CN114546918A

CN114546918A - Electronic device, switching device, signal switching method and storage medium

Info

Publication number: CN114546918A
Application number: CN202210116751.4A
Authority: CN
Inventors: 谌继灿; 张辉
Original assignee: Hefei Lianbao Information Technology Co Ltd
Current assignee: Hefei Lianbao Information Technology Co Ltd
Priority date: 2022-02-07
Filing date: 2022-02-07
Publication date: 2022-05-27

Abstract

The present disclosure relates to an electronic device, a switching device, a signal switching method, and a storage medium, the electronic device including: a connection port configured as a non-HDMI interface; the detection module is used for receiving a detection signal transmitted by the connection port and generating a first control signal to control the electronic equipment to be converted into an image display mode under the condition that the detection signal is a first signal; and the control module is used for controlling the transmission of the TMDS signals through the connecting port according to the first control signal. The embodiment of the disclosure reduces the cost and can reduce the compatibility problem.

Description

Electronic device, switching device, signal switching method and storage medium

Technical Field

The present invention relates to video switching devices, and in particular, to an electronic device, a switching device, a signal switching method, and a storage medium.

Background

At present, with the increase of the requirement for light weight of portable devices such as notebook computers, research and development personnel continuously use the lightness and thinness of the devices as important design conditions, which makes the thickness of the devices not enough to accommodate the HDMI (High Definition Multimedia Interface) so as to use the Type-C Interface instead of the HDMI Interface for display, but the display of the HDMI Interface still has a large market ratio at present, so that a Type-C to HDMI adapter (converter) has to be used when connecting the HDMI display, which causes cost expenditure of the adapter on one hand and quality of the adapter on the other hand cannot be guaranteed, various adapters exist in the market, their quality varies, and it cannot be guaranteed that all converters are verified, and certain converters inevitably have compatibility problems.

Disclosure of Invention

In view of the above technical problems in the prior art, the present disclosure provides an electronic device, a switching device, a signal switching method, and a storage medium, which can avoid the cost of the adapter and reduce the problem of incompatibility.

In order to solve the technical problem, the present disclosure provides the following technical solutions:

according to a first aspect of the present disclosure, there is provided an electronic device comprising:

a connection port configured as a non-HDMI interface;

the detection module is used for receiving a detection signal transmitted by the connection port, and generating a first control signal to control the electronic equipment to be converted into an image display mode under the condition that the detection signal is a first signal;

and the control module is used for controlling the transmission of the TMDS signals through the connecting port according to the first control signal.

In some possible embodiments, the electronic device further comprises:

one end of the switching component is connected with the connecting port, and the other end of the switching component is connected with external equipment;

the switching assembly comprises a resistor unit and is configured to control the resistance value of the resistor unit to be a first resistance value under the condition that the external device is an HDMI device.

In some possible embodiments, the electronic device further comprises:

and the mode switching component is connected with the detection module, and switches on a first circuit under the condition of receiving the first control signal, and triggers and controls the electronic equipment to be converted into an image display mode.

In some possible embodiments, the mode switching component comprises: a first gating unit, a second gating unit, a third gating unit, and a fourth gating unit; wherein the content of the first and second substances,

a first terminal of the first gating unit is connected with a first terminal of the second gating unit; a second terminal of the first gating cell is connected to a second terminal of the second gating cell; a third terminal of the first gate control unit is connected to a third terminal of the third gate control unit;

a third terminal of the second gating unit is connected with a third terminal of the fourth gating unit;

a first terminal of the third gate control unit is connected with a first terminal of the fourth gate control unit through a capacitor, and a second terminal of the third gate control unit is connected with a second terminal of the fourth gate control unit;

a first output end of the detection module is connected with a connection node of a second terminal of the first gate control unit and a second terminal of the second gate control unit, and a second output end of the detection module is connected with a connection node of a second terminal of the third gate control unit and a second terminal of the fourth gate control unit;

and the connection node of the first gate control unit and the third gate control unit is connected with an SBU pin of a connection port, and the connection node of the second gate control unit and the fourth gate control unit is connected with an AUX/DDC pin of a control module.

In some possible embodiments, the control module controls transmission of the TMDS signal through the connection port when detecting that the AUX/DDC pin is at the second level and receiving the first control signal.

In some possible embodiments, the signal levels output by the first output terminal and the second output terminal are opposite.

According to a second aspect of the present disclosure, there is provided a relay device comprising:

the first connecting end is configured to be an HDMI interface;

the second connecting end is configured to be a non-HDMI interface;

the signal transmission module is respectively connected with the first connecting end and the second connecting end and is used for transmitting data;

and the detection module is respectively connected with the first connecting end and the second connecting end, and is configured to transmit a first signal to the second connecting end when the first connecting end is connected with the HDMI equipment.

In some possible embodiments, the signal transmission module includes a matching resistor for adapting the levels of the first connection terminal and the second connection terminal.

According to a third aspect of the present disclosure, there is provided a signal switching method, comprising:

receiving a detection signal transmitted by a connection port, wherein the connection port is constructed as a non-HDMI interface;

under the condition that the detection signal is a first signal, generating a first control signal to control the electronic equipment to be converted into an image display mode;

and controlling the TMDS signals to be transmitted through the connecting port according to the first control signal.

According to a fourth aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method of the third aspect.

Based on the embodiment of the disclosure, the connection state of the HDMI interface is directly detected through the connection port, and when the connection with the HDMI connection interface is detected, the output of the direct control signal is a TMDS signal, and video display is performed. The embodiment of the disclosure does not need to use an additional adapter, reduces the cost waste, and can directly establish the connection between the TYPE-C port and the HDMI port, thereby reducing the compatibility problem.

Drawings

Fig. 1 shows a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 2 shows a schematic structural diagram of connection of an electronic device and an HDMI device in an example of the present disclosure;

FIG. 3 shows a block diagram of another electronic device in accordance with an embodiment of the present disclosure;

FIG. 4 illustrates a block diagram of an electronic device 800 in accordance with an embodiment of the disclosure;

fig. 5 illustrates a block diagram of another electronic device 1900 in accordance with an embodiment of the disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality, for example, including at least one of A, B, C, and may mean including any one or more elements selected from the group consisting of A, B and C.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

The embodiment of the present disclosure provides an electronic device, which may be any electronic device capable of being connected with a display device, such as a notebook computer, a handheld device, and the like, but is not limited in the present disclosure. The electronic device may include a USB port, such as a Type-C connection port, but not as a specific limitation of the present disclosure.

Fig. 1 shows a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, where the electronic device includes:

a connection port 10 configured as a non-HDMI interface;

the detection module 20 is configured to receive a detection signal transmitted by the connection port, and generate a first control signal to control the electronic device to switch to the image display mode when the detection signal is a first signal;

a control module 30, configured to control transmission of a Transition Minimized Differential Signal (TMDS) through the connection port according to the first control Signal.

In some possible embodiments, the connection port 10 may be a USB port, or other non-HDMI port capable of performing data transmission, and the connection port in the embodiment of the present disclosure may be a Type-C port. According to the embodiment of the disclosure, the detection signal for the HDMI interface can be generated by directly connecting the connection port 10 with the external HDMI device, for example, a high level indicates the HDMI port of the external HDMI device, and a low level indicates that the external HDMI device is a non-HDMI port, but not specifically limited by the disclosure.

The detection module 20 and the connection port 10 may detect a detection signal generated by the connection port 10 in real time, determine an HDMI interface of the external electronic device of the electronic device when the detection signal is a first signal, and establish transmission of a video signal with the external device through the connection port. The first signal may be a high-level signal, and correspondingly, when the detection signal is the second signal, it may be determined that the connected device interface is a non-HDMI interface, and at this time, data transmission under the power and USB protocol may be performed.

In some possible embodiments, the detecting module 20 may generate a first control signal and send the first control signal to the control module 30 when detecting the first signal, and the control module 30 switches the electronic device to a DDC (Display Data Channel) mode when receiving the first control signal, turns on the DDC Channel, and transmits the TMDS signal through the Data transmitting and receiving line, thereby implementing transmission of the video signal.

