| 8576172 |
Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region |
Douglas B. Hill, David Holmgren |
2013-11-05 |
| 8537134 |
Size/scale and orientation determination of a pointer in a camera-based touch system |
Gerald Dale Morrison, Trevor Akitt |
2013-09-17 |
| 8228304 |
Size/scale orientation determination of a pointer in a camera-based touch system |
Gerald Dale Morrison, Trevor Akitt |
2012-07-24 |
| 8089462 |
Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region |
Douglas B. Hill, David Holmgren |
2012-01-03 |
| 7619617 |
Size/scale and orientation determination of a pointer in a camera-based touch system |
Gerald Dale Morrison, Trevor Akitt |
2009-11-17 |
| 7355593 |
Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region |
Douglas B. Hill, David Holmgren |
2008-04-08 |
| 6954197 |
Size/scale and orientation determination of a pointer in a camera-based touch system |
Gerald Dale Morrison, Trevor Akitt |
2005-10-11 |