Headset and headset system

Abstract

The application discloses a headset and a headset system. The headset comprises a first earphone body, a second earphone body, and a head beam. The first earphone body is configured with a master control unit. The second earphone body is configured with a micro control unit and a plurality of peripheral function units. The micro control unit is configured to collect and control the state and operation of the plurality of peripheral function units. The head beam is rotatably connected to the first earphone body and the second earphone body. The micro control unit and the master control unit are connected through a serial communication bus to establish a bidirectional communication connection. The serial communication bus is arranged in the head beam. Thus, the micro control unit is added to the second earphone body, and the master control unit in the first earphone body is interacted through the serial communication bus. The centralized proxy management of the plurality of peripheral function units is realized. The number of signal wires between the first earphone body and the second earphone body is effectively reduced, and the number of signal wires in the head beam is further reduced.

Description

Technical Field

[0001] This application relates to the technical field of headphones, and more specifically, to a headset and a headset system. Background Technology

[0002] Headphones typically employ a control scheme with independent peripherals for the left and right ears. In related technologies, the right ear of a headphone houses the main control chip, while each functional module in the left ear requires independent wiring to connect to the main control chip in the right ear.

[0003] The aforementioned design results in a large number of wires (generally more than 10) running through the headband and at the connection points between the headband and the left and right ears. This leads to larger connection points and headband size, affecting appearance and wearing comfort; a high risk of wire tangling; complex assembly and welding processes; high cost; and the increased likelihood of wire connection errors due to the large number of wires. Furthermore, the concentrated wires can increase the probability of electromagnetic interference and audio noise. Additionally, the increased number of rotations at the connection points can cause wire breakage and functional failure. Utility Model Content

[0004] In view of the above problems, this application proposes a headset and a headset system that can solve the above problems.

[0005] In a first aspect, embodiments of this application provide a headset, which includes: a first earphone body equipped with a main control unit; a second earphone body equipped with a microcontroller unit and multiple peripheral functional units, wherein the microcontroller unit is configured to collect and control the status and operation of the multiple peripheral functional units; and a headband rotatably connected to the first earphone body and the second earphone body, wherein the microcontroller unit and the main control unit establish a bidirectional communication connection through a serial communication bus, and the serial communication bus is arranged inside the headband.

[0006] Secondly, embodiments of this application also provide a headphone system, which includes: the headphone described above and an external device.

[0007] The technical solution provided in this application includes a headset comprising: a first earpiece housing equipped with a main control unit; a second earpiece housing equipped with a microcontroller unit and multiple peripheral functional units, wherein the microcontroller unit is configured to acquire and control the status and operation of the multiple peripheral functional units; and a headband rotatably connected to the first and second earpiece housings. The microcontroller unit and the main control unit establish a bidirectional communication connection via a serial communication bus, which is located within the headband. Thus, by adding a microcontroller unit to the second earpiece housing and interacting with the main control unit in the first earpiece housing via the serial communication bus, centralized proxy management of multiple peripheral functional units is achieved, effectively reducing the number of signal wires between the first and second earpiece housings, and consequently reducing the number of signal wires within the headband. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments and drawings obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0009] Figure 1 A schematic diagram of the structure of a headset according to an embodiment of this application is shown.

[0010] Figure 2 A schematic diagram of another type of headset according to an embodiment of this application is shown.

[0011] Figure 3 A schematic diagram of the structure of a second earphone body according to an embodiment of this application is shown.

[0012] Figure 4 A schematic diagram of a button control unit according to an embodiment of this application is shown.

[0013] Figure 5 A schematic diagram of the structure of an LED status management unit according to an embodiment of this application is shown.

[0014] Figure 6 A schematic diagram of the structure of a battery NTC temperature detection unit according to an embodiment of this application is shown.

[0015] Figure 7 A schematic diagram of an overvoltage and overcurrent protection unit according to an embodiment of this application is shown.

[0016] Figure 8 A schematic diagram of the structure of a microcontroller unit according to an embodiment of this application is shown.

[0017] Figure 9 A schematic diagram of the structure of a headphone system provided in an embodiment of this application is shown. Detailed Implementation

[0018] To enable those skilled in the art to better understand the embodiments of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0019] The technical solutions of the present utility model will now be clearly and completely described with reference to the accompanying drawings.

