Audio connector

Abstract

The application discloses an audio connector, and relates to the technical field of signal transmission, which comprises an audio transmitting module and an audio receiving module in communication connection with the audio transmitting module; an audio input port is arranged on the audio transmitting module, and an audio output port is arranged on the audio receiving module; the audio input port is connected with a display device, is used for accessing audio signals transmitted by the display device, and determines a transmission chip used for transmitting the audio signals according to the type of the audio signals; the audio output port is connected with a power amplifier device, is used for accessing the audio signals from an access chip corresponding to the type of the audio signals, and outputs the audio signals to the power amplifier device for audio playing, thereby avoiding the problems of audio signal playing quality decline or audio signal output failure caused by using transmission chips and access chips that cannot match the audio signals for audio signal transmission, and realizing the effect of effectively transmitting various audio signals based on one audio connector.

Description

Technical Field

[0001] This application relates to the field of signal transmission technology, and more particularly to an audio connector. Background Technology

[0002] Currently, display devices and power amplifiers are mostly placed separately, so they need to be connected by a special extension cable. However, because the extension cable is too stiff and the interface is too large, the connection between the display device and the power amplifier is inconvenient and unsightly. Therefore, in most cases, a special audio connection device is used to convert the signal before transmission.

[0003] Conventional audio connectors can only support the transmission of one type of audio signal. If the display device is transmitting an audio signal type that the audio connector does not support, the audio connector will not be able to process the audio signal correctly, resulting in a decrease in audio quality of the output audio signal, or even the audio connector will not be able to output the audio signal at all.

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this application is to provide an audio connector that addresses the technical problem of how to transmit multiple audio signal types based on a single audio connector.

[0006] To achieve the above objectives, this application proposes an audio connector for connecting a display device and a power amplifier device. The audio connector includes: an audio transmitting module and an audio receiving module that establishes a communication connection with the audio transmitting module.

[0007] The audio transmitting module is equipped with an audio input port, and the audio receiving module is equipped with an audio output port;

[0008] The audio input port is connected to the display device to receive audio signals from the display device and to determine the transmission chip used to transmit the audio signals based on the type of audio signal.

[0009] The audio output port is connected to the power amplifier device and is used to receive audio signals from the access chip corresponding to the type of audio signal, and output the audio signals to the power amplifier device for audio playback.

[0010] In one embodiment, the audio signal includes a digital audio signal or a high-definition multimedia audio signal, and the audio transmitting module is further provided with a network cable connection output port, and the audio receiving module is further provided with a network cable connection input port;

[0011] The network cable connection output port is connected to the network cable connection input port via an Ethernet cable, and is used to transmit the digital audio signal or high-definition multimedia audio signal received by the audio transmitting module to the audio receiving module.

[0012] In one embodiment, the audio input port includes an optical fiber audio input port, which is connected to the display device via an optical fiber cable and is used to receive digital audio signals transmitted from the display device.

[0013] In one embodiment, the audio output port includes an optical fiber audio output port, which is connected to the power amplifier via an optical fiber cable and is used to send digital audio signals from the display device to the power amplifier.

[0014] In one embodiment, an encoding chip is provided between the optical fiber audio input port and the network cable connection output port. The encoding chip is used to encode and transmit digital audio signals.

[0015] A decoding chip is installed between the network cable input port and the optical fiber audio output port. The decoding chip is used to decode and transmit digital audio signals. The encoding chip is the transmission chip, and the decoding chip is the access chip.

[0016] In one embodiment, the audio input port further includes a high-definition multimedia audio input port, which is connected to the display device via a high-definition multimedia cable and is used to receive high-definition multimedia audio signals transmitted from the display device.

[0017] In one embodiment, the audio output port further includes a high-definition multimedia audio output port, which is connected to the power amplifier via a high-definition multimedia cable and is used to send high-definition multimedia audio signals from the display device to the power amplifier.

