Screen projector

Abstract

The utility model provides a screen projector, relates to the technical field of screen projection, and can reduce the use cost of a user and provide more choices for the user. The screen projector comprises a screen projection processing unit and a wireless transmission unit. The projection screen processing unit is used for being connected with source equipment, and the wireless transmission unit is used for being wirelessly connected with a projection screen receiving end. And the screen projection processing unit is used for acquiring the multimedia data from the source equipment, encoding the multimedia data and sending the encoded multimedia data to the wireless transmission unit. And the wireless transmission unit is used for sending the encoded multimedia data to a screen projection receiving end, so that the screen projection receiving end displays the multimedia data. Wherein the state between the screen projection processing unit and the wireless transmission unit comprises a connection state and a separation state; and when the screen projection processing unit and the wireless transmission unit are in a connection state, the connection between the screen projection processing unit and the wireless transmission unit is fixed in a preset fixing mode.

Description

Technical Field

[0001] This application relates to the field of screen mirroring technology, and particularly to a screen mirroring device. Background Art

[0002] Wireless screen mirroring devices have the function of screen mirroring. By connecting to an electronic device, a wireless screen mirroring device can transmit multimedia resources such as pictures and videos displayed on the electronic device (such as a mobile phone or a tablet) to the screen mirroring receiving end (such as a TV or a monitor) for display through the wireless transmission module in the wireless screen mirroring device.

[0003] Currently, some electronic devices such as (desktop computers) do not have the function of wireless transmission and can be screen mirrored through a wireless screen mirroring device. However, currently some electronic devices (such as mobile phones or tablets) already have the function of wireless transmission. In this way, it will cause the wireless transmission module in the wireless screen mirroring device to duplicate the wireless transmission function of the electronic device, resulting in a relatively high usage cost for users. Utility Model Content

[0004] This application provides a screen mirroring device for solving the problem of relatively high cost of the screen mirroring device.

[0005] To achieve the above object, this application adopts the following technical solutions:

[0006] In a first aspect, this application provides a screen mirroring device, which includes: a screen mirroring processing unit and a wireless transmission unit. The screen mirroring processing unit is used to connect to a source device, and the wireless transmission unit is used to wirelessly connect to a screen mirroring receiving end. The screen mirroring processing unit is used to obtain multimedia data from the source device, encode the multimedia data, and send the encoded multimedia data to the wireless transmission unit. The wireless transmission unit is used to send the encoded multimedia data to the screen mirroring receiving end so that the screen mirroring receiving end can display the multimedia data. Among them, the states between the screen mirroring processing unit and the wireless transmission unit include: a connected state and a separated state; when the state between the screen mirroring processing unit and the wireless transmission unit is in the connected state, the connection between the screen mirroring processing unit and the wireless transmission unit is fixed by a preset fixed method.

[0007] In a possible design, the screen mirroring processing unit includes: a data acquisition module, a data conversion module, and a data processing module, where the data conversion module is respectively connected to the data acquisition module and the data processing module. The data acquisition module is used to receive multimedia data in a first format and send the multimedia data in the first format to the data conversion module. The data conversion module is used to convert the multimedia data in the first format into multimedia data in a second format and send the multimedia data in the second format to the data processing module; the second format is a data format supported by the data processing module. The data processing module is used to compress the multimedia data in the second format and send the compressed multimedia data in the second format to the wireless transmission unit.

[0008] In a possible design, magnetic adsorption components are respectively deployed on the screen mirroring processing unit and the wireless transmission unit. The preset fixing method includes: fixing the connection between the screen mirroring processing unit and the wireless transmission unit through the magnetic adsorption components.

[0009] In a possible design, the screen mirroring processing unit and the wireless transmission unit are respectively provided with a protruding part and a recessed part. The preset fixing method includes: fixing the connection between the screen mirroring processing unit and the wireless transmission unit by embedding the protruding part into the recessed part.

[0010] In a possible design, a first electrical connector is installed on the screen mirroring processing unit, and a second electrical connector is installed on the wireless transmission unit. The first electrical connector and the second electrical connector are respectively a male electrical connector and a female electrical connector. When the state between the screen mirroring processing unit and the wireless transmission unit is in a connected state, the screen mirroring processing unit is electrically connected to the wireless transmission unit through the first electrical connector and the second electrical connector. The screen mirroring processing unit is further configured to send the encoded multimedia data to the wireless transmission unit through the first electrical connector and the second electrical connector.

[0011] In a possible design, the first electrical connector and the second electrical connector are any one of the following: a pogopin connector, a board-to-board connector, and a socket connector.

[0012] In a possible design, the screen mirroring processing unit further includes: a screen mirroring button. The screen mirroring button is used to trigger sending the encoded multimedia data to the screen mirroring receiving end.

[0013] In a possible design, the wireless transmission unit further includes: a screen mirroring button. The screen mirroring button is used to trigger sending the encoded multimedia data to the screen mirroring receiving end.

[0014] In a possible design, the screen mirroring processing unit includes: a data acquisition module and a data processing module, and the data acquisition module is connected to the data processing module. The data acquisition module is configured to acquire multimedia data and send the multimedia data to the data processing module. The data processing module is configured to encode the multimedia data and send the encoded multimedia data to the wireless transmission unit.

[0015] In a possible design, the screen mirroring processing unit further includes a conversion module, and the conversion module is respectively connected to the data acquisition module and the data processing module. The conversion module is configured to acquire multimedia data in a first format and convert the multimedia data in the first format into multimedia data in a second format; the second format is the data format supported by the data processing module. The conversion module is further configured to send the multimedia data in the second format to the data processing module.

[0016] In a possible design, a wireless transmission unit is configured to send encoded multimedia data to a screen mirroring receiver via a wireless network. Both the wireless transmission unit and the screen mirroring receiver support the wireless screen mirroring protocol. The screen mirroring receiver is configured to receive the encoded multimedia data sent by the wireless transmission unit and display the multimedia data.

[0017] Based on the above technical solution, a screen mirroring processing unit is configured to obtain multimedia data, encode the multimedia data, and send the encoded multimedia data to the wireless transmission unit. The wireless transmission unit is configured to send the encoded multimedia data to the screen mirroring receiver via a wireless network. Among them, the states between the screen mirroring processing unit and the wireless transmission unit include: a connected state and a separated state; when the state between the screen mirroring processing unit and the wireless transmission unit is in the connected state, the connection between the screen mirroring processing unit and the wireless transmission unit is fixed by a preset fixed method. That is to say, in this application, the screen mirroring processing unit and the wireless transmission unit can be disassembled, so that the two are in a connected state or a separated state. In this way, the user can choose a screen mirroring device including the screen mirroring processing unit, or choose a screen mirroring device including the screen mirroring processing unit and the wireless transmission unit. This can not only reduce the user's usage cost, but also provide more choices for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a system architecture diagram of a screen mirroring system provided by an embodiment of the present application;

[0019] Figure 2 It is a schematic structural diagram of a screen mirroring device provided by an embodiment of the present application;

[0020] Figure 3 It is a schematic structural diagram of another screen mirroring device provided by an embodiment of the present application;

[0021] Figure 4 It is a schematic structural diagram of another screen mirroring device provided by an embodiment of the present application;

[0022] Figure 5 It is a schematic structural diagram of another screen mirroring device provided by an embodiment of the present application;

[0023] Figure 6 It is a schematic structural diagram of another screen mirroring device provided by an embodiment of the present application;

[0024] Figure 7 It is a schematic structural diagram of another screen mirroring device provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0026] The terms "first" and "second" in the specification and claims of the present application are used to distinguish different objects, rather than to describe a specific order of the objects.

[0027] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or modules is not limited to the listed steps or modules, but optionally further includes other unlisted steps or modules, or optionally further includes other steps or modules inherent to these processes, methods, products or devices.

[0028] In addition, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be construed as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present concepts in a specific manner.

[0029] Currently, some electronic devices such as (desktop computers) do not yet have a wireless transmission function and can be screen mirrored through a wireless screen mirroring device. However, some current electronic devices (such as mobile phones or tablets, etc.) already have a wireless transmission function. As a result, the wireless transmission module in the wireless screen mirroring device duplicates the wireless transmission function of the electronic device. However, when users select a screen mirroring device, they still need to select a screen mirroring device with a wireless transmission module, resulting in a relatively high usage cost for users.

[0030] To solve the above technical problems, an embodiment of the present application provides a screen mirroring device. The screen mirroring device includes: a screen mirroring processing unit and a wireless transmission unit. The screen mirroring processing unit is configured to obtain multimedia data, encode the multimedia data, and send the encoded multimedia data to the wireless transmission unit. The wireless transmission unit is configured to send the encoded multimedia data to a screen mirroring receiving end through a wireless network. Wherein, the states between the screen mirroring processing unit and the wireless transmission unit include: a connected state and a separated state; when the state between the screen mirroring processing unit and the wireless transmission unit is in the connected state, the connection between the screen mirroring processing unit and the wireless transmission unit is fixed by a preset fixed method. That is to say, in the present application, the screen mirroring processing unit and the wireless transmission unit can be disassembled, so that the two are in the connected state or the separated state. In this way, the user can choose a screen mirroring device including the screen mirroring processing unit, or choose a screen mirroring device including the screen mirroring processing unit and the wireless transmission unit. This can not only reduce the user's usage cost, but also provide more choices for the user. That is to say, when the source device has a wireless transmission function, the user can only choose a screen mirroring device including the screen mirroring processing unit, and the source device sends data through its wireless transmission function. When the source device does not have a wireless transmission function, the user can choose a screen mirroring device including the screen mirroring processing unit and the wireless transmission unit, and the wireless transmission unit of the screen mirroring device sends data.

[0031] The implementation environment of the embodiment of the present application will be introduced below.

[0032] As Figure 1 shown, a screen mirroring system provided by an embodiment of the present application includes: a screen mirroring device 101, a source device 102, and a screen mirroring receiving end 103. Wherein, the screen mirroring device 101 is connected to the source device 102, and the screen mirroring device 101 is wirelessly connected to the screen mirroring receiving end 103.

[0033] The screen mirroring device 101 is configured to send the data to be screen mirrored in the source device 102 to the screen mirroring receiving end 103, so that the screen mirroring receiving end 103 displays the data to be screen mirrored. In addition, the screen mirroring device 101 can also receive the user's operation to trigger the start of the screen mirroring operation or the stop of the screen mirroring operation. The screen mirroring device 101 can also process the data to be screen mirrored (such as compression, format conversion, resolution adjustment, etc.).

[0034] It should be noted that, in the embodiment of the present application, the screen mirroring device 101 may include: a screen mirroring processing unit, or, the screen mirroring device 101 may include: a screen mirroring processing unit and a wireless transmission unit. That is to say, the screen mirroring device 101 connected to the source device 102 may be a screen mirroring processing unit. Or, the screen mirroring device 101 connected to the source device 102 may include a screen mirroring processing unit and a wireless transmission unit.

[0035] The source device 102 is used to provide the data to be screen-cast. For example, the data to be screen-cast can be the data currently displayed in the source device 102. The source device 102 can send the data to be screen-cast to the screen-casting device 101.

[0036] In a possible design, when the screen-casting device 101 is connected to the source device 102 (such as the screen-casting device 101 is inserted into the source device), the source device 102 can send the data to be screen-cast to the screen-casting device 101.

[0037] In another possible design, the screen-casting device 101 includes a screen-casting button. After the screen-casting device 101 is connected to the source device 102, in response to the user's operation on the screen-casting button, the source device 102 sends the data to be screen-cast to the screen-casting device 101.

[0038] The screen-cast receiving end 103 can receive the data to be screen-cast sent by the screen-casting device 101 and display the data to be screen-cast.

[0039] In a possible design, the screen-cast receiving end 103 is an all-in-one device for receiving and displaying. A wireless receiving unit paired with the screen-casting device 101 is set in the all-in-one device. The wireless receiving unit is used to receive the data to be screen-cast sent by the wireless transmission unit, decode the data to be screen-cast, and then display the decoded data to be screen-cast on the all-in-one device.

[0040] In another possible design, the screen-cast receiving end 103 includes a wireless receiving device and a display device. The wireless receiving device is wirelessly paired and connected with the screen-casting device 101, and the display device is connected to the wireless receiving device. For example, the display device is connected to the wireless receiving device through a Universal Serial Bus (USB) interface or a High-Definition Multimedia Interface (HDMI) interface. The wireless receiving device is used to receive the data to be screen-cast sent by the wireless transmission unit, decode the data to be screen-cast, and then send the decoded data to be screen-cast to the display device and display it on the display device.

[0041] The following specifically describes the screen-casting device 101 in conjunction with the accompanying drawings of the specification.

[0042] As Figure 2 shown, a screen-casting device provided by an embodiment of the present application is shown. The screen-casting device 101 can include: a screen-casting processing unit 201 and a wireless transmission unit 202. The screen-casting processing unit 201 is used to connect to the source device, and the wireless transmission unit 202 is used to wirelessly connect to the screen-cast receiving end 103. Among them, the source device can be an electronic device to be screen-cast, such as a PC, a tablet computer, etc.

[0043] In an embodiment of the present application, the screen mirroring processing unit 201 is configured to obtain multimedia data, encode the multimedia data, and send the encoded multimedia data to the wireless transmission unit 202. The wireless transmission unit 202 is configured to wirelessly send the encoded multimedia data to the screen mirroring receiving end 103, so that the screen mirroring receiving end 103 can display the multimedia data.

[0044] In an embodiment of the present application, the wireless transmission unit 202 includes a wireless transmission module.

[0045] Exemplarily, the wireless transmission module may include a WiFi module, a Bluetooth module, etc.

[0046] It should be noted that the multimedia data may include audio and video signals. Encoding the multimedia data may include: preprocessing the data (such as format conversion, frame sampling, cropping and scaling, etc.), compression, post-processing (such as filtering), etc. The embodiments of the present application do not limit this.

[0047] In an embodiment of the present application, the screen mirroring processing unit 201 and the wireless transmission unit 202 can be spliced or disassembled. The screen mirroring processing unit 201 and the wireless transmission unit 202 can be detachably connected to adjust the state between the screen mirroring processing unit 201 and the wireless transmission unit 202. The state between the screen mirroring processing unit 201 and the wireless transmission unit 202 includes: a connected state and a separated state; when the state between the screen mirroring processing unit 201 and the wireless transmission unit 202 is in the connected state, the connection between the screen mirroring processing unit 201 and the wireless transmission unit 202 is fixed by a preset fixing method.

[0048] Exemplarily, the processing unit 201 and the wireless transmission unit 202 are electrically connected. Combining Figure 2 it can be seen that the screen mirroring processing unit 201 and the wireless transmission unit 202 are not connected and are in a separated state. Or, as Figure 3 shown, the screen mirroring processing unit 201 and the wireless transmission unit 202 are already connected and are in a connected state.

[0049] It should be noted that the user can change the electrical connection state between the screen mirroring processing unit 201 and the wireless transmission unit 202 through a plug-and-play operation method.

[0050] It can be understood that the state between the screen mirroring processing unit and the wireless transmission unit is divided into a connected state and a separated state, enabling the user to choose to use screen mirroring devices with different functions, providing the user with more choices. Moreover, using a preset fixing method to fix the connection between the screen mirroring processing unit and the wireless transmission unit makes the connection between the screen mirroring processing unit and the wireless transmission unit more secure.

[0051] In an embodiment of the present application, when the state between the screen mirroring processing unit and the wireless transmission unit is a connected state, the wireless transmission unit can send the encoded multimedia data to the screen mirroring receiver through the wireless network. When the state between the screen mirroring processing unit and the wireless transmission unit is a separated state, the screen mirroring device can be used as a screen mirroring instruction triggering device to send a start / end screen mirroring instruction to the source device, so that the source device can send / stop sending the encoded multimedia data to the screen mirroring receiver after receiving the instruction.

