A same screen device with built-in wireless audio receiving function

Abstract

The application discloses a same-screen device with built-in wireless audio receiving function, which comprises a same-screen device body, a same-screen unit arranged in the same-screen device body and used for receiving and decoding output of electronic device video data, a wireless microphone receiving unit arranged in the same-screen device body and used for receiving wireless microphone signals, and a USB HUB module arranged in the same-screen device body and comprising an uplink interface and at least two downlink interfaces, wherein the first downlink interface is electrically connected with the same-screen unit, and the second downlink interface is electrically connected with the wireless microphone receiving unit; a first interface is installed on the same-screen device body, the first interface is electrically connected with the uplink interface, and the first interface is connected with a connection port of the electronic device through a data line. The application connects the electronic device, the same-screen unit and the microphone receiving unit through the USB protocol, realizes mutual data interaction transmission, achieves the function of simultaneous use, and improves the picture and sound quality of video shooting.

Description

Technical Field

[0001] This utility model relates to the field of screen mirroring technology for electronic devices, and in particular to a screen mirroring device with built-in wireless audio receiving function. Background Technology

[0002] In recent years, taking selfies with mobile phones has become a popular lifestyle and a common technique for media creation. Because front-facing cameras have lower resolution and image quality compared to rear cameras, and suffer from distortion, warping, and mirroring issues, some selfie sticks have been equipped with mirrors to help users see if they are in the frame and their expressions when using the rear camera. However, the mirrors are often too small and inconvenient to use. This led to the development of screen mirroring devices, which have become the next generation of selfie gadgets. The principle behind screen mirroring devices is that the phone's built-in screen mirroring software encodes the phone's screen and transmits it wirelessly or via wired connection to the screen mirroring device. The device then automatically decodes the received video data and displays it on its screen, achieving screen mirroring with the phone.

[0003] There are two types of screen mirroring technologies: wireless and wired. Wireless screen mirroring involves the screen mirroring device establishing a network connection with the phone's Wi-Fi signal; wired screen mirroring involves the screen mirroring device connecting to the phone's Type-C interface via a USB cable, establishing both UVC and DP (DISPLAYPORT) video transmission protocols for data transmission. Compared to wireless screen mirroring, wired screen mirroring does not require sending data through the phone's Wi-Fi (eliminating signal interference and packet loss issues), resulting in shorter video transmission latency, less phone resource consumption, and a smoother viewing experience.

[0004] However, mobile phones only have one Type-C port. If a wired screen mirroring method is used (the screen mirroring device will occupy the phone's Type-C port), the phone cannot connect to other devices or charge. This is especially problematic when shooting video, as phones often require an external USB wireless lavalier microphone for better audio recording. Once the phone is connected to a screen mirroring device, an external microphone cannot be connected, and vice versa. Utility Model Content

[0005] This utility model provides a screen mirroring device with built-in wireless audio receiving function to solve the technical problem that external microphones cannot be connected when electronic devices are connected to screen mirroring devices.

[0006] To achieve the above objectives, this utility model provides a screen mirroring device with built-in wireless audio receiving function, comprising: a screen mirroring device body; a screen mirroring unit disposed within the screen mirroring device body for receiving and decoding video data from an electronic device; a wireless microphone receiving unit disposed within the screen mirroring device body for receiving wireless microphone signals; a USB HUB module disposed within the screen mirroring device body, including an uplink interface and at least two downlink interfaces, wherein the first downlink interface is electrically connected to the screen mirroring unit, and the second downlink interface is electrically connected to the wireless microphone receiving unit; and a first interface installed on the screen mirroring device body, wherein the first interface is electrically connected to the uplink interface and connected to the connection port of the electronic device via a data cable.

[0007] Preferably, the screen mirroring device further includes a second interface and a power supply unit. The second interface is installed on the screen mirroring device body and is used to connect to an external power source. The power supply unit is electrically connected to the second interface, the screen mirroring unit, the wireless microphone receiving unit, and the USB HUB module.

