WO2023020322A1 - Wireless earphone, earphone case and wireless earphone system - Google Patents

Abstract

The embodiments of the present application relate to the technical field of electronics. Provided are a wireless earphone, an earphone case and a wireless earphone system, which can activate a wireless earphone and put same into an operation mode. In the solution, the wireless earphone can be accommodated in an earphone case, and the wireless earphone comprises a first processor, a charging circuit and a first magnetic sensor, wherein the first magnetic sensor is configured to send a first signal to the charging circuit in response to an opening operation on the earphone case; the charging circuit is configured to enter the operation mode according to the first signal; and in the operation mode, the charging circuit supplies power to the first processor.

Description

Wireless earphones, earphone boxes and wireless earphone systems

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office on August 18, 2021, with application number 202110949696.2 and titled "Wireless Earphones, Earphone Boxes, and Wireless Earphone System", the entire contents of which are incorporated herein by reference. In this application.

technical field

The embodiments of the present application relate to the field of electronic technology, and in particular, to a wireless earphone, an earphone box, and a wireless earphone system.

Background technique

Due to good portability and sound experience, true wireless stereo (TWS) earphones are favored by more and more users. TWS headsets and electronic devices (such as mobile phones, tablet computers, and wearable devices such as watches) can be connected via Bluetooth, so as to cooperate with electronic devices to perform the functions of playing music and making/receiving calls.

Currently, wireless earphones can be used in conjunction with an earphone box with a storage function, for example, the wireless earphone can be stored in a storage cavity of the earphone box. The earphone box can store and charge the wireless earphones. Among them, wireless earphones are directly stored in wearable products such as watches and wristbands in the market to improve the portability of wireless earphones. At present, when most wireless earphones are stored in an earphone box, the earphone box uses a pogo pin connector to connect with the wireless earphone and charge the wireless earphone. In addition, in order to reduce the power consumption of wireless earphones as much as possible, usually, when the wireless earphones are stored in the earphone box, they are configured with a low power consumption mode (for example: shipping mode shipmode). Part of the functional modules of the power supply, thereby ensuring the reduction of power consumption of the wireless headset. When the user uses the wireless earphone, the wireless earphone needs to be taken out from the storage cavity of the earphone box first, so the Hall sensor in the earphone box can detect the user’s unpacking operation of the electronic device, and trigger the electronic device to pass through the pogo pin The connector outputs a charging signal of 5V to the wireless headset, thereby activating the wireless headset to the working mode.

However, one form of electronic equipment is that, for the convenience of the user, when the earphone box is opened for operation, the wireless earphone will be directly adsorbed and separated from the storage cavity through the box cover. In this way, the pogo pin connector of the earphone box and the wireless The connection of the earphone is disconnected, so that when the user uses the wireless earphone, the HALL sensor in the electronic device detects that the user has opened the earphone box, and cannot output a 5V charging signal to the wireless earphone through the pogo pin connector, so that the wireless earphone cannot be used. The headset is activated to work mode.

Contents of the invention

Embodiments of the present application provide a wireless earphone, an earphone box, and a wireless earphone system, capable of activating the wireless earphone to a working mode.

In a first aspect, a wireless earphone is provided. Wherein, the wireless earphone can be stored in the earphone box, and the wireless earphone includes a first processor, a first charging circuit and a first magnetic sensor. The first magnetic sensor is configured to send a first signal to the first charging circuit in response to an operation of opening the earphone box. The first charging circuit is configured to enter an operating mode according to the first signal, and in the operating mode, the first charging circuit supplies power to the first processor. In the embodiment of the present application, the first charging circuit is configured as a working mode by detecting the opening operation of the earphone box through the first magnetic sensor connected to the first charging circuit, which realizes the activation of the wireless earphone and solves the problem of the prior art The problem that the wireless headset cannot be activated to the working mode in .

In a possible implementation manner, the wireless earphone further includes: a protection circuit and a trigger circuit; the trigger circuit is configured to receive the first trigger signal sent by the first processor before putting the wireless earphone into the earphone box, according to The first trigger signal outputs a pull-down level to the protection circuit; the protection circuit is configured to enter an open-circuit state according to the pull-down level, and in the open-circuit state, the protection circuit stops supplying power to the first charging circuit. Specifically, after the wireless headset leaves the factory, the first processor of the wireless headset can be controlled to send a first trigger signal to the trigger circuit through the communication connection established between other electronic devices and the headset to control the trigger circuit to output a pull-down level to the protection circuit, triggering the protection circuit The open circuit protection function enters the open circuit state. Since the protection circuit stops supplying power to the first charging circuit in the open circuit state, it is equivalent to completely disconnecting the discharge circuit of the battery, thereby further avoiding the power consumption of the first charging circuit in the low power consumption state, so that the function of the wireless earphone The power consumption is basically only the consumption of the battery itself, so as to ensure that the wireless headset is still charged when the wireless headset system reaches the user's hands.

In a possible implementation manner, the first charging circuit is configured to receive an activation signal sent by the earphone box before opening the earphone box, enter a working mode according to the activation signal, and output a pull-up power supply to the protection circuit. flat; the protection circuit is configured to enter the conduction state according to the pull-up level, and in the conduction state, the protection circuit supplies power to the first charging circuit; wherein, when the protection circuit is in the factory standby state of the open circuit state, when the user needs When using a wireless earphone, the wireless earphone needs to be activated. In this possible implementation, before the earphone box is opened, the activation signal sent by the earphone box will control the first charging circuit to The pull-up level output by the charging circuit controls the protection circuit to enter a conduction state, so as to supply power to the first processor.

In a possible implementation manner, the wireless earphone further includes a second magnetic sensor; the first processor is configured to send a signal to the first charging circuit when determining that the wireless earphone is in the box according to the second signal sent by the second magnetic sensor. The third signal: the first charging circuit, configured to enter a low power consumption mode according to the third signal, wherein in the low power consumption mode, the first charging circuit stops supplying power to the first processor. When the user has not taken out the earphone, the first processor determines that the wireless earphone is in the box according to the second signal sent by the second magnetic sensor, and controls the first charging circuit to enter a low power consumption mode to save power consumption.

In a possible implementation manner, the low power consumption mode includes a ship mode.

In a possible implementation manner, the first charging circuit is connected to the earphone box through a connector; the activation signal includes a charging voltage.

In one possible implementation, the connector includes a pogo pin connector.

In a second aspect, a wireless earphone is provided, and the wireless earphone can be stored in an earphone box. The wireless earphone includes a first processor, a first charging circuit, and a third magnetic sensor; the third magnetic sensor is configured to send a fourth signal to the first processor in response to an operation of closing the earphone box; the first processing The device is configured to send a fifth signal to the first charging circuit according to the fourth signal; the first charging circuit is configured to enter a low power consumption mode according to the fifth signal, and in the low power consumption mode, the first charging circuit stops charging Power is supplied to the first processor. It can be understood that, when the wireless earphone is in normal use, the first charging circuit is in the working mode, and in the working mode, the first charging circuit normally supplies power to the first processor, and each component of the wireless earphone is under the control of the first processor Realize various functions. When the wireless earphone is stored in the earphone box, in order to save power, the first processor can control the first charging circuit to enter the low power consumption mode according to the result of the third magnetic sensor detecting the closing operation, thereby configuring the first charging circuit to be low-power. power mode. In this way, in the low power consumption mode, the first charging circuit stops supplying power to the first processor, thereby saving power consumption.

