CN210781281U

CN210781281U - Headset, control chip and circuit control system

Info

Publication number: CN210781281U
Application number: CN201922415702.7U
Authority: CN
Inventors: 李瑞涛; 赵平强
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2019-12-29
Filing date: 2019-12-29
Publication date: 2020-06-16
Anticipated expiration: 2029-12-29

Abstract

The application discloses a headset, a control chip and a circuit control system, wherein the headset comprises a first headset module and a second headset module, the first headset module and the second headset module both comprise control chips, the control chip in the first headset module is connected with the control chip in the second headset module through a USB signal line, and the USB signal line comprises a D + line, a D-line, a ground wire and a power wire; first earphone module or control chip in the second earphone module is connected with the terminal, and control chip includes: a data interface for transmitting or receiving signals; the data interface comprises a D + data interface and a D-data interface; the coding unit is connected with the data interface and used for coding the signal to be transmitted; and the decoding unit is connected with the data interface and used for decoding the received signal. The number of signal lines between the two earphone modules is reduced on the premise of realizing the basic functions of the headset, the complexity of product design is reduced, and the assembly performance of the product is improved.

Description

Headset, control chip and circuit control system

Technical Field

The present application relates to the field of audio devices and audio signal transmission technologies, and more particularly, to a headphone, a control chip, and a circuit control system.

Background

In the related art, the signal line between two earphone modules in the headset is relatively complex in design, and if each earphone module comprises two microphones and one speaker, the headset comprises four microphones and two speakers altogether, and the headset can also provide a key function. If each device corresponds to a signal line, at least 8 signal lines are required to be arranged between two earphone modules in the headset including the power line, so that the signal lines are complex to assemble, the size of a head-wearing part of an earphone product is large, and the attractiveness of the appearance design of the earphone is affected.

Therefore, how to reduce the number of signal lines between two earphone modules on the premise of ensuring the basic functions of the headset is a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a headphone, control chip and circuit control system, reduces the signal line quantity between two earphone modules under the basic function's that realizes headphone prerequisite.

In order to achieve the above object, the present application provides a headset, including a first headset module and a second headset module, where the first headset module and the second headset module both include a control chip, the control chip in the first headset module is connected to the control chip in the second headset module through a USB signal line, and the USB signal line includes a D + line, a D-line, a ground line, and a power line;

optionally, a control chip in the first earphone module or the second earphone module is connected to a terminal.

The control chip includes:

a data interface for transmitting or receiving signals; wherein the data interface comprises a D + data interface and a D-data interface;

the coding unit is connected with the data interface and is used for coding a signal to be transmitted;

and the decoding unit is connected with the data interface and used for decoding the received signals.

Optionally, the first earphone module and the second earphone module both include a speaker power amplifier module connected to the control chip, and the speaker power amplifier module includes a power amplifier and a speaker connected to the power amplifier;

the control chip comprises an SPK _ P interface and an SPK _ N interface, and is connected with the power amplifier through the SPK _ P interface and the SPK _ N interface.

Optionally, the first earphone module and the second earphone module both include a microphone connected to the control chip;

the control chip comprises a MIC _ CLK interface and a MIC _ DAT interface, and is connected with the microphone through the MIC _ CLK interface and the MIC _ DAT interface.

Optionally, the microphone includes a first microphone and a second microphone, and the first microphone and the second microphone are connected by a signal line.

Optionally, the first earphone module and/or the second earphone module further include a key connected to the control chip.

Optionally, the first earphone module and/or the second earphone module further include an indicator light connected to the control chip.

In order to achieve the above object, the present application provides a control chip, including:

In order to achieve the above object, the present application provides a circuit control system, which includes a first control chip and a second control chip, where the first control chip and the second control chip are both the control chips as described above;

the first control chip is connected with the second control chip through a USB signal line, and the USB signal line comprises a D + line, a D-line, a ground line and a power line;

the D + data interface in the first control chip is connected with the D + data interface in the second control chip through the D + line, and the D-data interface in the first control chip is connected with the D-data interface in the second control chip through the D-line.

According to the scheme, the headset comprises a first headset module and a second headset module, wherein the first headset module and the second headset module respectively comprise a control chip, the control chip in the first headset module is connected with the control chip in the second headset module through a USB signal line, and the USB signal line comprises a D + line, a D-line, a ground line and a power line; the control chip includes: a data interface for transmitting or receiving signals; wherein the data interface comprises a D + data interface and a D-data interface; the coding unit is connected with the data interface and is used for coding a signal to be transmitted; and the decoding unit is connected with the data interface and used for decoding the received signals.

