Adapter for wireless sports earphone supporting low-delay bidirectional high-definition voice, earphone and system
By employing BLE Audio technology and a specially designed circuit for wireless gaming headsets and headphones, the problems of poor call quality and sound quality have been solved, achieving low latency and high-quality audio transmission.
Patent Information
- Application Number
- CN202422143079.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-09-02
AI Technical Summary
Existing wireless gaming headsets suffer from poor call quality and sound quality, especially those using 8K/16K sampling rate call audio solutions, which result in latency and poor sound quality.
It uses BLE Audio technology for audio transmission, combined with a special peripheral circuit structure design, including an adapter and headphone module, and uses components such as inductors, capacitors and antennas, along with a Bluetooth chip and overvoltage and overcurrent protection chip, to achieve low-latency two-way high-definition voice communication.
It achieves low-latency, low-power two-way high-definition voice transmission, improving call quality and sound quality, and supports uplink 32K and downlink 48K audio transmission.
Smart Images
Figure CN223639362U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model discloses a wireless earphone, in particular to a kind of low-delay two-way high-definition voice support wireless e-sports earphone adapter, earphone and system, belong to small electronic product technical field. BACKGROUND
[0002] Wireless earphone is the earphone of middle line being replaced by radio wave, and Bluetooth earphone is the typical representative of wireless earphone, and wireless earphone is not much different from wired earphone in tone quality, and wireless is more convenient, and mainly middle line is replaced by radio wave.
[0003] E-sports earphone is designed for e-sports, and mainly focuses on providing high-quality sound effect and comfortable wearing experience. Key feature requirements: provide clear sound effect and strong bass, reduce audio delay, ensure real-time feedback, ensure that long-time wearing is not easy to feel fatigue, and can clearly deliver voice, support noise cancellation.
[0004] Wireless earphone is applied in e-sports field, that is, wireless e-sports earphone, and the aspects mainly concerned by wireless e-sports earphone include tone quality, comfort, endurance and function, and different characteristics are concerned by each earphone manufacturer, and different selling points are formed. Most of the existing low-delay e-sports dongle adapter schemes adopt 8K / 16K sampling rate of talk audio, and the talk quality and tone quality are poor. SUMMARY
[0005] In view of the shortcomings of poor talk quality and poor tone quality of the wireless e-sports earphone in the prior art mentioned above, the utility model provides a kind of low-delay two-way high-definition voice support wireless e-sports earphone adapter, earphone and system, which uses BLEAudio technology to transmit audio, and can improve talk quality and tone quality by cooperating with special peripheral circuit structure design.
[0006] The technical scheme adopted by the utility model to solve its technical problems is: a kind of low-delay two-way high-definition voice support wireless e-sports earphone adapter, the adapter includes adapter central control module, adapter USB module, adapter antenna module and adapter key module, adapter antenna module is connected on the data end of adapter central control module, adapter USB module is connected on the data end of adapter central control module, and adapter key module is connected on the data end of adapter central control module.
[0007] A wireless radio game earphone supporting low-delay bidirectional high-definition voice, the earphone comprising an earphone central control module, an earphone USB module, an earphone antenna module and an earphone key module, the earphone antenna module being connected to a data end of the earphone central control module, the earphone USB module being connected to a data end of the earphone central control module, the earphone key module being connected to a data end of the earphone central control module, a left sound channel driving module and a right sound channel driving module being connected to a data port of the earphone central control module, and a main microphone and a noise reduction microphone being connected to an audio input interface of the earphone central control module.
[0008] A wireless radio game earphone system supporting low-delay bidirectional high-definition voice, the system comprising an adapter as described above and an earphone as described above, the adapter and the earphone performing wireless communication through a BLE Audio Bluetooth protocol.
[0009] The technical solution adopted by the utility model to solve its technical problems further comprises:
[0010] The adapter antenna module comprises an inductor LA1, an inductor LA2, a capacitor CA1, a capacitor CA2, a capacitor CA3, a capacitor CA4 and an antenna, the inductor LA1 and the inductor LA2 are connected in series between a TRX interface of a Bluetooth chip U2 and the antenna, the front and back ends of the inductor LA1 are connected with the capacitor CA1 and the capacitor CA2 between the ground respectively, the front and back ends of the inductor LA2 are connected with the capacitor CA3 and the capacitor CA4 between the ground respectively, and a trickle regulation module is connected between a VCC interface and an IOVCC interface of an adapter central control module.