[0008] Preferably, the screen mirroring device further includes a storage slot disposed on the screen mirroring device body, and the shape of the storage slot is consistent with the shape of the external wireless microphone transmitter.

[0009] Preferably, a first magnet is provided in the storage slot, and a second magnet corresponding to the first magnet is provided on the wireless microphone transmitter. The first magnet and the second magnet magnetically attract each other to fix the wireless microphone transmitter in the storage slot.

[0010] Preferably, the storage slot is further provided with a spring pin, which is electrically connected to the power supply circuit inside the screen mirroring device body, and the wireless microphone transmitter is provided with a metal contact that is compatible with the spring pin.

[0011] Preferably, the wireless microphone transmitter is equipped with several function buttons, and the wireless microphone receiving unit has a built-in HID protocol chip, which can convert the signals of the function buttons into USB HID device commands and transmit them to the electronic device through the USB HUB module to achieve reverse control.

[0012] Preferably, the wireless microphone transmitter is also provided with an indicator light to display the working status of the wireless microphone transmitter, and the function buttons include a shutter button and a mode button, which are used to enable the electronic device to execute different commands.

[0013] Preferably, the screen mirroring unit includes a screen disposed on the screen mirroring device body, the screen being used to display the screen of the electronic device.

[0014] Preferably, the first interface, the second interface, and the connection port of the electronic device are all Type-C interfaces.

[0015] Preferably, the power supply unit further includes a battery for energy storage, which is connected to an external power source for charging via the second interface. The battery can power the screen mirroring unit, the wireless microphone receiving unit, and the USB HUB module.

[0016] The present invention has the following beneficial effects: The screen mirroring device with built-in wireless audio receiving function of the present invention connects the electronic device to the first interface via a data cable. The first interface connects the screen mirroring unit and the wireless microphone receiving unit simultaneously via a USB HUB module, thereby connecting the electronic device, the screen mirroring unit and the wireless microphone receiving unit via the USB protocol to achieve mutual data interaction and transmission, and achieve the purpose of simultaneous use. This solves the problem that the microphone cannot be used to record sound when the electronic device is used with the screen mirroring device, thereby improving the picture and sound quality of video shooting.

[0017] In addition to the objectives, features, and advantages described above, the embodiments of this utility model have other objectives, features, and advantages. The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the embodiments of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 This is a circuit diagram of the screen mirroring device with built-in wireless audio receiving function of this utility model;

[0020] Figure 2 This is a schematic diagram of the screen mirroring device with built-in wireless audio receiving function and equipped with a wireless microphone transmitter, according to this utility model.

[0021] Figure 3 This is a schematic diagram of the screen mirroring device with built-in wireless audio receiving function of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the wireless microphone transmitter of this utility model.

[0023] The reference numerals in the attached figures are as follows:

[0024] 10. Screen mirroring unit; 11. Screen mirroring unit; 111. Screen; 12. Wireless microphone receiving unit; 13. USB HUB module; 131. Uplink interface; 132. Downlink interface; 1321. First downlink interface; 1322. Second downlink interface; 14. First interface; 15. Second interface; 16. Power supply unit; 17. Storage slot; 171. Spring pin; 20. Wireless microphone transmitter; 201. Metal contact; 202. Shutter button; 203. Mode button; 204. Indicator light. Detailed Implementation

[0025] The technical solutions of the present utility model embodiments are further described in detail below with reference to the accompanying drawings and specific examples. Furthermore, unless otherwise defined, the technical or scientific terms used in this application description should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. Terms indicating orientation, such as "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," used in this application description are only used to indicate relative directions or positional relationships, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation on this application. Terms such as "first," "second," "third," and similar terms used in this application description are only used for descriptive purposes to distinguish different components, and should not be construed as indicating or implying relative importance. Terms such as "a," "one," or "the," used in this application description, should not be construed as an absolute limitation on quantity, but should be understood as indicating the existence of at least one. The use of terms such as "including" or "comprising" in the description of this application means that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0026] It should also be noted that, unless otherwise explicitly specified and limited, the terms such as “installation,” “connection,” and “linkage” used in the description of this application should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal connection of two components. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances.

