CN111601204A

CN111601204A - Wireless earphone based on human body communication and communication method, system and device thereof

Info

Publication number: CN111601204A
Application number: CN202010413164.2A
Authority: CN
Inventors: 符谋政
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-08-28

Abstract

The application discloses a wireless earphone based on human body communication, which comprises two earphone bodies, wherein each earphone body comprises an earphone shell and a human body communication electrode, and the human body communication electrode is arranged in the earphone shell; the human body communication electrodes of the two earphone bodies are used for forming a human body communication signal channel for communication signal transmission together with the body of the user when the two earphone bodies are both in a wearing state of the user. The application also discloses a communication method of the wireless earphone based on human body communication, in the communication process of the wireless earphone based on human body communication, signal transmission can be carried out between the two earphone bodies through a human body communication signal channel, therefore, signal synchronization between the two earphones can be better realized, more reliable and stable communication connection can be realized, and the communication quality and the user experience can be improved. The application also discloses a wireless earphone device based on human body communication and a communication system based on human body communication.

Description

Wireless earphone based on human body communication and communication method, system and device thereof

Technical Field

The present application relates to the field of headset technologies, and in particular, to a wireless headset based on human body communication, and a communication method, system, and apparatus thereof.

Background

Wireless headsets, such as True Wireless Stereo (TWS) headsets, are becoming more and more popular because they are convenient to carry, and there are some problems affecting the user experience during the use of Wireless headsets.

For example, in the current use of a wireless headset, the way of implementing communication between a mobile terminal (e.g. a mobile phone) and two headsets of the wireless headset includes a way of transmitting a communication signal (e.g. audio data) to a main headset and a secondary headset respectively by the mobile terminal, which is prone to a phenomenon of signal asynchronization between the two headsets due to the limitation of compatibility of a system platform of the mobile terminal, and affects the user experience. The mode of realizing communication between the mobile terminal and the two earphones of the wireless earphone also comprises a mode of transmitting a communication signal to the main earphone by the mobile terminal and then transmitting the communication signal to the auxiliary earphone by the main earphone, wherein the main earphone and the auxiliary earphone are usually connected in a Bluetooth (Bluetooth) mode and the communication signal is transmitted based on the Bluetooth mode; but because the diffraction nature of bluetooth signal is relatively poor, receive human separation easily to receive the interference of wiFi, other bluetooth signal and other signals easily, can have the problem that signal delay etc. can't realize the signal synchronization between two earphones between main earphone and the auxiliary earphone, influence user's experience.

Disclosure of Invention

The application provides a wireless earphone based on human body communication and a communication method, a system and a device thereof, which can better realize the signal synchronization between two earphones of the wireless earphone so as to improve the experience of a user.

In order to solve the technical problem, in a first aspect, an embodiment of the present application provides a wireless headset based on human body communication, including two headset bodies, each headset body including a headset housing and a human body communication electrode, the human body communication electrode being disposed in the headset housing; the human body communication electrodes of the two earphone bodies are used for forming a human body communication signal channel for communication signal transmission together with the body of the user when the two earphone bodies are both in a wearing state of the user. In this wireless headset's based on human communication process, can carry out signal transmission through human communication signal channel between two earphone bodies, compare in modes such as carrying out communication through the bluetooth between the earphone, signal synchronization between two earphones can be realized better to the mode based on human communication, and human communication connection can realize more reliable, stable communication connection to improve communication quality and improve user experience.

In a possible implementation of the first aspect, each earphone body includes at least one human body communication electrode, and the human body communication electrode is at least partially exposed on an outer surface of the earphone housing, so as to be in contact with a body of a user when the earphone body is in a wearing state of the user, so as to establish a human body communication signal channel in a current coupling manner.

In a possible implementation of the first aspect, the part of the human body communication electrode exposed on the outer surface of the earphone shell is located on a side of the earphone shell facing the ear canal of the user when the earphone body is in the wearing state of the user; and/or the part of the human body communication electrode exposed out of the outer surface of the earphone shell is positioned on one side of the earphone shell, which is back to the auditory canal of the user when the earphone body is in a wearing state of the user.

In one possible implementation of the first aspect described above, each earphone body includes two human body communication electrodes.

In one possible implementation of the first aspect described above, each earphone body includes at least one human body communication electrode; the human body communication electrode is not exposed out of the outer surface of the earphone shell, and the distance between the human body communication electrode and the body of a user is a preset distance when the earphone body is in a wearing state of the user, so that a human body communication signal channel is formed in a capacitive coupling mode; or the human body communication electrode is at least partially exposed out of the outer surface of the earphone shell and is used for being in contact with the body of a user when the earphone body is in a wearing state of the user so as to establish a human body communication signal channel in a capacitive coupling mode; or the human body communication electrode is at least partially exposed on the outer surface of the earphone shell, so that the distance between the earphone body and the body of the user is a preset distance when the earphone body is in a wearing state of the user, and a human body communication signal channel is formed in a capacitive coupling mode.

In a possible implementation of the first aspect, each earphone body further includes a proximity sensor for detecting whether the earphone body is in a wearing state of a user; and/or each headphone body further comprises a motion sensor for detecting a change in the state of motion of the user.

In a possible implementation of the first aspect, at least one of the headset bodies further includes a bluetooth communication module, and the bluetooth communication module is configured to perform bluetooth communication with an external terminal device to receive a communication signal sent by the external terminal device and/or send a communication signal to the external terminal device.

In one possible implementation of the first aspect, the human-body communication-based wireless headset further includes a control component, the control component is disposed in the headset housing, and the control component is connected with at least the human-body communication electrode for performing an operation related to transmission of the communication signal in the human-body communication signal channel.

In one possible implementation of the first aspect described above, the human body communication based wireless headset is a true wireless stereo headset based on human body communication.

In a possible implementation of the first aspect, each of the headphone bodies further includes an audio component, and the audio component is configured to collect an audio signal and play the audio signal.

In a possible implementation of the first aspect, the earphone shells of the two earphone bodies have the same structure and are mirror-symmetrical.

In a second aspect, an embodiment of the present application provides a communication method of a wireless headset based on human body communication, where the wireless headset based on human body communication includes a first headset and a second headset, and the method includes: the first earphone and the second earphone are both worn by a user, and a human body communication signal channel is formed among the human body communication electrode of the first earphone, the body of the user and the human body communication electrode of the second earphone; the first earphone and the second earphone establish communication connection through the human body communication signal channel and transmit communication signals.

In one possible implementation of the second aspect, the method further includes: the first earphone is connected with external terminal equipment; the first earphone receives a communication signal sent by external terminal equipment, and sends the communication signal to the second earphone through a human body communication signal channel; the second earphone executes corresponding operation according to the communication signal.

In one possible implementation of the second aspect, the method further includes: the first earphone receives the communication signal sent by the second earphone through the human body communication signal channel, and sends the communication signal to the external terminal equipment.

In one possible implementation of the second aspect described above, the communication signal comprises audio data.

In one possible implementation of the second aspect, the establishing a communication connection between the first headset and the second headset includes: the method comprises the steps that a first earphone sends an initial connection signal to a second earphone at preset power, wherein the initial connection signal comprises information of the preset power; the second earphone receives the initial connection signal and obtains the received power of the received initial connection signal; the second earphone determines a first power attenuation coefficient according to the received power and the preset power; the second earphone adjusts the transmitting power of the second earphone according to the first power attenuation coefficient, and the second earphone sends a connection receiving response to the first earphone, wherein the connection receiving response comprises connection receiving information and the first power attenuation coefficient; the first earphone receives the connection acceptance response and establishes connection with the second earphone.

In one possible implementation of the second aspect, the method further includes: the first earphone adjusts the transmitting power of the first earphone according to the first power attenuation coefficient; the first headset and the second headset transmit communication signals at respective adjusted powers.

In a possible implementation of the second aspect, the method further comprises, during communication between the first headset and the second headset, performing the following: the first earphone sends the transmission power information when the first earphone sends the communication signal to the second earphone; the second earphone determines a second power attenuation coefficient according to the received transmitting power information of the first earphone and the obtained receiving power of the received communication signal; the second earphone adjusts the own transmitting power according to the second power attenuation coefficient so as to be used for sending the communication signal, and sends the second power attenuation coefficient to the first earphone; and the first earphone receives the second power attenuation coefficient and adjusts the transmission power of the first earphone according to the second power attenuation coefficient for sending the communication signals.

