HDBaseT extender

Abstract

The utility model provides an HDBaseT extender which is applied to the technical field of signal transmission. The HDBaseT extender comprises a transmitting end and a receiving end which are connected through a network cable; the transmitting end comprises an HDMI input interface, a first IR interface module, a first USB interface, a first audio and video processing chip, a first signal transmission chip and a transmitting end output interface. The receiving end comprises an HDMI output interface, a second IR interface module, a second USB interface, a second audio and video processing chip, a second signal transmission chip and a receiving end input interface; the utility model aims to solve the technical problem of how to prolong the signal transmission distance.

Description

Technical Field

[0001] The utility model relates to the technical field of signal transmission, in particular to an HDBaseT extender. Background Art

[0002] HDBaseT transmitter is a highly efficient audio and video transmission device. Based on HDBaseT technology, it can transmit high-definition video, audio, control signals and other data over long distances with high quality through a single network cable. Nowadays, the transmission distance of HDBaseT transmitter can usually reach 100 meters, but this is far from enough for some special scenarios with longer transmission distances.

[0003] Therefore, how to extend the transmission distance of the signal is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The present application proposes an HDBaseT extender, aiming to solve the technical problem of how to extend the transmission distance of the signal.

[0005] To solve the above problems, the present application proposes an HDBaseT extender, the HDBaseT extender comprising: a transmitter and a receiver connected by a network cable; the transmitter comprises: an HDMI input interface, a first IR interface module, a first USB interface, a first audio and video processing chip, a first signal transmission chip and a transmitter output interface; the receiver comprises: an HDMI output interface, a second IR interface module, a second USB interface, a second audio and video processing chip, a second signal transmission chip and a receiver input interface;

[0006] The HDMI input interface, the first IR interface module, and the first USB interface are respectively connected to the first signal transmission chip;

[0007] The first audio and video processing chip is connected to the HDMI input interface and the first signal transmission chip;

[0008] The first signal transmission chip is connected to the transmitting end output interface;

[0009] The HDMI output interface, the second IR interface module, and the second USB interface are respectively connected to the second signal transmission chip;

[0010] The second audio and video processing chip is connected to the HDMI output interface and the second signal transmission chip;

[0011] The second signal transmission chip is connected to the receiving end input interface;

[0012] The transmitting end output interface is connected to the receiving end input interface via a network cable.

[0013] In one embodiment, the first IR interface module includes: a first IR signal access port and a first IR signal transmitting port;

[0014] The first IR signal access port is connected to the first signal transmission chip;

[0015] The first IR signal transmitting port is connected to the first signal transmission chip.

[0016] In one embodiment, the second IR interface module includes: a second IR signal access port and a second IR signal transmitting port;

[0017] The second IR signal access port is connected to the second signal transmission chip;

[0018] The second IR signal transmitting port is connected to the second signal transmission chip.

[0019] In one embodiment, the transmitting end further includes: a first audio and video processing main control chip; the receiving end further includes: a second audio and video processing main control chip;

[0020] The first audio and video processing main control chip is connected to the first audio and video processing chip;

[0021] The second audio and video processing main control chip is connected to the second audio and video processing chip.

[0022] In one embodiment, the transmitting end further includes a first firmware upgrade interface, and the receiving end further includes a second firmware upgrade interface;

[0023] The first firmware upgrade interface is connected to the first audio and video processing main control chip;

[0024] The second firmware upgrade interface is connected to the second audio and video processing main control chip.

[0025] In one embodiment, the transmitting end further includes: an EDID dip switch;

[0026] The EDID dip switch is connected to the first audio and video processing main control chip.

[0027] In one embodiment, the receiving end further comprises: a MODE dip switch;

[0028] The MODE DIP switch is connected to the second signal transmission chip.

[0029] In one embodiment, the transmitting end further comprises: a transmitting end power input port;

[0030] The transmitting end power input port is connected to the first audio and video processing chip and the first signal transmission chip.