[0027] like Figures 1 to 3 As shown, the screen mirroring device with built-in wireless audio receiving function in this embodiment includes:

[0028] Screen mirroring device body 10;

[0029] The screen mirroring unit 11 is located inside the screen mirroring device body 10 and is used to receive video data from electronic devices and decode and output it.

[0030] The wireless microphone receiving unit 12 is located inside the screen mirroring device body 10 and is used to receive wireless microphone signals.

[0031] USB HUB module 13 is located inside the screen mirroring device body 10, including an uplink interface 131 and at least two downlink interfaces 132. The first downlink interface 1321 is electrically connected to the screen mirroring unit 11, and the second downlink interface 1322 is electrically connected to the wireless microphone receiving unit 12.

[0032] The first interface 14 is installed on the screen mirroring device body 10. The first interface 14 is electrically connected to the uplink interface 131 and is connected to the connection port of the electronic device via a data cable.

[0033] In this embodiment, the electronic device can be a mobile phone, tablet computer, or other device with video shooting, storage, and playback functions. This embodiment uses a mobile phone as an example. The connection port between the first interface 14 and the mobile phone can be a Type-A interface, Type-B interface, Type-C interface, Mini-B interface, or Micro-B interface, etc. In this embodiment, the connection port between the first interface 14 and the mobile phone is specifically a Type-C interface, and the first interface 14 is connected to the electronic device via a Type-C to Type-C data cable.

[0034] The USB HUB (Universal Serial Bus Hub) module 13 expands a single USB interface into multiple USB interfaces, enabling multiple devices to connect to the host simultaneously. Its chip includes one uplink interface 131 and multiple downlink interfaces 132. The uplink interface 131 connects to the host's USB interface (the Type-C interface of the mobile phone in this embodiment), and the downlink interfaces 132 can connect to multiple peripherals (the screen mirroring unit 11 and the microphone receiving unit 12 in this embodiment). The USB HUB module 13 uses internal logic circuitry to relay and amplify the USB signals between the host and peripherals, ensuring orderly data transmission between multiple devices. For example, when the mobile phone sends video data to the screen mirroring unit 11, the USB HUB chip identifies the target device address and only forwards the signal to the corresponding downlink interface 132 of the screen mirroring unit 11, avoiding data conflicts. The USB HUB module 13 also supports the host to "enumerate" multiple downlink devices (i.e., identify device types and assign addresses), allowing the host to manage multiple peripherals as independent devices. For example, in this application, the mobile phone can connect via USB... HUB module 13 simultaneously recognizes screen mirroring unit 11 and microphone receiving unit 12.

[0035] In this embodiment, when the mobile phone is connected to the first interface 14 via a C-to-C data cable, the mobile phone's data passes through the data cable and the first interface 14 to reach the USB HUB module 13. The USB HUB module 13 distributes the data to the screen mirroring unit 11 and the wireless microphone receiving unit 12. At the same time, the mobile phone also supplies power to the screen mirroring unit 11, the wireless microphone receiving unit 12 and the USB HUB module 13 via the data cable.

[0036] This embodiment of the screen mirroring device with built-in wireless audio receiving function connects the mobile phone, screen mirroring unit 11 and microphone receiving unit 12 via USB protocol to enable mutual data exchange and transmission, achieving the function of simultaneous use. This solves the problem that current mobile phones only have one interface and cannot use the microphone to pick up sound when using the screen mirroring device, thereby improving the picture and sound quality of video shooting.

[0037] In some possible embodiments, the screen mirroring device also includes a second interface 15 and a power supply unit 16.