In a possible implementation of the second aspect, the transmitting power information when the first headset transmits the communication signal to the second headset by the first headset includes: the method comprises the steps that a first earphone sends transmission power information when sending a communication signal to a second earphone every time; or the first earphone sends the transmission power information to the second earphone according to the preset frequency; or when the wearing state of the user of the first earphone and/or the second earphone changes, the first earphone sends the transmission power information to the second earphone.

In a possible implementation of the second aspect, if a wearing state of the first earphone and/or the second earphone changes, the method further includes: determining whether the first earphone and the second earphone remain connected; if the connection is kept, the first earphone and the second earphone adjust the respective transmitting power and send the communication signals according to the adjusted transmitting power; and if the connection is not kept, the first earphone and the second earphone establish communication establishment.

In a possible implementation of the second aspect, if the wearing state of the first earphone and the second earphone is not changed, the method further includes: the first earphone and the second earphone transmit communication signals with current transmitting power.

The communication method of the wireless headset based on human body communication provided by the present application is applied to the wireless headset based on human body communication provided by the first aspect and/or any one of the possible implementation manners of the first aspect, so that the beneficial effects (or advantages) of the wireless headset based on human body communication provided by the first aspect can also be achieved.

In a third aspect, an embodiment of the present application provides a wireless headset device based on human body communication, including: a charging box for accommodating the wireless headset based on human body communication, and the wireless headset based on human body communication as described above.

The human-body-communication-based wireless headset device provided by the present application includes the human-body-communication-based wireless headset provided by the first aspect and/or any one of the possible implementation manners of the first aspect, so that the beneficial effects (or advantages) of the human-body-communication-based wireless headset provided by the first aspect can also be achieved.

In a fourth aspect, an embodiment of the present application provides a human body communication-based communication system, including the foregoing human body communication-based wireless headset, and an external terminal device, where the external terminal device is configured to establish a connection with a first headset in the human body communication-based wireless headset; the external terminal equipment is used for sending a first communication signal to the first earphone and receiving a second communication signal sent by the first earphone; the first earphone is used for sending a first communication signal to the second earphone through the human body communication signal channel and receiving a second communication signal sent by the second earphone through the human body communication signal channel; the second earphone is used for sending a second communication signal to the first earphone through the human body communication signal channel and receiving a first communication signal sent by the first earphone through the human body communication signal channel.

The human-body communication-based communication system provided by the present application includes the human-body communication-based wireless headset provided in the first aspect and/or any one of the possible implementation manners of the first aspect, and therefore, the beneficial effects (or advantages) of the human-body communication-based wireless headset provided by the first aspect can also be achieved.

In a fourth aspect, an embodiment of the present application provides an electronic device, including: a memory for storing a computer program, the computer program comprising program instructions; a processor configured to execute program instructions to cause an electronic device to perform the communication method of the wireless headset based on human body communication as provided in the second aspect and/or any one of the possible implementations of the second aspect.

In a fifth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program includes program instructions that are executed by a computer to make the computer execute the communication method of the wireless headset based on human body communication provided in any one of the possible implementation manners of the second aspect and/or the second aspect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.

Fig. 1 is a schematic diagram illustrating a power loss scenario of a communication system when a distance H between an HBC electrode and a user's skin corresponds to different communication frequencies, according to some embodiments of the present application;

FIG. 2A is a block diagram illustrating a configuration of a TWS wireless headset based on human body communication, according to some embodiments of the present application;

2B-2D are schematic diagrams illustrating external configurations of some of the TWS wireless headsets of FIG. 2A based on human body communication, according to some embodiments of the present application;

FIG. 2E is a block diagram illustrating the structure of another TWS wireless headset based on human body communication, according to some embodiments of the present application;

FIG. 3A is a block diagram illustrating the structure of yet another TWS wireless headset based on human body communication, according to some embodiments of the present application;

3B-3D are schematic diagrams illustrating external configurations of some of the TWS wireless headsets of FIG. 3A based on human body communication, according to some embodiments of the present application;

FIG. 3E is a block diagram illustrating the structure of yet another TWS wireless headset based on human body communication, according to some embodiments of the present application;

FIG. 4 is a schematic diagram illustrating a configuration of a TWS wireless headset device based on human body communication according to some embodiments of the present application;

fig. 5 is a schematic diagram illustrating an application scenario of a TWS wireless headset based on human body communication according to some embodiments of the present application;

fig. 6A is a schematic diagram illustrating two earpieces of a TWS wireless earpiece based on human body communication forming an HBC signal path with the human body in a current-coupled manner, according to some embodiments of the present application;

FIG. 6B is a schematic diagram illustrating two earpieces of another TWS wireless earpiece based on human body communication forming HBC signal channels with the human body in a capacitive coupling manner according to some embodiments of the present application;

fig. 7A is a flow chart illustrating a communication method of a TWS wireless headset based on human body communication, according to some embodiments of the present application;

FIG. 7B is a flow chart illustrating another method of communication for a TWS wireless headset based on human body communication, according to some embodiments of the present application;

fig. 7C is a flow chart illustrating a communication method of yet another TWS wireless headset based on human body communication, according to some embodiments of the present application;

figures 8A and 8B are schematic diagrams illustrating application scenarios of some HBC communications, according to some embodiments of the present application;

FIG. 9 is a schematic diagram illustrating an electronic device, according to some embodiments of the present application;

fig. 10 is a schematic diagram illustrating a structure of a system on a chip (SoC), according to some embodiments of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Human Body Communication (HBC) refers to a Communication method for transmitting a Communication signal using a Human Body as a signal (information) channel, and its feasibility is based on the conductive capability of Human biological tissue and related to the electrical characteristics of Human biological tissue.

Studies on the electrical conductivity of human biological tissues have shown that as the frequency of signals increases, the dielectric constant of most living tissues or organs in the human body generally decreases greatly, and the electrical conductivity thereof increases significantly, i.e. it means that HBC should be performed at higher frequencies to reduce the attenuation of signals during communication.

However, when the frequency of the signal is increased, the wavelength of the signal is correspondingly shortened, and when the wavelength of the signal is close to the height of a person, the person can emit electromagnetic waves to the surroundings as a radio frequency antenna, which causes the dissipation of the signal, and even causes the intensity of the signal coupled through the air to gradually exceed the intensity of the signal coupled through the person, so that the signal with too high frequency is not suitable for the HBC.

Therefore, when HBC is performed, the signal frequency can be selected in the range of 10kHz to 100 MHz.

Further, establishing an HBC connection requires two or more devices to contact the human body simultaneously, or to be kept at a distance from the human body. In addition, the devices may communicate in a simplex or duplex manner.

Depending on the coupling method, the HBC can be classified into two HBC methods, namely capacitive coupling (also called electric field coupling) and current coupling (also called waveguide coupling). Whether the HBC is in capacitive coupling or current coupling, HBC electrodes (antennas) are needed at the transmitting end and the receiving end of a signal to establish a signal channel, and the most intuitive difference between the two modes is whether the HBC electrodes are in contact with a human body or not.

The capacitive coupling HBC establishes a signal channel (communication loop) by respectively performing capacitive coupling on at least one HBC electrode at a transmitting end and at least one HBC electrode at a receiving end with a human body and ground, so as to realize signal conduction. In the capacitive coupling HBC, only at least one HBC electrode needs to be arranged on the transmitting end and the receiving end respectively and contacts with a human body, even the HBC electrodes can not contact with the human body, and the capacitive coupling can be realized only by keeping a certain distance from the human body.

Further, in the capacitive coupling HBC, the distance H between the HBC electrode and the human body may be any value of 0mm or more and 3mm or less, and may be, for example, 0mm, 0.5mm, 1mm, 1.5mm, 2mm, 2.8mm, 3mm, or the like. Of course, the distance H between the HBC electrode and the human body may be another value determined according to the attribute such as the communication frequency of the HBC electrode.

The current coupling HBC is that at least one electrode of a signal sending end injects a weak current signal into a human body, and then at least one electrode of a receiving end detects the signal transmitted by the human body. That is, all electrodes in the current coupling HBC mode should be attached to the human body and in contact with the human body.