[0011] An overvoltage and overcurrent protection chip U3 is connected to the adapter USB interface.
[0012] An NTC module is connected to a data port of the adapter central control module, the NTC module is connected to a special NTC interface of the adapter central control module, an LED indicator light module is connected to the data port of the adapter central control module, a universal asynchronous receiver-transmitter interface is connected to the data port of the adapter central control module, and an adapter test point is connected to the adapter central control module.
[0013] The key module comprises an adapter adjustment key module, an adapter switch key module and an adapter touch key module.
[0014] The earphone antenna module comprises an inductor LA1, an inductor LA2, a capacitor CA1, a capacitor CA2, a capacitor CA3, a capacitor CA4 and an antenna, the inductor LA1 and the inductor LA2 are connected in series between a TRX interface of a Bluetooth chip U2 and the antenna, the front and back ends of the inductor LA1 are connected with the capacitor CA1 and the capacitor CA2 between the ground respectively, and the front and back ends of the inductor LA2 are connected with the capacitor CA3 and the capacitor CA4 between the ground respectively.
[0015] The trickle adjustment module is connected between the VCC interface and the IOVCC interface of the earphone central control module, the earphone LED indicating lamp module is connected to the data port of the earphone central control module, the universal asynchronous receiver-transmitter interface is connected to the data port of the earphone central control module, and the adapter test point is connected to the earphone central control module.
[0016] The overvoltage and overcurrent protection chip U3 is connected to the earphone USB interface, the lithium battery BAT is connected with the power management chip U6, the power input end of the power management chip U6 is connected with the power output end of the overvoltage and overcurrent protection chip U3, and the power output end of the power management chip U6 is connected with the power end of the Bluetooth chip U2.
[0017] The audio transmission between the dongle adapter and the earphone in the utility model is realized through the BLE Audio technology, the audio transmission of 32K uplink and 48K downlink is supported, and low power consumption and low delay can be achieved.
[0018] The utility model will be further described in connection with the drawings and specific embodiments. DRAWINGS
[0019] Figure 1 It is the adapter circuit block diagram of the utility model.
[0020] Figure 2 It is the central control module circuit principle diagram of the adapter part of the utility model.
[0021] Figure 3 It is the power protection module circuit principle diagram of the adapter part of the utility model.
[0022] Figure 4 It is the antenna module circuit principle diagram of the adapter part of the utility model.
[0023] Figure 5 It is the trickle adjustment module circuit principle diagram of the adapter part of the utility model.
[0024] Figure 6 It is the USB module circuit principle diagram of the adapter part of the utility model.
[0025] Figure 7 It is the NTC module circuit principle diagram of the adapter part of the utility model.
[0026] Figure 8 It is the LED indicating lamp module circuit principle diagram of the adapter part of the utility model.
[0027] Figure 9The utility model discloses an adapter part general asynchronous transceiver interface and test interface module circuit principle drawing.
[0028] Figure 10 The utility model discloses an adapter part control button module circuit principle drawing.
[0029] Figure 11 The utility model discloses an adapter part switch button module circuit principle drawing.
[0030] Figure 12 The utility model discloses an adapter part touch button module circuit principle drawing.
[0031] Figure 13 The utility model discloses an earphone circuit block diagram.
[0032] Figure 14 The utility model discloses an adapter part central control module circuit principle drawing.
[0033] Figure 15 The utility model discloses an adapter part power protection module circuit principle drawing.
[0034] Figure 16 The utility model discloses an adapter part antenna module circuit principle drawing.
[0035] Figure 17 The utility model discloses an adapter part trickle adjustment module circuit principle drawing.
[0036] Figure 18 The utility model discloses an adapter part USB module circuit principle drawing.
[0037] Figure 19 The utility model discloses an adapter part battery module circuit principle drawing.
[0038] Figure 20 The utility model discloses an adapter part LED indicator light module circuit principle drawing.
[0039] Figure 21 The utility model discloses an adapter part power conversion module circuit principle drawing.