[0031] In one embodiment, the receiving end further comprises: a receiving end power input port;

[0032] The receiving end power input port is connected to the second audio and video processing chip and the second signal transmission chip.

[0033] In one embodiment, the first audio and video processing chip and the second audio and video processing chip are both GSV5100, and the first signal transmission chip and the second signal transmission chip are both VS2010.

[0034] The HDBaseT extender proposed in the present application includes: a transmitter and a receiver connected by a network cable; the transmitter includes: an HDMI input interface, a first IR interface module, a first USB interface, a first audio and video processing chip, a first signal transmission chip and a transmitter output interface; the receiver includes: an HDMI output interface, a second IR interface module, a second USB interface, a second audio and video processing chip, a second signal transmission chip and a receiver input interface; the HDMI input interface, the first IR interface module and the first USB interface are respectively connected to the first signal transmission chip; the first audio and video processing chip is connected to the HDMI input interface and the first signal transmission chip; the first signal transmission chip is connected to the transmitter output interface; the HDMI output interface, the second IR interface module and the second USB interface are respectively connected to the second signal transmission chip; the second audio and video processing chip is connected to the HDMI output interface and the second signal transmission chip; the second signal transmission chip is connected to the receiver input interface; the transmitter output interface is connected to the receiver input interface via a network cable.

[0035] The present application compresses the audio and video signals input by the HDMI input interface through the compression function in the first audio and video processing chip, and transmits the compressed signals and the IR signals received by the first IR interface module and the USB signals received by the first USB interface through the first signal transmission chip, thereby extending the signal transmission distance. Furthermore, if the signal format that the first signal transmission chip can transmit over a long distance is consistent with the compressed audio and video signal format, the signal transmission distance can be greatly extended. Then, at the receiving end, the signal can be transmitted through the second signal transmission chip, and the HDMI signal can be restored through the decompression function in the second audio and video processing chip, so that the HDMI display external to the receiving end can operate normally. It can be seen that the present application achieves the purpose of extending the signal transmission distance based on the audio and video processing chip and the signal transmission chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the utility model 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, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0037] Figure 1 This is a schematic diagram of module connections of the first embodiment of the HDBaseT extender of the present application;

[0038] Figure 2 This is the IR interface module connection diagram of the HDBaseT extender for this application;

[0039] Figure 3 This is the main control chip connection diagram of the HDBaseT extender in this application;

[0040] Figure 4 This is the DIP switch connection diagram of the HDBaseT extender for this application;

[0041] Figure 5 This is a schematic diagram of the application scenario of the HDBaseT extender for this application.

[0042] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0043] Description of Figure Numbers:

[0044] 10, transmitter; 20, receiver; 101, HDMI input interface; 102, first IR interface module; 103, first USB interface; 104, first audio and video processing chip; 105, first signal transmission chip; 106, transmitter output interface; 201, HDMI output interface; 202, second IR interface module; 203, second USB interface; 204, second audio and video processing chip; 205, second signal transmission chip; 206, receiver input interface; 1021, first IR signal access port; 1022, first IR signal transmitting port; 2021, second IR signal access port; 2022, second IR signal transmitting port; 107, first audio and video processing main control chip; 207, second audio and video processing main control chip; 108, first firmware upgrade interface; 208, second firmware upgrade interface; 109, EDID dip switch; 209, MODE dip switch. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0048] Based on the above, the first embodiment of the HDBaseT extender of this application is proposed. Figure 1 , Figure 1 This is a schematic diagram of module connections of the first embodiment of the HDBaseT extender of the present application.