The HBC is a signal transmitted through a human body, and therefore, the close contact degree between the HBC electrode and the human body or the distance between the HBC electrode and the human body is an important parameter affecting the communication rate, the communication bandwidth and the stability of the communication connection.

In the application scenario of the HBC, different users or different motion states of the users may cause a change in a contact state of an electrode of the HBC with the skin of the user (the skin of the ear of the user) or a change in a distance between the electrode and the skin of the user, thereby causing a change in a power attenuation parameter of a signal channel (an information transmission link), and finally causing a loss in a communication rate, a communication bandwidth, a communication connection stability, and the like.

For example, referring to fig. 1, fig. 1 shows a distance H between an HBC electrode and a human body versus a power attenuation parameter S of a communication system at different communication frequencies₂₁In which the power attenuation parameter S₂₁Refers to the power attenuation value of the signal in the process from the HBC electrode as the transmitting end to the HBC electrode as the receiving end. It can be seen that in the communication system, for signals with the signal frequency below 0.6GHz and other signals in some frequency bands, the smaller the distance H between the HBC electrode and the human body, the smaller the power attenuation parameter S₂₁The smaller. For the HBC communication, the smaller the distance H between the HBC electrode and the human body is, the smaller the power attenuation parameter is, and the more stable and reliable communication can be realized.

The TWS earphone is a kind of wireless earphone, the TWS earphone does not need the connection of wire rod, only has two simple earphone main parts, consequently can not appear the winding problem of earphone cord, and the TWS earphone possesses the binaural stereo broadcast function in addition, and TWS can select stereo broadcast audio frequency, and two earphones of left and right sides of TWS earphone can be used freely in modes such as independent respectively.

In an implementation manner of the present application, the wireless headset based on human body communication provided by the present application may be a TWS headset based on human body communication, and the TWS headset based on human body communication includes two headset bodies, and the two headset bodies communicate based on an HBC method. Each of the headset bodies includes, but is not limited to, a headset case, and components such as an HBC electrode, a proximity sensor, a motion sensor, an audio component (a microphone, a receiver, and the like), a bluetooth communication module, and a control component, which are provided in the headset case.

Referring to fig. 2A, for example, in an implementation manner of the present application, the TWS headset based on human body communication includes two headset bodies, namely, a headset a and a headset B, and an HBC connection may be established between the two headset bodies of the headset a and the headset B based on a current coupling HBC manner. Wherein:

the headset a includes, but is not limited to, a control part a0 (including a processor, a memory, and the like, which are related to a headset chip for implementing functions of the wireless headset), and a bluetooth communication module a1, an HBC electrode a2, a motion sensor A3 (e.g., A3-axis acceleration sensor, a gyroscope, a geomagnetic sensor, and the like), a proximity sensor a4 (e.g., a proximity light sensor), and an audio part a5 (e.g., a microphone, a receiver, and the like) which are respectively connected to the control part a0, and the control part a0, the bluetooth communication module a1, the HBC electrode a2, the motion sensor A3, the proximity sensor a4, and the audio part a5 are all disposed in a headset case of the headset a. Further, the HBC electrode a2 may include two HBC electrodes of the HBC electrode a21 and the HBC electrode a 22.

The headset B includes, but is not limited to, a control part B0 (including a processor, a memory, and other headset chip-related parts related to functions of a wireless headset), and a bluetooth communication module B1, an HBC electrode B2, a motion sensor B3 (e.g., a 3-axis acceleration sensor, a gyroscope, a geomagnetic sensor, and the like), a proximity sensor B4 (e.g., a proximity optical sensor), and an audio part B5 (e.g., a microphone, a receiver, and the like) respectively connected to the control part B0, and the control part B0, the bluetooth communication module B1, the HBC electrode B2, the motion sensor B3, the proximity sensor B4, and the audio part B5 are all disposed in a headset housing of the headset B. Further, the HBC electrode B2 may include two HBC electrodes, an HBC electrode B21 and an HBC electrode B22.

Referring to fig. 2B, fig. 2B shows an external structure of the earphone a and the earphone B shown in fig. 2A, where the external structure of the earphone a may be the same as the external structure of the earphone B and may be mirror-symmetrical to the external structure of the earphone B. The earphone shells of the earphone A and the earphone B comprise an ear part 100 and an outer extension part 200, the ear part 100 is a part located in the ear of a user when the earphone body is in a use state, and the outer extension part 200 is a part located outside the ear of the user when the earphone body is in the use state.

In addition, the ear insertion portion 100 includes a first surface 111 and a second surface 112, where the first surface 111 is a surface of the ear insertion portion 100 facing the ear canal of the user when the earphone body is in a user wearing state (wearing the ear of the user), and the second surface 112 is a surface of the ear insertion portion 100 facing away from the ear canal of the user (or a surface opposite to the first surface 111) when the earphone body is in the user wearing state.

With continued reference to fig. 2B, in one implementation of the present application, for headset a, both HBC electrode a21 and HBC electrode a22 are at least partially exposed at first face 111, and a contact portion is formed on first face 111 for contacting with the body of the user (the skin of the user's ear) when headset a is in a worn state.

The first face 111 is formed with a proximity sensor outlet a41 corresponding to the proximity sensor a4, and the proximity sensor a4 is at least partially exposed to the first face 111 through the proximity sensor outlet a41 for detecting whether the headset a is in a user wearing state.

The proximity sensor leakage port a41 (or the portion of the proximity sensor a4 that leaks from the first surface 111) may be circular and located at a middle position of the first surface 111, and the portions of the HBC electrode a21 and the HBC electrode a22 that are exposed to the first surface 111 may be circular and located below the proximity sensor leakage port a 41.

Referring to fig. 2B, in the TWS headset based on human body communication provided by the present application, the headset a further includes a headset air opening a62 disposed on the first face 111 beside the leakage portion of the proximity sensor leakage port a41, and a headset air opening a61 disposed on both the first face 111 and the second face 112.

Further, in the present implementation, for the earphone B, both the HBC electrode B21 and the HBC electrode B22 are at least partially exposed to the first face 111, and a contact portion is formed on the first face 111 for contacting with the skin of the ear of the user when the earphone B is in the wearing state of the user.

The first face 111 is formed with a proximity sensor outlet B41 corresponding to the proximity sensor B4, and the proximity sensor B4 is at least partially exposed to the first face 111 through the proximity sensor outlet B41 for detecting whether the headset B is in a user wearing state.

The proximity sensor leakage port B41 (or the portion of the proximity sensor B4 that leaks from the first surface 111) may be circular and located at a middle position of the first surface 111, and the portions of the HBC electrode B21 and the HBC electrode B22 that are exposed to the first surface 111 may be circular and located below the proximity sensor leakage port B41.

Referring to fig. 2B, the TWS headset based on human body communication according to the present application further includes a headset wind gap B62 disposed on the first face 111 beside the leakage portion of the proximity sensor leakage port B41, and a headset wind gap B61 disposed on both the first face 111 and the second face 112.

Referring to fig. 2C, for example, in another implementation manner of the present application, for earphone a, compared to earphone a shown in fig. 2B, HBC electrode a21 and HBC electrode a22 may be respectively exposed on first face 111, and portions of HBC electrode a21 and HBC electrode a22 exposed on first face 111 may be respectively linear and located at two sides close to sensor leakage port a41, and respectively extend along an edge of first face 111.

In this implementation, for the earphone B, the structure is the same as that of the earphone a and is mirror symmetry, which is not described herein again.

Referring to fig. 2D, for example, in another implementation of the present application, for earphone a, compared to earphone a shown in fig. 2C, HBC electrode a21 may be exposed on first face 111 and second face 112 at the same time, and the portion of HBC electrode a21 exposed on first face 111 and second face 112 may be linear; in addition, the HBC electrode a22 may be exposed to the first surface 111 and the second surface 112 simultaneously, and a portion of the HBC electrode a22 exposed to the first surface 111 and the second surface 112 may be linear.

The portions of the HBC electrode a21 and the HBC electrode a22 exposed at the first face 111 and the second face 112 are located on both sides of the proximity sensor leak port a41, respectively.

