Patent · US Expired

Method and control program for operating a communication terminal for packet-oriented data transmission

US7590849B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Stefan Berndt · Ascheberg, DE
Bruno Bozionek · Borchen, DE
Bernd Hinz · Rheda-Wiedenbrück, DE
Thorsten Laux · Hamburg, DE
Ralf Neuhaus · Drensteinfurt, DE
Christian Scheering · Bielefeld, DE
Rainer Uecker · Bad Hersfeld, DE
Rainer Zimmermann · Paderborn, DE

Key dates

Filing date	Mar 24, 2004
Grant date	Sep 15, 2009
Priority date	—
Expiry date	Dec 12, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH04L63/126
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In order to operate a communication terminal for packet-oriented data transmission, at least one piece of status information is stored, for a communication terminal, in a memory unit associated with the communication terminal. Said status information is provided with a digital signature that is calculated from the status information by means of a private key for an asymmetrical encoding method associated with a first control unit associated with the communication terminal, for the resolution and/or conversion of network addresses. If the first control unit fails, a request is transmitted comprising the status information and the digital signature to associate the communication terminal with at least one second control unit, and the digital signature is checked. In the event of a positive check result, the communication terminal is associated with the second control unit.

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