[0020] This application provides a headset and a headset system. The headset includes: a first earpiece with a main control unit; a second earpiece with a microcontroller unit and multiple peripheral functional units, wherein the microcontroller unit is configured to collect and control the status and operation of the multiple peripheral functional units; and a headband rotatably connected to the first and second earpieces. The microcontroller unit and the main control unit establish a bidirectional communication connection through a serial communication bus, which is located within the headband.

[0021] Therefore, by adding a microcontroller unit in the second earphone body and interacting with the main control unit in the first earphone body via a serial communication bus, centralized proxy management of multiple peripheral functional units can be achieved, effectively reducing the number of signal wires between the first and second earphone bodies, and thus reducing the number of signal wires in the headband.

[0022] Please see Figure 1 , Figure 1 A schematic diagram of the structure of a headset according to an embodiment of this application is shown, as follows: Figure 1 As shown, the headset 100 includes a first earphone body 110 and a second earphone body 120. The first earphone body 110 and the second earphone body 120 are connected by a headband 130.

[0023] The first earpiece 110 can be either the left or right earpiece of the headset 100. Similarly, the second earpiece 120 can be either the left or right earpiece of the headset 100.

[0024] The headband 130 is rotatably connected between the first earphone body 110 and the second earphone body 120 via the rotating part A, and a serial communication bus is arranged between the first earphone body 110 and the second earphone body 120 within the headband 130.

[0025] Further, please refer to Figure 2 , Figure 2A schematic diagram of another type of headset according to an embodiment of this application is shown, as follows. Figure 2 As shown, the first earphone body 110 is equipped with a main control unit 111; the second earphone body 120 is equipped with a microcontroller unit 121 and multiple peripheral function units 122.

[0026] The microcontroller unit 121 is configured to collect and control the status and operation of multiple peripheral functional units 122. The microcontroller unit 121 and the main control unit 111 establish a bidirectional communication connection through a serial communication bus.

[0027] In some implementations, the main control unit 111 can be a main control chip.

[0028] In some implementations, the microcontroller unit 121 may be a microcontroller unit (MCU).

[0029] In some implementations, the plurality of peripheral functional units 122 include at least a number of the following: button control unit, LED status management unit, charging management unit, battery NTC temperature detection unit, battery encrypted communication unit, and overvoltage and overcurrent protection unit.

[0030] In one specific implementation, please refer to Figure 3 , Figure 3 A schematic diagram of the structure of a second earphone body according to an embodiment of this application is shown, as follows: Figure 3 As shown, the multiple peripheral functional units 122 include a button control unit, an LED status management unit, a charging management unit, a battery NTC temperature detection unit, a battery encrypted communication unit, and an overvoltage and overcurrent protection unit. The microcontroller unit performs centralized, agent-style management of the button control unit, LED status management unit, charging management unit, battery NTC temperature detection unit, battery encrypted communication unit, and overvoltage and overcurrent protection unit.

[0031] In one specific implementation, please refer to Figure 4 , Figure 4 A schematic diagram of a button control unit according to an embodiment of this application is shown, as follows: Figure 4 As shown, the first terminal (MCU_VCC) of the button control unit is connected to the microcontroller unit 121, the second terminal (PALY) of the button control unit is connected to the microcontroller unit 121, the third terminal (VOL-) of the button control unit is connected to the microcontroller unit 121, the fourth terminal (VOL+) of the button control unit is connected to the microcontroller unit 121, and the fifth terminal (KEY_ANC) of the button control unit is connected to the microcontroller unit 121.

[0032] In one specific implementation, please refer to Figure 5 , Figure 5 A schematic diagram of the structure of an LED status management unit according to an embodiment of this application is shown, as follows: Figure 5 As shown, the first end (LED1) of the LED status management unit is connected to the microcontroller unit 121, and the second end (LED2) of the LED status management unit is connected to the microcontroller unit 121.

[0033] In one specific implementation, please refer to Figure 6 , Figure 6 This paper shows a schematic diagram of the structure of a battery NTC temperature detection unit according to an embodiment of this application, as shown below. Figure 6 As shown, the first terminal (NTC) of the battery NTC temperature detection unit is connected to the microcontroller unit 121.

[0034] In one specific implementation, please refer to Figure 7 , Figure 7 This paper shows a schematic diagram of the structure of an overvoltage and overcurrent protection unit according to an embodiment of this application. Figure 7 As shown, the first terminal (D+) of the overvoltage and overcurrent protection unit is connected to the microcontroller unit 121, and the first terminal (D-) of the overvoltage and overcurrent protection unit is connected to the microcontroller unit 121.