[0018] In one embodiment, a first pass-through chip is provided between the high-definition multimedia audio input port and the network cable connection output port. The first pass-through chip is used to pass through the high-definition multimedia audio signal at the high-definition multimedia audio input port to the network cable connection output port.

[0019] A second pass-through chip is provided between the network cable connection input port and the high-definition multimedia audio output port. The second pass-through chip is used to pass through the high-definition multimedia audio signal at the network cable connection input port to the high-definition multimedia audio output port. The first pass-through chip is a transmission chip, and the second pass-through chip is an access chip.

[0020] In one embodiment, the audio transmission module is provided with a switching switch, which is used to switch between digital audio transmission mode and high-definition multimedia audio transmission mode.

[0021] In one embodiment, the audio transmitting module and the audio receiving module are each provided with a power input port for connecting to a power supply.

[0022] One or more technical solutions proposed in this application have at least the following technical effects:

[0023] An audio connector is proposed for connecting a display device and a power amplifier. The audio connector includes an audio transmitting module and an audio receiving module that establishes a communication connection with the audio transmitting module. The audio transmitting module has an audio input port, and the audio receiving module has an audio output port. The audio input port is connected to the display device to receive audio signals from the display device and determines the transmission chip for transmitting the audio signal according to the type of the audio signal. The audio output port is connected to the power amplifier to receive audio signals from the access chip corresponding to the type of audio signal and output the audio signals to the power amplifier for audio playback.

[0024] In this application, the transmission chip corresponding to the type of the currently incoming audio signal is determined by the audio input port on the audio transmitting module included in the audio connector. Based on the transmission chip, the incoming audio signal is correctly processed and transmitted. At the same time, the access chip corresponding to the type of the currently incoming audio signal is determined by the audio output port on the audio receiving module included in the audio connector. Based on the access chip, the incoming audio signal is output normally. This avoids the problem of degraded audio signal playback quality or audio signal output failure caused by using transmission chips and access chips that are not compatible with the audio signal. This achieves the effect of effectively transmitting multiple audio signals based on a single audio connector. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the audio connector module in this application;

[0028] Figure 2 This is a schematic diagram of a feasible structure for the audio connector proposed in this application;

[0029] Figure 3This is a schematic diagram showing the connection between the audio transmitting module and the audio receiving module when the switch is switched to digital audio transmission mode.

[0030] Figure 4 This is a schematic diagram of the internal structure of the audio transmission module of this application;

[0031] Figure 5 This is a schematic diagram of the internal structure of the audio receiving module of this application;

[0032] Figure 6 This is a schematic diagram showing the connection between the audio transmitting module and the audio receiving module when the switch is set to the high-definition multimedia audio transmission mode.

[0033] Explanation of icon numbers:

[0034] 10. Audio connector;

[0035] 20; Audio transmission module; 201; Switch;

[0036] 30. Audio receiving module.

[0037] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0039] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0040] The main solution of this application embodiment is: to propose an audio connector for connecting a display device and a power amplifier device. The audio connector includes: an audio transmitting module and an audio receiving module that establishes a communication connection with the audio transmitting module; the audio transmitting module is provided with an audio input port, and the audio receiving module is provided with an audio output port; the audio input port is connected to the display device for receiving audio signals transmitted from the display device, and determines the transmission chip for transmitting the audio signal according to the type of the audio signal; the audio output port is connected to the power amplifier device for receiving audio signals from the access chip corresponding to the type of audio signal, and outputting the audio signals to the power amplifier device for audio playback.

[0041] Conventional audio connectors can only support the transmission of one type of audio signal. If the display device is transmitting an audio signal type that the audio connector does not support, the audio connector will not be able to process the audio signal correctly, resulting in a decrease in audio quality of the output audio signal, or even the audio connector will not be able to output the audio signal at all.

