CN219287606U - Video resolution switching circuit - Google Patents
Video resolution switching circuit Download PDFInfo
- Publication number
- CN219287606U CN219287606U CN202320026742.6U CN202320026742U CN219287606U CN 219287606 U CN219287606 U CN 219287606U CN 202320026742 U CN202320026742 U CN 202320026742U CN 219287606 U CN219287606 U CN 219287606U
- Authority
- CN
- China
- Prior art keywords
- module
- video
- switching
- signal
- resolution
- 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
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Embodiments of the present disclosure provide a video resolution switching circuit, the circuit comprising: the video communication module and the control module; the control module is connected with the video communication module and is configured to send a switching instruction to the video communication module; the video communication module is connected with the electronic equipment and the external display equipment and is configured to communicate with the electronic equipment so as to output video signals of the electronic equipment to the external display equipment; and switching the resolution of the video signal output in response to the switching instruction. According to the embodiment of the disclosure, the control module can send the switching instruction to the video communication module, so that the video communication module switches the resolution of the output video signal, and therefore the resolution requirements of different users are met.
Description
Technical Field
The present disclosure relates to the field of channel mode switching technology, and relates to, but is not limited to, a video resolution switching circuit.
Background
When transmitting video signals to a display through a computer, since the number of transmission channels is fixed, after the maximum video signal that can be transmitted by the transmission channel is reached, the resolution of the video signal output cannot be switched by switching the video signal.
Disclosure of Invention
In view of this, embodiments of the present disclosure provide a video resolution switching circuit, the circuit including: the video communication module and the control module; the control module is connected with the video communication module and is configured to send a switching instruction to the video communication module; the video communication module is connected with the electronic equipment and the external display equipment and is configured to communicate with the electronic equipment so as to output video signals of the electronic equipment to the external display equipment; and switching the resolution of the video signal output in response to the switching instruction.
In some embodiments, the video communication module includes at least: the device comprises a first connection port, a processing module and a switching module; the processing module is connected with the control module and the first connection port and is configured to respond to the switching instruction and transmit the switching instruction to the switching module; the switching module is connected to the first connection port and is configured to receive the switching instruction; based on the switching instruction, switching the number of data channels in the switching module to switch the resolution of the output video signal; the processing module is further configured to send a communication signal to the electronic device through the first connection port, so that the video signal output by the electronic device is matched with the number of data channels in the switching module.
In some embodiments, when the number of data channels in the switching module is switched from a first number to a second number, the video signal is switched from low resolution to high resolution; when the number of the data channels in the switching module is switched from the second number to the first number, the video signal is switched from high resolution to low resolution; wherein the first number is less than the second number.
In some embodiments, the resolution of the video signal includes 1080P, 2K, 4K30, and 4K60.
In some embodiments, the switching module is a VL171 chip.
In some embodiments, the video communication module further comprises: the video module and the second connection port; the switching module is further configured to acquire a video signal of the electronic device through the first connection port and output the video signal to the video module; the video module is connected to the switching module and the second connection port, and is configured to receive the video signal and output the video signal to an external display device through the second connection port.
In some embodiments, the video module is further coupled to the processing module; the processing module is further configured to interact with the electronic device through the first connection port, and if a protocol signal is received from an output port of the electronic device, send the protocol signal to the video module; the video module is further configured to send the received protocol signal to an external display device through the second connection port, and acquire a feedback signal from the external display device through the second connection port; the processing module is further configured to acquire a feedback signal from the video module, and determine that the video signal can be normally output based on detecting whether the feedback signal is a high level signal.
In some embodiments, the first connection port is a Type-C connection port; the processing module is a fast charging protocol chip.
In some embodiments, the video module is a video chip; the second connection port is a high-definition multimedia interface.
In some embodiments, the control module is connected to pin 14 of the fast charge protocol chip GPIO port.
Embodiments of the present disclosure provide a video resolution switching circuit, the circuit including: the video communication module and the control module; the control module is connected with the video communication module and is used for sending a switching instruction to the video communication module; the video communication module is connected with the electronic equipment and the external display equipment and is used for communicating with the electronic equipment so as to output video signals of the electronic equipment to the external display equipment; and switching the resolution of the video signal output in response to the switching instruction. Therefore, the control module can send a switching instruction to the video communication module, so that the video communication module switches the resolution of the output video signal, and the resolution requirements of different users are met.
Drawings
Fig. 1 is a schematic diagram of a video resolution switching circuit according to an embodiment of the disclosure;
fig. 2 is a schematic diagram two of a video resolution switching circuit according to an embodiment of the disclosure;
fig. 3 is a schematic diagram III of a video resolution switching circuit according to an embodiment of the disclosure;
fig. 4 is a schematic diagram of a video resolution switching circuit according to an embodiment of the disclosure.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the specific embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present disclosure. However, it will be apparent to one skilled in the art that the present disclosure may be practiced without one or more of these details. In other instances, well-known features have not been described in order to avoid obscuring the present disclosure; that is, not all features of an actual implementation are described in detail herein, and well-known functions and constructions are not described in detail.
In the drawings, the size of layers, regions, elements and their relative sizes may be exaggerated for clarity. Like numbers refer to like elements throughout.
It will be understood that when an element or layer is referred to as being "on" … …, "" adjacent to "… …," "connected to" or "coupled to" another element or layer, it can be directly on, adjacent to, connected to or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on" … …, "" directly adjacent to "… …," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present disclosure. When a second element, component, region, layer or section is discussed, it does not necessarily mean that the first element, component, region, layer or section is present in the present disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
The embodiment of the present disclosure provides a video resolution switching circuit, as shown in fig. 1, a video resolution switching circuit 10 includes: a video communication module 11 and a control module 12.
With continued reference to fig. 1, the control module 12, connected to the video communication module 11, is configured to send a switching command to the video communication module 11.
In the embodiment of the present disclosure, the control module 12 may be a key, and the system implements to press the key, so as to send a switching instruction to the video communication module 11. The switching instruction may be an instruction to switch the output resolution of the video signal.
With continued reference to fig. 1, the video communication module 11, connected to the electronic device 21 and the external display device 22, is configured to communicate with the electronic device 21 to output a video signal of the electronic device 21 to the external display device 22; and switching the resolution of the video signal output in response to the switching instruction.
In the embodiment of the disclosure, the electronic device 21 may be a computer, and the external display device 22 may be a display screen.
In the embodiment of the disclosure, when the switching instruction is not received, the video communication module 11 communicates with the electronic device 21, obtains the video signal in the electronic device 21, and transmits the video signal to the external display device 22. Upon receiving the switching instruction, the video communication module 11 responds to the switching instruction, thereby switching the resolution of the video signal output, and outputting the video signal after switching the resolution to the external display device 22.
In some embodiments, the resolution of the video signal includes 1080 Progressive scan (P), 2K, 4K30, and 4K60. In other embodiments, the resolution of the video signal may be other sizes of resolution, as the disclosure is not limited in this regard.
In the embodiment of the disclosure, the resolution of switching the output of the video signal may be switched from 1080P to 2K, from 2K to 4K, and so on, where the resolution of the video signal may be determined according to the number of channels (lanes) and the bandwidth of the channels in the video communication module 11; for example, the number of channels may be 2, and the bandwidths of the channels may be display interfaces (DP) 1.2 and DP1.4. As another example, the number of channels may be 4, and the bandwidths of the channels may be DP1.2.
It should be noted that, in the present disclosure, the resolution of the switching video signal refers to: switching the resolution and refresh rate of the video signal, for example, the resolution of the video signal is unchanged, the refresh rate of the video signal is switched from 30 hertz (Hz) to 60Hz, at which time the switching video signal is switched from original 4K30 to 4K60; for another example, the resolution of the video signal is switched from 1080P to 2K, and the refresh rate of the video signal is unchanged, and at this time, the switching video signal is switched from 1080P to 2K.
In the embodiment of the disclosure, the control module can send the switching instruction to the video communication module, so that the video communication module switches the resolution of the output video signal, thereby meeting the resolution requirements of different users.
