CN220511157U - Extender with signal generating function and doubling function - Google Patents
Extender with signal generating function and doubling function Download PDFInfo
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- CN220511157U CN220511157U CN202321889776.4U CN202321889776U CN220511157U CN 220511157 U CN220511157 U CN 220511157U CN 202321889776 U CN202321889776 U CN 202321889776U CN 220511157 U CN220511157 U CN 220511157U
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 7
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Abstract
The utility model relates to an extender with a signal generating function and a doubling function, which comprises a transmitter, a receiver and a network cable; the MCU circuit of the transmitter comprises a mode dialing key and a test image switching key, the mode dialing key is operated to switch the working mode, and the test image switching key is used to switch the test image; the transmitter is connected with the receiver through the network cable and is used for transmitting coded long-distance transmission signals. According to the scheme of the utility model, the problem that test images, test software or hardware equipment with various specifications are required to be prepared in advance in the test and debugging process is solved, and the compatibility of the output signal connected with the display equipment is improved through the double line conversion function.
Description
Technical Field
The utility model relates to the field of audio and video transmission. More particularly, the present utility model relates to an extender having a signal generating function and a doubling function.
Background
In the prior art, the best transmission distance of an HDMI (High Definition Multimedia Interface, high-definition multimedia interface) transmission cable is within 15m, and the transmission distance of an HDMI signal is more seriously lost as the transmission distance is more than 15 m. In practical use, the HDMI signal is often required to be transmitted to a place beyond several tens of meters, so as to prevent the HDMI signal from being lost too much, the current mainstream solution is realized by using an HDMI twisted pair extender based on an HDBaseT technology and a network cable, and the HDBaseT technology can transmit the HDMI signal, the RS232 signal, the infrared signal and the POC power together to a place at several tens of meters through one network cable.
In the prior art, the HDMI twisted pair extender transmits HDMI signals and test HDMI signals in a cable by connecting a transmitter to a computer, a television, or the like having an HDMI interface, and the computer, the television, or the like is used as a signal source to generate test images, which results in complexity and limitation of test and debugging; if normal transmission images of devices such as a computer and a television are directly adopted as a test source, test and debugging are not comprehensive enough; if the devices such as a computer, a television and the like store test images with various specifications in advance or install software capable of generating the test images, the devices need to be additionally prepared in advance, so that the test and the debugging are inconvenient; if source devices capable of providing images of different specifications, such as DVDs, set-top boxes, etc., are additionally prepared in advance for replacement in the process of performing test debugging, the test debugging is inconvenient. In addition, in the prior art, the HDMI twisted pair extender has no wire doubling function, and when the wire doubling function is needed, the wire doubling device is needed to be additionally connected, so that the applicability is limited, and the function is single.
Based on this, how to realize more convenient test debugging has positive significance.
Disclosure of Invention
In order to solve one or more of the above technical problems, the present utility model proposes to implement a self-contained signal generating function and a doubling function by operating a mode dialing key and a test image switching key, so that test and debugging are more convenient, and the present utility model has strong applicability and rich functions. To this end, the utility model provides a solution comprising: a transmitter, a receiver and a network cable; the transmitter comprises a video decoding doubling conversion signal generating circuit, an HDBaseT protocol encoding circuit, a transmitter MCU circuit and a transmitter power supply circuit; the receiver comprises an HDBaseT protocol decoding circuit, a video encoding circuit, a receiver MCU circuit and a receiver power supply circuit; the MCU circuit of the transmitter comprises a mode dialing key and a test image switching key, wherein the mode dialing key is used for switching the working mode, and the test image switching key is used for switching the test image; the transmitter is connected with the receiver through the network cable and is used for transmitting coded long-distance transmission signals.
In one embodiment, the video decoding doubling conversion signal generating circuit includes an HDMI input terminal, an HDMI output terminal, and an audio output terminal, the video decoding doubling conversion signal generating circuit is connected to the HDBaseT protocol encoding circuit for transmitting a decoding signal or a test signal, the HDBaseT protocol encoding circuit includes an infrared input terminal and an RS232 input terminal, the HDBaseT protocol encoding circuit is connected to the HDBaseT protocol decoding circuit through the network cable for transmitting an encoded remote transmission signal, the transmitter MCU circuit includes a transmitter LED and a transmitter RS232 control signal input terminal, and the transmitter MCU circuit is connected to the video decoding doubling conversion signal generating circuit and the HDBaseT protocol encoding circuit, respectively, for outputting a control signal and receiving a feedback signal, and the transmitter power circuit is used for powering the respective circuits.
