| 摘要 |
|A mobile device comprising one or more sensors and logic, the logic is configured to obtain one or more first data outputs from the one or more sensors when the mobile device is in a first state; obtain one or more second data outputs from the one or more sensors; and determine whether there has been a transition from the first state to a second state, based on a difference between the one or more first data outputs and the one or more second data outputs. Aspects of the invention comprise the logic configured to obtain one or more third data outputs from additional sensors if there has been a transition from the first state to the second state. Thus, if the mobile device determines that it has transitioned it may then characterise the second state by activating multiple sensors and taking a plurality of readings in the second state. This may allow the mobile device to characterise, or otherwise apply a signature or fingerprint to the second state. Once a second, unknown state has been characterised, the one or more additional sensors may be switched off or deactivated, in order to conserve the devices resources. |