In a possible implementation manner, the low power consumption mode includes a ship mode.

In a third aspect, an earphone box is provided, and the earphone box is used for storing wireless earphones. The earphone box includes a second processor, a second charging circuit, and a touch control; the touch control is configured to send a second trigger signal to the second processor in response to a user's trigger action; the second processor is configured to respond The second trigger signal controls the second charging circuit to send an activation signal to the wireless earphone; the activation signal is used to control the first charging circuit of the wireless earphone to enter a low power consumption mode, and output a pull-up level to the protection circuit of the wireless earphone, so that The protection circuit supplies power to the first charging circuit.

In a possible implementation manner, the second charging circuit is connected to the wireless earphone through a connector; the activation signal includes a charging voltage.

In one possible implementation, the connector includes a pogo pin connector.

In a possible implementation manner, the earphone box includes at least one or more of the following wearable devices: a watch, a wristband, or a bracelet.

A fourth aspect provides a wireless headset system, including: the wireless headset as provided in the first aspect or the second aspect and any possible implementation thereof, and the third aspect and any possible implementation thereof The earphone box provided in , wherein the earphone box is used to store wireless earphones.

In a possible implementation manner, when the cover of the earphone box is opened, the wireless earphone is adsorbed to the cover of the earphone box.

In a possible implementation manner, the earphone box includes at least one or more of the following wearable devices: a watch, a wristband, or a bracelet.

Among them, the technical effects brought about by the third aspect, the fourth aspect and any possible implementation thereof can refer to the technical effects brought about by different implementations from the first aspect to the second aspect above, and will not be repeated here. .

Description of drawings

FIG. 1 is a schematic structural diagram of a wireless earphone system provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 3 is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 4 is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 5 is a schematic structural diagram of a wireless earphone provided by an embodiment of the present application;

FIG. 6A is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 6B is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 6C is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 6D is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 6E is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 6F is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 7 is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 8 is a schematic diagram of a box-in and box-out process of a wireless earphone provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a display interface of an earphone box provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a wireless earphone system provided by another embodiment of the present application;

FIG. 11 is a schematic diagram of a circuit structure of a wireless earphone provided by another embodiment of the present application.

Detailed ways

The following will describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them.

Hereinafter, the terms "first", "second", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature.

In the description of this application, it should be noted that unless otherwise specified and limited, the terms "set", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

Wireless headsets can be used in conjunction with electronic devices such as mobile phones, laptops, and watches to handle audio services such as media and calls of electronic devices, as well as other data services. For example, the audio service can include media services such as playing music for users, recording, sound in video files, background music in games, and call notification sounds; , voice assistant and other call service scenarios, play the voice data of the peer end for the user, or collect the voice data of the user and send it to the peer end.

The prerequisite for wireless earphones to be used in conjunction with the above-mentioned electronic devices to provide users with various services is that the wireless earphones are used by the user from the earphone box used to store the wireless earphones (for example, earphone boxes, or electronic devices such as watches, wristbands, or bracelets) out. Usually, in order to save the power consumption of the wireless headset, when the wireless headset is stored in the headset box, the wireless headset is usually configured in a low power consumption mode (for example: shipping mode shipmode), and in the low power consumption state, the battery of the wireless headset stops Supply power to some functional modules of the wireless headset, thereby ensuring the reduction of power consumption of the wireless headset. When the user uses the wireless earphone, the Hall sensor in the electronic device detects the user's operation of opening the earphone box, and triggers the electronic device to output a 5V charging signal to the wireless earphone through the pogo pin connector, thereby activating the wireless earphone to Operating mode. However, one form of earphone box is shown in FIG. 1 . Usually, when a wireless earphone is placed in the storage cavity of the earphone box, the wireless earphone is sealed in the storage cavity of the body of the earphone box through the cover, wherein the wireless earphone Connection with wireless earphones via pogo pin connector. In order to facilitate the user's use, when the earphone box is opened, the wireless earphone will be directly absorbed and separated from the storage cavity through the box cover (see Figure 2), so that when the size and structure of the wireless earphone are small, it is more convenient for the user to take it directly Wireless Headphones. However, in this case, the connection between the pogo pin connector of the earphone box and the wireless earphone is directly disconnected when the box is opened, so that when the user uses the wireless earphone, the HALL sensor in the earphone box detects the user's opening of the earphone box. After the box is operated, the charging signal of 5V cannot be output to the wireless earphone through the pogo pin connector, so that the wireless earphone cannot be activated to the working mode.

The wireless earphones provided by the embodiments of the present application can detect the unpacking operation through the magnetic sensor (for example, a HALL sensor) provided inside the wireless earphone when the earphone box is unpacked, and control the charging circuit to enter from the low power consumption mode Working mode, so that the charging circuit supplies power to the processor of the wireless headset in the working mode, and realizes the activation of the wireless headset, which does not depend on the connection of the pogo pin connector; The internal magnetic sensor detects the operation of closing the box, controls the charging circuit to enter the low power consumption mode from the working mode, and stops supplying power to the processor in the low power consumption mode, thereby saving power.

The wireless earphones provided by the embodiments of the present application are not limited to head-mounted, neck-mounted, earplugs, ear-hooks, in-ears, etc., and the earphone boxes provided by the embodiments of the present application are not limited to earphone boxes, wearable devices (such as watches) , wristband or bracelet) and other forms. Of course, the illustrations provided in the following schemes mainly take the earbud type wireless earphones as an example for illustration.

Referring to FIG. 3 , it shows a schematic diagram of a wireless earphone system provided by an embodiment of the present application. As shown in FIG. 3 , the wireless earphone system 100 may include a wireless earphone 11 and an earphone box 12 .

Wherein, the wireless earphone 11 includes a pair of earphone bodies, such as a pair of earphone bodies 111 , which can be used with the user's left and right ears. Wherein, the wireless earphone 11 may specifically be a head-mounted type, a neck-mounted type, an earplug type, an ear-hook type, or an in-ear type. For example, the wireless earphone 11 may be a true wireless stereo (true wireless stereo, TWS) earphone.

The earphone box 12 can be used to accommodate the earphone body 111 . For example, the earphone box 12 includes two receiving cavities 121 . The receiving cavity 121 is used for receiving the earphone body 111 .

It should be noted that FIG. 3 shows a schematic diagram of a product form example of a wireless earphone system by way of example only. The wireless earphone provided in the embodiment of the present application includes but is not limited to the wireless earphone 11 shown in FIG. 3 , and the earphone box 12 includes but It is not limited to the earphone box shown in FIG. 3 . For example, the wireless earphone system provided in the embodiment of the present application may also be the wireless earphone system 200 shown in FIG. 4 . As shown in FIG. 4 , the wireless earphone system 200 includes a wireless earphone 21 and an earphone box 22 . The wireless earphone 21 includes two earphone bodies 211 . The earphone case 22 includes a storage cavity for storing the earphone body 211 . Of course, some wireless earphones may also include only one earphone body, and the embodiments of the present application will not be introduced one by one here.

