CN117201717A

CN117201717A - Signal format conversion device, method and multimedia signal transmission system

Info

Publication number: CN117201717A
Application number: CN202310930891.XA
Authority: CN
Inventors: 谢佳文; 施绮颖; 李静
Original assignee: Hangzhou Dechang Video Technology Co ltd
Current assignee: Hangzhou Dechang Video Technology Co ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2023-12-08

Abstract

The application relates to a signal format conversion device, a signal format conversion method and a multimedia signal transmission system, and belongs to the field of multimedia. The signal format conversion device, the signal format conversion method and the multimedia signal transmission system are used for being matched with a first terminal and a second terminal, and comprise the following steps: the system comprises a format conversion module, a controller and a trigger component; the format conversion module is used for connecting the first terminal and the second terminal, receiving first format multimedia data sent by the first terminal, converting the first format multimedia data into second format multimedia data, and sending the second format multimedia data to the second terminal; the trigger component is used for receiving external trigger so as to output a control signal to the controller; and the controller responds to the received control signal and sends a starting instruction to the second terminal so as to control the second terminal to play according to the second format multimedia data.

Description

Signal format conversion device, method and multimedia signal transmission system

Technical Field

The present application relates to the field of multimedia, and in particular, to a signal format conversion apparatus, a signal format conversion method, and a multimedia signal transmission system.

Background

The high-definition multimedia interface (High Definition Multimedia Interface, HDMI) is used as a high-definition digital signal transmission interface, and can solve the problems of short signal transmission distance, incompatibility of interfaces and the like of the traditional analog video interface. However, the interfaces between existing computers and portable computers are not compatible and require format conversion.

The existing conversion technology mainly converts the HDMI signal into the USB signal through the converter, or uses more auxiliary cables to transmit the high-definition image to the device.

However, in the prior art, in the video signal conversion process, there is a problem that conversion and transmission efficiency are low due to device incompatibility and only single conversion.

Disclosure of Invention

The embodiment of the application provides a format conversion device, a format conversion method and a multimedia signal transmission system, which are used for at least solving the problem of low transmission efficiency when an HDMI signal is converted into a USB signal in the related art.

In a first aspect, an embodiment of the present application provides a signal format conversion device, configured to cooperate with a first terminal and a second terminal, including: the system comprises a format conversion module, a controller and a trigger component;

the format conversion module is used for connecting the first terminal and the second terminal, receiving first format multimedia data sent by the first terminal, converting the first format multimedia data into second format multimedia data, and sending the second format multimedia data to the second terminal;

the trigger component is used for receiving external trigger so as to output a control signal to the controller;

and the controller responds to the received control signal and sends a starting instruction to the second terminal so as to control the second terminal to play according to the second format multimedia data.

In one embodiment, the signal format conversion device further includes an integration module:

the integrated module is electrically connected with the format conversion module and is used for receiving the second format multimedia data;

the integrated module is electrically connected with the controller and the second terminal, and is used for receiving a starting instruction sent by the controller and sending the starting instruction to the second terminal.

In one embodiment, the first format multimedia data is in HDMI format and the second format multimedia data is in USB format.

In a second aspect, an embodiment of the present application provides a multimedia playing system, including: a first terminal, a second terminal, and a signal format conversion device according to any one of the embodiments of the first aspect.

The first terminal is connected with the second terminal through the signal format conversion device.

In one embodiment, the first terminal is connected to the second terminal through the signal format conversion device, and the method includes:

the signal format conversion device comprises a first conversion device and a second conversion device which are connected with the second terminal, and the first conversion device and the second conversion device are connected with different first terminals;

the first conversion device is used for responding to the external trigger received by the first conversion device and controlling the second terminal to play the second format multimedia data sent by the first conversion device;

the second conversion device is used for responding to the second conversion device to receive the external trigger and controlling the second terminal to play the second format multimedia data sent by the second conversion device.

