Capacitive sensing electronic faucet including differential measurements
US8973612B2 · kind B2 · utility
14Cited by
23References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 13, 2012 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Dec 25, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/9464
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fluid delivery device including an electronic faucet having a plurality of faucet components, and a primary capacitive sensor coupled to at least one of the faucet components and providing a primary output signal. At least one secondary capacitive sensor is located on or near an item which causes unintended effects on the output signal from the primary capacitive sensor and provides a secondary output signal. A controller determines a difference signal between the primary and secondary output signals of the primary and secondary capacitive sensors to control operation of the electronic faucet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.