Exemplarily, FIG. 5 shows a schematic structural diagram of an earphone body 300 of a wireless earphone. The earphone body 300 may include a processor 301, a memory 302, a wireless module 303, an audio module 304, a power module 305, multiple input/output (I/O) interfaces 306, a sensor module 307, and the like. The processor 301 may include one or more interfaces for connecting with other components of the earphone body 300 . Wherein, the one or more interfaces may include: an I/O interface (also referred to as an I/O pin), an interrupt pin, a data bus interface, and the like. Wherein, the data bus interface may include: one or more of a serial peripheral interface (serial peripheral interface) SPI, a two-wire serial bus (inter-integrated circuit, I2C) interface and an I3C (improved inter integrated circuit) interface . For example, in this embodiment of the present application, the processor 301 may be connected to the magnetic sensor through an I/O pin, an interrupt pin or a data bus interface. The earphone body 300 is stored in the earphone case 12 .

Wherein, the memory 302 can be used to store program codes, such as program codes for charging the earphone body 300, performing wireless pairing connection between the earphone body 300 and other electronic devices, or wireless communication between the earphone body 300 and other electronic devices. A Bluetooth address for uniquely identifying the wireless headset may also be stored in the memory 302 . In addition, the memory 302 may also store connection data of an electronic device that has been successfully paired with the wireless earphone before. For example, the connection data may be the Bluetooth address of the electronic device successfully paired with the wireless headset. Based on the connection data, the wireless earphone can be automatically paired with the electronic device without having to configure the connection therebetween, such as performing legality verification. The above bluetooth address may be a media access control (media access control, MAC) address.

The processor 301 can be used to execute the above application codes, and call related modules to realize the functions of the earphone body 300 in the embodiment of the present application. For example, the charging function of the earphone body 300, wireless communication function, audio data playback function, box opening operation, box closing operation, out-of-box detection function, etc. are realized. The processor 301 may include one or more processing units, and different processing units may be independent devices, or may be integrated in one or more processors 301 . Specifically, the processor 301 may be an integrated control chip, or may be composed of a circuit including various active and/or passive components, and the circuit is configured to execute the functions belonging to the processor 301 described in the embodiments of this application. Wherein, the processor of the earphone body 300 may be a microprocessor (micro controller unit, MCU).

The aforementioned sensor module 307 may include a distance sensor and/or a proximity light sensor. For example, as shown in FIG. 5 , the sensor module 307 includes a proximity sensor and/or a distance sensor. The processor 301 may determine whether the earphone body 300 is worn by the user according to the data collected by the distance sensor and/or the proximity light sensor. For example, the processor 301 can use the data collected by the distance sensor to detect whether there is an object near the earphone body 300, so as to determine whether the earphone body 300 is worn by the user. When it is determined that the earphone body 300 is worn, the processor 301 may turn on the speaker of the earphone body 300 . In some embodiments, the earphone body 300 may also include a bone conduction sensor, combined to form a bone conduction earphone. Using the bone conduction sensor, the processor 301 can acquire the vibration signal of the vibrating bone block of the vocal part, analyze the voice signal, and realize the voice function.

For another example, the outer surface of the earphone body 300 may also include: a touch sensor for detecting the user's touch operation; a fingerprint sensor for detecting the user's fingerprint and identifying the user's identity; , adaptively adjust some parameters (such as volume); and some other sensors.

It should be emphasized that the aforementioned sensor module 307 also includes a magnetic sensor 307A. The magnetic sensor 307A is used to detect the magnetic induction intensity of the magnetic field around the earphone body 300 . The processor 301 can detect the opening or closing operation of the earphone box 12 , and the out-of-box or in-box of the earphone body 300 according to the change of the magnetic induction intensity detected by the magnetic sensor. For example, the magnetic sensor may be a Hall sensor or a magnetometer.

The wireless module 303 can be used to support the connection between the earphone body 300 and other electronic devices or earphone boxes, including Bluetooth (bluetooth, BT), global navigation satellite system (global navigation satellite system, GNSS), wireless local area network (wireless local area networks, WLAN) ) (such as wireless fidelity (Wi-Fi) network), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication data exchange. In some embodiments, the wireless module 303 may be a Bluetooth chip. The earphone body 300 can pair and establish a wireless connection with the Bluetooth chip of other electronic devices through the Bluetooth chip, so as to realize wireless communication between the earphone body 300 and other electronic devices through the wireless connection. For example, in this embodiment of the application, the wireless module 303 can be used to send the earphone box and/or earphone to the electronic device that has established a wireless connection (such as a Bluetooth connection) with the earphone body 300 after the processor 301 determines that the earphone body 300 is out of the box. remaining power.

In addition, the wireless module 303 may further include an antenna. The wireless module 303 receives electromagnetic waves via the antenna, frequency-modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 301 . The wireless module 303 can also receive the signal to be sent from the processor 301, frequency-modulate it, amplify it, and convert it into electromagnetic wave and radiate it through the antenna. The wireless module 303 can also cooperate with the wireless module in the earphone box 12 to realize wireless charging of the wireless earphone.

The audio module 304 can be used to manage audio data, and realize the input and output of audio signals from the earphone body 300 . For example, the audio module 304 can obtain audio signals from the wireless module 303, or transmit audio signals to the wireless module 303, so as to realize making and receiving calls, playing music, starting/closing the voice assistant of the electronic device connected to the earphone, receiving/sending User's voice data and other functions. The audio module 304 may include a speaker (or earpiece, receiver) assembly for outputting audio signals, a microphone (or microphone, microphone), a microphone receiving circuit matched with the microphone, and the like. Loudspeakers can be used to convert audio electrical signals into sound signals and play them back. Microphones can be used to convert sound signals into audio electrical signals. Wherein, the audio module 304 (such as a speaker, also referred to as a “speaker”) includes a magnet (such as a magnet). The magnetic field around the earphone body 300 includes the magnetic field generated by the magnet. The magnetic field generated by the magnet will affect the magnitude of the magnetic induction collected by the magnetic sensor of the earphone body 300 .

The power supply module 305 can be used to provide the system power of the earphone body 300, supply power to each module of the earphone body 300, and support the earphone body 300 to receive charging input, etc. The power module 305 may include a power management unit (power management unit, PMU) and a battery (namely the first battery). Wherein, the power management unit may include a charging circuit, a voltage drop regulating circuit, a protection circuit, a power measurement circuit, and the like. The charging circuit can receive an external charging input. The voltage drop regulating circuit can transform the electrical signal input by the charging circuit and output it to the battery to complete charging the battery, and can also transform the electrical signal input by the battery and output it to other modules such as the audio module 304 and the wireless module 303 . The protection circuit can be used to prevent the battery from overcharging, overdischarging, short circuit or overcurrent, etc. In some embodiments, the power module 305 may also include a wireless charging coil for wirelessly charging the earphone body 300 . In addition, the power management unit can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance).

