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Method for responding to emergency broadcast through digital frequency modulation, cable television set top box and system

A technology for emergency broadcasting and digital FM, which is applied in broadcasting circuit devices, broadcasting specific applications, electrical components, etc., to avoid misoperation, reduce data processing, and power consumption

Inactive Publication Date: 2021-04-30
合肥飞光妙源信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for responding to emergency broadcasts via digital frequency modulation, a cable TV set-top box and a system, aiming at solving the problem of how a DVB-C set-top box responds to emergency messages and plays emergency broadcasts

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  • Method for responding to emergency broadcast through digital frequency modulation, cable television set top box and system
  • Method for responding to emergency broadcast through digital frequency modulation, cable television set top box and system
  • Method for responding to emergency broadcast through digital frequency modulation, cable television set top box and system

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Embodiment Construction

[0079]In order to make the objects, technical solutions, and advantages of the present invention, the technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0080]ImplementationFigure 1-3As shown, the method, cable TV set-top box and system, which are transmitted to emergency broadcast response.

[0081]In one aspect of this embodiment, a method of emergency broadcasting, including the following steps:

[0082](1) When the DVB-C set-top box 400 is turned off or standby or play the program, the FM-CDR receiving module 1 receives the FM-CDR broadcast signal, declared, decoded the FM-CDR data, and then decrypt the resolution module 2 by the FM-CDR Decrypt, analyze FM-CDR data, to have emergency news;

[0083]Emergency news, including emergency instructions and emergency information;

[0084]Emergency information is the reception parameter of the emergency broadcast DVB-C.

[0085](2) When the DVB-C set-top box 40...

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Abstract

The invention discloses a method for responding to emergency broadcast through digital frequency modulation, a cable television set top box and a system, and the method comprises the steps that an FM-CDR receiving module and an FM-CDR decryption analysis module obtain an emergency message from a digital frequency modulation broadcast signal, the emergency message comprises an emergency instruction and emergency information, and the emergency information is a receiving parameter of an emergency broadcast DVB-C program; the DVB-C receiving module obtains a DVB-C program from the DVB-C broadcast television signal; the main control module for receiving the DVB-C program video and audio data receives the emergency message, executes an emergency instruction, and awakens the DVB-C set top box in advance in a necessary time period; and the main control module sets receiving parameters of the second DVB-C receiving module according to the emergency information, converts the emergency broadcast content into media types, synthesizes the media types and outputs the media types. According to the invention, the emergency message in the digital frequency modulation broadcast signal is detected and received in real time, and the DVB-C set top box is awakened to carry out emergency broadcast.

Description

Technical field[0001]The present invention belongs to the field of emergency broadcast technology, which involves a method, cable TV set top box and system for digital frequency-restricted response.Background technique[0002]Wired Digital TV DVB-C set top box receives, demodulates, demodulates, decodes, demodulates, decomposes, decodes, to obtain radio television program data, and outputs broadcasts. When a natural disaster or social public event occurs, the emergency broadcast management platform sends emergency news to the DVB-C set-top box. The DVB-C set-top box exists when shutdown, standby, or playing shows how to respond to emergency news and play emergency broadcasts.[0003]The existing emergency broadcast system, inserts the emergency news into the DVB-C radio television signal, received by the DVB-C set-top box and separated emergency news, the disadvantage is the DVB-C receiving module and master module 7 * 24 for DVB-C set-top boxes 7 * 24 Real-time operation, due to the DV...

Claims

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Application Information

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IPC IPC(8): H04N21/426H04N21/435H04N21/439H04N21/4402H04N21/443H04N21/462H04N21/488H04N21/61H04N21/81H04H20/59H04H20/46
CPCH04H20/46H04H20/59H04N21/42607H04N21/435H04N21/4355H04N21/4398H04N21/440218H04N21/4432H04N21/4436H04N21/4622H04N21/4882H04N21/6112H04N21/6143H04N21/814
Inventor 李晓飞
Owner 合肥飞光妙源信息科技有限公司
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