TWM648690U - Audio-video transmission extension system - Google Patents

Abstract

The purpose of this new model is to provide an audio-visual transmission extension system that can identify the best supported resolutions of different display devices connected at the same time through EDID identification to ensure that the best display effects can be obtained on each display device. The technical means include: an audio and video extension transmitter; a power connection port; and at least one network connection port for electrically connecting the audio and video extension transmitter to an audio and video extension receiver located at the remote end and connected to at least one display device. at least one audio-visual input port for electrical connection with the video playback device; a control circuit board disposed in the audio-visual extension transmitter and connected to the power connection port, the network connection port and the audio-visual input The port is electrically connected; a judgment chip is provided on the control circuit board and is electrically connected to it. The judgment chip has at least one EDID recognition software built in. The EDID recognition software can identify different display devices that are connected at the same time. Should be the best supported resolution of the video playback device.

Description

Audio and video transmission extension system

The present invention relates to the technical field of audio and video transmission extension, and particularly refers to an audio and video transmission extension system that can identify the best supported resolution of different display devices connected at the same time through EDID identification.

In recent years, with the rapid development of the audio and video industry, people's demand for high-quality audio and video transmission has been increasing. In order to meet this demand, audio and video transmission systems have continued to innovate and developed high-definition multimedia interface (HDMI) audio and video transmission chips, which can Use network cables to transmit high-resolution images (4K) and sounds, and use image compression technology to achieve long-distance 4K image transmission.

However, since different brands and models of display devices have different resolutions, this difference may lead to compatibility problems in the audio and video transmission system. Especially in the modern market, various brands and models of display devices emerge in endlessly. The supported resolutions may be different, which may cause the audio-visual transmission system to be unable to correctly identify the display device's capabilities and supported resolutions.

In view of this, how to improve the above shortcomings and create an audio-visual transmission extension system that can identify the best supported resolutions of different display devices connected at the same time through EDID identification to ensure that each display device can obtain the best display effect. , will be the main motivation and research topic of this new type of creator.

The purpose of this new model is to provide an audio-visual transmission extension system that can identify the best supported resolutions of different display devices connected at the same time through EDID identification to ensure that the best display effects can be obtained on each display device.

In order to solve the above problems and achieve the purpose of the present invention, the technical means of the present invention are implemented as follows. It is an audio and video transmission extension system, which is characterized in that the audio and video transmission extension system (100) includes: an audio and video extension transmitter (1 ); a power connection port (2) for providing power to the audio-visual extension transmitter (1); at least one network connection port (3) for connecting the audio-visual extension transmitter (1) to the remote end and with At least one audio and video extension receiver (4) connected to the display device (10) is used for electrical connection; at least one audio and video input port (5) can be used for electrical connection with the image playback device (20); a control circuit board ( 6), which is installed in the audio-visual extension transmitter (1) and is electrically connected to the power connection port (2), the network connection port (3) and the audio-visual input port (5); a judgment chip (7) ), which is disposed on the control circuit board (6) and electrically connected to it. The judgment chip (7) has at least one EDID recognition software (71) built in. The EDID recognition software (71) can detect different signals according to simultaneous connections. The display device (10) corresponds to the best supported resolution of the image playback device (20).

More preferably, the audio and video extension receiver (4) also has a built-in EDID reading software (41). The EDID reading software (41) can read the EDID information electrically connected to the display device (10). , and transmits the EDID information with the best resolution of the display device (10) to the audio-visual extension transmitter (1).

More preferably, the EDID recognition software (71) of the audio and video extension transmitter (1) can receive the EDID information of the best resolution of the display device (10) transmitted by the audio and video extension receiver (4), and determine The number of audio and video extension receivers (4) connected to the display device (10) will determine the corresponding The best resolution signal of the image playback device (20) is transmitted to the display device (10).

More preferably, the resolution is 4K@60Hz, 4K@30Hz or 1080P@60Hz.

More preferably, the audio-visual input port (5) is a connection port that conforms to a high-definition multimedia (HDMI) interface or a digital video interface (Display Port) interface.

Compared with the existing technology, the functions and effects of this new model are as follows:

The first point: This new type of judgment chip has at least one built-in EDID recognition software, which can identify the best supported resolution according to different connected display devices, so that the image playback device can present the best image on each display device. quality to provide better experience and image effects. At the same time, it can also support a variety of display devices of different brands and models, and can be improved through software updates to improve system functionality and compatibility.

Second point: This new type of audio-visual transmission extension system can transmit high-resolution images (4K) and sound through the use of network ports through Cat5e, Cat6, Cat6a, Cat7 or Cat8 network lines. The longest extension distance reaches 230 feet to solve the problem of long-distance audio and video transmission, while avoiding signal attenuation or quality degradation, allowing users to still enjoy high-quality audio and video effects over longer distances, expanding the scope and possibilities of audio and video transmission .

The third point: This new type of audio and video transmission extension system supports at least one network connection port, so that the audio and video extension receiver can be connected to multiple display devices at the same time, allowing users to watch the same or different content in different locations, increasing usage flexibility and versatility.

Fourth point: This new model allows users to set, switch display devices, and adjust image settings by controlling the settings of the circuit board to achieve convenient operation functions.

1: Audio and video extension transmitter

2:Power port

3:Network port

4: Audio and video extension receiver

41:EDID reading software

5: Audio and video input port

6:Control circuit board

7:Judge the chip

71:EDID identification software

10:Display device

20:Image playback device

100:Audio and video transmission extension system

S110~S150: steps

S410~S440: steps

[Figure 1] is a schematic diagram of the application of the first implementation type of the present invention.

[Figure 2] is a schematic diagram of the operation flow of the first implementation type of this new type.

[Figure 3] is an application schematic diagram of the second implementation type of the present invention.

[Figure 4] is a schematic diagram of the operation flow of the second implementation type of the present invention.

In order to further understand the characteristics, technical means, and specific purposes and functions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes.

As shown in Figure 1, an audio and video transmission extension system is disclosed, which is characterized in that the audio and video transmission extension system (100) includes: an audio and video extension transmitter (1); a power connection port (2) for Provide power to the audio and video extension transmitter (1); at least one network connection port (3) for receiving the audio and video extension transmitter (1) and the audio and video extension located at the remote end and connected to at least one display device (10) For electrical connection with the device (4); at least one audio-visual input port (5) can be used for electrical connection with the image playback device (20); a control circuit board (6) is provided on the audio-visual extension transmitter (20) 1) and is electrically connected to the power connection port (2), the network connection port (3) and the audio-visual input port (5); a judgment chip (7) is provided on the control circuit board (6) and electrically connected to it. The judgment chip (7) is built with at least one EDID recognition software (71). The EDID recognition software (71) can play the image corresponding to different display devices (10) connected at the same time. The best supported resolution for device (20).

Among them, the judgment chip (7) is built with at least one EDID recognition software (71), which can identify the best supported resolution according to different connected display devices (10), so that the image playback device (20) can The best image quality is presented on each display device (10) to provide better experience and image effects. At the same time, it can also support various brands and models of display devices. (10), and can be improved through software updates to improve system functionality and compatibility.

Secondly, the audio-visual transmission extension system (100) can transmit high-resolution images (4K) and sounds through the use of the network connection port (3) through Cat5e, Cat6, Cat6a, Cat7 or Cat8 network lines, with the longest extension The distance reaches 230 feet to solve the problem of long-distance audio and video transmission, while avoiding signal attenuation or quality degradation, allowing users to still enjoy high-quality audio and video effects at longer distances, expanding the scope of audio and video transmission and possibilities.

Furthermore, through the configuration of the control circuit board (6), the user can perform settings, switch display devices, and adjust image settings to achieve convenient operation functions.

Among the above, the resolution is 4K@60Hz, 4K@30Hz or 1080P@60Hz. Accordingly, the new audio-visual transmission extension system (100) can support multiple high-resolution modes, allowing users to enjoy high-quality images and video effects, whether they are watching high-definition videos, playing games, or conducting video conferences. Extremely clear and detailed images.

Among the above, the audio-visual input port (5) is a connection port that conforms to a high-definition multimedia (HDMI) interface or a digital video interface (Display Port) interface. Accordingly, the new audio-visual transmission extension system (100) can support high-quality video and audio transmission, can process high-resolution images and multi-channel sound effects, provide users with a more realistic and shocking audio-visual experience, and also It can be widely used in many devices and platforms, and is compatible with many modern digital devices, such as TVs, monitors, computers, projectors, etc., allowing users to easily connect various devices to meet diverse audio-visual entertainment and work needs.

Among the above, the audio-visual extension receiver (4) also has a built-in EDID reading software (41). The EDID reading software (41) can read the EDID information electrically connected to the display device (10), and Pass the EDID information with the best resolution of the display device (10) to the audio-visual extended transmission Device(1). Its operation method is shown in Figure 2 and includes the following steps:

Step (S410): Electrically connect the audio and video extension receiver (4) to the display device (10) and read the EDID information of the display device (10);

Step (S420): Determine whether the maximum resolution of the EDID is 4K@60Hz, 4K@30Hz or 1080P@60Hz, and note the maximum resolution;

Step (S430): Determine whether there is a next set of EDIDs; and

Step (S440): If yes, there is the next set of EDID, return to the step (S420) of "Judge whether the maximum resolution of this EDID is 4K@60Hz, 4K@30Hz or 1080P@60Hz, and note the maximum resolution"; if not, If there is no next set of EDID, the EDID with the maximum resolution noted in step (S420) is transmitted to the audio-visual extension transmitter (1).

As shown in Figure 3, the EDID recognition software (71) of the audio and video extension transmitter (1) can receive the best resolution EDID information of the display device (10) transmitted by the audio and video extension receiver (4), and determine The number of the audio-visual extension receiver (4) connected to the display device (10) will transmit the best resolution signal of the image playback device (20) to the display device (10). Its operation method is shown in Figure 4 and includes the following steps:

Step (S110): The EDID identification software (71) of the audio and video extension transmitter (1) receives the EDID information of the best resolution of the display device (10) transmitted by the audio and video extension receiver (4);

Step (S120): If not, it is not received, then transmit the EDID information of the best resolution built in the audio and video extension transmitter (1) to the display device (10);

Step (S130): If it is received, it will be judged that the maximum resolution of the EDID information is 4K@60Hz, 4K@30Hz or 1080P@60Hz, and the maximum resolution will be noted;

Step (S140): Determine whether there is another set of EDID information; and

Step (S150): If yes, there is the next set of EDID, return to the step (S130) of "Judge whether the maximum resolution of this EDID is 4K@60Hz, 4K@30Hz or 1080P@60Hz, and note the maximum resolution"; if not, If there is no next set of EDID, then the EDID information with the maximum resolution noted in step (S130) is passed to the display device (10);

The structure, features and effects of the present invention are described in detail based on the embodiments shown in the drawings. However, the above descriptions are only preferred embodiments of the present invention, but the implementation scope of the present invention is not limited by the drawings. Modification changes that are consistent with the spirit of the present invention shall be included in the patent scope of the present invention as long as they are within the scope of equal effects.

1: Audio and video extension transmitter

2:Power port

3:Network port

4: Audio and video extension receiver

41:EDID reading software

5: Audio and video input port

6:Control circuit board

7:Judge the chip

71:EDID identification software

10:Display device

20:Image playback device

100:Audio and video transmission extension system

Claims (5)

An audio and video transmission extension system, characterized in that the audio and video transmission extension system (100) includes: An audio and video extension transmitter (1); A power connection port (2) for providing power to the audio-visual extension transmitter (1); At least one network connection port (3) for electrical connection between the audio and video extension transmitter (1) and the audio and video extension receiver (4) located at the remote end and connected to at least one display device (10); At least one audio-visual input port (5) can be used for electrical connection with the video playback device (20); A control circuit board (6), which is installed in the audio-visual extension transmitter (1) and is electrically connected to the power connection port (2), the network connection port (3) and the audio-visual input port (5); A judgment chip (7) is provided on the control circuit board (6) and is electrically connected to it. The judgment chip (7) is built with at least one EDID identification software (71). The EDID identification software (71) can The best supported resolution of the image playback device (20) is corresponding to the different display devices (10) connected at the same time. The audio and video transmission extension system according to claim 1, wherein the audio and video extension receiver (4) also has a built-in EDID reading software (41), and the EDID reading software (41) can read the electrically connected EDID information of the display device (10), and transmits EDID information with the best resolution of the display device (10) to the audio-visual extension transmitter (1). The audio and video transmission extension system according to claim 2, wherein the EDID identification software (71) of the audio and video extension transmitter (1) can receive the latest information of the display device (10) transmitted by the audio and video extension receiver (4). EDID information with the best resolution, and determine the number of audio-visual extension receivers (4) connected to the display device (10). The best resolution signal of the image playback device (20) is sent to the display device (10). The audio and video transmission extension system according to claim 3, wherein the resolution is 4K@60Hz, 4K@30Hz or 1080P@60Hz. The audio and video transmission extension system according to claim 1, wherein the audio and video input port (5) is a connection port that conforms to a high-definition multimedia (HDMI) interface or a digital video interface (Display Port) interface.

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