Data entry module
US8669886B2 · kind B2 · utility
0Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2010 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Nov 25, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/032
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A data entry module includes a flexible substrate, a fence circuit formed on the flexible substrate and including at least one trace routed in a meandering manner, an insulating layer formed on the fence circuit, a substrate spaced from the insulating layer, and a switch circuit including a plurality of switch elements each including two contact pads separately disposed on the substrate and the insulating layer. The fence circuit is configured to cover the switch circuit for preventing the interrogation of the switch circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.