Patent ID: 8190017

Claim:
A camera device comprising: an image sensor to capture an image of a scene; an electro-mechanical shutter mechanism that opens to allow light from the scene to impinge on the image sensor, and closes to prevent light from the scene from impinging on the image sensor, in response to a drive current through a motor, wherein the shutter mechanism is to open in response to the drive current reaching an open shutter level, and close in response to the drive current reaching a close shutter level that is opposite in polarity to the open shutter level; motor drive circuitry coupled to provide the drive current to the motor, wherein the motor drive circuitry and the image sensor are connected to share the same circuit ground node; and a controller to cause the drive current to a) rapidly change from a neutral level to the close shutter level then b) slowly change from the close shutter level to the neutral level.