TV signal transmission device compatible with cable TV transmission and interactive personality TV (IPTV) transmission

Abstract

The invention relates to a TV signal transmission device compatible with cable TV transmission and interactive personality TV (IPTV) transmission. The TV signal transmission device comprises a digital audio signal acquisition module, a digital video signal acquisition module, an additional data acquisition module, a packaging-multiplexing module, a 8B / 10B encoding module, a synchronization word insertion module, a parallel-serial conversion module, an asynchronous serial interface (ASI) processing module, an IP (Internet Protocol) packaging module, a UDP (User Datagram Protocol) packaging module and a switching control module, wherein the packaging-multiplexing module is connected with the digital audio signal acquisition module, the digital video signal acquisition module and the additional data acquisition module in order to receive compressed audio data, compressed video data and encoded additional data, package the received data and multiplex the packaged data, and is used for processing the packaged and multiplexed data under the control of the switching control module in order to obtain a cable TV signal or an IPTV signal. Through adoption of the TV signal transmission device, functions of the transmission device can be extended, and compatibility with transmission of the cable TV signal and the IPTV signal is realized.

Description

[0001] This invention is a divisional application of a patent with the application number 201310168288.9, the application date is May 9, 2013, and the invention name is "TV signal transmitting device compatible with cable TV transmission and network TV transmission". technical field [0002] The invention relates to the field of digital television, in particular to a television signal transmitting device compatible with cable television transmission and network television transmission. Background technique [0003] Digital TV gradually replaces the original analog TV because it carries many programs and the program quality is good. The current digital TV can be divided into cable TV, satellite TV, terrestrial TV and Internet TV according to the transmission signal. Generally, a fixed type of transmitter corresponds to a fixed type of receiver, for example, a terrestrial TV receiver such as a terrestrial TV A set-top box only receives signals from terrestrial TV transmitters,...

AI Technical Summary

Problems solved by technology

[0004] However, because the types of cable TV, satellite TV, terrestrial TV, and Internet TV are only in the channel transmission mode, but are the same in the multiplexing of code streams, the packaging format of transport streams, etc., if you have to face multiple types It is necessary to build multiple types of transmitters, which is a waste of resources, especially when there are many types of receivers but a small number of actual receivers, this waste phenomenon is more prominent

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