Somatosensory operation bone conduction earphone control circuit and bone conduction earphone

Abstract

The utility model discloses a somatosensory operation bone conduction earphone control circuit. The somatosensory operation bone conduction earphone control circuit comprises a main control circuit; the power supply management circuit comprises a battery management circuit and a power supply circuit; the linear control circuit comprises a linear voltage stabilizer circuit and a six-axis sensor circuit; an audio circuit; the utility model provides a microphone circuit and a radio frequency circuit. The utility model also discloses a bone conduction earphone. According to the utility model, the main control circuit is arranged to carry out algorithm processing so as to identify head actions of a user and nodding times or head shaking times to carry out control actions, and the linear voltage regulator circuit and the six-axis sensor circuit are combined to form the linear control circuit to carry out data acquisition actions; and then corresponding acceleration and gyroscope data are output to the main control circuit for processing, judgment and control, so that the bone conduction earphone realizes somatosensory operation, the operation modes are increased, the operation convenience is improved, and the experience effect of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of earphone control circuit, concretely relates to a bone conduction earphone control circuit and bone conduction earphone of somatic sensation operation. BACKGROUND

[0002] Bone conduction is a kind of sound transmission mode, i.e. the electrical signal is converted into mechanical vibration, and the mechanical vibration is transmitted to the brain cortex auditory center through the skull to realize the transmission of sound wave. The bone conduction earphone receives the call using the bone conduction technology, is close to the skull, and the sound wave can be directly transmitted to the auditory nerve through the bone, without passing through the external auditory canal and eardrum, so that the both ears can be "liberated". The control mode of the existing bone conduction earphone is mostly the mechanical key control mode for function selection and control. The control mode is single. When the user is riding or running a marathon, it is not convenient to control the bone conduction earphone by using the hand to control the key, and there is a certain control limitation, which reduces the convenience of user control and affects the experience effect of the user. UTILITY MODEL CONTENT

[0003] The utility model provides a bone conduction earphone control circuit and bone conduction earphone of somatic sensation operation aiming at the technical deficiency of the prior art, and aims to solve the technical problems of single control mode and poor control convenience of the bone conduction earphone in the prior art.

[0004] The utility model discloses the technical scheme adopted for realizing the purpose is:

[0005] A bone conduction earphone control circuit of somatic sensation operation, including main control circuit, the main control circuit includes main control chip U1, and the main control chip U1 is used for the action of control and data processing;

[0006] Power management circuit, the power management circuit includes battery management circuit and power supply circuit, and the power management circuit is used for the control action of detecting the voltage of earphone battery and power supply charge and discharge, and the power management circuit is electrically connected with the main control chip U1;

[0007] Linear control circuit, the linear control circuit is used for outputting corresponding acceleration and gyroscope data to main control circuit, and the main control circuit makes control by algorithm processing and recognizing the action of user, and the linear control circuit is electrically connected with the main control chip U1;

[0008] Audio circuit, the audio circuit circuit is used for playing audio, and the audio circuit is electrically connected with the main control chip U1;

[0009] Microphone circuit, the microphone circuit is used for the action of collecting voice, so as to realize conversation, and the microphone circuit is electrically connected with the main control chip U1;

[0010] Radio frequency circuit, which is used for signal receiving and transmitting, so as to realize wireless connection of the terminal, and the radio frequency circuit is electrically connected with the main control chip U1.

[0011] Further improvement, the main control chip U1 is provided with a connection end BT-1V8, a connection end I2C and a connection end PMU; the linear control circuit includes a linear voltage stabilizer circuit and a six-axis sensor circuit, the linear voltage stabilizer circuit is provided with an EN connection end, the EN connection end of the linear voltage stabilizer circuit is electrically connected with the connection end BT-1V8, the linear voltage stabilizer circuit is electrically connected with the six-axis sensor circuit, and the linear voltage stabilizer circuit is in communication connection with the connection end I2C; the connection end PMU is used for mutual electrical connection with the linear voltage stabilizer circuit and the battery management circuit.

