Hearing instrument
US9781523B2 · kind B2 · utility
3Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2011 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Jul 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R29/006
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hearing instrument microphone device incudes at least two microphone sound ports (or sound inlets), a pressure difference microphone in communication with at least two of the sound ports and a pressure microphone in communication with at least one of the sound ports, wherein the acoustic centers of the pressure difference microphone and the pressure microphone essentially coincide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.