[0040] Figure 22 The utility model discloses an adapter part loudspeaker module circuit principle drawing.
[0041] Figure 23 The utility model discloses an adapter part silicon microphone module circuit principle drawing.
[0042] Figure 24 The utility model discloses an adapter part electret microphone module circuit principle drawing.
[0043] Figure 25The utility model discloses an adapter part control button module circuit principle diagram.
[0044] Figure 26 The utility model discloses an adapter part switch button module circuit principle diagram.
[0045] Figure 27 The utility model discloses an adapter part touch button module circuit principle diagram.
[0046] Figure 28 The utility model discloses an adapter part general asynchronous transceiver interface circuit principle diagram.
[0047] Figure 29 The utility model discloses an adapter part test interface module circuit principle diagram. Specific implementation
[0048] The embodiment is the preferred embodiment of the utility model, and other principles and basic structures that are same or similar to the embodiment are also within the protection scope of the utility model.
[0049] Please combine with the attached Figure 1 to the attached Figure 12 The utility model mainly protects a kind of wireless e-sports earphone adapter supporting low-delay bidirectional high-definition voice, which mainly includes adapter central control module, adapter USB module, adapter antenna module and adapter button module, adapter antenna module is connected on the data end of adapter central control module, for carrying out wireless communication with earphone through adapter antenna module, adapter USB module is connected on the data end of adapter central control module, for being connected with electronic equipment through USB interface, audio information is transmitted, meanwhile, power supply can be obtained from electronic equipment through USB interface to supply power to adapter, adapter button module is connected on the data end of adapter central control module, for inputting switch information and control information etc.
[0050] In the embodiment, adapter central control module selects the Bluetooth chip U1 with data processing function, and the quartz crystal oscillator Y2 is connected to the Bluetooth chip U1, the quartz crystal oscillator Y2 is connected to the clock interface of the Bluetooth chip U1, and the Bluetooth chip U1 can select the Bluetooth chip with the model WQ7034AX, which supports BLE Audio communication protocol, and other models of Bluetooth chip can also be selected according to actual needs during specific implementation. In the embodiment, since the Bluetooth chip U1 has relatively high requirement on power supply stability, filter capacitors are connected between each power input end and ground of the Bluetooth chip U1, and electrostatic tube (i.e. ESD static diode) can be selected between VCC end and ground of the Bluetooth chip U1 according to actual needs.
[0051] In this embodiment, the adapter antenna module includes inductance LA1, inductance LA2, capacitance CA1, capacitance CA2, capacitance CA3, capacitance CA4, and an antenna. The inductance LA1 and the inductance LA2 are connected in series between the TRX interface of the Bluetooth chip U2 and the antenna. The front and back ends of the inductance LA1 are connected with the capacitance CA1 and the capacitance CA2, respectively. The front and back ends of the inductance LA2 are connected with the capacitance CA3 and the capacitance CA4, respectively. In this embodiment, an electrostatic tube (i.e., an ESD static diode) can be selected to be connected to the TRX interface of the Bluetooth chip U1 and the antenna end according to actual needs.
[0052] In this embodiment, the I / O port voltage of the GPIO 1-2 and the GPIO 21-22 of the Bluetooth chip U1 follows the VCC, and the I / O port voltage of other GPIOs follows the IOVCC. The VCC interface and the IOVCC interface of the Bluetooth chip U1 are connected with a trickle regulation module. The trickle regulation module adopts the resistance R10 to adjust the size of the trickle current. The resistance R10 can be NC or R10>440K 20mA.
[0053] In this embodiment, the USB interface can adopt a general USB interface, a MINI USB interface, a Micro USB interface, or a TYPE_C interface. The specific interface to be adopted can be determined according to actual needs. The over-voltage and over-current protection chip U3 is connected to the USB interface to provide a stable voltage for the adapter. In this embodiment, the over-voltage and over-current protection chip U3 is selected to be the over-voltage and over-current protection chip of the HCP4803 type. In specific implementation, other types of over-voltage and over-current protection chips can also be selected. In this embodiment, an electrostatic tube (i.e., an ESD static diode) can be selected to be connected between the line and the ground of the USB interface according to actual needs.