In this embodiment, the structure of the earphone B is the same as that of the earphone a and is mirror-symmetrical, which is not described herein again.

Further, in the present application, the positions, shapes, and the like of the portions of HBC electrode a21 and HBC electrode a22 and HBC electrode B21 and HBC electrode B22 exposed to ear 100 may be selected as needed, as long as the HBC electrode can be in contact with the skin of the ear of the user when the earphone body is in the wearing state of the user.

In the present application, the positions, shapes, and the like of the proximity sensor outlet a41 (or the portion of the proximity sensor a4 exposed to the ear entrance 100) and the proximity sensor outlet B41 (or the portion of the proximity sensor B4 exposed to the ear entrance 100) may be selected as needed, so long as the TWS headset using the human body communication can satisfy the requirement of detecting whether the headset body is in the state of being worn by the user when the TWS headset is used by the user.

In this application, earphone wind gap A61 and earphone wind gap A62 and earphone wind gap B61 and earphone wind gap B62's position, shape etc. all can set up as required. The proximity sensor a4 and the proximity sensor B4 may be other detection means for detecting whether or not the headphone body is inserted into the ear (i.e., in a state of being worn by the user).

In addition, in the TWS headset based on human body communication in which the HBC connection is established in the current coupling HBC manner, the number of the HBC electrodes in each headset body may be the same, for example, two HBC electrodes may be respectively provided as shown in fig. 2A to 2D, or one HBC electrode or three or four HBC electrodes may be respectively provided, and in addition, the HBC electrodes in each headset body may also be different, and the number thereof may be specifically set as needed.

The external structures of the earphone a and the earphone B can be the same and mirror-symmetrical, and the external structures of the earphone a and the earphone B can also be different, for example, the HBC electrode a21 and the HBC electrode a22 arranged on the earphone a can be different from the shapes, the arrangement positions and the like of the HBC electrode B21 and the HBC electrode B22 arranged on the earphone B, as long as the HBC electrodes are in contact with the skin of the user when the earphone body is in a wearing state of the user, and can be selected as required.

It should be noted that the headset body of the TWS headset based on human body communication provided by the present application may further include more components as needed, which is not described in detail herein.

In this application, the headset a and the headset B may establish an HBC connection for communication through an HBC signal channel formed by the HBC electrode and the body of the user in a current coupling manner, and certainly, may also perform bluetooth communication through the bluetooth communication module a1 and the bluetooth communication module B1, which may be selected as needed.

Referring to fig. 2E, in another implementation manner of the present application, only the headset a may have the bluetooth communication module a1, and the headset B may not have the bluetooth communication module, so that the headset a may perform bluetooth communication with other external terminals through the bluetooth communication module a1, and the HBC communication may be performed between the headset a and the headset B through the HBC signal channel formed by the HBC electrode and the body of the user. Of course, only the headset B may have the bluetooth communication module B1, and the headset a may not have the bluetooth communication module, which may be selected as needed.

According to the TWS earphone based on human body communication, when the TWS earphone based on human body communication is in a use state, an HBC signal channel is formed between the two earphones of the TWS earphone based on human body communication through a user body to establish HBC connection for HBC communication, compared with a mode of carrying out Bluetooth communication between the two earphones, the mode of carrying out HBC communication between the two earphones is small in interference of other signals on HBC communication signals, and the synchronization of signals between the two earphones can be better guaranteed; further, the HBC is more reliable in connection, signal transmission is more stable, and more reliable and stable communication connection can be achieved, so that communication quality is improved, and better user experience can be achieved.

The application also provides a TWS earphone based on human body communication, and HBC connection can be established between two earphone bodies of the TWS earphone based on human body communication in a capacitive coupling HBC mode to carry out HBC communication.

For example, referring to fig. 3A, in comparison with the TWS headset for human body communication based on current coupling for communication shown in fig. 2A to 2E, in the TWS headset for human body communication based on HBC communication based on capacitive coupling for HBC communication, the headset a may be provided with only one HBC electrode a20, and the headset B may be provided with only one HBC electrode B20.

For example, referring to fig. 3B, in one implementation of the present application, the HBC electrode a20 provided on the earphone a may be at least partially exposed on the first face 111 of the earphone a and located below the proximity sensor outlet a41 for contacting with the skin of the ear of the user when the earphone body is in the wearing state of the user.

In addition, the HBC electrode B20 disposed on the earphone B may be at least partially exposed on the second face 112 of the earphone B, so as to be in contact with the ear skin of the user when the earphone body is in the wearing state of the user, or may not be in contact with the ear skin, and only needs to keep the aforementioned distance H from the ear skin of the user.

Referring to fig. 3C, for example, in another implementation of the present application, compared to the headset a shown in fig. 3B, a portion of the HBC electrode a20 disposed on the headset a exposed to the first face 111 may be linear and located above the proximity sensor outlet a41 and extend along an edge of the first face 111 for contacting the skin of the ear of the user when the headset a is in the wearing state of the user.

Referring to fig. 3D, in another implementation of the present application, as compared to the earphone a shown in fig. 3C, the HBC electrode a20 disposed on the earphone a may be exposed on the first face 111 and the second face 112 at the same time, and the portion of the HBC electrode 133 exposed on the first face 111 and the second face 112 may be linear and located below the proximity sensor outlet a41 for contacting with the skin of the ear of the user when the earphone a is in a wearing state.

In this application, the positions of the portions of HBC electrode a20 and HBC electrode B20 exposed to ear 100 may be selected as needed, as long as both HBC electrode a20 and HBC electrode B20 are in contact with the skin of the user's ear when the earphone body is in the wearing state of the user, or one of them may be in contact with the skin of the user's ear and the other is in the aforementioned distance H, or as long as the distances between HBC electrode a20 and HBC electrode B20 and the skin of the user's ear when the earphone body is in the wearing state are both in the aforementioned distance H.

In the present embodiment, the HBC electrode a20 provided on the earphone a and the HBC electrode B20 provided on the earphone B may be different in shape, installation position, and the like, or may be the same, and they may be selected as needed.

In this application, the HBC connection can be established between the headset a and the headset B through the HBC electrode and the user body based on the capacitive coupling manner to perform the HBC communication, and certainly, the bluetooth communication can also be performed through the bluetooth communication module a1 and the bluetooth communication module B1, which can be selected as needed.

Referring to fig. 3E, in another implementation manner of the present application, only the headset B may have the bluetooth communication module B1, and the headset a may not have the bluetooth communication module, so that the headset B may perform bluetooth communication with other external terminals through the bluetooth communication module B1, and the headset a and the headset B perform HBC communication through the HBC electrode and the body of the user. Of course, only the headset a may have the bluetooth communication module a1, and the headset B may not have the bluetooth communication module, which may be selected as needed.

In this application, to the earphone that establishes HBC connection through capacitive coupling HBC mode, the HBC electrode in the earphone also can not leak the earphone shell, only need be when being in the user wearing state, and the distance between the skin of user is aforementioned H can.

In the present application, the number of the HBC electrodes, the position and the shape of the portion of the HBC exposed to the ear 100, and the like may be determined according to the requirements for the tightness of the contact between the HBC electrodes and the body of the user, the requirements for the size of the contact area, and the like.

When the TWS earphone based on human body communication is in a use state, one of the earphone A and the earphone B can be used as a main earphone, the other can be used as an auxiliary earphone, the main earphone is provided with a Bluetooth communication module, the auxiliary earphone can be not provided with the Bluetooth communication module, the main earphone receives a signal sent by a terminal device (such as a mobile phone) through the Bluetooth communication module of the main earphone, the signal is forwarded to the auxiliary earphone through an HBC signal channel established by an HBC electrode and a user human body, and further, the main earphone receives the signal sent by the auxiliary earphone through the HBC signal channel, and the main earphone forwards the signal sent by the auxiliary earphone to the terminal device through the Bluetooth communication module.

For example, if the headset a is used as a main headset and the headset B is used as an auxiliary headset, the headset a is provided with a bluetooth communication module for establishing a bluetooth connection with the terminal device to perform communication, and the headset B does not need to be provided with a bluetooth communication module and only needs to perform HBC communication with the headset a. Of course, the sub-headset may also be provided with a bluetooth communication module.

