Capacitive sensor
US9423418B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2013 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Mar 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/960765
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One example disclosed wearable device includes a first housing portion having a conductive section and a non-conductive section. The conductive section is connected to ground. A second housing portion includes a printed circuit board (PCB) with a conductor on the PCB surface positioned beneath the non-conductive section. The conductor on the PCB surface and the conductive section form a capacitor of a capacitive sensor. The wearable device may also include a first adhesive layer between a surface of the non-conductive section of the first housing portion and the PCB surface. A second adhesive layer, coplanar with the first adhesive layer, may be applied between a surface of the conductive section of the first housing portion and the PCB surface. The first adhesive layer and the second adhesive layer form a water tight seal that prevents liquids from penetrating into at least the second housing portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.