Patent · US Active

Resource protection

US11288404B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Albrecht Mayer · Deisenhofen, DE
Glenn Ashley Farrall · Long Ashton, GB
Frank Hellwig · Wunstorf, DE

Key dates

Filing date	Jun 14, 2019
Grant date	Mar 29, 2022
Priority date	—
Expiry date	Feb 19, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/2149
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A System on Chip (SoC), including a plurality of processor cores including a secure master, which is configured to run security software, and a non-secure master, which is configured to run non-security software; a resource configured to be shared by the secure master and the non-secure master; and a state machine configured to protect the resource by allowing only the secure master to transition the resource to a particular state of the state machine, and allowing only the non-secure master to transition the resource to another particular state of the state machine.

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