[0042] This application provides a solution that, through the audio input port of the audio transmitting module included in the audio connector, determines the transmission chip corresponding to the type of the currently incoming audio signal, and correctly processes and transmits the incoming audio signal based on the transmission chip. Simultaneously, through the audio output port of the audio receiving module included in the audio connector, determines the access chip corresponding to the type of the currently incoming audio signal, and outputs the incoming audio signal normally based on the access chip. This avoids the problem of degraded audio signal playback quality or audio signal output failure caused by using transmission chips and access chips that are incompatible with the audio signal.

[0043] Based on this, this application provides an audio connector 10 device, referring to... Figure 1 , Figure 1 This is a schematic diagram of the audio connector 10 of this application.

[0044] In this embodiment, the audio connector 10 is used to connect the display device and the power amplifier device. The audio connector 10 includes: an audio transmitting module 20 and an audio receiving module 30 that establishes a communication connection with the audio transmitting module 20; the audio transmitting module 20 is provided with an audio input port, and the audio receiving module 30 is provided with an audio output port; the audio input port is connected to the display device and is used to receive the audio signal transmitted from the display device, and determine the transmission chip used to transmit the audio signal according to the type of the audio signal; the audio output port is connected to the power amplifier device and is used to receive the audio signal from the access chip corresponding to the type of the audio signal, and output the audio signal to the power amplifier device for audio playback.

[0045] In other words, the audio transmitting module 20 and the audio receiving module 30 included in the audio connector 10 proposed in this embodiment can determine the transmission chip and the access chip that can correctly process, transmit and output the audio signal according to the type of the accessed audio signal. Based on the determined transmission chip and access chip, the correct processing, output and playback of the audio signal are ensured, thereby achieving the effect of normal output of multiple audio signals based on a single audio connector 10.

[0046] Specifically, refer to Figure 1As shown, the audio connector 10 in this embodiment includes an audio transmitting module 20 for connection to a display device. The audio input port on the audio transmitting module 20 transmits the incoming audio signal to a compatible transmission chip, ensuring correct processing and output of the audio signal within the audio transmitting module 20, thus avoiding problems caused by incorrect or failed processing. Simultaneously, the audio connector 10 also includes an audio receiving module 30 for connection to a power amplifier device. The audio output port on the audio receiving module 30 transmits the incoming audio signal through a compatible input chip, enabling normal output and playback of the audio signal within the audio receiving module 30, thus avoiding problems caused by incorrect or failed output of the audio signal.

[0047] Specifically, refer to Figure 2 As shown, Figure 2 This is a feasible structure for an audio connector 10 proposed in this application.

[0048] exist Figure 2 The audio signal includes digital audio signal or high-definition multimedia audio signal, and the audio transmitting module 20 is also equipped with a network cable connection output port (i.e., Figure 2 The audio receiver module 30 also has a network cable connection input port (i.e., CAT OUT). Figure 2 The output port (CAT IN) is connected to the input port via an Ethernet cable and is used to transmit digital audio signals or high-definition multimedia audio signals received by the audio transmitting module 20 to the audio receiving module 30.

[0049] It should be noted that the audio signals in this embodiment include digital audio signals and high-definition multimedia audio signals, that is, the single audio connector 10 proposed in this embodiment can achieve correct processing, output and playback of two types of audio signals.

[0050] Since the audio connection device consists of two independent modules, namely the audio transmitting module 20 and the audio receiving module 30, a connection between the audio transmitting module 20 and the audio receiving module 30 needs to be established in order for the audio signal transmitted from the display device to the audio transmitting module 20 to be output to the audio receiving module 30.

[0051] Specifically, refer to Figure 2 As can be seen, the audio transmitting module 20 in this embodiment is provided with a network cable connection output port, while the audio receiving module 30 is provided with a network cable connection input port. By connecting an Ethernet cable between the network cable connection output port and the network cable connection input port, the audio signal can be transmitted between the audio transmitting module 20 and the audio receiving module 30 through the Ethernet cable.