Next, the video resolution switching circuit will be described in detail with reference to fig. 1 to 4.
Referring to fig. 1 and 2, the video resolution switching circuit 10 is connected to the electronic device 21, and outputs a video signal of the electronic device 21 to the external display device 22. The video resolution switching circuit 10 includes a video communication module 11, and a control module 12.
Referring to fig. 1 and 3, the video communication module 11 at least includes: a first connection port 111, a processing module 115 and a switching module 112.
In the embodiment of the present disclosure, the first connection port 111 may be a Type-C port. The processing module 115 may be a fast charge protocol chip (Power Delivery Integrated Circuit, PD protocol IC), e.g., PD protocol IC (FL 7112). The switching module may be a VL171 chip.
In some embodiments, when the processing module 115 is a fast-fill protocol chip, the control module 12 is connected to pin 14 of a General-Purpose Input/Output Ports (GPIO) of the fast-fill protocol chip. In this way, the control module 12 may send a switching instruction to the processing module 115 by triggering the 14 pin of the GPIO port of the fast charging protocol chip.
With continued reference to fig. 3, the processing module 115, coupled to the control module 12 and the first connection port 111, is configured to communicate a switching instruction to the switching module in response to the switching instruction.
In the embodiment of the disclosure, after the control module 12 sends the switching instruction to the processing module 115, the processing module 115 responds to the switching instruction and transmits the switching instruction to the switching module 112.
With continued reference to fig. 3, the switching module 112, connected to the first connection port 111, is configured to receive a switching instruction; and switching the number of data channels in the switching module based on the switching instruction to switch the resolution of the output video signal.
In the embodiment of the present disclosure, after the switching module 112 receives the switching instruction, the number of data channels in the switching module 112 is switched.
In some embodiments, when the number of data channels in the switching module is switched from the first number to the second number, the video signal is switched from low resolution to high resolution; when the number of the data channels in the switching module is switched from the second number to the first number, the video signal is switched from high resolution to low resolution; wherein the first number is less than the second number.
For example, the original number of data channels is switched from a first number equal to 2 (i.e., 2 lines) to a second number equal to 4 (i.e., 4 lines), and at this time, the resolution of the maximum output video signal is switched from 2K to 4K. For another example, the original number of data channels is switched from 4 (i.e., 4 lane) to 2 (i.e., 2 lane), and at this time, the resolution of the maximum output video signal is switched from 4K to 2K.
It should be noted that the high resolution and the low resolution in the embodiments of the present disclosure are relatively speaking, for example, a video signal of 2K resolution is high resolution with respect to a video signal of 1080P resolution, and a video signal of 2K resolution is low resolution with respect to a video signal of 4K resolution.
In the embodiment of the disclosure, the resolution of the output video signal can be changed by changing the number of the transmission channels, so that the maximum video signal which can be transmitted by the transmission channels is changed.
With continued reference to fig. 3, the processing module 115 is further configured to send a communication signal to the electronic device (not shown in fig. 3) through the first connection port 111, so that the video signal output by the electronic device matches the number of data channels in the switching module.
In the embodiment of the disclosure, while the processing module 115 transmits the switching instruction to the switching module 112, the processing module 115 also transmits the CC signal to the central processor (Central Processing Unit, CPU) of the electronic device through the configuration pin 1 (Configuration Channel, CC 1) or CC 2; after the central processing unit of the electronic device receives the signal, the number of channels in the switching module 112 is determined, so that the video signal output by the electronic device matches with the number of data channels in the switching module 112.
For example, when the number of data channels in the switching module 112 is switched from 2 (i.e. 2 lane) to 4 (i.e. 4 lane), the resolution of the video signal that can be output is switched from 2K to 4K, and the cpu of the electronic device determines that the number of channels in the switching module 112 is 4, and the cpu of the electronic device communicates with CC1 or CC2 of the first connection port 111 through the protocol signal, so as to output the video signal with the resolution of 4K to the switching module 112.
For another example, when the number of data channels in the switching module 112 is switched from 4 (i.e. 4 lane) to 2 (i.e. 2 lane), the resolution of the video signal that can be output is switched from 4K to 2K at maximum, the cpu of the electronic device determines that the number of channels in the switching module 112 is 2, and the cpu of the electronic device communicates with CC1 or CC2 of the first connection port 111 through a protocol signal, so as to output the video signal with 2K resolution to the switching module 112.
In some embodiments, referring to fig. 1 and 4, the video communication module 11 further includes: a video module 113 and a second connection port 114.
In some embodiments, video module 113 may be a Video chip (Video IC). The second connection port 114 may be a high definition multimedia interface (High Definition Multimedia Interface, HDMI).
With continued reference to fig. 4, the switching module 112 is further configured to acquire a video signal of an electronic device (not shown in fig. 4) through the first connection port 111, and output the video signal to the video module 113.
For example, when the number of data channels in the switching module 112 is switched from 2 (i.e., 2 lane) to 4 (i.e., 4 lane), the cpu of the electronic device outputs a video signal with 4K resolution, and transmits the video signal with 4K resolution to the switching module 112 through the first connection port, and the switching module 112 transmits the video signal with 4K resolution to the video module 113.
For another example, when the number of data channels in the switching module 112 is switched from 4 (i.e. 4 lane) to 2 (i.e. 2 lane), the cpu of the electronic device outputs a video signal with 2K resolution, and sends the video signal with 2K resolution to the switching module 112 through the first connection port, and the switching module 112 sends the video signal with 2K resolution to the video module 113.
With continued reference to fig. 4, the video module 113, connected to the switching module 112 and the second connection port 114, is configured to receive the video signal and output the video signal to the external display device through the second connection port 114.
It should be noted that, the external display device in the embodiments of the present disclosure may support displaying the resolution of the received video signal. For example, when the external display device receives a video signal of 4K resolution, the external display device may support displaying the video signal of 4K resolution.
In the embodiment of the disclosure, the video module 113 outputs the received video signal with the resolution of 4K (or the video signal with the resolution of 2K) to the external display device through the second connection port 114, so that the resolution of the video signal is switched, and the resolution requirements of different users are met.
In some embodiments, video module 113 is also coupled to processing module 115; in this way, it may be determined by the processing module 115 whether the electronic device can normally output a video signal before switching the video resolution.
With continued reference to fig. 4, the processing module 115 is further configured to interact with the electronic device through the first connection port 111, and if a protocol signal is received from an output port of the electronic device, send the protocol signal to the video module.
With continued reference to fig. 4, after the first connection port 111 is connected to the electronic device, the processing module 115 sends a CC signal to the central processor of the electronic device through CC1 or CC 2; after receiving the signal, the cpu of the electronic device sends a communication signal to the processing module 115. Wherein the communication signal at least comprises a CC signal.
It should be noted that, the processing module 115 and the central processor of the electronic device communicate with each other through CC signals, and if the signal sent by the processing module 115 or the central processor of the electronic device does not have the CC signal, the processing module 115 and the central processor of the electronic device cannot communicate with each other, so that the subsequent determining step cannot be performed.
In the embodiment of the disclosure, after receiving the communication signal fed back by the electronic device, the processing module 115 performs communication through the CC signal in the communication signal, and reads whether the communication signal includes the protocol signal after the communication is completed. If the communication signal does not include the protocol signal, the electronic device cannot output the video signal. If the communication signal includes a protocol signal, the processing module 115 sends the protocol signal to the video module.
With continued reference to fig. 4, the video module 113 is further configured to send the received protocol signal to the external display device through the second connection port 114, and obtain a feedback signal from the external display device through the second connection port 114.
In an embodiment of the present disclosure, the feedback signal may be a hot plug detect (Hot Plug Detection, HPD) signal.
In the embodiment of the disclosure, the video module 113 sends the received protocol signal to the external display device through the second connection port 114, and the external display device generates a feedback signal after receiving the protocol signal and feeds back the feedback signal to the processing module 115 through the video module 113.
With continued reference to fig. 4, the processing module 115 is further configured to obtain a feedback signal from the video module 113, and determine that the video signal can be normally output based on detecting whether the feedback signal is a high level signal.
