Patent · US Expired

Method, encoder and decoder for the transmission of digital signals which are hierarchically structured into a plurality of parts

US5825430A · kind A · utility

40Cited by

7References

10Claims

0Family size

Assignee

Deutsche Thomson-Brandt GmbH · DE

Inventors

Dirk Adolph · Ronnenberg, DE
Carsten Herpel · Bad Driburg, DE

Key dates

Filing date	Dec 10, 1996
Grant date	Oct 20, 1998
Priority date	—
Expiry date	Dec 10, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2001/0098
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method and apparatus for the transmission of digital signals comprises the steps of forming at least two data channels carrying data packets, and eventually header data. The channels have different levels of error protection and include picture data, wherein the data packets within one of the channels have the same level of error protection, and wherein a super-ordinate channel has a higher error protection than a subordinate channel. Important information of a subordinate channel is then transmitted in a super-ordinate channel. The important information allows following erroneous reception of the digital signals an improved recovery of picture data decoding.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.