Transparent parametric transducer and related methods
US9769573B2 · kind B2 · utility
5Cited by
7References
24Claims
0Family size
Assignee
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Key dates
| Filing date | May 20, 2016 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | May 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A transparent ultrasonic emitter includes a first transparent conductive layer; a second transparent conductive layer; and a plurality of transparent spacers disposed between the first and second transparent layers conductive of the ultrasonic audio speaker, the transparent spacers having a thickness and being arranged to define an open area between the first and second transparent layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.