Patent · US Expired

System and method for data processing by executing a security program routine initially stored in a protected part of irreversibly blocked memory upon start-up

US6857068B1 · kind B1 · utility

6Cited by

31References

28Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Bernd Möller · Oststraße, SE
Harro Osthoff · Nuremberg, DE
Ben Smeets · Dalby, SE
Kar-Fat Poon · Vellinge, SE

Key dates

Filing date	Jun 21, 2000
Grant date	Feb 15, 2005
Priority date	—
Expiry date	Aug 30, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG06F12/1433
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Device for processing data includes a processor for executing program routines, and a memory for storing program routines to be executed by the processor. Part of the memory includes a protected part from which data can be read but which is protected against being written into. The processor is arranged to necessarily execute a program routine stored in the protected part of the memory upon start-up.

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