Signal transmission device and electronic equipment

Abstract

The invention discloses a signal transmission device and electronic equipment, and relates to the technical field of signal transmission, and the signal transmission device comprises a signal access transmission module and a signal output transmission module which is connected with the signal access transmission module through a cable. The signal access transmission module is used for encoding the four accessed audio and video signals into two audio and video signals, and transmitting the two audio and video signals to the signal output transmission module based on a first signal access transmission channel and a second signal access transmission channel; the signal output transmission module is used for respectively accessing two audio and video signals through a first signal output transmission channel and a second signal output transmission channel, decoding the two audio and video signals into four audio and video signals, and outputting the four audio and video signals to target equipment, transmission channels occupied by transmission of audio and video signals between transceivers are reduced, and the problems of high framework complexity and high device cost caused by use of network cables are avoided.

Description

Technical Field

[0001] The present application relates to the field of signal transmission technology, and in particular to a signal transmission device and an electronic device. Background Art

[0002] With the rapid development of HDMI (High-Definition Multimedia Interface) technology, HDMI products are applied to major audio and video platforms. In the transmission process of HDMI signals, it can be seen that HDMI signals are 4-channel audio and video signals, namely 3 TMDS (Transition Minimized Differential Signaling, differential signal transmission technology) data channel signals and a clock signal. The conventional transmission scheme for HDMI signals is to use audio and video signals to compress the 4-channel audio and video signals, reduce the width, and output the 4-channel audio and video signals through the channel lines between transceivers. However, this scheme occupies more channel lines. If there are other signals that need to be transmitted at this time, the signal that needs to be transmitted can only be superimposed on the audio and video signal for transmission, which is easy to cause interference between signals.

[0003] Based on the above problems, another transmission solution is proposed, which is to output the 4-way input audio and video signals through the network cable after specific encoding and decoding. However, the signal transmission architecture required by this solution is relatively complex and the device cost involved is relatively high.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of the present application is to provide a signal transmission device and an electronic device, aiming to solve the technical problem of how to avoid the complexity of the architecture required for signal transmission and the high cost of the devices involved while reducing the required occupied channel lines.

[0006] To achieve the above-mentioned purpose, the present application proposes a signal transmission device, which includes a signal access transmission module and a signal output transmission module connected to the signal access transmission module through a cable; A signal access transmission module, used for encoding the four received audio and video signals into two audio and video signals, and transmitting the two audio and video signals to the signal output transmission module respectively based on a first signal access transmission channel and a second signal access transmission channel; The signal output transmission module is used to respectively access two audio and video signals through a first signal output transmission channel and a second signal output transmission channel, and decode the two audio and video signals into four audio and video signals before outputting them to a target device.

[0007] In one embodiment, the signal access transmission module includes a first transceiver; The first transceiver is connected to the audio and video signal input port through four third signal access transmission channels, and the first transceiver is connected to the cable output port of the cable through one first signal access transmission channel and one second signal access transmission channel.

[0008] In one embodiment, the first transceiver is connected to the first infrared remote control signal port through the first input and output channel, the first transceiver is connected to the first serial signal port through the second input and output channel, and the first transceiver is connected to the cable output port through a fourth signal access transmission channel.

[0009] In one embodiment, the signal access transmission module further includes a first USB chip; The first USB chip is connected to the USB host port through the first USB signal channel, and the first USB chip is connected to the cable output port through the fifth signal access transmission channel.

[0010] In one embodiment, the signal access transmission module further includes a first controller; The first controller is connected to the first transceiver through a first communication line.

[0011] In one embodiment, the signal output transmission module includes a second transceiver; The second transceiver is connected to the cable access port of the cable through one first signal output transmission channel and one second signal output transmission channel, and the second transceiver is connected to the audio and video signal output port through four third signal output transmission channels.

[0012] In one embodiment, the second transceiver is connected to the second infrared remote control signal port through the third input and output channel, the second transceiver is connected to the second serial signal port through the fourth input and output channel, and the second transceiver is connected to the cable access port through a fourth signal output transmission channel.

