Oscillator and electronic device
US9252711B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2012 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Mar 8, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is an oscillator (100) including a piezoelectric body (70) that has a plurality of protrusions (72) on one surface thereof, a plurality of electrodes (80) that are respectively provided on the plurality of protrusions (72) so as to be separated from each other, and a plurality of electrodes (82) that are provided on the other surface opposite to the one surface of the piezoelectric body (70) so that each of the electrodes faces only one electrode (80). Thus, it is possible to prevent variation in acoustic characteristics from occurring. Therefore, the oscillator capable of improving the acoustic characteristics of an electronic device is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.