Patent · US Active

Microprocessor system and method for detecting the exchange of modules of the system

US7832016B2 · kind B2 · utility

0Cited by

10References

19Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Jochen Weber · Laufenbürg, DE
Klaus Schneider · Tiefenbronn, DE
Axel Aue · Strohberg, DE

Key dates

Filing date	Mar 15, 2004
Grant date	Nov 9, 2010
Priority date	—
Expiry date	Nov 6, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/84
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In order to detect the exchange of a module, identified by a serial number, in a microprocessor system,a code number, which is obtained from the serial number by using an encryption method, as well as information required for calculating the serial number from the code number, are stored in the microprocessor system;the code number is read and an unencrypted serial number is calculated from the code number with the aid of the information; andthe decrypted serial number thus obtained is compared to the serial number of the module and the module is detected as exchanged if its serial number does not match the decrypted serial number.

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