General signal generator for radio digital television TS flow

Abstract

This invention discloses a wire digital TV TS flow general signal generator, which generates TS flow signals with standard TV video test signals and different PID code numbers and circulation characters by designing a standard video test signal generation unit, a high resolution TV / standard TV selection unit a video coding unit, a packing unit, a PID code number sphere selection unit, PID circulation generation unit, a data coding unit and a program multiplex unit. The TS flow signal can replace digital programs played on any wire digital TV platform digital channels and plays on-line, thus it can replace the original signals and plays at the first time when the digital TV programs are intruded by illegal signals.

Description

technical field [0001] The invention relates to a cable digital TV TS stream universal signal generator capable of replacing all TS stream program signals on the cable digital TV broadcasting platform without changing the PID parameters on the transmission multiplexer. Background technique [0002] With the popularization and development of digital TV, more and more cities have established cable digital TV broadcasting platforms with dozens to hundreds of TV programs in order to meet the needs of the masses for culture and entertainment. The viewing user group is also growing; so how to ensure the safe broadcast of digital TV programs and prevent illegal signal intrusion has become a key concern of relevant management and digital TV operators. At present, the effective measures to deal with illegal signal intrusion in the digital TV broadcasting process are only: turn off the power supply of the corresponding channel modulator, or take manual replacement of the input program...

AI Technical Summary

Problems solved by technology

However, the only effective measures to deal with illegal signal intrusion in the current digital TV broadcasting process are: turn off the power supply of the corresponding channel modulator, or manually replace the input program signal source, and change the PID (packet identification code, Packet Identifier) ​​on the transmission multiplexer at the same time. ) code number parameter setting method; objectively delays the first time to block illegal signal intrusion, and increases the probability of damage to online operation equipment due to frequent power interruptions. Even so, it cannot meet the expectations of management and operators Requirements for broadcasting management of radio and television programs; in severe cases, it will also have a bad impact on society

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