CN115708361A

CN115708361A - Wireless earphone, earphone box and wireless earphone system

Info

Publication number: CN115708361A
Application number: CN202110949696.2A
Authority: CN
Inventors: 何远圣; 梅宏琛; 周国祥; 王力; 杨磊; 张献春; 郎秋生; 黎业钊; 彭忠
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2023-02-21
Also published as: WO2023020322A1

Abstract

The embodiment of the application provides a wireless earphone, an earphone box and a wireless earphone system, relates to the technical field of electronics, and can activate the wireless earphone to a working mode. In the scheme, the wireless earphone can be contained in an earphone box and comprises a first processor, a charging circuit and a first magnetic sensor; a first magnetic sensor configured to transmit a first signal to the charging circuit in response to an opening operation of the earphone box; and the charging circuit is configured to enter an operating mode according to the first signal, wherein in the operating mode, the charging circuit supplies power to the first processor.

Description

Wireless earphone, earphone box and wireless earphone system

Technical Field

The embodiment of the application relates to the technical field of electronics, in particular to a wireless earphone, an earphone box and a wireless earphone system.

Background

True Wireless Stereo (TWS) headsets are gaining favor with more and more users due to good portability and sound experience. The TWS headset and the electronic device (e.g., wearable devices such as a mobile phone, a tablet computer, and a watch) may be connected via bluetooth, so as to perform functions of playing music and making/receiving a call in cooperation with the electronic device.

Currently, the wireless earphone can be used in cooperation with an earphone box having a storage function, for example, the wireless earphone can be stored in a storage cavity of the earphone box. The earphone box can contain the wireless earphone and charge the wireless earphone. Among them, there has also appeared in the market that wireless earphones are directly stored in wearing articles such as watches and wristbands to improve the portability of wireless earphones. Currently, when most wireless earphones are stored in an earphone box, the earphone box adopts a pogo pin connector to connect with the wireless earphones and charge the wireless earphones. In order to reduce the power consumption of the wireless headset as much as possible, a low power consumption mode (for example, shipping mode) is usually configured when the wireless headset is housed in the headset case, and in the low power consumption state, the battery of the wireless headset stops supplying power to a part of the functional modules of the wireless headset, thereby ensuring that the power consumption of the wireless headset is reduced. When a user uses the wireless earphone, the wireless earphone needs to be taken out of the containing cavity of the earphone box at first, so that the opening operation of the user on the electronic equipment can be detected through a Hall (HALL) sensor in the earphone box, the electronic equipment is triggered to output a charging signal of 5V to the wireless earphone through a pogo pin connector, and the wireless earphone is activated to a working mode.

However, the electronic device of a form is, for the convenience of use, when the operation of unpacking the earphone box, can directly adsorb the wireless earphone through the lid and break away from the storage cavity, like this, the spring pin pogo pin connector of earphone box and the disconnection of being connected of wireless earphone, thereby when making the user use wireless earphone, HALL sensor among the electronic device detects the user after the operation of unpacking the earphone box, can't export 5V's charging signal to wireless earphone through pogo pin connector, thereby can't activate wireless earphone to the mode.

Disclosure of Invention

The embodiment of the application provides a wireless earphone, an earphone box and a wireless earphone system, which can activate the wireless earphone to a working mode.

In a first aspect, a wireless headset is provided. The wireless earphone can be contained in the earphone box and comprises a first processor, a first charging circuit and a first magnetic sensor. A first magnetic sensor configured to transmit a first signal to the first charging circuit in response to an open-box operation of 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 application, the first charging circuit is configured to be in the working mode by detecting the box opening operation of the earphone box through the first magnetic sensor connected with the first charging circuit, so that the activation of the wireless earphone is realized, and the problem that the wireless earphone cannot be activated to the working mode in the prior art is solved.

In one possible implementation, the wireless headset further includes: a protection circuit and a trigger circuit; the trigger circuit is configured to receive a first trigger signal sent by the first processor before the wireless earphone is placed in the earphone box, and output a pull-down level to the protection circuit according to the first trigger signal; and 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 a 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 the other electronic equipment and the headset so as to control the trigger circuit to output a pull-down level to the protection circuit, trigger the open-circuit protection function of the protection circuit, and enter an open-circuit state. The protection circuit stops supplying power to the first charging circuit in an open circuit state, which is equivalent to completely disconnecting the discharging loop of the battery, so that the power consumption of the first charging circuit in a low power consumption state is further avoided, the power consumption of the wireless earphone basically only remains the consumption of the battery, and the wireless earphone can be ensured to still have power when the wireless earphone system reaches the hands of a user.

In one possible implementation manner, the first charging circuit is configured to receive an activation signal sent by the earphone box before the box opening operation of the earphone box, enter a working mode according to the activation signal, and output a pull-up level to the protection circuit; a protection circuit configured to enter a conductive state according to a pull-up level, in which the protection circuit supplies power to the first charging circuit; in a possible implementation manner, before the box opening operation of the earphone box, the first charging circuit is controlled to be activated to the working mode through an activation signal sent by the earphone box, and the protection circuit is controlled to enter a conducting state through a pull-up level output by the first charging circuit, so that power can be supplied to the first processor.

In one possible implementation, the wireless headset further comprises a second magnetic sensor; a first processor configured to send a third signal to the first charging circuit when the wireless headset is determined to be in the box according to the second signal sent by the second magnetic sensor; and 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. When the user does not take 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 one possible implementation, the low power mode includes shipping mode shipmode.

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

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

In a second aspect, a wireless headset is provided, which can be stored in a headset case. The wireless headset comprises a first processor, a first charging circuit and a third magnetic sensor; a third magnetic sensor configured to transmit a fourth signal to the first processor in response to a box-closing operation of the earphone box; a first processor configured to transmit a fifth signal to the first charging circuit according to the fourth signal; and 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. It can be understood that, when the wireless headset is normally used, the first charging circuit is in a working mode, and in the working mode, the first charging circuit normally supplies power to the first processor, and each component of the wireless headset realizes each function under the control of the first processor. When the wireless headset is stowed in the headset case, in order to save power, the first processor may control the first charging circuit to enter the low power mode according to a result of the third magnetic sensor detecting the closing operation, thereby configuring the first charging circuit in the low power mode. In this way, in the low power mode, the first charging circuit stops supplying power to the first processor, thereby saving power consumption.

