Title: Digital broadcast system with priority management service for public contingent even and its method
Application Number: 200610107839 Application Date: 2006.07.26
Publication Number: 1913405 Publication Date: 2007.02.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04H1/00;H04Q1/444
Applicant(s) Name: Huaruilongteng (Beijing) Information Technology Co Address:
Inventor(s) Name: Wang Yibing;Wang Xiaohang
Attorney & Agent: guo hongxi li yunxia
Abstract:
    This invention provides a prefererential digital broadcast system used in the management and service for public burst events and a method including: a head and tail transmitting device receiving digital information with dual audio coding including a dual audio coding trigger control circuit outputting control current when receiving the head of said station signals,stopping outputting control current acted by the tail, generating control current when bursting head of a sudden public event signal and cutting normal broadcast signal to turn on normal broadcast signal automatically when turning on the tail of the ending of the sudden event signal, a digital HF modulator acted by the control current of dual audio code trigger control circuit, said signal is modulated to a digital high frequency compound signal and a receiving device with a digital HF signal demodulation circuit receiving digital HF compound signal from a sending device and demodulating said signal to generate a digital baseband signal capable of receiving public burst signals automatically when switching off.
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