[0052] Based on the above technical solution, the screen mirroring processing unit is used to obtain multimedia data, encode the multimedia data, and send the encoded multimedia data to the wireless transmission unit. The wireless transmission unit is used to send the encoded multimedia data to the screen mirroring receiver through the wireless network. Among them, the states between the screen mirroring processing unit and the wireless transmission unit include: a connected state and a separated state; when the state between the screen mirroring processing unit and the wireless transmission unit is in the connected state, the connection between the screen mirroring processing unit and the wireless transmission unit is fixed by a preset fixed method. That is to say, in the present application, the screen mirroring processing unit and the wireless transmission unit can be disassembled, so that the two are in a connected state or a separated state. In this way, the user can choose a screen mirroring device including the screen mirroring processing unit, or choose a screen mirroring device including the screen mirroring processing unit and the wireless transmission unit. This can not only reduce the user's usage cost, but also provide more choices for the user.

[0053] In a possible implementation manner, magnetic absorption components are respectively deployed on the screen mirroring processing unit 201 and the wireless transmission unit 202. The preset fixed method includes: fixing the connection between the screen mirroring processing unit 201 and the wireless transmission unit 202 through the magnetic absorption components.

[0054] Exemplarily, as Figure 4 shown, magnetic absorption components 401 can be respectively deployed on the connection sides of the screen mirroring processing unit 201 and the wireless transmission unit 202. Among them, the magnetic absorption components 401 can be embedded in the screen mirroring processing unit 201 and the wireless transmission unit 202. Or, the magnetic absorption components 401 can be externally attached to the screen mirroring processing unit 201 and the wireless transmission unit 202. For example, as Figure 4 can be seen, the magnetic absorption component 401 is externally attached to the screen mirroring processing unit 201, and the magnetic absorption component 401 is embedded in the wireless transmission unit 202. When the screen mirroring processing unit 201 and the wireless transmission unit 202 are in the connected state, the screen mirroring processing unit 201 and the wireless transmission unit 202 can increase the firmness of the connection through the magnetic absorption components.

[0055] It should be noted that the magnetic absorption components in the embodiments of the present application are not limited. For example, the magnetic absorption components can be magnets, ferromagnetic substances (such as iron, nickel, cobalt, etc.).

[0056] In a possible design, the screen mirroring processing unit 201 is deployed with a magnet, and the wireless transmission unit 202 is deployed with a ferromagnetic substance. Alternatively, the screen mirroring processing unit 201 is deployed with a ferromagnetic substance, and the wireless transmission unit 202 is deployed with a magnet. Alternatively, the screen mirroring processing unit 201 is deployed with a magnet, and the wireless transmission unit 202 is deployed with a magnet.

[0057] In another possible implementation, the screen mirroring processing unit 201 and the wireless transmission unit 202 are respectively provided with a protruding portion and a recessed portion. The preset fixing method includes: fixing the connection between the screen mirroring processing unit and the wireless transmission unit by embedding the protruding portion into the recessed portion.

[0058] Exemplarily, as Figure 5 shown, the screen mirroring processing unit 201 is provided with a recessed portion 501, and the wireless transmission unit 202 is provided with a protruding portion 502. When the state between the screen mirroring processing unit 201 and the wireless transmission unit 202 is in a connected state, the protruding portion 502 can be embedded into the recessed portion 501. Or, the screen mirroring processing unit 201 is provided with a protruding portion, and the wireless transmission unit 202 is provided with a recessed portion 501 (not shown in the figure).

[0059] In some embodiments, the screen mirroring processing unit 201 and the wireless transmission unit 202 can be connected through a connector. Combining Figure 4 it can be known that the screen mirroring processing unit 201 is installed with a first electrical connector 402, the wireless transmission unit 202 is installed with a second electrical connector 403, and the first electrical connector 402 and the second electrical connector 403 are respectively a male electrical connector and a female electrical connector. When the state between the screen mirroring processing unit 201 and the wireless transmission unit 202 is in a connected state, the screen mirroring processing unit 201 is electrically connected to the wireless transmission unit 202 through the first electrical connector 402 and the second electrical connector 403. Among them, the screen mirroring processing unit 201 is used to send the encoded multimedia data to the wireless transmission unit 202 through the first electrical connector 402 and the second electrical connector 403.

