CN212163492U - Multi-input single-output signal converter - Google Patents
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- CN212163492U CN212163492U CN202020644123.XU CN202020644123U CN212163492U CN 212163492 U CN212163492 U CN 212163492U CN 202020644123 U CN202020644123 U CN 202020644123U CN 212163492 U CN212163492 U CN 212163492U
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Abstract
The utility model is suitable for the HDMI technical field, in particular to a multi-in single-out signal converter, which comprises a power module, a switch switching module, a channel selection module, an HDMI output interface, a plurality of input interfaces with different types and a plurality of signal conversion modules, a display device outputs EDID signals to each input interface, each computer end device outputs corresponding DP signals to the signal conversion module according to the EDID signals, the signal conversion module converts the input DP signals into DP/HDMI signals and outputs the DP/HDMI signals to the input end corresponding to the switch switching module, the switch switching module correspondingly opens a corresponding channel according to the channel selection signals of the channel selection module so as to output the HDMI signals output by the corresponding signal conversion module to the HDMI output interface and the display device, thereby matching with a plurality of signal inputs and conversions and realizing multi-in single-out, the diversity and compatibility of the HDMI converter are improved.
Description
Technical Field
The utility model belongs to the technical field of the HDMI, especially, relate to a signal converter singly goes out in advancing more.
Background
With the continuous development of science and technology, various electronic products such as desktop computers, notebook computers, liquid crystal televisions, plasma televisions and the like are more and more popular, and when the electronic devices are used, the electronic devices are generally required to be tightly combined to meet more experience requirements. The HDMI interface is a digital interface integrating video and audio, can transmit high-definition video and high-fidelity audio signals simultaneously, has the highest output resolution/refresh rate of 3840 × 2160/60Hz., and can convert other signals (such as DP1.2 signals, HDMI2.0 signals, audio signals and the like) into HDMI signals through an HDMI conversion line, so that people can obtain the requirement of high-definition video conversion. However, the conventional HDMI converter has a single function, generally has only one signal conversion function, and is difficult to meet various requirements of people.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a signal converter singly goes out more, aims at solving traditional HDMI converter and has the problem of function singleness.
The embodiment of the utility model provides a first aspect provides a many income single play signal converter, and many income single play signal converter includes power module, switch switching module, passageway selection module, HDMI output interface, a plurality of different input interface of type and a plurality of signal conversion module;
each input interface is connected with the input end of the switch switching module through one signal conversion module, the output end of the switch switching module is connected with the HDMI output interface, the controlled end of the switch switching module is connected with the control end of the channel selection module, and the power supply end of the power supply module is electrically connected with the switch switching module, the channel selection module and the plurality of signal conversion modules respectively;
each input interface is used for being connected with a computer end device;
the HDMI output interface is used for connecting display equipment and feeding back EDID signals output by the display equipment to each input interface through the switch switching module when the display equipment is connected, so that each computer-side equipment outputs corresponding DP signals to the corresponding input interfaces according to the EDID signals;
each signal conversion module is used for respectively performing DP/HDMI conversion on the DP signals output by each input interface and then outputting the DP signals to the corresponding input end of the switch switching module;
the switch switching module is configured to open a corresponding channel according to a channel selection signal output by the channel selection module, so as to output an HDMI signal output by one of the signal conversion modules to the HDMI output interface and the display device.
In one embodiment, the plurality of input interfaces include a Type-C input interface, a Mini-DP input interface, and a DP input interface, the plurality of signal conversion modules include a first signal conversion module, a second signal conversion module, and a third signal conversion module, the Type-C input interface is connected to the first input end of the switch switching module through the first signal conversion module, the Mini-DP input interface is connected to the second input end of the switch switching module through the second signal conversion module, and the DP input interface is connected to the third input end of the switch switching module through the third signal conversion module;
the Type-C input interface, the Mini-DP input interface and the DP input interface are used for being respectively connected with a computer end device;
the first signal conversion module, the second signal conversion module and the third signal conversion module are configured to perform DP/HDMI conversion on the DP signal output by the Type-C input interface, the DP signal output by the Mini-DP input interface and the DP signal output by the DP input interface respectively, and then output the DP signal to the input end corresponding to the switch switching module.
In one embodiment, the multi-input single-output signal converter further includes an HDMI input interface, and the HDMI input interface is connected to the input terminal of the switch switching module;
the HDMI input interface is used for connecting a computer end device, feeding EDID signals fed back by the display device back to the computer end device, and outputting HDMI signals output by the computer end device according to the EDID signals to the switch switching module.
