Method for awakening emergency broadcast by digital frequency modulation, DTMB set top box and system

An emergency broadcasting and digital frequency modulation technology, which is applied in broadcasting-specific applications, electrical components, selective content distribution, etc., to achieve the effects of low power consumption, large amount of processed data, and high power consumption

Inactive Publication Date: 2021-06-01
南京双晨信息科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide the method for waking up emergency broadcast by digital frequency modulation, DTMB set-top box and system, aim to solve the problem of how DTMB set-top box responds to emergency news and plays emergency broadcast

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 awakening emergency broadcast by digital frequency modulation, DTMB set top box and system
  • Method for awakening emergency broadcast by digital frequency modulation, DTMB set top box and system
  • Method for awakening emergency broadcast by digital frequency modulation, DTMB set top box and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0082] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be further described in detail below in conjunction with the drawings and embodiments.

[0083] Example Figure 1-3 As shown, the method, DTMB set-top box and system for waking up emergency broadcast by digital frequency modulation, wherein,

[0084] In one aspect of this embodiment, the method for waking up an emergency broadcast by digital FM includes the following steps:

[0085] (1) When the DTMB set-top box 400 is turned off or in 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 the FM-CDR decryption and analysis module 2 decrypts, Analyze FM-CDR data to get emergency messages;

[0086] Emergency messages, including emergency instructions and emergency information;

[0087] Emergency inform...

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 awakening emergency broadcast through digital frequency modulation, a DTMB set top box and a system, and the method comprises the following steps: an FM-CDR receiving module and an FM-CDR decryption analysis module obtain an emergency message from an FM-CDR broadcast signal, wherein the emergency message comprises an emergency instruction and emergency information, and the emergency information is emergency broadcast content; the DTMB receiving module obtains a DTMB program from the DTMB broadcast television signal; the first control module receives the emergency message, executes an emergency instruction, and awakens the DTMB set top box in advance for a necessary time period; and the first control module converts the media type of the emergency broadcast content, and synthesizes and outputs the emergency broadcast content. According to the invention, the emergency message in the FM-CDR broadcast signal is detected and received in real time, and the DTMB 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 waking up emergency broadcasting by digital frequency modulation, a DTMB set-top box and a system. Background technique [0002] The terrestrial digital TV DTMB set-top box receives, demodulates, demultiplexes and decodes the DTMB broadcast TV signal to obtain broadcast TV program data, and outputs it to the TV for playback. When a natural disaster or social public event occurs, the emergency broadcast management platform sends an emergency message to the DTMB set-top box. When the DTMB 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 DTMB broadcast TV signal, and the DTMB set-top box receives and separates the emergency message. Demodulation and decoding r...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/488H04N21/426H04N21/438H04N21/4385H04N21/435H04N21/443H04N21/4402H04H20/59
CPCH04H20/59H04N21/426H04N21/4353H04N21/4382H04N21/43853H04N21/440236H04N21/4432H04N21/4436H04N21/4882
Inventor 谢涛
Owner 南京双晨信息科技有限公司
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap