CN220492379U - Audio and video transmission extension device - Google Patents
Audio and video transmission extension device Download PDFInfo
- Publication number
- CN220492379U CN220492379U CN202322012246.8U CN202322012246U CN220492379U CN 220492379 U CN220492379 U CN 220492379U CN 202322012246 U CN202322012246 U CN 202322012246U CN 220492379 U CN220492379 U CN 220492379U
- Authority
- CN
- China
- Prior art keywords
- transmission
- connector
- audio
- video
- hdmi
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 167
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 230000006870 function Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 239000004606 Fillers/Extenders Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The utility model relates to an audio and video transmission extension device, which comprises a cable connector, wherein the front end of the cable connector is provided with a first transmission port and a second transmission port; the circuit board is electrically connected with the first transmission port and the second transmission port; a conversion chip and a power saving circuit are arranged on the circuit board to provide power conversion and energy saving functions; the transmission cable is connected to one end of the circuit board, and the other end of the transmission cable is provided with a transmission connector which can receive and transmit audio and video signals; the power supply line is connected to the transmission connector, and the other end of the power supply line is provided with a USB connector for supplying power; through first transmission port and second transmission port, the cable connector can extend HDMI and DisplayPort audio and video signal through the network cable, satisfies long distance transmission demand, and under the condition that does not have the AC/DC power, still can provide required electric power through the USB joint, reaches the function of extension HDMI and DisplayPort audio and video signal distance.
Description
Technical Field
The utility model relates to the technical field of audio and video transmission, in particular to an audio and video transmission extension device capable of extending the distance between HDMI and DisplayPort audio and video signals.
Background
HDMI (High Definition Multimedia Interface) is a digital audio-video interface standard widely used in high-definition televisions, computer monitors, projectors and other devices at present. However, in long-distance transmission, the conventional HDMI connection line has a problem of signal attenuation, mainly because of the following points:
cable loss: in long distance transmission, the resistance and inductance inside the cable can cause signal attenuation and distortion. As the transmission distance increases, the signal quality gradually decreases, resulting in image quality loss and sound distortion.
Environmental interference: long-range transmissions are susceptible to ambient electromagnetic interference. For example, power lines, motors, etc. may generate electromagnetic radiation interference signals, further affecting HDMI signal quality.
High frequency attenuation: HDMI signals have a high frequency content, and these high frequency signals are susceptible to attenuation during transmission. As the transmission distance increases, attenuation of the high frequency component may cause degradation of image quality or even signal failure.
In order to solve the attenuation problem in long-distance HDMI signal transmission, a worker in the art introduced an HDMI extender, and extends the HDMI signal to a longer distance by using UTP (Unshielded Twisted Pair) cable technology through cable transmission technology, so as to solve the signal attenuation problem in long-distance transmission of the traditional HDMI, and maintain high-quality audio and video transmission.
However, conventional HDMI extenders require an external AC/DC power supply to provide power supply, which limits HDMI use in an electrical outlet-free operating environment. Therefore, there is a need to develop a signal extension device without external power source to meet the application requirement without power socket.
In view of the above, it is a main motivation and research subject of the present inventors to develop an audio/video transmission extension device capable of extending the distance between HDMI and DisplayPort audio/video signals, satisfying the long-distance transmission requirement of audio/video signals, and providing the required power through USB connector without AC/DC power.
Disclosure of Invention
The utility model aims to provide an audio/video transmission extension device which can extend the distance between HDMI and DisplayPort audio/video signals, meets the long-distance transmission requirement of the audio/video signals, and can still provide required power through a USB connector under the condition of no AC/DC power supply.
In order to solve the above problems and achieve the purpose of the present utility model, the technical means of the present utility model is realized as an audio/video transmission extension device, comprising: the front end of the cable connector is provided with a first transmission port and a second transmission port for transmitting signals; the circuit board is arranged in the cable connector and is electrically connected with the first transmission port and the second transmission port; the conversion chip is arranged on the circuit board and is electrically connected with the circuit board; the power saving circuit is arranged on the circuit board and is connected with the circuit board; one end of the transmission cable is electrically connected with the circuit board, and the other end of the transmission cable is arranged outside the cable connector and is provided with a transmission joint for receiving and transmitting audio and video signals; and one end of the power supply line is electrically connected with the transmission joint, and the other end of the power supply line is provided with a USB joint.