Based on the configuration, the embodiment of the present disclosure does not need an additional connection adapter, and directly realizes switching and transmission of video signals through monitoring the HDMI interface of the external device. The cost waste of the adapter is reduced, and meanwhile, the equipment structure is fixed, so that the problem of incompatibility of the adapter is reduced.

Further, in the embodiment of the present disclosure, the connection port 10 may be connected to a port of an external device through the adaptor assembly 40, specifically, one end of the adaptor assembly is connected to the connection port 10, and the other end of the adaptor assembly 40 is connected to the external device 100, specifically, may be connected to an HDMI interface of the connection device 100, as shown in fig. 2, which is a schematic structural diagram of connection between an electronic device and an HDMI device in an example of the present disclosure, where the adaptor assembly may be connected to the first port 100 of the external device. The switching assembly comprises a resistor unit and is configured to control the resistance value of the resistor unit to be a first resistance value under the condition that the external device is an HDMI device. The switching component comprises resistors R2 and R3, a connecting node of R2 and R3 is connected with a CC pin of a connecting port, the other end of R3 is grounded, the other end of R2 is connected with a MOS tube Q1, the grid of Q1 is connected with an HPD pin of an HDMI interface of the external device 100, and when the switching component is connected with the external device 100, the HPD pin generates a high level to conduct the MOS tube Q1. Specifically, when the HDMI interface is not connected, the HPD signal is low, CC is connected to GND through R3, and VBUS outputs 5V; when connected with the HDMI interface, the HPD signal is high, the MOS tube Q1 is turned on, and the CC is connected to the ground GND through R2 and R3. Through the structure, whether the connector is connected with the HDMI interface can be determined by detecting the level value (detection signal) of the CC pin, so that whether the connector is externally connected with HDMI equipment is judged.

When the detection signal is determined to represent the first level of the external HDMI interface, the detection module 20 can implement the switching of the DDC mode through the mode switching component 50. As shown in fig. 1, a mode switching component 50 is connected to the detecting module, and when receiving the first control signal, the mode switching component connects the first line to trigger the electronic device to switch to the image display mode.

In some embodiments, the mode switching assembly 50 may include: a first gate unit Q1, a second gate unit Q2, a third gate unit Q3, and a fourth gate unit Q4; wherein a first terminal of the first gating cell is connected to a first terminal of the second gating cell; a second terminal of the first gating cell is connected to a second terminal of the second gating cell; a third terminal of the first gate control unit is connected to a third terminal of the third gate control unit; a third terminal of the second gating unit is connected with a third terminal of the fourth gating unit; a first terminal of the third gate control unit is connected with a first terminal of the fourth gate control unit through a capacitor, and a second terminal of the third gate control unit is connected with a second terminal of the fourth gate control unit;

a first output end of the detection module is connected with a connection node of a second terminal of the first gate control unit and a second terminal of the second gate control unit; the second output end of the detection module is connected with a connecting node of a second terminal of a third gate control unit and a second terminal of a fourth gate control unit, a third terminal of the first gate control unit and a connecting node of a third terminal of the third gate control unit are connected with an SBU pin of a connecting port, and a connecting node of a third terminal of the second gate control unit and a third terminal of the fourth gate control unit is connected with an AUX/DDC pin of the control module. The first gate control unit, the second gate control unit, the third gate control unit and the fourth gate control unit are at least one of a crystal oscillator transistor, an MOS (metal oxide semiconductor) tube and a triode, the first terminal is a drain electrode, the second terminal is a grid electrode, and the third terminal is a source electrode. In addition, the SBU pin is a sideband use signal pin, and the CC pin is a configuration channel. The first control signal comprises two opposite paths of signals, a high level is output through the first output end, the first gate control unit and the second gate control unit are conducted, a low level is output through the second output end, and the third gate control unit and the fourth gate control unit are cut off. And the first gate control unit and the second gate control unit are switched on, so that the AUX/DDC pin of the control module is switched on the DDC channel.

The detection module further transmits the first control signal to the control module, the control module controls to be connected to establish video communication with an external HDMI under the condition that the connection port is determined to be connected with the HDMI, the transmitted information is converted into a TMDS signal, and the TMDS signal is transmitted through RX and TX pins and SSRX and SSTX. And the control module controls the TMDS signal to be transmitted through the connecting port when detecting that the AUX/DDC pin is a second level and receiving the first control signal.

In addition, in the embodiment of the present disclosure, when the electronic device can directly and dynamically switch the HDMI/USB/DP interface, the control module may directly perform switching of the HDMI scene of the video signal through the CPU, and for the electronic device that cannot directly and dynamically switch the HDMI/USB/DP interface, the control module may further include a MUX (data selection) module, and fig. 3 shows a structure diagram of another electronic device according to the embodiment of the present disclosure, where the detection module 30 may send the first control signal to the MUX module 60, select HDMI data as an input source according to the first control signal, switch the AUX signal to the DDC signal, output the TMDS signal, and perform video display with the HDMI device.

In the embodiment of the present disclosure, the SSRX _ P/N pin is an ultra-high speed receiver, and has a function of data transmission if the USB device is plugged in, and a function of data transmission if the USB device is plugged in. The SSTX _ P/N pin is an ultra-high-speed transmitter, and has the functions of data transmission if a USB device is inserted, display transmission if a display is inserted, and data transmission as a whole. The CC pin is a configuration channel, the function is that equipment detects/detects positive and negative insertion, the SBU pin is a sideband use signal, the function makes USB equipment useless, and the display equipment is inserted and is used for DPCD/EDID information transmission. DP/N is USB2.0 signal, function is for USB2.0 signal transmission. PD is for detecting the module, constructs as power communication chip, contains CC pin, the function: the method is used for detecting the external equipment. The GPIO is general purpose input and output, and the function is to inform the CPU of different states through high/low. I2C is an integrated circuit bus functioning for PD and CPU data transfer and communication, DDC _ CLK is a display data channel clock functioning for HDMI display EDID information transfer. DDC _ DA is display data channel data, functioning as EDID information transmission for HDMI displays. AUX is auxiliary transmission channel, and the function is used for DP display DPCD/EDID information transmission. DP [3:0] is the Displayport/display interface data channel, functions as a receiver for DP display data transmission RX, functions as a receiver for data transmission reception when USB is in use, and functions as a transmitter for display transmission when display use, and functions as a transmitter for data transmission when USB is in use, and functions as a transmitter for display transmission when display use. The MUX is a data selector for selecting different data paths. USB RX is a receiver, used for data transmission reception when USB is used. USB _ TX is a transmitter for data transmission when USB is used, and TMDS _ CLK is a minimized differential signal clock for HDMI signal clock transmission. The TMDS _ D0/1/2 is minimized differential signal data for HDMI signal data transmission.

Based on the configuration, the embodiment of the disclosure can directly perform data transmission by identifying the connection of the HDMI interface without additionally using an HDMI and a TYPE-C adapter, thereby reducing the expenditure of adapter cost, and having convenient use and good equipment compatibility. In addition, the video is displayed on the HDMI device through the adapter, the display mode switching is slow, and the switching time of 4-10 seconds is usually required for switching different adapters. In the embodiment of the disclosure, the display mode does not need to be switched, and the electronic device directly outputs the video signal, so that the effect of fast signal output is realized, and the user experience is better.

In addition, an embodiment of the present disclosure may provide a switching device, as shown in fig. 2, the switching device may include: a first connection terminal 100 configured as an HDMI interface; a second connection terminal 10 configured as a non-HDMI interface; a signal transmission module 200, which is connected to the first connection end and the second connection end, respectively, for transmitting data; a detection module 40, respectively connected to the first connection end and the second connection end, configured to transmit a first signal to the second connection end when the first connection end is connected to the HDMI device.

The signal transmission module comprises a terminal matching resistor, and the matching resistor is used for enabling the level of the first connecting end and the level of the second connecting end to be matched, so that the level of the first connecting end and the level of the second connecting end meet the same voltage level. The terminal matching resistor may include a circuit formed by a plurality of resistors, which is not specifically limited by the present disclosure.

The switching device may be a component of the electronic device in the above disclosed embodiment, and this is not specifically limited in the embodiment of the present disclosure.

