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

A technology for emergency broadcasting and digital frequency modulation, applied in the field of satellite TV set-top boxes and systems, to achieve the effects of low power consumption, high power consumption, and reduced data processing capacity

Inactive Publication Date: 2021-04-27
合肥飞光妙源信息科技有限公司
View PDF0 Cites 0 Cited by
  • 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 satelli

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for responding to emergency broadcast through digital frequency modulation, satellite television set top box and system
  • Method for responding to emergency broadcast through digital frequency modulation, satellite television set top box and system
  • Method for responding to emergency broadcast through digital frequency modulation, satellite television set top box and system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0079] To make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0080] example Figure 1-3 As shown, a method, satellite TV set-top box and system for responding to emergency broadcast via digital frequency modulation, wherein,

[0081] An aspect of this embodiment provides a method for responding to emergency broadcast via digital frequency modulation, including the following steps:

[0082] (1) When the DVB-S set-top box 400 is turned off or on standby or playing a program, the FM-CDR receiving module 1 receives the FM-CDR broadcast signal, demodulates and decodes the FM-CDR data, and then decrypts it by the FM-CDR parsing module 2 Decrypt and parse FM-CDR data to obtain emergency messages;

[0083] Emergency messages, including emergency instructions and emergency info...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for responding to emergency broadcast through digital frequency modulation, a satellite 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-S program; a DVB-S receiving module obtains a DVB-S program from the DVB-S broadcast television signal; a main control module for receiving the DVB-S program video and audio data receives the emergency message, executes an emergency instruction, and awakens the DVB-S set top box in advance in a necessary time period; and the main control module sets receiving parameters of a second DVB-S 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-S set top box is awakened to carry out emergency broadcast.

Description

technical field [0001] The invention belongs to the technical field of emergency broadcasting, and in particular relates to a method for responding to emergency broadcasting through digital frequency modulation, a satellite TV set-top box and a system. Background technique [0002] The satellite digital TV DVB-S set-top box receives, demodulates, demultiplexes and decodes DVB-S radio and television signals to obtain radio and television program data, and outputs them to the TV for playback. When natural disasters or social public events occur, the emergency broadcast management platform sends emergency messages to DVB-S set-top boxes. When the DVB-S set-top box is turned off, standby or playing programs, there is a problem of how to respond to emergency messages and play emergency broadcasts. [0003] The existing emergency broadcast system inserts the emergency message into the DVB-S broadcast TV signal, and the DVB-S set-top box receives and separates the emergency messag...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04N21/426H04N21/435H04N21/439H04N21/4402H04N21/443H04N21/462H04N21/488H04N21/61H04N21/81H04H20/59H04H20/51
CPCH04H20/51H04H20/59H04N21/42607H04N21/435H04N21/4355H04N21/4398H04N21/440218H04N21/4432H04N21/4436H04N21/4622H04N21/4882H04N21/6112H04N21/6143H04N21/814
Inventor 李晓飞
Owner 合肥飞光妙源信息科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products