[0060] Exemplarily, the first electrical connector 402 can be a male electrical connector, and the second electrical connector 403 is a female electrical connector. Or, the first electrical connector 402 can be a female electrical connector, and the second electrical connector 403 can be a male electrical connector. For example, the screen mirroring processing unit 201 can be connected to the wireless transmission unit 202 through the pins and sockets of the connector.

[0061] It should be noted that the types of the first electrical connector and the second electrical connector are not limited in the embodiments of the present application. For example, the connector can be a board-to-board connector, a socket connector, a surface-mount connector, a pogopin connector, etc.

[0062] In some embodiments, the screen mirroring processing unit 201 and the wireless transmission unit 202 can be connected through a connection interface. The first connection interface is soldered to the screen mirroring processing unit 201, and the second connection interface is soldered to the wireless transmission unit 202.

[0063] Exemplarily, the first connection interface and the second connection interface can be any one of the following: USB interface, HDMI, Type-C interface. For example, taking the first connection interface and the second connection interface as Type-C female sockets, the first connection interface and the second connection interface can be connected using a double-ended Type-C male head, and the double-ended Type-C male head can be connected through a transmission cable, that is, a Type-C male head is provided on each side of the transmission cable.

[0064] Exemplarily, the transmission cable can be a coaxial cable, a twisted pair, a strip line, a wire, etc.

[0065] In some embodiments, the screen mirroring processing unit includes: a data acquisition module and a data processing module. The data acquisition module is connected to the data processing module, and the data processing module is connected to the wireless transmission unit. The data acquisition module is used to acquire multimedia data and send the multimedia data to the data processing module. The data processing module is used to encode the multimedia data and send the encoded multimedia data to the wireless transmission unit.

[0066] That is to say, the data acquisition module is directly connected to the data processing module without data format conversion. Therefore, the data acquisition module can directly send data to the data processing module to simplify the data transmission process.

[0067] In some embodiments, the screen mirroring processing unit includes: a data acquisition module, a data conversion module, and a data processing module. As Figure 6 shown, the data conversion module 602 is respectively connected to the data acquisition module 601 and the data processing module 603.

[0068] The data acquisition module 601 is used to acquire multimedia data in a first format and send the multimedia data in the first format to the data conversion module 602. The data conversion module is used to convert the multimedia data in the first format into multimedia data in a second format and send the multimedia data in the second format to the data processing module; the second format is the data format supported by the data processing module 603.

[0069] Exemplarily, the data acquisition module 601 can be a hardware interface, such as a USB interface, a TYPEC interface, etc. The data conversion module 602 can be an interface conversion chip, such as an LT7911D chip.

[0070] In a possible design, the data acquisition module 601 can receive multimedia data in a first format from the source device 101.

[0071] In a possible design, the screen mirroring processing unit 201 further includes a storage module 604, which can be used to store multimedia data. The storage module 604 is connected to the data processing module 603. The storage module can send multimedia data to the screen mirroring processing unit 201.

[0072] Exemplarily, the storage module 604 can be an embedded memory (Embedded Multi Media Card, eMMC), a Flash memory, etc. The storage module 604 can be connected to the data processing module 603 through a Secure Digital Input and Output (SDIO) interface.

[0073] It should be noted that the embodiments of the present application do not limit the first format and the second format. For example, the first format can be an Embedded DisplayPort (eDP) format, and the second format is a Mobile Industry Processor Interface (MIPI) format. Another example is that the first format or the second format can be a Video Graphics Array (VGA), a Digital Visual Interface (DVI), an analog video signal format, a Miracast format, etc.

[0074] The data processing module 603 is used to compress the multimedia data in the second format and send the compressed multimedia data in the second format to the wireless transmission unit.