[0013] In one embodiment, the signal output transmission module further includes a second USB chip; The second USB chip is connected to the USB device port through the second USB signal channel, and the second USB chip is connected to the cable access port through the fifth signal output transmission channel.

[0014] In one embodiment, the signal output transmission module further includes a second controller; The second controller is connected to the second transceiver through the second communication line.

[0015] In addition, to achieve the above-mentioned purpose, the present application also provides an electronic device, the electronic device includes the signal transmission device as described above, the signal transmission device includes a signal access transmission module, and a signal output transmission module connected to the signal access transmission module through a cable; A signal access transmission module, used for encoding the four received audio and video signals into two audio and video signals, and transmitting the two audio and video signals to the signal output transmission module respectively based on a first signal access transmission channel and a second signal access transmission channel; The signal output transmission module is used to respectively access two audio and video signals through a first signal output transmission channel and a second signal output transmission channel, and decode the two audio and video signals into four audio and video signals before outputting them to a target device.

[0016] One or more technical solutions proposed in this application have at least the following technical effects: A signal transmission device is proposed, which includes a signal access transmission module and a signal output transmission module connected to the signal access transmission module through a cable; the signal access transmission module is used to encode four accessed audio and video signals into two audio and video signals, and based on a first signal access transmission channel and a second signal access transmission channel, the two audio and video signals are respectively transmitted to the signal output transmission module; the signal output transmission module is used to access the two audio and video signals through a first signal output transmission channel and a second signal output transmission channel, respectively, and after decoding the two audio and video signals into four audio and video signals, output them to a target device.

[0017] In the present application, by encoding the four accessed audio and video signals into two audio and video signals, when the signal access transmission module transmits the audio and video signals to the signal access transmission module through a cable, the signal access transmission module only needs to transmit the audio and video signals through two signal access transmission channels, and correspondingly, the signal output transmission module only needs to access the audio and video signals through two signal output transmission channels, thereby effectively reducing the number of occupied transmission channels, so that other signals can be transmitted through other free transmission channels, avoiding interference between signals; at the same time, because the transmission process of audio and video signals between the signal access transmission module and the signal output transmission module is still based on the signal access transmission channel and the signal output transmission channel, the problem of complex architecture corresponding to the signal transmission device and high cost of required components when using network cable transmission is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the signal transmission device of this application; Figure 2 This is a detailed connection diagram of the signal transmission device of this application.

[0021] Description of Figure Numbers: 10. Signal access transmission module; lane11, first signal access transmission channel; lane21, second signal access transmission channel; GSV1, first transceiver; lane31, third signal access transmission channel; HDMI IN, audio and video signal input port; I / O1, first input and output channel; IR IN&OUT1, first infrared remote control signal port; I / O2, second input and output channel; RS-232 IN&OUT1, first serial signal port; lane41, fourth signal access transmission channel; USB chip1, first USB chip; lane USB1, first USB signal channel; USB HOST, USB host port; lane51, fifth signal access transmission channel; MCU1, first controller; I2C1, first communication line; 20. Signal output transmission module; lane12, first signal output transmission channel; lane22, second signal output transmission channel; GSV2, second transceiver; lane32, third signal output transmission channel; HDMI OUT, audio and video signal output port; I / O3, third input and output channel; IR IN&OUT2, second infrared remote control signal port; I / O4, fourth input and output channel; RS-232 IN&OUT2, second serial signal port; lane42, fourth signal output transmission channel; USB chip2, second USB chip; lane USB2, second USB signal channel; USB DEVICE, USB device port; lane52, fifth signal output transmission channel; MCU2, second controller; I2C2, second communication line; CAT, cable; CAT OUT, cable output port; CAT IN, cable access port; S1, audio and video signals.

[0022] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0024] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0025] The main solution of the embodiment of the present application is: a signal transmission device is proposed, which includes a signal access transmission module and a signal output transmission module connected to the signal access transmission module through a cable; the signal access transmission module is used to encode four accessed audio and video signals into two audio and video signals, and based on a first signal access transmission channel and a second signal access transmission channel, the two audio and video signals are respectively transmitted to the signal output transmission module; the signal output transmission module is used to access the two audio and video signals through a first signal output transmission channel and a second signal output transmission channel, respectively, and after decoding the two audio and video signals into four audio and video signals, output them to the target device.