In a third aspect, a headset case is provided for housing a wireless headset. The earphone box comprises a second processor, a second charging circuit and a touch control; the touch control is configured to respond to the triggering action of the user and send a second triggering signal to the second processor; a second processor configured to control the second charging circuit to transmit an activation signal to the wireless headset in response to a second trigger signal; the activation signal is used for controlling a first charging circuit of the wireless headset to enter a low power consumption mode and outputting a pull-up level to a protection circuit of the wireless headset, so that the protection circuit supplies power to the first charging circuit.

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

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

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

In a fourth aspect, there is provided a wireless headset system comprising: the wireless headset according to the first aspect or the second aspect and any one of their possible implementations, and the headset case according to the third aspect and any one of their possible implementations, wherein the headset case is configured to house the wireless headset.

In one possible implementation, the wireless headset is attached to the lid of the headset case when the headset case is opened.

For technical effects brought by any possible implementation manner of the third aspect, the fourth aspect, and any possible implementation manner of the third aspect, reference may be made to technical effects brought by different implementation manners of the first aspect to the second aspect, and details are not described here again.

Drawings

Fig. 1 is a schematic structural diagram of a wireless headset system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a wireless headset system according to another embodiment of the present application;

fig. 3 is a schematic structural diagram of a wireless headset system according to another embodiment of the present application;

fig. 4 is a schematic structural diagram of a wireless headset system according to still another embodiment of the present application;

fig. 5 is a schematic structural diagram of a wireless headset according to an embodiment of the present application;

fig. 6A is a schematic structural diagram of a wireless headset system according to another embodiment of the present application;

fig. 6B is a schematic structural diagram of a wireless headset system according to another embodiment of the present application;

fig. 6C is a schematic structural diagram of a wireless headset system according to still another embodiment of the present application;

fig. 6D is a schematic structural diagram of a wireless headset system according to another embodiment of the present application;

fig. 6E is a schematic structural diagram of a wireless headset system according to yet another embodiment of the present application;

fig. 6F is a schematic structural diagram of a wireless headset system according to still another embodiment of the present application;

fig. 7 is a schematic structural diagram of a wireless headset system according to another embodiment of the present application;

fig. 8 is a schematic diagram illustrating a process of loading and unloading a wireless headset according to an embodiment of the present application;

fig. 9 is a schematic view of a display interface of an earphone box according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a wireless headset system according to another embodiment of the present application;

fig. 11 is a schematic circuit structure diagram of a wireless headset according to another embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; the specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The wireless earphone can be used in cooperation with electronic equipment such as a mobile phone, a notebook computer, a watch and the like, and is used for processing audio services such as media, conversation and the like of the electronic equipment and other data services. For example, the audio service may include media services such as playing music, recording, sound in a video file, background music in a game, incoming call prompt tone, etc. for the user; the method can also comprise playing the voice data of the opposite terminal for the user or collecting the voice data of the user and sending the voice data to the opposite terminal under the conversation service scenes of telephone, weChat voice message, audio conversation, video conversation, games, voice assistants and the like.

The premise that the wireless earphone is matched with the electronic equipment to provide various services for the user is as follows: the wireless headset is taken out by the user from a headset case (which may be, for example, a headset case, or an electronic device such as a watch, a wrist band, or a bracelet) for housing the wireless headset. Generally, in order to save 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 mode (for example, shipping mode, shipmode), and in the low power mode, the battery of the wireless headset stops supplying power to a part of functional modules of the wireless headset, thereby ensuring that the power consumption of the wireless headset is reduced. When a user uses the wireless earphone, a Hall (HALL) sensor in the electronic equipment detects the box opening operation of the user on the earphone box, and triggers the electronic equipment to output a charging signal of 5V to the wireless earphone through the pogo pin connector, so that the wireless earphone is activated to a working mode. However, in the earphone case of one embodiment, as shown in fig. 1, when the wireless earphone is placed in the storage cavity of the earphone case, the wireless earphone is usually enclosed in the storage cavity of the body of the earphone case through the case cover, wherein the wireless earphone is connected to the wireless earphone through the pogo pin connector. For the convenience of use, when unpacking the earphone box, can directly break away from wireless earphone absorption through the lid and accomodate the chamber (refer to fig. 2) when wireless earphone's size structure is less, wireless earphone is directly taken to convenience of customers more. However, in this case, the connection between the pogo pin connector of the earphone box and the wireless earphone is directly disconnected during the box opening operation, so that when the user uses the wireless earphone, after the HALL sensor in the earphone box detects the box opening operation of the user on the earphone box, the HALL sensor cannot output a 5V charging signal to the wireless earphone through the pogo pin connector, and the wireless earphone cannot be activated to the working mode.

The wireless headset provided by the embodiment of the application can detect the box opening operation through the magnetic sensor (for example, a HALL sensor) arranged in the wireless headset when the box opening operation is performed on the headset box, and control the charging circuit to enter the working mode from the low power consumption mode, so that the charging circuit supplies power to the processor of the wireless headset in the working mode, the activation of the wireless headset is realized, and the connection of a pogo pin connector is not relied on; when the earphone box is closed, the magnetic sensor arranged in the wireless earphone is used for detecting the box closing operation, the charging circuit is controlled to enter a low power consumption mode from a working mode, and the power supply to the processor is stopped in the low power consumption mode, so that the electric energy is saved.

The wireless headset provided by the embodiment of the application is not limited to a headset type, a neck-wearing type, an earplug type, an ear-hanging type, an in-ear type and the like, and the headset box provided by the embodiment of the application is not limited to a headset box, a wearable device (such as a watch, a wrist band or a bracelet) and the like. Of course, the following scheme is provided in the figure and mainly described by taking the wireless earphone of the earplug type as an example.