[0054] In this embodiment, the data port of the adapter central control module is connected with an NTC module. The NTC module is connected to the dedicated NTC interface (i.e., the WIO1_LRADC1_NTC interface in this embodiment) of the Bluetooth chip U1. If there is no NTC interface of the Bluetooth chip, the NTC module can be connected to the general I / O port with ADC function of the Bluetooth chip. The internal temperature of the adapter can be detected through the NTC module. When the temperature is too high, a protection measure can be started.
[0055] In the embodiment, the data port of the adapter central control module is connected with an LED indicator module, the LED indicator module is directly connected to the I / O of the Bluetooth chip U1, in the embodiment, the LED indicator module includes a blue light LED and an orange light LED, the blue light LED is connected to the GPIO19_LED_BT interface of the Bluetooth chip U1, and the orange light LED is connected to the GPIO20_LED_MIC interface of the Bluetooth chip U1, and they are respectively used for indicating the working conditions of the Bluetooth and the microphone.
[0056] In the embodiment, the data port of the adapter central control module is connected with a universal asynchronous receiver-transmitter, the universal asynchronous receiver-transmitter adopts the GPIO6_UART0_RX interface and the GPIO6_UART0_TX interface of the Bluetooth chip U1, and in the specific implementation, other data interfaces can also be selected for simulation, and asynchronous serial communication can be performed through the universal asynchronous receiver-transmitter.
[0057] In the embodiment, the adapter central control module is connected with an adapter test point, the adapter test point includes a USB_5V interface, a VBAT interface, a USB_DP interface and a USB_DM interface, and some functions of the adapter are tested.
[0058] In the embodiment, the key module comprises an adapter adjustment key module, an adapter switch key module and an adapter touch key module. The adapter adjustment key module comprises a key switch KK1 (used for realizing a PREV function), a key switch KK2 (used for realizing a NEXT function), a key switch KK4 (used for realizing a MODE function), a key switch KK3 (used for realizing an F1 function), a key switch KK6 (used for realizing an F2 function), a key switch KK5 (used for realizing an F3 function), a key switch KK8 (used for realizing an F4 function), a key switch KK7 (used for realizing a VOL- function) and a key switch KK10 (used for realizing a VOL+ function). The key switch KK1, the key switch KK2, the key switch KK4, the key switch KK3, the key switch KK6, the key switch KK5, the key switch KK8, the key switch KK7 and the key switch KK10 are arranged in parallel. The key switch KK1 is connected in series with a resistor RS13. The key switch KK2 is connected in series with a resistor RS14. The key switch KK4 is connected in series with a resistor RS15. The key switch KK3 is connected in series with a resistor RS16. The key switch KK6 is connected in series with a resistor RS17. The key switch KK5 is connected in series with a resistor RS18. The key switch KK8 is connected in series with a resistor RS19. The key switch KK7 is connected in series with a resistor RS8. The key switch KK10 is connected in series with a resistor RS9. The resistors RS13, RS14, RS15, RS16, RS17, RS18, RS19, RS8 and RS9 have different resistance values. The resistors RS13, RS14, RS15, RS16, RS17, RS18, RS19, RS8 and RS9 are connected to a data port GPIO0_LRADC2 of the Bluetooth chip U1. The data port GPIO0_LRADC2 of the Bluetooth chip U1 is connected to a positive power supply VCC through a pull-up resistor RS23. Since the resistors RS13, RS14, RS15, RS16, RS17, RS18, RS19, RS8 and RS9 have different resistance values, the voltage value of the data port GPIO0_LRADC2 of the Bluetooth chip U1 can be used to determine which switch is turned on. In the embodiment, an electrostatic tube (i.e., an ESD static diode) can be selected to be connected between the data port GPIO0_LRADC2 of the Bluetooth chip U1 and the ground according to actual needs.In the embodiment, the adapter switch key module includes a key switch KK9 and a current limiting resistor RS27, the key switch KK9 and the current limiting resistor RS27 are connected in series between a positive power supply (SVCC) and a data port ONOFF_WI00 of the Bluetooth chip U1, and are used for controlling the switching on and off of the adapter, in the embodiment, an electrostatic tube (i.e. an ESD electrostatic diode) can be selected to be connected between the key switch KK9 and the current limiting resistor RS27 according to actual needs.