In a third aspect, an embodiment of the present application provides a signal format conversion method, where the method is used in a signal format conversion device of any one embodiment of the first aspect, where the signal format conversion device is used to cooperate with a first terminal and a second terminal, and the method includes:

acquiring first format multimedia data sent by the first terminal;

converting the first format multimedia data into second format multimedia data;

transmitting the second format multimedia data to the second terminal;

and responding to the received external trigger, sending a starting instruction to the second terminal so as to control the second terminal to play according to the second format multimedia data.

In one embodiment, the signal format conversion device comprises a first conversion device and a second conversion device connected with the second terminal, wherein the first conversion device and the second conversion device are connected with different first terminals;

the response to receiving the external trigger, sending a start instruction to the second terminal to control the second terminal to play according to the second format multimedia data, including:

responding to the first conversion device to receive external trigger, and controlling the second terminal to play the second format multimedia data sent by the first conversion device;

and responding to the second conversion device to receive external trigger, and controlling the second terminal to play the second format multimedia data sent by the second conversion device.

In a fourth aspect, an embodiment of the present application provides a signal format conversion device, configured to cooperate with a first terminal and a second terminal, including: the system comprises a format conversion module, a control module and a trigger module;

the triggering module is used for receiving external triggering and outputting a control signal to the control module;

and the control module is used for responding to the received control signal and sending a starting instruction to the second terminal so as to control the second terminal to play according to the second format multimedia data.

In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements the signal format conversion method of any one of the third aspects.

The format conversion device, the format conversion method and the multimedia signal transmission system provided by the embodiment of the application have at least the following technical effects.

According to the signal format conversion device provided by the application, the HDMI signal of the first terminal is converted into the USB signal through the format conversion module, and the USB signal is transmitted to the second terminal. And sending a control signal through the trigger component to control the controller to send an instruction to the second terminal, so that the second terminal plays according to the converted data. The same second terminal can be connected with a plurality of first terminals through a plurality of devices provided by the application. The signal format conversion device provided by the application has the advantages that the designed interfaces are all interfaces of the conventional portable computer and the terminal display equipment in the market, the problem of incompatibility of the interfaces between the equipment is avoided, the stability and the convenience of signal transmission are improved, and the problem of lower format conversion efficiency can be effectively solved. And the second terminal can be connected with a plurality of first terminals at the same time through the device provided by the application, when the first terminals need to be replaced, the first terminals do not need to be plugged and pulled for multiple times for replacement, the time for signal conversion and transmission is reduced, and the efficiency of signal transmission is improved.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the application.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a block diagram of a signal format conversion apparatus according to an example embodiment;

FIG. 2 is a schematic diagram of an application scenario of a signal format conversion device according to an example implementation;

FIG. 3 is a schematic diagram of a multimedia playback system shown in accordance with an exemplary embodiment;

FIG. 4 is a flowchart illustrating a signal format conversion method according to an exemplary embodiment;

fig. 5 is a flowchart illustrating a first terminal switching method according to an exemplary embodiment;

fig. 6 is a block diagram of a signal format conversion apparatus according to an exemplary embodiment.

Detailed Description

The present application will be described and illustrated with reference to the accompanying drawings and examples in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments provided by the present application without making any inventive effort, are intended to fall within the scope of the present application.

It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is possible for those of ordinary skill in the art to apply the present application to other similar situations according to these drawings without inventive effort. Moreover, it should be appreciated that while such a development effort might be complex and lengthy, it would nevertheless be a routine undertaking of design, fabrication, or manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as having the benefit of this disclosure.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by those of ordinary skill in the art that the described embodiments of the application can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "a," "an," "the," and similar referents in the context of the application are not to be construed as limiting the quantity, but rather as singular or plural. The terms "comprising," "including," "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to only those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in connection with the present application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., "a and/or B" may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The terms "first," "second," "third," and the like, as used herein, are merely distinguishing between similar objects and not representing a particular ordering of objects.

Based on the above situation, the embodiment of the application provides a signal format conversion device, a signal format conversion method and a multimedia signal transmission system.

First aspect

The embodiment of the application provides a signal format conversion device. Fig. 1 is a block diagram of a signal format conversion apparatus according to an exemplary embodiment, as shown in fig. 1, the apparatus comprising: the device comprises a format conversion module 100, a trigger component 200 and a controller 300.

Fig. 2 is a schematic diagram of an application scenario of the signal format conversion apparatus according to an exemplary embodiment. As shown in fig. 2, the signal format conversion device is connected to the first terminal and the second terminal, so as to implement data interaction between the first terminal and the second terminal.

Optionally, the first terminal includes, but is not limited to, a portable computer, a desktop computer, a television, a projector, and the second terminal includes, but is not limited to, a desktop computer, a portable computer, a tablet computer, a television, a projector, a smart phone.

Specifically, the format conversion module 100 in the signal format conversion device connects the first terminal and the second terminal. The format conversion module 100 is configured to receive first format multimedia data sent by a first terminal, convert the first format multimedia data into second format multimedia data, and send the second format multimedia data to a second terminal. Optionally, the first format is an HDMI format, and the second format is a USB format. In this way, conversion of the HDMI format and the USB format is achieved by the signal format conversion means. The specific implementation manners of the first format and the second format are not limited in the embodiment of the present application, and the HDMI format and the USB format are only examples.

Regarding a specific application scenario of the signal format conversion apparatus, in one example, the signal format conversion apparatus is applied to a classroom environment. At this time, the format conversion module is connected with a notebook computer carried by a teacher and a projector installed in a classroom, converts audio and video signals in HDMI format output by the notebook computer into USB format, and sends USB format data to the projector.

In this way, the high-definition video data is transmitted, and the problem that the definition is reduced due to multiple conversion is avoided, so that the classroom experience of students is improved in education and training, and the development of teaching work is facilitated.

In another example, the signal format conversion apparatus is applied to a business environment. At this time, the format conversion module is connected with the portable notebook computer and the television installed in the conference room, and the HDMI USB format output by the notebook computer is transmitted to the television for playing.

In this way, the transmission of high definition video data is realized, and the problem of reduced definition caused by multiple conversions is avoided, so that product information is displayed to customers more intuitively and clearly.

In addition, optionally, the format conversion module automatically acquires the multimedia data signal of the portable computer through the built-in HDMI acquisition card.

In summary, the format conversion module in the signal format conversion device provided by the embodiment of the application can be matched with various devices (such as televisions, computers, tablet computers, smart phones, projectors and the like), so that the problem of incompatibility of interfaces between the devices is avoided, and the stability and convenience of multimedia data transmission are improved.

With continued reference to fig. 2, the trigger assembly 200 is configured to accept an external trigger to output a control signal to the controller.

Optionally, the trigger component comprises a physical key disposed on the signal format conversion device. When the physical key is pressed, a control signal is output to the controller.

Optionally, the triggering component includes a virtual key disposed on the signal conversion device. For example, a touch screen assembly is provided on the signal conversion device, and virtual keys are formed on the touch screen assembly. When the virtual key is pressed, a control signal is output to the controller. The touch screen component is further configured to display a signal conversion related parameter (e.g., a format conversion progress, or a multimedia data identifier currently being format converted).

Optionally, the triggering component comprises a pickup component arranged on the signal conversion device, and the control signal is output to the controller when the recognition result meets the preset condition by collecting the voice instruction of the user and performing voice recognition.

The controller 300 transmits a start instruction to the second terminal in response to receiving the control signal to control the second terminal to play according to the second format multimedia data.

The controller 300 is electrically connected to the trigger assembly 200, and outputs a control signal to the controller when the trigger assembly is triggered externally, and after receiving the control signal, the controller sends instruction information to the second terminal through the serial port to control the second terminal to play according to the received USB format data. The trigger assembly 200 can display the required first terminal picture and audio on the second terminal by one key, thereby improving the efficiency of video information transmission.

In one embodiment, the signal format conversion device further includes an integration module 400. The integrated module 400 is electrically connected to the format conversion module 100, and is configured to receive the second format multimedia data; the integrated module 400 is further electrically connected to the controller 300 and the second terminal, and is configured to receive a start command sent by the controller 300, and send the start command to the second terminal.