[0052] according to Figure 3 and Figure 6 It is known that the Ethernet cable used in this embodiment is a CAT6, CAT6a, or CAT7 cable. This type of cable can extend the audio signal transmission distance between the audio transmitting module 20 and the audio receiving module 30, thereby expanding the coverage area; it can improve the layout flexibility between the display device and the power amplifier device, reducing space limitations; it can also extend the placement distance between the display device and the power amplifier device, avoiding electromagnetic interference caused by the physical distance between the display device and the power amplifier device being too close, which would result in a decrease in audio signal quality.

[0053] The audio transmitting module 20 is equipped with a switch 201, which is used to switch the digital audio transmission mode (i.e., Figure 2 S / PDIF and high-definition multimedia audio transmission modes (i.e., S / PDIF) and high-definition multimedia audio transmission modes (i.e. Figure 2 In the eARC), the audio transmitter module 20 and the audio receiver module 30 are respectively provided with power input ports (i.e. Figure 2 The DC 12V input is used to connect to the power supply and enable the audio transmitting module 20 and the audio receiving module 30 to operate normally.

[0054] It should be noted that, Figure 2 The audio transmitter module 20 also includes a power indicator light (i.e., Figure 2 202), firmware upgrade port (i.e. Figure 2 SERVICE) and 12V power input port (i.e. Figure 2 DC 12V in Figure 2 The audio receiver module 30 also includes a power indicator light (i.e., Figure 2 301 in the middle), firmware upgrade port (i.e. Figure 2 SERVICE) and 12V power input port (i.e. Figure 2 (DC 12V in the middle).

[0055] Among them, S / PDIF IN is the optical fiber audio input port, eARC IN is the high-definition multimedia audio input port, S / PDIF OUT is the optical fiber audio output port, and eARC OUT is the high-definition multimedia audio output port.

[0056] ①For example Figure 3As shown, when the switch 201 is switched to digital audio transmission mode, the audio input port includes an optical fiber audio input port, which is connected to the display device via an optical fiber cable and is used to receive the digital audio signal from the display device. The audio output port includes an optical fiber audio output port, which is connected to the power amplifier via an optical fiber cable and is used to send the digital audio signal from the display device to the power amplifier.

[0057] For reference Figure 3 The diagram illustrates a scenario for implementing digital audio signal transmission. As shown, when switch 201 is switched to digital audio transmission mode, the display device (i.e.,...) Figure 3 The television (in the image) is connected to the fiber optic audio input port via a fiber optic cable, and the power amplifier (i.e., Figure 3 The audio amplifier in the display device is connected to the optical fiber audio output port via an optical fiber cable. The display device transmits the corresponding digital audio signal to the optical fiber audio input port via the optical fiber cable. Since the audio signal is connected to the optical fiber audio input port, it can be determined that the audio signal type is a digital audio signal. A dedicated transmission chip for processing and transmitting digital audio signals is connected to the optical fiber audio input port to ensure that the connected digital audio signal can be effectively transmitted in the audio transmission module 20.

[0058] The power amplifier receives the corresponding digital audio signal from the fiber optic audio output port via a fiber optic cable. Since the audio signal is output from the fiber optic audio output port, and a dedicated access chip for processing and transmitting digital audio signals is connected to the fiber optic audio output port, it can be ensured that the digital audio signal can be effectively and completely transmitted from the audio receiving module 30 to the power amplifier.

[0059] Specifically, refer to Figure 4 and Figure 5 As shown, an encoding chip is installed between the optical fiber audio input port and the network cable connection output port. The encoding chip is used to encode and transmit digital audio signals. A decoding chip is installed between the network cable connection input port and the optical fiber audio output port. The decoding chip is used to decode and transmit digital audio signals. The encoding chip is a transmission chip, and the decoding chip is an access chip.