[0059] Please refer to the accompanying drawings Figure 13 and the accompanying drawings Figure 29 The utility model discloses a wireless e-sports earphone supporting low-delay bidirectional high-definition voice, which is used in cooperation with the adapter, and mainly includes an earphone central control module, an earphone USB module, an earphone antenna module and an earphone key module. The earphone antenna module is connected to the data end of the earphone central control module, and is used for wireless communication with the adapter through the earphone antenna module. The earphone USB module is connected to the data end of the earphone central control module, and is used for charging the earphone through the USB interface. The earphone key module is connected to the data end of the earphone central control module, and is used for inputting switching on and off information and control information, etc. In the embodiment, the earphone central control module uses a Bluetooth chip U2 with data processing function. The Bluetooth chip U2 is connected with a quartz crystal oscillator Y2, which is connected to the clock interface of the Bluetooth chip U2. The Bluetooth chip U2 can be a Bluetooth chip of model WQ7034AX, which supports BLE Audio communication protocol. In the actual implementation, other models of Bluetooth chips can also be selected according to actual needs. In the embodiment, the Bluetooth chip U2 has high requirements for power supply stability, and filter capacitors are connected between each power input end and the ground of the Bluetooth chip U2. An electrostatic tube (i.e. an ESD electrostatic diode) can be selected to be connected between the VCC end and the ground of the Bluetooth chip U2 according to actual needs.
[0060] In this embodiment, the earphone antenna module includes inductance LA1, inductance LA2, capacitance CA1, capacitance CA2, capacitance CA3, capacitance CA4 and an antenna, the inductance LA1 and the inductance LA2 are connected in series between the TRX interface of the Bluetooth chip U2 and the antenna, the front and back ends of the inductance LA1 are connected with the capacitance CA1 and the capacitance CA2 respectively, and the front and back ends of the inductance LA2 are connected with the capacitance CA3 and the capacitance CA4 respectively. In this embodiment, an electrostatic tube (namely an ESD static diode) can be selected to be connected to the TRX interface of the Bluetooth chip U2 and the antenna according to actual needs.
[0061] In this embodiment, the I / O port voltage of the GPIO 1-2 and the GPIO 21-22 of the Bluetooth chip U2 follows the VCC, the I / O port voltage of other GPIOs follows the IOVCC, a trickle adjustment module is connected between the VCC interface and the IOVCC interface of the Bluetooth chip U2, the trickle adjustment module adopts the resistance R10, the size of the trickle is adjusted through the resistance R10, and the resistance R10 can be NC or R10>440K 20mA.
[0062] In this embodiment, the USB interface adopts a TYPE_C interface, and in specific implementation, a MINI USB interface or a Micro USB interface can also be adopted, and an overvoltage and overcurrent protection chip U3 is connected to the USB interface, so as to provide a stable voltage for the adapter, in this embodiment, the overvoltage and overcurrent protection chip U3 is selected to be an overvoltage and overcurrent protection chip of the HCP4803 type, and in specific implementation, overvoltage and overcurrent protection chips of other types can also be selected. In this embodiment, an electrostatic tube (namely an ESD static diode) can be selected to be connected between the line and the ground of the USB interface according to actual needs. In this embodiment, a lithium battery BAT is adopted as an earphone power supply, the lithium battery BAT is connected with a power management chip U6, the charging and discharging of the lithium battery BAT is controlled through the power management chip U6, the power input end of the power management chip U6 is connected with the power output end of the overvoltage and overcurrent protection chip U3, and the power output end of the power management chip U6 is connected with the power end of the Bluetooth chip U2.
[0063] In this embodiment, an earphone LED indication lamp module is connected to the data port of the earphone central control module, and the earphone LED indication lamp module is directly connected to the I / O of the Bluetooth chip U2, in this embodiment, the LED indication lamp module includes a blue light LED, a red light LED and a green light LED, the blue light LED is connected to the GPIO19_LED_BT interface of the Bluetooth chip U2, the red light LED is connected to the GPIO20_LED_MIC interface of the Bluetooth chip U2, and the green light LED is connected to the GPIO18_LED_PWR interface of the Bluetooth chip U2, and are respectively used for indicating the working conditions of the Bluetooth, the microphone and the power supply.
[0064] In the embodiment, the earphone central control module is connected with the earphone left channel drive module and the earphone right channel drive module on the data port of the earphone central control module, the earphone left channel drive module directly adopts the AOUTLP interface of the Bluetooth chip U2 and the AOUTLN interface of the Bluetooth chip U2, the earphone left channel drive module is connected with the left loudspeaker, the earphone right channel drive module directly adopts the AOUTRP interface of the Bluetooth chip U2 and the AOUTRN interface of the Bluetooth chip U2, and the earphone right channel drive module is connected with the right loudspeaker.
[0065] In the embodiment, the MICIN_0P interface of the Bluetooth chip U2 and the MICIN_0N interface of the Bluetooth chip U2 are connected with the main microphone; the MICIN_1P interface of the Bluetooth chip U2 and the MICIN_1N interface of the Bluetooth chip U2 are connected with the noise reduction microphone (i.e. ENC_Background).
[0066] In the embodiment, the key module includes a headset adjustment key module, a headset switch key module and a headset touch key module. The headset adjustment key module includes a key switch KK1 (used for realizing a PREV function), a key switch KK2 (used for realizing a NEXT function), a key switch KK4 (used for realizing a MODE function), a key switch KK3 (used for realizing an F1 function), a key switch KK6 (used for realizing an F2 function), a key switch KK5 (used for realizing an F3 function), a key switch KK8 (used for realizing an F4 function), a key switch KK7 (used for realizing a VOL- function) and a key switch KK10 (used for realizing a VOL+ function). The key switch KK1, the key switch KK2, the key switch KK4, the key switch KK3, the key switch KK6, the key switch KK5, the key switch KK8, the key switch KK7 and the key switch KK10 are arranged in parallel. The key switch KK1 is connected in series with a resistor RS13. The key switch KK2 is connected in series with a resistor RS14. The key switch KK4 is connected in series with a resistor RS15. The key switch KK3 is connected in series with a resistor RS16. The key switch KK6 is connected in series with a resistor RS17. The key switch KK5 is connected in series with a resistor RS18. The key switch KK8 is connected in series with a resistor RS19. The key switch KK7 is connected in series with a resistor RS8. The key switch KK10 is connected in series with a resistor RS9. The resistors RS13, RS14, RS15, RS16, RS17, RS18, RS19, RS8 and RS9 have different resistance values. The resistors RS13, RS14, RS15, RS16, RS17, RS18, RS19, RS8 and RS9 are connected to a data port GPIO0_LRADC2 of the Bluetooth chip U2. The data port GPIO0_LRADC2 of the Bluetooth chip U2 is connected to a positive power supply VCC through a pull-up resistor RS23. Since the resistors RS13, RS14, RS15, RS16, RS17, RS18, RS19, RS8 and RS9 have different resistance values, the voltage value of the data port GPIO0_LRADC2 of the Bluetooth chip U2 can be used to determine which switch is turned on. In the embodiment, an electrostatic tube (i.e., an ESD static diode) can be selected to be connected between the data port GPIO0_LRADC2 of the Bluetooth chip U2 and the ground according to actual needs.In the embodiment, the earphone switch key module comprises a key switch KK9 and a current limiting resistor RS27, the key switch KK9 and the current limiting resistor RS27 are connected in series between a positive power supply (SVCC) and a data port ONOFF_WI00 of the Bluetooth chip U2, and are used for controlling the on-off of the earphone, in the embodiment, an electrostatic tube (namely, an ESD electrostatic diode) can be selected to be connected between the key switch KK9 and the current limiting resistor RS27 according to actual needs.
[0067] In the embodiment, the earphone central control module is connected with a universal asynchronous receiver-transmitter interface, the universal asynchronous receiver-transmitter interface adopts a GPIO6_UART0_RX interface and a GPIO6_UART0_TX interface of the Bluetooth chip U2, and in specific implementation, other data interfaces can also be selected to be simulated, and asynchronous serial communication can be performed through the universal asynchronous receiver-transmitter interface.
[0068] In the embodiment, the earphone central control module is connected with an adapter test point, the adapter test point comprises a USB_5V interface, a VBAT interface, a USB_DP interface and a USB_DM interface, and some functions of the earphone are tested.
