Transparent digitiser
US8217918B2 · kind B2 · utility
32Cited by
31References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2007 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Sep 10, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A digitizer for user interaction via an object with an electronically refreshable display screen, the digitizer comprising: a transparent sensing arrangement of detectors located at said electronically refreshable display screen for detecting an electric field of said object, said detectors having outputs, and an arrangement of differential amplifiers associated with said outputs, thereby to apply differential detection between said outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.