The wireless headset based on human body communication provided by the application can also be other wireless headsets based on human body communication besides TWS headsets.

The battery, the control circuit and other parts of the TWS earphone based on human body communication are all arranged in the earphone shell.

For example, referring to fig. 4, the present application further provides a TWS headset device based on human body communication, the TWS headset device based on human body communication includes the TWS headset based on human body communication and a charging box 10, the charging box 10 is a box body integrating charging and storage, a portable power source function is integrated in the charging box 10, and when the headsets (headset a and headset B) are not powered, the charging box 10 can automatically start charging the headsets by placing the headsets into the charging box 10. Therefore, the problem that the left earphone and the right earphone (namely the earphone A and the earphone B) of the TWS earphone based on human body communication are not physically connected, the size of the earphone is small, and charging cannot be achieved through a USB interface mode can be solved. The detailed structure of the charging box 10 will not be described in detail in this application.

Further, when the TWS headset for human body communication is in a charged state inside the charging box 10, the headset may also be automatically disconnected from other devices such as a cellular phone.

The application also provides a communication method based on the TWS earphone based on human body communication.

For example, referring to fig. 5, in one implementation of the communication method of the TWS headset based on human body communication provided by the present application, the headset a and the headset B establish an HBC signal channel through a user body, so that communication between the headset a and the headset B can be performed through the HBC signal channel. Further, earphone a may establish a connection with handset 20 as a primary earphone and earphone B as a secondary earphone.

The earphone a and the earphone B shown in fig. 5 may be any one of the earphones shown in fig. 2A to 2E, and the HBC electrodes on the earphone a and the earphone B are respectively in contact with the skin of the user's ear when the earphone a and the earphone B are in a state of being worn by the user, and the earphone a and the earphone B may establish the HBC signal path through the body of the user in a current coupling HBC manner as shown in fig. 6A, and the body of the user and the HBC electrode a2 in the earphone a and the HBC electrode B2 in the earphone B form a body coupling unit to form the HBC signal path.

The earphones a and B shown in fig. 5 may be any one of the earphones shown in fig. 3A to 3E, the HBC electrodes on the earphones a and B are respectively in contact with or not in contact with the skin of the user's ears when the earphones a and B are in a state of being worn by the user, and the earphones a and B may establish the HBC signal channel by capacitively coupling the HBC through the body of the user as shown in fig. 6B, the body of the user and the HBC electrode a2 in the earphones a, the HBC electrode B2 in the earphones B, and the surrounding environment form a body coupling unit to form the HBC signal channel.

In an implementation manner of the communication method of the TWS headset based on human body communication provided by the present application, please refer to fig. 7A for example, a process of establishing a communication connection between the headset a and the headset B includes:

s101, if the proximity sensor a4 of the headset a detects that the headset a is in the user wearing state and the proximity sensor B4 of the headset B detects that the headset B is in the user wearing state, the headset a sends an initial connection signal to the headset B through the HBC signal channel with a preset power P1.

For example, in a usage scenario of the TWS headset based on human body communication, a user first takes out the headset a from the charging box 10 shown in fig. 4 to wear, at this time, the mobile phone 20 detects the headset a and establishes a bluetooth connection with the headset a, and the headset a serves as a main headset. Further, after the user finishes wearing the headset a, the user takes out the headset B to wear the headset. When the headset a and the headset B are taken out of the charging box 10 and worn by the user, the proximity sensor a4 in the headset a and the proximity sensor B4 in the headset B detect the wearing state of the user, respectively.

Further, the initial connection signal includes connection request information and a value of the preset power P1. Illustratively, the value of the preset power P1 may range from-40 dBm to 8dBm, such as-40 dBm, -25dBm, -10.5dBm, 0dBm, 1dBm, 5.5dBm, 8dBm, etc. Of course, the value of the preset power P1 may be other values, which may be selected as needed.

Further, since there will be a certain power loss in the signal transmitted from the headset a to the headset B through the HBC signal channel, the preset power P1 should be a value that ensures that the headset B can receive the signal transmitted from the headset a. Illustratively, if there is no power loss, for example, the frequency at which the signal transmitted by headset a can be received by headset B is P01, the preset power P1 should be a value greater than P01. For example, P1 is N larger than P01, i.e., P1-P01 are N, and N may be 10 to 60dB, for example, 10dB, 20dB, 35dB, 40.5dB, 60dB, or the like. Of course the value of N may be other values, which may be selected as desired.

Further, if the headset a does not receive the response signal corresponding to the initial connection signal sent by the headset B within a period of time, it may be considered that the value of the preset power P1 is too small, so that the headset B does not receive the initial connection signal sent by the headset a. Headset a may adjust the preset power P1 to P11, P11 to a value greater than P1, and then headset a sends an initial connection signal to headset B through the HBC signal channel at the preset power P11 until headset a receives the reply signal sent by headset B.

The response signal may be an Acknowledgement Character (ACK), but may be other types of information.

S102, the headset B receives the initial connection signal, obtains the transmission power of the headset a for transmitting the initial connection signal according to the initial connection signal, where the transmission power is the preset power P1, obtains (measures) the received power P2 of the initial connection signal received by the headset B, and calculates the power attenuation coefficient α as P2/P1 according to the transmission power P1 and the received power P2.

S103, the headset B adjusts its own transmission power to P3, and sends a connection acceptance response to the headset a through the HBC signal channel with the transmission power P3, where the connection acceptance response includes connection acceptance information for accepting connection and information (instruction/parameter) of the power attenuation coefficient α 1.

It should be noted that the adjusting of the own transmission power by the headset B may be adjusting the transmission power of the headset B according to the power attenuation coefficient α 1 to a power that allows the signal sent by the headset B to be received by the headset a.

For example, since the power attenuation coefficient of the signal transmitted from the headset B to the headset a can also be regarded as the power attenuation coefficient α 1 (or similar to the power attenuation coefficient α 1), the frequency at which the signal transmitted from the headset B can be received by the headset a is P02, and the adjusted transmission power P3 of the headset B should be equal to or greater than P02/α 1.

S104, the earphone A receives the power attenuation coefficient alpha 1, adjusts the own transmitting power to be P4, and the P4 can be P01/alpha 1, and establishes connection with the earphone B.

Further, in the communication method based on the TWS headset for human body communication provided by the present application, after the headset a and the headset B establish a connection, the method further includes:

and S105, the earphone A and the earphone B transmit communication signals with the respectively adjusted transmission power to carry out communication.

Illustratively, headset a may receive a signal transmitted by the handset 20 through the bluetooth communication module a1 and forward the signal to headset B through the HBC signal path at transmit power P4. And headset a may receive signals transmitted by headset B at transmit power P3, and headset a forwards signals transmitted by headset B to handset 20 through bluetooth communication module a 1.

In the communication method of the TWS headset based on human body communication provided in the present application, it can be known from fig. 1 that the communication power of the communication system between the two headsets is related to the distance between the headset and the ear skin of the user, i.e. the communication power of the communication system between the two headsets is related to the headset wearing state and the user movement state, so it is necessary to dynamically monitor the power attenuation parameter S of the signal channel₂₁To determine the communication quality and dynamically adjust the transmitting power of the two earphones according to the communication quality to obtain the best transmission powerCommunication quality and power consumption are improved.

Therefore, for example, referring to fig. 7B, in another implementation of the communication method based on the TWS headset for human body communication provided by the present application, during the process of communicating between the headset a and the headset B, after step S104, the method further includes:

s106, the headset a transmits a communication signal (e.g., audio data) to the headset B, and attaches the transmission power of the headset a when transmitting the communication signal this time to the communication signal (e.g., each frame signal).

S107, the earphone B receives the communication signal, obtains the transmitting power of the earphone A according to the communication signal, obtains (measures) the receiving power of the communication signal received by the earphone B, and calculates the power attenuation coefficient alpha 2 according to the transmitting power and the receiving power.

And S108, the earphone B adjusts the transmission power of the earphone B, and sends a communication signal to the earphone A through the HBC signal channel according to the adjusted transmission power, and the earphone B attaches Ack information and a power attenuation coefficient alpha 2 to the communication signal.

And S109, the earphone A receives the power attenuation coefficient alpha 2 and adjusts the transmitting power of the earphone A.