[0026] The conventional transmission scheme for HDMI signals is to use audio and video signals to compress the 4-channel audio and video signals, reduce the width, and then output the 4-channel audio and video signals through the channel lines between the transceivers. However, this scheme occupies more channel lines. If there are other signals that need to be transmitted at this time, the signals that need to be transmitted can only be superimposed on the audio and video signals for transmission, which is easy to cause interference between signals. Based on this existing problem, another transmission scheme is proposed, which is to output the 4-channel input audio and video signals through the network cable after passing them through a specific codec, but the signal transmission architecture required by this scheme is relatively complex, and the device cost involved is relatively high.

[0027] The present application provides a solution, which encodes the four accessed audio and video signals into two audio and video signals, so that when the signal access transmission module transmits the audio and video signals to the signal access transmission module through a cable, the signal access transmission module only needs to transmit the audio and video signals through two signal access transmission channels, and correspondingly, the signal output transmission module only needs to access the audio and video signals through two signal output transmission channels, thereby effectively reducing the number of occupied transmission channels, so that other signals can be transmitted through other free transmission channels, avoiding interference between signals; at the same time, because the transmission process of audio and video signals between the signal access transmission module and the signal output transmission module is still based on the signal access transmission channel and the signal output transmission channel, the problem of complex architecture corresponding to the signal transmission device and high cost of required components when using network cable transmission is avoided.

[0028] It should be noted that the execution subject of this embodiment may be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, etc. The following takes an electronic device as an example to illustrate this embodiment and the following embodiments.

[0029] Based on this, the present application embodiment provides a signal transmission device, referring to Figure 1 , Figure 1 This is a schematic diagram of the structure of the signal transmission device of this application.

[0030] In this embodiment, the signal transmission device includes a signal input transmission module 10, and a signal output transmission module 20 connected to the signal input transmission module 10 via a CAT cable; The signal access transmission module 10 is used to encode the four accessed audio and video signals S1 into two audio and video signals S1, and based on a first signal access transmission channel lane11 and a second signal access transmission channel lane21, transmit the two audio and video signals S1 to the signal output transmission module 20 respectively; the signal output transmission module 20 is used to access the two audio and video signals S1 respectively through a first signal output transmission channel lane12 and a second signal output transmission channel lane22, and after decoding the two audio and video signals S1 into four audio and video signals S1, output them to the target device.

[0031] First, the conventional signal transmission is explained. In the first signal transmission scheme mentioned in the background technology, because the audio and video chip is used to compress and reduce the bandwidth of the 4-channel audio and video signals S1, the output is still 4-channel audio and video signals S1. In order to avoid interference between signals, 4 transmission channels need to be set between the signal access transmission module 10 and the cable CAT, and between the signal output transmission module 20 and the cable CAT for the transmission of the audio and video signal S1. Therefore, in the conventional first signal transmission scheme, 8 transmission channels need to be set for the transmission of the audio and video signal S1. There are too many transmission channels occupied. In the case where the transmission channels set between the conventional transceiver and the cable are 8, this scheme is equivalent to occupying all the transmission channels for the transmission of audio and video signals, which is very unfavorable for the transmission of other signals, so that other signals can only be superimposed on the audio and video signals, and transmitted together with the audio and video signals based on the same transmission channel. There is interference between signals, resulting in a decrease in signal transmission efficiency.

[0032] In the second signal transmission scheme mentioned in the background technology, a dedicated codec chip is used to integrate the four-channel audio and video signals S1 into one signal through specific coding and decoding, and the signal is transmitted from the signal access transmission module 10 to the signal output transmission module 20 via a network cable. Compared with the conventional first signal transmission scheme, although it directly avoids the situation where too many transmission channels are required, because it involves network cables and dedicated codec chips, it greatly increases the architectural complexity and device cost of the signal transmission device, which is not conducive to the continuous production of the signal transmission device.

[0033] Therefore, in order to avoid the problems existing in the above-mentioned signal transmission scheme, this embodiment proposes a signal transmission device, through which the number of transmission channels required can be reduced while avoiding the problems of high architectural complexity and high device cost that exist when using network cables.

