Virtual pointing device for touchscreens
US5764222A · kind A · utility
134Cited by
13References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 1996 |
| Grant date | Jun 9, 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 measuring at least a first portion of a hand placed on the touchscreen, determining if at least one measurement of the first portion substantially matches any existing measurements stored in the memory, if a substantial match exists, reading the memory for pre-defined characteristics, and building a virtual pointing device on the touchscreen in accordance with the pre-defined characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.