Bone conduction speaker and bone conduction headphone device
US10917709B2 · kind B2 · utility
0Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2019 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Jun 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bone conduction speaker includes a vibration driver that includes a magnetic circuit and a vibration plate, and that is configured to convert sound into vibration, a vibration body configured to hold a side of the vibration driver, which is adjacent to the magnetic circuit, to come into contact with a subject, and to transmit vibration of the vibration driver to the subject, and a lid body configured to cover a side of the vibration driver, which is adjacent to the vibration plate, without being in contact with the vibration driver, and to substantially seal the vibration driver together with the vibration body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.