[0075] Exemplarily, the data processing module 603 can be a processor chip, such as an RV1126 chip, a Field Programmable Gate Array (FPGA), an ARM, an MPSOC, etc.

[0076] Optionally, the data processing module 603 can also be used to preprocess the multimedia data in the second format.

[0077] Exemplarily, the data processing module 603 can adjust the resolution of the multimedia data, crop the multimedia data, etc.

[0078] It can be understood that the data conversion module is respectively connected to the data acquisition module and the data processing module, so that after the data acquisition module obtains data, it first sends the multimedia data to the data conversion module, and only after the format of the multimedia data is converted will it be transmitted to the data processing module. In this way, not only can the efficiency of data transmission be improved, but also it can be ensured that the data formats received by the data processing module are all supported formats.

[0079] In some embodiments, the screen mirroring processing unit further includes: a screen mirroring button. The screen mirroring button is used to trigger the sending of the encoded multimedia data to the screen mirroring receiving end.

[0080] Exemplarily, as Figure 7 shown, the screen mirroring button 701 is connected to the data processing module 603. The screen mirroring button 701 can receive the operation of the user and trigger the data processing module 603 to generate an operation instruction. After that, the data processing module 603 can send the operation instruction to the wireless transmission unit through a connector or a transmission cable.

[0081] For example, when the screen mirroring device 101 is not in the screen mirroring state, in response to the operation of the screen mirroring button 401, the screen mirroring processing unit can generate a start screen mirroring instruction. Or, when the screen mirroring device 101 is in the screen mirroring state, in response to the operation of the screen mirroring button 401, the screen mirroring processing unit can generate a stop screen mirroring instruction.

[0082] It should be noted that the type of the screen mirroring button in the embodiments of the present application is not limited. For example, the screen mirroring button can be a mechanical button, such as when the user presses the screen mirroring button to trigger the generation of a screen mirroring / ending screen mirroring instruction. Or, the screen mirroring button can be a non-contact button (such as an infrared induction button, a capacitive button, etc.), and the user touches (or approaches) the screen mirroring button to trigger the generation of a screen mirroring / ending screen mirroring instruction.

[0083] It can be understood that the screen mirroring processing unit includes a screen mirroring button, enabling the user to control the screen mirroring device through the screen mirroring button, which improves the convenience of user operation.

[0084] In some embodiments, the wireless transmission unit further includes: a screen mirroring button. The screen mirroring button is connected to the wireless transmission module.

[0085] That is to say, the touch button can be set in the screen mirroring processing unit or in the wireless transmission unit, and the embodiments of the present application do not limit this.

[0086] Optionally, the screen mirroring processing unit 201 may further include a memory module 702, and the memory module 702 is used to store the cached data in the screen mirroring device.

[0087] Exemplarily, when the screen mirroring device is running, the memory module 702 can cache the system data, data to be screen mirrored, etc. of the screen mirroring device.

[0088] It can be understood that the memory module 702 stores the cached data in the screen mirroring device, and the screen mirroring device can read the cached data at a relatively high speed. Therefore, the efficiency of transmitting the data to be screen mirrored can be improved, thereby enhancing the screen mirroring effect.

[0089] In some embodiments, the screen mirroring receiving end is connected to the screen mirroring receiving end, and both the wireless transmission unit and the screen mirroring receiving end support the wireless screen mirroring protocol.

[0090] Exemplarily, the wireless screen mirroring protocol can be the Miracast protocol, the AirPlay protocol, the DLNA protocol, the WDHI protocol, etc.

[0091] The wireless transmission unit 202 is further configured to send the encoded multimedia data to the screen mirroring receiving end through a wireless network. The screen mirroring receiving end is configured to receive the encoded multimedia data sent by the wireless transmission unit 202 and display the multimedia data on the screen mirroring receiving end.

[0092] That is to say, the wireless transmission unit can send the encoded multimedia data to the screen mirroring receiving end, and the screen mirroring receiving end receives the encoded multimedia data sent by the wireless transmission unit. After that, the screen mirroring receiving end can transmit the encoded multimedia data to the screen mirroring receiving end.

