Abstract: This application provides a data transmission method and a data transmission device. The data transmission device is provided with a microcontroller, a power supply, and a vibration sensor. When the vibration sensor detects that the user moves the data transmission device, the microcontroller controls the power supply to supply power to the data transmission module, so that the data transmission module starts to activate before the data transmission device is connected to the electronic device, thereby improving the response speed and work efficiency of the data transmission device. Meanwhile, the power supply does not need to supply power to the data transmission module constantly, which reduces the capacity and volume of the power supply.

Abstract: The present disclosure discloses an electromagnetic film outlet structure, a direct-type backlight display module and a display.

Abstract: The present disclosure, applying to the technical field of interaction intelligent tablets, relates to an annotation display method, device, apparatus and a storage medium. The method comprises: receiving touch data, wherein the touch data is data of a touch point caused by an annotation event that occurs on a touch screen of an interaction intelligent tablet; and displaying an annotation handwriting using the interaction intelligent tablet, wherein the annotation handwriting is obtained according to the touch data, and is drawn on a mouse layer; wherein the mouse layer is a transparent layer and is located above a system view layer. The embodiments of the present disclosure solve the problem that the system view cannot be refreshed when the writing acceleration is performed, and at the same time realize the object of quickly displaying the annotation handwriting.

Abstract: The present disclosure includes a method and a system for wireless screen transmission, the method includes: receiving first feedback information transmitted from each computer among multiple computers when the each computer detects that itself is in a first display state, where the first display state refers to that the each computer detects a change in the desktop image within a first preset time period, where all of the multiple computers simultaneously perform wireless screen transmission with a receiving terminal, and the desktop image of the each computer is respectively displayed on a corresponding split screen of the receiving terminal; and displaying, when it is determined according to the first feedback information that only one computer of the multiple computers is in the first display state, a split screen corresponding to the one computer in the first display state in full-screen.

Abstract: The present disclosure relates to a method and a system for remote collaboration, the method includes: receiving mouse operation information of a user in the master computer which is captured and transmitted by the master computer; detecting a position of the mouse cursor on the master split screen in accordance with the mouse operation information, then when the cursor arrives at a boundary of the master split screen and continues to move in a direction away from the master split screen, detecting a current split screen connecting to the boundary, and displaying the cursor on the current split screen; and receiving interaction information transmitted by the master computer, and transferring the interaction information to a current slave computer corresponding to the current split screen, so as to cause the current slave computer to execute the interaction information, where the interaction information is the information which is obtained and intercepted by the master computer when the master computer detects

Abstract: The present disclosure discloses a method, device, and system for controlling screen projection. The method comprises a first terminal acquiring a device list, wherein the device list includes identification information of a second terminal, and the second terminal is a terminal that accesses a same server as the first terminal; the first terminal receiving a selection instruction, wherein the selection instruction is used to select target identification information from the device list; the first terminal sending a screen projection control instruction to the server, wherein the screen projection control instruction includes target identification information, and the screen projection control instruction is forwarded to a target second terminal corresponding to the target identification information via the server, so as to control the target second terminal to project the screen to a first screen projection receiving end.

Abstract: A touch panel control circuit and a touch panel. The touch panel control circuit includes a touch transfer module, a main chip and a signal source interface. An input interface (A) of the touch transfer module is configured to be connected to an output interface of a touch input device to receive a first touch coordinate signal form the output interface of the touch input device. A first transmission interface of the touch transfer module is connected to a touch information transmission interface (E) of the main chip. A second transmission interface (B2) of the touch transfer module is connected to the signal source interface.

Abstract: A data transmission device includes a TypeC interface, a wireless module, a first data transformation chip and a microprocessor, wherein the TypeC interface is connected with the first data transformation chip, the first data transformation chip is connected with the TypeC interface and the microprocessor, and the microprocessor is connected with the wireless module. When the TypeC interface of the data transmission device is inserted into a user's terminal device, the data transmission device automatically obtains media data presented on the screen of the terminal device, and transmits the media data being converted and compressed, using the wireless module, to a data receiving device for presentation of the media data.

Abstract: A communication device includes USB Type-C (USB-C) port to receive a media data presented at a user computing device, a signal converter circuit to convert the media data into a formatted media data, a hardware processor, communicatively coupled to the signal converter and the USB-C port, to compress, according to an encoding scheme, the formatted media data into a compressed media data stream, and a wireless transmission interface to transmit, using a wireless network, the compressed media data stream to a large-format display device for presentation of the media data.

Abstract: The present disclosure discloses an electromagnetic touch structure, a direct-backlight display module and a display. The electromagnetic touch structure includes a frame structure and an electromagnetic screen structure disposed on the rim structure; the frame structure includes a groove-shaped metal rear shell and a rim structure disposed at a peripheral edge of the metal rear shell. The electromagnetic screen structure includes a diffusion panel and an electromagnetic film which are stacked between the metal rear shell and the rim structure, and a permanent magnet structure disposed at a peripheral edge of the electromagnetic film, and the permanent magnet structure is located between the metal rear shell and the rim structure, and the electromagnetic film is disposed above or below the diffusion panel.

Abstract: An interactive information terminal with variable form, comprising an information terminal, a rotating device, and a bracket, wherein the information terminal is fixed on the bracket by the rotating device, the rotating device includes a fixing member, a rotating member, and a rotating shaft, the fixing member is detachably connected with the information terminal, the rotating member is detachably connected with the bracket, and the rotating member is rotatably connected with the fixing member through the rotating shaft, so as to realize that the rotating member rotates around the axial line of the rotating shaft.

Abstract: The present disclosure relates to a method and a system for remote collaboration, the method includes: receiving mouse operation information of a user in the master computer which is captured and transmitted by the master computer; detecting a position of the mouse cursor on the master split screen in accordance with the mouse operation information, then when the cursor arrives at a boundary of the master split screen and continues to move in a direction away from the master split screen, detecting a current split screen connecting to the boundary, and displaying the cursor on the current split screen; and receiving interaction information transmitted by the master computer, and transferring the interaction information to a current slave computer corresponding to the current split screen, so as to cause the current slave computer to execute the interaction information, where the interaction information is the information which is obtained and intercepted by the master computer when the master computer detects

Abstract: The present disclosure includes a method and a system for wireless screen transmission, the method includes: receiving first feedback information transmitted from each computer among multiple computers when the each computer detects that itself is in a first display state, where the first display state refers to that the each computer detects a change in the desktop image within a first preset time period, where all of the multiple computers simultaneously perform wireless screen transmission with a receiving terminal, and the desktop image of the each computer is respectively displayed on a corresponding split screen of the receiving terminal; and displaying, when it is determined according to the first feedback information that only one computer of the multiple computers is in the first display state, a split screen corresponding to the one computer in the first display state in full-screen.

Abstract: A method and system for handling frame dropping during playback of a PPT file. The method comprises operating the DXGI screen capturing module to acquire a prepositioned frame in a graphics card cache (S100); acquiring screen data according to the prepositioned frame (S200); monitoring the screen data and timing a duration in which the screen data does not change (S300); and modifying the screen data when the duration exceeds a preset threshold (S400); performing screen capture by the DXGI screen capturing module when the screen data changes (S500). During the whole process, when the duration in which the screen data does not change exceeds the preset threshold, the screen data is actively modified, so that the frame dropping that occurs when there is no change in the screen data may be avoided, thereby enabling effective handling of the frame dropping during playback of the PPT file.

Abstract: Provided are a method, an apparatus, an electronic device, and a storage medium for displaying an expansion of a 3D shape, including: determining a 3D shape to be expanded, and acquiring a target expanded state of the 3D shape; searching a preset multi-level information relationship table for an articulation relationship set corresponding to the target expanded state; determining, according to the articulation relationship set and a preset expansion rule library, a target expansion rule for each target plane surface on the 3D shape; and controlling to expand each target plane surface at a predetermined a rate based on the each target expansion rule, and displaying the expansion process in real time. The method dynamically displays an expansion process of a 3D shape to a student, such that the student can understands more about the process of transformation from a 3D shape to a selected expanded state, thereby improving user experience of a teaching demonstration function on an electronic device.

Abstract: The present disclosure includes a method and device for recording and transmitting courseware, an interactive white board and a storage medium, where the recording method includes recording a page identifier of the courseware, user audio data and user behavior data in the recording process; responsive to receiving an instruction for triggering the closing of the courseware recording function, mapping time points of recording the recorded page identifier of the courseware, user audio data and user behavior data to a timeline of the recording process, and based on the timeline, storing the courseware, the user audio data and the user behavior data in relation each other to generate a recording file of the recording process.

Abstract: A device includes a loudspeaker body, a loudspeaker fastener structure, and a loudspeaker shock absorption structure, in which the loudspeaker absorption structure further comprises a first elastomer, a second elastomer, and a bridging beam, wherein the bridging beam is made of an elastic material, and the first elastomer is connected to the second elastomer by the bridging beam.

Abstract: The present disclosure discloses a method, device, and system for controlling screen projection. The method comprises a first terminal acquiring a device list, wherein the device list includes identification information of a second terminal, and the second terminal is a terminal that accesses a same server as the first terminal; the first terminal receiving a selection instruction, wherein the selection instruction is used to select target identification information from the device list; the first terminal sending a screen projection control instruction to the server, wherein the screen projection control instruction includes target identification information, and the screen projection control instruction is forwarded to a target second terminal corresponding to the target identification information via the server, so as to control the target second terminal to project the screen to a first screen projection receiving end.

Abstract: The present invention provides a method, a system, and an apparatus for processing a touch sensing signal, and an electronic device. The method is applied to an operating system and includes: receiving a touch sensing signal generated by a touch sensor of a touch device; converting the touch sensing signal to a touch signal, where the touch signal at least comprises a touch position signal; sending the touch signal to the touch device; receiving the touch signal coded by the touch device and transferring to a touch driver. In implementing the embodiments of the present invention, the touch sensing signal generated by the touch sensor is converted to the touch signal by the operating system followed and returned back to the touch device, and therefore the touch device do not need to perform conversion processing, which can reduce the performance requirement on its chip and lower the cost and volume of the touch device.

Abstract: The present invention, belonging to the technical field of data transmission, relates to an integrated intelligent interaction machine. The integrated intelligent interaction machine comprises a signal transmission device, a processing device, a upper computer and a network transmission device, wherein the signal transmission device is connected to the processing device, the processing device is connected to the upper computer, and the upper computer is connected to the processing device through the network transmission device. The signal transmission device is used to receive a screen transmission signal and transmit it to the processing device, and the processing device is used to process the screen transmission signal to obtain screen transmission data and transmit the screen transmission data to the upper computer.