In one embodiment, the HDBaseT protocol decoding circuit includes an infrared output terminal and an RS232 output terminal, the HDBaseT protocol decoding circuit is connected to the video encoding circuit for transmitting a separate decoding signal or a separate test signal, the video encoding circuit includes an HDMI remote output terminal and an audio remote output terminal, the receiver MCU circuit includes a receiver LED and a receiver RS232 control signal input terminal, the receiver MCU circuit is connected to the video encoding circuit and the HDBaseT protocol decoding circuit, respectively, for transmitting a control signal, and the receiver power supply circuit is used for supplying power to the respective circuits.
In one embodiment, the video decoding multiple line conversion signal generation circuit includes a GSV2002 chip.
In one embodiment, the transmitter MCU circuit and the receiver MCU circuit each comprise a GD coretex M3 core MCU, which is a 32 bit MCU.
In one embodiment, the HDBaseT protocol encoding circuit includes a VS100TX-A0 chip and the HDBaseT protocol decoding circuit includes a VS100RX-A0 chip.
In one embodiment, the video encoding circuit includes an MS9331 chip.
According to the scheme of the utility model, the operation mode dial key is used for switching the working mode, the operation test image switching key is used for switching the test image, the operation mode dial key is used for directly and not processing HDMI input signals, HDMI input signal doubling processing and testing through the self-contained test image, the compatibility of the output signal connected with the display device is improved, the problem that test images, test software or hardware devices with various specifications are required to be prepared in advance in the test and debugging process is solved, the test and debugging work is greatly facilitated, the applicability is strong, and the functions are rich.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present utility model will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the utility model are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 is a schematic structural diagram schematically illustrating an extender solution according to an embodiment of the present utility model;
fig. 2 is a flowchart schematically illustrating a transmitter key operation according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view schematically showing an extender technical solution according to an embodiment of the present utility model. As shown in fig. 1, the upper half of fig. 1 is a transmitter, and the lower half is a receiver, which are connected by a network cable. It should be noted that the network cables are six types of network cables.
The transmitter comprises a video decoding doubling conversion signal generating circuit, an HDBaseT protocol encoding circuit, a transmitter MCU (Microcontroller Unit, micro control unit) circuit and a transmitter power supply circuit, wherein all modules of the transmitter are mutually matched for processing input signals and transmitting the signals in a long distance.
Further, the video decoding double line conversion signal generation circuit includes an HDMI input terminal for receiving the HDMI input signal, an HDMI output terminal for directly outputting the HDMI output signal, and an audio output terminal for separately outputting the audio signal after the de-embedding. The video decoding double-line conversion signal generating circuit is connected with the HDBaseT protocol coding circuit and used for transmitting decoding signals or test signals in different working modes. The HDBaseT protocol coding circuit comprises an infrared input terminal and an RS232 input terminal, wherein the infrared input terminal is used for receiving an infrared input signal, the RS232 input terminal is used for receiving an RS232 input signal, the HDBaseT protocol coding circuit is used for carrying out HDBaseT protocol coding on the infrared input signal, the RS232 input signal and a signal transmitted by the video decoding doubling conversion signal generating circuit to generate a coded long-distance transmission signal, the HDBaseT protocol coding circuit is connected with the HDBaseT protocol decoding circuit through a network cable and used for transmitting the coded long-distance transmission signal, the infrared input signal, the RS232 input signal and the signal transmitted by the video decoding doubling conversion signal generating circuit are transmitted on the same network cable, no additional wiring is needed, and the signal is transmitted through the network cable and supports a signal with the distance of up to 100 meters. The transmitter MCU circuit is respectively connected with the video decoding doubling conversion signal generating circuit and the HDBaseT protocol encoding circuit and is used for outputting control signals and receiving feedback signals. The transmitter power supply circuit is used to power the individual circuits.
The transmitter MCU circuit further comprises a transmitter LED and a transmitter RS232 control signal input terminal, wherein the transmitter LED is used for displaying the working state of the transmitter, the transmitter LED lamp is used for indicating that the transmitter is in the working state, the transmitter LED lamp is used for indicating that the transmitter is in the power-off state, the color of the transmitter LED lamp is green for indicating that the transmitter is in the through mode, the color of the transmitter LED lamp is yellow for indicating that the transmitter is in the double-line mode, and the color of the transmitter LED lamp is red for indicating that the transmitter is in the test mode. In some embodiments, the transmitter RS232 control signal input terminal is connected to a computer for setting up the relevant tests and controlling the switching of the transmitter.
It should be noted that, the video decoding circuit includes a GSV2002 chip, and the method of using the GSV2002 chip is well known in the art, and is not described herein. The GSV2002 chip has a function of de-embedding an audio signal.
The receiver comprises an HDBaseT protocol decoding circuit, a video encoding circuit, a receiver MCU circuit and a receiver power supply circuit, wherein each module of the receiver is mutually matched for receiving signals transmitted in a long distance, processing the signals and outputting the processed signals.
Further, the HDBaseT protocol decoding circuit is configured to perform HDBaseT protocol decoding on the encoded remote transmission signal, where the HDBaseT protocol decoding circuit includes an infrared output terminal and an RS232 output terminal, the infrared output terminal is configured to output an infrared output signal, the RS232 output terminal is configured to output an RS232 output signal, and the HDBaseT protocol decoding circuit is connected to the video encoding circuit and is configured to transmit the separate decoded signal or the separate test signal. The video coding circuit comprises an HDMI long-distance output terminal and an audio long-distance output terminal, wherein the HDMI long-distance output terminal is used for outputting long-distance HDMI signals, the video coding circuit is used for de-embedding audio signals in separation decoding signals or separation testing signals, and the audio long-distance output terminal is used for outputting the audio signals after de-embedding.
The receiver MCU circuit comprises a receiver LED and a receiver RS232 control signal input terminal, and is respectively connected with the video coding circuit and the HDBaseT protocol decoding circuit and used for outputting control signals and receiving feedback signals. The receiver LED is used to display the operational status of the receiver, and as an example, the receiver LED light is on to indicate that the receiver is in an operational status and the receiver LED light is off to indicate that the receiver is in a shutdown status. The receiver RS232 control signal input terminal is connected to a computer for controlling the operational state of the receiver, as exemplified by the control of the receiver switch.
It should be noted that, the transmitter MCU circuit and the receiver MCU circuit each include a GD coretex M3 core MCU, which is a 32-bit MCU. The method of using the GD coretex M3 core MCU is well known to those skilled in the art and is not described in detail herein. It should be noted that the HDBaseT protocol encoding circuit includes a VS100TX-A0 chip, and the HDBaseT protocol decoding circuit includes a VS100RX-A0 chip. The use of the VS100TX-A0 chip and the VS100RX-A0 chip is well known to those skilled in the art and will not be described in detail herein. The video encoding circuit includes an MS9331 chip, and the method of using the MS9331 chip is well known to those skilled in the art and is not described herein.
The receiver power supply circuit is used for power supply of each circuit and internal power supply management. It should be noted that, the transmitter power supply circuit and the receiver power supply circuit both support POC wide voltage power supply of 12V to 48V, and only one end is required to have 12V to 48V power supply to realize normal operation of both ends. POC power is well known to those skilled in the art and is not described in detail herein.
The transmitter MCU circuit comprises a mode dialing key and a test image switching key, wherein the mode dialing key is used for switching the working mode of the transmitter and transmitting signals to the video decoding doubling conversion signal generating circuit through the transmitter MCU circuit, the transmitter MCU circuit is used for daily normal use and test debugging, and the test image switching key is used for switching test images through the signal generating circuit in the video decoding doubling conversion signal generating circuit. The video decoding double-line conversion signal generation circuit may be used for video decoding, double-line conversion or signal generation alone, or may be used for two or three of video decoding, double-line conversion and signal generation functions.
It should be noted that, the signal generating circuit includes a GSV2002 chip, and the method of using the GSV2002 chip is well known in the art and is not described herein.
Fig. 2 is a flowchart schematically illustrating a transmitter key operation according to an embodiment of the present utility model. As shown in fig. 2, the operation modes of the mode dial key for switching include: a through mode, a double line mode and a test mode, wherein the through mode is used for outputting a signal synchronous with the HDMI input signal by using the EDID of the receiving end; the power line mode is used for using EDID in the extender and when the HDMI input signal is 4K@60 4:4:4, the automatic power line is 1080P@60:4:4:4 and output, and it is noted that the power line mode can support the power line conversion function of more resolutions later and is used for being compatible with displays with different resolutions. Note that EDID (Extended Display Identification Data), i.e. the extended display capability identification, refers to the data of the screen resolution, including the manufacturer name and serial number.
It should be noted that, the multiple line conversion circuit includes a GSV2002 chip, and the method of using the GSV2002 chip is well known in the art and is not described herein.
The test image switching key is used for switching test images in a test mode, the test images comprise images with different resolutions, and it is to be noted that short pressing of the test image switching key switches the different test images generated by the signal generating circuit in the video decoding doubling conversion signal generating circuit, and long pressing of the test image switching key switches the test images with different resolutions generated by the signal generating circuit in the video decoding doubling conversion signal generating circuit.
It should be noted that, the types of the devices such as the video decoding multiple line conversion signal generating circuit, the transmitter MCU circuit, the receiver MCU circuit, and the HDBaseT protocol encoding circuit in the above circuits are merely exemplary and not limiting, and those skilled in the art may select other types of products according to actual needs to achieve the same functions. Peripheral circuits corresponding to products based on other models also belong to the protection scope of the utility model.
In summary, the operation mode dial key is used for switching the working mode and the operation test image switching key is used for switching the test image, and the operation mode dial key is used for directly and not processing the HDMI input signal, processing the HDMI input signal by multiple lines and generating the self-contained test image, so that the compatibility of the output signal to the display device is improved, and the problem that test images or test software or hardware devices with various specifications are required to be prepared in advance in the test and debugging process is solved.
In the foregoing description of the present specification, the terms "fixed," "mounted," "connected," or "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, in terms of the term "coupled," it may be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other. Therefore, unless otherwise specifically defined in the specification, a person skilled in the art can understand the specific meaning of the above terms in the present utility model according to the specific circumstances.
In addition, the terms "first" or "second" and the like used in the present specification to refer to the numbers or ordinal numbers are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present specification, the meaning of "plurality" means at least two, for example, two, three or more, etc., unless explicitly defined otherwise.
While various embodiments of the present utility model have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Many modifications, changes, and substitutions will now occur to those skilled in the art without departing from the spirit and scope of the utility model. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. The appended claims are intended to define the scope of the utility model and to cover such modular compositions, equivalents, or alternatives falling within the scope of the claims.
Claims (7)
1. An extender with signal generating and doubling functions, comprising:
a transmitter, a receiver and a network cable;
the transmitter comprises a video decoding doubling conversion signal generating circuit, an HDBaseT protocol encoding circuit, a transmitter MCU circuit and a transmitter power supply circuit;
the receiver comprises an HDBaseT protocol decoding circuit, a video encoding circuit, a receiver MCU circuit and a receiver power supply circuit;
the MCU circuit of the transmitter comprises a mode dialing key and a test image switching key, wherein the mode dialing key is used for switching the working mode, and the test image switching key is used for switching the test image;
the transmitter is connected with the receiver through the network cable and is used for transmitting coded long-distance transmission signals.
2. The extender with signal generating and doubling functions according to claim 1, wherein the video decoding doubling conversion signal generating circuit comprises an HDMI input terminal, an HDMI output terminal and an audio output terminal, the video decoding doubling conversion signal generating circuit is connected with the HDBaseT protocol encoding circuit for transmitting a decoding signal or a test signal, the HDBaseT protocol encoding circuit comprises an infrared input terminal and an RS232 input terminal, the HDBaseT protocol encoding circuit is connected with the HDBaseT protocol decoding circuit through the network cable for transmitting an encoded remote transmission signal, the transmitter MCU circuit comprises a transmitter LED and a transmitter RS232 control signal input terminal, the transmitter MCU circuit is connected with the video decoding doubling conversion signal generating circuit and the HDBaseT protocol encoding circuit, respectively, for outputting a control signal and receiving a feedback signal, and the transmitter power supply circuit is used for supplying power to each circuit.
3. The extender with signal generating and doubling functions according to claim 1, wherein the HDBaseT protocol decoding circuit comprises an infrared output terminal and an RS232 output terminal, the HDBaseT protocol decoding circuit is connected to the video encoding circuit for transmitting separate decoding signals or separate test signals, the video encoding circuit comprises an HDMI remote output terminal and an audio remote output terminal, the receiver MCU circuit comprises a receiver LED and a receiver RS232 control signal input terminal, the receiver MCU circuit is connected to the video encoding circuit and the HDBaseT protocol decoding circuit, respectively, for transmitting control signals, and the receiver power supply circuit is used for supplying power to the respective circuits.
4. The extender with signal generation and doubling functions of claim 1, wherein the video decoding doubling conversion signal generation circuit comprises a GSV2002 chip.
5. The extender with signal generating and doubling functions according to claim 1, wherein the transmitter MCU circuit and the receiver MCU circuit each comprise a GD coretex M3 core MCU, which is a 32 bit MCU.
6. The extender with signal generating and doubling functions according to claim 1, wherein the HDBaseT protocol encoding circuit comprises a VS100TX-A0 chip and the HDBaseT protocol decoding circuit comprises a VS100RX-A0 chip.
7. The extender with signal generating and doubling functions of claim 1, wherein the video coding circuit comprises an MS9331 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321889776.4U CN220511157U (en) | 2023-07-18 | 2023-07-18 | Extender with signal generating function and doubling function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321889776.4U CN220511157U (en) | 2023-07-18 | 2023-07-18 | Extender with signal generating function and doubling function |
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| Publication Number | Publication Date |
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| CN220511157U true CN220511157U (en) | 2024-02-20 |
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| CN202321889776.4U Active CN220511157U (en) | 2023-07-18 | 2023-07-18 | Extender with signal generating function and doubling function |
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- 2023-07-18 CN CN202321889776.4U patent/CN220511157U/en active Active
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