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

TS flow de-multiplexing method

A demultiplexing and node technology, applied in the field of TS demultiplexing, can solve problems such as interface call restrictions, and achieve the effect of fast speed and high efficiency

Active Publication Date: 2016-04-06
SICHUAN CHANGHONG ELECTRIC CO LTD
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a TS stream demultiplexing method to solve the problem that the interface provided by the demultiplexing module has call restrictions in the traditional digital TV receiver and in the software implementation of the digital TV receiver

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
  • TS flow de-multiplexing method
  • TS flow de-multiplexing method
  • TS flow de-multiplexing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] A filtering method in the prior art such as figure 1 As shown, the requested filter in the diagram is stored in 64 array elements. This type of filter is established with PID as the filter channel. Each PID can only occupy one channel. When a PID has requested , another request with the same PID will fail. The filter with PID 0 on the way has already been occupied in request 1. When request 2 requests to filter the data with PID 0 again, it will fail. In this way, when a TS packet comes, it is necessary to traverse the array sequentially, find the filter corresponding to the TS packet, and stop after finding it. In the figure, the TS packet with PID 0 arrives, and the filter with subscript 0 in the comparison array is not needed. After the filter with subscript 1 is matched successfully, the comparison is not performed afterwards.

[0027] Another way to filter such as figure 2 As shown, the filter requested in the illustration is stored in 64 array elements. This me...

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 a de-multiplexing method, solves a problem that an interface provided by a de-multiplexing module in the prior art has call limits, and provides a TS flow de-multiplexing method. According to the TS flow de-multiplexing method, firstly, filtering request information is received by a system, and a filter is generated according to the filtering request information; secondly, index table inlets of the filter are established by a system, and each inlet of the index table inlets respectively corresponds to one node; thirdly, a mapping relationship between each node and a filter address is established by the system; fourthly, the filter is called by the system to accomplish information filtering according to the filtering request information and the mapping relationship. Data of different PID packets and same PID packets are freely filtered, especially for avoiding conflicts generated when different software modules are utilized for filtering data of the same PID packets simultaneously, high efficiency and rapid speed are realized, and the TS flow de-multiplexing method is practical.

Description

technical field [0001] The invention relates to a digital television receiver, in particular to a TS demultiplexing method in the digital television receiver. Background technique [0002] In a digital TV receiver, various data received from the receiver including channel audio and video, subtitles, program information, program preview and other data are multiplexed in the TS (Transport Stream Transport Stream) stream, and the data is divided into fixed-length data The package and the header are placed in the transport stream. Each block is called a TS packet. The size of the TS packet in the DVB (Digital Video Broadcasting) specification is 188 bytes. There is a PID (packet identifier) ​​in the fixed header. Used to distinguish different categories of data. Generally, different types of data have different PIDs, and the same type of data has the same PID. For example, the audio and video of a channel program use a PID for transmission. When using it, it is necessary to fi...

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): H04N21/434
CPCH04N21/434
Inventor 常吕伦张刚吴纯彬张雷鸣周志武
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