Virtual pointing device for touchscreens
US5748184A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | May 28, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0488
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and article of manufacture direct a computer system, having at least a processor, memory, and touchscreen, to create a virtual pointing device on the touchscreen. The method includes the steps of detecting a handprint of a hand placed on the touchscreen, determining if pre-defined characteristics exist for the handprint based on the shape and size of the handprint, if pre-defined characteristics exist for the handprint, creating a virtual pointing device under at least a portion of the hand in accordance with the pre-defined characteristics, and if pre-defined characteristics do not exist, creating a generic virtual pointing device under the at least a portion of the hand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.