Supercharge Your Innovation With Domain-Expert AI Agents!

Apparatus for processing coded video data and system for distributing program by the same apparatus

A technology of video data and processing equipment, applied in the field of video and/or audio data systems, capable of solving problems such as focusing on relative complexity, impossible multiplexing optimization of data sources, etc.

Inactive Publication Date: 2004-04-07
THOMSON BROADCAST SYST CERGY PONTOISE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it impossible to optimize the multiplexing of the data sources, respecting the larger or smaller relative complexities of the allocated images

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
  • Apparatus for processing coded video data and system for distributing program by the same apparatus
  • Apparatus for processing coded video data and system for distributing program by the same apparatus
  • Apparatus for processing coded video data and system for distributing program by the same apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] figure 1 The device D shown in includes a video decoder 1, a circuit 2 for extracting encoding parameter values ​​from encoded video data, a circuit 3 for modifying at least one encoding parameter value according to a bit rate command CS, and Data encoding circuit4.

[0032] Partially or collectively, the various circuits included in the encoding circuit 4 may include a horizontal and vertical filtering circuit, a circuit for recombining video data, a motion estimator, and an encoding decision box for performing the DCT, which is collectively referred to as DCT. That is, the circuit for the operation of the discrete cosine transform, the circuit for quantizing the coefficients from the DCT, a variable length encoder, and a buffer memory.

[0033] The encoded video data input to the device D constitutes a constant bitstream of data VD1 emanating from an archival source or more generally a source in compressed form, at figure 1 is not indicated. Video data VD1 is suppl...

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 present invention relates to a device (D) for processing video data (VD1) coded according to a first set (Q) of values of coding parameters, characterized in that it comprises first means (1) for decoding the coded video data, second means (2) for retrieving the values (Q) of the coding parameters from the coded video data, third means (3) for modifying at least one value of the coding parameters of the said first set (Q) on the basis of a bit rate instruction value (CS) and for generating a second set (C) of values of coding parameters, and fourth means (4) for coding the decoded video data emanating from the first means (1) under the action of the second set (C) of values of coding parameters. The present invention applies to systems for distributing programmes such as, for example, systems for distributing programmes by satellite.

Description

technical field [0001] The invention relates to a device for processing coded video data. [0002] The present invention also relates to systems for distributing video and / or audio data, and more particularly to those systems for distributing video and / or audio data from archival sources. Background technique [0003] As a non-limiting example, a system for distributing video data from an archival data source may be a video-on-demand system. [0004] Contains compressed data in archival data sources, often referred to as server sources. The data is compressed by encoding, for example in accordance with the MPEG 2 video standard. This coding algorithm then exploits the spatial redundancy and temporal redundancy of the image to describe the block image. [0005] According to the prior art, various archive sources are distributed on the same channel through a multiplexer. The bit rate of each source is a fixed bit rate. This makes it impossible to optimize the multiplexing...

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): H04H20/00H04H20/74H04N7/08H04N7/081H04N19/00H04N21/2365H04N21/434
CPCH04N19/00472H04N21/4347H04N21/2365H04N19/40H04N21/23655H04N21/6143
Inventor 克劳德·佩龙
Owner THOMSON BROADCAST SYST CERGY PONTOISE
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com