Multiple input/output interfaces 306 can be used to provide wired connections for charging or communication between the earphone body 300 and the earphone box. In some embodiments, the input/output interface 306 may include a connector for conducting and transmitting electric current. When the earphone body 300 is placed in the receiving cavity of the earphone box, the earphone body 300 can establish an electrical connection with the connector in the electronic device 12 through the connector (for example, the connector of the wireless earphone is in direct contact with the connector in the earphone box). After the electrical connection is established, the earphone box can charge the battery in the earphone body 300 through the current transmission function of the connector. For example, the connector of the wireless earphone can be a pogo pin (pogo pin, pogo pin), shrapnel, conductive block, conductive patch, conductive sheet, pin, plug, contact pad, jack or socket, etc., the embodiment of the present application The specific type of connector is not limited. In some other embodiments, after the electrical connection is established, the earphone body 300 can also perform data communication with the earphone box 12 , for example, can receive a pairing instruction from the earphone box 12 .

It can be understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the earphone body 300 . It may have more or fewer components than shown in FIG. 5 , may combine two or more components, or may have a different configuration of components. For example, the housing of the above-mentioned earphone body can also be provided with a magnet (such as a magnet) for absorbing the earphone box so that the earphone body is stored in the storage cavity, and for example, the housing of the earphone body can also be provided with a magnet for absorbing the earphone. The magnet of the box cover of the box can suck the earphone body out from the storage cavity when the earphone box is opened as shown in Figure 2 . For another example, the outer surface of the earphone body 300 can also include buttons, indicator lights (which can indicate the status of battery power, incoming/outgoing calls, pairing mode, etc.), display screens (which can prompt the user for relevant information), dust-proof nets (which can be used with the handset Use) and other components. Wherein, the key may be a physical key or a touch key (used in conjunction with a touch sensor), etc., and is used to trigger operations such as power on, power off, pause, play, record, start charging, stop charging, etc.

The various components shown in Figure 5 may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing or application specific integrated circuits.

In other embodiments, the earphone box 12 may include components such as a processor and a memory. The memory can be used to store application program codes, which are controlled and executed by the processor of the earphone box 12 to realize various functions of the earphone box 12 . For example, the processor of the earphone box 12 charges the wireless earphone after the wireless earphone is in the box and the lid of the earphone box is closed by executing the application program code stored in the memory, and performs unpacking operation, closing operation, wireless Headphone out-of-box and in-box detection functions, etc.

The earphone case 12 may also include a charging circuit and multiple input/output interfaces. The charging circuit can power electrical components in the electronic device 12 . In some embodiments, the input/output interface may be a connector, which is electrically connected to the electrodes of the charging circuit, and may be used to conduct and transmit current. The earphone box 12 may include two pairs of connectors respectively corresponding to the two earphone bodies. When the pair of connectors in the earphone box 12 are respectively electrically connected to the two connectors in the earphone body, the earphone box 12 can charge the battery in the earphone body or transmit information through its own charging circuit.

In some other embodiments, at least one touch control can be provided on the earphone box 12, which can be used to trigger functions such as pairing and resetting of the wireless earphone or charging of the wireless earphone, and the touch control can be a physical button or a touch button. In the embodiment of the present application, a touch control may also be included to provide a second trigger signal to the processor of the earphone box 12 .

The earphone box 12 can also be provided with one or more power indicator lights to prompt the user the power level of the battery in the earphone box 12 and the power level of the battery in each earphone body in the earphone box 12 .

In addition, the earphone box 12 may also be provided with a charging interface for the earphone box 12 to charge its own battery. The earphone box 12 may also include a wireless charging coil for wirelessly charging the battery of the earphone box 12 itself or wirelessly charging the wireless earphone.

A magnetic sensor can also be set on the earphone box 12 . The magnetic sensor is used to detect the magnetic induction of the magnetic field around the magnetic sensor. The processor can detect the opening or closing operation of the earphone box 12 and the out-of-box or in-box of the earphone body 300 according to the change of the magnetic induction intensity detected by the magnetic sensor.

It can be understood that the earphone box 12 may also include other components, which will not be described one by one here. The following describes the operation of opening or closing the box of the earphone box 12 detected by the magnetic sensor, and the out-of-box or in-box of the wireless earphone:

Usually, in order to realize the detection of the out-of-box or in-box of the wireless earphone, when one of the wireless earphone or the earphone box is provided with a magnetic sensor, the other is provided with a magnet corresponding to the magnetic sensor. When the relative position of the magnetic sensor and the magnet changes with the relative movement of the wireless earphone or the earphone box, the magnetic field intensity sensed by the magnetic sensor changes, thereby generating a signal for detecting the out-of-box or in-box of the wireless earphone. Can be magnetic field strength or interrupt signal. A detailed description will be given below with reference to FIGS. 6A and 6B . In some embodiments, the earphone box 61 may have one or more magnets inside. For example, the one or more magnets may include: a magnet for absorbing the wireless earphone (such as the earphone body of the wireless earphone), so that the wireless earphone is stored in the storage cavity; a magnet for closing and adsorbing the body of the earphone box and the lid; And the magnets corresponding to the magnetic sensors in the wireless earphones, etc. For example, as shown in FIG. 6A , the earphone case 61 includes two magnets 611 . A magnetic sensor 621 corresponding to the magnet 611 is disposed on the earphone body 62 . Wherein, when the earphone body 62 is stored in the storage chamber of the earphone box 61 , the magnetic field around the earphone body 62 includes the magnetic field generated by the magnet 611 . The magnetic field generated by the magnet 611 will affect the magnitude of the magnetic induction collected by the magnetic sensor 621 of the earphone body 62 . Exemplarily, the magnetic sensor 621 is coupled to the processor of the earphone body 62 through an I/O pin or an interrupt pin of the processor of the earphone body 62 . Alternatively, the magnetic sensor 621 can be coupled with the processor of the earphone body 62 through a data bus. For example, the data bus may be at least one of an SPI bus, an I2C bus or an I3C bus. The processor of the earphone body 62 may be a microprocessor. A microprocessor is a central processing unit composed of one or a few large-scale integrated circuits. The magnetic sensor 621 may be a Hall sensor, or a magnetometer. When the earphone body 62 is in the box state, the magnetic sensor 621 can detect the magnetic induction intensity of the magnetic field generated by the magnet 611 in the earphone box 61; The magnetic induction intensity of the magnetic field produced by the magnet 611 in the earphone box 61; or, when the earphone body 62 is in the box state, the magnetic sensor 621 can detect that the magnetic induction intensity of the magnetic field produced by the magnet 611 in the earphone box 61 is relatively high; In the external state, the magnetic sensor 621 detects that the magnetic field generated by the magnet 611 in the earphone box 61 is relatively low. It can be seen that when the earphone body 62 is in different states (such as in the box state or out of the box state), the magnetic induction intensity detected by the magnetic sensor 621 is different. Accordingly, the processor of the earphone body 62 can determine whether the wireless earphone is in the box or out of the box according to the signal generated by the magnetic sensor 621 detecting the magnetic field of the magnet 611 . Specifically, the signal generated by the magnetic sensor may be an interrupt signal sent by the magnetic sensor. For example, the magnetic sensor 621 generates a high level when it detects that the magnetic field of the magnet 611 is greater than the first magnetic field strength. When it is less than the second magnetic field strength, a low level is generated, so that a signal change process can be detected at the processor of the earphone body 62 (the change from high level to low level forms a falling edge signal), and then an interrupt signal is generated. Alternatively, the magnetic sensor 621 can also directly send the magnetic sensor 621 to detect the strength of the magnetic field of the magnet 611 to the processor of the earphone body 62, so that the processor of the earphone body 62 can determine whether the wireless earphone is in the case or not according to the magnetic field strength of the magnet 611. out of the box. In this way, the processor of the earphone body 62 can realize the detection of the wireless earphone being in or out of the box. In the solution shown in FIG. 6B , the earphone box 61 includes two magnetic sensors 612 , and the two earphone bodies 62 respectively include a magnet 622 corresponding to the magnetic sensors 612 . Wherein, when the earphone body 62 is stored in the storage cavity of the earphone box 61 , the surrounding area of the earphone body 62 includes a magnetic field generated by the magnet 622 . The magnetic field generated by the magnet 622 will affect the magnitude of the magnetic induction collected by the magnetic sensor 612 in the earphone box 61 . Furthermore, the processor of the earphone box 61 can determine whether the wireless earphone is in or out of the box according to the magnetic field strength of the magnet 622 collected by the magnetic sensor 612. The specific principle is similar to that shown in FIG. 6A and will not be repeated here.

