User interface unit, smart card and manufacturing method
US9406013B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 2015 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Apr 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2017/9602
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is disclosed a user interface unit for a smart card, said user interface unit comprising a two-dimensional capacitive sensor array, wherein the capacitive sensor array comprises an array of corner sensor elements each comprising a capacitor over its area, wherein the respective capacitors of neighboring corner sensor elements in each dimension extend towards each other thereby defining at least one intermediate region therebetween, the area of the or each intermediate region covered by the respective capacitors being in a respective fixed ratio. Furthermore, there is disclosed a corresponding smart card and a method of manufacturing a user interface unit for a smart card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.