Device Security
AssigneeCambridge Silicon Radio Limited
InventorBarnaby Golder
Life of this patent
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Abstract
A functional device includes a local wireless transceiver for communicating with a remote wireless transceiver through a protocol according to which the local transceiver maintains a record of its connection state with selected devices that are within range of it. The device includes a memory for storing the identity of a selected device; and a controller configured to inhibit one or more functions of the functional device if the connection state maintained by the transceiver is indicative of the selected device being out of range. The performance of the functions of the device is independent of the local wireless transceiver.
Claims7
A functional device comprising:
- a local wireless transceiver for communicating with a remote wireless transceiver by means of a protocol according to which the local transceiver maintains a record of its connection state with selected devices that are within range of it, the device comprising:
- a memory for storing the identity of a selected device;
- and
- a controller configured to inhibit one or more functions of the functional device if the connection state maintained by the transceiver is indicative of the selected device being out of range, the said function(s) being function(s) the performance of which is/are independent of the local wireless transceiver.
A method for controlling a functional device comprising a local wireless transceiver for communicating with a remote wireless transceiver by means of a protocol according to which the local transceiver maintains a record of its connection state with selected devices that are within range of it, the method comprising:
- storing the identity of a selected device;
- and
- inhibit one or more functions of the functional device in response to a determination that the connection state maintained by the transceiver is indicative of the selected device being out of range, the function(s) being function(s) the performance of which is/are independent of the local wireless transceiver.
Dependencies are inferred from the claim text.