Earphone, patch cord and audio equipment

Abstract

The embodiment of the invention belongs to the technical field of audio interfaces, and relates to an earphone, which comprises a USB-C socket, a switching circuit and a control circuit, the USB-C socket is provided with idle pins, and the idle pins are used for inputting audio signals or data signals. The USB-C socket is electrically connected with the control circuit; and the switching circuit is connected between the USB-C socket and the control circuit and is used for controlling the idle pin to output the audio signal or the data signal to the control circuit so as to control the earphone to be switched to an audio signal transmission state or a data transmission state. The invention also relates to a patch cord and audio equipment. According to the technical scheme provided by the invention, the idle pins of the USB-C socket can be utilized to improve the pin utilization rate, the internal stacking space of the earphone is saved, and audio signal input and data signal input are realized through one socket.

Description

Technical Field

[0001] The present application relates to the technical field of audio interfaces, and more specifically, to an earphone, a switching cable, and an audio device. Background Art

[0002] As people pay more and more attention to private space, headphones have gradually become one of the necessary items for people to listen to music or information. Now most of the conventional wired headphones on the market use a 3.5mm headphone jack and are connected to audio output devices through an audio cable with 3.5mm male connectors at both ends.

[0003] As the scenes of wearing headphones are gradually increasing, the requirements for headphones are gradually increasing. The conventional 3.5mm headphone jack cannot meet the high level of waterproof and dustproof, and affects the appearance of the headphones. In addition, as the functions of headphones are gradually developed, existing headphones can not only play audio but also perform digital transmission. The 3.5mm male audio cable cannot meet the requirements of data transmission. Summary of the invention

[0004] The technical problem to be solved by the embodiments of the present application is that the existing headphones cannot achieve a high level of waterproof and dustproof and cannot meet the requirements of data transmission.

[0005] In order to solve the above technical problems, an embodiment of the present application provides an earphone, which adopts the following technical solution:

[0006] An earphone, comprising a USB-C socket, a switching circuit and a control circuit;

[0007] The USB-C socket has idle pins, which are used to transmit audio signals or data signals, including A2 pin, A3 pin, A8 pin, A10 pin, A11 pin, B2 pin, B3 pin, B8 pin, B10 pin and B11 pin;

[0008] The USB-C socket is electrically connected to the control circuit;

[0009] The switching circuit is connected between the USB-C socket and the control circuit, and is used to control the idle pin to output an audio signal or a data signal to the control circuit, thereby controlling the headset to switch to an audio signal transmission state or a data transmission state.

[0010] Furthermore, the switching circuit includes a signal input terminal, a switching switch, an audio signal output terminal and a data signal output terminal;

[0011] The signal input terminal is electrically connected to the idle pin;

[0012] One end of the switch is electrically connected to the signal input end, and the other end is electrically connected to the audio signal output end or the data signal output end;

[0013] The audio signal transmission end and the data signal transmission end are both electrically connected to the control circuit.

[0014] Furthermore, the signal input terminal includes a positive input terminal and a negative input terminal;

[0015] The A2 pin and the B2 pin are connected in parallel and then electrically connected to the positive input terminal;

[0016] The A3 pin and the B3 pin are connected in parallel and electrically connected to the negative input terminal.

[0017] Further, the control circuit is electrically connected to the switch;

[0018] The control circuit controls the switch to switch to the audio signal output end or the data signal output end according to the input signal of the USB-C socket.

[0019] Further, the control circuit includes a GPI0 pin, a MIC signal input pin and a GND analog ground input pin;

[0020] The A8 pin and the B8 pin are connected in parallel and then electrically connected to the GPI0 pin, and the A8 pin and the B8 pin are used to input an audio access signal;

[0021] The control circuit is electrically connected to the switching circuit via the GPI0 pin, and is used to control the switching switch to switch to the audio signal output end or the data signal output end;

[0022] The A10 pin and the B10 pin are connected in parallel and then electrically connected to the MIC signal input pin, and the A10 pin and the B10 pin are used to input the MIC signal;

[0023] The A11 pin and the B11 pin are connected in parallel and then connected to the GND analog ground input pin.

[0024] Furthermore, the earphone also includes an analog audio circuit, which is electrically connected between the audio signal output terminal and the control circuit.

[0025] In order to solve the above technical problems, the embodiment of the present application further provides a patch cord, which adopts the following technical solution:

[0026] An adapter cable, used to connect to the headset as described above, characterized in that it includes a USB-C plug and a device plug;

[0027] The USB-C plug is electrically connected to the device plug;

[0028] The adapter cable is electrically connected to the earphone via the USB-C plug and the USB-C socket.

[0029] Furthermore, the device plug is a 3.5 mm plug, and the device plug is provided with a left channel signal terminal, a right channel signal terminal, a microphone signal terminal and a ground signal terminal;

[0030] The USB-C plug includes a SSTXP1 pin, a SSTXP2 pin, a SSTXN1 pin, a SSTXN2 pin, a SBU1 pin, a SBU2 pin, a SSRXN1 pin, a SSRXN2 pin, a SSRXP1 pin, and a SSRXP2 pin;

[0031] The SSTXP1 pin and the SSTXP2 pin are connected in parallel and then electrically connected to the left channel signal terminal;

[0032] The SSTXN1 pin and the SSTXN2 pin are connected in parallel and then electrically connected to the right channel signal terminal;

[0033] The SSRXN1 pin and the SSRXN2 pin are connected in parallel and then electrically connected to the microphone signal terminal;

[0034] The SBU1 pin, the SBU2 pin, the SSRXP1 pin and the SSRXP2 pin are connected in parallel and electrically connected to the ground signal terminal.

[0035] The present application also provides an audio device, which adopts the following technical solution:

[0036] An audio device, comprising the earphone as described above and the adapter cable as described above;

[0037] The adapter cable is detachably plugged into the earphone, and the electrical connection between the adapter cable and the earphone is achieved by plugging the USB-C plug into the USB-C socket.

[0038] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0039] The embodiment of the present application adopts a USB-C socket as a signal input terminal, which can save internal stacking space of the earphone, simplify the manufacturing process of the earphone, and improve the waterproof and dustproof effect when the signal input terminal is plugged in; the idle pins of the USB-C socket are used as the signal input terminal, which improves the pin utilization rate of the USB-C socket and enables the earphone to have the functions of audio transmission and data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the scheme of the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 is a schematic diagram of the circuit structure of the earphone according to an embodiment of the present application;

[0042] Figure 2 is a circuit schematic diagram of a USB-C socket according to an embodiment of the present application;

[0043] Figure 3 is a circuit schematic diagram of a switching circuit according to an embodiment of the present application;

[0044] Figure 4 is a circuit schematic diagram of an analog audio circuit according to an embodiment of the present application;

[0045] Figure 5 is a schematic diagram of the circuit structure of the adapter cable of the embodiment of the present application;

[0046] Figure 6 is a circuit schematic diagram of the adapter cable of an embodiment of the present application;

[0047] Figure 7 It is a schematic diagram of the circuit structure of the audio device according to an embodiment of the present application.

[0048] Reference numerals:

[0049] 1. Headphones; 11. USB-C socket; 12. Switching circuit; 13. Control circuit; 21. USB-C plug; 22. Device plug. DETAILED DESCRIPTION

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0051] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0052] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0053] Embodiments of the headphones of the present application

[0054] See also Figure 1 As shown, an embodiment of the present application provides an earphone, including: a USB-C socket 11, a switching circuit 12 and a control circuit 13.

[0055] The USB-C socket 11 is provided with idle pins, and the idle pins are used to input audio signals or data signals, including A2 pin, A3 pin, A8 pin, A10 pin, A11 pin, B2 pin, B3 pin, B8 pin, B10 pin and B11 pin; the USB-C socket is electrically connected to the control circuit; the switching circuit 12 is connected between the USB-C socket 11 and the control circuit 13, and is used to control the idle pins to output audio signals or data signals to the control circuit 13, so as to control the headset to switch to the audio signal transmission state or the data transmission state. In this embodiment, the USB-C socket 11 includes two rows of pins, one of which is marked as row A and the other is marked as row B.

[0056] See also Figure 2 As shown, in this embodiment, the pins in row A are arranged from top to bottom in sequence from A1 pin to A12 pin, namely: A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11 and A12, wherein the A1 pin corresponds to the first GND terminal, the A2 pin corresponds to the SSTXP1 terminal, the A3 pin corresponds to the SSTXN1 terminal, the A4 pin corresponds to the first VBUS terminal, the A5 pin corresponds to the CC1 terminal, the A6 pin corresponds to the DP1 terminal, the A7 pin corresponds to the DN1 terminal, the A8 pin corresponds to the SBU1 terminal, the A9 pin corresponds to the second VBUS terminal, the A10 pin corresponds to the SSRXN2 terminal, and the A11 pin corresponds to the second GND terminal.

[0057] Please refer again Figure 2As shown, in this embodiment, the pins of row B are arranged from top to bottom from B12 pin to B1 pin, namely: B12, B11, B10, B9, B8, B7, B6, B5, B4, B3, B2, B1, among which the B1 pin corresponds to the third GND terminal, the B2 pin corresponds to the STXP2 terminal, the B3 pin corresponds to the SSTXN2 terminal, the B4 pin corresponds to the third VBUS terminal, the B5 pin corresponds to the CC2 terminal, the B6 pin corresponds to the DP2 terminal, the B7 pin corresponds to the DN2 terminal, the B8 pin corresponds to the SBU2 terminal, the B9 pin corresponds to the fourth VBUS terminal, the B10 pin corresponds to the SSRXN1 terminal, the B11 pin corresponds to the SSTRXP1 terminal, and the B12 pin corresponds to the fourth GND terminal.

[0058] In this embodiment, the A1 pin, the A12 pin, the B1 pin, and the B12 pin are connected in parallel and then grounded, serving as the ground terminal of the USB-C socket 11; the A4 pin, the A9 pin, the B4 pin, and the B9 pin are connected in parallel and then connected to the power input terminal VBUS_IN, serving as the power bus of the USB-C socket 11.

[0059] The A5 pin and the B5 pin are grounded for detection and configuration respectively.

[0060] The A6 pin and the B6 pin are connected in parallel to the USB data positive signal output terminal DP_USB.

[0061] The A7 pin and the B7 pin are connected in parallel to the USB data negative signal output terminal DM_USB.

[0062] In this embodiment, the idle pins include an A2 pin, an A3 pin, an A8 pin, an A10 pin, an A11 pin, a B2 pin, a B3 pin, a B8 pin, a B10 pin, and a B11 pin.

[0063] The earphones provided in the embodiment of the present application use a USB-C socket 11 to replace the 3.5mm socket hole of the existing earphones as the signal input terminal, which saves the internal stacking space of the earphones and simplifies the manufacturing process of the earphones. Compared with the 3.5mm socket hole, the USB-C socket 11 has better waterproof and dustproof effects after being connected to the adapter cable, thereby improving the service life of the earphones. In addition, the idle pins of the USB-C socket 11 are used as the signal input terminals for introducing audio signals and data signals, which improves the pin utilization rate of the USB-C socket 11, so that the earphones have the functions of audio transmission and data transmission, and can save the internal space of the earphones, reduce the number of openings, and make the earphones more beautiful.

[0064] See also Figure 3 As shown, the switching circuit 12 includes a signal input terminal, a switching switch, an audio signal output terminal and a data signal output terminal.

[0065] See also Figure 2 , Figure 3 As shown, in some embodiments, the signal input terminal is electrically connected to the idle pin,

[0066] In this embodiment, the signal input terminal includes a positive input terminal D+ and a negative input terminal D-, the A2 pin and the B2 pin are connected in parallel and electrically connected to the HP_LP_AUXIN terminal, and the HP_LP_AUXIN terminal is electrically connected to the positive input terminal D+; the A3 pin and the B3 pin are connected in parallel and electrically connected to the HP_RP_AUXIN terminal, and the HP_RP_AUXIN terminal is electrically connected to the negative input terminal D-.

[0067] See also Figure 3 As shown, one end of the switching switch is electrically connected to the signal input end, and the other end is electrically connected to the audio signal output end or the data signal output end. In this embodiment, the switching switch is a double-pole double-throw switch, the audio signal output end includes a first positive output end D1+ and a first negative output end D1-, the data signal output end includes a second positive output end D2+ and a second negative output end D2-, the double-pole double-throw switch is connected to the signal input end, one group of contacts of the double-pole double-throw switch is respectively connected to the first positive output end D1+ and the first negative output end D1-, and the other group of contacts is respectively connected to the second positive output end D2+ and the second negative output end D2-.

[0068] Please review Figure 3 As shown, the audio signal transmission end and the data signal transmission end are both electrically connected to the control circuit 13. In this embodiment, the first positive output end D1+ is connected to the audio left channel signal end LP_AUXIN, and the first negative output end D1- is connected to the audio right channel signal end RP_AUXIN, wherein the audio left channel signal end LP_AUXI N and the audio right channel signal end RP_AUXIN are respectively connected to the control circuit 13 to transmit the audio signal to the control circuit 13; the second positive output end D2+ is connected to the USB data positive signal output end DP_USB, and the second negative output end D2- is connected to the USB data negative signal output end DM_USB, wherein the USB data positive signal output end DP_USB and the USB data negative signal output end DM_USB are respectively connected to the control circuit 13 to transmit the data signal to the control circuit 13.

[0069] In this embodiment, the switching circuit 12 further includes a ground terminal GND and a power input terminal VCC electrically connected to a power source.

[0070] The embodiment of the present application utilizes the idle pins of the USB-C socket 11 to electrically connect with the signal input end of the switching circuit 12, and transmits a data signal or an audio signal to the signal input end of the switching circuit 12 through the A2 pin, the A3 pin, the B2 pin, and the B3 pin; and controls the double-pole double-throw switch to contact one set of contacts, so that the switching circuit 12 is connected to the audio signal output end or the data signal output end through the signal input end. After receiving the corresponding signal, the control circuit 13 controls the headset to switch to the audio signal transmission state or the data transmission state.

[0071] See also Figure 1 As shown, in some embodiments, the control circuit 13 is electrically connected to the switching switch, and the control circuit 13 is electrically connected to the USB-C socket 11; the control circuit 13 controls the switching switch to switch to the audio signal output end or the data signal output end according to the input signal of the USB-C socket 11.

[0072] In this embodiment, the control circuit 13 includes a GPI0 pin (not shown in the figure).

[0073] See also Figure 2 As shown, the A8 pin is connected in parallel with the B8 pin and then electrically connected to the GPI0 pin. The A8 pin and the B8 pin are used to input audio access signals. In this embodiment, the A8 pin is connected in parallel with the B8 pin and then connected to the MICP_USB end. The MICP_USB end is connected to the GPI0 pin of the control circuit 13 for inputting audio access signals.

[0074] See also Figure 3 As shown, the control circuit 3 is electrically connected to the switching circuit 12 via the GPI0 pin, and is used to control the switching switch to switch to the audio signal output end or the data signal output end. In this embodiment, the switching circuit 12 also includes a switch control circuit, and the switch control circuit is electrically connected to the GPI0 pin of the control circuit 13.

[0075] In this embodiment, the working principle of the control circuit 13 controlling the switch to switch to the audio signal output end or the data signal output end is as follows:

[0076] When the USB-C socket 11 inputs an audio signal, the A8 pin and the B8 pin receive signals and input an audio access signal to the control circuit 13. After receiving the audio access signal, the control circuit 13 controls the switch control circuit to be turned on, so that the double-pole double-throw switch is connected to the first positive output terminal D1+ and the first negative output terminal D1-. The switching circuit 12 transmits the audio signal of the USB-C socket 11 to the control circuit 13, and the control circuit 13 controls the earphone to switch to the audio signal transmission state.

[0077] When the USB-C socket 11 inputs a data signal, no signal is connected to the A8 pin and the B8 pin, and the control circuit 13 controls the switch control circuit to disconnect, so that the double-pole double-throw switch is connected to the second positive output terminal D2+ and the second negative output terminal D2-, and the switching circuit 12 transmits the data signal of the USB-C socket 11 to the control circuit 13, and the control circuit 13 controls the headset to switch to the data signal transmission state.

[0078] In the embodiment of the present application, the idle pins of the USB-C socket 11 are connected to the control circuit 13, and an audio access signal is transmitted to the GPI0 pin of the control circuit 13 through the A8 pin and the B8 pin. After the control circuit 13 receives the corresponding signal, it controls the double-pole double-throw switch to move, thereby switching the headset to an audio signal transmission state or a data transmission state, thereby improving the pin utilization rate of the USB-C socket 11.

[0079] See also Figure 3 , Figure 4 As shown, in some embodiments, the earphone further includes an analog audio circuit, and the analog audio circuit is electrically connected between the audio signal output terminal and the control circuit 13.

[0080] In this embodiment, the switching circuit 12 outputs an audio signal through the audio left channel signal terminal LP_AUXIN and the audio right channel signal terminal RP_AUXIN, and the analog audio circuit is electrically connected to the audio output terminal of the switching circuit 12, wherein the audio left channel output terminal AUX0L of the analog audio circuit is electrically connected to the audio left channel signal terminal LP_AUXIN; the audio right channel output terminal AUX0R of the analog audio circuit is electrically connected to the audio right channel signal terminal RP_AUXIN, and the audio left channel output terminal AUX0L and the audio right channel output terminal AUX0R of the analog audio circuit are electrically connected to the audio input terminal of the control circuit 13 respectively.

[0081] The embodiment of the present application improves the signal-to-noise ratio of the audio signal, reduces the relative impact of external interference, amplifies the signal source to a voltage of more than 2V, and transmits an audio signal with high input impedance and low output impedance to the power amplifier, so that the power amplifier can perform at an optimal level by adding an analog audio circuit between the audio signal output terminal and the control circuit 13.

[0082] See also Figure 2 As shown, in some embodiments, the control circuit 13 further includes a MIC signal input pin (not shown in the figure) and a GND analog ground input pin (not shown in the figure).

[0083] The A10 pin and the B10 pin are connected in parallel and electrically connected to the MIC signal input pin. The A10 pin and the B10 pin are used to input the MIC signal. In this embodiment, the A10 pin and the B10 pin are connected in parallel and connected to the AUXIN_DET terminal. The AUXIN_DET terminal is connected to the MIC signal input pin.

[0084] The A11 pin and the B11 pin are connected in parallel to the GND analog ground input pin. In this embodiment, the A11 pin and the B11 pin are connected in parallel to the MICN_USB terminal, and the MICN_USB terminal is connected to the GND analog ground input pin.

[0085] The earphones provided in the embodiment of the present application improve the waterproof and dustproof performance and the internal space utilization rate of the earphones by setting the USB-C socket 11 as the signal input interface. By making full use of the idle pins of the USB-C socket 11 as the input ends of the audio signals, data signals and audio access signals, the pin utilization rate of the USB-C socket 11 is improved, so that the earphones have audio transmission, data transmission and switching functions, and can save the internal space of the earphones, reduce the number of openings, and make the earphones more beautiful.

[0086] Embodiment of the adapter cable of the present application

[0087] See also Figure 5 As shown, an embodiment of the present application provides a conversion cable for connecting to the above-mentioned headphones, including a USB-C plug 21 and a device plug 22.

[0088] The USB-C plug 21 is electrically connected to the device plug 22, and the adapter cable is connected to an external device through the device plug 22, wherein the external device includes but is not limited to a computer, a mobile phone, an audio device, and a data storage device.

[0089] The adapter cable is electrically connected to the earphone via the USB-C plug 21 and the USB-C socket 11 .

[0090] See also Figure 6As shown, in some embodiments, the USB-C plug 21 includes two rows of pins arranged in parallel, wherein the first row of pins are, from top to bottom, a GND pin, a SSTXP1 pin, a SSTXN1 pin, a VBUS pin, a CC1 pin, a DP1 pin, a DN1 pin, a SBU1 pin, a VBUS pin, a SSRXN2 pin, a SSRXP2 pin, and a GND pin; the second row of pins are, from top to bottom, a GND pin, a SSRXP1 pin, a SSRXN1 pin, a VBUS pin, a SBU2 pin, a DN2 pin, a DP2 pin, a CC2 pin, a VBUS pin, a SSTXN2 pin, a SSTXP2 pin, and a GND pin.

[0091] In this embodiment, the device plug 22 is a 3.5mm plug, wherein the plug is provided with a left channel signal terminal L, a right channel signal terminal R, a microphone signal terminal MIC and a ground signal terminal GND, and the external device connected to the adapter cable is an external device that supports 3.5mm output.

