Headphones with frequency-based divisions
US10257607B2 · kind B2 · utility
2Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2017 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Feb 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/105
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to a headphone device including zones to separate different frequency ranges for enhancing and improving sound quality. The headphone device includes more than one cavities and second auxiliary holes. The second auxiliary holes are configured for most bass or low-frequency to enter a second cavity through the second auxiliary holes and to have a better frequency division effect and to improve the audio quality of the headphone device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.