Then, S106 is further performed to transmit the communication signal at the adjusted transmission power.

Further, in the process of communication between the headset a and the headset B, the headset a and the headset B repeat the above steps S106 to S109, that is, in the whole communication process, the aforementioned transmission power and power attenuation coefficient are attached to each communication signal, so that the transmission power of the headset a and the transmission power of the headset B can be adjusted in real time, a more reliable and stable communication connection can be realized, and the communication quality can be improved.

Further, referring to fig. 7C, in another implementation of the communication method based on the TWS headset for human body communication according to the present application, in the process of communicating between the headset a and the headset B, after step S105, the method further includes:

s1051, whether the wearing state of the user of the headphone a or the headphone B has changed, if so, S1052 is executed, and if not, S105 is executed.

The proximity sensor a1 of the headphone a detects whether the wearing state of the user of the headphone a has changed, and the proximity sensor B1 of the headphone B detects whether the wearing state of the user of the headphone B has changed.

In the application, whether the wearing state of the user of the earphone a or the earphone B changes or not is detected in real time, or detected according to a preset detection period, wherein the preset detection period can be 30 s-120 s, and the preset detection period can be specifically set as required.

S1052, detecting whether the earphone a and the earphone B are still connected, if so, executing the above S106 by the earphone a and the earphone B, if not, executing the above S101 by the earphone a and the earphone B, that is, if the earphone a and the earphone B are in the wearing state of the user and keep connected, adjusting the respective transmission power between the earphone a and the earphone B, and if the earphone a and/or the earphone B are in the wearing state of the user and do not keep connected, further performing the operation of establishing the connection between the earphone a and the earphone B.

Further, if the headset a and/or the headset B is in a state where the user is not wearing, the headset a does not perform any operation, or is in a standby state, and is automatically turned off after a certain period of time (e.g., 3 s).

Further, in this application, for S101, if the proximity sensor a4 of the headset a detects that the headset a is in the user wearing state and the proximity sensor B4 of the headset B detects that the headset B is in the user wearing state, the headset a may send the initial connection signal to the headset B through the HBC signal channel at the preset power P1. Or, if the proximity sensor a4 of the headset a detects that the headset a is in the user wearing state, the headset a sends an initial connection signal to the headset B through the HBC signal channel at the preset power P1, which can be selected as required.

Of course, in S1051, it may be configured such that the proximity sensor a1 of the headset a detects whether the wearing state of the headset a by the user has changed, and if it is detected that the wearing state of the headset a by the user has changed, S1052 is executed, and if it has not changed, S105 is executed. The proximity sensor B1 of the headphone B may detect whether the wearing state of the headphone B by the user has changed, and if it is detected that the wearing state of the headphone B by the user has changed, S1052 may be executed, and if it is not detected that the wearing state of the headphone B by the user has changed, S105 may be executed. Which may be specifically selected as desired.

In another implementation manner of the present application, S1051 may also be that the motion sensor a3 of the headset a detects whether the wearing state of the user of the headset a changes, and if the change is detected, S1052 is executed, and if the change does not occur, S105 is executed. Alternatively, the motion sensor B3 of the headphone B detects whether the wearing state of the user of the headphone B has changed, and if the change is detected, S1052 is executed, and if the change is not detected, S105 is executed. Or simultaneously detecting whether the wearing state of the user of the headset a is changed by the motion sensor a3 of the headset a and whether the wearing state of the user of the headset B is changed by the motion sensor B3 of the headset B, if the change is detected, executing S1052, and if the change is not detected, executing S105.

Further, in another implementation manner of the present application, S1051 may also be that the proximity sensor a1 and the motion sensor A3 of the headset a detect whether the wearing state of the user of the headset a changes, and if the change is detected, perform S1052, and if the change does not occur, perform S105. Or the proximity sensor B1 and the motion sensor B3 of the headset B detect whether the wearing state of the user of the headset B has changed, and if the change is detected, S1052 is executed, and if the change is not detected, S105 is executed. Or the proximity sensor a1 and the motion sensor A3 of the headset a detect whether the wearing state of the user of the headset a changes, and the proximity sensor B1 and the motion sensor B3 of the headset B detect whether the wearing state of the user of the headset B changes, if the changes are detected, S1052 is executed, and if the changes are not detected, S105 is executed.

Whether the wearing state of the user of the earphone changes or not is detected through the proximity sensor and the motion sensor in the application, whether the wearing state of the user of the earphone changes or not can be detected through common detection modes of the current proximity sensor and the motion sensor, and other detection modes can be adopted, and the detection modes can be selected according to needs.

For example, the application scenario of the TWS headset based on human body communication provided by the present application may be a scenario of playing music, where in the scenario of playing music, the headset a receives an audio signal sent by the cell phone 20, and forwards the audio signal to the headset B through an HBC signal channel established by the HBC electrode and the body of the user, so as to implement synchronous playing of the audio signal by the headset a and the headset B. Of course, the application scenario may be other scenarios such as a call scenario.

Furthermore, according to the communication method of the TWS earphone based on human body communication, the two earphones are communicated based on the HBC, and the problem that in the communication mode that a mobile phone in the prior art respectively transmits Bluetooth signals to the two earphones which are connected in a double-ear synchronous double-connection mode, due to the fact that the compatibility of a mobile phone system platform is poor, the phenomenon that the double-ear signals are asynchronous is caused can be avoided, so that the signal synchronization rate is improved, and user experience is improved.

Further, compared with a method of forwarding the signal to the main earphone through bluetooth in the prior art, the TWS earphone based on human body communication provided by the application has the advantages that the mobile phone transmits the signal to the main earphone through 2.4GHz bluetooth, and then the main earphone forwards the signal to the auxiliary ear through 2.4GHz bluetooth; the 2.4G Bluetooth signal that can avoid this kind of mode to exist is relatively poor in diffraction nature, receives human separation easily to receive the interference of wiFi and other Bluetooth signal easily, so can appear about the ear have the problem/the disadvantage of delay, improved the signal synchronization rate, with improvement user's experience.

In addition, compared with a Low frequency Bluetooth forwarding Technology (LBRT) in the prior art, the TWS headset communication method based on human body communication provided by the application is synchronized to the secondary headset by transmitting a Bluetooth signal to the primary headset and then by using a magnetic induction forwarding (10-15MHz frequency Band) Technology, and the problem that the volume of the headset is increased because a Low frequency antenna needs to be additionally added to the headset is solved.

Referring to fig. 8A, the HBC technology provided by the present application may also be applied in other scenarios of Dynamic body communication connection (Dynamic HBC Link).

For example, an HBC electrode may be provided in a Smart watch (smartwatches) as shown in a) of fig. 8A, and an HBC connection may be established between the respective Smart Watches of the users by the user's hand when the two users are shaking hands.

For example, an HBC electrode may be provided in a Wearable device (Wearable) such as a watch shown in b) of fig. 8A, and an HBC electrode may be provided in a Unique Biomarker (Unique Biomarker) detection device, and when a user's hand comes into contact with the Unique Biomarker detection device, the Wearable device and the Unique Biomarker detection device establish an HBC connection with the user's hand when the user's hand comes into contact with the Unique Biomarker detection device during an operation such as fingerprint unlocking.

Exemplarily, as shown in c) of fig. 8A, the HBC signal is generated in a human Body, a Wireless Body Area Network (WBAN) is formed in the human Body, and an Attacker (Attacker) may detect the WBAN but may not detect the HBC.

For example, please refer to fig. 8B, fig. 8B shows various application scenarios (variaus capabilities of Body Area Networks), i.e. application scenarios of HBCs, of some Body Area Networks. For example, secure (Security) verification in electronic Payments (electronic bill payment) scenarios (authentication and pay by touch); such as physical condition monitoring (monitor conditions) in Medical & Healthcare services; automatic Seat adjustment (self Automatic adjustment) when a user sits down in Driving Assistance (Driving Assistance), and the like, and Automatic operation (Automatic operation) in Office Security (Office Security), such as Automatic printing by a Printer upon user contact (Printer started), or Security (Security) verification, such as door verification opening, door opening and locking (Automatic and door locking), and the like.