More preferably, the conversion chip is also a DisplayPort signal conversion HDMI signal chip or an HDMI signal conversion DisplayPort signal chip.
More preferably, the first transmission port is also a network port; the second transmission port is also a network port or an HDMI port.
More preferably, the transmission connector is also a DisplayPort connector, an HDMI standard connector, an HDMI mini connector or an HDMI micro connector.
More preferably, the USB connector is also a USB Type-A connector or a USB Type-C connector.
Compared with the prior art, the utility model has the following functions and effects:
first point: the utility model can extend HDMI and DisplayPort audio/video signals through the network cable by the collocation application of the cable connector, the circuit board and the transmission cable, effectively transmit longer distance, thereby extending the transmission capability of audio/video, and the receiving end can convert the transmitted audio/video signals into audio/video frequency signals which can be output on display equipment, such as a plane display or a projection device; through the collocation application, the problem of long-distance transmission can be solved, the occurrence of signal attenuation or quality degradation can be avoided, a user can still enjoy high-quality audio and video effects in a longer distance, and the range and possibility of audio and video transmission are expanded.
Second point: the utility model can effectively manage the power consumption through the collocation application of the conversion chip and the power-saving circuit so as to achieve the energy-saving effect, not only can reduce the energy consumption, but also can help to prolong the service life of the equipment and reduce the influence on the environment.
Third point: the utility model realizes the power supply function through the power supply line and the USB connector, thus the utility model does not need to be externally connected with an AC/DC power supply, the design ensures that the utility model is more convenient and flexible in use, particularly under the scene of inconvenient movement or wiring, the user does not need to worry about the problem of power supply, not only saves an additional power supply, but also reduces the complexity of equipment, so that the device is easier to carry and set, and the user can obtain the required power supply without being limited by a fixed power socket by only connecting the utility model to a device for supporting the USB power supply, and can be easily used in various occasions.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present utility model.
Fig. 2 to 6 are schematic views illustrating the implementation of the first embodiment of the present utility model.
Fig. 7 is a schematic perspective view of a second embodiment of the present utility model.
Fig. 8 and 9 are schematic views illustrating the implementation of a second embodiment of the present utility model.
The figures are marked as follows:
1. power supply line of cable connector 6
11. First transmission port 61 USB connector
12. Audio and video transmission extension device of second transmission port 100
121 HDMI port 200 computer
2. Network cable of circuit board 300
3. 4K screen of conversion chip 400
4. Power saving circuit 500 1080P screen
5. Transmission cable 600 video/audio frequency signal transmitting device
51. Transmission joint 700 video player
Detailed Description
The utility model will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the utility model and the specific objects and functions achieved.
As shown in fig. 1 to 9, an audio/video transmission extension apparatus is disclosed, which includes: a cable connector 1 having a first transmission port 11 and a second transmission port 12 for transmitting signals at the front end thereof; a circuit board 2 disposed in the cable connector 1 and electrically connected to the first transmission port 11 and the second transmission port 12; a conversion chip 3 disposed on the circuit board 2 and electrically connected to the circuit board 2; a power saving circuit 4 disposed on the circuit board 2 and electrically connected to the circuit board 2; a transmission cable 5, one end of which is electrically connected with the circuit board 2, and the other end of which is arranged outside the cable connector 1 and is provided with a transmission joint 51 for receiving and transmitting audio/video signals; and a power supply line 6 having one end electrically connected to the transmission connector 51 and the other end provided with a USB connector 61.
Through the collocation application of the cable connector 1, the circuit board 2 and the transmission cable 5, the HDMI and DisplayPort audio/video signals can be extended through a network cable, so that a longer distance can be effectively transmitted, and the transmission capability of the audio/video can be extended, and the receiving end can convert the transmitted audio/video signals into audio/video frequency signals which can be output to a display device, such as a flat panel display or a projection device; through the collocation application, the problem of long-distance transmission can be solved, the occurrence of signal attenuation or quality degradation can be avoided, a user can still enjoy high-quality audio and video effects in a longer distance, and the range and possibility of audio and video transmission are expanded.
Secondly, through the collocation application of the conversion chip 3 and the power-saving circuit 4, the power consumption can be effectively managed, so as to achieve the energy-saving effect, not only can the energy consumption be reduced, but also the service life of the equipment can be prolonged, and meanwhile, the influence on the environment is reduced.
