Detection of data corruption in a data processing device

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United States of America Patent

PATENT NO 9703622
SERIAL NO

14898278

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Abstract

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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.

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Patent Owner(s)

  • NXP USA, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mayer, Florian Munich, DE 29 51
Steinert, Frank Rosenheim, DE 9 34

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