Patent ID: 7733326

Claim:
An apparatus comprising: a) at least one sensor unit having a motion detection means to detect its relative motion with respect to a surface, b) a processor unit including microcontroller, storage, power and communications elements, c) a mouse converter unit with a housing in the shape of a computer mouse, d) a pen attachment unit with a first attachable end and a second attachable end, e) said processor unit electrically connected to each of said sensor units, f) said mouse converter unit containing hollow space to receive one said sensor unit and said processor unit, g) a first mounting means to attach said first attachable to one said sensor unit, and h) a second mounting means to attach said second attachable end to a pen object, whereby said apparatus can be configured to operate as a mouse device by using one said sensor unit, said processor unit and said mouse converter unit, and as a pen device by using one said sensor unit, said processor unit and said pen attachment unit.