Furthermore, the power supply line 6 and the USB connector 61 are used to realize the power supply function, so that an external AC/DC power supply is not required, the design makes the utility model more convenient and flexible in use, and particularly in the scene of moving or inconvenient wiring, the user does not need to worry about the problem of power supply, not only saves an additional power supply, but also reduces the complexity of the device, so that the device is easier to carry and set, and the user can obtain the required power supply without being limited by a fixed power socket only by connecting the utility model to a device for supporting the USB power supply, and can be easily used in various occasions.
In the above, the conversion chip 3 is also a DisplayPort signal conversion HDMI signal chip or an HDMI signal conversion DisplayPort signal chip.
By using the conversion chip 3, the present utility model transmits signals between different types of devices, for example, a computer with a DisplayPort interface is connected to a display equipped with an HDMI interface, or a notebook computer with an HDMI interface is connected to a display supporting DisplayPort, so as to solve the problem of interface mismatch, and the present utility model can be used more flexibly and conveniently for users who need to frequently connect different types of devices.
In the foregoing, the first transmission port 11 is also a network port; the second transmission port 12 is also a network port or an HDMI port.
The collocation application of the first transmission port 11 and the second transmission port 12 not only provides the capability of network communication and rapid data transmission, but also supports high-quality audio and video transmission and display expansion while providing a network connection function, so that the utility model has wider connection and use functions.
In the above description, the transmission connector 51 is also a DisplayPort connector, an HDMI standard connector, an HDMI mini connector or an HDMI micro connector; thereby, high quality video and audio transmission can be provided, high resolution video and audio transmission can be supported, and various displays and multimedia devices can be connected.
In the above description, the USB connector 61 is also a USB Type-a connector or a USB Type-C connector; therefore, the utility model has wide compatibility and high transmission speed, and can be used for data transmission, quick charge and connection of various peripheral devices.
As shown in fig. 2, the audio/video transmission extension apparatus 100 according to the present utility model is connected to the computer 200 through the transmission connector 51DisplayPort connector as a transmitting terminal, and then connected to the audio/video transmission extension apparatus 100 according to the present utility model as a first receiving terminal and a second receiving terminal through the first transmission port 11 and the second transmission port 12 by two network cables 300, and connected to the 4K screen 400 and the 1080P screen 500 through the respective transmission connectors 51DisplayPort connector, and the audio/video transmission extension apparatus 100 is powered through the respective USB connector 61.
As shown in fig. 3, the audio/video transmission extension apparatus 100 according to the present utility model is connected to the computer 200 through the transmission connector 51DisplayPort connector as a transmitting terminal, then connected to the audio/video transmission extension apparatus 100 according to the present utility model as a first receiving terminal and a second receiving terminal through the first transmission port 11 and the second transmission port 12 by two network cables 300, respectively, and connected to the 4K screen 400 and the 1080P screen 500 through respective transmission connector 51HDMI connectors, and the audio/video transmission extension apparatus 100 is powered through respective USB connectors 61.
As shown in fig. 4, the audio/video transmission extension apparatus 100 according to the present utility model is used as a transmitting terminal, the audio/video player 700 is connected via the HDMI connector of the transmission connector 51, then the audio/video transmission extension apparatus 100 according to the present utility model as a first receiving terminal and a second receiving terminal are connected via the first transmission port 11 and the second transmission port 12 via two network cables 300, and the 4K screen 400 and the 1080P screen 500 are connected via the HDMI connector of the respective transmission connectors 51, and the audio/video transmission extension apparatus 100 is powered via the USB connector 61.
As shown in fig. 5, the audio/video transmission extension apparatus 100 of the present utility model uses the following modes as follows:
first, a network cable 300 is connected to the video/audio signal transmission device 600 through the first transmission port 11 of the audio/video transmission extension device 100 of the present utility model, and then, is connected to a 4K screen 400 using the DisplayPort connector of the transmission connector 51.
Then, another network cable 300 is used to connect with the audio/video transmission extension apparatus 100 of the present utility model of the first receiving end through the second transmission port 12, and the DisplayPort connector of the transmission connector 51 is also used to connect to a 1080P screen 500.