In order to detect the opening operation or closing operation of the earphone box 61, when a magnetic sensor is provided on one of the body or the cover of the earphone box, a magnet corresponding to the magnetic sensor is provided on the other. Specifically, as shown in FIG. 6C, when the cover of the earphone box 61 is provided with a magnet 613, the body of the earphone box 61 is provided with a magnetic sensor 614 corresponding to the magnet 613, wherein the magnetic sensor 614 detects the magnetic field strength of the magnet 613. The size determines the opening operation or closing operation of the earphone box, wherein when the box opening operation is performed on the earphone box, since the box cover is opened, the distance between the magnet 613 and the magnetic sensor 614 becomes farther, so the magnet detected by the magnetic sensor 614 The magnetic field strength of 613 becomes smaller; when the earphone box is closed, because the lid is closed, the distance between the magnet 613 and the magnetic sensor 614 becomes closer, so the magnetic field strength of the magnet 613 detected by the magnetic sensor 614 becomes larger; , the processor of the earphone box 61 can determine the opening or closing operation of the earphone box according to the magnitude of the magnetic field strength of the magnet 613 collected by the magnetic sensor 614 . Similarly, a magnetic sensor 623 corresponding to the magnet 613 can also be set on the earphone body 62, and the processor of the earphone body 62 can determine whether to open or close the earphone box according to the magnitude of the magnetic field strength of the magnet 613 collected by the magnetic sensor 623. box operation. In another example, as shown in FIG. 6D , when the earphone body 62 is sucked out of the storage space by the cover during the unpacking operation, since the earphone body 62 and the cover of the earphone box 61 move simultaneously, that is, the earphone body 62 and the earphone body 62 move together. The lid of the earphone box 61 does not have relative displacement, so a magnet 616 can be set on the body of the earphone box 61, a magnetic sensor 615 corresponding to the magnet 616 is set on the lid of the earphone box 61, and a magnet 616 corresponding to the magnet 616 is set on the earphone body 62. The corresponding magnetic sensor 624; furthermore, the processor of the earphone box 61 can determine the opening or closing operation of the earphone box according to the magnitude of the magnetic field strength of the magnet 616 collected by the magnetic sensor 615. Similarly, the processor of the earphone body 62 can determine whether to open or close the earphone box according to the magnitude of the magnetic field strength of the magnet 616 collected by the magnetic sensor 624 .

In some examples, since the earphone body 62 is sucked out of the storage space by the lid while the box is being opened, two magnets 617 for absorbing the earphone body 62 need to be respectively arranged on the lid 61, then The magnetic field strength detected by the magnetic sensor 624 may be the composite magnetic field of the magnet 617 and the magnet 616. Then, when the earphone body 62 is in the box and the box is closed, the magnet 616 and the magnet 617 are both closer to the earphone body 62, and the magnetic sensor 624 Generate the first magnetic field strength, then it can be determined according to the first magnetic field strength that the earphone body 62 is in the box and the earphone box is closed; when the earphone body 62 is sucked out of the storage space by the box cover while the box is being opened, as shown in Figure 6E, The distance between the magnet 617 and the magnetic sensor 624 is kept in the box, and the magnet 616 is far away from the earphone body 62, and a second magnetic field intensity is generated at the magnetic sensor 624, and the unpacking operation can be determined according to the second magnetic field intensity; when the user takes off the earphone body 62 When in use, the earphone body 62 cannot detect the magnetic field strength of the magnet 616 and the magnet 617, and it is determined that the earphone is out of the box; when the user puts the earphone body 62 into the storage space, as shown in Figure 6F, the magnet 616 and the magnetic sensor 624 remain in the box distance, and the magnet 617 is away from the earphone body 62, and the magnetic sensor 624 generates a third magnetic field strength, then it can be determined according to the third magnetic field strength that the earphone body 62 is in the box and the earphone box is opened; After checking the magnetic field strength, confirm the closing operation. In this solution, a magnetic sensor can be used to simultaneously realize the out-of-box operation of the wireless earphone, the box-in operation or the box-off operation of the earphone box. In some examples, a multi-axis magnetic sensor can also be used, for example, a three-axis HALL sensor can be used to detect different states (out of the box of the wireless earphone, in the box) in different directions (such as the X, Y, and Z axis directions of the rectangular coordinate system). Or the magnetic field strength generated by the magnet in each axial direction under the box opening operation and closing operation of the earphone box, so as to realize the detection of the out-of-box, in-box or earphone box-opening operation and closing operation of the wireless earphone through a magnetic sensor.

Of course, magnets or magnetic sensors can also be arranged on the earphone box 61 and the earphone body 62 in other ways, the principle of which is roughly similar to the solutions described above in FIGS. 6A-6F , and will not be repeated here.

Based on the above hardware structure, embodiments of the present application provide a wireless earphone, an earphone box, and a wireless earphone system. 7, in the wireless earphone system, the wireless earphone 71 includes a first processor 711, a first charging circuit 712, a first magnetic sensor 713, a protection circuit 714, a trigger circuit 715, a battery 716, a second magnetic sensor 717 and The third magnetic sensor 718 . Among them, the first processor 711 is connected to the first charging circuit 712, the second magnetic sensor 717, the trigger circuit 715 and the third magnetic sensor 718; the first charging circuit 712 is connected to the first magnetic sensor 713 and the protection circuit 714; the battery 716 is connected to the protection circuit The circuit 714 ; the trigger circuit is connected between the first processor 711 and the protection circuit 714 . The earphone box 72 includes a second processor 721 , a second charging circuit 722 , a touch control 723 and a fourth magnetic sensor 724 . Wherein, the second processor 721 is connected to the second charging circuit 722 , the touch control 723 and the fourth magnetic sensor 724 . Wherein, the first charging circuit 712 is electrically connected to the second charging circuit 722 through a connector (such as a pogo pin), or the first charging circuit 712 is connected to the second charging circuit 722 through wireless charging. In this way, the second charging circuit 722, the first charging circuit 712, the protection circuit 714 and the battery 716 constitute the charging circuit of the battery 716 of the wireless earphone 71; the battery 716, the protection circuit 714, the first charging circuit 712 and the first processor 711 constitute The discharge circuit of the battery 716 of the wireless earphone 71, of course, this is only an example. Other devices with power requirements can also be connected to the first charging circuit 712 to form other discharging circuits. Of course, for the hardware architecture shown in FIG. 7 above, all the components of the wireless earphone and the earphone box are not disclosed, and in the description of the working principle of the wireless earphone system described below, in some examples, only the part in FIG. 7 may be used The hardware structure is described as an example (that is, not all the hardware structures shown in FIG. 7 are used in some examples).

