Single Chamber headphone apparatus
US8605932B2 · kind B2 · utility
1Cited by
15References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2008 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Oct 13, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A single chamber headphone apparatus and earcup design is provided which enhances wearer comfort, reduces headphone weight, facilitates ease of use, maintenance and operation by providing an improved internal chamber and battery cap configuration. Sound quality is improved by eliminating acoustic problems associated with two-chamber headset designs. A volume balance control is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.