Speaker and speaker diaphragm
US6957714B2 · kind B2 · utility
20Cited by
14References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 14, 2003 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Feb 26, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The speaker has a diaphragm main body 30 supported resiliently on a frame 23 via an edge portion 31 around its outer circumference, and the groove ribs 35 integrally formed in the edge portion 31, wherein a regulation member 37 for partially improving a flexural strength of the edge portion 31 is provided on a part of the front or back face of the edge portion 31.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.