Referring to Fig. 7 and Fig. 8, the working principle of the wireless earphone system provided by the embodiment of the present application in the normal use scenario of the user is described as follows in combination with the box-entry process of the wireless earphone:

101. After the user puts the wireless earphone into the earphone box, the fourth magnetic sensor 724 is configured to send a sixth signal to the second processor 721 in response to the putting operation of the wireless earphone into the box.

102. The second processor 721 determines that the wireless headset is in the box according to the sixth signal.

Specifically, referring to the above-mentioned description about the detection of the wireless earphone in the earphone box, when the user puts the wireless earphone into the box and closes the earphone box, the second processor 721 can specifically detect the wireless earphone inside the box according to the fourth magnetic sensor 724. The strength of the magnetic field generated by the magnet or the interrupt signal determines the wireless headset in the box.

103. The third magnetic sensor 718 is configured to send a fourth signal to the first processor 711 in response to an operation of closing the earphone box.

104. The first processor 711 is configured to send a fifth signal to the first charging circuit 712 according to the fourth signal.

105. The first charging circuit 712 is configured to enter a low power consumption mode according to a fifth signal, wherein in the low power consumption mode, the first charging circuit 712 stops supplying power to the first processor 711.

It can be understood that, when the wireless earphone is in normal use, the first charging circuit 712 is in the working mode, and in the working mode, the first charging circuit 712 supplies power to the first processor 711 normally, and each component of the wireless earphone is in the first processor Each function is realized under the control of 711. When the wireless earphone is stored in the earphone box, in order to save power, the first charging circuit 712 can be configured in a low power consumption mode (such as shipmode mode), so that in the low power consumption mode, the first charging circuit 712 stops charging to the second charging circuit 712. A processor 711 supplies power, thereby saving power consumption. Wherein in step 102 and step 103, the detection of the operation of closing the earphone box may be that the first processor 711 determines the user's preference for the earphone box according to the magnetic field strength or interrupt signal generated by the magnet in the earphone box detected by the third magnetic sensor 718. Close the box operation. Specifically, when the wireless earphone is separated from the storage space of the earphone box with the opening of the box cover, the magnet can be arranged on the body of the earphone box, and the third magnetic sensor 718 can be arranged on the earphone body (as shown in FIG. 6D ); when the wireless earphone When the cover does not leave the storage space of the earphone box, the magnet can be set on the cover of the earphone box, and the third magnetic sensor 718 can be set on the earphone body (as shown in FIG. 6C ).

When the user needs to use the wireless earphone, the user unpacks the earphone box and takes out the earphone. Referring to FIG. 8, the embodiment of the present application continues to provide the out-of-box process of the wireless earphone:

106. The first magnetic sensor 713 is configured to send a first signal to the first charging circuit 712 in response to an operation of opening the earphone box.

107. The first charging circuit 712 is configured to enter an operating mode according to a first signal, and in the operating mode, the first charging circuit 712 supplies power to the first processor 711.

Specifically, referring to the above-mentioned description about the detection of the earphone box opening by the wireless earphone, the first charging circuit 712 can specifically determine that the earphone box is opened according to the magnetic field strength generated by the magnet in the earphone box detected by the first magnetic sensor 713 or the interrupt signal. Specifically, when the wireless earphone is separated from the storage space of the earphone box with the opening of the box cover, the magnet can be set on the body of the earphone box, and the first magnetic sensor can be set on the earphone body (as shown in Figure 6D); When the lid is opened and separated from the storage space of the earphone box, the magnet can be arranged on the lid of the earphone box, and the first magnetic sensor can be arranged on the earphone body (as shown in FIG. 6C ). It can be understood that, based on the description of steps 101-105, when the wireless earphone is in the box state, the first charging circuit 712 is in a low power consumption mode, which can save power consumption. When the user needs to use the wireless earphone, the first charging circuit 712 needs to be configured as an operating mode, and when the first charging circuit 712 is in a low power consumption mode, the first charging circuit 712 does not supply power to the first processor 711, Therefore, it is impossible to configure the first charging circuit 712 to work mode through the first processor 711. In the embodiment of the present application, the first magnetic sensor 713 connected to the first charging circuit 712 is directly used to detect the opening operation of the earphone box. The first charging circuit 712 is configured in the working mode, which realizes the activation of the wireless earphone, and solves the problem that the wireless earphone cannot be activated to the working mode in the prior art. Moreover, the activation method of the wireless earphone provided by the embodiment of the present application can be compatible with the solution that the earphone box is opened to directly suck the wireless earphone out of the storage space, and the wireless earphone does not leave the storage space when the earphone box is opened.

The solution shown in Figure 8 above is mainly the box-out and box-in solution of the wireless earphone system in normal use by the user. It can be understood that, usually when the user is in normal use, the power of the wireless earphone and the earphone box can be monitored, and can be Charge your wireless earbuds and earphone case anytime. However, under factory conditions, usually the wireless earphone system may take a long time to reach the user. During this period, the greater the standby power consumption of the wireless earphone and earphone box, the faster the power consumption. When the hands are held for a long time, the power may be exhausted, so when the wireless earphone system reaches the user's hands, if the power is exhausted, the user cannot directly turn it on, thereby affecting the user experience. Based on this, referring to FIG. 9 , after the wireless headset leaves the factory, the embodiment of the present application also provides a method for using the wireless headset system, including the following steps:

201. The trigger circuit 715 is configured to receive a first trigger signal sent by the first processor 711 before putting the wireless earphone 71 into the earphone box 72, and output a pull-down level to the protection circuit 714 according to the first trigger signal.

202. The protection circuit 714 is configured to enter an open circuit state according to the pull-down level, and in the open circuit state, the protection circuit stops supplying power to the first charging circuit 712.

Specifically, after the earphone leaves the factory, the first processor 711 of the wireless earphone 71 can be controlled to send the first trigger signal to the trigger circuit 715 through the communication connection established between other electronic devices and the earphone to control the trigger circuit 715 to output a pull-down level to the protection circuit 714. (Usually, the pull-down level can adopt a low-level pulse signal, for example, it can be a low-level pulse signal input to the protection circuit 714 by connecting the protection circuit 714 to the ground terminal GND through the trigger circuit 715), triggering the protection circuit 714 The open circuit protection function enters the open circuit state. Since the protection circuit 714 stops supplying power to the first charging circuit 712 in an open circuit state, it is equivalent to completely disconnecting the discharge circuit in FIG. In this way, the power consumption of the wireless headset is basically only the consumption of the battery 716 itself, so as to ensure that the wireless headset is still powered when the wireless headset system reaches the user's hands. That is, in the factory standby state, when the wireless earphone is in the box, the protection circuit is in an open state and no longer supplies power to the first charging circuit; compared with steps 101-107, when the wireless earphone is in the standby state of the box during normal use, the protection circuit Still supplying power to the first charging circuit, the power consumption of the first charging circuit can be saved in the factory standby state. In a specific test of a product, it was found that the total power consumption of the wireless headset in the standby state of the box is 9.5uA during normal use, and the standby time can reach 131.5 days for a 30mAH battery; The total power consumption in standby mode is 4.5uA, and for a 30mAH battery, the standby time can reach 277.6 days.

After step 202, the cover of the earphone box can be opened to put the wireless earphone into the box. The specific steps include:

203. After the user puts the wireless earphone into the earphone box, the fourth magnetic sensor 724 is configured to send a sixth signal to the second processor 721 in response to the operation of putting the wireless earphone into the box.

204. The second processor 721 determines that the wireless earphone is in the box according to the sixth signal.

Specifically, referring to the above-mentioned description about the detection of the wireless earphone in the earphone box, when the user puts the wireless earphone into the box and closes the earphone box, the second processor 721 can specifically detect the wireless earphone inside the box according to the fourth magnetic sensor 724. The strength of the magnetic field generated by the magnet or the interrupt signal determines the wireless headset in the box.

After the above steps 201-204, when the user obtains the wireless earphone system, the wireless earphone is in the factory standby state in which the protection circuit 714 is open. Then, when the user needs to use it normally, in order to activate the wireless headset, the embodiment of the present application also includes the following steps:

205. The touch control 723 is configured to send a second trigger signal to the second processor 721 in response to a user's trigger action.

In this step, the touch control 723 may be a physical button outside the earphone box or a touch control on the display screen of the earphone box. In addition, in order to remind the user to pass the touch control 723 when using the wireless earphone for the first time, a message may be displayed on the display screen of the earphone box to remind the user. For example, as shown in FIG. 10 , the protection circuit 714 is configured as an open circuit After the status, the message "Please press the touch control before using the earphone for the first time" can be displayed on the display screen of the control earphone box through the communication connection established by other electronic devices and the earphone box.

206. The second processor 721 is configured to control the second charging circuit 722 to send an activation signal to the wireless earphone in response to the second trigger signal. The activation signal is used to control the first charging circuit 712 of the wireless earphone to enter a low power consumption mode, and output a pull-up level to the protection circuit 714 of the wireless earphone, so that the protection circuit 714 supplies power to the first charging circuit 712 .

Usually, the activation signal is the charging voltage generated by the second processor 721 controlling the second charging circuit 722 (for example, it may be a 5V voltage). The pull-up level may be a high level, for example, it may be the charging voltage output by the second charging circuit 722 to the protection circuit 714 through the first charging circuit 712 .

207. The first charging circuit 712 is configured to receive an activation signal sent by the earphone box, enter a working mode according to the activation signal, and output a pull-up level to the protection circuit 714 before opening the earphone box.

208 . The protection circuit 714 is configured to enter a conduction state according to the pull-up level, and in the conduction state, the protection circuit 714 supplies power to the first charging circuit 712 .

209. The first processor 711 is configured to send a third signal to the first charging circuit 712 when determining that the wireless earphone is in the box according to the second signal sent by the second magnetic sensor 717.

Specifically referring to the above-mentioned description about the detection of the wireless earphone in the box by the earphone, the first processor 711 may specifically determine that the wireless earphone is in the box according to the magnetic field strength generated by the magnet in the earphone box detected by the second magnetic sensor 717 or the interrupt signal.

210. The first charging circuit 712 is configured to enter a low power consumption mode according to a third signal, wherein in the low power consumption mode, the first charging circuit 712 stops supplying power to the first processor 711.

Among them, when the protection circuit is in the factory standby state of the open circuit state, when the user needs to use the wireless headset, the wireless headset needs to be activated. The activation signal will control the first charging circuit to activate to the working mode, and control the protection circuit to enter the conduction state through the pull-up level output by the first charging circuit, so as to supply power to the first processor. When the user has not taken out the earphone, According to the second signal sent by the second magnetic sensor, the first processor determines that when the wireless earphone is in the box, it controls the first charging circuit to enter a low power consumption mode to save power consumption. The low power consumption mode of the first charging circuit in step 210 is the low power consumption mode in step 105, which directly connects the working principle of the wireless headset when the user is using it normally in step 101-step 107, and then the user can follow steps 101-step 107 use the wireless headphone system normally. Wherein, it should be noted that, in combination with the above-mentioned schematic descriptions of Fig. 6A-Fig. It should be noted that the magnetic sensor needs to be connected to the first charging circuit 712 and the first processor 711 at the same time. When the wireless earphone is in the box state, the first charging circuit 712 is in a low power consumption mode, and the first charging circuit 712 is not for The first processor 711 supplies power, so the first charging circuit 712 cannot be configured as an operating mode through the first processor 711. In the embodiment of the application, the earphone box is detected directly through the magnetic sensor connected to the first charging circuit 712. The unboxing operation realizes that the first charging circuit 712 is configured to work mode (that is, realizes the function of the first magnetic sensor 713), realizes the activation of the wireless earphone, and solves the problem that the wireless earphone cannot be activated to the work mode in the prior art. When the first charging circuit 712 is in the working mode, the detection of the closing operation of the earphone box may be that the first processor 711 determines whether the user closes the earphone box according to the magnetic sensor detecting the magnetic field strength generated by the magnet in the earphone box or the interrupt signal. The cartridge operates (ie, implements the functionality of the third magnetic sensor 718). In addition, the first charging circuit 712 is in the working mode. In step 209, the detection of the earphone in the box may be that the first processor 711 determines specifically according to the magnetic field strength generated by the magnetic sensor in the earphone box or the interrupt signal. The wireless earphone is in the box (ie realizes the function of the second magnetic sensor 717).