[0038] The second interface 15 is installed on the screen mirroring unit 10 and is used to connect to an external power source. The power supply unit 16 is electrically connected to the second interface 15, the screen mirroring unit 11, the wireless microphone receiving unit 12, and the USB HUB module 13.

[0039] The second interface 15 is a Type-C interface, and the power unit 16 includes a power protocol chip. In this embodiment, the USB HUB module 13 also integrates a power management module. Through the cooperation of the power protocol chip and the power management module, external power can reach the mobile phone to charge the mobile phone through the second interface 15, the power unit 16, the USB HUB module 13, the first interface 14, and the data cable. Since the data end and the power end of the Type-C interface can operate independently at the same time, the mobile phone can be charged by connecting an external power source when the screen is mirrored via wired connection, so as to achieve the purpose of charging and using the phone at the same time and avoiding the mobile phone losing power during the shooting process.

[0040] It should be noted that when the second interface 15 is connected to an external power source, the power supply of the phone's Type-C interface is in charging mode, while the USB HUB module 13, screen mirroring unit 11, and wireless microphone receiving unit 12 are powered by the power supply unit 16; when the second interface 15 is not connected to an external power source, the USB HUB module 13, screen mirroring unit 11, and wireless microphone receiving unit 12 are powered by the phone.

[0041] In some possible embodiments, the screen mirroring device also includes a storage slot 17 disposed on the screen mirroring device body 10, the shape of which is consistent with the shape of the external wireless microphone transmitter 20.

[0042] Specifically, in this embodiment, the storage slot 17 is located on the top of the screen mirroring device body 10. The wireless microphone transmitter 20 is placed in the storage slot 17, which makes it convenient to carry the wireless microphone transmitter 20 and prevents it from being lost, thereby improving the user experience.

[0043] In some possible embodiments, a first magnet is provided in the storage slot 17, and a second magnet corresponding to the first magnet is provided on the wireless microphone transmitter 20. The first magnet and the second magnet magnetically attract each other to fix the wireless microphone transmitter 20 in the storage slot 17.

[0044] The first magnet and the second magnet have opposite polarities. The first magnet can be set at the bottom or side wall of the storage slot 17. In this embodiment, the first magnet is specifically set at the bottom of the storage slot 17, and the second magnet is correspondingly set at the bottom of the wireless microphone transmitter 20. When the wireless microphone transmitter 20 is placed in the storage slot 17, it is fixed by magnetic attraction to make the wireless microphone transmitter 20 more stable and avoid it from falling and being lost when carried.

[0045] In some possible embodiments, such as Figure 3 and 4 As shown, the storage slot 17 is also provided with a spring pin 171, which is electrically connected to the power supply circuit inside the screen mirroring device body 10. The wireless microphone transmitter 20 is provided with a metal contact 201 that is compatible with the spring pin 171.

[0046] Among them, the Pogo Pin connector 171 is a miniature connector used for precision electrical connections. The elastic pressure of the spring ensures that the pin shaft and the contact point are in close contact, so as to achieve stable current or signal transmission. In this embodiment, the Pogo Pin 171 is located at the bottom of the receiving groove. The Pogo Pin 171 is connected to the power supply unit 16. When an external power supply is connected, the Pogo Pin 171 can transmit current. The metal contact 201 is connected to the power module in the wireless microphone transmitter 20.

[0047] When the wireless microphone transmitter 20 is placed in the storage slot 17, the metal contact 201 on the wireless microphone transmitter 20 will press the spring pin 171 tightly. The external power supply is connected to the metal contact 201 through the second interface 15, the power supply unit 16, and the spring pin 171, thereby powering the wireless microphone transmitter 20 and enabling the wireless microphone transmitter 20 to be charged through the screen mirroring device.