[0049] In this embodiment, the HDBaseT extender includes: a transmitter 10 and a receiver 20 connected by a network cable; the transmitter 10 includes: an HDMI input interface 101, a first IR interface module 102, a first USB interface 103, a first audio and video processing chip 104, a first signal transmission chip 105 and a transmitter output interface 106; the receiver 20 includes: an HDMI output interface 201, a second IR interface module 202, a second USB interface 203, a second audio and video processing chip 204, a second signal transmission chip 205 and a receiver input interface 206;

[0050] The HDMI input interface 101, the first IR interface module 102, and the first USB interface 103 are respectively connected to the first signal transmission chip 105;

[0051] The first audio and video processing chip 104 is connected to the HDMI input interface 101 and the first signal transmission chip 105;

[0052] The first signal transmission chip 105 is connected to the transmitting end output interface 106;

[0053] The HDMI output interface 201, the second IR interface module 202, and the second USB interface 203 are respectively connected to the second signal transmission chip 205;

[0054] The second audio and video processing chip 204 is connected to the HDMI output interface 201 and the second signal transmission chip 205;

[0055] The second signal transmission chip 205 is connected to the receiving end input interface 206;

[0056] The transmitting end output interface 106 is connected to the receiving end input interface 206 via a network cable.

[0057] It is understandable that in this embodiment, when the definition of the audio and video signal received by the HDMI input interface 101 is low, for example, lower than 1080P, the audio and video signal, IR signal and USB signal can be directly transmitted through the first signal transmission chip 105 and the second signal transmission chip 205. When the audio and video signal received by the HDMI input interface 101 has a higher definition, since the higher definition will be more severely attenuated during the transmission process, the audio and video signal received by the HDMI input interface 101 can be compressed by the first audio and video processing chip 104 of the transmitting end 10 to extend the transmission distance of the audio and video signal. Based on this, the second audio and video processing chip 204 in the receiving end 20 is used to restore the compressed signal so that the display screen connected to the receiving end 20 can display normally.

[0058] The present application compresses the audio and video signals input by the HDMI input interface 101 through the compression function in the first audio and video processing chip 104, and transmits the compressed signals and the IR signals received by the first IR interface module 102 and the USB signals received by the first USB interface 103 through the first signal transmission chip 105, thereby extending the signal transmission distance. Furthermore, if the signal format that can be transmitted over a long distance by the first signal transmission chip 105 is consistent with the compressed audio and video signal format, the signal transmission distance can be greatly extended. Then, at the receiving end 20, the signal can be transmitted through the second signal transmission chip 205, and the HDMI signal can be restored through the decompression function in the second audio and video processing chip 204, so that the HDMI display external to the receiving end 20 can operate normally. It can be seen that the present application achieves the purpose of extending the signal transmission distance based on the audio and video processing chip and the signal transmission chip.

[0059] Please refer to Figure 2 In one embodiment, the first IR interface module 102 includes: a first IR signal access port 1021 and a first IR signal transmitting port 1022;

[0060] The first IR signal access port 1021 is connected to the first signal transmission chip 105;

[0061] The first IR signal transmitting port 1022 is connected to the first signal transmission chip 105 .

[0062] In one embodiment, the second IR interface module 202 includes: a second IR signal access port 2021 and a second IR signal transmitting port 2022;

[0063] The second IR signal access port 2021 is connected to the second signal transmission chip 205;

[0064] The second IR signal transmitting port 2022 is connected to the second signal transmission chip 205 .

[0065] In this embodiment, the first IR signal access port 1021 and the second IR signal access port 2021 can be connected to an IR receiving line, respectively, and the first IR signal transmitting port 1022 and the second IR signal transmitting port 2022 can be connected to an IR transmitting line, respectively. Thus, the transmitting end 10 and the receiving end 20 can achieve two-way communication based on their respective IR signal access ports and IR signal transmitting ports, thereby improving the efficiency of signal transmission.

[0066] Please refer to Figure 3 In one embodiment, the transmitting end 10 further includes: a first audio and video processing main control chip 107; the receiving end 20 further includes: a second audio and video processing main control chip 207;

[0067] The first audio and video processing main control chip 107 is connected to the first audio and video processing chip 104;

[0068] The second audio and video processing main control chip 207 is connected to the second audio and video processing chip 204 .

