The digital television system consists of a front end, a transmission and distribution network, and a terminal.
This article refers to the address: http://
Digital TV front-end can be divided into three parts: source processing, signal processing and transmission processing, complete TV program and data signal acquisition, analog TV signal digitization, digital TV signal processing and program editing, program resource and quality management, program scrambling , authorization, authentication and copyright management, TV program storage and broadcast functions.
Digital TV signal transmission and distribution networks mainly include satellites, fiber/microwave networks at all levels, cable broadband networks, terrestrial transmissions, etc., which can be transmitted or transmitted in one direction, or can form a two-way transmission and distribution network.
The digital television terminal can adopt a digital television receiver (set top box) plus a display mode, or a digital television integrated machine, or can use a computer to receive a card, etc., and can have only the function of watching digital television programs or an interactive terminal.
40152 17Ah 3.2V Lithium Ion Battery
Lithium Solar Batteries,Panasonic Lithium Ion Battery,Hw40152L 17Ah Lifepo4 Battery,Hw40152S 17Ah Lifepo4 Battery
Zhejiang Xinghai Energy Technology Co.,Ltd , https://www.headwayli-battery.com