Sound control candle light
US8496345B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2010 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Feb 14, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sound control candle light includes a candle light having a lampshade shaped like the flame of a candle and a light-emitting device surrounded by the lampshade, a sound generator having an enclosed sound pipe with a mouthpiece and a reed mounted inside the enclosed sound pipe adjacent to the mouthpiece and vibratable to produce a sound at a predetermined frequency when a person blows in the mouthpiece, a sound sensor mounted inside the enclosed sound pipe for sensing the sound produced by the reed and providing a corresponding sensing signal, and a control circuit adapted for receiving the sensing signal provided by the sound sensor to drive on/off the light-emitting device. Thus, a specific sound frequency different from surrounding noises can be produced, enabling the sound control candle light to be alternatively turned on and off when it is blown by the user, assuring high control reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.