Patent · US Active

Detection of data corruption in a data processing device

US9703622B2 · kind B2 · utility

3Cited by

6References

14Claims

0Family size

Assignee

NXP USA, Inc. · US

Inventors

Florian Mayer · Freiberg am Neckar, DE
Frank Steinert · Rosenheim, DE

Key dates

Filing date	Jun 18, 2013
Grant date	Jul 11, 2017
Priority date	—
Expiry date	Jul 2, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F11/1004
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method of operating a data processing system comprises: processing data words and switching between contexts; assigning a context signature Sig to any pair formed of a data word and a context; reading, within a current context, a data record from a memory unit, the data record comprising a payload data word and a protection signature; providing, as a verification signature, the context signature Sig of the payload data word and the current context; checking the verification signature against the protection signature; and generating an error signal if the verification signature differs from the protection signature.

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