[0034] Specifically: According to Figure 1 It can be seen that two transmission channels are respectively set between the signal access transmission module 10 and the cable CAT, and between the signal output transmission module 20 and the cable CAT for transmitting the audio and video signal S1, namely the first signal access transmission channel lane11 and the second signal access transmission channel lane21, the first signal output transmission channel lane12 and the second signal output transmission channel lane22. Compared with conventional signal transmission, it not only reduces the occupancy of 4 transmission channels, but also avoids the use of network cables for the transmission of audio and video signals S1.

[0035] The reason why the present embodiment can reduce the occupancy of the transmission channel is that after encoding the four audio and video signals S1 received through the signal access transmission module 10, they are converted into two audio and video signals S1. Therefore, the two converted audio and video signals S1 can be transmitted to the cable CAT through the first signal access transmission channel lane11 and the second signal access transmission channel lane21 respectively. When the corresponding signal output transmission module 20 accesses the two audio and video signals S1 through the cable CAT, it only needs to call the two transmission channels between the cable CAT, namely the first signal output transmission channel lane12 and the second signal output transmission channel lane22 to access the audio and video signals. At the same time, because only the four audio and video signals are encoded into two audio and video signals, and the transmission channels set between the signal access transmission module 10 and the cable CAT, and the signal output transmission module 20 and the cable CAT are called to transmit the audio and video signals S1, it can also avoid the phenomenon of complex signal transmission architecture and high architecture cost caused by using dedicated codec chips and network cables for transmission.

[0036] It should be noted that in order to ensure that the two audio and video signals S1 transmitted based on the four transmission channels can be effectively output for playback, the signal output transmission module 20 will decode the two connected audio and video signals S1, and reconvert them into the original four audio and video signals S1 and output them to the target device for playback, so as to ensure the output playback effect.

[0037] Reference Figure 2 As shown, the transmission of the audio and video signal S1 that can be achieved by the signal transmission device proposed in this application is first described.

[0038] In a feasible implementation, the signal access transmission module 10 includes a first transceiver GSV1; the first transceiver GSV1 is connected to the audio and video signal input port HDMI IN through four third signal access transmission channels lane31, and the first transceiver GSV1 is connected to the cable output port CAT OUT of the cable CAT through one first signal access transmission channel lane11 and one second signal access transmission channel lane21.

[0039] Specifically, the first transceiver GSV1 included in the signal access transmission module 10 in this embodiment is connected to the audio and video signal input port HDMI IN through four third signal access transmission channels lane31, and is used to access four audio and video signals S1, and encode the four accessed audio and video signals S1 to obtain two audio and video signals S1, and output the two audio and video signals S1 to the cable output port CAT OUT of the cable CAT through the first signal access transmission channel lane11 and the second signal access transmission channel lane21 respectively, and are transmitted to the cable access port CAT IN of the cable CAT through the cable output port CAT OUT.

[0040] The signal output transmission module 20 includes a second transceiver GSV2; the second transceiver GSV2 is connected to the cable access port CAT IN of the cable CAT through a first signal output transmission channel lane12 and a second signal output transmission channel lane22, and the second transceiver GSV2 is connected to the audio and video signal output port HDMI OUT through four third signal output transmission channels lane 32.

[0041] The second transceiver GSV2 included in the signal output transmission module 20 in this embodiment respectively accesses two audio and video signals S1 from the cable access port CAT IN of the cable CAT through the first signal output transmission channel lane12 and the second signal output transmission channel lane22, and decodes the two audio and video signals S1 to obtain the original four audio and video signals S1, and then transmits the decoded four audio and video signals S1 to the audio and video signal output port HDMI OUT through four third signal output transmission channels lane 32, and transmits the decoded four audio and video signals S1 to the target device for playback via the audio and video signal output port HDMI OUT.

[0042] It should be noted that the first transceiver GSV1 can support synthesizing four audio and video signals S1 into two audio and video signals S1 for output, while the second transceiver GSV2 can support splitting two audio and video signals S1 into four audio and video signals S1 for output, thereby ensuring effective transmission of audio and video signals.

