Processing Device
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsBernard Smeets, Patrik Ekdahl
Life of this patent
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Abstract
Disclosed herein is a processing device comprising a secured execution environment comprising means for bringing the processing device into a predetermined operational state; and a timer; a communication interface for data communication between the processing device and a remote device management system external to the processing device; wherein the secured execution environment is configured, responsive to an expiry of the timer, to bring the processing device into said predetermined operational state; and responsive to a receipt, from the remote device management system via said communications interface, of a predetermined signal, to restart the timer.
Claims18
1-17. (canceled)
A processing device comprising:
- a secured execution environment comprising a timer and electronic hardware configured to bring the processing device into a predetermined operational state;
- a communications interface for data communication between the processing device and a remote device management system external to the processing device;
- wherein the secured execution environment is configured to:
- bring the processing device into said predetermined operational state, responsive to an expiry of the timer;
- and
- restart the timer, responsive to a receipt of a trigger signal from the remote device management system, via said communications interface.
A device management system for controlling operation of a remote processing device external to the processing device, the remote processing device comprising a secured execution environment comprising a timer and electronic hardware configured to bring the processing device into a predetermined operational state;
- the device management system comprising:
- a communications interface for data communication between the device management system and the remote processing device;
- and
- processing means configured to
- determine an operational state of the remote processing system;
- and
- send a trigger signal to the processing device via the communications interface, responsive to the determined operational state, for causing the processing device to restart the timer.
A method of controlling operation of a processing device by a remote device management system external to the processing device, the processing device comprising a secured execution environment comprising a timer and means for bringing the processing device into a predetermined operational state;
- the method comprising:
- bringing the processing device into said predetermined operational state, responsive to an expiry of the timer;
- restarting the timer responsive to receiving a trigger signal from the remote device management system, via a communications interface of the processing device.
A secured execution environment for a processing device, the secured execution environment comprising a timer and electronic hardware configured to bringing the processing device into a predetermined operational state, wherein the secured execution environment is configured to:
- bring the processing device into said predetermined operational state, responsive to an expiry of the timer;
- restart the timer, responsive to receiving a trigger signal from the remote device management system, via a communications interface of the processing device.
Dependencies are inferred from the claim text.