Abstract: A communication device includes an interface connector for connecting to a computing circuit to receive a media data and an external power supply, a transmission circuit, wherein the circuit transmits the media data to a network, a battery power supply, a controller circuit powered by the battery power supply, a sensor, communicatively coupled to the controller circuit, for detecting a movement of the communication device, a switch circuit for switchably connecting the battery power supply to the transmission circuit responsive to a first switch control signal, and a test circuit, communicatively coupled to the controller circuit, for generating the first switch control signal based on an external power control signal indicating whether the interface connector is connected to the computing circuit and a motion detection signal indicating whether the sensor detects the movement of the communication device.

Abstract: A communication device includes an interface connector for connecting to a computing device to receive a media data and an external power supply, a transmission subsystem for transmitting the media content to a network, a battery power supply, a controller circuit powered by the battery power supply, a sensor, communicatively coupled to the controller circuit, for detecting a movement of the communication device, and a switch circuit for switchably connecting the battery power supply to the transmission subsystem responsive to a first switch control signal that is generated based on a motion detection signal generated by the controller circuit responsive to a detection of the movement by the sensor.

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 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: A communication device includes an interface connector for connecting to a computing device to receive a media data and an external power supply, a transmission subsystem for transmitting the media content to a network, a battery power supply, a controller circuit powered by the battery power supply, a sensor, communicatively coupled to the controller circuit, for detecting a movement of the communication device, and a switch circuit for switchably connecting the battery power supply to the transmission subsystem responsive to a first switch control signal that is generated based on a motion detection signal generated by the controller circuit responsive to a detection of the movement by the sensor.

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: A television-and-computer all-in-one machine for performing remote control on an external computer, method thereof and a computer storage medium storing the method are disclosed. The television-and-computer all-in-one machine includes a television module, a control module and a switching module, the television module being connected to the switching module via the control module, wherein the television module is configured to receive a remote control signal; when the remote control signal contains a computer control signal and a switching signal, the television module is configured to transmit the computer control signal to the control module, the control module is configured to simulate a signal of a keyboard or mouse with the computer control signal and the switching module is configured to receive the switching signal and switch between a connection between the control module and an internal computer and a connection between the control module and an external computer.