Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

SMT (security message table) information transmission method for TS (transport stream) data packets of digital video broadcasting network

A technology for data broadcasting and information transmission, applied in the directions of image communication, selective content distribution, electrical components, etc., can solve the problems of low efficiency, no SMT transmission method, inconvenient reception of smart TV terminals, etc., to improve diversity and effectiveness. sexual effect

Active Publication Date: 2013-08-28
SICHUAN CHANGHONG ELECTRIC CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Based on the above content, it can be seen that SMT needs to be transmitted to smart TV terminals through digital TV broadcast channels, but there is currently no transmission method for SMT on digital TV broadcast channels.
If the SMT is loaded into the MPEG2-TS data area in the form of a data file without any processing for transmission, the smart TV terminal cannot directly obtain the SMT transmitted by the broadcast channel in the transmission data stream, and can only passively receive the broadcast channel All the SMTs transmitted, and then the local database deletes the relevant unnecessary SMTs, resulting in inconvenient and inefficient reception of smart TV terminals

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
  • SMT (security message table) information transmission method for TS (transport stream) data packets of digital video broadcasting network
  • SMT (security message table) information transmission method for TS (transport stream) data packets of digital video broadcasting network
  • SMT (security message table) information transmission method for TS (transport stream) data packets of digital video broadcasting network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment one: digital television broadcasting network TS data packet SMT information transmission method, wherein the schematic diagram of TS data packet is as figure 2 As shown, the 184-byte data area of ​​the TS data packet includes an identification code, directory bits, and SMT. If the directory bit is S1 (ID index number), the TS data packet includes at least one S1, and the number of SMTs corresponds to the number of directory bits S1 one-to-one. If the identification code is 4 bytes, S1 is 16 bytes, and SMT is 44 bytes, then the TS data packet includes a 4-byte identification code, 3 S1s and corresponding 3 SMTs. The function of the identification code is to distinguish different embedding methods of SMT in the TS data packet. Through such data embedding and encapsulation, it can be guaranteed that an integer number of SMT data packets are embedded in a broadcast TS data packet, and there is no correlation between the SMTs transmitted in adjacent broadcast TS...

Embodiment 2

[0046] Embodiment two: digital television broadcasting network TS data packet SMT information transmission method, wherein the schematic diagram of TS data packet is as image 3 As shown, the 184-byte data area of ​​the TS data packet includes an identification code, directory bits, and SMT. If the directory bit is S2" (first-level classification value of network information content) and S3 (secondary classification value of network information content), the flag bit is 4 bytes, S1 is 1 byte, S3 is 1 byte, and SMT is 44 byte, the TS packet includes 4-byte identification bits, 1 byte S2, 1 byte S3, and 4 SMTs. Through such data embedding and encapsulation, it can be guaranteed that an integer number of SMTs is embedded in a broadcast TS packet There is no correlation between the data packet and the SMT transmitted in the adjacent broadcast TS data packet, and by identifying the 4-byte identification bit in the data field header of the TS data packet, the smart TV can quickl...

Embodiment 3

[0047] Embodiment three: digital television broadcasting network TS data packet SMT information transmission method, wherein the schematic diagram of TS data packet is as Figure 4 As shown, the 184-byte data area of ​​the TS data packet includes an identification code, directory bits, SMT, and reserved bits. If the directory bit is S4 (network data content provider information), the flag bit is 4 bytes, S4 is 10 bytes, SMT is 44 bytes, and the number of S4 corresponds to the number of SMT, then the TS packet includes 4-byte identification code, 3 S4, 3 SMT, 18-byte reserved bits. The function of the identification code is to distinguish different embedding methods of the SMT in the TS data packet. Through such data embedding and encapsulation, it can be guaranteed that an integer number of SMT data packets are embedded in a broadcast TS data packet, and there is no correlation between the SMTs transmitted in adjacent broadcast TS data packets, and by identifying the data fie...

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 relates to the field of information implanting of the digital video broadcasting network, in particular to an SMT (security message table) information transmission method for TS (transport stream) data packets of the digital video broadcasting network. In order to solve problems in the prior art, a flag bit and a category bit corresponding to SMT data information are embedded into the TS data packets and are analyzed according to the TS data transmitted on intelligent television terminals through the digital television broadcasting network according to the MPEG2-TS (moving picture experts group2-TS) protocol, and corresponding SMT can be quickly searched through the analyzed flag bit and the category bit. An SMT implanting method for the TS data packets of the digital video broadcasting network is stated by a series of steps. The SMT information transmission method is mainly applied to the field of data transmission of the digitalized television broadcasting network.

Description

technical field [0001] The invention relates to the field of information embedding of a digital television broadcasting network, in particular to a method for transmitting SMT information of a TS data packet of a digital television broadcasting network. Background technique [0002] At present, smart TVs with related functions of online news browsing, online interactive video on demand and extended software network downloads have been introduced to the market and gradually popularized. Since the smart TV itself is equipped with related software systems, once connected to the network, there is a risk of virus attacks on the network. Through the secure digital TV broadcasting network channel transmission network information content SMT (Security Message Table Security Message Table) is sent to the smart TV terminal, the smart TV terminal judges whether the network information content transmitted by the Internet is safe based on the secure SMT, and realizes the security of netw...

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 Patents(China)
IPC IPC(8): H04N21/434
Inventor 文斌刘东孟庆康
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com