In this application, connect through the USB signal line between two earphone modules in the headphone, all signals all transmit through the USB signal line, and the USB signal line includes D + line, D-line, ground wire and power cord, has reduced the signal line quantity between two earphone modules. In the signal transmission process, for signals to be transmitted with different functions, a sender encodes the signals based on the signal types and corresponding operations, a USB signal line transmits encoded signals, and a receiver decodes the encoded signals to realize the corresponding functions of the different signals to be transmitted. Therefore, the headset provided by the application reduces the number of signal lines between the two headset modules on the premise of realizing the basic functions of the headset, effectively reduces the complexity of product design, and improves the assembly performance of products. The application also provides a control chip and a circuit control system, and the technical effects can be achieved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a structural diagram of a headset according to an embodiment of the present disclosure;

fig. 2 is a block diagram of another headphone according to an embodiment of the present disclosure;

fig. 3 is a block diagram of another headset according to an embodiment of the present disclosure;

FIG. 4 is a block diagram of a headset in an embodiment of an application provided in the present application;

fig. 5 is a structural diagram of a control chip according to an embodiment of the present disclosure;

fig. 6 is a block diagram of a circuit control system according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application discloses a headset reduces the number of signal lines between two headset modules on the premise of realizing the basic functions of the headset.

Referring to fig. 1, a structure diagram of a headphone provided in an embodiment of the present application includes, as shown in fig. 1, a first headphone module 100 and a second headphone module 200, where the first headphone module 100 and the second headphone module 200 both include a control chip, a control chip 11 in the first headphone module 100 is connected to a control chip 21 in the second headphone module 200 through a USB signal line 300, and the USB signal line 300 includes a D + line, a D-line, a ground line, and a power line;

in this embodiment, the headset includes a first headset module 100 and a second headset module 200, the control chips in the first headset module 100 and the second headset module 200 are connected through a USB signal line 300, and the USB signal line 300 includes a D + line, a D-line, a ground line, and a power line. The D + line and the D-line are data lines for transmitting signals between the first earphone module 100 and the second earphone module 200, and the power line is used for connecting power chips of the first earphone module 100 and the second earphone module 200.

The control chip includes:

It should be noted that the process of transmitting the target signal to the second headphone module 200 by the first headphone module 100 is as follows: the encoding unit in the control chip 11 encodes the target signal based on the corresponding target operation and signal type of the target signal to obtain an encoded signal, transmits the encoded signal to the control chip 21 in the second earphone module 200 through the USB signal line 300, and the decoding unit in the control chip 21 decodes the received encoded signal and executes the target operation.

It is understood that the first earphone module 100 in the transmission process may be a master earphone or a slave earphone in a headset, and is not limited in particular. The control chip in the master earphone is connected to the terminal, that is, the control chip in the first earphone module 100 or the second earphone module 200 is connected to the terminal, that is, the transmission process may be a process of transmitting a signal in the master earphone to the slave earphone, or a process of transmitting a signal in the slave earphone to the master earphone. The target signal in the transmission process may include an audio signal and a control signal for a device. The audio signal can comprise an audio signal to be output acquired from the terminal and an audio signal collected by a microphone, and the control signal can comprise a trigger signal of a key and a control signal of an LED.

For the specific coding mode of the coding unit, the technology in the field can be flexibly set according to the actual situation. For example, a flag bit may be set in the header of the encoded signal, with different values of the flag bit representing different target signals. For example, if the target signal is an audio signal acquired from a terminal, the flag bit is set to 001, if the target signal is an audio signal acquired by a microphone, the flag bit is set to 002, if the target signal is a trigger signal of a key, the flag bit is set to 003, and if the target signal is a control signal for an LED, the flag bit is set to 004.

Correspondingly, for the second earphone module 200, if the flag bit obtained after the decoding operation is 001, it indicates that the target signal is the audio signal obtained from the terminal, and the audio signal is output through the speaker. And if the flag bit obtained after the decoding operation is 002, indicating that the target signal is the audio signal collected by the microphone, and returning the audio signal to the terminal. If the flag bit obtained after the decoding operation is 003, it indicates that the target signal is a trigger signal of the key, and the trigger signal is forwarded to the terminal, so as to implement operations corresponding to the trigger signal, such as playing audio, pausing audio, and the like. And if the flag bit obtained after the decoding operation is 004, the target signal is a control signal for the LED, and the LED is controlled based on the control signal.

On the basis of this embodiment, each of the first earphone module 100 and the second earphone module 200 includes a speaker power amplifier module connected to the control chip, and the speaker power amplifier module includes a power amplifier and a speaker connected to the power amplifier; the control chip comprises an SPK _ P interface and an SPK _ N interface, and is connected with the power amplifier through the SPK _ P interface and the SPK _ N interface. In specific implementation, the main earphone is connected with the terminal, and the audio signal obtained from the terminal can be an audio signal corresponding to music to be played or an audio signal in a conversation process. The master earphone outputs the audio signal through a loudspeaker in the master earphone through a power amplifier, the coding unit is used for coding the audio signal and transmitting the audio signal to the slave earphone through a USB signal line, the slave earphone decodes the received signal through the decoding unit to obtain the audio signal, and the audio signal is output through the loudspeaker in the slave earphone through the power amplifier, so that the functions of music playing, conversation and the like are realized.

On the basis of this embodiment, the first earphone module 100 and the second earphone module 200 both include a microphone connected to the control chip; the control chip comprises a MIC _ CLK interface and a MIC _ DAT interface, and is connected with the microphone through the MIC _ CLK interface and the MIC _ DAT interface. The number of microphones is not limited, and preferably, two microphones may be included, that is, the microphones include a first microphone and a second microphone, and the first microphone and the second microphone are connected by a signal line. In specific implementation, a microphone in the earphone collects an audio signal, the audio signal is encoded by using an encoding unit and is transmitted to the main earphone through a USB signal line, a decoding unit of the main earphone decodes the received signal to obtain the audio signal, the audio signal collected by the microphone of the main earphone is compared with the audio signal obtained from the auxiliary earphone to synthesize a target audio signal, and the main earphone returns the target audio signal to the terminal to realize a conversation or recording function.

In the embodiment of the application, two earphone modules in the headset are connected through the USB signal line, all signals are transmitted through the USB signal line, and the USB signal line comprises a D + line, a D-line, a ground line and a power line, so that the number of the signal lines between the two earphone modules is reduced. In the signal transmission process, for signals to be transmitted with different functions, a sender encodes the signals based on the signal types and corresponding operations, a USB signal line transmits encoded signals, and a receiver decodes the encoded signals to realize the corresponding functions of the different signals to be transmitted. Therefore, the headset provided by the embodiment of the application reduces the number of signal lines between the two headset modules on the premise of realizing the basic functions of the headset, effectively reduces the complexity of product design, and improves the assembly performance of products.

On the basis of the above embodiment, as a preferred implementation manner, as shown in fig. 2, the first earphone module and/or the second earphone module is provided with a key 12, and the key 12 is connected to the control chip, that is, the key may be provided on the first earphone module or the second earphone module, or both the first earphone module and the second earphone module. In a specific implementation, a key may be provided in the slave earphone, and a user triggers the key to generate a trigger signal as a target signal to be transmitted. It will be appreciated that different user operations of the keys may generate different trigger signals to perform different functions. For example, the function of playing, pausing or hanging up an audio can be realized by one press, the function of playing the next audio can be realized by two presses, and the function of playing the previous audio can be realized by three presses. The slave earphone transmits the coded signal corresponding to the trigger signal to the master earphone through a USB signal line, and the master earphone forwards the trigger signal obtained by decoding to the terminal so as to realize the function corresponding to the trigger signal.

On the basis of the above embodiment, as a preferred implementation manner, as shown in fig. 3, the first earphone module and/or the second earphone module is provided with an indicator lamp 13, and the indicator lamp 13 is connected to the control chip, that is, a set of indicator lamps may be provided on the first earphone module or the second earphone module, or a set of indicator lamps may be provided on both the first earphone module and the second earphone module. In a specific implementation, an indicator light may be provided in the slave earphone for indicating the status of the headset. The indicator lamp may include a target indicator lamp for displaying an on/off state of the headset, and may further include a plurality of power indicator lamps for indicating a remaining power of the headset, which is not particularly limited herein. The main earphone determines the target display state of the indicator lamp based on the state of the headset, for example, the target indicator lamp is on in the on state, the target indicator lamp is off in the off state, and when the residual electric quantity is 80%, 4 electric quantity indicator lamps are on and 1 electric quantity indicator lamp is off. The master earpiece generates a target signal based on the target display state, which target signal here may be understood as a control signal for controlling the indicator light. The master earphone sends the coded signal corresponding to the control signal of the indicator light to the slave earphone through the USB signal line to decode the coded signal and controls the indicator light according to the decoding result.

An embodiment of the present application is described below, in particular, the left and right headphone modules in the headphone are connected by USB signal lines, and the USB signal lines include D + and D-lines for transmitting signals of the left and right ears, and a power line (power) and a ground line (GND) for connecting power supplies in the left and right headphone modules.

As shown in fig. 4, the right ear is the master ear and the left ear is the slave ear. The right ear earphone module comprises a Bluetooth IC (Integrated Circuit chip) chip, namely a main control unit, a right ear microphone module and a right ear loudspeaker module, and the left ear earphone module comprises an MCU, namely an auxiliary control unit, a left ear microphone module, a left ear loudspeaker module, a key and an LED. The left ear microphone module and the right ear microphone module respectively comprise two microphones, and the left ear speaker module and the right ear speaker module respectively comprise a power amplifier and a speaker.

Bluetooth IC is whole headphone's master control unit, is responsible for transmission and the communication with Bluetooth equipment's bluetooth, and when Bluetooth headphone broadcast music, Bluetooth IC accepted Bluetooth equipment's audio signal, and Bluetooth IC directly conveys data signal to AP power amplifier through the SPKR _ P and the SPKR _ N of bluetooth, and then uses the speaker to carry out the broadcast of audio frequency. Simultaneously, the Bluetooth IC encodes audio signals in real time, the D + D-signal on the Bluetooth IC is transmitted to the D + D-of the MCU secondary control unit of the left ear, the MCU control unit of the left ear receives the signals sent by the Bluetooth IC, the MCU decodes the signals, the decoded audio signals are transmitted to the AP power amplifier of the left ear through the SPKL _ P and the SPKL _ N of the left ear, and then the left loudspeaker is used for playing the audio signals.

When the Bluetooth headset makes a call, 2 mics of the left ear collect the human voice, the MCU encodes the sound signal collected by the mic of the left ear, the mic signal is transmitted to the Bluetooth IC of the right ear through D + D-of the MCU, the Bluetooth IC decodes the mic data, the mic signal is compared and synthesized with the sound signal collected by the 2 mics of the right ear, and then the mic signal is transmitted to the Bluetooth equipment through the Bluetooth IC, so that the function of making a call is realized.

The button and LED that design in left ear department functional module such as, when the user used the button function, the button signal was encoded through MCU, transmitted the signal for bluetooth IC through D + D-, and bluetooth IC decodes the button signal, and then realizes functions such as music pause, broadcast, the song of last song, next song, hang up the phone.

If the Bluetooth IC needs to use the LED to display some information, the function can be directly coded and transmitted to the MCU through D + D-, and the MCU decodes signals so as to control the display function of the LED lamp. A

The embodiment of the application provides a control chip, it is specific:

referring to fig. 5, a structure diagram of a control chip provided in the embodiment of the present application is shown in fig. 5, and includes:

a data interface 51 for transmitting or receiving signals; wherein the data interface comprises a D + data interface and a D-data interface;

the coding unit 52 is connected with the data interface 51 and used for coding a signal to be transmitted;

a decoding unit 53 connected to the data interface 51 for decoding the received signal.

The embodiment of the application provides a circuit control system, which specifically comprises:

referring to fig. 6, a structure diagram of a circuit control system provided in an embodiment of the present application is shown in fig. 6, and includes a first control chip 61 and a second control chip 62, where the first control chip 61 and the second control chip 62 are both control chips provided in the above embodiments;

the first control chip 61 is connected with the second control chip 62 through a USB signal line, and the USB signal line comprises a D + line, a D-line, a ground line and a power line;

the D + data interface 611 in the first control chip 61 is connected to the D + data interface 621 in the second control chip 62 via the D + line, and the D-data interface 612 in the first control chip 61 is connected to the D-data interface 622 in the second control chip 62 via the D-line.

In the embodiment of the application, the two control chips are connected through the USB signal line, all signals are transmitted through the USB signal line, and the USB signal line comprises a D + line, a D-line, a ground line and a power line, so that the number of the signal lines between the two control chips is reduced. In the signal transmission process, for signals to be transmitted with different functions, a sender encodes the signals based on the signal types and corresponding operations, a USB signal line transmits encoded signals, and a receiver decodes the encoded signals to realize the corresponding functions of the different signals to be transmitted. Therefore, the circuit control system provided by the embodiment of the application reduces the number of signal lines between the two control chips on the premise of realizing the basic functions of the circuit control system, effectively reduces the complexity of product design, and improves the assembly performance of products.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The headset is characterized by comprising a first headset module and a second headset module, wherein the first headset module and the second headset module respectively comprise a control chip, the control chip in the first headset module is connected with the control chip in the second headset module through a USB signal line, and the USB signal line comprises a D + line, a D-line, a ground line and a power line.

2. The headset of claim 1, wherein a control chip in the first headset module or the second headset module is connected to a terminal, and the control chip comprises:

3. The headphone of claim 2, wherein the first headphone module and the second headphone module each comprise a speaker power amplifier module connected to the control chip, and the speaker power amplifier module comprises a power amplifier and a speaker connected to the power amplifier;

4. The headphone of claim 2, wherein the first headphone module and the second headphone module each comprise a microphone connected to the control chip;

5. The headset of claim 4, wherein the microphone comprises a first microphone and a second microphone, and the first microphone and the second microphone are connected by a signal line.

6. The headset of any one of claims 1-5, wherein the first headset module and/or the second headset module further comprises a button connected to the control chip.

7. The headset of claim 6, wherein the first headset module and/or the second headset module further comprises an indicator light connected to the control chip.

8. A control chip, comprising:

9. A circuit control system, comprising a first control chip and a second control chip, wherein the first control chip and the second control chip are both the control chip of claim 8;