In the embodiment of the disclosure, the processing module 115 obtains the feedback signal from the video module 113, detects whether the feedback signal is a high level signal, and if the feedback signal is a high level signal, interacts with the electronic device to obtain a protocol signal, so as to determine that the video signal can be normally output. Otherwise, it is determined that the video signal cannot be normally output.
In the embodiment of the disclosure, whether the electronic device can normally output video can be determined more accurately by determining whether the communication signal received by the processing module includes the protocol signal and determining whether the protocol signal can normally output data by the feedback signal.
The video resolution switching circuit provided by the embodiment of the disclosure can be applied to HUBs (HUB) and Docking stations (Docking).
The present disclosure also provides a video resolution switching circuit, which switches the resolution by a key (i.e., the control module), converts a 2K video from an original 1080P, and converts a 4K video from an original 2K; when the original 4K30 converts the video with the resolution of 4K60, and normally communicates with the CC1 or the CC2 through the Dpalmod (namely the protocol signal), the 2-lane (namely the data channel) output video is the video with the resolution of 2K, (wherein, the data which can be transmitted by the bandwidth DP1.2 of one data channel is 5.4G, and the data which can be transmitted by the DP1.4 is 8.1G), if the display (namely the external display device) is the video supporting the resolution of 4K, the output of the high-definition video with the resolution of 4K can be realized through the present disclosure.
The schematic diagram of the handover is as follows: when the key is pressed, after the 14 feet of the GPIO port of the PD protocol IC (FL 7112) (namely the processing module) is triggered, CC1 or CC2 of the PD protocol IC (FL 7112) is given to a CPU signal (namely a CC signal) of a computer (namely the electronic equipment), at the moment, a switching chip VL171 (namely the switching module) is switched from 2 to 4, the CPU signal of the computer judges whether the signal is 2 to 4, when the CPU of the computer judges that the signal is 2 to communicate with CC1 or CC2 through Dpalmod, the computer outputs video with 2K resolution, and if the signal is judged to be 4 to communicate with CC1 or CC2 through Dpalmod, the computer outputs high-definition video signals with 4K resolution, so that the functional design requirements of two different resolutions and free switching of refresh rates of users are met.
In several embodiments provided by the present disclosure, it should be understood that the disclosed structures and methods may be implemented in a non-targeted manner. The above-described structural embodiments are merely illustrative, and for example, the division of units is merely a logic function division, and there may be other division manners in actual implementation, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the components shown or discussed are coupled to each other or directly.
Features disclosed in the several method or structure embodiments provided in the present disclosure may be arbitrarily combined without any conflict to obtain new method embodiments or structure embodiments.
The above is merely some embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present disclosure, and should be covered in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. A video resolution switching circuit, the circuit comprising: the video communication module and the control module;
the control module is connected with the video communication module and is configured to send a switching instruction to the video communication module;
the video communication module is connected with the electronic equipment and the external display equipment and is configured to communicate with the electronic equipment so as to output video signals of the electronic equipment to the external display equipment; and switching the resolution of the video signal output in response to the switching instruction.
2. The circuit of claim 1, wherein the video communication module comprises at least: the device comprises a first connection port, a processing module and a switching module;
the processing module is connected with the control module and the first connection port and is configured to respond to the switching instruction and transmit the switching instruction to the switching module;
the switching module is connected to the first connection port and is configured to receive the switching instruction; based on the switching instruction, switching the number of data channels in the switching module to switch the resolution of the output video signal;
the processing module is further configured to send a communication signal to the electronic device through the first connection port, so that the video signal output by the electronic device is matched with the number of data channels in the switching module.
3. The circuit of claim 2, wherein the video signal is switched from low resolution to high resolution when the number of data channels in the switching module is switched from a first number to a second number;
when the number of the data channels in the switching module is switched from the second number to the first number, the video signal is switched from high resolution to low resolution; wherein the first number is less than the second number.
