Methods and apparatus for data input
US5861875A · kind A · utility
286Cited by
14References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1996 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Dec 11, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for data input. Devices are provided in accordance with this invention which utilize capacitive coupling of an object to the device to sense the object's position. The devices are comprised of a plurality of electrode strips which form virtual electrodes. The virtual electrodes are selectively connected to form virtual dipole electrodes which are responsive to the object's position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.