[0048] In some possible embodiments, such as Figure 2 As shown, the wireless microphone transmitter 20 is equipped with several function buttons, and the wireless microphone receiver unit 12 has a built-in HID protocol chip, which can convert the signals of the function buttons into USB HID device commands, and transmit them to electronic devices through the USB HUB module 13 to achieve reverse control.

[0049] When the wireless microphone receiving unit 12 receives the button signal from the wireless microphone transmitter 20, the HID protocol chip can enumerate the wireless microphone receiving unit 12 as a USB HID device, thereby converting the microphone button signal into USB HID device commands, such as shutter release for taking a picture, start / stop for video recording, zoom, etc. Since the wireless microphone receiving unit 12 is connected to the mobile phone's USB bus, the USB HID device commands can directly control the mobile phone.

[0050] Specifically, the wireless microphone transmitter 20 is also equipped with an indicator light 204 to display the working status of the wireless microphone transmitter 20. The function buttons include a shutter button 202 and a mode button 203, which are used to enable the electronic device to execute different commands.

[0051] Indicator light 204 is electrically connected to the power module inside the wireless microphone transmitter 20. The on / off state and / or color change of indicator light 204 can display the working status of the wireless microphone transmitter 20, making it easy for users to intuitively connect to the status of the wireless microphone transmitter 20. When shutter button 202 is pressed, it generates an electrical signal. This electrical signal is received by wireless microphone receiving unit 12 and converted into a USB HID device command, which is then transmitted to the mobile phone to control the mobile phone's shutter for taking pictures. Similarly, mode button 203 can enable the mobile phone to execute commands such as start / stop video recording and zoom, allowing users to remotely control the mobile phone without the need for an additional Bluetooth connection.

[0052] In some possible embodiments, the screen mirroring unit 11 includes a screen 111 disposed on the screen mirroring device body 10, the screen 111 being used to display the screen of an electronic device.

[0053] The resolution of screen 111 is set according to actual needs. The screen sharing unit 11 also includes a control circuit board. The power input terminal of the control circuit board is connected to the power supply unit 16, the video input terminal of the control circuit board is connected to the first downlink interface 1321, the power supply terminal of screen 111 is connected to the power supply of the control circuit board, and the video output terminal of the control circuit board is connected to the signal terminal of screen 111, so that screen 111 can acquire the mobile phone screen in real time and display it on the screen.

[0054] In some possible embodiments, the power supply unit 16 also includes a battery for energy storage, which is connected to an external power source for charging via the second interface 15. The battery can power the screen mirroring unit 11, the wireless microphone receiving unit 12, and the USB HUB module 13.

[0055] In this embodiment, the battery is a rechargeable lithium battery. When an external power source is connected, the external power source charges the battery while charging the mobile phone. When the external power source is disconnected, the battery can charge the mobile phone. When the battery power is higher than a preset threshold, the first interface 14 does not supply power to the screen mirroring device, but supplies power to the USB HUB module 13, the screen mirroring unit 11, and the wireless microphone receiving unit 12 through the battery. This allows the screen mirroring device to also function as a power bank, improving its adaptability and enhancing the user experience.

[0056] The screen mirroring device with built-in wireless audio receiving function provided in the above embodiments of this application has at least the following characteristics:

[0057] 1. By using the hub function of the USB HUB module 13, the screen mirroring unit 11 and the wireless microphone receiving unit 12 can share the Type-C interface of the mobile phone, so that the audio function can be used when playing video on the same screen, thereby improving the picture and audio quality of video shooting.

[0058] 2. By cooperating with the power unit 16 through the second Type-C interface 15, an external power source can be connected to charge the mobile phone when wired screen mirroring and audio recording are being performed, thus avoiding power loss of the mobile phone during shooting.

[0059] 3. The magnetic attachment of the storage slot 17 can stably fix the wireless microphone transmitter 20, reducing the risk of loss. The spring pin 171 enables contact charging, eliminating the need for an additional charging cable and making it more convenient to charge the microphone transmitter 20.

