Method and apparatus for brightness control of indication lights
US7477158B2 · kind B2 · utility
1Cited by
8References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2005 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Sep 22, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for gradually increasing the brightness of an indicator light. An activation signal is received indicating that the indicator light should be lit. Upon receipt of the activation signal, the brightness of the indicator light gradually increases. Upon detection of deactivation of the activation signal, the indicator light is extinguished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.