The integrated module 400 is mainly used for integrating the format conversion module and the USB output interface of the controller, integrating two USB output interfaces into one USB interface, and saving USB connection lines and connection interfaces. When the subsequent second terminals are connected with the plurality of first terminals, the USB interface can be fully and effectively utilized, multiple plugging and unplugging are not needed for replacement, the efficiency of video information transmission is improved, and the time spent on video information transmission is reduced.

In summary, in the signal format conversion device provided by the present application, the format conversion module 100 converts the HDMI signal of the first terminal into the USB signal and transmits the USB signal to the second terminal. The trigger assembly 200 sends a control signal to control the controller 300 to send an instruction to the second terminal, so that the second terminal plays according to the converted data. The signal format conversion device provided by the application can be matched with various devices, so that the problem of incompatibility of interfaces between the devices is avoided, the stability and convenience of signal transmission are improved, and the problem of low format conversion efficiency can be effectively solved. And the second terminal can be connected with a plurality of first terminals at the same time through the device provided by the application, when the first terminal equipment needs to be replaced, the replacement is not needed by multiple plugging and unplugging, the time for signal conversion and transmission is reduced, and the efficiency of signal transmission is improved.

Second aspect

An embodiment of the present application provides a multimedia playing system, referring to fig. 2, the system includes: a first terminal, a second terminal, and a signal format conversion device in the first aspect; the first terminal is connected with the second terminal through the signal format conversion device.

In one embodiment, the second terminal in the multimedia playing system is connected to at least two signal format conversion devices and the first terminal. Fig. 3 is a schematic diagram of a multimedia playing system according to an exemplary embodiment, and as shown in fig. 3, a signal format conversion device includes a first conversion device 20 and a second conversion device 21 connected to a second terminal 10, where the first conversion device 20 and the second conversion device 21 are connected to different first terminals.

The first conversion device 20 is configured to control the second terminal 10 to play the second format multimedia data sent by the first conversion device 20 in response to the first conversion device 20 receiving an external trigger.

The second conversion device 21 is configured to control the second terminal 10 to play the second format multimedia data sent by the second conversion device 21 in response to the second conversion device 21 receiving the external trigger.

Regarding a specific application scenario of the multimedia playing system, in one example, the multimedia playing system is applied to a classroom environment. At this time, the second terminal is a fixed computer 10 installed in a classroom, and the first terminal includes a teacher's notebook computer 30 and a student's notebook computer 31. The notebook computer 30 is connected with the fixed computer 10 through the first conversion device 20; the notebook computer 31 is then connected to the stationary computer 10 via the second conversion device 21. When a teacher needs to use the notebook computer 30, pressing the trigger component of the first conversion device 20 connected with the notebook computer 30, the fixed computer 10 will play the picture and audio of the notebook computer 30; when students need to use the notebook computer 31 to report homework, the fixed computer switches to play the picture and audio of the notebook computer 31 by pressing the trigger component of the second conversion device 21 connected with the notebook computer 31.

In this embodiment, the second terminal 10 may be connected to multiple first terminals 20 through multiple signal format conversion devices at the same time, when different first terminal devices 30 need to be replaced, multiple plugging is not needed to replace, and only the trigger component corresponding to the signal format conversion device connected to the first terminal needs to be pressed down, so that the time of signal conversion and transmission is reduced, and the efficiency of signal transmission is effectively improved.

In summary, the multimedia playing system provided by the present application includes: a first terminal, a second terminal, and a signal format conversion device in the first aspect. The multimedia playing system provided by the application can be matched with various devices, so that the problem of incompatibility of interfaces between the devices is avoided, the stability and convenience of signal transmission are improved, and the problem of low format conversion efficiency can be effectively solved. The second terminal in the system can be simultaneously connected with a plurality of different first terminals through a plurality of signal format conversion devices, when different first terminal equipment needs to be replaced, the second terminal does not need to be replaced by multiple plugging, the time of signal conversion and transmission is reduced, and the efficiency of signal transmission is improved.

Third aspect of the application

The embodiment of the application provides a signal format conversion method, which is used for a signal format conversion device of a first aspect, wherein the signal format conversion device is used for being matched with a first terminal and a second terminal. Fig. 4 is a flowchart illustrating a signal format conversion method according to an exemplary embodiment, as shown in fig. 4, the method comprising:

step S1031, obtain the first format multimedia data sent by the first terminal.

Step S1032, converting the first format multimedia data into the second format multimedia data.

Step S1033, transmitting the second format multimedia data to the second terminal.

Optionally, the first format is an HDMI format, and the second format is a USB format. In this way, conversion of the HDMI format and the USB format is achieved by the signal format conversion means. The specific implementation manners of the first format and the second format are not limited in the embodiment of the present application, and the HDMI format and the USB format are only examples.

Step S1034, in response to receiving the external trigger, sends a start instruction to the second terminal to control the second terminal to play according to the second format multimedia data.

Step S1034 has various implementations, and is specifically described below.

In the first mode, when the second terminal is connected with only one signal format conversion device, the required first terminal picture and audio are directly displayed on the second terminal in an external triggering mode, so that the efficiency of signal transmission is improved.

In a second way, when the second terminal is connected to the plurality of signal format conversion devices, the signal format conversion devices include a first conversion device and a second conversion device connected to the second terminal, the first conversion device and the second conversion device being connected to different first terminals. In this case, the second terminal can be controlled to play according to the information sent by the different first terminals through the different signal format conversion devices, so that the pluggable-free switching is realized.

Fig. 5 is a flowchart of a first terminal switching method according to an exemplary embodiment, and as shown in fig. 5, step S1034 includes:

in step S1041, in response to the first conversion device receiving the external trigger, the second terminal is controlled to play the second format multimedia data sent by the first conversion device.

In step S1042, in response to the second conversion device receiving the external trigger, the second terminal is controlled to play the second format multimedia data sent by the second conversion device.

When the key of the first conversion device is pressed, the USB format data sent by the first conversion device is sent to the second terminal, and the USB format data is displayed on the second terminal; and when the key of the second conversion device is pressed, the USB format data sent by the second conversion device is sent to the second terminal, and the data is displayed on the second terminal. By the method, pluggable switching is achieved, time consumed by signal conversion and transmission is reduced, and signal transmission efficiency is improved.

Regarding a specific application scenario of the first terminal handover, in one example, the first terminal handover is applied to a classroom environment. At this time, students are required to report the homework reserved by the teacher, the first terminal is a computer carried by the students, and the second terminal is a fixed computer installed in a classroom. When students carry respective notebook computers to report, the notebook computers can be connected to the fixed computers in batches through a plurality of signal format conversion devices, when the students report, the students can display videos and audios on the computers to the fixed computers by pressing a trigger component of the signal format conversion device connected to the computers, and when the students take turns to the next students, the switching display can be realized by pressing the trigger component of the signal format conversion device connected to the respective computers. The device does not need to be replaced by multiple plugging, so that the time for signal conversion and transmission is reduced, and the efficiency of signal transmission is improved.

In this embodiment, the first format signal sent by the first terminal is converted into the second format signal through step S1032 and step S1033, and the second terminal is transmitted, and the external trigger is received through step S1034, so as to control the second terminal to play. The signal format conversion method provided by the embodiment can be matched with various devices, so that the problem of incompatibility of interfaces between the devices is avoided, the stability and convenience of signal transmission are improved, and the problem of low format conversion efficiency can be effectively solved. And the required first terminal picture and audio can be displayed on the second terminal in an external triggering mode, so that the efficiency of video information transmission is improved.

In summary, the signal format conversion method provided by the application can be matched with various devices, has higher device compatibility, avoids the problem of incompatibility of interfaces between the devices, improves the stability and convenience of signal transmission, and can effectively solve the problem of lower format conversion efficiency. And the required first terminal picture and audio can be displayed on the second terminal in an external triggering mode, the second terminal can be connected with a plurality of first terminals at the same time, and when the first terminal equipment needs to be replaced, the first terminal equipment does not need to be replaced by multiple plugging and unplugging, so that the time of signal conversion and transmission is reduced, and the efficiency of signal transmission is improved.