In addition, the embodiment of the present disclosure further provides a signal switching method, which is applied to an electronic device or a switching device, and the method includes:

In addition, the present disclosure also provides a computer-readable storage medium and a program, which can be used to implement any signal switching method provided by the present disclosure, and the corresponding technical solutions and descriptions and corresponding descriptions of the device parts are referred to and are not described again.

In some embodiments, functions of or modules included in the apparatus provided in the embodiments of the present disclosure may be used to execute the method described in the above method embodiments, and specific implementation thereof may refer to the description of the above method embodiments, and for brevity, will not be described again here.

Embodiments of the present disclosure also provide a computer-readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the above-mentioned method. The computer readable storage medium may be a non-volatile computer readable storage medium.

An embodiment of the present disclosure further provides an electronic device, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above method.

The electronic device may be provided as a terminal, server, or other form of device.

Fig. 4 illustrates a block diagram of an electronic device 800 in accordance with an embodiment of the disclosure. For example, the electronic device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like terminal.

Referring to fig. 4, electronic device 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the electronic device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the electronic device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 806 provides power to the various components of the electronic device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 800.

The multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the electronic device 800 is in an operation mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the electronic device 800. For example, the sensor assembly 814 may detect an open/closed state of the electronic device 800, the relative positioning of components, such as a display and keypad of the electronic device 800, the sensor assembly 814 may also detect a change in position of the electronic device 800 or a component of the electronic device 800, the presence or absence of user contact with the electronic device 800, orientation or acceleration/deceleration of the electronic device 800, and a change in temperature of the electronic device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the electronic device 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium, such as the memory 804, is also provided that includes computer program instructions executable by the processor 820 of the electronic device 800 to perform the above-described methods.

Fig. 5 illustrates a block diagram of another electronic device 1900 in accordance with an embodiment of the disclosure. For example, the electronic device 1900 may be provided as a server. Referring to fig. 5, electronic device 1900 includes a processing component 1922 further including one or more processors and memory resources, represented by memory 1932, for storing instructions, e.g., applications, that are executable by processing component 1922. The application programs stored in memory 1932 may include one or more modules that each correspond to a set of instructions. Further, the processing component 1922 is configured to execute instructions to perform the above-described method.

The electronic device 1900 may also include a power component 1926 configured to perform power management of the electronic device 1900, a wired or wireless network interface 1950 configured to connect the electronic device 1900 to a network, and an input/output (I/O) interface 1958. The electronic device 1900 may operate based on an operating system stored in memory 1932, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.

In an exemplary embodiment, a non-transitory computer readable storage medium, such as the memory 1932, is also provided that includes computer program instructions executable by the processing component 1922 of the electronic device 1900 to perform the above-described methods.

The present disclosure may be systems, methods, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement various aspects of the present disclosure.

The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as punch cards or in-groove raised structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.

The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.

The computer program instructions for carrying out operations of the present disclosure may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry that can execute the computer-readable program instructions implements aspects of the present disclosure by utilizing the state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).

Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An electronic device, comprising:

a connection port configured as a non-HDMI interface;

2. The electronic device of claim 1, further comprising:

3. The electronic device of claim 1, further comprising:

and the mode switching component is connected with the detection module, and is used for switching on a first circuit and triggering and controlling the electronic equipment to be converted into an image display mode under the condition of receiving the first control signal.

4. The electronic device of claim 3, wherein the mode switching component comprises: a first gating unit, a second gating unit, a third gating unit, and a fourth gating unit; wherein the content of the first and second substances,

a first terminal of the third gating cell is connected with a first terminal of the fourth gating cell through a capacitor, and a second terminal of the third gating cell is connected with a second terminal of the fourth gating cell;

5. The electronic device of claim 4, wherein the control module controls transmission of the TMDS signal through the connection port when detecting that the AUX/DDC pin is at the second level and receiving the first control signal.

6. An electronic device according to claim 4 or 5, wherein the signal levels output by the first and second output terminals are opposite.

7. A patching device, comprising:

the first connecting end is configured to be an HDMI interface;

the second connecting end is configured to be a non-HDMI interface;

8. The patching device of claim 7, wherein the signal transmission module comprises a matching resistor, and the matching resistor is used for adapting the levels of the first connection terminal and the second connection terminal.

9. A method of signal switching, comprising:

10. A computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method of claim 9.