Referring to fig. 9, fig. 9 is a schematic structural diagram of an electronic device 900 provided according to an embodiment of the present application. The electronic device 900 may include one or more processors 901 coupled to a controller hub 904. For at least one embodiment, controller hub 904 communicates with processor 901 via a multi-drop bus such as a front-side bus (FSB), a point-to-point interface such as a quick channel interconnect (QPI), or similar connection. Processor 901 executes instructions that control general types of data processing operations. In one embodiment, the controller hub 904 includes, but is not limited to, a Graphics Memory Controller Hub (GMCH) (not shown) and an input/output hub (IOH) (which may be on separate chips) (not shown), where the GMCH includes memory and graphics controllers and is coupled to the IOH.

The electronic device 900 may also include a coprocessor 906 and memory 902 coupled to the controller hub 904. Alternatively, one or both of the memory 902 and GMCH may be integrated within the processor 901 (as described herein), with the memory 902 and coprocessor 906 coupled directly to the processor 901 and to the controller hub 904, with the controller hub 904 and IOH in a single chip.

The memory 902 may be, for example, Dynamic Random Access Memory (DRAM), Phase Change Memory (PCM), or a combination of the two.

In one embodiment, coprocessor 906 is a special-purpose processor, such as, for example, a high-throughput MIC processor, a network or communication processor, compression engine, graphics processor, GPGPU, embedded processor, or the like. The optional nature of coprocessor 906 is represented in FIG. 9 by dashed lines.

In one embodiment, electronic device 900 may further include a Network Interface (NIC) 903. The network interface 903 may include a transceiver to provide a radio interface for the electronic device 900 to communicate with any other suitable device (e.g., front end module, antenna, etc.). In various embodiments, the network interface 903 may be integrated with other components of the electronic device 900. The network interface 903 may implement the functions of the communication unit in the above-described embodiments.

The electronic device 900 may further include input/output (I/O) devices 905. Input/output (I/O) devices 905 may include: a user interface designed to enable a user to interact with the electronic device 900; the design of the peripheral component interface enables peripheral components to also interact with the electronic device 900; and/or sensors are designed to determine environmental conditions and/or location information associated with electronic device 900.

It is noted that fig. 9 is merely exemplary. That is, although fig. 9 shows that the electronic apparatus 900 includes a plurality of devices, such as a processor 901, a controller hub 904 and a memory 902, in practical applications, an apparatus using the methods of the present application may include only a part of the devices of the electronic apparatus 900, for example, may include only the processor 901 and the NIC 903. The nature of the alternative device in fig. 9 is shown in dashed lines.

One or more tangible, non-transitory computer-readable media for storing data and/or instructions may be included in the memory of the electronic device 900. A computer-readable storage medium has stored therein instructions, and in particular, temporary and permanent copies of the instructions.

In this application, the electronic device 900 may specifically be a wireless headset, and the instructions stored in the memory of the electronic device may include: instructions that when executed by at least one unit in a processor cause the wireless headset to implement the communication method of the wireless headset based on human body communication as mentioned above.

Referring to fig. 10, fig. 10 is a schematic structural diagram of an SoC (System on Chip) 1000 according to an embodiment of the present disclosure. In fig. 10, like parts have the same reference numerals. In addition, the dashed box is an optional feature of the more advanced SoC 1000. The SoC1000 may be used in any electronic device according to the present application, such as a wireless headset according to any embodiment of the present application. According to different devices and different instructions stored in the devices, corresponding functions can be realized.

In fig. 10, the SoC1000 includes: an interconnect unit 1002 coupled to the processor 1001; a system agent unit 1006; a bus controller unit 1005; an integrated memory controller unit 1003; a set or one or more coprocessors 1007 which may include integrated graphics logic, an image processor, an audio processor, and a video processor; an SRAM (static random access memory) unit 1008; a DMA (direct memory access) unit 1004. In one embodiment, the coprocessor 1007 comprises a special-purpose processor, such as, for example, a network or communication processor, compression engine, GPGPU, a high-throughput MIC processor, embedded processor, or the like.

Included in SRAM cell 1008 may be one or more computer-readable media for storing data and/or instructions. A computer-readable storage medium may have stored therein instructions, in particular, temporary and permanent copies of the instructions. The instructions may include: instructions that when executed by at least one unit in a processor cause the wireless headset to implement the communication method of the wireless headset for human-body communication as described above.

Embodiments of the mechanisms disclosed herein may be implemented in software, hardware, firmware, or a combination of these implementations. Embodiments of the application may be implemented as computer programs or program code executing on programmable systems including at least one processor, memory (or storage systems including volatile and non-volatile memory and/or storage units).

Program code may be applied to the input instructions to perform the functions described in the text and to generate output information. The output information may be applied to one or more output devices in a known manner. It is appreciated that in embodiments of the present application, the processing system may be a microprocessor, a Digital Signal Processor (DSP), a microcontroller, an Application Specific Integrated Circuit (ASIC), the like, and/or any combination thereof. According to another aspect, the processor may be a single core processor, a multi-core processor, and/or the like, and/or any combination thereof.

The program code may be implemented in a high level procedural or object oriented programming language to communicate with a processor. The program code can also be implemented in assembly or machine language, if desired. Indeed, the mechanisms described in this text are not limited in scope to any particular programming language. In any case, the language may be a compiled or interpreted language.

In some cases, the disclosed embodiments may be implemented in hardware, firmware, software, or any combination thereof. The disclosed embodiments may be implemented as one or more transitory or non-transitory and readable (e.g., computer-readable) storage media bearing or having stored thereon instructions that are readable and executable by one or more processors. For example, the instructions may be distributed via a network or a pneumatically readable computer medium. Thus, a machine-readable medium may include any mechanism for storing or transmitting information in a form readable by a machine (e.g., a computer), including, but not limited to, floppy diskettes, optical disks, read-only memories (CD-ROMs), magneto-optical disks, read-only memories (ROMs), Random Access Memories (RAMs), erasable programmable read-only memories (EPROMs), electrically erasable programmable read-only memories (EEPROMs), magnetic or optical cards, flash cards, or a tangible machine-readable memory for transmitting information (e.g., carrier waves, infrared signals, digital signals, etc.) using the internet in an electrical, optical, acoustical or other form of propagated signal. Thus, a machine-readable medium includes any type of machine-readable medium suitable for storing or transmitting electronic instructions or information in a form readable by a machine.

One or more aspects of at least one embodiment may be implemented by representative instructions stored on a computer-readable storage medium which represent various logic within a processor which, when read by a machine, cause the mechanism to operate as logic to perform the techniques described herein. These representations, known as "IP cores" may be stored on a tangible computer-readable storage medium and provided to a plurality of customers or manufacturing facilities for implementation to be loaded into the manufacturing machines that actually make the logic or processor.

In some cases, an instruction converter may be used to transfer instructions from a source instruction set to a target instruction set. For example, the instruction converter may transform (e.g., using a static binary transform, a dynamic binary transform including dynamic compilation), morph, emulate, or otherwise convert the instruction into one or more other instructions for processing by the core. The instruction converter may be implemented in software, hardware, firmware, or other combinations. The instruction converter may be on the processor, off-processor, or partially on and partially off-processor.

It is noted that, as used herein, the term module can refer to either an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group) and/or memory that executes one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality, or as part of a combination of such hardware components. That is, each module in each device embodiment of the present application is a logical module, and physically, one logical module may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, the device embodiments described above do not introduce modules that are not germane to solving the technical problems presented in the present application, which does not indicate that the device embodiments described above do not include other modules.

It should be noted that the communication module in this application may specifically include a transmitter and a receiver, or a transceiver, for providing a wireless communication function for the located device, so that the located device communicates with other devices. For example, the terminal device sends screen projection data, and the playing device receives the screen projection data.

It should be noted that the terms "first," "second," and the like are used merely to distinguish one description from another, and are not intended to indicate or imply relative importance.

It should be noted that in the accompanying drawings, some structural or methodical features may be shown in a particular arrangement and/or order. However, it is to be understood that such specific arrangement and/or ordering may not be required. Rather, in some embodiments, the features may be arranged in a manner and/or order different from that shown in the illustrative figures. In addition, the inclusion of a structural or methodical feature in a particular figure is not meant to imply that such feature is required in all embodiments, and in some embodiments, may not be included or may be combined with other features.

While the present application has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the present application, and the present application is not intended to be limited to these details. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the present application.

Claims

1. A wireless earphone based on human body communication is characterized by comprising two earphone bodies, wherein each earphone body comprises an earphone shell and a human body communication electrode, and the human body communication electrode is arranged in the earphone shell; the human body communication electrodes of the two earphone bodies are used for forming a human body communication signal channel for communication signal transmission together with the body of a user when the two earphone bodies are both in a wearing state of the user.

2. The human-body-communication-based wireless headset according to claim 1, wherein each headset body comprises at least one human-body communication electrode, and the human-body communication electrode is at least partially exposed on an outer surface of the headset housing and is used for contacting with a user body when the headset body is worn by the user to establish the human-body communication signal channel in a current coupling manner.

3. The human-body-communication-based wireless headset according to claim 2, wherein the part of the human-body-communication electrode exposed to the outer surface of the headset housing is located on a side of the headset housing facing an ear canal of a user when the headset body is in a wearing state of the user; and/or the human body communication electrode is exposed out of the part of the outer surface of the earphone shell is positioned on one side, back to the ear canal of the user, of the earphone shell when the earphone body is in a wearing state of the user.

4. The human body communication-based wireless headset according to claim 2 or 3, wherein each headset body includes two human body communication electrodes.

5. The human-body-communication-based wireless headset according to claim 1, wherein each headset body includes at least one human-body-communication electrode;

the human body communication electrode is not exposed out of the outer surface of the earphone shell, and the distance between the human body communication electrode and the body of a user is a preset distance when the earphone body is in a wearing state of the user, so that the human body communication signal channel is formed in a capacitive coupling mode; or

The human body communication electrode is at least partially exposed out of the outer surface of the earphone shell and is used for being in contact with the body of a user when the earphone body is in a wearing state of the user, and a human body communication signal channel is established in a capacitive coupling mode; or

The human body communication electrode is at least partially exposed on the outer surface of the earphone shell, so that the distance between the earphone body and the body of a user is a preset distance when the earphone body is in a wearing state of the user, and the human body communication signal channel is formed in a capacitive coupling mode.

6. The human body communication-based wireless headset according to any one of claims 1 to 5, wherein each headset body further comprises a proximity sensor for detecting whether the headset body is in a user wearing state; and/or

Each headphone body further includes a motion sensor for detecting a change in a motion state of the user.

7. The human body communication-based wireless headset according to any one of claims 1 to 6, wherein at least one headset body further includes a Bluetooth communication module,

the Bluetooth communication module is used for carrying out Bluetooth communication with external terminal equipment so as to receive communication signals sent by the external terminal equipment and/or send communication signals to the external terminal equipment.

8. The human-body-communication-based wireless headset according to any one of claims 1 to 7, wherein each headset body further comprises a control part disposed in the headset housing, and the control part is connected to at least the human-body-communication electrode for performing an operation related to transmission of a communication signal in the human-body-communication signal channel.

9. The human-body-communication-based wireless headset according to any one of claims 1 to 8, wherein the human-body-communication-based wireless headset is a true wireless stereo headset for human-body-communication.

10. The human body communication-based wireless headset according to any one of claims 1 to 9, wherein each headset body further comprises an audio part for capturing audio signals and playing the audio signals.

11. A communication method of a wireless headset based on human body communication, the wireless headset based on human body communication comprising a first headset and a second headset, the method comprising:

the first earphone and the second earphone are both in a wearing state of a user, and a human body communication signal channel is formed among the human body communication electrode of the first earphone, the body of the user and the human body communication electrode of the second earphone;

and the first earphone and the second earphone establish communication connection and transmit communication signals through the human body communication signal channel.

12. The communication method of the wireless headset based on human body communication according to claim 11, wherein the method further comprises:

the first earphone is connected with external terminal equipment;

the first earphone receives a communication signal sent by the external terminal equipment and sends the communication signal to the second earphone through the human body communication signal channel;

and the second earphone executes corresponding operation according to the communication signal.

13. The communication method of the human body communication-based wireless headset of claim 12, wherein the method further comprises: and the first earphone receives the communication signal sent by the second earphone through the human body communication signal channel and sends the communication signal to the external terminal equipment.

14. The communication method of the human body communication-based wireless headset of claim 13, wherein the communication signal includes audio data.

15. The communication method of the human body communication-based wireless headset according to any one of claims 12 to 14, wherein the establishing of the communication connection between the first headset and the second headset includes:

the first earphone sends an initial connection signal to the second earphone with preset power, wherein the initial connection signal comprises information of the preset power;

the second earphone receives the initial connection signal and obtains the received power of the initial connection signal;

the second earphone determines a first power attenuation coefficient according to the received power and the preset power;

the second earphone adjusts the transmitting power of the second earphone according to the first power attenuation coefficient, and the second earphone sends a connection acceptance response to the first earphone, wherein the connection acceptance response comprises connection acceptance information and the first power attenuation coefficient;

and the first earphone receives the connection acceptance response and establishes connection with the second earphone.

16. The communication method of the human body communication-based wireless headset of claim 15, wherein the method further comprises:

the first earphone adjusts the transmitting power of the first earphone according to the first power attenuation coefficient;

the first earpiece and the second earpiece transmit communication signals at respective adjusted powers.

17. The communication method of the human body communication-based wireless headset of claim 16, wherein the method further comprises performing the following operations during the communication of the first headset and the second headset:

the first earphone sends the transmission power information when the first earphone sends the communication signal to the second earphone;

the second earphone determines a second power attenuation coefficient according to the received transmitting power information of the first earphone and the obtained received receiving power of the communication signal;

the second earphone adjusts the own transmitting power according to the second power attenuation coefficient so as to be used for sending communication signals, and sends the second power attenuation coefficient to the first earphone;

and the first earphone receives the second power attenuation coefficient and adjusts the own transmitting power according to the second power attenuation coefficient so as to be used for sending the communication signals.

18. The communication method of the wireless headset based on human body communication according to claim 17, wherein the transmitting power information of the first headset transmitting the communication signal to the second headset comprises:

the first earphone sends the transmission power information each time a communication signal is sent to the second earphone; or

The first earphone sends the transmission power information to the second earphone according to a preset frequency; or

And when the wearing state of the user of the first earphone and/or the second earphone changes, the first earphone sends the transmission power information to the second earphone.

19. The communication method of the wireless headset based on human body communication according to claim 18, wherein if the wearing state of the user of the first headset and/or the second headset changes, the method further comprises:

determining whether the first earpiece and the second earpiece remain connected;

if the connection is kept, the first earphone and the second earphone adjust the respective transmitting power and send communication signals according to the adjusted transmitting power;

and if the connection is not kept, the first earphone and the second earphone establish communication establishment.

20. The communication method of the wireless headset based on human body communication according to claim 18, wherein if the wearing state of the user of the first headset and the second headset is not changed, the method further comprises: and the first earphone and the second earphone transmit communication signals at the current transmitting power of each earphone.

21. A wireless headset device based on human body communication, comprising: a charging case for accommodating the human body communication-based wireless headset according to any one of claims 1 to 10, and the human body communication-based wireless headset.

22. A human body communication-based communication system comprising the human body communication-based wireless headset according to any one of claims 1 to 10, and an external terminal device for establishing a connection with a first headset of the human body communication-based wireless headset;

the external terminal equipment is used for sending a first communication signal to the first earphone and receiving a second communication signal sent by the first earphone;

the first earphone is used for sending the first communication signal to the second earphone through the human body communication signal channel and receiving the second communication signal sent by the second earphone through the human body communication signal channel;

the second earphone is used for sending the second communication signal to the first earphone through the human body communication signal channel and receiving the first communication signal sent by the first earphone through the human body communication signal channel.

23. An electronic device, comprising:

a memory for storing a computer program, the computer program comprising program instructions;

a processor for executing the program instructions to cause the electronic device to perform the communication method of the human body communication-based wireless headset according to any one of claims 11 to 20.

24. A computer-readable storage medium storing a computer program comprising program instructions to be executed by a computer to cause the computer to execute the communication method of the human-body communication-based wireless headset according to any one of claims 11 to 20.