Power saving system and method for loudspeaker
US8605918B2 · kind B2 · utility
0Cited by
3References
6Claims
0Family size
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Key dates
| Filing date | Jul 31, 2011 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Jul 8, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A power saving system includes a sensor, a processor, a timer, and a switch. The sensor senses movements in the diaphragm of the loudspeaker. The processor determines whether the loudspeaker is power-on and in use or power-on but not in use. The processor further determines whether a preset period of time has elapsed since the indication of power-on but not in use was first given. If the preset period of time has elapsed, the processor further controls the switch to disconnect the power source from the loudspeaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.