the headset in the prior art is solved. Moreover, the wireless earphone of the present embodiment is still designed with the bluetooth module in view of the popularity of UWB and market iteration in design, so as to maintain compatibility with conventional bluetooth transmissions.

The wireless earphone of the embodiment is provided with a UWB module and a Bluetooth module; the UWB module is used for being paired with the UWB master equipment in a UWB mode and communicating with the UWB master equipment after the pairing connection is successful; the UWB module is connected with the Bluetooth module; the Bluetooth module is used for being paired with the Bluetooth main equipment in a Bluetooth mode and communicating with the Bluetooth main equipment after the pairing connection is successful. Therefore, the wireless earphone of the embodiment utilizes the UWB module to communicate with UWB main equipment in UWB mode, has high transmission bandwidth and low delay, and solves the technical problems of low bandwidth and high delay of the earphone in the prior art; and the Bluetooth module is utilized to communicate with the Bluetooth main equipment in the Bluetooth mode, so that the application range of the wireless earphone is improved, the use experience of a user is improved, and the product competitiveness is improved.

In some embodiments of the utility model, the UWB module comprises a UWB chip, a UWB radio frequency antenna module; the UWB chip is connected with the UWB radio frequency antenna module.

The Bluetooth module comprises a Bluetooth chip and a Bluetooth radio frequency antenna module; the Bluetooth chip is respectively connected with the Bluetooth radio frequency antenna module, the loudspeaker and the microphone.

The Bluetooth chip is connected with the UWB chip through an SPI bus. And data transmission is carried out between the Bluetooth chip and the UWB chip through an SPI bus.

The SPI bus has the advantages of high transmission speed, strong instantaneity and simple hardware interface, and is convenient for rapidly transmitting data between the Bluetooth chip and the UWB chip.

In particular the number of the elements,

the UWB module of the first earphone comprises a UWB chip and a UWB radio frequency antenna module 11; the bluetooth module of the first earphone includes a bluetooth chip, bluetooth radio frequency antenna module 12; see fig. 1.

The UWB module of the second earphone includes a UWB chip, UWB radio frequency antenna module 21; the bluetooth module of the second earphone includes a bluetooth chip, bluetooth radio frequency antenna module 22; see fig. 1.

In some embodiments of the present utility model, the bluetooth chip includes a bluetooth control circuit, a bluetooth transmitting circuit, and a bluetooth receiving circuit; the Bluetooth control circuit is respectively connected with the Bluetooth transmitting circuit, the Bluetooth receiving circuit, the loudspeaker and the microphone, and the Bluetooth transmitting circuit and the Bluetooth receiving circuit are respectively connected with the Bluetooth radio frequency antenna module.

In the Bluetooth mode, the Bluetooth radio frequency antenna module receives signals sent by the Bluetooth main equipment, and sends the received signals to the Bluetooth receiving circuit, and the Bluetooth receiving circuit processes the received signals and sends the processed signals to the Bluetooth control circuit.

The Bluetooth control circuit sends signals to be sent to the Bluetooth transmitting circuit, and the Bluetooth transmitting circuit processes the received signals and sends the processed signals to the Bluetooth radio frequency antenna module, and the processed signals are sent to the Bluetooth main equipment through the Bluetooth radio frequency antenna module.

In some embodiments of the present utility model, the UWB chip includes UWB control circuitry, UWB transmitting circuitry, UWB receiving circuitry; the UWB control circuit is respectively connected with the UWB transmitting circuit and the UWB receiving circuit, and the UWB transmitting circuit and the UWB receiving circuit are respectively connected with the UWB radio-frequency antenna module.

The UWB control circuit is connected with the Bluetooth control circuit through an SPI bus.

In the UWB mode, the UWB radio frequency antenna module receives signals sent by UWB main equipment and sends the received signals to the UWB receiving circuit, and the UWB receiving circuit processes the received signals and sends the processed signals to the UWB control circuit. The UWB control circuit transmits the received signals to the Bluetooth control circuit, and then the signals are decoded and analog-to-digital converted and sent to the loudspeaker.

The Bluetooth control circuit sends signals to be sent to the UWB control circuit, the UWB control circuit sends the signals to be sent to the UWB master device to the UWB transmitting circuit, the UWB transmitting circuit processes the received signals and sends the processed signals to the UWB radio frequency antenna module, and the processed signals are sent to the UWB master device through the UWB radio frequency antenna module.

Through designing bluetooth chip into bluetooth control circuit, bluetooth transmitting circuit, bluetooth receiving circuit, the function realization of each circuit of being convenient for is convenient for moreover the inner space overall arrangement of bluetooth chip, can reduce the size of bluetooth chip.

By designing the UWB chip into the UWB control circuit, the UWB transmitting circuit and the UWB receiving circuit, the functions of the circuits are conveniently realized, the internal space layout of the UWB chip is convenient, and the size of the UWB chip can be reduced.

In some embodiments of the present utility model, to facilitate analog-to-digital conversion of data, the bluetooth module further includes an analog-to-digital converter (ADC); the analog-to-digital converter is connected with the Bluetooth chip. Specifically, the analog-to-digital converter is connected with a Bluetooth control circuit of the Bluetooth chip.

The Bluetooth chip transmits the received digital audio data sent by the UWB chip to the analog-to-digital converter, converts the digital audio data into analog audio data through the analog-to-digital converter and sends the analog audio data to the loudspeaker.

The Bluetooth chip transmits the received analog audio data sent by the microphone to the analog-to-digital converter, converts the analog audio data into digital audio data through the analog-to-digital converter and sends the digital audio data to the UWB chip.

In some embodiments of the present utility model, the analog-to-digital converter is integrated in the bluetooth chip, so as to reduce the line connection between the bluetooth chip and other devices, and avoid the occurrence of faults due to the line connection.

In order to facilitate the encoding and decoding of data, the bluetooth module further includes a Codec (Codec) connected to the bluetooth chip. Specifically, the codec is connected to a bluetooth control circuit of the bluetooth chip.

The codec is used for encoding and decoding data. The codec includes an encoder and a decoder.

The codec is used for decoding received Bluetooth data (data in Bluetooth audio format) to generate audio data (audio data in PCM format); the codec is also used for encoding the received audio data to generate Bluetooth data.

Namely, the codec is used for decoding the Bluetooth audio format data to generate PCM format audio data; and is also used for encoding the PCM format audio data to generate Bluetooth audio format data.

In some embodiments of the present utility model, the codec is integrated in the bluetooth chip, so as to reduce the line connection between the bluetooth chip and other devices, and avoid the occurrence of faults due to the line connection.

The bluetooth module of the first earphone includes a bluetooth chip, a bluetooth radio frequency antenna module 12, an analog-to-digital converter (ADC) and a Codec (Codec).

The bluetooth module of the second earphone includes a bluetooth chip, a bluetooth radio frequency antenna module 22, an analog-to-digital converter (ADC) and a Codec (Codec).

As a preferred embodiment of the present embodiment, both the analog-to-digital converter and the codec are integrated in the bluetooth chip. That is, the bluetooth chip includes a bluetooth control circuit, a bluetooth transmitting circuit, a bluetooth receiving circuit, an analog-to-digital converter, and a codec.

In order to facilitate connection of the headset with the peripheral, the wireless headset further comprises a peripheral interface, and the headset functions are extended. Namely, the first earphone and the second earphone both comprise peripheral interfaces, and the peripheral interfaces are connected with the Bluetooth chip.

The peripheral interface of the first earphone is connected with the Bluetooth chip of the first earphone, and the peripheral interface of the second earphone is connected with the Bluetooth chip of the second earphone.

The peripheral interface is used for connecting with a peripheral device so as to facilitate the communication between the peripheral device and the Bluetooth chip and expand the functions of the earphone. Specifically, the peripheral interface is connected with a Bluetooth control circuit of the Bluetooth chip.

In some embodiments of the present utility model, to facilitate communications between the headset and the UWB master, a UWB downlink communication link and a UWB uplink communication link are established between the UWB module and the UWB master in UWB mode.

The UWB module is used for receiving signals sent by the UWB master equipment through a UWB downlink communication link and transmitting the signals to the Bluetooth module; and the device is also used for uploading the received signals sent by the Bluetooth module to the UWB master equipment through the UWB uplink communication link.

The Bluetooth module is used for transmitting the received signals sent by the UWB module to the loudspeaker; and the device is also used for receiving signals sent by the microphone and sending the signals to the UWB module.

In particular the number of the elements,

establishing a UWB communication link between a UWB module of the first earphone and a UWB master device: UWB downlink communication link 402 and UWB uplink communication link 403, see fig. 2.

Establishing a UWB communication link between the UWB module of the second earphone and the UWB master device: UWB downlink communication link 410 and UWB uplink communication link 411, see fig. 2.

The UWB downlink communication link and the UWB uplink communication link may both directly transmit digital audio data in PCM format.

The audio transmission flow comprises a UWB mode downlink transmission process and a UWB mode uplink transmission process.

Specific steps of the UWB mode downlink transmission procedure are shown in fig. 3.

Step 501: the UWB master (UWB Host) transmits audio data. The UWB master transmits the packetized PCM data to the two headsets over UWB downlink communication links 402 and 410, respectively.

Step 502: the UWB modules of the two headphones receive PCM data, respectively.

Step 503: the digital signal is converted into analog audio data. After receiving the PCM data, UWB chips of the two earphones transmit the PCM data to the Bluetooth chip through the SPI bus, and an analog-to-digital converter is integrated in the Bluetooth chip and converts the PCM data into analog audio data after digital-to-analog conversion.

Step 504: the Bluetooth chip transmits the analog audio data to the loudspeaker, and plays and outputs the analog audio data through the loudspeaker.

PCM data sent by the UWB master to the two headphones includes left channel audio data and right channel audio data. The bluetooth chips of the two headphones extract the respective single-channel audio data (left ear extracts left-channel audio data, right ear extracts right-channel audio data).

Specific steps of the UWB mode uplink transmission procedure are shown in fig. 3.

Both headphones support audio uplink transmission, and the wireless headphones can support binaural recording.

Step 505: the microphones of the two earphones respectively collect analog audio signals and transmit the analog audio signals to the Bluetooth chip.

Step 506: the Bluetooth chip converts the received data into PCM data, and the PCM data is directly packaged and transmitted to the UWB chip through the SPI bus.

Step 507: the UWB chips of the two headsets transmit upstream audio data to the UWB master via UWB upstream communication links 403 and 411, respectively.

Step 508: the UWB master receives upstream audio data from both headphones.

Step 509: and the UWB main equipment synthesizes the received audio data of the two earphones into a double-channel recording according to the rules of the left channel and the right channel.

In some embodiments of the present utility model, in order to facilitate communications between the headset and the bluetooth master device, in a bluetooth mode, a bluetooth downlink communication link and a bluetooth uplink communication link are established between the bluetooth module of the first headset and the bluetooth master device; and a monitoring link is established between the Bluetooth module of the second earphone and the Bluetooth master device.

The Bluetooth module of the first earphone is used for receiving signals sent by the Bluetooth main equipment through a Bluetooth downlink communication link, processing the received signals and then sending the processed signals to the loudspeaker of the first earphone; and the Bluetooth communication device is also used for processing the received signals sent by the microphone of the first earphone and then transmitting the processed signals to the Bluetooth master device through the Bluetooth uplink communication link.

And the Bluetooth module of the second earphone is used for monitoring signal transmission between the Bluetooth main equipment and the first earphone through the monitoring link, processing the monitored signal and then sending the processed signal to the loudspeaker of the second earphone.

That is, the first earphone is a master earphone, and the second earphone is a slave earphone, so that the stability and reliability of Bluetooth communication between the wireless earphone and the Bluetooth master device are ensured.

That is, the bluetooth module of the main earphone is configured to be connected with the bluetooth main device in a pairing manner, receive bluetooth data sent by the bluetooth main device after the pairing connection is successful, process the received bluetooth data, and send the processed bluetooth data to the speaker of the main earphone; and the Bluetooth master device is also used for processing the received data sent by the microphone of the master earphone and uploading the processed data to the Bluetooth master device.

The Bluetooth module of the slave earphone is used for monitoring data transmission between the Bluetooth master equipment and the master earphone, processing the monitored Bluetooth data and then sending the processed Bluetooth data to the loudspeaker of the slave earphone.

A Bluetooth communication link is established between a Bluetooth module of the first earphone and a Bluetooth master device: a bluetooth downlink communication link 202 and a bluetooth uplink communication link 203, see fig. 4.

A listening link 204 is established between the bluetooth module of the second earpiece and the bluetooth master device, see fig. 4.

After the pairing connection is completed between the Bluetooth master device and the master earphone, the audio transmission process is started to be executed. The audio transmission flow comprises a Bluetooth mode downlink transmission process and a Bluetooth mode uplink transmission process.

Specific steps of the bluetooth mode downlink transmission procedure are shown in fig. 5.

Step 301: the bluetooth master transmits bluetooth data. The bluetooth master device transmits bluetooth data to the master headset via bluetooth downlink communication link 202.

Step 302: the Bluetooth module of the main earphone is directly connected with the Bluetooth main equipment to receive Bluetooth data. Meanwhile, the Bluetooth module of the slave earphone establishes a monitoring link 204 with the Bluetooth master device, and simultaneously monitors and receives data transmission between the Bluetooth master device and the master earphone.

Step 303: the decoder decodes the bluetooth data. After the earphone receives the Bluetooth data transmitted by the Bluetooth main equipment, the codec is utilized to carry out audio decoding, the data in Bluetooth audio format (SBC/AAC/aptX and the like) is converted into a PCM format, and the PCM format is a digital audio standard format and comprises left and right double-channel data.

Step 304: the bluetooth chips of the two headphones extract the respective single-channel audio data (left ear extracts left-channel audio data, and right ear extracts right-channel audio data).

Since the input signal of the speaker is an analog signal, PCM format data is converted into analog audio data through an analog-to-digital converter.

Step 305: the Bluetooth chip transmits the analog audio data to the loudspeaker, and plays and outputs the analog audio data through the loudspeaker.

Specific steps of the bluetooth mode uplink transmission procedure are shown in fig. 5.

The uplink of the bluetooth operation mode only supports the recording of the master earphone, and the slave earphone does not support the uplink data transmission.

Step 306: the microphone of the main earphone collects audio signals and transmits the audio signals to the Bluetooth chip.

In the case of an analog microphone, it is converted into a digital audio signal (PCM) by an analog-to-digital converter; in the case of a digital microphone, a digital audio signal (PCM) is directly output.

Step 307: the digital audio signal (PCM) is encoded into a data format (SBC/AAC/aptX, etc.) conforming to bluetooth transmission through a codec within the bluetooth chip and transmitted to the bluetooth chip.

Step 308: the bluetooth module of the master earphone sends uplink data to the bluetooth master device via the bluetooth uplink communication link 203.

Step 309: the Bluetooth master device receives the uplink audio data.

The wireless earphone solves the technical problems of insufficient transmission bandwidth and delay performance of the traditional Bluetooth, can transmit high-definition lossless audio, and ensures low delay performance of the earphone in a game mode; support the stereophonic sound recording; the low power consumption characteristic of UWB transmission is utilized, and the power consumption is obviously reduced compared with the traditional Bluetooth transmission; more flexible compatible UWB-specific devices and legacy bluetooth devices. The wireless earphone of the embodiment realizes high-definition and low-delay audio transmission.

The wireless earphone of this embodiment, every earphone includes bluetooth chip and UWB chip, and bluetooth chip and UWB chip possess independent radio frequency antenna module respectively. The Bluetooth chip and the UWB chip are connected through an SPI bus and complete data interaction. The Bluetooth chip is internally provided with a Codec and is responsible for encoding and decoding of audio data. Meanwhile, the Bluetooth chip is used as a central processing unit of the whole earphone, and is provided with a microphone, a loudspeaker and other peripheral devices Sensors.

It should be noted that the above description is not intended to limit the utility model, but rather the utility model is not limited to the above examples, and that variations, modifications, additions or substitutions within the spirit and scope of the utility model will be within the scope of the utility model.

Claims (10)

1. A wireless earphone comprises a UWB module and a Bluetooth module; the method is characterized in that:

the UWB module is used for being connected with UWB main equipment in a pairing mode and communicating with the UWB main equipment after the pairing connection is successful; the UWB module is connected with the Bluetooth module;

and the Bluetooth module is used for being paired with the Bluetooth master equipment in a Bluetooth mode and communicating with the Bluetooth master equipment after the pairing connection is successful.

2. The wireless headset of claim 1, wherein:

the UWB module comprises a UWB chip and a UWB radio frequency antenna module; the UWB chip is connected with the UWB radio frequency antenna module;

the Bluetooth module comprises a Bluetooth chip and a Bluetooth radio frequency antenna module; the Bluetooth chip is connected with the Bluetooth radio frequency antenna module;

the Bluetooth chip is connected with the UWB chip through an SPI bus.

3. The wireless headset of claim 2, wherein:

the Bluetooth chip comprises a Bluetooth control circuit, a Bluetooth transmitting circuit and a Bluetooth receiving circuit; the Bluetooth control circuit is respectively connected with the Bluetooth transmitting circuit and the Bluetooth receiving circuit, and the Bluetooth transmitting circuit and the Bluetooth receiving circuit are respectively connected with the Bluetooth radio frequency antenna module;

the UWB chip comprises a UWB control circuit, a UWB transmitting circuit and a UWB receiving circuit; the UWB control circuit is respectively connected with the UWB transmitting circuit and the UWB receiving circuit, and the UWB transmitting circuit and the UWB receiving circuit are respectively connected with the UWB radio-frequency antenna module;

the UWB control circuit is connected with the Bluetooth control circuit through an SPI bus.

4. The wireless headset of claim 2, wherein: the Bluetooth module further comprises an analog-to-digital converter; the analog-to-digital converter is connected with the Bluetooth chip.

5. The wireless headset of claim 4, wherein: the analog-to-digital converter is integrated in the Bluetooth chip.

6. The wireless headset of claim 2, wherein: the Bluetooth module further comprises a coder-decoder, and the coder-decoder is connected with the Bluetooth chip.

7. The wireless headset of claim 6, wherein: the codec is integrated in the bluetooth chip.

8. The wireless headset of claim 2, wherein: the wireless earphone further comprises a peripheral interface, and the peripheral interface is connected with the Bluetooth chip.

9. The wireless headset of any one of claims 1 to 8, wherein:

in a UWB mode, establishing a UWB downlink communication link and a UWB uplink communication link between the UWB module and the UWB master equipment;

the UWB module is used for receiving signals sent by the UWB master equipment through the UWB downlink communication link and transmitting the signals to the Bluetooth module; the Bluetooth module is also used for transmitting the received signals sent by the Bluetooth module to the UWB master equipment through the UWB uplink communication link;

the Bluetooth module is used for transmitting the received signals sent by the UWB module to a loudspeaker; and the device is also used for receiving signals sent by the microphone and sending the signals to the UWB module.

10. The wireless headset of any one of claims 1 to 8, wherein:

in a Bluetooth mode, a Bluetooth downlink communication link and a Bluetooth uplink communication link are established between a Bluetooth module of a first earphone of the wireless earphone and the Bluetooth master device; a monitoring link is established between a Bluetooth module of a second earphone of the wireless earphone and the Bluetooth master device;

the Bluetooth module of the first earphone is used for receiving the signal sent by the Bluetooth main equipment through the Bluetooth downlink communication link, processing the received signal and then sending the processed signal to the loudspeaker of the first earphone; the Bluetooth communication device is also used for processing the received signals sent by the microphone of the first earphone and then transmitting the processed signals to the Bluetooth master device through the Bluetooth uplink communication link;

and the Bluetooth module of the second earphone is used for monitoring signal transmission between the Bluetooth main equipment and the first earphone through the monitoring link, processing the monitored signal and sending the processed signal to a loudspeaker of the second earphone.