Control device and process for the contactless control of a unit, especially a plumbing unit
US5668366A · kind A · utility
45Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1995 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Mar 1, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic control device for the contactless control of a unit, e.g., a plumbing unit, especially a urinal, with at least one transmitter for sending directed light signals, and with a receiving device. The receiving device receives signals reflected from a scanned object and sends them to a circuit acting on the unit. The transmitter and the receiving device form an optical triangulation arrangement, wherein reflections are received from the background and from a predetermined detection zone to mask the said background.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.