[0043] Reference Figure 2 As shown, the transmission of infrared remote control signals and digital signals that can be achieved by the signal transmission device proposed in this application is described.

[0044] In a feasible implementation, the first transceiver GSV1 is connected to the first infrared remote control signal port IR IN&OUT1 through the first input and output channel I / O1, the first transceiver GSV1 is connected to the first serial signal port RS-232 IN&OUT1 through the second input and output channel I / O2, and the first transceiver GSV1 is connected to the cable output port CAT OUT through a fourth signal access transmission channel lane41.

[0045] The second transceiver GSV2 is connected to the second infrared remote control signal port IR IN&OUT2 through the third input and output channel I / O3, the second transceiver GSV2 is connected to the second serial signal port RS-232 IN&OUT2 through the fourth input and output channel I / O4, and the second transceiver GSV2 is connected to the cable access port CAT IN through a fourth signal output transmission channel lane42.

[0046] according to Figure 2 It can be seen that because only two transmission channels between the signal access transmission module 10 and the cable CAT, and the signal output transmission module 20 and the cable CAT are occupied for the transmission of the audio and video signal S1, namely the first signal access transmission channel lane11 and the second signal access transmission channel lane21, the first signal output transmission channel lane12 and the second signal output transmission channel lane22, there is one transmission channel left in an idle state at this time, which can be used to transmit other signals without affecting the transmission of the audio and video signal S1.

[0047] Specifically: the first transceiver GSV1 in this embodiment is connected to the first infrared remote control signal port IR IN&OUT1 and the first serial signal port RS-232 IN&OUT1 through the first input and output channel I / O1 and the second input and output channel I / O2 respectively, and the second transceiver GSV2 is connected to the second infrared remote control signal port IR IN&OUT2 and the second serial signal port RS-232 IN&OUT2 through the third input and output channel I / O3 and the fourth input and output channel I / O4 respectively.

[0048] If the first transceiver GSV1 accesses the infrared remote control signal or digital signal from the first infrared remote control signal port IR IN&OUT1 or the first serial signal port RS-232 IN&OUT1 through the first input and output channel I / O1 or the second input and output channel I / O2, the infrared remote control signal or digital signal can be transmitted to the cable output port CAT OUT of the cable CAT through the fourth signal access transmission channel lane41, and the infrared remote control signal or digital signal is transmitted to the cable output port CAT OUT of the cable CAT via the cable output port CAT OUT. After the second transceiver GSV2 accesses the infrared remote control signal or digital signal from the cable access port CAT IN of the cable CAT through the fourth signal output transmission channel lane42, the accessed infrared remote control signal or digital signal is directly output to the second infrared remote control signal port IR IN&OUT2 or the second serial signal port RS-232 IN&OUT2 through the third input and output channel I / O3 or the fourth input and output channel I / O4.

[0049] If the second transceiver GSV2 accesses the infrared remote control signal or digital signal from the second infrared remote control signal port IR IN&OUT2 or the second serial signal port RS-232 IN&OUT2 through the third input and output channel I / O3 or the fourth input and output channel I / O4, the infrared remote control signal or digital signal can be transmitted to the cable access port CAT IN of the cable CAT through the fourth signal output transmission channel lane42, and the infrared remote control signal or digital signal is transmitted to the cable access port CAT IN of the cable CAT via the cable access port CAT IN. After the first transceiver GSV1 accesses the infrared remote control signal or digital signal from the cable output port CAT OUT of the cable CAT through the fourth signal access transmission channel lane41, the accessed infrared remote control signal or digital signal is directly output to the first infrared remote control signal port IR IN&OUT1 or the first serial signal port RS-232 IN&OUT1 through the first input and output channel I / O1 or the second input and output channel I / O2.

[0050] It can be seen from the transmission process of the above signals that the infrared remote control signal and the digital signal will not be superimposed on the audio and video signal S1 during the transmission process, so interference between the signals can be avoided, ensuring the effective transmission of the audio and video signals, infrared remote control signals and digital signals, and at the same time, it can also realize two-way communication between the device connected to the first infrared remote control signal port IR IN&OUT1 or the first serial signal port RS-232 IN&OUT1 and the device connected to the second infrared remote control signal port IR IN&OUT2 or the second serial signal port RS-232 IN&OUT2.