Referring to fig. 3, a schematic diagram of a wireless headset system provided in an embodiment of the present application is shown. As shown in fig. 3, the wireless headset system 100 may include a wireless headset 11 and a headset case 12.

The wireless headset 11 includes a pair of headset bodies, such as the pair of headset bodies 111, that can be used with the left and right ears of the user. The wireless earphone 11 may be a head-wearing type, a neck-wearing type, an ear-plugging type, an ear-hanging type, or an in-ear type. The wireless headset 11 may be, for example, a True Wireless Stereo (TWS) headset.

The earphone case 12 may be used to house the earphone body 111. For example, the earphone case 12 includes two housing cavities 121. The receiving cavity 121 is used for receiving the earphone body 111.

It should be noted that fig. 3 is a schematic diagram showing an example of a product form of a wireless headset system by way of example only, the wireless headset provided in the embodiment of the present application includes, but is not limited to, the wireless headset 11 shown in fig. 3, and the headset box 12 includes, but is not limited to, the headset box shown in fig. 3. For example, the wireless headset system provided in the embodiment of the present application may also be the wireless headset system 200 shown in fig. 4. As shown in fig. 4, the wireless headset system 200 includes a wireless headset 21 and a headset case 22. The wireless headset 21 includes two headset bodies 211. The earphone case 22 includes a housing cavity for housing the earphone body 211. Of course, some wireless headsets may also include only one headset body, and embodiments of the present application are not described herein.

For example, fig. 5 shows a schematic structural diagram of an earphone body 300 of a wireless earphone. The headset body 300 may include a processor 301, a memory 302, a wireless module 303, an audio module 304, a power module 305, a plurality of 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 headset body 300. Wherein the one or more interfaces may include: I/O interfaces (also known as I/O pins), interrupt pins, and data bus interfaces, among others. Wherein, the data bus interface can include: one or more of a Serial Peripheral Interface (SPI), an inter-integrated circuit (I2C) interface, and an I3C interface. For example, in the 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 housed in an earphone case 12.

The memory 302 may be used to store program codes, such as program codes for charging the headset body 300, wirelessly pairing the headset body 300 with other electronic devices, or wirelessly communicating the headset body 300 with other electronic devices. The memory 302 may also have stored therein a bluetooth address for uniquely identifying the wireless headset. In addition, the memory 302 may also store connection data of electronic devices that have been successfully paired with the wireless headset. For example, the connection data may be a bluetooth address of the electronic device that was successfully paired with the wireless headset. Based on the connection data, the wireless headset can be automatically paired with the electronic device without having to configure a connection therewith, such as for legitimacy verification and the like. The bluetooth address may be a Media Access Control (MAC) address.

The processor 301 may be configured to execute the application program codes and call the relevant modules to implement the functions of the headset body 300 in the embodiment of the present application. For example, a charging function, a wireless communication function, an audio data playing function, and a box opening operation, a box closing operation, an out-of-box detection function, etc. of the headphone body 300 are realized. The processor 301 may include one or more processing units, and the different processing units may be separate devices or may be integrated in one or more of the processors 301. The processor 301 may be specifically 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 the present application. The processor of the earphone body 300 may be a Micro Controller Unit (MCU).

The 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 light sensor and/or a distance sensor. The processor 301 may determine whether the headset body 300 is worn by the user based on data collected by the distance sensor and/or the proximity light sensor. For example, the processor 301 may detect whether there is an object near the headset body 300 using data collected by the distance sensor, thereby determining whether the headset body 300 is worn by the user. Upon determining that the earphone body 300 is worn, the processor 301 may turn on the speaker of the earphone body 300. In some embodiments, the earpiece body 300 may also include a bone conduction sensor, incorporated into a bone conduction earpiece. By using the bone conduction sensor, the processor 301 can acquire the vibration signal of the bone mass vibrated by the sound part, analyze the voice signal and realize the voice function.

For another example, the outer surface of the earphone body 300 may further include: a touch sensor for detecting a touch operation by a user; the fingerprint sensor is used for detecting the fingerprint of the user, identifying the identity of the user and the like; the ambient light sensor can adaptively adjust some parameters (such as volume) according to the perceived brightness of the ambient light; and other sensors.

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

The wireless module 303 may be configured to support data exchange between the earphone body 300 and other electronic devices or earphone boxes, where the data exchange includes wireless communication such as Bluetooth (BT), global Navigation Satellite System (GNSS), wireless Local Area Network (WLAN) (e.g., wireless fidelity (Wi-Fi) network), frequency Modulation (FM), short-range wireless communication technology (near field communication, NFC), infrared technology (infrared, IR), and the like. In some embodiments, the wireless module 303 may be a bluetooth chip. The headset body 300 can be paired with bluetooth chips of other electronic devices through the bluetooth chip and establish wireless connection, so that wireless communication between the headset body 300 and other electronic devices is realized through the wireless connection. For example, in this embodiment, the wireless module 303 may be configured to send the remaining battery capacity of the earphone and/or the earphone to an electronic device that establishes a wireless connection (e.g., a bluetooth connection) with the earphone body 300 after the processor 301 determines that the earphone body 300 is taken out of the box.

The wireless module 303 may further include an antenna, and the wireless module 303 may receive an electromagnetic wave via the antenna, frequency-modulate and filter an electromagnetic wave signal, and transmit the processed signal to the processor 301. The wireless module 303 may also receive a signal to be transmitted from the processor 301, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna to radiate the electromagnetic waves. The wireless module 303 may also cooperate with the wireless module in the earphone box 12 to realize wireless charging of the wireless earphone.