[0069] The utility model discloses a kind of wireless e-sports earphone systems of supporting low-delay bidirectional high-definition voice, which comprises the above-mentioned adapter and earphone, and the adapter and earphone carry out wireless communication by BLE Audio Bluetooth protocol.
[0070] In the utility model, the audio transmission between Dongle adapter and earphone is through BLE Audio technology, supports uplink 32K, downlink 48K audio transmission, and can achieve low power consumption and low delay.
Claims
1. An adapter for a wireless radio headset that supports low latency bidirectional high-definition voice, characterized by: The adapter comprises an adapter central control module, an adapter USB module, an adapter antenna module and an adapter key module, the adapter antenna module is connected to the data end of the adapter central control module, the adapter USB module is connected to the data end of the adapter central control module, and the adapter key module is connected to the data end of the adapter central control module. The adapter antenna module comprises an inductor LA1, an inductor LA2, a capacitor CA1, a capacitor CA2, a capacitor CA3, a capacitor CA4 and an antenna, the inductor LA1 and the inductor LA2 are connected in series between the TRX interface of the Bluetooth chip U2 and the antenna, the front end and the rear end of the inductor LA1 are connected with the capacitor CA1 and the capacitor CA2 respectively, the front end and the rear end of the inductor LA2 are connected with the capacitor CA3 and the capacitor CA4 respectively, and a trickle current adjusting module is connected between the VCC interface and the IOVCC interface of the adapter central control module; the trickle current adjusting module adopts a resistor R10, the size of the trickle current is adjusted through the resistor R10, and the resistor R10 is greater than 440KΩ.
2. The adapter for low latency bidirectional high-definition voice capable wireless headsets of claim 1, wherein: The data port of the adapter central control module is connected with an NTC module, the NTC module is connected to the special NTC interface of the adapter central control module, the data port of the adapter central control module is connected with an LED indicator lamp module, the data port of the adapter central control module is connected with a universal asynchronous receiver-transmitter interface, and the adapter central control module is connected with an adapter test point. 3. The adapter for low latency bidirectional high-definition voice capable wireless headsets of claim 1, wherein: The key module comprises an adapter adjusting key module, an adapter switch key module and an adapter touch key module. 4. A headset for wireless radio headsets supporting low latency bidirectional high definition voice, characterized by: The earphone comprises an earphone central control module, an earphone USB module, an earphone antenna module and an earphone key module, the earphone antenna module is connected to the data end of the earphone central control module, the earphone USB module is connected to the data end of the earphone central control module, the earphone key module is connected to the data end of the earphone central control module, the data port of the earphone central control module is connected with an earphone left sound channel driving module and an earphone right sound channel driving module, and a main microphone and a noise reduction microphone are connected to the audio input interface of the earphone central control module; the earphone antenna module comprises an inductor LA1, an inductor LA2, a capacitor CA1, a capacitor CA2, a capacitor CA3, a capacitor CA4 and an antenna, the inductor LA1 and the inductor LA2 are connected in series between the TRX interface of the Bluetooth chip U2 and the antenna, the front end and the rear end of the inductor LA1 are connected with the capacitor CA1 and the capacitor CA2 respectively, the front end and the rear end of the inductor LA2 are connected with the capacitor CA3 and the capacitor CA4 respectively, and a trickle current adjusting module is connected between the VCC interface and the IOVCC interface of the adapter central control module; the trickle current adjusting module adopts a resistor R10, the size of the trickle current is adjusted through the resistor R10, and the resistor R10 is greater than 440KΩ.
5. The earphone for a radio headset that supports low latency bidirectional high-definition voice according to claim 4, characterized by: The earphone central control module is connected with a trickle regulation module between a VCC interface and an IOVCC interface, an earphone LED indicating lamp module is connected to a data port of the earphone central control module, a universal asynchronous receiver-transmitter interface is connected to the data port of the earphone central control module, and an adapter test point is connected to the earphone central control module.
6. A wireless radio headset system supporting low latency bidirectional high definition voice, characterized by: The system comprises the adapter according to any one of claims 1 to 3 and the earphone according to any one of claims 4 to 5, and the adapter and the earphone perform wireless communication through a BLE Audio Bluetooth protocol.