Next, the audio/video transmission extension device 100 of the present utility model at the first receiving end is connected to the audio/video transmission extension device 100 of the present utility model at the second receiving end again by using a network cable 300, and is connected to another 4K screen 400 again by using the DisplayPort connector of the transmission connector 51.
Finally, the audio/video transmission extension device 100 can obtain power through the respective USB connector 61, and the audio signal transmission device 600 is further connected to a 4K screen 400 and a computer 200.
As shown in fig. 6, the audio/video transmission extension apparatus 100 of the present utility model uses the following modes as follows:
first, a network cable 300 is connected to the av signal transmission apparatus 600 through the first transmission port 11 of the av transmission extension apparatus 100 of the present utility model, and then connected to a 1080P screen 500 using the HDMI connector of the transmission connector 51.
Then, another network cable 300 is used to connect with the audio/video transmission extension apparatus 100 of the present utility model of the first receiving end through the second transmission port 12, and the HDMI connector of the transmission connector 51 is also used to connect to a 4K screen 400.
Next, the audio/video transmission extension apparatus 100 of the present utility model at the first receiving end is connected to the audio/video transmission extension apparatus 100 of the present utility model at the second receiving end again using a network cable 300, and is connected to the other 1080P screen 500 again using the HDMI connector of the transmission connector 51.
Finally, the audio/video transmission extension device 100 can obtain power through the respective USB connector 61, and the audio/video signal transmission device 600 is further connected to a 4K screen 400 and an audio/video player 700.
As shown in fig. 7 and 8, the first transmission port 11 of the audio/video transmission extension device 100 of the present utility model is used as a transmitting end, and the second transmission port 12 is used as an HDMI port 121, and the following modes are used:
first, the DisplayPort connector of the transmission connector 51 is connected to the computer 200 while being connected to a 4K screen 400 through the HDMI connector of the second transmission port 12.
Then, one network cable 300 is connected to the audio/video transmission extension apparatus 100 of the present utility model of the first receiving end through the first transmission port 11, and the DisplayPort connector of the transmission connector 51 is used again to connect to another 4K screen 400.
Next, the audio/video transmission extension apparatus 100 of the present utility model at the first receiving end is connected to the audio/video transmission extension apparatus 100 of the present utility model at the second receiving end again by using a network cable 300, and is connected to a 1080P screen 500 by using the DisplayPort connector of the transmission connector 51.
Next, the audio/video transmission extension apparatus 100 of the present utility model at the second receiving end is connected to the audio/video transmission extension apparatus 100 of the present utility model at the third receiving end again by using a network cable 300, and is connected to another 4K screen 400 by using a DisplayPort connector of the transmission connector 51.
Finally, the audio/video transmission extension apparatus 100 can obtain power through the respective USB connector 61.
As shown in fig. 9, the audio/video transmission extension device 100 of the present utility model uses the first transmission port 11 as a transmitting end, and the second transmission port 12 as an HDMI port, and the following manner of use is adopted:
first, the HDMI connector of the transmission connector 51 is connected to the video player 700, while being connected to a 4K screen 400 through the HDMI connector of the second transmission port 12.
Then, one network cable 300 is connected to the audio/video transmission extension apparatus 100 of the present utility model of the first receiving end through the first transmission port 11, and is connected to the other 1080P screen 500 again using the HDMI connector of the transmission connector 51.
Next, the audio/video transmission extension apparatus 100 of the present utility model at the first receiving end is connected to the audio/video transmission extension apparatus 100 of the present utility model at the second receiving end again using a network cable 300, and is connected to a 4K screen 400 using the HDMI connector of the transmission connector 51.
Next, the audio/video transmission extension apparatus 100 of the present utility model at the second receiving end is connected to the audio/video transmission extension apparatus 100 of the present utility model at the third receiving end again using a network cable 300, and is connected to another 1080P screen 500 using the HDMI connector of the transmission connector 51.
Next, the audio/video transmission extension apparatus 100 of the present utility model at the third receiving end is connected to the audio/video transmission extension apparatus 100 of the present utility model at the fourth receiving end again using a network cable 300, and is connected to another 4K screen 400 using the HDMI connector of the transmission connector 51.
Finally, each of the audio/video transmission extension apparatuses 100 is powered through its own USB connector 61.
Although the present utility model has been described in detail by way of examples above, the present utility model is not limited to these embodiments. The present utility model should be apparent to and understood by those skilled in the art: various changes and modifications can be made without departing from the spirit and scope of the utility model; for example, the technical matters exemplified in the above examples are combined or modified to be new embodiments, and these embodiments are also regarded as the scope of the present utility model, and the scope of the present utility model includes the claims and the scope defined by the claims.
Claims (5)
1. An audio/video transmission extension apparatus, comprising:
a cable connector (1) having a first transmission port (11) and a second transmission port (12) at the front end thereof for transmitting signals;
a circuit board (2) disposed within the cable connector (1) and electrically connected to the first transmission port (11) and the second transmission port (12);
a conversion chip (3) arranged on the circuit board (2) and electrically connected with the circuit board (2);
a power saving circuit (4) arranged on the circuit board (2) and electrically connected with the circuit board (2);
one end of a transmission cable (5) is electrically connected with the circuit board (2), and the other end of the transmission cable is arranged outside the cable connector (1) and is provided with a transmission connector (51) for receiving and transmitting audio and video signals; and
and one end of the power supply line (6) is electrically connected with the transmission connector (51), and the other end of the power supply line is provided with a USB connector (61).
2. The audio/video transmission extension device according to claim 1, wherein the conversion chip (3) is also a DisplayPort signal conversion HDMI signal chip or an HDMI signal conversion DisplayPort signal chip.
3. The audio/video transmission extension device according to claim 2, wherein the first transmission port (11) is also a network port;
the second transmission port (12) is also a network port or an HDMI port.
4. An audio/video transmission extension device according to claim 3, characterized in that the transmission connector (51) is also a DisplayPort connector, an HDMI standard connector, an HDMI mini connector or an HDMI micro connector.
5. The audio/video transmission extension device according to claim 4, wherein the USB connector (61) is also a USB Type-a connector or a USB Type-C connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322012246.8U CN220492379U (en) | 2023-07-28 | 2023-07-28 | Audio and video transmission extension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322012246.8U CN220492379U (en) | 2023-07-28 | 2023-07-28 | Audio and video transmission extension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220492379U true CN220492379U (en) | 2024-02-13 |
Family
ID=89824406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322012246.8U Active CN220492379U (en) | 2023-07-28 | 2023-07-28 | Audio and video transmission extension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220492379U (en) |
-
2023
- 2023-07-28 CN CN202322012246.8U patent/CN220492379U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180165053A1 (en) | Docking station with dual-display synchronous output | |
| CN101426120B (en) | Method for expanding HDMI and/or DVI interface by single Ethernet cable for long distance connection | |
| CN108107975B (en) | Portable docking station | |
| CN109994281B (en) | AOC cable compatible with multiple interfaces | |
| CN205265858U (en) | TV set of configuration USB interface adapter | |
| CN107579402A (en) | A kind of VR/AR connection cables | |
| CN220492379U (en) | Audio and video transmission extension device | |
| CN212343803U (en) | Network connection device of OPS equipment and conference tablet thereof | |
| US11605328B2 (en) | Split-type display system | |
| CN207303601U (en) | A kind of VR/AR connection cables | |
| TWM650731U (en) | Audio and video transmission extension device | |
| CN210958555U (en) | HDMI twisted-pair IP extender | |
| CN209748698U (en) | HDMI, control signal and Ethernet signal network cable transmitter | |
| CN209570869U (en) | A kind of microprocessor device | |
| WO2021162676A1 (en) | Hdmi aoc active optical cable added with extra wires, fibers, or circuit for additional controls and/or data | |
| CN111447377A (en) | Multimedia signal conversion device | |
| CN220821063U (en) | Signal compatible circuit, signal compatible system and electronic equipment | |
| CN211580086U (en) | Host and conference system | |
| CN204681491U (en) | Multi-format video and audio converter | |
| CN201877660U (en) | Adapter cable structure and display device | |
| CN219891562U (en) | Control circuit of multifunctional industrial control board | |
| CN217957182U (en) | HDMI changes VGA high definition data converter | |
| CN107018347A (en) | A kind of 4K high definitions transmitter | |
| CN219394910U (en) | Bidirectional conversion circuit and bidirectional adapter | |
| TWI548279B (en) | Multimedia transceiver system, multimedia transmission apparatus, and multimedia receiving apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |