Headphone and acoustic characteristic adjusting method
US9883280B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2014 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Jul 2, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
[Object] To make it possible to improve an acoustic characteristic.[Solution] There is provided a headphone including a driver unit that includes a diaphragm, a housing that accommodates the driver unit, and forms a sealed-type front-face air chamber spatially blocked from an outside except for an opening for sound output on a front face side provided with the diaphragm of the driver unit, and an acoustic tube whose end is directly connected to a first ventilation hole provided in a frame of the driver unit, and that spatially connects a driver-unit rear-face air chamber formed between the frame and the diaphragm with the outside of the driver unit via a tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.