Piezo speaker pressure sensor
US8243964B2 · kind B2 · utility
3Cited by
0References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 13, 2008 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Jun 16, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A piezo speaker pressure sensor that includes a bladder and a piezo speaker element. The bladder abuts the piezo speaker element. A pressure may be sensed from the piezo speaker element proportional to a pressure exerted on the bladder in a direction of the piezo speaker element. The piezo speaker element functions as a speaker when audio signals are received by the piezo speaker element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.