The audio module 304 may be used to manage audio data and enable the headset body 300 to input and output audio signals. For example, the audio module 304 may obtain an audio signal from the wireless module 303 or transmit the audio signal to the wireless module 303, so as to implement functions of making and receiving calls, playing music, activating/deactivating a voice assistant of an electronic device connected to the headset, receiving/transmitting voice data of a user, and the like through the headset body. The audio module 304 may include a speaker (or called an earpiece or a receiver) for outputting an audio signal, a microphone (or called a mike or a microphone), a microphone receiving circuit matched with the microphone, and the like. The speaker may be used to convert the electrical audio signal into an acoustic signal and play it. The microphone may be used to convert sound signals into electrical audio signals. The audio module 304 (e.g., a speaker, also referred to as a "speaker") includes a magnet (e.g., a magnet) therein. The magnetic field around the earphone body 300 includes the magnetic field generated by the magnet. The magnetic field generated by the magnet may affect the magnitude of the magnetic induction intensity collected by the magnetic sensor of the earphone body 300.

A power module 305, which can be used to provide a system power supply for the earphone body 300 and supply power to each module of the earphone body 300; the earphone body 300 is supported to receive a charging input, etc. The power module 305 may include a Power Management Unit (PMU) and a battery (i.e., a first battery). The power management unit may include a charging circuit, a voltage drop adjusting circuit, a protection circuit, an electric quantity measuring circuit, and the like. The charging circuit may receive an external charging input. The voltage drop adjusting circuit may transform the electrical signal input by the charging circuit and output the transformed electrical signal to the battery to complete charging of the battery, and may transform the electrical signal input by the battery and output the transformed electrical signal to other modules such as the audio module 304 and the wireless module 303. The protection circuit can be used to prevent overcharge, overdischarge, short circuit, overcurrent, or the like of the battery. In some embodiments, the power module 305 may further include a wireless charging coil for wirelessly charging the headset body 300. In addition, the power management unit can also be used for monitoring parameters such as battery capacity, battery cycle number, battery health state (electric leakage and impedance) and the like.

A plurality of input/output interfaces 306 may be used to provide a wired connection 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 electrical current. When the earphone body 300 is placed in the receiving cavity of the earphone box, the earphone body 300 may establish an electrical connection with a connector in the electronic device 12 through the connector (e.g., 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 may charge the battery in the earphone body 300 through the current transfer function of the connector. For example, the connector of the wireless headset may be a pogo pin (pogo pin ), a spring, a conductive block, a conductive patch, a conductive sheet, a pin, a plug, a contact pad, a jack, a socket, or the like, and the embodiment of the present application is not limited to a specific type of the connector. In other embodiments, after the electrical connection is established, the earphone body 300 may further perform data communication with the earphone box 12, for example, may receive a pairing instruction from the earphone box 12.

It is to be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation to 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 earphone body may further include a magnet (e.g., a magnet) for attracting the earphone case, so that the earphone body is accommodated in the accommodating cavity, and for example, the housing of the earphone body may further include a magnet for attracting the case cover of the earphone case, so that the earphone body can be sucked out of the accommodating cavity when the earphone case is unpacked as shown in fig. 2. For another example, the outer surface of the earphone body 300 may further include a key, an indicator light (which may indicate states of power, incoming/outgoing call, pairing mode, and the like), a display screen (which may prompt related information of a user), a dust screen (which may be used in cooperation with an earphone), and other components. The key may be a physical key or a touch key (used in cooperation with the touch sensor), and is used for triggering operations such as startup, shutdown, pause, play, recording, starting charging, stopping charging, and the like.

The various components shown in fig. 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 pod 12 may include a processor, memory, etc. therein. The memory may be used to store application program code and be controlled by the processor of the earphone box 12 for execution to implement the various functions of the earphone box 12. For example, the processor of the earphone box 12 may perform, by executing application code stored in the memory, charging the wireless earphone after the wireless earphone is in the box and the lid of the earphone box is closed, as well as performing an open box operation, a close box operation, an out-of-box and in-box detection functions of the wireless earphone, and the like.

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

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

The earphone box 12 may also be provided with one or more power indicators to indicate to the user the amount of power of the battery in the earphone box 12 and the amount of power of the battery in each earphone body in the earphone box 12.

In addition, a charging interface may be further disposed on the earphone box 12, so that the earphone box 12 charges its own battery. The earphone box 12 may further include a wireless charging coil therein for wirelessly charging the battery of the earphone box 12 itself or wirelessly charging the wireless earphone.

The earphone box 12 may also be provided with a magnetic sensor. The magnetic sensor is used for detecting the magnetic induction intensity of a magnetic field around the magnetic sensor. The processor may detect the opening or closing operation of the earphone box 12, the out-of-box or in-box of the earphone body 300, according to the change in the magnetic induction detected by the magnetic sensor.

It is understood that the earphone box 12 may also include other components, which are not described herein. The following description will be made of the magnetic sensor detecting the opening or closing operation of the earphone case 12, the taking out or in-case of the wireless earphone:

in general, in order to detect the out-of-box or in-box of the wireless headset, when one of the wireless headset and the headset 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 along with the relative movement of the wireless earphone or the earphone box, the magnetic field intensity sensed by the magnetic sensor changes, so that a signal used for detecting the wireless earphone going out of the box or in the box is generated, and the signal can be the magnetic field intensity or an interrupt signal. The following is specifically explained with reference to fig. 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 adsorbing the wireless earphone (such as the earphone body of the wireless earphone) so that the wireless earphone is accommodated in the accommodating cavity; the magnet is used for closing and adsorbing the body of the earphone box and the box cover; and a magnet corresponding to a magnetic sensor in the wireless headset. For example, as shown in fig. 6A, the earphone case 61 includes two magnets 611 therein. The earphone body 62 is provided with a magnetic sensor 621 corresponding to the magnet 611. When the earphone body 62 is stored in the storage cavity 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 affects the magnitude of the magnetic induction collected by the magnetic sensor 621 of the earphone body 62. Illustratively, the magnetic sensor 621 is coupled to the processor of the headset body 62 through an I/O pin or interrupt pin of the processor of the headset body 62. Alternatively, the magnetic sensor 621 may be coupled to the processor of the headset 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 headset body 62 may be a microprocessor. Microprocessors are central processing units consisting 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 case state, the magnetic sensor 621 can detect the magnetic induction intensity of the magnetic field generated by the magnet 611 in the earphone case 61; when the earphone body 62 is in the out-of-case state, the magnetic sensor 621 cannot detect the magnetic induction intensity of the magnetic field generated by the magnet 611 in the earphone case 61; alternatively, when the earphone body 62 is in the box state, the magnetic sensor 621 may detect that the magnetic induction intensity of the magnetic field generated by the magnet 611 in the earphone box 61 is high; when the earphone body is in the outside-case state, the magnetic sensor 621 detects that the magnetic field generated by the magnet 611 in the earphone case 61 is low. It can be seen that when the earphone body 62 is in different states (e.g., 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 that 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 detecting that the magnetic field of the magnet 611 is greater than the first magnetic field strength, and generates a low level when detecting that the magnetic field of the magnet 611 is less than the second magnetic field strength, so that a process of signal change (a change from the high level to the low level forms a falling edge signal) can be detected at the processor of the earphone body 62, and the interrupt signal is generated. Alternatively, the magnetic sensor 621 may directly send the intensity of the magnetic field of the magnet 611 detected by the magnetic sensor 621 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 box or out of the box according to the intensity of the magnetic field of the magnet 611. The processor of the headset body 62 can thus effect detection of the wireless headset in or out of the box. In the solution shown in fig. 6B, two magnetic sensors 612 are included in the earphone box 61, and two earphone bodies 62 respectively include one magnet 622 corresponding to the magnetic sensors 612. When the earphone body 62 is stored in the storage cavity of the earphone case 61, the periphery of the earphone body 62 includes a magnetic field generated by the magnet 622. The magnetic field generated by the magnet 622 affects 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 may determine that the wireless earphone is in the box or out of the box according to the magnitude of the magnetic field strength of the magnet 622 collected by the magnetic sensor 612, and the specific principle is similar to the scheme shown in fig. 6A and is not described again.

In order to detect the opening or closing operation of the earphone case 61, when one of the body or the case cover of the earphone case is provided with a magnetic sensor, the other is provided with a magnet corresponding to the magnetic sensor. Specifically, as shown in fig. 6C, when the magnet 613 is provided on the lid of the earphone case 61, the body of the earphone case 61 is provided with the magnetic sensor 614 corresponding to the magnet 613, wherein the magnetic sensor 614 determines the opening operation or closing operation of the earphone case by detecting the magnitude of the magnetic field strength of the magnet 613, wherein when the opening operation is performed on the earphone case, since the lid is opened, the distance between the magnet 613 and the magnetic sensor 614 becomes farther, and thus the magnetic field strength of the magnet 613 detected by the magnetic sensor 614 becomes smaller; when the box closing operation is performed on the earphone box, since the box cover is closed, the distance of the magnet 613 from the magnetic sensor 614 becomes short, and thus the magnetic field strength of the magnet 613 detected by the magnetic sensor 614 becomes large; further, the processor of the earphone box 61 may determine the opening operation or the closing operation of the earphone box according to the magnitude of the magnetic field intensity of the magnet 613 collected by the magnetic sensor 614. Similarly, a magnetic sensor 623 corresponding to the magnet 613 may be disposed on the earphone body 62, and the processor of the earphone body 62 may determine the box opening operation or the box closing operation of the earphone box according to the magnitude of the magnetic field intensity of the magnet 613 acquired by the magnetic sensor 623. In another example, referring to fig. 6D, when the earphone body 62 is sucked out of the storage space by the lid while the opening operation is performed, since the earphone body 62 and the lid of the earphone box 61 move simultaneously, that is, the earphone body 62 and the lid of the earphone box 61 do not move relatively, a magnet 616 may be disposed on the body of the earphone box 61, a magnetic sensor 615 corresponding to the magnet 616 may be disposed on the lid of the earphone box 61, and a magnetic sensor 624 corresponding to the magnet 616 may be disposed on the earphone body 62; further, the processor of the earphone box 61 may determine the opening operation or the closing operation of the earphone box according to the magnitude of the magnetic field intensity of the magnet 616 collected by the magnetic sensor 615. Similarly, the processor of the earphone body 62 may determine the opening or closing operation of the earphone case according to the magnitude of the magnetic field strength of the magnet 616 collected by the magnetic sensor 624.

In some examples, since two magnets 617 for adsorbing the earphone body 62 are generally required to be respectively disposed on the box cover 61 in a scheme that the earphone body 62 is adsorbed out of the storage space by the box cover while the box is opened, the magnetic field strength detected by the magnetic sensor 624 may be a composite magnetic field of the magnets 617 and the magnets 616, when the earphone body 62 is in a box and is closed state, the magnets 616 and the magnets 617 are both close to the earphone body 62, and the magnetic sensor 624 generates a first magnetic field strength, which may determine that the earphone body 62 is in the box and the earphone box is closed according to the first magnetic field strength; when the earphone body 62 is sucked out of the storage space by the case cover while the opening operation is performed, as shown in fig. 6E, the magnet 617 and the magnetic sensor 624 are maintained at the distance when the earphone body is in the case, and the magnet 616 is far away from the earphone body 62, and when the magnetic sensor 624 generates the second magnetic field strength, the opening operation can be determined according to the second magnetic field strength; when the user takes off the earphone body 62 for use, the earphone body 62 cannot detect the magnetic field intensity of the magnet 616 and the magnet 617, and the earphone is determined to be taken out of the box; when the user puts the earphone body 62 into the storage space, as shown in fig. 6F, the magnet 616 and the magnetic sensor 624 are maintained at the distance when the earphone body is boxed, while the magnet 617 is far away from the earphone body 62, and the magnetic sensor 624 generates a third magnetic field strength, it can be determined that the earphone body 62 is boxed and the earphone box is unpacked according to the third magnetic field strength; the cassette-off operation is determined after the magnetic sensor 624 detects the above-described first magnetic field strength. In the scheme, the box outlet operation, the box inlet operation or the box opening operation and the box closing operation of the wireless earphone can be realized simultaneously by adopting one magnetic sensor. In some examples, a multi-axis magnetic sensor may also be used, for example, a three-axis HALL sensor is used to detect magnetic field intensity generated by the magnet in each axial direction under different states (e.g., out-of-box, in-box opening operation, and in-box closing operation of the box or the earphone box) in different directions (e.g., X, Y, and Z-axis directions of a rectangular coordinate system), so as to detect out-of-box, in-box opening operation, and in-box closing operation of the box or the earphone box by using one magnetic sensor.

