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: An interactive device stylus includes a stylus body, a stylus cap disposed at a front end of the stylus body, and a stylus head disposed on the stylus cap. The stylus head is fixed to a front end of the stylus cap via a connecting piece, a through-hole is provided in the connecting piece, and the inner diameter of the through-hole gradually decreases from the inside of the connecting piece to a free end of the connecting piece, so that a limiting portion is formed at the free end of the connecting piece. The stylus head is engaged in the connecting piece via the limiting portion. A fixing rod is provided in the stylus cap, and an end of the fixing rod is pressed against the stylus head.

Abstract: Provided are a screen display method and system for key function icons. The method acquires a size of a screen display area of a device, and acquires preset key function icons corresponding to physical keys of the device and a display mode of the preset key function icons, determines, according to the size and the display mode, display positions of the key function icons on the screen of the device, monitors triggering states of the physical keys of the device, if a physical key of the device is triggered, displays the key function icons at the display positions, thereby improving the accuracy in operating the physical keys of the device.

Abstract: A PC module assembly, comprising a PC module support, the PC module support comprising a bottom wall and a first side wall, the first side wall being provided with a first air outlet, an air inlet of a heat dissipation structure communicatively connected to the first air outlet. When mounting of a PC module, the PC module is mounted on the bottom wall, enabling the position of an air outlet of the PC module to correspond to the position of the first air outlet. When the PC module is in an operating state, hot air flow formed by the heat generated inside the PC module enters the first air outlet, and is diverted through the heat dissipation structure, so that the heat is dissipated from the inside of the PC module, thereby allowing the PC module to operate in a stable manner.

Abstract: A pluggable module identification system, including: a detection device and a plurality of pluggable modules with surfaces thereof being conductors, where the detection device includes a receptor slot, a grounding assembly is provided on an inner side surface of the receptor slot at a location close to an insertion opening of the receptor slot, a detection assembly is provided on the inner side surface of the receptor slot at location close to a bottom of the receptor slot, the grounding assembly is grounded, and the detection assembly is connected to a main board.

Abstract: Provided are a screen display method and system for key function icons. The method acquires a size of a screen display area of a device, and acquires preset key function icons corresponding to physical keys of the device and a display mode of the preset key function icons, determines, according to the size and the display mode, display positions of the key function icons on the screen of the device, monitors triggering states of the physical keys of the device, if a physical key of the device is triggered, displays the key function icons at the display positions, thereby improving the accuracy in operating the physical keys of the device.

Abstract: An interactive device stylus includes a stylus body, a stylus cap disposed at a front end of the stylus body, and a stylus head disposed on the stylus cap. The stylus head is fixed to a front end of the stylus cap via a connecting piece, a through-hole is provided in the connecting piece, and the inner diameter of the through-hole gradually decreases from the inside of the connecting piece to a free end of the connecting piece, so that a limiting portion is formed at the free end of the connecting piece. The stylus head is engaged in the connecting piece via the limiting portion. A fixing rod is provided in the stylus cap, and an end of the fixing rod is pressed against the stylus head.

Abstract: The present invention discloses a method and an apparatus for channel switching in an interactive smartboard. The method includes: receiving a channel switching request to switch from a first channel to a second channel; detecting a state of a system associated with the second channel; and when the state of the system associated with the second channel is a sleep state or a dormant state, according to the channel switching request, switching a touch receiving service to the system associated with the second channel and switching a current display from the first channel to the second channel, and waking up the system associated with the second channel.