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Method , DTMB set top box and system for responding to emergency broadcast by DRM

A technology of emergency broadcasting and set-top boxes, which is applied in the direction of specific broadcasting applications, electrical components, selective content distribution, etc., to achieve the effects of avoiding misoperation, low power consumption, and reducing the amount of data processing

Inactive Publication Date: 2021-06-01
六安正健信息技术有限公司
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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 the method, DTMB set-top box and system that rely on DRM to respond to the emergency broadcast, aiming to solve the problem of how the DTMB set-top box responds to the emergency message and plays the emergency broadcast

Method used

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  • Method , DTMB set top box and system for responding to emergency broadcast by DRM
  • Method , DTMB set top box and system for responding to emergency broadcast by DRM
  • Method , DTMB set top box and system for responding to emergency broadcast by DRM

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Embodiment Construction

[0072] 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.

[0073] Example Figure 1-3 Shown, rely on DRM to respond to the method for emergency broadcast, DTMB set-top box and system, wherein,

[0074] One aspect of this embodiment provides a method for responding to emergency broadcasts by means of DRM, including the following steps:

[0075] (1) When the DTMB set-top box 400 is turned off or in standby or playing programs, the DRM receiving module 1 receives the DRM broadcast signal, demodulates and decodes to obtain DRM data, and then the DRM decryption and analysis module 2 decrypts and analyzes the DRM data to obtain emergency messages;

[0076] Emergency messages, including emergency instructions and emergency information;

[0077] Emergency information is t...

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Abstract

The invention discloses a method, DTMB set top box and systemfor responding to an emergency broadcast by DRM, and the method comprises the following steps that a DRM receiving module and a DRM decryption analysis module obtain an emergency message from a DRM broadcast signal, wherein the emergency message comprises an emergency instruction and emergency information, and the emergency information is a receiving parameter of an emergency broadcast DTMB program; the DTMB receiving module obtains a DTMB program from the DTMB broadcast television signal; a main control module for receiving the DTMB program video and audio data receives the emergency message, executes an emergency instruction, and awakens the DTMB set top box in advance of a necessary time period ; and the main control module sets a receiving parameter of the DTMB receiving module according to the emergency information, converts the media type of the emergency broadcast content and outputs the emergency broadcast content. According to the invention, the emergency message in the DRM 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 responding to emergency broadcasting by means of DRM, 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 require high-...

Claims

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Application Information

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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 李怀成
Owner 六安正健信息技术有限公司
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