In one embodiment, the multiple-input single-output signal converter further comprises a fourth signal conversion module, wherein the fourth signal conversion module is connected between the Type-C input interface and the first signal conversion module;
and the fourth signal conversion module is used for carrying out protocol communication with the computer end equipment connected with the Type-C input interface, and carrying out signal alternative conversion on a DP signal output by the computer end equipment connected with the Type-C input interface and outputting the DP signal to the first signal conversion module.
In one embodiment, the fourth signal conversion module comprises a protocol chip and an alternate mode multiplexer, and the protocol chip and the alternate mode multiplexer are both connected between the Type-C input interface and the first signal conversion module;
the protocol chip is used for feeding the EDID signal back to the Type-C input interface and the correspondingly connected computer end equipment so that the computer end equipment can output a DP signal to the Type-C input interface;
and the alternative mode multiplexer is used for performing signal alternative conversion on the DP signal input by the Type-C input interface and outputting the DP signal to the first signal conversion module.
In one embodiment, the channel selection module comprises a key module and a controller, and the controller is electrically connected with the key module and the switch switching module respectively;
the key module is used for outputting a corresponding trigger signal to the controller according to a touch instruction of a user;
the controller is configured to output a corresponding channel selection signal to the switch switching module according to the trigger signal, so as to control the channel corresponding to the switch switching module to be switched on.
In one embodiment, the multi-input single-output signal converter further comprises a signal amplification module, and the signal amplification module is connected between the output end of the switch switching module and the HDMI output interface;
the signal amplification module is used for amplifying the HDMI signals output by the switch switching module and outputting the signals to the HDMI output interface.
In one embodiment, the signal amplification module is a signal amplification chip.
In one embodiment, the first signal conversion module is a first DP/HDMI signal converter, the second signal conversion module is a second DP/HDMI signal converter, and the third signal conversion module is a third DP/HDMI signal converter.
In one embodiment, the power module includes a power interface for inputting a DC power and a DC/DC converter for performing DC/DC conversion on the DC power input by the power interface, the power interface is electrically connected to a power input terminal of the DC/DC converter, and a power output terminal of the DC/DC converter is a power supply terminal of the power module.
The utility model discloses an adopt the power module, the switch module, the passageway selection module, HDMI output interface, the different input interface of a plurality of types and a plurality of signal conversion module component are into singly going out signal converter more, when HDMI output interface connects the display device, the display device outputs EDID signal and feeds back to each input interface through HDMI output interface, switch module and each signal conversion module, the computer end equipment that each input interface connects exports corresponding DP signal to signal conversion module according to the EDID signal of display device, signal conversion module carries out DP/HDMI signal conversion with the DP signal of input, and export to the input that switch module corresponds, switch module opens corresponding passageway according to the passageway selection signal correspondence of passageway selection module, in order to export the HDMI signal of corresponding signal conversion module output to HDMI output interface and display device, therefore, various signal inputs and conversions are matched, multiple inputs and single outputs are realized, and the diversity and the compatibility of the HDMI converter are improved.
Drawings
Fig. 1 is a schematic diagram of a first structure of a multiple-input single-output signal converter according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a second structure of a multiple-input single-output signal converter according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a third structure of a multiple-input single-output signal converter according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a power module according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an alternative mode multiplexer according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a protocol chip according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a first signal conversion module according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a controller according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a switch switching module according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a signal amplification chip according to an embodiment of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Furthermore, the terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The embodiment of the utility model provides a first aspect provides a many income single play signal converter.
As shown in fig. 1, fig. 1 is a schematic diagram of a first module structure of a multiple-input single-output signal converter according to an embodiment of the present invention, in this embodiment, the multiple-input single-output signal converter includes a power module 40, a switch switching module 10, a channel selection module 20, an HDMI output interface 30, a plurality of input interfaces of different types, and a plurality of signal conversion modules;
each input interface is connected with the input end of the switch switching module 10 through a signal conversion module, the output end of the switch switching module 10 is connected with the HDMI output interface 30, the controlled end of the switch switching module 10 is connected with the control end of the channel selection module 20, and the power ends of the power supply module 40 are electrically connected with the switch switching module 10, the channel selection module 20 and the plurality of signal conversion modules respectively;
each input interface is used for being connected with a computer end device;
the HDMI output interface 30 is used for connecting the display device, and feeding back the EDID signal output by the display device to each input interface through the switch switching module 10 when the display device is connected, so that each computer-side device outputs a corresponding DP signal to a corresponding input interface according to the EDID signal;
each signal conversion module is configured to perform DP/HDMI conversion on the DP signal output by each input interface, and output the DP signal to the corresponding input end of the switch switching module 10;
the switch switching module 10 is configured to open a corresponding channel according to the channel selection signal output by the channel selection module 20, so as to output the HDMI signal output by one of the signal conversion modules to the HDMI output interface 30 and the display device.
In this embodiment, the power module 40 provides operating power for each operating module, the power module 40 may be an independent DC power source, such as a storage battery, or a power conversion module, in an embodiment, as shown in fig. 4, the power module 40 includes a power interface 41 for inputting a DC power source and a DC/DC converter 41 for performing DC/DC conversion on the DC power source input by the power interface 41, the power interface 41 is electrically connected to a power input terminal of the DC/DC converter 41, a power output terminal of the DC/DC converter 41 is a power supply terminal of the power module 40, the power interface 41 may be Type-A, Type-B, Type-C, Mini-A, Mini-B, Micro-a and Micro-B, or Light interface, and the like, which are specifically selected according to requirements, the number and the Type of the DC/DC converter 41 may be selectively set according to voltage requirements of each module, it may be a boost converter or a buck converter, and is not particularly limited.
The input interfaces may be Type-C interfaces, Mini-DP interfaces, DP1.4 interfaces, etc., the specific types are not limited, and may be connected to a computer device, such as a host, a tablet or a notebook, respectively, and perform protocol communication, audio/video signal decoding, TMDS signal processing, etc., the HDMI output interface 30 is connected to a Display device, such as a Display screen, a Display or other Display devices, when the HDMI output interface 30 is connected to the Display device, the Display device feeds back and outputs an EDID (Extended Display identification data) signal, the EDID signal includes various information of the currently connected Display device, including supplier information, maximum image size, color setting, manufacturer presetting, frequency range limitation, and character strings of Display name and serial number, and the EDID signal is fed back to each input port and the computer device connected to the HDMI input port through the HDMI output interface 30, the switch switching module 10, each signal conversion module, and carry on the agreement with the computer end apparatus to communicate, after communicating successfully, every computer end apparatus sends out the DP signal that the display device needs according to EDID signal, DP signal carries on DP/HDMI signal conversion and outputs HDMI signal to the switching module 10 of the switch through the signal conversion module, the switching module 10 opens the correspondent channel according to the channel selection signal that the channel selection module 20 outputs, namely connect correspondent input end and carry-out terminal, in order to output HDMI signal that one of them signal conversion module outputs to HDMI output interface 30, the signal converter of single-out can realize the signal is entered and correspond to the output of one of them signal according to the demand more, can adapt and connect multiple computer end apparatuses, have improved diversity and compatibility of the HDMI converter.
The switch switching module 10 may employ a multiplexer switch or a switch switching chip, and in one embodiment, the switch switching module 10 is a retiming switch chip that supports multiple inputs and single outputs, and is compliant with the HDMI2.0b specification and backward compatible with the HDMI1.4 and DVI specifications.
The channel selection module 20 may be a key module 20B, a touch module, etc., as shown in fig. 3, in an embodiment, the channel selection module 20 includes a key module 20B and a controller 20A, and the controller 20A is electrically connected to the key module 20B and the switch switching module 10, respectively;
the key module 20B is configured to output a corresponding trigger signal to the controller 20A according to a touch instruction of a user;
the controller 20A is configured to output a corresponding channel selection signal to the switch switching module 10 according to the trigger signal, so as to control the channel corresponding to the switch switching module 10 to be turned on.
The key module 20B may include at least one key switch, the controller 20A outputs a corresponding channel selection Signal to the switch switching module 10 according to trigger signals of different key switches or trigger signals output according to different key times of the unified key switch, the Specific structure of the key module 20B is not limited, the controller 20A may be a Central Processing Unit (CPU), or may be other general purpose processors, Digital Signal Processors (DSP), Application Specific Integrated Circuits (ASIC), ready-made Programmable Gate arrays (FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, as shown in fig. 8, in an embodiment, the controller 20A is an MCU chip, and the model is IT6350, and the IT6350 identifies the trigger signal input by the key module 20B and controls the corresponding channel of the switch switching module 10 to be turned on, so as to realize that the audio/video signal input by the designated key module is transmitted to the display for actual display.