[0035] In some implementations, the serial communication bus can be a serial communication method such as UART, I2C, SPI, or CAN.

[0036] In some embodiments, two signal wires are embedded in the head beam 130; the microcontroller unit 121 and the main control unit 111 establish a bidirectional communication connection through the signal wires.

[0037] In this application, a microcontroller unit 121 is added to the second earphone body 120 and connected to the main control unit 111 in the first earphone body 110 via a serial communication bus, thereby achieving centralized proxy management of multiple peripheral functional units 122. This eliminates the need for multiple peripheral functional units 122 to be individually connected to the main control unit 111 in the first earphone body 110 via signal wires, effectively reducing the number of signal wires embedded in the headband 130.

[0038] Furthermore, optionally, the microcontroller unit 121 and the main control unit 111 establish a bidirectional communication connection via a UART serial bus. The microcontroller unit 121 communicates with the main control unit 111 via the TX signal line and the RX signal line of the UART serial bus, eliminating the need for each peripheral functional unit 122 to have its own separate signal line for communication with the main control unit 111.

[0039] For example, in the prior art, the first earphone body 110 and the second earphone body 120 include at least 13 signal lines, such as a charging ICI2C SCL control line, a charging ICI2C SDA control line, a charging ICI2C interrupt control line, a battery NTC detection line, a battery encryption I2C SCL control line, a battery encryption I2C SDA control line, button 1, button 2, button 3, button 4, LED 1, LED 2, and LED 3. In this application, only two signal lines, the TX signal line and the RX signal line, are required, effectively reducing the number of signal lines connecting the first earphone body 110 and the second earphone body 120. This effectively reduces the cost of the headphone 100 wiring and improves the assembly yield of the headphone 100.

[0040] In some embodiments, a shielding layer is provided on the signal wires of the serial communication bus. Due to the design of the serial bus shielding layer, the EMI risk can be reduced to enhance the communication anti-interference capability between the first earphone body 110 and the second earphone body 120: the serial bus shielding layer design reduces the EMI risk.

[0041] Furthermore, since the number of signal lines connecting the first earphone body 110 and the second earphone body 120 is reduced, the diameter of the headband 130 can be adaptively reduced. Compared to the diameter of the headband 130 in the prior art, the diameter of the headband 130 of the headset 100 provided in this application can be reduced by approximately 40%. This makes the headset more compact and improves the user experience.

[0042] In some implementation methods, please refer to Figure 8 , Figure 8 A schematic diagram of the structure of a microcontroller unit according to an embodiment of this application is shown, as follows: Figure 8 As shown, the microcontroller unit 121 includes a first resistor R1 and a second resistor R2. The first resistor R1 has one end connected to a first pin of the microcontroller unit 121 and the other end connected to the RX signal line of the UART serial bus; the second resistor R2 has one end connected to a second pin of the microcontroller unit 121 and the other end connected to the TX signal line of the UART serial bus.

[0043] The first pin of the microcontroller unit 121 can be pin P3.2. The second pin of the microcontroller unit 121 can be pin P3.1.

[0044] Specifically, the microcontroller unit 121 is configured to generate a corresponding data message in response to a state change of any peripheral functional unit, and transmit the data message to the main control unit 111 via the TX signal line of the UART serial bus.

[0045] When the state of any of the peripheral functional units 122 changes, an electrical signal is generated; the microcontroller unit 121 is configured to determine the state change of any peripheral functional unit based on the electrical signal in order to generate a corresponding data message.

[0046] For example, when a user adjusts the volume using the second earphone body 120, the corresponding volume adjustment button changes from open to closed, generating a corresponding level signal (i.e., an electrical signal). When the corresponding pin of the microcontroller unit 121 detects this level signal, the microcontroller unit 121 encapsulates a command (i.e., generates a data message). The microcontroller unit 121 then transmits the data message to the main control unit 111 via the TX signal line of the UART.

[0047] In some implementations, the main control unit 111 can generate a corresponding response signal based on the received data message and transmit the response signal to the microcontroller unit 121 via the UART serial bus. The microcontroller unit 121 controls the corresponding peripheral function unit 122 based on the response signal.

