Patent ID: 7628554

Claim:
A device, comprising: a shutter blade to occlude an opening to a sensor; a base plate to: support an arm, support a wire having a proximal end and a distal end, where the distal end is coupled to the arm and the proximal end is coupled to a post, where a current is applied, via the post and to the wire, to modify a temperature of the wire, and where the wire displaces the arm when the current increases the temperature of the wire above a threshold temperature, and pivotally support the shutter blade via a pivot location, where the shutter blade moves pivotally around the pivot location to occlude the opening in response to the arm being displaced by the wire; a processor to: generate a pulse width modulated waveform comprising a preconditioning pulse, a closing pulse, and a maintenance pulse, where the preconditioning pulse maintains the wire substantially at a particular temperature below the threshold temperature, the closing pulse raises the temperature of the wire above the threshold temperature, and the maintenance pulse maintains the temperature of the wire above the threshold temperature; and an output interface to: provide, to the wire and based on an instruction to operate the shutter blade, the preconditioning pulse, the closing pulse, and the maintenance pulse, where the instruction is related to recording an image via the sensor when shutter blade does not occlude the opening.