Of course, the earphone case 61 and the earphone body 62 may also be provided with a magnet or a magnetic sensor in other manners, and the principle thereof is substantially similar to the scheme described in fig. 6A to 6F, and will not be described again.

Based on the hardware structure, the embodiment of the application provides a wireless earphone, an earphone box and a wireless earphone system. Referring to fig. 7, in the wireless headset system, the wireless headset 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 a third magnetic sensor 718. 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 with the protection 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. The second processor 721 is connected to the second charging circuit 722, the touch control 723 and the fourth magnetic sensor 724. The first charging circuit 712 and the second charging circuit 722 are electrically connected by a connector (e.g., pogo pin), or the first charging circuit 712 and the second charging circuit 722 are connected by a wireless charging method. Thus, the second charging circuit 722, the first charging circuit 712, the protection circuit 714, and the battery 716 constitute a charging circuit for the battery 716 of the wireless headset 71; the battery 716, the protection circuit 714, the first charging circuit 712, and the first processor 711 form a discharging loop of the battery 716 of the wireless headset 71, which is, of course, just an example. Other devices with power requirements may also be connected to the first charging circuit 712 to form other discharging circuits. Of course, for the above-mentioned hardware architecture shown in fig. 7, not all the components of the wireless headset and the headset case are disclosed, and in the following description of the operation principle of the wireless headset system, only a part of the hardware structure in fig. 7 may be used as an example in some examples (that is, all the hardware structure shown in fig. 7 is not used in some examples).

Referring to fig. 7 and fig. 8, the operation principle of the wireless headset system provided in the embodiment of the present application in the normal use scenario of the user is described as follows:

101. when the user puts the wireless headset into the headset case, the fourth magnetic sensor 724 is configured to transmit a sixth signal to the second processor 721 in response to the putting-in operation of the wireless headset.

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

Specifically, referring to the above description of the earphone box for the wireless earphone on-box detection, after the user puts the wireless earphone into the box and closes the earphone box, the second processor 721 may specifically determine that the wireless earphone is on-box according to the magnetic field intensity generated by the magnet in the wireless earphone detected by the fourth magnetic sensor 724 or the interrupt signal.

103. A third magnetic sensor 718 configured to transmit a fourth signal to the first processor 711 in response to a box-closing operation of the earphone box.

104. The first processor 711 is configured to transmit 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 the 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 headset is normally used, the first charging circuit 712 is in an operating mode, in the operating mode, the first charging circuit 712 normally supplies power to the first processor 711, and each component of the wireless headset realizes each function under the control of the first processor 711. When the wireless headset is stowed in the headset case, in order to save power, the first charging circuit 712 may be configured in a low power mode (e.g., a shipmode), such that in the low power mode, the first charging circuit 712 stops supplying power to the first processor 711, thereby saving power consumption. Wherein in step 102, step 103, the detection of the closing operation of the earphone box may be that the first processor 711 determines the closing operation of the earphone box by the user according to the magnetic field intensity generated by the magnet in the earphone box detected by the third magnetic sensor 718 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 may be disposed on the body of the earphone box, and the third magnetic sensor 718 may be disposed on the earphone body (as shown in fig. 6D); when the wireless earphone is not separated from the storage space of the earphone box with the opening of the box cover, the magnet may be disposed on the box cover of the earphone box, and the third magnetic sensor 718 may be disposed on the earphone body (as shown in fig. 6C).

When the user needs to use the wireless headset, the user unpacks the headset box and takes out the headset, referring to fig. 8, the embodiment of the present application continues to provide the unpacking process of the wireless headset:

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

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

Specifically, referring to the above description of the wireless headset for headset open box detection, the first charging circuit 712 may specifically determine that the headset is open box according to the magnetic field intensity generated by the magnet in the headset box detected by the first magnetic sensor 713 or an interrupt signal. Specifically, when the wireless earphone is separated from the storage space of the earphone box along with the opening of the box cover, the magnet may be disposed on the body of the earphone box, and the first magnetic sensor may be disposed on the earphone body (as shown in fig. 6D); when the wireless earphone is not separated from the storage space of the earphone box with the opening of the box cover, the magnet may be disposed on the box cover of the earphone box, and the first magnetic sensor may be disposed on the earphone body (as shown in fig. 6C). It is understood that, based on the description of steps 101-105, when the wireless headset is in the box state, the first charging circuit 712 is in the low power consumption mode, which can save power consumption. When a user needs to use the wireless headset, the first charging circuit 712 needs to be configured to be in the working mode, and when the first charging circuit 712 is in the low power consumption mode, the first charging circuit 712 does not supply power to the first processor 711, so that the first charging circuit 712 cannot be configured to be in the working mode through the first processor 711. And the activation mode of the wireless earphone that the embodiment of this application provided can compatible earphone box open the box and directly take in the space with the wireless earphone suction to and earphone box open the box wireless earphone and do not break away from the scheme of taking in the space.

