Mobile device with on-screen optical navigation
AssigneeResearch In Motion Limited
InventorAlexei SKARINE
Life of this patent
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Abstract
A mobile computing device, including a main body, a processor and associated memory housed within the main body, a display screen housed within the main body and responsive to signals from the processor, an optical sensor fixed to the main body for capturing successive images and providing image signals representative of the captured images to the processor, and a navigation module associated with the processor for determining, based on the image signals, a relative movement between the main body and a reference surface and moving a pointer on the display screen based on the determined relative movement.
Claims12
A mobile device, comprising:
- a casing having a front face and a back face;
- a display configurable to display a pointer, the display mounted in the front face;
- a camera configurable to capture successive images and provide image signals representative of the captured images, the camera mounted in the front face;
- and
- a microprocessor configurable to:
- receive the image signals,
- determine, based on the image signals, a relative movement between the casing and a reference surface, and
- move a pointer on the display based on the determined relative movement.
Dependencies are inferred from the claim text.