[0048] For example, when a user adjusts the volume via the second earpiece 120, the microcontroller unit 121 generates a data message based on the electrical signal generated by the volume adjustment. The microcontroller unit 121 then transmits the data message to the main control unit 111 via the TX signal line of the UART. The main control unit 111 parses the data message, performs the corresponding operation, and generates a response signal to control the LED on the second earpiece 112 to flash. The response signal is transmitted to the microcontroller unit 121 via the UART serial bus. The microcontroller unit 121 parses the response signal and inputs a control level through the corresponding pin to make the LED flash, thus indicating to the user that the volume adjustment has been completed.

[0049] In some embodiments, the first earphone body 111 is also equipped with a Bluetooth unit. The main control unit 111 parses the data packets and generates media control commands. The Bluetooth unit is configured to respond to the sending command of the main control unit 111 and transmit the media control commands to an external device through the Bluetooth link.

[0050] In some implementations, the external device can be a computer or a mobile phone.

[0051] For example, when a user adjusts the volume through the second earphone body 120, the microcontroller unit 121 generates a data message based on the electrical signal generated by adjusting the volume. The microcontroller unit 121 then transmits the data message to the main control unit 111 through the TX signal line of the UART. The main control unit 111 parses the data message, generates a volume adjustment command, and transmits the volume command to an external device through the Bluetooth unit. The external device performs the corresponding operation according to the volume command.

[0052] In some implementations, the Bluetooth unit is also configured to receive control commands sent by an external device via a Bluetooth link; the main control unit 111 is configured to parse the control commands, generate change information, and transmit the change information to the second earpiece via a serial communication bus.

[0053] For example, a user can select the operation of "lighting up the LED light on the second earphone body" through an external device. The external device generates a control command and transmits the control command to the Bluetooth unit through the Bluetooth link. The Bluetooth unit then transmits it to the main control unit 111. The main control unit 111 parses the control command, generates change information, and transmits the change information to the microcontroller unit 121 through the serial communication bus. The microcontroller unit 121 parses the change information and then determines the corresponding peripheral function unit 122 based on the parsing result.

[0054] Optionally, the serial communication bus is an I2C communication bus, including an SCL clock line, an SDA data line, and an INT interrupt signal line. The microcontroller unit 121 communicates with the main control unit 111 through these three lines, eliminating the need for each peripheral functional unit 122 to have its own separate signal line for communication with the main control unit 111.

[0055] In some implementation methods, please continue to refer to Figure 7 The microcontroller unit 121 also includes a third resistor R3, a fourth resistor R4, and a fifth resistor R5. The third resistor R3 is connected at one end to a data line and at the other end to a third pin of the microcontroller unit 121; the fourth resistor R4 is connected at one end to a clock line and at the other end to a fourth pin of the microcontroller unit 121; and the fifth resistor R5 is connected at one end to an interrupt signal line and at the other end to a fifth pin of the microcontroller unit 121.

[0056] The third resistor R3, the fourth resistor R4, and the fifth resistor R5 are pull-up resistors. These resistors ensure that the data lines, clock lines, and interrupt signal lines remain at a high level when there is no device driving them.

[0057] The third pin can be pin P5.2. The fourth pin can be pin P5.3. The fifth pin can be pin P3.5.

[0058] Compared to the prior art, where each peripheral functional unit 122 requires a corresponding signal line, this application only requires three lines: SCL clock line, SDA data line, and INT interrupt signal line, effectively reducing the number of signal lines connecting the first earphone body 110 and the second earphone body 120.

[0059] Specifically, the microcontroller unit 121 is configured to generate a corresponding data message in response to a state change of any peripheral functional unit 122, store the data message in a local register, and then send an interrupt request to the master control unit 111 via the INT interrupt signal line; the master control unit 111 is configured to respond to the interrupt request and read the register via the I2C communication bus to obtain the data message.

[0060] When the state of any of the peripheral functional units 122 changes, an electrical signal is generated. The microcontroller unit 121 is configured to determine the state change of any peripheral functional unit 122 upon detecting the electrical signal, generate the corresponding data message, and store the data message in a local register. The microcontroller unit 121 is configured to output a low level through the INT interrupt signal line after storing the data message. The main control unit 111 is configured to respond to the level change of the INT interrupt signal line by reading the register through the I2C communication bus to obtain the data message.

[0061] For example, when a user adjusts the volume using the second earphone body 120, the corresponding volume adjustment button changes from open to closed, generating a corresponding level signal (i.e., an electrical signal). When the corresponding pin of the microcontroller unit 121 detects this level signal, the microcontroller unit 121 encapsulates a command (i.e., generates a data message) and stores the data message in a local register. After storing the data message, the microcontroller unit 121 outputs a low level through an interrupt signal line, so that the corresponding pin of the main control unit 111 detects the low level, and the main control unit 111 initiates a read operation to obtain the data message.

