Active noise reduction earphone
US10820088B2 · kind B2 · utility
2Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Oct 16, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An active noise reduction (ANR) earphone with a housing comprising a front cavity and an exit that is fluidly coupled to the front cavity. An acoustic driver is configured to deliver acoustic energy into the front cavity of the housing. A nozzle is coupled to the housing and is configured to direct acoustic energy from the housing exit to a nozzle exit opening. A microphone is located in the nozzle. A compliant sealing structure is coupled to the nozzle and is configured to couple the earphone to an ear of a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.