Patent ID: 8487915

Claim:
A mobile device providing a mobile processing function, the mobile device comprising: a mobile device body; a processing system within the body including at least one processor programmed to be part of providing the mobile processing function; a projector mechanically coupled to the body and coupled to the processing system to project an image onto a substantially planar surface when the mobile device body is on the surface at a predetermined angle relative to the surface; and a pen-location transcription system including a sensor array having at least two sensors mechanically coupled to the mobile device body, the sensor array arranged such that there is a spatial relationship between the respective positions of said at least two sensors, the sensors forming an active area on the planar surface that includes the projected image when the mobile device is on the surface at a predetermined angle such that the sensor array provides a tracking function for the transcription system to determine the position of a pointing implement in the active area, said pointing implement including a transmitter transmitting energy detectable by the sensor array when the pointing implement is in the active area, wherein the projector is in an arm hingeably connected to the mobile device body, the hinge connection such that the arm that includes the projector is lockable locked in a position for projecting.