[0062] In some implementations, the main control unit 111 parses the received data packets, performs corresponding operations, generates corresponding feedback signals, and transmits the feedback signals to the microcontroller unit 121 via the I2C communication bus. The microcontroller unit 121 controls the corresponding peripheral function unit 122 according to the feedback signals.

[0063] For example, when a user adjusts the volume using the second earpiece 120, the corresponding volume adjustment button changes from open to closed, generating a corresponding level signal (i.e., an electrical signal). When the corresponding pin of the microcontroller unit 121 detects this level signal, the microcontroller unit 121 encapsulates a command (i.e., generates a data message) and stores the data message in its local register. After storing the data message, the microcontroller unit 121 outputs a low level through an interrupt signal line, causing the corresponding pin of the main control unit 111 to detect a low level. The main control unit 111 then initiates a read operation to obtain the data message. The main control unit 111 parses the data message, executes the corresponding operation, and generates a feedback signal to control the blinking of the LED on the second earpiece 112. This feedback signal is transmitted to the microcontroller unit 121 via the UART serial bus. The microcontroller unit 121 parses the feedback signal and inputs a control level through the corresponding pin to cause the LED to blink, indicating to the user that the volume adjustment has been completed.

[0064] In some implementations, the microcontroller unit 121 can also dynamically manage the power consumption of the peripheral functional unit 122 to effectively extend the standby time of the headset 100. Furthermore, since the microcontroller unit 121 supports modular upgrades, if additional peripheral functional units 122 are needed, only the MCU software protocol needs to be extended, thus enabling the design of the flexible headband 130.

[0065] Please see Figure 9 , Figure 9 This application provides a schematic diagram of the structure of a headset system 200, which includes the aforementioned headset 100 and an external device 210. Specifically:

[0066] In some implementations, the external device can be a computer or a mobile phone.

[0067] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working process of the headset 100 described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A headset, characterized in that The headset includes: The first earphone body is equipped with a main control unit; The second earpiece is equipped with a microcontroller unit and multiple peripheral functional units. The microcontroller unit is configured to collect and control the status and operation of the multiple peripheral functional units. The headband is rotatably connected to the first and second earphone bodies. The microcontroller unit and the main control unit establish a bidirectional communication connection through a serial communication bus, which is located inside the headband.

2. The headset of claim 1, wherein, The serial communication bus is a UART serial bus, which includes a TX signal line and an RX signal line.

3. The headset of claim 2, wherein, The microcontroller unit is configured to generate a corresponding data message in response to a state change of any of the peripheral functional units, and transmit the data message to the main control unit via the TX signal line of the UART serial bus.

4. The headset of claim 1, wherein, The serial communication bus is an I2C communication bus, which includes the SCL clock line, SDA data line, and INT interrupt signal line.

5. The headset of claim 4, wherein, The microcontroller unit is configured to generate a corresponding data message in response to a state change of any of the peripheral functional units, store the data message in a local register, and then send an interrupt request to the main control unit through the INT interrupt signal line. The main control unit is configured to respond to the interrupt request by reading the register through the I2C communication bus to obtain the data packet.

6. The headset of claim 2, wherein, The microcontroller unit includes: The first resistor has one end connected to the first pin of the microcontroller unit and the other end connected to the RX signal line of the UART serial bus. The second resistor R2 has one end connected to the second pin of the microcontroller unit and the other end connected to the TX signal line of the UART serial bus.

7. The headset of claim 4, wherein, The microcontroller unit also includes: The third resistor has one end connected to the data line and the other end connected to the third pin of the microcontroller unit. The fourth resistor has one end connected to the clock line and the other end connected to the fourth pin of the microcontroller unit. The fifth resistor has one end connected to the interrupt signal line and the other end connected to the fifth pin of the microcontroller unit.

8. The headset of claim 1, wherein, The signal wires of the serial communication bus are equipped with a shielding layer to reduce electromagnetic interference.

9. The headset of claim 1, wherein, The multiple peripheral functional units include at least one of the following: button control unit, LED status management unit, charging management unit, battery NTC temperature detection unit, battery encrypted communication unit, and overvoltage and overcurrent protection unit.

10. A headphone system, characterized by Includes the headphones and external devices as described in any one of claims 1-9.

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