[0060] according to Figure 4 As can be seen, in this embodiment, the digital audio signal received from the optical fiber audio input port is first transmitted to an HDMI connector. The HDMI connector identifies the incoming digital audio signal and transmits it to the encoding chip (i.e., the encoding chip used to encode and transmit the digital audio signal) for transmission. Figure 4 The SiI9437 chip is used to encode digital audio signals and transmit them to the output port connected via a network cable. Figure 4 (RJ45 in the middle).

[0061] according to Figure 5 It can be seen that the network cable is connected to the input port (i.e. Figure 5 The digital audio signal connected via the RJ45 port will be transmitted to the decoding chip (i.e., the chip used for decoding and transmitting the digital audio signal) according to the connection relationship between the devices. Figure 5 In the IT6621 chip, the digital audio signal is decoded and transmitted to the HDMI connector. The other end of the HDMI connector is an optical audio output port. The decoded digital audio signal is output to the amplifier connected to the optical audio output port through the HDMI connector, so as to realize the effective output and playback of the digital audio signal.

[0062] ②For example Figure 6 As shown, when the switch 201 is switched to the high-definition multimedia audio transmission mode, the audio input port also includes a high-definition multimedia audio input port, which is connected to the display device (i.e., [the display device]) via a high-definition multimedia cable. Figure 6 The audio output port is connected to a high-definition television (HDTV) with ARC / eARC functionality, used to receive high-definition multimedia audio signals from the display device. The audio output port also includes a high-definition multimedia audio output port, which connects to the power amplifier (i.e., [unclear]) via a high-definition multimedia cable. Figure 6 It is connected to the Soundbar in the power amplifier and is used to send high-definition multimedia audio signals from the display device to the power amplifier.

[0063] For reference Figure 6 The diagram illustrates a scenario for transmitting high-definition multimedia audio signals. As shown, when switch 201 is switched to high-definition multimedia audio transmission mode, the display device is connected to the high-definition multimedia audio input port via a high-definition multimedia cable, and the power amplifier is connected to the high-definition multimedia audio output port via the same cable. The display device transmits the corresponding high-definition multimedia audio signal to the high-definition multimedia audio input port via the cable. Since the audio signal is connected to the high-definition multimedia audio input port, it can be determined that the audio signal type is a high-definition multimedia audio signal. A dedicated transmission chip for processing and transmitting high-definition multimedia audio signals is connected to the high-definition multimedia audio input port, ensuring that the received high-definition multimedia audio signal can be effectively transmitted in the audio transmission module 20.

[0064] The power amplifier receives the corresponding high-definition multimedia audio signal from the high-definition multimedia audio output port via a high-definition multimedia cable. Since the audio signal is output from the high-definition multimedia audio output port, and a dedicated access chip for processing and transmitting high-definition multimedia audio signals is connected to the high-definition multimedia audio output port, it can be ensured that the high-definition multimedia audio signal can be effectively and completely transmitted from the audio receiving module 30 to the power amplifier.

[0065] Specifically, refer to Figure 4 and Figure 5 As shown, a first pass-through chip is provided between the high-definition multimedia audio input port and the network cable connection output port. The first pass-through chip is used to pass through the high-definition multimedia audio signal at the high-definition multimedia audio input port to the network cable connection output port. A second pass-through chip is provided between the network cable connection input port and the high-definition multimedia audio output port. The second pass-through chip is used to pass through the high-definition multimedia audio signal at the network cable connection input port to the high-definition multimedia audio output port. The first pass-through chip is a transmission chip, and the second pass-through chip is an access chip.

[0066] according to Figure 4 As can be seen, in this embodiment, the high-definition multimedia audio signal received from the high-definition multimedia audio input port is first transmitted to an HDMI connector. This HDMI connector identifies the transmitted high-definition multimedia audio signal and transmits it through to the first pass-through chip (i.e., the chip used for transmitting the high-definition multimedia audio signal). Figure 4 In the chip with model number P82B715, through the transparent cable on the first transparent transmission chip (i.e. Figure 4 (CEC-NET in the network) transmits high-definition multimedia audio signals to the output port of the network cable connection (i.e., Figure 4 (RJ45 in the middle).

[0067] according to Figure 5 It can be seen that the network cable is connected to the input port (i.e. Figure 5 The high-definition multimedia audio signal connected via the RJ45 port is directly transmitted through a transparent cable (i.e., Figure 5 The CEC-NET chip transmits the incoming high-definition multimedia audio signal to the second pass-through chip (i.e., CEC-NET). Figure 5 In the IT6621 chip, the high-definition multimedia audio signal is directly transmitted to the HDMI connector connected to it through the second transparent transmission chip. The other end of the HDMI connector is the high-definition multimedia audio output port. The decoded high-definition multimedia audio signal is output to the power amplifier device connected to the high-definition multimedia audio output port through the HDMI connector, so as to realize the effective output and playback of the high-definition multimedia audio signal.

[0068] It should be noted that, Figure 4The 74LCX16244 is a four-channel differential driver integrated circuit used for long-distance digital audio signal transmission, connected to the SiI9437 chip via a 7.1 I2C bus on the circuit board; the SN74LVC8T245DBQR is an integrated circuit chip responsible for digital audio signal conversion; the VA600 is a highly integrated audio-visual processing chip used to ensure that the output digital audio signal is synchronized with the display screen; OPTICAL is an optical audio interface; SPDIF (Sony / Philips Digital Interface) is a digital audio interface standard used to transmit lossless compressed digital audio signals; the 74HC4052 is a dual four-channel analog multiplexer / demultiplexer, connected to the OPTICAL chip via an SPDIF cable; DDC is the display data channel; HPD is hot-plug detection, used to transmit data to the controller MCU to ensure the correct identification and configuration of the audio transmitter module 20; the MS8416 is an integrated circuit related to audio processing, connected via a 2.0 I2C bus on the circuit board. The I2C bus connects to the 74LCX16244 chip; the RJ45 acts as an output port for network cable connection, connecting to a 12V power supply via a wire, and converting the 12V power supply to a 5V unit to power the HDMI connector. The RJ45 is also connected to the ground terminal.

[0069] Figure 5The 74LCX16244 is a four-channel differential driver integrated circuit used for long-distance high-definition multimedia audio signal transmission, connected to the IT6621 chip via a 7.1 I2C bus on the circuit board; the SN74LVC8T245DBQR is an integrated circuit chip responsible for high-definition multimedia audio signal conversion; the VA6000 is a highly integrated audio-visual processing chip used to ensure that the output high-definition multimedia audio signal is synchronized with the display device's screen; OPTICAL is an optical audio interface; SPDIF (Sony / Philips Digital Interface) is a digital audio interface standard used to transmit lossless compressed high-definition multimedia audio signals; the 74HC4052 is a dual four-channel analog multiplexer / demultiplexer, connected to the OPTICAL chip via an SPDIF cable; DDC is the display data channel used to transmit data to the controller MCU, ensuring correct identification and configuration of the audio receiving module; the CS8406 is an integrated circuit related to audio processing, connected via a 2.0 I2C bus on the circuit board. The I2C bus connects to the 74LCX16244 chip; the RJ45 acts as an input port for network cable connection, connecting to a 12V power supply via a wire, and converting the 12V power supply to a 5V unit to power the HDMI connector, enabling the HDMI connector to power the controller MCU. At the same time, the RJ45 is also connected to the ground terminal.

[0070] It should be noted that, because Figure 3 and Figure 6 The audio transmitting module 20 and audio receiving module 30 involved in the process are... Figure 2 The audio transmitting module 20 and the audio receiving module 30 shown have the same structure, therefore they are not identical. Figure 3 and Figure 6 The audio transmitting module 20 and the audio receiving module 30 are described below.

[0071] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. An audio connector, characterized in that, The audio connector is used to connect the display device and the power amplifier device. The audio connector includes: an audio transmitting module and an audio receiving module that establishes a communication connection with the audio transmitting module. The audio transmitting module is provided with an audio input port, and the audio receiving module is provided with an audio output port; The audio input port is connected to the display device and is used to receive the audio signal transmitted from the display device, and to determine the transmission chip used to transmit the audio signal according to the type of the audio signal. The audio output port is connected to the power amplifier device and is used to receive the audio signal from the access chip corresponding to the type of the audio signal, and output the audio signal to the power amplifier device for audio playback; The audio signal includes a digital audio signal or a high-definition multimedia audio signal. The audio transmitting module is also provided with a network cable connection output port, and the audio receiving module is also provided with a network cable connection input port. The network cable connection output port is connected to the network cable connection input port via an Ethernet cable, and is used to transmit the digital audio signal or the high-definition multimedia audio signal received by the audio transmitting module to the audio receiving module. The audio input port includes an optical fiber audio input port, which is connected to the display device via an optical fiber cable and is used to receive the digital audio signal transmitted from the display device. The audio input port also includes a high-definition multimedia audio input port, which is connected to the display device via a high-definition multimedia cable; The audio output port includes an optical fiber audio output port, which is connected to the power amplifier via an optical fiber cable and is used to send the digital audio signal transmitted from the display device to the power amplifier. The audio output port also includes a high-definition multimedia audio output port, which is connected to the power amplifier via a high-definition multimedia cable. An encoding chip, model SiI9437, is provided between the optical fiber audio input port and the network cable connection output port. A decoding chip, model IT6621, is also provided between the network cable connection input port and the optical fiber audio output port. A first pass-through chip is provided between the high-definition multimedia audio input port and the network cable connection output port. The first pass-through chip is model P82B715. A second pass-through chip is provided between the network cable connection input port and the high-definition multimedia audio output port. The second pass-through chip is model IT6621. The audio transmitting module is equipped with a switching switch, which is used to switch between digital audio transmission mode and high-definition multimedia audio transmission mode. When the switch is switched to the digital audio transmission mode, the display device is connected to the optical fiber audio input port through the optical fiber cable, the power amplifier device is connected to the optical fiber audio output port through the optical fiber cable, and the display device transmits the corresponding digital audio signal to the optical fiber audio input port through the optical fiber cable. When the switch is switched to the high-definition multimedia audio transmission mode, the display device is connected to the high-definition multimedia audio input port through the high-definition multimedia cable, and the power amplifier device is connected to the high-definition multimedia audio output port through the high-definition multimedia cable. The display device transmits the corresponding high-definition multimedia audio signal to the high-definition multimedia audio input port through the high-definition multimedia cable.

2. The audio connector as described in claim 1, characterized in that, The encoding chip is used to encode and transmit the digital audio signal; The decoding chip is used to decode and transmit the digital audio signal, wherein the encoding chip is a transmission chip and the decoding chip is an access chip.

3. The audio connector as described in claim 2, characterized in that, The audio input port is used to receive the high-definition multimedia audio signal transmitted from the display device.

4. The audio connector as described in claim 3, characterized in that, The audio output port is used to send the high-definition multimedia audio signal transmitted from the display device to the power amplifier device.

5. The audio connector as described in claim 4, characterized in that, The first pass-through chip is used to pass through the high-definition multimedia audio signal at the high-definition multimedia audio input port to the network cable connection output port; The second pass-through chip is used to pass through the high-definition multimedia audio signal at the network cable connection input port to the high-definition multimedia audio output port, wherein the first pass-through chip is the transmission chip and the second pass-through chip is the access chip.

6. The audio connector as described in claim 5, characterized in that, The audio transmitting module and the audio receiving module are each provided with a power input port for connecting to a power supply.

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