[0069] In one embodiment, the transmitting end 10 further includes a first firmware upgrade interface 108, and the receiving end 20 further includes a second firmware upgrade interface 208;

[0070] The first firmware upgrade interface 108 is connected to the first audio and video processing main control chip 107;

[0071] The second firmware upgrade interface 208 is connected to the second audio and video processing main control chip 207 .

[0072] It is understandable that the first audio and video processing main control chip 107 can control the processing process used by the first audio and video processing chip 104, and similarly, the second audio and video processing main control chip 207 can control the processing process used by the second audio and video processing chip 204. Among them, the control content is set when the audio and video processing main control chip leaves the factory, and this application does not limit this. For example, in a feasible implementation, the model of the first audio and video processing main control chip 107 and the second audio and video processing main control chip 207 can be N32G435CBL7.

[0073] In addition, to facilitate firmware updating, the first firmware upgrade interface 108 may be connected to the first audio and video processing main control chip 107 , and the second firmware upgrade interface 208 may be connected to the second audio and video processing main control chip 207 .

[0074] Please refer to Figure 4 In one embodiment, the transmitting end 10 further includes: an EDID dip switch 109;

[0075] The EDID dip switch 109 is connected to the first audio and video processing main control chip 107 .

[0076] It is understandable that the EDID dip switch 109 is used to set the audio EDID. Specifically, different identifiers can be set at both ends of the EDID dip switch 109, for example, COPY and STD, where COPY represents the EDID of the HDMI output interface of the copy receiving end 20, and STD represents the default 1080P 2CH. Thus, the first audio and video processing main control chip 107 can output instructions to the first audio and video processing chip 104 based on the EDID dip switch 109.

[0077] In the present application, by setting the EDID dip switch 109, the present application can be applicable to different audio EDID application scenarios.

[0078] In one embodiment, the receiving end 20 further includes: a MODE dial switch 209;

[0079] The MODE DIP switch 209 is connected to the second signal transmission chip 205 .

[0080] It is understandable that the MODE dip switch 209 is used for mode setting. Specifically, different identifiers can be set at both ends of the MODE dip switch 209, for example, HDBT and Long Reach. Among them, HDBT represents the HDBaseT mode, and Long Reach represents the Long Reach mode. Therefore, the second signal transmission chip 205 can use different modes to transmit signals based on the MODE dip switch 209.

[0081] In this embodiment, the present application can be applicable to different transmission modes through the MODE DIP switch 209.

[0082] In one embodiment, the transmitting end 10 further includes: a transmitting end power input port (not shown in the figure);

[0083] The transmitting end power input port is connected to the first audio and video processing chip 104 and the first signal transmission chip 105 .

[0084] In one embodiment, the receiving end 20 further includes: a receiving end power input port (not shown in the figure);

[0085] The receiving end power input port is connected to the second audio and video processing chip 204 and the second signal transmission chip 205 .

[0086] It is understandable that each chip in the transmitter 10 and the receiver 20 requires power to operate, so the transmitter 10 and the receiver 20 are both provided with a power input port for connecting to a power source.

[0087] In addition, when the HDBaseT extender is further provided with a first audio and video processing main control chip 107 and a second audio and video processing main control chip 207, the first audio and video processing main control chip 107 and the second audio and video processing main control chip 207 are connected to the power input port respectively.

[0088] In one embodiment, the first audio and video processing chip 104 and the second audio and video processing chip 204 are both GSV5100, and the first signal transmission chip 105 and the second signal transmission chip 205 are both VS2010.

[0089] When the above chip model is adopted, when the network cable used by the present application to connect the transmitting end 10 and the receiving end 20 is CAT6, the present application can extend the signal transmission distance to 150 meters.

[0090] In addition, in a feasible implementation manner, the transmitting end 10 and the receiving end 20 may also be provided with a power indicator light (indicating whether the power is connected), a connection signal indicator light (indicating the connection status of the transmitting end 10 and the receiving end 20), and a data signal indicator light (indicating whether there is an HDMI signal, and, if there is an HDMI signal, whether the HDMI signal carries HDCP) for output prompts.