The scheme shown in fig. 8 is mainly a case outlet and case inlet scheme of the wireless headset system in normal use of a user, and it can be understood that, generally, when the user uses the wireless headset system normally, the electric quantity of the wireless headset and the electric quantity of the headset case can be monitored, and the wireless headset and the headset case can be charged at any time. However, under the factory working condition, the wireless headset system may need a long transportation time to reach the user's hand, and during this period, the standby power consumption of the wireless headset and the headset box is large, so that the power consumption is fast, and thus when the wireless headset system reaches the user's hand after factory, the time to reach the user's hand is long, the power consumption may be exhausted, so that when the wireless headset system reaches the user's hand, if the power consumption is over, the user cannot directly start up, and thus user experience is affected. Based on this, referring to fig. 9, after the wireless headset leaves the factory, an embodiment of the present application further provides a method for using a wireless headset system, including the following steps:

201. the trigger circuit 715 is configured to receive the first trigger signal sent by the first processor 711 before the wireless headset 71 is placed in the headset case 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 state according to the pull-down level, in which the protection circuit stops supplying power to the first charging circuit 712.

Specifically, after the headset leaves the factory, the first processor 711 of the wireless headset 71 may be controlled by the communication connection established between the other electronic device and the headset to send the first trigger signal to the trigger circuit 715 to control the trigger circuit 715 to output the pull-down level to the protection circuit 714 (usually, the pull-down level may be a low-level pulse signal, for example, the low-level pulse signal may be input to the protection circuit 714 by connecting the protection circuit 714 with the ground GND through the trigger circuit 715), and trigger the open-circuit protection function of the protection circuit 714 to enter the open-circuit state. Since the protection circuit 714 stops supplying power to the first charging circuit 712 in the open state, which is equivalent to completely disconnecting the discharging loop in fig. 7, the battery 716 stops supplying power, thereby further avoiding power consumption of the first charging circuit 712 in the low power consumption state, so that power consumption of the wireless headset basically only remains consumption of the battery 716, thereby ensuring that the wireless headset still has power when the wireless headset system arrives at the user. Namely, in a factory standby state, when the wireless earphone is in a box, the protection circuit is in an open circuit state and does not supply power to the first charging circuit any more; compared with steps 101-107, when the wireless earphone is in the standby state of the box during normal use, the protection circuit still supplies power to the first charging circuit, and therefore power consumption of the first charging circuit can be saved in the factory standby state. Specific tests on a product show that the total power consumption of the wireless earphone in the standby state of the box is 9.5uA in normal use, and the standby time can reach 131.5 days for a 30mAH battery; the total power consumption in the factory standby state in the embodiment of the application is 4.5uA, and the standby time can reach 277.6 days for a 30mAH battery.

After step 202, the wireless headset can be put into the box by opening the box cover of the headset box, and the specific steps include:

203. when the user puts the wireless headset into the headset case, the fourth magnetic sensor 724 is configured to transmit a sixth signal to the second processor 721 in response to the putting-in operation of the wireless headset.

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

Through the above steps 201-204, when the user obtains the wireless headset system, the wireless headset is in the factory standby state where the protection circuit 714 is in an open circuit state. When the user needs to use the wireless headset normally, in order to activate the wireless headset, the embodiment of the application further includes the following steps:

205. a touch control 723 configured to send a second trigger signal to the second processor 721 in response to a trigger action by the user.

In this step, the touch control 723 may be a physical key outside the headphone case or a touch control on a display screen of the headphone case. In addition, in order to remind the user to use the wireless headset for the first time through the touch control 723, a message may be displayed on the display screen of the headset box to prompt the user, for example, as shown in fig. 10, after the protection circuit 714 is configured to be in an open state after being shipped from a factory, a message "please press the touch control before using the headset for the first time" may be displayed on the display screen of the headset box through the communication connection established between the other electronic device and the headset box.

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

Typically, the activation signal is a charging voltage (which may be, for example, a 5V voltage) that the second processor 721 controls the second charging circuit 722 to generate. The pull-up level may be a high level, and may be, for example, a charging voltage that the second charging circuit 722 outputs to the protection circuit 714 through the first charging circuit 712.

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

208. A protection circuit 714 configured to enter a conductive state according to the pull-up level, in which the protection circuit 714 supplies power to the first charging circuit 712.

209. And a first processor 711 configured to transmit a third signal to the first charging circuit 712 when it is determined that the wireless headset is at the box according to the second signal transmitted by the second magnetic sensor 717.

With particular reference to the above description of the headset with respect to wireless headset in-box detection, the first processor 711 may specifically determine that the wireless headset is in-box based on the second magnetic sensor 717 detecting the magnetic field strength generated by the magnet within the headset box or the interrupt signal.

210. The first charging circuit 712 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 712 stops supplying power to the first processor 711.

In the possible implementation mode, before the box opening operation of the earphone box, the first charging circuit is controlled to be activated to the working mode through an activation signal sent by the earphone box, and the protection circuit is controlled to enter the conducting state through a pull-up level output by the first charging circuit, so that power can be supplied to the first processor. Step 210 is the low power mode of the first charging circuit, i.e. the low power mode in step 105, which directly connects the working principle of the wireless headset during normal use by the user in steps 101-107, and thereafter the user can use the wireless headset system normally in the manner of steps 101-107. It should be noted that, in combination with the principle description of fig. 6A to fig. 6F, in order to save cost, the first magnetic sensor 713, the second magnetic sensor 717, and the third magnetic sensor 718 may also be implemented by using one magnetic sensor, 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 headset is in the box-shaped state, the first charging circuit 712 is in the low power consumption mode, and the first charging circuit 712 does not supply power to the first processor 711, so that the first charging circuit 712 cannot be configured to be in the working mode by the first processor 711, in this embodiment of the present application, the magnetic sensor connected to the first charging circuit 712 detects the opening operation of the headset box, so as to implement the configuration of the first charging circuit 712 to be in the working mode (i.e., implement the function of the first magnetic sensor 713), thereby implementing the activation of the wireless headset, and solving the problem that the wireless headset cannot be activated to the working mode in the prior art. The first charging circuit 712 may be in an active mode, and the closing operation of the earphone box may be detected by the first processor 711 determining the closing operation of the earphone box by the user (i.e. implementing the function of the third magnetic sensor 718) according to the magnetic sensor detecting the magnetic field strength generated by the magnet in the earphone box or the interrupt signal. Further, the first charging circuit 712 is in the active mode, and the detection of the headset in the box in step 209 may be that the first processor 711 determines that the wireless headset is in the box (i.e., implements the function of the second magnetic sensor 717) specifically based on the magnetic sensor detecting the magnetic field strength generated by the magnet in the headset box or the interrupt signal.

Specifically, referring to fig. 11, an embodiment of the present application further provides a specific circuit structure of a wireless headset. The wireless headset includes a battery 716, a first processor 711, and a specific chip structure of a protection circuit 714, a first charging circuit 712, and a first magnetic sensor 713 is also shown in fig. 11. As shown in fig. 11, the positive electrode VBAT of the battery 716 is connected to the input terminal PCKP of the protection circuit 714, and the negative electrode 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, a discharging loop between the positive electrode VBAT and the negative electrode VBAT of the battery 716 is conducted, and power is output to the 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 an open circuit state, the discharge circuit of the battery 716 is opened, so that the discharge circuit between the positive electrode VBAT and the negative electrode VBAT of the battery 716 is disconnected, and the output of power to VBAT is stopped. The trigger circuit 715 may specifically employ a switch transistor, where 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 may control the switch transistor to turn on the input terminal PCKP of the protection circuit 714 and the ground terminal GND through a first trigger signal, so that a pull-down level is output at the input terminal PCKP of the protection circuit 714 through the ground terminal GND to trigger the protection circuit 714 to enter an open state, where the input terminal PCKP of the protection circuit 714 is directly turned on the ground terminal GND, and 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 (e.g., pogo pin), the battery terminal BATT of the first charging circuit 712 is connected to the positive electrode VBAT of the battery 716, when a charging voltage (e.g., 5V voltage) is input to the input terminal IN of the first charging circuit 712, the charging voltage can be provided to the battery 716 through the battery terminal BATT for charging, and the input terminal PCKP of the protection circuit 714 can be pulled high (i.e., a pull-up level is input to the input terminal of the protection circuit 714, which may be a high level, e.g., the charging voltage provided to the battery 716 by the first charging circuit 712 through the battery terminal BATT), so as to trigger the protection circuit 714 into a conducting state (i.e., an open state), so that the battery 716 outputs power to the VBAT. IN this embodiment, the battery terminal BATT of the first charging circuit 712 is connected to VBAT, and the power source terminal VDD of the first magnetic sensor 713 is connected to VBAT, so that the battery 716 can supply power to the first charging circuit 712 and the first magnetic sensor 713, the embodiment further includes a switching transistor K1, the switching transistor K1 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 opening operation of the earphone box according to the detected magnetic field strength of the magnet, so as to output a control signal to the switching transistor K1 to turn on the control terminal INT (CHG-IN) of the first charging circuit 712 and the ground terminal GND, and further pull down the control terminal INT (CHG-IN) of the first charging circuit 712 (at this time, the first charging circuit 712 receives the first signal). The first charging circuit 712 supplies power to the first processor 711 through a system power pin SYS (VBAT-SYS) in the operating mode.

In addition, as shown with reference to 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 functional pins such as: OUTN, SINK, GND; it is understood that other functional pins of these chips may implement other functions of the corresponding chip or provide a connection interface for peripheral components of the chip, and of course, since the embodiments of the present application do not relate to the specific functions of these pins, they will not be described in detail herein.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A wireless headset capable of being housed in a headset case, the wireless headset comprising 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 opening operation of 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 headset of 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 the wireless headset is placed in a headset 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 state according to the pull-down level, and in the open state, the protection circuit stops supplying power to the first charging circuit.

3. The wireless headset of claim 2,

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

the protection circuit is configured to enter a conductive state according to the pull-up level, in which the protection circuit supplies power to the first charging circuit.

4. The wireless headset of claim 1, further comprising a second magnetic sensor;

the first processor is configured to send a third signal to the first charging circuit when the wireless headset is determined to be 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. A wireless headset according to any of claims 1-4, characterized in that the low power mode comprises a shipping mode shi pmode.

6. The wireless headset of claim 3, wherein the first charging circuit is connected to the headset case via a connector; the activation signal includes a charging voltage.

7. The wireless headset of claim 6, the connector comprising a pogo pin pi n connector.

8. A wireless headset capable of being housed in a headset case, the wireless headset comprising a first processor, a first charging circuit, and a third magnetic sensor;

the third magnetic sensor configured to transmit a fourth signal to the first processor in response to a box-closing operation of the earphone box;

the first processor configured to transmit 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 headset of claim 8, wherein the low power mode comprises a ship mode shi pmode.

10. An earphone box is used for containing wireless earphones, and is characterized by comprising a second processor, a second charging circuit and a touch control piece;

the touch control is configured to respond to a trigger action of a user and send a second trigger signal to the second processor;

the second processor configured to control the second charging circuit to transmit an activation signal to the wireless headset in response to the second trigger signal; the activation signal is used for controlling a first charging circuit of the wireless headset to enter a low power consumption mode and outputting a pull-up level to a protection circuit of the wireless headset, so that the protection circuit supplies power to the first charging circuit.

11. The headset case of claim 10, wherein the second charging circuit is connected to the wireless headset via a connector; the activation signal includes a charging voltage.

12. The headset case of claim 11, the connector comprising a pogo pin pi n connector.

13. Earphone box according to any of claims 10-12, wherein the earphone box comprises at least one or more of the following wearable devices: watch, wristband or bracelet.

14. A wireless headset system, comprising: the wireless headset according to any of the claims 1-9 and the headset case according to any of the claims 10-13, wherein the headset case is adapted to house the wireless headset.

15. The wireless headset system of claim 14, wherein the wireless headset is attached to a lid of the headset case when the headset case is opened.

16. The wireless headset system of claim 14, wherein the headset case comprises at least one or more of the following wearable devices: watch, wristband or bracelet.