The utility model adopts the power module 40, the switch switching module 10, the channel selection module 20, the HDMI output interface 30, the input interfaces with different types and the signal conversion modules to form a multi-input single-output signal converter, when the HDMI output interface 30 is connected with the display device, the display device outputs EDID signals and feeds back the EDID signals to each input interface through the HDMI output interface 30, the switch switching module 10 and each signal conversion module, the computer end equipment connected with each input interface outputs corresponding DP signals to the signal conversion module according to the EDID signals of the display device, the signal conversion module converts the input DP signals into DP/HDMI signals and outputs the DP/HDMI signals to the input end corresponding to the switch switching module 10, the switch switching module 10 correspondingly opens a corresponding channel according to the channel selection signals of the channel selection module 20 so as to output the HDMI signals output by the corresponding signal conversion modules to the HDMI output interface 30 and the display device, therefore, various signal inputs and conversions are matched, multiple inputs and single outputs are realized, and the diversity and the compatibility of the HDMI converter are improved.
As shown in fig. 2, in an embodiment, the plurality of input interfaces includes a Type-C input interface 11A, Mini-DP input interface 12A and a DP input interface 13A, the plurality of signal conversion modules includes a first signal conversion module 21, a second signal conversion module 22 and a third signal conversion module 23, the Type-C input interface 11A is connected to a first input terminal of the switch switching module 10 through the first signal conversion module 21, the Mini-DP input interface 12A is connected to a second input terminal of the switch switching module 10 through the second signal conversion module 22, and the DP input interface 13A is connected to a third input terminal of the switch switching module 10 through the third signal conversion module 23;
the Type-C input interface 11A, Mini-DP input interface 12A and the DP input interface 13A are used for being respectively connected with a computer end device;
the first signal conversion module 21, the second signal conversion module 22, and the third signal conversion module 23 are configured to perform DP/HDMI conversion on the DP signal output by the Type-C input interface 11A, the DP signal output by the Mini-DP input interface 12A, and the DP signal output by the DP input interface 13A, respectively, and then output the DP signal to the corresponding input end of the switch switching module 10.
In this embodiment, the input interfaces respectively include a Type-C input interface 11A, Mini-DP input interface 12A and a DP input interface 13A, and obtain EDID signals fed back by the display device at the computer device, and feed back the DP signals output by the computer device to the corresponding signal conversion modules, wherein the first signal conversion module 21, the second signal conversion module 22, and the third signal conversion module 23 are used for DP/HDMI conversion and output to the input end of the switch switching module 10, the first signal conversion module 21, the second signal conversion module 22, and the third signal conversion module 23 may be DP/HDMI converters, and the specific types are not limited, in one embodiment, the first signal conversion module 21 is a first DP/HDMI signal converter, the second signal conversion module 22 is a second DP/HDMI signal converter, and the third signal conversion module 23 is a third DP/HDMI signal converter, as shown in fig. 7, the DP/HDMI signal converters are all IT6563FN, IT6563FN built-in HDMI transmitters, which conform to HDMI2.0, HDCP 1.4/2.2, and are backward compatible with DVI 1.0 specification, and the HDMI transmitters can support up to 36-bit (12-bit/color) color depth, ensure transmission of high-quality uncompressed video content, and support 8-channel digital audio and HBR audio. The HDMI connector outputs 5V power to the display device through the switch switching module 10 and the HDMI output interface 30, after the display device receives 5V power, the display device detects the high power and outputs a high power (TX _ HPD) to the IT6563FN, the IT6563FN transmits an RX _ HPD signal to the switch switching module 10 to perform protocol communication after receiving the high power, meanwhile, the display device outputs EDID signals to each input port, each computer-side device outputs DP signals according to the requirements of the display device and converts the DP signals into HDMI signals through the IT6563FN, converts the Type-CRX/TX data signal speed of 10Gbps/mini DP1.2 data signal speed of 21.6Gbps into HDMI2.0 data signals, and transmits the HDMI signals to the display device through a channel corresponding to the switch switching module 10.
Referring to fig. 2, in an embodiment, the multiple-input single-output signal converter further includes an HDMI input interface 14, where the HDMI input interface 14 is connected to an input terminal of the switch switching module 10;
the HDMI input interface 14 is configured to connect to a computer-side device, feed back the EDID signal fed back by the display device to the computer-side device, and output the HDMI signal output by the computer-side device according to the EDID signal to the switch switching module 10.
