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US 2014/0007120 A1Published application
Method for operating a microprocessor unit, in particular in a mobile terminal
AssigneeTrustonic Limited
InventorStephan Spitz
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AssigneeTrustonic Limited
InventorStephan Spitz
Estimating the term…
The invention relates to a method for operating a microprocessor unit, in particular in a mobile terminal, wherein the microprocessor unit comprises a microprocessor (MP) on which a normal runtime environment (NZ) is implemented with a first operating system (B1) and a secure runtime environment is implemented with a second, secure operating system (B2). The microprocessor unit also comprises a RAM memory (R) outside the secure runtime environment (TZ), into which memory the first operating system (B1) is loaded when executing the normal runtime environment (NZ). The invention is distinguished by the fact that the second operating system (B2) is a secure version of the first operating system (B1), which version is loaded into a section of the RAM memory intended for the secure runtime environment during the execution of the secure runtime environment (TZ).
A method for operating a microprocessor unit, particularly in a mobile terminal, wherein the microprocessor unit comprises a microprocessor (MP), on which a normal runtime environment (NZ) having a first operating system (B1) and a protected runtime environment having a second operating system (B2) are implemented, and also a RAM store (R) outside the protected runtime environment (TZ), into which RAM store the first operating system (B1) is loaded when a normal runtime environment (NZ) is executed;
A microprocessor unit, particularly for a mobile terminal, comprising a microprocessor (MP), on which a normal runtime environment (NZ) having a first operating system (B1) and a protected runtime environment (TZ) having a second operating system (B2) are implemented, and a RAM store (R) outside the protected runtime environment (TZ), into which RAM store the first operating system (B1) is loaded when the normal runtime environment (NZ) is executed;
Dependencies are inferred from the claim text.