Electronic door latch system with water rejection filtering
US7026861B2 · kind B2 · utility
50Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 20, 2004 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Apr 20, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/94
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A control circuit receives inputs from first and second field effect sensors. The control circuit produces a control output only if the second field effect sensor senses proximity or touch more than a predetermined time after the first field effect sensor senses proximity or touch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.