[0060] 4. After the function button signals of the wireless microphone transmitter 20 are received and transmitted by the wireless microphone receiver 12, the wireless microphone receiver 12 can be enumerated as a USB HID device, thereby directly controlling the mobile phone to perform functions such as taking pictures, starting and stopping video recording, and zooming through USB HID commands, realizing remote operation of the mobile phone and improving operation efficiency.

[0061] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A screen mirroring device with built-in wireless audio receiving function, characterized in that, include: Screen mirroring device (10); The screen mirroring unit (11) is located inside the screen mirroring device body (10) and is used to receive video data from the electronic device and decode and output it. A wireless microphone receiving unit (12) is located inside the screen mirroring device body (10) and is used to receive wireless microphone signals; The USB HUB module (13) is located inside the screen mirroring device body (10) and includes an uplink interface (131) and at least two downlink interfaces (132). The first downlink interface (1321) is electrically connected to the screen mirroring unit (11), and the second downlink interface (1322) is electrically connected to the wireless microphone receiving unit (12). The first interface (14) is installed on the screen mirroring device body (10). The first interface (14) is electrically connected to the uplink interface (131) and connected to the connection port of the electronic device via a data cable.

2. A screen mirroring device with built-in wireless audio receiving function according to claim 1, characterized in that, It also includes a second interface (15) and a power supply unit (16). The second interface (15) is installed on the screen mirroring device body (10) for connecting to an external power source. The power supply unit (16) is electrically connected to the second interface (15), the screen mirroring unit (11), the wireless microphone receiving unit (12), and the USB HUB module (13).

3. A screen mirroring device with built-in wireless audio receiving function according to claim 1, characterized in that, It also includes a storage slot (17) located on the screen mirroring device body (10), the shape of which is consistent with the shape of the external wireless microphone transmitter (20).

4. A screen mirroring device with built-in wireless audio receiving function according to claim 3, characterized in that, The storage slot (17) is provided with a first magnet, and the wireless microphone transmitter (20) is provided with a second magnet corresponding to the first magnet. The first magnet and the second magnet magnetically attract each other to fix the wireless microphone transmitter (20) in the storage slot (17).

5. A screen mirroring device with built-in wireless audio receiving function according to claim 3, characterized in that, The storage slot (17) is also provided with a spring pin (171), which is electrically connected to the power supply circuit in the screen mirroring device body (10). The wireless microphone transmitter (20) is provided with a metal contact (201) that is compatible with the spring pin (171).

6. A screen mirroring device with built-in wireless audio receiving function according to claim 3, characterized in that, The wireless microphone transmitter (20) is equipped with several function buttons. The wireless microphone receiver (12) has a built-in HID protocol chip, which can convert the signals of the function buttons into USB HID device commands and transmit them to the electronic device through the USB HUB module (13) to achieve reverse control.

7. A screen mirroring device with built-in wireless audio receiving function according to claim 6, characterized in that, The wireless microphone transmitter (20) is also provided with an indicator light (204) to display the working status of the wireless microphone transmitter (20). The function buttons include a shutter button (202) and a mode button (203). The shutter button (202) and the mode button (203) are used to enable the electronic device to execute different commands.

8. A screen mirroring device with built-in wireless audio receiving function according to claim 1, characterized in that, The screen sharing unit (11) includes a screen (111) disposed on the screen sharing device body (10), and the screen (111) is used to display the screen of the electronic device.

9. A screen mirroring device with built-in wireless audio receiving function according to claim 1, characterized in that, The first interface (14), the second interface (15), and the connection port of the electronic device are all Type-C interfaces.

10. A screen mirroring device with built-in wireless audio receiving function according to claim 2, characterized in that, The power unit (16) also includes a battery for energy storage. The battery is connected to an external power source for charging via the second interface (15). The battery can power the screen sharing unit (11), the wireless microphone receiving unit (12), and the USB HUB module (13).

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