Loudspeaker and method for improving directivity, head-mounted device and method
US11128945B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2016 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Dec 31, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure discloses a loudspeaker and a method for improving directivity of a sound of a loudspeaker, a head-mounted device and a method for improving a sound effect of a head-mounted device. The loudspeaker comprises: a housing, a magnetic circuit unit that is provided within the housing and is for generating a magnetic force, a voice coil that vibrates by the magnetic force, and a vibrating diaphragm that in response to the vibration of the voice coil vibrates and generates a sound; wherein the loudspeaker further comprises a curved-surface extension structure; the curved-surface extension structure connects to the vibrating diaphragm, and radiating the sound generated by the vibrating diaphragm into a predetermined directivity range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.