WIRELINE AND WIRELESS TRANSMISSION SYSTEM FOR HIGH DEFINITION GRADE VIDEO STREAM USING 5.8GHZ BAND AND ITS MASTER/SLAVE APPARATUS

摘要

PURPOSE: A high definition (HD) video stream wire-wireless transmission system which uses a 5.8GHz and a master/slave device thereof are provided to enable a TV or smart devices as well as a PC to share a full image service by mutually transmitting an HD image signal through a wire/wireless interface. CONSTITUTION: A master device for wire/wireless transmission (3) includes a wide area network (WAN) interface, a LAN port for a connection of a first terminal, and a high definition multimedia interface (HDMI) for a connection of second terminals (7-10) which supply an HD video stream source. The master device for wire/wireless transmission selects an HD video stream of the second terminal and wirelessly transmits a compressed video stream in a 5.8GHz WiFi signal after the moving picture experts group (MPEG) compression of the video stream. Slave devices for wire/wireless transmission (14-16) receive the 5.8GHz WiFi signal and perform the MPEG decoding of the received signal. The slave devices for wire/wireless transmission deliver an HD image stream to receivers (18-20) through the HDMI. [Reference numerals] (1) Backbone network; (10) Notebook PC; (12,DD) 2.4GHz WiFi signal; (13,AA,BB,CC) 5.8GHz WiFi signal; (14,15,16,25) Slave devices for wire/wireless transmission; (17) Keyboard/mouse; (20) Beam projector; (21) Notebook; (23) PLC or LAN; (3) Master devices for wire/wireless transmission; (4) Network camera for monitoring; (5) NAS device; (6) HDMI hub switch; (7,22) Smart device; (8) Tablet PC; (9) Game console; (EE) Receiving device of a remote place