[0051] Reference Figure 2As shown, the USB signal transparent transmission that can be achieved by the signal transmission device proposed in this application is explained.

[0052] In a feasible implementation, the signal access transmission module 10 also includes a first USB chip USB chip1; the first USB chip USB chip1 is connected to the USB host port USB HOST through the first USB signal channel lane USB1, and the first USB chip USB chip1 is connected to the cable output port CAT OUT through the fifth signal access transmission channel lane51.

[0053] The signal output transmission module 20 also includes a second USB chip USB chip2; the second USB chip USB chip2 is connected to the USB device port USB DEVICE through the second USB signal channel lane USB2, and the second USB chip USB chip2 is connected to the cable access port CAT IN through the fifth signal output transmission channel lane52.

[0054] according to Figure 2 It can be seen that the signal transmission device proposed in the present application can also realize the transparent transmission function of USB signals between the USB host and the USB device.

[0055] Specifically, the signal transmission device in this embodiment is also provided with a first USB chip USB chip1 and a second USB chip USB chip2. The first USB chip USB chip1 is connected to the USB host port USB HOST through the first USB signal channel lane USB1, and is connected to the cable output port CAT OUT of the cable CAT through the fifth signal access transmission channel lane51. The other end of the cable CAT, that is, the cable access port CAT IN, is connected to the second USB chip USB chip2 through the fifth signal output transmission channel lane52, and the second USB chip USB chip2 is connected to the USB device port USB DEVICE through the second USB signal channel lane USB2.

[0056] When the USB host needs to send a corresponding USB signal to the USB device, the USB host will transmit the generated USB signal to the first USB chip USB chip1 through the first USB signal channel lane USB1, the first USB chip USB chip1 will transmit the received USB signal to the cable CAT through the fifth signal access transmission channel lane51, and the USB signal will be transmitted to the fifth signal output transmission channel lane52 through the cable CAT, and enter the second USB chip USB chip2, and the received USB signal will be transmitted to the USB device based on the second USB signal channel lane USB2 through the second USB chip USB chip2, thereby realizing transparent transmission of USB signals.

[0057] When the USB device needs to send a corresponding USB signal to the USB host, the USB device will transmit the generated USB signal to the second USB chip USB chip2 through the second USB signal channel lane USB2, the second USB chip USB chip2 will transmit the received USB signal to the cable CAT through the fifth signal output transmission channel lane52, the USB signal will be transmitted to the fifth signal access transmission channel lane51 through the cable CAT, and then transmitted to the first USB chip USB chip1, and the received USB signal will be transmitted to the USB host based on the first USB signal channel lane USB1 through the first USB signal, thereby realizing the transparent transmission function of the USB signal between the USB device and the USB host.

[0058] That is, through the above solution, it can be known that the USB signal will not be superimposed on the audio and video signal S1 during the transmission process, so interference between signals can be avoided, ensuring the effective transmission of the audio and video signal and the USB signal.

[0059] Further, according to Figure 2 It can be known that the signal access transmission module 10 further includes a first controller MCU1; the first controller MCU1 is connected to the first transceiver GSV1 through the first communication line I2C1.

[0060] The signal output transmission module 20 further includes a second controller MCU2; the second controller MCU2 is connected to the second transceiver GSV2 via a second communication line I2C2.

[0061] In addition, in order to achieve convenient control of the first transceiver GSV1 and the second transceiver GSV2, the present embodiment also proposes to connect the first controller MCU1 to the first transceiver GSV1, and to connect the second controller MCU2 to the second transceiver GSV2. When it is necessary to control the first transceiver GSV1 or the second transceiver GSV2 to execute relevant transmission instructions or change the transmission channel of the signal, the relevant transmission instructions or change instructions can be sent to the first transceiver GSV1 or the second transceiver GSV2 through the first communication line I2C1 or the second communication line I2C2 by the first controller MCU1 or the second controller MCU2, thereby achieving convenient control and modification of the first transceiver GSV1 and the second transceiver GSV2.

[0062] It can be seen from the above feasible implementation methods that this embodiment encodes and synthesizes the access audio and video signal S1 to reduce the number of audio and video signals required to be transmitted in the transceiver, thereby reducing the transmission channels required to be occupied when the audio and video signal S1 is transmitted between transceivers, thereby allowing spare transmission channels to be freed up between transceivers for other signals that need to be transmitted. While avoiding the signal interference phenomenon that exists in conventional signal transmission schemes that require other signals to be transmitted to be superimposed on the audio and video signal S1 for transmission, because only 4 audio and video signals are encoded into 2 audio and video signals, and the transmission between transceivers is still carried out through the transmission channel established by the CAT cable and the transceiver, it can also avoid the high complexity of the signal transmission architecture and the high cost of the required devices that exist when using dedicated codec chips and network cables for transmission.

[0063] It should be noted that, in this embodiment, the model used by the first transceiver GSV1 and the second transceiver GSV2 is GSV5002, the model used by the first USB chip USB chip1 and the second USB chip USB chip2 is NS1021, and the model used by the first controller MCU1 and the second controller MCU2 is N32G435CBL7.

[0064] An embodiment of the present application further provides an electronic device, which includes the above-mentioned signal transmission device.

[0065] It can be understood that, since the above-mentioned signal transmission device is used in an electronic device, the embodiment of the electronic device includes all technical solutions of all embodiments of the above-mentioned signal transmission device, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0066] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A signal transmission device, characterized in that: The signal transmission device comprises a signal input transmission module and a signal output transmission module connected to the signal input transmission module via a cable; The signal access transmission module is used to encode the four received audio and video signals into two audio and video signals, and transmit the two audio and video signals to the signal output transmission module respectively based on a first signal access transmission channel and a second signal access transmission channel; The signal output transmission module is used to respectively access the two audio and video signals through a first signal output transmission channel and a second signal output transmission channel, and decode the two audio and video signals into the four audio and video signals and then output them to the target device.

2. The signal transmission device according to claim 1, characterized in that: The signal access transmission module includes a first transceiver; The first transceiver is connected to the audio and video signal input port through four third signal access transmission channels, and the first transceiver is connected to the cable output port of the cable through one first signal access transmission channel and one second signal access transmission channel.

3. The signal transmission device according to claim 2, characterized in that: The first transceiver is connected to the first infrared remote control signal port through the first input-output channel, the first transceiver is connected to the first serial signal port through the second input-output channel, and the first transceiver is connected to the cable output port through a fourth signal access transmission channel.

4. The signal transmission device according to claim 2, characterized in that: The signal access transmission module also includes a first USB chip; The first USB chip is connected to the USB host port through a first USB signal channel, and the first USB chip is connected to the cable output port through a fifth signal access transmission channel.

5. The signal transmission device according to claim 2, characterized in that: The signal access transmission module also includes a first controller; The first controller is connected to the first transceiver through a first communication line.

6. The signal transmission device according to claim 1, characterized in that: The signal output transmission module includes a second transceiver; The second transceiver is connected to the cable access port of the cable through one first signal output transmission channel and one second signal output transmission channel, and the second transceiver is connected to the audio and video signal output port through four third signal output transmission channels.

7. The signal transmission device according to claim 6, characterized in that: The second transceiver is connected to the second infrared remote control signal port through the third input and output channel, the second transceiver is connected to the second serial signal port through the fourth input and output channel, and the second transceiver is connected to the cable access port through a fourth signal output transmission channel.

8. The signal transmission device according to claim 6, characterized in that: The signal output transmission module also includes a second USB chip; The second USB chip is connected to the USB device port through a second USB signal channel, and the second USB chip is connected to the cable access port through a fifth signal output transmission channel.

9. The signal transmission device according to claim 6, characterized in that: The signal output transmission module also includes a second controller; The second controller is connected to the second transceiver through a second communication line.

10. An electronic device, characterized in that: The electronic device comprises the signal transmission device according to any one of claims 1 to 9.

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