[0092] In this embodiment, when the USB-C plug 21 is plugged into the USB-C socket 11, its pins that perform signal transmission function include SSTXP1 pin, SSTXP2 pin, SSTXN1 pin, SSTXN2 pin, SBU1 pin, SBU2 pin, SSRXN1 pin, SSRXN2 pin, SSRXP1 pin and SSRXP2 pin.

[0093] The SSTXP1 pin and the SSTXP2 pin are connected in parallel and electrically connected to the left channel signal terminal through a wire to output a left channel audio signal or a positive data transmission signal;

[0094] The SSTXN1 pin and the SSTXN2 pin are connected in parallel and electrically connected to the right channel signal terminal through a wire to output a right channel audio signal or a negative data transmission signal;

[0095] The SSRXN1 pin and the SSRXN2 pin are connected in parallel and electrically connected to the microphone signal terminal through a wire;

[0096] The SBU1 pin, the SBU2 pin, the SSRXP1 pin and the SSRXP2 pin are connected in parallel through a wire and then electrically connected to the ground signal terminal.

[0097] In this embodiment, the wire used to connect the USB-C plug 21 and the audio plug is coated with rubber to prevent the wire from being worn.

[0098] One end of the adapter cable in the embodiment of the present application is set as a USB-C plug 21, and the other end is set as a 3.5mm plug, which improves the waterproof and dustproof effect of the headphone end, increases the adaptation range of the device end, and improves the utilization rate of the adapter cable. In addition, through the SSTXP1 pin and the SSTXP2 pin and the SSTXN1 pin and the SSTXN2 pin on the USB-C plug 21, the adapter cable has the functions of audio transmission and data transmission.

[0099] Embodiments of the audio device of the present application

[0100] See also Figure 7 As shown, an embodiment of the present application provides an audio device, including the earphone 1 as described above and the adapter cable as described above.

[0101] The adapter cable is detachably plugged into the earphone 1 , and the electrical connection between the adapter cable and the earphone 1 is achieved by plugging the USB-C plug 21 into the USB-C socket 11 .

[0102] The audio device is connected to an external device via a device plug 22 .

[0103] See also Figure 2 , Figure 6 As shown, in this embodiment, the adapter cable includes a USB-C plug 21 and a device plug 22.

[0104] The device plug 22 is a 3.5 mm plug, and is provided with a left channel signal terminal, a right channel signal terminal, a microphone signal terminal and a ground signal terminal.

[0105] The USB-C plug 21 includes a SSTXP1 pin, a SSTXP2 pin, a SSTXN1 pin, a SSTXN2 pin, a SBU1 pin, a SBU2 pin, a SSRXN1 pin, a SSRXN2 pin, a SSRXP1 pin, and a SSRXP2 pin.

[0106] The SSTXP1 pin and the SSTXP2 pin are connected in parallel and electrically connected to the left channel signal terminal; the SSTXN1 pin and the SSTXN2 pin are connected in parallel and electrically connected to the right channel signal terminal; the SSRXN1 pin and the SSRXN2 pin are connected in parallel and electrically connected to the microphone signal terminal; the SBU1 pin, the SBU2 pin, the SSRXP1 pin and the SSRXP2 pin are connected in parallel and electrically connected to the ground signal terminal.

[0107] The earphone includes a USB-C socket 11 , a switching circuit 12 and a control circuit 13 .

[0108] The USB-C plug 21 is plugged into the idle pins of the USB-C socket 11 to transmit audio signals or data signals, wherein the idle pins of the USB-C socket 11 include: A2 pin, A3 pin, A8 pin, A10 pin, A11 pin, B2 pin, B3 pin, B8 pin, B10 pin and B11 pin.

[0109] The A2 pin is connected to the SSTXP1 pin, the A3 pin is connected to the SSTXP2 pin, the A8 pin is connected to the SSTXN1 pin, the A10 pin is connected to the SSTXN2 pin, the A11 pin is connected to the SBU1 pin, the B2 pin is connected to the SBU2 pin, the B3 pin is connected to the SSRXN1 pin, the B8 pin is connected to the SSRXN2 pin, the B10 pin is connected to the SSRXP1 pin, and the B11 pin is connected to the SSRXP2 pin to transmit audio signals or data signals.

[0110] The audio device provided in the embodiment of the present application improves the pin utilization rate of the USB-C socket 11 by utilizing the idle pins of the USB-C socket as signal input terminals for introducing audio signals and data signals, so that the earphones have the functions of audio transmission and data transmission, and can save the internal space of the earphones, reduce the number of openings, and make the earphones more beautiful.

[0111] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A headset, characterized in that: Including a USB-C socket, a switching circuit and a control circuit; The USB-C socket has idle pins, which are used to transmit audio signals or data signals, including A2 pin, A3 pin, A8 pin, A10 pin, A11 pin, B2 pin, B3 pin, B8 pin, B10 pin and B11 pin; The USB-C socket is electrically connected to the control circuit; The switching circuit is connected between the USB-C socket and the control circuit, and is used to control the idle pin to output an audio signal or a data signal to the control circuit, thereby controlling the headset to switch to an audio signal transmission state or a data transmission state.

2. The earphone according to claim 1, characterized in that The switching circuit includes a signal input terminal, a switching switch, an audio signal output terminal and a data signal output terminal; The signal input terminal is electrically connected to the idle pin; One end of the switch is electrically connected to the signal input end, and the other end is electrically connected to the audio signal output end or the data signal output end; The audio signal transmission end and the data signal transmission end are both electrically connected to the control circuit.

3. The earphone according to claim 2, characterized in that The signal input terminal includes a positive input terminal and a negative input terminal; The A2 pin and the B2 pin are connected in parallel and then electrically connected to the positive input terminal; The A3 pin and the B3 pin are connected in parallel and electrically connected to the negative input terminal.

4. The earphone according to claim 2 or 3, characterized in that: The control circuit is electrically connected to the switch; The control circuit controls the switch to switch to the audio signal output end or the data signal output end according to the input signal of the USB-C socket.

5. The earphone according to claim 4, characterized in that: The control circuit includes a GPI 0 pin, a MIC signal input pin and a GND analog ground input pin; The A8 pin and the B8 pin are connected in parallel and then electrically connected to the GPI 0 pin, and the A8 pin and the B8 pin are used to input an audio access signal; The control circuit is electrically connected to the switching circuit via the GPI 0 pin, and is used to control the switching switch to switch to the audio signal output end or the data signal output end; The A10 pin and the B10 pin are connected in parallel and then electrically connected to the MIC signal input pin, and the A10 pin and the B10 pin are used to input the MIC signal; The A11 pin and the B11 pin are connected in parallel and then connected to the GND analog ground input pin.

6. The earphone according to claim 2 or 3, characterized in that: The earphone also includes an analog audio circuit, which is electrically connected between the audio signal output terminal and the control circuit.

7. A switching cable, used to connect to the earphone according to any one of claims 1 to 6, characterized in that: Includes USB-C plug and device plug; The USB-C plug is electrically connected to the device plug; The adapter cable is electrically connected to the earphone via the USB-C plug and the USB-C socket.

8. The patch cord according to claim 7, characterized in that: The device plug is a 3.5mm plug, and is provided with a left channel signal terminal, a right channel signal terminal, a microphone signal terminal and a ground signal terminal; The USB-C plug includes a SSTXP1 pin, a SSTXP2 pin, a SSTXN1 pin, a SSTXN2 pin, a SBU1 pin, a SBU2 pin, a SSRXN1 pin, a SSRXN2 pin, a SSRXP1 pin, and a SSRXP2 pin; The SSTXP1 pin and the SSTXP2 pin are connected in parallel and then electrically connected to the left channel signal terminal; The SSTXN1 pin and the SSTXN2 pin are connected in parallel and then electrically connected to the right channel signal terminal; The SSRXN1 pin and the SSRXN2 pin are connected in parallel and then electrically connected to the microphone signal terminal; The SBU1 pin, the SBU2 pin, the SSRXP1 pin and the SSRXP2 pin are connected in parallel and electrically connected to the ground signal terminal.

9. An audio device, characterized in that: Comprising the earphone according to any one of claims 1 to 6 and the adapter cable according to claim 7 or 8; The adapter cable is detachably plugged into the earphone, and the electrical connection between the adapter cable and the earphone is achieved by plugging the USB-C plug into the USB-C socket.

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