Earphone having a controlled acoustic leak port
US8971561B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Oct 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An earphone having an earphone housing including a tip portion dimensioned to be inserted into an ear canal of a wearer, a body portion extending outward from the tip portion, and a tube portion extending from the body portion. The body portion has a face portion that faces a pinna region of the ear when the tip portion is inserted into the ear canal. A primary output opening, that outputs sound from a driver in the housing to the ear canal, is formed in the tip portion. A secondary output opening, that outputs air from the ear canal to the surrounding environment, is formed in the face portion. The primary output opening and the secondary output opening are horizontally aligned when the tube portion is positioned vertically downward and an angle formed between the primary output opening, the tube portion and the secondary output opening is less than 90 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.