Patent · US Active

Method for retransmission of use authorization information

US7877811B2 · kind B2 · utility

1Cited by

1References

2Claims

0Family size

Assignee

INSTITUT FÜR RUNDFUNKTECHNIK · DE

Inventor

Robert Sedlmeyer · Ismaning, DE

Key dates

Filing date	Mar 30, 2006
Grant date	Jan 25, 2011
Priority date	—
Expiry date	Mar 3, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/4627
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In order to reduce the multitude of data for transmitting and converting use authorizations, which are received either encoded or non-encoded together with sound and/or picture contents in signals from optional networks, it is proposed to reduce the hierarchically structured use authorization information in the form of a tree structure before transmitting it further, such that non-occupied tree branches are detected and marked as not relevant, wherein the tree branches marked as not relevant are not included during the further transmitting of the use authorization information.

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