[0093] In a possible design, the screen mirroring receiving end can be connected to the screen mirroring receiving end through an interface. Alternatively, the screen mirroring receiving end can be integrated in the screen mirroring receiving end.

[0094] Although the present application has been described in conjunction with specific features and their embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the present application. Accordingly, the present specification and the drawings are merely exemplary illustrations of the present application defined by the appended claims, and are considered to have covered any and all modifications, variations, combinations, or equivalents within the scope of the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

[0095] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A screen projector, characterized in that: The screen projection device comprises: a screen projection processing unit and a wireless transmission unit, wherein the screen projection processing unit is used to connect to a source device, and the wireless transmission unit is used to wirelessly connect to a screen projection receiving end; The screen projection processing unit is used to obtain multimedia data from the source device, encode the multimedia data, and send the encoded multimedia data to the wireless transmission unit; The wireless transmission unit is used to send the encoded multimedia data to the screen projection receiving end, so that the screen projection receiving end displays the multimedia data; Among them, the state between the screen projection processing unit and the wireless transmission unit includes: a connected state and a separated state; when the state between the screen projection processing unit and the wireless transmission unit is in the connected state, the connection between the screen projection processing unit and the wireless transmission unit is fixed by a preset fixing method.

2. The screen projector according to claim 1, characterized in that: The screen projection processing unit and the wireless transmission unit are respectively provided with magnetic attraction components; The preset fixing method includes: fixing the connection between the screen projection processing unit and the wireless transmission unit through the magnetic attraction component.

3. The screen projector according to claim 1, characterized in that: The screen projection processing unit and the wireless transmission unit are respectively provided with a convex portion and a concave portion; The preset fixing method includes: embedding the protrusion into the recessed portion to fix the connection between the projection processing unit and the wireless transmission unit.

4. The screen projector according to any one of claims 1 to 3, characterized in that: The projection processing unit is installed with a first electrical connector, and the wireless transmission unit is installed with a second electrical connector, wherein the first electrical connector and the second electrical connector are respectively a male electrical connector and a female electrical connector; When the state between the screen projection processing unit and the wireless transmission unit is in the connection state, the screen projection processing unit is electrically connected to the wireless transmission unit through the first electrical connector and the second electrical connector; The screen projection processing unit is also used to send the encoded multimedia data to the wireless transmission unit through the first electrical connector and the second electrical connector.

5. The screen projector according to claim 4, characterized in that: The first electrical connector and the second electrical connector are any one of the following: a pogo pin connector, a board-to-board connector, and a socket connector.

6. The screen projector according to any one of claims 1 to 3, characterized in that: The screen projection processing unit further includes: a screen projection button; The screen projection button is used to trigger sending or stop sending the encoded multimedia data to the screen projection receiving end.

7. The screen projector according to any one of claims 1 to 3, characterized in that: The wireless transmission unit also includes: a screen projection button; The screen projection button is used to trigger sending or stop sending the encoded multimedia data to the screen projection receiving end.

8. The screen projector according to any one of claims 1 to 3, characterized in that: The screen projection processing unit includes: a data acquisition module and a data processing module, and the data acquisition module is connected to the data processing module; The data acquisition module is used to acquire the multimedia data and send the multimedia data to the data processing module; The data processing module is used to encode the multimedia data and send the encoded multimedia data to the wireless transmission unit.

9. The screen projector according to claim 8, characterized in that: The screen projection processing unit further includes a conversion module, which is connected to the data acquisition module and the data processing module respectively; The conversion module is used to obtain the multimedia data in a first format and convert the multimedia data in the first format into multimedia data in a second format; the second format is a data format supported by the data processing module; The conversion module is further used to send the multimedia data in the second format to the data processing module.

10. The screen projector according to any one of claims 1 to 3, characterized in that: The wireless transmission unit is used to send the encoded multimedia data to the screen projection receiving end through a wireless network, and both the wireless transmission unit and the screen projection receiving end support the wireless screen projection protocol; The screen projection receiving end is used to receive the encoded multimedia data sent by the wireless transmission unit and display the multimedia data.

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