IN this embodiment, the multi-input single-output signal converter further supports HDMI signal input and output, the HDMI input interface 14, the first signal conversion module 21, the second signal conversion module 22, and the third signal conversion module 23 are respectively connected to the switch switching module 10 to form a four-input one-output structure, when four computer devices are all connected, the switch switching module 10 can be switched to one of the computer devices and the display device to perform audio and video signal transmission, so as to satisfy the switch switching operation mode, and simultaneously, when one of the computer devices is inserted into the input port, the switch switching module 10 can be switched to the computer device and the display device to realize the post-insertion post-display operation mode, IN one embodiment, as shown IN fig. 9, the switch switching module 10 is a retiming switch, and has a model number of IT6635, and IT6635 is a retiming switch from 4IN to 1OUT, and supports a maximum signal rate of 6 Gbps/channel, the device conforms to HDMI2.0b specification and is backward compatible with HDMI1.4 and DVI specifications, and four input ports and one output port both support HDMI 2.0.
As shown in fig. 3, in one embodiment, the multiple-input single-output signal converter further includes a fourth signal conversion module 50, and the fourth signal conversion module 50 is connected between the Type-C input interface 11A and the first signal conversion module 21;
the fourth signal conversion module 50 is configured to perform protocol communication with the computer-side device connected to the Type-C input interface 11A, and perform signal alternation conversion on a DP signal output by the computer-side device connected to the Type-C input interface 11A and output the DP signal to the first signal conversion module 21.
In this embodiment, in order to implement protocol matching of a computer-side device connected to the Type-C input interface 11A, a fourth signal conversion module 50 is further disposed at the Type-C input interface 11A for protocol communication and signal alternation to ensure that both the positive and negative insertion of the Type-C interface can work normally, in one embodiment, the fourth signal conversion module 50 includes a protocol chip 51 and an alternation pattern multiplexer 52, and the protocol chip 51 and the alternation pattern multiplexer 52 are both connected between the Type-C input interface 11A and the first signal conversion module 21;
the protocol chip 51 is configured to feed back the EDID signal to the Type-C input interface 11A and the computer-side device connected correspondingly, so that the computer-side device outputs a DP signal to the Type-C input interface 11A;
an alternate mode multiplexer 52 for performing signal alternate conversion on the DP signal inputted from the Type-C input interface 11A, and output to the first signal conversion module 21, the Type-C input interface 11A is connected to the computer device, and is connected with the first signal conversion module 21 through the protocol chip 51, the computer end device performs protocol communication with the protocol chip 51, after the communication is successful, the computer end device will output video/audio signals, and the alternating mode multiplexer 52 performs signal alternating conversion to realize normal operation of both positive and negative insertion of the Type-C interface, the DP signal after the alternating mode multiplexer 52 performs the DP/HDMI signal conversion after being output to the first signal conversion module 21, as shown in fig. 5 and 6, in one embodiment, protocol chip 51 is model number VL170 and alternate mode multiplexer 52 is model number FL 7102.
As shown in fig. 3, in order to improve the display effect and match the more remote display device, in one embodiment, the multiple-input single-output signal converter further includes a signal amplifying module 60, and the signal amplifying module 60 is connected between the output terminal of the switch switching module 10 and the HDMI output interface 30;
the signal amplifying module 60 is configured to amplify the signal of the HDMI signal output by the switch switching module 10 and output the amplified signal to the HDMI output interface 30, where the signal amplifying module 60 may be an amplifier or a signal amplifying chip, and in one embodiment, the signal amplifying module 60 is a signal amplifying chip, as shown in fig. 10, and in one embodiment, the model of the signal amplifying chip is PS 8409.
The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A multi-input single-output signal converter is characterized by comprising a power supply module, a switch switching module, a channel selection module, an HDMI output interface, a plurality of input interfaces of different types and a plurality of signal conversion modules;
each input interface is connected with the input end of the switch switching module through one signal conversion module, the output end of the switch switching module is connected with the HDMI output interface, the controlled end of the switch switching module is connected with the control end of the channel selection module, and the power supply end of the power supply module is electrically connected with the switch switching module, the channel selection module and the plurality of signal conversion modules respectively;
each input interface is used for being connected with a computer end device;
the HDMI output interface is used for connecting display equipment and feeding back EDID signals output by the display equipment to each input interface through the switch switching module when the display equipment is connected, so that each computer-side equipment outputs corresponding DP signals to the corresponding input interfaces according to the EDID signals;
each signal conversion module is used for respectively performing DP/HDMI conversion on the DP signals output by each input interface and then outputting the DP signals to the corresponding input end of the switch switching module;
the switch switching module is configured to open a corresponding channel according to a channel selection signal output by the channel selection module, so as to output an HDMI signal output by one of the signal conversion modules to the HDMI output interface and the display device.
2. The multiple-input single-output signal converter according to claim 1, wherein the plurality of input interfaces include a Type-C input interface, a Mini-DP input interface, and a DP input interface, the plurality of signal conversion modules include a first signal conversion module, a second signal conversion module, and a third signal conversion module, the Type-C input interface is connected to the first input terminal of the switch switching module through the first signal conversion module, the Mini-DP input interface is connected to the second input terminal of the switch switching module through the second signal conversion module, and the DP input interface is connected to the third input terminal of the switch switching module through the third signal conversion module;
the Type-C input interface, the Mini-DP input interface and the DP input interface are used for being respectively connected with a computer end device;
the first signal conversion module, the second signal conversion module and the third signal conversion module are configured to perform DP/HDMI conversion on the DP signal output by the Type-C input interface, the DP signal output by the Mini-DP input interface and the DP signal output by the DP input interface respectively, and then output the DP signal to the input end corresponding to the switch switching module.
3. The multiple-input single-output signal converter according to claim 1, wherein the multiple-input single-output signal converter further comprises an HDMI input interface, the HDMI input interface being connected to an input of the switch switching module;
the HDMI input interface is used for connecting a computer end device, feeding EDID signals fed back by the display device back to the computer end device, and outputting HDMI signals output by the computer end device according to the EDID signals to the switch switching module.
4. The multiple-input single-output signal converter of claim 2, further comprising a fourth signal conversion module connected between the Type-C input interface and the first signal conversion module;
and the fourth signal conversion module is used for carrying out protocol communication with the computer end equipment connected with the Type-C input interface, and carrying out signal alternative conversion on a DP signal output by the computer end equipment connected with the Type-C input interface and outputting the DP signal to the first signal conversion module.
5. The multiple-input single-output signal converter of claim 4, wherein the fourth signal conversion module comprises a protocol chip and an alternate mode multiplexer, both the protocol chip and the alternate mode multiplexer connected between the Type-C input interface and the first signal conversion module;
the protocol chip is used for feeding the EDID signal back to the Type-C input interface and the correspondingly connected computer end equipment so that the computer end equipment can output a DP signal to the Type-C input interface;
and the alternative mode multiplexer is used for performing signal alternative conversion on the DP signal input by the Type-C input interface and outputting the DP signal to the first signal conversion module.
6. The multiple-input single-output signal converter according to claim 1, wherein the channel selection module comprises a key module and a controller, and the controller is electrically connected to the key module and the switch switching module respectively;
the key module is used for outputting a corresponding trigger signal to the controller according to a touch instruction of a user;
the controller is configured to output a corresponding channel selection signal to the switch switching module according to the trigger signal, so as to control the channel corresponding to the switch switching module to be switched on.
7. The multiple-input single-output signal converter according to claim 1, further comprising a signal amplification module connected between an output of the switch switching module and the HDMI output interface;
the signal amplification module is used for amplifying the HDMI signals output by the switch switching module and outputting the signals to the HDMI output interface.
8. The multiple-input single-output signal converter according to claim 7, wherein the signal amplification module is a signal amplification chip.
9. The multiple-input single-output signal converter according to claim 2, wherein the first signal conversion module is a first DP/HDMI signal converter, the second signal conversion module is a second DP/HDMI signal converter, and the third signal conversion module is a third DP/HDMI signal converter.
10. The multiple-input single-output signal converter according to claim 1, wherein the power module comprises a power interface for inputting a DC power and a DC/DC converter for DC/DC converting the DC power inputted from the power interface, the power interface is electrically connected to a power input terminal of the DC/DC converter, and a power output terminal of the DC/DC converter is a power supply terminal of the power module.
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|---|---|---|---|---|
| CN113923393A (en) * | 2021-10-19 | 2022-01-11 | 深圳市绿联科技股份有限公司 | Signal converter |
| CN113923393B (en) * | 2021-10-19 | 2023-10-20 | 深圳市绿联科技股份有限公司 | Signal converter |
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