4. The circuit of claim 2, wherein the resolution of the video signal comprises 1080P, 2K, 4K30 and 4K60.
5. The circuit of claim 2, wherein the switching module is a VL171 chip.
6. The circuit of claim 2, wherein the video communication module further comprises: the video module and the second connection port;
the switching module is further configured to acquire a video signal of the electronic device through the first connection port and output the video signal to the video module;
the video module is connected to the switching module and the second connection port, and is configured to receive the video signal and output the video signal to an external display device through the second connection port.
7. The circuit of claim 6, wherein the video module is further coupled to the processing module;
the processing module is further configured to interact with the electronic device through the first connection port, and if a protocol signal is received from an output port of the electronic device, send the protocol signal to the video module;
the video module is further configured to send the received protocol signal to an external display device through the second connection port, and acquire a feedback signal from the external display device through the second connection port;
the processing module is further configured to acquire a feedback signal from the video module, and determine that the video signal can be normally output based on detecting whether the feedback signal is a high level signal.
8. The circuit of claim 2, wherein the first connection port is a Type-C connection port; the processing module is a fast charging protocol chip.
9. The circuit of claim 6, wherein the video module is a video chip; the second connection port is a high-definition multimedia interface.
10. The circuit of claim 8, wherein the control module is connected to 14 pins of the fast charge protocol chip GPIO port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320026742.6U CN219287606U (en) | 2023-01-04 | 2023-01-04 | Video resolution switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320026742.6U CN219287606U (en) | 2023-01-04 | 2023-01-04 | Video resolution switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219287606U true CN219287606U (en) | 2023-06-30 |
Family
ID=86923358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320026742.6U Active CN219287606U (en) | 2023-01-04 | 2023-01-04 | Video resolution switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219287606U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117676060A (en) * | 2024-02-01 | 2024-03-08 | 深圳市灰度科技有限公司 | Video signal transmission circuit and system |
| CN117676060B (en) * | 2024-02-01 | 2024-06-11 | 深圳市灰度科技有限公司 | Video signal transmission circuit and system |
-
2023
- 2023-01-04 CN CN202320026742.6U patent/CN219287606U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117676060A (en) * | 2024-02-01 | 2024-03-08 | 深圳市灰度科技有限公司 | Video signal transmission circuit and system |
| CN117676060B (en) * | 2024-02-01 | 2024-06-11 | 深圳市灰度科技有限公司 | Video signal transmission circuit and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109286771B (en) | Terminal equipment and control method thereof | |
| US7138989B2 (en) | Display capable of displaying images in response to signals of a plurality of signal formats | |
| US9886413B2 (en) | Displayport over USB mechanical interface | |
| EP0778516B1 (en) | Hardware independent display device interface | |
| CN107301148B (en) | USB Type-C interface conversion module, system and connection method | |
| US9197340B2 (en) | Connector and interface circuit for simultaneous content streaming and user data from handheld devices | |
| JP2009009106A (en) | Multimedia interface | |
| US20130050582A1 (en) | Enhanced hdmi system and method | |
| CN107872627B (en) | Video matrix control apparatus | |
| US20060053212A1 (en) | Computer network architecture for providing display data at remote monitor | |
| US8878859B1 (en) | Automatic VGA monitor detection | |
| US7221361B2 (en) | Display apparatus | |
| CN107506322B (en) | Type-C adapter for realizing detection of USB equipment and channel control method | |
| US20060106911A1 (en) | Concurrent PCI express with sDVO | |
| US10897595B2 (en) | Dynamic direction control in active cable | |
| US20110057881A1 (en) | Kvm management system and method of providing adaptable synchronization signal | |
| CN219287606U (en) | Video resolution switching circuit | |
| KR100763947B1 (en) | Electric Apparatus And Control Method Thereof | |
| US20100169517A1 (en) | Multimedia Switch Circuit and Method | |
| CN213213650U (en) | Video access card and LED display controller | |
| US6744779B1 (en) | Data processing system | |
| CN115442574A (en) | Screen-projecting selection controller, control system, control method and vehicle | |
| CN111757051B (en) | Data transmission method, intelligent terminal and radar system | |
| CN219514091U (en) | Protocol signal detection circuit | |
| US10971110B2 (en) | Circuit and method for use in a first display device to facilitate communication with a second display device, and display communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |