Water immune keypad
US9965983B2 · kind B2 · utility
0Cited by
1References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 2015 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Dec 11, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2017/9602
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A keyless entry system for an automobile includes a capacitive touch screen having at least one drive line and at least one sense line, the drive and sense lines defining a plurality of touch detection nodes. The touch screen is associated with an exterior surface of the automobile. A control circuit coupled to the touch screen is configured to detect proximity of a stimulus to the touch detection nodes. The control circuit provides a control output to a lock or latch controller when the control circuit determines that the stimulus has been placed proximate the touch detection nodes according to predetermined criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.