[0091] Please refer to Figure 5 , Figure 5 This is a schematic diagram of the application scenario of the HDBaseT extender of this application. Among them, the power input ports of the transmitter and the receiver can be connected to the power adapter, and the transmitter output interface and the receiver input interface can be connected via a CAT6 network cable. For the transmitter, the HDMI input interface can be connected to a DVD or Blu-ray player, and the first IR signal access port and the first IR signal transmitting port can be connected to the IR receiver and the IR transmitter, respectively. If there is a need to transmit signals in the PC, the PC can also be connected to the transmitter. For the receiving end, the HDMI output interface can be connected to the UHDTV, and the third IR signal access port and the fourth IR signal transmitting port can be connected to the IR receiver and the IR transmitter, respectively. If the receiving end needs to output multiple USB signals, multiple USB interfaces can be set. When there are two USB interfaces at the receiving end, the two USB interfaces can be connected to a USB camera and a USB flash drive, respectively.

[0092] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An HDBaseT extender, characterized in that: The HDBaseT extender includes: a transmitter and a receiver connected by a network cable; the transmitter includes: an HDMI input interface, a first IR interface module, a first USB interface, a first audio and video processing chip, a first signal transmission chip and a transmitter output interface; the receiver includes: an HDMI output interface, a second IR interface module, a second USB interface, a second audio and video processing chip, a second signal transmission chip and a receiver input interface; The HDMI input interface, the first IR interface module, and the first USB interface are respectively connected to the first signal transmission chip; The first audio and video processing chip is connected to the HDMI input interface and the first signal transmission chip; The first signal transmission chip is connected to the transmitting end output interface; The HDMI output interface, the second IR interface module, and the second USB interface are respectively connected to the second signal transmission chip; The second audio and video processing chip is connected to the HDMI output interface and the second signal transmission chip; The second signal transmission chip is connected to the receiving end input interface; The transmitting end output interface is connected to the receiving end input interface via a network cable.

2. The HDBaseT extender according to claim 1, wherein: The first IR interface module includes: a first IR signal access port and a first IR signal transmitting port; The first IR signal access port is connected to the first signal transmission chip; The first IR signal transmitting port is connected to the first signal transmission chip.

3. The HDBaseT extender according to claim 1, wherein: The second IR interface module includes: a second IR signal access port and a second IR signal transmitting port; The second IR signal access port is connected to the second signal transmission chip; The second IR signal transmitting port is connected to the second signal transmission chip.

4. The HDBaseT extender according to claim 1, wherein: The transmitting end also includes: a first audio and video processing main control chip; the receiving end also includes: a second audio and video processing main control chip; The first audio and video processing main control chip is connected to the first audio and video processing chip; The second audio and video processing main control chip is connected to the second audio and video processing chip.

5. The HDBaseT extender according to claim 4, wherein: The transmitting end further includes a first firmware upgrade interface, and the receiving end further includes a second firmware upgrade interface; The first firmware upgrade interface is connected to the first audio and video processing main control chip; The second firmware upgrade interface is connected to the second audio and video processing main control chip.

6. The HDBaseT extender according to claim 4, wherein: The transmitting end also includes: an EDID dip switch; The EDID dip switch is connected to the first audio and video processing main control chip.

7. The HDBaseT extender according to claim 1, wherein: The receiving end also includes: a MODE dial switch; The MODE DIP switch is connected to the second signal transmission chip.

8. The HDBaseT extender according to claim 1, wherein: The transmitting end also includes: a transmitting end power input port; The transmitting end power input port is connected to the first audio and video processing chip and the first signal transmission chip.

9. The HDBaseT extender according to claim 1, wherein: The receiving end also includes: a receiving end power input port; The receiving end power input port is connected to the second audio and video processing chip and the second signal transmission chip.

10. The HDBaseT extender according to claim 1, wherein: The models of the first audio and video processing chip and the second audio and video processing chip are both GSV5100, and the models of the first signal transmission chip and the second signal transmission chip are both VS2010.

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