[0012] Further improvement, the linear voltage stabilizer circuit includes a chip U9, the chip U9 is provided with a VIN4 pin end, a VSS pin end, a CE pin end, a VOUT pin end and an EP pin end, the main control chip U1 is provided with a VSYS connection end and a 6AIX-CON connection end, the VSYS connection end is connected with the VIN4 pin end, and the 6AIX-CON connection end is connected with the CE pin end; the VOUT pin end and the EP pin end are connected, and a first capacitor is arranged between the VOUT pin end and the EP pin end.

[0013] Further improvement, the six-axis sensor circuit includes a chip U4, the chip U4 is provided with a VDD pin end, a VDDIO pin end, an INT1 pin end, an SCX pin end, an SDX pin end, an SDO / SAO pin end, an SDA pin end, an SCL pin end and a CS pin end; the SDA pin end, the SCL pin end and the CS pin end are connected with each other, the control chip U1 is provided with a 6AIX-SDA connection end and a 6AIX-SCL connection end, the 6AIX-SDA connection end is connected with the SDA pin end, and the 6AIX-SCL connection end is connected with the SCL pin end; the chip U4 is provided with a plurality of 1.8V-6AIXS connection ends, one of the 1.8V-6AIXS connection ends is connected with the chip U9.

[0014] Further improvement, the main control chip U1 is also provided with an I2C connection end one, which is in communication connection with the battery management circuit; the battery management circuit includes a chip U8, and the chip U8 is provided with an input end and an output end; the chip U8 is used for electrical connection of the battery and monitoring management;

[0015] The main control chip U1 is further provided with an ADC connecting end and a VCHG-SENSE connecting end, the ADC connecting end is used for connecting a battery, and the VCHG-SENSE connecting end is connected with the battery management circuit and the power supply circuit.

[0016] The power supply circuit comprises a chip NC and a module D4, the module D4 is electrically connected with the chip NC, and the power supply circuit is used for overcurrent and overvoltage protection.

[0017] Further improvement, the main control chip U1 is further provided with two MIC connecting ends, the MIC connecting end is electrically connected with the microphone circuit, the microphone circuit comprises a left microphone circuit and a right microphone circuit, the left microphone circuit and the right microphone circuit both comprise a first chip, the first chip is provided with a first connector, and the first connector is connected with the MIC connecting end.

[0018] Further improvement, the main control chip U1 is further provided with a TRB connecting end, the TRB connecting end is connected with a debugging port circuit, and the debugging port circuit is used for debugging.

[0019] The main control chip U1 is further provided with an AU-HP connecting end, the audio circuit is electrically connected with the AU-HP connecting end, and the audio circuit comprises two second chips, and the second chip is connected with the TRB connecting end.

[0020] Further improvement, the main control chip U1 is further provided with a GPIO connecting end and an LED-AIO connecting end, the GPIO connecting end is electrically connected with the chip U9, and the LED-AIO connecting end is connected with an LED module, and the LED module is electrically connected with the chip U9.

[0021] Further improvement, the main control chip U1 is further provided with an RTC connecting end, the RTC connecting end is connected with a patch passive crystal oscillator circuit, and the patch passive crystal oscillator circuit comprises a patch passive crystal oscillator chip.

[0022] Further improvement, the main control chip U1 is further provided with an RF-OUT connecting end, the RF-OUT connecting end is connected with a radio frequency circuit, and the radio frequency circuit comprises a radio frequency module, and the radio frequency module is provided with an antenna.

[0023] A bone conduction earphone comprises the somatosensory operation bone conduction earphone control circuit.

[0024] Compared with the prior art, the somatosensory operation bone conduction earphone control circuit and the bone conduction earphone provided by the embodiment of the utility model have at least one of the following technical effects.

[0025] This invention utilizes a main control circuit to process algorithms that recognize user head movements and the number of nods or shakes to control the device. Combined with a linear control circuit comprised of a linear regulator circuit and a six-axis sensor circuit, it collects data and outputs corresponding acceleration and gyroscope data to the main control circuit for processing and control. This enables motion-sensing operation of the bone conduction headphones, increasing operation methods and improving ease of use, thereby enhancing the user experience. Furthermore, the inclusion of a radio frequency circuit provides remote control, allowing the bone conduction headphones to be turned on or off via a mobile phone, further improving convenience. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the control circuit for the bone conduction headphones with motion-sensing operation in this embodiment.

[0028] Figure 2 This is a circuit diagram of the main control circuit in this embodiment;

[0029] Figure 3 This is a circuit diagram of the microphone circuit in this embodiment;

[0030] Figure 4 This is a circuit diagram of the linear control circuit in this embodiment;

[0031] Figure 5 This is a circuit diagram of the low-dropout linear regulator in this embodiment;

[0032] Figure 6 This is a circuit diagram of the power management circuit in this embodiment;

[0033] Figure 7 This is a circuit diagram of the LED module in this embodiment. Detailed Implementation

[0034] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0035] For examples, see the appendix. Figures 1-7A motion-sensing bone conduction headphone control circuit 1 includes a main control circuit 2, which includes a main control chip U1. The main control chip U1 is used for control and data processing. The main control chip U1 is a QCC3044 chip. The main control chip U1 can recognize the user's head movements and the number of nods or shakes through algorithm processing to perform control actions, thereby realizing motion-sensing operation, increasing operation methods, and improving the convenience of operation.

[0036] The power management circuit 3 includes a battery management circuit 30 and a power circuit 31. The power management circuit 3 is used to detect the voltage of the headphone battery and control the charging and discharging of the power supply. The power management circuit 3 is electrically connected to the main control chip U1.

[0037] Linear control circuit 4 is used to output corresponding acceleration and gyroscope data to main control circuit 2. Main control circuit 2 uses algorithm processing to identify user actions and perform control functions. Linear control circuit 4 is electrically connected to main control chip U1.

[0038] Audio circuit 5, the audio circuit 5 is used to play audio, and the audio circuit 5 is electrically connected to the main control chip U1;

[0039] Microphone circuit 6 is used to collect voice to enable dialogue. Microphone circuit 6 is electrically connected to the main control chip U1.

[0040] The radio frequency circuit 7 is used for signal reception and transmission, thereby realizing wireless connection to the terminal. The radio frequency circuit 7 is electrically connected to the main control chip U1.

[0041] The main control chip U1 has a connection terminal BT-1V8, a connection terminal I2C, and a connection terminal PMU; the linear control circuit 4 includes a linear regulator circuit 40 and a six-axis sensor circuit 41. The linear regulator circuit 40 has an EN connection terminal, which is electrically connected to the connection terminal BT-1V8. The linear regulator circuit 40 is also electrically connected to the six-axis sensor circuit 41 and is communicatively connected to the connection terminal I2C. The connection terminal PMU is used to electrically connect to the linear regulator circuit 40 and the battery management circuit 30.

[0042] The linear regulator circuit 40 includes a chip U9, which is an AW37103D180DNR type chip. The chip U9 has a VIN4 pin, a VSS pin, a CE pin, a VOUT pin, and an EP pin. The main control chip U1 has a VSYS connection terminal and a 6AIX-CON connection terminal. The VSYS connection terminal is connected to the VIN4 pin, and the 6AIX-CON connection terminal is connected to the CE pin. The VOUT pin is connected to the EP pin, and a first capacitor is provided between the VOUT pin and the EP pin.

[0043] The six-axis sensor circuit 41 includes a chip U4, which has pins VDD, VDDIO, INT1, SCX, SDX, SDO / SAO, SDA, SCL, and CS. Pins SDA, SCL, and CS are interconnected. The control chip U1 has a connection terminal 6AIX-SDA and a connection terminal 6AIX-SCL. The connection terminal 6AIX-SDA is connected to pin SDA, and the connection terminal 6AIX-SCL is connected to pin SCL. Chip U4 has multiple 1.8V-6AIXS connection terminals, one of which is connected to chip U9. Chip U4 is an LSM6DSO16ISTR type chip.

[0044] The main control chip U1 also has an I2C connection terminal, which is communicatively connected to the battery management circuit 30. The battery management circuit 30 includes a chip U8, which is an LS_IC_DA9168 chip. The chip U8 has an input terminal and an output terminal. The chip U8 is used for the electrical connection and monitoring and management of the battery. The main control chip U1 also has an ADC connection terminal and a VCHG-SENSE connection terminal. The ADC connection terminal is used to connect to the battery. The VCHG-SENSE connection terminal is connected to the battery management circuit 30 and the power supply circuit 31. The power supply circuit 31 includes a chip NC and a module D4. The module D4 is electrically connected to the chip NC. The power supply circuit 31 is used for overcurrent and overvoltage protection. The power supply circuit 31 also has a terminal connection terminal, which is used for electrical connection to an external charger.

[0045] The main control chip U1 is also provided with two MIC connection terminals, which are electrically connected to the microphone circuit 6. The microphone circuit 6 includes a left microphone circuit and a right microphone circuit. Both the left microphone circuit and the right microphone circuit include a first chip. Each first chip is provided with a first connector. The first connector is connected to the MIC connection terminal, and a microphone element is connected to the first chip.

[0046] The main control chip U1 is also provided with a TRB connection terminal, which is connected to a debugging port circuit 8 for debugging purposes; the main control chip U1 is also provided with an AU-HP connection terminal, and the audio circuit 5 is electrically connected to the AU-HP connection terminal; the audio circuit 5 includes two second chips, which are connected to the TRB connection terminal. The second chips are LS_IC_MAX98304 type chips, which are used for audio amplification and processing.

[0047] The main control chip U1 is also provided with a GPIO connection terminal and an LED-AIO connection terminal. The GPIO connection terminal is electrically connected to the chip U9. An LED module 9 is connected to the LED-AIO connection terminal. The LED module 9 is electrically connected to the chip U9. The LED module 9 is provided with multiple LED indicator lights. A low dropout linear regulator 400 is provided between the chip U9 and the GPIO connection terminal. The low dropout linear regulator is electrically connected to the main control chip U1.

[0048] The main control chip U1 is also provided with an RTC connection terminal, which is connected to a surface-mount passive crystal oscillator circuit 10. The surface-mount passive crystal oscillator circuit 10 includes a surface-mount passive crystal oscillator chip; the surface-mount passive crystal oscillator chip is a CRYSTAL type chip.

[0049] The main control chip U1 is also provided with an RF-OUT connection terminal, and the radio frequency circuit 7 is connected to the RF-OUT connection terminal; the radio frequency circuit 7 includes a radio frequency module, and the radio frequency module is provided with an antenna, which is used for signal reception and transmission; the radio frequency module is an LFB182G45SG9A272 radio frequency module.

[0050] A bone conduction headset includes a motion-sensing bone conduction headset control circuit 1. The bone conduction headset can perform experiential operations, thereby enabling the bone conduction headset to judge based on the number of times the head nods or shakes, and then realize functions such as switching between tracks, answering / hanging up calls, and answering calls.

[0051] This invention utilizes a main control circuit to process algorithms that recognize user head movements and the number of nods or shakes to control the device. Combined with a linear control circuit comprised of a linear regulator circuit and a six-axis sensor circuit, it collects data and outputs corresponding acceleration and gyroscope data to the main control circuit for processing and control. This enables motion-sensing operation of the bone conduction headphones, increasing operation methods and improving ease of use, thereby enhancing the user experience. Furthermore, the inclusion of a radio frequency circuit provides remote control, allowing the bone conduction headphones to be turned on or off via a mobile phone, further improving convenience.

[0052] This utility model is not limited to the above-described embodiments. Other bone conduction headphone control circuits and bone conduction headphones for motion-sensing operation obtained by using the same or similar structures or devices as the above-described embodiments of this utility model are all within the protection scope of this utility model.

Claims

1. A control circuit for motion-sensing bone conduction headphones, characterized in that: It includes a main control circuit, which includes a main control chip U1, and the main control chip U1 is used for control and data processing. A power management circuit, comprising a battery management circuit and a power supply circuit, wherein the power management circuit is used to detect the voltage of the earphone battery and control the charging and discharging of the power supply, and the power management circuit is electrically connected to the main control chip U1. A linear control circuit is provided, which outputs corresponding acceleration and gyroscope data to the main control circuit. The main control circuit uses an algorithm to process and identify the user's actions to perform control functions. The linear control circuit is electrically connected to the main control chip U1. An audio circuit, which is used to play audio, is electrically connected to the main control chip U1; A microphone circuit is used to collect voice data to enable dialogue. The microphone circuit is electrically connected to the main control chip U1. The radio frequency circuit is used for signal reception and transmission, thereby realizing wireless connection to the terminal. The radio frequency circuit is electrically connected to the main control chip U1.

2. The bone conduction headphone control circuit for motion-sensing operation according to claim 1, characterized in that: The main control chip U1 has a connection terminal BT-1V8, a connection terminal I2C, and a connection terminal PMU; the linear control circuit includes a linear regulator circuit and a six-axis sensor circuit. The linear regulator circuit has an EN connection terminal, which is electrically connected to the connection terminal BT-1V8. The linear regulator circuit is also electrically connected to the six-axis sensor circuit and is communicatively connected to the connection terminal I2C. The connection terminal PMU is used for electrical connection with the linear regulator circuit and the battery management circuit.

3. The bone conduction headphone control circuit for motion-sensing operation according to claim 2, characterized in that: The linear regulator circuit includes a chip U9, which has a VIN4 pin, a VSS pin, a CE pin, a VOUT pin, and an EP pin. The main control chip U1 has a VSYS connection terminal and a 6AIX-CON connection terminal. The VSYS connection terminal is connected to the VIN4 pin, and the 6AIX-CON connection terminal is connected to the CE pin. The VOUT pin is connected to the EP pin, and a first capacitor is provided between the VOUT pin and the EP pin.

4. The bone conduction headphone control circuit for motion-sensing operation according to claim 3, characterized in that: The six-axis sensor circuit includes a chip U4, which has pins VDD, VDDIO, INT1, SCX, SDX, SDO / SAO, SDA, SCL, and CS. Pins SDA, SCL, and CS are interconnected. The control chip U1 has a connection terminal 6AIX-SDA and a connection terminal 6AIX-SCL. The connection terminal 6AIX-SDA is connected to pin SDA, and the connection terminal 6AIX-SCL is connected to pin SCL. Chip U4 has multiple 1.8V-6AIXS connection terminals, one of which is connected to chip U9.

5. The bone conduction headphone control circuit for motion-sensing operation according to claim 4, characterized in that: The main control chip U1 is also provided with an I2C connection terminal, which is communicatively connected to the battery management circuit; the battery management circuit includes a chip U8, which is provided with an input terminal and an output terminal; the chip U8 is used for the electrical connection and monitoring and management of the battery. The main control chip U1 is also provided with an ADC connection terminal and a VCHG-SENSE connection terminal. The ADC connection terminal is used to connect to the battery. The VCHG-SENSE connection terminal is connected to the battery management circuit and the power supply circuit. The power supply circuit includes a chip NC and a module D4. The module D4 is electrically connected to the chip NC. The power supply circuit is used for overcurrent and overvoltage protection.

6. The bone conduction headphone control circuit for motion-sensing operation according to claim 5, characterized in that: The main control chip U1 is also provided with two MIC connection terminals, which are electrically connected to the microphone circuit. The microphone circuit includes a left microphone circuit and a right microphone circuit. Both the left microphone circuit and the right microphone circuit include a first chip. Each of the first chips is provided with a first connector, which is connected to the MIC connection terminal.

7. The bone conduction headphone control circuit for motion-sensing operation according to claim 6, characterized in that: The main control chip U1 is also provided with a TRB connection terminal, which is connected to a debug port circuit, and the debug port circuit is used for debugging. The main control chip U1 is also provided with an AU-HP connection terminal, and the audio circuit is electrically connected to the AU-HP connection terminal; the audio circuit includes two second chips, and the second chips are connected to the TRB connection terminal.

8. The bone conduction headphone control circuit for haptic operation according to claim 7, characterized in that: The main control chip U1 is also provided with a GPIO connection terminal and an LED-AIO connection terminal. The GPIO connection terminal is electrically connected to the chip U9. An LED module is connected to the LED-AIO connection terminal, and the LED module is electrically connected to the chip U9.

9. The bone conduction headphone control circuit for haptic operation according to claim 8, characterized in that: The main control chip U1 is also provided with an RTC connection terminal, which is connected to a surface-mount passive crystal oscillator circuit, which includes a surface-mount passive crystal oscillator chip. The main control chip U1 is also provided with an RF-OUT connection terminal, and the radio frequency circuit is connected to the RF-OUT connection terminal; the radio frequency circuit includes a radio frequency module, and the radio frequency module is provided with an antenna.

10. A bone conduction headphone, characterized in that: The bone conduction headphones include the bone conduction headphone control circuit with haptic operation as described in any one of claims 1-9.

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