Fourth aspect of

The embodiment of the application provides signal format conversion equipment, which is used for being matched with a first terminal and a second terminal, and comprises the following steps: a format conversion module 101, a control module 102 and a trigger module 103. Fig. 6 is a block diagram of a signal format conversion apparatus according to an exemplary embodiment, as shown in fig. 6.

The format conversion module 101 is configured to connect the first terminal and the second terminal, and is configured to receive the first format multimedia data sent by the first terminal, convert the first format multimedia data into the second format multimedia data, and send the second format multimedia data to the second terminal.

The trigger module 102 is configured to receive an external trigger and output a control signal to the control module.

And the control module 103 is used for sending a starting instruction to the second terminal in response to receiving the control signal so as to control the second terminal to play according to the multimedia data in the second format.

In one embodiment, the signal format conversion device further comprises an integration module 104. The integrated module 104 is electrically connected to the format conversion module and the controller, and is configured to connect to the second terminal, and receive the second format multimedia data and the start command.

In summary, the signal format conversion device provided by the present application converts the HDMI signal of the first terminal into the USB signal and transmits the USB signal to the second terminal through the format conversion module 101. The trigger module 102 sends a control signal to control the control module 103 to send an instruction to the second terminal, so that the second terminal plays according to the converted data. The signal format conversion device provided by the application can be matched with various devices, so that the problem of incompatibility of interfaces between the devices is avoided, the stability and convenience of signal transmission are improved, and the problem of low format conversion efficiency can be effectively solved. And the second terminal can be connected with a plurality of first terminals at the same time through the equipment provided by the application, when the first terminal equipment needs to be replaced, the replacement is not needed by multiple plugging and unplugging, the time for signal conversion and transmission is reduced, and the efficiency of signal transmission is improved.

Fifth aspect of

Embodiments of the present application provide a computer-readable storage medium having stored thereon a program which, when executed by a processor, implements the signal format conversion methods and apparatuses provided in all the foregoing aspects.

More specifically, among others, readable storage media may be employed including, but not limited to: portable disk, hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.

In a possible embodiment, the application may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps of implementing the signal format conversion method provided in the third aspect, when said program product is run on the terminal device.

Wherein the program code for carrying out the application may be written in any combination of one or more programming languages, which program code may execute entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on the remote device or entirely on the remote device.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. A signal format conversion apparatus for cooperation with a first terminal and a second terminal, comprising: the system comprises a format conversion module, a controller and a trigger component;

2. The signal format conversion apparatus according to claim 1, further comprising an integration module:

The integrated module is electrically connected with the format conversion module and the controller and is used for being connected with the second terminal to receive the second format multimedia data and the starting instruction.

3. The signal format conversion device according to any one of claims 1 to 2, wherein the first format multimedia data is in HDMI format, and the second format multimedia data is in USB format.

4. A multimedia playing system, the system comprising: a first terminal, a second terminal, and the signal format conversion apparatus of any one of claims 1 to 3;

5. The multimedia playing system according to claim 4, wherein the first terminal is connected to the second terminal through the signal format conversion device, comprising:

6. A signal format conversion method for use in a signal format conversion apparatus according to any one of claims 1 to 3, the signal format conversion apparatus being adapted to cooperate with a first terminal and a second terminal, the method comprising:

acquiring first format multimedia data sent by the first terminal;

converting the first format multimedia data into second format multimedia data;

transmitting the second format multimedia data to the second terminal;

7. The signal format conversion method according to claim 6, wherein the signal format conversion means includes first conversion means and second conversion means connected to the second terminal, the first conversion means and the second conversion means being connected to different first terminals;

8. A signal format conversion apparatus for cooperation with a first terminal and a second terminal, comprising: the system comprises a format conversion module, a control module and a trigger module;

9. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the signal format conversion method according to any one of claims 1 to 7.