Specifically, referring to FIG. 11 , the embodiment of the present application also provides a specific circuit structure of a wireless earphone. Wherein, the wireless earphone includes a battery 716, a first processor 711, and FIG. 11 also shows specific chip structures of a protection circuit 714, a first charging circuit 712 and a first magnetic sensor 713. As shown in FIG. 11, the positive pole VBAT of the battery 716 is connected to the input terminal PCKP of the protection circuit 714, and the negative pole VBAT- of the battery 716 is connected to the output terminal BATN1 of the protection circuit 714, wherein, when the protection circuit 714 is in a conducting state, the battery 716 The discharge circuit between the positive pole VBAT and the negative pole VBAT− of the battery is turned on, and power is output to VBAT, so that the battery 716 supplies power to the first charging circuit 712 and the first magnetic sensor 713 through the protection circuit 714 . When the protection circuit 714 is in the open state, the discharge circuit where the battery 716 is located is opened, so as to disconnect the discharge circuit between the positive pole VBAT and the negative pole VBAT- of the battery 716, and stop outputting power to VBAT. The trigger circuit 715 can specifically adopt a switch transistor, wherein the switch transistor is connected between the input terminal PCKP of the protection circuit 714 and the ground terminal GND, and the trigger circuit 715 can control the switch transistor to connect the input terminal of the protection circuit 714 to PCKP is connected to the ground terminal GND, so that the input terminal PCKP of the protection circuit 714 outputs a pull-down level through the ground terminal GND to trigger the protection circuit 714 to enter an open circuit state, wherein the input terminal PCKP of the protection circuit 714 is directly connected to the ground terminal GND. The pull-down level is a low-level pulse signal provided by the ground terminal GND. In addition, the input terminal IN of the first charging circuit 712 is connected to the second charging circuit 722 of the earphone box through a connector (such as a pogo pin), and the battery terminal BATT of the first charging circuit 712 is connected to the positive pole VBAT of the battery 716. When the first charging circuit When the input terminal IN of 712 inputs a charging voltage (such as 5V voltage), the charging voltage can be provided for the battery 716 through the battery terminal BATT for charging, and since the battery terminal BATT is connected to the positive pole VBAT of the battery 716, the input terminal PCKP of the protection circuit 714 can be Pull high (that is, input a pull-up level at the input terminal of the protection circuit 714, the pull-up level can be a high level, for example, it can be the charging voltage provided by the first charging circuit 712 for the battery 716 through the battery terminal BATT) , so as to trigger the protection circuit 714 into a conduction state (that is, exit the open circuit state), so that the battery 716 outputs power to VBAT. Wherein, the battery terminal BATT terminal of the first charging circuit 712 is connected to VBAT, and the power supply terminal VDD of the first magnetic sensor 713 is connected to VBAT, so the battery 716 can supply power to the first charging circuit 712 and the first magnetic sensor 713. In this scheme It also includes a switch transistor K1, which is connected between the control terminal INT (CHG-IN) of the first charging circuit 712 and the ground terminal GND, and the first magnetic sensor 713 can determine the headphone case according to the detected magnetic field strength of the magnet. The box-opening operation, so as to output a control signal to the switching transistor K1 to conduct the control terminal INT (CHG-IN) of the first charging circuit 712 with the ground terminal GND, and then pull the control terminal INT of the first charging circuit 712 low (this , the first charging circuit 712 receives the above-mentioned first signal). Wherein, the first charging circuit 712 supplies power to the first processor 711 through the system power supply pin SYS (VBAT-SYS) in the working mode.

In addition, as shown in FIG. 11 , the protection circuit 714 also includes other functional pins such as: PCKN1, PCKN2, BYPS, SINK; the first charging circuit 712 also includes other functional pins such as: NTC, VDD, SDA, SCL and GND; The first magnetic sensor 713 also includes other function pins such as: OUTN, SINK, GND; it can be understood that other function pins of these chips can realize other functions of the corresponding chip, or provide the connection interface of peripheral components for the chip, Of course, since the embodiment of the present application does not relate to the specific functions of these pins, no detailed description will be given here.

The above content is only the specific implementation of the application, but the protection scope of the application is not limited thereto, and any changes or replacements within the technical scope disclosed in the application shall be covered within the protection scope of the application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (16)

1. A wireless earphone, which can be stored in an earphone box, is characterized in that the wireless earphone includes a first processor, a first charging circuit, and a first magnetic sensor;

   The first magnetic sensor is configured to send a first signal to the first charging circuit in response to an operation of opening the earphone box;

   The first charging circuit is configured to enter an operating mode according to the first signal, and in the operating mode, the first charging circuit supplies power to the first processor.
2. The wireless earphone according to claim 1, further comprising: a protection circuit and a trigger circuit;

   The trigger circuit is configured to receive a first trigger signal sent by the first processor before putting the wireless earphone into the earphone box, and output a pull-down level to the protection circuit according to the first trigger signal ;

   The protection circuit is configured to enter an open circuit state according to the pull-down level, and in the open circuit state, the protection circuit stops supplying power to the first charging circuit.
3. The wireless earphone according to claim 2, characterized in that,

   The first charging circuit is configured to receive an activation signal sent by the earphone box before opening the earphone box, enter a working mode according to the activation signal, and output a pull-up signal to the protection circuit level;

   The protection circuit is configured to enter a conduction state according to the pull-up level, and in the conduction state, the protection circuit supplies power to the first charging circuit.
4. The wireless earphone according to claim 1, further comprising a second magnetic sensor;

   The first processor is configured to send a third signal to the first charging circuit when determining that the wireless earphone is in the box according to the second signal sent by the second magnetic sensor;

   The first charging circuit is configured to enter a low power consumption mode according to the third signal, wherein in the low power consumption mode, the first charging circuit stops supplying power to the first processor.
5. The wireless earphone according to any one of claims 1-4, wherein the low power consumption mode includes a ship mode.
6. The wireless earphone according to claim 3, wherein the first charging circuit is connected to the earphone box through a connector; the activation signal includes a charging voltage.
7. The wireless headset of claim 6, wherein the connector comprises a pogopin connector.
8. A wireless earphone, which can be stored in an earphone box, is characterized in that the wireless earphone includes a first processor, a first charging circuit, and a third magnetic sensor;

   The third magnetic sensor is configured to send a fourth signal to the first processor in response to the earphone box closing operation;

   The first processor is configured to send a fifth signal to the first charging circuit according to the fourth signal;

   The first charging circuit is configured to enter a low power consumption mode according to the fifth signal, and in the low power consumption mode, the first charging circuit stops supplying power to the first processor.
9. The wireless earphone according to claim 8, wherein the low power consumption mode comprises a ship mode.
10. A kind of earphone box, described earphone box is used for accommodating wireless earphone, is characterized in that, described earphone box comprises second processor, second charging circuit and touch control;

    The touch control is configured to send a second trigger signal to the second processor in response to a user's trigger action;

    The second processor is configured to control the second charging circuit to send an activation signal to the wireless earphone in response to the second trigger signal; the activation signal is used to control the first charging circuit of the wireless earphone Entering a low power consumption mode, and outputting a pull-up level to the protection circuit of the wireless earphone, so that the protection circuit supplies power to the first charging circuit.
11. The earphone box according to claim 10, wherein the second charging circuit is connected to the wireless earphone through a connector; the activation signal includes a charging voltage.
12. The earphone case according to claim 11, wherein the connector comprises a pogopin connector.
13. The earphone box according to any one of claims 10-12, characterized in that the earphone box includes at least one or more of the following wearable devices: a watch, a wristband or a bracelet.
14. A wireless earphone system, characterized by comprising: the wireless earphone according to any one of claims 1-9, and the earphone box according to any one of claims 10-13, wherein the earphone box is used for storing the wireless earphones.
15. The wireless earphone system according to claim 14, wherein when the earphone box is opened, the wireless earphone is adsorbed to the cover of the earphone box.
16. The wireless earphone system according to claim 14, wherein the earphone box includes at least one or more of the following wearable devices: a watch, a wristband or a bracelet.

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