Headphone set and method of producing the same
US8175315B2 · kind B2 · utility
38Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2008 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Dec 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A headphone set has at least one speaker unit and a housing that encloses the speaker unit. The housing has an elastic protruding portion having a cavity therein. A sound-emitting portion is formed as protruding from a vibrating zone of the speaker unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.