Capacitive proximity switch circuit
US5880538A · kind A · utility
46Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 1997 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | May 20, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/962
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A capacitive proximity switch which may be used as an actuating device for a variety of control applications, such as windshield wipers and door locks. According to the invention, the actuating element a contact or proximity switch to be actuated in a nonmechanical manner, and a sensor provided on an object being made as part of a capacitive proximity switch, specifically as an operating electrode of the capacitive proximity switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.