CN220629392U - Video and audio transmission extension system - Google Patents
Video and audio transmission extension system Download PDFInfo
- Publication number
- CN220629392U CN220629392U CN202322205302.XU CN202322205302U CN220629392U CN 220629392 U CN220629392 U CN 220629392U CN 202322205302 U CN202322205302 U CN 202322205302U CN 220629392 U CN220629392 U CN 220629392U
- Authority
- CN
- China
- Prior art keywords
- video
- audio
- extension
- edid
- display device
- 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 33
- 230000000694 effects Effects 0.000 abstract description 10
- 230000006870 function Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013497 data interchange Methods 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
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The utility model provides an audio-video transmission extension system which can identify the optimal supporting resolution of different display devices connected simultaneously through an EDID identification mode so as to ensure that the optimal display effect can be obtained on each display device. The technical means comprises: a video and audio extension transmitter; a power port; at least one network port for electrically connecting the video extension transmitter with a video extension receiver located at a remote location and connected with at least one display device; at least one video input port for electrically connecting with the video playing device; the control circuit board is arranged in the video extension transmitter and is electrically connected with the power port, the network port and the video input port; the judging chip is arranged on the control circuit board and is electrically connected with the control circuit board, at least one EDID identifying software is built in the judging chip, and the EDID identifying software is used for corresponding to the optimal supporting resolution of the image playing device according to different display devices which are connected at the same time.
Description
Technical Field
The utility model relates to the technical field of video and audio transmission extension, in particular to a video and audio transmission extension system capable of identifying the optimal supporting resolution of different display devices connected simultaneously in an EDID identification mode.
Background
In recent years, with the rapid development of the video industry, the demand for high-quality video transmission is increasing, and in order to meet the demand, video transmission systems are continuously innovated, and high-definition multimedia interface (HDMI) video transmission chips are developed, which can transmit high-resolution video (4K) and audio using network lines, and realize long-distance 4K video transmission using video compression technology.
However, since different brands and models of display devices have different resolutions, the compatibility problem may occur in the audio-visual transmission system, especially in the modern market, the brands and models of the various display devices may be layered, and the supported resolutions may be different, which may cause the audio-visual transmission system to fail to correctly identify the capability and support the resolutions of the display devices.
In view of the above, it is a main motivation and research subject of the present inventors to create an audio/video transmission extension system capable of identifying the best supporting resolution of different display devices connected simultaneously by EDID recognition to ensure the best display effect on each display device.
Disclosure of Invention
The utility model aims to provide an audio-video transmission extension system which can identify the optimal supporting resolution of different display devices connected simultaneously through an EDID identification mode so as to ensure that the optimal display effect can be obtained on each display device.
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 by providing an audio-visual transmission extension system, which includes: a video and audio extension transmitter; a power port for providing power to the video and audio extension transmitter; at least one network port for electrically connecting the video extension transmitter with a video extension receiver located at a remote location and connected with at least one display device; at least one video input port for electrically connecting with the video playing device; the control circuit board is arranged in the video and audio extension transmitter and is electrically connected with the power port, the network port and the video and audio input port; the judging chip is arranged on the control circuit board and is electrically connected with the control circuit board, at least one EDID (electronic data interchange identification) software is built in the judging chip, and the EDID software is used for corresponding to the optimal supporting resolution of the image playing device according to different display devices which are connected at the same time.
More preferably, the video extension receiver further has an EDID reading software built therein, and the EDID reading software can read EDID information electrically connected to the display device and transmit the EDID information with the best resolution of the display device to the video extension transmitter.
More preferably, the EDID recognition software of the video extension transmitter is configured to receive EDID information of the optimal resolution of the display device transmitted by the video extension receiver, determine the number of connections of the video extension receiver to the display device, and transmit an optimal resolution signal corresponding to the video playing device to the display device.
More preferably, the resolution is 4K@60Hz, 4K@30Hz or 1080P@60Hz.
More preferably, the video input Port is a Port having a high-definition multimedia interface (HDMI) or a digital video interface (Display Port).
Compared with the prior art, the utility model has the following functions and effects:
first point: the utility model has at least one EDID identifying software built in the judging chip, can identify the optimal supporting resolution according to different connected display devices, and enables the image playing device to present the optimal image quality on each display device so as to provide better experience and image effect, and simultaneously, can also support various display devices with different brands and models, and can be improved through software updating, thereby improving the functions and compatibility of the system.
Second point: the video and audio transmission extension system can transmit high-resolution images (4K) and sound in a Cat5e, cat6a, cat7 or Cat8 network line mode through the application of the network port, and the longest extension distance reaches 230 feet, so that the problem of long-distance video and audio transmission is solved, the condition of signal attenuation or quality degradation is avoided, a user can still enjoy high-quality video and audio effects in a longer distance, and the range and possibility of video and audio transmission are expanded.
Third point: the video and audio transmission extension system supports at least one network port, so that the video and audio extension receiver can be simultaneously connected with a plurality of display devices, users can watch the same or different contents at different places, and the flexibility and the versatility of use are improved.
Fourth point: the utility model can make the user set, switch the display device and adjust the image setting by controlling the setting of the circuit board, so as to achieve convenient operation function.
Drawings
Fig. 1 is a schematic application diagram of a first embodiment of the present utility model.
Fig. 2 is a schematic operation flow chart of the first embodiment of the present utility model.
Fig. 3 is a schematic application diagram of a second embodiment of the present utility model.
FIG. 4 is a flow chart illustrating the operation of the second embodiment of the present utility model.
The figures are marked as follows:
1A/V extension transmitter 7 judgment chip
EDID identification software for 2 power connection port 71
3 network connection port 10 display device
4 video extension receiver 20 image playing device
41 EDID reading software 100 video and audio transmission extension system
5 video input port 6 control circuit board
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, a video transmission extension system is disclosed, and the video transmission extension system 100 includes: a video and audio extension transmitter 1; a power port 2 for providing power to the video and audio extension transmitter 1; at least one network port 3 for electrically connecting the video extension transmitter 1 with a video extension receiver 4 located remotely and connected to at least one display device 10; at least one video input port 5 for electrically connecting with the video playing device 20; a control circuit board 6 disposed in the video extension transmitter 1 and electrically connected to the power port 2, the network port 3 and the video input port 5; the judging chip 7 is disposed on the control circuit board 6 and electrically connected with the control circuit board, at least one EDID identifying software 71 is built in the judging chip 7, and the EDID identifying software 71 is used for corresponding to the optimal supporting resolution of the image playing device 20 according to different display devices 10 connected simultaneously.
At least one EDID recognition software 71 is built in the judging chip 7, so that the optimal supporting resolution can be recognized according to different connected display devices 10, the image playing device 20 can present the optimal image quality on each display device 10, so as to provide better experience and image effect, and meanwhile, the display devices 10 with different brands and models can be supported, and the functions and compatibility of the system can be improved through software updating.
Secondly, the video and audio transmission extension system 100 can transmit the high-resolution video 4K and the sound in the form of Cat5e, cat6a, cat7 or Cat8 network lines by using the network port 3, and the longest extension distance reaches 230 feet, so as to solve the problem of long-distance video and audio transmission, avoid the condition of signal attenuation or quality degradation, enable a user to still enjoy the high-quality audio and video effect in a longer distance, and expand the range and possibility of video and audio transmission.
Furthermore, by the arrangement of the control circuit board 6, the user can perform the operations of setting, switching the display device and adjusting the image setting, so as to achieve convenient operation functions.
In the above, the resolution is 4K@60Hz, 4K@30Hz or 1080P@60Hz. Accordingly, the audio/video transmission extension system 100 of the present utility model can support various high resolution modes, so that a user can enjoy high quality images and video effects, and can obtain very clear and fine images no matter watching high definition movies, playing games or performing video conferences.
In the above description, the video input Port 5 is a Port having a multimedia interface (HDMI) or a digital video interface (Display Port). Accordingly, the audio-visual transmission extension system 100 of the present utility model can support high-quality video and audio transmission, can process high-resolution images and multi-channel audio effects, provides users with more realistic and shocking audio-visual experiences, and can be widely applied to a plurality of devices and platforms, and is compatible with a plurality of modern digital devices, such as televisions, displays, calculators, projectors, etc., so that users can easily connect various devices, thereby realizing diversified audio-visual entertainment and working requirements.
In the above description, the video extension receiver 4 is further built with an EDID reading software 41, and the EDID reading software 41 can read the EDID information electrically connected to the display device 10 and transmit the EDID information with the best resolution of the display device 10 to the video extension transmitter 1. The operation method is shown in fig. 2, and comprises the following steps:
step S410: electrically connecting the video and audio extension receiver 4 with the display device 10, and reading EDID information of the display device 10;
step S420: judging the maximum analysis of the EDID to be 4K@60Hz, 4K@30Hz or 1080P@60Hz, and marking the maximum resolution;
step S430: judging whether the next group of EDID exists; and
step S440: if yes, the next group of EDID is also added, and the step S420 of judging that the maximum analysis of the EDID is 4K@60Hz, 4K@30Hz or 1080P@60Hz and marking the maximum resolution is returned; if not, the EDID of the maximum resolution is marked in step S420 and transferred to the AV extension transmitter 1.
As shown in fig. 3, the EDID identification software 71 of the av extension transmitter 1 is configured to receive the EDID information of the optimal resolution of the display device 10 transmitted by the av extension receiver 4, determine the number of connections of the av extension receiver 4 to the display device 10, and transmit the optimal resolution signal corresponding to the video playing apparatus 20 to the display device 10. The operation method is shown in fig. 4, and comprises the following steps:
step S110: the EDID identification software 71 of the video extension transmitter 1 receives the EDID information of the optimal resolution of the display device 10 transferred by the video extension receiver 4;
step S120: if not, transmitting the EDID information with the optimal resolution built in the video and audio extension transmitter 1 to the display device 10;
step S130: if yes, the EDID information is analyzed to be 4K@60Hz, 4K@30Hz or 1080P@60Hz to the maximum extent, and the maximum resolution is noted;
step S140: judging whether the next group of EDID information exists; and
step S150: if yes, the next group of EDID is also added, and the step S130 of judging that the maximum analysis of the EDID is 4K@60Hz, 4K@30Hz or 1080P@60Hz and marking the maximum resolution is returned; if not, the EDID information of the maximum resolution is marked in step S130 and transferred to the display device 10.
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. It should be apparent and understood by those of ordinary skill in the art to which the present utility model pertains: 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 foregoing 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-visual transmission extension system, wherein the audio-visual transmission extension system (100) comprises:
a video extension transmitter (1);
a power port (2) for providing power to the video and audio extension transmitter (1);
at least one network port (3) for electrically connecting the video extension transmitter (1) with a video extension receiver (4) located remotely and connected with at least one display device (10);
at least one video input port (5) for electrically connecting with the video playing device (20);
a control circuit board (6) arranged in the video and audio extension transmitter (1) and electrically connected with the power port (2), the network port (3) and the video and audio input port (5); and
the judging chip (7) is arranged on the control circuit board (6) and is electrically connected with the control circuit board, at least one EDID (electronic data identification) software (71) is built in the judging chip (7), and the EDID identification software (71) is used for corresponding to the optimal supporting resolution of the image playing device (20) according to different display equipment (10) which are connected simultaneously.
2. The audio/video transmission extension system according to claim 1, wherein the audio/video extension receiver (4) further has an EDID reading software (41) built therein, and the EDID reading software (41) is configured to read EDID information electrically connected to the display device (10) and transmit EDID information with an optimal resolution of the display device (10) to the audio/video extension transmitter (1).
3. The audio/video transmission extension system according to claim 2, wherein the EDID identification software (71) of the audio/video extension transmitter (1) is configured to receive EDID information of the optimal resolution of the display device (10) transmitted by the audio/video extension receiver (4), determine the number of connections of the audio/video extension receiver (4) to the display device (10), and transmit an optimal resolution signal corresponding to the image playing device (20) to the display device (10).
4. The audio-visual transmission extension system according to claim 3, wherein the resolution is 4k@60hz, 4k@30hz or 1080p@60hz.
5. The audio/video transmission extension system according to claim 1, wherein the audio/video input port (5) is a port having a high-quality multimedia interface or a digital video interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322205302.XU CN220629392U (en) | 2023-08-16 | 2023-08-16 | Video and audio transmission extension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322205302.XU CN220629392U (en) | 2023-08-16 | 2023-08-16 | Video and audio transmission extension system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220629392U true CN220629392U (en) | 2024-03-19 |
Family
ID=90213989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322205302.XU Active CN220629392U (en) | 2023-08-16 | 2023-08-16 | Video and audio transmission extension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220629392U (en) |
-
2023
- 2023-08-16 CN CN202322205302.XU patent/CN220629392U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101448123B (en) | Transmitting device, receiving device, and method for transmitting operational information in receiving device | |
| US9210465B2 (en) | Communication system, transmitter, receiver, communication method, program, and communication cable | |
| JP4821824B2 (en) | Image display device, connector display method, transmission line state detection device, transmission line state detection method, and semiconductor integrated circuit | |
| US8869209B2 (en) | Display device and transmitting device | |
| EP2439924A1 (en) | Extension module and television having the extension module | |
| CN105892976A (en) | Method and device for achieving multi-screen interaction | |
| CN103841389A (en) | Video playing method and player | |
| CN106933524B (en) | Method for increasing display port compatibility | |
| US20170012798A1 (en) | Transmission apparatus, transmission method, reception apparatus, and reception method | |
| US20110032433A1 (en) | Connection state display controller, content processor, content processing system, connection state display control method, its program and recording medium recording the program | |
| CN1957323B (en) | Display apparatus and display system using the same | |
| US20100011143A1 (en) | HDMI extender compatible with high-bandwidth digital content protection | |
| US8306770B2 (en) | Method, system and test platform for testing output of electrical device | |
| CN220629392U (en) | Video and audio transmission extension system | |
| JP2016163238A (en) | Display device and information rewriting method | |
| KR20100137693A (en) | Source device, sink device and controlling method of hdmi for setting optimal resolution | |
| KR20070083341A (en) | Method for controlling electronic apparatus using digital interface | |
| CN101098425A (en) | Method for displaying port of video device or status information of terminal | |
| US8959257B2 (en) | Information processing apparatus and information processing method | |
| TWM648690U (en) | Audio-video transmission extension system | |
| KR20090038660A (en) | Media sink device and method for controlling of the same | |
| KR101437694B1 (en) | Display apparatus and control method thereof | |
| US20240114207A1 (en) | Media docking device and media transfer method | |
| CN214014367U (en) | HDMI signal output device and electronic equipment | |
| TWI765522B (en) | Signal source switching device, multimedia system with signal conversion function and signal conversion method applied thereto |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |